• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a device for separating liquid from a gas stream in a liquid-injected compressor, the device comprising a first vessel comprising a first bottom plate, a first side wall comprising an inlet in fluid communication with an outlet for compressed gas and a cover comprising an outlet, the device further comprising: - a first separating means; - a second separation means; - a third separation means; the device further comprising - an inlet channel in fluid communication with the inlet, the inlet channel comprising an upper panel and a lower panel, wherein at least the upper panel creates a slope, with the highest point on the first side wall and the lowest point at the opposite end.
    公开号:BE1025205B1
    申请号:E2017/5477
    申请日:2017-07-04
    公开日:2018-12-11
    发明作者:Glenn Vinck
    申请人:Atlas Copco Airpower Naamloze Vennootschap；
    IPC主号:
    专利说明:

    Device for separating liquid from a gas stream in a liquid-injected compressor and method thereof.
    This invention relates to a device for separating liquid from a gas stream in a liquid-injected compressor, the device comprising a first vessel comprising a first bottom plate, a first side wall comprising an inlet in fluid communication with an outlet for compressed gas and a lid comprising the outlet, the device further comprising: - a first separation means comprising a first and a second liquid separation zone, the first and second liquid separation zone being in fluid communication with the inlet; wherein the first and second liquid separation zones each comprise a first plate on which a circular wall is mounted, a first and a second fluid channel being formed between each of the circular wall and the first side wall; - a second separation means provided in each of the first and second liquid separation zones, wherein the second separation means comprises at least one cyclone mounted therein; - a third separating means comprising at least one filter mounted therein, wherein the filter is in fluid communication with one of the cyclones and wherein the third separating means is in fluid communication with the outlet; and - wherein the inlet channel comprises a fin-like structure to divide the gas flowing through the inlet into two flows.
    The industry is constantly trying to perfect existing liquid separators because the requirements for the purity of the gas leaving such liquid separators are becoming increasingly stringent.
    Although existing liquid separators offer a good solution, such as for example those defined in WO 2016 / 172.770 A with Atlas Copco Airpower as Applicant, the companies that use such liquid separators continuously try to perfect such devices.
    Accordingly, it is an object of the present invention to provide an efficient liquid separator, for which the purity of the gas flowing through the outlet is increased.
    It is another object of the present invention to provide a solution to better protect the parts of the liquid separator against the potentially damaging force of the fluid entering it.
    Another object of the present invention is to provide a simple and inexpensive alternative to existing devices.
    The present invention provides a solution to at least one of the above and / or other problems by providing a device for separating a liquid from a gas stream in a liquid-injected compressor, the device comprising a first vessel comprising a first bottom plate , a first side wall comprising an inlet in fluid communication with an outlet for compressed gas and a lid comprising an outlet, the device further comprising: - a first separation means comprising a first and a second liquid separation zone, wherein the first and second liquid separation zone are in fluid communication with the inlet; wherein the first and second liquid separation zones each comprise a first plate on which a circular wall is mounted, a first and a second fluid channel being formed between each of the circular wall and the first side wall; - a second separation means provided in each of the first and second liquid separation zones, the second separation means comprising at least one cyclone mounted therein; - a third separating means comprising at least one filter mounted therein, wherein the filter is in fluid communication with one of the cyclones and wherein the third separating means is in fluid communication with the outlet; - an inlet channel in fluid communication with the inlet, the inlet channel comprising a fin-like structure for dividing the gas flowing through the inlet into two flows; the device further comprising - the inlet channel comprising an upper panel and a lower panel one end of which is adapted to be mounted on the first side wall, at least the upper panel creating a slope, with the highest point on the first side wall and the lowest point at the opposite end.
    Because the inlet channel comprises an upper panel and a lower panel, the fluid flowing through the inlet is guided in a downward movement, forcing it toward the bottom plate. By assuming such a movement, the liquid droplets present in the fluid will fall more efficiently under the influence of gravity and more liquid will be collected.
    Furthermore, a symbiotic effect occurs because the device comprises such an inlet channel, at least the upper panel of which is provided at an angle and the two circular walls form a first and second fluid channel, because the fluid is not only guided in a downward movement while the fluid flows in the direction of the first and second fluid channel, but such a movement is maintained through such channels, which further increases the amount of extracted liquid.
    By collecting a larger amount of liquid immediately after it enters the device, the cyclones and the at least one filter are further protected against the potentially damaging properties of the liquid, which reduces the frequency of maintenance and the life of the cyclones and of the least one filter.
    The present invention further relates to a method for separating a liquid from a gas stream in a liquid-injected compressor, the method comprising the steps of: - providing a first separation means comprising a first and a second liquid separation zone, wherein the first and second liquid separation zones each comprise a first plate on which a circular wall is mounted and a first and second fluid channel are provided between each of the circular wall and a first side wall; - providing a second separation means in each of the first and second liquid separation zones, and providing at least one cyclone therein; - providing a third separating means comprising at least one filter, wherein the filter is provided in fluid communication with one of the cyclones; - providing a first vessel comprising the first and second liquid separation zone, the second separation means and the third separation means, wherein the first vessel comprises the first side wall comprising the inlet, a first bottom plate and a lid comprising an outlet; - providing a fin-like structure for splitting the fluid flow from the inlet through the first and second fluid channels; - guiding the fluid from the first and second liquid separation zone through the second separating means, collecting the liquid dripping from the fluid on the first bottom plate, and further guiding the fluid through the third separating means before it is passed through the outlet ; the method further comprising the steps of: providing an inlet channel comprising an upper panel and a lower panel and guiding the fluid flowing through the inlet channel in a downward movement and further splitting it into two streams through the first and second fluid channel, through a fin.
    In the context of the present invention, it is to be understood that the advantages shown with respect to the device for separating liquid from a gas stream also apply to the method for separating a liquid from a gas stream.
    The present invention further relates to a device for separating liquid from a gas stream in a liquid-injected vacuum pump, the device comprising a first bottom plate, a first side wall comprising an inlet in fluid communication with an outlet of the vacuum pump and a lid comprising a outlet, the device further comprising: - a first separation means comprising a first and a second liquid separation zone, the first and second liquid separation zone being in fluid communication with the inlet; wherein the first and second liquid separation zones each comprise a first plate on which a circular wall is mounted, a first and a second fluid channel being formed between each of the circular wall and the first side wall; - a second separation means provided in each of the first and second liquid separation zones, wherein the second separation means comprises at least one cyclone mounted therein; - a third separating means comprising at least one filter mounted therein, wherein the filter is in fluid communication with one of the cyclones and wherein the third separating means is in fluid communication with the outlet; - an inlet channel in fluid communication with the inlet, the inlet channel comprising a fin-like structure to divide the gas flowing through the inlet into two flows, the device further comprising: - the inlet channel comprising an upper panel and a lower panel one end of which is adapted to be mounted on the side wall, at least the upper panel creating a slope, with the highest point on the first side wall and the lowest point at the opposite end.
    In the context of the present invention, it should be understood that the advantages shown with regard to the device for separating liquid from a gas stream in a liquid-injected compressor also apply to a device for separating liquid from a gas stream in a liquid-injected vacuum pump.
    With the insight to better illustrate the features of the invention, in the following some preferred configurations according to the present invention are described by way of example without any limiting nature, with reference to the accompanying drawings, in which: figure 1 schematically shows a device for shows separation of liquid from a gas stream mounted in a liquid-injected compressor; figure 2 schematically shows a cross-section of a device according to an embodiment of the present invention, along the line I-I in figure 1; Figure 3 shows a top view of the first liquid separation zone, the second liquid separation zone and a part of the inlet channel according to an embodiment of the present invention; Fig. 4 schematically shows a cross section of a device according to an embodiment of the present invention, taken on the line ΪΙ-ΙΙ in Fig. 1; Figure 5 schematically shows a side view of a second vessel and of a circular wall according to an embodiment of the present invention; Figure 6 shows a top view of the first liquid separation zone, the second liquid separation zone and the inlet channel according to an embodiment of the present invention; and Figure 7 schematically shows a device for separating liquid from a gas stream mounted in a liquid-injected vacuum pump.
    Figure 1 shows a device 1 for separating liquid from a gas stream, the device 1 comprising an inlet 2 connected to an outlet for compressed gas 3 of the compressor 4 and an outlet 5 which supplies relatively pure gas to a user network 6.
    The compressor 4 is in this case a liquid-injected compressor.
    The compressor 4 typically has a gasinate 7 through which ambient air is sucked in or process gas is sucked in from a user system (not shown).
    As can be seen from Figure 2, the device 1 comprises a first vessel 8 which comprises a first bottom plate 9, a first side wall 10 which comprises the inlet 2 in fluid communication with the outlet for compressed gas 3 and a cover 11 which comprises the outlet 5.
    The device 1 further comprises a separating means comprising a first and a second liquid separation zone, 12a and 12b, wherein the fluid entering through the inlet 2 flows in the direction of the first and second liquid separation zone, 12a and 12b.
    The first and second liquid separation zone, 12a and 12b, each further comprise a first plate, 13a or 13b, on which a circular wall, 14a or 14b, is mounted.
    For efficiently separating the liquid particles from the gas stream, the device 1 further comprises a first and a second fluid channel, 15a and 15b, which are formed between each of the circular walls, 14a and 14b, and the first side wall 10, such as shown in Figure 3.
    Reference is again made to Figure 2, wherein the device 1 is further provided with a first separating means comprising the first and second liquid separating zone, 12a and 12b, the first separating means comprising at least one cyclone 16 mounted therein.
    The device further comprises a second separating means which comprises at least one filter 17 mounted therein. To facilitate efficient elimination of the fluid particles, the filter 17 is in fluid communication with one of the cyclones 16.
    The inlet of the filter 17 is preferably mounted directly on the outlet of the cyclone 16.
    As a result, the fluid flowing out of the filter 17 flows further through the outlet 5.
    As shown in Figures 3 and 4, the device 1 further comprises an inlet channel 18 which is in fluid communication with the inlet 2.
    Such an inlet channel 18 preferably comprises an upper panel 19 and a lower panel 20, the upper panel 19 and the lower panel 20 each having one end adapted to be mounted on the first side wall 10, the upper panel 19 being preferably on the first side wall 10 above the inlet 2 and the bottom panel 20 is attached on the first side wall 10 below the inlet 2. Accordingly, the inlet 2 is included between the lower panel 20 and the upper panel 19.
    To facilitate the extraction of the fluid particles from the fluid flow, at least the upper panel 19 creates a slope, with the highest point on the first side wall 10 and the lowest point at the opposite end.
    The creation of a slope by the upper panel 19 is understood to mean that the upper panel 19 is mounted such that it projects downwardly from the side wall 10 and in the direction of the first and second fluid channels 15a and 15b.
    In other words, there is an acute angle at the intersection line between the upper panel 19 and the first side wall 10, the acute angle being formed by the upper panel 19 and the first side wall 10. A sharp angle should be understood as an angle smaller than 90 ° (ninety degrees).
    Furthermore, the inlet channel 18 for dividing the gas flowing through the inlet 2 into two flows comprises a fin-like structure 21.
    Preferably, the vane 21 is mounted on the lower panel 20.
    Because the vane 21 is mounted on the lower panel 20, the fluid flowing through the inlet 2 can only flow through the first and second fluid channels 15a and 15b.
    Because the fin 21 helps to split the flow of fluid into two flows, the device 1 is further constructed in such a way that two approximately identical halves are formed, the first comprising the first liquid separation zone 12a and the second containing the second liquid separation zone 12b and because the pressure in the two halves is approximately the same, the fluid flowing through the inlet 2 is split into two approximately the same flows.
    Because the fluid entering the device 1 assumes such a pattern, the efficiency of the oil separation is maintained for a longer time, because such a device 1 encounters the possibility of one-half functional problems due to a larger volume of liquid reaching its parts in minimize comparison with the other half.
    To keep production costs low, the vane 21 comprises a first and a second continuous vertical structure, 21a and 21b, which are joined together at an angle.
    Preferably, the first and second continuous vertical structure 21a and 21b are mounted on the first side wall 10. The fin 21 is thereby mounted on the opposite side of the inlet 2 and relatively centrally with respect to the inlet 2.
    To maintain a circular motion of the fluid flowing through the first and second fluid channels 15a and 15b, one of the first and second continuous vertical structures, 21a and 21b, is preferably in the form of a circular arc.
    More preferably, the first side wall 10 and each of the first and second continuous vertical structures, 21a and 21b, form a circular arc. In other words, at the point where one of the two continuous vertical structures 21a and 21b is mounted on the first side wall 10, the circular arc formed by each of the first and second continuous vertical structures, 21a and 21b, is continued by the curvature of the first side wall 10.
    The circular arc is preferably, but not limited to, formed by each of the first and second continuous vertical structures, 21a and 21b, and the curvature of the first side wall 10 is a continuous circular arc, without any turning points.
    Because such a continuous circular arc is formed, the fluid particles present in the fluid flowing through the inlet 2 will not directly strike the first and second continuous vertical structure, 21a and 21b, or the first side wall, but will adhere to it and sliding under the influence of gravity in the direction of the lower panel 20 and further in the direction of the first bottom plate 9, which eliminates the risk that such liquid particles collide in the flow and the amount of liquid flowing along the length of the inlet channel 18, the first fluid channel 15a and second fluid channel 15b are extracted.
    As can be seen from Figure 3, therefore, the first side wall 10 will be in the form of two semicircles united by a central portion comprising the inlet channel 18.
    In a preferred embodiment of the present invention, and without being limited thereto, each of the two continuous vertical structures, 21a and 21b, is parallel to each of the circular walls, 14a and 14b.
    Preferably, the circular walls 14a and 14b are each mounted on one end on the first side wall 10, then on the inlet 2, and on the other end on the respective first plate 13a and 13b.
    Accordingly, the inlet 2 is bounded by the circular walls 14a and 14b, the upper panel 19 and the lower panel 20, as can be seen in Figure 2.
    In a preferred embodiment and without being limited thereto, the upper panel 19 is joined to the fin 21 at its lower end, or the end on the opposite side of the inlet 2.
    Accordingly, the fluid flowing through the inlet 2 will be continuously guided downwards, at least until it reaches the fin 21, which increases the efficiency of liquid extraction.
    In another embodiment of the present invention, the top panel 19 can only be mounted on the first side wall 10.
    In a further embodiment according to the present invention, the upper panel 19 can be attached to the first side wall 10 and to the circular walls 14a and 14b.
    By "fastening" is meant any mounting technique for joining the upper panel 19 with the first side wall 10 and possibly with the circular walls 14a and 14b, such as welding, gluing or bolting, using screws or a other technology. Furthermore, it should not be excluded that the top panel 19 may be a cast component in the first side wall and possibly in the circular walls 14a and 14b.
    In yet another embodiment of the present invention, the top panel 19 may have a length LL 'selected between about 25% of the depth LL "of the first vessel 8 and about 90% of the depth LL".
    Preferably, but not limited to, the length LL 'of the upper panel 19 is chosen so that it reaches at least the fin 21.
    In another embodiment of the present invention, the top panel 19 and the bottom panel 20 are parallel to each other.
    Due to such a design feature, the device 1 according to the present invention eliminates the risk that the liquid particles directly strike the lower panel 20 and collide back into the fluid flow.
    In another embodiment of the present invention, the slope of the upper panel 19 and / or of the lower panel 20, or the angle α in Figure 4, is at least about 10 ° (ten degrees), the angle of 10 ° being measured at the intersection between the upper panel 19 and a horizontal surface. As shown in Figure 4, the angle α can be measured at the intersection line between the divider plate 22 and the top panel 19 if the divider plate 22 and the top panel 19 are mounted at the same location on the first side wall 10.
    In addition, the angle α can be measured between the upper panel 19 and a surface parallel to the separation plate 22, the surface being marked by the location where the upper panel 19 intersects the first side wall 10.
    If figure 4 is again considered, then the angle α can therefore be measured between the virtual surface AA 'drawn along and in line with the surface defined by the upper panel 19 and the virtual surface AA "drawn from the place where the upper panel 19 intersects the first side wall 10 and parallel to or along and in line with the surface defined by the partition plate 22.
    In the context of the present invention, it should be understood that the slope may be greater or smaller than 10 ° (ten degrees) and preferably the slope differs from 0 ° (zero degrees).
    If we were to draw a surface CC 'along and in line with the surface defined by the lower panel 20, then the maximum angle O1 of the slope can preferably, without being limited thereto, be determined as follows: if we would consider the virtual point HH at the intersection between the surface CC 'and the first side wall 10, the virtual point HH being at a height H1 measured from the level of the first bottom plate 9, then the height H1 can be at its lowest point be approximately three times the maximum height H2 of liquid that can be present in the first vessel 8, wherein the height H2 can also be measured from the level of the first bottom plate 9.
    Furthermore, it is to be understood that the present invention can also be implemented for a device 1 with an angle α for the slope with a value selected between approximately 10 ° and a maximum angle determined by a virtual surface drawn by the point HH ' , for example, but not limited to: the angle α can be chosen as a value between about 10 ° and about 45 ° (forty-five degrees), more preferably the angle α can be chosen as a value between about 10 ° and about 30 ° (thirty degrees), even more preferably the angle α can be chosen between about 10 ° and about 20 ° (twenty degrees).
    In another embodiment of the present invention, the slope of the upper panel 19 may have the same value as the slope of the lower panel 20 or may have different values.
    The first vessel 8 further comprises a first liquid extracting means, such as, for example, a valve, a tube, a tap or the like, mounted on the first side wall 10, for draining the liquid that has collected on the first bottom plate 9 and possibly the recirculation of such liquid by injecting it into the compressor 4.
    The maximum height H2 of liquid in the first vessel 8 is the maximum permitted height at which the first liquid extracting agent begins to extract liquid from the first vessel 8.
    In a preferred embodiment and without being limited thereto, the liquid is oil. Another liquid, such as water or another lubricant, should also not be excluded in the present invention.
    For separating the second separating means from the third separating means, the device 1 further comprises a separating plate 22 on which the filter 17 is mounted.
    Because such a separation plate 22 is mounted, the fluid flowing through the first and second liquid separation zones 12a and 12b cannot reach the third separation means without flowing through the at least one cyclone 16. Accordingly, a required minimum concentration of liquid in the fluid flowing through the third separation means is ensured.
    To further control the path of the fluid flowing through the inlet 2, the circular walls 14a and 14b preferably extend between the respective first plate 13a or 13b and the separation plate 22. Accordingly, the fluid flowing through the inlet 2 cannot directly reach the third separation means, but will first have to flow through the inlet channel 18, the first and second fluid channels 15a and 15b and further through the at least one cyclone 15.
    In another preferred embodiment and without being limited thereto, the fin 21 is mounted on the lower panel 20 and on the partition plate 22.
    In yet another embodiment, the lower panel 20 is a continuous structure with a length DD 'with a value selected between about 25% of the depth LL "of the first vessel 8 and about 95% of the depth LL".
    In another embodiment of the present invention, the lower panel 20 is a continuous structure along the depth of the first vessel 8. In other words, the lower panel 20 may have a length DD 'which is equal to the depth LL "of the first barrel 8.
    In yet another embodiment of the present invention, the lower panel 20 may be a continuous structure extending along at least a portion of the first and second fluid channels 15a and 15b. Another possibility is that the lower panel 20 extends along the length of the first and second fluid duct 15a and 15b.
    In a further embodiment according to the present invention, the lower panel 20 may be in the form of a perforated panel or the lower panel 20 may comprise perforations at certain intervals, which makes it possible for the liquid to reach the first bottom plate 9.
    To maintain a circular motion such that the fluid reaches the first liquid separation zone 12a and the second liquid separation zone 12b, the first and second liquid separation zone 12a and 12b are relatively circular.
    Accordingly, a first cyclone is realized from the inlet 2 along the inlet channel 18 and the first and second fluid channels 15a and 15b. The circular motion of the fluid is continued in the first and second fluid separation zones 12a and 12b until the fluid enters the at least one cyclone 16.
    In another embodiment of the present invention, at least one circular wall, 14a or 14b, has a length of at least 50% of the length of the outer contour of the first plate, 13a or 13b.
    In a preferred embodiment of the present invention, the circular walls 14a and 14b each have a length of at least 50% of the length of the outer contour of each of the respective first plate, 13a and 13b.
    By increasing the length of the circular walls 14a and 14b, the first fluid channel 15a and the second fluid channel 15b are made longer, forcing the fluid to follow a longer path through the first and second fluid channels 15a and 15b and the amount of liquid that is extracted before the first liquid separation zone 12a and the second liquid separation zone 12b are respectively increased.
    The length of the circular walls 14a and 14b can be made even longer. As shown in Figure 3, if we were to draw the axis 00 'and the axis 00 ", the length of the circular walls 14a and 14b can be chosen at any point between the axis 00' and the axis 00".
    Preferably, but not limited to, the length of the circular walls 14a and 14b is chosen such that the circular walls 14a and 14b end in the vicinity of the virtual axis 00 '.
    Because the length of the circular walls 14a and 14b is increased, the fluid flowing through the first and second fluid channels 15a and 15b would be held longer in a downward and circular motion, forcing such fluid to lose more fluid particles before the inlet of the at least one cyclone 16 is reached. Furthermore, the circular motion will still be maintained in the first liquid separation zone 12a and the second liquid separation zone 12b, until the fluid reaches the inlet of the at least one cyclone 16.
    Tests have shown that by the time the fluid reaches the first liquid separation zone 12a and the second liquid separation zone 12b, respectively, most of the fluid trapped therein is below the level of the first plate 13a and 13b respectively, meaning that the amount liquid particles reaching the at least one cyclone 16 is much smaller than with existing devices.
    In another embodiment of the present invention, the circular walls 14a and 14b may have a constant height along their length, such height being defined by the distance between each of the first plate 13a and 13b and the separator plate 22, respectively.
    Because the space defined between the lower panel 20 and the partition plate 22 may be larger than the space defined by each of the first plate 13a and 13b and the partition plate 22, the height of the circular walls is defined by the distance between the lower panel 20 and the separation plate 22, such that the inlet channel 18 will be defined by at least the circular walls 14a and 14b, the upper panel 19 and the lower panel 20.
    Therefore, after the inlet channel 18 has finished, the height of the circular wall 14a and 14b can be constant and equal to the distance between the lower panel 20 and the separator plate at the location where the inlet channel 18 is terminated, and therefore where the lower panel is terminated 20 is at its lowest point.
    In another embodiment of the present invention, the circular walls 14a and 14b can each maintain a height over a minimum distance that is equal to the distance between the lower panel 20 and the partition plate 22 at the lowest point of the lower panel 20 and then such a height would preferably gradually decrease until the level of each of the first plate 13a and 13b, respectively, is reached.
    In yet another embodiment of the present invention, as shown in Figure 5, the height of each of the circular walls 14a and 14b may gradually decrease from where the inlet channel 18 is terminated and until the level of each of the first plate 13a and 13b is reached, or until the location or proximity of the location where the virtual axis 00 'is defined on the first plate 13a and 13b is reached. After the location or proximity of the location defined by the virtual axis 00 'is reached, the circular walls 14a and 14b are cut perpendicularly or approximately perpendicular to the first plate 13a or 13b. Perpendicular or approximately perpendicular is to be understood to mean that an angle of 90 ° (ninety degrees) or an angle of approximately 90 ° (ninety degrees) arises between the end of the circular wall 14a or 14b and the respective first plate 13a or 13b.
    In another embodiment of the present invention, the device 1 further comprises a second vessel 24 comprising a second bottom plate 25 and a second side wall 26, the first plate 13a and 13b each being mounted on the second side wall 26.
    Preferably, the inlet channel 18 extends into the second vessel 24, and runs therethrough to the center.
    Furthermore, the inlet channel 18 is preferably not directly in fluid communication with the second vessel 24, the inlet channel 18 being external to the second vessel 24.
    Preferably, the first plate 13a and 13b each comprise a plurality of holes, with a cyclone 16 mounted in each of the holes. The number of cyclones 16 is selected according to the capacity of the device 1, such a number being a number selected between six and sixteen. More preferably, the first plates 13a and 13b each comprise nine, twelve or thirteen holes, with a cyclone 16 mounted in each hole.
    Furthermore, a filter 17 is preferably mounted at the outlet of each of the cyclones 16, such that the fluid exiting the cyclone 16 flows through the filter 17 before it reaches the outlet 5.
    Each of the cyclones 16 is thereby mounted in the hole of the first plate 13a and 13b, the liquid extracted in the cyclones dripping onto the second bottom plate 25.
    Tests have shown that by applying such a configuration, the liquid reaching the inlets of the cyclones 16 has a very high purity, and that approximately 95% of the liquid present in the fluid flowing through the inlet 2 is separated and collected on the first bottom plate 9, and reaches a very high purity at the outlet 5, where about 98% of the liquid would have been separated from the fluid.
    In a preferred embodiment of the present invention, the second vessel 24 comprises a second liquid extractant 27.
    The first liquid extractant 23 and the second liquid extractant 27 can be selected from a group comprising: a one-way valve, a manually or automatically operated valve, a hose, a tap or a tube, possibly, but not necessarily connected to a suction device, or the like.
    Furthermore, it is to be understood that the first liquid extractant 23 may be of the same type as the second liquid extractant 27 or may be different.
    In another embodiment of the present invention, the first plates 13a and 13b are each mounted on the first side wall 10 by, for example, but not limited to, welding, bolting or using additional fastening mechanisms.
    In yet another embodiment according to the present invention, the first plates 13a and 13b are each mounted on the second side wall 26 and the second side wall 26 is further attached to the first side wall 10 by the same possible techniques as mentioned above with regard to fixing the first plates 13a and 13b on the first side wall.
    In a preferred embodiment according to the present invention, a channel is formed between the second side wall 26 and the first side wall 10, wherein the liquid extracted from the fluid drips and reaches the first bottom plate 9,
    It is further preferred that the fastening means of the first plates 13a and 13b are realized in such a way that liquid can drip between the fastening means and reach the first bottom plate 9.
    In another embodiment according to the present invention, the second vessel 24 is attached to the first bottom plate 9, wherein the mounting is realized directly between the first bottom plate 9 and the second bottom plate 25 or the mounting is carried out using, for example, columns between the first bottom plate 9 and second bottom plate 25.
    The functioning of the device 1 according to the present invention is very simple and is as follows.
    The fluid flowing out of the compressed gas outlet 3 of the liquid-injected compressor 4 is passed through the inlet 2 of the device 1, the fluid comprising a gas and fluid particles.
    The flow of fluid entering through the inlet 2 passes through the inlet channel 18 and is then split into two flows through the fin 21, each of the two flows passing through one of the first or second fluid channel 15a or 15b and the first fluid separation zone 12a or the second liquid separation zone 12b.
    The fluid further reaches a second separating means comprising at least one cyclone 16 and further a third separating means comprising at least one filter 17 mounted at the outlet of the at least one cyclone 16.
    After the fluid flows through the at least one filter 17, it is led through the outlet 4 in the direction of the user network 6.
    At least along the inlet channel 18, the fluid is guided in a downward movement.
    The downward movement is to be considered as the direction of gravity.
    Although the fluid passes through the inlet channel 18, the first and second fluid channels 15a and 15b, the first liquid separation zone 12a and the second liquid separation zone 12b, the liquid separated from the gas stream is collected on the first bottom plate 9 from which it is subsequently extracted by means of the first liquid extractant 23 is extracted.
    Because of the shape of the inlet channel 18, the shape of the circular walls 14a and 14b and of the fin 21, a downward and circular movement is imposed on the fluid entering through the inlet 2.
    Accordingly, a synergistic effect occurs: due to the downward movement, the liquid particles drip more easily under the influence of gravity in the direction of the lower panel 20 and further in the direction of the first bottom plate 9; and because of the circular movement the liquid particles are pushed under the influence of the centrifugal force in the direction of the first side wall 10, where they adhere to it and further drip in the direction of the first bottom plate 9. Such a synergistic effect thereby increases the efficiency of liquid separation.
    In a preferred embodiment according to the present invention, at least one hole is provided on the first plate 13a and 13b for mounting the at least one cyclone 16 therein.
    A second vessel 24 is further provided, wherein the second vessel 24 comprises a second bottom plate 25, a second side wall 26 and the first plates 13a and 13b. The liquid dripping from the at least one cyclone 16 is collected on the second bottom plate 25.
    Because a second vessel 24 is provided with a second bottom plate 25, the liquid collected before and in the first liquid separation zone 12a and the second liquid separation zone 12b is separated from the liquid collected with the aid of the cyclones that are present on the first plate 13a and 13b. As a result, the risk of the collected liquid re-entering the gas stream is minimized if not eliminated.
    Furthermore, the downward and circular motion is maintained for a longer distance by guiding the fluid flowing out of the inlet 2 through the first and second fluid channels 15a and 15b along at least 50% of the length of the outer contour of the respective contour first plate, 13a and 13b flows.
    To increase the efficiency of liquid separation, a separation plate 22 is provided for separating the second separation means from the third separation means.
    In the context of the present invention, it should be understood that the device for separating liquid from a gas stream and the method for separating a liquid from a gas stream are not limited to liquid-injected compressors, but that such a device and method can also be implemented in a liquid-injected vacuum pump.
    If the device 101 is used in a liquid-injected vacuum pump 104, the design of the system closely resembles that when the device 1 is used in a liquid-injected compressor 4.
    The device 101 herein comprises an inlet 102 which is connected to a gas outlet 103 of the vacuum pump 104.
    The only differences are that the liquid-injected vacuum pump 104 receives a gas at its inlet 107 from a user network 106 and that the gas flowing from the outlet 105 of the device 101 is further evacuated to the atmosphere or to an external system 108, as shown in Figure 7.
    In the context of the present invention, it should be understood that the various features as defined in the current document can be used in any combination without departing from the scope of the invention.
    The present invention is in no way limited to the embodiments described as examples and shown in the drawings, and such a gas filter 1 can be implemented in all types of variants without departing from the scope of the invention.
    权利要求:
    Claims (21)
    [1]
    Conclusions.
    A device for separating liquid from a gas stream in a liquid-injected compressor (4), the device (1) comprising a first vessel (8) comprising a first bottom plate (9), a first side wall (10) comprising an inlet (2) in fluid communication with an outlet for compressed gas (3) and a lid (11) comprising an outlet (5), the device (1) further comprising: - a first separation means comprising a first and a second liquid separation zone (12a and 12b), wherein the first and second liquid separation zone (12a, 12b) are in fluid communication with the inlet (2); wherein the first and second liquid separation zone (12a, 12b) each comprise a first plate (13a, 13b) on which a circular wall (14a, 14b) is mounted, through which a first and a second fluid channel (15a, 15b) are located between each of the circular wall (14a, 14b) and the first side wall (10) are formed; - a second separation means provided in each of the first and second liquid separation zones (12a, 12b), wherein the second separation means comprises at least one cyclone (16) mounted therein; - a third separation means comprising at least one filter (17) mounted therein, wherein the filter (17) is in fluid communication with one of the cyclones (16) and wherein the third separation means is in fluid communication with the outlet (5); - an inlet channel (18) which is in fluid communication with the inlet (2), the inlet channel (18) comprising a fin-like structure (21) for dividing the gas flowing through the inlet (2) into two flows, characterized by the device (1) further comprising - the inlet channel 1 (18) comprising an upper panel (19) and a lower panel (20) one end of which is adapted to be mounted on the first side wall (10), wherein at least the upper panel (19) creates a slope, with the highest point on the first side wall (10) and the lowest point at the opposite end.
    [2]
    Device according to claim 1, characterized in that the fin (21) is adapted to be mounted on the lower panel (20).
    [3]
    Device according to claim 1, characterized in that the fin (21) comprises a first and a second continuous vertical structure (21a, 21b) which are joined to each other at an angle.
    [4]
    Device according to claim 3, characterized in that the two continuous vertical structures (21a, 21b) have the shape of a circular arc.
    [5]
    Device according to one of the preceding claims, characterized in that the two continuous vertical structures (21a, 21b) are each parallel to each of the circular walls (14a, 14b).
    [6]
    Device according to one of the preceding claims, characterized in that the circular walls (14a, 14b) are mounted at one end on the first side wall (10) and at the other end on the first plate (13a, 13b).
    [7]
    Device according to one of the preceding claims, characterized in that the upper panel (19) is connected at its lower end to the fin (21).
    [8]
    Device according to one of the preceding claims, characterized in that the upper panel (19) and the lower panel (20) are parallel to each other.
    [9]
    Device according to one of the preceding claims, characterized in that the device (1) further comprises a separation plate (22) on which the filter (17) is mounted,
    [10]
    Device according to claim 9, characterized in that the fin (21) is mounted on the lower panel (20) and on the partition plate (22).
    [11]
    Device according to one of the preceding claims, characterized in that the lower panel (20) is a continuous structure along the depth of the first vessel (8).
    [12]
    Device according to one of the preceding claims, characterized in that the first and second liquid separation zone (12a, 12b) are relatively circular.
    [13]
    Device according to one of the preceding claims, characterized in that at least one circular wall (14a, 14b) has a length that is at least 50% of the length of the outer contour of the respective first plate (13a, 13b) .
    [14]
    Device according to one of the preceding claims, characterized in that the device (1) comprises a second vessel (24), which comprises a second bottom plate (25) and a second side wall (26), the first plate (13a, 13b) ) is mounted on the second side wall (26).
    [15]
    A method for separating a liquid from a gas stream in a liquid-injected compressor (4), the method comprising the steps of: providing a first separation means comprising a first and a second liquid separation zone (12a and 12b), wherein the first and second liquid separation zones (12a, 12b) each include a first plate (13a, 13b) on which a circular wall (14a, 14b) is mounted and a first and second fluid channel (15a, 15b) between each of the circular wall ( 14a, 14b) and a first side wall (10) is provided; providing a second separation means in each of the first and second liquid separation zones (12a, 12b), and providing at least one cyclone (16) therein; providing a third separation means comprising at least one filter (17), wherein the filter (17) is provided in fluid communication with one of the cyclones (16); providing a first vessel (8) comprising the first and second liquid separation zone (12a, 12b), the second separation means and the third separation means, wherein the first vessel (8) comprises a first side wall (10) comprising the inlet (2), a first bottom plate (9) and a lid (11) comprising an outlet (5) - providing a fin-like structure (21) for splitting the fluid flow from the inlet (2) through the first and second fluid channel (15a, 15b - guiding the fluid from the first and second liquid separation zone (12a, 12b) through the second separation means, collecting the liquid dripping from the fluid onto the first bottom plate (9) and further guiding the fluid through the third separation means before it is passed through the outlet (5), characterized in that the method further comprises the following steps: - providing an inlet channel (18) comprising an upper panel (19) and a lower panel (20) and the guide and the fluid flowing through the inlet channel (18) in a downward movement and further splitting it through a fin (21) into two flows through the first and second fluid channels (15a, 15b).
    [16]
    Method according to claim 15, characterized in that the fin (21) is mounted on the lower panel (20).
    [17]
    The method of claim 15 or 16, further comprising providing at least one hole on the first plate (13a, 13b) for mounting the at least one cyclone (16) therein.
    [18]
    The method of any one of claims 15 to 17, further comprising providing a second vessel (24) comprising a second bottom plate (25), a second side wall (26) and the first plate (13a, 13b) and collecting the liquid dripping from the at least one cyclone (16) onto the second bottom plate (25).
    [19]
    The method of any one of claims 15 to 18, further comprising guiding the fluid flowing out of the inlet (2) through the first and second fluid channels (15a, 15b) along at least 50% of the length of the outer contour of the respective first plate (13a, 13b).
    [20]
    The method of any one of claims 15 to 19, further comprising separating the second separation means from the third separation means by providing a separation plate (22) therebetween.
    [21]
    A device for separating liquid from a gas stream in a liquid-injected vacuum pump (104), the device (101) comprising a first bottom plate, a first side wall comprising an inlet (102) in fluid communication with an outlet (103) of the vacuum pump (104) and a lid comprising an outlet (105), the device (101) further comprising: - a first separation means comprising a first and a second liquid separation zone, the first and second liquid separation zone being in fluid communication with the inlet (102); wherein the first and second liquid separation zones each comprise a first plate on which a circular wall is mounted, a first and a second fluid channel being formed between each of the circular wall and the first side wall; - a second separation means provided in each of the first and second liquid separation zones, wherein the second separation means comprises at least one cyclone mounted therein; - a third separation means comprising at least one filter mounted therein, wherein the filter is in fluid communication with one of the cyclones and wherein the third separation means is in fluid communication with the outlet (105); - an inlet channel in fluid communication with the inlet (102), the inlet channel comprising a fin-like structure for dividing the gas flowing through the inlet (102) into two flows, characterized in that the device (101) further comprises the following: - the inlet channel comprising an upper panel and a lower panel, one end of which is adapted to be mounted on the first side wall, wherein at least the upper panel creates a slope, with the highest point on the first side wall and the lowest point at the opposite located end.
    类似技术:
    公开号 | 公开日 | 专利标题
    US8147575B2|2012-04-03|Multi-stage oil separation system including a cyclonic separation stage
    US7459001B2|2008-12-02|Vane diffuser
    US8906142B2|2014-12-09|Phase separation of a multiphase mixture
    RU172733U1|2017-07-21|GAS-LIQUID SEPARATOR
    US9157307B2|2015-10-13|Downhole gas separator
    BE1025205B1|2018-12-11|Device for separating liquid from a gas stream in a liquid-injected compressor and method thereof
    RU171614U1|2017-06-07|GAS-LIQUID SEPARATOR
    US20190099705A1|2019-04-04|Effluent processing apparatus for a vehicle air brake charging system
    US10583820B2|2020-03-10|Effluent processing apparatus and method for a vehicle air brake charging system
    RU2695207C2|2019-07-22|Phase separator using pressure differences
    US10105625B2|2018-10-23|Method for extending turndown in a gas-liquid separator
    US10543512B2|2020-01-28|Apparatus and method of separation with a pressure differential device
    CN108786341B|2021-03-19|Device for separating liquid from gas flow in liquid-injection compressor and method thereof
    RU2545332C1|2015-03-27|Multi-stage hydrodynamic water separating filter
    US10792604B2|2020-10-06|Horizontal coalescing filter
    BE1023276B1|2017-01-19|Device for separating liquid from a gas stream coming from a liquid-injected vacuum pump or compressor
    US20160375389A1|2016-12-29|Bulk Deliquidizer/Desander Coalescer
    RU2519418C1|2014-06-10|Gas-liquid separator
    KR20180117584A|2018-10-29|Reciprocating air compressor's oil recovery system
    KR20190021289A|2019-03-05|Reciprocating air compressor's oil recovery system
    RU2582314C1|2016-04-20|Gas-liquid separator
    RU2666443C1|2018-09-07|Separator for gas cleaning from impurities
    KR20180060448A|2018-06-07|Reciprocating air compressor's oil recovery system
    同族专利:
    公开号 | 公开日
    BR112019022182A2|2020-05-12|
    US11235269B2|2022-02-01|
    BE1025205A1|2018-12-04|
    RU2735684C1|2020-11-05|
    US20200070078A1|2020-03-05|
    EP3615173A1|2020-03-04|
    EP3615173B1|2021-09-01|
    CA3057001A1|2018-11-01|
    CN208757187U|2019-04-19|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3912469A|1974-09-11|1975-10-14|Lone Star Steel Co|Apparatus for the removal of contaminants from gas streams|
    US5053126A|1990-02-28|1991-10-01|Ingersoll-Rand Company|Apparatus for gas liquid separation|
    EP1915940A1|2005-08-19|2008-04-30|Suzhou Kingclean Floorcare Co., Ltd.|A dust removing appliance of a parallel type cleaner|
    CN201441861U|2009-02-16|2010-04-28|山富机械厂有限公司|Oil mist separator|
    WO2016172770A1|2015-04-30|2016-11-03|ATLAS COPCO AIRPOWER ,naamloze vennootschap|Device for separating liquid from a gas stream coming from a liquid injected vacuum pump or compressor|
    US1239456A|1914-01-26|1917-09-11|Huntley Mfg Company|Dust-collector.|
    US1708697A|1927-11-14|1929-04-09|Jensen Chris|Dust collector|
    BE489468A|1948-04-21|
    US2662610A|1950-08-04|1953-12-15|Oswald X Heinrich|Apparatus for centrifugal separation of suspended particles|
    DE135995C|1952-10-15|
    US2867290A|1953-03-16|1959-01-06|Western Precipitation Corp|Multiple element cyclonic separator|
    US2904130A|1956-10-24|1959-09-15|Western Precipitation Corp|Construction of multiple tube cyclone dust collector|
    US3543931A|1968-02-29|1970-12-01|Nichols Eng & Res Corp|Multiple cyclone assembly|
    US3853505A|1973-07-16|1974-12-10|Georgia Pacific Corp|Removal of haze-forming constituents from wood dryer effluent|
    SU636036A1|1977-01-04|1978-12-05|Ждановский металлургический институт|Inertia-type dust trap|
    US4315815A|1980-06-30|1982-02-16|Kerr-Mcgee Refining Corporation|Process for separating bituminous materials and recovering solvent|
    SU1438829A1|1986-06-10|1988-11-23|Сибирский государственный проектный и научно-исследовательский институт цветной металлургии|Arrangement for cleaning gases|
    US5221301A|1992-10-28|1993-06-22|Emtrol Corporation|Multi-stage cyclone separator system with intermediate manifold|
    US5788728A|1996-12-03|1998-08-04|Nordson Corporation|Powder coating booth with improved cyclone separator|
    US6238451B1|1999-01-08|2001-05-29|Fantom Technologies Inc.|Vacuum cleaner|
    DE19912271A1|1999-03-18|2000-09-28|Hengst Walter Gmbh & Co Kg|Oil separator for de-oiling crankcase ventilation gases of an internal combustion engine|
    US6576029B2|2001-06-13|2003-06-10|National Tank Company|System for separating an entrained liquid component from a gas stream|
    US6673135B2|2002-02-08|2004-01-06|National Tank Company|System and method of separating entrained immiscible liquid component of an inlet stream|
    KR100549990B1|2004-04-16|2006-02-08|삼성광주전자 주식회사|Dust collecting apparatus for vacuum cleaner|
    KR100645376B1|2005-03-29|2006-11-14|삼성광주전자 주식회사|Multi-cyclone dust collecting apparatus|
    AT494957T|2005-06-29|2011-01-15|Danieli Corus Technical Services Bv|CYCLONE SEPARATOR FOR HIGH FUEL GAS|
    CN101262806B|2005-08-17|2010-10-13|Lg电子株式会社|Dust collector for vacuum cleaner|
    CN101282674B|2005-08-17|2010-12-15|Lg电子株式会社|Dust-collecting device for vacuum cleaner|
    AT471687T|2005-08-17|2010-07-15|Lg Electronics Inc|VACUUM CLEANER FOR VACUUM CLEANERS|
    KR100706622B1|2006-05-03|2007-04-13|삼성광주전자 주식회사|A compact & dual cyclone separating apparatus of a vacuum cleaner|
    DE502007003698D1|2006-07-27|2010-06-24|Sulzer Chemtech Ag|Inlet device for a fluid fed tangentially into an apparatus|
    CN201123782Y|2007-04-03|2008-10-01|苏州金莱克家用电器有限公司|Dust removing device for dust aspirator|
    US7931719B2|2007-12-03|2011-04-26|National Tank Company|Revolution vortex tube gas/liquids separator|
    RU2380166C1|2008-08-19|2010-01-27|Леонид Анатольевич Ярыгин|Device for wet cleaning of gases|
    WO2014020837A1|2012-07-30|2014-02-06|Motohashi Takao|Gas-liquid separation device for air discharge means|
    CN105311905A|2014-08-05|2016-02-10|上海卓旋化工科技有限公司|Pulse-bag type filter|
    US9795898B2|2015-03-31|2017-10-24|Jci Cyclonics Ltd.|Cyclonic separator system|
    WO2017019628A1|2015-07-24|2017-02-02|Enverid Systems, Inc.|Apparatus, methods and systems for separating particles from air and fluids|
    法律状态:
    2018-12-19| FG| Patent granted|Effective date: 20181211 |
    优先权:
    申请号 | 申请日 | 专利标题
    US201762490830P| true| 2017-04-27|2017-04-27|
    US62490830|2017-04-27|BR112019022182-4A| BR112019022182A2|2017-04-27|2018-03-20|A DEVICE FOR SEPARATING LIQUID FROM A FLOW OF GAS INSIDE A COMPRESSOR INJECTED WITH LIQUID AND METHOD OF THE SAME|
    PCT/IB2018/051851| WO2018197967A1|2017-04-27|2018-03-20|A device for separating liquid from a gas stream within a liquid injected compressor and method thereof.|
    CA3057001A| CA3057001A1|2017-04-27|2018-03-20|A device for separating liquid from a gas stream within a liquid injected compressor and method thereof|
    RU2019138051A| RU2735684C1|2017-04-27|2018-03-20|Device for separation of liquid from gas flow in compressor with fluid injection and method therefor|
    US16/499,485| US11235269B2|2017-04-27|2018-03-20|Device for separating liquid from a gas stream within a liquid injected compressor and method thereof|
    EP18717126.9A| EP3615173B1|2017-04-27|2018-03-20|A device for separating liquid from a gas stream within a liquid injected compressor or vacuum pump and method thereof.|
    CN201810393214.8A| CN108786341B|2017-04-27|2018-04-27|Device for separating liquid from gas flow in liquid-injection compressor and method thereof|
    CN201820624083.5U| CN208757187U|2017-04-27|2018-04-27|For separating the device of liquid from the air-flow in liquid-spraying type compressor or vacuum pump|
    [返回顶部]