A sealing structure of a graphite heat exchanger and a preparation method thereof

Abstract

The application discloses a sealing structure and a preparation method of a graphite heat exchanger, which comprises a heat exchanger main body, a sealing assembly, a sealing sleeve, an air bag one and an air bag two. The sealing assembly is arranged at the inner end of the heat exchanger main body, and comprises the sealing sleeve, the air bag one and the air bag two. The sealing sleeve is provided with a group of air bag ones at the front and back ends in the sealing sleeve. The sealing sleeve can be attached to the inner wall of the heat exchanger main body and fixed at the inner end of the heat exchanger main body. The middle end of the sealing sleeve is contracted by the air bag two, so that the sealing sleeve can be connected with external pipelines. The multiple sealing effect of the heat exchanger main body can be realized. The problems of single sealing mode, easy leakage and poor preparation adaptability of the traditional sealing structure are optimized. The sealing reliability and the production standardization degree are improved. The medium sealing property of the heat exchanger during operation can be effectively guaranteed, and the efficiency reduction or safety hazards caused by fluid leakage can be prevented.

Description

Technical Field

[0001] This invention relates to the field of graphite heat exchanger technology, specifically to a sealing structure and preparation method for a graphite heat exchanger. Background Technology

[0002] Currently, the commonly used sealing structures for graphite heat exchangers mostly employ gasket seals or single airbag seals. By filling the gap between the heat exchanger body and components with gaskets or single airbags, the medium is sealed. This type of structure can meet the basic sealing requirements under normal operating conditions and is a relatively common application in the industry. However, existing sealing structures have significant shortcomings. Traditional gasket seals are prone to aging due to long-term use, leading to a decline in sealing performance. Single-bladder seals can only seal localized areas and cannot meet the sealing needs of the heat exchanger's ends and middle sections. Furthermore, in existing manufacturing processes, gaps are easily created during the assembly of sealing components and the main body, and there is a lack of precise grinding mechanisms to adapt to different specifications of seals, affecting the overall accuracy and installation compatibility of the sealing structure and increasing the risk of leakage. Summary of the Invention

[0003] The purpose of this invention is to provide a sealing structure and preparation method for a graphite heat exchanger to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a sealing structure for a graphite heat exchanger, comprising a heat exchanger body, wherein a sealing assembly is installed at the inner end of the heat exchanger body, the sealing assembly comprising a sealing sleeve, an airbag one and an airbag two, the sealing sleeve being disposed at the inner end of the heat exchanger body, wherein a set of airbag one is provided at both the front and rear ends of the sealing sleeve, and a set of airbag two is connected to the middle end of the sealing sleeve.

[0005] By adopting the above technical solution, the sealing sleeve is fixed to the inner end of the heat exchanger body by two sets of airbags, and the inserted external pipe can be tightly fixed by the second airbag. The first airbags at the front and rear ends can fill and seal the gap between the sealing sleeve and the heat exchanger body, and the second airbag in the middle can enhance the sealing performance of the middle area of ​​the sealing sleeve. The three work together to solve the problem that traditional sealing structures are prone to leakage at the ends or middle. Multiple sealing defenses are formed inside the heat exchanger body, thereby achieving multiple sealing effects. Structurally, the medium sealing performance of the heat exchanger body during operation is guaranteed, preventing efficiency reduction or safety hazards caused by fluid leakage.

[0006] Preferably, a method for preparing a sealing structure for a graphite heat exchanger includes the following steps: S1: Raw material preparation: S11: Prepare the materials for the sealing sleeve; S12: Prepare the second material for the preparation of airbag one and airbag two; S2: Main body forming: S21: Making a sealing sleeve mold; S22: Material 2 is made into two large and one small annular airbags, and gas is injected into them; S23: Place the two sets of large airbags at both ends of the mold and the small airbag in the middle of the mold; S24: Heat material 1 to a molten state, pour it into the mold, and maintain pressure to shape it; S3: Optimized Installation: S31: Cool the mold down and remove the blank sealing sleeve; S32: The blank sealing sleeve is polished and optimized through an optimized mechanism; S33: Test the elasticity and airtightness of the sealing sleeve; S34: Insert the sealing sleeve into the inner end of the heat exchanger body.

[0007] Preferably, in step S, the optimization mechanism includes an adjustment mechanism and a grinding mechanism. The adjustment mechanism includes an adjustment chamber, a screw, a guide rod, a drive motor, a horizontal plate, and a moving frame. A set of screws is connected to the middle of the adjustment chamber, and a set of guide rods is provided at both the left and right ends. A set of drive motors is provided at the front end of the adjustment chamber. The rear end of the drive shaft of the drive motor extends through the adjustment chamber and is connected to the front end of the screw. The screw and the guide rod are connected to the outside by a set of horizontal plates. Both the left and right ends of the horizontal plates extend through the left and right ends of the adjustment chamber and are connected to a set of moving frames. The grinding mechanism is connected to the top of the moving frame.

[0008] By adopting the above technical solution, the adjustment mechanism can provide an adjustable moving support for the grinding mechanism, realizing the adaptability of grinding for sealing sleeve blanks of different sizes. During operation, the drive motor drives the screw to rotate, and the horizontal plate moves back and forth along the guide rod, synchronously driving the moving frame and the grinding mechanism to adjust their positions. It can be flexibly adapted according to the length of the sealing sleeve blank and the position of the area to be ground, solving the problem that a single fixed grinding position cannot adapt to sealing sleeves of different specifications.

[0009] Preferably, the polishing mechanism includes a base, side plates, lateral fasteners, a second drive motor, a turntable, a polishing rod, an air intake hole, a polishing layer, and an air outlet hole. A set of bases is connected to the top center of the movable frame. A set of side plates is provided on both the left and right sides of the base. A set of lateral fasteners is connected to the other end of each set of side plates. A set of second drive motors is provided at the front end of the base. A set of turntables is connected to the rear end of the base. A set of polishing rods is provided at the rear end of the turntables. At least two sets of air intake holes are provided at the outer center of the polishing rods. A polishing layer is provided at the rear end of the air intake holes. An air outlet hole is provided at the rear end of the polishing layer.

[0010] By adopting the above technical solution, the grinding mechanism can achieve precise grinding of the sealing sleeve blank and collection of dust generated during grinding, thereby improving the surface accuracy of the sealing sleeve and the cleanliness of the working environment. The drive motor at the front end of the base drives the turntable at the rear end to rotate, which in turn drives the grinding rod at the rear end of the turntable to rotate synchronously. The grinding layer on the outer side of the grinding rod directly contacts the sealing sleeve blank, and removes surface burrs and uneven areas through rotational friction, thereby improving the surface smoothness and dimensional accuracy of the sealing sleeve. In addition, the air outlet can spray airflow into the sealing sleeve, which can blow away the dust adhering to the inner wall of the sealing sleeve. The dust can be sucked into the grinding rod through the air intake and then discharged, avoiding dust accumulation that affects grinding accuracy or pollutes the environment.

[0011] Preferably, a set of transmission arms is connected to the front middle end of the turntable. The front end of the transmission arm is connected to the rear end of the drive shaft of the second drive motor through the base. A set of transmission arms is provided at the rear end of the turntable. The other end of the transmission arm is connected to a set of connecting frames. Both the left and right ends of the connecting frames are connected to a set of moving blocks through connecting arms.

[0012] By adopting the above technical solution, the second drive motor can drive the turntable to rotate through the first transmission arm, thereby driving the second transmission arm and the connecting frame to rotate. The moving block can move back and forth within the side buckle plate, thereby driving the grinding rod to rotate around the middle of the turntable, which can cover different areas of the sealing sleeve blank and avoid grinding dead corners.

[0013] Preferably, the front end of the grinding rod is provided with a set of base plates one, the front end of the base plate one is connected to a set of base plates two, the front end of the base plate two is provided with a set of transmission arms three, the transmission arms three pass through the rear end of the connecting frame and are connected to the transmission arms two, and the base plate one is provided with a set of air pipes one, the other end of the air pipes one is connected to the air outlet, the base plate two is provided with a set of air pipes two, the other end of the air pipes two is connected to the air intake.

[0014] By adopting the above technical solution, the front end of the grinding rod is nested with the transmission arm 2 through the transmission arm 3, which can ensure that the power of the transmission arm 2 is stably transmitted to the grinding rod, thereby improving the grinding accuracy of the sealing sleeve blank. The base plate 1 is equipped with an air pipe 1, and the other end of the air pipe 1 is connected to the air outlet. Gas can be stably delivered to the air outlet through the air pipe 1 to ensure the cleanliness of the inner wall of the sealing sleeve. The base plate 2 is equipped with an air pipe 2, and the other end of the air pipe 2 is connected to the air suction hole, forming a complete dust removal path, which can discharge dust in time and avoid dust accumulation affecting the grinding accuracy or causing pollution to the surrounding environment.

[0015] Preferably, the turntable is inclinedly connected to the transmission arm.

[0016] By adopting the above technical solution, the grinding rod can rotate circumferentially around the center of the turntable, which is beneficial for adapting the grinding of irregular surfaces inside the sealing sleeve. It avoids the problems of over-grinding or under-grinding caused by traditional vertical or horizontal rotation paths, and can effectively improve the grinding accuracy of the sealing sleeve.

[0017] Preferably, the front end of the third transmission arm extends to the inner end of the second transmission arm, and the second transmission arm is sleeved on the outer side of the third transmission arm.

[0018] By adopting the above technical solution, the transmission arm two and the transmission arm three form a nested structure, which can improve the coaxiality and adjustability of the grinding rod transmission and ensure the grinding stability and adaptability of the sealing sleeve.

[0019] Preferably, the side buckle plate has an inverted U-shaped cross-section, and the openings of the left and right sets of side buckles are opposite each other.

[0020] By adopting the above technical solution, the movement path of the moving block can be limited, and it can only move horizontally along the side buckle plate. It cannot deviate from the side buckle plate. The connecting frame and the grinding rod can be limited to move along the preset trajectory, so as to avoid the grinding of the sealing sleeve due to the deviation of the grinding rod.

[0021] Preferably, the left and right sets of movable blocks extend to the inner ends of the two sets of lateral buckles, and can move within the two sets of lateral buckles.

[0022] By adopting the above technical solution, the movement limit of the grinding mechanism can be further strengthened, ensuring that the grinding operation of the sealing sleeve blank is precise and controllable.

[0023] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention utilizes a sealing assembly located inside the heat exchanger body. The sealing assembly includes a sealing sleeve, an airbag one, and an airbag two. The two sets of airbag one can expand the two ends of the sealing assembly outward, allowing it to be tightly connected to the inner wall of the heat exchanger body and fixed inside the heat exchanger body. The airbag two can drive the sealing sleeve to tighten inward, facilitating the sealing connection of externally inserted pipes. This constructs a multi-dimensional sealing defense line inside the heat exchanger body. The direct cooperation between the sealing sleeve, airbag one, and airbag two solves the problem of leakage that easily occurs at the ends or middle of traditional sealing structures. Structurally, this ensures the medium sealing performance during heat exchanger operation and prevents efficiency reduction or safety hazards caused by fluid leakage. 2. The present invention sets up an optimization mechanism, which includes an adjustment mechanism and a grinding mechanism. The grinding mechanism includes components such as a base, a side buckle plate, a second drive motor, a turntable, and a grinding rod. The second drive motor drives the grinding rod to rotate through the turntable, which can grind and optimize the inner wall of the sealing sleeve, remove the burrs and rough edges remaining on the inner wall of the sealing sleeve, and ensure the smoothness of the inner wall of the sealing sleeve, thereby ensuring the sealing effect of the sealing sleeve. 3. The present invention uses a grinding rod set at the rear end of the turntable. The turntable and the grinding rod are connected at an angle. The outer side of the grinding rod is also provided with components such as air intake hole, grinding layer and air outlet hole. The inner end of the grinding rod is provided with air pipe one and air pipe two corresponding to the air outlet hole and air intake hole. By blowing air and sucking air through the air outlet hole and air intake hole, the dust adhering to the inner wall of the sealing sleeve can be removed and the dust can be recycled and collected, which can avoid grinding errors or pollution of the surrounding environment that may be caused by dust accumulation. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the connection structure of the sealing assembly of the present invention.

[0025] Figure 2 This is a schematic diagram of the optimized mechanism structure of the present invention.

[0026] Figure 3 This is a top view of the internal structure of the regulating compartment of the present invention.

[0027] Figure 4 This is a schematic diagram of the grinding mechanism of the present invention.

[0028] Figure 5 This is a schematic diagram of the turntable connection structure of the present invention.

[0029] Figure 6 This is a schematic diagram of the grinding rod structure of the present invention.

[0030] In the diagram: Heat exchanger body - 1, sealing assembly - 2, sealing sleeve - 3, airbag one - 4, airbag two - 5, optimization mechanism - 6, adjustment mechanism - 61, grinding mechanism - 62, adjustment chamber - 611, screw - 612, guide rod - 613, drive motor one - 614, horizontal plate - 615, moving frame - 616, base - 621, side plate - 622, side buckle plate - 623, drive motor two - 624, Turntable - 625, Grinding rod - 626, Air intake hole - 627, Grinding layer - 628, Air outlet hole - 629, Transmission arm one - 6251, Transmission arm two - 6252, Connecting frame - 6253, Connecting arm - 6254, Moving block - 6255, Base plate one - 6261, Base plate two - 6262, Transmission arm three - 6263, Air pipe one - 6264, Air pipe two - 6265. Detailed Implementation

[0031] To further explain the technical solution of the present invention, a detailed description is provided below through specific embodiments.

[0032] Please see Figure 1This invention provides a sealing structure for a graphite heat exchanger, including a heat exchanger body 1. A sealing component 2 is installed at the inner end of the heat exchanger body 1. The sealing component 2 includes a sealing sleeve 3, an airbag 4, and an airbag 5. The sealing sleeve 3 is installed at the inner end of the heat exchanger body 1. An airbag 4 is provided at both the front and rear ends of the sealing sleeve 3. The two airbags 4 expand outwards at both ends of the sealing sleeve 3 and are tightly connected to the inner wall of the heat exchanger body 1. An airbag 5 is connected to the middle end of the sealing sleeve 3. The airbag 5 can drive the middle end of the sealing sleeve 3 to contract inwards, which is convenient for clamping and connecting external pipelines.

[0033] Specifically, the sealing sleeve 3 is fixed to the inner end of the heat exchanger body 1 by two sets of airbags 1, and the inserted external pipe can be tightly fixed by the second airbag 5. Among them, the first airbag 4 at the front and rear ends can fill and seal the gap between the sealing sleeve 3 and the heat exchanger body 1 at the end, and the second airbag 5 in the middle can enhance the sealing performance of the middle area of ​​the sealing sleeve 3. The three work together to solve the problem that traditional sealing structures are prone to leakage at the end or middle, forming multiple sealing defenses inside the heat exchanger body 1, thereby achieving multiple sealing effects. Structurally, it ensures the medium sealing performance of the heat exchanger body 1 during operation and prevents efficiency reduction or safety hazards caused by fluid leakage.

[0034] Please see Figure 1 A method for preparing a sealing structure for a graphite heat exchanger includes the following steps: S1: Raw material preparation: S11: Prepare the materials for the sealing sleeve 3; S12: Prepare the second material for the preparation of airbag 1 4 and airbag 2 5; S2: Main body forming: S21: Make mold for sealing sleeve 3; S22: Material 2 is made into two large and one small annular airbags, and gas is injected into them; S23: Place the two sets of large airbags at both ends of the mold and the small airbag in the middle of the mold; S24: Heat material 1 to a molten state, pour it into the mold, and maintain pressure to shape it; S3: Optimized Installation: S31: Cool the mold down and remove the blank sealing sleeve 3; S32: The blank sealing sleeve 3 is polished and optimized by the optimization mechanism 6; S33: Test the elasticity and airtightness of the sealing sleeve 3; S34: Insert the sealing sleeve 3 into the inner end of the heat exchanger body 1.

[0035] Please see Figures 2-3The optimization mechanism 6 includes an adjustment mechanism 61 and a grinding mechanism 62. The adjustment mechanism 61 includes an adjustment chamber 611, a screw 612, a guide rod 613, a drive motor 614, a horizontal plate 615, and a moving frame 616. A set of screws 612 is installed in the middle of the adjustment chamber 611. A set of guide rods 613 is provided at both ends of the screw 612. A set of drive motors 614 is installed at the front end of the adjustment chamber 611. The rear end of the drive shaft of the drive motor 614 extends through into the adjustment chamber 611 and connects to the front end of the screw 612, which can drive the screw 612 to rotate. 612 is connected to the outer side of the guide rod 613 by a set of horizontal plates 615. The middle of the horizontal plate 615 is provided with an internal thread hole corresponding to the screw 612. When the screw 612 rotates, it can drive the horizontal plate 615 to move back and forth along the guide rod 613. The left and right ends of the horizontal plate 615 extend through to the left and right ends of the adjustment chamber 611 and are connected to a set of movable frames 616. The left and right sides of the adjustment chamber 611 are provided with through slots for the horizontal plate 615 to move. The movable frame 616 is inverted U-shaped and can move at the top of the adjustment chamber 611. The top of the movable frame 616 is connected to a grinding mechanism 62.

[0036] Specifically, the adjustment mechanism 61 can provide an adjustable moving support for the grinding mechanism 62, so as to realize the adaptability grinding of sealing sleeve 3 blanks of different sizes. During operation, the drive motor 614 drives the screw 612 to rotate, and the horizontal plate 615 moves back and forth along the guide rod 613, which simultaneously drives the moving frame 616 and the grinding mechanism 62 to adjust their positions. It can be flexibly adapted according to the length of the sealing sleeve 3 blank and the position of the area to be ground, solving the problem that a single fixed grinding position cannot adapt to sealing sleeves 3 of different specifications.

[0037] Please see Figure 4 and Figure 6The polishing mechanism 62 includes a base 621, side plates 622, lateral fasteners 623, a drive motor 624, a turntable 625, a polishing rod 626, an air intake 627, a polishing layer 628, and an air outlet 629. A set of bases 621 is fixedly connected to the top center of the movable frame 616. A set of side plates 622 is connected to both the left and right sides of the base 621. A set of lateral fasteners 623 is connected to the other end of each set of side plates 622. The lateral fasteners 623 have an inverted U-shaped cross-section, and the openings of the left and right sets of lateral fasteners 623 face each other, thus limiting the movement path of the movable block 6255. It can only move horizontally along the lateral fasteners 623 and cannot disengage from them. 23 generates an offset, which can limit the movement of the connecting frame 6253 and the polishing rod 626 along a preset trajectory, so as to avoid the polishing of the sealing sleeve 3 being deviated due to the offset of the polishing rod 626. A set of drive motors 624 are installed at the front end of the base 621, and a set of turntables 625 are connected to the rear end of the base 621. A set of polishing rods 626 are provided at the rear end of the turntables 625. At least two sets of suction holes 627 are provided at the outer middle of the polishing rods 626, which can suck in the dust and debris generated during polishing. A polishing layer 628 is provided at the rear end of the suction hole 627 to improve the polishing effect. An air outlet 629 is provided at the rear end of the polishing layer 628 to facilitate blowing away the dust adhering to the inner wall of the sealing sleeve 3.

[0038] Specifically, the grinding mechanism 62 can accurately grind the blank of the sealing sleeve 3 and collect the dust generated during grinding, thereby improving the surface accuracy of the sealing sleeve 3 and the cleanliness of the working environment. The drive motor 624 at the front end of the base 621 drives the turntable 625 at the rear end to rotate, thereby driving the grinding rod 626 at the rear end of the turntable 625 to rotate synchronously. The grinding layer 628 on the outer side of the grinding rod 626 directly contacts the blank of the sealing sleeve 3, and removes surface burrs and uneven areas through rotational friction, thereby improving the surface smoothness and dimensional accuracy of the sealing sleeve 3. In addition, the air outlet 629 can spray airflow into the sealing sleeve 3, which can blow away the dust adhering to the inner wall of the sealing sleeve 3. The dust can be sucked into the grinding rod 626 through the air intake 627 and then discharged, avoiding dust accumulation that affects the grinding accuracy or pollutes the environment.

[0039] Please see Figure 5A set of transmission arms 6251 is connected to the front middle of the turntable 625. The front end of the transmission arm 6251 passes through the base 621 and is connected to the rear end of the drive shaft of the second drive motor 624. The second drive motor 624 can drive the turntable 625 and the transmission arm 6251 to rotate. A set of transmission arms 6252 is connected to the rear middle of the turntable 625 at an angle. The other end of the transmission arm 6252 is rotatably connected to a set of U-shaped connecting frames 6253. Both the left and right ends of the connecting frames 6253 are connected to a set of moving blocks 6255 through connecting arms 6254. The connecting frames 6253 and the connecting arms 6254 are rotatably connected. The left and right sets of moving blocks 6255 extend to the inner ends of the two sets of side buckles 623 respectively and can move within the two sets of side buckles 623. This can further strengthen the movement limit of the grinding mechanism 62 and ensure that the grinding operation of the sealing sleeve 3 blank is precise and controllable.

[0040] Specifically, the second drive motor 624 can drive the turntable 625 to rotate through the first transmission arm 6251, thereby driving the second transmission arm 6252 and the connecting frame 6253 to rotate. The moving block 6255 can move back and forth within the side buckle plate 623, thereby driving the grinding rod 626 to rotate around the middle of the turntable 625, which can cover different areas of the sealing sleeve 3 blank and avoid grinding dead corners.

[0041] Please see Figure 6 The grinding rod 626 has a base plate 1 6261 at its front end. A base plate 2 6262 is connected to the front end of base plate 1 6261. A transmission arm 3 6263 is installed at the front end of base plate 2 6262. The front end of transmission arm 3 6263 extends through connecting frame 6253 to the inner end of transmission arm 2 6252. Transmission arm 2 6252 is sleeved on the outer side of transmission arm 3 6263, forming a nested structure. This improves the coaxiality and adjustability of the grinding rod 626's transmission, ensuring the stability and compatibility of grinding the sealing sleeve 3. Furthermore, because the turntable 625 and transmission arm 2 6252 are connected at an angle, the grinding rod... 626 can rotate around the middle of the turntable 625, which is beneficial for adapting the grinding of the irregular surface inside the sealing sleeve 3. It avoids the problem of over-grinding or under-grinding caused by the traditional vertical or horizontal rotation path, and can effectively improve the grinding accuracy of the sealing sleeve 3. A set of air pipes 6264 is provided in the base plate 1 6261. The other end of the air pipes 6264 is connected to the air outlet 629. Airflow can be delivered to the air outlet 629 through the air pipes 6264. A set of air pipes 6265 is provided in the base plate 2 6262. The other end of the air pipes 6265 is connected to the air intake 627. Dust and debris sucked in by the air intake 627 can be transported through the air pipes 6265.

[0042] Specifically, the front end of the grinding rod 626 is nested with the transmission arm 2 6252 via the transmission arm 3 6263, which ensures that the power of the transmission arm 2 6252 is stably transmitted to the grinding rod 626, thereby improving the grinding accuracy of the sealing sleeve 3 blank. The base plate 1 6261 is equipped with an air pipe 1 6264, the other end of which is connected to the air outlet 629. Gas can be stably delivered to the air outlet 629 through the air pipe 1 6264 to ensure the cleanliness of the inner wall of the sealing sleeve 3. The base plate 2 6262 is equipped with an air pipe 2 6265, the other end of which is connected to the suction hole 627, forming a complete dust removal path. Dust can be discharged in time, avoiding dust accumulation that affects the grinding accuracy or causes pollution to the surrounding environment.

[0043] This invention provides a sealing structure and preparation method for a graphite heat exchanger. The invention utilizes a sealing assembly 2 located inside the heat exchanger body 1. The sealing assembly 2 includes a sealing sleeve 3, airbag 4, and airbag 5. The two sets of airbags 4 can expand the two ends of the sealing assembly 2 outwards, allowing it to tightly connect with the inner wall of the heat exchanger body 1 and be fixed to the inner end of the heat exchanger body 1. The airbag 5 can drive the sealing sleeve 3 to tighten inwards, facilitating the sealing connection of externally inserted pipes. This constructs a multi-dimensional sealing defense line inside the heat exchanger body 1. The direct cooperation of the sealing sleeve 3, airbag 4, and airbag 5 solves the problem of leakage at the ends or middle of traditional sealing structures, structurally ensuring the medium sealing performance during heat exchanger operation and preventing efficiency reduction or safety hazards caused by fluid leakage. Furthermore, the invention utilizes an optimization mechanism 6 located in step S32. The optimization mechanism 6 includes an adjustment mechanism 61 and a grinding mechanism 62. The grinding mechanism 62 includes a base 621 and a side fastener. The components include plate 623, drive motor 624, turntable 625, and grinding rod 626. Drive motor 624 drives grinding rod 626 to rotate via turntable 625, which can grind and optimize the inner wall of sealing sleeve 3, removing burrs and rough edges remaining on the inner wall of sealing sleeve 3, ensuring the smoothness of the inner wall of sealing sleeve 3, thereby ensuring the sealing effect of sealing sleeve 3; through the grinding rod 626 set at the rear end of turntable 625, turntable 625 and grinding rod 626 are inclinedly connected. Furthermore, the outer side of the polishing rod 626 is also equipped with components such as an air intake hole 627, a polishing layer 628, and an air outlet hole 629. The inner end of the polishing rod 626 is equipped with an air pipe 6264 and an air pipe 6265 corresponding to the air outlet hole 629 and the air intake hole 627. By blowing air through the air outlet hole 629 and the air intake hole 627, the dust adhering to the inner wall of the sealing sleeve 3 can be removed, and the dust can be recycled and collected, which can avoid polishing errors or pollution of the surrounding environment that may be caused by dust accumulation.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for preparing a sealing structure for a graphite heat exchanger, characterized in that: The specific steps are as follows: S1: Raw material preparation: S11: Prepare the materials for the sealing sleeve (3); S12: Prepare the second material for the preparation of airbag one (4) and airbag two (5); S2: Main body forming: S21: Make a mold for the sealing sleeve (3); S22: Material 2 is made into two large and one small annular airbags, and gas is injected into them; S23: Place the two sets of large airbags at both ends of the mold and the small airbag in the middle of the mold; S24: Heat material 1 to a molten state, pour it into the mold, and maintain pressure to shape it; S3: Optimized Installation: S31: Cool the mold down and remove the blank sealing sleeve (3); S32: The blank sealing sleeve (3) is polished and optimized by the optimization mechanism (6); S33: Test the elasticity and airtightness of the sealing sleeve (3); S34: Insert the sealing sleeve (3) into the inner end of the heat exchanger body (1); In step S32, the optimization mechanism (6) includes an adjustment mechanism (61) and a grinding mechanism (62). The adjustment mechanism (61) includes an adjustment chamber (611), a screw (612), a guide rod (613), a drive motor (614), a horizontal plate (615), and a moving frame (616). A set of screws (612) is connected to the middle of the adjustment chamber (611), and a set of guide rods (613) is provided at both the left and right ends of the chamber. The front end of the adjustment chamber (611) is provided with... There is a set of drive motors (614), the rear end of the drive shaft of the drive motor (614) extends through to the adjustment chamber (611) and is connected to the front end of the screw (612). The screw (612) and the outside of the guide rod (613) are connected by a set of horizontal plates (615). The left and right ends of the horizontal plates (615) extend through to the left and right ends of the adjustment chamber (611) and are connected to a set of movable frames (616). The top of the movable frame (616) is connected to a grinding mechanism (62).

2. The method for preparing a sealing structure for a graphite heat exchanger according to claim 1, characterized in that: The polishing mechanism (62) includes a base (621), side plates (622), side fasteners (623), a second drive motor (624), a turntable (625), a polishing rod (626), an air intake (627), a polishing layer (628), and an air outlet (629). A set of bases (621) is connected to the top center of the movable frame (616). A set of side plates (622) is provided on both the left and right sides of the base (621). The other ends of the two sets of side plates (622) are connected to... There is a set of side buckles (623), the front end of the base (621) is provided with a set of drive motors (624), the rear end of the base (621) is connected to a set of turntables (625), the rear end of the turntables (625) is provided with a set of polishing rods (626), the outer middle end of the polishing rods (626) is provided with no less than two sets of air intake holes (627), the rear end of the air intake holes (627) is provided with a polishing layer (628), and the rear end of the polishing layer (628) is provided with an air outlet hole (629).

3. The method for preparing a sealing structure for a graphite heat exchanger according to claim 2, characterized in that: A set of transmission arms (6251) is connected to the front middle end of the turntable (625). The front end of the transmission arm (6251) passes through the base (621) and is connected to the rear end of the drive shaft of the second drive motor (624). A set of transmission arms (6252) is provided at the rear end of the turntable (625). A set of connecting frames (6253) is connected to the other end of the transmission arm (6252). A set of moving blocks (6255) is connected to both the left and right ends of the connecting frame (6253) through connecting arms (6254).

4. The method for preparing a sealing structure for a graphite heat exchanger according to claim 3, characterized in that: The grinding rod (626) has a set of base plate one (6261) at the front end. The front end of the base plate one (6261) is connected to a set of base plate two (6262). The front end of the base plate two (6262) is provided with a set of transmission arm three (6263). The transmission arm three (6263) passes through the rear end of the connecting frame (6253) and is connected to the transmission arm two (6252). The base plate one (6261) is provided with a set of air pipe one (6264). The other end of the air pipe one (6264) is connected to the air outlet (629). The base plate two (6262) is provided with a set of air pipe two (6265). The other end of the air pipe two (6265) is connected to the air intake (627).

5. The method for preparing a sealing structure for a graphite heat exchanger according to claim 3, characterized in that: The turntable (625) is inclinedly connected to the transmission arm (6252).

6. The method for preparing a sealing structure for a graphite heat exchanger according to claim 4, characterized in that: The front end of the third transmission arm (6263) extends to the inner end of the second transmission arm (6252), and the second transmission arm (6252) is sleeved on the outside of the third transmission arm (6263).

7. The method for preparing a sealing structure for a graphite heat exchanger according to claim 2, characterized in that: The side buckle (623) has an inverted U-shaped cross section, and the openings of the left and right sets of side buckles (623) are opposite each other.

8. The method for preparing a sealing structure for a graphite heat exchanger according to claim 3, characterized in that: The two sets of movable blocks (6255) extend to the inner ends of the two sets of side fasteners (623) respectively, and can move within the two sets of side fasteners (623).

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