A runner cleaning system

Abstract

The utility model relates to a flow channel cleaning system, it relates to flow channel cleaning technical field, including including cleaning subassembly, cleaning subassembly includes water tank, flow pump and switch valve connected in proper order through pipeline, switch valve is connected with first pipeline and second pipeline, and the one end of first pipeline and second pipeline away from switch valve is communicated with the water inlet and water outlet of flow channel respectively, and water tank still is connected with first backwater pipe and second backwater pipe, when forward cleaning, cleaning fluid enters flow channel from first pipeline through the water inlet of flow channel, then flows into second pipeline from the water outlet of flow channel and flows back to water tank through first backwater pipe, when reverse cleaning, cleaning fluid enters flow channel from second pipeline through the water outlet of flow channel, then flows out to first pipeline from the water inlet of flow channel and flows back to water tank through second backwater pipe, adopt above technical scheme, can realize the flushing of flow channel's positive and negative direction, has guaranteed the overall cleaning of flow channel inner wall, has effectively improved the cleaning effect.

Description

Technical Field

[0001] This utility model relates to the technical field of flow channel cleaning equipment, and specifically to a flow channel cleaning system. Background Technology

[0002] As a key component of high-power electronic devices, power batteries, and server cooling systems, the cleanliness of liquid cooling channels directly affects heat dissipation performance and equipment lifespan.

[0003] Existing liquid cooling channel cleaning systems mostly adopt a unidirectional circulation flushing scheme, which means that the cleaning fluid is pumped in a fixed direction to flush away the residual heat-conducting medium, particulate impurities and oxides in the channel. However, this cleaning is unidirectional, and eddy dead zones are easily formed in the bends, capillaries and multi-branch intersections of the channel. Adhesive contaminants (such as silicone grease and oil stains) are difficult to remove, and the cleaning is not thorough. If cleaning is repeated, it will lead to low efficiency.

[0004] In view of this, this application proposes a flow channel cleaning system to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to solve the problem that the existing flow channel cleaning system uses a unidirectional circulation flushing method to flush the flow channel, which results in incomplete cleaning and low efficiency due to multiple flushings. This invention provides a flow channel cleaning system.

[0006] The technical solution adopted by this utility model is: a flow channel cleaning system for cleaning flow channels, characterized in that it includes a cleaning component, the cleaning component including a water tank, a flow pump and a switching valve connected in sequence by pipes, the switching valve being connected to a first pipe and a second pipe, the ends of the first pipe and the second pipe away from the switching valve being connected to the inlet and outlet of the flow channel respectively, the water tank being connected to a first return pipe and a second return pipe, the ends of the first return pipe and the second return pipe away from the water tank being connected to the first pipe and the second pipe respectively;

[0007] The water tank stores cleaning fluid. The switching valve is used to change the flow direction of the cleaning fluid. During forward cleaning, the cleaning fluid enters the flow channel from the first pipe through the inlet of the flow channel, then flows into the second pipe from the outlet of the flow channel and flows back to the water tank through the first return pipe. During reverse cleaning, the cleaning fluid enters the flow channel from the second pipe through the outlet of the flow channel, then flows out from the inlet of the flow channel into the first pipe and flows back to the water tank through the second return pipe.

[0008] Optionally, the cleaning assembly further includes a flow meter disposed between the flow pump and the switching valve, and a check valve disposed between the flow meter and the flow pump.

[0009] Optionally, a first filter and a second filter are respectively provided on the first pipe and the second pipe.

[0010] Optionally, a third filter and a first shut-off valve are installed on the pipeline between the flow pump and the water tank, with the first shut-off valve located between the third filter and the water tank.

[0011] Optionally, a first regulating valve and a second regulating valve are respectively provided on the first return water pipe and the second return water pipe, with the first regulating valve and the second regulating valve located at the ends of the first return water pipe and the second return water pipe near the water tank.

[0012] Optionally, the flow channel cleaning system further includes a purge and drainage assembly, which is used to drain the remaining liquid in the flow channel after cleaning; the purge and drainage assembly includes a purge air inlet pipe connected to the second return water pipe and a purge air inlet valve provided on the purge air inlet pipe, and the end of the purge air inlet pipe away from the second return water pipe is connected to a purge air inlet device.

[0013] Optionally, a second shut-off valve and a third shut-off valve are respectively installed on the first return water pipe and the second return water pipe, and the third shut-off valve is located between the purge air inlet pipe and the water tank.

[0014] Optionally, the flow channel cleaning system further includes a drying component, which is used to dry the residual liquid in the flow channel after the drainage is completed; the drying component includes a drying air inlet pipe connected to the second return water pipe and a drying air inlet valve provided on the drying air inlet pipe, the drying air inlet pipe is located on the side of the purge air inlet pipe away from the water tank, and the end of the drying air inlet pipe away from the second return water pipe is connected to a drying air inlet device.

[0015] Optionally, the flow channel cleaning system further includes a detection component, which includes a first temperature transmitter, a first pressure transmitter, and a first pressure gauge sequentially disposed on the first pipeline, and a second temperature transmitter, a second pressure transmitter, and a second pressure gauge sequentially disposed on the second pipeline. The first temperature transmitter and the second temperature transmitter are located on the side of the first filter and the second filter away from the switching valve, respectively.

[0016] Optionally, the detection component further includes a differential pressure transmitter, the two interfaces of which are respectively connected to the first pipeline and the second pipeline.

[0017] After adopting the above technical solution, the beneficial effects of this utility model are as follows:

[0018] In this application, when cleaning the flow channel using the cleaning assembly, the switching valve is first opened, causing the flow pump to pump the cleaning solution from the water tank into the first pipe. The cleaning solution in the first pipe enters the flow channel through the inlet to perform forward cleaning. Subsequently, the cleaning solution flows out from the outlet of the flow channel to the second pipe, and finally flows back to the water tank through the first return pipe. After the forward cleaning is completed, the switching valve is used to change the direction of the cleaning solution, allowing the flow pump to pump the cleaning solution into the second pipe. The cleaning solution in the second pipe enters the flow channel through the outlet to perform reverse cleaning. Subsequently, the cleaning solution flows out from the inlet of the flow channel to the first pipe, and finally flows back to the water tank through the second return pipe. This achieves forward and reverse rinsing of the flow channel, effectively avoiding the incomplete cleaning caused by unidirectional rinsing, and also improving cleaning efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0021] Figure 2 This is a schematic diagram of the cleaning component in this embodiment;

[0022] Figure 3 This is a schematic diagram of the purging and draining assembly and the drying assembly in this embodiment;

[0023] Figure 4 This is a schematic diagram of the detection component in this embodiment.

[0024] Explanation of reference numerals in the attached drawings: 100, Cleaning assembly; 101, Water tank; 102, Flow pump; 103, Switching valve; 104, First pipe; 105, Second pipe; 106, First return water pipe; 107, Second return water pipe; 108, Flow meter; 109, Check valve; 110, First filter; 111, Second filter; 112, Third filter; 113, First shut-off valve; 114, First regulating valve; 115, Second regulating valve; 116, Second shut-off valve; 117, Third shut-off valve; 2 0. Purge and drain assembly; 21. Purge air inlet pipe; 22. Purge air inlet valve; 23. Purge air inlet device; 30. Drying assembly; 31. Drying air inlet pipe; 32. Drying air inlet valve; 33. Drying air inlet device; 40. Detection assembly; 41. First temperature transmitter; 42. First pressure transmitter; 43. First pressure gauge; 44. Second temperature transmitter; 45. Second pressure transmitter; 46. Second pressure gauge; 47. Differential pressure transmitter; 200. Flow channel; 201. Water inlet; 202. Water outlet. Detailed Implementation

[0025] The following will refer to the appendices in the embodiments of the present invention. Figures 1-4 The technical solutions in the embodiments of the present invention are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0026] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0027] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0028] This embodiment relates to a flow channel 200 cleaning system, referring to... Figures 1-4 The system is used to clean the flow channel 200 and includes a cleaning component 100, a purging and draining component 20, a drying component 30, and a detection component 40. The cleaning component 100 is used to clean the flow channel 200 in both directions. The purging and draining component 20 is used to drain the remaining liquid in the flow channel 200 after cleaning. The drying component 30 is used to dry the residual liquid in the flow channel 200 after draining. The detection component 40 is used to test parameters such as pressure and temperature of the flow channel 200.

[0029] Specifically, the cleaning assembly 100 includes a water tank 101, a flow pump 102, and a switching valve 103 connected sequentially via pipes. The switching valve 103 is connected to a first pipe 104 and a second pipe 105. The ends of the first pipe 104 and the second pipe 104 away from the switching valve 103 are respectively connected to the inlet 201 and the outlet 202 of the flow channel 200. The water tank 101 is also connected to a first return pipe 106 and a second return pipe 107. The ends of the first return pipe 106 and the second return pipe 107 away from the water tank 101 are respectively connected to the first pipe 104 and the second pipe 105. The tank 101 contains cleaning fluid. The switching valve 103 is used to change the flow direction of the cleaning fluid. During forward cleaning, the cleaning fluid enters the flow channel 200 from the first pipe 104 through the inlet 201, and then flows into the second pipe 105 from the outlet 202 of the flow channel 200, and then flows back to the water tank 101 through the first return pipe 106. During reverse cleaning, the cleaning fluid enters the flow channel 200 from the second pipe 105 through the outlet 202, and then flows out from the inlet 201 of the flow channel 200 back into the first pipe 104, and then flows back to the water tank 101 through the second return pipe 107.

[0030] It should be noted that in this embodiment, the flow pump 102 is a variable frequency flow pump 102, and the switching valve 103 is an electromagnetic switching valve 103.

[0031] During the cleaning process, the flow pump 102 is activated, and the cleaning fluid enters the flow channel 200 through the first pipe 104, flows out through the flow channel 200 from the second pipe 105, and returns to the water tank 101 through the first return water pipe 106, thus completing one forward cleaning cycle. Subsequently, the flow direction of the cleaning fluid is changed by the switching valve 103, causing the cleaning fluid to enter the flow channel 200 through the second pipe 105, flow out through the flow channel 200 from the first pipe 104, and return to the water tank 101 through the second return water pipe 107, thus completing one reverse cleaning cycle. The alternation of forward and reverse cleaning ensures thorough cleaning of the inner wall of the flow channel 200, effectively improving the cleaning effect.

[0032] Furthermore, the cleaning assembly 100 also includes a flow meter 108 disposed between the flow pump 102 and the switching valve 103, and a check valve 109 disposed between the flow meter 108 and the flow pump 102.

[0033] The flow meter 108 is used to count the flow rate of the cleaning fluid pumped into the switching valve 103 by the flow pump 102, while the check valve 109 is used to prevent the cleaning fluid from flowing back into the flow pump 102, thereby avoiding damage to the flow pump 102.

[0034] Furthermore, a first filter 110 and a second filter 111 are respectively provided on the first pipe 104 and the second pipe 105.

[0035] Both the first filter 110 and the second filter 111 are used to filter the cleaning fluid in the first pipe 104 and the second pipe 105. During forward cleaning, the cleaning fluid flows from the first pipe 104 into the flow channel 200, then flows out from inside the flow channel 200 into the second pipe 105, and finally flows back into the water tank 101 through the first return water pipe 106. At this time, the first filter 110 is used to filter the cleaning fluid flowing from the first pipe 104 into the flow channel 200, and the second filter 111 is used to filter the cleaning fluid flowing from the second flow channel 200 into the first return water pipe 106. During reverse cleaning, the cleaning fluid flows into the flow channel 200 from the second pipe 105, then flows out from the flow channel 200 to the first pipe 104, and finally flows back to the water tank 101 through the second return water pipe 107. At this time, the first filter 110 is used to filter the cleaning fluid flowing into the second return water pipe 107 from the first pipe 104, and the second pipe 105 is used to filter the cleaning fluid flowing into the flow channel 200 from the second pipe 105, thereby improving the cleanliness of the cleaning fluid and preventing impurities in the cleaning fluid from entering the flow channel 200 and causing pollution.

[0036] Furthermore, a third filter 112 and a first shut-off valve 113 are installed on the pipeline between the flow pump 102 and the water tank 101. The third filter 112 is used to filter the cleaning fluid flowing from the water tank 101 into the flow pump 102 to prevent impurities in the cleaning fluid from entering the flow pump 102 and causing damage to the flow pump 102. The first shut-off valve 113 is used to interrupt the supply of cleaning fluid from the water tank 101 at any time.

[0037] Furthermore, a first regulating valve 114 and a second regulating valve 115 are respectively installed on the first return water pipe 106 and the second return water pipe 107. The first regulating valve 114 and the second regulating valve 115 are respectively located at the end of the first return water pipe 106 and the second return water pipe 107 near the water tank 101.

[0038] Understandably, by setting the first regulating valve 114 and the second regulating valve 115, the flow rate of the cleaning fluid returning from the first return water pipe 106 and the second return water pipe 107 to the water tank 101 can be adjusted. This, combined with the flow pump 102 changing the flow rate of the pumped cleaning fluid, achieves precise control of the cleaning fluid flow rate to meet different cleaning needs. Furthermore, the first regulating valve 114 and the second regulating valve 115 can effectively prevent the cleaning fluid from returning too quickly or too slowly, ensuring uniform distribution of the cleaning fluid within the flow channel 200 and improving the cleaning effect. At the same time, by precisely controlling the cleaning fluid flow rate, waste of cleaning fluid can be reduced, lowering cleaning costs.

[0039] Furthermore, the purge and drainage assembly 20 includes a purge air inlet pipe 21 connected to the second return water pipe 107 and a purge air inlet valve 22 provided on the purge air inlet pipe 21. The end of the purge air inlet pipe away from the second return water pipe 107 is connected to a purge air inlet device 23.

[0040] During purging and draining, first, close the first shut-off valve 113 and the flow pump 102, and close the switching valve 103. Then, open the purging air inlet valve 22 and blow gas into the second return water pipe 107 through the purging air inlet device 23. The gas blown into the second return water pipe 107 enters the flow channel 200 from the inlet 201 after passing through the first pipe 104. The gas discharges the remaining cleaning liquid in the flow channel 200 from the outlet 202 of the flow channel 200 into the second pipe 105. Finally, the cleaning liquid blown into the second pipe 105 by the gas flows back to the water tank 101 through the first return pipe, thus realizing purging and draining.

[0041] Furthermore, a second shut-off valve 116 and a third shut-off valve 117 are respectively installed on the first return water pipe 106 and the second return water pipe 107. The second shut-off valve 116 is located on the side of the first return water pipe 106 near the water tank 101, and the third shut-off valve 117 is located between the purge air inlet pipe and the water tank 101.

[0042] Since both the first return water pipe 106 and the second return water pipe 107 are connected to the water tank 101, the second shut-off valve 116 and the third shut-off valve 117 prevent the cleaning fluid in the water tank 101 from flowing into the first return water pipe 106 and the second return water pipe 107, thus ensuring the normal operation of the purging air intake assembly and the drying assembly 30. During the purging and draining process, the closed state of the second shut-off valve 116 and the third shut-off valve 117 ensures that the gas can only flow in one direction, that is, from the purging air intake device 23 into the second return water pipe 107, then through the flow channel 200 to the second pipe 105, and finally back to the water tank 101. This design not only improves the efficiency of purging and draining, but also avoids the potential damage to the system caused by the backflow of cleaning fluid. In addition, by setting the second shut-off valve 116 and the third shut-off valve 117, the flow path of the cleaning fluid in the system can be controlled more flexibly, which provides convenience for the subsequent drying steps.

[0043] Furthermore, the drying assembly 30 includes a drying air inlet pipe 31 connected to the second return water pipe 107 and a drying air inlet valve 32 provided on the drying air inlet pipe 31. The drying air inlet pipe 31 is located on the side of the purge air inlet pipe away from the water tank 101, and the end of the drying air inlet pipe 31 away from the second return water pipe 107 is connected to a drying air inlet device 33.

[0044] The drying air inlet valve 32 controls the flow of drying gas into the drying air inlet pipe 31 via the drying air inlet device 33. After purging and draining, the second shut-off valve 116 and the third shut-off valve 117 are closed, and the drying air inlet valve 32 is opened. The drying air inlet device 33 starts, introducing drying gas into the drying air inlet pipe 31. The drying gas passes sequentially through the drying air inlet pipe 31, the second return water pipe 107, and the flow channel 200, drying the flow channel 200 after purging and draining. This not only ensures rapid drying of the flow channel 200 after cleaning, effectively preventing bacterial growth and corrosion, but also greatly improves the efficiency and reliability of the entire flow channel 200 cleaning system.

[0045] Furthermore, the detection assembly 40 includes a first temperature transmitter 41, a first pressure transmitter 42, and a first pressure gauge 43 sequentially disposed on the first pipeline 104, and a second temperature transmitter 44, a second pressure transmitter 45, and a second pressure gauge 46 sequentially disposed on the second pipeline 105. The first temperature transmitter 41 and the second temperature transmitter 44 are respectively located on the side of the first filter 110 and the second filter 111 away from the switching valve 103.

[0046] The first temperature transmitter 41 and the second temperature transmitter 44 are used to monitor the temperature of the cleaning fluid in the first pipe 104 and the second pipe 105 in real time, ensuring that the cleaning fluid circulates within a suitable temperature range to improve the cleaning effect. The first pressure transmitter 42 and the second pressure transmitter 45 are used to monitor the pressure changes in the first pipe 104 and the second pipe 105. The pressure data can be used to determine the flow state of the cleaning fluid in the pipes, and to promptly detect and resolve potential blockages. At the same time, the first pressure gauge 43 and the second pressure gauge 46 provide intuitive readings, allowing operators to quickly understand the pressure situation in the pipes. The installation of these detection components 40 makes the operation of the entire flow channel 200 cleaning system more controllable and reliable, providing a strong guarantee for the long-term stable operation of the system.

[0047] Furthermore, the detection component 40 also includes a differential pressure transmitter 47, the two interfaces of which are connected to the first pipeline 104 and the second pipeline 105, respectively.

[0048] The differential pressure transmitter 47 is used to monitor the pressure difference between the first pipe 104 and the second pipe 105. When the cleaning fluid circulates within the flow channel 200, if there is a blockage or uneven flow rate at any point, the pressure difference between the first pipe 104 and the second pipe 105 will change. Through real-time monitoring by the differential pressure transmitter 47, these abnormalities can be detected promptly, allowing for quick measures to be taken for cleaning or adjustment, preventing further deterioration of the problem. The addition of the differential pressure transmitter 47 further enhances the intelligence level of the flow channel 200 cleaning system, making the system operation more efficient and safer.

[0049] The working principle of this invention is roughly as follows: During the cleaning process, the flow pump 102 is started, and the cleaning fluid enters the flow channel 200 through the first pipe 104, flows out through the flow channel 200 from the second pipe 105, and returns to the water tank 101 through the first return water pipe 106, completing one forward cleaning cycle. Subsequently, by using the switching valve 103 to change the flow direction of the cleaning fluid, the cleaning fluid enters the flow channel 200 through the second pipe 105, flows out through the flow channel 200 from the first pipe 104, and returns to the water tank 101 through the second return water pipe 107, completing one reverse cleaning cycle. The alternation of forward and reverse cleaning ensures thorough cleaning of the inner wall of the flow channel 200, effectively improving the cleaning effect.

[0050] After cleaning is completed, shut off the flow pump 102, the first shut-off valve 113, and the switching valve 103. Start the purging air intake device 23 to blow gas into the flow channel 200 through the purging air intake pipe 21 to discharge any residual cleaning liquid from the flow channel 200. After purging is completed, close the purging air intake valve 22 and the second and third shut-off valves. Start the drying air intake device 33 to introduce drying gas into the flow channel 200 through the drying air intake pipe 31 to dry the flow channel 200. After drying is completed, the entire cleaning process of the flow channel 200 is finished.

[0051] The above is only used to illustrate the technical solution of the present invention and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention, as long as they do not depart from the spirit and scope of the technical solution of the present invention, should be covered within the scope of the claims of the present invention.

Claims

1. A flow channel cleaning system for cleaning a flow channel (200), characterized in that, The system includes a cleaning assembly (100), which includes a water tank (101), a flow pump (102), and a switching valve (103) connected in sequence by pipes. The switching valve (103) is connected to a first pipe (104) and a second pipe (105). The ends of the first pipe (104) and the second pipe (105) away from the switching valve (103) are respectively connected to the inlet (201) and the outlet (202) of the flow channel (200). The water tank (101) is also connected to a first return pipe (106) and a second return pipe (107). The ends of the first return pipe (106) and the second return pipe (107) away from the water tank (101) are respectively connected to the first pipe (104) and the second pipe (105). The water tank (101) stores cleaning fluid. The switching valve (103) is used to change the flow direction of the cleaning fluid. During forward cleaning, the cleaning fluid enters the flow channel (200) from the first pipe (104) through the inlet (201) of the flow channel (200), and then flows into the second pipe (105) from the outlet (202) of the flow channel (200) and flows back to the water tank (101) through the first return pipe (106). During reverse cleaning, the cleaning fluid enters the flow channel (200) from the second pipe (105) through the outlet (202) of the flow channel (200), and then flows out from the inlet (201) of the flow channel (200) into the first pipe (104) and flows back to the water tank (101) through the second return pipe (107).

2. The flow channel cleaning system according to claim 1, characterized in that, The cleaning assembly (100) also includes a flow meter (108) disposed between the flow pump (102) and the switching valve (103) and a check valve (109) disposed between the flow meter (108) and the flow pump (102).

3. The flow channel cleaning system according to claim 2, characterized in that, A first filter (110) and a second filter (111) are respectively provided on the first pipe (104) and the second pipe (105).

4. The flow channel cleaning system according to claim 3, characterized in that, A third filter (112) and a first shut-off valve (113) are installed on the pipeline between the flow pump (102) and the water tank (101). The first shut-off valve (113) is located between the third filter (112) and the water tank (101).

5. A flow channel cleaning system according to claim 4, characterized in that, A first regulating valve (114) and a second regulating valve (115) are respectively provided on the first return water pipe (106) and the second return water pipe (107). The first regulating valve (114) and the second regulating valve (115) are respectively located at the end of the first return water pipe (106) and the second return water pipe (107) near the water tank (101).

6. The flow channel cleaning system according to claim 1, characterized in that, The flow channel cleaning system also includes a purge and drainage assembly (20), which is used to drain the remaining liquid in the flow channel (200) after cleaning. The purge and drainage assembly (20) includes a purge air inlet pipe (21) connected to the second return water pipe (107) and a purge air inlet valve (22) provided on the purge air inlet pipe (21). The end of the purge air inlet pipe (21) away from the second return water pipe (107) is connected to a purge air inlet device (23).

7. A flow channel cleaning system according to claim 6, characterized in that, A second shut-off valve (116) and a third shut-off valve (117) are respectively installed on the first return water pipe (106) and the second return water pipe (107). The third shut-off valve (117) is located between the purge air inlet pipe (21) and the water tank (101).

8. A flow channel cleaning system according to claim 6, characterized in that, The flow channel cleaning system also includes a drying component (30), which is used to dry the residual liquid in the flow channel (200) after the drainage is completed; The drying assembly (30) includes a drying air inlet pipe (31) connected to the second return water pipe (107) and a drying air inlet valve (32) provided on the drying air inlet pipe (31). The drying air inlet pipe (31) is located on the side of the purge air inlet pipe (21) away from the water tank (101). The end of the drying air inlet pipe (31) away from the second return water pipe (107) is connected to a drying air inlet device (33).

9. A flow channel cleaning system according to claim 3, characterized in that, The flow channel cleaning system also includes a detection component (40), which includes a first temperature transmitter (41), a first pressure transmitter (42), and a first pressure gauge (43) sequentially disposed on the first pipe (104), and a second temperature transmitter (44), a second pressure transmitter (45), and a second pressure gauge (46) sequentially disposed on the second pipe (105). The first temperature transmitter (41) and the second temperature transmitter (44) are respectively located on the side of the first filter (110) and the second filter (111) away from the switching valve (103).

10. A flow channel cleaning system according to claim 9, characterized in that, The detection component (40) also includes a differential pressure transmitter (47), the two interfaces of which are connected to the first pipeline (104) and the second pipeline (105), respectively.

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