Anti-insect screen for fire alarm is one of the fire alarm devices that are widely common in today's life with the main function of recognizing and giving fire and explosion warnings.
Anti-insect screen for fire alarm has nice design to have the ability to sense and detect smoke - one of the most effective ways to warn of a fire today, most screens will send a signal to the alarm center on fire. Some screens are for home use, which can sound an alarm on the spot when there is a fire.
Smoke sensors typically come in a disc-shaped plastic housing approximately 100 mm (4 in) in diameter, or 150 mm (6 in) in diameter, with the common connection.
Regarding smoke detection technology, smoke sensors divide into two types:
In particular, the sensor difficult to use photoelectric technology prefers and more popular application than the ionization smoke sensor. The photoelectric smoke sensor designs to detect smoke using a small light source. A lens focuses the light into a beam and a photoelectric sensor, is angled to the infrared beam.
All of the above components are placed in an optical chamber, also known as a smoke chamber. The optical chamber has a special structure, so that outside light cannot enter, but smoke can easily enter. The outside of the optical chamber has anti-insect screen for fire alarm, to prevent dust and insects from getting inside.
In the normal case, the light beam generated by the infrared illuminator travels in a straight line and does not reach the optical sensor head.
Anti-insect screen for fire alarm detects smoldering fires well. Optical smoke sensors respond more slowly than ionic sensors to rapidly spreading fires. Today, some modern optical smoke sensors have very high sensitivity. It covers the range of ion smoke sensors, and can completely replace ion sensors.
The most common application of the screen is for installation in room smoke detectors (ceilings), duct smoke detectors (such as ducts) for the purpose of detecting and detecting smoke and providing alarms. Warn as soon as possible;
Anti-insect screen for fire alarm systems are designed for early detection of;
Early detection is also key to protecting life and property and giving emergency responders enough time to provide timely assistance while a fire or toxic gas is still small.
In this article, we will delve into the structure, operating principle and common automatic fire alarm systems on the market.
Fire alarm systems are designed to alert us in an emergency so we can take action to protect ourselves, our families, our employees and everyone else.
An anti-insect screen for fire alarm system consists of 03 main components which are the fire alarm center, input sensor and output warning device. The central fire alarm cabinet design in the form of a cabinet has a backup battery and has phone SIM modules for emergency dialing.
Construction of fire alarm system
Working principle diagram of anti-insect screen for fire alarm system
Today's manual anti-insect screen for fire alarm systems is almost no longer common, because their limitation is having someone on duty 24/7 to press the fire alarm button when they detect a fire. Moreover, today all fire alarm systems are kind of fire alarm systems automatically.
Automatic fire alarm system is easy to divide into 04 main types:
We'll look at each type:
The physical cable will connect the sensor probes and the emergency push button. The signal comes to the fire alarm control panel.
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Push buttons and sensor probes will be arranged in each Zone cluster to determine which Zone is alarming. Each Zone will correspond to 1 indicator light on the control panel.
When installing anti-insect screen for fire alarm, we divide the building into many small Zones and the fewer detectors each Zone has, the more accurate the location of the alarm will be.
This is very important for building management or homeowners when it is necessary to know exactly which “Zone” is experiencing a fire problem to promptly respond.
Addressable fire alarm system pinpoints the exact location of a fire, explosion, fire or toxic gas incident. The principle of an addressable fire alarm system is similar to a conventional fire alarm system.
The only difference of an addressable fire alarm system knows the exact location of which location is triggering the alarm (instead of just generalizing by zone area like a conventional system).
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