[Picture] What are fire windows and smoke exhaust windows?

What are fire-rated windows?

Window that, together with the frame, can meet fire-resistant integrity, thermal insulation and other requirements within a certain period of time.

Types of fire windows:

①According to material: wooden fireproof windows, aluminum alloy fireproof windows, steel fireproof windows, color steel fireproof windows, steel-wood composite fireproof windows;

②According to the opening status: fixed fire windows, movable fire windows;

③Classification according to thermal insulation conditions: Class A thermal insulation fire windows, Class B partial partitions Thermal fire-resistant windows, Class C non-thermal insulated fire-resistant windows;

Fire rated windows Fire resistance grade classification:

①A3 fire resistance and thermal insulation is not less than 3h;

②A2 fire resistance and thermal insulation is not less than 2h;

③A1.5 Class A fire-resistant windows: fire resistance and thermal insulation not less than 1.5h;

④A1.0 Class B defenseFire window: fire resistance and thermal insulation is not less than 1h;

⑤A0.5 Class C fire-resistant window: fire resistance and thermal insulation is not less than 0.5h;

The composition of fire windows:

Fire-resistant windows generally consist of window frames, window sashes, fire-resistant glass, window handle locks, window closers, etc.;

Fire-resistant window setting requirements:

①Fire-resistant windows should have an automatic closing function and should have smoke-tight performance after closing.

② Fire windows installed on fire walls and fire partition walls with a fire resistance limit of not less than 3.0h should be Class A fire windows;

③The fire-resistant windows in the rooms opening to the aisles in singing and dancing entertainment venues should be Class B fire-resistant windows;

④The fire-resistant windows installed on the outer wall of the refuge room or refuge area on the refuge floor should be Class B fire-resistant windows;

⑤ Fire windows installed on fire partition walls with a fire resistance limit of not less than 2.0h hours should be B Grade fire-resistant windows;

Fire-resistant window installation requirements:

①The installation of fireproof windows should comply with the construction drawings and design instructions;

② The fireproof seals embedded in the sealing groove of the fireproof window frame should be installed firmly and intact;

③The steel fireproof window frame should be filled with cement mortar, and the window frame and the wall should be firmly connected with embedded parts or expansion bolts;

④The installation of the movable fireproof window sash control opening and closing device should comply with the design and manufacturer\’s product instructions;

⑤ Movable fire-resistant windows should be equipped with a temperature-controlled release device that can control the automatic closing of the window sash in the event of a fire;

⑥The distance between the fixed points of the window frames of fire-resistant windows should not be greater than 600mm;

Fire window control:

① For fire equipment that requires linkage control of the automatic alarm system in case of fire, the linkage trigger signal should adopt the \”AND\” logical relationship between the alarm signals of two independent alarm trigger devices.

② The movable fire windows on the fire partition wall should automatically Close, and the closing signal should be fed back to the fire control room;

③The movable fire window should automatically close after receiving the closing instruction from the fire control room, and the closing signal should be fed back to the fire control room;

④ After the temperature control release device installed on the movable fire window is activated, it should automatically close within 60S;

What is a smoke exhaust window?

Also called natural smoke exhaust window, it is an openable exterior window with smoke exhaust function, which can be opened by automatic, manual, temperature-controlled release, etc.

Smog exhaust window setting regulations:

①Adopt Places with natural smoke exhaust systems should be equipped with natural smoke exhaust windows;

②The area of ​​the natural smoke exhaust window in the shared front room should not be less than 3㎡;

③The openable exterior window area of ​​the inner walkway should be greater than 2% of the walkway area;

④The window area of ​​the atrium\’s openable sky (or high window) should not be less than 5% of the atrium area;

⑤Natural smoke exhaust windows should be set on the outer wall or top of the smoke exhaust area;

⑥ When installing a smoke exhaust window on the exterior wall, it should be installed in the smoke storage bin. However, when the clear height of the walkway and indoor space is not greater than 3m, it can Set above 1/2 of the indoor clear height;

⑦The area is not greater than 2For a room of 00㎡, the opening direction of the smoke exhaust window is not limited;

⑧The smoke exhaust windows should be dispersed and evenly arranged, and the length of each group should not be greater than 3.0m;

⑨The horizontal distance between the nearest edges of the smoke exhaust windows set up on both sides of the firewall should not be less than 2.0m;

Smoke exhaust windows installed on the exterior walls of factories and warehouses should be evenly installed along the two opposite sides of the building;

When the smoke exhaust windows of factory buildings and warehouses are installed on the roof, they should be installed evenly on the roof and should be opened automatically;

The smoke exhaust window should be equipped with a manual opening device. If the smoke exhaust window is installed at a high position and is not convenient for direct opening, a manual opening device should be installed at a height of 1.3m~1.5m from the ground. ;

Atriums with a clear height greater than 9m should be equipped with centralized manual opening devices and automatic opening devices;

Business halls, exhibition halls and multi-functional halls with a building area greater than 2000㎡ should be equipped with centralized manual opening devices and automatic opening devices;

Smoke exhaust window control:

① Natural smoke exhaust windows can adopt two methods: automatic fire alarm system linkage and temperature release device linkage;

②The alarm signals of two independent fire detectors in the same smoke prevention zone are used as the linkage trigger signal for the opening of the smoke exhaust window and are linked by the fire linkage controller Control the opening of the smoke exhaust window and at the same time stop the air conditioning system of the smoke prevention zone;

③The manual control method of the smoke exhaust window should be manually opened on the fire linkage controller in the fire control room;

④The opening action signal of the smoke exhaust window should be fed back to the fire linkage controller in the fire control room;

Smoke exhaust window installation:

①The smoke exhaust window should be installed firmly and open and close flexibly;

②The manual opening device should be fixedly installed between 1.3m~1.5m above the ground for easy operation and obvious visibility;

③The installation of the smoke exhaust window drive device should comply with the design and manufacturer\’s installation Description, and should be flexible and reliable;