Ultralow-temperature single-machine two-stage screw type heat pump system

• Main Authors: LU LEI, LI ZHIPENG, GU JUNQIANG, LYU YANBO, YANG HONGBIN, REN YANPING
• Format: Patent
• Language: Chinese; English
• Published: 07.06.2024
• Subjects: BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; WEAPONS

The utility model relates to an ultralow-temperature single-machine two-stage screw type heat pump system which comprises a heating circulation system, a reverse defrosting circulation system and an oil cooling circulation system. Compared with a conventional air source heating system, the ultra-low-temperature single-machine two-stage screw type heat pump system capable of efficiently heating at the ultra-low temperature has better heating capacity and performance coefficient during low-temperature heating. 本实用新型涉及一种超低温单机双级螺杆式热泵系统，包括制热循环系统、反向除霜循环系统及油冷循环系统。本实用新型可在超低温下进行高效制热的热泵系统，相较于常规的空气源供暖系统，超低温单机双级螺杆式热泵系统在低温制热时有更好的制热能力与性能系数。