Leakage-proof structure of plate heat exchanger

Abstract

The utility model discloses a leakproof structure of a plate heat exchanger, and particularly relates to the technical field of plate heat exchangers, the leakproof structure of the plate heat exchanger comprises a metal sheet, a sealing mechanism is arranged on the metal sheet, the sealing mechanism comprises a first sealing assembly, the first sealing assembly is arranged on the front surface of the metal sheet, and the first sealing assembly comprises a first gasket and a second gasket; a first protruding strip is arranged on one side of the first gasket, and a first sealing strip is arranged on one side of the first protruding strip. The first sealing assembly is arranged on the front surface of the metal sheet, the second sealing assembly is arranged on the rear surface of the metal sheet, the second sealing assembly comprises a second gasket, and a second sealing strip is arranged on one side of the second gasket. Therefore, the sealing performance between the two adjacent metal sheets is improved, and deformation and gaps cannot be generated when the metal sheets continuously work in high-temperature and high-pressure environments.

Description

Technical Field

[0001] The utility model relates to the field of plate heat exchangers, in particular to a leakage-proof structure of a plate heat exchanger. Background Art

[0002] The plate heat exchanger is a high-efficiency heat exchanger made of a series of stacked metal sheets with a certain corrugated shape. The cold water channel and the hot water channel between two adjacent metal sheets are separated by a sealing structure to form a thin rectangular flow channel to realize the flow of liquid. The hot water and cold water will not mix together when passing through the channel of the metal sheet, and no leakage will occur. Rubber rings are usually used as sealing structures.

[0003] In the Chinese patent number CN201020187887.7, the patent name is a plate heat exchanger, which discloses that at least one heat exchange plate in the heat exchange plate group is sealed to the heat exchange plate by a rubber gasket on one side and is sealed to the heat exchange plate by welding on the other side, and corresponding rubber gaskets are arranged between the plate, the left fluid plate, the right fluid plate and the heat exchange plate group. However, the rubber gasket structure adopted by this plate heat exchanger still has shortcomings during use. A rubber gasket is fixed on each metal sheet of the plate heat exchanger. After hot water is passed into the plate heat exchanger, the rubber gasket will continue to be affected by the high temperature, and the rubber gasket is prone to deformation, resulting in gaps between two adjacent metal sheets and liquid leakage.

[0004] Therefore, it is necessary to invent a plate heat exchanger leakage prevention structure to solve the above problems. Utility Model Content

[0005] Technical issues solved:

[0006] In view of the deficiencies in the prior art, the utility model provides a plate heat exchanger anti-leakage structure, which solves the problems mentioned in the background technology.

[0007] Technical solution:

[0008] A plate heat exchanger leakage prevention structure, comprising:

[0009] A metal sheet, wherein a sealing mechanism is provided on the metal sheet, and the sealing mechanism comprises:

[0010] A first sealing component, wherein the first sealing component is arranged on the front surface of the metal sheet, and the first sealing component comprises:

[0011] A gasket 1, wherein a convex strip 1 is disposed on one side of the gasket 1, and a first sealing strip is disposed on one side of the convex strip 1;

[0012] A second sealing component, the second sealing component is arranged on the rear surface of the metal sheet, and the second sealing component comprises:

[0013] Gasket 2, a second sealing strip is provided on one side of the gasket 2, and a groove 1 is provided between the second sealing strip and the gasket 2;

[0014] The convex strip 1 can be inserted into the concave groove 1.

[0015] Preferably, a convex strip 2 is provided on one side of the front surface of the gasket 1, a groove 2 is provided on one side of the front surface of the gasket 2, and the convex strip 2 and the groove 2 cooperate with each other.

[0016] Preferably, baffles are provided on both sides of the gasket 1, and after the gasket 1 is fixed to the front surface of the metal sheet, the baffles fit with the side walls of the metal sheet.

[0017] Preferably, positioning blocks are provided on both sides of the gasket 1, and a clamping block is provided on the positioning block. Sockets corresponding to the positioning blocks are provided on both sides of the gasket 2, and a clamping slot is provided on the socket, and the clamping block and the clamping slot are clamped and matched with each other.

[0018] Preferably, a sealing ring 1 is further provided on the convex strip 1, and a sealing ring 2 is further provided on the gasket 1, and both the sealing ring 1 and the sealing ring 2 correspond to the holes on the metal sheet.

[0019] Preferably, the four corners of the front surface of the washer 1 are provided with plug rods, and the four corners of the front surface of the washer 2 are provided with insertion holes.

[0020] In the above technical solution, the technical effects provided by the utility model are:

[0021] By setting up a sealing mechanism, the sealing mechanism consists of a first sealing component and a second sealing component. The first sealing component is arranged on the front surface of the metal sheet, and the second sealing component is arranged on the rear surface of the metal sheet. After the metal sheets of the plate heat exchanger are assembled together, the first sealing component and the second sealing component are combined together. The first sealing component and the second sealing component form a multi-layer leak-proof structure, thereby improving the sealing between two adjacent metal sheets. No deformation or gap will occur when working continuously in a high temperature and high pressure environment. The sealing reliability is high, so that the plate heat exchanger will not have leakage problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a three-dimensional stereogram of the sealing mechanism and the metal sheet of the utility model;

[0024] Figure 2 It is an exploded view of the utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the first sealing component, the second sealing component and the metal sheet of the utility model;

[0026] Figure 4 for Figure 2 Enlarged view of part A in the middle;

[0027] Figure 5 for Figure 3 Enlarged view of middle part B;

[0028] Figure 6 for Figure 3 Enlarged view of middle C;

[0029] Figure 7 This is an exploded view of the first sealing component of the utility model;

[0030] Figure 8 This is an exploded view of the second sealing component of the utility model.

[0031] Description of reference numerals:

[0032] 1. Baffle; 2. Washer 1; 3. Raised strip 1; 4. Sealing ring 1; 41. First sealing strip; 5. Metal sheet; 6. Sealing ring 2; 7. Insert rod; 8. Positioning block; 81. Card block; 9. Socket; 91. Card slot; 10. Washer 2; 101. Second sealing strip; 11. Socket; 12. Groove 1; 13. Raised strip 2; 131. Groove 2. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0034] The utility model provides Figure 1-8 A plate heat exchanger leakage prevention structure shown includes:

[0035] The metal sheet 5 is provided with a sealing mechanism, and the sealing mechanism comprises:

[0036] The first sealing component is arranged on the front surface of the metal sheet 5, and the first sealing component includes:

[0037] A gasket 2, a convex strip 3 is provided on one side of the gasket 2, and a first sealing strip 41 is provided on one side of the convex strip 3;

[0038] The second sealing component is arranged on the rear surface of the metal sheet 5, and the second sealing component includes:

[0039] The second gasket 10, a second sealing strip 101 is provided on one side of the second gasket 10, and a groove 12 is provided between the second sealing strip 101 and the second gasket 10;

[0040] The convex strip 3 can be inserted into the concave groove 12 .

[0041] In some examples, a protrusion 13 is provided on one side of the front surface of the gasket 1, and a groove 131 is provided on one side of the front surface of the gasket 10, and the protrusion 13 and the groove 131 cooperate with each other;

[0042] The second ridge 13 plays a role of secondary fastening. During the combination of two adjacent metal sheets 5, the second ridge 13 on the front surface of the first metal sheet 5 cooperates with the second groove 131 on the rear surface of the second metal sheet 5, thereby ensuring a more stable connection between the first sealing component and the second sealing component.

[0043] In some examples, baffles 1 are provided on both sides of gasket 2. After gasket 2 is fixed to the front surface of metal sheet 5, baffles 1 fit with the side walls of metal sheet 5; baffles 1 clamp the side walls of metal sheet 5, thereby ensuring that gasket 2 is aligned with the four corners of metal sheet 5 and no positional deviation occurs.

[0044] In some examples, positioning blocks 8 are further provided on both sides of the gasket 1 2, and a clamping block 81 is provided on the positioning block 8. Sockets 9 corresponding to the positioning blocks 8 are provided on both sides of the gasket 2 10, and a clamping slot 91 is provided on the socket 9, and the clamping block 81 and the clamping slot 91 are mutually engaged and matched;

[0045] During the process of installing the first sealing component on the front surface of the metal sheet 5 and the second sealing component on the rear surface of the metal sheet 5, the card block 81 on the positioning block 8 is inserted into the card slot 91 of the socket 9, and the gasket 1 2 and the gasket 2 10 are connected together.

[0046] In some examples, a sealing ring 4 is further provided on the convex strip 3, and a sealing ring 2 6 is further provided on the gasket 2, and the sealing ring 1 4 and the sealing ring 2 6 both correspond to the holes on the metal sheet 5; the sealing ring 1 4 and the sealing ring 2 6 are used to seal a group of holes on the metal sheet 5 for liquid flow to prevent hot water from mixing with cold water.

[0047] In some examples, plug rods 7 are provided at the four corners of the front surface of gasket 1 2, and insertion holes 11 are opened at the four corners of the front surface of gasket 2 10; during the assembly of two adjacent metal sheets 5, the plug rods 7 on the front surface of the first metal sheet 5 are inserted into the insertion holes 11 on the rear surface of the second metal sheet 5, and with the cooperation of the plug rods 7 and the insertion holes 11, the first metal sheet 5 and the second metal sheet 5 are bonded together, and at the same time, the first sealing component and the second sealing component are bonded to each other.

[0048] Through the above technical scheme: when in use, the gasket 2 is glued to the front surface of the metal sheet 5, the convex strip 3 is glued to the inner edge of the gasket 2, and the first sealing strip 41 is glued to the inner edge of the convex strip 3. The front surfaces of the gasket 2 and the first sealing strip 41 are in the same plane, the front surface of the convex strip 3 protrudes forward and is higher than the gasket 2 and the first sealing strip 41. The inner side of the convex strip 3 of the sealing ring 4 is provided with two groups of liquid channels on the front surface of the metal sheet 5, and each group of liquid channels is composed of two holes, which are respectively located at the top and bottom of one side of the metal sheet 5. The sealing ring 4 is fixed to the outer edge of the hole on the top side of the metal sheet 5, and the sealing ring 26 is glued to The gasket 2 10 is bonded to the outer edge of the hole on one side of the bottom end of the metal sheet 5, and the second sealing strip 101 is bonded to the inner edge of the gasket 2 10 located on the rear surface of the metal sheet 5. During the assembly process of two adjacent metal sheets 5, the rear surface of the first metal sheet 5 and the front surface of the second metal sheet 5 are bonded together. During this process, the convex strip 13 on the front surface of the second metal sheet 5 is inserted into the groove 12 on the rear surface of the first metal sheet 5. At the same time, the plug 7 is inserted into the plug hole 11. At this time, the first sealing component and the second sealing component are combined together, and a channel is formed between the first sealing component and the second sealing component, and hot water or cold water can flow in this channel.

[0049] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A plate heat exchanger anti-leakage structure, characterized in that: include: A metal sheet (5), wherein a sealing mechanism is provided on the metal sheet (5), and the sealing mechanism comprises: A first sealing component, the first sealing component is arranged on the front surface of the metal sheet (5), and the first sealing component comprises: A gasket (2), wherein a convex strip (3) is provided on one side of the gasket (2), and a first sealing strip (41) is provided on one side of the convex strip (3); A second sealing component, the second sealing component is arranged on the rear surface of the metal sheet (5), and the second sealing component comprises: Gasket 2 (10), a second sealing strip (101) is provided on one side of the gasket 2 (10), and a groove 1 (12) is provided between the second sealing strip (101) and the gasket 2 (10); The convex strip 1 (3) can be inserted into the concave groove 1 (12).

2. The plate heat exchanger leakage prevention structure according to claim 1, characterized in that: A convex strip (13) is provided on one side of the front surface of the gasket one (2), and a groove (131) is provided on one side of the front surface of the gasket two (10), wherein the convex strip (13) and the groove (131) cooperate with each other.

3. The plate heat exchanger anti-leakage structure according to claim 1, characterized in that: Baffles (1) are provided on both sides of the gasket 1 (2); after the gasket 1 (2) is fixed to the front surface of the metal sheet (5), the baffles (1) fit the side walls of the metal sheet (5).

4. The plate heat exchanger anti-leakage structure according to claim 1, characterized in that: Positioning blocks (8) are also provided on both sides of the gasket 1 (2), and a clamping block (81) is provided on the positioning block (8). Sockets (9) corresponding to the positioning blocks (8) are provided on both sides of the gasket 2 (10), and a clamping groove (91) is provided on the socket (9), and the clamping block (81) and the clamping groove (91) are mutually clamped and matched.

5. The plate heat exchanger anti-leakage structure according to claim 1, characterized in that: The convex strip one (3) is also provided with a sealing ring one (4), and the gasket one (2) is also provided with a sealing ring two (6), and the sealing ring one (4) and the sealing ring two (6) both correspond to the holes on the metal sheet (5).

6. The plate heat exchanger anti-leakage structure according to claim 1, characterized in that: Insertion rods (7) are arranged at the four corners of the front surface of the washer 1 (2), and insertion holes (11) are arranged at the four corners of the front surface of the washer 2 (10).

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