| 摘要 |
<p>The heat pump has a highly efficient recuperator (3) whose high-pressure-side is connected between expansion valve (10) and exit of condenser (1), and low-pressure side between outlet of evaporator (2) and compressor inlet. The fine-grained or stepless speed adjustment of compressor drive (5) in partial load operation is performed in small steps or in continuously variable manner. The speed controller is controlled by a temperature sensor (7) and/or a pressure sensor (6) in the high pressure portion of the refrigerant circuit. The high degree supercooling of the high-pressure condensate and higher superheating of the low pressure suction gas are performed in recuperator. The evaporator and heat source are completely decoupled down, so that the compressor limits are not exceeded and the dimensions of the compressor power are reduced by about 4/5 of recuperator performance.</p> |
