Plate-type heat-exchanger

FIELD: heating.

SUBSTANCE: invention relates to heat engineering, namely, to plate-type heat-exchangers. The heat-exchanger consists of a core enclosed in a shell with upper and lower walls and a pair of opposite side walls. The heat-exchanger housing contains upper plate being adjacent to the upper wall and lower plate being adjacent to the lower wall and a pair of side plates adjoining each of side walls. In addition, the upper plate is attached to the lower plate and side plates are interconnected. So the housing plates are interconnected by means of threaded fastenings and include spaced pins. Besides, the side plate pins are placed between the upper and lower plates pins.

EFFECT: reduction of heat-exchanger production and assembling costs due to support housing strengthening and using less strong and less expensive shell.

19 cl, 6 dwg

 

The technical field

The present invention relates generally to heat exchangers and, more precisely, to plate heat exchangers.

Prior art

At least some conventional heat exchangers can be classified into two categories: tubular heat exchangers and plate heat exchangers. Traditional plate heat exchangers are manufactured by blending a variety of plates having such a configuration that the two fluids, one of which is relatively hot and the other is relatively cold, can pass between alternate channels, restricted plates.

Plate heat exchangers can be divided into two categories, namely, heat exchangers, sealed with gaskets and welded heat exchangers. Heat exchangers, sealed with gaskets, can provide access to the plates for cleaning, lower thermal stress and the cost per unit area. However, the use of gaskets imposes some limitations with regard to temperature, pressure and compatibility with your liquids. One of the problems encountered in existing welded heat-exchange units, is the existence of large thermal stresses that can lead to shorter equipment life. Large proizvodstvennaya separation is relatively hot and relatively cold fluid using traditional welding operations represent another potential drawback.

Brief description of the invention

The heat exchanger may include a housing and a core with a shell. The shell may have an upper wall, a lower wall and a pair of opposed side walls connecting the top and bottom walls for the formation of at least part of the fence, in which may be placed in the liquid. The housing may have a top plate adjacent to the top wall, the bottom plate adjacent to the bottom wall, and a pair of side plates, each of which is bordered on one of the side walls. The top plate can be connected with the lower plate, and side plates can be connected to each other to maintain the top wall, bottom wall and side walls of the shell. Support provided by the body, can, at least in some applications, to allow the use of less durable and less expensive shell.

In one embodiment, preferred at the present time, the core of the heat exchanger includes top and bottom walls and a pair of side walls connecting the top and bottom walls, and the housing surrounds at least a section of each of the upper and lower walls and side walls. The casing may consist of a number of plates connected to each other with the possibility of separation to ensure access to the core if desired. This embodiment allows and shall prepare the wall by flame cutting instead of the traditional mechanical processing. Of course, there can be used other execution, modification and/or replacement in accordance with the desired characteristics for a particular application.

Brief description of drawings

These and other objectives, features and advantages of the present invention will become apparent after the following detailed descriptions of preferred options accomplishments and best version of the attached claims and accompanying drawings, in which:

1 shows a perspective view of one preferred in the present variant implementation of the heat exchanger;

figure 2 shows a top view of the heat exchanger of figure 1;

figure 3 shows a side view of the heat exchanger of figure 1;

4 shows an end view of the heat exchanger;

figure 5 shows a perspective view of the core welded plate heat exchanger, which can be used in the Assembly shown in figure 1; and

figure 6 shows in perspective the local neckline core figure 5, showing the area of the plates in the inner space of the core.

A detailed description of the preferred embodiments

Referring to the drawings more in detail, figures 1 to 4 shows one variant of implementation of the heat exchanger 10 includes an external support body 12 and the inner core 14. The heat exchanger 10 is shown as the plate is loebmann, rectangular core 14, although other shapes and configurations. The purpose of the drawings and this description is to show illustrative embodiments of the invention and not to limit in any way the construction, location or method by which the invention is implemented.

As best shown in Figure 5, the core 14 comprises an outer shell 16, consisting of a main intake manifold 18, a main exhaust manifold 20, an auxiliary intake manifold 22, which forms the site of one of the side wall 24 of the shell 16 or fully this wall, additional exhaust manifold 26, which forms the plot of the other side wall 28 of the shell or fully this wall, the upper wall 30 and lower wall 32. The reservoirs 18, 20, 22, 26 and the walls 30, 32 are connected to the fence Assembly of the plates 31, part of which is shown in Fig.6. The reservoirs 18, 20, 22, 26 and the walls 30, 32 can be welded to each other to form at least essentially complete fencing. Additional intake and exhaust manifolds 22 and 26 and the walls 30, 32 can be an essentially flat plate, providing the shell 16 is essentially in the form of a box or a rectangular parallelepiped.

As best shown in Fig.6, the internal device is the creation and design of the core 14, including the Assembly of the plates 31 may be essentially the same as described in U.S. Patent No. 6516874, the description of which is incorporated fully herein by reference. Usually the inside of the shell 16 are lots of tapes, each of which is denoted by the reference position 34, which form part of the Assembly 31 of the plate pack. Each cassette 34 is composed of two rectangular heat transfer plates 36 and 36A, the Central section of the housing each of which is equipped with a number of parallel and inclined bumps or indentations. When forming cartridge 34 a of the heat transfer plates 36, 36A is rotated 180 degrees and flipped to one of the plates superimposed on top of the other. As can be seen in Fig.6, this forces each of the corrugations of the heat transfer plates 36, 36A to cross each other with a constant angle and to provide a number of parallel directed at an angle of external ridges 38 and inner ridges 40 for each of the heat transfer plates 36, 36A.

As can be seen in Figure 5 and 6, the cassette 34 inside the core of the heat exchanger 10 determine the main channels 42 for the flow of primary fluid and secondary channels 44 for the flow of additional fluid. The primary fluid enters the heat exchanger 10 through the main inlet pipe 45, which is rigidly connected to the intake manifold 18 of the arcuate shape. The main liquid goes black the C main discharge port 46, which is rigidly connected to the exhaust manifold 20 of the arcuate shape. Accordingly, the principal liquid, a part of the heat exchanger 10 through the main inlet pipe 45, passes through the main channels 42 and exits the heat exchanger 10 through the main discharge nozzle 46. Additional fluid enters the heat exchanger 10 via the auxiliary inlet connection 47, passes through additional channels 44 and out through the additional outlet nozzle 48. It is obvious that the inlet pipe 47 and the outlet 48 are rigidly connected to an auxiliary intake manifold 22 and an extra exhaust manifold 26, respectively.

As shown in figures 1 to 4, the support body 12 includes opposite upper and lower plates 52, 54 and a pair of opposed side plates 56, 58, all of which are located near the outer surface of the shell 16 of the core 14. Plate 52-58 preferably connected to each other and are hard, so that the supporting body 12 is rigid and resists deformation in the Assembly and can prevent improper expansion, at least sections of the shell 16. The housing 12 preferably supports at least the area of the three sides of the shell 16 and preferably a substantial area (for example, more than half of the surface area) three or more sides of the shell 16. This allows yet make the shell 16 of the core of a more subtle or less durable material. In at least some embodiments, this may reduce the cost of Assembly of the heat exchanger, as, for example, the material of the shell which is in contact with the liquid, as a rule, is a relatively expensive material such as stainless steel, and may need less of this material. The supporting body 12, on the other hand, is not in contact with the fluid and can be made of less expensive carbon steel. Additionally can be reduced machining and welding, and the base plate 52-58 can be obtained by flame cutting or other means) and can be relatively unprocessed, thereby further reducing the cost of manufacture and Assembly of heat exchanger 10.

A pair of opposite upper and lower plates 52, 54 and a pair of opposed side plates 56, 58 can be connected to each other for the formation of at least essentially complete fencing that hosts the core 14. In one preferred in the present embodiment, the multiple connection devices 60 are used for detachable connection of adjacent plates to each other so that the housing 12 can be disassembled and extract the core 14 for repair or replacement on a new core. In the shown embodiment, the connecting device 60 includes the t fingers, spaced along the plate 52-58, and the connectors 64, which are connected to each other, the fingers of adjacent plates. Because of the relatively large number of fingers and connectors in this embodiment shown in the drawings, not all of these parts are marked on the drawings. Instead, to facilitate review and understanding of the drawings in the drawings, given only an exemplary number of such parts.

More specifically, as best shown in Figures 1 to 3, the upper and lower plates 52, 54 may be of identical design. Plates 52, 54 may be essentially flat, with the fingers 66 are posted and pass outward from opposite sides of each of the plates 52, 54. The fingers 66 on one side of the plates extend away from the fingers 66 on the other side of this plate, and the plates 52, 54 can preferably be located so that the fingers 66 on the upper plate 52 are aligned with the fingers 66 on the bottom plate 54. Each finger 66 preferably has at least one through hole 68. Apertures 68 aligned in the fingers 66 of the upper and lower plates 52, 54 are aligned to pass through connector 64, so that the aligned fingers 66 can be connected to each other. As shown, the connector 64 may include a rod 70 having ends 72 are threaded, and a nut 74 can be tightened on each end 72 of the rod 70.

Side plates 56, 58 may be identical and so doctitle design such upper and lower plates 52, 54, but are located near the side walls 24, 28 of the core 14. Side plates 56, 58 include the fingers 76, passing out, and the fingers 76 on one side of the plate 56 is aligned with the fingers 76 on the other side of the plate 58. The fingers 76 of the side plates 56, 58 are also preferably include at least one through hole 78, and the holes 78 in the fingers 76 of one of the side plates 56 are aligned with the holes 78 in the respective fingers 76 of the other side plate 58 to provide a connection of the fingers 76 of the side plates 56, 58 to each other. The fingers 76 of the side plates 56, 58 preferably are placed in the gaps between adjacent fingers 66 of the upper and lower plates 52, 54 and inserted between them. The fingers 76 of the side plates 56, 58 may be held at right angles to the fingers 66 of the upper and lower plates 52, 54. The rods 70 can pass through the holes 78 are aligned fingers 76 of the side plates 56, 58, and a nut 74 is preferably tightened on each end 72 of the rod 70.

Thus, the connectors 64 clamp the aligned fingers 66 of the upper and lower plates 52, 54 to each other against the adjacent walls or surfaces of the core. Similarly, the connectors 64 clamp the aligned fingers 76 of the side plates 56, 58 to each other against the adjacent walls of the core. In one embodiment, preferable on toadie time side plates 56, 58 do not touch the upper and lower plates 52, 54. All the boundary between the two plates may be provided with a clearance in a quarter of an inch so that the clamping force applied to the shell and not to the adjacent panels. As an alternative example, the plates 52, 54, 56 and 58 can be hooked to each other and positioned end-to-end with the core to prevent unwanted expansion of the core or the occurrence of stress.

So all plates 52-58 are connected to each other and can be separated by removing the nuts 74 to provide access to the core 14. The rods 70, connecting with each other, the side plates 56, 58 can be done in parallel upper and lower plates 52, 54 and beyond. The rods 70, connecting with each other of the upper and lower plates 52, 54 may be parallel to the side plates 56, 58 and beyond. The ends 80, 82 of the housing 12 can be opened to allow passage through one or more inlet pipes 45 and outlet pipes 46 for connection with suitable pipes or similar items. Otherwise, one or all of the ends 80, 82 may be blocked and supported by individual plates or sections of the top, bottom or side plates, which are near the ends. Therefore, the supporting body 12 in the shown embodiment provides gestco the support for the four sides of the shell 14. Support can be installed to a greater or lesser number of sides depending on the requirements for a particular application, and, for example, through one or more plates of the support body can be made holes for the inlet and outlet pipes, or other devices if necessary.

The anchor body 12 can be placed on one or more brackets 90 to facilitate the joining of the heat exchanger 10 to another structure and its disengagement from. The brackets 90 may include passing out of the leg 92, and preferably spaced along the length of the heat exchanger 10.

The above description of the individual variants of the invention is only explanatory and, therefore, their changes, modifications and/or replacement should not be considered as departing from the essence and scope of the invention. As a non-limiting example, despite the fact that the supporting body 12, shown and described in an exemplary embodiment, can be disassembled and removed from the core 14, the support body 12 may be welded or otherwise more or less permanently assembled, providing limited access to the core 14, or not providing access. Additionally, although shown and described, the housing 12 includes a metal plate, the area of the support housing 12 or the entire bearing housing can be made the C other materials in accordance with the desires for a particular application. Installation or Assembly according to the present invention may have any one of the foregoing features and/or advantages, to have some or all of them. What options, preferred at the present time, include the specific grounds mentioned herein above, should not mean that all the variants of the present invention must have such features.

1. A heat exchanger containing a core comprising a shell having many sides, and at least one channel for fluid, which circulates the liquid; a housing surrounding at least a section of each of the at least three sides of the shell remote from them, to maintain at least three sides of the shell against the pressure of the fluid therein, the housing includes a pair of opposing plates, each of which includes a multitude of fingers, with the fingers of one plate of a pair of opposite plates aligned and connected with the fingers of the other plate of the pair of opposite plate.

2. The heat exchanger of claim 1, wherein the housing includes two opposing pairs of plates, the fingers of the plates in one of the opposite pairs are connected to each other, and the fingers of the plates in the other of the opposite pairs are connected to each other.

3. The heat exchanger according to claim 2, in which the plates of one of the opposite pairs are connected to each other and engage with other plates of opposite pairs, and plates of opposite pairs are connected to each other and engage with the plates of one of the opposite pairs.

4. The heat exchanger according to claim 2, in which at least one of the fingers of the plate in one of the opposite pairs is located between the two fingers of the plate in the other of the opposite pairs.

5. The heat exchanger according to claim 4, in which a multitude of fingers of each plate are located between adjacent fingers of the adjacent plate.

6. The heat exchanger according to claim 1, in which each of the plates comprises at least. one hole, through which passes a connector for connecting the plates to each other.

7. The heat exchanger according to claim 3, in which the connector includes a threaded section and a nut, with the possibility of separation, is placed on the threaded section.

8. The heat exchanger according to claim 7, in which the connector includes a rod having threaded ends and nuts on each end of the rod.

9. The heat exchanger according to claim 3, in which each pair of opposite plates are connected outside of the other pair of opposite plates.

10. The heat exchanger according to claim 9, in which the fingers of each aligned pair of plates held out for an adjacent area of the other pair of opposite plates.

11. The heat exchanger according to claim 9, in which each set of fingers includes a through hole, and the hole aligned with what's fingers opposite each pair of plates are located outside of the other pair of opposite plates, and are designed to receive a connector that is located outside the other pair of opposite plates.

12. Heat exchanger according to claim 11, in which a pair of plates connected to each other with the possibility of separation.

13. A heat exchanger containing a core having a shell with a top wall, bottom wall, and a pair of opposite side walls connecting the top and bottom walls for the formation of at least part of the fence, in which may be placed in the liquid, the housing having a top plate adjacent to the top wall, the bottom plate adjacent to the bottom wall, and a pair of side plates adjacent to each of the side walls, while the upper plate is connected to the bottom plate, and side plates are connected to each other to maintain the top wall, bottom wall and side walls of the shell.

14. Heat exchanger according to item 13, in which the shell is composed of a material suitable for contact with the fluid circulating in the core, and the housing consists of a carbon steel.

15. Heat exchanger according to item 13, wherein the plate body are connected to each other with the possibility of separation.

16. Heat exchanger according to 15, in which the plates are connected to each other by means of threaded fasteners.

17. Heat exchanger according to item 13, wherein the plate body includes spaced fingers, the fingers of the side of the Plaza is placed in between the fingers of the upper and lower plates.

18. The heat exchanger 17 in which the side plates are fastened to each other and to the core, and top and bottom walls bonded with each other and with the core.

19. Heat exchanger according to p, in which the force of attachment provided with a host of connectors.



 

Same patents:

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20 cl, 27 dwg

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8 cl, 7 dwg

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2 dwg

Spacer plate // 2259530

FIELD: placement in structural members of heat-exchange apparatuses.

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EFFECT: uniform distribution of flow of the heat-transfer agent in the cross section of the heat-transfer apparatus.

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FIELD: heat exchange apparatus; chemical industry and power engineering.

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4 cl, 9 dwg

FIELD: heat-exchanging equipment production, particularly for power machinery building.

SUBSTANCE: building cradle comprises system including members with support-and-guiding surfaces adapted to temporarily receive support panel for fan engine installation, wherein the support panel is temporarily secured to above support-and-guiding surfaces. The support-and-guiding surfaces are also used to receive support plates to fasten tension bar ends and connection plates arranged between the support plates. Building cradle member for support panel receiving define a circle in plane and has at least one horizontal support-and-guiding surface. Building cradle members for support and connection plates are mainly formed as prisms having trapezoid cross-sections with at least outer inclined face forming support-and-guiding surface to receive support and connection plates of central support member for fan engine installation.

EFFECT: increased manufacturability of gas air-cooling plant production, simplified assemblage, reduced costs and increased reliability and service life of structure to be produced.

10 cl, 6 dwg

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