1. Industrial and commercial applications
Regarding hotels, restaurants, and hotel kitchens, according to the relevant laws and regulations such as (National Safety Production Law of the People's Republic of China): all production, storage, and use units of flammable and explosive materials must comply with (Building Fire Protection Design Code) Article 10.3. 2. Class A workshops and places that emit flammable gas and flammable steam should be equipped with a flammable gas concentration leak detection alarm device, and a flammable gas detection alarm device should be installed reasonably; the gas, gas or artificial gas used in the kitchen of the hotel is flammable, Explosive gas, and the gathering of people in restaurants and restaurants is a key place to monitor fire and explosion accidents, so it is necessary to install flammable gas alarms.
The main gas produced: methane, carbon monoxide, hydrogen, liquefied gas.
2. Biogas tank
The construction of biogas digesters in various places not only improves the sanitation of rural areas, reduces the burden on farmers, and protects the ecology, but also initially forms an ecological agriculture system that combines planting and breeding, which is generally welcomed by farmers, but the PH value of biogas digester fermentation materials requires 68- 7.5, the content of biogas produced also needs to be detected.
Main detection: methane, carbon dioxide, PH value.
3. Air quality control
With the enhancement of safety and health awareness, people are more and more urgent to control the air quality in underground garages, rail transit and other spaces or the automatic ventilation of central air conditioners. In the fields of municipal pipe network, sewage treatment, urban pipe network, etc., municipal authorities need to use it to detect chlorine, hydrogen sulfide and other gases in tap water treatment and sewer sewage treatment.
4. Steel smelting
The iron and steel industry is an industrial industry mainly engaged in industrial production activities such as the mining and processing of ferrous metal minerals and ferrous metal smelting and processing, including metal iron, chromium, manganese, etc. , ferroalloy smelting industry, steel wire and its products industry and other sub-industries are one of the important raw material industries in the country. Metallurgical iron and steel enterprises will produce a large amount of by-product "gas" in the process of smelting and production (ie: coke oven gas, blast furnace gas, Converter gas), and gas is the best secondary energy for iron and steel enterprises. In order to make full use of secondary energy, there are a large number of gas equipment and facilities in gas purification, transportation, storage, pressurization and use. In order to make these gas equipment and facilities operate safely, operators and maintenance personnel will be exposed to carbon monoxide. Due to the lack of awareness of gas hazards (carbon monoxide and combustible gas) by some personnel, gas poisoning or explosion accidents occur from time to time. Therefore, the safety protection detection of metallurgical enterprises is very necessary.
Mainly produced gases: (CO) carbon monoxide, (CH4) methane, (H2) hydrogen, (H2S) hydrogen sulfide, (C6H6) benzene, (HN3) ammonia, (CS2) carbon disulfide, (C10H8) naphthalene, phenol, (02 ) oxygen, (CO2) carbon dioxide gas, (N2) nitrogen gas.
5. Electric power industry
Gas detection instruments have a wide market space in the power industry, and can detect sulfur hexafluoride gas generated by power substations.
The main gas produced: ammonia, chlorine, hydrogen sulfide, sulfur hexafluoride, oxygen.
6. Polysilicon industry
The production process of polysilicon is mainly composed of high-purity quartz (reduced by high-temperature coke) → industrial silicon (pickling) → silicon powder (added HCL) → SiCL3 (through crude distillation and rectification) → high-purity SiHCL3 (with hydrogen reaction CVD process) →High-purity polysilicon.
7. Coal industry
Coking industry, coal gasification-synthetic ammonia, coal-based methanol, coal-to-synthetic oil, and coal chemical co-production all have extensive demands for gas alarm products, especially for gas detectors such as sulfur dioxide, hydrogen sulfide, carbon monoxide, chlorine, and ammonia. The quantity is very large.
The main gas produced: carbon monoxide, hydrogen sulfide, methane, sulfur dioxide, chlorine, ammonia.
8. Chlor-alkali industry
In the production process of chlor-alkali enterprises, there will be leakage of toxic, harmful, flammable gases and even explosion accidents. Ensuring safe production is crucial to the survival of the enterprise. The hydrochloric acid process generally includes: hydrogen, chlorine → synthesis → cooling → absorption → hydrochloric acid, and the caustic soda process generally includes: original salt → salt → filtration → neutralization → ionic membrane electrolysis → caustic soda.
Mainly produce gases: chlorine, hydrogen, vinyl chloride monomer, acetylene, ammonia and other toxic and flammable gases.
9. Fine chemicals
Fine chemical industry is closely related to people's daily life. It is as important as food production and is related to national security. Therefore, fine chemical industry is one of the pillar industries in China. At the beginning of the new century, fine chemical industry was approved by the State Economic and Trade Commission. It is listed as one of the development priorities, and ensuring safe production is the top priority of the fine chemical industry.
Mainly produced gas: flammable gas, ammonia, chlorine concentration, methanol, acetone.
10. Aluminum Industry
At present, aluminum in the world is produced by electrolysis of cryolite-alumina molten salt. The flue gas released during the aluminum electrolysis process includes gaseous and solid substances. The gas released by normal electrolysis is a mixture of carbon monoxide and carbon dioxide and a small amount of fluoride gas. .
Mainly produced gases: natural gas, chlorine, hydrogen, carbon monoxide, carbon dioxide.
11. Agricultural greenhouses
Vegetables and fruits in agricultural greenhouses will release carbon monoxide, carbon dioxide, oxygen, etc. If the concentration of these gases is too high, the plants in the greenhouse will definitely not be able to bear it. Generally, these gas detectors need to be installed to detect whether the gas concentration in the greenhouse is too high. , whether it is suitable for the healthy growth of plants, if the concentration is too high, the workers need to take certain measures to extract the gas with too high concentration.
Mainly produce gases: oxygen, carbon monoxide, carbon dioxide, etc.
12. Food, fruit and vegetable cold storage
The fruit thinning and food in the cold storage produce heat from breathing, and other gases, such as carbon dioxide and oxygen, are bound to be produced. The cold storage is poorly ventilated, and the temperature and humidity are too high, causing the old mold to multiply and produce musty or odor.
Mainly produced gases: carbon dioxide, oxygen, ozone, formaldehyde.
