Breather valve test bed for improving test efficiency and test method thereof

A technology for testing efficiency and breathing valves, applied in mechanical valve testing, fluid tightness testing, machine/structural parts testing, etc., can solve the problems of low testing accuracy and testing efficiency of marine breathing valves, and improve space utilization , good test accuracy, the effect of volume reduction

Pending Publication Date: 2021-07-16
CHENGXI SHIPYARD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the test accuracy and test efficiency of the marine breathing valve are relatively low

Method used

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  • Breather valve test bed for improving test efficiency and test method thereof
  • Breather valve test bed for improving test efficiency and test method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as Figures 1 to 2 Shown is a kind of embodiment that is used for improving the breathing valve test bench of the present invention, comprises frame 1, is arranged on the frame platform 2 of described frame 1 upper end, is arranged on described frame platform 2 A certain number of test stations 3, the gas collection box 4 arranged at the lower part of the frame 1, each of the test stations 3 is provided with a butt pipe 5 for installing a breathing valve 26, and the butt pipe 5 The test pipeline 6 communicates with the inside of the gas collection box 4, the gas collection box 4 is connected to the vacuum device 8 through the vacuum suction pipeline 7, and the gas collection box 4 is connected to the air supply through the air intake pipeline 9 In the unit 10, a ball valve 11 is arranged on the vacuum suction pipeline 7, and a needle valve 12 is arranged on the air intake pipeline 9.

[0032] In this embodiment, the test pipeline 6 is provided with a ball valve 11...

Embodiment 2

[0043] A kind of test method that adopts embodiment 1 to be used to improve the breathing valve test bench of test efficiency, comprises the steps:

[0044] (1) Breathing valve installation: a group of breathing valves 26 are correspondingly installed on the flanges 14 of each docking pipeline 5, and the control air circuit 15 on the test pipeline 6 is connected to the breathing valve 26;

[0045] (2) Positive pressure take-off test: close the ball valve 11 on the vacuum suction pipeline 7, adjust the needle valve 12 on the intake pipeline 9 to a suitable opening, and pass the air supply unit 10 through the gas collection box 4 to the breathing valve 26 is inflated and pressurized, and the ball valve 11 on the test pipeline 6 is opened to keep the pressure uniform rate of rise in the positive pressure test process at about 0.001MPa / s, so as to accurately collect the pressure value of the positive pressure take-off of the breathing valve 26, such as The pressure value deviates ...

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PUM

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Abstract

The invention relates to the technical field of valve testing, and in particular, relates to a breather valve test bed for improving test efficiency and a test method thereof. The breather valve test bed comprises a machine frame, a machine frame platform arranged at the upper end of the machine frame, a plurality of test stations arranged on the machine frame platform and a gas collecting box arranged on the lower portion of the machine frame; each test station is provided with a butt joint pipeline used for installing a breather valve, the butt joint pipeline is communicated with the interior of the gas collection tank through a test pipeline, the gas collection tank is connected with a vacuumizing device through a vacuum suction pipeline, the gas collection tank is connected with a gas supply unit through a gas inlet pipeline, and the vacuum suction pipeline is provided with a ball valve; and a needle valve is arranged on the gas inlet pipeline. According to the invention, the test precision and the test efficiency of the breather valve are improved.

Description

technical field [0001] The invention relates to the technical field of valve testing, in particular to a breathing valve test bench and a testing method for improving test efficiency. Background technique [0002] The marine breathing valve is a breathing device that can automatically adjust the pressure of the cargo tank. It is used to keep the cargo tank at a certain safe pressure during the filling, transportation and lightering of liquid cargo ships such as chemicals and natural gas. There are mainly gravity type, Magnetic, pilot-operated, and pilot-operated breathing valves are often used on liquefied gas ships (because of their high precision in pressure control and high sensitivity of opening and closing actions). After the valve is repaired and assembled, a tightness test is required. The main test items are: check and adjust the positive pressure take-off and negative pressure take-off pressure values; check and adjust the valve closing pressure value; check the air...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/28G01M13/003
CPCG01M3/2876G01M13/003
Inventor 汤传春
Owner CHENGXI SHIPYARD
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