Abstract: Embodiments of the present disclosure provide a multi-split air-conditioning system and a method for air conditioning. The system includes a cold source module, a pump driving module and an indoor module connected to a loop through a pipeline, where the cold source module includes a plurality of cold source submodules. Outlet pipelines of the plurality of cold source submodules are connected to an inlet pipeline of the pump driving module. The indoor module includes a plurality of indoor terminals. An outlet pipeline of the pump driving module is connected to inlet pipelines of the plurality of indoor terminals. Outlet pipelines of the plurality of indoor terminals converge and merge, and then are connected to an inlet pipeline of the cold source module.

Abstract: The present disclosure discloses a refrigeration system and a device provided with a refrigeration apparatus. The refrigeration system includes an enclosed space and at least one first heat generating device installed in the enclosed space. An end of the first heat generating device is connected to a drainage apparatus and two heat exchange apparatuses. The drainage apparatus absorbs hot air generated by the first heat generating device to form a hot air flow, and causes the hot air flow to flow through the heat exchange apparatus, such that the heat exchange apparatus carries out heat exchange to form a cold air flow and discharges the cold air flow into the enclosed space.

Abstract: The present disclosure discloses a power distribution room and a refrigeration system. The power distribution room has an accommodation space internally provided with a first heat generating device. The first heat generating device has a vent, and a refrigeration device is connected to the vent of the first heat generating device. The refrigeration device includes a heat exchange apparatus and an induced draft apparatus, where the heat exchange apparatus is positioned between the induced draft apparatus and the vent. The induced draft apparatus is configured to generate an airflow flowing through the first heat generating device to generate hot air transmitted to the heat exchange apparatus, such that the heat exchange apparatus carries out heat exchange to convert the hot air into cold air and discharges the cold air into the accommodation space.

Abstract: Embodiments of the present disclosure provide a fastener for a server cabinet and the server cabinet. The fastener for the server cabinet includes an upper limit member, a fastening spring, a lower limit member, and a fastening pin rod. The present disclosure relates to the field of server cabinet technology. The fastener for the server cabinet provided in the present disclosure is small in volume, compact and reliable in structure, stable in fastening, and suitable for fastening connection in narrow space. The fastener may easily achieve fastening or unfastening operation by rotating 90° without restriction of a rotation direction, which is fast in installation and convenient for disassembly and assembly.

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: 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: 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: An electronic device receives a first user operation. The first user operation is used to request to install a first plug-in related to a first application, the first application includes a first plug-in framework and at least one plug-in associated with the first plug-in framework, a major version number of each of the at least one plug-in is the same as a major version number of the first plug-in framework, and the first plug-in is different from the at least one plug-in. The electronic device receives the first plug-in from a server. The electronic device detects whether a major version number of the first plug-in is the same as the major version number of the first plug-in framework. If yes, the electronic device installs the first plug-in.

Abstract: A self-calibration detection device and a temperature demodulation method oriented to a fiber Raman temperature sensing system. The self-calibration detection device comprises a fiber Raman thermodetector, thermostatic baths, a multi-mode sensing fiber, and a multi-mode reflector. The fiber Raman thermodetector comprises a pulsed laser whose output end is connected to the input end of a WDM. Two output ends of the WDM are respectively connected to input ends of a first and second APDs. Output ends of the first and second APDs are respectively connected to input ends of a first and second LNAs. Output ends of the first and second LNAs are connected to the input end of a data acquisition card whose output end is connected with the input end of a computer. The temperature demodulation method can solve the problems of low temperature measuring accuracy, lower temperature measurement stability and low temperature measurement efficiency.

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 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 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 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.