DEVICE FOR REFRIGERATING AND AIR-CONDITIONING WITH DOUBLE PIPE

摘要

PURPOSE: A refrigerating and air conditioning system having a double tube is provided to vaporize simply in an evaporator by expanding high temperature and high pressure condensed refrigerant liquid to low temperature and low pressure, and to improve efficiency of a system with simple structure by inserting a capillary tube to a gas pipe between the evaporator and a compressor. CONSTITUTION: A refrigerator and an air conditioner are composed of an evaporator(1), a compressor(2), a condenser(3) and an expansion unit(4). The compressor, the condenser and the expansion unit are united with one unit and installed in an outdoor unit, and the evaporator is mounted in an indoor unit. The indoor unit is connected to the outdoor unit by a low-temperature and low-pressure gas mixing pipe and a low-temperature and low-pressure gas pipe. The noise is reduced, and the installation place is used efficiently with placing the expansion unit near the evaporator and with inserting the expansion unit and a high-temperature and high-pressure liquid pipe to the low-temperature and low-pressure gas pipe between the compressor and the evaporator.