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A device and method for on-line detection of breathing valve

A technology of detection device and breathing valve, which is applied in valve device, measurement device, testing of mechanical parts, etc., can solve the problems of difficulty and complexity of online detection device, and achieve the effect of stable detection data, simple operation procedure, and avoidance of adjustment.

Active Publication Date: 2018-06-15
PETRO OIL & LUBRICANT RES INST OF THE GENERAL LOGISITIC DEPT OF PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At the same time, through the free installation method, it is used to solve the difficult and complicated problems of online detection devices

Method used

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  • A device and method for on-line detection of breathing valve
  • A device and method for on-line detection of breathing valve
  • A device and method for on-line detection of breathing valve

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Experimental program
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Effect test

Embodiment 1

[0020] Such as figure 1 As shown, it is a schematic structural view of the breathing valve online detection device of the present invention. The positive and negative opening pressure online detection device of the breathing valve of the present invention includes a vacuum pressure cover (1), a surge tank (2), a regulating valve (3), Gas flow meter (4) and vacuum pump (5) etc.; Described vacuum pressure cover (1) can directly cover the outside or the inside of breathing valve (8) to be tested, so that make breathing valve (8) to be tested under positive pressure or A closed space is formed respectively under negative pressure conditions; a regulating valve (3) and a gas flow meter (4) are arranged between the vacuum pressure cover (1) and the surge tank (2), and the vacuum pressure is controlled by the regulating valve (3) The pressure change in the cover (1), the gas flowmeter (4) records the leakage when opening the pressure; the surge tank (2) is connected with the vacuum p...

Embodiment 2

[0038] Such as figure 1 As shown, it is a schematic structural view of the breathing valve online detection device of the present invention. The positive and negative opening pressure online detection device of the breathing valve of the present invention includes a vacuum pressure cover (1), a surge tank (2), a regulating valve (3), Gas flow meter (4) and air compressor (5) etc.; Described vacuum pressure cover (1) can directly cover the outside or the inside of breathing valve to be tested (8), so that make breathing valve to be tested (8) Under pressure or negative pressure conditions, a closed space is formed respectively; a regulating valve (3) and a gas flow meter (4) are arranged between the vacuum pressure cover (1) and the surge tank (2), and are controlled by the regulating valve (3) The pressure change in the vacuum pressure cover (1), the leakage amount when the gas flow meter (4) records the opening pressure; Before the test, the pressure in the surge tank (2) re...

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Abstract

The invention discloses a breather valve positive-negative opening pressure online detecting device. The device comprises a vacuum pressure cover, a pressure stabilizing tank, an adjusting valve, a gas flow meter, a vacuum pump or an air compressor and the like. The vacuum pressure cover can directly cover the outer side or the inner side of a breather valve to be measured so as to enable the breather valve to be measured to form closed space under positive-pressure or negative-pressure condition; the adjusting valve and the gas flow meter are arranged between the vacuum pressure cover and the pressure stabilizing tank; the pressure change in the vacuum pressure cover is controlled by the adjusting valve; the gas flow meter records the leakage in pressure opening; the pressure stabilizing tank is connected with the vacuum pump or the air compressor; and the vacuum pump or the air compressor enables the pressure in the pressure stabilizing tank to reach a certain vacuum pressure value before testing. The device realizes detection of performances of the oil tank breather valve under online condition, prevents disassembly of the breather valve and adjustment of the pressure in a tank, can realize detection of positive-negative pressure opening pressure of the breather valve by single vacuum pump or air compressor, greatly improves the detecting efficiency and safety, and is simple in structure, convenient for operation method, wide in adaptation range and stable and accurate in detecting data.

Description

technical field [0001] The invention belongs to a detection device for safety accessories of petrochemical vehicles, more specifically, an on-line detection device and method for a storage tank breather valve of products such as vehicles filled with light fuel tanks. Background technique [0002] The breathing valve is a safety device to ensure the normal breathing of the storage tank. It can not only maintain the air pressure balance of the storage tank, ensure that the storage tank is not damaged when it is overpressure or vacuum, but also minimize the discharge of the medium in the tank and reduce environmental pollution. . At present, most of the breathing valve detection devices install the breathing valve on the test bench of a specific laboratory, and use air compressors and vacuum pumps to provide positive and negative pressures to open the breathing valve to determine the outward direction of the breathing valve. and inward cracking pressure. There are also portab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K37/00G01M13/00
CPCF16K37/0083G01M13/00
Inventor 刘楠邵伟光张宏旺方保华刘进立
Owner PETRO OIL & LUBRICANT RES INST OF THE GENERAL LOGISITIC DEPT OF PLA
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