A heat loss test method for a thermal comprehensive test device

Abstract

The invention discloses a heat loss testing method of a thermal comprehensive test device, comprising the following steps: a. determining the heat loss test working condition, b. establishing the heat loss testing working condition, c. blocking the secondary circuit system and the waste heat discharge system 1. The cold source of the cold source simulation system, d, carry out the heat loss test, e, judge the heat balance state, the heat loss test method of the present invention is simple and reliable, and the heat loss power of the thermal engineering comprehensive test device is the main heat source under the heat balance state The sum of the heat source power of the simulator and the secondary heat source simulator, the heat loss test method of the present invention does not rely on the accuracy of low flow rate flow measurement, does not require high temperature measurement accuracy, does not require complex data processing, and has no cumulative error. The heat loss test power with high accuracy and reliability can be obtained.

Description

technical field [0001] The invention relates to the technical field of heat loss testing, in particular to a heat loss testing method of a thermal comprehensive test device. Background technique [0002] In the field of nuclear power technology, the thermal comprehensive test device must accurately simulate the nuclear reactor system and the prototype of the ad hoc safety system. The thermal boundary simulation is one of the core issues of the overall simulation. If the thermal boundary simulation is too distorted, even if the heat source is well obtained However, if the simulation is performed, the cooling capacity of the ad hoc safety system still has a large distortion, which means that the test results cannot be fed back to the prototype, and the effectiveness of the thermal comprehensive test cannot be guaranteed. Therefore, the thermal boundary must be accurately simulated, and the basis of thermal boundary simulation is to accurately obtain the heat loss power of the ...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the heat loss test method of the traditional thermal comprehensive test device is to measure the fluid flow rate and inlet and outlet temperature of each equipment one by one, then calculate the thermal power absorbed by the fluid in each equipment and find out the thermal power of all equipment. The total heat loss of the test device can be obtained by subtracting the total heat power from the power of the heat source. This test method is difficult to measure the temperature difference at low power levels and the flow rate at low flow rates, and the accuracy is poor. There is a certain error in the accumulation of heat loss power , low reliability, unable to meet the higher requirements of the thermal comprehensive test, the purpose of the present invention is to provide a heat loss testing method of the thermal comprehensive test device, including establishing the heat loss test conditions, blocking the cold source, controlling the power of the heat source , determining heat balance and other steps, the whole operation step does not depend on the flow rate, the accuracy of temperature measurement is not high, and no complicated data processing is required to obtain high-precision and reliable heat loss power, which solves the problem of thermal comprehensive test simulation Technical problems such as low level, low temperature measurement and low flow measurement difficulty and low accuracy

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