Correct installation and use of gas alarms
As we all know, carbon monoxide is a highly toxic gas, healthy people in the air containing 1% of carbon monoxide, 10 minutes will produce helium, will die in half an hour. Therefore, when coal gas leaks, there is both the danger of explosion and the risk of carbon monoxide poisoning (direct poisoning). In addition, carbon monoxide poisoning (exhaust poisoning) also occurs when ventilation is poor using gas water heaters or coal stoves. At present, due to the lack of people’s awareness of safety, there is a lack of necessary understanding of the installation of gas alarms, and even if they have been installed, they are occasionally inspected and it is not unusual for them to malfunction or stop. In fact, the installation of gas alarms is conducive to early detection of gas leaks.
Household gas alarms are generally installed in the kitchen. When gas leaks, the alarm can sound and light alarm, or accompanied by a digital display, while linkage with external devices. Some alarms can automatically open the exhaust fan and discharge the gas to the outside. Some alarms can automatically shut off the gas valve during the alarm to prevent gas from leaking. The heart of the gas alarm is the gas sensor, commonly known as the "electronic nose." When the gas sensor encounters gas, the sensor resistance changes with the gas concentration, and an electrical signal is generated accordingly, and the gas supply alarm is processed at a later stage. After the electronic circuit processing becomes a voltage signal with a proportional change in concentration, it is compensated by a linear circuit to linearize the signal. After the microcomputer processing and logic analysis, various control signals are output, that is, when the gas concentration reaches the alarm setting value, the gas The alarm emits an audible and visual alarm signal and can display the gas concentration or activate the external transport equipment (such as exhaust fans and solenoid valves). However, the installation does not mean that everything will be fine, but at the same time we must pay attention to the following points:
First, the correct choice of installation location According to the requirements of the relevant departments, when the new home into the household, complete sets of gas alarms are installed near the gas meter in the kitchen, many household combustible gas alarm instructions also require installation in the kitchen and so on. However, if the gas is lighter than air, if it is not found in time after the leak, it will go upstairs through exhaust vents, floor drains, etc., which may cause poisoning to residents upstairs. Alarms have appeared on the market one after another. The mother machine is installed in the kitchen. The child machine can be installed in the bedroom. Many citizens also hang alarms in the kitchen, bathroom and bedroom.
Many people who understand alarm technology have installed at least two alarms in their own homes. The gas alarm on the kitchen can detect the leakage of the gas or the leak in the indoor pipeline; the alarm installed near the exhaust outlet of the bathroom can promptly detect the gas flowing downstairs or along the sewer, etc.; Alarm to remind people in their sleep.
2. At least one alarm should be conducted every month. Regular gas alarms are marked on the manual with a service life of over 90% for 3 years. Some brands of household combustible gas alarms are also specified in the manual. , The residents conduct at least one self-test on the alarm device and introduce the self-test mode.
However, quite a number of residents who have installed alarms have never checked the alarms in their homes, but rather subjectively believe that as long as the alarms are not sounded, the indicator lights to indicate that they are working properly.
The alarm manual is accompanied by a "Self Inspection Guide"
Professionals pointed out that the sensor is a sensitive device whose sensitivity determines the reliability of the alarm. When the sensor or alarm reaches the specified period as a whole, the alarm must be recalibrated or replaced. The alarm manual is accompanied by a self-inspection guide. It is also possible to use a lighter or an alcohol swab to release a small amount of gas at the bottom of the alarm hole at the bottom of the alarm or swing several times while the power is on. Some manufacturers have also upgraded the alarm sensors. The alarm self-test requires the release of a small amount of hydrogen or a gas containing hydrogen.
Third, the alarm alarm, it should promptly cut off the gas and ventilation Professionals said that when the alarm alarm, not to explain that people have to poison, but shows that there is a suspicious gas leak. The country has strict regulations on the range of alarm settings for gas alarms. This set value is lower than the value that may cause harm to human bodies. In other words, when an alarm is issued to an alarm, a normal person will not cause adverse effects on the body even if he or she is standing by the leakage point, as long as the gas and ventilation are cut off in time.
Fourth, put a thin stockings on the alarm, you can prevent false alarms from entering the In addition, due to the low temperature in the north, the heat generated by the alarm powered by electricity for many years will attract mosquitoes, cockroaches, etc., resulting in false alarm. Experts suggest that when similar alarms occur, thin stockings can be used to set up the alarm. The tightly-packed network of stockings can effectively block the intrusion alarm, and the good breathability will not affect the sensitivity of the alarm to suspicious gases.
Household gas alarms are generally installed in the kitchen. When gas leaks, the alarm can sound and light alarm, or accompanied by a digital display, while linkage with external devices. Some alarms can automatically open the exhaust fan and discharge the gas to the outside. Some alarms can automatically shut off the gas valve during the alarm to prevent gas from leaking. The heart of the gas alarm is the gas sensor, commonly known as the "electronic nose." When the gas sensor encounters gas, the sensor resistance changes with the gas concentration, and an electrical signal is generated accordingly, and the gas supply alarm is processed at a later stage. After the electronic circuit processing becomes a voltage signal with a proportional change in concentration, it is compensated by a linear circuit to linearize the signal. After the microcomputer processing and logic analysis, various control signals are output, that is, when the gas concentration reaches the alarm setting value, the gas The alarm emits an audible and visual alarm signal and can display the gas concentration or activate the external transport equipment (such as exhaust fans and solenoid valves). However, the installation does not mean that everything will be fine, but at the same time we must pay attention to the following points:
First, the correct choice of installation location According to the requirements of the relevant departments, when the new home into the household, complete sets of gas alarms are installed near the gas meter in the kitchen, many household combustible gas alarm instructions also require installation in the kitchen and so on. However, if the gas is lighter than air, if it is not found in time after the leak, it will go upstairs through exhaust vents, floor drains, etc., which may cause poisoning to residents upstairs. Alarms have appeared on the market one after another. The mother machine is installed in the kitchen. The child machine can be installed in the bedroom. Many citizens also hang alarms in the kitchen, bathroom and bedroom.
Many people who understand alarm technology have installed at least two alarms in their own homes. The gas alarm on the kitchen can detect the leakage of the gas or the leak in the indoor pipeline; the alarm installed near the exhaust outlet of the bathroom can promptly detect the gas flowing downstairs or along the sewer, etc.; Alarm to remind people in their sleep.
2. At least one alarm should be conducted every month. Regular gas alarms are marked on the manual with a service life of over 90% for 3 years. Some brands of household combustible gas alarms are also specified in the manual. , The residents conduct at least one self-test on the alarm device and introduce the self-test mode.
However, quite a number of residents who have installed alarms have never checked the alarms in their homes, but rather subjectively believe that as long as the alarms are not sounded, the indicator lights to indicate that they are working properly.
The alarm manual is accompanied by a "Self Inspection Guide"
Professionals pointed out that the sensor is a sensitive device whose sensitivity determines the reliability of the alarm. When the sensor or alarm reaches the specified period as a whole, the alarm must be recalibrated or replaced. The alarm manual is accompanied by a self-inspection guide. It is also possible to use a lighter or an alcohol swab to release a small amount of gas at the bottom of the alarm hole at the bottom of the alarm or swing several times while the power is on. Some manufacturers have also upgraded the alarm sensors. The alarm self-test requires the release of a small amount of hydrogen or a gas containing hydrogen.
Third, the alarm alarm, it should promptly cut off the gas and ventilation Professionals said that when the alarm alarm, not to explain that people have to poison, but shows that there is a suspicious gas leak. The country has strict regulations on the range of alarm settings for gas alarms. This set value is lower than the value that may cause harm to human bodies. In other words, when an alarm is issued to an alarm, a normal person will not cause adverse effects on the body even if he or she is standing by the leakage point, as long as the gas and ventilation are cut off in time.
Fourth, put a thin stockings on the alarm, you can prevent false alarms from entering the In addition, due to the low temperature in the north, the heat generated by the alarm powered by electricity for many years will attract mosquitoes, cockroaches, etc., resulting in false alarm. Experts suggest that when similar alarms occur, thin stockings can be used to set up the alarm. The tightly-packed network of stockings can effectively block the intrusion alarm, and the good breathability will not affect the sensitivity of the alarm to suspicious gases.