Testing system for double-side refrigerant type double-pipe heat exchanger

The utility model discloses a testing system of a double-side refrigerant type double-pipe heat exchanger. The testing system comprises an evaporation constant-temperature water tank and a condensation constant-temperature water tank which is symmetrically arranged with the evaporation constant-temperature water tank, the evaporator is arranged on the evaporation constant-temperature water tank; the condenser is arranged on the condensation constant-temperature water tank; a first pressure sensor and a first temperature sensor; a second pressure sensor and a second temperature sensor; a third pressure sensor and a third temperature sensor; a fourth pressure sensor and a fourth temperature sensor; and the PLC control system is connected with the evaporation constant-temperature water tank, the condensation constant-temperature water tank, the first pressure sensor, the second pressure sensor, the third pressure sensor, the fourth pressure sensor, the first temperature sensor, the second temperature sensor, the