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Sulfur Hexafluoride (SF₆) Leak Detection

Sulfur hexafluoride (SF₆) has a wide range of applications in the chemical and industrial fields, especially as an insulating and arc - extinguishing medium in the power industry. However, the hazards of sulfur hexafluoride are mainly related to its purity, usage environment, and mode of contact.

Sulfur hexafluoride (SF₆) has a wide range of applications in the chemical and industrial fields, especially as an insulating and arc - extinguishing medium in the power industry. However, the hazards of sulfur hexafluoride are mainly related to its purity, usage environment, and contact methods.

Project Application

This is a cooled infrared gas leak detection imager, which has the ability to detect sulfur hexafluoride with high precision and can detect a tiny leak of 0.001ml/s.
There are hundreds of German Siemens medium - voltage switchgear cabinets. One of them has a relatively fast sulfur hexafluoride leak. The factory has locked the approximate position through a helium leak detector, but cannot precisely locate the leak point.
As there is a concern that soapy water may contaminate the cabinet, the use of soapy water to determine the leak point is not allowed. At this time, the FOTRIC gas leak detection imager shows its powerful advantages. Through non - contact detection, it easily locates the leak point more than one meter away.

Under conditions such as arc discharge or high temperature, sulfur hexafluoride may decompose into various toxic lower - fluorine compounds, such as thionyl fluoride, sulfuryl fluoride, sulfur tetrafluoride, hydrofluoric acid, etc., which pose various hazards to the human body.
Thionyl fluoride: It is a colorless and transparent gas. It is highly toxic and can cause serious health problems such as pulmonary edema.
Sulfuryl fluoride: It is toxic. Excessive inhalation may lead to congestion in the lungs, thymus, and meninges, and may even cause convulsions and death.
Sulfur tetrafluoride: It is a colorless and pungent - smelling gas. It combines with water to form a smog, is easily inhaled by the human body, attacks the lungs, and causes lung damage and respiratory diseases.
Hydrofluoric acid: It is a highly dangerous and extremely toxic inorganic acid with strong corrosiveness. It can cause corrosive burns and may even lead to death in a short time.


Application effect

Sulfur hexafluoride is an excellent insulating gas for GIS equipment. Once it leaks, it will lead to a decline in insulation performance, increase the risk of equipment failure, and even cause equipment damage, and pose a threat to personnel safety.
Therefore, it is of great importance to detect and repair sulfur hexafluoride leaks in a timely manner. The FOTRIC gas leak detection imager, relying on high - precision thermal imaging technology, can quickly identify the leak points and ensure the safe operation of the equipment.


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