01.

What exactly is a fire shutter?

1What is a fire shutter?

According to the terminology interpretation of the specification GB 50877-2014 "fire shutter, fire door, fire window construction and acceptance specification," fire shutter refers to a specific time, together with the framework, Roller Shade can meet the fire resistance integrity, thermal insulation, and other requirements of the shutter.

Vertical fire shutter refers to the rolling shutter work for the vertical direction of rise or fall.

In fact, the fire shutter is a fire separator, which can divide the building space into a number of fire partitions, so that in the event of a fire, each fire partition can be in a certain period of time not to spread outward expansion, in order to effectively control the fire, to create conditions for fighting fire.

2 Fire Shutter Characteristics

a, automatic control; safe, dependable, and quick operation

b, smoke from fire, long fire resistance time

c, can be used normally in the event of a power outage, high safety factor

d, can be linked to the fire alarm system, allowing for timely detection and notification of fires, as well as automatic implementation of some fire prevention measures.

e. Prevent the spread of fire and the evacuation of people

fDiverse and widely used forms

3 Different types of fire shutters

According to the GB 14102-2005 specification "fire shutter" content, fire shutter is classified into three types: steel fire shutter, inorganic fiber composite fire shutter, and special fire shutter.

a, fire shutter made of steel (symbol for GFJ)

With steel materials to make the curtain plate, guide rail, seat plate, lintel, box, and so on, as well as the roll door machine's fire shutter and control box.

Fire shutter made of steel

bFire shutter made of inorganic fiber composite (symbol WFJ)

The curtain surface is made of inorganic fiber (with stainless steel wire or stainless steel wire rope inside), and steel is used to make the plywood, guide rail, seat plate, lintel, box body, and so on, as well as the fire shutter with the door rolling machine and control box.

Composite inorganic fiber fire shutter

c, unique fire shutter (symbol TFJ)

Refers to the steel or inorganic fiber material used for the curtain surface, steel material used for the guide rail, seat plate, plywood, lintel, box, and so on, as well as the roll door machine and control box that meet the shutter's fire integrity, thermal insulation, and smoke performance requirements.

Fire-resistant shutter (steel)

Rolling fireproof shutter (inorganic fiber)

02.

Fire shutter structural composition and operation principle

1. Fire shutter structural composition

A fire shutter is typically made up of a rolling door machine, scroll, curtain body, package box, track, controller, manual button box,curtain styles temperature and smoke detectors, and other components.

a. A roller door machine

It is primarily made up of a motor, a motor plate (motor bracket plate), a reduction box, a braking system (electromagnetic brake, brake disc, etc.), a limiter, manual operation parts, a temperature control release device, and other components.

Rollers for doors

b、Reel

The bearing on the motor plate drives the reel to rotate, causing the curtain surface fixed to the reel to rotate and the curtain surface to rise and fall.

Reel

cBody of the curtain

The curtain surface is usually made of steel or inorganic fiber material, and it is the most important component of a fireproof shutter because it prevents fire and smoke from entering. The curtain surface's base is usually made of a heavy metal material that drives the curtain surface down after the motor brake disk is released.

Steel

Fiber that is not organic

d、Package

The upper part of the fire shutter is made of steel plate, fireproof board, and other box-shaped objects that protect and cover the rolling door machine, scroll, curtain body, and other components.

box for packages

e、Track

Typically embedded in the fire shutter cavity as the running track of the curtain body rising or falling, while ensuring the fire shutter's airtightness and fluidity.

Track

f、Controller

Receive the start command, control the motor to drive the scroll, rotate the curtain surface, and receive and feedback the related signal all at the same time.

Controller

gManual switch box

Belonging to the controller's supporting parts, the fire shutter can be manually controlled to begin rising, falling, and stopping.

Box with manual buttons

Temperature and smoke detectors that are sensitive

High-sensitivity detection system used to provide early warning of fires. An alarm notification will be sent automatically if the temperature or smoke concentration is detected to be too high.

Sensor that detects temperature

Detectors of smoke

2The Operation of a Fire Shutter

In the event of a fire, smoke detectors alarm and send the fire signal to the central fire control system, which identifies the area and issues a start signal, causing the fire shutter in the fire area to descend automatically.

When it reaches a height of 1.8m above the ground, it stops for a short time to evacuate people before continuing to fall until it is completely closed.

03.

Fire shutter installation and design considerations

The installation of a special fire shutter, for example.