| 摘要 |
Heat pump, where the vapour of the volatile fluid is compressed in two stages directly from the surface of the volatile fluid itself and not from the surface of the piston, consists of a bended, preferably cylindrical tube. The shape of the tube is almost like the capital greek letter PI , reversed and ends to two vertical hydrostatic columns (1, 12), which contain a volatile fluid, whilst at the base of the apparatus an adjustable piston is moving, increasing periodically the fluid of columns, the surfaces of which is compressing the vapour. After leaving the second stage through a non-return valve (9), the compressed vapour condenses in a snake-form tube; the condensate expands in a butterfly valve (13) and evaporates in an external heat exchanger which is connected to the first leg (1) of the bended tube, or directly in the first leg (1) of the bended tube. A heat exchanger may be provided in each leg (1, 12) of the bended tube. |
