Cooling liquid recycling device and working method thereof

Abstract

The invention relates to a cooling liquid recycling device and a working method thereof. The device comprises a water tank, a liquid supply pipeline, a water pump, a first backflow pipeline, a second backflow pipeline, a cooling water tower and a controller. And the liquid supply pipeline is communicated with the water tank and is also used for being communicated to a liquid inlet of equipment to be cooled. The water pump is arranged on the liquid supply pipeline. One end of the first backflow pipeline is communicated with a liquid outlet of the to-be-cooled equipment, and the other end is communicated with the water tank. One end of the second return pipeline is communicated to a liquid outlet of the to-be-cooled equipment, and the other end is communicated with the water tank. And the cooling water tower is arranged on the second backflow pipeline. And the controller is used for controlling the opening and closing actions of the first control switch and the second control switch. When the cooling tower is used, the situation that the operation stability and reliability of the cooling tower are reduced due to long-time high-load operation of the cooling tower in a single working mode can be avoided, and then the cooling effect and the operation stability of the cooling tower during long-term working can be guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of coolant recycling, and in particular to a coolant recycling device and a working method thereof. Background Art

[0002] The coolant recycling device in the expanded tobacco workshop mainly provides cooling coolant for the carbon dioxide compressor and refrigeration unit equipment to reduce the temperature of the carbon dioxide compressor and refrigeration unit equipment. The coolant recycling device in the related art usually includes components such as a circulating water pump, a cooling water tower, a water tank, pipes, valves, instruments, and a local control cabinet. During operation, the cooling water is cooled to ≤33°C by the cooling water tower and transported to the carbon dioxide compressor and refrigeration unit by the circulating water pump to cool the high-temperature carbon dioxide gas compressed by the compressor; cool the compressor cylinder and crankcase of the refrigeration unit; and cool the Freon gas compressed by the refrigeration unit to convert it into Freon liquid. The cooling water after heat exchange is returned to the cooling water tower and reused after being cooled by the cooling water tower.

[0003] However, during long-term use, the following problems exist: the coolant circulation device is overloaded for a long time, and the outlet temperature of the circulating water pump will reach about 40°C, exceeding the equipment technical standard of 33°C. There are certain equipment safety hazards, poor cooling effect, and poor operating stability. Summary of the Invention

[0004] Based on this, it is necessary to overcome the defects of the prior art and provide a coolant circulation device and a working method thereof, which can ensure the cooling effect and operation stability of long-term work.

[0005] In one aspect, the present application provides a coolant circulation device, comprising:

[0006] water tank;

[0007] a liquid supply pipeline, the liquid supply pipeline being in communication with the water tank and further configured to be connected to a liquid inlet of a device to be cooled;

[0008] A water pump, the water pump being arranged on the liquid supply pipeline and being used to provide power so that the coolant enters the device to be cooled through the liquid inlet;

[0009] a first return line, one end of which is connected to the liquid outlet of the device to be cooled, the other end of which is connected to the water tank, and a first control switch is provided on the first return line;

[0010] a second return line, one end of which is connected to the liquid outlet of the device to be cooled, the other end of which is connected to the water tank, and a second control switch is provided on the second return line;

[0011] a cooling water tower, the cooling water tower being arranged on the second return pipeline; and

[0012] A controller, wherein the first control switch and the second control switch are both electrically connected to the controller, and the controller is used to control the opening and closing actions of the first control switch and the second control switch.

[0013] In one embodiment, the coolant circulation device also includes a temperature sensor; the temperature sensor is arranged on the water outlet side of the water pump, and the temperature sensor is used to sense the temperature of the water outlet side of the water pump; the temperature sensor is electrically connected to the controller, and the controller is used to control the opening and closing actions of the first control switch and the second control switch according to the sensed temperature of the temperature sensor.

[0014] In one embodiment, the volume of the water tank is 10,000L to 70,000L.

[0015] In one embodiment, the coolant circulation device also includes a cleaning component; the cleaning component includes a cleaning pipeline and a water gun; one end of the cleaning pipeline is connected to the liquid supply pipeline and is located on the water outlet side of the water pump, or one end of the first return pipeline and one end of the second return pipeline are both connected to one end of the cleaning pipeline; the other end of the cleaning pipeline is connected to the water gun.

[0016] In one embodiment, the cleaning component further includes a third control switch and a pressure regulating valve; the third control switch and the pressure regulating valve are both arranged on the cleaning pipeline.

[0017] In one embodiment, the coolant circulation device further includes a liquid replenishing mechanism; the liquid replenishing mechanism is connected to the water tank, and the liquid replenishing mechanism is used to replenish the coolant into the water tank.

[0018] In one embodiment, a plurality of protrusions are provided on the side wall of the water tank.

[0019] In one embodiment, the side wall of the water tank includes a plurality of side surfaces connected end to end, and each of the side surfaces is provided with a protrusion.

[0020] In one embodiment, the water tank is installed on the first floor or the second floor, and / or the cooling water tower is installed on the top floor.

[0021] On the other hand, the present application also provides a working method of the coolant recycling device, comprising:

[0022] Start the water pump;

[0023] When the water temperature at the outlet side of the water pump is higher than a first preset value, the second control switch is controlled to be turned on and the first control switch is turned off;

[0024] When the water temperature at the outlet side of the water pump is lower than a second preset value, the first control switch is controlled to be turned on and the second control switch is turned off.

[0025] The above-described coolant circulation device and operating method are provided with a first return line and a second return line, a first control switch is provided on the first return line, a second control switch is provided on the second return line, and a cooling water tower is provided on the second return line. The first control switch and the second control switch are each opened and closed under the control of a controller. Thus, during use, the coolant circulation device can operate in at least two circulation modes as needed, and can promptly switch and adjust the corresponding circulation mode based on the usage status of the cooling water tower and the water outlet temperature of the water pump. This can prevent the cooling water tower from operating in a single operating mode at high load for a long time, which may reduce its operational stability and reliability, thereby ensuring the cooling effect and operational stability of the cooling water tower during long-term operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a structural diagram of a coolant recycling device according to an embodiment of the present application.

[0027] Figure 2 for Figure 1 Enlarged structural diagram at point A.

[0028] Figure 3 for Figure 1 The structural diagram of the cleaning components in the coolant circulation device is shown.

[0029] Figure 4 for Figure 1 Another perspective structural diagram of the coolant circulation device shown.

[0030] 10. Water tank; 11. Protrusion; 12. Fluid replenishing mechanism; 20. Liquid supply pipeline; 30. Water pump; 40. First return pipeline; 41. First control switch; 50. Second return pipeline; 51. Second control switch; 60. Cooling water tower; 70. Equipment to be cooled; 80. Cleaning component; 81. Cleaning pipeline; 82. Water gun; 83. Third control switch; 84. Pressure regulating valve; 90. Main pipeline. DETAILED DESCRIPTION

[0031] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0032] It should be noted that the coolant in this embodiment includes, but is not limited to, cooling water or other liquids. In one specific embodiment, the coolant in this embodiment is selected from cooling water, and the specific example of the coolant being cooling water is used. However, it is understood that the coolant may also be any other type of liquid that can be used for cooling, depending on actual needs.

[0033] It should also be noted that the equipment to be cooled in this embodiment includes but is not limited to at least one of a carbon dioxide compressor and a refrigeration unit, etc., and can be specifically configured according to actual conditions and is not limited here.

[0034] The equipment to be cooled is provided with a heat exchange channel. The heat exchange channel has a liquid inlet and a liquid outlet. Coolant enters the heat exchange channel through the liquid inlet, exchanges heat with the equipment to be cooled as it flows through the heat exchange channel, lowering the temperature of the equipment. The cooled liquid is then discharged from the liquid outlet.

[0035] See Figure 1 and Figure 2 , Figure 1 The figure shows a structural diagram of a coolant circulation device according to an embodiment of the present application. Figure 2 Shown Figure 1 Enlarged structural diagram at point A. An embodiment of the present application provides a cooling liquid recycling device, comprising: a water tank 10, a liquid supply pipeline 20, a water pump 30, a first return pipeline 40, a second return pipeline 50, a cooling water tower 60 and a controller.

[0036] The liquid supply pipeline 20 is connected to the water tank 10 , and is also used to be connected to the liquid inlet of the device to be cooled 70 .

[0037] The water pump 30 is provided on the liquid supply pipeline 20 , and is used to provide power so that the coolant enters the device to be cooled 70 through the liquid inlet.

[0038] For example, the water pump 30 in this embodiment can be either a controlled pump or a manually adjustable pump, or a controlled pump with a manual adjustment function. When the water pump 30 is configured as a controlled pump, it is electrically connected to a controller and starts and stops, and adjusts its operating power under the control of the controller. When the water pump 30 is configured as a manually adjustable pump, a switch button is provided on the manually adjustable pump, and the water pump 30 starts and stops, and its power is adjusted by operating the switch button.

[0039] One end of the first return line 40 is used to be connected to the liquid outlet of the device to be cooled 70 , and the other end of the first return line 40 is connected to the water tank 10 . A first control switch 41 is provided on the first return line 40 .

[0040] Specifically, the water tank 10 is provided with a first water outlet. The first water outlet, for example, is located at the bottom of the water tank 10 and facilitates the timely extraction of the coolant within the water tank 10. The liquid supply line 20 is connected to the first water outlet, and thus to the water tank 10. When the water pump 30 is operating, the coolant within the water tank 10 flows through the first water outlet into the liquid supply line 20, and is then output from the liquid supply line 20 to the heat exchange channel of the device to be cooled 70.

[0041] Specifically, the water tank 10 is further provided with a first water return port. The first water return port is, for example, located at the top of the water tank 10. The other end of the first return pipe 40 is connected to the first water return port. In other words, the first return pipe 40 is connected to the water tank 10. When the water pump 30 is operating and the first control switch 41 is turned on, the coolant can flow back into the water tank 10 through the first return pipe 40.

[0042] One end of the second return line 50 is used to be connected to the liquid outlet of the device to be cooled 70 , and the other end of the second return line 50 is connected to the water tank 10 . A second control switch 51 is provided on the second return line 50 .

[0043] Specifically, the other end of the second return line 50 is connected to the first water return port. That is, the second return line 50 is connected to the water tank 10. When the water pump 30 is operating and the second control switch 51 is turned on, the coolant can flow through the second return line 50, be cooled by the cooling water tower 60, and then flow back into the water tank 10.

[0044] The cooling water tower 60 is disposed on the second return pipe 50 .

[0045] For example, when the coolant flows through the cooling tower 60, it comes into contact with the air in the cooling tower 60, and uses evaporation to dissipate waste heat in the coolant, thereby reducing the temperature of the coolant; after cooling for a period of time, the coolant returns to the water tank 10 for the next cycle.

[0046] The first control switch 41 and the second control switch 51 are both electrically connected to a controller, and the controller is used to control the opening and closing actions of the first control switch 41 and the second control switch 51 .

[0047] The above-mentioned coolant circulation device is provided with a first return line 40 and a second return line 50, and a first control switch 41 is provided on the first return line 40, a second control switch 51 is provided on the second return line 50, and a cooling water tower 60 is provided on the second return line 50. The first control switch 41 and the second control switch 51 are each opened and closed under the control of a controller. In this way, when in use, the coolant circulation device can operate in at least two circulation modes as needed, and can timely switch and adjust the corresponding circulation mode according to the use status of the cooling water tower 60 and the outlet temperature of the water pump 30. This can prevent the cooling water tower 60 from operating in a single working mode for a long time at high load, which may reduce its operating stability and reliability, thereby ensuring the cooling effect and operating stability of the cooling water tower 60 during long-term operation.

[0048] For example, when the coolant circulation device is in use, under the premise of starting the water pump 30, it can work in at least two circulation modes as required. In circulation mode 1, for example, when the water temperature at the outlet side of the water pump 30 is higher than the first preset value, the controller controls the second control switch 51 to be turned on, and for example, the first control switch 41 is turned off, that is, the second return line 50 is used in the circulation line, the first return line 40 is suspended, and the coolant only enters the second return line 50 after heat exchange with the device to be cooled 70, and is discharged from the second return line 50. 0 is cooled and then flows back to the water tank 10 for the next cycle; in cycle mode 2, for example, when the water temperature at the outlet side of the water pump 30 is lower than the second preset value, the controller controls to open the first control switch 41 and, for example, disconnect the second control switch 51, that is, the first return line 40 is used in the circulation line, and the second return line 50 is suspended. After the coolant exchanges heat with the device to be cooled 70, it only enters the first return line 40, and flows back to the water tank 10 from the first return line 40, and the next cycle is carried out. It can be seen that in cycle mode 1, since the coolant flows through the cooling water tower 60, it can be quickly cooled by the cooling water tower 60, and the temperature of the coolant can be reduced to below the second preset value. The coolant with a lower temperature can improve the cooling effect on the device to be cooled 70. In circulation mode 2, since the coolant does not flow through the cooling water tower 60, the cooling water tower 60 can stop working, which can save energy, improve stability and reliability, and avoid long-term high-load operation resulting in reduced operational stability and reliability; moreover, the coolant temperature in the water tank 10 is lower than the first preset value, and during the process of being transported to the equipment to be cooled 70 through the liquid supply pipeline, the temperature of the equipment to be cooled 70 can still be reduced; moreover, since the coolant does not flow through the cooling water tower, the coolant participates in the circulation speed faster and the cooling time is shorter, which can save time and improve work efficiency.

[0049] The first preset value and the second preset value are each flexibly adjusted and set according to actual needs and are not limited here. In this embodiment, the first preset value is greater than the second preset value. Optionally, the first preset value includes but is not limited to 38°C to 40°C, specifically 38°C, 39°C, or 40°C. The second preset value includes but is not limited to 28°C to 33°C, specifically 28°C, 30°C, or 33°C.

[0050] For example, the coolant circulation device can also operate in circulation mode three. For example, when the water temperature on the outlet side of the water pump 30 is higher than the first preset value, and the time for which the water temperature is higher than the first preset value is greater than the set value, not only the second control switch 51 is turned on, but also the second control switch 51 is controlled to be turned on, that is, the first return pipe 40 and the second return pipe 50 are both used in the circulation pipe, and the coolant enters the first return pipe 40 and the second return pipe 50 after heat exchange with the equipment to be cooled 70, and flows back to the water tank 10 from the first return pipe 40 and the second return pipe 50.

[0051] Based on the aforementioned embodiment, the first control switch 41 and the second control switch 51 are configured as control switches with adjustable valve openings. For example, in circulation mode three, the openings of the first and second control switches 41, 51 can be flexibly adjusted and controlled according to actual needs to distribute flow to the first and second return lines 40, 50 in a targeted ratio. This improves and optimizes cooling efficiency and enhances the overall operational stability and reliability of the device.

[0052] The target ratio can be adjusted and set according to actual needs and is not limited here.

[0053] Based on the above embodiment, when the water temperature at the outlet side of the water pump 30 is higher than the first preset value, and the time the water temperature is higher than the first preset value is less than the set value, the coolant circulation device operates in circulation mode 1.

[0054] For example, the coolant circulation device can also operate in circulation mode four. When the second return line 50 fails, for example, the cooling water tower 60 fails, the controller controls to open the first control switch 41, and for example, disconnects the second control switch 51, that is, the first return line 40 is used in the circulation line, and the second return line 50 is suspended. After the coolant exchanges heat with the equipment to be cooled 70, it only enters the first return line 40 and flows back to the water tank 10 from the first return line 40.

[0055] Among them, in circulation mode four, since the outlet temperature of the water pump 30 is not a necessary condition, there is no need to compare the outlet temperature of the water pump 30 with the first preset value and the second preset value. As long as it is determined that the second return line 50 has a fault, the system can operate in circulation mode four to ensure the normal operation of the coolant circulation device.

[0056] Based on the above embodiment, when the outlet temperature of the water pump 30 is lower than the first preset value and higher than the second preset value, the coolant circulation device is controlled to operate in circulation mode 1 or circulation mode 2 according to seasonal changes.

[0057] Generally speaking, in summer and autumn, the heat generated by the device to be cooled 70 is relatively large, and a relatively large amount of heat dissipation is required; in winter and spring, the heat generated by the device to be cooled 70 is relatively small, and a relatively small amount of heat dissipation is required.

[0058] Specifically, when the coolant circulation device is in summer and autumn, the coolant circulation device is controlled to operate in circulation mode 1; when the coolant circulation device is in winter and spring, the coolant circulation device is controlled to operate in circulation mode 2.

[0059] For example, the coolant circulation device further includes a temperature sensor. The temperature sensor is disposed on the outlet side of the water pump 30 and is used to sense the temperature of the outlet side of the water pump 30. The temperature sensor is electrically connected to a controller, which is used to control the opening and closing of the first control switch 41 and the second control switch 51 based on the temperature sensed by the temperature sensor.

[0060] Based on the above example, the temperature sensor may be one, and the temperature sensor may be directly disposed on the water outlet side of the water pump 30 , that is, at the liquid inlet of the device to be cooled 70 .

[0061] Of course, the number of temperature sensors may also be two, three, or more. When multiple temperature sensors are provided, six temperature sensors are used as an example. However, this does not limit the number of temperature sensors, and the number of temperature sensors may be greater or less. Among them, the first temperature sensor is, for example, arranged at the water outlet side of the water pump 30, for sensing the water outlet side temperature of the water pump 30; the second temperature sensor is, for example, arranged at the liquid outlet of the equipment to be cooled 70, for sensing the temperature at the liquid outlet of the equipment to be cooled 70; the third temperature sensor is, for example, arranged at the liquid inlet of the second return pipe 50, for sensing the temperature at the liquid inlet of the second return pipe 50; the fourth temperature sensor is, for example, arranged at the liquid outlet of the second return pipe 50, for sensing the temperature at the liquid outlet of the second return pipe 50; the fifth temperature sensor is, for example, arranged at the liquid inlet of the first return pipe 40, for sensing the temperature at the liquid inlet of the first return pipe 40; the sixth temperature sensor is, for example, arranged at the liquid outlet of the first return pipe 40, for sensing the temperature at the liquid outlet of the first return pipe 40.

[0062] For example, the first control switch 41 and the second control switch 51 can be independently selected and flexibly configured according to actual needs, as long as the opening size can be adjusted to adjust the flow rate of the coolant in each pipeline. Optionally, the first control switch 41 and the second control switch 51 include, but are not limited to, pneumatic ball valves or electrically controlled valves.

[0063] For example, the device to be cooled 70 can be set as one or multiple. When the device to be cooled 70 is set as multiple, it can be two, three, or another number. The multiple devices to be cooled 70 are arranged in parallel between the liquid supply pipeline 20 and the first return pipeline 40 and the second return pipeline 50. That is, the liquid inlets of the multiple devices to be cooled 70 are all connected to the liquid supply pipeline 20, and the liquid outlets of the multiple devices to be cooled 70 are all connected to the first return pipeline 40 and the second return pipeline 50. In this way, the coolant circulation device can cool the multiple devices to be cooled 70.

[0064] In a specific embodiment, there are two devices to be cooled 70 , which are a carbon dioxide compressor and a refrigeration unit respectively.

[0065] For example, the capacity of the water tank 10 includes, but is not limited to, 10,000 L to 70,000 L, specifically 10,000 L, 20,000 L, 30,000 L, 35,000 L, 40,000 L, 50,000 L, 60,000 L, or 70,000 L. Thus, the weight of the coolant in the water tank 10 reaches several tens of tons. Due to the high weight of the coolant, the temperature of the coolant does not easily rise in a short period of time when operating in circulation mode 2, resulting in high operational stability and reliability, and being able to meet the cooling requirements of the device 70 to be cooled.

[0066] Generally speaking, the water tank 10 needs to be regularly changed to prevent the accumulation of debris such as mud, sand, and gravel. In order to prevent moss from growing inside the water tank 10 and to keep the cooling water neutral or weakly alkaline, it needs to be drained regularly. However, when the weight of the coolant in the water tank 10 is large, each water change results in a large amount of water waste, resulting in low water resource utilization.

[0067] See also Figure 1 、 Figure 3 and Figure 4 For example, the coolant recycling device also includes a cleaning assembly 80. This cleaning assembly 80 includes a cleaning line 81 and a water gun 82. One end of the cleaning line 81 is connected to the liquid supply line 20 and is located on the outlet side of the water pump 30. Alternatively, one end of the first return line 40 and one end of the second return line 50 are both connected to one end of the cleaning line 81. The other end of the cleaning line 81 is connected to the water gun 82. In this way, when the coolant in the water tank 10 needs to be discharged, the coolant in the water tank 10 enters the cleaning line 81 and is ejected outward through the water gun 82. The coolant ejected from the water gun 82 can be used to rinse and clean the inner walls of equipment such as the deodorization system, thereby performing maintenance operations on the deodorization system. Thus, utilizing high-pressure, high-flow, and temperature-controlled coolant can solve the problem of difficult cleaning and maintenance of equipment such as rooftop deodorization systems. Furthermore, the coolant discharged from the water tank 10 is fully utilized, avoiding the problem of resource waste.

[0068] Specifically, the coolant recycling device also includes a main pipeline 90. One end of the main pipeline 90 is connected to the outlet of the liquid to be cooled, and the other end of the main pipeline 90 is connected to the first return pipeline 40 and the second return pipeline 50, respectively. One end of the cleaning pipeline 81 is connected to the main pipeline 90. In this way, the coolant in the water tank 10 is heated by the device to be cooled 70 and then enters the main pipeline 90. The main pipeline 90 then outputs the heated coolant to the cleaning pipeline 81, where it is ejected outward by the water gun 82 at a predetermined temperature, thereby achieving a better cleaning effect.

[0069] See also Figures 2 to 4 For example, the cleaning assembly 80 further includes a third control switch 83 and a pressure regulating valve 84. Both the third control switch 83 and the pressure regulating valve 84 are disposed on the cleaning line 81. Thus, when the cleaning assembly 80 is needed, the first control switch 41 and the second control switch 51 are closed, the third control switch 83 is opened, and the pressure regulating valve 84 is used to adjust the injection pressure of the coolant ejected from the cleaning line 81. This ensures that the coolant is ejected at an appropriate pressure, achieving a better cleaning effect.

[0070] For example, the cleaning pipeline 81 includes but is not limited to a hose. In this way, the free end of the water gun 82 can be increased, and the position of the water gun 82 can be flexibly adjusted according to needs, thereby having a better cleaning effect.

[0071] For example, the coolant recycling device further includes a refill mechanism 12. The refill mechanism 12 is in communication with the water tank 10 and is used to refill the coolant into the water tank 10. Thus, after the coolant in the water tank 10 is ejected outward through the cleaning assembly 80, new coolant can be promptly refilled into the water tank 10 through the refill mechanism 12.

[0072] Specifically, the liquid replenishing mechanism 12 is, for example, disposed at the top, side, or other locations of the water tank 10 . As long as it is in communication with the water tank 10 , it can replenish the coolant into the water tank 10 .

[0073] Optionally, the fluid replenishing mechanism 12 includes but is not limited to being configured as a fluid replenishing tube. The fluid replenishing tube is used to communicate with the cooling liquid providing mechanism.

[0074] For example, a plurality of protrusions 11 are provided on the side wall of the water tank 10. Thus, the protrusions 11 can increase the structural strength of the side wall of the water tank 10, improve the impact resistance of the side wall, and prevent the side wall of the water tank 10 from being deformed and damaged under the impact of water pressure.

[0075] Specifically, the sidewall of the water tank 10 includes multiple side surfaces connected end to end, with the number of side surfaces being, for example, four or another number. A protrusion 11 is provided on any one of the side surfaces, or at least two of the side surfaces of the water tank 10. Specifically, in this embodiment, each side surface is provided with a protrusion 11. The number of protrusions 11 on each side surface can be, for example, one, two, three, or more, and can be set based on actual needs.

[0076] Optionally, the contour shape of the protrusion 11 includes but is not limited to a circle, a rectangle or other irregular shapes.

[0077] For example, the coolant circulation device further includes a heat dissipation mechanism. The heat dissipation mechanism is used to dissipate heat from the water tank 10. In this way, the temperature of the coolant in the water tank 10 can be reduced. The heat dissipation mechanism includes but is not limited to a fan.

[0078] In the prior art, due to the high rooftop (up to 26 meters) and low water pressure, the factory-installed cleaning device for the odor removal system has a low water flow rate and low water pressure, resulting in incomplete cleaning of water stains and soot, thus failing to meet cleaning and maintenance requirements. The current solution involves operators first filling a large bucket with water, pumping it with a high-powered pump 30, then connecting a water pipe to flush the interior of the odor removal system with high-pressure water for cleaning and maintenance. This process requires carrying the bucket, pump 30, pipes, and power supply, which is time-consuming, produces limited cleaning results, and results in low efficiency.

[0079] Based on this, the main pipeline 90 in this embodiment is specifically arranged on the top floor, and the cleaning component 80 is connected to the main pipeline 90. Under the power of the water pump 30, the coolant enters the device to be cooled 70 and flows through the device to be cooled 70 at a certain water pressure; the coolant is heated by the device to be cooled 70 as it flows through the device to be cooled 70; the heated coolant flows into the main pipeline 90; when the first control switch 41 and the second control switch 51 are closed and the third control switch 83 is opened, the coolant is ejected outward through the cleaning component 80, thereby performing a cleaning and maintenance operation on the odor removal system located on the top floor. Among them, the injection pressure of the coolant ejected outward from the cleaning pipeline 81 can also be adjusted by the pressure regulating valve 84, so that the coolant is ejected outward at an appropriate pressure, further improving the cleaning effect.

[0080] For example, when the cleaning assembly 80 is needed, the central control platform can be switched to cleaning mode, automatically closing the first control switch 41 and the second control switch 51. The start button of the water pump 30 can be manually pressed to clean and maintain the deodorization system using the cleaning pipeline 81. The pressure regulating valve 84 adjusts the water pressure as needed.

[0081] Generally speaking, the equipment to be cooled 70 is usually located on the second floor. To minimize the distance between the water tank 10 and the equipment to be cooled 70, the water tank 10 is typically installed on the first or second floor, specifically, at the cold end of the first floor. This minimizes the distance between the water tank 10 and the equipment to be cooled 70, making it easier for the water pump 30 to pump water from the water tank 10 into the equipment to be cooled 70.

[0082] For example, the cooling tower 60 is installed on the top floor. This location facilitates heat dissipation. Furthermore, the top floor provides ample space for the cooling tower 60. The noise generated by the cooling tower 60 is also minimal.

[0083] Based on the above embodiment, the main pipeline 90 is set on the top floor. Under the power of the water pump 30, the water pressure at the main pipeline 90 can reach above 0.6Mpa, and the water flow rate can reach 1.8m / s. At the same time, with a certain water temperature, the cleaning component 80 can use the coolant in the main pipeline 90 to clean the odor removal system and other equipment located on the top floor.

[0084] On the other hand, the present application also provides a working method of the coolant recycling device using any of the above embodiments, comprising:

[0085] Step S100, start the water pump 30;

[0086] Step S200: When the water temperature at the outlet side of the water pump 30 is higher than a first preset value, the second control switch 51 is turned on and the first control switch 41 is turned off;

[0087] In step S200, the coolant exchanges heat with the device to be cooled 70 before entering the second return line 50. It is then cooled by the cooling water tower 60 in the second return line 50 and flows back into the water tank 10 for the next cycle. Thus, since the coolant flows through the cooling water tower 60, it is rapidly cooled there, allowing the temperature of the coolant to drop below the second preset value. This lower temperature of the coolant improves the cooling effect on the device to be cooled 70.

[0088] Step S300 : When the water temperature at the outlet side of the water pump 30 is lower than a second preset value, the first control switch 41 is controlled to be turned on and the second control switch 51 is turned off.

[0089] In step S300, the coolant exchanges heat with the device to be cooled 70 before entering the first return line 40, where it flows back into the water tank 10 and begins the next cycle. This allows the coolant to suspend operation, saving energy, improving stability and reliability, and avoiding prolonged high-load operation that could reduce operational stability and reliability. Furthermore, the coolant temperature in the water tank 10 remains below a first preset value, allowing the device 70 to be cooled while being transported through the liquid supply line to the device to be cooled 70. Furthermore, since the coolant does not flow through the cooling water tower, the coolant circulates faster, resulting in a shorter cooling time. This saves time and improves work efficiency.

[0090] The operating method of the coolant circulation device described above controls the opening and closing of the first control switch 41 and the second control switch 51 according to the water temperature at the outlet of the water pump 30, allowing the coolant circulation device to operate in at least two circulation modes. The mode is switched based on the temperature at the outlet of the water pump 30, achieving a better cooling effect, maintaining the coolant at a low temperature, and ensuring a stable operating environment for the cold-end equipment or process. Furthermore, this prevents the cooling tower 60 from operating in a single operating mode at high load for extended periods, thereby ensuring the cooling effect and operational stability of the cooling tower 60 during long-term operation.

[0091] On the basis of the above embodiment, after starting the water pump 30 , the method further includes the step of obtaining the water temperature at the outlet side of the water pump 30 .

[0092] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0093] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0094] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0095] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0096] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0097] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0098] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A cooling liquid recycling device, characterized in that: include: water tank; a liquid supply pipeline, the liquid supply pipeline being in communication with the water tank and further configured to be connected to a liquid inlet of a device to be cooled; A water pump, the water pump being arranged on the liquid supply pipeline and being used to provide power so that the coolant enters the device to be cooled through the liquid inlet; a first return line, one end of which is connected to the liquid outlet of the device to be cooled, the other end of which is connected to the water tank, and a first control switch is provided on the first return line; a second return line, one end of which is connected to the liquid outlet of the device to be cooled, the other end of which is connected to the water tank, and a second control switch is provided on the second return line; A cooling water tower, the cooling water tower being arranged on the second return pipe; and A controller, wherein the first control switch and the second control switch are both electrically connected to the controller, and the controller is used to control the opening and closing actions of the first control switch and the second control switch.

2. The coolant circulation device according to claim 1, characterized in that: The coolant circulation device also includes a temperature sensor; the temperature sensor is arranged on the water outlet side of the water pump, and the temperature sensor is used to sense the temperature of the water outlet side of the water pump; the temperature sensor is electrically connected to the controller, and the controller is used to control the opening and closing actions of the first control switch and the second control switch according to the sensed temperature of the temperature sensor.

3. The coolant circulation device according to claim 1, characterized in that: The volume of the water tank is 10000L to 70000L.

4. The coolant circulation device according to claim 1, characterized in that: The coolant circulation device also includes a cleaning component; the cleaning component includes a cleaning pipeline and a water gun; one end of the cleaning pipeline is connected to the liquid supply pipeline and is located on the water outlet side of the water pump, or one end of the first return pipeline and one end of the second return pipeline are both connected to one end of the cleaning pipeline; the other end of the cleaning pipeline is connected to the water gun.

5. The coolant circulation device according to claim 4, characterized in that: The cleaning component further includes a third control switch and a pressure regulating valve; the third control switch and the pressure regulating valve are both arranged on the cleaning pipeline.

6. The coolant circulation device according to claim 4, characterized in that: The coolant circulation device further includes a liquid replenishing mechanism; the liquid replenishing mechanism is communicated with the water tank, and the liquid replenishing mechanism is used to replenish the coolant into the water tank.

7. The coolant circulation device according to claim 1, characterized in that: A plurality of protrusions are provided on the side wall of the water tank.

8. The coolant circulation device according to claim 7, characterized in that: The side wall of the water tank includes a plurality of side surfaces connected end to end in sequence, and each of the side surfaces is provided with a protrusion.

9. The coolant circulation device according to claim 8, characterized in that: The water tank is used to be installed on the first floor or the second floor, and / or the cooling water tower is used to be installed on the top floor.

10. A method for operating the coolant circulation device according to any one of claims 1 to 9, characterized in that: include: Start the water pump; When the water temperature at the outlet side of the water pump is higher than a first preset value, the second control switch is controlled to be turned on and the first control switch is turned off; When the water temperature at the outlet side of the water pump is lower than a second preset value, the first control switch is controlled to be turned on and the second control switch is turned off.

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