Pressure test device for refrigerating system pipeline

The utility model discloses a pressure test device for a refrigerating system pipeline, which comprises a gas control system, a liquid pressurization system, a computer data acquisition system and a pipeline connection part, and is characterized in that the gas control system comprises an electricity/gas conversion device; the liquid pressurizing system is provided with a pneumatic pressurizing pump; the computer data acquisition system comprises a data acquisition card, a pressure sensor and a data recording and processing system; and the data acquisition system is connected with the electricity/gas conversion device and is also connected with the pressure point of the measured piece. Through stepless regulation of output hydraulic pressure and reasonable test logic application, numerical values of various limiting conditions in practical application are simulated, experimental data of short-time curve change conditions are obtained, the pressure resistance physical characteristics of a product pipeline are