Test device for automatic chemical reactor shutdown system and test method thereof

Abstract

The invention discloses a test device of an automatic chemical reactor shutdown system and a test method thereof. The test device provided by the invention comprises: a reactor pressure vessel, whichis connected with an inlet and an outlet of the reactor pressure vessel to form a primary loop system of a circulation loop; and a pressure gauge and a thermometer, which are arranged at the inlet andoutlet of reactor pressure vessel. The primary loop system comprises a boric acid eliminating device, a steam generator, a main coolant pump and a flowmeter which are sequentially connected; the number of the inlets and outlets of the reactor pressure vessel is more than two groups; the number of the primary loop systems is the same as the number of the inlets and outlets of the reactor pressurevessel; one of the primary loop systems is used for connecting a passive automatic chemical reactor shutdown system, and one of the primary loop systems is connected with a voltage stabilizer; and a reactor core of the reactor pressure vessel adopts an electric heating element rod to simulate a nuclear fuel rod. A research result obtained by the invention can be used for verification and optimization of an automatic chemical reactor shutdown system of a nuclear reactor, to improve the inherent safety performance of the nuclear reactor.

Description

technical field [0001] The invention relates to the field of nuclear reactor safety, in particular to a test device and a test method for an automatic chemical shutdown system. Background technique [0002] The expected transient ATWS without emergency shutdown means that although the thermal parameters such as the temperature and pressure of the primary or secondary loop of the nuclear reactor exceed the protection threshold, the control rod assembly does not fall due to rod sticking and other reasons, and the reactor does not have an emergency shutdown. The expected transient of the heap. [0003] When an ATWS accident occurs in the reactor, the automatic chemical shutdown system uses a passive method to inject concentrated boron water into the core to realize emergency shutdown and protect the safety of the reactor. Therefore, the design, test verification, optimization and engineering application of the automatic chemical shutdown system are of great significance to the...

AI Technical Summary

Problems solved by technology

[0002] The expected transient ATWS without emergency shutdown refers to that although the thermal parameters such as temperature and pressure of the primary or secondary loop of the nuclear reactor exceed the protection threshold, the control rod assembly does not fall due to sticking or other reasons, and the reactor does not have an emergency shutdown. expected transient of the heap

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