Plate heat exchanger with double-layer sealing structure

Abstract

The utility model discloses a plate heat exchanger with a double-layer sealing structure, which relates to the technical field of plate heat exchangers and comprises a mounting plate, limiting grooves are arranged at the top and the bottom of the mounting plate, fastening components are movably mounted on the inner sides of the limiting grooves, and the mounting plate is connected with clamping plates through the fastening components. A heat exchange assembly is installed between the clamping plate and the installation plate, the heat exchange assembly is used for heat conversion and comprises a plate piece, a first sealing ring is installed on the back face of the plate piece, and two sets of grooves are formed in the back face of the first sealing ring. By installing the rear grooves of the first sealing rings and the front sealing gaskets of the second sealing rings, when a plurality of groups of plates are stacked, the first sealing rings on the back surfaces of the front group of plates are connected with the second sealing rings on the front surfaces of the rear group of plates, and the rear grooves of the first sealing rings are embedded with the front sealing gaskets of the second sealing rings; and the sealing performance is improved through cooperation of the two sets of grooves and the sealing gaskets, and the leakage condition is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of plate heat exchangers, in particular to a plate heat exchanger with a double-layer sealing structure. Background Art

[0002] Plate heat exchanger is an efficient and fast heat exchange equipment, widely used in various industrial fields. Its main function is to achieve heat exchange between cold and hot fluids, increase the exchange area through heat exchange between plates, and improve the efficiency of heat exchange.

[0003] Patent document CN210570134U discloses “a plate heat exchanger, comprising a heat exchanger body, the plate heat exchanger body comprising a fixed end plate, a first movable end plate, a second movable end plate, a plurality of heat exchange plates and a bolt assembly, etc., the first movable end plate is provided with a first fluid outlet and a first heat exchange medium outlet”;

[0004] The internal sealing structure of the plate heat exchanger is relatively simple, and leakage is likely to occur during the rapid transmission of the medium, thus affecting the surrounding environment and heat exchange efficiency. Utility Model Content

[0005] The utility model aims to provide a plate heat exchanger with a double-layer sealing structure to solve the technical problem that the internal sealing structure of the plate heat exchanger in the prior art is relatively simple, which is prone to leakage during the process of rapid medium transmission, affecting the surrounding environment and heat exchange efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plate heat exchanger with a double-layer sealing structure, comprising a mounting plate, wherein limiting grooves are provided at the top and bottom of the mounting plate, a fastening assembly is movably installed on the inner side of the limiting groove, the mounting plate is connected to a clamping plate through the fastening assembly, a heat exchange assembly is installed between the clamping plate and the mounting plate, the heat exchange assembly is used for heat conversion, the heat exchange assembly comprises a plate, a first sealing ring is installed on the back side of the plate, two groups of grooves are arranged on the back side of the first sealing ring, a second sealing ring is installed on the front side of the plate, a sealing gasket is installed on the front side of the second sealing ring, and the sealing gasket is embedded in the inner side of the groove.

[0007] Preferably, a through opening is opened on the inner side of the plate, and sealing rings are installed on one side of the top and bottom of the first sealing ring and the second sealing ring, and the sealing rings are located on the outer side of the through opening.

[0008] Preferably, interception stickers are obliquely installed on the inner sides of the first sealing ring and the second sealing ring, and the interception stickers isolate the left and right groups of through-holes to prevent the left and right media from communicating with each other.

[0009] Preferably, a clamp is installed on the outer side of the plate.

[0010] Preferably, a positioning rod is installed through the inner sides of the mounting plate and the clamping plate, the positioning rod is inserted into the inner side of the clamp, and a tightening ring is movably installed on the outer side of the positioning rod, and the tightening ring is against the front side of the mounting plate.

[0011] Preferably, the fastening assembly comprises a threaded rod movably mounted on the inner side of the limiting groove, a fastening ring is mounted on the outer side of the threaded rod, and the fastening ring abuts against the outer side of the mounting plate and the clamping plate.

[0012] Preferably, four groups of transmission pipes are installed through the inner side of the mounting plate, and a flange is installed at one end of the transmission pipe.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model installs the rear groove of the first sealing ring and the front sealing gasket of the second sealing ring. When multiple groups of plates are stacked, the first sealing ring on the back of the previous group of plates is connected to the second sealing ring on the front of the rear group of plates, and the rear groove of the first sealing ring and the front sealing gasket of the second sealing ring are embedded with each other. The cooperation of the two groups of grooves and sealing gaskets improves the sealing performance and avoids leakage.

[0015] 2. The utility model is connected with an interception sticker and a sealing ring. Since the interception stickers and the sealing rings on the front and rear sets of plates are in a mirror image state, the interception stickers and the sealing rings are used to improve the interception performance and prevent leakage of the medium during transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the mounting plate structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the second sealing ring of the utility model;

[0019] Figure 4 This is a schematic diagram of the first sealing ring structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the plate structure of the utility model.

[0021] In the figure: 1. mounting plate; 2. positioning rod; 3. tightening ring; 4. plate; 5. clamp; 6. groove; 7. first sealing ring; 8. intercepting sticker; 9. through-hole; 10. sealing ring; 11. second sealing ring; 12. sealing gasket; 13. limiting groove; 14. threaded rod; 15. splint; 16. transmission pipe. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connection", "connected", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The utility model provides an embodiment: a plate heat exchanger with a double-layer sealing structure, comprising a mounting plate 1, wherein the top and bottom of the mounting plate 1 are provided with a limiting groove 13, a fastening assembly is movably installed on the inner side of the limiting groove 13, the mounting plate 1 is connected with a clamping plate 15 through the fastening assembly, a heat exchange assembly is installed between the clamping plate 15 and the mounting plate 1, and the heat exchange assembly is used for heat conversion, the heat exchange assembly comprises a plate 4, a first sealing ring 7 is installed on the back side of the plate 4, two groups of grooves 6 are arranged on the back side of the first sealing ring 7, a second sealing ring 11 is installed on the front side of the plate 4, a sealing gasket 12 is installed on the front side of the second sealing ring 11, and the sealing gasket 12 is embedded in the inner side of the groove 6, the fastening assembly comprises a threaded rod 14 movably installed on the inner side of the limiting groove 13, a fastening ring is installed on the outer side of the threaded rod 14, and the fastening ring abuts against the top and bottom of the mounting plate 1 on the outer side of the mounting plate 1 and the clamping plate 15;

[0025] The inner fastening component is limited by the limiting groove 13, and the threaded rod 14 in the fastening component is stuck in the inside of the limiting groove 13. The threaded rod 14 limits the mounting plate 1 and the clamping plate 15 through the fastening ring, which is convenient for the user to clamp the mounting plate 1 and the clamping plate 15. The mounting plate 1 and the clamping plate 15 fix the inner heat exchange component to ensure the stability of the heat exchange component. The heat exchange component is composed of multiple groups of stacked plates 4. The medium is transmitted in the plates 4. The plates 4 fix the second sealing ring 11 on the front side, and the plates 4 fix the second sealing ring 7 on the inner side. When multiple groups of plates 4 are stacked, the first sealing ring 7 on the back side of the front group of plates 4 is connected to the second sealing ring 11 on the front side of the rear group of plates 4. The groove 6 behind the first sealing ring 7 and the front sealing gasket 12 of the second sealing ring 11 are embedded with each other. The cooperation of the two groups of grooves 6 and the sealing gasket 12 improves the sealing performance to avoid leakage.

[0026] A through hole 9 is provided on the inner side of the plate 4, and a sealing ring 10 is installed on one side of the top and bottom of the first sealing ring 7 and the second sealing ring 11, and the sealing ring 10 is located on the outer side of the through hole 9. An interception sticker 8 is obliquely installed on the inner side of the first sealing ring 7 and the second sealing ring 11, and the interception sticker 8 isolates the left and right two groups of through holes 9 to prevent the left and right media from communicating with each other;

[0027] The through-port 9 is opened on the inner side of the plate 4, and the through-port 9 facilitates the transmission of the medium. The first sealing ring 7 and the second sealing ring 11 are fixedly connected with the sealing ring 10 to facilitate the transmission. The interception sticker 8 is arranged inside the first sealing ring 7 and the second sealing ring 11 to distinguish the left and right through-ports 9. Since the interception sticker 8 and the sealing ring 10 on the front and rear groups of plates 4 are in a mirror state, the interception sticker 8 and the sealing ring 10 are used to improve the interception performance and avoid leakage of the medium during the transmission process, so that the water in the front group space cannot enter the connected group of cavities, but moves to the third group of cavities. During the transmission of the medium, the heat of the high-temperature medium is transferred to the low-temperature medium through the plate 4 for heat transfer.

[0028] A clamp 5 is installed on the outer side of the plate 4, and a positioning rod 2 is installed through the inner side of the mounting plate 1 and the clamp 15. The positioning rod 2 is inserted into the inner side of the clamp 5, and a tightening ring 3 is movably installed on the outer side of the positioning rod 2. The tightening ring 3 is against the front side of the mounting plate 1. The positioning rod 2 penetrates the inner side of the mounting plate 1 and the clamp 15, and passes through the inner side of the clamp 5 at the same time to limit the clamp 5 and ensure the stability of the clamp 5, so as to facilitate the clamp 5 to fix the plate 4 and ensure the stability of the plate 4.

[0029] Four groups of transmission pipes 16 are installed through the inner side of the installation plate 1. A flange is installed at one end of the transmission pipe 16. The plate 4 fixes the transmission pipe 16 to ensure the stability of the transmission pipe 16 and facilitate water transmission.

[0030] Working principle: the plate 4 fixes the transmission pipe 16 to ensure the stability of the transmission pipe 16, facilitates the transmission of water flow, and separates the left and right through-holes 9. Since the interception stickers 8 and sealing rings 10 on the front and rear groups of plates 4 are in a mirror state, the water in the front group of spaces cannot enter the connected group of cavities, but moves to the third group of cavities. During the medium transmission process, the heat of the high-temperature medium is transferred to the low-temperature medium through the plate 4 for heat transfer.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

Claims

1. A plate heat exchanger with a double-layer sealing structure, characterized in that: The invention comprises a mounting plate (1), wherein the top and bottom of the mounting plate (1) are provided with limit grooves (13), the inner side of the limit grooves (13) is movably provided with a fastening assembly, the mounting plate (1) is connected with a clamping plate (15) via the fastening assembly, a heat exchange assembly is installed between the clamping plate (15) and the mounting plate (1), the heat exchange assembly is used for heat conversion, the heat exchange assembly comprises a plate (4), a first sealing ring (7) is installed on the back side of the plate (4), two groups of grooves (6) are arranged on the back side of the first sealing ring (7), a second sealing ring (11) is installed on the front side of the plate (4), a sealing gasket (12) is installed on the front side of the second sealing ring (11), and the sealing gasket (12) is embedded in the inner side of the groove (6).

2. The plate heat exchanger with a double-layer sealing structure according to claim 1, characterized in that: A through opening (9) is provided on the inner side of the plate (4), and sealing rings (10) are installed on one side of the top and bottom of the first sealing ring (7) and the second sealing ring (11), and the sealing rings (10) are located on the outer side of the through opening (9).

3. The plate heat exchanger with a double-layer sealing structure according to claim 1, characterized in that: Interceptor stickers (8) are obliquely installed on the inner sides of the first sealing ring (7) and the second sealing ring (11), and the interceptor stickers (8) isolate the left and right groups of through-holes (9) to prevent the left and right media from communicating with each other.

4. The plate heat exchanger with a double-layer sealing structure according to claim 1, characterized in that: A clamping piece (5) is installed on the outer side of the plate (4).

5. The plate heat exchanger with a double-layer sealing structure according to claim 1, characterized in that: A positioning rod (2) is installed through the inner side of the mounting plate (1) and the clamping plate (15), the positioning rod (2) is inserted into the inner side of the clamp (5), and a tightening ring (3) is movably installed on the outer side of the positioning rod (2), and the tightening ring (3) is against the front side of the mounting plate (1).

6. The plate heat exchanger with a double-layer sealing structure according to claim 1, characterized in that: The fastening assembly comprises a threaded rod (14) movably mounted inside the limiting groove (13), a fastening ring is mounted outside the threaded rod (14), and the fastening ring abuts against the outside of the mounting plate (1) and the clamping plate (15).

7. The plate heat exchanger with a double-layer sealing structure according to claim 1, characterized in that: Four groups of transmission pipes (16) are installed through the inner side of the installation plate (1), and a flange is installed at one end of the transmission pipe (16).

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