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The application of PM2.5 dust sensor in the smoke alarm of the workshop

Update: 2020-01-10 16:21 Source: LUFTMY Reading: ↻ News
 

Among all kinds of disasters, fire is one of the most common disasters in public security and social development. The ability of human beings to use and control fire is an important indicator of civilization progress. However, losing control of fire will bring disaster to human beings. Therefore, when people use fire, they need to constantly summarize the law of fire occurrence and reduce the fire and its harm to human beings as much as possible.

The application of PM2.5 dust sensor in the smoke alarm of the workshop - LUFTMY

The application of PM2.5 dust sensor in the smoke alarm of the workshop

Generally, places such as residential areas and factories are very prone to fire, and there are many causes of fire, such as short circuit caused by nonstandard practical electrical appliances, smoking in the environment with inflammable and explosive objects, etc. Once there is a fire, it will certainly cause economic losses, and serious casualties may occur. Therefore, it is necessary to carry out fire prevention and early warning for the environment such as the factory buildings in the community.

Usually, if a fire breaks out, it is very intense. Fire fighting and rescue time is short and difficult. If the rescue is not timely, it is easy to cause serious casualties and economic losses. And if the fire source can be found as early as possible, it can greatly improve the rescue effect and reduce the occurrence of fire. The smoke alarm with PM2.5 dust sensor can send out alarm signal at the first time, and can be put out in time when the fire does not cause any threat.

In 2014, a fire broke out in an abandoned factory in Hangzhou. Thick white smoke was emitted from the cast iron at the site, and the flame continued to spread, but the factory did not install a fire smoke alarm. After the fire department received the alarm, three fire trucks were sent to the scene to put out the fire. After nearly 30 minutes of intense work, the fire was basically controlled. After the firefighters removed the iron plate, they found that the burning materials were some industrial paper, rubber materials, etc. To make sure they don't burn again, firefighters clean up the material.

Generally speaking, the flow of people in the factory warehouse is not very large, but the potential risk of fire is very high. Therefore, it is suggested that the factory should install smoke alarm with PM2.5 dust sensor according to the warehouse area to better prevent fire. It is recommended to use the hpd05 infrared PM2.5 sensor in the smoke alarm:

HPD05 Infrared PM2.5 Sensor Module - LUFTMY

HPD05 Infrared PM2.5 Sensor Module

Hpd05 is a small module which uses the principle of optical scattering to detect the dust particles in the air. It has the advantages of small volume, high detection accuracy, good repeatability, good consistency, continuous real-time response, strong anti-interference ability, 100% detection and calibration of the sensor.

The principle of smoke alarm is to detect the smoke concentration in the air through PM2.5 dust sensor. Usually, in addition to the fire, there will be a lot of smoke in case of a fire. At this time, PM2.5 dust sensor can detect these smoke in time.

These smoke are actually tiny solid particles suspended in the air. PM2.5 dust sensor, a smoke alarm sensor, uses the principle that particles have reflective effect on the light. The internal image sensor detects the infrared light reflected by the infrared light-emitting diode through the dust particle flow, and then detects the dust in the air to determine its concentration. The higher the concentration, the stronger the reflected light.

When the PM2.5 dust sensor in the fire smoke alarm detects that the smoke concentration exceeds the set value, the circuit generates an alarm signal to activate the field alarm device. For networked equipment, the wireless communication module can be used for remote fire rescue, and send the relevant location information to the alarm platform for timely rescue.

LUFTMY focuses on the research, production and sales of optical particle sensor technology. Under the guidance of the corporate culture of "craftsmen build dreams", adhering to the service tenet of "customer first", through continuous technological innovation, it has applied for and obtained a number of invention patents, utility model patents, core algorithm software copyright. LUFTMY high quality infrared smoke sensor and other sensors are widely praised by the industry in measuring accuracy, stability, consistency error, anti-interference and other performance indicators.

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