High-tightness heat transfer plate with curved corrugation and plate heat exchanger

Abstract

The utility model discloses a kind of high sealing heat transfer plate piece with curve corrugation and plate heat exchanger, including sheet body, sheet body includes heat exchange area, the shunt area symmetrically distributed in the both ends of heat exchange area, there is formed with acceleration zone between heat exchange area and shunt area;Sealing groove is uniformly formed in the four peripheral edges of sheet body, flow channel is formed in the both sides of heat exchange area, several sealing hooks are formed with interval in the side of sealing groove towards flow channel, support bean is arranged between sealing hook and sealing groove, the inner wall of sealing groove is formed with curve corrugation.A kind of plate heat exchanger, including the heat transfer plate piece as described above.The utility model proposes a kind of high sealing heat transfer plate piece with curve corrugation and plate heat exchanger, by setting sealing hook in the edge of heat exchange sheet piece, and by pressing button type sealing rubber pad, two sheet pieces are sealed, improve the compression resistance, not leak under high pressure, effectively improve heat exchange efficiency in the actual operation process of heat exchange, to ensure that equipment stable operation.

Description

Technical Field

[0001] This utility model relates to a heat transfer plate and a plate heat exchanger, and more particularly to a heat transfer plate and a plate heat exchanger with curved corrugations and high sealing performance. Background Technology

[0002] Plate heat exchangers are widely used in the power HVAC field due to their high heat exchange efficiency, low heat loss, compact structure, and small footprint. The quality of a plate heat exchanger mainly depends on the pressing and assembly process of the plates. Since a plate heat exchanger consists of multiple stacked heat exchange plates, even a single plate tilting can cause the entire heat exchanger to leak, requiring disassembly and reassembly or even scrapping, increasing production costs.

[0003] Most plate heat exchangers on the market use sealing strips to seal two heat exchange plates. However, the sealing strips are prone to deformation under high temperature, which can lead to leakage and mixing of the medium. At the same time, the sealing strips have poor pressure resistance under high pressure, which affects the performance.

[0004] Therefore, it is necessary to design a heat transfer plate and plate heat exchanger with curved corrugations to solve the above-mentioned technical problems. Utility Model Content

[0005] To address the shortcomings of the aforementioned technologies, this utility model provides a heat transfer plate with curved corrugations and a plate heat exchanger with high sealing performance.

[0006] To solve the above technical problems, the technical solution adopted by this utility model is: a high-sealing heat transfer plate with curved corrugations, including a plate body, the plate body including a heat exchange zone and a flow distribution zone symmetrically distributed at both ends of the heat exchange zone, and an acceleration zone is formed between the heat exchange zone and the flow distribution zone.

[0007] The plate body has uniformly formed sealing grooves around its four edges, flow channels are formed on both sides of the heat exchange zone, and several sealing hooks are formed at intervals on the side of the sealing groove facing the flow channel. Supporting beads are set between the sealing hooks and the sealing groove, and the inner wall of the sealing groove is formed with curved ripples.

[0008] Preferably, the sealing hook includes three openings spaced apart, all of which face the flow channel. It includes two semi-circular grooves and a square groove located at the edge.

[0009] Preferably, a support bead is provided between the two semi-circular grooves, and the support bead is located between the sealing groove and the sealing hook.

[0010] Preferably, a snap-on sealing gasket is provided inside the sealing hook.

[0011] Preferably, the inner walls of the sealing grooves at the four apex corners of the plate body are formed with curved ripples.

[0012] Preferably, the surface of the heat exchange zone is uniformly covered with curved ripples.

[0013] A plate heat exchanger includes heat transfer plates as described above. The plate heat exchanger is composed of multiple heat transfer plates stacked upside down, with a sealing gasket sandwiched between two adjacent heat transfer plates.

[0014] Preferably, two heat transfer plates are welded together to form a group, and a medium channel is formed between the two curved corrugations.

[0015] This invention proposes a heat transfer plate with curved corrugations and a plate heat exchanger with high sealing performance. By setting sealing hooks on the edges of the heat exchange plates and sealing the two plates with snap-on sealing gaskets, the pressure resistance is improved, and there is no leakage under high pressure. In the actual operation of heat exchange, the heat exchange efficiency is effectively improved, thereby ensuring the stable operation of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the sealing groove.

[0018] Figure 3 for Figure 1 A partial structural diagram.

[0019] In the diagram: 1. Plate body; 2. Diversion zone; 3. Heat exchange zone; 4. Acceleration zone; 5. Sealing hook; 6. Support bead; 11. Sealing groove; 51. Semi-circular groove; 52. Square groove. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] like Figure 1 The heat transfer plate shown has a high sealing performance with curved corrugations. It includes a plate body 1, which includes a heat exchange zone 3 and a flow distribution zone 2 symmetrically distributed at both ends of the heat exchange zone. An acceleration zone 4 is formed between the heat exchange zone 3 and the flow distribution zone 2. The surface of the heat exchange zone 3 is uniformly covered with curved corrugations.

[0022] Sealing grooves 11 are uniformly formed around the perimeter of the plate body 1. Flow channels are formed on both sides of the heat exchange zone 3. Several sealing hooks 5 are formed at intervals on the side of the sealing groove 11 facing the flow channel. Supporting beads 6 are provided between the sealing hooks 5 and the sealing groove. The inner wall of the sealing groove 11 is formed with curved corrugations, such as... Figure 2 As shown, the inner walls of the sealing grooves at the four apex corners of the plate body 1 are all formed with curved ripples.

[0023] By changing the parallel texture of the sealing groove to a curved texture, and changing the flat texture at the four corners of the plate body to a curved texture, the plate's support and compressive strength are increased.

[0024] By forming curved ripples, the undulation of the waves can increase the strength, balance the heat exchange efficiency and resistance, and especially in high-pressure environments, it can prevent leakage from protruding parts.

[0025] As a preferred option, such as Figure 3 As shown, the sealing hook 5 includes three spaced-apart openings, all facing the flow channel. It includes two semi-circular grooves 51 arranged sequentially, and a square groove 52 located at the edge. By creating the sealing hook, the support surface between adjacent plates is increased, improving pressure resistance and reducing leakage.

[0026] Furthermore, a support bead 6 is provided between the two semi-circular grooves 51, and the support bead 6 is located between the sealing groove and the sealing hook.

[0027] By setting sealing hooks, the number of points on the support platform is increased. Holes are made in the heat transfer plates, and the protruding platform supports the sealing grooves of the adjacent heat transfer plates, thereby protecting the support of the plate body, improving the pressure resistance, achieving stable support, and preventing leakage. At the same time, the sealing performance is improved by the snap-on sealing gaskets that fit into the sealing grooves.

[0028] The sealing hook 5 is fitted with a snap-on sealing gasket. By using a snap-on gasket and adding support beads, the support, pressure resistance, and sealing performance of the plate are further increased. By simultaneously improving the sealing gasket and the plate, the sealing and support between the plates are ensured.

[0029] The raised portion of the snap-on gasket can provide additional support, enhancing the stability of the plate connection; the increased number of support points on the support platform increases the pressure resistance and reduces the risk of leakage, especially in high-pressure environments, where the support is particularly important to prevent the sealing gasket from being squeezed and deformed.

[0030] A plate heat exchanger includes heat transfer plates as described above. The plate heat exchanger is composed of multiple heat transfer plates stacked in reverse order, with a sealing gasket sandwiched between adjacent heat transfer plates. Two heat transfer plates are welded together to form a group, and a medium channel is formed between two curved corrugations.

[0031] The purpose of this invention is to provide a heat transfer plate with curved corrugations and a plate heat exchanger with high sealing performance. By setting sealing hooks, the support capacity of each contact point is improved, thereby enhancing the pressure resistance test and making it less prone to leakage. It can be widely used in chemical, power and other fields, and is especially suitable for high-pressure environments.

[0032] The above embodiments are not intended to limit the present utility model, nor is the present utility model limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the technical solution of the present utility model are also within the protection scope of the present utility model.

Claims

1. A high-sealing heat transfer plate with curved corrugations, comprising a plate body (1), characterized in that: The plate body (1) includes a heat exchange zone (3) and a flow distribution zone (2) symmetrically distributed at both ends of the heat exchange zone. An acceleration zone (4) is formed between the heat exchange zone (3) and the flow distribution zone (2). A sealing groove (11) is uniformly formed around the periphery of the plate body (1). Flow channels are formed on both sides of the heat exchange zone (3). A number of sealing hooks (5) are formed at intervals on the side of the sealing groove (11) facing the flow channel. A support bead (6) is provided between the sealing hook (5) and the sealing groove. Curved ripples are formed on the inner wall of the sealing groove (11).

2. The high-sealing heat transfer plate with curved corrugations according to claim 1, characterized in that: The sealing hook (5) includes three openings spaced apart, all of which face the flow channel. It includes two semi-circular grooves (51) arranged in sequence and a square groove (52) located at the edge.

3. The high-sealing heat transfer plate with curved corrugations according to claim 2, characterized in that: A support bead (6) is provided between the two semi-circular grooves (51), and the support bead (6) is located between the sealing groove and the sealing hook.

4. The high-sealing heat transfer plate with curved corrugations according to claim 1, characterized in that: The sealing hook (5) is fitted with a snap-on sealing gasket.

5. The high-sealing heat transfer plate with curved corrugations according to claim 1, characterized in that: The inner walls of the sealing grooves at the four apex corners of the plate body (1) are all formed with curved ripples.

6. The high-sealing heat transfer plate with curved corrugations according to claim 1, characterized in that: The surface of the heat exchange zone (3) is uniformly covered with curved ripples.

7. A plate heat exchanger, characterized in that: The plate heat exchanger includes the heat transfer plates as described in any one of claims 1-6, wherein the plate heat exchanger is composed of multiple heat transfer plates stacked in reverse order, and a sealing gasket is sandwiched between two adjacent heat transfer plates.

8. The plate heat exchanger according to claim 7, characterized in that: Two heat transfer plates are welded together to form a group, and a medium channel is formed between the two curved corrugations.

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