Heat exchange amount measurement device used in pool boiling experiment research and measurement method thereof

Abstract

The invention discloses a heat exchange amount measurement device used in pool boiling experiment research and a measurement method thereof, is suitable for a heat exchange measurement technology of pool boiling outside a pipe and especially relates to a heat exchange amount measurement technology of a physical process in which condensation is generated in the pipe and pool boiling is generated outside the pipe, and two sides have phase changes. The measurement device can automatically supplement water for an experiment water tank so as to maintain a stable liquid level. Through measuring a water supplementing flow, pressure, a temperature and other signals, an enthalpy difference of steam generated through pool boiling and water supplementing is used to multiply by the water supplementing flow so as to calculate and acquire a pool boiling heat exchange amount. Four modules of an experiment module, an automatic water supplementing module, a measurement module and a steam recovery module are included. A technology problem of measuring the heat exchange amount in the pool boiling experiment research is solved, especially for the heat exchange amount measurement of the physical process in which condensation is generated in the pipe and pool boiling is generated outside the pipe, and two sides have phase changes. The device and the method can be effectively applied to correlation industrial fields of chemical engineering, pharmacy and the like and can be also applied to a heat exchange amount measurement process in which a heat working medium of an inner side of the pipe is high-temperature and high-pressure working medium condensation.

Description

technical field [0001] The invention relates to the technical field of heat transfer measurement, in particular to a heat transfer measurement device used in the experimental research of pool boiling outside a tube, especially suitable for the heat transfer measurement of a physical process in which phase transitions exist on both sides of the inner tube condensation tube and outer pool boiling technology. [0002] technical background [0003] Pool boiling phenomenon widely exists in various industrial fields, such as chemical industry, pharmaceutical and so on. After the Fukushima nuclear accident, countries all over the world have paid more and more attention to the research on nuclear safety, an important topic, so the passive safety system, which is the main technology of the third generation nuclear power plant, came into being. In the passive safety system, the important heat transfer mechanism is the condensation of high-temperature and high-pressure steam in the tub...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of heat transfer measurement for pool boiling experimental research in view of the relative lack of pool boiling heat transfer measurement technology, especially the technical status of the inability to accurately measure the heat transfer heat transfer process in the pool boiling process outside the condensation tub

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