The working principle analysis of the smoke detector and the introduction of the application environment!

There are many fire hazards in life. In order to avoid and prevent these accidents, we will use gas detectors, temperature detectors and smoke detectors to detect different occasions to ensure environmental safety. Let us take a look today. Smoke detectors in these three types of fire detectors.

The smoke detector is to prevent fire by monitoring the concentration of smoke. The smoke detector is equipped with ion smoke sensor. The ion smoke sensor is a technologically advanced, stable and reliable sensor. It is widely used in various fire protection. In the alarm system, the performance is much better than the fire alarm of the gas sensor.

It has a radiation source é•…241 inside and outside the ionization chamber, and the positive and negative ions generated by ionization move to the positive and negative electrodes under the action of the electric field. Under normal conditions, the current and voltage of the internal and external ionization chambers are stable. Once there is smoke, escape the ionization chamber. Interfering with the normal movement of charged particles, the current and voltage will change, destroying the balance between the internal and external ionization chambers, so the wireless transmitter sends a wireless alarm signal to inform the remote receiving host to transmit the alarm information.

After understanding the working principle of the smoke detector , it is obvious to the place where it fits:

1) Restaurants, hotels, teaching buildings, office buildings, bedrooms, offices, etc.;

2) Electronic computer room, communication room, movie or TV screening room, etc.;

3) Stairs, walkways, elevator rooms, etc.;

4) library, archives, etc.;

5) Locations with electrical fire hazards.

Supplement: A point type temperature detector should be selected for a place that meets one of the following conditions:

1) Relative humidity is often greater than 95%;

2) smokeless fires;

3) There is a lot of dust;

4) There are smoke and vapor retention under normal conditions;

5) kitchen, boiler room, generator room, drying workshop, etc.;

6) smoking room, etc.;

7) Other halls and public places where smoking detectors are not suitable.

These places are places where fire is easy to generate smoke, so smoke detectors are more suitable than other types of fire detectors.

Like a gas detector, it is only suitable for applications where there is a flammable gas application, and the application conditions are limited.