A filter device for a graphite heat exchanger

Abstract

The application relates to the technical field of graphite heat exchangers, in particular to a filtering device of a graphite heat exchanger, which comprises a heat exchanger assembly, the two sides of the heat exchanger assembly are fixedly connected with elliptical heads, the side, away from the heat exchanger assembly, of the elliptical head is fixedly connected with a connecting pipeline, the side, away from the elliptical head, of the outer side of the connecting pipeline is fixedly connected with a positioning flange, the top of the heat exchanger assembly is fixedly connected with a heat dissipation filtering assembly, and the bottom of the heat exchanger assembly is provided with a height-adjustable positioning support; the heat exchanger assembly comprises a first heat dissipation cylinder; liquid passes through a second arc-shaped pipeline, a second pipeline, a U-shaped pipeline and a third arc-shaped pipeline, is then injected into the inner side of a filtering cylinder body through a third pipeline, and then the impurities in the cooling medium are filtered through a filter screen, so that the abrasion and corrosion of the graphite heat exchanger caused by the impurities are reduced, the heat exchange efficiency is improved, the fluid is ensured to be clean, and the heat conduction performance of the heat exchanger is improved.

Description

Technical Field

[0001] This invention relates to the field of graphite heat exchanger technology, and more specifically to a filtration device for a graphite heat exchanger. Background Technology

[0002] Graphite heat exchangers are highly efficient heat exchange devices that utilize the excellent thermal conductivity and corrosion resistance of graphite materials to achieve heat exchange between different fluids.

[0003] The filtration device of a graphite heat exchanger is a key component to ensure the efficient and stable operation of the graphite heat exchanger. It can effectively remove impurities from the fluid, prevent heat exchanger blockage and corrosion, and extend the service life of the equipment.

[0004] The filtration system of a graphite heat exchanger has the following functions: Impurity filtration: Removing particulate matter, suspended solids, and other impurities from the fluid to prevent heat exchange tube blockage. Heat exchanger protection: Reducing wear and corrosion caused by impurities, thus lowering maintenance costs. Improved heat exchange efficiency: Ensuring fluid cleanliness and enhancing the heat exchanger's thermal conductivity.

[0005] Existing filtration devices for graphite heat exchangers have some shortcomings during use, specifically as follows: Existing filtration devices remove the condensate from the graphite heat exchanger, filter it, and then re-inject it to reduce wear and corrosion caused by impurities. However, in practice, existing equipment typically discharges the cooling medium from the graphite heat exchanger at set intervals, filters it, and then re-injects it. However, existing filtration devices cannot filter the cooling medium in real time, and they lack automatic cleaning capabilities, making them inconvenient to use. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a filtration device for a graphite heat exchanger to solve the problems existing in the background art.

[0007] The present invention provides the following technical solution: a filtration device for a graphite heat exchanger, comprising a heat exchanger assembly, elliptical heads fixedly connected to both sides of the heat exchanger assembly, a connecting pipe fixedly connected to the side of the elliptical head away from the heat exchanger assembly, a positioning flange fixedly connected to the outer side of the connecting pipe away from the elliptical head, a heat dissipation filtration assembly fixedly connected to the top of the heat exchanger assembly, and a height-adjustable positioning bracket installed at the bottom of the heat exchanger assembly.

[0008] Furthermore, the heat exchanger assembly includes a first heat dissipation cylinder, a sealing ring plate fixedly connected to the outer side of the first heat dissipation cylinder, a second heat dissipation cylinder fixedly connected to the inner side of the sealing ring plate, a hexagonal positioning groove opened at the top of the first heat dissipation cylinder, a first L-shaped pipe fixedly connected to the bottom of the first heat dissipation cylinder, a first arc-shaped pipe fixedly connected to the end of the first L-shaped pipe away from the first heat dissipation cylinder, positioning round holes opened on the sides of the first heat dissipation cylinder and the second heat dissipation cylinder, a heat transfer pipe fixedly connected to the inner side of the positioning round hole, and a second L-shaped pipe fixedly connected to the side of the first arc-shaped pipe away from the first L-shaped pipe.

[0009] Furthermore, the heat dissipation and filtration assembly includes a second arc-shaped pipe, a circulation pump is fixedly connected to the top of the second arc-shaped pipe, a first pipe is fixedly connected to the top of the circulation pump, a second pipe is fixedly connected to the end of the second arc-shaped pipe away from the circulation pump, a U-shaped pipe is fixedly connected to the side of the second pipe away from the second arc-shaped pipe, a filtration assembly is fixedly connected to the top of the first heat dissipation cylinder, and a third arc-shaped pipe is fixedly connected to the top of the filtration assembly.

[0010] Furthermore, the filter assembly includes a filter cylinder, a third pipe is fixedly connected to the top of the filter cylinder, a hexagonal lifting ring plate is provided on the inner side of the filter cylinder, a filter screen is fixedly connected to the bottom of the inner side of the hexagonal lifting ring plate, a drain pipe is fixedly connected to one side of the filter cylinder, and a water injection pipe is fixedly connected to the other side of the filter cylinder.

[0011] Furthermore, a hexagonal positioning ring plate is fixedly connected to the bottom of the filter cylinder, a hexagonal sealing plate is fixedly connected to the top of the hexagonal positioning ring plate, a servo motor is fixedly connected to the bottom of the hexagonal sealing plate, a positioning disc is fixedly connected to the output shaft of the servo motor, a cleaning brush is fixedly connected to the top of the positioning disc, a positioning groove is provided on the top of the hexagonal positioning ring plate, a positioning spring is fixedly connected to the bottom of the inner side of the positioning groove, a lifting drain plate is fixedly connected to one side of the hexagonal lifting ring plate, and drain holes are provided on both the lifting drain plate and one side of the hexagonal lifting ring plate.

[0012] Furthermore, the first heat sink is fixedly connected to the sealing ring plate. Sealing ring plates are provided at the connection between the first heat sink and the sealing ring plate, and at two adjacent connection points of the second heat sink. The connection between the first and second heat sinks, and at two adjacent connection points of the second heat sink, are located in the middle of the sealing ring plate. The size of the hexagonal positioning groove is adapted to the size of the filter assembly. The diameter of the positioning hole is clearance-fitted with the diameter of the heat transfer tube. The first L-shaped pipe, the first arc-shaped pipe, and the second L-shaped pipe are respectively connected to adjacent first and second heat sinks and adjacent two second heat sinks. A drain hole is provided at the bottom of the first heat sink, and the diameter of the drain hole at the bottom of the first heat sink is adapted to the outer diameter of the first L-shaped pipe. Positioning holes are provided at the top and bottom of the second heat sink, and the diameter of the positioning hole in the second heat sink is adapted to the diameter of the first L-shaped pipe. The diameters of the first L-shaped pipe, the first arc-shaped pipe, and the second L-shaped pipe are the same.

[0013] Furthermore, the second pipe is spliced ​​with the U-shaped pipe to form a corrugated pipe. One end of the corrugated pipe formed by splicing the second pipe with the U-shaped pipe is fixedly connected to the second arc-shaped pipe. The other end of the corrugated pipe formed by splicing the second pipe with the U-shaped pipe is fixedly connected to the third arc-shaped pipe. The third arc-shaped pipe is fixedly connected to the third pipe. The first pipe is fixedly connected to the second heat dissipation cylinder located on the other side of the heat exchanger assembly.

[0014] Furthermore, the outer dimensions of the hexagonal lifting ring plate are clearance-fitted with the inner dimensions of the filter cylinder, the diameter of the drain hole is the same as the inner diameter of the drain pipe, the bottom of the water injection pipe is connected to the first heat dissipation cylinder, the width of the positioning groove is in a 5:6 ratio to the diameter of the positioning spring, a lifting notch is provided on the inner side of the filter cylinder near the lifting drain plate, and the cross-sectional dimensions of the lifting notch of the lifting drain plate are clearance-fitted with the cross-sectional dimensions of the lifting drain plate.

[0015] The technical effects and advantages of this invention are as follows:

[0016] 1. During installation, a tee is connected to the drain pipe, with the branch pipe of the tee located at the top. Solenoid valves are installed at the other two interfaces of the tee. The tilt angle of the equipment is adjusted according to actual processing requirements. During operation, the connecting pipes on both sides of the heat exchanger assembly are connected to the positioning flange to handle the medium to be processed and the discharge medium. The heat exchange medium passes through the positioning hole, through the first heat dissipation cylinder and all the second heat dissipation cylinders, effectively reducing the temperature of the medium passing through the equipment. A circulating pump ensures the circulation of the cooling medium inside the equipment. The medium enters the first L-shaped pipe and the first arc-shaped pipe through the first heat dissipation cylinder, and then flows through the second L-shaped pipe into the first heat exchanger. The second heat sink is adjacent to the first heat sink. Then, the medium to be processed is injected into another second heat sink through the first L-shaped pipe, the first arc-shaped pipe, and the second L-shaped pipe at the bottom of the second heat sink. The medium to be processed is injected from the side away from the first heat sink and discharged from the side closer to the first heat sink, so that the temperature inside the equipment increases from left to right, ensuring gradual heat dissipation of the medium to be processed. Insulation layers are set at the connection between the first and second heat sinks and at the adjacent connection between the second heat sinks to prevent heat transfer. This ensures that the cooling liquid inside the equipment is not heated at the same time when the processing liquid is subjected to heat replacement, enabling the equipment to achieve multi-stage cooling and ensuring cooling efficiency.

[0017] 2. In this invention, the liquid passes through a second arc-shaped pipe, a second pipe, a U-shaped pipe, and a third arc-shaped pipe, and then enters the inner side of the filter cylinder through the third pipe. The liquid then passes through a filter screen to filter impurities in the cooling medium, thereby reducing the wear and corrosion of the graphite heat exchanger by impurities, improving heat exchange efficiency, ensuring fluid cleanliness, and enhancing the heat transfer performance of the heat exchanger.

[0018] 3. In this invention, prolonged filtration leads to filter clogging, and with the same pump power, the pressure on the hexagonal lifting ring plate increases, compressing the positioning spring. As the filter clogging worsens, the bottom of the hexagonal lifting ring plate gradually moves closer to the positioning disc. During this process, the hexagonal lifting ring plate gradually blocks the water injection pipe. When the hexagonal lifting ring plate contacts the cleaning brush, the water injection pipe is completely blocked, and at this point, the drain pipe overlaps with the drain hole. Then, the servo motor drives the positioning disc to rotate, thereby... The filter screen is cleaned by a cleaning brush. After cleaning, the valve of the parallel diversion pipe connected to the tee is opened to discharge the impurities and some of the cooling medium from the filter screen. At this time, the circulation pump stops working, which reduces the pressure on the top of the hexagonal lifting ring plate. Under the action of the positioning spring, the hexagonal lifting ring plate returns to its original position. Then, the cooling medium is replenished to the equipment through the top diversion pipe of the tee, and the same volume as the discharged medium is replenished. This realizes the automatic discharge of impurities from the graphite heat exchanger and the automatic cleaning of the filter screen, making the equipment more intelligent and easier to use. Attached Figure Description

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

[0020] Figure 2 This is a schematic diagram of the overall rear structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the overall cross-sectional structure of the present invention;

[0022] Figure 4 This is a schematic cross-sectional view of the heat exchanger assembly of the present invention;

[0023] Figure 5 For the present invention Figure 4 A magnified structural diagram at point A;

[0024] Figure 6 This is a schematic diagram of the heat dissipation and filtering component structure of the present invention;

[0025] Figure 7 This is a schematic cross-sectional view of the filter assembly of the present invention;

[0026] Figure 8 This is a schematic diagram of the other side of the cross-section of the filter assembly of the present invention.

[0027] The attached figures are labeled as follows: 1. Heat exchanger assembly; 101. First heat exchanger cylinder; 102. Sealing ring plate; 103. Second heat exchanger cylinder; 104. Hexagonal positioning groove; 105. First L-shaped pipe; 106. First arc-shaped pipe; 107. Positioning hole; 108. Heat transfer pipe; 109. Second L-shaped pipe; 2. Elliptical end cap; 3. Connecting pipe; 4. Positioning flange; 5. Heat dissipation and filtration assembly; 501. Second arc-shaped pipe; 502. First pipe; 503. Circulation pump; 504. Second pipe; 505. U-shaped pipe. 506. Filter assembly; 5061. Filter cylinder; 5062. Third pipe; 5063. Hexagonal positioning ring plate; 5064. Hexagonal sealing plate; 5065. Servo motor; 5066. Positioning disc; 5067. Cleaning brush; 5068. Positioning spring; 5069. Hexagonal lifting ring plate; 50610. Filter screen; 50611. Drain pipe; 50612. Water injection pipe; 50613. Positioning groove; 50614. Drain hole; 50615. Lifting drain plate; 507. Third arc-shaped pipe. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The filtration device of the graphite heat exchanger involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Reference Figures 1 to 8 The present invention provides a filtration device for a graphite heat exchanger, including a heat exchanger assembly 1, elliptical heads 2 fixedly connected to both sides of the heat exchanger assembly 1, a connecting pipe 3 fixedly connected to the side of the elliptical heads 2 away from the heat exchanger assembly 1, a positioning flange 4 fixedly connected to the outer side of the connecting pipe 3 away from the elliptical heads 2, a heat dissipation filtration assembly 5 fixedly connected to the top of the heat exchanger assembly 1, and a height-adjustable positioning bracket installed at the bottom of the heat exchanger assembly 1.

[0030] In a preferred embodiment, the heat exchanger assembly 1 includes a first heat dissipation cylinder 101, a sealing ring plate 102 fixedly connected to the outer side of the first heat dissipation cylinder 101, a second heat dissipation cylinder 103 fixedly connected to the inner side of the sealing ring plate 102, a hexagonal positioning groove 104 formed at the top of the first heat dissipation cylinder 101, a first L-shaped pipe 105 fixedly connected to the bottom of the first heat dissipation cylinder 101, a first arc-shaped pipe 106 fixedly connected to the end of the first L-shaped pipe 105 away from the first heat dissipation cylinder 101, and positioning holes formed on the sides of the first heat dissipation cylinder 101 and the second heat dissipation cylinder 103. 107. A heat transfer pipe 108 is fixedly connected to the inner side of the positioning hole 107. A second L-shaped pipe 109 is fixedly connected to the side of the first arc-shaped pipe 106 away from the first L-shaped pipe 105. During installation, a tee is connected at the drain pipe 50611, with the branch pipe of the tee located at the top. Solenoid valves are installed at the other two interfaces of the tee. The tilt angle of the equipment is adjusted according to the actual processing requirements. During operation, the connecting pipes 3 on both sides of the heat exchanger assembly 1 are connected to the positioning flange 4 to the medium to be processed and the discharge processing medium. The heat exchange medium passes through the positioning hole 107. The orifice 107, passing through the first heat sink 101 and all the second heat sinks 103, effectively reduces the temperature of the medium passing through the equipment. The circulating pump 503 operates, allowing the cooling medium to circulate within the equipment. The medium passes through the first heat sink 101 into the first L-shaped pipe 105 and the first arc-shaped pipe 106, then through the second L-shaped pipe 109 into the adjacent second heat sink 103. Finally, it flows through the first L-shaped pipe 105, the first arc-shaped pipe 106, and the second L-shaped pipe 109 at the bottom of the second heat sink 103 into another... A second heat sink 103 is provided. The medium to be processed is injected from the side away from the first heat sink 101 and discharged from the side close to the first heat sink 101, so that the temperature inside the equipment increases from left to right, ensuring gradual heat dissipation of the medium to be processed. In addition, a heat insulation layer is provided at the connection between the first heat sink 101 and the second heat sink 103 and at the adjacent connection of the second heat sink 103 to avoid heat transfer. This ensures that the cooling liquid inside the equipment will not be heated at the same time when the processing liquid is subjected to heat replacement, so that the equipment can achieve multi-stage cooling and ensure cooling efficiency.

[0031] In a preferred embodiment, the heat dissipation filter assembly 5 includes a second arc-shaped pipe 501, a circulation pump 503 fixedly connected to the top of the second arc-shaped pipe 501, a first pipe 502 fixedly connected to the top of the circulation pump 503, a second pipe 504 fixedly connected to the end of the second arc-shaped pipe 501 away from the circulation pump 503, a U-shaped pipe 505 fixedly connected to the side of the second pipe 504 away from the second arc-shaped pipe 501, a filter assembly 506 fixedly connected to the top of the first heat dissipation cylinder 101, and a third arc-shaped pipe 507 fixedly connected to the top of the filter assembly 506.

[0032] In a preferred embodiment, the filter assembly 506 includes a filter cylinder 5061, a third pipe 5062 fixedly connected to the top of the filter cylinder 5061, a hexagonal lifting ring plate 5069 provided on the inner side of the filter cylinder 5061, a filter screen 50610 fixedly connected to the bottom of the inner side of the hexagonal lifting ring plate 5069, a drain pipe 50611 fixedly connected to one side of the filter cylinder 5061, and a water injection pipe 50612 fixedly connected to the other side of the filter cylinder 5061. Liquid passes through the second arc-shaped pipe 501, the second pipe 504, the U-shaped pipe 505, and the third arc-shaped pipe 507, and then enters the inner side of the filter cylinder 5061 through the third pipe 5062. Then, the filter screen 50610 filters impurities in the cooling medium, reducing the wear and corrosion of the graphite heat exchanger by impurities, improving heat exchange efficiency, ensuring fluid cleanliness, and improving the heat transfer performance of the heat exchanger.

[0033] In a preferred embodiment, a hexagonal positioning ring plate 5063 is fixedly connected to the bottom of the filter cylinder 5061, a hexagonal sealing plate 5064 is fixedly connected to the top of the hexagonal positioning ring plate 5063, a servo motor 5065 is fixedly connected to the bottom of the hexagonal sealing plate 5064, a positioning disc 5066 is fixedly connected to the output shaft of the servo motor 5065, a cleaning brush 5067 is fixedly connected to the top of the positioning disc 5066, and a positioning groove 50613 is formed on the top of the hexagonal positioning ring plate 5063. The bottom of the inner side of the positioning groove 50613 is fixedly... A positioning spring 5068 is fixedly connected to one side of a hexagonal lifting ring plate 5069, and a lifting drain plate 50615 is fixedly connected to one side of the hexagonal lifting ring plate 5069. Drainage holes 50614 are opened on one side of both the lifting drain plate 50615 and the hexagonal lifting ring plate 5069. Over time, filtration causes the filter screen 50610 to become clogged. Since the circulation pump 503 has the same delivery power, the pressure on the hexagonal lifting ring plate 5069 increases, causing the positioning spring 5068 to be compressed. As the clogging of the filter screen 50610 gradually worsens, the bottom of the hexagonal lifting ring plate 5069 gradually tilts upwards. As the positioning disc 5066 approaches, the hexagonal lifting ring plate 5069 gradually blocks the water inlet pipe 50612. When the hexagonal lifting ring plate 5069 contacts the cleaning brush 5067, the water inlet pipe 50612 is completely blocked, and at this time, the drain pipe 50611 overlaps with the drain hole 50614. Then, the servo motor 5065 drives the positioning disc 5066 to rotate, thereby cleaning the filter screen 50610 with the cleaning brush 5067. After cleaning, 5011 is then... When the valve of the parallel diversion pipe connected to the tee is opened, the impurities and some of the cooling medium brushed off the filter screen 50610 are discharged. At this time, the circulation pump 503 stops working, which reduces the pressure on the top of the hexagonal lifting ring plate 5069. Under the action of the positioning spring 5068, the hexagonal lifting ring plate 5069 returns to its original position. Then, the cooling medium is replenished to the equipment through the top diversion pipe of the tee, which is the same volume as the discharged medium. This realizes the automatic discharge of impurities from the graphite heat exchanger and the automatic cleaning of the filter screen 50610, making the equipment more intelligent and easier to use.

[0034] In a preferred embodiment, the first heat sink 101 is fixedly connected to the sealing ring plate 102. Sealing ring plates 102 are provided at the connection points of the first heat sink 101 and the sealing ring plate 102, and at two adjacent connection points of the second heat sink 103. The connection points of the first heat sink 101 and the second heat sink 103, and at two adjacent connection points of the second heat sink 103, are located in the middle of the sealing ring plate 102. The size of the hexagonal positioning groove 104 is adapted to the size of the filter assembly 506. The diameter of the positioning hole 107 and the diameter of the heat transfer tube 108 are clearance-fitted. The first L-shaped pipe 105, the first... The arc-shaped pipe 106 and the second L-shaped pipe 109 are respectively connected to the adjacent first heat sink 101 and second heat sink 103 and two adjacent second heat sinks 103. The bottom of the first heat sink 101 is provided with a drainage hole, and the diameter of the drainage hole at the bottom of the first heat sink 101 is adapted to the diameter of the outer side of the first L-shaped pipe 105. The top and bottom of the second heat sink 103 are provided with positioning holes, and the diameter of the positioning holes of the second heat sink 103 is adapted to the diameter of the first L-shaped pipe 105. The diameters of the first L-shaped pipe 105, the first arc-shaped pipe 106 and the second L-shaped pipe 109 are the same.

[0035] In a preferred embodiment, the second pipe 504 and the U-shaped pipe 505 are spliced ​​together to form a corrugated pipe. One end of the corrugated pipe formed by the splicing of the second pipe 504 and the U-shaped pipe 505 is fixedly connected to the second arc-shaped pipe 501. The other end of the corrugated pipe formed by the splicing of the second pipe 504 and the U-shaped pipe 505 is fixedly connected to the third arc-shaped pipe 507. The third arc-shaped pipe 507 is fixedly connected to the third pipe 5062. The first pipe 502 is fixedly connected to the second heat sink 103 located on the other side of the heat exchanger assembly 1.

[0036] In a preferred embodiment, the outer dimension of the hexagonal lifting ring plate 5069 is clearance-fitted with the inner dimension of the filter cylinder 5061, the diameter of the drain hole 50614 is the same as the inner diameter of the drain pipe 50611, the bottom of the water injection pipe 50612 is connected to the first heat dissipation cylinder 101, the width of the positioning groove 50613 is in a 5:6 ratio to the diameter of the positioning spring 5068, a lifting notch is provided on the inner side of the filter cylinder 5061 near the lifting drain plate 50615, and the cross-sectional dimensions of the lifting notch of the lifting drain plate 50615 and the cross-sectional dimensions of the lifting drain plate 50615 are clearance-fitted.

[0037] The working principle of this invention is as follows: During installation, a tee is connected to the drain pipe 50611, with the branch pipe of the tee located at the top. Solenoid valves are installed at the other two interfaces of the tee. The tilt angle of the equipment is adjusted according to actual processing requirements. During operation, the connecting pipes 3 on both sides of the heat exchanger assembly 1 are connected to the positioning flange 4 to the medium to be processed and the discharge processing medium. The heat exchange medium passes through the positioning round hole 107, through the first heat dissipation cylinder 101 and all the second heat dissipation cylinders 103, effectively reducing the temperature of the medium passing through the equipment. The circulating pump 503 operates, allowing the cooling medium inside the equipment to circulate. The medium enters the first L-shaped pipe 105 and the first arc-shaped pipe 106 through the first heat dissipation cylinder 101, and then flows through the second L-shaped pipe 109 into the first... The second heat sink 103 is adjacent to the heat sink 101. Then, the medium to be processed is injected into another second heat sink 103 through the first L-shaped pipe 105, the first arc-shaped pipe 106 and the second L-shaped pipe 109 at the bottom of the second heat sink 103. The medium to be processed is injected from the side away from the first heat sink 101 and discharged from the side close to the first heat sink 101. This makes the temperature inside the equipment rise from left to right, ensuring the gradual cooling of the medium to be processed. In addition, heat insulation layers are set at the connection between the first heat sink 101 and the second heat sink 103 and at the adjacent connection of the second heat sink 103 to avoid heat transfer. This ensures that the cooling liquid inside the equipment will not be heated at the same time when the processing liquid is replaced by heat, so that the equipment can achieve multi-stage cooling and ensure cooling efficiency.

[0038] The liquid passes through the second arc-shaped pipe 501, the second pipe 504, the U-shaped pipe 505 and the third arc-shaped pipe 507, and then enters the inner side of the filter cylinder 5061 through the third pipe 5062. Then, the liquid passes through the filter screen 50610 to filter impurities in the cooling medium, thereby reducing the wear and corrosion of the graphite heat exchanger by impurities, improving the heat exchange efficiency, ensuring fluid cleanliness, and improving the heat transfer performance of the heat exchanger.

[0039] Prolonged filtration causes filter screen 50610 to become clogged. Since the circulation pump 503 has the same delivery power, the pressure on the hexagonal lifting ring plate 5069 increases, compressing the positioning spring 5068. As the clogging of filter screen 50610 worsens, the bottom of the hexagonal lifting ring plate 5069 gradually moves closer to the positioning disc 5066. During this process, the hexagonal lifting ring plate 5069 gradually blocks the water injection pipe 50612. When the hexagonal lifting ring plate 5069 contacts the cleaning brush 5067, the water injection pipe 50612 is completely blocked. At this point, the drain pipe 50611 overlaps with the drain hole 50614. Then, the servo motor 50... The 65-operation mechanism drives the positioning disc 5066 to rotate, which in turn cleans the filter screen 50610 via the cleaning brush 5067. After cleaning, the valve of the parallel diversion pipe connected to the tee 5011 is opened to discharge the impurities and some cooling medium from the filter screen 50610. At this time, the circulation pump 503 stops working, which reduces the pressure on the top of the hexagonal lifting ring plate 5069. Under the action of the positioning spring 5068, the hexagonal lifting ring plate 5069 returns to its original position. Then, the cooling medium is replenished to the equipment through the top diversion pipe of the tee, which is equal in volume to the discharged volume. This realizes the automatic discharge of impurities from the graphite heat exchanger and the automatic cleaning of the filter screen 50610, making the equipment more intelligent and easier to use.

[0040] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0041] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0042] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 filtration device for a graphite heat exchanger, comprising a heat exchanger assembly (1), characterized in that: Elliptical heads (2) are fixedly connected to both sides of the heat exchanger assembly (1). A connecting pipe (3) is fixedly connected to the side of the elliptical head (2) away from the heat exchanger assembly (1). A positioning flange (4) is fixedly connected to the side of the connecting pipe (3) away from the elliptical head (2). A heat dissipation filter assembly (5) is fixedly connected to the top of the heat exchanger assembly (1). A height-adjustable positioning bracket is installed at the bottom of the heat exchanger assembly (1). The heat exchanger assembly (1) includes a first heat exchange cylinder (101), a sealing ring plate (102) is fixedly connected to the outside of the first heat exchange cylinder (101), a second heat exchange cylinder (103) is fixedly connected to the inside of the sealing ring plate (102), a hexagonal positioning groove (104) is provided on the top of the first heat exchange cylinder (101), a first L-shaped pipe (105) is fixedly connected to the bottom of the first heat exchange cylinder (101), a first arc-shaped pipe (106) is fixedly connected to the end of the first L-shaped pipe (105) away from the first heat exchange cylinder (101), positioning round holes (107) are provided on the sides of the first heat exchange cylinder (101) and the second heat exchange cylinder (103), a heat transfer pipe (108) is fixedly connected to the inside of the positioning round hole (107), and a second L-shaped pipe (109) is fixedly connected to the side of the first arc-shaped pipe (106) away from the first L-shaped pipe (105). The heat dissipation and filtration assembly (5) includes a second arc-shaped pipe (501), a circulation pump (503) is fixedly connected to the top of the second arc-shaped pipe (501), a first pipe (502) is fixedly connected to the top of the circulation pump (503), a second pipe (504) is fixedly connected to the end of the second arc-shaped pipe (501) away from the circulation pump (503), a U-shaped pipe (505) is fixedly connected to the side of the second pipe (504) away from the second arc-shaped pipe (501), a filter assembly (506) is fixedly connected to the top of the first heat dissipation cylinder (101), and a third arc-shaped pipe (507) is fixedly connected to the top of the filter assembly (506). The filter assembly (506) includes a filter cylinder (5061), a third pipe (5062) is fixedly connected to the top of the filter cylinder (5061), a hexagonal lifting ring plate (5069) is provided on the inner side of the filter cylinder (5061), a filter screen (50610) is fixedly connected to the bottom of the inner side of the hexagonal lifting ring plate (5069), a drain pipe (50611) is fixedly connected to one side of the filter cylinder (5061), and a water injection pipe (50612) is fixedly connected to the other side of the filter cylinder (5061). A hexagonal positioning ring plate (5063) is fixedly connected to the bottom of the filter cylinder (5061). A hexagonal sealing plate (5064) is fixedly connected to the top of the hexagonal positioning ring plate (5063). A servo motor (5065) is fixedly connected to the bottom of the hexagonal sealing plate (5064). A positioning disc (5066) is fixedly connected to the output shaft of the servo motor (5065). A cleaning brush (5067) is fixedly connected to the top of the positioning disc (5066). A positioning groove (50613) is provided on the top of the hexagonal positioning ring plate (5063). A positioning spring (5068) is fixedly connected to the bottom of the inner side of the positioning groove (50613). A lifting drain plate (50615) is fixedly connected to one side of the hexagonal lifting ring plate (5069). A drain hole (50614) is provided on one side of the lifting drain plate (50615) and the hexagonal lifting ring plate (5069).

2. The filtration device for a graphite heat exchanger according to claim 1, characterized in that: The first heat sink (101) is fixedly connected to the sealing ring plate (102). Sealing ring plates (102) are provided at the connection points of the first heat sink (101) and the sealing ring plate (102), and at two adjacent connection points of the second heat sink (103). The connection points of the first heat sink (101) and the second heat sink (103), and at two adjacent connection points of the second heat sink (103), are located in the middle of the sealing ring plate (102). The size of the hexagonal positioning groove (104) is adapted to the size of the filter assembly (506). The diameter of the positioning hole (107) and the diameter of the heat transfer pipe (108) are fitted with a clearance. The first L-shaped pipe (105) and the first arc-shaped pipe... (106) and the second L-shaped pipe (109) are respectively connected to the adjacent first heat sink (101) and second heat sink (103) and two adjacent second heat sinks (103). The bottom of the first heat sink (101) is provided with a drain hole. The diameter of the drain hole at the bottom of the first heat sink (101) is adapted to the diameter of the outer side of the first L-shaped pipe (105). The top and bottom of the second heat sink (103) are provided with positioning holes. The diameter of the positioning hole of the second heat sink (103) is adapted to the diameter of the first L-shaped pipe (105). The diameters of the first L-shaped pipe (105), the first arc-shaped pipe (106) and the second L-shaped pipe (109) are the same.

3. The filtration device for a graphite heat exchanger according to claim 1, characterized in that: The second pipe (504) is spliced ​​with the U-shaped pipe (505) to form a corrugated pipe. One end of the corrugated pipe formed by splicing the second pipe (504) and the U-shaped pipe (505) is fixedly connected to the second arc-shaped pipe (501). The other end of the corrugated pipe formed by splicing the second pipe (504) and the U-shaped pipe (505) is fixedly connected to the third arc-shaped pipe (507). The third arc-shaped pipe (507) is fixedly connected to the third pipe (5062). The first pipe (502) is fixedly connected to the second heat sink (103) located on the other side of the heat exchanger assembly (1).

4. The filtration device for a graphite heat exchanger according to claim 1, characterized in that: The outer dimension of the hexagonal lifting ring plate (5069) is clearance-fitted with the inner dimension of the filter cylinder (5061). The diameter of the drain hole (50614) is the same as the inner diameter of the drain pipe (50611). The bottom of the water injection pipe (50612) is connected to the first heat dissipation cylinder (101). The width of the positioning groove (50613) is 5:6 with the diameter of the positioning spring (5068). A lifting notch is provided on the inner side of the filter cylinder (5061) near the lifting drain plate (50615). The cross-sectional dimensions of the lifting notch of the lifting drain plate (50615) and the cross-sectional dimensions of the lifting drain plate (50615) are clearance-fitted.

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