A fully automatic self-cleaning cooling and dispensing unit
Patent Information
- Application Number
- CN202522189934.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-16
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-10-16
AI Technical Summary
[0003]针对现有技术存在的问题，本实用新型提供了一种全自动自净化冷却分配单元，解决了冷却分配单元无法内部处理冷却液电导率、pH值和浊度异常问题，能快速自净化冷却液，提高了冷却分配单元的使用寿命和，实现了冷却分配单元免维护功能
[0007]有益效果，与现有技术相比，本实用新型系统可根据冷却液的浊度、电导率和PH值的参数，通过控制逻辑，完成对冷却液的净化；本实用新型有效减轻了运维人员的工作内容，避免人工更换冷却液可能带来的问题；还可实时监测冷却液的浊度、电导率和PH值，有异常可第一时间处理，避免由于冷却液的浊度、电导率和PH值异常对系统的不良影响。
Smart Images
Figure CN224805302U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of data center liquid cooling technology, specifically relating to a fully automatic self-purifying cooling distribution unit. Background Technology
[0002] During long-term use, the coolant in the cooling distribution unit is prone to abnormalities in conductivity, pH value, and turbidity. The traditional approach involves periodically monitoring these parameters using sensors. If an abnormality is detected, maintenance personnel must manually replace a portion of the coolant by pumping it out. This method presents several problems: Abnormal coolant conductivity, if not replaced promptly, can accelerate electrochemical corrosion of metal components such as pipes, valves, and pumps, potentially causing blockages and reduced heat exchange efficiency. Abnormal coolant pH, if not replaced promptly, can lead to the failure of corrosion inhibitors, acidic or alkaline corrosion of metal components, and acid corrosion of sealing rubber parts. Abnormal coolant turbidity, if not replaced promptly, can cause suspended particles to clog filters and cooling pipes, reducing heat dissipation efficiency. Manually replacing the coolant by pumping it out is inefficient, carries the risk of coolant leakage, and in some cases, can disrupt the normal operation of the system. Summary of the Invention
[0003] To address the problems existing in the prior art, this utility model provides a fully automatic self-purifying cooling distribution unit, which solves the problem that the cooling distribution unit cannot internally handle abnormalities in the conductivity, pH value and turbidity of the coolant. It can quickly self-purify the coolant, improve the service life of the cooling distribution unit and realize the maintenance-free function of the cooling distribution unit.
[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a fully automatic self-purifying cooling distribution unit, comprising a primary side piping system, a secondary side piping system, and a heat exchanger, wherein: The primary side piping system includes an outdoor cooling tower and primary side piping. The primary side piping includes a primary side liquid supply pipe section connected to the cooling tower outlet, a primary side heat exchange pipe section, and a primary side return pipe section connected to the cooling tower inlet. The primary side heat exchange pipe section is located in a heat exchanger and exchanges heat with the secondary side piping system. The secondary side piping system includes a coolant return section, a secondary side heat exchange section, and a coolant inlet section connected in sequence, wherein: The coolant inlet section is equipped with a replenishment assembly, a one-way control valve pump line, and a filter valve assembly. The replenishment assembly includes a replenishment tank connected in parallel with the coolant inlet section. A replenishment pump, a first one-way valve, and a pressure relief valve are installed on the pipeline connecting the replenishment tank to the coolant inlet section. The one-way control valve pump line is a dual-parallel control circuit, with each control circuit equipped with a first butterfly valve, a circulation pump, and a second one-way valve. The filter valve assembly includes a second butterfly valve, a filter, and a third butterfly valve connected in sequence. A fourth butterfly valve is also connected in parallel to the outer ends of the second and third butterfly valves. An expansion tank and a pressure sensor are also installed on the coolant inlet section. The coolant return section is equipped with a turbidity sensor, a conductivity sensor, a pH sensor, a flow sensor, and a purification component. The purification component includes a bypass connected in parallel with the coolant return section. The bypass is equipped with a purification module, and a third one-way valve and an electric valve are respectively provided on both sides of the purification module. The coolant return section and coolant inlet section are connected to the user load to form a refrigeration cycle, and the secondary heat exchange section is located in the heat exchanger to exchange heat with the primary side.
[0005] Preferably, the heat exchanger is a plate heat exchanger.
[0006] Preferably, the replenishment tank is also equipped with a replenishment pump and a liquid level sensor.
[0007] Beneficial effects: Compared with the prior art, the system of this utility model can purify the coolant by controlling the parameters of turbidity, conductivity and pH value of the coolant; the utility model effectively reduces the workload of maintenance personnel and avoids the problems that may be caused by manual replacement of coolant; it can also monitor the turbidity, conductivity and pH value of the coolant in real time, and deal with any abnormalities immediately to avoid adverse effects on the system due to abnormalities in the turbidity, conductivity and pH value of the coolant. Attached Figure Description
[0008] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Wherein: Figure 1 This is a schematic diagram of the structure of the fully automatic self-cleaning cooling distribution unit described in this utility model.
[0009] The components include: cooling tower 1, primary side system piping 2, plate heat exchanger 3, third check valve 4, purification module 5, electric valve 6, turbidity sensor 7, conductivity sensor 8, pH sensor 9, flow sensor 10, secondary side system piping 11, user load 12, replenishment pump 13, first check valve 14, pressure relief valve 15, expansion tank 16, first butterfly valve 17, circulation pump 18, second check valve 19, front pressure sensor 20, second butterfly valve 21, filter 22, fourth butterfly valve 23, third butterfly valve 24, rear pressure sensor 25, replenishment tank 26, replenishment pump 27, and level sensor 28. Detailed Implementation
[0010] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art fall within the scope defined by the appended claims.
[0011] like Figure 1 As shown, the fully automatic self-cleaning cooling distribution unit of this utility model includes a primary side piping system, a secondary side piping system, and a heat exchanger, wherein: The primary side piping system includes an outdoor cooling tower and primary side piping. The primary side piping includes a primary side liquid supply pipe section connected to the cooling tower outlet, a primary side heat exchange pipe section, and a primary side return pipe section connected to the cooling tower inlet. The primary side heat exchange pipe section is located in a heat exchanger and exchanges heat with the secondary side piping system. The secondary side piping system includes a coolant return section, a secondary side heat exchange section, and a coolant inlet section connected in sequence, wherein: The coolant inlet section is equipped with a replenishment assembly, a one-way control valve pump line, and a filter valve assembly. The replenishment assembly includes a replenishment tank connected in parallel with the coolant inlet section. A replenishment pump, a first one-way valve, and a pressure relief valve are installed on the pipeline connecting the replenishment tank to the coolant inlet section. The one-way control valve pump line is a dual-parallel control circuit, with each control circuit equipped with a first butterfly valve, a circulation pump, and a second one-way valve. The filter valve assembly includes a second butterfly valve, a filter, and a third butterfly valve connected in sequence. A fourth butterfly valve is also connected in parallel to the outer ends of the second and third butterfly valves. An expansion tank and a pressure sensor are also installed on the coolant inlet section. The coolant return section is equipped with a turbidity sensor, a conductivity sensor, a pH sensor, a flow sensor, and a purification component. The purification component includes a bypass connected in parallel with the coolant return section. The bypass is equipped with a purification module, and a third one-way valve and an electric valve are respectively provided on both sides of the purification module. The coolant return section and coolant inlet section are connected to the user load to form a refrigeration cycle, and the secondary heat exchange section is located in the heat exchanger to exchange heat with the primary side.
[0012] This invention connects a purification module in parallel to the secondary system pipeline. The purification module uses ion exchange resin to adsorb ions in the coolant, thereby maintaining the low conductivity within the normal range. When the system conductivity sensor detects that the system conductivity exceeds the set range by ≤20%, the electric valve opens to 40%; when the system conductivity sensor detects that the system conductivity exceeds the set range by 20-40%, the electric valve opens to 80%; when the system conductivity sensor detects that the system conductivity exceeds the set range by >40%, the electric valve opens to 100%. The coolant passes through the purification module (5), adsorbing ions in the coolant and reducing the conductivity of the coolant until it reaches the normal range.
[0013] This invention utilizes a coolant replenishment tank to add coolant to the secondary system piping, thereby maintaining the coolant's pH value within a reasonable range. The coolant level in the replenishment tank is measured using a level sensor. A first check valve prevents system coolant from entering the replenishment pump. When the pH sensor detects an abnormal coolant pH value, 20% of the system coolant is discharged through the drain port (the discharge volume is determined by the scale on the collection tank). Simultaneously, the replenishment pump adds coolant to the tank and starts, replenishing the secondary system piping with coolant. When the discharged coolant volume reaches 20% of the system coolant capacity, the pH value is observed. If an abnormality persists, this process is repeated.
[0014] This invention uses a filter to remove suspended particles from the system, thereby maintaining the coolant turbidity within a reasonable range. When the system turbidity sensor detects that the coolant turbidity exceeds the set range by ≤10%, the circulation pump's operating frequency is increased by 5Hz from the existing frequency; when the coolant turbidity exceeds the set range by >10%, the circulation pump's operating frequency is increased by 10Hz from the existing frequency, accelerating the coolant circulation speed and rapidly filtering suspended particles. The system maintains stable system pressure through a pressure relief valve and an expansion tank. When the pressure difference between the pressure sensor and the pressure sensor exceeds 0.5 bar, the filter element needs to be replaced. When replacing the filter element, the second and third butterfly valves must be closed, and the fourth butterfly valve opened, without affecting normal system operation, thus achieving online maintenance of the filter. The coolant passes through the filter, adsorbing suspended particles and reducing its turbidity until it reaches the normal range.
[0015] The cooling tower is connected to the primary system piping, and the user load is connected to the secondary system piping, with heat exchange achieved through a plate heat exchanger.
[0016] To monitor the conductivity, turbidity, and pH of the coolant from the user load to the plate heat exchanger in real time, turbidity, conductivity, and pH sensors are installed on the pipeline from the user load to the plate heat exchanger.
[0017] Within the cooling capacity distribution unit, without affecting the normal operation of the system, the system can purify the coolant by adjusting the opening of the electric valve, the frequency of the circulating pump, and the amount of coolant replenished, based on the degree of abnormality in the coolant's conductivity, turbidity, and pH value.
Claims
1. A fully automatic self-cleaning cooling distribution unit, characterized in that: It includes a primary side piping system, a secondary side piping system, and a heat exchanger, wherein: The primary side piping system includes an outdoor cooling tower and primary side piping. The primary side piping includes a primary side liquid supply pipe section connected to the cooling tower outlet, a primary side heat exchange pipe section, and a primary side return pipe section connected to the cooling tower inlet. The primary side heat exchange pipe section is located in a heat exchanger and exchanges heat with the secondary side piping system. The secondary side piping system includes a coolant return section, a secondary side heat exchange section, and a coolant inlet section connected in sequence, wherein: The coolant inlet section is equipped with a replenishment assembly, a one-way control valve pump line, and a filter valve assembly. The replenishment assembly includes a replenishment tank connected in parallel with the coolant inlet section. A replenishment pump, a first one-way valve, and a pressure relief valve are installed on the pipeline connecting the replenishment tank and the coolant inlet section. The one-way control valve pump line is a dual-parallel control circuit, with each control circuit equipped with a first butterfly valve, a circulation pump, and a second one-way valve. The filter valve assembly includes a second butterfly valve, a filter, and a third butterfly valve connected in sequence. A fourth butterfly valve is also connected in parallel to the outer ends of the second and third butterfly valves. An expansion tank and a pressure sensor are also installed on the coolant inlet section. The coolant return section is equipped with a turbidity sensor, a conductivity sensor, a pH sensor, a flow sensor, and a purification component. The purification component includes a bypass connected in parallel with the coolant return section. The bypass is equipped with a purification module, and a third one-way valve and an electric valve are respectively provided on both sides of the purification module. The coolant return section and coolant inlet section are connected to the user load to form a refrigeration cycle, and the secondary heat exchange section is located in the heat exchanger to exchange heat with the primary side.
2. The fully automatic self-cleaning cooling distribution unit according to claim 1, characterized in that: The heat exchanger is a plate heat exchanger.
3. The fully automatic self-cleaning cooling distribution unit according to claim 1, characterized in that: The replenishment tank is also equipped with a liquid pump and a liquid level sensor.