Unlock instant, AI-driven research and patent intelligence for your innovation.

A test device for functional verification of reactor pressure vessel liquid level detectors

A technology of liquid level detectors and pressure vessels, which is applied in reactors, nuclear reactor monitoring, nuclear power generation, etc., can solve problems such as fuel cladding heat transfer deterioration, core melting, accident deterioration, etc., and achieve reliable structure, pressure resistance and The effect of high temperature resistance and cost reduction

Active Publication Date: 2018-11-02
NUCLEAR POWER INSTITUTE OF CHINA
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After a serious accident in a nuclear power plant, the reactor core lost a large amount of coolant in the primary circuit. When the safety injection water flow rate of the safety injection system is not enough to compensate for the loss of coolant flow, the reactor core will be exposed. After the core is exposed, the fuel cladding will pass The thermal conditions deteriorated sharply, and core melting may occur, making the accident worse

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A test device for functional verification of reactor pressure vessel liquid level detectors
  • A test device for functional verification of reactor pressure vessel liquid level detectors

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as figure 1 , figure 2As shown, a test device for functional verification of a reactor pressure vessel liquid level detector includes a test body 1 and a test circuit, the test circuit provides conditions for the test body 1 to meet the test, and the test circuit includes a pressure safety system, water replenishment system and pressurization system, the pressure safety system communicates with the test body 1 through pipelines, and provides the required pressure for the test body 1, and the water supply system and the pressurization system communicate with the pressure safety system through pipelines, providing the test body 1 and the whole The test circuit provides the water flow required for the test, the test body 1 is provided with an electric heating element 5 and a power adjustment device, and the test body 1 is provided with a platinum-rhodium alloy wire 4; the test body 1 includes a pressure vessel 110, The two ends of the pressure vessel 110 are respect...

Embodiment 2

[0067] Such as figure 1 , figure 2 As shown, this embodiment is based on Embodiment 1, and the test body 1 communicates with the balance tank 2 in parallel through a pipeline.

[0068] When carrying out the test, the working power DC power supply of the test element 3 is monitored by the attached figure 2 The conductivity change data of the platinum-rhodium alloy wire 4 in the test body 1, combined with the attached figure 2 The water level display of the balance tank 2 in the test is verified to monitor the water level in the test body 1, and the liquid level data measured by the test element 3 is compared, and the liquid level data measured by the test element 3 can be effectively verified. , to ensure the accuracy of liquid level measurement data.

[0069] When performing data comparison, the electrical conductivity change through the platinum-rhodium alloy wire 4 and the liquid level change in the balance tank 2 are compared with the measurement data of the test elemen...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a test device for functional verification of a reactor pressure vessel liquid level detector, which includes a test body and a test loop. The test loop includes a pressure safety system, a water supply system and a pressurization system. The pressure safety system communicates with the test body through a pipeline. Provide the required pressure for the test body, the water supply system and the pressurization system are connected with the pressure safety system through the pipeline, and provide the water flow required for the test for the test body and the entire test circuit. The test body is equipped with electric heating elements and power adjustment equipment. Platinum-rhodium alloy wires are arranged in the body. The invention can simulate the high-temperature and high-pressure conditions of the reactor, and can meet the function verification requirements of the test object. The platinum-rhodium alloy wire described in the invention can measure the liquid level in the test body in real time, and compare the measured data with the pressure vessel liquid level detector. The measured data are compared to realize the functional verification of the pressure vessel liquid level detector.

Description

technical field [0001] The invention relates to the related technical field of reactor pressure vessel liquid level detectors, in particular to a test device for functional verification of reactor pressure vessel liquid level detectors. Background technique [0002] After the Fukushima nuclear accident, the safety of nuclear power has been increasingly concerned by the world. In the field of nuclear safety technology, the research on severe accidents in nuclear power plants, especially the deterioration and mitigation of accidents caused by core exposure after a large loss of primary circuit coolant in nuclear power plants has been increasing. Development, a new type of reactor pressure vessel liquid level detector came into being. After a serious accident in a nuclear power plant, the reactor core lost a large amount of coolant in the primary circuit. When the safety injection water flow rate of the safety injection system is not enough to compensate for the loss of coolant...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G21C17/00
CPCG21C17/001Y02E30/30
Inventor 朱志锋谢旭聂常华朱传华郑华李朋洲
Owner NUCLEAR POWER INSTITUTE OF CHINA