Plate heat exchanger gasket

Abstract

The utility model relates to the technical field of gaskets, and discloses a plate heat exchanger gasket which comprises a gasket positioning assembly, sealing assemblies are fixedly connected to the top and the bottom of the gasket positioning assembly respectively, the gasket positioning assembly comprises an annular plate, and telescopic assemblies are fixedly connected to the top and the bottom of the annular plate respectively. The telescopic assembly comprises a telescopic sleeve; in the installation process, the gasket is placed in the gasket groove, when equipment is fixed, the gasket is extruded by two pieces of equipment, then the sealing ring gets close to the telescopic ring, and meanwhile the telescopic ring is compressed; and meanwhile, extrusion force can be generated on the telescopic column, so that the telescopic column gets close to the gasket positioning assembly and then drives the limiting circular plate to extrude the telescopic spring, the telescopic spring continuously has deformation potential energy after fixation is completed, the sealing ring is pushed to get close to the bottom of the gasket fixing groove, and therefore the sealing purpose is achieved, and a user can conveniently complete gasket installation.

Description

Technical Field

[0001] The utility model relates to the technical field of gaskets, and more particularly to a gasket for a plate heat exchanger. Background Art

[0002] A plate heat exchanger is a highly efficient heat exchanger constructed from a series of stacked metal sheets with a specific corrugated shape. Its operating principle is based on the intermittent heat transfer between hot and cold media through the regularly arranged corrugated channels on the heat exchange plates. Thin rectangular fluid channels are formed between the individual heat exchange plates. The hot and cold media enter these narrow, winding channels through holes in the four corners of the plates. The corrugations on the plates increase the rigidity of the plates and also the turbulence of the fluid. The two media flow in parallel or countercurrent between the plates, exchanging heat through the intermediate interlayer plates.

[0003] During the use of the existing gasket, the gasket groove is sealed by a rubber ring that cooperates with the gasket groove, and then the effective sealing of the heat exchanger is ensured by squeezing between the equipment. Since the gasket is soft, the size of the gasket often needs to be slightly larger than the size of the gasket groove to ensure the sealing effect. However, since the size of the gasket is slightly larger than the size of the gasket groove, it is not convenient to place the gasket in the gasket groove, and when the existing gasket is replaced, its shape has been deformed under the action of long-term pressure, making it inconvenient to remove the gasket. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a plate heat exchanger gasket to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solution: a plate heat exchanger gasket, comprising a gasket positioning assembly, the top and bottom of the gasket positioning assembly are fixedly connected to a sealing assembly, the gasket positioning assembly comprises an annular plate, the top and bottom of the annular plate are fixedly connected to a telescopic assembly, the telescopic assembly comprises a telescopic sleeve, the inner side of the telescopic sleeve is fixedly connected to a telescopic spring, the end of the telescopic spring away from the telescopic sleeve is fixedly connected to a limiting circular plate, and the end of the limiting circular plate away from the telescopic spring is fixedly connected to a telescopic column.

[0006] As a preferred technical solution of the present application, the sealing assembly includes a telescopic ring, the inner and outer sides of which are provided with a first V-shaped groove, the top of the telescopic ring is fixedly connected to a sealing ring, the top of the sealing ring is provided with a second V-shaped groove, and the bottom of the telescopic ring is provided with a square ring groove.

[0007] As a preferred technical solution of the present application, a fixing hole is provided on the top of the annular plate, the diameter of the fixing hole on the top of the annular plate matches the diameter of the telescopic sleeve, and the directions of two adjacent telescopic components are opposite.

[0008] As a preferred technical solution of this application, the diameters of the outer and inner sides of the bottom of the telescopic ring are the same as the diameters of the outer and inner sides of the top of the annular plate, and the diameters of the outer and inner sides of the bottom of the sealing ring are the same as the diameters of the outer and inner sides of the top of the telescopic ring.

[0009] As a preferred technical solution of the present application, the sum of the depth of the square annular groove and the thickness of the annular plate is the same as the height of the telescopic assembly, and the width of the square annular groove is twice the diameter of the telescopic sleeve.

[0010] As a preferred technical solution of the present application, the diameter of the limiting circular plate is matched with the diameter of the inner side of the telescopic sleeve in a tolerance manner, and the diameter of the telescopic column is matched with the diameter of the bottom opening of the telescopic sleeve in a tolerance manner.

[0011] The technical effects and advantages of this utility model are:

[0012] 1. During the installation process of the utility model, the gasket is placed in the gasket groove. When the device is fixed, the gasket will be squeezed by the squeezing force of the two devices, which will cause the sealing ring to approach the telescopic ring. At the same time, the telescopic ring will be compressed, and at the same time, it will generate squeezing force on the telescopic column to make the telescopic column approach the gasket positioning assembly and then drive the limiting circular plate to squeeze the telescopic spring. After the fixation is completed, the telescopic spring will continue to have deformation potential energy, which will push the sealing ring close to the bottom of the gasket fixing groove, thereby achieving the purpose of sealing and facilitating the user to complete the installation of the gasket.

[0013] 2. When the gasket needs to be replaced, the utility model removes the equipment on both sides of the gasket, and then releases the deformation potential energy of the telescopic spring, which will cause the limiting circular plate and the telescopic column to return to their original positions, and then push the telescopic ring, the first V-shaped groove, the sealing ring and the second V-shaped groove to return to their original positions, making it easy to remove the gasket and replace it, making the equipment maintenance faster and eliminating the situation where the gasket is difficult to remove. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present utility model.

[0016] Figure 3 This is a schematic diagram of the sealing component structure of the present utility model.

[0017] Figure 4This is a schematic structural diagram of the gasket positioning assembly of the present utility model.

[0018] Figure 5 This is a schematic diagram of the telescopic component structure of the utility model.

[0019] The accompanying drawings are marked as follows: 1. Gasket positioning assembly; 101. Ring plate; 102. Telescopic assembly; 1021. Telescopic sleeve; 1022. Telescopic spring; 1023. Limiting circular plate; 1024. Telescopic column; 2. Sealing assembly; 201. Telescopic ring; 202. First V-shaped groove; 203. Sealing ring; 204. Second V-shaped groove; 205. Square ring groove. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples. The plate heat exchanger gasket involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] Reference Figures 1 to 5 The utility model provides a plate heat exchanger gasket, including a gasket positioning assembly 1, the top and bottom of the gasket positioning assembly 1 are fixedly connected to a sealing assembly 2, the gasket positioning assembly 1 includes an annular plate 101, the top and bottom of the annular plate 101 are fixedly connected to a telescopic assembly 102, the telescopic assembly 102 includes a telescopic sleeve 1021, the inner side of the telescopic sleeve 1021 is fixedly connected to a telescopic spring 1022, the end of the telescopic spring 1022 away from the telescopic sleeve 1021 is fixedly connected to a limiting circular plate 1023, and the end of the limiting circular plate 1023 away from the telescopic spring 1022 is fixedly connected to a telescopic column 1024 ; During the installation process, the gasket is placed in the gasket groove. When the device is fixed, the gasket will be subjected to the squeezing force of the two devices, which will cause the sealing ring 203 to approach the telescopic ring 201, and at the same time the telescopic ring 201 will be compressed, and at the same time, it will generate squeezing force on the telescopic column 1024, causing the telescopic column 1024 to approach the gasket positioning assembly 1 and then drive the limiting circular plate 1023 to squeeze the telescopic spring 1022. After the fixation is completed, the telescopic spring 1022 will continue to have deformation potential energy, which will push the sealing ring 203 close to the bottom of the gasket fixing groove, thereby achieving the purpose of sealing and making it easier for users to complete the installation of the gasket.

[0022] In a preferred embodiment, the sealing assembly 2 includes a telescopic ring 201, and a first V-shaped groove 202 is provided on the inner and outer sides of the telescopic ring 201. A sealing ring 203 is fixedly connected to the top of the telescopic ring 201, a second V-shaped groove 204 is provided on the top of the sealing ring 203, and a square ring groove 205 is provided on the bottom of the telescopic ring 201; when the gasket needs to be replaced, the equipment on both sides of the gasket is removed, and then the deformation potential energy of the telescopic spring 1022 is released, which will cause the limiting circular plate 1023 and the telescopic column 1024 to return to their original positions, and then push the telescopic ring 201, the first V-shaped groove 202, the sealing ring 203 and the second V-shaped groove 204 to return to their original positions, making it easy to remove the gasket and replace it with a new one, making the equipment maintenance faster and there will be no situation where the gasket is inconvenient to remove.

[0023] In a preferred embodiment, a fixing hole is opened on the top of the annular plate 101 , the diameter of the fixing hole on the top of the annular plate 101 matches the diameter of the telescopic sleeve 1021 , and the directions of two adjacent telescopic components 102 are opposite.

[0024] In a preferred embodiment, the outer and inner diameters of the bottom of the telescopic ring 201 are the same as the outer and inner diameters of the top of the annular plate 101 , and the outer and inner diameters of the bottom of the sealing ring 203 are the same as the outer and inner diameters of the top of the telescopic ring 201 .

[0025] In a preferred embodiment, the sum of the depth of the square annular groove 205 and the thickness of the annular plate 101 is equal to the height of the telescopic assembly 102 , and the width of the square annular groove 205 is twice the diameter of the telescopic sleeve 1021 .

[0026] In a preferred embodiment, the diameter of the limiting circular plate 1023 and the inner diameter of the telescopic sleeve 1021 have a tolerance match, and the diameter of the telescopic column 1024 and the bottom opening diameter of the telescopic sleeve 1021 have a tolerance match.

[0027] The working principle of the present invention is as follows: during the installation process, the gasket is placed in the gasket groove. When the device is fixed, the gasket will be squeezed by the squeezing force of the two devices, which will cause the sealing ring 203 to move closer to the telescopic ring 201. At the same time, the telescopic ring 201 will be compressed, and at the same time, it will generate squeezing force on the telescopic column 1024, causing the telescopic column 1024 to move closer to the gasket positioning assembly 1, and then drive the limiting circular plate 1023 to squeeze the telescopic spring 1022. After the fixation is completed, the telescopic spring 1022 will continue to have deformation potential energy, so as to push the sealing ring 203 close to the bottom of the gasket fixing groove, thereby achieving the purpose of sealing and facilitating the user to complete the installation of the gasket.

[0028] When the gasket needs to be replaced, the equipment on both sides of the gasket is removed, and then the deformation potential energy of the telescopic spring 1022 is released, which will cause the limiting circular plate 1023 and the telescopic column 1024 to return to their original positions, and then push the telescopic ring 201, the first V-shaped groove 202, the sealing ring 203 and the second V-shaped groove 204 back to their original positions, making it easy to remove the gasket and replace it with a new one, making the equipment maintenance faster and there will be no situation where the gasket is difficult to remove.

[0029] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0030] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0031] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A plate heat exchanger gasket, comprising a gasket positioning assembly (1), characterized in that: The top and bottom of the gasket positioning assembly (1) are both fixedly connected to the sealing assembly (2), the gasket positioning assembly (1) comprises an annular plate (101), the top and bottom of the annular plate (101) are both fixedly connected to the telescopic assembly (102), the telescopic assembly (102) comprises a telescopic sleeve (1021), the inner side of the telescopic sleeve (1021) is fixedly connected to a telescopic spring (1022), one end of the telescopic spring (1022) away from the telescopic sleeve (1021) is fixedly connected to a limiting circular plate (1023), and one end of the limiting circular plate (1023) away from the telescopic spring (1022) is fixedly connected to a telescopic column (1024).

2. A plate heat exchanger gasket according to claim 1, characterized in that: The sealing assembly (2) comprises a telescopic ring (201), wherein the inner side and the outer side of the telescopic ring (201) are both provided with a first V-shaped groove (202), the top of the telescopic ring (201) is fixedly connected to a sealing ring (203), the top of the sealing ring (203) is provided with a second V-shaped groove (204), and the bottom of the telescopic ring (201) is provided with a square ring groove (205).

3. The plate heat exchanger gasket according to claim 1, characterized in that: A fixing hole is provided at the top of the annular plate (101), the diameter of the fixing hole at the top of the annular plate (101) matches the diameter of the telescopic sleeve (1021), and the directions of two adjacent telescopic components (102) are opposite.

4. A plate heat exchanger gasket according to claim 2, characterized in that: The diameters of the outer and inner sides of the bottom of the telescopic ring (201) are the same as the diameters of the outer and inner sides of the top of the annular plate (101), and the diameters of the outer and inner sides of the bottom of the sealing ring (203) are the same as the diameters of the outer and inner sides of the top of the telescopic ring (201).

5. The plate heat exchanger gasket according to claim 2, characterized in that: The sum of the depth of the square annular groove (205) and the thickness of the annular plate (101) is the same as the height of the telescopic assembly (102), and the width of the square annular groove (205) is twice the diameter of the telescopic sleeve (1021).

6. The plate heat exchanger gasket according to claim 1, characterized in that: The diameter of the limiting circular plate (1023) and the inner diameter of the telescopic sleeve (1021) are matched with each other in tolerance, and the diameter of the telescopic column (1024) and the bottom opening of the telescopic sleeve (1021) are matched with each other in tolerance.

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