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A test device and test method for the dynamic performance of a pilot-operated steam release isolation valve for nuclear power

A testing device and dynamic performance technology, applied in mechanical valve testing and other directions, can solve the problems of high technical difficulty, low demand and usage, and high research and development costs, and achieve the effect of protecting safety, keeping cleanliness and measuring accuracy unaffected.

Active Publication Date: 2022-06-28
DALIAN UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the low demand and use of this equipment, high R&D costs, and high technical difficulties, there are few researches on this type of product in my country, and it is still blank.

Method used

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  • A test device and test method for the dynamic performance of a pilot-operated steam release isolation valve for nuclear power
  • A test device and test method for the dynamic performance of a pilot-operated steam release isolation valve for nuclear power
  • A test device and test method for the dynamic performance of a pilot-operated steam release isolation valve for nuclear power

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Embodiment Construction

[0037] The present invention will be described in more detail below in conjunction with the accompanying drawings

[0038] The overall structure of the isolation valve dynamic characteristics test device is as follows figure 1 and figure 2 As shown, the gas storage tank 3 and the single valve 1 are connected together by threaded connection, the upper end of the gas storage tank 3 and the safety valve 2 are connected together by stud bolts, and the right end of the gas storage tank 3 and the connecting pipe A4 are connected by stud bolts. At the same time, the right end of the connecting pipe A4 is connected with the gate valve 5 by studs, the right end of the gate valve 5 is connected with the connecting pipe B by studs, and the right end of the connecting pipe B6 is connected with the connecting pipe C11 by studs. The right end of the pipe C11 is connected with the flange A7 by bolts, the flange A7 is connected with the isolation valve 9 by studs, and the flange B12 is conn...

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Abstract

A test device and test method for the dynamic performance of a pilot-operated steam release isolation valve used in nuclear power belongs to the technical field of valve testing, and is mainly used to test the opening, discharge, and closing characteristics of a release isolation valve. The test device includes an air supply device, a quick start-stop device, an air pressure detection device, an isolation valve stem displacement detection device, a valve stem vibration measurement device, an isolation valve system, and a data acquisition system. The air supply device is used to supply air to the isolation valve, the quick start-stop device is used to control the opening and closing of the release isolation valve, and the air pressure detection device is used to measure the pressure of the gas pipeline, the outlet, inlet and upper valve cavity of the isolation valve. The isolation valve stem displacement detection device is used to detect the displacement change of the isolation valve stem. The valve stem vibration measurement device is used to detect the vibration characteristics of the isolation valve stem. The acquisition system is used to supply power to the sensor, send out PLC control signals, collect and process data. The device of the invention has simple structure and high data precision, and can provide good guarantee for testing the dynamic characteristics of the release isolation valve.

Description

technical field [0001] The invention belongs to the technical field of valve testing, and relates to a testing device and a testing method for the dynamic performance of a pilot type steam release isolation valve used in nuclear power plants. Background technique [0002] The isolation valve is a switch valve, that is, it is only in two states: open or closed. Unlike the switch valve, it basically has a requirement for the leakage level. The pilot-operated steam release isolation valve is designed for integrated control. It is a high-pressure, large-diameter pilot-operated safety isolation valve that is quickly opened by an electromagnetic pilot valve. Side steam overpressure protection and rapid cooling safety function. It is the most advanced product with the highest safety and reliability in this type of products. At present, all products of this type are provided by foreign countries and are monopolized by a few foreign companies. Due to the low demand and use of this...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/003
CPCG01M13/003
Inventor 宋学官刘富文周威豪宗超勇肖箭
Owner DALIAN UNIV OF TECH
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