Cold plate runner cleaning equipment

Abstract

The invention relates to cold plate flow channel cleaning equipment, and relates to the field of cold plate maintenance equipment, the cold plate flow channel cleaning equipment comprises a cleaning pipeline, a cleaning particle storage device, a cleaning particle driving device and a water flow agitating device, and the cleaning pipeline is provided with a first flow channel connector, a second flow channel connector and a water supply connector; a first cleaning particle filter and a second cleaning particle filter are arranged in the areas, close to the first flow channel connector and the second flow channel connector, of the cleaning pipeline correspondingly, cleaning particles are stored in the cleaning particle storage device, and the cleaning particle storage device is connected between the first cleaning particle filter and the first flow channel connector. The cleaning particle driving device is arranged between the cleaning particle storage device and the cleaning pipeline on the outer side of the second cleaning particle filter, and the water flow agitating device is connected between the outer side of the first cleaning particle filter and the outer side of the second cleaning particle filter. Water flow can be driven to periodically and reversely flow through the first flow channel connector and the second flow channel connector, and the cleaning effect on the cold plate flow channel is improved.

Description

Technical Field

[0001] The present application relates to the field of cold plate maintenance equipment, and in particular to a cold plate flow channel cleaning equipment. Background Art

[0002] Cold plate, also known as heat spreader, is a commonly used liquid cooling radiator for cooling heat-generating devices. A tortuous flow channel is set inside the cold plate, and circulating cooling water is passed through the flow channel. The cooling water is used to take away the heat on the cold plate and cool the heat-generating devices. It has the advantages of large heat dissipation capacity and fast heat dissipation speed. It is widely used in power battery modules and energy storage battery modules to dissipate heat and cool down the battery modules. With the promotion of green energy, cold plates have also been more widely used.

[0003] When using a cold plate to cool a battery module, as the cooling water flows in the flow channel of the cold plate, the temperature of the cooling water increases as it absorbs more heat from the battery module. The calcium and magnesium ions dissolved in the water easily form scale under high temperature conditions and deposit on the wall of the flow channel. On the one hand, it occupies the flow area of ​​the flow channel and reduces the flow rate of cooling water; on the other hand, it reduces the thermal conductivity of the cold plate and affects the heat exchange effect of the cold plate. Therefore, after a certain period of use, the flow channel of the cold plate usually needs to be cleaned to restore the flow and heat exchange performance of the cold plate flow channel and ensure the cooling effect of the cold plate.

[0004] Existing cold plate flow channel cleaning equipment usually adds an acidic descaling agent to the cleaning water, injects the water with the acidic descaling agent into the flow channel, and uses the hydrogen ions in the acidic cleaning water to dissolve the scale in the flow channel, thereby cleaning the scale in the flow channel. However, cold plates are usually made of metal materials. In order to prevent acid from corroding the metal materials, weak acids are usually used to clean the scale in the flow channel, and the cleaning effect of the scale is poor. Some flow channel cleaning equipment also uses a reversing valve to change the direction of the water flow in the flow channel, and uses the diversion of the water flow to improve the cleaning effect of the flow channel. However, the valve port flow rate of the reversing valve is usually small, the water flow rate and flow velocity in the flow channel are small, and the impact of the water flow on the scale in the flow channel is limited, making it difficult to form an effective scale cleaning effect. Summary of the invention

[0005] In order to improve the cleaning effect of the cold plate flow channel, the present application provides a cold plate flow channel cleaning device.

[0006] The cold plate flow channel cleaning equipment provided in the present application includes a cleaning pipeline, a cleaning particle storage device, a cleaning particle driving device and a water flow agitation device, the cleaning pipeline is provided with a first flow channel interface and a second flow channel interface for connecting to the cold plate flow channel, and a water supply interface connected to an external water supply pipeline, a first cleaning particle filter and a second cleaning particle filter are respectively provided in the cleaning pipeline adjacent to the first flow channel interface and the second flow channel interface area, the cleaning particle storage device stores cleaning particles and is connected between the first cleaning particle filter and the first flow channel interface on the cleaning pipeline, the cleaning particle driving device is arranged between the cleaning particle storage device and the cleaning pipeline on the side of the second cleaning particle filter away from the second flow channel interface, and the water flow agitation device is connected between the side of the first cleaning particle filter away from the first flow channel interface and the side of the second cleaning particle filter away from the second flow channel interface, so as to be able to drive water to flow through the first flow channel interface and the second flow channel interface periodically in reverse.

[0007] Preferably, the cleaning particle storage device is provided with a cleaning particle inlet and outlet and a driving water flow inlet and outlet, a cleaning particle isolation net is provided in the cleaning particle storage device for separating the cleaning particle storage device, the cleaning particles are stored on one side of the cleaning particle isolation net in the cleaning particle storage device, the cleaning particle inlet and outlet are arranged on the side of the cleaning particle storage device where the cleaning particles are located, the driving water flow inlet and outlet are arranged on the side of the cleaning particle storage device opposite to the cleaning particle inlet and outlet, a first three-way valve is provided between the cleaning particle storage device and the cleaning pipeline, the first three-way valve is respectively connected to the first flow channel interface, the first cleaning particle filter and the cleaning particle inlet and outlet, so as to be able to switch the first flow channel interface to be connected to the first cleaning particle filter, or to be connected to the cleaning particle inlet and outlet, and the cleaning particle driving device is connected to the driving water flow inlet and outlet.

[0008] Further preferably, the cleaning particle driving device includes a cleaning particle driving hydraulic pump and a driving fluid reversing valve, the cleaning particle driving hydraulic pump is connected to the driving fluid reversing valve, and the driving fluid reversing valve is respectively connected to the driving water flow inlet and outlet and the side of the second cleaning particle filter away from the second flow channel interface.

[0009] Preferably, the water flow agitation device includes a water flow reversing chamber and an agitation hydraulic pump, the water flow reversing chamber is provided with a first agitation water flow interface, a second agitation water flow interface, a driving water flow inlet and a driving water flow outlet, the agitation hydraulic pump is connected between the driving water flow inlet and the driving water flow outlet, so as to be able to drive the water flow from the driving water flow outlet to the driving water flow inlet, the water flow reversing chamber can periodically change the flow direction of the water flow in the first agitation water flow interface and the second agitation water flow interface under the impetus of the driving water flow, forming a turbulent water flow with periodically changed flow direction, the first agitation water flow interface and the second agitation water flow interface are respectively connected to the first cleaning particle filter and the second cleaning particle filter.

[0010] Further preferably, a driving water pipe, a water pipe sleeve and a double piston are arranged in the water flow reversing chamber, the driving water pipe is arranged in the middle of the water flow reversing chamber, and both ends are connected to the water flow reversing chamber, a water pipe partition is arranged in the driving water pipe, the water pipe partition divides the tube cavity of the driving water pipe into a driving pressure chamber and a reflux chamber, the wall portions at both ends of the driving water pipe are respectively provided with a first pressure port and a second pressure port connected to the driving pressure chamber, and a first reflux port and a second reflux port connected to the reflux chamber, the driving water flow inlet and the driving water flow outlet are respectively connected to the driving pressure chamber and the reflux chamber; the first reversing port and the second reversing port corresponding to the first pressure port and the second pressure port are respectively provided at both ends of the water pipe sleeve, the water pipe sleeve is sleeved on the driving water pipe, and can slide on the driving water pipe, so as to switch the water pipe sleeve The sleeve blocks the first return port and the second return port, as well as the connection state between the first pressure port and the first reversing port, and the connection state between the second pressure port and the second reversing port; the double piston comprises a first piston, a piston connecting sleeve and a second piston, the piston connecting sleeve is connected between the first piston and the second piston, a reversing slide groove is arranged on the piston connecting sleeve, a reversing slider is arranged in the reversing slide groove, a buffer slide groove is arranged on the side of the reversing slider adjacent to the water pipe sleeve, a sleeve pushing block is arranged on the outside of the water pipe sleeve, the piston connecting sleeve is sleeved on the water pipe sleeve so that the sleeve pushing block is located in the buffer slide groove, a telescopic elastic push rod is hinged between the reversing slider and the wall of the water flow reversing chamber, and the first agitated water flow interface and the second agitated water flow interface are respectively arranged on the water flow reversing chamber on both sides of the double piston.

[0011] Preferably, a water flow driving device is also provided on the cleaning pipeline, a second three-way valve is provided between the first agitated water flow interface and the first cleaning particle filter, a third three-way valve is provided between the second agitated water flow interface and the second cleaning particle filter, and the two ends of the water flow driving device are respectively connected to the second three-way valve and the third three-way valve, and the second three-way valve and the third three-way valve can switch the first cleaning particle filter and the second cleaning particle filter to be connected to the first agitated water flow interface and the second agitated water flow interface, or to be connected to the water flow driving device.

[0012] Further preferably, a sewage pool is also provided on the cleaning pipeline, the sewage pool is provided on the inlet side of the water flow driving device, the water supply interface is provided between the water flow driving device and the sewage pool, a one-way valve is provided between the water supply interface and the sewage pool, a water supply solenoid valve is provided between the water supply interface and the cleaning pipeline, a fourth three-way valve is provided between the sewage pool and the cleaning pipeline, the fourth three-way valve is connected between the sewage pool, the second three-way valve and the one-way valve, so as to be able to switch the second three-way valve to be connected to the sewage pool, or to be connected to the one-way valve.

[0013] Preferably, a descaling agent container is further provided on the cleaning pipeline, in which a descaling agent is stored, and a descaling agent discharge solenoid valve is provided between the descaling agent container and the cleaning pipeline.

[0014] Preferably, an anti-scaling agent container is further provided on the cleaning pipeline, in which an anti-scaling agent is stored, and an anti-scaling agent discharge solenoid valve is provided between the anti-scaling agent container and the cleaning pipeline.

[0015] Preferably, an ultrasonic vibrator is provided on the cleaning pipeline on the side of the second cleaning particle filter away from the second flow channel interface.

[0016] The cold plate flow channel cleaning device of the present application includes at least one of the following beneficial technical effects:

[0017] 1. By using the cleaning particle storage device arranged on the cleaning pipeline, cleaning particles can be added to the water flow, and the cleaning particles are transported to the flow channel of the cold plate by the water flow. The cleaning particles are used to impact and collide with the wall of the flow channel to wash away the scale from the wall of the flow channel, thereby effectively cleaning the scale in the flow channel;

[0018] 2. By using the first cleaning particle filter and the second cleaning particle filter disposed in the vicinity of the first flow channel interface and the second flow channel interface, the cleaning particles can be confined in the cleaning pipeline between the first cleaning particle filter and the second cleaning particle filter and the cold plate flow channel connected thereto, thereby preventing the cleaning particles from being widely diffused in the cleaning pipeline and causing adverse effects on water flow control components such as hydraulic valves;

[0019] 3. The water flow agitation device disposed between the first cleaning particle filter and the outer side of the second cleaning particle filter can drive the water flow flowing through the first flow channel interface and the second flow channel interface to change direction periodically, forming a large flow agitation water flow flowing through the cold plate flow channel, driving the cleaning particles in the flow channel to flow back and forth, repeatedly hitting different positions of the flow channel wall, and effectively improving the tilting effect of the scale in the flow channel;

[0020] 4. By using an ultrasonic vibrator installed in the cleaning pipeline, ultrasonic vibration can be applied to the water flow while the cold plate flow channel is being cleaned with cleaning particles, descaling agents or water flow. The energy generated by the ultrasonic vibration of the water flow can be used to break up the scale in the flow channel, thereby improving the cleaning effect of the scale in the cold plate flow channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural principle diagram of an embodiment of the present application.

[0022] Figure 2 This is a schematic diagram of the structure of a cleaning particle storage device in one embodiment of the present application.

[0023] Figure 3 This is a schematic diagram of the structure of a water flow agitation device in one embodiment of the present application.

[0024] Figure 4 This is a diagram showing the working principle of a water flow agitation device in one embodiment of the present application.

[0025] Explanation of the reference numerals: 1. Cleaning pipeline; 11. First flow channel interface; 12. Second flow channel interface; 13. Water supply interface; 131. Water supply solenoid valve; 14. First cleaning particle filter; 15. Second cleaning particle filter; 16. Water flow driving device; 17. Sewage tank; 171. Fourth three-way valve; 18. One-way valve; 2. Cleaning particle storage device; 21. Cleaning particle inlet and outlet; 22. Driving water flow inlet and outlet; 23. Cleaning particle isolation net; 24. First three-way valve; 25. Particle sensor; 3. Cleaning particle driving device; 31. Cleaning particle driving hydraulic pump; 32. Driving fluid reversing valve; 4. Water flow agitation device; 401. First agitation water flow interface; 402. Second agitation water flow interface; 403. Driving water flow inlet; 404. Driving water flow outlet; 41. Water flow reversing chamber; 411. Driving water pipe; 4111, driving pressure chamber; 4112, reflux chamber; 4113, first pressure port; 4114, second pressure port; 4115, first reflux port; 4116, second reflux port; 412, water pipe sleeve; 4121, first reversing port; 4122, second reversing port; 4123, sleeve push block; 413, double piston; 4131, first piston; 4132, piston coupling sleeve; 41 33. Second piston; 4134. Reversing slide; 414. Water pipe partition; 415. Reversing slider; 4151. Buffer slide; 416. Telescopic elastic push rod; 42. Agitation hydraulic pump; 43. Second three-way valve; 44. Third three-way valve; 45. Turbidity sensor; 5. Descaling agent container; 51. Descaling agent discharge solenoid valve; 6. Antiscaling agent container; 61. Antiscaling agent discharge solenoid valve; 7. Ultrasonic vibrator. DETAILED DESCRIPTION

[0026] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.

[0027] In this application, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include one or more of the said features.

[0028] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] An embodiment of the cold plate flow channel cleaning device of the present application is as follows: Figure 1 As shown, it includes a cleaning pipeline 1, a cleaning particle storage device 2, a cleaning particle driving device 3 and a water flow agitation device 4. The cleaning pipeline 1 refers to all pipelines used to contain and transport cleaning liquid for cleaning the flow channel of the cold plate. The cleaning pipeline 1 is provided with a first flow channel interface 11 and a second flow channel interface 12 for connecting with the cooling water circulation channel of the cold plate. The cleaning liquid can be transported to the cooling water circulation channel of the cold plate through the first flow channel interface 11 and the second flow channel interface 12, so that the cleaning liquid passes through the flow channel of the cold plate to clean the scale in the flow channel. The cleaning pipeline 1 is also provided with a water supply interface 13, which can be connected to an external water supply pipeline through the water supply interface 13, and water is introduced into the cleaning pipeline 1 to directly clean the flow channel of the cold plate, or to carry cleaning supplies to clean the flow channel of the cold plate.

[0030] A first cleaning particle filter 14 is arranged on the pipeline adjacent to the first flow channel interface 11 on the cleaning pipeline 1, and a second cleaning particle filter 15 is arranged on the pipeline adjacent to the second flow channel interface 12. Both the first cleaning particle filter 14 and the second cleaning particle filter 15 are provided with filter nets, which can block particulate matter in the pipeline and limit the particulate matter in the pipeline adjacent to the first flow channel interface 11 and the second flow channel interface 12, as well as in the cooling water circulation passage of the cold plate connected to the first flow channel interface 11 and the second flow channel interface 12.

[0031] Cleaning particles are stored in the cleaning particle storage device 2. The cleaning particles can be various hard material particles that are insoluble in water, such as quartz sand, perlite or metal alloy particles. The cleaning particle storage device 2 is connected between the first cleaning particle filter 14 and the first flow channel interface 11 on the cleaning pipeline 1. One end of the cleaning particle driving device 3 is connected to the cleaning particle storage device 2, and the other end is connected to the cleaning pipeline 1 on the side of the second cleaning particle filter 15 away from the second flow channel interface 12. It can drive the water without cleaning particles in the cleaning pipeline 1 into the cleaning particle storage device 2, flush the cleaning particles in the cleaning particle storage device 2 into the pipeline near the first flow channel interface 11, and send it into the flow channel of the cold plate. The scale on the flow channel wall is cleaned by the impact of the cleaning particles on the flow channel wall. Or reversely drive the water flow through the second flow channel interface 12 into the flow channel of the cold plate, flush the cleaning particles in the flow channel and the scale cleaned from the wall of the flow channel into the cleaning particle storage device 2 to ensure the cleanliness of the cold plate flow channel.

[0032] The water flow agitation device 4 can be any device that can drive the water flow to turn repeatedly and flow in different directions. The water flow agitation device 4 is connected between the side of the first cleaning particle filter 14 away from the first flow channel interface 11 (hereinafter referred to as the outer side) and the side of the second cleaning particle filter 15 away from the second flow channel interface 12 (hereinafter referred to as the outer side), and is used to drive the water flow to pass through the first cleaning particle filter 14 and the second cleaning particle filter 15, and periodically flow in the opposite direction through the first flow channel interface 11 and the second flow channel interface 12, so as to drive the cleaning particles in the water flow to repeatedly impact the flow channel wall of the cold plate from different directions, and effectively wash away the scale attached to the flow channel wall. The first cleaning particle filter 14 and the second cleaning particle filter 15 can block the cleaning particles from passing through, prevent the cleaning particles from entering the water flow agitation device 4, and affect the normal operation of the water flow agitation device 4.

[0033] In some embodiments of the cold plate flow channel cleaning device of the present application, Figure 1 and Figure 2 As shown, a cleaning particle inlet and outlet 21 and a driving water flow inlet and outlet 22 are respectively provided on opposite sides of the cleaning particle storage device 2. A cleaning particle isolation net 23 is provided inside the cleaning particle storage device 2. The cleaning particle isolation net 23 divides the storage cavity inside the cleaning particle storage device 2 into two parts. The cleaning particles are stored in the cavity on one side of the cleaning particle isolation net 23 in the cleaning particle storage device 2.

[0034] The cleaning particle inlet and outlet 21 is arranged on the cleaning particle storage device 2, and is connected to the side cavity where the cleaning particles are located, so that the cleaning particles can flow out of the cleaning particle storage device 2 through the cleaning particle inlet and outlet 21, or flow back into the cleaning particle storage device 2 through the cleaning particle inlet and outlet 21. The driving water flow inlet and outlet 22 is arranged on the cleaning particle storage device 2, and is arranged on the side of the upper cleaning particle storage device 2 opposite to the cleaning particle inlet and outlet 21, and is connected to the side cavity of the cleaning particle isolation net 23 in the cleaning particle storage device 2 without cleaning particles. Water flow can be injected by driving the water flow inlet and outlet 22, and the water flow can be used to flow through the cleaning particle isolation net 23 to the cleaning particle inlet and outlet 21, so as to drive the cleaning particles to flow out of the cleaning particle storage device 2 and enter the cleaning pipeline 1, so that they can enter the flow channel of the cold plate through the first flow channel interface 11, and clean the scale in the flow channel. It is also possible to pump water outward by driving the water flow inlet and outlet 22, drive the water flow in the cold plate flow channel to enter the cleaning particle storage device 2 through the first flow channel interface 11, the cleaning pipeline 1 and the cleaning particle inlet and outlet 21, and drive the cleaning particles to flow back into the cleaning particle storage device 2. The cleaning particle isolation net 23 can block the cleaning particles and prevent the cleaning particles from flowing out through the driving water flow inlet and outlet 22 .

[0035] A first three-way valve 24 is provided between the cleaning particle storage device 2 and the cleaning pipeline 1, and the three connection ports of the first three-way valve 24 are respectively connected to the first flow channel interface 11, the first cleaning particle filter 14 and the cleaning particle inlet and outlet 21 through pipelines. By controlling the valve core connection state in the first three-way valve 24, the first flow channel interface 11 can be switched to be connected to the first cleaning particle filter 14, so that the water flow can be driven to flow repeatedly in different directions in the flow channel of the cold plate through the water flow agitation device 4; or the first flow channel interface 11 can be switched to be connected to the cleaning particle inlet and outlet 21, so that the cleaning particles in the cleaning particle storage device 2 can flow into the flow channel of the cold plate through the cleaning particle inlet and outlet 21 and the first flow channel interface 11, or the cleaning particles in the flow channel of the cold plate can flow back to the cleaning particle storage device 2 through the first flow channel interface 11 and the cleaning particle inlet and outlet 21.

[0036] The cleaning particle driving device 3 is connected to the driving water flow inlet and outlet 22, and can drive the water flow through the driving water flow inlet and outlet 22 into the cleaning particle storage device 2, driving the cleaning particles to flow out; or drive the water flow to flow out through the driving water flow inlet and outlet 22, and use the water flow to bring the cleaning particles back to the cleaning particle storage device 2.

[0037] A particle sensor 25 can also be provided on the cleaning particle inlet and outlet 21. The particle sensor 25 can detect whether the water flow flowing back into the cleaning particle storage device 2 through the cleaning particle inlet and outlet 21 still contains cleaning particles, thereby judging whether all the cleaning particles in the cold plate flow channel are recovered. After all the cleaning particles are recovered, the recovery driving action of the cleaning particle driving device 3 is stopped.

[0038] In a preferred embodiment of the cold plate flow channel cleaning device of the present application, as Figure 1 As shown, the cleaning particle driving device 3 includes a cleaning particle driving hydraulic pump 31 and a driving fluid reversing valve 32. The cleaning particle driving hydraulic pump 31 is connected to the driving fluid reversing valve 32, and the driving fluid reversing valve 32 is respectively connected to the driving water flow inlet and outlet 22 and the outer end of the second cleaning particle filter 15. The driving fluid reversing valve 32 can use a three-position four-way reversing valve, and the driving fluid reversing valve 32 can be controlled to switch the valve position, so that the water flow output by the cleaning particle driving hydraulic pump 31 can be switched to flow through the cleaning particle storage device 2, the first three-way valve 24, the first flow channel interface 11, the second flow channel interface 12 and the second cleaning particle filter 15.

[0039] In some embodiments of the cold plate flow channel cleaning device of the present application, Figure 1 and Figure 3 As shown, the water flow agitation device 4 includes a water flow reversing chamber 41 and an agitation hydraulic pump 42. The water flow reversing chamber 41 is provided with a first agitation water flow interface 401, a second agitation water flow interface 402, a driving water flow inlet 403 and a driving water flow outlet 404, and a water flow reversing structure is provided inside the water flow reversing chamber 41. The agitation hydraulic pump 42 is connected between the driving water flow inlet 403 and the driving water flow outlet 404, and can drive the water in the water flow reversing chamber 41 to flow out through the driving water flow outlet 404 and flow in through the driving water flow inlet 403, thereby driving the water flow reversing structure inside the water flow reversing chamber 41 to periodically reverse, so that the water in the water flow reversing chamber 41 periodically changes to flow out through the first agitation water flow interface 401 and flow in through the second agitation water flow interface 402, or flows out through the second agitation water flow interface 402 and flows in through the first agitation water flow interface 401, forming an agitated water flow with periodically changed flow.

[0040] The first turbulent water flow interface 401 and the second turbulent water flow interface 402 are respectively connected to the outside of the first cleaning particle filter 14 and the second cleaning particle filter 15. Specifically, the first turbulent water flow interface 401 can be connected to the first cleaning particle filter 14, and can also be connected to the second cleaning particle filter 15. When the first turbulent water flow interface 401 is connected to the first cleaning particle filter 14, the second turbulent water flow interface 402 is connected to the second cleaning particle filter 15; when the first turbulent water flow interface 401 is connected to the second cleaning particle filter 15, the second turbulent water flow interface 402 is connected to the first cleaning particle filter 14.

[0041] In a preferred embodiment of the cold plate flow channel cleaning device of the present application, as Figure 3 As shown, a driving water pipe 411 is arranged in the water flow reversing chamber 41. The driving water pipe 411 is arranged in the middle of the water flow reversing chamber 41, and both ends are respectively fixed on the chamber walls on the opposite sides of the water flow reversing chamber 41. A water pipe partition 414 is arranged inside the driving water pipe 411. The water pipe partition 414 divides the tube cavity of the driving water pipe 411 into a driving pressure chamber 4111 and a reflux chamber 4112 which are isolated from each other. The driving water flow inlet 403 and the driving water flow outlet 404 are respectively connected to the driving pressure chamber 4111 and the reflux chamber 4112.

[0042] A water pipe sleeve 412 is sleeved on the driving water pipe 411. The length of the water pipe sleeve 412 is shorter than that of the driving water pipe 411 and can slide on the driving water pipe 411. A first pressure port 4113 and a second pressure port 4114 connected to the driving pressure chamber 4111, and a first reflux port 4115 and a second reflux port 4116 connected to the reflux chamber 4112 are respectively provided on the pipe wall at different positions at both ends of the driving water pipe 411. The side walls of the two ends of the water pipe sleeve 412 are respectively provided with a first reversing port 4121 and a second reversing port 4122. When the water pipe sleeve 412 slides to one end of the driving water pipe 411, the first reversing port 4121 is connected to the first pressure port 4113, and the second reversing port 4122 is staggered with the second pressure port 4114; at the same time, the first return port 4115 is covered by the water pipe sleeve 412, and the second return port 4116 is located outside the water pipe sleeve 412. When the water pipe sleeve 412 slides to the other end of the driving water pipe 411, the first reversing port 4121 is staggered with the first pressure port 4113, and the second reversing port 4122 is connected to the second pressure port 4114; at the same time, the first return port 4115 is located outside the water pipe sleeve 412, and the second return port 4116 is covered by the water pipe sleeve 412.

[0043] A double piston 413 is sleeved on the outer side of the water pipe sleeve 412, and the double piston 413 includes a first piston 4131, a piston coupling sleeve 4132 and a second piston 4133. The piston coupling sleeve 4132 is connected between the first piston 4131 and the second piston 4133. The first piston 4131 and the second piston 4133 separate the cavity outside the driving water pipe 411 and inside the water flow reversing chamber 41 into three mutually isolated parts, namely, a first end cavity, an intermediate cavity and a second end cavity, wherein the first reversing port 4121, the first pressure port 4113 and the first return port 4115 are located at positions corresponding to the first end cavity, and the second reversing port 4122, the second pressure port 4114 and the second return port 4116 are located at positions corresponding to the second end cavity.

[0044] A plurality of reversing grooves 4134 are symmetrically arranged on the outer peripheral surface of the piston coupling sleeve 4132, and a reversing slider 415 is arranged in the reversing groove 4134. The reversing slider 415 can slide in the reversing groove 4134. A telescopic elastic push rod 416 is arranged between the relative position of the reversing slider 415 and the wall of the water flow reversing chamber 41. The telescopic elastic push rod 416 includes two telescopic sleeve rods nested in each other and a compression spring arranged between the two telescopic sleeve rods. The telescopic elastic push rod 416 can be telescoped as the nesting length of the two telescopic sleeve rods changes, and has a tendency to extend under the push of the compression spring. One end of the telescopic elastic push rod 416 is hinged to the outer side of the reversing slider 415, and the other end is hinged to the inner side of the wall of the water flow reversing chamber 41. The reversing slider 415 slides between the two ends of the reversing groove 4134 under the push of the telescopic elastic push rod 416.

[0045] A buffer groove 4151 is provided on the inner side of the reversing slider 415, that is, on the side close to the water pipe sleeve 412, and a sleeve pushing block 4123 is fixedly provided at a relative position on the outer side of the middle part of the water pipe sleeve 412. The sleeve pushing block 4123 is located in the buffer groove 4151. When the reversing slider 415 slides in the reversing groove 4134, the sleeve pushing block 4123 can push the water pipe sleeve 412 to slide on the driving water pipe 411, and switch between the end positions at both ends of the driving water pipe 411 under the push of the telescopic elastic push rod 416.

[0046] The first turbulent water flow interface 401 and the second turbulent water flow interface 402 are respectively arranged on the water flow reversing chamber 41 on both sides of the double piston 413, and are respectively connected to the first end cavity and the second end cavity. The reversing slider 415 and the telescopic elastic push rod 416 are respectively arranged in the middle cavity.

[0047] like Figure 4As shown, when the water pipe sleeve 412 is located at the left end position of the driving water pipe 411 shown in Figure (a), the first reversing port 4121 is connected to the first pressure port 4113, while the second reversing port 4122 is not connected to the second pressure port 4114, and at the same time, the first return port 4115 is closed and the second return port 4116 is open, and the water flows out of the return chamber 4112 through the driving water flow outlet 404 under the drive of the surging hydraulic pump 42, enters the driving pressure chamber 4111 through the driving water flow inlet 403, and enters the first end cavity through the first pressure port 4113 and the first reversing port 4121, and flows out through the first surging water flow interface 401; at the same time, the water flows into the second end cavity through the second surging water flow interface 402 under the suction action of the surging hydraulic pump 42, and flows into the return chamber 4112 through the second surging water flow interface 4116, forming a water flow circulation. At this time, since the water pressure in the first end cavity is greater than the water pressure in the second end cavity, the double piston 413 moves to the right under the pressure difference, and pushes the reversing slider 415 to move to the right, so that the telescopic elastic push rod 416 is compressed and shortened. The movement of the reversing slider 415 causes the sleeve push block 4123 to slide in the buffer slide groove 4151, and the position of the water pipe sleeve 412 on the driving water pipe 411 remains unchanged.

[0048] When the double piston 413 moves rightward to the position shown in FIG. (b), the telescopic elastic push rod 416 is compressed to the shortest state. At this time, the sleeve push block 4123 slides to the end of the buffer chute 4151 close to the left side, and the position of the water pipe sleeve 412 on the driving water pipe 411 remains unchanged, and the direction of the water flow also remains unchanged.

[0049] When the double piston 413 continues to move to the right, the reversing slider 415 moves quickly to the right under the push of the telescopic elastic push rod 416, and pushes the water pipe sliding sleeve 412 to slide quickly to the right side of the driving water pipe 411 as shown in Figure (c) through the sliding sleeve pushing block 4123. At this time, the first reversing port 4121 is not connected to the first pressure port 4113, while the second reversing port 4122 is connected to the second pressure port 4114, and at the same time, the first return port 4115 is open and the second return port 4116 is closed. Driven by the turbulent hydraulic pump 42, the water flows out of the return chamber 4112 through the driving water flow outlet 404, enters the driving pressure chamber 4111 through the driving water flow inlet 403, enters the second end chamber through the second pressure port 4114 and the second reversing port 4122, and flows out through the second turbulent water flow interface 402; at the same time, under the suction action of the turbulent hydraulic pump 42, the water flows into the first end chamber through the first turbulent water flow interface 401, and flows into the return chamber 4112 through the first return port 4115, forming a water flow cycle. In this way, the flow direction of the water flowing through the first turbulent water flow interface 401 and the second turbulent water flow interface 402 is changed. At this time, since the water pressure in the second end cavity is greater than the water pressure in the first end cavity, the double piston 413 moves to the left under the push of the water pressure difference, and pushes the reversing slider 415 to move to the left, so that the telescopic elastic push rod 416 is compressed and shortened. The movement of the reversing slider 415 causes the sleeve push block 4123 to slide in the buffer slide groove 4151, and the position of the water pipe sleeve 412 on the driving water pipe 411 remains unchanged.

[0050] When the double piston 413 moves to the left as shown in Figure (d), the telescopic elastic push rod 416 is compressed to the shortest state. At this time, the sleeve push block 4123 slides to the end of the buffer chute 4151 close to the right side, and the position of the water pipe sleeve 412 on the driving water pipe 411 remains unchanged, and the direction of the water flow also remains unchanged.

[0051] Once the double piston 413 continues to move to the right, the reversing slider 415 moves quickly to the left under the push of the telescopic elastic push rod 416, and pushes the water pipe sleeve 412 to quickly slide to the left side of the driving water pipe 411 as shown in Figure (d) through the sleeve push block 4123. The relative position between the water pipe sleeve 412 and the driving water pipe 411 returns to the state shown in Figure (a), and the flow direction of the water flowing through the first agitated water flow interface 401 and the second agitated water flow interface 402 changes again, forming an agitated output state in which the water flow direction changes periodically. Compared with changing the direction of the water flow through the reversing valve, it can change the direction of the water flow with a larger flow rate, resulting in a better agitation cleaning effect.

[0052] In another preferred embodiment of the cold plate flow channel cleaning device of the present application, as Figure 1As shown, a water flow driving device 16 is also provided on the cleaning pipeline 1. The water flow driving device 16 can form a circulating water flow with a constant flow direction in the cleaning pipeline 1, and a continuous circulating cleaning water flow is input into the cold plate flow channel through the first flow channel interface 11 and the second flow channel interface 12 to continuously clean the scale in the flow channel.

[0053] A second three-way valve 43 is arranged between the first turbulent water flow interface 401, the water outlet of the water flow driving device 16 and the outer interface of the first cleaning particle filter 14, and a third three-way valve 44 is arranged between the second turbulent water flow interface 402, the water inlet of the water flow driving device 16 and the outer interface of the second cleaning particle filter 15. The second three-way valve 43 and the third three-way valve 44 can switch the valve core direction at the same time under the control of the controller, so that the first cleaning particle filter 14 and the second cleaning particle filter 15 are switched at the same time to be connected to the first turbulent water flow interface 401 and the second turbulent water flow interface 402 respectively, so that the turbulent water flow generated by the water flow turbulence device 4 can be used to clean the flow channel of the cold plate; or the first cleaning particle filter 14 and the second cleaning particle filter 15 are switched at the same time to be connected to the two ends of the water flow driving device 16 respectively, so that the circulating water flow generated by the water flow driving device 16 can be used to clean the flow channel of the cold plate.

[0054] A turbidity sensor 45 can also be provided on the cleaning pipeline 1. The turbidity of the cleaning water can be detected by the turbidity sensor 45. When the turbidity of the cleaning water no longer increases, it can be determined that the scale in the cold plate flow channel has been cleaned. At this time, the flow channel of the cold plate does not need to be circulated and cleaned, and the post-cleaning gas maintenance operation can be continued.

[0055] As a specific implementation of the cold plate flow channel cleaning device of the present application, Figure 1 As shown, a sewage pool 17 is also provided on the cleaning pipeline 1, and the sewage pool 17 is provided on the inlet side of the water flow driving device 16 on the cleaning pipeline 1. The water supply interface 13 is provided between the water flow driving device 16 and the sewage pool 17, so that the cleaning water input through the water supply interface 13 can fill the flow channel of the cleaning pipeline 1 and the cold plate, and circulate and clean the flow channel of the cold plate. A one-way valve 18 is provided between the water supply interface 13 and the sewage pool 17 to prevent the cleaning water input through the water supply interface 13 from flowing directly to the sewage pool 17. A water supply solenoid valve 131 is provided between the water supply interface 13 and the cleaning pipeline 1, which is used to cut off the water supply waterway, stop the supply of cleaning water, and prevent the circulating water in the cleaning pipeline 1 from flowing out through the water supply interface 13.

[0056] A fourth three-way valve 171 is provided between the sewage pool 17 and the cleaning pipeline 1, and the fourth three-way valve 171 is connected between the sewage pool 17, the second three-way valve 43 and the one-way valve 18. By controlling the valve core action of the second three-way valve 43, the second three-way valve 43 can be switched to be connected with the sewage pool 17, so that the cleaning sewage after cleaning the cold plate flow channel flows into the sewage pool 17, and the clean water is continuously input through the water supply interface 13 to clean the flow channel of the cold plate; or the second three-way valve 43 is switched to be connected with the one-way valve 18, so that the water flow after cleaning the cold plate flow channel flows back to the water flow driving device 16 through the one-way valve to form a circulating cleaning water flow.

[0057] In some embodiments of the cold plate flow channel cleaning device of the present application, Figure 1 As shown, a descaling agent container 5 is also provided on the cleaning pipeline 1, and a descaling agent is stored in the descaling agent container 5. The descaling agent can use acetic acid, calcium and magnesium ion complexing agent, detergent and other chemical agents that are helpful in removing scale in the cold plate flow channel. A descaling agent discharge solenoid valve 51 is provided between the descaling agent container 5 and the cleaning pipeline 1. When the descaling agent discharge solenoid valve 51 is opened, the descaling agent can be added to the cleaning pipeline 1, thereby increasing the cleaning effect of the cleaning water flow on the scale in the cold plate flow channel.

[0058] In some embodiments of the cold plate flow channel cleaning device of the present application, Figure 1 As shown, an anti-scaling agent container 6 is also provided on the cleaning pipeline 1. The anti-scaling agent container 6 stores an anti-scaling agent. The anti-scaling agent can be various chemical agents that help prevent scale from being generated in the cold plate flow channel, such as organic acid, corrosion inhibitor, dispersant, polyol, polymer, etc. An anti-scaling agent discharge solenoid valve 61 is provided between the anti-scaling agent container 6 and the cleaning pipeline 1. Usually, after cleaning the flow channel of the cold plate, the flow channel of the cold plate is rinsed clean with clean water, and the anti-scaling agent discharge solenoid valve 61 is opened to discharge the anti-scaling agent from the cleaning pipeline 1, and then the anti-scaling agent is transported to the flow channel of the cold plate by water flow, and a layer of anti-scaling agent is attached to the wall of the flow channel of the cold plate to slow down the scaling rate in the flow channel of the cold plate.

[0059] In other embodiments of the cold plate flow channel cleaning device of the present application, Figure 1 As shown, an ultrasonic vibrator 7 is provided on the cleaning pipeline 1 outside the second cleaning particle filter 15. The ultrasonic vibrator 7 can use various suitable devices that can generate ultrasonic vibrations in water. The ultrasonic vibrator 7 can be used to clean the flow channel of the cold plate by other cleaning methods, and the high-frequency vibration generated by water under the action of ultrasonic waves can be used to impact the scale in the flow channel, which is beneficial to the separation of the scale from the flow channel wall and improves the cleaning effect of the cold plate flow channel.

[0060] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cold plate flow channel cleaning device, characterized in that: The invention comprises a cleaning pipeline (1), a cleaning particle storage device (2), a cleaning particle driving device (3) and a water flow agitation device (4); the cleaning pipeline (1) is provided with a first flow channel interface (11) and a second flow channel interface (12) for connecting to a cold plate flow channel, and a water supply interface (13) connected to an external water supply pipeline; a first cleaning particle filter (14) and a second cleaning particle filter (15) are respectively provided in the cleaning pipeline (1) in the region adjacent to the first flow channel interface (11) and the second flow channel interface (12); the cleaning particle storage device (2) stores cleaning particles and is connected to the first flow channel interface (11) on the cleaning pipeline (1). The cleaning particle drive device (3) is arranged between the cleaning particle storage device (2) and the cleaning pipeline (1) on the side of the second cleaning particle filter (15) away from the second flow channel interface (12), and the water flow agitation device (4) is connected between the side of the first cleaning particle filter (14) away from the first flow channel interface (11) and the side of the second cleaning particle filter (15) away from the second flow channel interface (12), so as to be able to drive the water flow to flow through the first flow channel interface (11) and the second flow channel interface (12) in a periodic reverse direction.

2. The cold plate flow channel cleaning device according to claim 1, characterized in that: The cleaning particle storage device (2) is provided with a cleaning particle inlet and outlet (21) and a driving water flow inlet and outlet (22); a cleaning particle isolation net (23) is provided in the cleaning particle storage device (2) to separate the cleaning particle storage device (2); the cleaning particles are stored on one side of the cleaning particle isolation net (23) in the cleaning particle storage device (2); the cleaning particle inlet and outlet (21) is provided on the side of the cleaning particle storage device (2) where the cleaning particles are located; the driving water flow inlet and outlet (22) is provided on the cleaning particle storage device (2) and on the side of the cleaning particle isolation net (23) where the cleaning particles are located. On the side opposite to the cleaning particle inlet and outlet (21), a first three-way valve (24) is provided between the cleaning particle storage device (2) and the cleaning pipeline (1); the first three-way valve (24) is respectively connected to the first flow channel interface (11), the first cleaning particle filter (14) and the cleaning particle inlet and outlet (21), so as to be able to switch the first flow channel interface (11) to be connected to the first cleaning particle filter (14), or to be connected to the cleaning particle inlet and outlet (21); the cleaning particle driving device (3) is connected to the driving water flow inlet and outlet (22).

3. The cold plate flow channel cleaning device according to claim 2, characterized in that: The cleaning particle driving device (3) comprises a cleaning particle driving hydraulic pump (31) and a driving fluid reversing valve (32), wherein the cleaning particle driving hydraulic pump (31) is connected to the driving fluid reversing valve (32), and the driving fluid reversing valve (32) is respectively connected to the driving water flow inlet and outlet (22) and a side of the second cleaning particle filter (15) away from the second flow channel interface (12).

4. The cold plate flow channel cleaning device according to claim 1, characterized in that: The water flow agitation device (4) comprises a water flow reversing chamber (41) and an agitation hydraulic pump (42); the water flow reversing chamber (41) is provided with a first agitation water flow interface (401), a second agitation water flow interface (402), a driving water flow inlet (403) and a driving water flow outlet (404); the agitation hydraulic pump (42) is connected between the driving water flow inlet (403) and the driving water flow outlet (404) so ​​as to be able to drive water flow from the driving water flow outlet (404) to the driving water flow inlet (403). 04) flows toward the driving water flow inlet (403), and the water flow reversing chamber (41) can periodically change the flow direction of the water flow in the first turbulent water flow interface (401) and the second turbulent water flow interface (402) under the impetus of the driving water flow, thereby forming a turbulent water flow with a periodically changed flow direction, and the first turbulent water flow interface (401) and the second turbulent water flow interface (402) are respectively connected to the first cleaning particle filter (14) and the second cleaning particle filter (15).

5. The cold plate flow channel cleaning device according to claim 4, characterized in that: The water flow reversing chamber (41) is provided with a driving water pipe (411), a water pipe sleeve (412) and a double piston (413). The driving water pipe (411) is provided in the middle of the water flow reversing chamber (41) and is connected to the water flow reversing chamber (41) at both ends. A water pipe partition (414) is provided in the driving water pipe (411). The water pipe partition (414) divides the lumen of the driving water pipe (411) into a driving pressure chamber (4111) and a reflux chamber (4112). The walls at both ends of the driving water pipe (411) are respectively provided with a first pressure port (4113) and a second pressure port (4114) which are connected to the driving pressure chamber (4111), and a first pressure port (4113) and a second pressure port (4114) which are connected to the driving pressure chamber (4111). The first reflux port (4115) and the second reflux port (4116) are connected to the reflux chamber (4112); the driving water flow inlet (403) and the driving water flow outlet (404) are respectively connected to the driving pressure chamber (4111) and the reflux chamber (4112); the two ends of the water pipe sleeve (412) are respectively provided with a first reversing port (4121) and a second reversing port (4122) which are arranged corresponding to the first pressure port (4113) and the second pressure port (4114); the water pipe sleeve (412) is sleeved on the driving water pipe (411) and can slide on the driving water pipe (411), so as to switch the water pipe sleeve (412) to the first reflux chamber (4112). The blocking state of the flow port (4115) and the second return port (4116), as well as the communication state between the first pressure port (4113) and the first reversing port (4121), and the communication state between the second pressure port (4114) and the second reversing port (4122); the double piston (413) includes a first piston (4131), a piston connecting sleeve (4132) and a second piston (4133), the piston connecting sleeve (4132) is connected between the first piston (4131) and the second piston (4133), a reversing slide groove (4134) is provided on the piston connecting sleeve (4132), and a reversing slider (4134) is provided in the reversing slide groove (4134). 15), a buffer groove (4151) is provided on one side of the reversing slider (415) adjacent to the water pipe sleeve (412), a sleeve push block (4123) is provided on the outer side of the water pipe sleeve (412), the piston connecting sleeve (4132) is sleeved on the water pipe sleeve (412), so that the sleeve push block (4123) is located in the buffer groove (4151), a telescopic elastic push rod (416) is hinged between the reversing slider (415) and the wall of the water flow reversing chamber (41), and the first agitated water flow interface (401) and the second agitated water flow interface (402) are respectively provided on the water flow reversing chamber (41) on both sides of the double piston (413).

6. The cold plate flow channel cleaning device according to claim 4, characterized in that: The cleaning pipeline (1) is also provided with a water flow driving device (16); a second three-way valve (43) is provided between the first agitated water flow interface (401) and the first cleaning particle filter (14); a third three-way valve (44) is provided between the second agitated water flow interface (402) and the second cleaning particle filter (15); the two ends of the water flow driving device (16) are respectively connected to the second three-way valve (43) and the third three-way valve (44); the second three-way valve (43) and the third three-way valve (44) can switch the first cleaning particle filter (14) and the second cleaning particle filter (15) to be connected to the first agitated water flow interface (401) and the second agitated water flow interface (402), or to be connected to the water flow driving device (16).

7. The cold plate flow channel cleaning device according to claim 6, characterized in that: The cleaning pipeline (1) is also provided with a sewage pool (17), the sewage pool (17) being provided at the inlet side of the water flow driving device (16), the water supply interface (13) being provided between the water flow driving device (16) and the sewage pool (17), a one-way valve (18) being provided between the water supply interface (13) and the sewage pool (17), a water supply solenoid valve (131) being provided between the water supply interface (13) and the cleaning pipeline (1), a fourth three-way valve (171) being provided between the sewage pool (17) and the cleaning pipeline (1), the fourth three-way valve (171) being connected between the sewage pool (17), the second three-way valve (43) and the one-way valve (18), so as to be able to switch the second three-way valve (43) to be connected to the sewage pool (17) or to be connected to the one-way valve (18).

8. The cold plate flow channel cleaning device according to any one of claims 1 to 7, characterized in that: The cleaning pipeline (1) is also provided with a descaling agent container (5), in which a descaling agent is stored, and a descaling agent discharge solenoid valve (51) is provided between the descaling agent container (5) and the cleaning pipeline (1).

9. The cold plate flow channel cleaning device according to any one of claims 1 to 7, characterized in that: The cleaning pipeline (1) is also provided with an anti-scaling agent container (6), in which an anti-scaling agent is stored, and an anti-scaling agent discharge solenoid valve (61) is provided between the anti-scaling agent container (6) and the cleaning pipeline (1).

10. The cold plate flow channel cleaning device according to any one of claims 1 to 7, characterized in that: An ultrasonic vibrator (7) is provided on the cleaning pipeline (1) at a side of the second cleaning particle filter (15) away from the second flow channel interface (12).

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