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Typical Areas Where Gas Detection is Required
In the industrial field, the main hazards of gases come from flammability (risk of fire or explosion), toxicity (risk of poisoning), and suffocation (hypoxia). Therefore, labor protection departments in most countries and regions require related companies to install and use gas detectors to protect the lives of workers and the safety of the company’s property. This article briefly talks about the use of gas detectors in SIX typical areas.
1. Oil & Gas
The oil and gas industry includes a variety of activities, from onshore and offshore exploration to the production of oil and gas to its transportation, storage and refining. The large amount of highly flammable hydrocarbon gases involved is a serious explosion hazard. In addition, toxic gases such as hydrogen sulfide are often present.
Typical applications: Exploration drilling platforms, production platforms, onshore oil and gas terminal stations, refineries, etc.
Typical gas: Flammable gas (HC), toxic gas such as H2S, CO etc.
The manufacture of semiconductor materials involves the use of highly toxic substances and flammable gases. Phosphorus, arsenic, boron, and gallium are often used as additives. Hydrogen is not only used as a reactant, but also often used as a carrier gas for reducing air. Pickling gas and cleaning gas include NF3 and other perfluorinated compounds.
Typical applications: Wafer reactor, Wafer dryer, gas chamber, chemical vapor deposition, etc.
Typical gases: Flammable gas (H2, CH4, Isopropyl alcohol etc), toxic gas (HCL, AsH3, BCl3, PH3, CO, HF, O3, H2Cl2Si, TEOS, C4F6, C5F8, GeH4, NH3, NO2 etc), and Spontaneous combustion gas such as silane.
Chemical plants may be one of the largest users of gas detection equipment. In their production process, they are usually used or as a by-product to produce a variety of flammable and toxic gases.
Typical applications: Storage of raw materials, process areas, laboratories, pump trains, compressor stations, guided/non-guided areas, etc.
Typical gas: Flammable gas (HC), toxic gas (H2S, NH3, HF etc) and hypoxia
Traditionally, the main fuel for power stations is coal and oil. In Europe and the United States, most power stations’ fuel has been converted to natural gas.
Typical applications: Boiler tube operation and near the combustion furnace, in and around the turbine package, coal bunkers and conveyor belts in older coal/oil power stations, etc.
Typical gas: Flammable gas (CH4, H2 etc), toxic gas (CO, SOx, NOx etc) and hypoxia
5.Wastewater treatment equipment
Wastewater treatment plants are common in many cities and towns. Sewage will naturally emit methane and hydrogen sulfide. The hydrogen sulfide gas with the smell of "rotten eggs" can be detected by the nose even when it is as little as 0.1 ppm, so it is noticeable.
Typical applications: Digesters, installation sewage tanks, hydrogen sulfide scrubbers, pumps, etc.
Typical gases: Flammable gas (CH4, solvent vapor), toxic gas (H2S, CO2, CL2, SO2, and O3)
There are many shapes and sizes of boiler rooms. Smaller buildings can use a single boiler, while larger buildings often use large boiler rooms with several large boilers.
Typical applications: Leakage of flammable gas in the intake trunk line, leakage in the boiler and surrounding gas pipelines, poorly maintained boilers will emit carbon monoxide, etc.
Typical gases: CH4 and CO