Combustible gas sensor modules commonly used in household gas alarms

In daily life, people often call natural gas, liquefied petroleum gas, coal gas and other combustible gases coal gas. In fact, coal gas, natural gas and liquefied petroleum gas are all different types of fuel gas. At present, most of the domestic fuel gas is liquefied petroleum gas, not coal gas. The gas pipelines in the community are generally planned in a unified manner, and natural gas is used. Gas brings us a lot of convenience, but if it is used improperly, it can also cause great disasters. Every year, there are tens of thousands of accidents of gas leakage, gas fire and explosion caused by improper use.

According to incomplete statistics from BoRan.com, in May 2019, there were 53 gas accidents reported by domestic media, causing 46 injuries and 10 deaths. Among them, 27 gas accidents occurred in residents' homes, accounting for 51%; 9 accidents occurred due to the digging of gas pipes during construction, accounting for 17%; and 11 gas accidents occurred in restaurants and other shops, accounting for 21%. Not only that, there must be many accidents that are not reported.

The above chart shows that the provinces with the highest incidence of domestic gas accidents in May 2019 were Jiangsu, Shandong, Sichuan, Jiangxi, Hubei, Heilongjiang and Henan.

The above chart shows that among the domestic gas accidents in May 2019, a total of 27 occurred in residential areas, accounting for 51%; a total of 9 accidents occurred at construction sites, accounting for 17%; a total of 11 gas accidents occurred in restaurants and other shops, accounting for 21%.

The above chart shows that in May 2019, there were 12 gas accidents caused by improper operation, accounting for 23%; the number of accidents caused by construction was 9, accounting for 17%; and there were 2 accidents caused by suicide, accounting for 4%.

The above chart shows that in the statistics of gas source types of domestic gas accidents in May 2019, there were 31 accidents caused by liquefied petroleum gas, 21 accidents caused by natural gas, and 1 accident caused by blast furnace gas.

Cooking, boiling water and taking a bath are things that people have to do every day. Although the development and application of electricity and solar energy have given rise to a number of new energy products such as induction cookers, electric water heaters, and solar water heaters, gas is still the mainstream fuel used in people's lives. Gas stoves, gas stoves, gas water heaters and other products are still the choice of most families. Therefore, when using gas products in life, in addition to developing good usage habits, it is very important to install corresponding gas alarms, which can prevent accidents to a great extent.

Regarding the selection of gas alarms, you can generally choose a single-performance alarm or an all-in-one alarm based on the type of gas used. Generally, if natural gas is used, a natural gas methane alarm can be selected. If liquefied petroleum gas is used, a liquefied petroleum gas propane alarm can be selected. Of course, you can also choose a natural gas/petrol gas two-in-one alarm, but the price will be relatively expensive. Of course, the core of the alarm is the sensor , so the quality of the sensor is very important, which is the main factor in whether the alarm can play a good role. Here, the editor of Gongcai.com briefly introduces two very good products, which are the first choice of many domestic and foreign manufacturers of gas alarms and flammable gas alarms.

FIGARO Propane C3H8 Gas Pre-calibrated Detection Module FSM-10Y-01 is a module equipped with FIGARO semiconductor sensor TGS2610-D00 . It is designed for detection based on propane gas. It contains molecular sieves, which can effectively isolate the influence of other gases. It can detect 0~20% LEL propane gas, USART and PWM outputs, and fault detection function. It has the advantages of good durability, good stability, small size, and maintenance-free. It is often used in liquefied petroleum gas leak detection alarms, refrigerant R290 leak detection in refrigeration equipment, etc.

Japan FIGARO  methane CH4 gas pre-calibrated detection module - FSM- T -01 , which is a module equipped with FIGARO semiconductor sensor TGS2611-E00, is designed for methane gas detection and contains molecular sieves, which can effectively isolate the influence of other gases. It can detect 0~20% LEL of methane gas, TTL level USART output, and can set alarm points. It has the advantages of small size, low cost, temperature compensation, factory calibration, etc. It is often used in natural gas leak detection alarms, methane gas alarms, etc.