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Dual-fuel vehicle high-pressure pipeline leak detection device

A leak detection device, a technology for dual-fuel vehicles, applied in directions such as measuring the rate of increase and deceleration of fluids, and using liquid/vacuum to measure liquid tightness, etc., can solve the safety and economical requirements that are not suitable for dual-fuel vehicles, etc. problem, to achieve the effect that the test result is true and the chemical reaction is not easy

Inactive Publication Date: 2002-11-13
于志谦 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the above shortcomings, this method is not suitable for the safety and economical requirements of dual-fuel vehicles

Method used

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  • Dual-fuel vehicle high-pressure pipeline leak detection device
  • Dual-fuel vehicle high-pressure pipeline leak detection device
  • Dual-fuel vehicle high-pressure pipeline leak detection device

Examples

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Embodiment Construction

[0011] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0012] figure 1 The described high-pressure gas generation device includes original helium storage device, intermediate helium storage device, high-pressure helium compression, storage, and release device.

[0013] is the original helium storage device, together with the helium, directly purchased from the helium sales factory, the helium pressure is P when purchasing 1 .

[0014] is an intermediate helium storage device, which provides a certain pressure of low-pressure helium for the compressor, and the cylinder QP 2 The range of pressure change is P 2 --P 2 '(P 2 2 '). Pressure gauge B 3 With electric contacts, control solenoid valve DF 1 , when cylinder QP 2 Pressure2 when B 3 Perceiving this situation, DF 1 open to QP 2 Inflate; when cylinder QP 2 Pressure>=P 2 ', B 3 Perceiving this situation, DF 1 cut off, ...

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Abstract

The invention relates to a high-pressure pipeline leakage detection device used in dual-fuel vehicle safety detection. Positive pressure leak detection method is adopted, gas is used as the working medium, the medium gas is compressed to the required high pressure by a high-pressure gas generating device, injected into the high-pressure pipeline, and the actual working condition of the high-pressure pipeline is simulated. Then, detect with a medium leak detector. If there is a leak, the medium leak detector will inhale the leaked medium gas and analyze it to obtain a definite leak value and compare it with the standard leak value to determine whether it is a faulty leak. Thereby changing the previous qualitative detection method.

Description

Technical field: [0001] The invention relates to a high-pressure pipeline leakage detection device used in dual-fuel vehicle safety detection. Background technique: [0002] Dual-fuel vehicles are refitted with fixed fuel vehicles. On the basis of maintaining the original vehicle's fuel supply system, a set of vehicle gas devices is added to form an oil-gas dual-purpose vehicle. Using natural gas or liquefied petroleum gas as vehicle fuel improves the fuel economy and greatly reduces vehicle exhaust pollution on the basis of basically maintaining the power performance of the original vehicle. In addition, the vehicle is easy to refit, safe and reliable to use, and is suitable for the advantages of abundant natural gas and liquefied petroleum gas resources in my country. [0003] The current detection method for the leakage of high-pressure pipelines of dual-fuel vehicles is that according to relevant international requirements, only the liquid coating method can be used, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/26
Inventor 于志谦贾生
Owner 于志谦
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