Self-supporting high-pressure-bearing plate heat exchanger for pressure separation station

Abstract

The invention discloses a self-supporting high-pressure-bearing plate heat exchanger for a pressure isolation station, and relates to the technical field of plate heat exchangers. According to the self-supporting high-pressure-bearing plate type heat exchanger for the pressure isolation station, through cooperation of the movable sealing plates and the end sealing plates, after heat exchange fins are placed in the machine body, packaging operation can be completed through operation of the movable sealing plates, the heat exchange fins can be disassembled and assembled conveniently, and the maintenance convenience of equipment is improved; and meanwhile, through cooperation of the sealing filler strips and the extending edge strips, the extending edge strips can be tightly attached to the inner wall of the heat exchange cavity along with circulation of cold and hot flow in the heat exchange cavity during operation, the sealing performance between the heat exchange fins is guaranteed, and the pressure bearing effect of equipment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of plate heat exchangers, and particularly to a self-supporting high-pressure-bearing plate heat exchanger for a pressure isolation station. Background Art

[0002] A plate heat exchanger is a highly efficient heat exchanger formed by stacking a series of metal sheets with a certain corrugated shape; thin rectangular channels are formed between various plates, and heat exchange is carried out through the plates. A plate heat exchanger is an ideal device for liquid-liquid and liquid-vapor heat exchange; it has the characteristics of high heat exchange efficiency, small heat loss, compact and lightweight structure, small floor area, wide application, long service life, etc. Under the same pressure loss condition, its heat transfer coefficient is 3-5 times higher than that of a tubular heat exchanger, the floor area is one-third of that of a tubular heat exchanger, and the heat recovery rate can be as high as more than 90%. Referring to the Chinese patent with the publication number "CN117739720B", namely "A plate heat exchanger for heating", this patent points out that the existing plate heat exchanger is not convenient for disassembly during maintenance, and after loosening, the heat transfer plates will also become loose, and at this time, it is easy to affect the plates that were previously problem-free, resulting in new problems and being unable to fix the plates that are problem-free; however, this device still has problems in terms of maintenance convenience and pressure-bearing effect. For this reason, we propose a self-supporting high-pressure-bearing plate heat exchanger for a pressure isolation station to solve the above problems. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the present invention provides a self-supporting high-pressure-bearing plate heat exchanger for a pressure isolation station, which solves the problems raised in the above background art.

[0004] To achieve the above purposes, the present invention is realized through the following technical solutions: A self-supporting high-pressure-bearing plate heat exchanger for a pressure isolation station, including a machine body, an end sealing plate is fixedly installed inside the machine body, a plurality of through holes are opened inside the end sealing plate, and flange connecting pipes are fixedly installed on the outer sides of the through holes. The plurality of flange connecting pipes are respectively used for carrying out the conveying operations of cold and hot fluids;

[0005] A movable sealing plate is slidably connected inside the machine body, and a plurality of heat exchange fins are installed between the movable sealing plate and the end sealing plate. A heat exchange cavity is provided inside the heat exchange fins for carrying out heat exchange operations on the conveyed cold and hot fluids;

[0006] A driving component is provided on the outer side of the movable sealing plate. The driving component is used to drive the movable sealing plate to operate and lock the heat exchange fins. The driving component includes a transmission pressure plate which is located on the outer side of the movable sealing plate. A plurality of transmission push rods are fixedly installed on the side of the transmission pressure plate close to the movable sealing plate. The plurality of transmission push rods are respectively fixedly connected to the four sides of the movable sealing plate. A driving hydraulic cylinder is fixedly installed inside the machine body, and a positioning pressure plate is fixedly installed at the piston end of the driving hydraulic cylinder. The positioning pressure plate is fixedly installed on the outer side of the transmission pressure plate.

[0007] Preferably, the plurality of transmission push rods are all inclined and symmetrically distributed on the outer side of the movable sealing plate.

[0008] Preferably, limiting notch openings are symmetrically provided on the upper and lower sides of the plurality of heat exchange fins, and the heat exchange fins are slidably connected to the machine body through the limiting notch openings. Sealing gasket strips are fixedly installed on the outer sides of the plurality of heat exchange fins. Liquid guiding through holes adapted to the flange connecting pipes are provided inside the plurality of heat exchange fins for guiding cold and hot fluids into corresponding heat exchange chambers.

[0009] Preferably, a rectangular cavity is provided inside the sealing gasket strip, and extension edge strips are fixedly installed on both sides of the sealing gasket strip.

[0010] Preferably, an arc surface is provided at the end of the extension edge strip, and a plurality of ventilation notch openings are symmetrically provided between the rectangular cavity and the inside of the extension edge strip.

[0011] Preferably, rectangular notch openings are provided on the upper and lower sides of the movable sealing plate. The rectangular notch openings are slidably connected to the machine body. Inner roller frames are rotatably installed inside the rectangular notch openings. The inner roller frames are in mutual contact with the inner side of the machine body and can roll along the inner side of the machine body.

[0012] Preferably, a positioning plate is fixedly installed on the outer side of the movable sealing plate, and a limiting roller frame is rotatably installed inside the positioning plate. The limiting roller frame is in mutual contact with the outer side of the machine body.

[0013] Preferably, side strengthening plates are fixedly installed on both sides of the machine body. The ends of the side strengthening plates are right-angled and extend to the end sealing plates. The right-angled ends of the side strengthening plates are in mutual contact with the end sealing plates.

[0014] Preferably, limiting sliding grooves are provided inside the side strengthening plates. Positioning screw rods are installed on both sides of the movable sealing plate. The positioning screw rods are located inside the limiting sliding grooves for locking between the side strengthening plates and the movable sealing plate and between the movable sealing plate and the machine body.

[0015] Preferably, the two side strengthening plates are symmetrical to each other.

[0016] The present invention provides a self - supporting high - load plate heat exchanger for a pressure - isolating station. Compared with the prior art, it has the following beneficial effects:

[0017] (1) For the self - supporting high - load plate heat exchanger for the pressure - isolating station, through the cooperation of the movable seal plate and the end seal plate, after the heat - exchange fins are placed inside the body, the encapsulation operation can be completed by the operation of the movable seal plate, which is convenient for disassembling and assembling the heat - exchange fins, improving the maintenance convenience of the equipment. At the same time, through the cooperation of the sealing gasket strip and the extension strip, during operation, as the cold and hot fluids flow inside the heat - exchange cavity, the extension strip can be closely attached to the inner wall of the heat - exchange cavity, ensuring the sealing performance between the heat - exchange fins and improving the pressure - bearing effect of the equipment.

[0018] (2) For the self - supporting high - load plate heat exchanger for the pressure - isolating station, through the setting of the side strengthening plate, the connection strength between the movable seal plate and the end seal plate can be effectively improved, ensuring the sealing performance of the internal heat - exchange fins and the internal pressure - bearing strength. At the same time, the movable seal plate and the body can be locked through the positioning screws on both sides, improving the maintenance convenience of the equipment while ensuring the operation safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 is a schematic diagram of the structure of the movable seal plate and the end seal plate of the present invention;

[0021] Figure 3 is of the present invention Figure 2 front - view structural schematic diagram;

[0022] Figure 4 is a schematic diagram of the structure of the heat - exchange fins of the present invention;

[0023] Figure 5 is a schematic cross - sectional view of the sealing gasket strip of the present invention;

[0024] Figure 6 is a schematic diagram of the structure of the driving pressure plate and the movable seal plate of the present invention;

[0025] Figure 7 is a schematic diagram of the structure of the movable seal plate and the side strengthening plate of the present invention;

[0026] Figure 8 is of the present invention Figure 7 enlarged structural schematic diagram at position A in

[0027] In the figure: 1, body; 2, end sealing plate; 3, flange connecting pipe; 4, movable sealing plate; 401, rectangular notch; 402, positioning plate; 5, heat exchange fin; 501, limit notch; 502, liquid guiding through hole; 503, heat exchange cavity; 6, driving hydraulic cylinder; 7, side reinforcing plate; 701, limit sliding groove; 8, positioning screw; 9, transmission pressure plate; 901, transmission push rod; 902, positioning pressure plate; 10, sealing gasket strip; 1001, rectangular cavity; 1002, extending edge strip; 1003, arc surface; 1004, ventilation notch; 11, limit roller frame; 12, inner roller frame. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figures 1 - 8 , the present invention provides two technical solutions, specifically including the following embodiments:

[0030] Embodiment 1:

[0031] In the embodiment of the present invention, referring to Figures 1 - 8 , a self-supporting high-bearing plate type heat exchanger for a pressure-separating station includes a body 1. An end sealing plate 2 is fixedly installed inside the body 1. A plurality of through holes are formed inside the end sealing plate 2, and flange connecting pipes 3 are fixedly installed on the outer sides of the through holes. The plurality of flange connecting pipes 3 are respectively used for carrying out the conveying operations of cold and hot fluids. During the operation, by connecting the flange connecting pipes 3 to the cold and hot fluid conveying pipes, the cold and hot fluids can be conveyed into the body 1 to realize heat exchange;

[0032] In the embodiment of the present invention, further, a movable sealing plate 4 is slidably connected inside the body 1, and a plurality of heat exchange fins 5 are installed between the movable sealing plate 4 and the end sealing plate 2. A heat exchange cavity 503 is provided inside the heat exchange fins 5 for carrying out heat exchange operations on the conveyed cold and hot fluids. When the cold and hot fluids respectively enter the heat exchange cavity 503 through the corresponding flange connecting pipes 3 and then are discharged through the corresponding flange connecting pipes 3, the cold and hot fluids complete the heat exchange operation. At the same time, with the cooperation of the movable sealing plate 4, it is convenient to assemble the equipment and also convenient to maintain and replace the heat exchange fins 5;

[0033] In an embodiment of the present invention, further, a driving component is provided outside the movable sealing plate 4. The driving component is used to drive the movable sealing plate 4 to operate and lock the heat exchange fins 5. The driving component includes a transmission pressing plate 9. The transmission pressing plate 9 is located outside the movable sealing plate 4. A plurality of transmission push rods 901 are fixedly installed on the side of the transmission pressing plate 9 close to the movable sealing plate 4. The plurality of transmission push rods 901 are respectively fixedly connected to the four sides of the movable sealing plate 4. A driving hydraulic cylinder 6 is fixedly installed inside the machine body 1. A positioning pressing plate 902 is fixedly installed at the piston end of the driving hydraulic cylinder 6. The positioning pressing plate 902 is fixedly installed outside the transmission pressing plate 9;

[0034] In an embodiment of the present invention, specifically, when assembling the equipment, a plurality of heat exchange fins 5 can be sequentially placed inside the machine body 1. After the heat exchange fins 5 are placed, through the cooperation of the driving hydraulic cylinder 6, the transmission pressing plate 9 can be driven to move, and the movable sealing plate 4 can be pushed to operate through the plurality of transmission push rods 901 until the plurality of heat exchange fins 5 are pressed against the end sealing plate 2. On the one hand, through the pushing of the plurality of transmission push rods 901, the stress effect of the movable sealing plate 4 and the heat exchange fins 5 can be ensured, and at the same time, the sealing performance of the heat exchange fins 5 can be ensured, and the internal pressure resistance can be ensured;

[0035] In an embodiment of the present invention, specifically, the plurality of transmission push rods 901 are all inclinedly installed, and the plurality of transmission push rods 901 are symmetrically distributed outside the movable sealing plate 4. Through the arrangement of the plurality of transmission push rods 901, the movable sealing plate 4 can be more evenly stressed during driving, and when the heat exchange fins 5 are locked, the support outside the movable sealing plate 4 can be completed, further improving the use effect of the equipment;

[0036] In an embodiment of the present invention, further, limiting notch openings 501 are symmetrically opened on both the upper and lower sides of the plurality of heat exchange fins 5, and the heat exchange fins 5 are slidably connected to the machine body 1 through the limiting notch openings 501. Sealing gasket strips 10 are fixedly installed on the outer sides of the plurality of heat exchange fins 5. Liquid guiding through holes 502 adapted to the flange connecting pipes 3 are opened inside the plurality of heat exchange fins 5 for guiding cold and hot fluids into the corresponding heat exchange chambers 503. Through the arrangement of the sealing gasket strips 10, the sealing performance inside the equipment can be ensured;

[0037] In an embodiment of the present invention, specifically, when the heat exchange fins 5 are pressed and move towards the end sealing plate 2, the plurality of sealing gasket strips 10 can be stressed to contact the heat exchange fins 5 to complete the sealing treatment of the heat exchange fins 5;

[0038] In an embodiment of the present invention, specifically, rectangular notches 401 are formed on both the upper and lower sides of the movable sealing plate 4. The rectangular notches 401 are slidably connected to the machine body 1. An inner roller frame 12 is rotatably installed inside the rectangular notch 401. The inner roller frame 12 is in close contact with the inner side of the machine body 1 and can roll along the inner side of the machine body 1. A positioning plate 402 is fixedly installed on the outer side of the movable sealing plate 4, and a limiting roller frame 11 is rotatably installed inside the positioning plate 402. The limiting roller frame 11 is in close contact with the outer side of the machine body 1.

[0039] In an embodiment of the present invention, specifically, through the cooperation of the inner roller frame 12 and the limiting roller frame 11, the limiting operation of the movable sealing plate 4 can be completed, ensuring the running stability of the movable sealing plate 4.

[0040] Embodiment Two: Based on Embodiment One, refer to Figures 1 - 8 , a self-supporting high-load pressing plate heat exchanger for a pressure isolation station, including a machine body 1. An end sealing plate 2 is fixedly installed inside the machine body 1. A plurality of through holes are formed inside the end sealing plate 2, and flange connecting pipes 3 are fixedly installed on the outer sides of the through holes. The plurality of flange connecting pipes 3 are respectively used for the conveying operation of cold and hot fluids. During operation, by connecting the flange connecting pipes 3 to the cold and hot fluid conveying pipes, the cold and hot fluids can be conveyed into the machine body 1 to achieve heat exchange.

[0041] In an embodiment of the present invention, further, a movable sealing plate 4 is slidably connected inside the machine body 1. A plurality of heat exchange fins 5 are installed between the movable sealing plate 4 and the end sealing plate 2. A heat exchange cavity 503 is provided inside the heat exchange fins 5 for heat exchange of the conveyed cold and hot fluids. When the cold and hot fluids respectively enter the heat exchange cavity 503 through the corresponding flange connecting pipes 3 and then are discharged through the corresponding flange connecting pipes 3, the cold and hot fluids complete the heat exchange operation. At the same time, with the cooperation of the movable sealing plate 4, it is convenient to assemble the equipment and convenient to maintain and replace the heat exchange fins 5.

[0042] In an embodiment of the present invention, further, a driving assembly is provided on the outer side of the movable sealing plate 4. The driving assembly is used to drive the movable sealing plate 4 to operate and lock the heat exchange fins 5. The driving assembly includes a transmission pressing plate 9. The transmission pressing plate 9 is located on the outer side of the movable sealing plate 4. A plurality of transmission push rods 901 are fixedly installed on the side of the transmission pressing plate 9 close to the movable sealing plate 4. The plurality of transmission push rods 901 are respectively fixedly connected to the four sides of the movable sealing plate 4. A driving hydraulic cylinder 6 is fixedly installed inside the machine body 1. A positioning pressing plate 902 is fixedly installed at the piston end of the driving hydraulic cylinder 6. The positioning pressing plate 902 is fixedly installed on the outer side of the transmission pressing plate 9.

[0043] In an embodiment of the present invention, specifically, when assembling the device, multiple heat exchange fins 5 can be sequentially placed inside the machine body 1. After the placement of the heat exchange fins 5 is completed, through the cooperation of the driving hydraulic cylinder 6, the transmission pressing plate 9 can be driven to move, and multiple transmission push rods 901 can be used to push the movable sealing plate 4 to operate until the multiple heat exchange fins 5 are pressed against the end sealing plate 2. On the one hand, through the pushing of the multiple transmission push rods 901, the force-receiving effect of the movable sealing plate 4 and the heat exchange fins 5 can be ensured, and at the same time, the sealing performance of the heat exchange fins 5 can be ensured to guarantee the internal pressure-bearing strength;

[0044] In an embodiment of the present invention, specifically, the multiple transmission push rods 901 are all inclinedly installed, and the multiple transmission push rods 901 are symmetrically distributed outside the movable sealing plate 4. Through the arrangement of the multiple transmission push rods 901, the force on the movable sealing plate 4 can be made more uniform during the driving process, and when locking the heat exchange fins 5, the support outside the movable sealing plate 4 can be completed, further improving the use effect of the device;

[0045] In an embodiment of the present invention, further, limiting notch openings 501 are symmetrically opened on both the upper and lower sides of the multiple heat exchange fins 5, and the heat exchange fins 5 are slidably connected to the machine body 1 through the limiting notch openings 501. Sealing gasket strips 10 are fixedly installed on the outer sides of the multiple heat exchange fins 5. Liquid guiding through holes 502 adapted to the flange connecting pipes 3 are opened inside the multiple heat exchange fins 5 for guiding cold and hot fluids into the corresponding heat exchange cavities 503. Through the arrangement of the sealing gasket strips 10, the sealing performance inside the device can be ensured;

[0046] In an embodiment of the present invention, further, a rectangular cavity 1001 is opened inside the sealing gasket strip 10, and extension edge strips 1002 are fixedly installed on both sides of the sealing gasket strip 10; an arc surface 1003 is opened at the end of the extension edge strip 1002, and multiple ventilation notch openings 1004 are symmetrically opened between the rectangular cavity 1001 and the inside of the extension edge strip 1002;

[0047] In an embodiment of the present invention, specifically, when the heat exchange fins 5 are pressed and move towards the end sealing plate 2, the multiple sealing gasket strips 10 can be forced to contact the heat exchange fins 5 to complete the sealing treatment of the heat exchange fins 5. As the sealing gasket strips 10 are compressed and deformed, the air inside the rectangular cavity 1001 can be squeezed through the multiple ventilation notch openings 1004 to the extension edge strip 1002, so that the extension edge strip 1002 can be attached to the inner wall of the heat exchange cavity 503. Through the arc surface 1003 opened at the end of the extension edge strip 1002, on the one hand, it can avoid affecting the transportation of internal cold and hot fluids, and at the same time, it can further improve the sealing performance of the device;

[0048] In the embodiment of the present invention, specifically, rectangular notches 401 are provided on both the upper and lower sides of the movable sealing plate 4. The rectangular notches 401 are slidably connected to the machine body 1. An inner roller frame 12 is rotatably installed inside the rectangular notches 401. The inner roller frame 12 is in close contact with the inner side of the machine body 1 and can roll along the inner side of the machine body 1. A positioning plate 402 is fixedly installed on the outer side of the movable sealing plate 4, and a limiting roller frame 11 is rotatably installed inside the positioning plate 402. The limiting roller frame 11 is in close contact with the outer side of the machine body 1.

[0049] In the embodiment of the present invention, specifically, through the cooperation of the inner roller frame 12 and the limiting roller frame 11, the limiting operation of the movable sealing plate 4 can be completed, ensuring the running stability of the movable sealing plate 4.

[0050] In the embodiment of the present invention, further, side strengthening plates 7 are fixedly installed on both sides of the machine body 1. The end of the side strengthening plate 7 is in a right-angled shape and extends to the end sealing plate 2. The right-angled end of the side strengthening plate 7 is in close contact with the end sealing plate 2. A limiting chute 701 is provided inside the side strengthening plate 7. Positioning screws 8 are installed on both sides of the movable sealing plate 4. The positioning screws 8 are located inside the limiting chute 701 and are used to lock the side strengthening plate 7 and the movable sealing plate 4 as well as the movable sealing plate 4 and the machine body 1. The two side strengthening plates 7 are symmetrical to each other.

[0051] In the embodiment of the present invention, specifically, through the setting of the side strengthening plate 7, the connection strength between the movable sealing plate 4 and the end sealing plate 2 can be effectively improved, ensuring the sealing performance and internal strength of the internal heat exchange fins 5. At the same time, the movable sealing plate 4 and the machine body 1 can be locked through the positioning screws 8 on both sides, improving the maintenance convenience while ensuring the operation safety.

[0052] At the same time, the content not described in detail in this specification belongs to the prior art well known to those skilled in the art.

[0053] The above has described in detail one embodiment of the present invention, but the content described is only the preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the present invention.

Claims

1. A self-supporting high-pressure plate heat exchanger for a pressure isolation station, comprising a body (1), characterized in that: An end sealing plate (2) is fixedly installed inside the machine body (1), a plurality of through holes are opened inside the end sealing plate (2), and flange connection pipes (3) are fixedly installed outside the through holes, and the plurality of flange connection pipes (3) are respectively used for conveying cold and hot flows; The body (1) is slidably connected to a movable sealing plate (4), and a plurality of heat exchange fins (5) are installed between the movable sealing plate (4) and the end sealing plate (2), and a heat exchange cavity (503) is reserved inside the heat exchange fins (5) for performing heat exchange operations on the transported cold and hot flows; A driving assembly is provided on the outside of the movable sealing plate (4), and the driving assembly is used to drive the movable sealing plate (4) to operate and lock the heat exchange fins (5). The driving assembly includes a transmission pressure plate (9), and the transmission pressure plate (9) is located on the outside of the movable sealing plate (4). A plurality of transmission push rods (901) are fixedly installed on the side of the transmission pressure plate (9) close to the movable sealing plate (4), and the plurality of transmission push rods (901) are respectively fixedly connected to the four sides of the movable sealing plate (4). A driving hydraulic cylinder (6) is fixedly installed inside the body (1), and a positioning pressure plate (902) is fixedly installed on the piston end of the driving hydraulic cylinder (6), and the positioning pressure plate (902) is fixedly rotated on the outside of the transmission pressure plate (9).

2. A self-supporting high-pressure plate heat exchanger for a pressure isolation station according to claim 1, characterized in that: The plurality of transmission push rods (901) are all installed at an angle, and the plurality of transmission push rods (901) are symmetrically distributed on the outer side of the movable sealing plate (4).

3. The self-supporting high-pressure plate heat exchanger for a pressure isolation station according to claim 1, characterized in that: The upper and lower sides of the plurality of heat exchange fins (5) are symmetrically provided with limit slots (501), and the fins are slidably connected to the machine body (1) through the limit slots (501); the outer sides of the plurality of heat exchange fins (5) are fixedly installed with sealing gaskets (10); the interiors of the plurality of heat exchange fins (5) are provided with liquid guide holes (502) adapted to the flange connection pipes (3) for guiding the cold and hot flows into the corresponding heat exchange chambers (503).

4. A self-supporting high pressure plate heat exchanger for a pressure isolation station according to claim 3, characterized in that: A rectangular cavity (1001) is provided inside the sealing gasket strip (10), and extension side strips (1002) are fixedly mounted on both sides of the sealing gasket strip (10).

5. A self-supporting high pressure plate heat exchanger for a pressure isolation station according to claim 4, characterized in that: An arc-shaped surface (1003) is provided at the end of the extended edge strip (1002), and a plurality of ventilation slots (1004) are symmetrically provided between the rectangular cavity (1001) and the interior of the extended edge strip (1002).

6. The self-supporting high-pressure plate heat exchanger for a pressure isolation station according to claim 1, characterized in that: The upper and lower sides of the movable sealing plate (4) are both provided with rectangular slots (401), the rectangular slots (401) are slidably connected to the machine body (1), an inner roller frame (12) is rotatably installed inside the rectangular slot (401), the inner roller frame (12) is in contact with the inner side of the machine body (1) and can roll along the inner side of the machine body (1).

7. The self-supporting high-pressure plate heat exchanger for a pressure isolation station according to claim 5, characterized in that: A positioning plate (402) is fixedly mounted on the outer side of the movable sealing plate (4), and a limiting roller frame (11) is rotatably mounted inside the positioning plate (402), wherein the limiting roller frame (11) is in contact with the outer side of the machine body (1).

8. The self-supporting high-pressure plate heat exchanger for a pressure isolation station according to claim 1, characterized in that: Side reinforcing plates (7) are fixedly mounted on both sides of the machine body (1); the ends of the side reinforcing plates (7) are right-angled and extend to the end sealing plate (2); and one end of the side reinforcing plates (7) that is right-angled fits the end sealing plate (2).

9. A self-supporting high pressure plate heat exchanger for a pressure isolation station according to claim 8, characterized in that: A limiting slide groove (701) is provided inside the side reinforcing plate (7), and positioning screws (8) are installed on both sides of the movable sealing plate (4). The positioning screws (8) are located inside the limiting slide groove (701) and are used to lock the side reinforcing plate (7) and the movable sealing plate (4) and the movable sealing plate (4) and the machine body (1).

10. The self-supporting high-pressure plate heat exchanger for a pressure isolation station according to claim 8, characterized in that: The side reinforcement plates (7) on both sides are symmetrical to each other.

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