玻璃鋼通風管道和排煙管道的區(qū)別

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火災易產(chǎn)生大量煙霧，煙霧具有毒性、調暗性和恐怖性，嚴重影響人員疏散和滅火救援行動，是造成火災人員傷亡的主要因素之一。因此，在高層建筑、地下建筑、石化企業(yè)、電子廠等，一般都按要求設置防排煙設施。但從消防部門對消防設施的檢查情況看，這些建筑的防排煙系統(tǒng)排煙能力往往達不到規(guī)定要求。

The fire is prone to produce a large amount of smoke, which is toxic, darkening and terrorist, seriously affecting the evacuation and fire fighting and rescue operations, and is one of the main factors causing casualties in the fire. Therefore, smoke control facilities are generally set up in high-rise buildings, underground buildings, petrochemical enterprises, electronic plants, etc. as required. However, according to the inspection of fire-fighting facilities by the fire department, the smoke exhaust capacity of the smoke control system of these buildings often fails to meet the specified requirements.

玻璃鋼通風管道廠家給大家分析的主要原因有：

The main reasons analyzed by the manufacturer of GRP ventilation duct are as follows:

1.排煙口全部設在室外。為了防止雨水和鳥類進入，排煙口一般設置防鳥欄和防雨頁。如果設置防雨頁，阻力會很大，而且

1. All smoke outlets are set outdoors. In order to prevent rain and birds from entering, the smoke outlet is generally equipped with bird bars and rain-proof leaves. If the rain-proof page is set, the resistance will be large, and

2. 
   

其他的位于房間里。排煙口不是直接對著窗戶，而是對準墻面，這樣會影響排煙。

The others are in the room. The smoke outlet is not directly facing the window, but aiming at the wall, which will affect the smoke exhaust.

2.管道內阻力大。有的管道有蛇皮袋、塑料膜等雜物沒有清理，有的磚砌排氣管道沒有粉刷，不光滑，阻力很大。

2. The resistance in the pipeline is large. Some pipes have snakeskin bags, plastic film and other sundries that have not been cleaned, and some brick exhaust pipes have not been painted, are not smooth and have great resistance.

3.為防震，排煙風道一般采用軟接頭，與硬管連接不緊密，經(jīng)常發(fā)生漏煙現(xiàn)象。

3. In order to prevent vibration, the smoke exhaust duct generally adopts soft joints, which are not tightly connected with the hard pipes, and often lead to smoke leakage.

4.排煙口規(guī)格不符合設計規(guī)范，排煙量自然減少。

4. The specification of the smoke outlet does not meet the design specification, and the smoke exhaust volume is naturally reduced.

5.部分風機安裝與管道安裝錯位，影響煙氣循環(huán)。

5. The installation of some fans and pipes is misplaced, affecting the flue gas circulation.

玻璃鋼通風管道

GRP ventilation duct

6.管道規(guī)格不一致的，管道截面積應與設計截面積相匹配，部分會因與其他管道安裝沖突而減少管道截面積，影響煙氣吞吐量。

6. If the pipe specifications are not consistent, the sectional area of the pipe should match the design sectional area. Some of them will reduce the sectional area of the pipe due to the conflict with other pipe installation and affect the flue gas throughput.

7.巡檢時風速表的位置和距離也可能對實測風速有一定影響，造成實測數(shù)據(jù)不準確，影響排煙量的計算。

7. The location and distance of the anemometer during the patrol inspection may also have a certain impact on the measured wind speed, resulting in inaccurate measured data and affecting the calculation of smoke exhaust.

8.管子道路接縫漏煙，個別采用無機或阻燃玻璃鋼風管，甚在排煙機啟動后破裂。

8. The joints of pipes and roads leak smoke. Inorganic or flame-retardant FRP air ducts are used in some cases, and even break after the smoke exhaust fan is started.

9.管子過長，彎頭轉角多，阻力大，影響煙氣流量。

9. The pipe is too long, the elbow angle is too many, and the resistance is large, which affects the flue gas flow.

10.排煙機根據(jù)排煙現(xiàn)場所需煙量設計。當承擔排煙用防煙隔斷或凈空高度大于6m無防火隔斷的房間時，應按每不小于60m3/h的面積計算。當采取兩個或兩個防煙隔斷和中庭的大小，另有規(guī)定。如果沒有設計余地或購買時風機規(guī)格型號不匹配，會直接影響排煙。

10. The smoke exhaust fan is designed according to the smoke volume required at the smoke exhaust site. When smoke control partition is used for smoke extraction or the clearance height is more than 6m and there is no fire partition in the room, it shall be calculated as an area of no less than 60m3/h per square meter. When two or two smoke-proof partitions and the size of the atrium are adopted, there are other provisions. If there is no room for design or the fan specifications and models do not match at the time of purchase, smoke exhaust will be directly affected.

11.有的排煙口裝有調節(jié)閥，有的為板式排煙閥，多數(shù)有聯(lián)動裝置，開啟聯(lián)動時不能全開，影響排煙。

11. Some smoke outlets are equipped with regulating valves, some are plate-type smoke exhaust valves, and most have linkage devices. When the linkage is opened, it cannot be fully opened, which affects smoke exhaust.

12.排煙機在運輸過程中或運輸?shù)绞┕がF(xiàn)場時碰撞造成排煙風機外殼變形，也會影響排煙量。

12. The collision of the smoke exhaust fan during transportation or when it is transported to the construction site will cause the deformation of the shell of the smoke exhaust fan, which will also affect the smoke exhaust volume.

13.排煙防火閥質量差，內部彈簧張力不足。煙氣循環(huán)時，閥板不能保持水平，產(chǎn)生一定的傾角，影響煙氣的通過。

13. The quality of smoke exhaust fire damper is poor, and the internal spring tension is insufficient. During flue gas circulation, the valve plate can not be kept horizontal, resulting in a certain inclination, which affects the passage of flue gas.

14.送檢所用風速儀雖然是消防科研機構選用的產(chǎn)品，但可能使用時間較長，速度可能不準確。

14. Although the anemometer used for inspection is the product selected by the national fire research institute, it may be used for a long time and the speed may be inaccurate.