A high-temperature and high-pressure water-gas fluid effect simulation device

Abstract

The invention belongs to the technical field of reactor simulation, and discloses a high-temperature high-pressure water and steam fluid effect simulation device. The device comprises a deionized water preparation and oxygen control system, a heating and experiment system and a data acquisition and control system, wherein the deionized water preparation and oxygen control system and the heating and experiment system are communicated through stainless steel pipe fittings, pipe joints and valves to form a medium circulating flow loop; the data acquisition and control system gathers data signalsacquired by a test meter and a probe arranged at each place of the loop to a computer through a communication adapter card, and monitoring and control on the loop are realized. According to the high-temperature high-pressure water and steam fluid effect simulation device, the heating efficiency is greatly improved through a new heating mode, the energy consumption is reduced significantly, and thesize of the device is reduced; and through matched use among an atomizing nozzle, hygrometers, a thermocouple and an observation window, research on the water / stream phase transition processes and states is realized, and research on adjoint heat transfer efficiency and a heat transfer deterioration law during the process is realized.

Description

technical field [0001] The invention belongs to the technical field of reactor simulation, in particular to a high-temperature and high-pressure water-gas fluid effect simulation device. Background technique [0002] Nuclear power and nuclear power plants mostly use pressurized water reactors. The heat transfer efficiency, heat transfer stability, and steam flow rate and state of the water circuit in the pressurized water reactor are crucial to the heat exchange of the reactor. The related water circuit thermal hydraulics Research is an essential work for the construction of nuclear energy facilities and is of great significance to the development of nuclear energy. Because it is difficult to conduct experiments on a full-scale reactor system, the prototype system is usually scaled down and modeled, and an experimental bench is built to conduct extensive thermal-hydraulic simulation research on the reactor system. For the study of the mutual influence of heat transfer and f...

AI Technical Summary

Problems solved by technology

However, these devices and related studies have not considered the influence of steam flow rate, steam state, and liquid water-steam phase state changes on heat transfer stability, and it is generally necessary to heat the experimental medium to a higher temperature (such as 700°C). The segmented heating method is adopted, which leads to the consumption of very high heat energy during the experiment, and the volume of the device is very large

Existing devices cannot be controlled remotely, and the safety of experimental operators cannot be guaranteed in a dangerous environment of high temperature and high pressure

[0003] To sum up, the problems existing in the existing technology are: the current high-temperature and high-pressure water circulation circuit simulation devices at home and abroad consume very high heat energy when the temperature gradient is 0-700 ° C, and in order to increase the heat exchange area and prolong the heat exchange time , generally increases the volume and length of the device, making the device very bulky

In addition, in the existing similar high-temperature and high-pressure water-air circulation loops, whether it is a high-temperature, high-pressure water oxidation device or a water corrosion loop, the steam flow rate is relatively low (almost quasi-static). The condition of the device has not been reported

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