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Device and method for testing dynamic performance of pilot-operated steam release isolating valve for nuclear power

A test device and dynamic performance technology, applied in the direction of mechanical valve testing, etc., can solve problems such as low demand and usage, high R&D costs, and high technical difficulty, so as to protect safety, keep clean, and not affect measurement accuracy. Effect

Active Publication Date: 2022-01-18
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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  • Device and method for testing dynamic performance of pilot-operated steam release isolating valve for nuclear power
  • Device and method for testing dynamic performance of pilot-operated steam release isolating valve for nuclear power
  • Device and method for testing dynamic performance of pilot-operated steam release isolating valve for nuclear power

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Embodiment Construction

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

[0038] The overall structure of the isolation valve dynamic characteristic test device is as follows: figure 1 and figure 2 As shown, the gas storage tank 3 and the one-way valve 1 are connected together through threaded connection, the upper end of the gas storage tank 3 is connected with the safety valve 2 through a stud bolt, and the right end of the gas storage tank 3 is connected with the connecting pipe A4 through a stud bolt. Together, the right end of the connecting pipe A4 is connected with the gate valve 5 through a stud, the right end of the gate valve 5 is connected with the connecting pipe B through a stud, and the right end of the connecting pipe B6 is connected with the connecting pipe C11 through a stud. The right end of the pipe C11 is connected to the flange A7 by bolts, the flange A7 is connected to the isolation valve 9 by a stud, and the flange ...

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Abstract

The invention discloses a device and a method for testing the dynamic performance of a pilot-operated steam release isolating valve for nuclear power, belongs to the technical field of valve testing, and is mainly used for testing the opening, discharging and closing characteristics of the release isolating valve. The test device comprises an air supply device, a quick start-stop device, an air pressure detection device, an isolation valve rod displacement detection device, a valve rod vibration measurement device, an isolation valve system and a data acquisition system. The air supply device is used for supplying air to the isolating valve, the quick start-stop device is used for controlling opening and closing of the release isolating valve, and the air pressure detection device is used for measuring pressure of an air conveying pipeline, an outlet, an inlet and an upper valve cavity of the isolating valve. The isolation valve rod displacement detection device is used for detecting the displacement change of the isolation valve rod. The valve rod vibration measurement device is used for detecting the vibration characteristic of the isolation valve rod. And the acquisition system is used for supplying power to the sensor, sending out a PLC control signal, and acquiring and processing data. The device is simple in structure and high in data precision, and can provide a good guarantee for testing the dynamic characteristics of the release isolating 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-operated steam release isolation valve used in nuclear power. Background technique [0002] Isolation valves are on-off valves, which are only in two states of open or closed. Unlike on-off valves, they basically have a requirement for leakage levels. The pilot-operated steam release isolation valve is designed for integrated control. The high-pressure, large-diameter pilot-operated safety isolation valve that is quickly opened is controlled by an electromagnetic pilot valve. Side steam overpressure protection and rapid cooling safety functions. It is the most advanced product with the highest safety and reliability in this type of product. 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 e...

Claims

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Application Information

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Patent Type & Authority Applications(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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