Condenser cleaning device and method of use thereof

Abstract

The application provides a condenser cleaning device and a use method thereof, which comprises a liquid storage tank, double liquid inlet pipes, double liquid return pipes, double pneumatic agitators, a liquid inlet flange and a liquid return flange, the liquid storage tank is integrated with a tank body, a water pump and a filter element, the liquid inlet flange is provided with a safety valve, the liquid return flange is provided with an air inlet joint, and each pipe joint is a quick joint. In use, the device is sealed and connected with the condenser flange, cleaning liquid is injected through the double liquid inlet pipes, the pneumatic agitators pass high-pressure airflow to make the cleaning liquid form turbulent flow, synchronous cleaning of the inside and outside of the tube bundle is realized, and then the liquid is returned and filtered through the double liquid return pipes, and after the circulation cleaning, the device is flushed with clean water. The application does not need to disassemble the condenser, has no cleaning dead angle, has high cleaning efficiency, can avoid deformation of the tube bundle and cracking of the weld, the cleaning liquid can be recycled, is harmless to waste liquid and solid waste, and is suitable for cleaning of various industrial condensers, especially large and complex structure condensers.

Description

Technical Field

[0001] This invention relates to the field of heat exchange equipment cleaning technology, and in particular to a condenser cleaning device and its usage method. Background Technology

[0002] As a core heat exchange device in industrial production, condensers typically contain a large number of tubes, with some large condensers having thousands of tubes arranged in a complex manner. During long-term use, dust, sludge, and other impurities easily accumulate on the outer surface of the tubes, while scale forms inside the tubes. This fouling severely reduces the heat exchange efficiency of the condenser and affects the normal operation of the equipment.

[0003] Currently, the industry mainly cleans condensers by disassembling the shell, removing the tubes, and then rinsing with high-pressure cleaning agents. This cleaning method has many drawbacks: First, the high-pressure cleaning agent is easily blocked by the outer tubes and cannot reach the outer surface of the inner tubes, creating cleaning dead zones; second, the contact between the tubes and the cleaning agent is insufficient, making it difficult to completely remove scale; third, the operation of disassembling the shell and cleaning each tube individually takes a very long time, seriously affecting the normal production schedule of enterprises; fourth, the tubes are prone to deformation after being separated from the shell for a long time, and the welds between the tubes and the shell are prone to cracking, leading to safety hazards in the subsequent use of the equipment.

[0004] In view of the above-mentioned shortcomings of existing condenser cleaning technologies, there is an urgent need to develop a cleaning device and matching usage method that can achieve all-round cleaning of the inside and outside of the tubes without disassembling the condenser, with high cleaning efficiency and no damage to the equipment. Summary of the Invention

[0005] The purpose of this invention is to provide a condenser cleaning device and its usage method, which enables integrated cleaning of the inside and outside of the tubes of the condenser without disassembling it, thus solving the problems of incomplete cleaning, long working time, and easy damage to equipment in existing cleaning methods.

[0006] According to one objective of the present invention, a condenser cleaning apparatus is provided, comprising: A storage tank, including a tank body, a water pump, and a filter element, is used for the storage, supply, and recycling of cleaning fluid; The first inlet pipe has one end connected to the outlet of the storage tank and the other end sealed to the inlet of the outside of the condenser tubes through an inlet flange, and is used to transport cleaning fluid to the outside of the condenser tubes. The second inlet pipe has one end connected to the outlet of the storage tank and the other end sealed to the inlet of the condenser tubes through an inlet flange, for conveying cleaning fluid to the inside of the condenser tubes. The first return pipe has one end sealed to the return port outside the condenser tubes via a return flange, and the other end connected to the return end of the storage tank, for returning the cleaning fluid outside the condenser tubes. The second return pipe has one end sealed to the return port inside the condenser tubes via a return flange, and the other end connected to the return end of the storage tank, for returning the cleaning fluid inside the condenser tubes. The first pneumatic stirrer has its outlet end connected to the air inlet outside the condenser tubes, and is used to provide high-pressure airflow to the outside of the condenser tubes. The second pneumatic stirrer has its outlet end connected to the inlet inside the condenser tubes, and is used to provide high-pressure airflow inside the condenser tubes.

[0007] Furthermore, the volume of the liquid storage tank is larger than the volume of the condenser, the water pump is located at the bottom inside the tank, and the filter element is detachably connected to the return end of the tank.

[0008] Furthermore, the first inlet pipe, the second inlet pipe, the first return pipe, and the second return pipe each include a pipeline and a manual ball valve. The pipeline is a rubber hose, and the manual ball valve is used to control the on / off state of each pipeline and the flow rate of the cleaning fluid.

[0009] Furthermore, the inlet flange includes a flange body, two inlet connectors and a safety valve. The inlet connectors are respectively sealed to the first inlet pipe and the second inlet pipe, and the safety valve is located at the top of the flange body.

[0010] Furthermore, the return flange includes a flange body, two return connectors and two air inlet connectors. The return connectors are respectively sealed to the first return pipe and the second return pipe, and the air inlet connectors are respectively sealed to the air outlets of the first pneumatic agitator and the second pneumatic agitator.

[0011] Furthermore, the liquid inlet connector, the liquid return connector, and the air inlet connector are all quick connectors.

[0012] Furthermore, the high-pressure airflow output by the first pneumatic agitator and the second pneumatic agitator is 0.4-0.6 MPa; the water pump is a submersible sewage pump; the filter element is an asbestos filter element; and the tank is a steel tank.

[0013] A method of using the above-mentioned condenser cleaning device includes the following steps: S1. Device docking: Seal the liquid inlet flange to the liquid inlet flange of the condenser, and seal the liquid return flange to the liquid return flange of the condenser to ensure that there is no leakage at the connection. S2. Pipeline adjustment: Close the manual ball valves of the first return pipe and the second return pipe, and open the manual ball valves of the first inlet pipe and the second inlet pipe; S3. Liquid injection operation: Start the water pump to deliver cleaning fluid to the inside and outside of the condenser tubes. When the amount of cleaning fluid injected reaches 90%-95% of the condenser volume, close the manual ball valve of the inlet pipe and stop the water pump. S4. Stirring and cleaning: Start the first and second pneumatic stirrers and introduce high-pressure airflow into the inside and outside of the condenser tubes, and maintain stirring and cleaning for 5-15 minutes. S5. Return liquid filtration: Open the manual ball valves of the first and second return liquid pipes to allow the cleaning liquid to flow back to the storage tank and be filtered through the filter element. S6. Circulation cleaning: Repeat steps S2-S5 until the dirt inside and outside the condenser tubes is completely removed. S7. Rinse with clean water: Recover the cleaning fluid in the storage tank, inject clean water and repeat steps S2-S5 to rinse the inside and outside of the condenser tubes 2-3 times.

[0014] Furthermore, after step S5, there is a filter element replacement step: the filter element on the storage tank is replaced according to the dirt content of the reflux cleaning fluid; the cleaning fluid is a low-corrosion acid solution adapted to the actual working conditions of the condenser, and the cleaning fluid can be repeatedly recycled after being filtered by the filter element.

[0015] Furthermore, a harmless treatment step is included: the returned waste cleaning liquid and the solid dirt filtered out by the filter element are recovered; the waste cleaning liquid is treated by alkali neutralization to a pH value of 7 before being discharged in compliance with standards; the solid dirt is dried, pulverized, and then disposed of harmlessly; when the condenser volume is 2m³ 3 At that time, the cleaning fluid injection volume was 1.8m. 3 The output airflow pressure of the first and second pneumatic agitators is 0.5 MPa, and the agitation and cleaning time is 10 minutes.

[0016] The technical solution of this invention utilizes dual inlet and dual return pipes to separately deliver and return the cleaning fluid to the inside and outside of the condenser tubes. Combined with dual pneumatic agitators, a high-pressure airflow is provided to the inside and outside of the tubes, creating turbulence in the cleaning fluid and achieving simultaneous cleaning of the inside and outside of the tubes, eliminating cleaning dead zones. The device is sealed to the condenser via inlet and return flanges, eliminating the need to disassemble the condenser and avoiding problems such as tube deformation and weld cracking. The storage tank integrates storage, supply, and return filtration functions, with a compact overall structure design, achieving integrated cleaning of the condenser without disassembly, significantly improving cleaning efficiency and protecting the structural integrity of the equipment. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the condenser cleaning device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the liquid storage tank according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the liquid inlet flange according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the return flange in an embodiment of the present invention.

[0019] In the diagram: 1. Storage tank; 11. Tank body; 12. Water pump; 13. Filter element; 2. First inlet pipe; 3. Second inlet pipe; 4. First return pipe; 5. Second return pipe; 6. First pneumatic agitator; 7. Second pneumatic agitator; 8. Inlet flange; 81. Flange body; 82. Inlet connector; 83. Safety valve; 9. Return flange; 91. Flange body; 92. Return connector; 93. Air inlet connector; 10. Condenser. Detailed Implementation

[0020] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention 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 limiting this invention.

[0022] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] Example 1 like Figures 1-4 As shown, a condenser cleaning device includes a liquid storage tank 1, a first liquid inlet pipe 2, a second liquid inlet pipe 3, a first liquid return pipe 4, a second liquid return pipe 5, a first pneumatic agitator 6, a second pneumatic agitator 7, a liquid inlet flange 8, and a liquid return flange 9. The storage tank 1 includes a tank body 11, a water pump 12 and a filter element 13, and is used for the storage, supply and recycling of cleaning fluid; One end of the first inlet pipe 2 is connected to the outlet end of the storage tank 1, and the other end is sealed to the inlet of the outside of the condenser 10 tubes through the inlet flange 8, which is used to transport the cleaning fluid to the outside of the condenser 10 tubes. One end of the second inlet pipe 3 is connected to the outlet end of the storage tank 1, and the other end is sealed to the inlet of the condenser 10 tubes through the inlet flange 8, which is used to transport the cleaning fluid to the inside of the condenser 10 tubes. One end of the first return pipe 4 is sealed to the return port outside the tubes of the condenser 10 via the return flange 9, and the other end is connected to the return end of the storage tank 1, which is used to return the cleaning liquid outside the tubes of the condenser 10 to the storage tank 1. One end of the second return pipe 5 is sealed to the return port inside the tubes of the condenser 10 via the return flange 9, and the other end is connected to the return end of the storage tank 1, which is used to return the cleaning fluid inside the tubes of the condenser 10 to the storage tank 1. The outlet of the first pneumatic stirrer 6 is connected to the inlet of the outside of the tubes of the condenser 10, and is used to provide high-pressure airflow to the outside of the tubes of the condenser 10, so that the cleaning fluid forms turbulence to efficiently remove dirt from the outside of the tubes. The outlet of the second pneumatic stirrer 7 is connected to the inlet of the tubes inside the condenser 10, and is used to provide high-pressure airflow to the tubes inside the condenser 10, so that the cleaning fluid forms turbulence to efficiently remove dirt inside the tubes. The liquid inlet flange 8 is matched and connected to the liquid inlet side flange of the condenser 10, and the liquid return flange 9 is matched and connected to the liquid return side flange of the condenser 10 to achieve a sealed connection between the device and the condenser.

[0024] Specifically, the volume of the liquid storage tank 1 is larger than that of the condenser 10, ensuring that the cleaning fluid can fully fill the inside and outside of the condenser tubes, with no blind spots in cleaning.

[0025] The first inlet pipe 2, the second inlet pipe 3, the first return pipe 4, and the second return pipe 5 all include pipes and valves. The valves are manual ball valves, used to precisely control the on / off state of each pipe and the flow rate of the cleaning fluid.

[0026] The liquid inlet flange 8 includes a flange body 81, a liquid inlet connector 82, and a safety valve 83. There are two liquid inlet flanges 8, which are respectively sealed to the first liquid inlet pipe 2 and the second liquid inlet pipe 3. The safety valve 83 is located at the top of the flange body 81 and is used to discharge excess gas from inside the condenser to prevent excessive internal pressure. The opening pressure of the safety valve 83 is 0.15 MPa. When the internal pressure of the condenser exceeds this threshold, it automatically opens to release gas, ensuring safety during the equipment cleaning process.

[0027] The return flange 9 includes a flange body 91, a return connector 92, and an air inlet connector 93. There are two return flanges 9, which are respectively sealed and connected to the first return pipe 4 and the second return pipe 5. There are two air inlet connectors 93, which are respectively sealed and connected to the air outlet of the first pneumatic agitator 6 and the second pneumatic agitator 7.

[0028] Liquid inlet connector 82, liquid return connector 92, and air inlet connector 93 are all quick-connect connectors, enabling quick assembly and disassembly of pipelines and flanges, thus improving the preparation efficiency of cleaning operations.

[0029] The filter element 13 is a quick-replaceable filter element. The filter element 13 can be detachably connected to the return liquid end of the tank 11. The number of filter elements 13 matches the number of return liquid pipes. It is used to filter solid dirt in the return cleaning liquid and prevent dirt from re-entering the condenser and causing secondary pollution.

[0030] The water pump 12 is located at the bottom inside the tank 11. The water pump 12 is a sewage submersible pump, and the number of water pumps 12 matches the number of inlet pipes, which can adapt to the delivery of cleaning fluid containing a small amount of impurities and improve the service life of the water pump.

[0031] The airflow pressure output by the first pneumatic agitator 6 and the second pneumatic agitator 7 is 0.4-0.6MPa. The airflow pressure can be adjusted according to the degree of dirt adhesion on the condenser, taking into account both cleaning effect and equipment protection.

[0032] The tank body 11 is a steel tank body, the filter element 13 is an asbestos filter element, and the pipes of the first liquid inlet pipe 2, the second liquid inlet pipe 3, the first liquid return pipe 4, and the second liquid return pipe 5 are all rubber hoses.

[0033] The method of using the above-mentioned condenser cleaning device includes the following steps: S1. Device docking: Seal and connect the liquid inlet flange 8 to the liquid inlet flange of the condenser 10, and seal and connect the liquid return flange 9 to the liquid return flange of the condenser 10 to ensure that there is no leakage at each connection point. S2. Pipeline adjustment: Close the valves of the first return pipe 4 and the second return pipe 5, and open the valves of the first inlet pipe 2 and the second inlet pipe 3; S3. Liquid injection operation: Start water pump 12 to deliver cleaning fluid to the outside and inside of the tubes of condenser 10. When the amount of cleaning fluid injected reaches 90%-95% of the volume of condenser 10, close the inlet valve and stop water pump 12. S4. Stirring and cleaning: Start the first pneumatic stirrer 6 and the second pneumatic stirrer 7, and introduce high-pressure airflow into the inside and outside of the condenser 10 tubes, and maintain stirring and cleaning for 5-15 minutes. S5. Return liquid filtration: Open the valves of the first return liquid pipe 4 and the second return liquid pipe 5 to allow the cleaning liquid to flow back to the storage tank 1 and be filtered by the filter element 13. After filtration by the filter element, solid-liquid separation is completed. S6. Circulation cleaning: Repeat steps S2-S5 until the dirt inside and outside the 10 tubes of the condenser is completely removed. S7. Rinse with clean water: Recover the cleaning fluid in the storage tank 1, inject clean water and repeat steps S2-S5 to rinse the inside and outside of the condenser 10 tubes 2-3 times to remove residual cleaning fluid.

[0034] Step S5 is followed by a filter element replacement step: based on the dirt content of the return cleaning fluid, replace the filter element 13 in the storage tank 1 to avoid filter element blockage affecting the filtration effect.

[0035] The cleaning fluid is selected based on the actual operating conditions of the condenser 10. The cleaning fluid is an inexpensive acid with low corrosiveness, which can effectively remove scale and avoid corrosion of the condenser tubes. The cleaning fluid can be repeatedly recycled. After being filtered by the filter element to remove solid dirt, it can be sent to the condenser for cleaning again, reducing cleaning costs.

[0036] The present invention also includes a harmless treatment step: the returned cleaning liquid and the solid dirt filtered by the filter element 13 are recovered, the waste cleaning liquid is treated by alkali neutralization and then discharged, and the solid dirt is dried, crushed and then disposed of harmlessly to avoid environmental pollution.

[0037] In step S3, pump 12 consists of two submersible sewage pumps. When the volume of condenser 10 is 2m³, 3At that time, the injection volume of the cleaning fluid was 1.8m. 3 In step S4, the output airflow pressure of the first pneumatic stirrer 6 and the second pneumatic stirrer 7 is 0.5 MPa.

[0038] Example 2 like Figures 1-4 As shown, a condenser cleaning device includes a storage tank 1, a first inlet pipe 2, a second inlet pipe 3, a first return pipe 4, a second return pipe 5, a first pneumatic agitator 6, a second pneumatic agitator 7, an inlet flange 8, and a return flange 9. The storage tank 1 includes a steel tank body 11, two submersible sewage pumps 12, and two asbestos filter elements 13. The pumps 12 are located at the bottom inside the tank body 11, and the filter elements 13 are detachably connected to the return end of the tank body 11. The condenser 10 has a volume of 2m³. 3 The volume of storage tank 1 is 3m³. 3 The volume should be greater than 10 times that of the condenser to ensure that the cleaning fluid is fully filled. The first inlet pipe 2, the second inlet pipe 3, the first return pipe 4, and the second return pipe 5 are all composed of rubber hoses and manual ball valves to achieve precise control of the pipe opening and closing. The inlet flange 8 includes a flange body 81, two quick-connect inlet connectors 82 and a safety valve 83. The opening pressure of the safety valve 83 is 0.15 MPa. The return flange 9 includes a flange body 91, two quick-connect return connectors 92 and two quick-connect air inlet connectors 93. The output airflow pressure of the first pneumatic agitator 6 and the second pneumatic agitator 7 is 0.5 MPa, which enables the cleaning fluid to form a highly efficient turbulent flow.

[0039] In this embodiment, one end of the first inlet pipe 2 is connected to the outlet of the storage tank 1, and the other end is sealed to the inlet of the condenser 10 tubes through one of the inlet connectors 82 of the inlet flange 8; one end of the second inlet pipe 3 is connected to the outlet of the storage tank 1, and the other end is sealed to the inlet of the condenser 10 tubes through another inlet connector 82 of the inlet flange 8; one end of the first return pipe 4 is sealed to the return port of the condenser 10 tubes through one of the return connectors 92 of the return flange 9, and the other end is connected to the return end of the storage tank 1; one end of the second return pipe 5 is sealed to the return port of the condenser 10 tubes through another return connector 92 of the return flange 9, and the other end is connected to the return end of the storage tank 1; the outlet of the first pneumatic stirrer 6 is sealed to one of the air inlets 93 of the return flange 9, and the outlet of the second pneumatic stirrer 7 is sealed to the other air inlet 93 of the return flange 9.

[0040] The method of using the above-mentioned condenser cleaning device includes the following steps: S1. Device docking: Connect the liquid inlet flange 8 to the liquid inlet flange of the condenser 10 with bolts for sealing, and connect the liquid return flange 9 to the liquid return flange of the condenser 10 with bolts for sealing. Check all connections to ensure there are no leaks. S2. Pipeline adjustment: Close the manual ball valves on the first return pipe 4 and the second return pipe 5, and open the manual ball valves on the first inlet pipe 2 and the second inlet pipe 3; S3. Liquid Injection Operation: Inject a cleaning solution made of water and a weak acid detergent into the storage tank 1. Start two submersible sewage pumps 12 to deliver the cleaning solution through the first inlet pipe 2 and the second inlet pipe 3 to the outside and inside of the condenser 10 tubes, respectively. When the cleaning solution injection volume reaches 1.8m... 3 When the condenser volume is 90%, close the manual ball valves on the first inlet pipe 2 and the second inlet pipe 3, and stop the sewage submersible pump 12. S4. Stirring and cleaning: Start the first pneumatic stirrer 6 and the second pneumatic stirrer 7 to introduce a high-pressure airflow of 0.5MPa into the outside and inside of the 10 tubes of the condenser, so that the cleaning liquid forms turbulence and maintain stirring and cleaning for 10 minutes. S5. Return liquid filtration: Open the manual ball valves on the first return liquid pipe 4 and the second return liquid pipe 5 to allow the cleaning liquid carrying dirt to flow back to the storage tank 1 through the first return liquid pipe 4 and the second return liquid pipe 5. After being filtered by two asbestos filter elements 13, solid-liquid separation is completed. S6. Filter replacement: Observe the dirt content of the return cleaning solution and replace the asbestos filter element 13 in the storage tank 1 to avoid filter blockage. S7. Circulation cleaning: Repeat steps S2-S6 and circulate the cleaning 3 times until the dirt inside and outside the 10 tubes of the condenser is completely removed. S8. Rinse with clean water: Collect the cleaning fluid in the storage tank 1 into the special waste liquid bucket, inject clean water into the storage tank 1, repeat steps S2-S5, and rinse the inside and outside of the condenser 10 tubes with clean water 3 times to remove residual cleaning fluid. S9. Waste liquid and solid waste treatment: Add alkaline solution to the waste liquid tank to neutralize the waste cleaning liquid. After the pH value reaches 7, it meets the discharge standard. The filtered solid dirt is dried, crushed and then disposed of in a harmless manner. S10. Finishing Operation: Close all manual ball valves and equipment, disconnect the flange connection between the device and condenser 10, and complete the cleaning operation.

[0041] In this embodiment, the above-described apparatus and method are used to clean a machine with a volume of 2m³. 3The condenser, which has 1,000 stainless steel tubes inside, was cleaned in just 2 hours. Upon inspection, all the inner and outer surfaces of the tubes were thoroughly cleaned, with no dirt residue, and all the tubes were free from deformation and weld cracks. In contrast, cleaning a condenser of the same specifications using the traditional disassembly and rinsing method took up to 10 hours, and there were dead spots on the outer surface of the inner tubes, scale residue inside the tubes, and some tubes were deformed and weld cracks were found.

[0042] Compared with the prior art, the present invention has the following advantages: This invention enables non-disassembly cleaning of condensers, eliminating the need to remove the tubes and significantly reducing cleaning time with minimal impact on production schedules. Actual verification shows that cleaning time for condensers of the same specifications is reduced by more than 80% compared to traditional disassembly cleaning methods. This invention delivers cleaning fluid to the inside and outside of the tubes and shells through a first and second inlet pipe, respectively. Combined with turbulence created by a pneumatic agitator, this ensures thorough contact between the cleaning fluid and the inner and outer surfaces of the tubes and shells, eliminating blind spots and completely removing all internal and external contaminants in one pass. Furthermore, this invention eliminates the need for disassembly of the tubes and shells, preventing deformation caused by separation and weld cracking, effectively protecting the structural integrity of the condenser and extending its service life. The liquid storage tank of this invention enables the supply, recovery, and filtration of cleaning fluid, allowing for repeated recycling and significantly reducing the cost of using the cleaning fluid, thus aligning with the energy-saving and environmentally friendly production philosophy. All pipe joints in this invention utilize quick-connect fittings, and the filter element is quick-replacement type, facilitating easy disassembly and maintenance and improving the overall efficiency of cleaning operations. A safety valve is installed on the inlet flange to effectively discharge excess gas from the condenser, preventing excessive pressure and ensuring operational safety during cleaning. This invention also renders waste cleaning fluid and solid dirt harmless, avoiding environmental pollution and meeting the environmental protection requirements of industrial production.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A condenser cleaning device, characterized in that, include: A storage tank, including a tank body, a water pump, and a filter element, is used for the storage, supply, and recycling of cleaning fluid; The first inlet pipe has one end connected to the outlet of the storage tank and the other end sealed to the inlet of the outside of the condenser tubes through an inlet flange, and is used to transport cleaning fluid to the outside of the condenser tubes. The second inlet pipe has one end connected to the outlet of the storage tank and the other end sealed to the inlet of the condenser tubes through an inlet flange, for conveying cleaning fluid to the inside of the condenser tubes. The first return pipe has one end sealed to the return port outside the condenser tubes via a return flange, and the other end connected to the return end of the storage tank, for returning the cleaning fluid outside the condenser tubes. The second return pipe has one end sealed to the return port inside the condenser tubes via a return flange, and the other end connected to the return end of the storage tank, for returning the cleaning fluid inside the condenser tubes. The first pneumatic stirrer has its outlet end connected to the air inlet outside the condenser tubes, and is used to provide high-pressure airflow to the outside of the condenser tubes. The second pneumatic stirrer has its outlet end connected to the inlet inside the condenser tubes, and is used to provide high-pressure airflow inside the condenser tubes.

2. The condenser cleaning device according to claim 1, characterized in that, The volume of the storage tank is larger than that of the condenser, the water pump is located at the bottom inside the tank, and the filter element is detachably connected to the return end of the tank.

3. The condenser cleaning device according to claim 1, characterized in that, The first inlet pipe, the second inlet pipe, the first return pipe, and the second return pipe each include a pipeline and a manual ball valve. The pipeline is a rubber hose, and the manual ball valve is used to control the on / off state of each pipeline and the flow rate of the cleaning fluid.

4. The condenser cleaning device according to claim 1, characterized in that, The inlet flange includes a flange body, two inlet connectors and a safety valve. The inlet connectors are respectively sealed to the first inlet pipe and the second inlet pipe, and the safety valve is located at the top of the flange body.

5. The condenser cleaning device according to claim 1, characterized in that, The return flange includes a flange body, two return connectors and two air inlet connectors. The return connectors are respectively sealed to the first return pipe and the second return pipe, and the air inlet connectors are respectively sealed to the air outlets of the first pneumatic agitator and the second pneumatic agitator.

6. The condenser cleaning device according to claim 4 or 5, characterized in that, The liquid inlet connector, the liquid return connector, and the air inlet connector are all quick connectors.

7. The condenser cleaning device according to claim 1, characterized in that, The high-pressure airflow output by the first and second pneumatic agitators is 0.4-0.6 MPa; the water pump is a submersible sewage pump; the filter element is an asbestos filter element; and the tank is a steel tank.

8. A method of using the condenser cleaning device according to any one of claims 1-7, characterized in that, Includes the following steps: S1. Device docking: Seal the liquid inlet flange to the liquid inlet flange of the condenser, and seal the liquid return flange to the liquid return flange of the condenser to ensure that there is no leakage at the connection. S2. Pipeline adjustment: Close the manual ball valves of the first return pipe and the second return pipe, and open the manual ball valves of the first inlet pipe and the second inlet pipe; S3. Liquid injection operation: Start the water pump to deliver cleaning fluid to the inside and outside of the condenser tubes. When the amount of cleaning fluid injected reaches 90%-95% of the condenser volume, close the manual ball valve of the inlet pipe and stop the water pump. S4. Stirring and cleaning: Start the first and second pneumatic stirrers and introduce high-pressure airflow into the inside and outside of the condenser tubes, and maintain stirring and cleaning for 5-15 minutes. S5. Return liquid filtration: Open the manual ball valves of the first and second return liquid pipes to allow the cleaning liquid to flow back to the storage tank and be filtered through the filter element. S6. Circulation cleaning: Repeat steps S2-S5 until the dirt inside and outside the condenser tubes is completely removed. S7. Rinse with clean water: Recover the cleaning fluid in the storage tank, inject clean water and repeat steps S2-S5 to rinse the inside and outside of the condenser tubes 2-3 times.

9. The method of using the condenser cleaning device according to claim 8, characterized in that, After step S5, there is a filter element replacement step: the filter element on the storage tank is replaced according to the dirt content of the return cleaning fluid; the cleaning fluid is a low-corrosion acid solution adapted to the actual working conditions of the condenser, and the cleaning fluid can be repeatedly recycled after being filtered by the filter element.

10. The method of using the condenser cleaning device according to claim 8, characterized in that, It also includes a harmless treatment step: the returned waste cleaning liquid and the solid dirt filtered out by the filter element are recovered; the waste cleaning liquid is treated by alkali neutralization to a pH value of 7 before being discharged in compliance with standards; the solid dirt is dried, pulverized, and then disposed of in a harmless manner; when the condenser volume is 2m³ 3 At that time, the cleaning fluid injection volume was 1.8m. 3 The output airflow pressure of the first and second pneumatic agitators is 0.5 MPa, and the agitation and cleaning time is 10 minutes.

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