FIELD: refrigeration and cooling equipment, particularly heat pumps, cooling machines and heat converting means.
SUBSTANCE: heat pump comprises compression device, compression cylinder, adjacent vessel, working agent circulation pump, heat-exchangers for medium to be cooled and medium to be heated, shutoff valves forming closed loop for working agent circulation. The adjacent vessel is made as a cylinder divided with piston located in independent heat-exchanger. The first compression cylinder, the first shifting choke, adjacent vessel, the second shifting choke, the second compression cylinder, the third and the forth shifting chokes connected in parallel are included in the loop. Two oil circulation high-pressure and low-pressure pumps are connected in parallel between the third and the forth shifting chokes. Check valves are linked with outlets of oil circulation pumps. One part of loop space including interiors of adjacent vessel, the first and the second shifting chokes and part of compression cylinder volumes is filled with working agent. Another part of loop space including interiors of circulation pumps and the third and the forth shifting chokes and another parts of compression cylinder volumes is filled with oil. Compression vessel heat-exchangers are built in circulation loop in which medium to be cooled is circulated. Adjacent vessel heat-exchanger is included in loop in which medium to be heated is circulated. The loops are filled with heat-carrier medium.
EFFECT: increased heating factor.
1 dwg
