Mobile cold supplementing device and data center

Abstract

The embodiment of the utility model provides a mobile cold supplementing device and a data center. The movable cold supplementing device comprises a cold supplementing system, a connecting assembly and a movable assembly. One end of the first connecting hose is connected with a liquid inlet of the liquid storage tank, the other end of the first connecting hose is connected with the first quick plugging connector, and the first quick plugging connector is used for being connected with a socket in the high-temperature side of equipment to be subjected to cold supplementing. And the other end of the second connecting hose is connected with a second quick plugging connector, and the second quick plugging connector is used for being connected with a socket on the low-temperature side of the to-be-cold-supplemented equipment. The moving assembly is used for driving the moving cold supplementing device to move. According to the technical scheme of the invention, the method can achieve the quick refrigeration of a fault server cabinet or a refrigeration looped network for an individual fault liquid cooling server cabinet or refrigeration looped network, greatly shortens the emergency time, and reduces the impact on the calculation power and the economic loss to the minimum.

Description

Technical Field

[0001] The present application relates to the technical field of data centers, and in particular to a mobile cooling supplementation device and a data center. Background Art

[0002] In recent years, the proportion of liquid cooling servers in data centers has increased year by year, but as a new technology, the safety and stability of liquid cooling need to be verified for a long time. The safety of data centers that have applied liquid cooling servers has attracted much attention in the industry. When the liquid cooling temperature control infrastructure fails, the existing temperature control system cannot quickly restore cooling. Utility Model Content

[0003] The present application provides a mobile cooling device and a data center, which can be used for liquid-cooled server cabinets or refrigeration ring networks with individual faults, and can achieve rapid cooling of the faulty server cabinets or refrigeration ring networks, greatly shortening the emergency response time and minimizing the impact on computing power and economic losses.

[0004] This application is achieved through the following technical solutions:

[0005] In the first aspect, the embodiment of the present application provides a mobile supplementary cooling device, which includes a supplementary cooling system, a connecting component and a moving component. The supplementary cooling system includes a liquid storage tank, a first connecting pipe, a first circulating pump and a heat exchanger. The liquid storage tank is used to store supplementary cooling circulating working fluid. The first connecting pipe connects the liquid storage tank and the heat exchanger. The first circulating pump is arranged in the first connecting pipe. The first circulating pump is used to provide power for the supplementary cooling circulating working fluid in the first connecting pipe. The connecting component includes a first connecting hose, a second connecting hose, a first quick plug connector and a second quick plug connector. One end of the first connecting hose is connected to the liquid inlet of the liquid storage tank, and the other end of the first connecting hose is connected to the first quick plug connector. The first quick plug connector is used to connect to the socket on the high temperature side of the equipment to be supplemented with cooling. One end of the second connecting hose is connected to the first liquid outlet of the heat exchanger, and the other end of the second connecting hose is connected to the second quick plug connector. The second quick plug connector is used to connect to the socket on the low temperature side of the equipment to be supplemented with cooling. The supplementary cooling system is arranged in the moving component, and the moving component is used to drive the mobile supplementary cooling device to move.

[0006] According to the mobile cooling device of the embodiment of the present application, the mobile cooling device is driven to move by the mobile component. When a failure occurs in an individual server cabinet or a refrigeration ring network, the mobile cooling device can be promptly moved to the location of the failed server cabinet or the refrigeration ring network to cool the failed server cabinet or the refrigeration ring network, thereby greatly shortening the emergency response time and reducing computing power and economic losses to a minimum.

[0007] According to some embodiments provided in the present application, the number of the first circulation pumps is two, and the two first circulation pumps are arranged in parallel in the first connecting pipeline.

[0008] In the above scheme, there are two first circulation pumps, one of which can be used as a common component and the other can be used as a spare component, so as to cope with the scenario in which the first circulation pump is damaged and reduce the maintenance time.

[0009] According to some embodiments provided in the present application, a pressure sensor is provided at the water outlet of the first circulation pump, and the pressure sensor is used to detect the pressure of the supplementary cooling circulating fluid at the water outlet of the first circulation pump; the mobile supplementary cooling device also includes a control system, and the control system is electrically connected to the pressure sensor and the first circulation pump, and the control system is used to adjust the frequency of the first circulation pump according to the pressure of the supplementary cooling circulating fluid detected by the pressure sensor.

[0010] In the above solution, the pressure sensor is used to detect the pressure of the supplementary cooling circulating medium at the water outlet of the first circulating pump, so that the control system can adjust the frequency of the first circulating pump.

[0011] According to some embodiments provided in the present application, the mobile component includes a base, running wheels and a handle, the cooling system and the connecting component are both arranged on the base, the cooling system is detachably connected to the base, the running wheels are arranged below the base and are rotatably connected to the base, and the handle is connected to the base.

[0012] In the above scheme, the cooling system is detachably connected to the base to facilitate replacement and maintenance; the provision of the running wheels allows the mobile cooling device to move flexibly; the provision of the handle enables the operator to easily move the mobile cooling device.

[0013] According to some embodiments provided in the present application, the liquid storage tank is connected to the first connecting hose through a first stop valve, and the first stop valve is used to cut off or conduct the first connecting hose; the heat exchanger is connected to the second connecting hose through a second stop valve, and the second stop valve is used to cut off or conduct the second connecting hose.

[0014] In the above solution, the first stop valve is provided to cut off or conduct the first connecting hose, so as to facilitate control of whether the cooling circulation medium enters into the liquid storage tank or not.

[0015] According to some embodiments provided in the present application, a temperature sensor is provided at the liquid outlet of the heat exchanger, and the temperature sensor is used to detect the temperature of the supplementary cooling circulation working fluid flowing out of the heat exchanger.

[0016] In the above scheme, the temperature sensor is provided to detect the temperature of the supplementary cooling circulation medium flowing out of the heat exchanger, so as to grasp the refrigeration effect.

[0017] According to some embodiments provided in the present application, the heat exchanger includes a dry cooler, and the mobile supplementary cooling device also includes a first fan, which acts on the dry cooler to accelerate the air flow; the mobile supplementary cooling device also includes a control system, which is electrically connected to the temperature sensor and the first fan, and the control system is used to adjust the frequency of the first fan according to the temperature of the supplementary cooling circulating medium detected by the temperature sensor.

[0018] In the above scheme, the dry cooler is used in conjunction with the first fan to accelerate the air flow so as to cool the supplementary cooling circulating working fluid; the control system adjusts the frequency of the first fan according to the temperature of the supplementary cooling circulating working fluid detected by the temperature sensor, which can facilitate the control of the temperature of the supplementary cooling circulating working fluid flowing out of the liquid outlet of the heat exchanger to meet the refrigeration needs.

[0019] According to some embodiments provided in the present application, the mobile supplementary cooling device further includes a spraying system, and the spraying system is used to spray heat exchange medium onto the pipes of the dry cooler.

[0020] In the above scheme, the spray system is set up to enhance the cooling of the cooling circulation working fluid.

[0021] According to some embodiments provided in the present application, the spray system includes a water receiving pan, a second circulation pump, a spray pipe and a spray head. The water receiving pan is arranged below the heat exchanger, the water receiving pan is used to accommodate heat exchange medium, one end of the spray pipe is connected to the water receiving pan, and the other end of the spray pipe is connected to the spray head. The spray head is located above the heat exchanger, and the second circulation pump is used to transport the heat exchange medium in the water receiving pan to the spray head.

[0022] In the above scheme, a water receiving pan is arranged below the heat exchanger, and the water receiving pan can receive the flowing heat exchange medium to prevent the heat exchange medium from polluting the environment; the spray head is located above the heat exchanger to facilitate the spraying operation of the heat exchanger to facilitate the cooling of the supplementary cooling circulation medium; the second circulation pump is used to transport the heat exchange medium to the spray head so as to spray the heat exchange medium through the spray head.

[0023] According to some embodiments provided in the present application, the heat exchanger includes a supplementary cooling circulation working fluid channel and an air-cooled direct expansion circulation working fluid channel. The supplementary cooling circulation working fluid channel is used to accommodate the supplementary cooling circulation working fluid, and the air-cooled direct expansion circulation working fluid channel is used to accommodate the air-cooled direct expansion circulation working fluid. A first connecting pipe is connected to one end of the supplementary cooling circulation working fluid channel, and the other end of the supplementary cooling circulation working fluid channel is connected to a second connecting hose; the mobile supplementary cooling device also includes a compressor, a condenser and an expansion valve, and the compressor, the condenser, the expansion valve and the air-cooled direct expansion circulation working fluid channel are connected in sequence through pipes.

[0024] In the above scheme, the supplementary cooling circulation working fluid channel and the air-cooled direct expansion circulation working fluid channel are arranged adjacent to each other, and heat is transferred to the air-cooled direct expansion circulation working fluid through heat exchange with the supplementary cooling circulation working fluid to reduce the temperature of the supplementary cooling circulation working fluid.

[0025] According to some embodiments provided in the present application, the mobile supplementary cooling device also includes a second fan, which is used to accelerate the air flow near the condenser; the mobile supplementary cooling device also includes a control system, which is electrically connected to the temperature sensor and the second fan, and the control system is used to adjust the frequency of the second fan according to the temperature of the supplementary cooling circulating medium detected by the temperature sensor.

[0026] In the above scheme, the second fan can accelerate the air flow near the condenser, and the control system can adjust the frequency of the second fan according to the temperature of the supplementary cooling circulating working fluid detected by the temperature sensor, so as to control the temperature of the supplementary cooling circulating working fluid flowing out of the heat exchanger to meet the refrigeration demand.

[0027] According to some embodiments provided in the present application, the heat exchanger includes a shell, a phase change cold storage material and a heat exchange coil. The phase change cold storage material and the heat exchange coil are both arranged in the shell. One end of the heat exchange coil is connected to the first connecting pipe, and the other end of the heat exchange coil is connected to the second connecting hose. The phase change cold storage material is used to absorb the heat of the cooling circulation working fluid.

[0028] In the above scheme, the heat of the supplementary cooling cycle working fluid is absorbed by the phase change of the phase change cold storage material, so as to achieve the cooling of the supplementary cooling cycle working fluid.

[0029] According to some embodiments provided in the present application, the phase change cold storage material is a solid-liquid phase change material, and the initial state of the phase change cold storage material is a solid state.

[0030] In the above scheme, the phase change cold storage material is a solid-liquid phase change material, which can accommodate a larger capacity of phase change cold storage material to meet long-term refrigeration needs.

[0031] According to some embodiments provided in the present application, the mobile cooling device also includes a sight tube, which is connected to a liquid storage tank and is used to detect the liquid level of the cooling circulating medium in the liquid storage tank; the liquid storage tank is provided with a liquid replenishment port, which is used to replenish the cooling circulating medium.

[0032] In the above scheme, the liquid level of the replenishing circulating working medium in the liquid storage tank is detected by the liquid sight tube, and when the liquid level is lower than the preset low liquid level, the liquid is replenished into the liquid storage tank through the liquid replenishing port.

[0033] In a second aspect, an embodiment of the present application further provides a data center, which includes a mobile cooling supplement device as provided in any of the above embodiments.

[0034] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 A schematic diagram of the structure of a mobile supplementary cooling device provided in some embodiments of the present application;

[0037] Figure 2 A schematic diagram of the structure of a mobile cooling device provided in some other embodiments of the present application;

[0038] Figure 3 A schematic structural diagram of a mobile cooling device provided in some other embodiments of the present application.

[0039] Icons: 100-mobile cooling device; 10-cooling system; 11-liquid storage tank; 111-liquid filling port; 12-first connecting pipe; 13-first circulating pump; 14-heat exchanger; 141-cooling circulation working medium channel; 142-air-cooled direct expansion circulation working medium channel; 143-housing; 144-phase change cold storage material; 145-heat exchange coil; 15-second connecting pipe; 16-check valve; 17-first stop valve; 18-second stop valve; 19-exhaust stop valve; 20-connection assembly; 21-first connecting hose ; 22-second connecting hose; 23-first quick-plug connector; 24-second quick-plug connector; 30-moving assembly; 31-base; 32-walking wheel; 33-handle; 41-pressure sensor; 42-temperature sensor; 51-first fan; 52-second fan; 60-spraying system; 61-water tray; 62-second circulating pump; 63-spraying pipe; 64-spraying head; 72-condenser; 73-compressor; 75-expansion valve; 81-sightseeing tube; 90-first box; 91-control system. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0041] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0042] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0043] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0045] The term "plurality" used in the present application refers to two or more (including two).

[0046] The structure of the mobile cooling device provided in the embodiments of the present application will be described below with reference to the accompanying drawings.

[0047] Please refer to Figures 1 to 3 An embodiment of the present application provides a mobile supplementary cooling device 100 , which includes a supplementary cooling system 10 , a connecting component 20 , and a moving component 30 .

[0048] The supplementary cooling system 10 includes a liquid storage tank 11, a first connecting pipe 12, a first circulating pump 13 and a heat exchanger 14. The liquid storage tank 11 is used to store the supplementary cooling circulating working fluid. The first connecting pipe 12 connects the liquid storage tank 11 and the heat exchanger 14. The first circulating pump 13 is arranged in the first connecting pipe 12. The first circulating pump 13 is used to provide power for the supplementary cooling circulating working fluid in the first connecting pipe 12.

[0049] The connecting assembly 20 includes a first connecting hose 21, a second connecting hose 22, a first quick-plug connector 23 and a second quick-plug connector 24. One end of the first connecting hose 21 is connected to the liquid inlet of the liquid storage tank 11, and the other end of the first connecting hose 21 is connected to the first quick-plug connector 23. The first quick-plug connector 23 is used to connect to the socket on the high-temperature side of the equipment to be cooled. One end of the second connecting hose 22 is connected to the first liquid outlet of the heat exchanger 14, and the other end of the second connecting hose 22 is connected to the second quick-plug connector 24. The second quick-plug connector 24 is used to connect to the socket on the low-temperature side of the equipment to be cooled.

[0050] The supplementary cooling system 10 is disposed on a moving assembly 30 , and the moving assembly 30 is used to drive the mobile supplementary cooling device 100 to move.

[0051] The liquid storage tank 11 is a box for storing the cooling cycle working fluid.

[0052] The first connecting pipe 12 is used to connect the liquid storage tank 11 and the heat exchanger 14 so as to transport the supplementary cooling circulating medium in the liquid storage tank 11 to the heat exchanger 14 .

[0053] The first circulation pump 13 provides conveying power for the supplementary cooling circulating medium, and the first circulation pump 13 may be a water pump.

[0054] The heat exchanger 14 is a component used for exchanging heat with the supplementary cooling cycle working medium, and can reduce the temperature of the supplementary cooling cycle working medium.

[0055] One end of the first connecting hose 21 is connected to the liquid inlet of the liquid storage tank 11 to facilitate the delivery of the high-temperature cooling circulating medium of the equipment to be cooled to the liquid storage tank 11. The first connecting hose 21 has good elastic deformation characteristics and can be easily connected to the equipment to be cooled.

[0056] The equipment to be supplemented with cooling can be a liquid-cooled server cabinet and / or a secondary refrigeration loop network, which is a device that needs to be cooled or supplemented with liquid working fluid. Usually, the supplementary cooling cycle working fluid is consistent with the liquid working fluid in the equipment to be supplemented with cooling, such as pure water, 25-30% concentration of ethylene glycol deionized water solution, etc.

[0057] The first quick plug connector 23 can be matched with the socket on the high-temperature side of the equipment to be refrigerated, which is convenient for quick assembly and disassembly to shorten the maintenance time.

[0058] One end of the second connecting hose 22 is connected to the first liquid outlet of the heat exchanger 14, so that the low-temperature supplementary cooling circulating medium flowing out of the heat exchanger 14 flows to the supplementary cooling device. The second connecting hose 22 has good elastic deformation characteristics and can be easily connected to the supplementary cooling device.

[0059] The second quick plug connector 24 can be matched with the socket on the low-temperature side of the equipment to be refrigerated, which is convenient for quick assembly and disassembly to shorten the maintenance time.

[0060] The moving assembly 30 can drive the refrigeration system to move so as to realize the movement of the supplementary cooling device. For example, the moving assembly 30 may include a running wheel, and the refrigeration system is driven to move by the rotation of the running wheel. The running wheel may be an automatic wheel or a manual power wheel.

[0061] According to the mobile cooling device 100 of the embodiment of the present application, the mobile cooling device 100 is driven to move by the mobile component 30. When a failure occurs in an individual server cabinet or a refrigeration ring network, the mobile cooling device 100 can be promptly moved to the location of the failed server cabinet or the refrigeration ring network to cool the failed server cabinet or the refrigeration ring network, thereby greatly shortening the emergency response time and minimizing the impact on computing power and economic losses.

[0062] In some embodiments, the mobile supplementary cooling device 100 further includes a first box 90, the supplementary cooling system 10 is disposed in the first box 90, and the first connecting hose 21 and the second connecting hose 22 are disposed in the first box 90. For example, the first connecting hose 21 and the second connecting hose 22 may be located outside the first box 90, one end of the first connecting hose 21 may be connected to the first box 90, and one end of the second connecting hose 22 may be connected to the first box 90. For another example, one end of the first connecting hose 21 extends into the first box 90 to be connected to the liquid storage tank 11; one end of the second connecting hose 22 extends into the first box 90 to be connected to the heat exchanger 14.

[0063] In some embodiments, the mobile supplementary cooling device 100 further includes a second connecting pipe 15 , and the second connecting hose 22 is connected to the heat exchanger 14 via the second connecting pipe 15 , so that the second connecting hose 22 can be arranged at different positions according to actual needs.

[0064] In some embodiments, an exhaust stop valve 19 is provided at one end of the second connecting pipe 15 close to the second connecting hose 22 , and the exhaust stop valve 19 is used to exhaust the gas in the second connecting pipe 15 .

[0065] When the heat exchanger 14 is disposed in the first box body 90 , the second connecting pipe 15 can be provided to connect the heat exchanger 14 with the second connecting hose 22 . The second connecting hose 22 can be located at any position of the first box body 90 .

[0066] According to some embodiments provided in the present application, the number of the first circulation pumps 13 is two, and the two first circulation pumps 13 are arranged in parallel in the first connecting pipe 12 .

[0067] For example, the first connecting pipeline 12 includes two branches arranged in parallel, and the two first circulation pumps 13 are respectively arranged on the two branches.

[0068] After the mobile cooling device 100 is connected to the equipment to be cooled, when it is working, one of the two first circulation pumps 13 is working and the other is on standby to deal with emergency situations.

[0069] In the above scheme, the number of the first circulating pumps 13 is two, one can be used as a common component, and the other can be used as a spare component, so as to cope with the scenario of damage of the first circulating pump 13 and reduce the maintenance time.

[0070] In some embodiments, a one-way valve 16 is provided on each branch circuit. The one-way valve 16 is provided at the water outlet of the first circulation pump 13 . The one-way valve 16 is used to prevent the supplementary cooling circulating medium in the branch circuit from flowing back to the first circulation pump 13 .

[0071] According to some embodiments provided in the present application, a pressure sensor 41 is provided at the water outlet of the first circulation pump 13, and the pressure sensor 41 is used to detect the pressure of the supplementary cooling circulating medium at the water outlet of the first circulation pump 13; the mobile supplementary cooling device 100 also includes a control system 91, and the control system 91 is electrically connected to the pressure sensor 41 and the first circulation pump 13, and the control system 91 is used to adjust the frequency of the first circulation pump 13 according to the pressure of the supplementary cooling circulating medium detected by the pressure sensor 41.

[0072] When the supplementary cold circulating medium delivered by the first circulating pump 13 flows through the pressure sensor 41 , the pressure sensor 41 detects the pressure of the supplementary cold circulating medium at the water outlet of the first circulating pump 13 , so as to grasp the flow rate of the supplementary cold circulating medium in the first connecting pipe 12 .

[0073] The control system 91 may be a PCL (Programmable Logic Controller) for implementing control over various electrical components.

[0074] The first circulation pump 13 is a variable frequency pump. When the pressure P1 detected by the pressure sensor 41 is less than the set pressure value Ps-deviation Pp, the control system 91 increases the frequency of the first circulation pump 13; when the pressure P1 detected by the pressure sensor 41 is greater than the set pressure value Ps+deviation Pp, the control system 91 reduces the frequency of the first circulation pump 13; when the set pressure value Ps+deviation Pp≥the pressure P1 detected by the pressure sensor 41≥the set pressure value Ps-deviation Pp, the frequency of the first circulation pump 13 is not changed, and the first circulation pump 13 is operated at a fixed frequency. The pressure sensor 41 periodically detects the pressure P1.

[0075] In the above solution, the pressure sensor 41 is used to detect the pressure of the supplementary cooling circulating medium at the outlet of the first circulating pump 13 , so that the control system 91 can adjust the frequency of the first circulating pump 13 .

[0076] According to some embodiments provided in the present application, the mobile component 30 includes a base 31, running wheels 32 and a handle 33. The cooling system 10 and the connecting component 20 are both arranged on the base 31. The cooling system 10 is detachably connected to the base 31. The running wheels 32 are arranged below the base 31 and are rotatably connected to the base 31. The handle 33 is connected to the base 31.

[0077] The base 31 can be called a vehicle body, and has good load-bearing capacity. For example, the base 31 can be a metal plate.

[0078] The running wheel 32 is rotatably connected to the base 31 , and when the running wheel 32 rotates relative to the base 31 , the base 31 can be driven to move.

[0079] The running wheel 32 may be a steering wheel for automatic movement, or a rotating wheel for manpower to push the base 31 to realize the movement of the mobile cooling device 100.

[0080] The handle 33 is connected to the base 31 to facilitate manual adjustment of the position of the mobile cooling device 100 .

[0081] In the above scheme, the cooling system 10 is detachably connected to the base 31 to facilitate replacement and maintenance; the provision of the walking wheels 32 allows the mobile cooling device 100 to move flexibly; the provision of the handle 33 enables the operator to easily move the mobile cooling device 100.

[0082] According to some embodiments provided in the present application, the liquid storage tank 11 is connected to the first connecting hose 21 through a first stop valve 17, and the first stop valve 17 is used to cut off or conduct the first connecting hose 21; the heat exchanger 14 is connected to the second connecting hose 22 through a second stop valve 18, and the second stop valve 18 is used to cut off or conduct the second connecting hose 22.

[0083] In the above solution, the first stop valve 17 is provided to cut off or conduct the first connecting hose 21 , so as to control whether the supplementary cooling cycle medium enters into the liquid storage tank 11 or not.

[0084] The first stop valve 17 and the second stop valve 18 may be solenoid valves, which are electrically connected to the control system 91 . The first stop valve 17 and the second stop valve 18 are opened or closed under the control of the control system 91 .

[0085] According to some embodiments provided in the present application, a temperature sensor 42 is provided at the liquid outlet of the heat exchanger 14 , and the temperature sensor 42 is used to detect the temperature of the supplementary cooling circulation working fluid flowing out of the heat exchanger 14 .

[0086] In the above solution, the temperature sensor 42 is provided to detect the temperature of the supplementary cooling cycle working fluid flowing out of the heat exchanger 14, so as to grasp the refrigeration effect.

[0087] According to some embodiments provided in the present application, the heat exchanger 14 includes a dry cooler, and the mobile supplementary cooling device 100 also includes a first fan 51, which acts on the dry cooler to accelerate the air flow; the mobile supplementary cooling device 100 also includes a control system 91, which is electrically connected to the temperature sensor 42 and the first fan 51, and the control system 91 is used to adjust the frequency of the first fan 51 according to the temperature of the supplementary cooling circulating working fluid detected by the temperature sensor 42.

[0088] The first fan 51 is a variable frequency fan.

[0089] The supplementary cooling circulating medium flows inside the dry cooler, and the first fan 51 drives the air flow when working, thereby accelerating the heat exchange of the supplementary cooling circulating medium in the dry cooler.

[0090] In the above scheme, the dry cooler is used in conjunction with the first fan 51 to accelerate the air flow so as to cool the supplementary cooling circulating medium; the control system 91 adjusts the frequency of the first fan 51 according to the temperature of the supplementary cooling circulating medium detected by the temperature sensor 42, which can facilitate the control of the temperature of the supplementary cooling circulating medium flowing out of the liquid outlet of the heat exchanger 14, thereby meeting the refrigeration requirements.

[0091] For example, when the temperature T1 detected by the temperature sensor 42 is less than the set temperature Ts-deviation Tp, the control system 91 reduces the frequency of the first fan 51. When the temperature T1 detected by the temperature sensor 42 is greater than the set temperature Ts+deviation Tp, the control system 91 increases the frequency of the first fan 51; when the set temperature Ts+deviation Tp≥the temperature T1 detected by the temperature sensor 42≥the set temperature Ts-deviation Tp, the frequency of the first fan 51 is not changed, and the first fan 51 is operated at a fixed frequency. The temperature sensor 42 periodically detects the temperature T1.

[0092] According to some embodiments provided in the present application, the mobile supplementary cooling device 100 further includes a spray system 60, and the spray system 60 is used to spray heat exchange medium onto the pipes of the dry cooler.

[0093] The heat exchange medium may be tap water or other liquids, such as pure water or ethylene glycol solution. Pure water or ethylene glycol solution may avoid scaling problems of the spray system 60 during long-term use.

[0094] In the above solution, the spray system 60 is provided to enhance the cooling of the supplementary cooling cycle working fluid.

[0095] According to some embodiments provided in the present application, the spray system 60 includes a water receiving tray 61, a second circulation pump 62, a spray pipe 63 and a spray head 64. The water receiving tray 61 is arranged below the heat exchanger 14, and the water receiving tray 61 is used to accommodate heat exchange medium. One end of the spray pipe 63 is connected to the water receiving tray 61, and the other end of the spray pipe 63 is connected to the spray head 64. The spray head 64 is located above the heat exchanger 14, and the second circulation pump 62 is used to transport the heat exchange medium in the water receiving tray 61 to the spray head 64.

[0096] The water receiving pan 61 is located below the heat exchanger 14, and the spray head 64 is located above the heat exchanger 14. When the spray head 64 sprays the heat exchange medium to the heat exchanger 14, the un-volatile heat exchange medium flows into the water receiving pan 61 to prevent the heat exchange medium from escaping and affecting the environment.

[0097] In the above scheme, the water receiving pan 61 is arranged below the heat exchanger 14, and the water receiving pan 61 can receive the flowing heat exchange medium to prevent the heat exchange medium from polluting the environment; the spray head 64 is located above the heat exchanger 14 to facilitate the spraying operation of the heat exchanger 14 to facilitate the cooling of the supplementary cooling circulation medium; the second circulation pump 62 is used to transport the heat exchange medium to the spray head 64, so as to spray the heat exchange medium through the spray head 64.

[0098] According to some embodiments provided in the present application, the heat exchanger 14 includes a supplementary cooling circulation working fluid channel 141 and an air-cooled direct expansion circulation working fluid channel 142. The supplementary cooling circulation working fluid channel 141 is used to accommodate the supplementary cooling circulation working fluid, and the air-cooled direct expansion circulation working fluid channel 142 is used to accommodate the air-cooled direct expansion circulation working fluid. The first connecting pipe 12 is connected to one end of the supplementary cooling circulation working fluid channel 141, and the other end of the supplementary cooling circulation working fluid channel 141 is connected to the second connecting hose 22; the mobile supplementary cooling device 100 also includes a compressor 73, a condenser 72, and an expansion valve 75. The compressor 73, the condenser 72, the expansion valve 75 and the air-cooled direct expansion circulation working fluid channel 142 are connected in sequence through pipes.

[0099] The compressor 73, the condenser 72, the expansion valve 75 and the air-cooled direct expansion cycle working medium channel 142 constitute an air-cooled direct expansion cycle working medium circulation pipeline to allow the air-cooled direct expansion cycle working medium to circulate. That is, the compressor 73, the condenser 72, the expansion valve 75 and the air-cooled direct expansion cycle working medium channel 142 form a refrigeration cycle system, wherein the air-cooled direct expansion cycle working medium channel 142 realizes the function of the evaporator. The specific functions and effects of the compressor 73, the condenser 72, the expansion valve 75 and the air-cooled direct expansion cycle working medium channel 142 refer to the prior art and will not be repeated here. The air-cooled direct expansion cycle working medium is, for example, Freon.

[0100] The heat exchanger 14 also includes an outer shell 143, and the supplementary cooling circulation working fluid channel 141 and the air-cooled direct expansion circulation working fluid channel 142 are arranged in the outer shell 143, and the distance between the supplementary cooling circulation working fluid channel 141 and the air-cooled direct expansion circulation working fluid channel 142 is relatively close. When the supplementary cooling circulation working fluid with a higher temperature flows through the supplementary cooling circulation working fluid channel 141, the air-cooled direct expansion circulation working fluid with a lower temperature flowing through the air-cooled direct expansion circulation working fluid channel 142 can absorb heat, so that the temperature near the supplementary cooling circulation working fluid channel 141 is reduced, thereby reducing the temperature of the supplementary cooling circulation working fluid.

[0101] In the above scheme, the supplementary cooling circulation working fluid channel 141 and the air-cooled direct expansion circulation working fluid channel 142 are arranged adjacent to each other, and the air-cooled direct expansion circulation working fluid exchanges heat with the supplementary cooling circulation working fluid to transfer heat to the air-cooled direct expansion circulation working fluid to reduce the temperature of the supplementary cooling circulation working fluid.

[0102] According to some embodiments provided in the present application, the mobile supplementary cooling device 100 also includes a second fan 52, which is used to accelerate the air flow near the condenser 72; the mobile supplementary cooling device 100 also includes a control system 91, which is electrically connected to the temperature sensor 42 and the second fan 52, and the control system 91 is used to adjust the frequency of the second fan 52 according to the temperature of the supplementary cooling circulating working fluid detected by the temperature sensor 42.

[0103] The second fan 52 is a variable frequency fan and is used to drive air flow and exchange heat with the air-cooled direct expansion cycle working medium in the condenser 72 .

[0104] In the above scheme, the second fan 52 can accelerate the air flow near the condenser 72, and the control system 91 can adjust the frequency of the second fan 52 according to the temperature of the supplementary cooling circulating working fluid detected by the temperature sensor 42, so as to control the temperature of the supplementary cooling circulating working fluid flowing out of the heat exchanger 14 to meet the refrigeration demand.

[0105] For example, when the temperature T1 detected by the temperature sensor 42 is less than the set temperature Ts-deviation Tp, the control system 91 reduces the frequency of the compressor 73 and the second fan 52. When the temperature T1 detected by the temperature sensor 42 is greater than the set temperature Ts+deviation Tp, the control system 91 increases the frequency of the compressor 73 and the second fan 52; when the set temperature Ts+deviation Tp≥the temperature T1 detected by the temperature sensor 42≥the set temperature Ts-deviation Tp, the frequency of the compressor 73 and the second fan 52 is not changed, and the compressor 73 and the second fan 52 are operated at a fixed frequency. Among them, the temperature sensor 42 periodically detects the temperature T1.

[0106] According to some embodiments provided in the present application, the heat exchanger 14 includes a shell 143, a phase change cold storage material 144 and a heat exchange coil 145. The phase change cold storage material 144 and the heat exchange coil 145 are both arranged in the shell 143. One end of the heat exchange coil 145 is connected to the first connecting pipe 12, and the other end of the heat exchange coil 145 is connected to the second connecting hose 22. The phase change cold storage material 144 is used to absorb the heat of the cooling cycle working fluid.

[0107] The shell 143 is used to accommodate the phase change cold storage material 144 and the heat exchange coil 145. The phase change cold storage material 144 is filled in the shell 143 and contacts the heat exchange coil 145 to facilitate heat exchange between the phase change cold storage material 144 and the supplementary cooling circulating medium in the heat exchange coil 145.

[0108] In the above solution, the heat of the supplementary cooling cycle working fluid is absorbed by the phase change of the phase change cold storage material 144, so as to achieve the cooling of the supplementary cooling cycle working fluid.

[0109] According to some embodiments provided in the present application, the phase-change cold storage material 144 is a solid-liquid phase-change material, and the initial state of the phase-change cold storage material 144 is a solid state.

[0110] In the above solution, the phase change cold storage material 144 is a solid-liquid phase change material, which can absorb more heat to meet the long-term cooling demand. The phase change cold storage material 144 is, for example, a phase change energy storage (temperature adjustment) material (phase change microcapsule).

[0111] According to some embodiments provided in the present application, the mobile cooling device 100 also includes a sight glass 81, which is connected to the liquid storage tank 11 and is used to detect the liquid level of the cooling circulating medium in the liquid storage tank 11; the liquid storage tank 11 is provided with a liquid replenishment port 111, which is used to replenish the cooling circulating medium.

[0112] The sight glass 81 can be a transparent tube for observing the refrigerant in the refrigerant circulation medium. The liquid level in the sight glass 81 is the same as the liquid level in the liquid storage tank 11.

[0113] In the above solution, the liquid level of the replenishing circulating medium in the liquid storage tank 11 is detected by the liquid sight tube 81 , and when the liquid level is lower than the preset low liquid level, the liquid is replenished into the liquid storage tank 11 through the liquid replenishing port 111 .

[0114] According to some embodiments of the present application, when the heat exchanger 14 adopts dry air cooling heat exchange, the specific working principle is:

[0115] When emergency cooling demand occurs, the staff holds the handle 33 tightly and pushes the moving assembly 30 to transport the mobile cooling device 100 to the required location.

[0116] Please refer to Figure 1 , quickly connect the second quick-plug connector 24 and the first quick-plug connector 23 to the water inlet and outlet of the refrigeration server cabinet or the refrigeration ring network, start the first circulation pump 13, start the first fan 51, open the exhaust stop valve 19, close the first stop valve 17 and the second stop valve 18, and the air inside the pipeline system is discharged through the exhaust stop valve 19. After the exhaust is completed, close the exhaust stop valve 19 and open the first stop valve 17 and the second stop valve 18.

[0117] The working process of the cold supplementary circulating working fluid is as follows: the liquid cold supplementary circulating working fluid exchanges heat with the air at the heat exchanger 14, and the high-temperature liquid cold supplementary circulating working fluid becomes a low-temperature liquid cold supplementary circulating working fluid, flows through the second stop valve 18, the second connecting hose 22, and the second quick-plug connector 24 to be transported to the server cabinet or the refrigeration ring network, and the low-temperature liquid cold supplementary circulating working fluid absorbs the heat of the server in the server cabinet or the refrigeration ring network and becomes a high-temperature liquid cold supplementary circulating working fluid, flows through the first quick-plug connector 23, the first connecting hose 21, and the first stop valve 17 to the liquid storage tank 11, and under the action of the first circulating pump 13, the high-temperature liquid cold supplementary circulating working fluid in the liquid storage tank 11 is transported to the heat exchanger 14 for heat exchange with the air, and such a reciprocating cycle is used to cool the server cabinet or the refrigeration ring network.

[0118] Among them, the frequency control of the first circulating pump 13 is:

[0119] When the pressure P1 detected by the pressure sensor 41 is less than the set pressure value Ps-deviation Pp, the control system 91 increases the frequency of the first circulation pump 13. When the pressure P1 detected by the pressure sensor 41 is greater than the set pressure value Ps+deviation Pp, the control system 91 reduces the frequency of the first circulation pump 13. When the set pressure value Ps+deviation Pp≥the pressure P1 detected by the pressure sensor 41≥the set pressure value Ps-deviation Pp, the frequency of the first circulation pump 13 is not changed, and the first circulation pump 13 is operated at a fixed frequency. Among them, the pressure sensor 41 periodically detects the pressure P1.

[0120] The frequency control of the first fan 51 is:

[0121] When the temperature T1 detected by the temperature sensor 42 is less than the set temperature Ts-deviation Tp, the control system 91 reduces the frequency of the first fan 51. When the temperature T1 detected by the temperature sensor 42 is greater than the set temperature Ts+deviation Tp, the control system 91 increases the frequency of the first fan 51. When the set temperature Ts+deviation Tp≥the temperature T1 detected by the temperature sensor 42≥the set temperature Ts-deviation Tp, the frequency of the first fan 51 is not changed, and the first fan 51 is operated at a fixed frequency. The temperature sensor 42 periodically detects the temperature T1.

[0122] During operation, pay attention to the liquid level height of the sight glass 81. If the height is insufficient, replenish the liquid through the replenishment port 111. If one of the first circulation pumps 13 fails during startup or operation, the first circulation pump 13 is shut down and the other first circulation pump 13 is started. If the temperature T1 detected by the temperature sensor 42 is greater than the set temperature Ts+deviation Tp, and the duration exceeds the set time, the second circulation pump 62 can be started to transport the heat exchange medium in the water receiving tray 61 to the spray head 64, flow through the surface of the heat exchanger 14, and fall to the water receiving tray 61. In this process, the heat exchange medium is in direct contact with the air, and the temperature of the air and the wall of the heat exchanger 14 is reduced by evaporation, thereby achieving an enhanced refrigeration effect.

[0123] According to some embodiments of the present application, when an air-cooled direct expansion heat exchange method is adopted at the heat exchanger 14, the specific working principle is as follows:

[0124] Please refer to Figure 2 When emergency cooling demand occurs, the staff holds the handle 33 tightly and pushes the moving assembly 30 to transport the mobile cooling device 100 to the required location.

[0125] The second quick-plug connector 24 and the first quick-plug connector 23 are quickly connected to the water inlet and outlet of the server cabinet or the refrigeration ring network that requires refrigeration, the first circulation pump 13 is started, the compressor 73 is started, the exhaust stop valve 19 is opened, the first stop valve 17 and the second stop valve 18 are closed, and the air inside the pipeline system is discharged through the exhaust stop valve 19. After the exhaust is completed, the exhaust stop valve 19 is closed, and the first stop valve 17 and the second stop valve 18 are opened.

[0126] The working process of the cold supplementary circulating medium: the liquid cold supplementary circulating medium exchanges heat in the heat exchanger 14, and the high-temperature liquid cold supplementary circulating medium becomes a low-temperature liquid cold supplementary circulating medium, flows through the second stop valve 18, the second connecting hose 22, and the second quick-plug connector 24 to be transported to the server cabinet or the refrigeration ring network, and the low-temperature liquid cold supplementary circulating medium absorbs the heat of the server in the server cabinet or the refrigeration ring network, and becomes a high-temperature liquid cold supplementary circulating medium, and flows through the first quick-plug connector 23, the first connecting hose 21, and the first stop valve 17 to the liquid storage tank 11. Under the action of the first circulation pump 13, the storage liquid The high-temperature liquid supplementary cooling circulating working fluid in the box 11 is transported to the heat exchanger 14, and the supplementary cooling circulating working fluid flows through the supplementary cooling circulating working fluid channel 141 and exchanges heat with the air-cooled direct expansion circulating working fluid flowing through the air-cooled direct expansion circulating working fluid channel 142, and transfers heat to the air-cooled direct expansion circulating working fluid. After the air-cooled direct expansion circulating working fluid flowing through the air-cooled direct expansion circulating working fluid channel 142 absorbs heat, a refrigeration cycle is formed through the compressor 73, the condenser 72, and the expansion valve 75. The second fan 52 drives the air to exchange heat with the air-cooled direct expansion circulating working fluid in the condenser 72, and such a reciprocating cycle is used to cool the server cabinet or the refrigeration ring network.

[0127] Among them, the frequency control of the first circulating pump 13 is:

[0128] When the pressure P1 detected by the pressure sensor 41 is less than the set pressure value Ps-deviation Pp, the control system 91 increases the frequency of the first circulation pump 13. When the pressure P1 detected by the pressure sensor 41 is greater than the set pressure value Ps+deviation Pp, the control system 91 reduces the frequency of the first circulation pump 13. When the set pressure value Ps+deviation Pp≥the pressure P1 detected by the pressure sensor 41≥the set pressure value Ps-deviation Pp, the frequency of the first circulation pump 13 is not changed, and the first circulation pump 13 is operated at a fixed frequency. Among them, the pressure sensor 41 periodically detects the pressure P1.

[0129] The frequency control of the compressor 73 and the second fan 52 is:

[0130] When the temperature T1 detected by the temperature sensor 42 is less than the set temperature Ts-deviation Tp, the control system 91 reduces the frequency of the compressor 73 and the second fan 52. When the temperature T1 detected by the temperature sensor 42 is greater than the set temperature Ts+deviation Tp, the control system 91 increases the frequency of the compressor 73 and the second fan 52. When the set temperature Ts+deviation Tp≥the temperature T1 detected by the temperature sensor 42≥the set temperature Ts-deviation Tp, the frequency of the compressor 73 and the second fan 52 is not changed, and the compressor 73 and the second fan 52 are operated at a fixed frequency. Among them, the temperature sensor 42 periodically detects the temperature T1.

[0131] During operation, pay attention to the liquid level height of the sight glass 81. If the height is insufficient, replenish the liquid through the replenishing port 111. If one of the first circulating pumps 13 fails during startup or operation, the first circulating pump 13 is shut down and the other first circulating pump 13 is started.

[0132] According to some embodiments of the present application, when the phase change cold storage heat exchange method is adopted at the heat exchanger 14, the specific working principle is as follows:

[0133] Please refer to Figure 3 When emergency cooling demand occurs, the staff holds the handle 33 tightly and pushes the moving assembly 30 to transport the mobile cooling device 100 to the required location.

[0134] The second quick-plug connector 24 and the first quick-plug connector 23 are quickly connected to the water inlet and outlet of the server cabinet or the refrigeration ring network that requires refrigeration, the first circulation pump 13 is started, the exhaust stop valve 19 is opened, the first stop valve 17 and the second stop valve 18 are closed, and the air inside the pipeline system after the first circulation pump 13 is discharged through the exhaust stop valve 19. After the exhaust is completed, the exhaust stop valve 19 is closed, and the first stop valve 17 and the second stop valve 18 are opened.

[0135] Before the supplementary cooling cycle medium works, the initial state of the phase change cold storage material 144 is solid.

[0136] Working process of cold supplementary circulating working fluid: the cold supplementary circulating working fluid flows through the heat exchange coil 145 and exchanges heat with the phase change cold storage material 144, and the cold supplementary circulating working fluid changes from high-temperature liquid to low-temperature liquid, and flows through the second stop valve 18, the second connecting hose 22, and the second quick plug-in connector 24 to be transported to the server cabinet or the refrigeration ring network. The low-temperature liquid cold supplementary circulating working fluid absorbs the heat of the server in the server cabinet or the refrigeration ring network and becomes a high-temperature liquid cold supplementary circulating working fluid, and flows through the first quick plug-in connector 23, the first connecting hose 21, and the first stop valve 17 to the liquid storage tank 11. Under the action of the first circulating pump 13, the high-temperature liquid cold supplementary circulating working fluid in the liquid storage tank 11 is transported to the heat exchanger 14, and the cold supplementary circulating working fluid flows through the heat exchange coil 145 and exchanges heat with the phase change cold storage material 144. Such a reciprocating cycle realizes refrigeration of the server cabinet or the refrigeration ring network.

[0137] As time goes by, the phase change cold storage material 144 releases cold energy, changing from solid to liquid, thus completing the release of cold energy.

[0138] Among them, the frequency control of the first circulating pump 13 is:

[0139] When the pressure P1 detected by the pressure sensor 41 is less than the set pressure value Ps-deviation Pp, the control system 91 increases the frequency of the first circulation pump 13. When the pressure P1 detected by the pressure sensor 41 is greater than the set pressure value Ps+deviation Pp, the control system 91 reduces the frequency of the first circulation pump 13. When the set pressure value Ps+deviation Pp≥the pressure P1 detected by the pressure sensor 41≥the set pressure value Ps-deviation Pp, the frequency of the first circulation pump 13 is not changed, and the first circulation pump 13 is operated at a fixed frequency. Among them, the pressure sensor 41 periodically detects the pressure P1.

[0140] During operation, pay attention to the liquid level height of the sight glass 81. If the height is insufficient, replenish the liquid through the replenishing port 111. If one of the first circulating pumps 13 fails during startup or operation, the first circulating pump 13 is shut down and the other first circulating pump 13 is started.

[0141] According to some embodiments of the present application, the embodiments of the present application further provide a data center, which includes a mobile supplementary cooling device 100 as provided in any of the above embodiments.

[0142] The data center also includes liquid-cooled server cabinets and / or secondary refrigeration ring networks. When a server cabinet or refrigeration ring network fails, the mobile cooling device 100 can be moved to the failed server cabinet or refrigeration ring network to facilitate the mobile cooling device 100 to cool the server cabinet or refrigeration ring network.

[0143] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A mobile cooling device, characterized in that: include: A supplementary cooling system, comprising a liquid storage tank, a first connecting pipe, a first circulating pump and a heat exchanger, wherein the liquid storage tank is used to store supplementary cooling circulating working fluid, the first connecting pipe connects the liquid storage tank and the heat exchanger, the first circulating pump is arranged in the first connecting pipe, and the first circulating pump is used to provide power for the supplementary cooling circulating working fluid in the first connecting pipe; A connection assembly, comprising a first connection hose, a second connection hose, a first quick-plug connector and a second quick-plug connector, wherein one end of the first connection hose is connected to the liquid inlet of the liquid storage tank, the other end of the first connection hose is connected to the first quick-plug connector, the first quick-plug connector is used to connect to the socket on the high-temperature side of the equipment to be supplemented with cooling, one end of the second connection hose is connected to the first liquid outlet of the heat exchanger, the other end of the second connection hose is connected to the second quick-plug connector, and the second quick-plug connector is used to connect to the socket on the low-temperature side of the equipment to be supplemented with cooling; A mobile component, wherein the cooling system is arranged on the mobile component, and the mobile component is used to drive the mobile cooling device to move.

2. The mobile supplementary cooling device according to claim 1, characterized in that: The number of the first circulation pumps is two, and the two first circulation pumps are arranged in parallel in the first connecting pipeline.

3. The mobile supplementary cooling device according to claim 1, characterized in that: A pressure sensor is provided at the water outlet of the first circulation pump, and the pressure sensor is used to detect the pressure of the supplementary cooling circulating medium at the water outlet of the first circulation pump; The mobile supplementary cooling device also includes a control system, which is electrically connected to the pressure sensor and the first circulating pump. The control system is used to adjust the frequency of the first circulating pump according to the pressure of the supplementary cooling circulating working fluid detected by the pressure sensor.

4. The mobile supplementary cooling device according to claim 1, characterized in that: The mobile component includes a base, running wheels and a handle. The cooling system and the connecting component are both arranged on the base. The cooling system is detachably connected to the base. The running wheels are arranged below the base and are rotatably connected to the base. The handle is connected to the base.

5. The mobile supplementary cooling device according to claim 1, characterized in that: The liquid storage tank is connected to the first connecting hose via a first stop valve, and the first stop valve is used to cut off or conduct the first connecting hose; The heat exchanger is connected to the second connecting hose via a second stop valve, and the second stop valve is used to cut off or conduct the second connecting hose.

6. The mobile supplementary cooling device according to claim 1, characterized in that: A temperature sensor is provided at the liquid outlet end of the heat exchanger, and the temperature sensor is used to detect the temperature of the supplementary cooling circulation working fluid flowing out of the heat exchanger.

7. The mobile supplementary cooling device according to claim 6, characterized in that: The heat exchanger includes a dry cooler, and the mobile cooling device also includes a first fan, which acts on the dry cooler to accelerate air flow; The mobile supplementary cooling device also includes a control system, which is electrically connected to the temperature sensor and the first fan, and is used to adjust the frequency of the first fan according to the temperature of the supplementary cooling circulating medium detected by the temperature sensor.

8. The mobile supplementary cooling device according to claim 7, characterized in that: The mobile supplementary cooling device also includes a spray system, which is used to spray heat exchange medium onto the pipeline of the dry cooler.

9. The mobile supplementary cooling device according to claim 8, characterized in that: The spray system includes a water receiving pan, a second circulating pump, a spray pipe and a spray head. The water receiving pan is arranged below the heat exchanger. The water receiving pan is used to accommodate heat exchange medium. One end of the spray pipe is connected to the water receiving pan, and the other end of the spray pipe is connected to the spray head. The spray head is located above the heat exchanger. The second circulating pump is used to transport the heat exchange medium in the water receiving pan to the spray head.

10. The mobile supplementary cooling device according to claim 6, characterized in that: The heat exchanger comprises a supplementary cooling circulation working medium channel and an air-cooled direct expansion circulation working medium channel, the supplementary cooling circulation working medium channel is used to accommodate the supplementary cooling circulation working medium, the air-cooled direct expansion circulation working medium channel is used to accommodate the air-cooled direct expansion circulation working medium, the first connecting pipe is connected to one end of the supplementary cooling circulation working medium channel, and the other end of the supplementary cooling circulation working medium channel is connected to the second connecting hose; The mobile cooling device also includes a compressor, a condenser and an expansion valve. The compressor, the condenser, the expansion valve and the air-cooled direct expansion cycle working medium channel are connected in sequence through pipelines.

11. The mobile supplementary cooling device according to claim 10, characterized in that: The mobile supplementary cooling device further comprises a second fan, which is used to accelerate the air flow near the condenser; The mobile supplementary cooling device also includes a control system, which is electrically connected to the temperature sensor and the second fan, and is used to adjust the frequency of the second fan according to the temperature of the supplementary cooling circulating medium detected by the temperature sensor.

12. The mobile supplementary cooling device according to claim 1, characterized in that: The heat exchanger includes a shell, a phase-change cold storage material and a heat exchange coil. The phase-change cold storage material and the heat exchange coil are both arranged in the shell. One end of the heat exchange coil is connected to the first connecting pipe, and the other end of the heat exchange coil is connected to the second connecting hose. The phase-change cold storage material is used to absorb the heat of the cooling cycle working fluid.

13. The mobile supplementary cooling device according to claim 12, characterized in that: The phase-change cold storage material is a solid-liquid phase-change material, and the initial state of the phase-change cold storage material is solid.

14. The mobile supplementary cooling device according to claim 1, characterized in that: The mobile supplementary cooling device further comprises a liquid sight tube, which is connected to the liquid storage tank and is used to detect the liquid level of the supplementary cooling circulating medium in the liquid storage tank; The liquid storage tank is provided with a liquid replenishing port, and the liquid replenishing port is used to replenish the cooling cycle working medium.

15. A data center, characterized in that: It comprises the mobile supplementary cooling device as described in any one of claims 1-14.

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