Corrugated sheet pack and plate heat exchanger

Abstract

The utility model relates to heat exchanger technical field, and disclose a kind of corrugated sheet group and plate heat exchanger, comprising: corrugated sheet body;Mounting structure, mounting structure includes suspension groove and thrust notch, suspension groove and thrust notch are interconnected and form a limit channel, by setting suspension groove and thrust notch, by the suspension groove of L shape cooperation one semicircular thrust notch, only one shaft object can be suspended corrugated sheet body, since the center of thrust notch and the central axis of corrugated sheet body coincide, and then after lifting, corrugated sheet body keeps vertical placement, it can be used in assembly process to the preliminary fixation and limit of corrugated sheet body, compared with the notch of swallowtail, the present scheme can be horizontally pushed when installing corrugated sheet body so that shaft enters thrust notch, it can also be installed vertically falling, and the convenience of dismounting is higher, while facilitating the removal of intermediate position's corrugated sheet body, it is advantageous for later maintenance.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, and in particular to a corrugated plate assembly and a plate heat exchanger. Background Technology

[0002] Plate heat exchangers are a type of high-efficiency heat exchanger consisting of a series of metal plates with a certain corrugated shape stacked together. The corrugated plates are one of the important components that isolate two media and achieve heat exchange.

[0003] A search revealed a leak-proof and efficiency-enhancing plate heat exchanger (publication number: CN112146486A), comprising a first plate, a second plate, a guide rod, a first plate, a first sealing assembly, an alarm device, a second plate, and a second sealing assembly. The first plate has a hot flow channel and a cold flow channel. The second plate is arranged parallel to the first plate. The guide rod is fixedly connected between the first and second plates and is located at both ends of the first plate. The first plate is located between the first and second plates and is arranged parallel to the first plate. Two adjacent first plates are connected to the hot flow channel and the cold flow channel, respectively. The first plate has a support groove for the guide rod to pass through. The first plate has a first groove device and a second groove device that are symmetrically arranged. The first sealing assembly is installed sequentially at intervals on the first groove device and the second groove device on two adjacent first plates. The support groove passes through the second plate.

[0004] In the existing technology, the corrugated plate is mainly installed by using the dovetail groove on its top in conjunction with the guide rail. Since multiple corrugated plates are installed by sliding radially along the guide rail in sequence, during cleaning, it is necessary to push away two adjacent corrugated plates one by one. When the corrugated plate in the middle position needs maintenance or replacement, it is necessary to remove all the corrugated plates on the side of the damaged corrugated plate one by one, resulting in a large amount of maintenance work in the later stage. There is room for optimization.

[0005] Therefore, we propose a corrugated plate assembly and a plate heat exchanger. Utility Model Content

[0006] The present invention mainly solves the technical problem that corrugated plates are inconvenient for later maintenance, and provides a corrugated plate assembly and a plate heat exchanger.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a corrugated plate assembly and a plate heat exchanger, comprising: The corrugated plate body has two first flow holes and two second flow holes. Both sides of the corrugated plate body are provided with corrugated structures. The two second flow holes are connected through the corrugated structure on one side, and the two first flow holes are connected through the corrugated structure on the other side. An installation structure is provided on the top of the corrugated plate body to limit the position of the corrugated plate body. The installation structure includes a suspension groove and a thrust notch, which are interconnected to form a limiting channel.

[0008] In a preferred embodiment of this utility model, two symmetrical stop grooves for installation are provided on the side wall of the corrugated plate body, and the stop grooves are arc-shaped grooves.

[0009] In a preferred embodiment of this utility model, the suspension groove is an L-shaped groove that penetrates the corrugated plate body. The suspension groove includes a horizontal section and a vertical section. The vertical section extends to the top of the corrugated plate body, and the height of the horizontal section is greater than the width of the vertical section.

[0010] In a preferred embodiment of this utility model, the thrust notch is a groove with an arc-shaped cross-section, and the thrust notch is opened at the top of the horizontal section of the suspension groove.

[0011] A plate heat exchanger includes a mounting frame on which a corrugated plate assembly as described in any one of claims is mounted. The side wall of the mounting frame has a plurality of side grooves, and a reinforcing screw is provided in the side groove. The reinforcing screw is engaged in the stop groove of the corrugated plate body. A suspension rod is fixedly provided on the mounting frame. The suspension rod can pass through the suspension groove and be engaged in the thrust notch. The corrugated plate body can slide and swing radially around the suspension rod.

[0012] In a preferred embodiment of this utility model, the suspension rod is a cylinder with a diameter equal to the thrust notch, and the end of the suspension rod is welded and fixed to the corrugated plate body.

[0013] As a preferred embodiment of this utility model, a gasket is provided on one side of the corrugated plate body, and two adjacent corrugated plate bodies are separated and sealed by the gasket. The gasket has the same suspension groove and thrust notch.

[0014] This utility model provides a corrugated plate assembly and a plate heat exchanger. It has the following beneficial effects: 1. This corrugated plate assembly and plate heat exchanger, by setting a suspension groove and a thrust notch, uses an L-shaped suspension groove in conjunction with a semi-circular thrust notch, requiring only a shaft to suspend the corrugated plate body. Since the center of the thrust notch coincides with the central axis of the corrugated plate body, the corrugated plate body remains vertical after being lifted. This can be used for initial fixing and limiting of the corrugated plate body during assembly. Compared with using a dovetail-shaped groove, this solution allows the shaft to be pushed horizontally into the thrust notch during installation of the corrugated plate body, or it can be installed vertically, making disassembly and assembly more convenient. It also facilitates the removal of the corrugated plate body in the middle position, which is advantageous for later maintenance.

[0015] 2. This corrugated plate assembly and plate heat exchanger, when installing multiple corrugated plate bodies, can be temporarily positioned by aligning the suspension groove with the suspension rod and adjusting the position of the corrugated plate body so that the suspension rod enters the thrust notch. The engagement between the thrust notch and the suspension rod achieves temporary positioning of the corrugated plate body. After the multiple corrugated plate bodies and gaskets are stacked, the reinforcing screws are inserted into the side grooves and the nuts are tightened. The reinforcing screws on both sides are engaged in the stop grooves to compress the multiple corrugated plate bodies, which facilitates the initial fixation of the corrugated plate bodies. During subsequent cleaning and maintenance, the corrugated plate bodies can be rotated, swinging around the suspension rod at a certain angle and misaligning with another corrugated plate body, thereby exposing the corrugated structure of the two corrugated plate bodies for washing and cleaning. Attached Figure Description

[0016] Figure 1 This is a perspective view of the corrugated plate body of this utility model; Figure 2 This is a perspective view of the corrugated plate body and suspension rod of this utility model; Figure 3 This is one of the overall perspective views of this utility model; Figure 4 This is the second overall perspective view of the present utility model; Figure 5 This is a perspective view of the mounting bracket of this utility model.

[0017] Legend: 10. Corrugated plate body; 11. First flow hole; 12. Second flow hole; 13. Stop groove; 14. Suspension groove; 15. Thrust notch; 20. Mounting bracket; 21. Suspension rod; 22. Gasket; 23. Side groove; 24. Reinforcing screw. Detailed Implementation

[0018] A corrugated plate assembly and a plate heat exchanger, such as Figure 1 As shown, it includes: The corrugated plate body 10 has two first flow holes 11 and two second flow holes 12. Both sides of the corrugated plate body 10 are provided with corrugated structures. The two second flow holes 12 are connected by the corrugated structure on one side, and the two first flow holes 11 are connected by the corrugated structure on the other side. The first medium enters from the first flow hole 11 above and flows through the corrugated structure to the other first flow hole 11. The second medium enters from the second flow hole 12 into the corrugated structure on the other side of the corrugated plate body 10 and flows out from the other second flow hole 12. The heat exchange between the two media is achieved through multiple stacked corrugated plate bodies 10. Since this is a known prior art, it will not be described in detail here. The corrugated plate body 10 can be made of titanium in one piece to meet the requirements of corrosion resistance.

[0019] like Figure 1 and Figure 2The mounting structure is set on the top of the corrugated plate body 10 to limit the corrugated plate body 10. The mounting structure includes a suspension groove 14 and a thrust notch 15. The suspension groove 14 and the thrust notch 15 are interconnected and form a limiting channel. Two stop grooves 13 for installation are symmetrically opened on the side wall of the corrugated plate body 10. The stop groove 13 is an arc-shaped groove. The suspension groove 14 is a groove with an L-shaped cross section. The suspension groove 14 penetrates the corrugated plate body 10. The suspension groove 14 includes a horizontal section and a vertical section. The vertical section extends to the top of the corrugated plate body 10. The height of the horizontal section is greater than the width of the vertical section. The thrust notch 15 is a groove with an arc-shaped cross section. The thrust notch 15 is opened at the top of the horizontal section of the suspension groove 14. In this solution, the main optimization is made to the structure used to install the corrugated plate body 10. The traditional installation structure is a dovetail tenon, requiring horizontal pushing of the corrugated plate body 10 during installation to engage the tenon with the rod. During disassembly, the corrugated plate body 10 at the edge can only be removed before the one in the middle can be taken off, making individual replacement and cleaning inconvenient. By setting a suspension groove 14 and a thrust notch 15, the L-shaped suspension groove 14, combined with a semi-circular thrust notch 15, allows for installation with only a single shaft. The corrugated plate body 10 can be suspended. Since the center of the thrust notch 15 coincides with the central axis of the corrugated plate body 10, the corrugated plate body 10 remains vertical after being lifted. This can be used for the initial fixing and limiting of the corrugated plate body 10 during assembly. Compared with the dovetail-shaped slot, this solution allows the corrugated plate body 10 to be pushed horizontally to allow the shaft to enter the thrust notch 15, or it can be installed vertically. This makes disassembly and assembly more convenient and also facilitates the removal of the corrugated plate body 10 in the middle position, which is advantageous for later maintenance.

[0020] like Figure 3 , Figure 4 and Figure 5 A plate heat exchanger includes a mounting frame 20 on which all the aforementioned corrugated plate assemblies are mounted. The side wall of the mounting frame 20 has several side grooves 23, and reinforcing screws 24 are provided in the side grooves 23. The reinforcing screws 24 are inserted into the stop grooves 13 of the corrugated plate body 10. The mounting frame 20 is fixedly provided with a suspension rod 21. The suspension rod 21 can pass through the suspension groove 14 and be inserted into the thrust notch 15. The corrugated plate body 10 can slide and swing radially around the suspension rod 21. The suspension rod 21 is a cylinder, and the diameter of the suspension rod 21 is equal to that of the thrust notch 15. The end of the suspension rod 21 is welded and fixed to the corrugated plate body 10. A gasket 22 is provided on one side of the corrugated plate body 10. Two adjacent corrugated plate bodies 10 are separated and sealed by the gasket 22. The gasket 22 has the same suspension groove 14 and thrust notch 15. As a supplement to the above solution, when installing multiple corrugated plate bodies 10, the suspension groove 14 can be aligned with the suspension rod 21, and the position of the corrugated plate body 10 can be adjusted so that the suspension rod 21 enters the thrust notch 15. The corrugated plate body 10 is temporarily limited by the engagement between the thrust notch 15 and the suspension rod 21. After the multiple corrugated plate bodies 10 and the gasket 22 are stacked, the reinforcing screw 24 is placed into the side groove 23 and the nut is tightened. The reinforcing screws 24 on both sides are used to engage the stop groove 13 to compress the multiple corrugated plate bodies 10. This makes it convenient to fix the corrugated plate bodies 10 when initially installing them. During the later cleaning and maintenance, the corrugated plate body 10 can be rotated, and the corrugated plate body 10 swings around the suspension rod 21 at a certain angle and is misaligned with another corrugated plate body 10. This allows the corrugated structure of the two corrugated plate bodies 10 to be exposed for washing and cleaning.

[0021] The working principle of this utility model is as follows: When installing multiple corrugated plate bodies 10, the suspension groove 14 can be aligned with the suspension rod 21, and the position of the corrugated plate body 10 can be adjusted so that the suspension rod 21 enters the thrust notch 15. The corrugated plate body 10 is temporarily limited by the engagement between the thrust notch 15 and the suspension rod 21. After the multiple corrugated plate bodies 10 and the gasket 22 are stacked, the reinforcing screws 24 are placed into the side grooves 23 and the nuts are tightened. The reinforcing screws 24 on both sides are engaged in the stop grooves 13 to squeeze the multiple corrugated plate bodies 10. The pressure is such that the center of the thrust notch 15 coincides with the central axis of the corrugated plate body 10, so that the corrugated plate body 10 remains vertical after being lifted. This can be used for the initial fixation and positioning of the corrugated plate body 10 during the assembly process. The first medium enters from the first flow hole 11 above and flows through the corrugated structure to another first flow hole 11. The second medium enters the corrugated structure on the other side of the corrugated plate body 10 from the second flow hole 12 and flows out from another second flow hole 12. The heat exchange between the two media is achieved through multiple stacked corrugated plate bodies 10.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A corrugated plate assembly, characterized in that, include: The corrugated plate body (10) has two first flow holes (11) and two second flow holes (12). Both sides of the corrugated plate body (10) are provided with corrugated structures. The two second flow holes (12) are connected by the corrugated structure on one side, and the two first flow holes (11) are connected by the corrugated structure on the other side. An installation structure is provided on the top of the corrugated plate body (10) to limit the corrugated plate body (10). The installation structure includes a suspension groove (14) and a thrust notch (15). The suspension groove (14) and the thrust notch (15) are interconnected and form a limiting channel.

2. The corrugated plate assembly according to claim 1, characterized in that: The corrugated plate body (10) has two symmetrically provided stop grooves (13) for installation on its side wall. The stop grooves (13) are arc-shaped grooves.

3. The corrugated plate assembly according to claim 1, characterized in that: The suspension groove (14) is an L-shaped groove that penetrates the corrugated plate body (10). The suspension groove (14) includes a horizontal section and a vertical section. The vertical section extends to the top of the corrugated plate body (10), and the height of the horizontal section is greater than the width of the vertical section.

4. The corrugated plate assembly according to claim 1, characterized in that: The thrust notch (15) is a groove with an arc-shaped cross section, and the thrust notch (15) is opened at the top of the horizontal section of the suspension groove (14).

5. A plate heat exchanger, comprising a mounting bracket (20), characterized in that: The mounting bracket (20) is equipped with a corrugated plate assembly as described in any one of claims 1-4. The side wall of the mounting bracket (20) is provided with a plurality of side grooves (23). A reinforcing screw (24) is provided in the side groove (23). The reinforcing screw (24) is inserted into the stop groove (13) of the corrugated plate body (10). The mounting bracket (20) is fixedly provided with a suspension rod (21). The suspension rod (21) can pass through the suspension groove (14) and be inserted into the thrust notch (15). The corrugated plate body (10) can slide and swing radially around the suspension rod (21).

6. The plate heat exchanger according to claim 5, characterized in that: The suspension rod (21) is a cylinder, and the diameter of the suspension rod (21) is equal to that of the thrust notch (15). The end of the suspension rod (21) is welded and fixed to the corrugated plate body (10).

7. The plate heat exchanger according to claim 5, characterized in that: A gasket (22) is provided on one side of the corrugated plate body (10). Two adjacent corrugated plate bodies (10) are separated and sealed by the gasket (22). The gasket (22) has the same suspension groove (14) and thrust notch (15).

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