| 摘要 |
FIELD: heat engineering. ^ SUBSTANCE: heat pump comprises compressor, condenser, expander, evaporator, and heat exchanger. The inlet of the first space of the heat exchanger is connected with the outlet of the evaporator, and the outlet of the heat exchanger space is connected with the compressor. The inlet of the second space of heat exchanger is connected with the circuit between the condenser and expander through the control valve, and the outlet of the second space is connected with the circuit between the three-position control valve and expander. The expander is made of a throttle. The heat pump is provided with the temperature gauge mounted between the compressor and first space of the heat exchanger and is connected with the three-position control valve through controller. ^ EFFECT: enhanced reliability and stability of operation. ^ 1 dwg |
