Automatic detection and cleaning liquid cooling system for data center

Abstract

The utility model relates to the technical field of heat dissipation equipment, and particularly discloses an automatic detection and cleaning liquid cooling system for a data center. The liquid cooling system comprises a circulating cooling liquid storage tank, a backflow pipeline, a first filter screen, a signal transmitter, an electromagnetic valve, a suction module, an aeration pipe, a photocatalyst filter screen, a light source, a detector and a feeding pipeline, cooling liquid in the liquid cooling system enters the bottom of a circulating cooling liquid storage box through a backflow pipeline, dust and other large-particle impurities are intercepted, algae and other microorganisms float upwards under the action of an aeration pipe and make contact with a photocatalyst filter screen, and algae microorganisms are degraded under the action of a light source; meanwhile, the detector detects the content of microorganisms in the cooling liquid, and after the content reaches the set concentration, the detector controls the opening degree of the feeding pipeline to kill the microorganisms in the cooling liquid. The system has the function of automatically cleaning the cooling liquid, and manual regular sampling for detecting the quality of the cooling liquid is not needed.

Description

Technical Field

[0001] This utility model relates to the technical field of heat dissipation equipment, and more specifically, it relates to a liquid cooling system for data centers with automatic detection and cleaning. Background Technology

[0002] With the development of data centers, the power density of single server racks is increasing, and the higher the density, the greater the heat dissipation. Traditional air-cooling technology uses air as the cooling medium, but air has a low specific heat capacity. Therefore, traditional air-cooling technology can no longer meet the heat dissipation needs of data centers. Liquid cooling technology is gradually replacing air-cooling technology.

[0003] The working principle of liquid cooling technology is as follows: Based on the thermal conduction and convection characteristics of liquids, a circulating pump delivers coolant to the equipment requiring heat dissipation. The liquid absorbs heat, its temperature rises, and then the heat is transferred to the external environment through a heat exchanger. Simultaneously, the coolant is recycled. Because the coolant needs to be recycled during this process, impurities are present in the coolant, and bacteria, microalgae, and other contaminants grow within the coolant. Since the cooling plate pipes in a liquid cooling system are relatively narrow, these impurities can easily clog the coolant delivery pipes, leading to poor heat exchange in the liquid cooling system.

[0004] The detection of impurities in liquid cooling systems requires manual sampling at regular intervals to analyze and identify the impurities present in the coolant, followed by cleaning. This method cannot remove impurities in a timely and effective manner. Utility Model Content

[0005] To address the problem that liquid cooling systems cannot remove impurities in a timely and efficient manner, this application provides an automatic detection and cleaning liquid cooling system for data centers.

[0006] This application provides an automatic detection and cleaning liquid cooling system for data centers, employing the following technical solution:

[0007] An automated cleaning liquid cooling system for data centers includes:

[0008] Circulating coolant storage tank;

[0009] A return pipe is connected to the bottom of the circulating coolant storage tank;

[0010] The first filter screen is installed at the bottom of the circulating coolant storage tank, forming an accumulation area with the bottom of the circulating coolant storage tank;

[0011] A signal transmitter, installed in the stacking area, uses optical signal transmission;

[0012] A solenoid valve is installed in the accumulation area and electrically connected to the signal transmitter;

[0013] The suction module is installed in the accumulation area and is electrically connected to the solenoid valve, and its operation is controlled by the solenoid valve.

[0014] An aeration pipe is installed above the first filter screen;

[0015] A photocatalytic filter is installed on the aeration pipe, forming a detection area with the top of the circulating coolant storage tank;

[0016] A light source is installed on top of the circulating coolant storage tank;

[0017] The detector is installed outside the circulating coolant storage tank, and the detector probe extends into the detection area;

[0018] A feeding pipe is installed outside the circulating coolant storage tank, and the detector controls the opening of the feeding port of the feeding pipe.

[0019] By adopting the above technical solution, coolant flows in from the bottom of the circulating coolant storage tank. After being filtered by the first filter, large particles of impurities such as dust and a small amount of algae and microorganisms in the coolant accumulate at the bottom of the circulating coolant storage tank. When the impurities accumulate to a specified thickness, the signal transmitter cannot transmit a signal, the solenoid valve electrically connected to the signal transmitter opens, and the suction module works to extract the impurities accumulated at the bottom of the tank from the tank body, achieving solid-liquid separation outside the liquid cooling system without affecting the continuous operation of the liquid cooling system. Gas is introduced into the aeration pipe. Under the action of the gas, algae float and come into contact with the photocatalytic filter. The main material of the photocatalytic filter is titanium dioxide, and the light source is generally an ultraviolet lamp. Under the irradiation of the ultraviolet lamp, titanium dioxide photocatalytically degrades the algae; at the same time, bacteria in the coolant are partially inactivated under the irradiation of strong ultraviolet light. The detector monitors the coolant after photocatalytic treatment in real time and records the concentration of microorganisms in the coolant. When the detector detects that the concentration of microorganisms exceeds the predetermined concentration, the feeding pipe opens, and chemical treatment agents are added according to the detected concentration. Liquid cooling systems can remove impurities in real time without affecting system operation.

[0020] Furthermore, the suction module includes a suction pipe, a suction pump, a treatment tank, and a circulation pipe. The suction port of the suction pipe is located at the bottom of the circulating coolant storage tank. The suction pump is connected to the outlet of the suction pipe and the treatment tank. A second filter screen is installed in the treatment tank. The circulation pipe is located at the top of the treatment tank and is connected to the bottom side wall of the circulating coolant storage tank.

[0021] By adopting the above technical solution, the suction pump provides power, impurities are sucked into the suction pipe and collected in the treatment tank. After being screened again by the second filter, the impurities are separated from the coolant and can be returned to the coolant storage tank, reducing coolant loss.

[0022] Furthermore, there are multiple aeration pipes, which are arranged horizontally and evenly.

[0023] By adopting the above technical solution, multiple aeration pipes can ensure that the coolant, photocatalytic filter, and the added reagents come into full contact.

[0024] Furthermore, the air holes of the aeration pipes on both sides face the inner wall of the circulating coolant storage tank.

[0025] By adopting the above technical solution, the aeration pipe can flush the inner wall of the circulating coolant storage tank while blowing gas, thus preventing the adhesion of microorganisms, bacteria and other substances.

[0026] Furthermore, the signal transmitter is located at 1 / 2 of the height of the stacking area.

[0027] By adopting the above technical solution, the installation height of the signal transmitter is controlled within this range, and dust particles can be transferred to the outside of the circulating coolant storage tank by the suction module in a timely manner, so as to avoid the accumulation of dust particles and affect the normal operation of the coolant system.

[0028] Furthermore, the photocatalytic filter is detachably connected to the inner wall of the circulating coolant storage tank.

[0029] By adopting the above technical solution, the photocatalytic filter can be fixed by magnetic attraction, suppository or other means, and the photocatalytic filter can be replaced regularly.

[0030] Furthermore, the mesh size of the first filter is ≤50μm.

[0031] By adopting the above technical solution, the size of the first filter screen is close to that of large dust particles, and the interception rate is high, which can significantly reduce the concentration of dust particles in the coolant.

[0032] Furthermore, the mesh size of the photocatalytic filter is 1–10 μm.

[0033] By adopting the above technical solution, the mesh size of the photocatalytic filter is controlled. The mesh size of the photocatalytic filter is close to that of algae, which can trap algae and improve the return speed of the coolant after catalytic treatment.

[0034] Furthermore, a detection branch pipe is installed on the inner wall of the circulating coolant storage tank. The detection branch pipe is located in the detection area, and the probe of the detector extends into the detection branch pipe to contact the coolant.

[0035] By adopting the above technical solution, the probe of the detector is fixed by the detection branch pipe, which avoids the probe hitting the inner wall of the circulating coolant storage tank and causing damage to the probe. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of an automatic detection and cleaning liquid cooling system for a data center disclosed in Example 1.

[0037] Figure label:

[0038] 1. Circulating coolant storage tank; 11. Stacking area; 12. Detection area; 13. Light source; 14. Detection branch pipe; 15. Feeding pipe; 2. Return pipe; 3. First filter screen; 4. Signal transmitter; 5. Solenoid valve; 6. Suction module; 61. Suction pipe; 62. Suction pump; 63. Processing tank; 64. Second filter screen; 65. Circulation pipe; 7. Aeration pipe; 8. Photocatalytic filter screen; 9. Detector. Detailed Implementation

[0039] Figure 1 This is a schematic diagram of an automatically inspected and cleaned liquid cooling system for a data center disclosed in Example 1. See also... Figure 1 An automatic detection and cleaning liquid cooling system for data centers includes a circulating coolant storage tank 1. The bottom of the circulating coolant storage tank 1 is connected to a return pipe 2. The return pipe 2 allows the coolant used for heat exchange to re-enter the circulating coolant storage tank 1. The coolant undergoes filtration, photocatalytic degradation, and chemical disinfection, and can be recycled to ensure the heat exchange quality of the liquid cooling system.

[0040] See Figure 1 A first filter 3 is detachably connected to the bottom of the circulating coolant storage tank 1. The mesh size of the first filter 3 is set below 50μm. Within this size range, it can intercept large particulate impurities such as dust particles and algae microorganisms in the coolant. The first filter 3 and the bottom of the circulating coolant storage tank 1 form an accumulation zone 11, where large particulate impurities settle and deposit at the bottom of the accumulation zone 11. At the same time, since the first filter 3 is detachable, it can be replaced periodically.

[0041] See Figure 1 A signal transmitter 4 is installed at half the height of the accumulation zone 11. The signal transmitter 4 includes an optical signal transmitting component and an optical signal receiving component. When impurities accumulate to half the height of the accumulation zone 11, the light emitted by the optical signal transmitting component is blocked by the impurities, and the optical signal received by the optical signal receiving component is weakened or even disappears. A solenoid valve 5 and a suction module 6 are installed at the bottom of the accumulation zone 11. The signal transmitter 4 is electrically connected to the solenoid valve 5. When the intensity of the optical signal received by the optical signal receiving component weakens to a certain level, the solenoid valve 5 opens.

[0042] See Figure 1The suction module 6 includes a suction pipe 61, a suction pump 62, a treatment tank 63, and a circulation pipe 65. The suction port of the suction pipe 61 is located at the bottom of the circulating coolant storage tank 1. The suction port of the suction pipe 61 is connected to the bottom of the circulating coolant storage tank 1 via a solenoid valve 5. When the solenoid valve 5 is opened, the suction pump 62 operates, and coolant containing a large number of impurities enters the treatment tank 63. A second filter screen 64 is installed in the treatment tank 63, and large particles of impurities are filtered through the second filter screen 64, separating the impurities from the circulating coolant storage tank 1. The outlet of the circulation pipe 65 is connected to the circulating coolant storage tank 1. The separated and treated coolant re-enters the circulating coolant storage tank 1 through the circulation pipe 65.

[0043] See Figure 1 An aeration pipe 7 is installed above the first filter 3. Several aeration pipes 7 are horizontally arranged, and gas is introduced into the aeration pipes 7, causing the coolant to rise. Algae and microorganisms in the coolant easily float to the surface. The air holes of the two outermost aeration pipes 7 face the inside of the coolant storage tank, and the gas can flush the inner wall of the circulating coolant storage tank 1, preventing the adhesion of microorganisms, bacteria, and other substances. A photocatalytic filter 8 is detachably connected above the aeration pipes 7. The main material of the photocatalytic filter 8 is titanium dioxide, and the mesh size of the photocatalytic filter 8 is ≤10μm. In this embodiment, the mesh diameter of the photocatalytic filter 8 is 1~10μm. The photocatalytic filter 8 traps algae. A light source 13 is installed on the top of the circulating coolant storage tank 1. The light source 13 can be an ultraviolet lamp, a fluorescent lamp, etc. In this embodiment, an ultraviolet lamp is used. When the ultraviolet light shines on the photocatalytic filter 8, the algae are degraded into small molecules by the action of titanium dioxide. Meanwhile, since the side wall of the circulating coolant storage tank 1 is opaque, the irradiation of the light source 13 poses almost no harm to the human body.

[0044] See Figure 1 A detection zone 12 is formed between the photocatalytic filter 8 and the top of the circulating coolant storage tank 1. A detection branch pipe 14 is installed in the detection zone 12. Coolant enters into the detection branch pipe 14. A detector 9 is installed on the top of the circulating coolant storage tank 1. The detection probe of the detector 9 extends into the detection branch pipe 14. The detection branch pipe 14 fixes the detection probe to prevent the detection probe from drifting in the circulating coolant storage tank 1 due to the water flow disturbance generated by the aeration pipe 7, which would damage the detector 9.

[0045] See Figure 1The circulating coolant storage tank 1 has a feeding pipe 15 at its top, which contains disinfectant. A detector 9 is electrically connected to the electrically controlled valve of the feeding pipe 15. When the detector 9 detects that the microbial concentration in the coolant reaches a certain level, the electrically controlled valve opens to a predetermined degree, releasing the corresponding amount of disinfectant to control the growth of microorganisms in the coolant and prevent them from affecting the heat exchange capacity of the coolant. The detector 9 can automatically detect the coolant without manual sampling. A reflux port is located at the top of the circulating coolant storage tank 1. The coolant, after undergoing multiple processes including filtration, photodegradation, and chemical disinfection, flows back into the heat exchanger through the reflux port, achieving efficient cooling.

[0046] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.

[0047] Furthermore, the above-described embodiments merely illustrate several implementation methods of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An automated detection and cleaning liquid cooling system for data centers, characterized in that, include: Circulating coolant storage tank (1); The return pipe (2) is connected to the bottom of the circulating coolant storage tank (1); The first filter screen (3) is installed at the bottom of the circulating coolant storage tank (1) and forms an accumulation area (11) with the bottom of the circulating coolant storage tank (1); A signal transmitter (4) is installed in the stacking area (11) and uses optical signal transmission; A solenoid valve (5) is installed in the stacking area (11) and electrically connected to the signal transmitter (4); The suction module (6) is installed in the stacking area (11) and electrically connected to the solenoid valve (5), and its operation is controlled by the solenoid valve (5). An aeration pipe (7) is installed above the first filter screen (3); A photocatalytic filter (8) is installed on the aeration pipe (7) and forms a detection area (12) with the top of the circulating coolant storage tank (1); A light source (13) is installed on top of the circulating coolant storage tank (1); The detector (9) is installed outside the circulating coolant storage tank (1), and the detection probe of the detector (9) extends into the detection area (12); The feeding pipe (15) is installed outside the circulating coolant storage tank (1), and the detector (9) controls the opening of the feeding port of the feeding pipe (15).

2. The automatic detection and cleaning liquid cooling system for data centers as described in claim 1, characterized in that: The suction module (6) includes a suction pipe (61), a suction pump (62), a treatment tank (63), and a circulation pipe (65). The suction port of the suction pipe (61) is located at the bottom of the circulating coolant storage tank (1). The suction pump (62) is connected to the outlet of the suction pipe (61) and the treatment tank (63). A second filter screen (64) is installed in the treatment tank (63). The circulation pipe (65) is located at the top of the treatment tank (63) and is connected to the bottom side wall of the circulating coolant storage tank (1).

3. The automatic detection and cleaning liquid cooling system for data centers as described in claim 1, characterized in that: The aeration pipe (7) is provided in multiple ways, and the multiple aeration pipes (7) are arranged horizontally and evenly.

4. The automatic detection and cleaning liquid cooling system for data centers as described in claim 3, characterized in that: The air holes of the aeration pipes (7) on both sides face the inner wall of the circulating coolant storage tank (1).

5. The automatic detection and cleaning liquid cooling system for data centers as described in claim 1, characterized in that: The signal transmitter (4) is located at 1 / 2 of the height of the stacking area (11).

6. The automatic detection and cleaning liquid cooling system for data centers as described in claim 1, characterized in that: The photocatalytic filter (8) is detachably connected to the inner wall of the circulating coolant storage tank (1).

7. The automatic detection and cleaning liquid cooling system for data centers as described in claim 1, characterized in that: The mesh size of the first filter (3) is ≤50μm.

8. The automatic detection and cleaning liquid cooling system for data centers as described in claim 1, characterized in that: The mesh size of the photocatalytic filter (8) is 1 to 10 μm.

9. The automatic detection and cleaning liquid cooling system for data centers as described in claim 8, characterized in that: A detection branch pipe (14) is installed on the inner wall of the circulating coolant storage tank (1). The detection branch pipe (14) is located in the detection area (12). The probe of the detector (9) extends into the detection branch pipe (14) and contacts the coolant.

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