Phase-change working substance volume changing measurement mechanism for simulating abyssal environment

Abstract

The invention provides a measurement device for phase transition working medium volume change, which can simulate the environment of deep sea and belongs to the technical field of ocean engineering material measurement. The invention comprises a main body, a liner, an air relief plug, a pressure gauge, a thermoelectric couple, a supplement water valve, a temperature control unit, a lever system for simulating deep sea pressure and a heat pump system for simulating deep sea temperature. By the heat pump system, a pressure-resisting coil can play the functions of an evaporator and a condenser and simulate the temperature environment of deep sea; by the lever system, a plunger piston can pressurize the water in the main body and simulate the pressure environment of deep sea. By measuring the volume change of the water in the main body, the volume change of working medium in the liner caused by different pressure and temperature can be work out; the measuring device can simulate the environment of deep sea with utmost 1000 meters below the sea level. The measuring device is the accurate and reliable measuring device which can be popularized for application and has significant scientific value and social benefit.

Description

technical field [0001] The invention relates to a measuring device for volume change of phase-change working medium, in particular to a measuring device for volume change of phase-change working medium for simulating deep-sea environment, and belongs to the technical field of marine engineering material measurement. Background technique [0002] The underwater vehicle driven by ocean thermal energy and the phase change working medium as the working medium of the power device can extract the energy required for long-term cruising in the sea from the ocean without the help of its own energy source. It is a kind of underwater vehicle with broad application prospects. Under the vehicle, the dynamic performance of the device greatly depends on the performance of the phase change working medium, especially the volume change caused by the different pressure and temperature environments at different seawater depths. At present, there is no device that can provide a test environment ...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of the prior art and solve the measurement of the volume change of the phase change working medium in the power system of the underwater vehicle under the deep sea pressure and temperature environment, the present invention provides a volume change measurement device for the phase change working medium that simulates the deep sea environment

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