Heat-and-cold recovery system based on liquid cooling data center

An apparatus comprising a heat-and-cold recovery system and a liquid cooling data center, wherein the heat-and-cold recovery system is integrated into the liquid cooling data center, wherein the liquid cooling data center is provided with a computer-room liquid- cooling region and a computer-room air-cooling region, wherein

• a first circulating heat-exchange loop is formed by the computer-room liquid-cooling region and a coolant distribution unit, and a second circulating heat-exchange loop is formed by the coolant distribution unit and a first cooling tower, wherein a heat exchange is conducted by the first circulating heat-exchange loop and the second circulating heat-exchange loop;
• and
• a third circulating heat-exchange loop is formed by the computer-room air-cooling region and a compression water chiller group, and a fourth circulating heat-exchange loop is formed by the compression water chiller group and a second cooling tower, wherein a heat exchange is conducted by the third circulating heat-exchange loop and the fourth circulating heat-exchange loop,
• wherein the heat-and-cold recovery system comprises:
• a high-temperature heat pump,
• a pressure-less heat-storage tank,
• pressurized heat-storage tank,
• an absorption water chiller group, and
• a water cold-storage tank,
• wherein the high-temperature heat pump and the coolant distribution unit form a fifth circulating heat-exchange loop, and the fifth circulating heat-exchange loop conducts a heat exchange with the first circulating heat-exchange loop;
• the high-temperature heat pump and the pressure-less heat-storage tank form a sixth circulating heat-exchange loop, and the sixth circulating heat-exchange loop conducts a heat exchange with the fifth circulating heat-exchange loop, wherein the pressure-less heat-storage tank is provided with a hot-water output interface for outputting hot water to a hot-water user side;
• the hot-water output interface of the pressure-less heat-storage tank is further connected to the pressurized heat-storage tank through a first circulating pump set and a pipeline heater in sequence;
• and the pressurized heat-storage tank is configured to output steam;
• the pressurized heat-storage tank is further connected to the absorption water chiller group through a second circulating pump set and forms a seventh circulating heat-exchange loop with the pressure-less heat-storage tank through the absorption water chiller group, wherein the second circulating pump set is connected in parallel with the first circulating pump set;
• the absorption water chiller group and the computer-room air-cooling region form an eighth circulating heat-exchange loop, and the eighth circulating heat-exchange loop conducts a heat exchange with the seventh circulating heat-exchange loop;
• and
• the compression water chiller group is connected to a water cold-storage tank, and the absorption water chiller group is connected to the water cold-storage tank;
• and the water cold-storage tank is configured to store a cooling water from the compression water chiller group and the absorption water chiller group for heat exchange to the coolant distribution unit and/or the computer-room air-cooling region.