Heat leakage test device and usage method thereof

Abstract

The present invention discloses a heat leakage test device and a usage method thereof. The device concretely comprises a first heat insulation container, a second heat insulation container, a liquid medium source, a gaseous medium source, a liquidometer and a flowmeter. The first heat insulation container is arranged in the second heat insulation container, a valve cover assembly of a low-temperature valve is placed in the second heat insulation container, and the liquid medium source provides a liquid medium to the first heat insulation container; the gaseous medium source provides a gaseousmedium to the first heat insulation container, and the flowmeter is communicated with the first heat insulation container. The heat leakage test device also comprises a temperature sensor used for measuring the temperature of the fluid flowing from the first heat insulation container to the flowmeter and a pressure sensor used for measuring the pressure of the fluid flowing from the first heat insulation container to the flowmeter, and the temperature sensor and the pressure transducer are both connected with a processor and are used for transmitting the detected temperature and pressure signals to the processor for the exchange calculation. The heat leakage test device and the usage method thereof provided by the present invention can effectively test the heat leakage amount of the low-temperature valves.

Description

technical field [0001] The invention relates to the technical field of low temperature equipment testing, in particular to a heat leakage testing device and a method for using the same. Background technique [0002] Leakage heat refers to the heat transferred from the surrounding environment to the medium in the cryogenic equipment per unit time. For cryogenic valves, the leakage heat refers to the heat transferred from the surrounding environment to the operating medium in its flow channel through the cryogenic valve per unit time. In many existing engineering technologies, a large amount of cryogenic liquid is required to meet the needs of production and scientific research, and the cryogenic valve is a commonly used and important component in many cryogenic equipment, and its operating environment temperature is lower than normal temperature or far away. Lower than normal temperature, which requires cryogenic valves to be able to withstand the low temperature in the worki...

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Problems solved by technology

At present, there is no relevant low-temperature valve heat leakage test device that can accurately measure the heat leakage, and most of them obtain simulation results through software simulation.

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