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Liquid ammonia container leak detection system and method

A liquid ammonia and leak detection technology, applied in the field of detection systems, can solve problems such as missed detection, and achieve the effects of good elegance, small size and good detection effect.

Active Publication Date: 2018-09-07
ZHEJIANG GONGSHANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has the advantages of fast speed and economy, but there is still the possibility of missed detection

Method used

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  • Liquid ammonia container leak detection system and method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] refer to figure 1 , a liquid ammonia container leak detection system, comprising a liquid ammonia container body 1, a video camera 2 and an ultraviolet light source 3, the cavity of the liquid ammonia container body 1 is provided with liquid ammonia having a composite fluorescent agent microporous material, so The composite fluorescent agent microporous material is prepared by uniformly dispersing ultraviolet fluorescent agent particles in a microporous carrier, the pore diameter of the microporous carrier is 10-500 nm, and the composite fluorescent agent microporous material is uniformly suspended and dispersed in liquid ammonia.

[0037] The microporous carrier is a polyvinylidene fluoride microporous material, and the composite fluorescent agent microporous material is prepared by the following steps:

[0038] (1) Dibutyl phthalate and dodecanol are prepared into a mixed solvent at a weight ratio of 1:0.8;

[0039] (2) Add ultraviolet fluorescent agent to the mixed ...

Embodiment 2

[0045] refer to figure 1 , a liquid ammonia container leak detection system, comprising a liquid ammonia container body 1, a video camera 2 and an ultraviolet light source 3, the cavity of the liquid ammonia container body 1 is provided with liquid ammonia having a composite fluorescent agent microporous material, so The composite fluorescent agent microporous material is prepared by uniformly dispersing ultraviolet fluorescent agent particles in a microporous carrier, and the composite fluorescent agent microporous material is uniformly suspended and dispersed in liquid ammonia.

[0046] The microporous carrier is an activated carbon microporous material, and the composite fluorescent agent microporous material is prepared by the following steps:

[0047] (1) Activated carbon is homogeneously pulverized, and the particle size is controlled below 300 mesh;

[0048] (2) Mix activated carbon with ultraviolet fluorescent agent, the amount of ultraviolet fluorescent agent account...

Embodiment 3

[0052] refer to figure 1 , a liquid ammonia container leak detection system, comprising a liquid ammonia container body 1, a video camera 2 and an ultraviolet light source 3, the cavity of the liquid ammonia container body 1 is provided with liquid ammonia having a composite fluorescent agent microporous material, so The composite fluorescent agent microporous material is prepared by uniformly dispersing ultraviolet fluorescent agent particles in a microporous carrier, and the composite fluorescent agent microporous material is uniformly suspended and dispersed in liquid ammonia.

[0053] The microporous carrier is a perlite microporous material, and the composite fluorescent agent microporous material is prepared by the following steps:

[0054] (1) Expanded perlite is homogeneously crushed, and the particle size is controlled below 300 mesh;

[0055] (2) Mix perlite with ultraviolet fluorescent agent, the amount of fluorescent agent accounts for 1.9wt% of perlite, the solid...

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Abstract

The invention discloses a system and a method for leak detection of liquefied ammonia container. The leak detection system comprises a liquefied ammonia container body and UV light sources. The cavity of the liquefied ammonia container is filled with liquefied ammonia; composite fluorescent agent cellular materials are uniformly suspended and dispersed in the liquefied ammonia; the composite fluorescent agent cellular material is obtained through uniformly scattering the ultraviolet ray fluorescent agent particles in a micropore carrier, wherein the aperture of the micropore carrier is 10-500nm; the weight ratio between the fluorescent agent particles and the micropore carrier is 0.5-5:100; and the uv light sources are arranged on the circumference of the liquefied ammonia container body. The invention can detect whether leakage exists through the fluorescence effect, and is simple in operation, less in workload, safe and reliable, good in detection effect and low in the cost.

Description

technical field [0001] The invention relates to a detection system, in particular to a liquid ammonia container leak detection system and method. Background technique [0002] Due to the continuous development of modern science in the direction of ultra-high pressure, ultra-high vacuum, ultra-high temperature, ultra-high speed, strong corrosion, and strong radiation, new technical requirements for leak detection are constantly put forward; Absolutely "no leakage" is impossible. The "no leakage" or "no leakage" we usually talk about only means that the actual leakage is very small, and people can't test it with instruments or it will not affect a certain use requirement. , People stipulate that the leakage less than a certain order of magnitude is "no leakage". [0003] With the high development of modern science and technology, the use of leak detection technology in commercial, industrial, scientific and research institutions is developing rapidly. These institutions have ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/20
Inventor 王秀萍王宝根
Owner ZHEJIANG GONGSHANG UNIVERSITY