Immersed polytetrafluoroethylene graphite heat exchanger

Abstract

The utility model relates to the technical field of heat exchangers, and discloses an impregnated tetrafluorographite heat exchanger which comprises a heat exchanger body, a floating head is arranged on one side of the heat exchanger body, a connecting disc B is fixedly arranged on one side of the floating head, and a sealing pipe is fixedly arranged on one side of the connecting disc B; the outer portion of the sealing pipe is sleeved with a plurality of evenly-arranged sealing gaskets, a plurality of evenly-arranged sealing rubber blocks are arranged on one side of the connecting disc B, a connecting disc A is fixedly arranged on one side of the heat exchanger, a through hole is formed in the connecting disc A, and a plurality of evenly-arranged sealing grooves are formed in the inner wall of the connecting disc A; a sealing groove is formed in the surface of the connecting disc A, the sealing gasket is clamped into the sealing groove, a plurality of evenly-arranged sealing fixing grooves are formed in the surface of the connecting disc A, the sealing rubber blocks are clamped into the sealing fixing grooves, and a clamping groove is formed in the connecting disc B. The whole sealing performance is improved by enhancing the sealing and fixing effect between the heat exchanger and the floating head.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to an impregnated tetrafluoro graphite heat exchanger. Background Art

[0002] Graphite material has good physical and mechanical properties and excellent corrosion resistance. Therefore, graphite heat exchangers are mainly used as chemical heat exchange equipment for heat exchange of corrosive media such as hydrochloric acid, sulfuric acid, and acetic acid.

[0003] For example, patent No. CN202122266849.1 discloses a graphite heat exchanger, whose structure includes a shell, a plurality of heat exchange blocks, which are arranged in the shell, and the plurality of heat exchange blocks are connected end to end. Channel one is opened in the heat exchange block, and the channels one of adjacent heat exchange blocks are interconnected. Channel two is opened in the heat exchange block, and the channel two passes through the opposite sides of the axis of the heat exchange block along a direction perpendicular to the arrangement of the plurality of heat exchange blocks. A gap is annular and is arranged between the inner side of the shell and the outer peripheral surface of the heat exchange block. The gap is connected to channel two. A spiral guide vane is arranged in the gap and is arranged around the plurality of heat exchange blocks. The inner side of the spiral guide vane abuts against the heat exchange block, and the outer side thereof abuts against the shell. The utility model is connected with the second channel through the annular gap, and a spiral guide plate is arranged around a plurality of heat exchange blocks in the gap, so that the inner side of the spiral guide plate abuts against the heat exchange block, and the outer side abuts against the shell. When the heat exchange work is performed, when the heat exchange liquid introduced into the gap of the shell flows vertically downward, the heat exchange liquid will be blocked and reflected by the spiral guide plate, and a part of the heat exchange liquid will flow into the second channel at an accelerated speed, and the other part will exchange heat along the surrounding trajectory of the spiral guide plate in the shell. Compared with the traditional heat exchange liquid directly flowing vertically downward from the gap in the shell, the heat exchange is more sufficient and the heat exchange efficiency is higher, so that the heat exchange liquid can continuously return and flow in the channel of the heat exchange block, thereby improving the utilization rate of the heat exchange liquid;

[0004] The floating head of the shell and tube graphite heat exchanger in this patent is not an integrated type, but a welded type, which often causes leakage at the welding point. If there is no sealing structure inside, the leakage will also increase, affecting the subsequent use. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides an impregnated polytetrafluoroethylene graphite heat exchanger, which solves the problem that the floating head of the shell and tube graphite heat exchanger is not an integrated type but a welding type, which leads to frequent leakage at the welding point. If there is no sealing structure fixed inside, the leakage will also increase, affecting the subsequent use.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: an impregnated polytetrafluorographite heat exchanger, including a heat exchanger, a floating head is provided on one side of the heat exchanger, a connecting disk B is fixedly provided on one side of the floating head, a sealing tube is fixedly provided on one side of the connecting disk B, a plurality of evenly arranged sealing gaskets are sleeved on the outside of the sealing tube, a plurality of evenly arranged sealing rubber blocks are provided on one side of the connecting disk B, a connecting disk A is fixedly provided on one side of the heat exchanger, a through hole is provided inside the connecting disk A, a plurality of evenly arranged sealing grooves are provided on the inner wall of the connecting disk A, the sealing gasket is inserted into the sealing groove, a plurality of evenly arranged sealing fixing grooves are provided on the surface of the connecting disk A, the sealing rubber block is inserted into the sealing fixing groove, a card slot is provided inside the connecting disk B, a buffer spring is provided on one side of the connecting disk A, a card block is provided on one side of the buffer spring, and the card block is inserted into the card slot.

[0007] Preferably, a connecting flange is fixedly provided on the outside of the heat exchanger, and threaded fixing holes are provided inside the connecting flange and the connecting disks A and B.

[0008] Preferably, threaded rods penetrating and connected to the threaded fixing holes are provided between the connecting flange and the connecting plate A and the connecting plate B.

[0009] Preferably, a water outlet is fixedly provided on one side of the floating head, and a water inlet is provided on the other side of the heat exchanger.

[0010] Preferably, a solution inlet is fixedly provided on one side of the upper end surface of the heat exchanger, and a solution outlet is fixedly provided on the other side of the upper end surface of the heat exchanger.

[0011] Preferably, one side of the connecting plate A is provided with impregnated polytetrafluoroethylene, and a graphite tube is provided inside the heat exchanger.

[0012] Preferably, an alarm is provided above the heat exchanger, and a temperature sensor is provided on one side above the heat exchanger. Beneficial Effects

[0013] The utility model provides a heat exchanger. Compared with the prior art, it has the following beneficial effects:

[0014] The connection plate B fixed on one side of the floating head is aligned with the through hole inside the connection plate A on one side of the heat exchanger, so that the sealing tube fixed on one side of the connection plate B is aligned with the through hole and inserted into it. While inserting it, the sealing gasket on the outside of the sealing tube is just inserted into the sealing groove opened inside the connection plate A for fixation. At the same time, the sealing rubber block on one side of the connection plate B is aligned with the sealing fixing groove opened inside the connection plate A and inserted into it, so that the sealing rubber block is deformed inside the sealing fixing groove, thereby increasing the connection method between the connection plate A and the connection plate B. When inserted, the buffer spring between the connection plate A and the connection plate B has a buffering effect, thereby improving the sealing structure's ability to withstand external loads and ensuring the sealing performance of the sealing structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 2 It is a schematic diagram of the sealing structure connection of the utility model.

[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of the sealing structure connection of the utility model.

[0018] In the figure: 1. heat exchanger; 2. connecting flange; 3. connecting plate A; 4. connecting plate B; 5. floating head; 6. solution inlet; 7. solution outlet; 8. water outlet; 9. sealing fixing groove; 10. sealing rubber block; 11. sealing pipe; 12. sealing gasket; 13. sealing groove; 14. card slot; 15. card block; 16. buffer spring; 17. through hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0020] See also Figure 1-3The utility model provides a technical solution: an impregnated polytetrafluoro graphite heat exchanger, comprising a heat exchanger 1, a floating head 5 is provided on one side of the heat exchanger 1, a connecting plate B4 is fixedly provided on one side of the floating head 5, a sealing tube 11 is fixedly provided on one side of the connecting plate B4, a plurality of evenly arranged sealing gaskets 12 are sleeved on the outside of the sealing tube 11, a connecting flange 2 is fixedly provided on the outside of the heat exchanger 1, threaded fixing holes are provided on the connecting flange 2 and the insides of the connecting plates A3 and B4, threaded rods penetrating and connected with the threaded fixing holes are provided between the connecting flange 2 and the connecting plates A3 and B4, the connecting plate B4 fixed on one side of the floating head 5 is first aligned with the through hole 17 inside the connecting plate A3 on one side of the heat exchanger 1, so that the sealing tube 11 fixed on one side of the connecting plate B4 is aligned with the through hole 17 and penetrated and inserted;

[0021] A plurality of evenly arranged sealing rubber blocks 10 are arranged on one side of the connection disk B4, a connection disk A3 is fixedly arranged on one side of the heat exchanger 1, a through hole 17 is arranged inside the connection disk A3, a plurality of evenly arranged sealing grooves 13 are opened on the inner wall of the connection disk A3, and the sealing gasket 12 is inserted into the sealing groove 13, a water outlet 8 is fixedly arranged on one side of the float head 5, and a water inlet is arranged on the other side of the heat exchanger 1, a solution inlet 6 is fixedly arranged on one side of the upper end surface of the heat exchanger 1, and a solution outlet 7 is fixedly arranged on the other side of the upper end surface of the heat exchanger 1. When inserted, the sealing gasket 12 outside the sealing tube 11 is just inserted into the sealing groove 13 opened inside the connection disk A3 for fixing, and at the same time, the sealing rubber block 10 on one side of the connection disk B4 is aligned with the sealing fixing groove 9 opened inside the connection disk A3 and inserted, so that the sealing rubber block 10 is deformed inside the sealing fixing groove 9;

[0022] A plurality of evenly arranged sealing fixing grooves 9 are provided on the surface of the connecting disk A3, and the sealing rubber block 10 is inserted into the sealing fixing groove 9. A slot 14 is provided inside the connecting disk B4, and a buffer spring 16 is provided on one side of the connecting disk A3, and a block 15 is provided on one side of the buffer spring 16, and the block 15 is inserted into the slot 14. Impregnated polytetrafluoroethylene is provided on one side of the connecting disk A3, and a graphite tube is provided inside the heat exchanger 1. An alarm is provided above the heat exchanger 1, and a temperature sensor is provided on one side above the heat exchanger 1. The connection method between the connecting disk A3 and the connecting disk B4 is increased. When inserted, the buffer spring 16 between the connecting disk A3 and the connecting disk B4 plays a buffering effect, thereby improving the sealing structure's ability to withstand external loads and ensuring the sealing performance of the sealing structure.

[0023] During operation, the connection disk B4 fixed on one side of the floating head 5 is first aligned with the through hole 17 inside the connection disk A3 on one side of the heat exchanger 1, so that the sealing tube 11 fixed on one side of the connection disk B4 is aligned with the through hole 17 and inserted into it. While inserting it, the sealing gasket 12 on the outside of the sealing tube 11 is just inserted into the sealing groove 13 opened inside the connection disk A3 for fixing. At the same time, the sealing rubber block 10 on one side of the connection disk B4 is aligned with the sealing fixing groove 9 opened inside the connection disk A3 and inserted into it, so that the sealing rubber block 10 is deformed inside the sealing fixing groove 9, thereby increasing the connection mode between the connection disk A3 and the connection disk B4. When inserted, the buffer spring 16 between the connection disk A3 and the connection disk B4 plays a buffering effect, thereby improving the sealing structure's ability to withstand external loads and ensuring the sealing performance of the sealing structure.

[0024] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. An impregnated polytetrafluoroethylene graphite heat exchanger, comprising a heat exchanger (1), characterized in that: A floating head (5) is provided on one side of the heat exchanger (1), a connecting plate B (4) is fixedly provided on one side of the floating head (5), a sealing tube (11) is fixedly provided on one side of the connecting plate B (4), a plurality of evenly arranged sealing pads (12) are sleeved on the outside of the sealing tube (11), a plurality of evenly arranged sealing rubber blocks (10) are provided on one side of the connecting plate B (4), a connecting plate A (3) is fixedly provided on one side of the heat exchanger (1), a through hole (17) is provided inside the connecting plate A (3), and a sealing tube (11) is fixedly provided on one side of the heat exchanger (1). ) is provided with a plurality of evenly arranged sealing grooves (13) on its inner wall, the sealing pad (12) is inserted into the sealing groove (13), a plurality of evenly arranged sealing fixing grooves (9) are provided on the surface of the connecting disk A (3), the sealing rubber block (10) is inserted into the sealing fixing groove (9), a slot (14) is provided inside the connecting disk B (4), a buffer spring (16) is provided on one side of the connecting disk A (3), a block (15) is provided on one side of the buffer spring (16), and the block (15) is inserted into the slot (14).

2. The impregnated polytetrafluoroethylene heat exchanger according to claim 1, characterized in that: A connecting flange (2) is fixedly provided on the outside of the heat exchanger (1), and threaded fixing holes are provided inside the connecting flange (2) and the connecting plate A (3) and the connecting plate B (4).

3. The impregnated polytetrafluoroethylene heat exchanger according to claim 2, characterized in that: Threaded rods penetrating and connected to the threaded fixing holes are provided between the connecting flange (2) and the connecting plate A (3) and the connecting plate B (4).

4. The impregnated polytetrafluoroethylene heat exchanger according to claim 1, characterized in that: A water outlet (8) is fixedly provided on one side of the floating head (5), and a water inlet is provided on the other side of the heat exchanger (1).

5. The impregnated polytetrafluoroethylene heat exchanger according to claim 1, characterized in that: A solution inlet (6) is fixedly provided on one side of the upper end surface of the heat exchanger (1), and a solution outlet (7) is fixedly provided on the other side of the upper end surface of the heat exchanger (1).

6. The impregnated polytetrafluoroethylene heat exchanger according to claim 1, characterized in that: One side of the connection plate A (3) is provided with impregnated polytetrafluoroethylene, and the interior of the heat exchanger (1) is provided with a graphite tube.

7. The impregnated polytetrafluoroethylene heat exchanger according to claim 1, characterized in that: An alarm is arranged above the heat exchanger (1), and a temperature sensor is arranged on one side above the heat exchanger (1).

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