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Gas leakage detection liquid

A technology of gas leakage and liquid detection, which is applied in the direction of detecting the appearance of fluid at the leakage point and measuring the liquid tightness by using liquid/vacuum degree, etc., which can solve the detection blind spots of monitoring instruments and the detection effect of soap liquid and bubble water Invisible, gas leakage and other problems, to achieve stable leak detection effect, good foaming, and reduce gas loss

Inactive Publication Date: 2018-02-23
PETROCHINA KUNLUN GAS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In view of this, the present invention provides a gas leakage detection liquid, which effectively solves the problems of detection blind spots in monitoring instruments, and ineffective detection of soap liquid and bubble water.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1.5g sodium linear alkylbenzene sulfonate LAS, 1.5g fatty alcohol polyoxyethylene ether AEO-9, 1.5g fatty alcohol polyoxyethylene ether sodium sulfate AES, 0.5g coconut oil fatty acid diethanolamide, 60g water, 35g Glycerin, 1 g of glucose, and 0.2 g of sodium chloride were mixed uniformly, heated to 60° C., stirred and mixed uniformly to prepare a detection solution.

[0031] The gas leak detection fluid usage:

[0032] for CH 4 For gas pipelines with a leakage concentration of less than 0.2%, take an appropriate amount of solution and place it in any container, use a brush to dip in the liquid and apply it richly on the target gas pipeline to be detected.

[0033] The test solution was tested on a gas pipeline with a leakage concentration of 30ppm, and visual inspection found that small bubbles appeared in the solution at the leakage point of the pipeline immediately after application. According to timing counting, the number of unbroken bubbles from the average app...

Embodiment 2

[0035] 2g linear alkylbenzene sulfonate sodium LAS, 2g fatty alcohol polyoxyethylene ether AEO-9, 1.5g fatty alcohol polyoxyethylene ether sodium sulfate AES, 1g6501, 60g water, 40g glycerin, 1g glucose, 0.5g chloride After the sodium is uniform, heat to 60°C, stir and mix evenly to prepare the test solution.

[0036] Usage is the same as embodiment 1.

[0037] The test solution was tested on a gas pipeline with a leakage concentration of 30ppm, and visual inspection found that small bubbles appeared in the solution at the leakage point of the pipeline immediately after application. According to timing and counting, the number of unbroken bubbles from the average application time to 1 minute is 58, and the foaming speed in the first unit minute is an average of 0.96 bubbles / s.

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PUM

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Abstract

The invention discloses a gas leakage detection liquid and addresses the problem that existing liquid soap and bubble water form unstable bubbles which are not suitable for gas leakage point detection. The gas leakage detection liquid specifically includes linear alkylbenzene sulfonate, fatty alcohol polyoxyethylene ether, sodium alcohol ether sulphate, water, coconutt diethanol amide, sodium chloride, glycerin and glucose. The detection liquid is good in foamability, stable in formed bubble and not prone to breakage and can economically, conveniently and rapidly detect micro-leakage, percolation and the like which can be found out by a suspension alarm, therefore, the risks of a gas system in a resident house is effectively reduced, the gas losses are reduced, and the gas usage security of a user side is improved.

Description

technical field [0001] The invention relates to a gas leakage detection liquid. Background technique [0002] Natural gas is more and more closely related to people's daily life. While it has many advantages, it also has the danger of being flammable and explosive. Therefore, it is also particularly important to increase the self-inspection and self-inspection of the safe use of natural gas at the user end. [0003] Gas leakage detection methods are divided into active detection and passive detection. [0004] Active detection: Use professional gas leak detectors for regular inspections, such as methane detectors. Its advantages are high precision and relatively accurate detection. The disadvantage is that the cost is high, and it is usually dedicated to the gas company, which is beyond the acceptance of most ordinary people. [0005] Passive detection: use a combustible gas alarm to detect, when gas leaks, the alarm probe will sense, so as to alarm and cut off the elect...

Claims

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Application Information

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IPC IPC(8): G01M3/12
CPCG01M3/12
Inventor 张书艳苗永健刘金岚孔翔宇李琳冯立德焦文玲耿文龙王通熊春宇赵俊泽田兴浩
Owner PETROCHINA KUNLUN GAS CO LTD
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