奥地利专利AT518986A4 heat exchangers

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专利摘要:
The invention relates to a heat exchanger (1) for heat exchange between a first fluid (F1) and a second fluid (F2), with at least a first row (R1) of tubular elements (2) and a second row (R2) of tubular elements (2). each for the passage of the first fluid (F1), wherein between the first and second row (R1, R2) of tubular elements (2) a flow channel (3) for the second fluid (F2) is formed with a collecting container (4) to the one end (ES) of the tubular elements (2) and with a header tank (5) at the other ends (EV) of the tubular elements (2), wherein the tubular elements (2) are substantially circular in cross-section, with guide elements (7) for conducting of the second fluid (F2) are provided along the flow passage (3) between the first and second rows (R1, R2) of tubular members (2) each having a plate member (8), releasable retaining means (12A) being provided adjacent pipe elements (2M, 2N) to each other connect, wherein spirally curved edges of wing parts (13A, 13B) as connecting elements (14A, 14B) are provided.
公开号:AT518986A4
申请号:T50911/2016
申请日:2016-10-07
公开日:2018-03-15
发明作者:Ing Thomas Euler-Rolle Dipl
申请人:Dipl Ing Thomas Euler Rolle；
IPC主号:

专利说明:

The invention relates to a heat exchanger, in particular oil-air cooler, for heat exchange between a first fluid and a second fluid, with at least a first row of pipe elements and a second row of pipe elements, each for the passage of the first fluid, between the first and second rows of A flow channel for the second fluid is formed with a collecting container at one end of the tubular elements and with a distribution container at the other ends of the pipe elements
Tube elements.
Heat exchangers of this type are known from the prior art. In this case, the most efficient transfer of heat from a first fluid to a second fluid with generally small dimensions of the heat exchanger is generally desired.
WO 2005/088219 A1 discloses an air / refrigerant heat exchanger, in particular for a motor vehicle air conditioning system, with a plurality of flat tubes which run parallel to one another and transport refrigerant and around which air flows. Flow channels for the air flow are formed between the facing walls of adjacent flat tubes. The flat tubes enclose inner channels which run parallel to one another and have a diameter of, for example, 0.6 mm and a thickness of the flat tubes of, for example, 1.2 mm. Elongated depressions and / or elevations are arranged in the walls of the flat tubes in such a way that longitudinal axes of the depressions and / or elevations run obliquely to a flow direction of the air flow and / or obliquely to a flow direction of the refrigerant flow. If several such beads-like features running parallel to one another are provided, which extend through the entire cross section of the flat tubes, the flat tubes are profiled in a wave-like manner on both sides. In this case, elongated depressions lie directly opposite, correspondingly dimensioned, elongated elevations.
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The disadvantage here is that the heat exchanger according to WO 2005/088219 Al is complex to manufacture because of the special shape of the flat tubes. In addition, the shape of the flat tubes is fixed and the heat exchanger is preferably designed for inner channels with a small diameter. In the case of inner channels with a larger diameter, the heat exchanger would have a correspondingly high weight.
It is an object of the invention to alleviate or eliminate at least individual disadvantages of the prior art. An object of the invention can therefore be to provide a heat exchanger as stated at the outset, which is simple and inexpensive to manufacture. Another object of the invention can be to manufacture the heat exchanger with the lowest possible weight, in particular also in the case of pipe elements with a comparatively larger diameter. Furthermore, it may be desirable to easily manufacture the heat exchanger in different sizes. Finally, an improved heat exchange between the first fluid and the second fluid can be aimed for.
For this purpose, the invention provides a heat exchanger as defined in claim 1. Advantageous embodiments and further developments are specified in the dependent claims.
According to the invention, it is provided that the tubular elements are essentially circular in cross section, with guide elements for guiding the second fluid along the flow channel between the first and second row of tubular elements, the guide elements each being located between the outer sides of two adjacent tubular elements of the first or second row of pipe elements, the guide elements each having a plate part, the wall thickness of which is less than the diameter of the pipe elements connected thereto. The
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Heat exchanger, which can be a liquid-air cooler, in particular an oil-air cooler, thus has at least two rows of tubular elements through which a first fluid, in particular a liquid, preferably oil, flows. In order to introduce the first fluid into the tubular elements, first ends of the tubular elements are connected to a distributor container, while the first fluid emerging from opposite second ends of the tubular elements is introduced into a collecting container at the second ends of the tubular elements. Between at least two adjacent rows or groups of tubular elements, i.e. A flow channel for the second fluid, preferably air, is formed between at least a first row or group and a second row or group of tubular elements. If the heat exchanger has more than two rows of tubular elements, it is advantageous if a flow channel for the second fluid is formed between all directly adjacent rows of tubular elements. For a simple and inexpensive manufacture of the heat exchanger, the tubular elements are essentially circular in cross section. In addition, tubular elements with a circular cross section favor the flow conditions in the adjacent flow channels. The tubular elements are thus essentially cylindrical. In order to guide the second fluid along the flow channel, which is provided between the first and second row of tube elements, guide elements are provided, which are located between the outer sides of two adjacent tube elements of the first and second row of
Extend pipe elements. The outside of the tubular element is formed by the outer surface of the cylindrical tubular element. In order to be able to design the heat exchanger with the lowest possible weight, the guide elements each have a plate part, the wall thickness of which is less than the diameter, in particular less than the outer diameter, of the pipe elements connected to it. For example, the respective plate part is a thin sheet with a thickness of 0.2 mm to 1 mm
4/44, while the inner diameter of the tubular elements is from 0.8 mm to 5 mm. The wall thickness of the tubular elements can be, for example, between 0.3 mm and 1 mm. Thus, in contrast to the design of known heat exchangers, such as that which is disclosed in WO 2005/088219 Al, the tube elements are not enclosed by walls of flat tubes of correspondingly thick construction. Instead, compared to the tubular elements, thin and therefore lightweight guide elements extend between adjacent tubular elements. For good heat transfer, the plate parts are preferably connected to the outer sides of the tube elements adjoining them essentially without a gap. The flow channel is delimited on the one hand by the tube elements and the guide elements of the first row of tube elements arranged in between and on the other side by the tube elements and the guide elements of the adjacent second row of tube elements which are respectively arranged in between.
According to a preferred embodiment of the invention, it can be provided that the tube elements of the first and second row of tube elements and the guide elements are arranged in such a way that the flow channel between the first and second row of tube elements has deflections with respect to a main direction of extent of the flow channel, in a plane in Has essentially perpendicular to the longitudinal axes of the tubular elements. The main direction of extension of the flow channel is the direction from an entry area of the second fluid into the flow channel, in particular from the center of the entry area between adjacent rows of pipe elements, to an exit area of the second fluid from the
Flow channel, in particular to the center of the outlet area between adjacent rows of pipe elements. The flow channel between adjacent rows of tubular elements has deflections from its main direction of extension. The displacements
5/44 run essentially in opposite directions
Directions, orthogonal to the main direction of extension, in a plane perpendicular to the longitudinal axes of the cylindrical tubular elements. The longitudinal axes of the tubular elements run in the flow direction of the first fluid. The deflections of the flow channel advantageously extend the path of the second fluid through the flow channel and thus the time period in which the second fluid with the adjacent rows of pipe elements, in particular the
Pipe elements and the guide elements, heat can be exchanged. The efficiency of the heat exchanger is thus increased by means of the deflections. Since the flow channel can have deflections, it should be pointed out that, within the scope of the invention, the row of tubular elements is not necessarily to be understood as a linear arrangement of the tubular elements. For example, the tubular elements can be arranged in rows along a multi-curved path.
The heat exchanger can be manufactured particularly simply and inexpensively if the deflections of the flow channel repeat at regular intervals along the main direction of extent of the flow channel. The deflections can thus be formed periodically along the main direction of extent of the flow channel. In this way, the
Heat exchangers or the rows of pipe elements are made from components with partially identical shapes. This makes it easier to manufacture the heat exchanger in different sizes. In this way, a particularly variable design can advantageously be created.
In an expedient embodiment it can be provided that the flow channel between the first and second row of tubular elements has an essentially undulating course in the plane substantially perpendicular to the longitudinal axes of the tubular elements. In particular, the undulating course can be
6/44 be sinusoidal. Doing so can be complete
Wave crests and wave troughs of the wave-shaped course each extend over several guide elements. The maximum deflection of the wave-shaped flow channel, for example the maximum amplitude of the sinusoidal profile, can be less than, equal to or greater than the distance between adjacent rows of
Be pipe elements.
A flow channel with a wave-shaped course can be produced particularly advantageously if the plate parts each have arc-shaped, in particular circular arc-shaped outer surfaces. To form a sinusoidal course of the flow channel, the arcuate curved plate parts can be curved in particular in the form of a section of a sine curve. A complete wave crest or a complete wave trough can extend between two adjacent tube elements of a row of tube elements, to which a complete wave trough or a complete wave crest connects to the next tube element. Alternatively, complete wave crests and wave troughs of the wave-shaped course can each extend over several curved plate parts of the guide elements.
In another expedient embodiment it can be provided that the flow channel between the first and second row of tubular elements is substantially zigzag-shaped in the plane substantially perpendicular to the longitudinal axes of the tubular elements. A complete period of the zigzag course can extend over two or more than two guide elements or plate parts. The maximum deflection of the zigzag-shaped flow channel can be less than, equal to or greater than the distance between adjacent rows of tubular elements.
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A zigzag-shaped flow channel can be particularly simple if each plate part has two flat outer surfaces, the main plane of the plate part being arranged at an angle different from 0 degrees to the main direction of extent of the flow channel. The main plane is to be understood as the plane in which one of the outer surfaces of the plate part and preferably also the one connected to it
Pipe element extends. When viewed in the direction of the longitudinal axes of the tubular elements, the plate parts are arranged at an angle other than 0 degrees to the main direction of extent of the flow channel. For the production of such a zigzag-shaped flow channel, the same shaped tubular elements and the same shaped, flat plate parts can be joined together.
For the improvement of the flow conditions in the
Flow channel can also be provided that the pipe elements of the first and second row of pipe elements in
Main direction of extension of the flow channel are arranged offset to each other. In this way, the tubular elements of a row of tubular elements are arranged, for example, opposite the guide elements of the adjacent row of tubular elements. The second fluid has to flow along part of the curved outer sides of the tubular elements, as a result of which the path of the second fluid along the flow channel and thus the time period for heat transfer are extended. The guide elements or their respective
Plate part can be flat or curved.
In order to further favor the heat exchange between the first and the second fluid, it can be provided that at least one guide element has at least one plate body protruding therefrom. The plate body, which projects into the flow channel, increases the area of the guide element provided for the heat exchange. The plate body is favorably in
8/44 an angle other than 90 degrees, especially in
Flow direction of the second fluid at an acute angle to the guide element or to the plate part arranged thereon. A plurality of guide elements of a row of tubular elements, for example each guide element, every second guide element or generally every nth guide element, preferably have at least one plate body projecting therefrom.
The heat exchange between the first and the second fluid can also be improved in that the collecting container and / or the distribution container is substantially rectangular in a virtual sectional plane substantially perpendicular to the longitudinal axes of the tubular elements, and the main direction of extension of the flow channel is 90 ° deviating angle, in particular at an angle between 30 ° and 60 °
Longitudinal direction of the collecting container and / or to the longitudinal direction of the distribution container. In particular, the main direction of extension of the flow channel can be at an angle between 40 ° and 50 °, for example at an angle of 45 °
Longitudinal direction of the collecting container and / or to the longitudinal direction of the distribution container. The resulting oblique arrangement of the flow channel in the heat exchanger extends the path of the second fluid through the flow channel. The collecting container and / or the distribution container do not necessarily have to be exactly rectangular in the sectional view. For example, the corners of the collecting container and / or the distributor container can be rounded or their long sides or broad sides can be curved. In any case, the collecting container and / or the distribution container have a longitudinal extension and a shorter one in comparison
Extension.
In an alternative embodiment it can be provided that
9/44 of the collecting container and / or the distribution container in a virtual section plane substantially perpendicular to the
Longitudinal axes of the tubular elements is substantially annular segment-shaped or annular, the
Main direction of extent of the flow channel at an angle deviating from 0 °, in particular at an angle between 30 ° and 60 °, to the radial direction of the collecting container and / or to
Radial direction of the distribution tank, which
Radial direction from the beginning or end of the flow channel. In particular, the main direction of extension of the flow channel can run at an angle between 40 ° and 50 °, for example at an angle of 45 ° to the radial direction of the collecting container and / or to the radial direction of the distributor container. The start of the flow channel corresponds to the entry area of the second fluid into the flow channel and the end of the flow channel corresponds to the exit area of the second fluid from the flow channel. Here too, the oblique arrangement of the flow channel in the heat exchanger extends the path of the second fluid through the flow channel.
In order to be able to assemble the heat exchanger from individual components as required, it is expedient if holding devices, preferably releasable holding devices, are provided around adjacent pipe elements of the first or second row of
To connect pipe elements with each other via the guide elements. Since individual pipe elements and guide elements can be connected to one another by means of the holding devices, the heat exchanger can be produced with a plurality of flow channels in a modular design. This is a significant advantage over heat exchangers with rigidly specified shapes and dimensions. By means of the holding devices, in particular the length of the flow channels in their main direction of extension, corresponding to the power requirement of the heat exchanger, by connecting a corresponding number of pipe elements and guide elements
10/44. If the holding devices are designed to be detachable, the length or the shape of the flow channel can be changed again after the flow channel has been produced for the first time.
If the holding devices are plug connections, adjacent pipe elements of the first or second row of
Pipe elements can be connected to one another particularly simply, quickly and without tools by plugging them together. For example, the plug connections are positive connections, in which a first part of the plug connection is inserted into a second part of the plug connection in the direction of the longitudinal axes of the tubular elements.
The flow channel can be formed in particular by individual components if two wing parts protrude from the outside of each tubular element, two wing parts on adjacent tubular elements of the first or second row of tubular elements together forming a guide element for the second fluid. The mutually facing edges of adjacent wing parts can touch one another in the assembled state of the flow channel. The wing parts are preferably formed in one piece with the tubular elements.
A particularly stable connection of the tubular elements via the wing parts can be achieved if each wing part has a connecting element of the holding device. In this embodiment, the connecting elements of the holding device are provided on the mutually facing end regions of two adjacent wing parts. The connecting elements can be bent, mutually facing edges of the wing parts, and can be designed to be locked together or to be pushed into one another in the direction of the longitudinal axes of the tubular elements.
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In order to be able to manufacture the guide elements in one piece and separately from the tube elements, it can be provided that the holding devices are arranged between the guide elements and the outer sides of the tube elements. In this embodiment, connecting elements are provided on the outer sides of the tubular elements, which are connected to corresponding connecting elements on the end regions of the guide elements facing the tubular elements. In this way, depending on requirements, differently shaped guide elements can be inserted between the tubular elements and connected to the tubular elements by means of the holding devices.
Regardless of whether the holding devices are spaced from the outer sides of the tubular elements or are provided between the guide elements and the outer sides of the tubular elements, the holding devices can each have a holding flange and a
Have mounting rail. In this embodiment, the one connecting element of the holding device is designed as a receiving rail and the other connecting element of the holding device is designed as a holding flange, which holding flange is inserted, for example inserted, into the receiving rail for the production of the connection. The receiving rail can have bent edges, for example, which at least partially encompass the retaining flange in the connected state. The
Retaining flange itself can be designed as a widened edge of the guide element.
For a reliable fastening of the pipe elements on the
Collecting container and / or distribution container, it is favorable if the pipe elements are connected to the collecting container via first adhesive connections and / or to the distribution container via second adhesive connections. By means of the adhesive connections, the pipe elements can be quickly fixed in the positions intended for them.
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The tubular elements can be particularly advantageous with the
Collecting container and / or the distribution container are connected if plug sleeves are provided between the pipe elements and the collecting container and / or between the pipe elements and the distribution container, the plug sleeves preferably each having a particularly conically widening section on the sides facing the pipe elements. The collecting container and / or the distribution container preferably have recesses for inserting the push-in sleeves. The insertion of the receptacles in the collecting or distribution container is simplified by the conically shaped section of the receptacles. The tapered section of the receptacles also facilitates the connection to the tubular elements.
To the pipe elements with the collecting container and / or the
To be able to simply glue the distribution container, it is expedient if the plug sleeves consist of an adhesive which can be melted by the action of heat. For the production of the connection of the tubular elements with the collecting container and / or the distribution container, the tubular element is thus inserted into the receptacle and the receptacle in recesses in the collecting container or in the distribution container. Then the receptacle is melted by the action of heat, for example with a suitable tool. A hot melt adhesive that can be melted by the action of heat can be used, for example, which, in the prior art, is applied in a hot state to a surface to be bonded and solidifies on cooling, thereby producing a firm adhesive bond. It is known to process such hot melt adhesives using hot glue guns. In the prior art, hotmelt adhesives are offered as granules, powder, film or in the form of rods and can therefore also be provided in a simple manner in the form of the plug sleeves mentioned above.
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The invention is explained in more detail below on the basis of preferred, non-restrictive exemplary embodiments with reference to the drawings. Show it:
1A shows an oblique view of a heat exchanger according to the invention with tube elements for a first fluid and guide elements arranged in between for a second fluid;
1B shows the heat exchanger from FIG. 1A in a view from the front;
Fig. IC is a sectional view through the heat exchanger of Fig. 1B along section line A-A;
FIG. 2 shows the heat exchanger from FIG. 1A in an exploded view;
3A to 3D a first embodiment of tubular elements with guide elements for the heat exchanger according to FIGS. 1A to IC and FIG. 2, in an oblique view (FIG. 3A), a view from above (FIG. 3B), a detailed view of a holding device between the pipe and the guide element in the connected state (FIG. 3C) and a view of the holding device in the unconnected state (FIG. 3D);
4A to 4D a further embodiment of tube elements and guide elements for the heat exchanger according to FIGS. 1A to IC and FIG. 2, in an oblique view (FIG. 4A), a view from above (FIG. 4B), a detailed view from above ( 4C) and a further detailed view (FIG. 4D);
4E shows an arrangement of rows of tubular elements in a rectangular collecting base plate of a collecting container, the main direction of extension of the flow channel being perpendicular to the longitudinal direction of extension of the collecting container;
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4F shows an alternative arrangement of rows of tubular elements in the rectangular collecting base plate of the collecting container, the
Main direction of extension of the flow channel obliquely to
The longitudinal direction of the collecting container extends;
4G shows a further arrangement of rows of tubular elements in a collecting base plate in the form of an annular segment of the collecting container, the main direction of extension of the flow channel being oblique to the radial direction of the collecting container;
5 shows a further arrangement of rows of tubular elements which, in this embodiment, are arranged offset with respect to one another in the main direction of extent of the flow channel;
6A shows a further arrangement of rows of tubular elements with plate bodies protruding from the guide elements, in a view from above;
6B is a detailed oblique view of a section of a row of tubular elements with plate bodies protruding from the guide elements;
7A to 7D a further embodiment of pipe elements and guide elements for the heat exchanger according to FIGS. 1A to IC and FIG.
in an oblique view (FIG. 7A), a detailed view from above (FIG. 7B), a detailed view of the holding device (FIG. 7C) and a detailed view of a tubular element (FIG. 7D);
8A to 8D a further embodiment of tube elements and guide elements for the heat exchanger according to FIGS. 1A to IC and FIG.
in an oblique view (FIG. 8A), a detailed view from above (FIG. 8B), a detailed view of the holding device (FIG. 8C) and
15/44 a detailed view of a tubular element (Fig. 8D);
9A to 9D a further embodiment of pipe elements and guide elements for the heat exchanger according to FIGS. 1A to IC and Fig.
in an oblique view (FIG. 9A), a detailed view from above (FIG. 9B), a detailed view of the holding device (FIG. 9C) and a detailed view of a tubular element (FIG. 9D); and
10A to IOC via adhesive connections, compressed sections and receptacles connected to a collecting container or a distribution container pipe elements of the heat exchanger according to Fig. 1A to IC and Fig. 2nd
1A shows a heat exchanger 1 in an oblique view from above, which can in particular be an oil-air cooler. The heat exchanger 1 is used for heat exchange between a first
Fluid Fl and a second fluid F2 and has at least a first
Row RI of pipe elements 2 and a second row R2 of
Pipe elements 2. The first fluid F1, for example oil, flows through the tube elements 2. For the heat exchange, a flow channel 3 for the second fluid F2, for example air, is formed between the first row RI and the second row R2 of tubular elements 2. The heat exchanger 1 can be used as a liquid-air cooler for cooling liquid, for example oil, as a first fluid F1, by means of the cooling air, as a second fluid F2, or as a liquid-air heater for heating air, as a second fluid F2, by means of the warming liquid, for example oil, as the first fluid F1. The heat exchanger 1 also has a collecting container 4 at one end ES
Pipe elements 2 and a distribution tank 5 at the other ends
EV of the tubular elements 2. The distributor tank 5 is connected at a connection point AZ (FIG. 2) to a feed pipe, not shown, through which the first fluid F1 is fed to the distributor tank 5, which feeds the first one
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Splits fluid F1 at the ends EV onto the tubular elements 2. At the other ends ES of the tubular elements 2, the first fluid F1 emerges again from the tubular elements 2 and is passed into the collecting container 4 connected to the ends ES. The collecting container 4 is connected to a discharge pipe (not shown) at a connection point AA (FIG. 2). The distribution container 5 has a distribution box 5A and a distribution base plate 5C accommodated therein. Accordingly, the collecting container 4 has a collecting box 4A and a collecting base plate 4C accommodated therein. If the first fluid F1 is a liquid, for example oil, a liquid or oil pump, not shown, can be provided. The second fluid F2, for example air, can be passed through the fan by means of a fan (not shown)
Flow channels 3 are conveyed. The heat exchanger 1 also has side parts 6A, 6B with through openings 6C for fastening the heat exchanger 1 to a carrier body (not shown). The tubular elements 2 are essentially circular in cross section and thus have a cylindrical shape. A cross-sectional view of a tubular element 2 is shown in FIG. 3C, for example. The cylindrical tubular elements 2 have a smooth, i.e. substantially recess-free or elevation-free outer surface 2A. Ribs 2V are preferably provided in the interior 21 of the cylindrical tube elements 2. In order to be able to direct the second fluid F2 along the flow channel 3 between the first row RI and the second row R2 of pipe elements 2, guide elements 7 are provided. The guide elements 7 each extend between the outer sides 2A of two adjacent tube elements 2M, 2N of the first row RI or second row R2 of tube elements 2. The rows RN, for example RI, R2, of tube elements 2 thus have the tube elements 2, between which the guide elements 7 extend. The guide elements 7 each have a plate part 8, the wall thickness 8W of which is less than the outer diameter 2D of the pipe elements 2 connected thereto, see for example FIG.
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3C, 3D, 4D. The flow channel 3 for the second fluid F2 is thus formed by means of the walls W, which consist of the outside 2A
Pipe elements 2 and the intermediate guide elements 7 of a first row RI of pipe elements 2 are formed and by means of the walls W, which from the outer sides 2A
Pipe elements 2 and the intermediate guide elements 7 of a second row R2 of pipe elements 2 are formed. The walls W can run parallel to each other.
Although reference is made in the description to a flow channel 3 for the second fluid F2, which is formed between the first row RI and the second row R2 of pipe elements 2, it should be noted that the heat exchanger 1 is of course more than just two rows RI, R2 of pipe elements 2 can have. For example, the heat exchanger 1 can have between 10 and 100, for example between 30 and 80, rows RN of pipe elements 2. A flow channel 3 is formed between two adjacent rows RI, R2 of tubular elements 2. A heat exchanger 1 with n rows RN of pipe elements 2 thus has n-1 flow channels 3. The features which relate to a flow channel 3 and a first row RI and a second row R2 of pipe elements 2 therefore also apply to any additional, preferably for all provided flow channels 3 and rows RN of pipe elements 2. At least one further row is preferred RX of tubular elements 2 is provided, which is designed in particular in accordance with the first row RI or second row R2 of tubular elements 2.
As can be seen in particular from FIGS. IC, 3A and 4A to 4G, the tube elements 2 of the first row RI and second row R2 of tube elements 2, or the tube elements 2 of adjacent rows RX, RX + 1 of tube elements 2, and the Guide elements 7 arranged in such a way that the flow channel 3 between the
18/44 first row RI and the second row R2 of pipe elements 2, or the flow channel 3 between adjacent rows RX, RX + 1 of pipe elements 2, deflections 9. The deflections 9 relate to a main direction of extent 3H of the flow channel 3, in a plane E essentially perpendicular to the longitudinal axes L of the tubular elements 2. In other words, the deflections 9 relate to an imaginary straight line of the flow channel 3. Preferably, several, in particular all flow channels 3 have the same deflections 9. In particular in FIGS. 4E to 4G it can be clearly seen that the deflections 9 of the flow channel 3, or the deflections 9 of several or all flow channels 3, repeat at regular intervals 10 along the main direction of extent 3H of the flow channel 3, or the flow channels 3.
3A and 3B show on the basis of a curved section of an exemplary row RI of tubular elements 2 that the flow channel 3 between the first row RI and one in FIG.
3A, 3B, not shown, the second row R2 of tubular elements 2, in the plane E substantially perpendicular to the longitudinal axes L of the tubular elements 2, can have an essentially undulating profile. To achieve the undulating course, the guide elements 7 or their plate parts 8 are curved in an arc, in particular in a circular arc, i.e. the guide elements 7 or plate parts 8 have arcuate, in particular arcuate, curved outer surfaces 8A.
4A to 4G show, partly based on a section of an exemplary row RI of pipe elements 2, that the flow channel 3 between the first row RI and a second row R2 of pipe elements 2 not shown in FIGS. 4A to 4D in the plane E in FIG Can be substantially zigzag-shaped substantially perpendicular to the longitudinal axes L of the tubular elements 2. To achieve the zigzag shape are the
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Guide elements 7 or the plate parts 8 are flat, i.e.
each guide element 7 or plate part 8 has two levels
Outer surfaces 8A. The main plane E8 of the plate part is at an angle α different from 0 degrees
Main direction of extent 3H of the flow channel 3 is arranged.
5 shows a section with four rows RI to R4 of tube elements 2 from a heat exchanger 1. In this example, the tube elements 2 of adjacent rows RI to R4 of tube elements 2 are arranged offset to one another in the main direction 3H of the flow channel 3. The pipe elements 2 of a row RX are arranged opposite the guide elements 7 or plate parts 8 of an adjacent row RX + 1.
6A and 6B it can be clearly seen that at least one guide element 7, preferably several or all guide elements 7, has / have at least one plate body 11 projecting therefrom. The plate body 11 projects into the
Flow channel 3 and thereby increases the area of the guide element 7. The plate body 11 is at an angle β different from 90 degrees, in particular in the flow direction S of the second fluid F2 at an acute angle β of, for example, between 30 and 60 degrees, to the guide element 7 or arranged to the plate part 8 on this.
As can be seen more clearly in particular in FIGS. 2, 4E and 6A, the collecting container 4 and its collecting base plate 4C and / or the distributor container 5 and its distributor base plate 5C can, if these are in a virtual sectional plane E substantially perpendicular to the Longitudinal axes L of the tubular elements 2 are considered to be substantially rectangular.
The explanations below relate in particular to embodiments of the collecting container 4, but the
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Distribution container 5 may be designed accordingly.
In the embodiment according to FIGS. 2 and 4E, the main extension direction 3H of the flow channel 3 extends at an angle γ of 90 ° to the longitudinal extension direction 4L of the collecting container 4 and / or to the longitudinal extension direction 5L of the distributor container 5. In contrast to this, in the embodiment according to FIG 4F shows the main direction of extension 3H of the flow channel 3 at an angle γ deviating from 90 °, in particular at an angle γ between 30 ° and 60 °, to the direction of longitudinal extension 4L of the collecting container 4 and / or to the direction of longitudinal extension 5L of the distributor container 5.
As can be seen from the example of FIG. 4G, the
Collecting container 4 and / or the distribution container 5, if these are viewed in a virtual sectional plane E essentially perpendicular to the longitudinal axes L of the tubular elements 2, in
Be designed substantially in the form of a circular ring segment. In an embodiment that is not shown, the collecting container 4 (or corresponding to the distribution container 5), viewed in the virtual sectional plane E, can have an annular design. Here, as shown in FIG. 4G, the
The main direction of extent 3H of the flow channel 3 extends at an angle δ deviating from 0 °, in particular at an angle δ between 30 ° and 60 °, to the radial direction 4R of the collecting container 4.
The radial direction 4R goes from the beginning 3A or end 3E of the
Flow channel 3 out.
According to the representations in FIGS. 4A to 4G, 5, 6A and 6B, the planar guide elements 7 and the planar plate parts 8 are fixed, in particular in one piece or in one piece, to the tubular elements 2. Even if this is not shown in the above-mentioned figures, it is also possible that
Holding devices 12, preferably releasable holding devices
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12A, are provided in order to connect adjacent pipe elements 2M, 2N of the first row RI or second row R2 of pipe elements 2 to one another via the flat guide elements 7.
3A to 3D, 7A to 7D, 8A to 8D and 9A to 9D show such holding devices 12, in particular releasable ones
Holding devices 12A, which are designed as plug connections 12B, in order to connect adjacent pipe elements 2M, 2N of the first row RI or second row R2 of pipe elements 2 to one another via the guide elements 7. 3A to 3D are curved, while according to FIGS. 7A to 7D, 8A to 8D and 9A to 9D the guide elements 7 or plate parts 8 are essentially flat.
According to the embodiments in FIGS. 7A to 7D, 8A to 8D and 9A to 9D, two wing parts 13A, 13B can protrude from the outside 2A of each tubular element 2, two wing parts 13B, 13C on adjacent tubular elements 2M, 2N of the first row RI and the second row R2 of pipe elements 2 together form a guide element 7 for the second fluid F2. The wing parts 13A, 13B project in substantially opposite directions from the tubular element 2, i.e. the wing parts 13A, 13B are arranged opposite one another on the tubular element 2. Each wing part 13A, 13B has a connecting element 14A, 14B of the holding device 12, 12A, 12B. The holding devices 12, 12A, 12B are in these
Embodiments are provided in the guide elements 7. In the example of FIGS. 7A to 7D, the connecting elements 14A, 14B are formed as edges of the wing parts 13A, 13B which are bent back or bent back by 180 °. In the example of FIGS. 9A to 9D, spirally curved edges of the wing parts 13A, 13B are shown as connecting elements 14A, 14B. In the embodiment according to FIGS. 8A to 8D, the holding devices 12, 12A, 12B each have one
Holding flange 15 and a mounting rail 16 as
22/44
Connecting elements 14A, 14B.
In the embodiment shown in FIGS. 3A to 3D, the detachable in particular are designed as plug connections
Holding devices 12, 12A, 12B are arranged between the guide elements 7 and the outer sides 2A of the tubular elements 2. Here too, the holding devices 12, 12A, 12B each have a holding flange 15 and a receiving rail 16 as connecting elements 14A, 14B.
10A that the tubular elements 2 can be connected to the collecting container 4 via first adhesive connections 17, 19. Corresponding second adhesive connections can be provided between the tubular elements 2 and the distribution container 5 (not shown). The adhesive connection 19 is used for rapid pre-assembly of the tubular elements 2 in the collecting container 4. In contrast, the adhesive connection 17 can harden more slowly. Alternatively, see FIG. 10B, the tubular elements 2 can be quickly preassembled in the collecting container 4 by an upsetting process. The upsetting process expands an end section 21 of the tubular elements 2 in the radial direction of the tubular elements 2.
IOC shows an exploded view of an embodiment in which receptacles 22 are provided between the tubular elements 2 and the collecting container 4. On the sides 22A facing the tubular elements 2, the receptacles 22 preferably each have a section 22B, which in particular widens conically. For the connection of the tubular elements 2 to the collecting container 4, the plug sleeves 22 are inserted into recesses 23 in the collecting container 4, whereupon the tubular elements 2 are inserted into the plug sleeves 22. The conical design of the receptacles 22 facilitates the insertion processes. If the receptacles 22 consist of an adhesive which can be melted by the action of heat, the tubular elements can be applied to the receptacles 22 by suitable exposure to heat
23/44 glued to the collecting container 4 in a simple manner and thus fixed therein.

权利要求:
Claims (20)
[1]
Claims:
1. Heat exchanger (1), in particular oil-air cooler, for
Heat exchange between a first fluid (Fl) and a second fluid (F2), with at least a first row (RI) of pipe elements (2) and a second row (R2) of pipe elements (2) each for the passage of the first fluid (Fl) , A flow channel (3) for the second fluid (F2) is formed between the first and second row (RI, R2) of pipe elements (2), with a collecting container (4) at one end (ES) of the pipe elements (2 ) and with a distributor container (5) at the other ends (EV) of the pipe elements (2), characterized in that the pipe elements (2) are essentially circular in cross section, guide elements (7) for guiding the second fluid (F2) along the flow channel (3) between the first and second row (RI, R2) of pipe elements (2), the guide elements (7) being located between the outer sides (2A) of two adjacent pipe elements (2M, 2N) of the first and second row (RI, R2) of tubular elements (2) n, the guide elements (7) each having a plate part (8) whose wall thickness (8W) is less than the diameter (2D) of the pipe elements (2) connected to it.
[2]
2. Heat exchanger (1) according to claim 1, characterized in that the pipe elements (2) of the first and second row (RI, R2) of pipe elements (2) and the guide elements (7) are arranged in relation to one another in such a way that the flow channel (3 ) between the first and second row (RI, R2) of pipe elements (2) deflections (9) with respect to a main direction of extent (3H) of the flow channel (3), in a plane (E) substantially perpendicular to the
Longitudinal axes (L) of the tubular elements (2).
[3]
3. Heat exchanger (1) according to claim 2, characterized in that the deflections (9) of the flow channel (3) along the
25/44
Repeat the main direction of extension (3H) of the flow channel (3) at regular intervals (10).
[4]
4. Heat exchanger (1) according to one of claims 1 to 3, characterized in that the flow channel (3) between the first and second row (RI, R2) of pipe elements (2) in the plane (E) substantially perpendicular to the Longitudinal axes (L) of the tubular elements (2) have an essentially undulating course.
[5]
5. Heat exchanger (1) according to claim 4, characterized in that the plate parts (8) each have an arcuate, in particular circular arcuate outer surfaces (8A).
[6]
6. Heat exchanger (1) according to one of claims 1 to 3, characterized in that the flow channel (3) between the first and second row (RI, R2) of pipe elements (2) in the plane (E) substantially perpendicular to the Longitudinal axes (L) of the tubular elements (2) is essentially zigzag.
[7]
7. Heat exchanger (1) according to claim 6, characterized in that each plate part (8) has two flat outer surfaces (8A), the main plane (E8) of the plate part (8) at an angle (α) different from 0 degrees to the main direction of extent (3H) of the flow channel (3) is arranged.
[8]
8. Heat exchanger (1) according to one of claims 1 to 7, characterized in that the tubular elements (2) of the first and second series (RI, R2) of tubular elements (2) in the main direction of extent (3H) of the flow channel (3) offset from one another are arranged.
[9]
9. Heat exchanger (1) according to one of claims 1 to 8, characterized in that at least one guide element (7) has at least one plate body (11) projecting therefrom.
26/44
[10]
10. Heat exchanger (1) according to one of claims 1 to 9, characterized in that the collecting container (4) and / or the distribution container (5) in a virtual sectional plane substantially perpendicular to the longitudinal axes (L) of the tubular elements (2) in Is substantially rectangular, the
Main direction of extension (3H) of the flow channel (3) at an angle (γ) deviating from 90 °, in particular at an angle (γ) between 30 ° and 60 °, to the longitudinal direction (4L) of the collecting container (4) and / or to the longitudinal direction ( 5L) of the distribution container (5).
[11]
11. Heat exchanger (1) according to any one of claims 1 to 9, characterized in that the collecting container (4) and / or the distribution container (5) in a virtual sectional plane substantially perpendicular to the longitudinal axes (L) of the tubular elements (2) in The main direction of extension (3H) of the flow channel (3) is substantially in the form of an annular segment or in an annular shape, the angle (δ) deviating from 0 °, in particular at an angle (δ) between 30 ° and 60 °, to the radial direction (4R) of the collecting container ( 4) and / or to the radial direction (5R) of the distributor container (5), which radial direction (4R, 5R) starts from the beginning (3A) or end (3E) of the flow channel (3).
[12]
12. Heat exchanger (1) according to one of claims 1 to 11, characterized in that holding devices (12), preferably releasable holding devices (12A), are provided to adjacent
To connect pipe elements (2M, 2N) of the first or second row (RI, R2) of pipe elements (2) to one another via the guide elements (7).
[13]
13. Heat exchanger (1) according to claim 12, characterized in that the holding devices (12, 12A) are plug connections (12B).
27/44
[14]
14. Heat exchanger (1) according to one of claims 1 to 13, characterized in that two wing parts (13A, 13B) protrude from the outside (2A) of each tubular element (2), two wing parts (13B, 13C) on adjacent tubular elements ( 2M, 2N) of the first or second row (RI, R2) of tube elements (2) together form a guide element (7) for the second fluid (F2).
[15]
15. Heat exchanger (1) according to claim 14, characterized in that each wing part (13A, 13B) has a connecting element (14A, 14B) of the holding device (12, 12A, 12B).
[16]
16. Heat exchanger (1) according to one of claims 1 to 13, characterized in that the holding devices (12, 12A, 12B) are arranged between the guide elements (7) and the outer sides (2A) of the tubular elements (2).
[17]
17. Heat exchanger (1) according to one of claims 12 to 16, characterized in that the holding devices (12, 12A, 12B) each have a holding flange (15) and a receiving rail (16).
[18]
18. Heat exchanger (1) according to one of claims 1 to 17, characterized in that the tubular elements (2) via first adhesive connections (17, 19) to the collecting container (4) and / or via second adhesive connections (18, 20) to the Distribution container (5) are connected.
[19]
19. Heat exchanger (1) according to one of claims 1 to 18, characterized in that plug sleeves (22) are provided between the tubular elements (2) and the collecting container (4) and / or between the tubular elements (2) and the distribution container (5) The plug sleeves (22) on the sides (22A) facing the tubular elements (2) preferably each have a particularly conically widening section (22B).
28/44
[20]
20. Heat exchanger (1) according to claim 19, characterized in that the plug sleeves (22) consist of an adhesive which can be melted by the action of heat.

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同族专利:

公开号 | 公开日

CN109791028A|2019-05-21|

AT518986B1|2018-03-15|

CN109791028B|2021-05-11|

WO2018064696A1|2018-04-12|

EP3523590A1|2019-08-14|

US11112182B2|2021-09-07|

US20200025450A1|2020-01-23|

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法律状态:

优先权:

申请号 | 申请日 | 专利标题

ATA50911/2016A|AT518986B1|2016-10-07|2016-10-07|heat exchangers|ATA50911/2016A| AT518986B1|2016-10-07|2016-10-07|heat exchangers|

CN201780061195.2A| CN109791028B|2016-10-07|2017-10-06|Heat exchanger|

US16/337,945| US11112182B2|2016-10-07|2017-10-06|Heat exchanger with adjustable guiding elements between tubes|

EP17784161.6A| EP3523590A1|2016-10-07|2017-10-06|Heat exchanger|

PCT/AT2017/060252| WO2018064696A1|2016-10-07|2017-10-06|Heat exchanger|

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