Abstract: Embodiments of the present disclosure provide a data center and an air conditioning system thereof. The air conditioning system includes an air-inlet grille, a precooling module, a first spray module, a cooling module, a direct evaporative heat exchanger, a second spray module, a water collector, and an outdoor fan. The precooling module is arranged on an inner side of the air-inlet grille and includes a plurality of groups of indirect evaporative coolers. The first spray module is arranged above the precooling module, and the second spray module is arranged above the direct evaporative heat exchanger. The cooling module is arranged below the direct evaporative heat exchanger and includes a plurality of cooling sub-modules.

Abstract: Embodiments of the present disclosure provide a data center computer room cooling system and a control method thereof, relating to the field of heat dissipation technology of the data center computer room. The system includes an indoor subsystem and an outdoor subsystem. The indoor subsystem includes an indoor fan, an indoor air supply outlet, an indoor return air inlet, an indoor wet curtain apparatus and an evaporator. The outdoor subsystem includes an outdoor fan, a fluorine pump condenser, a liquid cooling dry cooler, a compressor, a fluorine pump, an expansion valve, and an outdoor wet curtain apparatus.

Abstract: An embodiment of the present disclosure provides a compound evaporative cooling tower and a data center, relating to the field of cooling tower technology. The compound evaporative cooling tower includes an air-inlet grille, a precooling module, a first spray module, a cooling module, a direct evaporative heat exchanger, a second spray module, a water collector, and an outdoor fan. The precooling module is arranged on an inner side of the air-inlet grille. The first spray module is arranged above the precooling module, and the second spray module is arranged above the direct evaporative heat exchanger. The cooling module is arranged below the direct evaporative heat exchanger and includes a plurality of cooling sub-modules.

Abstract: Provided are a modified mesenchymal stem cell and culture supernatant thereof, and a pharmaceutical composition comprising said cell or culture supernatant thereof. The mesenchymal stem cell is capable of expressing: (1) a first protein, which is selected from FGF21 or a variant thereof, or a first fusion protein comprising the FGF21 or the variant thereof and (2) a second protein, which is selected from GLP-1 or a variant thereof or a second fusion protein comprising the GLP-1 or the variant thereof. Also provided is the use of the modified mesenchymal stem cell and culture supernatant thereof, and the pharmaceutical composition comprising said cell or culture supernatant thereof in the treatment of metabolic diseases and in the preparation of a medicament for treating metabolic diseases.

Abstract: Embodiments of the present disclosure provide an air-conditioning system for a data center computer room and a control method thereof, belonging to the technical field of heat dissipation of the data center computer room. The system includes an indoor evaporation circulation loop and an outdoor cooling circulation loop, where the indoor evaporation circulation loop includes an evaporator and an indoor side heat exchange fan. The outdoor cooling circulation loop includes the evaporator, an outdoor side heat exchange fan, a wet-film cooling cooler, a condenser, an intercooler, a low-pressure stage compressor, a high-pressure stage compressor, a one-way valve, and a refrigerant pipeline. The system has good refrigeration effect, can accurately adjust temperature of the data center computer room and save energy.

Abstract: Embodiments of the present disclosure provide a cooling dispensing unit for a data center and a data center machine room, belonging to the field of liquid cooling technology. The cooling dispensing unit for the data center includes an outer box and components in the outer box, where the components in the outer box include a heat exchange component, a first cooling liquid pipeline, a second cooling liquid pipeline, and a canned motor pump. The heat exchange component is connected to a tank of the data center through the first cooling liquid pipeline and is connected to an external refrigeration device through the second cooling liquid pipeline. The canned motor pump is installed on the first cooling liquid pipeline and is configured to convey the cooling liquid in the first cooling liquid pipeline.

Abstract: The present disclosure discloses a liquid-cooled heat exchange system. An internal circulation loop at least includes an internal liquid inlet pipeline, an internal liquid return pipeline and a region to be heat-dissipated, a liquid outlet of an internal channel is communicated with a liquid inlet of the region to be heat-dissipated through the internal liquid inlet pipeline, and a liquid outlet of the region to be heat-dissipated is communicated with a liquid inlet of the internal channel through the internal liquid return pipeline. An electrically-controlled regulating valve is arranged at a liquid inlet of an external channel. A pump body is connected in series to the internal liquid inlet pipeline or the internal liquid return pipeline, a first temperature sensor is arranged at the liquid outlet of the region to be heat-dissipated, and a second temperature sensor is arranged at the liquid outlet of the internal channel.

Abstract: The present disclosure discloses a liquid cooling heat exchange device and a data center. The liquid cooling heat exchange device at least includes a box body, a heat exchange component, a pump body, a filtering component, and a control box. The heat exchange component is provided with an internal liquid inlet, an internal liquid outlet, an external liquid inlet, and an external liquid outlet. The heat exchange component is positioned between the pump body and the filtering component, and the control box is positioned directly above the pump body or the filtering component. The internal liquid inlet is communicated with one end of an internal liquid return pipeline, the pump body is connected in series to the internal liquid return pipeline, the internal liquid outlet is communicated with one end of the internal liquid inlet pipeline, and the filtering component is connected in series to the internal liquid inlet pipeline.

Abstract: The present disclosure discloses a cooling system, a control method and a data center computer room. The cooling system includes an evaporative cooling module, an oilless centrifugal compressor, a condensing module, a circulating pump module, and a throttling module. A first output end of the evaporative cooling module is connected to an input end of the oilless centrifugal compressor, an output end of the oilless centrifugal compressor is connected to an input end of the condensing module; an output end of the condensing module is connected to an input end of the circulating pump module, an output end of the circulating pump module is connected to an input end of the throttling module; and an output end of the throttling module is connected to an input end of the evaporative cooling module, and a second output end of the evaporative cooling module leads to an air supply channel.

Abstract: The present disclosure discloses a classified heat dissipation system including an accommodating area, a group to be heat dissipated, an air cooling device, and a liquid cooling device. A top end of the accommodating area is provided with a thermal sandwich channel. The group to be heat dissipated is installed in the accommodating area, the group to be heat dissipated includes at least two device groups, a thermal channel is surrounded between the at least two device groups, and the thermal channel is communicated with the thermal sandwich channel, where each of the at least two device groups has rest of heating sources and a plurality of primary heating sources. The air cooling device conveys cold air into the accommodating area, and the cold air enters the thermal sandwich channel through the device group and the thermal channel. The liquid cooling device is in contact with the primary heating sources.

Abstract: The present disclosure discloses a combined air-cooling and liquid-cooling refrigeration system and a data center, where the combined air-cooling and liquid-cooling refrigeration system includes a closed area, a combined device group, and a circulating liquid-cooling system. The combined device group and the circulating liquid-cooling system are installed in the closed area. The combined device group includes a first device group and a second device group, and a closed thermal channel is formed between the first device group and the second device group. The first device group and the second device group each include a plurality of air cooling devices and a plurality of heating devices. The circulating liquid-cooling system is connected to primary heating sources of the plurality of heating devices, and the plurality of air cooling devices refrigerate hot air discharged from the closed thermal channel.

Abstract: The present disclosure discloses a cold plate type data center device and a data center, which may at least include a cabinet, a heat transfer component, a circulation branch, a circulation component and a detachable mechanism, where a heat dissipation element is arranged in the cabinet. One end of the heat transfer component is in contact with the heat generating spot of the heat dissipation element, and other end of the heat transfer component passes through the cabinet and is positioned in a circulation cavity in the circulation branch. The circulation branch is communicated with the circulation component, such that a refrigerant in the circulation component flows through the circulation branch. The detachable mechanism connects the circulation component to the cabinet, and hermetically connects the circulation branch to the other end of the heat transfer component.

Abstract: A data management method comprises a first processing node that obtains a secure storage key based on a first external keying material corresponding to the first processing node, encrypts data corresponding to an application program in the first processing node, and sends encrypted data to a second processing node. The second processing node obtains a secure storage key based on a second external keying material corresponding to the second processing node, and decrypts the encrypted data that corresponds to the application program and that is sent by the first processing node. The second external keying material is the same as the first external keying material, whereby the second processing node and the first processing node may obtain a same secure storage key, and the second processing node may successfully decrypt the encrypted data that corresponds to the application program and that is sent by the first processing node.

Abstract: Embodiments of the present disclosure provide a server cabinet power backup system and a testing method thereof. In a self-test process of the power backup unit, the battery management module may be configured to: control the battery pack to supply power to the self-test resistor to discharge the battery pack, control the battery pack to be charged after the battery pack is discharged, and collect a charge and discharge parameter of the battery pack, and the battery management module may be further configured to: determine attenuation performance of the power backup unit according to the charge and discharge parameter of the battery pack.

Abstract: A refrigeration system and refrigeration method for a data center are disclosed. The refrigeration system includes: a first heat exchanger disposed on a back plate of an indoor cabinet of the data center, and a phase-change heat-exchange cooling tower disposed outdoor of the data center. The first heat exchanger and the phase-change heat-exchange cooling tower are communicated by a secondary refrigerant delivery pipeline. The phase-change heat-exchange cooling tower transfers heat carried in the secondary refrigerant into air and condenses the secondary refrigerant to a liquid again; the secondary refrigerant employs a phase-change heat-exchange working medium. An air pump is disposed in the phase-change heat-exchange cooling tower and on a by-pass of the secondary refrigerant delivery pipeline to pressurize the secondary refrigerant in gas-state delivered in the secondary refrigerant delivery pipeline to increase the condensing pressure for condensing the secondary refrigerant to a liquid again.

Abstract: A cooling system, including a first refrigeration medium, a first evaporator, a first condenser, and an all-condition cooling tower. The first evaporator is installed in a to-be-cooled space, the first evaporator is connected to the first condenser, an installation position of the first condenser is higher than an installation position of the first evaporator; the first condenser is connected to the all-condition cooling tower, and the all-condition cooling tower is disposed outside the to-be-cooled space, the all-condition cooling tower is used for providing the first condenser with a cold source for cooling the first refrigeration medium in a gaseous state.

Abstract: Embodiments of the present disclosure provide a server cabinet power backup system and a testing method thereof. In a self-test process of the power backup unit, the battery management module may be configured to: control the battery pack to supply power to the self-test resistor to discharge the battery pack, control the battery pack to be charged after the battery pack is discharged, and collect a charge and discharge parameter of the battery pack, and the battery management module may be further configured to: determine attenuation performance of the power backup unit according to the charge and discharge parameter of the battery pack.

Abstract: A liquid-cooled server chassis includes: a case; one or more liquid-cooling modules, each liquid-cooling module including a housing, a gas outlet valve, and a liquid return valve, wherein the gas outlet valve and the liquid return valve are opened during operation of the liquid-cooling module, and the liquid-cooling module accommodates a single server and is filled with coolant during operation; a connector configured to connect the liquid-cooling module to a power source; and a circulation portion including an gas outlet pipe, a liquid return pipe, a vapor processing part, and a liquid collecting part.

Abstract: A cooling system for a data center includes: at least one liquid-cooling heat exchanger disposed above each of the integrated circuit boards to dissipate heat from a first heat source disposed on the integrated circuit board through an internal circulation coolant in the liquid-cooling heat exchanger; a liquid-cooling distributing device comprising a first pipeline in communication with the liquid-cooling heat exchanger, a second pipeline in communication with a first cooling tower, and a heat exchanger configured to cool the internal circulation coolant from the liquid-cooling heat exchanger to a first temperature through an external circulation coolant from the first cooling tower; and the first cooling tower configured to cool the external circulation coolant supplied via the second pipeline to the second temperature, wherein the first temperature is higher than the second temperature. As a result, energy consumption can be reduced and chip-level cooling can be achieved.

Abstract: A cooling system of a data center computer room and a data center are provided. A specific embodiment of the system comprises: a liquid cooling system, including a liquid cooling cabinet, a heat exchanger forming a first circulation loop with the liquid cooling cabinet, and a cooling tower forming a second circulation loop with the heat exchanger; and a radiant cooling system, including a water pipe absorbing radiant heat in the data center computer room, a water chilling unit forming a third circulation loop with the water pipe, and a cooling tower forming a fourth circulation loop with the water chilling unit. The embodiment has improved the cooling efficiency of the data center computer room.