Active pressure relief device of vertical liquid separation unit for high-density liquid cooling cabinet

Abstract

The utility model discloses a vertical liquid separation unit active pressure relief device for a high-density liquid cooling cabinet, and belongs to the field of cooling liquid pressure management of the liquid cooling cabinet, the vertical liquid separation unit active pressure relief device comprises an electric valve and an exhaust valve which are arranged on a pipeline, the electric valve is installed at the bottom of the high-density liquid cooling cabinet, and the exhaust valve is installed at the bottom of the high-density liquid cooling cabinet. The mounting position of the exhaust valve is located at the top of the high-density liquid cooling cabinet; the electric valve is connected with a moving ring system of the high-density liquid cooling cabinet and can be controlled by the moving ring system to be opened for a period of time; an exhaust port of the exhaust valve is provided with an air guide pipe, and an outlet of the air guide pipe is arranged at the bottom of the high-density liquid cooling cabinet. According to the utility model, through the linkage arrangement of the moving ring system and the electric valve, the automatic pressure relief operation is realized when the pressure in the Manifold pipeline is too large.

Description

Technical Field

[0001] The present invention relates to the field of coolant pressure management for liquid-cooled cabinets, and particularly to an active pressure relief device for a vertical liquid distribution unit in a high-density liquid-cooled cabinet. Background Art

[0002] In a high-density liquid-cooled cabinet, several exhaust valves are usually deployed at the top of the vertical liquid distribution unit of the Manifold, and several drain valves are deployed at the bottom of the vertical liquid distribution unit. When the system administrator finds that the pressure inside the Manifold pipeline is too high, the exhaust / drain pressure relief operation can be carried out through the exhaust valves and drain valves. In the traditional pressure relief scheme, the above operations are all manually monitored and require maintenance personnel to perform manual operations.

[0003] In a conventional high-density liquid-cooled cabinet, several exhaust valves are usually deployed at the top of the vertical liquid distribution unit of the Manifold, and several manual drain valves are deployed at the bottom of the vertical liquid distribution unit. When the system administrator finds that the pressure inside the Manifold pipeline is too high, the drain valve of the vertical liquid distribution unit can be manually opened to complete the pressure relief operation for the pipeline system, as specifically Figure 1 shown.

[0004] The disadvantages of the above pressure relief scheme are that the reaction time of the entire pressure relief operation is relatively long. In the case where the system administrator fails to open the drain valve in time, it is possible that due to the excessive water pressure in the pipeline, serious damage to the Manifold pipeline system or the server cold plate may occur. In addition, due to the different operation experiences of different operation and maintenance personnel, various operation and maintenance risks may also occur during the pressure relief operation due to improper operation.

[0005] The information disclosed in this background art section is only intended to enhance the overall understanding of the present utility model and should not be regarded as an admission or any form of suggestion that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Invention

[0006] To solve the problems of the prior art, an embodiment of the present invention provides an active pressure relief device for a vertical liquid distribution unit in a high-density liquid-cooled cabinet, which can solve the problem of automatic pressure relief protection of the vertical liquid distribution unit in a high-density liquid-cooled cabinet when the pressure inside the pipeline is too high. Through the linkage setting of the moving ring system and the electric valve, the automatic pressure relief operation is realized when the pressure inside the Manifold pipeline is too high.

[0007] The technical solution is as follows:

[0008] An active pressure relief device for a vertical liquid distribution unit of a high-density liquid-cooled cabinet, which is arranged on the pipeline system of the liquid-cooling circuit of the high-density liquid-cooled cabinet. The active pressure relief device for the vertical liquid distribution unit of the high-density liquid-cooled cabinet includes: an electric valve and an exhaust valve arranged on the pipeline. The installation position of the electric valve is at the bottom of the high-density liquid-cooled cabinet, and the installation position of the exhaust valve is at the top of the high-density liquid-cooled cabinet; the electric valve is connected to the moving ring system of the high-density liquid-cooled cabinet and can be controlled by the moving ring system to open for a period of time; a gas guide pipe is installed at the exhaust port of the exhaust valve, and the outlet of the gas guide pipe is arranged at the bottom of the high-density liquid-cooled cabinet.

[0009] Further, the exhaust valve is an automatic exhaust valve, and the number is two.

[0010] Further, the exhaust valve is arranged at the top of the horizontal liquid distribution unit on the uppermost layer of the pipeline system of the high-density liquid-cooled cabinet and the vertical return water pipeline on the right side.

[0011] Further, the gas guide pipe is a hose made of polyurethane material, and the hose is fixed by cable ties.

[0012] Further, a tapered pipe joint is connected to the exhaust port of the exhaust valve, and the tapered port of the tapered pipe joint is connected to the gas guide pipe.

[0013] Further, the exhaust valve is connected to the tapered pipe joint by means of a screw or a buckle.

[0014] Further, an O-ring seal is arranged between the exhaust valve and the tapered pipe joint.

[0015] Further, the electric valve is controlled by the moving ring system to open for 1 second, 2 seconds, 3 seconds, 4 seconds, 5 seconds, 6 seconds, 7 seconds, 8 seconds, 9 seconds or 10 seconds.

[0016] Further, the moving ring system includes a temperature sensor. When the temperature sensor detects a temperature higher than a preset temperature, the moving ring system controls the electric valve to open.

[0017] Further, a filtering device is arranged at the outlet of the gas guide pipe for filtering impurities in the discharged gas.

[0018] The beneficial effects brought by the technical solution provided by the embodiment of the present invention are: by changing the manual drain valve deployed at the bottom of the vertical liquid distribution unit to an electric valve controlled by the moving ring system, through the linkage setting of the moving ring system and the electric valve, an automatic pressure relief operation is realized when the pressure inside the Manifold pipeline is too high; in addition, an active drainage device is arranged on the exhaust valve, so that when the exhaust valve fails accidentally and leaks liquid, the coolant can be timely and safely diverted to the liquid storage tank below the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 is a schematic diagram of the pressure relief solution of a high-density liquid-cooled cabinet in the prior art;

[0021] Figure 2 is a top view of an active pressure relief device for a vertical liquid separation unit of a high-density liquid-cooled cabinet provided by an embodiment of the present invention;

[0022] Figure 3 is a control logic timing diagram of an active pressure relief device for a vertical liquid separation unit of a high-density liquid-cooled cabinet provided by an embodiment of the present invention;

[0023] Figure 4 is a schematic diagram of an exhaust valve of an active pressure relief device for a vertical liquid separation unit of a high-density liquid-cooled cabinet provided by an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will describe in detail the specific embodiments of the present utility model in conjunction with the drawings. It should be understood that the protection scope of the present utility model is not limited by the specific embodiments.

[0025] Unless otherwise clearly stated, in the whole specification and claims, the term "comprising" or its variations such as "including" or "having" etc. will be understood to include the stated elements or components, without excluding other elements or other components.

[0026] As Figure 2 shown, an active pressure relief device for a vertical liquid separation unit of a high-density liquid-cooled cabinet according to an embodiment of the present utility model is arranged on the pipeline system of the liquid cooling circuit of the high-density liquid-cooled cabinet, and the water pressure in the pipeline system is monitored in real time. When the pressure in the pipeline system is too high, the pipeline system is pressure-relieved.

[0027] The active pressure relief device for a vertical liquid separation unit of a high-density liquid-cooled cabinet of the present utility model includes an electric valve 3 and an exhaust valve 2 arranged on pipeline 1. Among them, the installation position of the electric valve 3 is at the bottom of the high-density liquid-cooled cabinet, and the installation position of the exhaust valve 2 is at the top of the high-density liquid-cooled cabinet.

[0028] The electric valve 3 is connected to the moving ring system of the high-density liquid cooling cabinet. The full name of the moving ring system is the power environment monitoring system, which can, according to the equipment characteristics and working environment of the communication machine room, realize functions such as "remote measurement, remote signaling, remote control, and remote adjustment" for intelligent and non-intelligent devices such as communication power supplies, battery packs, UPSs, generators, air conditioners, etc. in the communication machine room, as well as environmental quantities such as temperature and humidity, smoke, ground water, and access control.

[0029] As Figure 3 shown, the pressure gauge in the moving ring system can detect the pressure in pipeline 1. When the pressure exceeds the set threshold, an instruction is sent to control the electric valve 3 to open for a period of time. The opening time can be determined according to the on-site situation and can be set to 1 second, 2 seconds, 3 seconds, 4 seconds, 5 seconds, 6 seconds, 7 seconds, 8 seconds, 9 seconds, or 10 seconds each time. Preferably, it is 2 seconds. After that, the moving ring system will control the electric valve 3 to close automatically. Thereafter, the pressure in pipeline 1 will be detected again in the moving ring system. If the detected pressure still exceeds the threshold, the moving ring system will repeat the above operation until the pressure drops below the threshold.

[0030] The present utility model adopts the method of opening the electric valve for a period of time each time for pressure relief, which can avoid the problem that the lack of coolant caused by too fast pressure relief process affects the cooling effect.

[0031] The exhaust valve 2 is an automatic exhaust valve and the number is two. It is specifically arranged at the top of the horizontal liquid distribution unit at the top layer of the pipeline system of the high-density liquid cooling cabinet and the top of the vertical return water pipeline on the right side, so as to ensure that the gas in the pipeline at each position in the pipeline can be discharged in time.

[0032] Since the exhaust valve 2 is located above the high-density liquid cooling cabinet, in order to prevent the coolant in the pipeline from leaking into the interior of the server below when the exhaust valve fails accidentally, the present utility model is provided with an active drainage device on the exhaust valve, which can timely divert the coolant to the liquid storage tank below the cabinet to ensure the safety of the servers in the cabinet.

[0033] Specifically, as Figure 4 shown, a hose 6 is installed at the exhaust port of the exhaust valve 2, and the outlet of the hose 6 is arranged at the bottom of the high-density liquid cooling cabinet, used to discharge the steam discharged by the exhaust valve 2 to the liquid storage tank at the bottom of the high-density liquid cooling cabinet. When the exhaust valve leaks liquid, it can timely and safely divert the coolant to below the cabinet. The hose 6 is preferably made of PU material (Polyurethane, polyurethane material), and the hose can be rolled up and fixed by cable ties. The length of the hose 6 can be determined according to the on-site situation, or can be set to a length of 4m and the excess length part can be rolled up.

[0034] The exhaust port of the exhaust valve 2 is connected to a tapered pipe joint 5, and its tapered opening is used to connect the hose 6. The exhaust valve 2 can be connected to the tapered pipe joint 5 by means of screws or snap fasteners. An O-ring seal 4 is provided between the exhaust valve 2 and the tapered pipe joint 5 to seal the connection between the exhaust valve 2 and the tapered pipe joint 5.

[0035] The exhaust valve 2 can timely discharge the gas in the pipeline cavity outside the cavity, and when the exhaust valve fails accidentally and leaks liquid, it can timely and safely divert the coolant to the liquid storage tank below the cabinet.

[0036] More specifically, in order to realize the linkage setting between the dynamic ring system and the electric valve and realize the automatic pressure relief operation when the pressure inside the Manifold pipeline is too high, it can be realized through the following solutions.

[0037] 1. Pressure sensor linkage solution

[0038] The dynamic ring system is set with a pressure sensor: A pressure sensor is installed in the Manifold pipeline to monitor the pressure in the pipeline in real time.

[0039] Linkage trigger condition: When the pressure sensor detects that the pressure in the pipeline exceeds the preset value, the pressure sensor sends a signal to the dynamic ring system.

[0040] Dynamic ring system response: After the dynamic ring system receives the signal of too high pressure, it controls the electric valve to open for pressure relief operation.

[0041] Automatic closing: After the pressure returns to normal, the dynamic ring system controls the electric valve to close and ends the pressure relief operation.

[0042] 2. Flow sensor linkage

[0043] The dynamic ring system is set with a flow sensor: A flow sensor is installed in the Manifold pipeline to monitor the change of liquid flow.

[0044] Linkage trigger condition: When the flow sensor detects abnormal flow (such as a significant decrease or increase), it sends a signal to the dynamic ring system.

[0045] Dynamic ring system response: The dynamic ring system judges that the abnormal flow may cause too high pressure, controls the electric valve to open, and performs pressure relief operation.

[0046] Automatic closing: After the flow returns to normal, the dynamic ring system controls the electric valve to close and ends the pressure relief operation.

[0047] 3. Temperature sensor linkage

[0048] The dynamic ring system is set with a temperature sensor: A temperature sensor is installed in the Manifold pipeline to monitor the liquid temperature.

[0049] Linkage trigger condition: When the temperature sensor detects that the temperature rises to the preset warning value, it sends a signal to the dynamic loop system (the increase in temperature may cause an increase in pressure).

[0050] Response of the dynamic loop system: The dynamic loop system determines that the pressure may be too high due to the increase in temperature, and controls the electric valve to open for pressure relief operation.

[0051] Automatic shutdown: After the temperature returns to normal, the dynamic loop system controls the electric valve to close and ends the pressure relief operation.

[0052] 4. Comprehensive sensor linkage

[0053] The dynamic loop system is equipped with multiple sensors: Pressure, flow, and temperature sensors are installed in the Manifold pipeline for multi-faceted monitoring.

[0054] Linkage trigger condition: When any sensor detects an abnormality (pressure, flow, temperature), it sends a signal to the dynamic loop system.

[0055] Comprehensive judgment of the dynamic loop system: The dynamic loop system comprehensively judges whether pressure relief operation is required based on the multi-sensor data received.

[0056] Response of the dynamic loop system: When it is determined that pressure relief is required, the dynamic loop system controls the electric valve to open for pressure relief operation.

[0057] Automatic shutdown: After the data of each sensor returns to normal, the dynamic loop system controls the electric valve to close and ends the pressure relief operation.

[0058] 5. Timing and event-driven linkage

[0059] The dynamic loop system sets a timer: A timer is set in the system to periodically check the pipeline pressure.

[0060] Linkage trigger condition: The timer periodically triggers the dynamic loop system to perform pressure checks, or triggers checks according to events (such as system startup, load change).

[0061] Response of the dynamic loop system: When the dynamic loop system detects that the pressure exceeds the preset value, it controls the electric valve to open for pressure relief operation.

[0062] Automatic shutdown: After the pressure returns to normal, the dynamic loop system controls the electric valve to close and ends the pressure relief operation.

[0063] The above-mentioned solutions, combined with different sensors and control logics, can achieve effective linkage between the dynamic loop system and the electric valve, ensuring automatic pressure relief operation when the internal pressure of the Manifold pipeline is too high.

[0064] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An active pressure relief device for a vertical liquid separation unit of a high-density liquid cooling cabinet, arranged on a pipeline system of a liquid cooling circuit of the high-density liquid cooling cabinet, characterized in that: The active pressure relief device of the vertical liquid separation unit for the high-density liquid cooling cabinet includes: an electric valve and an exhaust valve arranged on the pipeline, the installation position of the electric valve is located at the bottom of the high-density liquid cooling cabinet, and the installation position of the exhaust valve is located at the top of the high-density liquid cooling cabinet; the electric valve is connected to the dynamic ring system of the high-density liquid cooling cabinet, and can be controlled by the dynamic ring system to open for a period of time; an air duct is installed at the exhaust port of the exhaust valve, and the outlet of the air duct is arranged at the bottom of the high-density liquid cooling cabinet.

2. The active pressure relief device for a vertical liquid separation unit for a high-density liquid cooling cabinet according to claim 1, characterized in that: The exhaust valves are automatic exhaust valves, and there are two of them.

3. The vertical liquid separation unit active pressure relief device for a high-density liquid cooling cabinet according to claim 2, characterized in that: The exhaust valve is arranged on the top of the horizontal liquid separation unit on the uppermost layer of the pipeline system of the high-density liquid cooling cabinet and on the top of the vertical water return pipeline on the right side.

4. The active pressure relief device for a vertical liquid separation unit for a high-density liquid cooling cabinet according to claim 1, characterized in that: The air guide tube is a hose made of polyurethane material, and the hose is fixed by a cable tie.

5. The active pressure relief device for a vertical liquid separation unit for a high-density liquid cooling cabinet according to claim 1, characterized in that: The exhaust port of the exhaust valve is connected with a cone pipe joint, and the cone-shaped port of the cone pipe joint is connected with the air guide pipe.

6. The active pressure relief device for a vertical liquid separation unit for a high-density liquid cooling cabinet according to claim 5, characterized in that: The exhaust valve is connected to the cone pipe joint by means of a screw or a snap.

7. The active pressure relief device for a vertical liquid separation unit for a high-density liquid cooling cabinet according to claim 5, characterized in that: An O-type sealing ring is arranged between the exhaust valve and the cone pipe joint.

8. The active pressure relief device for a vertical liquid separation unit for a high-density liquid cooling cabinet according to claim 1, characterized in that: The electric valve is controlled by the dynamic ring system to open for 1 second, 2 seconds, 3 seconds, 4 seconds, 5 seconds, 6 seconds, 7 seconds, 8 seconds, 9 seconds or 10 seconds.

9. The active pressure relief device for a vertical liquid separation unit of a high-density liquid cooling cabinet according to claim 1, characterized in that: The dynamic ring system includes a temperature sensor. When the temperature sensor detects a temperature higher than a preset temperature, the dynamic ring system controls the electric valve to open.

10. The active pressure relief device for a vertical liquid separation unit of a high-density liquid cooling cabinet according to claim 1, characterized in that: A filtering device is provided at the outlet of the air guide pipe for filtering impurities in the discharged gas.

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