Gas is a general term for gas fuel, gas is closely related to our lives, is an important source of energy for cooking heating and boiling water. At present, the vast majority of Chinese residents use gas for cooking, which mainly includes natural gas, liquefied petroleum gas, artificial gas and so on.

2022Year7Month29The Ministry of Housing and Urban-Rural Development and the National Development and Reform Commission jointly issued 《“fourteen five”National Urban Infrastructure Construction Plan.

In terms of overall objectives, the Plan mentions a sustained increase in the penetration rate of urban piped gas. Planning2025The penetration rate of piped gas in large cities and above is not less85%, medium-sized cities not less75%Small cities are no less.60%。

Natural gas is not easy to compress and liquefaction is difficult. It is mostly transported by pipeline and directly transported to residents' homes through urban pipeline gas roads.
Liquefied petroleum gas and artificial gas are mostly transported to residents' homes in canned form and then used through connecting pipelines. 

While gas brings convenience to people's lives, there are also certain risks. Gas, as the name implies, is a gas that can be burned. If it reaches a certain volume ratio in a narrow space, and then encounters a fire source, it is more likely to have the risk of explosion.

2022In the third quarter of 2010, the total number of gas accidents nationwide (excluding Hong Kong, Macao and Taiwan)216caused by total17people died,136Injuries, among them major accidents2up. Including resident user accidents121industrial and commercial user accidents45(including catering user accidents42up).

2022Year6Month1On the 15th, an explosion occurred in a restaurant in Harbin, Heilongjiang Province, causing5People were injured. It is judged that the liquefied gas tank is leaking, causing flash explosion after ignition.

2022Year6Month21Day16When45A gas deflagration accident occurred near the intersection of Beicheng East Road and Wusu Road in Baodi District, Tianjin. Accident caused23Injuries among them.3People with severe burns.

2022Year7Month19On the 1st, a gas explosion accident occurred in the home of a resident in Beichen District of Tianjin, causing the door of the building.4To6Layer partially damaged, caused by accident13People are injured,4death of persons;

The causes of explosion accidents can be summarized as follows:

1Hose problem causedGas leakage: Gas hose is connectedGas pipelineandGas applianceThe special oil-resistant hose, due to the aging of the gas hose or rat bite caused by gas leakage accidents accounted for all gas accidents.30%Above.

22. Ignition failure, resulting in direct discharge of unburned gas.

3When using the stove to cook rice or boil water, the boiling soup causes the boiling water to extinguish the fire or the wind blows out the fire, causing gas leakage.

4After using the stove, forget to turn off the fire or the valve of the stove is not tightly closed after turning off the fire, resulting in gas leakage.

5、Pipeline corrosionorGas meter2. The valve and interface are damaged.

6Relocation, decoration or man-made pulling ropes or hanging objects on indoor pipesexternal force damage, Make the pipeline interface loose, causing gas leakage from the damaged or loose parts.

72. The damage of the gas cooker causes gas leakage.

84. The gas supply is interrupted suddenly during the use of the gas cooker, but it is not closed in time.Gas valve, resulting in the leakage of pipeline gas when the gas supply is restored.

9Gas leakage due to other reasons.

Gas will not cause explosion or combustion until it reaches a certain volume ratio in the space. The lower explosion limit is lower than the lower combustion limit, so the concentration of gas will reach the lower explosion limit first when it leaks. In normal air, the content of natural gas, liquefied petroleum gas, and artificial gas is almost zero. Only when a leak occurs will there be a concentration. Generally speaking, these gases are colorless and odorless. The sensor can detect changes in the concentration of these gases and issue an early warning., Customers can set different treatment plans according to the early warning.

TGS2618: High sensitivity to liquefied gas, small size, low power consumption, simple application

TGS2618High sensitivity to propane and butane is idealLPGThe monitor is an ideal sensor for gas leak alarms due to its low sensitivity to volatile alcohol (a common interfering gas in residential environments).

TGS2618-C00Not only small size, but also very good response. It is the ideal choice for gas leak detector.

TGS2618-D00It is equipped with a filter cover that can eliminate the influence of interference gases such as alcohol.LPSensitive characteristics of extremely high gas selectivity. Especially suitable for complex atmosphere, demanding household environment for testing appliances, is the ideal household gas leak detector sensor.

TGS2619High sensitivity to methane, small size, low power consumption, simple application

TGS2619It has high sensitivity to methane gas, because of its low sensitivity to volatile alcohol (common interference gas in living environment), it is an ideal sensor for household gas leak alarm.

TGS2619-C00Not only small size, but also very good response. It is the ideal choice for gas leak detector.

TGS2619-E00It is equipped with a filter cover that can eliminate the influence of alcohol and other interference gases, and has a sensitive characteristic of extremely high selectivity to methane gas. Especially suitable for complex atmosphere, demanding household environment for testing appliances, is the ideal household gas leak detector sensor.

TGS6814Linear output, full range, anti-interference

TGS6814It is a catalytic combustion gas sensor that can detect100%LELThe lower explosive limit of the level of methane gas. This sensor not only has excellent durability and fast response ability, at the same time, the linear output and the high stability of the output are also its main characteristics.

TGS6814The cap has a specially designed filter layer inside, making it very low cross-sensitivity to organic vapors. In addition, the sensor is more resistant to silicon compounds and is more adaptable to harsh environments.

TGS8410: High sensitivity to methane, ultra-low power consumption, anti-interference

TGS8410Gas Sensitive Subprime UseMEMSTechnology A heater integrated on a silicon substrate and a metal oxide semiconductor formed on the substrate are composed. Very little power consumption, only0.087mW(average value), which can be applied to energy-saving, battery-driven instruments.

In order to eliminate the influence of gas interference such as alcohol,TGS8410The filter cap is installed to further improve the sensitivity of high selectivity to methane gas. For the use of the environment is particularly complex family residential gas leak detector is the ideal sensor choice.

TGS5141The advantages of this sensor are:

* ultra-small

* Can be battery driven

* selectivity to carbon monoxide/High repeatability

* Very high linear output characteristics for carbon monoxide

* Easy calibration

* Long service life

* acquisitionULCertification

* meetUL2034, EN50291andEN54-31Requirements

TGS5141It is a battery-driven electrochemical sensor developed by Figaro that uses a special electrode instead of a water reservoir.TGS5042The water reservoir used in,TGS5141withTGS5042Compared with the latter, its external size is reduced to only the latter.10%Size. Life can reach more than ten years. Very suitable for family useCOAlarm.