How to determine the location of liquefied gas leakage on site?
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During production, liquefied gas leakage may often occur. How do you judge it? ? Do you just rely on your nose to smell? There is one situation where it is particularly difficult to determine where the liquefied gas is leaking.: The amount of leakage is small, and the smell can only be smelled from the leaking valve and pipe parts, and the pipes are insulated. It is particularly difficult to judge. Do we have to remove the insulation to observe? ?
In addition, although there are liquefied gas alarms, they only detect large-area liquefied gas leaks. If there is a smaller liquefied gas leak, it must be judged by experience. So how to judge? ?
Lather? Do this when it’s high pressure and airtight
If liquid liquefied gas leaks, there should be water droplets or frost on the surface of the pipeline.
Judging from actual work, condensation, frost and other phenomena are common in liquid phase leakage parts depending on the size of the leakage. It is difficult to detect trace amounts. The pipelines are insulated. If there is an internal leak, the insulation can only be removed.
If the leakage is small, the smell can only be smelled from the leaking valve and pipe, and the pipe is insulated. It is still necessary to dismantle the insulation and inspect it. Don't be afraid of trouble. There is no other way than to directly witness it.
If there is frost or condensation on the insulation area of the package, it means that the leakage point is already large. It is better to dismantle it. Even if it is not leaking, you can rest assured. Generally, liquefied gas leaks are on the pump, flange, and valve. I have been doing gas analysis for 12 years and can basically judge the leakage components based on the smell. If you carefully check nearby, you can usually find the leakage point without soapy water. If you look carefully, a small leakage of liquefied gas will look like the air next to the high-temperature pipeline is disturbed. The key is the issue of responsibility.
If the leakage is large, you can see it. If it is small, remove the insulation. If you cannot find it, you can use a leak detector.
Depending on the size of the leakage, icing and frosting are common phenomena at the leakage site. It is difficult to find if there is a trace amount. The pipeline is insulated. When it is determined that there is an internal leak, the insulation can only be removed.
Portable combustible gas detector