• 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:
    A mineral oil separator comprising a separation chamber, an outlet baffle (1) with an inlet (3) within the separation chamber and a float (4), the float (4) being lighter than water and heavier than the mineral oil to be separated so that the float (4) floats at the height of a water-mineral oil boundary layer in the deposition chamber and decreases with the lowering of the boundary layer in the deposition chamber, wherein the float (4) and the input (3) are formed so that the sinking float (4) from a certain Height of the boundary layer seals the entrance (3). The float (4) has a cut-off ball (5) and a cylinder (6), wherein the cylinder (6) is fixed with the base on the cut surface of the cut-off ball (5).
    公开号:CH711299A2
    申请号:CH00989/15
    申请日:2015-07-08
    公开日:2017-01-13
    发明作者:Macdonald David；Petit Agnès；Klug Alexander
    申请人:Creabeton Matériaux Sa；
    IPC主号:
    专利说明:

    Technical area
    The invention relates to mineral oil, in particular to the float in the outlet chicane.
    State of the art
    For use in parking lots, washing areas, garages, commercial enterprises, elevator shafts and boiler rooms, it is common to install mineral oil to separate contaminated water from mineral oils before it is fed back into the sewer. A mineral oil separator consists of a separating tank, an inlet baffle and an outlet baffle. The wastewater is slowed down by the inlet baffle at the inlet and at the same time distributed in the separation tank. A simple example of a mineral oil separator is shown in FIGS. 1 and 2. In order not to re-mix the light liquids collected on the surface of the collected in the separating tank light liquids such as mineral oil with the incoming contaminated water, the output of the inlet baffle is in the separating tank below the entrance of the inlet baffle. This optimally flows through the available deposition surface. The outflow baffle at the outlet prevents the escape of the separated oils. The entrance of the outlet chicane is deeper than its output and preferably also lower than the outlet of the inlet chicane. Since the light liquids ascend towards the water, there is thus only water with a very low mineral oil content at the level of the entrance of the outlet chicane. By the incoming contaminated water, the water level is increased in the separation vessel and said water with a very small proportion of mineral oil in the outlet chicane is pushed up and transported from the exit of the outlet chicane in the wastewater. The inlet and outlet chutes divide the mineral oil separator MA into three zones: an oil collecting chamber (V1), a purified water chamber (V2) and a sludge chamber (V3). In the separation room, the wastewater is separated into oil, water and solids due to the sufficiently long residence time. In the oil collection room, the floating oils are stored. In the sludge room, the sinking substances are stored in small quantities.
    Fig. 3 shows a more complex mineral oil separator of the prior art with an outlet baffle with an automatic closure, which closes the discharge chicane automatically before the amount of mineral oil in the separation vessel is so large that the collected mineral oil through the discharge baffle into the wastewater can guess. For this purpose, the entrance of the outlet chicane is arranged so that it is directed vertically upwards, that is, against the earth's gravity. For this purpose, the vertical tube of the outlet chicane is provided at the lower end with a generally U-shaped pipe section. A float S has a lower ball and an upper ball. The two balls are connected by a rod. The lower ball is hollow and with a weight material, e.g. Sand, filled. Thus, the total weight of the float S can be adjusted so that the float floats in the water but sinks in the oils to be separated. The upper ball is lighter than the lower ball, so that the float is always aligned vertically and does not jam when entering and exiting into the / from the entrance of the exhaust baffle and an optimal seal is achieved. As the amount of oil deposited in the separation vessel increases, the interface between water and oil decreases. Therefore, the float S sinks with the interface until the float S with the lower ball enters the entrance of the outlet chicane and closes this sealing. Thus, an automatic closure of the entrance of the exhaust chicane can be achieved before oil enters the sewer.
    Mineral oil are to be smaller and smaller with the same power. Therefore, the exhaust baffle must be installed in smaller and smaller volumes. Therefore, it would be desirable to have an exhaust baffle of lesser height and with smaller pipe diameters, i. Entrances, to realize. This is particularly the case for combined mineral oil and sludge separators, which use only one container separated by partitions into two or three chambers. However, the float S of the prior art has the disadvantage that it requires a large height and that the spherical shape for certain pipe diameter can not be reduced, otherwise the required float density can not be achieved with the weight of the lower ball.
    Presentation of the invention
    It is an object of the invention to develop a discharge chicanes with a closure mechanism for a mineral oil separator, which allows to realize the discharge chicanes with the smallest possible dimensions.
    According to the invention, this object is achieved by an outlet chicane for mineral oil according to the independent claim.
    In particular, the combination of the float of a truncated sphere and a cylinder allows for the sealing function to continue to use the spherical shape, which can correspond to any radius of the input, but on the other hand with the cylindrical shape on the cut ball within a minimum height the necessary Accommodate weight so that the float has a mean density that is smaller than that of the water and greater than that of light liquids such as oils. Thus, a well-functioning float can be realized in a minimal space. The spherical shape under the cylinder also has the advantage that the downwardly tapering spherical shape automatically threads itself into the entrance of the exhaust baffle even if the horizontal movement of the float is not exactly horizontal.
    Further advantageous embodiments are specified in the dependent claims.
    Preferably, the cylinder of the float is hollow and the weight of the float is filled by filling the hollow cylinder with a weight material, e.g. Sand, adjustable. Thus, the float can be adjusted to the density of different light liquids, or set the specific height of the water-mineral oil boundary layer from which the float is to close the entrance of the exhaust chicane. By shifting the weight material from the ball into the cylinder, more weight material volume can be accommodated at the same height, and thus, in comparison to the prior art, even for very small outlet baffle inputs, well functioning floats can be realized.
    Brief description of the figures
    The invention will be explained in more detail with reference to the accompanying figures, in which show<Tb> FIG. 1 <SEP> is a side sectional view of a prior art mineral oil separator.<Tb> FIG. 2 <SEP> is a horizontal sectional view of the mineral oil separator of FIG. 1.<Tb> FIG. Fig. 3 <SEP> is a side sectional view of a more complex mineral oil separator of the prior art.<Tb> FIG. 4 is a side sectional view of one embodiment of an exhaust chicane of a mineral oil separator according to the invention.
    Ways to carry out the invention
    Fig. 4 shows an embodiment of an inventive Auslassschikane with an automatic closure.
    The Auslassschikane 1 is as already described in connection with FIG. 3 so designed that the output 2 is disposed above the input 3. The outlet baffle forms a basically U-shaped tube at its lower end, so that the entrance is open vertically upwards.
    A float 4 is disposed above the entrance 3. The float 4 is lighter than water but heavier than the deposited mineral oil. Thus, the float with mineral oil-water interface in the deposition chamber drops as the amount of mineral oil in the deposition chamber increases. The float 4 has a cut-off ball 5 and a cylinder 6.
    The cut ball 5 is a ball from which at least one ball segment has been cut off. The cut surface is straight-lined. The cut-off ball 5 is fastened with the cut surface on the base of the cylinder 6. Here this is achieved, for example, by a screw fastened by the cut-off ball 5 and in the cylinder 6. However, other types of attachment are possible. Preferably, the ball is cut again parallel to the first cut surface on the opposite side of the ball center, so that the height of the float 4 is further reduced.
    The cylinder 6 is preferably a round cylinder (with a circular base), but alternative cylinder shapes are also possible. The cylinder 6 is preferably hollow and filled with a weight material (not shown) such that the mean density of the float 4 is between that of water and that of the mineral oil (s) to be separated. Preferably, the average density of the cut ball 5 is higher than that of the weight material used. This ensures that the float 4 does not tend to tip over. This could be realized, for example, by a cut-off ball 5 made of metal, if the weight material is lighter than metal. Alternatively, however, the average density of the cut ball 5 may be equal to or less than that of the weight material used and / or the average density of the cylinder 6. In this case, the float 4 is preferably prevented from guiding the float 4 before turning , This has the advantage that the float 4 can be produced in a particularly simple and cost-effective manner. The cut ball may e.g. Made of solid plastic. The cylinder 6, or the cylinder wall 6 can also be made of plastic. Alternatively, it is also possible to hollow form the cut ball and connect to the cavity of the cylinder. This would further increase the available volume of the float for the weight material.
    If the float 4 now sinks to a certain height with the water / mineral oil boundary layer, then the cut ball 5 enters the inlet 3 of the exhaust baffle 1. Due to the downwardly tapering spherical shape of the float 4 centered in the entrance 3 automatically. In the embodiment shown, a seal 9 on the base of the cylinder 6, on which the cut ball 5 is fixed, is arranged, which creates a sealing connection when resting the cylinder 4 on the edge or flange of the input 3. Alternatively, the seal can also be achieved by one or more lip seals arranged on the inside of the inlet opening, which seal the gap between the side walls of the inlet 3 and the ball 5.
    Preferably, above the entrance 3, a guide for the float 4 is arranged, which leaves the float 4 in the vertical direction free, but restricts their range of motion in the horizontal direction. The guide is realized here by a cylinder tube 7. Preferably, enough clearance is left between the inner wall of the cylinder tube 7 and the outer wall of the cylinder 6, so that the float can be easily removed from the guide. Due to the lower taper of the cut ball 5, this automatically threads into the entrance 3, even if the float 4 is not centered in the cylinder tube 7. The cylinder tube 7 has at the bottom one or more inlet openings 8 to the inlet of the effluent water. The inlet opening (s) 8 may be arranged on the cylinder tube end and / or in the lower region of the lateral cylinder tube wall. In this embodiment, the cylinder tube 7 is formed above the inlet openings 8 so that there is no fluid exchange from the inside of the cylinder tube 7 with the rest of the deposition chamber. In other words, there are no more inlet openings 8 above a certain inlet level. This will not contaminate the float with mineral oil until the mineral oil-water interface has dropped to the specified inlet level. From this moment, the mineral oil-water interface does not decrease further until the cylinder tube 7 has not filled from the liquid surface to the inlet opening 8 or the particular inlet height. Thus, the float S begins to sink only when the mineral oil-water interface has reached the specified inlet level. This solution has the advantage that the float only sinks when the mineral oil-water interface reaches the specified inlet level. As a result, it can be prevented that the float 4 is mistakenly sucked into the inlet 3 by the outflow suction of the exhaust baffle before reaching a certain mineral oil-water boundary layer depth and closes the entrance 3 too early.
    Preferably, the exhaust baffle 1 and / or the cylinder 7 are made of a plastic, e.g. PVC, made.
    An exhaust chicane as described above may be used, for example, in a prior art mineral oil separator of FIG. 3. Particularly advantageous, however, is the exhaust chicane described above for small mineral oil separators. Smaller dimensions are usually achieved with combined sludge and mineral oil separators.
    Such a combined sludge and mineral oil separator not shown in the figures will be briefly described here. A cylindrical concrete container is divided into an inlet chamber, a sludge separation chamber and a mineral oil separation chamber. The cylindrical concrete container has a first wall which extends in a straight line from the inner lateral surface of the cylindrical concrete container to the opposite inner lateral surface, preferably this first wall passes through the cylinder center axis. On one side of the first wall, the Schlammabscheidekammer is formed together with the inner circumferential surface. On the other side of the first wall is a second wall which extends from the other side of the first wall to the inner lateral surface of the cylindrical concrete container, preferably at right angles to the first wall and / or from the cylinder center axis. On one side of the second wall, the inlet chamber and on the other side of the second wall, the deposition chamber is formed. A first opening at a central height in the first wall provides a passage between the inlet chamber and the mud separation chamber. The inlet chamber has the function of decelerating the incoming water-sludge-oil emulsion and transport with as laminar as possible (eddy-free) flow in the Schlammabscheidekammer. For this purpose, the first opening in the first wall along the height of the first wall is arranged approximately centrally or between the center and the bottom, so that the emulsion stream in the Schlammabscheidekammer laminar runs approximately centrally and thus can deposit down sludge and light liquids upwards. It has been found that the optimal position for the flow of the opening along the inner circumferential surface of the cylindrical container. A second opening is realized approximately at the level of the exit of the outlet baffle in the first wall between the sludge separation chamber and the deposition chamber. The second opening extends from a first height, which is greater than the height of the entrance of the exhaust chicane but smaller than the height of the outlet of the Auslassschikane, to a second level, which is above the usual liquid level. The second height could correspond to the height of the ceiling of the container. For a particularly smooth and laminar inlet of the oil-water emulsion in the Mineralölabscheidekammer, the opening does not extend over the entire first wall, but only between the second wall and a certain distance to the inner circumferential surface of the cylindrical container. Such a combined mineral oil and sludge separator allows through the three chambers and the discharge chicanes described below a particularly efficient water purification in a very small space.
    权利要求:
    Claims (17)
    [1]
    A mineral oil separator comprising a separation chamber, an outlet baffle having an entrance inside the separation chamber, and a float, the float having a smaller average density than water and a greater average density than the mineral oil to be separated so that the float is at the level of a water Mineral oil boundary layer floats in the deposition chamber and sinks with the lowering of the boundary layer in the deposition chamber, the float and the input are formed so that the sinking float from a certain height of the boundary layer seals the entrance; characterized in thatthe float has a cut ball and a cylinder, the cylinder having the base fixed to the cut surface of the cut ball.
    [2]
    2. mineral oil separator according to one of the preceding claims, wherein the cylinder has a circular base.
    [3]
    3. Mineralölabscheider according to the previous claim, wherein the radius of the circular base surface is greater than the radius of the circular sectional area, preferably as the radius of the cut ball.
    [4]
    4. mineral oil separator according to one of the preceding claims, wherein the cylinder is hollow, is filled with a weight material and is sealingly closed.
    [5]
    5. mineral oil separator according to the previous claim, wherein the cut ball is solid.
    [6]
    6. mineral oil separator according to claim 4 or 5, wherein the cut ball has a lower average density than the cylinder with the weight material.
    [7]
    7. mineral oil separator according to one of the preceding claims, wherein the cut ball widened in the orthogonal direction to the cutting surface and tapers again after exceeding the center of the ball.
    [8]
    8. mineral oil separator according to one of the preceding claims, wherein the cut ball is cut parallel to the cut surface and on the other side of the center of the ball once more.
    [9]
    A mineral oil separator according to any one of the preceding claims, wherein the inlet of the exhaust baffle is formed so that the cut ball enters the entrance of the exhaust baffle at the determined height of the boundary layer.
    [10]
    10. Mineralölabscheider according to the previous claim, wherein the input forms a hollow cylinder with circumferential lip seals, which are formed for sealingly closing the hollow cylinder by the cut ball.
    [11]
    11. Mineral oil separator according to one of the preceding claims, comprising a vertically arranged guide over the entrance of the outlet chicane, wherein the guide keeps the float in the horizontal position in the correct position.
    [12]
    12. Mineralölabscheider according to the previous claim, wherein there is a game between the leadership and the float.
    [13]
    13. Mineral oil separator according to claim 11 or 12, wherein the guide is a hollow cylinder having on the lower side of the lateral surface inlet openings for water and between the liquid surface and a certain height of the hollow cylinder has no inlet openings.
    [14]
    14. The mineral oil separator according to claim 1, wherein the mineral oil separator comprises a cylindrical concrete container subdivided into an inlet chamber, a sludge separation chamber and the separation chamber, wherein the sludge separation chamber is configured to deposit sludge and make a mineral oil preseparation, wherein the separation chamber is configured to make a main oil deposit and remove the water separated from sludge and mineral oil from the exhaust baffle from the mineral oil separator.
    [15]
    15. Mineralölabscheider according to the previous claim, wherein the cylindrical concrete container having a first wall which extends in a straight line from the inner circumferential surface of the cylindrical concrete container to the opposite inner lateral surface and on the one side together with the inner lateral surface of the Schlammabscheidekammer, wherein a second wall extends from the other side of the first wall to the inner circumferential surface of the cylindrical concrete container and on one side of the inlet chamber and on the other side forms the deposition chamber, which is divided into an inlet chamber, a Schlammabscheidekammer and the deposition chamber.
    [16]
    16. A mineral oil separator according to the preceding claim, wherein a first opening at a central height in the first wall realizes a passage between the inlet chamber and the Schlammabscheidekammer and realizes a second opening at the level of the outlet of the Auslassschikane in the first wall between the Schlammabscheidekammer and the deposition chamber.
    [17]
    17. Mineral oil separator according to the preceding claim, wherein the first opening in the first wall is arranged on the inner lateral surface of the cylindrical concrete container and the second opening in the first wall is arranged on the second wall.
    类似技术:
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    同族专利:
    公开号 | 公开日
    CH711299B1|2019-07-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH00989/15A|CH711299B1|2015-07-08|2015-07-08|Mineral oil separator.|CH00989/15A| CH711299B1|2015-07-08|2015-07-08|Mineral oil separator.|
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