Three minutes to understand the installation and use of household gas alarms

With the popularity of natural gas, many households now use natural gas. Natural gas is easy to use and energy-saving, but natural gas is prone to leakage. Therefore, many home kitchens have gas alarms installed. Domestic combustible gas alarms can also be called gas alarms. They are mainly used to detect household gas leaks and prevent accidents such as gas poisoning. Therefore, it is necessary to install gas alarms at home.

Three minutes to understand the installation and use of household gas alarms

Then how to choose the gas alarm?

The most critical performance of domestic combustible gas alarms is to require both high sensitivity to the detected gas and high stability and immunity. Because the sensors used in alarms have different degrees of "drift" tendencies. Therefore, it is very difficult to make high-performance and high-quality gas alarms. When choosing to purchase a gas alarm, pay attention to the following points:

Gas type

According to the type of fuel gas used, gas alarms are generally not universal, natural gas alarms use natural gas, artificial gas alarm should use artificial gas alarm, liquefied petroleum gas occasions should use liquefied petroleum gas alarm or use of liquefied petroleum gas Gas calibration of the general combustible gas detection alarm (Note: Different parts of the gas composition, use local gas components for calibration and detection of gas alarm).

stability

The purchase of gas alarms should be based on the products of companies with good reputation in the market. It is advisable to conduct research prior to purchase. Because on the one hand, the alarm products on the market are mixed and the users are not very familiar with this product; on the other hand, the alarm is a The long-term use of the product, no gas leakage can not see the performance and quality of the period, so its long-term stability requirements are high, and the current gas alarm product standards in the assessment of its long-term stability is still insufficient, so the production enterprises The research and quality control of the product is very important for the product's performance and quality. You can also learn from the long-term use of the user's use of the product and product testing units issued by the use of gas alarms over the years the test results for reference.

Service life

The use of gas alarm / combustible gas detector should pay attention to the long-term stability and service life of the alarm. The alarm, especially its sensor, has a long life. It should be known to the seller and the manufacturer at the time of purchase.

Select the gas alarm, pay attention to the installation, the correct installation.

Home gas alarms have an alarm value, which is usually 25% LEL (LEL is the lower blast limit). When the combustible gas in the air reaches the set value, the alarm will sound and light alarm, prompting the user to leak gas, if there is a linked solenoid valve, when the solenoid valve receives the alarm signal announced, it will take the initiative to cut off the valve, and then Obstructing the continued leakage of gas, if there is an exhaust fan installed, it will automatically start exhaust ventilation and give indoor ventilation.

Household gas alarms are noted in the installation process: (1) Gas alarms cannot have strong electromagnetic fields (such as high-power motors and transformers) that affect the operation of the exterior of the gas alarm; (2) Gas alarms are safe and sound. The light manifestation function should be installed in the place where the operator can easily see and hear, so as to eliminate the hidden trouble in time; (3) The height of the gas detector is usually 160-170cm, so that the maintenance personnel can carry out normal maintenance; (4) ) The probe is primarily a touch element of the touch gas sensor. The platinum wire coil is coated with alumina and a binder to form a spherical shape, and platinum, palladium and other rare metals are attached to the outer and outer surfaces of the probe. Therefore, must be careful when using the device to prevent the probe from being broken. (5) The gas alarm is not the same according to the density of the gas to be measured, and the position of the indoor probe is probably not the same. When the measured gas density is less than the air density, the probe should be installed 30cm away from the roof, and the direction should be downwards; otherwise, the probe should be installed 30cm above the ground, and the direction should be upward; (6) The device of the open-air probe can be based on the measured gas. Density picking device height, with particular attention to the probe should be installed on the leeward side; (7) tie cable should be added to the maintenance of the casing, the best place in the probe to add a metal hose, and pay attention to be with the factory explosion-proof grade common; ( 8) After the device is commissioned, be sure to install a breathable waterproof cover to prevent rain from entering the damaged probe.

With the gas alarm installed, you can provide more protection for your home. When the natural gas leaks, it may cause the gas alarm to alarm and automatically cut off the gas valve. What should we do when the alarm sounds?

In general, many households buy gas alarms have linked shut-off valve and start exhaust function, that is, when the gas leak reaches a certain concentration, the gas alarm will ring, and automatically cut off the solenoid valve, and start the exhaust Scattered. When we are at home, first hear the alarm sounded, do not panic, the first time to close the pipe valve and gas stove valve, and open the doors and windows ventilation, this time is strictly prohibited open fire, find out the cause of the alarm and take measures to eliminate hidden dangers . When all hidden dangers are eliminated, the alarm will be automatically cut off after the alarm has been triggered for a period of time. We also need to manually recover. The valve connected to the alarm will generally see a prominent place, and some will have a cover. . Remove the cover, usually red, pay attention to the correct way is not to turn the switch but hold the switch up, feel a little click, said the valve open, at this time to restore gas supply. If, shortly after ventilation, the alarm continues to sound, and if there is no leak, it may be a problem with the alarm. You may consider replacing the alarm. The life of general gas alarms is 3-5 years.

Comparison of Output Value and Growth of China Combustible Gas Alarm Industry in 2008-2013

Conclusion: From January to June 2013, the output value of China's combustible gas alarm industry reached 2.126 billion yuan, a year-on-year increase of 27.9%. In 2012, the output value of China's combustible gas alarm industry reached 4.115 billion yuan, an increase of 31.3% year-on-year. In the past two years, with the introduction of the concept of smart homes and the improvement of home safety awareness, the usage rate of gas alarms has been further increased, and the combination of gas alarms and smart home controls has led to more efficient and more effective alarm linkage.