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玻璃钢通风管道和排烟管道的区别

发布人:http://www.sftfgd.com   发布时间:2023-02-15 14:25:50

火灾易产生大量烟雾,烟雾具有毒性、调暗性和恐怖性,严重影响人员疏散和灭火救援行动,是造成火灾人员伤亡的主要因素之一。因此,在高层建筑、地下建筑、石化企业、电子厂等,一般都按要求设置防排烟设施。但从消防部门对消防设施的检查情况看,这些建筑的防排烟系统排烟能力往往达不到规定要求。

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.

玻璃钢通风管道厂家给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.排烟口全部设在室外。为了防止雨水和鸟类进入,排烟口一般设置防鸟栏和防雨页。如果设置防雨页,阻力会很大,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. QQ截图20170428145456.png

其他的位于房间里。排烟口不是直接对着窗户,而是对准墙面,这样会影响排烟。

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.管道内阻力大。有的管道有蛇皮袋、塑料膜等杂物没有清理,有的砖砌排气管道没有粉刷,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.为防震,排烟风道一般采用软接头,与硬管连接不紧密,经常发生漏烟现象。

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.排烟口规格不符合设计规范,排烟量自然减少。

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

5.部分风机安装与管道安装错位,影响烟气循环。

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

玻璃钢通风管道

GRP ventilation duct

6.管道规格不一致的,管道截面积应与设计截面积相匹配,部分会因与其他管道安装冲突而减少管道截面积,影响烟气吞吐量。

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.巡检时风速表的位置和距离也可能对实测风速有一定影响,造成实测数据不准确,影响排烟量的计算。

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.管子道路接缝漏烟,个别采用无机或阻燃玻璃钢风管,甚在排烟机启动后破裂。

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.管子过长,弯头转角多,阻力大,影响烟气流量。

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

10.排烟机根据排烟现场所需烟量设计。当承担排烟用防烟隔断或净空高度大于6m无防火隔断的房间时,应按每不小于60m3/h的面积计算。当采取两个或两个防烟隔断和中庭的大小,另有规定。如果没有设计余地或购买时风机规格型号不匹配,会直接影响排烟。

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.有的排烟口装有调节阀,有的为板式排烟阀,多数有联动装置,开启联动时不能全开,影响排烟。

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.排烟机在运输过程中或运输到施工现场时碰撞造成排烟风机外壳变形,也会影响排烟量。

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.排烟防火阀质量差,内部弹簧张力不足。烟气循环时,阀板不能保持水平,产生一定的倾角,影响烟气的通过。

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.送检所用风速仪虽然是消防科研机构选用的产品,但可能使用时间较长,速度可能不准确。

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.


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