Heat pipe backboard emergency processing device and control method

Abstract

The invention relates to the technical field of emergency processing, and discloses a heat pipe backboard emergency processing device and a control method, and the heat pipe backboard emergency processing device comprises an integrated cabinet, an emergency energy storage box, a first temperature sensor, a second temperature sensor, a third temperature sensor, a current sensor, a first pressure sensor, a second pressure sensor and the like. A back plate fan is installed on a back plate of the integrated cabinet, and a heat pipe evaporator is installed near the inner wall of the left side of the integrated cabinet. Through signal transmission of the temperature sensor, the pressure sensor and the current sensor, faults of the heat pipe evaporator, the heat pipe condenser and the backboard fan can be automatically detected and handled, and the working state of the emergency power supply can be flexibly adjusted according to the exhaust temperature of the heat pipe and the current of the power supply circuit A in the handling process; and the working state of the electric valve can be regulated and controlled according to the superheat degree of the refrigerant at the outlet of the heat pipe evaporator and the supercooling degree of the refrigerant at the outlet of the heat pipe condenser.

Description

Technical Field

[0001] The present invention relates to the technical field of emergency handling, and particularly to a heat pipe backplane emergency handling device and a control method thereof. Background Technique

[0002] Compared with the traditional precision air conditioning system in the computer room, the heat pipe backplane used in the data center has advantages such as cooling on demand and efficient utilization of natural cold sources, and is a cooling device that promotes energy conservation and carbon reduction in the data center.

[0003] However, the existing heat pipe backplane type data centers generally have the following problems: the chilled water storage tank occupies a large area, causing difficulties in the design of data centers in composite buildings; in an emergency state, the transportation distance of chilled water from the chilled water storage tank to the heat pipe condenser is long, and the supply of chilled water cannot be realized in the first time; in an emergency state, the power supply and distribution of the heat pipe backplane fan rely on multi-point monitoring by a large number of sensors. If some sensors fail, the corresponding cabinet backplane fan will not receive emergency power supply, which will further lead to server downtime accidents in the cabinet. For this reason, a heat pipe backplane emergency handling device and a control method thereof are proposed. Summary of the Invention

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the present invention provides a heat pipe backplane emergency handling device and a control method thereof to solve the problems raised in the above background technique.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the present invention provides the following technical solutions: A heat pipe backplane emergency treatment device, including an integrated cabinet, an emergency energy storage box, a first temperature sensor, a second temperature sensor, a third temperature sensor, a current sensor, a first pressure sensor, a second pressure sensor, etc. A backplane fan is installed on the backplane of the integrated cabinet. A heat pipe evaporator is installed near the left inner wall of the integrated cabinet. The heat pipe evaporator is connected to the heat pipe condenser through an air pipe. A server is installed on the right inner wall of the integrated cabinet. A heat channel is provided between the server and the heat pipe evaporator. A first temperature sensor is arranged outside the backplane fan. A second temperature sensor and a first pressure sensor are arranged at the outlet of the heat pipe evaporator of the integrated cabinet. A third temperature sensor and a second pressure sensor are arranged at the outlet of the heat pipe condenser of the integrated cabinet. An emergency energy storage box is arranged below the outside of the bottom of the integrated cabinet. The inside of the emergency energy storage box includes a refrigerant liquid storage tank, an outlet pipeline, a first electric valve, a second electric valve, a control board A, an emergency power supply, a control board B, a control board C, a power sensor, and a wire. A liquid pipe is arranged outside the outlet pipeline and passes through the emergency energy storage box. The emergency power supply end of the backplane fan is connected to a first discharge line, and the main power supply end of the backplane fan is connected to a power supply line A. The power supply line A is also connected to a current sensor.

[0008] Preferably, the refrigerant liquid storage tank is fixed inside the emergency energy storage box and is connected to the liquid pipe below the outside of the bottom of the integrated cabinet through two outlet pipelines respectively equipped with a first electric valve and a second electric valve.

[0009] Preferably, the power supply ends of the first electric valve and the second electric valve are connected to the emergency power supply through a second discharge line, and the weak electric signal receiving ends of the first electric valve and the second electric valve are connected to the control board A.

[0010] Preferably, on four different interfaces of the emergency power supply, a first discharge line, a second discharge line, a charging line, and a power detection line are respectively connected.

[0011] Preferably, the head and tail ends of the first discharge line are the emergency power supply and the backplane fan respectively. The first discharge line passes through control board B. The head end of the second discharge line is the emergency power supply, and the tail end of the second discharge line is the first electric valve and the second electric valve. The head and tail ends of the charging line are the data center power supply and distribution system and the emergency power supply respectively. The charging line passes through control board C. The head and tail ends of power supply line A are the data center power supply and distribution system and the backplane fan respectively. Power supply line A passes through a current sensor. The emergency power supply provides power to the first electric valve and the second electric valve in real time through the second discharge line to ensure that control board A can adjust the working states of the first electric valve and the second electric valve in the first time after receiving a specific signal. The head and tail ends of the power quantity detection line are connected to the emergency power supply and the power quantity sensor respectively.

[0012] Preferably, the first temperature sensor is connected to control board B through a wire. The second temperature sensor and the first pressure sensor are connected to control board A through wires. The third temperature sensor and the second pressure sensor are connected to control board A through wires. The current sensor is arranged on power supply line A and is connected to control board B. The power quantity sensor is connected to control board C through a wire. The power quantity sensor is connected to the emergency power supply through the power quantity detection line.

[0013] Control board B is used to cut off or connect the first discharge line to cut off or realize the power supply of the emergency power supply to the backplane fan. Control board A is used to adjust the working states of the first electric valve and the second electric valve. Control board C is used to cut off or connect the charging line to cut off or realize the power supplement of the data center power supply and distribution system to the emergency power supply.

[0014] Preferably, the first electric valve and the second electric valve are two completely identical electric valves, and their working states are completely synchronized.

[0015] Preferably, to ensure the reasonable volume of the emergency energy storage box, the volume of the refrigerant liquid storage tank should be estimated according to the formula P×t = α×ρ×V×r, where P represents the cabinet power; t represents a period longer than 15 minutes; α represents the correction coefficient, which needs to be determined in combination with the actual heat exchange situation inside the cabinet; ρ represents the density of the refrigerant tested under the recommended working conditions of the Data Center Design Code GB50174-2017; V represents the volume of the refrigerant liquid storage tank; r represents the latent heat of vaporization of the refrigerant tested under the recommended working conditions of the Data Center Design Code GB50174-2017. Then, based on the volume of the refrigerant liquid storage tank, the volume of the emergency energy storage box can be reasonably estimated. In addition, for the volume of the emergency energy storage box, a redundancy range should be set according to the actual size of the computer room space.

[0016] Preferably, every 10 seconds, the first temperature sensor, the second temperature sensor, the third temperature sensor, the first pressure sensor, the second pressure sensor, the current sensor, and the power sensor simultaneously perform data acquisition respectively, and the heat pipe exhaust temperature T at this moment can be measured. 1 、the temperature T of the refrigerant at the outlet of the heat pipe evaporator 2 、the temperature T of the refrigerant at the outlet of the heat pipe condenser 3 、the pressure p of the refrigerant at the outlet of the heat pipe evaporator 2 、the pressure p of the refrigerant at the outlet of the heat pipe condenser 3 、the current I of the power supply line A 1 、the power Q of the emergency power supply, and then the saturation temperature T of the refrigerant corresponding to p 2 can be obtained. S2 and the saturation temperature T of the refrigerant corresponding to p 3 can be obtained. S3 Thus, the superheat ΔT of the refrigerant at the outlet of the heat pipe evaporator at this moment 2 and the subcooling ΔT of the refrigerant at the outlet of the heat pipe condenser 3 can be obtained.

[0017] Preferably, the heat pipe evaporator, the gas pipe, the heat pipe condenser, and the liquid pipe together form a circulation pipeline.

[0018] Preferably, the outer shell of the emergency energy storage box, the refrigerant liquid storage tank, the first electric valve, the second electric valve, and all pipelines should be made of appropriate high-temperature and high-pressure resistant materials according to the actual working conditions of the refrigerant in the circulation pipeline to ensure the safety of the emergency energy storage box.

[0019] The control method of the heat pipe backplane emergency treatment device includes three controls:

[0020] Control One:

[0021] Step S1: If I 1 = 0, then execute Step S3, otherwise execute Step S2;

[0022] Step S2: Cut off the first discharge line, and the emergency power supply does not supply power to the backplane fan, and continue to execute Step S1;

[0023] Step S3: If T 1 ≥ T 1,set , then execute Step S4, otherwise execute Step S2;

[0024] Step S4: Connect the first discharge line, and the emergency power supply supplies power to the backplane fan, and continue to execute Step S1;

[0025] Specifically, Step S1 is the first step to be executed in Control One;

[0026] Specifically, when the emergency power supply powers the backplane fan, on the basis of providing power to the first electric valve and the second electric valve in real time, the emergency power supply can ensure that the backplane fan operates at the rated power of the backplane fan for at least 15 minutes;

[0027] Specifically, the T 1 and T 1,set are respectively the monitored value and the set value of the heat pipe exhaust air temperature, and the I 1 is the monitored value of the current of the power supply line A.

[0028] Control 2:

[0029] Step S1: If ΔT 2 ≥ΔT 2,set , then execute Step S3, otherwise execute Step S2;

[0030] Step S2: Close the first electric valve and the second electric valve simultaneously, and continue to execute Step S1;

[0031] Step S3: Open the first electric valve and the second electric valve simultaneously. If ΔT 3 ≥ΔT 3,set , then execute Step S2, otherwise execute Step S1;

[0032] Specifically, Step S1 is the first step to be executed in Control 2;

[0033] Specifically, the ΔT 2 and ΔT 2,set are respectively the monitored value and the set value of the superheat degree of the refrigerant at the outlet of the heat pipe evaporator, and the ΔT 3 and ΔT 3,set are respectively the monitored value and the set value of the subcooling degree of the refrigerant at the outlet of the heat pipe condenser;

[0034] Specifically, before the first execution of Step S1, the refrigerant storage tank is filled with liquid refrigerant corresponding to the saturation temperature under the recommended working conditions of the "Data Center Design Code" GB50174-2017.

[0035] Control 3:

[0036] Step S1: If Q < Q 0 , then execute Step S3, otherwise execute Step S2;

[0037] Step S2: Cut off the charging line, and the data center power supply and distribution system does not charge the emergency power supply, and continue to execute Step S1;

[0038] Step S3: Connect the charging line, and the power supply and distribution system of the data center charges the emergency power supply, then continue to execute Step S1;

[0039] Specifically, Step S1 is the first step to be executed in Control Three;

[0040] Specifically, the Q is the monitored value of the power of the emergency power supply, and the Q 0 is the full charge power of the emergency power supply.

[0041] (III) Beneficial Effects

[0042] Compared with the prior art, the present invention provides a heat pipe backplane emergency processing device and a control method, having the following beneficial effects:

[0043] 1. Through the second temperature sensor, the third temperature sensor, the first pressure sensor, and the second pressure sensor, and calculated by the controller, the present invention can obtain the refrigerant superheat degree at the outlet of the heat pipe evaporator and the refrigerant subcooling degree at the outlet of the heat pipe condenser at a certain moment, so as to realize the monitoring of the refrigerant superheat degree at the outlet of the heat pipe evaporator and the refrigerant subcooling degree at the outlet of the heat pipe condenser, which helps to better detect whether the heat pipe fails. After the data center enters the emergency state, when it is monitored that the refrigerant superheat degree at the outlet of the heat pipe evaporator is higher than or equal to the set value ΔT 2,set at this time, the electric valve on the outlet pipeline of the refrigerant liquid storage tank in the emergency energy storage tank can be opened in time. If it is monitored that the refrigerant subcooling degree at the outlet of the heat pipe condenser is lower than the set value ΔT 3,set after that, the electric valve on the outlet pipeline of the refrigerant liquid storage tank will remain open, so as to provide liquid refrigerant for the heat pipe evaporator in time, restore the heat exchange intensity between the refrigerant and the hot air at the heat pipe evaporator under normal conditions, participate in the heat exchange in the circulation pipeline, and ensure the overall heat dissipation efficiency of the device. After the data center has passed the emergency state, if it is monitored that the refrigerant subcooling degree at the outlet of the heat pipe condenser is higher than or equal to the set value ΔT 3,set at this time, the two electric valves in the emergency energy storage tank can be closed in time to ensure that the refrigerant mass flow rate in the circulation pipeline can be maintained within a reasonable range under non-emergency conditions, so as to ensure the heat exchange intensity in the circulation pipeline under non-emergency conditions;

[0044] 2. The present invention monitors whether there is current in the power supply line A through the current sensor, and monitors the heat pipe exhaust air temperature through the first temperature sensor, which can better detect whether the backplane fan fails. Through the relevant flow chart, it can be judged whether it is necessary to connect the first discharge line of the emergency power supply inside the emergency energy storage tank to supply power to the backplane fan so that it operates at the rated power to prevent the temperature inside the cabinet from being too high.

[0045] 3. The present invention realizes intelligent control. Through the signal transmission of temperature sensors, pressure sensors, and current sensors, the working state of the electric valve and the connection status of the first discharge circuit of the emergency power supply will be flexibly adjusted according to the refrigerant superheat at the outlet of the heat pipe evaporator, the refrigerant subcooling at the outlet of the heat pipe condenser, the current of power supply line A, and the heat pipe exhaust air temperature. On the basis of ensuring the avoidance of overheating of the cabinet, energy consumption can be reduced, and the effect can be achieved more precisely.

[0046] 4. The present invention uses the latent heat of vaporization of the refrigerant for phase change cold storage. Compared with the cold storage method of traditional data centers, when storing the same amount of cold, the volume required for the refrigerant phase change cold storage will be much smaller than the volume required for the traditional data center to use the sensible heat of water for cold storage. Therefore, the energy storage density is greater, and the volume space required for the refrigerant phase change cold storage is smaller. The present invention is applicable to compound buildings such as office buildings, and the application scenarios are more extensive.

[0047] 5. In the emergency state, the present invention can respond in a timely manner. By promptly opening the electric valve on the outlet pipeline of the refrigerant liquid storage tank in the emergency energy storage box, the liquid refrigerant in the refrigerant liquid storage tank can directly participate in the heat exchange in the circulation pipeline in a timely manner, reducing the heat pipe exhaust air temperature, without waiting for the chilled water to be transported from the cold storage tank to the heat pipe condenser to restore the condensation effect under normal conditions of the heat pipe condenser. When the backplane fan loses power drive, the present invention can respond in a timely manner. By promptly connecting the first discharge circuit of the emergency power supply inside the emergency energy storage box to supply power to the backplane fan, enabling it to operate at the rated power, thereby promptly driving the server heat exhaust air to flow through the heat pipe evaporator for heat exchange, and further reducing the heat pipe exhaust air temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 is a schematic structural diagram of the device of the present invention;

[0049] Figure 2 is a flowchart of Control One in the device of the present invention;

[0050] Figure 3 is a flowchart of Control Two in the device of the present invention;

[0051] Figure 4 is a flowchart of Control Three in the device of the present invention.

[0052] In the figure: 1. Backplane fan; 2. Heat pipe evaporator; 3. Server; 4. Heat pipe condenser; 5. Integrated cabinet; 6. Liquid pipe; 7. Hot channel; 8. Gas pipe; 9. Second temperature sensor; 10. Third temperature sensor; 11. First temperature sensor; 12. Emergency energy storage box; 13. First electric valve; 14. Second electric valve; 15. Refrigerant liquid storage tank; 16. Control board A; 17. Outlet pipeline; 18. Control board C; 19. Control board B; 20. Emergency power supply; 21. Current sensor; 22. First pressure sensor; 23. Second pressure sensor; 24. Electric quantity sensor. Specific embodiments

[0053] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0054] The present invention provides a technical solution, a heat pipe backplane emergency processing device and a control method. Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 :

[0055] Embodiment 1

[0056] It includes an integrated cabinet 5, an emergency energy storage box 12, a first temperature sensor 11, a second temperature sensor 9, a third temperature sensor 10, a current sensor 21, a first pressure sensor 22, a second pressure sensor 23, etc. A heat pipe evaporator 2 is installed near the left inner wall of the integrated cabinet 5. The heat pipe evaporator 2 is connected to a heat pipe condenser 4 through an air pipe 8. A server 3 is installed on the right inner wall of the integrated cabinet 5. A heat channel 7 is provided between the server 3 and the heat pipe evaporator 2. A first temperature sensor 11 is arranged outside the backplane fan 1. A second temperature sensor 9 and a first pressure sensor 22 are arranged at the outlet of the heat pipe evaporator 2 of the integrated cabinet 5. A third temperature sensor 10 and a second pressure sensor 23 are arranged at the outlet of the heat pipe condenser 4 of the integrated cabinet 5. An emergency energy storage box 12 is arranged below the outside of the bottom of the integrated cabinet 5. The emergency energy storage box 12 internally includes a refrigerant liquid storage tank 15, an outlet pipeline 17, a first electric valve 13, a second electric valve 14, a control board A16, an emergency power supply 20, a control board B19, a control board C18, a power sensor 24 and wires. A liquid pipe 6 is arranged outside the outlet pipeline 17, and the liquid pipe 6 passes through the emergency energy storage box 12. The emergency power supply end of the backplane fan 1 is connected to a first discharge line, the main power supply end of the backplane fan 1 is connected to a power supply line A, and the power supply line A is also connected to a current sensor 21.

[0057] Please refer to Figure 1 , the refrigerant liquid storage tank 15 is fixed inside the emergency energy storage box 12 and is connected to the liquid pipe 6 below the outside of the bottom of the integrated cabinet 5 through two outlet pipelines 17 respectively equipped with a first electric valve 13 and a second electric valve 14. The emergency power supply 20 provides power for the first electric valve 13 and the second electric valve 14 in real time to ensure that when the control board A16 receives signals from the second temperature sensor 9, the first pressure sensor 22, the third temperature sensor 10, and the second pressure sensor 23, it can adjust the working states of the first electric valve 13 and the second electric valve 14 in the first time.

[0058] Please refer to Figure 1 , the power supply ends of the first electric valve 13 and the second electric valve 14 are connected to the emergency power supply 20 through a second discharge line. The emergency power supply 20 is used to supply power to the first electric valve 13 and the second electric valve 14 in real time. The weak electric signal receiving ends of the first electric valve 13 and the second electric valve 14 are connected to the control board A16. The emergency power supply 20 provides power for the two electric valves in real time through the second discharge line. The control board A16 is used to adjust the opening and closing states of the two electric valves according to the signals of the sensors. In this solution, Figure 1 two types of dotted lines are used to respectively show the connection states between the two electric valves and the emergency power supply 20, and between the two electric valves and the control board A16.

[0059] Please refer to Figure 1 On four different interfaces of the emergency power supply 20, a first discharge line, a second discharge line, a charging line, and a power quantity detection line are respectively connected. The first temperature sensor 11 and the current sensor 21 can transmit signals to the control board B19, and the control board B19 is used to connect or disconnect the first discharge line to realize or cut off the power supply of the emergency power supply 20 to the backplane fan 1. The first pressure sensor 22, the second temperature sensor 9, the second pressure sensor 23, and the third temperature sensor 10 can transmit signals to the control board A16, and the control board A16 is used to regulate the working states of the first electric valve 13 and the second electric valve 14. The power quantity sensor 24 is connected to the emergency power supply 20 through the power quantity detection line to monitor the power quantity of the emergency power supply 20. The power quantity sensor 24 can transmit signals to the control board C18, and the control board C18 is used to connect or disconnect the charging line to realize or cut off the power supplement of the data center power supply and distribution system to the emergency power supply 20.

[0060] Please refer to Figure 1 As shown in Figure 1 , the head and tail ends of the first discharge line are the emergency power supply 20 and the backplane fan 1 respectively. The first discharge line passes through the control board B19. The head end of the second discharge line is the emergency power supply 20, and the tail end of the second discharge line is the first electric valve 13 and the second electric valve 14. The head and tail ends of the charging line are the data center power supply and distribution system and the emergency power supply 20 respectively. The charging line passes through the control board C18. The head and tail ends of the power supply line A are the data center power supply and distribution system and the backplane fan 1 respectively. The power supply line A passes through the current sensor 21. The head and tail ends of the power quantity detection line are respectively connected to the emergency power supply 20 and the power quantity sensor 24.

[0061] Please refer to Figure 1 As shown in Figure 1 , the first temperature sensor 11 is connected to the control board B19 through a wire. The second temperature sensor 9 and the first pressure sensor 22 are connected to the control board A16 through a wire. The third temperature sensor 10 and the second pressure sensor 23 are connected to the control board A16 through a wire. The current sensor 21 is arranged on the power supply line A and is connected to the control board B19. The power quantity sensor 24 is connected to the control board C18 through a wire. The power quantity sensor 24 is connected to the emergency power supply 20 through the power quantity detection line.

[0062] The control method of the heat pipe backplane emergency treatment device includes the following steps:

[0063] Control One:

[0064] Step S1: If I 1 = 0, then execute step S3; otherwise, execute step S2;

[0065] Step S2: Cut off the first discharge line, and the emergency power supply 20 does not supply power to the backplane fan 1, and continue to execute step S1;

[0066] Step S3: If T 1 ≥ T 1,set , then execute Step S4; otherwise, execute Step S2;

[0067] Step S4: Turn on the first discharge circuit, and supply power to the backplane fan 1 by the emergency power supply 20, and continue to execute Step S1;

[0068] Specifically, Step S1 is the first step to be executed in Control One;

[0069] Specifically, the T 1 and T 1,set are respectively the monitored value and the set value of the heat pipe exhaust air temperature, and the I 1 is the monitored value of the current of the power supply line A;

[0070] Specifically, when the emergency power supply 20 supplies power to the backplane fan 1, on the basis of providing power to the first electric valve 13 and the second electric valve 14 in real time, the emergency power supply 20 can ensure that the backplane fan 1 can operate at the rated power of the backplane fan 1 for at least 15 minutes.

[0071] Control Two:

[0072] Step S1: If ΔT 2 ≥ ΔT 2,set , then execute Step S3; otherwise, execute Step S2;

[0073] Step S2: Close the first electric valve 13 and the second electric valve 14 simultaneously, and continue to execute Step S1;

[0074] Step S3: Open the first electric valve 13 and the second electric valve 14 simultaneously. If ΔT 3 ≥ ΔT 3,set , then execute Step S2; otherwise, execute Step S1;

[0075] Specifically, Step S1 is the first step to be executed in Control Two;

[0076] Specifically, the ΔT 2 and ΔT 2,set are respectively the monitored value and the set value of the superheat degree of the refrigerant at the outlet of the heat pipe evaporator 2. The ΔT 3 and ΔT 3,set are respectively the monitored value and the set value of the subcooling degree of the refrigerant at the outlet of the heat pipe condenser 4;

[0077] Specifically, before executing step S1 for the first time, the refrigerant storage tank 15 is filled with liquid refrigerant corresponding to the saturation temperature under the recommended working conditions of the "Data Center Design Specification" GB50174-2017.

[0078] Control three:

[0079] Step S1: If Q 0 , then execute step S3, otherwise execute step S2;

[0080] Step S2: Cut off the charging line, the data center power supply and distribution system does not charge the emergency power supply 20, and continues to execute step S1;

[0081] Step S3: Connect the charging line, and the data center power supply and distribution system charges the emergency power supply 20, and continue to execute step S1;

[0082] Specifically, step S1 is the first step executed in control three;

[0083] Specifically, Q is the monitoring value of the power of the emergency power supply 20. 0 It is the full charge of the emergency power supply 20.

[0084] Example 2

[0085] In this embodiment, after the data center enters the emergency state, ΔT 2 ≥ΔT 2,set At this time, the first electric valve 13 and the second electric valve 14 are opened at the same time, and the liquid refrigerant in the refrigerant storage tank 15 begins to flow into the circulation pipeline to strengthen the heat exchange between the refrigerant in the heat pipe evaporator 2 and the hot air in the integrated cabinet 5, thereby reducing the hot air temperature in the integrated cabinet 5. Within a period of time after the two electric valves are opened at the same time, ΔT is monitored. 3 <ΔT 3,set , the two electric valves continue to remain open. After the data center has passed the emergency state, the chiller resumes supplying chilled water to the heat pipe condenser, the mass flow of the liquid refrigerant in the circulation pipeline begins to increase gradually, and the refrigerant in the refrigerant storage tank 15 begins to increase gradually. After a period of time, ΔT 3 ≥ΔT 3,set With ΔT 2 <ΔT 2,set At this time, the two electric valves are closed at the same time and remain closed to ensure that the refrigerant mass flow rate in the circulation pipeline can be maintained within a reasonable range under non-emergency conditions, thereby ensuring the heat exchange effect in the circulation pipeline under non-emergency conditions.

[0086] Example 3

[0087] ​In this embodiment, after the data center enters the emergency state, it is simultaneously detected that I 1 = 0 and T 1 ≥ T 1,set . At this time, the first discharge circuit is turned on, and the emergency power supply 20 supplies power to the backplane fan 1, so that the backplane fan 1 operates at the rated power of the backplane fan 1. After a period of time, it is simultaneously detected that I 1 = 0 and T 1 < T 1,set . At this time, the first discharge circuit is cut off, and the emergency power supply 20 does not supply power to the backplane fan 1. After the data center has passed the emergency state, it is detected that I 1 ≠ 0. At this time, the power supply and distribution system of the data center supplies power to the backplane fan 1, and the backplane fan 1 operates at the rated power of the backplane fan 1. At the same time, the power supply and distribution system of the data center starts to charge the emergency power supply 20 through the charging circuit. When the emergency power supply 20 is fully charged, the charging circuit is cut off.

[0088] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0089] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat pipe back plate emergency treatment device, comprising an integrated cabinet (5), characterized in that: A backplane fan (1) is installed on the backplane of the integrated cabinet (5); a heat pipe evaporator (2) is installed near the left inner wall of the integrated cabinet (5); the heat pipe evaporator (2) is connected to the heat pipe condenser (4) via an air pipe (8); a server (3) is installed on the right inner wall of the integrated cabinet (5); a heat channel (7) is provided between the server (3) and the heat pipe evaporator (2); a first temperature sensor (11) is provided on the outside of the backplane fan (1); a second temperature sensor (9) and a first pressure sensor (22) are provided at the outlet of the heat pipe evaporator (2) of the integrated cabinet (5); a third temperature sensor (10) and a second pressure sensor (22) are provided at the outlet of the heat pipe condenser (4) of the integrated cabinet (5); The integrated cabinet (5) is provided with an emergency energy storage box (12) below the outer side of the bottom, the emergency energy storage box (12) comprises a refrigerant liquid storage tank (15), an outlet pipeline (17), a first electric valve (13), a second electric valve (14), a control panel A (16), an emergency power supply (20), a control panel B (19), a control panel C (18), an electric quantity sensor (24) and a wire, a liquid pipe (6) is provided outside the outlet pipeline (17), and the liquid pipe (6) passes through the emergency energy storage box (12), the emergency power supply end of the backplane fan (1) is connected to a first discharge circuit, the main power supply end of the backplane fan (1) is connected to a power supply line A, and the power supply line A is also connected to a current sensor (21).

2. The heat pipe back plate emergency treatment device according to claim 1, characterized in that: The refrigerant liquid storage tank (15) is fixed inside the emergency energy storage box (12) and is connected to the liquid pipe (6) below the outer side of the bottom of the integrated cabinet (5) through two outlet pipelines (17) respectively equipped with a first electric valve (13) and a second electric valve (14).

3. The heat pipe back plate emergency treatment device according to claim 2, characterized in that: The power supply ends of the first electric valve (13) and the second electric valve (14) are connected to the emergency power supply (20) via a second discharge circuit, and the weak-electric signal receiving ends of the first electric valve (13) and the second electric valve (14) are connected to a control board A (16).

4. The heat pipe back plate emergency treatment device according to claim 3, characterized in that: The four different interfaces of the emergency power supply (20) are respectively connected to a first discharge circuit, a second discharge circuit, a charging circuit and a power detection circuit.

5. The heat pipe back plate emergency treatment device according to claim 4, characterized in that: The first and last ends of the first discharge circuit are the emergency power supply (20) and the backplane fan (1), respectively. The first discharge circuit passes through a control board B (19). The first end of the second discharge circuit is the emergency power supply (20). The second end of the second discharge circuit is a first electric valve (13) and a second electric valve (14). The first and last ends of the charging circuit are a data center power supply and distribution system and an emergency power supply (20), respectively. The charging circuit passes through a control board C (18). The first and last ends of the power supply circuit A are a data center power supply and distribution system and a backplane fan (1), respectively. The power supply circuit A passes through a current sensor (21). The first and last ends of the power detection circuit are connected to the emergency power supply (20) and the power sensor (24), respectively.

6. The heat pipe back plate emergency treatment device according to claim 5, characterized in that: The first temperature sensor (11) is connected to the control board B (19) through a wire. The second temperature sensor (9) and the first pressure sensor (22) are connected to the control board A (16) through a wire. The third temperature sensor (10) and the second pressure sensor (23) are connected to the control board A (16) through a wire. The current sensor (21) is arranged on the power supply line A and is connected to the control board B (19). The power quantity sensor (24) is connected to the control board C (18) through a wire, and the power quantity sensor (24) is connected to the emergency power supply (20) through a power quantity detection line.

7. The heat pipe back plate emergency treatment device according to claim 6, characterized in that: The first electric valve (13) and the second electric valve (14) are two completely identical electric valves, and their working states are completely synchronized.

8. The heat pipe back plate emergency treatment device according to claim 7, characterized in that: The volume of the refrigerant liquid storage tank (15) is estimated according to the formula P×t = α×ρ×V×r, where: P represents the cabinet power; t represents a time period greater than 15 minutes; α represents a correction coefficient, which needs to be determined in combination with the actual heat exchange situation inside the cabinet; ρ represents the density of the refrigerant tested under the recommended working conditions of the "Code for Design of Data Centers" GB50174-2017; V represents the volume of the refrigerant liquid storage tank (15); r represents the latent heat of vaporization of the refrigerant tested under the recommended working conditions of the "Code for Design of Data Centers" GB50174-2017.

9. The heat pipe back plate emergency treatment device according to claim 8, characterized in that: The first temperature sensor (11), the second temperature sensor (9), the third temperature sensor (10), the first pressure sensor (22), the second pressure sensor (23), the current sensor (21), and the power quantity sensor (24) perform data acquisition simultaneously every 10 seconds respectively.

10. A control method for a heat pipe back plate emergency treatment device according to any one of claims 1 to 9, characterized in that: It includes three types of controls: Control One: Step S1: If I1 = 0, then execute Step S3; otherwise, execute Step S2; Step S2: Cut off the first discharge line, and the emergency power supply (20) does not supply power to the backplane fan (1), and continue to execute Step S1; Step S3: If T1 ≥ T 1,set , then execute step S4, otherwise execute step S2; Step S4: Connect the first discharge line, and the emergency power supply (20) supplies power to the backplane fan (1), and continue to execute Step S1; Specifically, Step S1 is the first step to be executed in Control One; Specifically, when the emergency power supply (20) supplies power to the backplane fan (1), on the basis of providing power to the first electric valve (13) and the second electric valve (14) in real time, the emergency power supply (20) can ensure that the backplane fan (1) can operate at the rated power of the backplane fan (1) for at least 15 minutes; Specifically, the T1 and T 1,set are respectively the monitoring value of the heat pipe exhaust temperature and the set value of the heat pipe exhaust temperature, and I1 is the monitoring value of the current of the power supply line A; Control Two: Step S1: If ΔT2 ≥ ΔT 2,set , then execute step S3, otherwise execute step S2; Step S2: The first electric valve (13) and the second electric valve (14) are closed simultaneously, and continue to execute Step S1; Step S3: The first electric valve (13) and the second electric valve (14) are opened simultaneously. If ΔT3 ≥ ΔT 3,set , then execute step S2, otherwise execute step S1; Specifically, Step S1 is the first step to be executed in Control Two; Specifically, the ΔT2 and ΔT 2,set are respectively the superheat monitoring value of the refrigerant at the outlet of the heat pipe evaporator (2) and the superheat setting value of the refrigerant at the outlet of the heat pipe evaporator (2), wherein ΔT3 and ΔT 3,set , are respectively a subcooling monitoring value of the refrigerant at the outlet of the heat pipe condenser (4) and a subcooling setting value of the refrigerant at the outlet of the heat pipe condenser (4); Specifically, before the first execution of Step S1, the refrigerant liquid storage tank (15) is already filled with liquid refrigerant corresponding to the saturation temperature under the recommended working conditions of the "Code for Design of Data Centers" GB50174-2017; Control Three: Step S1: If Q < Q0, then execute Step S3; otherwise, execute Step S2; Step S2: Cut off the charging line, the data center power supply and distribution system does not charge the emergency power supply (20), and continue to execute step S1; Step S3: Connect the charging line, and use the data center power supply and distribution system to charge the emergency power supply (20), and continue to execute step S1; Specifically, step S1 is the first step executed in control three; Specifically, Q is the monitoring value of the power of the emergency power supply (20), and Q0 is the fully charged power of the emergency power supply (20).

Images