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The fire damper of the smoke exhaust system in the construction of the smoke exhaust hood is mainly used in the natural ventilation and air conditioning units. The fire damper of the smoke exhaust system is generally installed in the fire compartment between the exhaust system and the main engine room of the air conditioning unit. It is a 70 ℃ fire damper. When it is normally opened and closed, when the temperature of the smoke exhaust system reaches 70 ℃, the smoke temperature in the ventilation duct reaches 70 ℃. Fully automatic operation method.

排煙防火閥主要應(yīng)用于機(jī)械設(shè)備排煙系統(tǒng)軟件，是一種280℃的防火閥，正常為常閉，火災(zāi)發(fā)生時(shí)受火警自動(dòng)報(bào)警的連動(dòng)數(shù)據(jù)信號(hào)全部自動(dòng)打開(kāi)，另外配有手動(dòng)執(zhí)行機(jī)構(gòu)，既可以手動(dòng)開(kāi)啟，又可以在消防安 全監(jiān)控中 心遙控開(kāi)啟(即連動(dòng)操縱，手動(dòng)操作，自動(dòng)控制系統(tǒng)三種方式)，一般安裝在排煙口，通風(fēng)風(fēng)管穿越重生防火安 全，防煙分區(qū)隔開(kāi)處，排煙主機(jī)房通風(fēng)風(fēng)管過(guò)墻處，當(dāng)通風(fēng)風(fēng)管溫度達(dá)到280度時(shí)關(guān)閉。

Smoke extraction fire damper is mainly used in the smoke extraction system software of mechanical equipment. It is a 280 ℃ fire damper, which is normally closed. When a fire occurs, all the linked data signals automatically open. In addition, it is equipped with a manual actuator, which can be opened manually or remotely in the fire safety monitoring center, The automatic control system is generally installed at the smoke exhaust outlet, the place where the ventilation duct passes through the rebirth fire safety, the place where the smoke control partition is separated, and the place where the ventilation duct of the smoke exhaust main engine room passes through the wall. When the temperature of the ventilation duct reaches 280 ℃, it will be closed.

其中一個(gè)方法是將排煙口的排煙閥和控制模塊撤消，將出風(fēng)口改為單面百葉窗；另一個(gè)方法是將各層排煙頭上電動(dòng)常閉的防火閥改為開(kāi)啟與關(guān)閉均為280度關(guān)閉的防火閥，

One of the methods is to cancel the exhaust valve and control module of the exhaust outlet, and change the air outlet into a single-sided shutter; Another method is to change the electric normally closed fire damper on the smoke exhaust head of each floor into a fire damper with 280 degree opening and closing,

排煙口按所受壓力系統(tǒng)分區(qū)進(jìn)行開(kāi)啟操作，排煙口可由消防安全管理遠(yuǎn)程控制，并可就地手動(dòng)開(kāi)啟.全部排煙風(fēng)機(jī)設(shè)置一個(gè)全自動(dòng)關(guān)閉的排煙防火閥，當(dāng)煙氣溫度達(dá)到280℃時(shí)，該防火閥將全自動(dòng)關(guān)閉，并且連動(dòng)排煙風(fēng)機(jī)終止，并規(guī)定離心風(fēng)機(jī)可在280℃時(shí)持續(xù)工作中30min。

The smoke outlet is opened according to the pressure system partition. The smoke outlet can be remotely controlled by the fire safety management center, and can be manually opened locally. All smoke exhaust fans are equipped with a fully automatic fire damper. When the flue gas temperature reaches 280 ℃, the fire damper will be fully automatic closed, and the continuous smoke exhaust fan will terminate, The centrifugal fan can work continuously for 30 minutes at 280 ℃.

全部安裝在裝修吊頂內(nèi)的排煙管路均選用難燃原料包，且與之的間距不小于mm，當(dāng)空調(diào)通風(fēng)管穿過(guò)重生防火安全區(qū)時(shí)，該不燃原料包被不燃.7甲ld乙ld丙類生產(chǎn)制造工業(yè)廠房的送ld排風(fēng)系統(tǒng)道宜分層設(shè)置，但進(jìn)至生產(chǎn)制造工業(yè)廠房的水平或豎直排風(fēng)管設(shè)置一個(gè)防火閥時(shí)，每層均要加水。

When the central air conditioning ventilation pipe passes through the fire safety area, the non combustible material package is non combustible. The air supply and exhaust system of 7 class A, B and C industrial buildings should be arranged in layers, However, when a fire damper is set up in the horizontal or vertical exhaust pipe of the manufacturing industrial plant, water should be added to each floor.