A Computer-Based Electric Heating Rod Power Control System
An electric heating rod and power control technology, applied in the control/adjustment system, adjustment of electrical variables, instruments, etc., can solve the problems of difficult processing, lack of flexibility, abnormal structure of heating pipe, etc., to achieve rapid response and strengthen experimental research methods , The effect of changing power is convenient
Active Publication Date: 2015-08-26
CHINA NUCLEAR POWER ENG CO LTD
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Problems solved by technology
However, the limitation of this experimental method is that due to the irregular shape of the heating tube, its processing is difficult, and the shape of the power distribution that this heating tube can simulate is solidified, which makes the experiment inflexible
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[0016] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0017] Such as figure 2 As shown, a computer-based electric heating rod power control system includes a power amplifier circuit 4 connected to a power supply 5, the power amplifier circuit 4 is connected to a computer 7 of the control system, and has several power output ports 6, each power The output port 6 is connected with a wire drawn from a resistance wire of an electric heating core block of the electric heating rod.
[0018] The structure of the electric heating rod is as figure 1 As shown, it includes several electric heating core blocks 2 arranged in a heat conduction sleeve 1 . The electric heating core block 2 is provided with a resistance wire 3 inside, and a pair of wires are drawn from both ends of the resistance wire 3 to the outside of the heat conduction sleeve 1 .
[0019] When this control system is applied to the experiment, eac...
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The invention belongs to heat state experiment simulation devices used for reactor experiment research and particularly relates to an electric heating rod power control system based on computer control. The system comprises a power amplification circuit connected with a power supply, the power amplification circuit is connected with a computer of a control system and is provided with a plurality of power output ports, each power output port is connected with a wire led out from a resistance wire of an electric heating core block of an electric heating rod, and the electric heating rod comprises a plurality of electric heating core blocks arranged abreast in a heat conduction sleeve. The system utilizes a computer to independently control voltage loaded on each electric heating core block, enables the core block type electric heating rod to have the characteristics of being quick in response and capable of changing power conveniently, achieves accurate simulation of various nuclear feedback phenomena of fuel rod power in reality and provides a favorable foundation for strengthening nuclear reactor experiment research means.
Description
technical field [0001] The invention belongs to a thermal state experiment simulation device used for reactor experiment research, in particular to a computer-based electric heating rod power control system. Background technique [0002] The non-deviation of nucleate boiling (DNB) on the surface of fuel rods is one of the important safety limits that need to be ensured in the safety design process of nuclear power plants. As a prerequisite, it is necessary to evaluate the critical heat flux of the fuel cladding surface under various typical operating conditions ( CHF) for experimental determination. During the operation of nuclear power plants, the surface of the fuel rods is often not uniformly heated along the axial direction, and the power distribution along the axial direction of the fuel rods has a great influence on the DNB phenomenon, so it is necessary to simulate the fuel in the reactor by means of electric heating in the experiment. A function of the power distrib...
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IPC IPC(8): G05F1/66
Inventor 郭强王辉雷宁博刘建平张慧敏孙婧陈巧艳杨长江汪俊元一单
Owner CHINA NUCLEAR POWER ENG CO LTD