Pipeline leakage monitoring and fault isolation system

Abstract

The invention relates to the technical field of electronic equipment water cooling pipeline control, in particular to a pipeline leakage monitoring and fault isolation system. Comprising a water cooling cabinet, a refrigerant water pipeline, a pipeline leakage detector, a remote control valve and a pipeline control unit. The leakage detector is arranged on the refrigerant water pipeline, so that leakage faults can be quickly detected and positioned; through the arrangement of the annular pipeline, autonomous fault isolation and self-reconfiguration of the pipeline can be achieved in cooperation with the remote control valve, it is guaranteed that water supply of all electronic equipment is not affected when a single leakage fault occurs, water supply of refrigerant water pipelines of part of important electronic equipment can be guaranteed when two or more faults occur, and then the reliability of the refrigerant water pipelines is remarkably improved; and long-time stable and reliable operation of the electronic equipment is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of water cooling pipeline control for electronic equipment, and in particular to a pipeline leakage monitoring and fault isolation system. Background Art

[0002] With the development of electronic technology, the heat density of electronic equipment continues to increase, and water cooling is widely used in the heat dissipation and cooling of electronic equipment. For places with high heat density such as data centers, a refrigerant water cooling system is usually configured to transport refrigerant water to each computer cabinet through pipes to take away the heat generated by the cabinet. The refrigerant water pipeline system is the basis for the normal operation of electronic equipment, and it is necessary to quickly discover and deal with pipeline failures. Pipeline rupture and fluid leakage are common failures of the pipeline system, and usually personnel are required to locate and deal with such failures.

[0003] In order to respond to the demand for less-manned or even unmanned data centers, it is necessary to automate the refrigerant water pipelines of the electronic equipment cooling system to achieve autonomous detection, location, and handling of pipeline faults. If the refrigerant water pipeline system has autonomous leak detection, fault isolation, and self-reconstruction capabilities, it can greatly improve the reliability of the pipeline and ensure long-term, reliable operation of the electronic equipment. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a pipeline leakage monitoring and fault isolation system, which can realize autonomous detection, positioning and disposal of pipeline leakage faults, and ensure long-term stable and reliable operation of the refrigerant water pipeline system and electronic equipment.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A pipeline leakage monitoring and fault isolation system includes a water-cooling cabinet, a refrigerant water pipeline, a pipeline leakage detector, electronic equipment, a remote control valve and a pipeline control unit;

[0007] The water-cooling cabinet is provided with two sets of water-cooling units, each of which is provided with a water supply port and a water return port; the refrigerant water pipeline includes a water supply loop and a water return loop, the water supply loop is connected to the two water supply ports of the water-cooling cabinet, and the water return loop is connected to the two water return ports of the water-cooling cabinet;

[0008] The water supply loop is provided with a plurality of water inlet branches respectively connected to the refrigerant water inlet of each electronic device, and the return water loop is provided with a plurality of water outlet branches respectively connected to the refrigerant water outlet of each electronic device.

[0009] Furthermore, the water cooling unit adopts a compression refrigeration method to prepare refrigerant water, including a compression circulation pipeline, a compressor, a condenser, a throttle valve, an evaporator, a refrigerant water pump, a refrigerant water filter, a degasser and an expansion tank.

[0010] Furthermore, the refrigerant in the compression circulation pipeline absorbs cold air from the external environment through the condenser, and cools the refrigerant water flowing into the return water port through the evaporator, and then the prepared refrigerant water is sent into the refrigerant water pipeline from the water supply port, and then sent to various electronic equipment through the refrigerant water pipeline.

[0011] Furthermore, the pipeline leakage detector is provided with a plurality of induction cables, and the plurality of induction cables are respectively laid along the water supply loop, the water return loop, the plurality of water inlet branches and the plurality of water outlet branches.

[0012] Furthermore, when any pipeline leaks, the leaked material will penetrate into the sensing cable, causing the parameters of the sensing cable to change. The parameter changes of the sensing cable are read by the pipeline leakage detector to detect and locate the leakage point.

[0013] Furthermore, the sensing cable is specifically an oil-soluble cable, a permeable cable or a distributed sensor cable.

[0014] Furthermore, the remote control valves are all electric remote control valves, which are used to receive control instructions sent by the pipeline control unit to perform corresponding actions;

[0015] The specific distribution of the remote control valve includes:

[0016] The two water supply ports and the two water return ports of the water cooling cabinet are respectively provided with an electric stop valve;

[0017] An electric T-type three-way valve is respectively provided at the connection between the water inlet branch of each electronic device and the water supply loop;

[0018] An electric T-type three-way valve is respectively arranged at the connection between the water outlet branch of each electronic equipment and the water return loop.

[0019] Furthermore, the pipeline control unit receives the monitoring signal of the pipeline leakage detector in real time, and generates a corresponding valve control strategy according to the location of the pipeline leakage to control the action of the remote control valve, thereby realizing pipeline fault isolation and pipeline self-reconstruction.

[0020] A control method for the pipeline leakage monitoring and fault isolation system as described above specifically comprises:

[0021] In normal operation mode, the refrigerant water is delivered to each electronic device through the water supply loop and the corresponding water inlet branch. After heat exchange with the electronic device, it enters the return water pipeline through the corresponding water outlet branch, and finally flows back to the water-cooled cabinet for re-cooling and recycling.

[0022] When a pipeline leaks, the induction cable and pipeline leak detectors laid on the pipeline are used to quickly identify the leak and locate the leak point. Based on the location of the leak point, the corresponding pipeline fault isolation and pipeline self-reconstruction control are performed.

[0023] Compared with the prior art, the present invention has the following main advantages:

[0024] The present invention provides a pipeline leakage monitoring and fault isolation system. By arranging a leakage detector on the refrigerant water pipeline, leakage faults can be quickly detected and located. By setting a ring pipeline, autonomous fault isolation and self-reconstruction of the pipeline can be achieved in cooperation with a remote control valve, ensuring that the water supply to all electronic equipment is not affected when a single leakage fault occurs. When two or more faults occur, the water supply to the refrigerant water pipeline of some important electronic equipment can be guaranteed, thereby significantly improving the reliability of the refrigerant water pipeline and ensuring long-term stable and reliable operation of the electronic equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 An overall schematic diagram of a pipeline leakage monitoring and fault isolation system in an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of valve control of the system in normal operating mode in an embodiment of the present invention;

[0027] Figure 3 Schematic diagram of valve control of the system when a refrigerant water pipeline leaks between the electric three-way valves 6 and 9 in an embodiment of the present invention;

[0028] Figure 4 Schematic diagram of valve control of the system when both the refrigerant water pipeline between the electric three-way valves 6 and 9 and the refrigerant water pipeline between the electric three-way valves 14 and 17 leak in the embodiment of the present invention;

[0029] Figure 5 Schematic diagram of valve control of the system when leakage occurs in both the refrigerant water pipeline between the electric three-way valves 6 and 9 and the refrigerant water pipeline between the electric three-way valves 12 and 15 in the embodiment of the present invention. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0031] It should be pointed out that, according to the needs of implementation, the various steps / components described in this application can be split into more steps / components, and two or more steps / components or partial operations of steps / components can be combined into new steps / components to achieve the purpose of the present invention.

[0032] like Figure 1 As shown, the present invention provides a pipeline leakage monitoring and fault isolation system, including a water-cooled cabinet, a refrigerant water pipeline, a pipeline leakage detector, electronic equipment, a remote control valve and a pipeline control unit, wherein the pipeline leakage detector is laid on the refrigerant water pipeline, and the pipeline control unit is integrated on the water-cooled cabinet 1.

[0033] Among them, the pipeline leakage monitoring and fault isolation system specifically includes 4 electronic devices (numbered 5, 8, 13, and 16) and 12 remote control valves, among which 4 electric stop valves (numbered 2, 3, 10, and 11) are arranged at the two water supply ports and two return ports of the water-cooled cabinet 1, and 8 electric T-type three-way valves (numbered 4, 6, 7, 9, 12, 14, 15, and 17) are arranged at the water inlet and outlet of the 4 electronic devices.

[0034] The water-cooling cabinet adopts the compression refrigeration principle to prepare refrigerant water, including a compression circulation pipeline, a compressor, a condenser, a throttle valve, an evaporator, a refrigerant water pump, a refrigerant water filter, a degasser and an expansion tank. The refrigerant in the compression circulation pipeline absorbs cold energy from the external environment through the condenser, cools the refrigerant water through the evaporator, and delivers the prepared refrigerant water to various electronic devices. The water-cooling cabinet has two water supply ports and two water return ports.

[0035] The refrigerant water pipeline adopts a ring pipeline layout, including two loops of water supply and water return, wherein the water supply loop is connected to the two water supply ports of the water cooling cabinet, and the water return loop is connected to the two water return ports of the chiller. Several branches are set on the water supply loop and the water return loop, which are respectively connected to the water inlet and water outlet provided by the electronic equipment, and are respectively called water inlet branches and water outlet branches.

[0036] The pipeline leakage detector is constructed by laying a cable on the refrigerant water pipeline. When the leaked material penetrates into the cable, the parameters of the cable will change, thereby realizing the detection and location of the leak. The cable can be an oil-soluble cable, a permeable cable, a distributed sensor cable, etc.

[0037] The remote control valves are all electric valves and can be controlled by the pipeline control unit. Electric stop valves are respectively arranged at the two water supply ports and the two water return ports of the chiller, and electric T-type three-way valves are respectively arranged at the connection between each electronic equipment water inlet branch and the water supply loop, and the water outlet branch and the water return loop.

[0038] The pipeline control unit can receive the signal from the pipeline leakage detector, determine the treatment strategy according to the location of the pipeline leakage, and control the remote control valve to achieve fault isolation and self-reconstruction of the pipeline.

[0039] like Figure 2 As shown, in the normal operation mode, the electric stop valves 3 and 11 are open, the electric stop valves 2 and 10 are closed, the electric three-way valves 4, 7, 9, 12, 15, and 17 are in the three-way mode, and the electric three-way valves 6 and 14 are in the two-way mode. The refrigerant water enters the four electronic devices through the electric stop valve 2 and the water supply pipeline, enters the return water pipeline after heat exchange with the electronic equipment, and finally returns to the water-cooled cabinet 1 through the electric stop valve 10.

[0040] When a leak occurs in the circulating water pipeline, the pipeline leak detector installed on the refrigerant water pipeline can quickly detect the leak and locate it, and adopt different pipeline fault isolation and self-reconstruction methods according to the leak location. Three typical fault cases are selected to illustrate the process of pipeline fault isolation and self-reconstruction.

[0041] like Figure 3 As shown, when a leak in the refrigerant water pipeline between the electric three-way valves 6 and 9 is detected, the pipeline control unit controls the status of all remote control valves, the electric stop valves 2, 3, 10, and 11 are all open, the electric three-way valves 4, 6, 7, and 9 are in two-way mode, and the electric three-way valves 12, 13, 16, and 17 are in three-way mode. After the pipeline is self-reconstructed, the water-cooled cabinet 1 adopts a two-way water supply method, one refrigerant water is sent to the electronic equipment 5, and the other refrigerant water is sent to the electronic equipment 8, 13, and 16, and the water supply of all electronic equipment is not affected.

[0042] like Figure 4 As shown, when the refrigerant water pipeline between the electric three-way valves 6 and 9 and the refrigerant water pipeline between the electric three-way valves 14 and 17 are monitored to leak, the pipeline control unit controls the status of all remote control valves, the electric stop valves 2, 3, 10, and 11 are all open, the electric three-way valves 6, 9, 14, and 17 are in two-way mode, and the electric three-way valves 4, 7, 12, and 15 are in three-way mode. After the pipeline is reconstructed, the water-cooled cabinet 1 adopts a two-way water supply method, one refrigerant water is sent to electronic equipment 5, 8, and 16, and the other refrigerant water is sent to electronic equipment 13, and the water supply of all electronic equipment is not affected.

[0043] like Figure 5 As shown, when the refrigerant water pipeline between the electric three-way valves 6 and 9 and the refrigerant water pipeline between the electric three-way valves 12 and 15 are monitored to leak, the pipeline control unit controls the status of all remote control valves, the electric stop valves 2, 3, 10, and 11 are all open, and the electric three-way valves 4, 6, 7, 9, 12, 14, 15, and 17 are in three-way mode. After the pipeline is reconstructed, the water-cooled cabinet 1 adopts a two-way water supply method, one refrigerant water is sent to the electronic equipment 5, and the other refrigerant water is sent to the electronic equipment 13, and the water supply of the electronic equipment 8 and 16 is affected.

[0044] Furthermore, all parts of the present application that are not described in detail are the same as the prior art or are implemented using the prior art.

[0045] In summary:

[0046] The present invention provides a pipeline leakage monitoring and fault isolation system. By arranging a leakage detector on the refrigerant water pipeline, leakage faults can be quickly detected and located. By setting a ring pipeline, autonomous fault isolation and self-reconstruction of the pipeline can be achieved in cooperation with a remote control valve, ensuring that the water supply to all electronic equipment is not affected when a single leakage fault occurs. When two or more faults occur, the water supply to the refrigerant water pipeline of some important electronic equipment can be guaranteed, thereby significantly improving the reliability of the refrigerant water pipeline and ensuring long-term stable and reliable operation of the electronic equipment.

[0047] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pipeline leakage monitoring and fault isolation system, characterized in that: It includes water-cooled cabinet, refrigerant water pipeline, pipeline leakage detector, electronic equipment, remote control valve and pipeline control unit; The water-cooling cabinet is provided with two sets of water-cooling units, each of which is provided with a water supply port and a water return port; the refrigerant water pipeline includes a water supply loop and a water return loop, the water supply loop is connected to the two water supply ports of the water-cooling cabinet, and the water return loop is connected to the two water return ports of the water-cooling cabinet; The water supply loop is provided with a plurality of water inlet branches respectively connected to the refrigerant water inlet of each electronic device, and the return water loop is provided with a plurality of water outlet branches respectively connected to the refrigerant water outlet of each electronic device.

2. A pipeline leakage monitoring and fault isolation system according to claim 1, characterized in that: The water cooling unit adopts a compression refrigeration method to prepare refrigerant water, including a compression circulation pipeline, a compressor, a condenser, a throttle valve, an evaporator, a refrigerant water pump, a refrigerant water filter, a degasser and an expansion tank.

3. A pipeline leakage monitoring and fault isolation system according to claim 2, characterized in that: The refrigerant in the compression circulation pipeline absorbs cold air from the external environment through the condenser, and cools the refrigerant water flowing into the return water port through the evaporator, and then the prepared refrigerant water is sent into the refrigerant water pipeline from the water supply port, and then sent to various electronic equipment through the refrigerant water pipeline.

4. A pipeline leakage monitoring and fault isolation system according to claim 3, characterized in that: The pipeline leakage detector is provided with a plurality of induction cables, and the plurality of induction cables are laid respectively along the water supply loop, the water return loop, the plurality of water inlet branches and the plurality of water outlet branches.

5. A pipeline leakage monitoring and fault isolation system according to claim 4, characterized in that: When any pipeline leaks, the leaked material will penetrate into the sensing cable, causing the parameters of the sensing cable to change. The pipeline leakage detector reads the parameter changes of the sensing cable to detect and locate the leakage point.

6. A pipeline leakage monitoring and fault isolation system according to claim 4, characterized in that: The induction cable is specifically an oil-soluble cable, a permeable cable or a distributed sensor cable.

7. A pipeline leakage monitoring and fault isolation system according to claim 3, characterized in that: The remote control valves are all electric remote control valves, which are used to receive control instructions sent by the pipeline control unit to perform corresponding actions; The specific distribution of the remote control valve includes: The two water supply ports and the two water return ports of the water cooling cabinet are respectively provided with an electric stop valve; An electric T-type three-way valve is respectively provided at the connection between the water inlet branch of each electronic device and the water supply loop; An electric T-type three-way valve is respectively arranged at the connection between the water outlet branch of each electronic equipment and the water return loop.

8. A pipeline leakage monitoring and fault isolation system according to claim 7, characterized in that: The pipeline control unit receives the monitoring signal of the pipeline leakage detector in real time, and generates a corresponding valve control strategy according to the location of the pipeline leakage to control the action of the remote control valve to achieve pipeline fault isolation and pipeline self-reconstruction.

9. A control method for a pipeline leakage monitoring and fault isolation system according to any one of claims 1 to 8, characterized in that: include: In normal operation mode, the refrigerant water is delivered to each electronic device through the water supply loop and the corresponding water inlet branch. After heat exchange with the electronic device, it enters the return water pipeline through the corresponding water outlet branch, and finally flows back to the water-cooled cabinet for re-cooling and recycling. When a pipeline leaks, the induction cable and pipeline leak detectors laid on the pipeline are used to quickly identify the leak and locate the leak point. Based on the location of the leak point, the corresponding pipeline fault isolation and pipeline self-reconstruction control are performed.

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