Heat transfer plate and sealing gasket structure of ship heat exchanger

Abstract

The utility model discloses a heat transfer plate and sealing gasket structure of a ship heat exchanger, and relates to the technical field of sealing of heat exchange plates of heat exchangers. The heat transfer plate comprises a heat transfer plate body, sealing gasket placing grooves are formed in the upper surface and the lower surface of the heat transfer plate body, sealing gasket bodies matched with the sealing gasket placing grooves are placed in the sealing gasket placing grooves, expansion pads are fixedly installed at the positions, close to the sealing gasket placing grooves, of the side walls of the sealing gasket bodies, and the expansion pads are hollow. When the adjacent heat transfer plate bodies are installed, the heat transfer plate bodies extrude each other, at the moment, the air bag cushion arranged on the side wall of the sealing gasket body is extruded to enable other parts inside the air bag cushion to enter the expansion cushion, the expansion cushion expands, filling of the sealing gasket body and the sealing gasket containing groove is guaranteed, and the sealing effect is improved. When the heat transfer plate works in the heat exchanger subsequently, the problem that the sealing performance is affected due to deformation of the sealing gasket caused by pressure and temperature changes on the heat transfer plate is solved, and the service life of the heat transfer plate is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchanger heat exchange plate sealing, in particular to a ship heat exchanger heat transfer plate and sealing gasket structure. Background Art

[0002] Plate heat exchangers used in ships are made of stamped, concave-convex stainless steel plates. The concave-convex lines between adjacent plates are 180 degrees relative to each other. Therefore, the concave-convex ridges between the two plates of the plate heat exchanger form staggered contact points. After the contact points are connected by vacuum welding, the plate heat exchanger's high-pressure resistant staggered flow structure is formed. This staggered flow structure creates strong turbulence in the hot and cold fluids in the plate heat exchanger, achieving a high heat exchange effect.

[0003] When the heat transfer plates in the current plate heat exchanger are in use, sealing gaskets need to be set on the surface of the heat transfer plates to ensure the sealing between adjacent heat transfer plates and prevent leakage. However, after the current sealing gaskets are assembled in the heat transfer plates, the pressure and temperature on the heat transfer plates change during long-term operation, and the sealing gaskets will be deformed, affecting their sealing performance.

[0004] In response to the above problems, the inventors propose a heat transfer plate and sealing gasket structure for a ship heat exchanger to solve the above problems. Utility Model Content

[0005] In order to solve the above problems, the purpose of the present invention is to provide a heat transfer plate and sealing gasket structure for a ship heat exchanger.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: a heat transfer plate and sealing gasket structure of a ship heat exchanger, comprising a heat transfer plate body, wherein sealing gasket placement grooves are provided on the upper and lower surfaces of the heat transfer plate body, a sealing gasket body which is matched with the sealing gasket placement groove is placed in the sealing gasket placement groove, an expansion gasket is fixedly installed on the side wall of the sealing gasket body near the sealing gasket placement groove, the interior of the expansion gasket is hollow, and an airbag cushion is fixedly installed on the side of the expansion gasket away from the sealing gasket placement groove, the airbag cushion is in the shape of an elongated strip and is arranged on the surface of the expansion gasket, a plurality of the airbag cushions are arranged intermittently on the expansion gasket, and the airbag cushions are communicated with the expansion gaskets.

[0007] Preferably, two flexible plates are fixedly provided at the connection between the expansion cushion and the airbag cushion, and the two flexible plates are symmetrically and obliquely distributed as a whole.

[0008] Preferably, a material storage gap is provided on the lower surface of the sealing gasket body.

[0009] Preferably, a plurality of equally spaced blocks are fixedly provided on the side wall of the sealing pad body, and the airbag cushion is arranged between adjacent blocks when it is close to the block position. The block itself is flexibly arranged, and a slot corresponding to the block is provided on the edge of the upper surface of the heat transfer plate body; the end of the block is hook-shaped.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] The utility model discloses that when installing between adjacent heat transfer plate bodies, the heat transfer plate bodies are squeezed against each other. At this time, the airbag cushion arranged on the side wall of the sealing gasket body will be squeezed, so that the airbag cushion inside enters the expansion cushion, causing the expansion cushion itself to expand, thereby ensuring that the sealing gasket body and the sealing gasket placement groove are filled. When the heat transfer plate is subsequently working in the heat exchanger, the problem of deformation of the sealing gasket caused by pressure and temperature changes on the heat transfer plate, which affects its sealing performance, is reduced, thereby extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 2 For this utility model Figure 1 The enlarged structural diagram is shown in FIG.

[0015] Figure 3 This is a schematic diagram of the front cross-sectional structure of the sealing gasket body of the present invention.

[0016] In the figure: 1. heat transfer plate body; 11. sealing gasket body; 12. sealing gasket placement groove; 13. expansion pad; 14. airbag cushion; 15. flexible plate; 16. material storage gap; 2. clamping block; 21. clamping slot. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] Example: Figure 1-3 As shown, the utility model provides a heat transfer plate and sealing gasket structure for a ship heat exchanger, comprising a heat transfer plate body 1, wherein sealing gasket placement grooves 12 are provided on the upper and lower surfaces of the heat transfer plate body 1, a sealing gasket body 11 which is arranged to match the sealing gasket placement groove 12 is placed in the sealing gasket placement groove 12, an expansion gasket 13 is fixedly installed on the side wall of the sealing gasket body 11 near the sealing gasket placement groove 12, the expansion gasket 13 is hollow inside, and an airbag cushion 14 is fixedly installed on the side of the expansion gasket 13 away from the sealing gasket placement groove 12, the airbag cushion 14 is arranged in an elongated strip on the surface of the expansion gasket 13, and the airbag cushion 14 and the expansion gasket 13 are communicated with each other.

[0019] Two flexible plates 15 are fixed at the connection between the expansion pad 13 and the airbag pad 14. The two flexible plates 15 are symmetrically and obliquely distributed as a whole. When the airbag pad 14 is not squeezed, the flexible plates 15 can store air in the airbag pad 14. When the airbag pad 14 is squeezed, the two flexible plates 15 will open under the squeeze, allowing gas to enter the expansion pad 13, thereby causing the expansion pad 13 to expand itself, thereby further ensuring the filling of the sealing pad body 11 and the sealing groove.

[0020] A material storage gap 16 is provided on the lower surface of the sealing gasket body 11. Specifically, the material storage gap 16 is provided at the circular through hole on the heat transfer plate body 1. When adhesive glue is applied at this position later, the material storage gap 16 can store more glue, so that the sealing gasket body 11 is more stable when installed on the heat transfer plate body 1, thereby ensuring the stability of the subsequent sealing.

[0021] A plurality of equally spaced card blocks 2 are fixedly provided on the side wall of the sealing gasket body 11. The card blocks 2 themselves are flexibly arranged. A card groove 21 corresponding to the card block 2 is provided on the edge of the upper surface of the heat transfer plate body 1. The card blocks 2 themselves are flexible and stretchable. Therefore, when the sealing gasket body 11 is installed along the sealing gasket placement groove 12 provided on the heat transfer plate body 1, the card blocks 2 are stretched and stuck in the card groove 21, thereby improving the stability of the sealing gasket body 11 during installation; the end of the card block 2 is hook-shaped, and the hook-shaped end can make the end of the card block 2 stably stuck at the edge of the card groove 21 when stretched, thereby completing the positioning of the sealing gasket body 11 on the heat transfer plate body 1.

[0022] Working principle: Place and press the sealing gasket body 11 along the sealing gasket placement groove 12 opened on the heat transfer plate body 1, so that the sealing gasket body 11 and the expansion plate set on the side wall can be stuck in the sealing gasket placement groove 12. Then the staff can pull the clamping block 2 at the edge of the sealing gasket body 11. Since the clamping block 2 itself is flexible and stretchable, when the sealing gasket body 11 is installed along the sealing gasket placement groove 12 opened on the heat transfer plate body 1, the clamping block 2 is stretched and stuck in the clamping groove 21, thereby improving the stability of the sealing gasket body 11 during installation, and waiting for the adjacent When the heat transfer plate body 1 is installed on the plate heat exchanger, adjacent heat transfer plate bodies 1 will be tightly squeezed against each other. At this time, the squeezed airbag cushion 14 squeezes the internal gas against the two flexible plates 15 to open them, allowing the gas to enter the expansion cushion 13, thereby causing the expansion cushion 13 to expand itself, thereby further ensuring the filling between the sealing cushion body 11 and the sealing cushion placement groove 12. When the heat transfer plate is subsequently working in the heat exchanger, the problem of deformation of the sealing cushion due to pressure and temperature changes on the heat transfer plate, which affects its sealing performance, is reduced, thereby extending its service life.

[0023] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A heat transfer plate and sealing gasket structure for a ship heat exchanger, comprising a heat transfer plate body (1), characterized in that: The heat transfer plate body (1) is provided with a sealing gasket placement groove (12) on the upper and lower surfaces, and a sealing gasket body (11) arranged to match the sealing gasket placement groove (12) is placed in the sealing gasket placement groove (12). An expansion gasket (13) is fixedly installed on the side wall of the sealing gasket body (11) near the sealing gasket placement groove (12). The expansion gasket (13) is hollow inside. An airbag cushion (14) is fixedly installed on the side of the expansion gasket (13) away from the sealing gasket placement groove (12). The airbag cushion (14) is arranged in a long strip on the surface of the expansion gasket (13). The number of the airbag cushions (14) is intermittently arranged on the expansion gasket (13), and the airbag cushion (14) and the expansion gasket (13) are communicated.

2. A heat transfer plate and sealing gasket structure for a ship heat exchanger according to claim 1, characterized in that: Two flexible plates (15) are fixedly provided at the connection between the expansion pad (13) and the airbag pad (14), and the two flexible plates (15) are arranged symmetrically and tiltedly as a whole.

3. The heat transfer plate and sealing gasket structure of a ship heat exchanger according to claim 1, characterized in that: A material storage notch (16) is provided on the lower surface of the sealing gasket body (11).

4. The heat transfer plate and sealing gasket structure of a ship heat exchanger according to claim 1, characterized in that: A plurality of equally spaced card blocks (2) are fixedly provided on the side wall of the sealing pad body (11); the airbag cushion (14) is arranged between adjacent card blocks (2) when it is close to the card blocks (2); the card blocks (2) themselves are flexibly arranged; and a card slot (21) corresponding to the card blocks (2) is provided on the edge of the upper surface of the heat transfer plate body (1).

5. The heat transfer plate and sealing gasket structure of a ship heat exchanger according to claim 4, characterized in that: The end of the clamping block (2) is arranged in a hook shape.

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