Graphite heat exchanger with good sealing performance

Abstract

The utility model discloses a graphite heat exchanger with good sealing performance, which belongs to the technical field of graphite heat exchangers and comprises a heat exchanger body, the outer end of the heat exchanger body is fixedly connected with a butt joint nozzle, the outer end of the butt joint nozzle is fixedly connected with an elastic binding frame, and the elastic binding frame is wrapped by an elastic hoop. One end of the elastic hoop is fixedly connected with an elastic buckle, a bolt is movably inserted into the elastic buckle in a penetrating mode, the butt joint pipe is kept on the butt joint nozzle, then the bolt penetrates through the elastic buckle to be screwed into the elastic hoop, the elastic hoop is contracted through the elastic buckle, the elastic hoop contracts the elastic binding frame, and the butt joint pipe is further bound inwards through the elastic binding frame. The butt-joint pipe is guided inwards through the elastic binding frame to further press the butt-joint nozzle, force is evenly applied to the elastic binding frame through the elastic hoop, the sealing performance is improved in the mode that the force is evenly applied to the butt-joint nozzle and the butt-joint pipe through the elastic binding frame, and meanwhile the installation convenience is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of graphite heat exchangers, and in particular relates to a graphite heat exchanger with good sealing performance. Background Art

[0002] Graphite heat exchanger is a heat exchanger whose heat transfer components are made of graphite. The graphite used to make heat exchangers should be impermeable, and impregnated impermeable graphite and pressed impermeable graphite are commonly used.

[0003] The graphite heat exchanger uses conventional flange docking, and the flanges are docked with multiple screws. The screws are tightened to different degrees, resulting in local over-tightening or over-loosening, which causes a small degree of distortion after docking, which has a certain negative impact on the seal, thus causing the conventional graphite heat exchanger to dock with the pipeline with a deviation in sealing.

[0004] To this end, we proposed a graphite heat exchanger with good sealing performance to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problem of sealing deviation of conventional graphite heat exchangers butting against pipelines, and proposes a graphite heat exchanger with good sealing performance.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A graphite heat exchanger with good sealing performance comprises a heat exchanger body, the outer end of the heat exchanger body is fixedly connected with a docking nozzle, the outer end of the docking nozzle is fixedly connected with an elastic restraining frame, the outside of the elastic restraining frame is wrapped with an elastic hoop, one end of the elastic hoop is fixedly connected with a spring buckle, a bolt is movably inserted inside the spring buckle, the end of the bolt facing away from the spring buckle is threadedly connected to the elastic hoop, and the bolt is buckled with the elastic hoop. The initial state of the elastic restraint frame is an open state. The butt tube is inserted into the inner side of the elastic restraint frame to connect the butt tube with the butt nozzle. The bolt is then buckled with the elastic hoop to keep the butt tube on the butt nozzle. The bolt is then passed through the spring buckle and screwed into the elastic hoop. The spring buckle is used to contract the elastic hoop to cause the elastic hoop to contract the elastic restraint frame. The elastic restraint frame is used to further bind the butt tube inward. The butt nozzle is further compressed by guiding the butt tube inward through the elastic restraint frame. The elastic hoop is used to evenly apply force to the elastic restraint frame. The elastic restraint frame is used to evenly apply force to the butt nozzle and the butt tube. The sealing performance is improved while the installation convenience is also improved.

[0008] Preferably, the elastic restraint frame includes a fixed block, a first extrusion block, a second extrusion block, a first spring sheet, a stopper and a connection block. The first extrusion block and the second extrusion block have the same symmetrical structures. The first extrusion block and the second extrusion block are symmetrically fixedly connected to the side ends of the connection block. The first spring sheet is fixedly connected to the first extrusion block. The end of the first spring sheet facing away from the first extrusion block is fixedly connected to the fixed block. The stopper is symmetrically fixedly connected to the outer end of the connection block. When the outer end of the connection block loses the force of the elastic hoop, the first spring sheet is used to drive the first extrusion block, the connection block and the second extrusion block to open outward, so that the butt-joint pipe can be smoothly placed into the inner side of the elastic restraint frame.

[0009] Preferably, the elastic hoop comprises a threaded seat and an elastic hoop body, and the threaded seat is fixedly connected to one end of the elastic hoop body. The spring buckle is placed between the connecting blocks, and then the spring buckle and the threaded seat are buckled together, so that the elastic hoop body acts inwardly on the connecting block, so that the connecting block drives the first extrusion block and the second extrusion block to be pre-constrained on the butt joint pipe, and then the bolt is screwed into the threaded seat to tighten the spring buckle in the direction of the threaded seat, so that the elastic hoop body further tightens the connecting block, and the first extrusion block and the second extrusion block further clamp the butt joint pipe, so as to facilitate the butt joint of the butt joint pipe and the elastic binding frame.

[0010] Preferably, the elastic hoop further comprises a connecting piece, and the connecting piece is fixedly connected to the lower end of the elastic hoop body, so as to facilitate stabilizing the lower position of the elastic hoop body through the connecting piece.

[0011] Preferably, the spring buckle comprises a second spring sheet, a stop frame, and a buckle block, wherein the buckle block is fixedly connected to the lower end of the second spring sheet, and the second spring sheet is fixedly connected to the upper end of the stop frame. The buckle block is buckled on the threaded seat to pre-maintain the semi-contracted state of the elastic hoop body, so that the elastic hoop body acts on the connecting block, which facilitates the pre-fixation of the elastic binding frame to the butt pipe.

[0012] Preferably, the snap fastener further comprises a reinforcing plate, which is symmetrically fixedly connected to the outer end of the baffle frame, so as to increase the firmness of the baffle frame.

[0013] Preferably, the spring buckle further comprises a push button, and the push button is fixedly connected to the side end of the second spring sheet. The second spring sheet is operated by pinching the push button.

[0014] In summary, the technical effects and advantages of the utility model are as follows:

[0015] 1. The initial state of the elastic restraint frame is the open state. Insert the butt-jointed tube into the inner side of the elastic restraint frame to butt the butt-jointed tube with the butt-jointed nozzle. Then buckle the bolt with the elastic hoop to keep the butt-jointed tube on the butt-jointed nozzle. Then pass the bolt through the spring buckle and screw it into the elastic hoop. Use the spring buckle to shrink the elastic hoop so that the elastic hoop shrinks the elastic restraint frame. Use the elastic restraint frame to further bind the butt-jointed tube inward. Use the elastic restraint frame to guide the butt-jointed tube inward to further compress the butt-jointed nozzle. Use the elastic hoop to evenly apply force to the elastic restraint frame. Use the elastic restraint frame to evenly apply force to the butt-jointed nozzle and the butt-jointed tube to improve the sealing performance and the convenience of installation.

[0016] 2. When the outer end of the connecting block loses the force of the elastic hoop, the first spring sheet is used to drive the first extrusion block, the connecting block and the second extrusion block to open outward, so that the butt-joint pipe can be smoothly placed into the inner side of the elastic binding frame.

[0017] 3. Place the spring buckle between the connecting blocks, and then buckle the spring buckle and the threaded seat so that the elastic hoop body acts inward on the connecting block, so that the connecting block drives the first extrusion block and the second extrusion block to be pre-constrained on the butt joint pipe, and then screw the bolt into the threaded seat to tighten the spring buckle toward the threaded seat, so that the elastic hoop body further tightens the connecting block, and the first extrusion block and the second extrusion block further clamp the butt joint pipe, which is convenient for the butt joint pipe to be connected with the elastic binding frame.

[0018] 4. Use the buckle block to buckle on the threaded seat to pre-maintain the semi-contracted state of the elastic hoop body, so that the elastic hoop body acts on the connecting block, which is convenient for the elastic restraint frame to pre-fix the butt joint pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the elastic binding frame of the utility model;

[0021] Figure 3 This is a schematic diagram of the elastic hoop structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the spring buckle structure of the utility model.

[0023] In the figure: 1. heat exchanger body; 2. elastic restraining frame; 3. elastic hoop; 4. spring buckle; 5. docking nozzle; 6. docking tube; 7. bolt; 21. fixing block; 22. first extrusion block; 23. second extrusion block; 24. first spring piece; 25. stopper; 26. connecting block; 31. threaded seat; 32. elastic hoop body; 33. connecting piece; 41. second spring piece; 42. stop frame; 43. reinforcement plate; 44. push button; 45. buckle block. Implementation

[0024] The technical solutions in the utility model embodiments will be described clearly and completely below in conjunction with the drawings in the utility model embodiments. Obviously, the described embodiments are only part of the utility model embodiments, rather than all of the embodiments.

[0025] Reference Figure 1 and 2 A graphite heat exchanger with good sealing performance comprises a heat exchanger body 1, a docking nozzle 5 is fixedly connected to the outer end of the heat exchanger body 1, an elastic restraining frame 2 is fixedly connected to the outer end of the docking nozzle 5, an elastic hoop 3 is wrapped outside the elastic restraining frame 2, a docking tube 6 is bound inside the elastic restraining frame 2, the docking nozzle 5 is docked and matched with the docking tube 6, one end of the elastic hoop 3 is fixedly connected to a spring buckle 4, a bolt 7 is movably inserted inside the spring buckle 4, the end of the bolt 7 facing away from the spring buckle 4 is threadedly connected to the elastic hoop 3, and the bolt 7 is buckled with the elastic hoop 3.

[0026] Reference Figure 1 and 2 The elastic binding frame 2 includes a fixed block 21, a first extrusion block 22, a second extrusion block 23, a first spring sheet 24, a stopper 25 and a connecting block 26. The fixed block 21 is fixedly connected to the docking nozzle 5. The structures of the first extrusion block 22 and the second extrusion block 23 are symmetrical and identical. The first extrusion block 22 and the second extrusion block 23 are symmetrically fixedly connected to the side ends of the connecting block 26. The first spring sheet 24 is fixedly connected to the first extrusion block 22. The end of the first spring sheet 24 facing away from the first extrusion block 22 is fixedly connected to the fixed block 21. The stopper 25 is symmetrically fixedly connected to the outer end of the connecting block 26. When the outer end of the connecting block 26 loses the force of the elastic hoop 3, the first spring sheet 24 is used to drive the first extrusion block 22, the connecting block 26 and the second extrusion block 23 to open outward, so that the docking tube 6 can be smoothly placed into the inner side of the elastic binding frame 2.

[0027] Reference Figure 1 , 2 3, the elastic hoop 3 includes a threaded seat 31 and an elastic hoop body 32, the elastic hoop body 32 is wrapped outside the connecting block 26, the block 25 is symmetrically blocked at the side of the elastic hoop body 32, the elastic hoop body 32, the block 25 and the connecting block 26 are in active contact, and the threaded seat 31 is fixedly connected to one end of the elastic hoop body 32. The spring button 4 is placed between the connecting blocks 26, and then the spring button 4 and the threaded seat 31 are buckled, so that the elastic hoop body 32 acts inwardly on the connecting block 26, so that the connecting block 26 drives the first extrusion block 22 and the second extrusion block 23 to be pre-bound on the butt joint 6, and then the bolt 7 is screwed into the threaded seat 31, so that the spring button 4 is tightened in the direction of the threaded seat 31, so that the elastic hoop body 32 further tightens the connecting block 26, and the first extrusion block 22 and the second extrusion block 23 further clamp the butt joint 6.

[0028] Reference Figure 1 , 23, the elastic hoop 3 also includes a connecting piece 33, the side end of the connecting piece 33 is fixedly connected to the lower block 25, and the connecting piece 33 is fixedly connected to the lower end of the elastic hoop body 32. The connecting piece 33 is used to stabilize the lower position of the elastic hoop body 32.

[0029] Reference Figure 1 , 2 , 3 and 4, the spring buckle 4 includes a second spring piece 41, a stop frame 42, and a buckle block 45. The lower end of the stop frame 42 is fixedly connected to one end of the elastic hoop body 32 facing away from the threaded seat 31. The buckle block 45 is buckled and matched with the threaded seat 31. The buckle block 45 is fixedly connected to the lower end of the second spring piece 41, and the second spring piece 41 is fixedly connected to the upper end of the stop frame 42. The buckle block 45 is buckled on the threaded seat 31 to pre-maintain the semi-contracted state of the elastic hoop body 32, so that the elastic hoop body 32 acts on the connecting block 26, so that the elastic binding frame 2 is pre-fixed to the butt pipe 6.

[0030] Reference Figure 1 , 3 4, the snap button 4 also includes a reinforcing plate 43, the lower end of the reinforcing plate 43 is fixedly connected to the elastic hoop body 32, and the reinforcing plate 43 is symmetrically fixedly connected to the outer end of the baffle 42. The reinforcing plate 43 is used to increase the firmness of the baffle 42.

[0031] Reference Figure 1 and 4 The spring buckle 4 further includes a push button 44, which is fixedly connected to the side end of the second spring sheet 41. The second spring sheet 41 is operated by squeezing the push button 44.

[0032] Working principle: the initial state of the elastic restraint frame 2 is the open state. The docking tube 6 is inserted into the inner side of the elastic restraint frame 2 to dock the docking tube 6 with the docking mouth 5. The bolt 7 is then buckled with the elastic hoop 3 to keep the docking tube 6 on the docking mouth 5. The bolt 7 is then passed through the spring buckle 4 and screwed into the elastic hoop 3. The spring buckle 4 is used to shrink the elastic hoop 3, so that the elastic hoop 3 shrinks the elastic restraint frame 2. The elastic restraint frame 2 is used to further bind the docking tube 6 inward. The docking mouth 5 is further compressed by guiding the docking tube 6 inward through the elastic restraint frame 2. The elastic hoop 3 evenly applies force to the elastic restraint frame 2. The elastic restraint frame 2 evenly applies force to the docking mouth 5 and the docking tube 6 to improve the sealing performance.

[0033] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited to it. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the utility model according to the technical scheme and utility model concept of the utility model, which should be covered by the protection scope of the utility model.

[0034] The description briefly mentions the application direction of the utility model for the prior art that is known to those skilled in the art and has not been changed, and combines it with the utility model to form a complete technology; the description avoids over-popularizing the technology familiar to those skilled in the art, and is used to assist those skilled in the art to quickly understand the main content of the utility model.

Claims

1. A graphite heat exchanger with good sealing performance, comprising a heat exchanger body (1), wherein the outer end of the heat exchanger body (1) is fixedly connected to a docking nozzle (5), characterized in that: The outer end of the docking mouth (5) is fixedly connected to an elastic restraining frame (2), the elastic restraining frame (2) is wrapped with an elastic hoop (3) on the outside, one end of the elastic hoop (3) is fixedly connected to a spring buckle (4), a bolt (7) is movably inserted into the interior of the spring buckle (4), one end of the bolt (7) facing away from the spring buckle (4) is threadedly connected to the elastic hoop (3), and the bolt (7) is buckled with the elastic hoop (3).

2. A graphite heat exchanger with good sealing performance according to claim 1, characterized in that: The elastic restraint frame (2) comprises a fixed block (21), a first extrusion block (22), a second extrusion block (23), a first spring sheet (24), a stopper (25) and a connecting block (26); the first extrusion block (22) and the second extrusion block (23) have symmetrical structures; the first extrusion block (22) and the second extrusion block (23) are symmetrically fixedly connected to the side ends of the connecting block (26); the first spring sheet (24) is fixedly connected to the first extrusion block (22); an end of the first spring sheet (24) facing away from the first extrusion block (22) is fixedly connected to the fixed block (21); and the stopper (25) is symmetrically fixedly connected to the outer end of the connecting block (26).

3. The graphite heat exchanger with good sealing performance according to claim 1, characterized in that: The elastic hoop (3) comprises a threaded seat (31) and an elastic hoop body (32), wherein the threaded seat (31) is fixedly connected to one end of the elastic hoop body (32).

4. A graphite heat exchanger with good sealing performance according to claim 3, characterized in that: The elastic hoop (3) further comprises a connecting piece (33), wherein the connecting piece (33) is fixedly connected to the lower end of the elastic hoop body (32).

5. The graphite heat exchanger with good sealing performance according to claim 1, characterized in that: The spring buckle (4) comprises a second spring piece (41), a stop frame (42), and a buckle block (45); the buckle block (45) is fixedly connected to the lower end of the second spring piece (41); and the second spring piece (41) is fixedly connected to the upper end of the stop frame (42).

6. A graphite heat exchanger with good sealing performance according to claim 5, characterized in that: The spring buckle (4) further comprises a reinforcing plate (43), wherein the reinforcing plate (43) is symmetrically fixedly connected to the outer end of the retaining frame (42).

7. The graphite heat exchanger with good sealing performance according to claim 5, characterized in that: The spring buckle (4) further comprises a push button (44), wherein the push button (44) is fixedly connected to a side end of the second spring sheet (41).

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