Automatic control and linkage protection system for 300 MW nuclear main pump full-flow test bed

Abstract

The invention relates to an automatic control and linkage protection system for a 300 MW nuclear main pump full-flow test bed. A PLC is used as the core equipment for control, and the control of the PLC comprises the integral safety monitoring and the display and operation of equipment operation conditions, The control and safety interlocking of the machine pump lubricating oil system is achieved,and performing pressurization control and temperature reduction control on the test circulating water system; in the test process, the control system performs linkage control on the equipment according to preset linkage protection logic and specifications, the control requirements of equipment protection and equipment safety in the starting, running and stopping processes are guaranteed.

Description

Technical field: [0001] The invention relates to an automatic control and chain protection system of a 300MW nuclear main pump full-flow test bench. Background technique: [0002] Nuclear power has been recognized as a relatively economical, reliable, and clean energy source, and the reactor coolant pump (referred to as the nuclear main pump) for nuclear power plants is the heart of the nuclear island of the nuclear power plant. Providing sufficient flow of coolant can force the circulating coolant to pass through the nuclear reactor. The core and full-flow test bench can test all aspects of the performance of the nuclear main pump when it leaves the factory. The full-flow test bench for the nuclear main pump is constructed to simulate the actual conditions of high temperature and high pressure in the primary circuit of a nuclear power plant. The PLC main control system is also an important part of the test bench measurement and control system. It plays a central and dominan...

AI Technical Summary

Problems solved by technology

At present, other test benches or some power stations use traditional electrical manual control, and the interactive form is mostly operator button operation, which requires a series of operating procedures to be memorized by the human brain. This test bench has a low degree of automation, and the test process requirements are relatively strict. Therefore, in the test process, the operation is complicated, the labor intensity is high, the working environment is bad, the efficiency is low, the reliability is poor, and the problems caused by human factors are very serious. Therefore, the PLC chain control system is introduced into the test bench control system. Improve the degree of automation of the test bench and reduce the occurrence of human error

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