Heat exchanger for chemical production

Abstract

The utility model belongs to the technical field of equipment for chemical production, and particularly relates to a heat exchanger for chemical production, which comprises a base, a heat exchange structure, a water storage tank and a filter tank, the heat exchange structure is mounted above the base, the filter tank is mounted on the side edge of the upper surface of the base, and the water storage tank is mounted on the upper end face of the base. The heat exchange structure comprises a first sealing cover, a first heat exchange tank, a second heat exchange tank and a second sealing cover, and the first sealing cover is fixedly connected with the outer wall of the first heat exchange tank through a flange. Water subjected to heat recovery is filtered in advance through the filter box, so that the working time of the heat exchange pipe can be shortened; meanwhile, the heat exchange structure is arranged in a sectional mode, scale attached to the inner wall of the heat exchange tank and the outer wall of the heat exchange pipe can be cleaned through disassembly, and therefore the heat exchange efficiency of the heat exchanger is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of equipment for chemical production, specifically a heat exchanger for chemical production. Background Technology

[0002] In the chemical production process of synthesizing acetonitrile, high-temperature and high-pressure steam is required to provide heat for the chemical reaction. In order to improve the utilization rate of heat, a corresponding heat exchanger is usually installed in the heat source recovery system to improve the recovery and utilization rate of waste heat and reduce heat loss. In order to improve heat exchange efficiency, a tubular heat exchanger with a large heat exchange area is generally used.

[0003] In existing technologies, after a period of use, scale tends to accumulate on the inner and outer walls of the heat exchange tubes in a heat exchanger, which affects the heat recovery efficiency. Regular cleaning of the heat exchanger is required. However, the scale on the outer wall of the heat exchange tubes is not easy to clean and will still affect the heat recovery efficiency of the heat exchanger. Summary of the Invention

[0004] The purpose of this invention is to provide a heat exchanger for chemical production. By filtering the water for heat recovery in advance through a filter box, the working time of the heat exchange tubes is shortened. At the same time, the heat exchange structure is set in sections, and the scale adhering to the inner wall of the heat exchange tank and the outer wall of the heat exchange tubes can be cleaned by disassembly, thereby improving the heat exchange efficiency of this invention.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a heat exchanger for chemical production is provided, comprising a base, a heat exchange structure, a water storage tank, and a filter box. The heat exchange structure is installed above the base, the filter box is installed on the side of the upper surface of the base, and the water storage tank is installed on the upper end face of the base.

[0006] The heat exchange structure includes a first sealing cover, a first heat exchange tank, a second heat exchange tank, and a second sealing cover. The first sealing cover is fixedly connected to the outer wall of the first heat exchange tank via a flange, and the second sealing cover is fixedly connected to the outer wall of the second heat exchange tank via a flange. The first heat exchange tank is fixedly connected to the outer wall of the second heat exchange tank via a flange.

[0007] The filter box includes a filter assembly, a water quality sensor, and a first output pipe. Multiple filter assemblies are configured and installed inside the filter box. A second output pipe is fixedly connected to the upper end of each filter assembly. The water quality sensor is installed on the outer wall of the second output pipe. A second input pipe is fixedly connected to the lower end of each filter assembly. A third solenoid valve is installed on the outer wall of the second input pipe. The end of the second input pipe away from the filter assembly is fixedly connected to the first input pipe.

[0008] A booster pump is installed on one side of the water storage tank. The output end of the water storage tank is fixedly connected to the input port of the booster pump. The output port of the booster pump is fixedly connected to a water supply pipe. A drain pipe is fixedly connected inside the filter box. A first solenoid valve is installed on the outer wall of the second input pipe. Multiple third output pipes are fixedly connected to the outer wall of the drain pipe. All of the multiple third output pipes are fixedly connected to the outer wall of the second input pipe. Multiple first connecting pipes are fixedly connected to the outer wall of the water supply pipe. A second solenoid valve is installed on the outer wall of the multiple first connecting pipes. The outer walls of the multiple first connecting pipes and the second output pipes are fixedly connected.

[0009] Optionally, the filter assembly includes a filter cylinder, a first mounting plate, and a filter element. The filter cylinder is composed of an upper filter cylinder and a lower filter cylinder connected by a flange. The first mounting plate is fixedly connected to the inside of the filter cylinder via a connecting flange. The filter element is fixedly connected to the inside of the first mounting plate. A second mounting plate is fixedly connected to the inside of the filter cylinder. A vibrator is mounted on the upper end face of the second mounting plate. The inner wall of the second mounting plate is in contact with the outer wall of the filter element. The upper end face of the second input pipe is fixedly connected to the lower end face of the filter cylinder via a connecting flange. The lower end face of the second output pipe is fixedly connected to the upper end face of the filter cylinder via a connecting flange. The vibrator is a piezoelectric waterproof ultrasonic resonator.

[0010] Optionally, a heat exchange tube is installed inside the heat exchange structure, and an assembly is fixedly connected to the inner walls of both the second and first heat exchange tanks. An mounting plate is fixedly connected inside the assembly by bolts. Both ends of the heat exchange tube are connected to the mounting plate. A cold medium input pipe is fixedly connected to the lower end face of the first sealing cover, and the end of the cold medium input pipe away from the first sealing cover is fixedly connected to one end face of the first output pipe.

[0011] Optionally, the outer walls of both the first and second heat exchange tanks are fixedly connected with mating parts, and the upper end face of the base is fixedly connected with a support frame, the support frame and the mating parts being movably connected.

[0012] Optionally, a maintenance plate is fixedly connected inside the filter box, and the maintenance plate is fixedly connected to the filter box by bolts.

[0013] Optionally, a heat medium inlet pipe is fixedly connected to the lower side of the outer wall of the first heat exchange tank, and a heat medium outlet pipe is fixedly connected to the upper side of the outer wall of the second heat exchange tank. The heat medium inlet pipe communicates with the interior of the first heat exchange tank, and the heat medium outlet pipe communicates with the interior of the second heat exchange tank.

[0014] Optionally, a cold medium output pipe is fixedly connected to the upper side of the outer wall of the second sealing cover, and the cold medium output pipe communicates with the interior of the second sealing cover.

[0015] Optionally, the inner walls of the first heat exchange tank and the second heat exchange tank are fixedly connected with flow guiding components, which are arranged in a spiral shape.

[0016] Optionally, a positioning frame is fixedly connected to the inner wall of the first heat exchange tank and the second heat exchange tank, and the heat exchange tube and the inner wall of the positioning frame are in contact.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] In use, this invention filters the water used for heat recovery through multiple filter components. A water quality sensor detects whether the filtration efficiency of the current filter components has reached its limit. A booster pump delivers cleaning water to the corresponding filter components for rinsing. Combined with the high-frequency resonance of a vibrator, impurities attached to the filter elements are efficiently shaken off. Through a corresponding pipeline structure, cleaning water can rinse the filter elements within the filter components, and wastewater is discharged through a drain pipe. This pre-filtration effectively extends the actual working time of the heat exchange tubes within the heat exchange structure. Furthermore, the heat exchange structure is designed by dividing the entire tank into four sections and assembling them with flanges. This design allows for the cleaning of scale adhering to the inner wall of the tank and the outer wall of the heat exchange tubes during equipment maintenance, preventing scale from affecting the efficiency of heat conduction and exchange. The overall structure, through the pre-filtration of the heat recovery water in the filter box, delays the working time of the heat exchange tubes. Additionally, the segmented design of the heat exchange structure allows for disassembly to clean scale adhering to the inner wall of the heat exchange tank and the outer wall of the heat exchange tubes. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a cross-sectional view of the self-cleaning filter structure of this utility model;

[0022] Figure 3 This is a cross-sectional view of the heat exchanger of this utility model;

[0023] Figure 4 This is a schematic diagram of the self-cleaning filter structure of this utility model;

[0024] Figure 5This is a cross-sectional view of the filter assembly of this utility model.

[0025] In the diagram: 1. Base; 2. Cold medium output pipe; 3. Cold medium input pipe; 4. Heat exchange structure; 41. First sealing cover; 42. First heat exchange tank; 43. Second heat exchange tank; 44. Second sealing cover; 45. Assembly parts; 46. Mounting plate; 47. Heat exchange tube; 48. Flow guiding assembly; 49. Positioning frame; 5. Hot medium output pipe; 6. Support frame; 7. Mating parts; 8. First input pipe; 9. Filter box; 10. Inspection plate; 11. First output pipe; 12. Heat exchanger... 13. Medium input pipe; 14. Second input pipe; 15. Filter assembly; 16. Filter cartridge; 17. First assembly plate; 18. Filter element; 19. Vibrator; 10. Second assembly plate; 11. Water quality sensor; 12. Water storage tank; 13. Booster pump; 14. Water supply pipe; 15. Sewage pipe; 26. First solenoid valve; 27. Second solenoid valve; 28. Third solenoid valve; 29. ​​First connecting pipe; 20. Second output pipe; 21. Third output pipe. Detailed Implementation

[0026] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0028] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] The present invention provides a heat exchanger for chemical production according to an embodiment of the present invention. Please refer to [link / reference]. Figures 1 to 5 A heat exchanger for chemical production includes a base 1, a heat exchange structure 4, a water storage tank 16, and a filter box 9. The heat exchange structure 4 is installed above the base 1, the filter box 9 is installed on the side of the upper surface of the base 1, and the water storage tank 16 is installed on the upper end face of the base 1.

[0031] The heat exchange structure 4 includes a first sealing cover 41, a first heat exchange tank 42, a second heat exchange tank 43, and a second sealing cover 44. The first sealing cover 41 is fixedly connected to the outer wall of the first heat exchange tank 42 through a flange, and the second sealing cover 44 is fixedly connected to the outer wall of the second heat exchange tank 43 through a flange. The first heat exchange tank 42 is fixedly connected to the outer wall of the second heat exchange tank 43 through a flange.

[0032] The filter box 9 includes a filter assembly 14, a water quality sensor 15, and a first output pipe 11. Multiple filter assemblies 14 are configured, and all multiple filter assemblies 14 are installed inside the filter box 9. A second output pipe 24 is fixedly connected to the upper end face of the filter assembly 14. The water quality sensor 15 is installed on the outer wall of the second output pipe 24. A second input pipe 13 is fixedly connected to the lower end face of the filter assembly 14. A third solenoid valve 22 is installed on the outer wall of the second input pipe 13. A first input pipe 8 is fixedly connected to the end of the second input pipe 13 away from the filter assembly 14.

[0033] A booster pump 17 is installed on one side of the water storage tank 16. The output end of the water storage tank 16 is fixedly connected to the input port of the booster pump 17. The output port of the booster pump 17 is fixedly connected to the water supply pipe 18. A drain pipe 19 is fixedly connected inside the filter box 9. A first solenoid valve 20 is installed on the outer wall of the second input pipe 13. Multiple third output pipes 25 are fixedly connected to the outer wall of the drain pipe 19. All of the multiple third output pipes 25 are fixedly connected to the outer wall of the second input pipe 13. Multiple first connecting pipes 23 are fixedly connected to the outer wall of the water supply pipe 18. A second solenoid valve 21 is installed on the outer wall of the multiple first connecting pipes 23. The multiple first connecting pipes 23 are fixedly connected to the outer wall of the second output pipe 24. The water storage tank 16, booster pump 17, water supply pipe 18, first connecting pipe 23, second solenoid valve 21, filter assembly 14, water quality detection sensor 15, second output pipe 24, third output pipe 25, and drain pipe 19 constitute a self-cleaning filter structure. The water storage tank 16 is used to store water for cleaning the filter assembly 14; the booster pump 17 is used to pump the water in the water storage tank 16 into the filter assembly 14 along the water supply pipe 18; by installing multiple filter assemblies 14 inside the filter box 9, the water input into the heat exchange structure 4 can be filtered in advance through the filter assembly 14; the water quality detection sensor 15 is used to determine whether the filtration effect of the corresponding filter assembly 14 has decreased, so that the filter element 143 inside the filter assembly 14 that has reached the filtration limit can be replaced; the first solenoid valve 20 and the third solenoid valve 22 are controlled by a switch to control whether the corresponding filter assembly 14 filters clean water; the second solenoid valve 21 is controlled by a switch to control the water in the water storage tank 16 to enter the corresponding filter assembly 14 along the water supply pipe 18 through the first connecting pipe 23, and enter the sewage pipe 19 along the third output pipe 25 to carry away the sewage.

[0034] In this embodiment of the utility model, please refer to Figures 1 to 5The filter assembly 14 includes a filter cylinder 141, a first mounting plate 142, and a filter element 143. The filter cylinder 141 is composed of an upper filter cylinder and a lower filter cylinder connected by a flange. The first mounting plate 142 is fixedly connected to the inside of the filter cylinder 141 by a connecting flange. The filter element 143 is fixedly connected to the inside of the first mounting plate 142. A second mounting plate 145 is fixedly connected to the inside of the filter cylinder 141. A vibrator 144 is installed on the upper end face of the second mounting plate 145. The inner wall of the second mounting plate 145 is in contact with the outer wall of the filter element 143. The upper end face of the second input pipe 13 is fixedly connected to the lower end face of the filter cylinder 141 by a connecting flange. The lower end face of the second output pipe 24 is fixedly connected to the upper end face of the filter cylinder 141 by a connecting flange. The vibrator 144 is a piezoelectric waterproof ultrasonic resonator. When the filter element 143 inside the filter assembly 14 needs to be replaced, first disassemble the connecting flange of the second input pipe 13 and the connecting flange of the second output pipe 24, remove the filter assembly 14, then disassemble the connecting flange of the filter cylinder 141, remove the filter cylinder 141, remove the connecting flange of the first assembly plate 142 and the filter cylinder 141, remove the first assembly plate 142 and the filter element 143, and install the new filter element 143 and the first assembly plate 142. Repeat the above disassembly operation in reverse order, and reinstall the filter assembly 14 after replacing the filter element 143, thereby extending the working time of the heat exchange tube 47 in the heat exchange structure 4. The vibrator 144 is a piezoelectric waterproof ultrasonic resonator. When working, it can drive the second assembly plate 145 and the filter element 143 to perform ultrasonic high-frequency vibration, shaking off the impurities attached to the filter element 143.

[0035] In this embodiment of the utility model, please refer to Figures 1 to 5The heat exchange structure 4 is equipped with heat exchange tubes 47. The inner walls of the second heat exchange tank 43 and the first heat exchange tank 42 are fixedly connected with fittings 45. The fittings 45 are fixedly connected with mounting plates 46 by bolts. The two ends of the heat exchange tubes 47 are connected to the mounting plates 46. The lower end face of the first sealing cover 41 is fixedly connected with a cold medium input pipe 3. The end of the cold medium input pipe 3 away from the first sealing cover 41 is fixedly connected to the side end face of the first output pipe 11. The first sealing cover 41 and the first heat exchange tank 42 are sealed together by a flange structure. The first heat exchange tank 42 and the second heat exchange tank 43 are sealed together by a flange structure. The second heat exchange tank 43 and the second sealing cover 44 are sealed together by a flange structure, thereby ensuring the airtightness of the heat exchange structure 4 after assembly. When it is necessary to clean the scale adhering to the inner wall of the heat exchange structure 4 tank and the inner and outer walls of the heat exchange tube 47, firstly, remove the outer first sealing cover 41 and the second sealing cover 44. Then, loosen the sealing connection between the mounting plates 46 at both ends of the heat exchange tube 47 and the mounting accessories 45 by removing the bolts on the mounting accessories 45. Next, disassemble the first heat exchange tank 42 and the second heat exchange tank 43 to make them slide apart. At this time, the scale adhering to the inner wall of the heat exchange structure 4 tank and the inner and outer walls of the heat exchange tube 47 can be cleaned.

[0036] In this embodiment of the utility model, please refer to Figures 1 to 5 The outer walls of both the first heat exchange tank 42 and the second heat exchange tank 43 are fixedly connected to mating parts 7. The upper end face of the base 1 is fixedly connected to a support frame 6, and the support frame 6 and the mating parts 7 are movably connected. The upper end of the support frame 6 is configured with a supporting semi-circular hoop and a locking semi-circular hoop that is rotatably connected to the supporting semi-circular hoop. The two are fixedly connected by a flange structure on one side. When installing the heat exchange structure 4, the mating parts 7 on the outer wall of the heat exchange structure 4 can be locked by the semi-circular hoop on the support frame 6.

[0037] In this embodiment of the utility model, please refer to Figures 1 to 5 A maintenance plate 10 is fixedly connected inside the filter box 9, and the maintenance plate 10 is fixedly connected to the filter box 9 by bolts. By setting the maintenance plate 10 inside the filter box 9, the maintenance plate 10 can be disassembled and assembled by removing and assembling the bolts. After the maintenance plate 10 is disassembled, the components inside the filter box 9 can be inspected and maintained.

[0038] In this embodiment of the utility model, please refer to Figures 1 to 5A heat medium inlet pipe 12 is fixedly connected to the lower outer wall of the first heat exchange tank 42, and a heat medium outlet pipe 5 is fixedly connected to the upper outer wall of the second heat exchange tank 43. The heat medium inlet pipe 12 communicates with the interior of the first heat exchange tank 42, and the heat medium outlet pipe 5 communicates with the interior of the second heat exchange tank 43. By setting the heat medium inlet pipe 12, high-temperature heat medium can be input into the interior of the first heat exchange tank 42 and the second heat exchange tank 43 along the heat medium inlet pipe 12. The heat medium outlet pipe 5 can output the heat medium after heat recovery.

[0039] In this embodiment of the utility model, please refer to Figures 1 to 5 A cold medium output pipe 2 is fixedly connected to the upper side of the outer wall of the second sealing cover 44, and the cold medium output pipe 2 communicates with the interior of the second sealing cover 44. By setting the cold medium output pipe 2, it is convenient to output the cold medium water after heat recovery through the cold medium output pipe 2.

[0040] In this embodiment of the utility model, please refer to Figures 1 to 5 A flow guiding component 48 is fixedly connected to the inner wall of the first heat exchange tank 42 and the second heat exchange tank 43. The flow guiding component 48 is arranged in a spiral shape. By installing the flow guiding component 48 in a spiral shape on the inner wall of the first heat exchange tank 42 and the second heat exchange tank 43, the heat medium flowing through the first heat exchange tank 42 and the second heat exchange tank 43 can be guided into a spiral flow form, thereby improving the heat exchange efficiency between the heat medium and the cold medium.

[0041] In this embodiment of the utility model, please refer to Figures 1 to 5 A positioning frame 49 is fixedly connected to the inner wall of the first heat exchange tank 42 and the second heat exchange tank 43, and the heat exchange tube 47 is in contact with the inner wall of the positioning frame 49. The positioning frame 49 installed in the first heat exchange tank 42 and the second heat exchange tank 43 supports the heat exchange tube 47 in the first heat exchange tank 42 and the second heat exchange tank 43.

[0042] Working Principle: In use, the first solenoid valve 20 and the third solenoid valve 22 are opened by the control terminal. The high-temperature hot medium enters the interior of the first heat exchange tank 42 and the second heat exchange tank 43 through the corresponding conveying structure along the hot medium input pipe 12. Under the guidance of the flow guiding component 48 on the inner wall of the first heat exchange tank 42 and the second heat exchange tank 43, the hot medium will rotate and flow around the heat exchange tube 47 in the heat exchange structure 4, improving the heat exchange efficiency between the hot medium and the cold medium in the heat exchange tube 47. The cold medium water enters the first input pipe 8 under the pumping action of the pumping equipment, and enters the interior of multiple filter components 14 through multiple open second input pipes 13. After entering the filter cylinder 141, the cold medium water is filtered by the filter element 143. After impurities are filtered out, the filtered cold medium water enters the second output pipe 24 along the filter assembly 14, passes through multiple water quality detection sensors 15 and enters the first output pipe 11. Finally, it enters the interior of the first sealing cover 41 along the cold medium input pipe 3 that is connected to the first output pipe 11. The cold medium entering the first sealing cover 41 will enter the interior of the heat exchange tube 47 through the inlet on the mounting plate 46 and exchange heat with the hot medium rotating outside the heat exchange tube 47. After heat exchange, the cold medium enters the interior of the second sealing cover 44 through the outlet of the heat exchange tube 47 and is discharged through the cold medium output pipe 2 on the second sealing cover 44. At this time, the hot medium that has completed the heat exchange will also be discharged along the hot medium output pipe 5 on the second heat exchange tank 43, thus completing the heat exchange process.

[0043] When the water quality sensor 15 detects that the quality of the cold medium water is below a certain standard, it will send the detection information to the control terminal. At this time, the control terminal can control the first solenoid valve 20 and the third solenoid valve 22 of the corresponding water quality sensor 15 to close, control the second solenoid valve 21 of the corresponding water quality sensor 15 to open, control the booster pump 17 to start, and control the vibrator 144 of the corresponding water quality sensor 15 to operate. The operating booster pump 17 can make the water in the storage tank 16... The water is pumped along the water supply pipe 18 through the corresponding open first connecting pipe 23 into the filter assembly 14 of the corresponding water quality detection sensor 15. The vibrator 144 drives the second assembly plate 145 and the filter element 143 to perform high-frequency ultrasonic resonance. The vibrating filter element 143 shakes off the impurities attached to it. The shaken-off impurities and wastewater finally enter the sewage pipe 19 through the second input pipe 13 and the third output pipe 25, completing the cleaning of the corresponding filter assembly 14. At the same time, the normal operation of the filter structure will not be affected when cleaning the filter assembly 14.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat exchanger for chemical production, comprising a base (1), a heat exchange structure (4), a water storage tank (16) and a filter tank (9), characterized in that: The heat exchange structure (4) is installed above the base (1), the filter box (9) is installed on the upper surface side of the base (1), and the water storage tank (16) is installed on the upper end surface of the base (1); The heat exchange structure (4) comprises a first sealing cover (41), a first heat exchange tank (42), a second heat exchange tank (43) and a second sealing cover (44), the first sealing cover (41) is fixedly connected with the outer wall of the first heat exchange tank (42) through a flange, the second sealing cover (44) is fixedly connected with the outer wall of the second heat exchange tank (43) through a flange, and the first heat exchange tank (42) is fixedly connected with the outer wall of the second heat exchange tank (43) through a flange; The filter box (9) comprises a filter assembly (14), a water quality detection sensor (15) and a first output pipe (11), the filter assembly (14) is provided in a plurality of forms, the plurality of filter assemblies (14) are all installed inside the filter box (9), the upper end surface of the filter assembly (14) is fixedly connected with a second output pipe (24), the water quality detection sensor (15) is installed on the outer wall of the second output pipe (24), the lower end surface of the filter assembly (14) is fixedly connected with a second input pipe (13), the outer wall of the second input pipe (13) is installed with a third electromagnetic valve (22), and one end of the second input pipe (13) away from the filter assembly (14) is fixedly connected with a first input pipe (8); One side of the water storage tank (16) is installed with a booster water feeding pump (17), one side output end of the water storage tank (16) and an input port of the booster water feeding pump (17) are fixedly connected, an output port of the booster water feeding pump (17) is fixedly connected with a water feeding pipe (18), the inside of the filter box (9) is fixedly connected with a blowdown pipe (19), the outer wall of the second input pipe (13) is installed with a first electromagnetic valve (20), the outer wall of the blowdown pipe (19) is fixedly connected with a plurality of third output pipes (25), the plurality of third output pipes (25) are all fixedly connected with the outer wall of the second input pipe (13), the outer wall of the water feeding pipe (18) is fixedly connected with a plurality of first connecting pipes (23), the outer wall of the plurality of first connecting pipes (23) is installed with a second electromagnetic valve (21), and the outer wall of the plurality of first connecting pipes (23) and the second output pipe (24) is fixedly connected.

2. The heat exchanger for chemical production according to claim 1, characterized in that: The filter assembly (14) comprises a filter cartridge (141), a first assembly plate (142) and a filter core (143), the filter cartridge (141) is composed of an upper filter cartridge and a lower filter cartridge through a flange connection, the first assembly plate (142) is fixedly connected inside the filter cartridge (141) through a connecting flange, the filter core (143) is fixedly connected inside the first assembly plate (142), a second assembly plate (145) is fixedly connected inside the filter cartridge (141), a vibrator (144) is installed on the upper end face of the second assembly plate (145), the inner wall of the second assembly plate (145) and the outer wall of the filter core (143) are in close contact, the upper end face of the second input pipe (13) is fixedly connected with the lower end face of the filter cartridge (141) through a connecting flange, the lower end face of the second output pipe (24) is fixedly connected with the upper end face of the filter cartridge (141) through a connecting flange, and the vibrator (144) is a waterproof ultrasonic resonator of piezoelectric type.

3. The heat exchanger for chemical production according to claim 1, characterized in that: The heat exchange structure (4) is internally provided with a heat exchange pipe (47), the inner walls of the second heat exchange tank (43) and the first heat exchange tank (42) are fixedly connected with assembly parts (45), the inside of the assembly part (45) is fixedly connected with a mounting plate (46) through a bolt, the two ends of the heat exchange pipe (47) are connected with the mounting plate (46) in a penetrating manner, the lower end face of the first sealing cover (41) is fixedly connected with a cold medium input pipe (3), and one end of the cold medium input pipe (3) away from the first sealing cover (41) is fixedly connected with one side end face of the first output pipe (11).

4. The heat exchanger for chemical production according to claim 1, characterized in that: The outer walls of the first heat exchange tank (42) and the second heat exchange tank (43) are fixedly connected with matching parts (7), the upper end face of the base (1) is fixedly connected with a support frame (6), and the support frame (6) is movably connected with the matching parts (7).

5. A heat exchanger for use in chemical production as claimed in claim 1, characterized in that: The inside of the filter box (9) is fixedly connected with an inspection plate (10), and the inspection plate (10) is fixedly connected with the filter box (9) through a bolt.

6. A heat exchanger for use in chemical production as claimed in claim 1, characterized in that: The lower side of the outer wall of the first heat exchange tank (42) is fixedly connected with a heat medium input pipe (12), the upper side of the outer wall of the second heat exchange tank (43) is fixedly connected with a heat medium output pipe (5), the heat medium input pipe (12) penetrates the inside of the first heat exchange tank (42), and the heat medium output pipe (5) penetrates the inside of the second heat exchange tank (43).

7. A heat exchanger for use in chemical production as claimed in claim 1, characterized in that: The upper side of the outer wall of the second sealing cover (44) is fixedly connected with a cold medium output pipe (2), and the cold medium output pipe (2) penetrates the inside of the second sealing cover (44).

8. A heat exchanger for use in chemical production as claimed in claim 1, characterized in that: The inner walls of the first heat exchange tank (42) and the second heat exchange tank (43) are fixedly connected with a flow guide assembly (48), and the flow guide assembly (48) is arranged in a spiral shape.

9. A heat exchanger for use in chemical production as claimed in claim 3, characterized in that: The inner walls of the first heat exchange tank (42) and the second heat exchange tank (43) are fixedly connected with a positioning frame (49), and the inner walls of the heat exchange pipe (47) and the positioning frame (49) are in close contact.

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