Improved structure of plate heat exchanger plate

Abstract

The utility model discloses an improved structure of a plate heat exchanger plate, which relates to the technical field of heat exchangers and comprises a plate body and a communicating pipe, a communicating groove is arranged on the plate body, a square groove is arranged on the periphery of the outside of the plate body, a plurality of heat exchange grooves are arranged on the side wall of the square groove, and the communicating pipe is communicated with the communicating groove. A communicating pipe is arranged in the communicating groove, a plurality of through holes communicating with the square groove are formed in the communicating pipe, a mounting hole is formed in the communicating groove, a fixing pin is arranged in the mounting hole, and one end of the fixing pin penetrates into the communicating pipe; the two plate sheet bodies are connected through the clamping blocks and the clamping grooves, follow-up disassembly and replacement are facilitated, the multiple fixing pins in the communicating grooves can fix the communicating pipes, the fixing pins are pressed into the mounting holes, then the communicating pipes can be taken down, rapid replacement of medium inlet and outlet pipelines is achieved, and the plate sheet mounting and replacing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to an improved structure of a plate of a plate heat exchanger. Background Art

[0002] A plate heat exchanger is an efficient heat exchanger composed of a series of metal sheets with specific corrugated shapes. Heat exchange is carried out through the thin rectangular channels between the metal sheets, so that the cold and hot fluids flow in their respective channels, and heat transfer is achieved through the plates. The plates are metal sheets with a certain corrugated shape and are the main components for heat exchange. Dense heat exchange channels are formed between the plates, making the heat exchanger smaller in volume and lighter in weight under the same heat exchange area.

[0003] The structure of the existing plate of a plate heat exchanger is relatively simple. The medium inlet and outlet pipes on the plate are usually fixedly arranged, and the pipes cannot be disassembled and replaced. A plurality of plates are installed inside the plate heat exchanger. When one of the plates is damaged, it is rather troublesome to disassemble the plate, and quick disassembly of the plate cannot be achieved, which affects the normal use of the plate heat exchanger. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an improved structure of a plate of a plate heat exchanger to solve the problems put forward in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An improved structure of a plate of a plate heat exchanger, including a plate body, further comprising:

[0007] A communicating pipe. A communicating groove is formed on the plate body. Square grooves are formed around the outside of the plate body. A plurality of heat exchange grooves are formed on the side walls of the square grooves. The communicating pipe is arranged inside the communicating groove. A plurality of through holes communicating with the square grooves are formed on the communicating pipe. An installation hole is formed inside the communicating groove. A fixing pin is arranged inside the installation hole. One end of the fixing pin penetrates into the inside of the communicating pipe;

[0008] A clamping block. Installation grooves and fixing grooves are respectively formed on one side of two adjacent plate bodies. A fixing rod is fixedly arranged inside the installation groove. A movable block is slidably arranged on the fixing rod. Clamping blocks are arranged on both of the movable blocks. A clamping groove matching with the clamping block is formed inside the fixing groove. A plurality of positioning holes are formed on the side wall of the plate body. A positioning rod matching with the positioning hole is arranged on the other plate body;

[0009] A fixing mechanism, which is connected with the plate body and fixedly connects the two plate bodies by driving the clamping block to penetrate into the clamping groove.

[0010] Based on the above technical solutions, the present utility model further provides the following optional technical solutions:

[0011] In an optional solution: The fixing mechanism includes a screw, a pressing block, a rotating plate and a connecting block. Rotating plates are provided on the sides of the two movable blocks close to each other. One end of the rotating plate is provided with a rotating shaft, and the rotating plate is rotatably connected to the connecting block through the rotating shaft. A screw is arranged inside the fixing groove, and one end of the screw is provided with a pressing block that cooperates with the connecting block.

[0012] In an optional solution: A square hole is formed in the movable block, and one end of the rotating plate penetrates into the square hole and is rotatably connected to the movable block.

[0013] In an optional solution: A telescopic spring is arranged inside the mounting hole, and one end of the telescopic spring is connected to the fixing pin.

[0014] In an optional solution: Return springs are sleeved on both ends of the fixing rod, and one end of each return spring is connected to the movable block.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] The improved structure of the plate of the plate heat exchanger consists of a plate body and a plurality of detachable connecting pipes. The heat exchange medium flows along the connecting pipes and flows into the heat exchange tank for heat exchange. The two plate bodies are connected by clamping blocks and clamping grooves, which is convenient for subsequent disassembly and replacement. The plurality of fixing pins inside the connecting groove can fix the connecting pipes. By pressing the fixing pins into the mounting holes, the connecting pipes can be removed, realizing the quick replacement of the medium inlet and outlet pipes, improving the installation and replacement efficiency of the plates, and making the operation and maintenance of the plate heat exchanger more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the improved structure of the plate of the plate heat exchanger.

[0018] Figure 2 It is a cross-sectional view of the plate body in the improved structure of the plate of the plate heat exchanger.

[0019] Figure 3 It is a schematic structural diagram of the fixing pin in the improved structure of the plate of the plate heat exchanger.

[0020] Annotation of reference numerals: 1 - body, 2 - square groove, 3 - connecting pipe, 4 - through hole, 5 - heat exchange groove, 6 - mounting groove, 7 - fixing groove, 8 - pressing block, 9 - positioning rod, 10 - positioning hole, 11 - connecting groove, 12 - fixing rod, 13 - return spring, 14 - movable block, 15 - clamping block, 16 - rotating plate, 17 - connecting block, 18 - clamping groove, 19 - rotating shaft, 20 - square hole, 21 - mounting hole, 22 - fixing pin, 23 - telescopic spring, 24 - screw. Detailed implementation mode

[0021] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with the drawings and embodiments; in the drawings or descriptions, similar or identical parts use the same reference numerals, and in actual applications, the shapes, thicknesses or heights of each component can be enlarged or reduced. Each embodiment listed in the present utility model is only used to illustrate the present utility model, and is not used to limit the scope of the present utility model. Any obvious modification or change made to the present utility model does not depart from the spirit and scope of the present utility model.

[0022] In one embodiment, as Figures 1-3 shown, an improved structure of a plate of a plate heat exchanger includes a plate body 1, and further includes:

[0023] A connecting pipe 3, a connecting groove 11 is provided outside the plate body 1, the connecting groove 11 is a circular groove, a square groove 2 is provided around the outside of the plate body 1, a plurality of heat exchange grooves 5 are obliquely provided on the side wall of the square groove 2, a connecting pipe 3 is arranged inside the connecting groove 11, and a plurality of through holes 4 communicating with the square groove 11 are provided on the connecting pipe 3. The heat exchange medium flows into the square groove 2 along the through holes 4 on the connecting pipe 3 and flows into the heat exchange groove 5 along the square groove 2 for heat exchange. A sealing gasket is arranged inside the square groove 2, which ensures the sealing performance of the medium during flow and can also guide the flow direction of the medium. An installation hole 21 is provided inside the connecting groove 11, a fixing pin 22 is slidably arranged inside the installation hole 21, one end of the fixing pin 22 penetrates into the connecting pipe 3, and a semi-circular hole matching with the fixing pin 22 is provided on the outer side wall of the connecting pipe 3. By pressing the connecting pipe 3, the connecting pipe 3 can be removed from the connecting groove 11, which is convenient for replacing the connecting pipe 3;

[0024] The clamping block 15, on one side where the two plate body 1 are close to each other, an installation groove 6 and a fixing groove 7 are respectively opened. A fixing rod 12 is fixedly arranged inside the installation groove 6. A movable block 14 is slidably arranged on the fixing rod 12. The clamping blocks 15 are fixedly arranged on the two movable blocks 14. A clamping groove 18 which is matched with the clamping block 15 is opened inside the fixing groove 7. The two plate bodies 1 are mutually attached. The clamping block 15 penetrates into the inside of the clamping groove 18, and the butt joint of the two plate bodies 1 can be realized. A plurality of positioning holes 10 are opened on the side wall of the plate body 1. A positioning rod 9 which is matched with the positioning hole 10 is arranged on the other plate body 1. The positioning rod 9 penetrates into the fixing hole 10, and the butt joint of the plate body 1 can be positioned;

[0025] The fixing mechanism is connected with the plate body 1 and fixedly connects the two plate bodies 1 by driving the clamping block 15 to penetrate into the clamping groove 18.

[0026] The improved structure of the plate of the plate heat exchanger is composed of the plate body 1 and a plurality of detachable connecting pipes 3. The heat exchange medium flows along the connecting pipe 3. The medium flows into the heat exchange groove 5 for heat exchange. The two plate bodies 1 are connected by the clamping block 15 and the clamping groove 18, which is convenient for subsequent disassembly and replacement. A plurality of fixing pins 22 inside the communication groove 11 can fix the connecting pipe 3. Press the connecting pipe 3 outwards and press the fixing pin 22 into the installation hole 21, and the connecting pipe 3 can be removed, realizing the quick replacement of the medium inlet and outlet pipelines. As an embodiment, the left - right, up - down positions of the various components given in the attached drawings are only a layout method, and the specific positions are set according to specific needs.

[0027] In one embodiment, as Figures 1-2 shown, the fixing mechanism includes a screw rod 24, a pressing block 8, a rotating plate 16 and a connecting block 17. Rotating plates 16 are rotatably arranged on one side where the two movable blocks 14 are close to each other. One end of the rotating plate 16 is provided with a rotating shaft 19. The rotating plate 16 is rotatably connected with the connecting block 17 through the rotating shaft 19. A screw rod 24 is arranged inside the fixing groove 7. One end of the screw rod 24 is provided with a pressing block 8 which is matched with the connecting block 17. Turning the screw rod 24 can drive the pressing block 8 to move left and right. The pressing block 8 squeezes the connecting block 17 to move. The connecting block 17 drives the two movable blocks 14 to move away from each other through the rotating plate 16. The movable block 14 drives the clamping block 15 to penetrate into the inside of the clamping groove 18.

[0028] In one embodiment, as Figures 1-2 shown, a square hole 20 is opened on the movable block 14. One end of the rotating plate 16 penetrates into the inside of the square hole 20 and is rotatably connected with the movable block 14.

[0029] In one embodiment, as Figures 1-3As shown, a telescopic spring 23 is arranged inside the mounting hole 21. One end of the telescopic spring 23 is connected to the fixing pin 22. The fixing pin 22 is elastically mounted on the plate body 1 through the telescopic spring 23. The connecting pipe 3 slides into the inside of the connecting groove 11, the fixing pin 22 is pressed into the inside of the mounting hole 21, and the telescopic spring 23 drives the fixing pin 22 to reset outward, so that the fixing pin 22 penetrates into the semi-circular hole again, and then the connecting pipe 3 can be fixed.

[0030] In one embodiment, as Figures 1-2 shown, reset springs 13 are sleeved at both ends of the fixing rod 12, and one end of each reset spring 13 is connected to the movable block 14.

[0031] In the above-mentioned embodiment of the present invention, an improved structure of the plate of the plate heat exchanger is provided. The plate of the plate heat exchanger is composed of two groups of plate bodies 1 and a plurality of detachable connecting pipes 3. The two plate bodies 1 are attached to each other. By screwing the screw 24 inward, the pressing block 8 squeezes the connecting block 17 to move. The connecting block 17 drives the two movable blocks 14 to move away from each other through the rotating plate 16. The movable blocks 14 drive the clamping blocks 15 arranged thereon to penetrate into the inside of the clamping grooves 18, and then the docking and fixing of the two plate bodies 1 can be realized, and subsequent disassembly and replacement are more convenient. By pressing the connecting pipe 3 outward, the fixing pin 22 is pressed into the inside of the mounting hole 21, and then the connecting pipe 3 can be removed.

[0032] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present disclosure, and all of them should be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. An improved structure of a plate heat exchanger plate, comprising a plate body, characterized in that: Also includes: A connecting pipe, wherein a connecting groove is provided on the plate body, a square groove is provided around the outside of the plate body, a plurality of heat exchange grooves are provided on the side wall of the square groove, a connecting pipe is provided inside the connecting groove, a plurality of through holes connected to the square groove are provided on the connecting pipe, a mounting hole is provided inside the connecting groove, a fixing pin is provided inside the mounting hole, and one end of the fixing pin penetrates into the connecting pipe; A card block, a mounting groove and a fixing groove are respectively provided on one side of the two plate bodies close to each other, a fixing rod is fixedly provided inside the mounting groove, a movable block is slidably provided on the fixing rod, a card block is provided on both movable blocks, a card slot matched with the card block is provided inside the fixing groove, a plurality of positioning holes are provided on the side wall of the plate body, and a positioning rod matched with the positioning hole is provided on the other plate body; The fixing mechanism is connected with the plate body and fixedly connects the two plate bodies by driving the clamping block to penetrate into the clamping slot.

2. The improved structure of the plate heat exchanger plate according to claim 1, characterized in that: The fixing mechanism includes a screw, a pressure block, a rotating plate and a connecting block. A rotating plate is provided on one side of the two movable blocks that are close to each other. A rotating shaft is provided at one end of the rotating plate. The rotating plate is rotatably connected to the connecting block through the rotating shaft. A screw is provided inside the fixing groove. A pressure block matching the connecting block is provided at one end of the screw.

3. The improved structure of the plate heat exchanger plate according to claim 2, characterized in that: A square hole is provided on the movable block, and one end of the rotating plate penetrates into the square hole and is rotatably connected with the movable block.

4. The improved structure of the plate heat exchanger plate according to claim 1, characterized in that: A telescopic spring is arranged inside the mounting hole, and one end of the telescopic spring is connected to the fixing pin.

5. The improved structure of the plate heat exchanger plate according to claim 1, characterized in that: Both ends of the fixing rod are sleeved with a return spring, and one end of the return spring is connected to the movable block.

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