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Self force type micro pressure adjusting valve offline setting device and method

A technology of self-operated miniature and regulating valves, which is applied in the direction of valve devices, safety valves, balance valves, etc., which can solve problems such as low working efficiency, no setting device, and great influence on equipment sealing, and achieve good use effect and precise pressure setting Effect

Pending Publication Date: 2019-10-08
CNNC FUJIAN FUQING NUCLEAR POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since the inlet and outlet flanges of the self-operated micro-pressure regulating valve are in the horizontal direction, the safety valve pressing table in the existing nuclear power plant cannot clamp and fix this type of valve, and there is no special setting device
However, the pressure setting value of the micro-pressure regulating valve is generally small, and it is necessary to replace the pressure gauge with a smaller range when using the safety valve to suppress the pressure. However, repeated disassembly and assembly have a great impact on the sealing of the equipment, and the work efficiency is low.

Method used

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  • Self force type micro pressure adjusting valve offline setting device and method

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Embodiment Construction

[0040] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0041] Such as figure 1 The self-operated micro-pressure regulating valve offline setting device shown is used for offline pressure setting of the micro-pressure regulating valve 13 to be set, including compressor 1, pressure reducing valve 2, pressure gauge 3, shut-off valve A4, and shut-off valve B5 , Pressure relief valve 6, pressure tank 7, stud bolt 8, connecting flange 9, nut 10, sealing rubber pad 11, inlet flange 12, pressure tank support plate 14, support plate base 15.

[0042] The air compressor 1 is used as an air supply source, communicated with the pressure tank 7 through a rubber hose, and a pressure reducing valve 2 and a shut-off valve B5 are sequentially arranged on the rubber hose.

[0043] The pressure reducing valve 2 can decompress the intake pressure of the compressor 1, so as to avoid excessive intake pressure...

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Abstract

The invention relates to the technical field of valve pressure setting, and particularly discloses a self force type micro pressure adjusting valve offline setting device and method. The offline setting device is adopted for performing operation. The following steps that 1, setting preparation; 2, leakage detection; 3, setting; and 4, valve dismantling when setting is completed are included. The device is adopted, and effectively solves the problem that a safety valve check table cannot be used for clamping a self force type micro pressure adjusting valve, and a pressure meter needs to be replaced when the safety valve check table is used for pressure testing, offline, efficient and accurate pressure setting of the self force type micro pressure adjusting valve can be achieved, and the using effect is good.

Description

technical field [0001] The invention belongs to the technical field of valve pressure setting, and in particular relates to an off-line setting device and method for a self-operated micro-pressure regulating valve. Background technique [0002] Self-operated micro-pressure regulating valves are widely used in the automatic control of gas decompression and pressure stabilization of nuclear power equipment, especially in the nitrogen blanketing system of storage tanks. After the self-operated micro-pressure regulating valve has been in operation for a long time, the adjusting nut of the pneumatic head spring of the valve may become loose, which will cause the pressure stabilization and relief pressure of the valve to deviate from the set value. safety and reliability. [0003] Since the inlet and outlet flanges of the self-operated micro-pressure regulating valve are in the horizontal direction, the safety valve pressing table in the existing nuclear power plant cannot clamp ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/06F16K37/00
CPCF16K17/06F16K37/0066
Inventor 杨军染风涵贾仲林曹彬彬张家林李勇裴石磊吴涛黄帅韩文悦徐强
Owner CNNC FUJIAN FUQING NUCLEAR POWER
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