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防火卷帘门使用期间常有六个问题要明确

来源:http://www.jnhsjlm.com 日期:2022-07-05 发布人:hongshun
防火卷帘门广泛应用于工业与民用建筑的防火隔断区,能有效地阻止火势蔓延,保障生命财产安全,是现代建筑中不可缺少的防火设施。防火卷帘门使用期间常有六个问题要明确!
Fire shutter door is widely used in the fire partition area of industrial and civil buildings, which can effectively prevent the spread of fire and ensure the safety of life and property. It is an indispensable fire prevention facility in modern buildings. There are often six problems to be clarified during the use of fire shutter doors!
一、防火卷帘门帘体厚度问题:
1、 The thickness of fire shutter door curtain body:
门帘厚度问题门帘厚度即帘板所用钢板的厚度,目前普遍存在着偷工减料现象,有些厂家送交测试时采用较厚钢板的帘板,取得合格证后,则改用较薄的进行生产。由于在安装现场卷帘门的帘板厚度不易测量,容易蒙混过关,因此,有很多防火卷帘门因门帘厚度都未达到要求,降低使用寿命与耐火时限。
The thickness of the door curtain is the thickness of the steel plate used for the curtain plate. At present, there is a widespread phenomenon of cutting corners. Some manufacturers send curtain plates with thicker steel plates for testing. After obtaining the certificate of conformity, they use thinner ones for production. Because the thickness of the shutter plate of the rolling shutter door on the installation site is difficult to measure and easy to muddle through, many fire-proof rolling shutter doors have not met the requirements because of the thickness of the shutter, reducing the service life and fire resistance time limit.
二、防火卷帘门门楣结构问题:
2、 The lintel structure of fire shutter door:
门楣结构问题按国家标准防火卷帘门必须设置门楣结构,而目前普遍使用的是没有门楣的防火卷帘门,这种门发生火灾时阻止不了火势向上形成的强大冲击.导致烟气通过门楣向外蔓延。门楣处的密封性是防火、防烟的关键所在,若安装没有门楣结构的防火卷帘门,则不能真正起到防火阻隔的作用,形同虚设。
Lintel structure problem according to the national standard, the fire-proof rolling shutter door must be equipped with a lintel structure. At present, the fire-proof rolling shutter door without a lintel is widely used. This kind of door cannot prevent the strong impact of the upward fire in case of a fire, resulting in the smoke spreading outward through the lintel. The tightness of the lintel is the key to fire and smoke prevention. If the fire shutter door without the lintel structure is installed, it cannot really play the role of fire barrier and is in vain.
三、防火卷帘门导轨问题
3、 Problems of guide rail of fire shutter door
导轨问题导轨深度不够,结构与用料不当是许多大型卷帘门安装中普遍存在的问题。大型卷帘门导轨上一般应有一根能承受高强度的主构件.然而很多厂商用简易的轻型导轨来代替,一旦遇到火灾,门帘易从导轨脱出,起不到防火作用。
Guide rail problem the insufficient depth of guide rail and improper structure and materials are common problems in the installation of many large roller shutter doors. Generally, there should be a main component on the guide rail of large roller shutter door that can bear high strength. However, many manufacturers use simple light guide rail to replace it. In case of fire, the door curtain is easy to fall out of the guide rail and cannot play the role of fire prevention.
济南卷帘门厂
四、防火卷帘门的底帘问题
4、 The problem of the bottom curtain of the fireproof rolling shutter door
卷帘门底梁问题有的产品没有底梁,有的产品虽有底梁,但用料单薄。门帘的底梁是保持门帘强度重要构件,门帘下没有底梁就等于门帘下部少一个起坚固作用的边框,火场负压就会将整个门帘掀翻。
Roller shutter door sill problem some products do not have a sill, some products have a sill, but the material is thin. The bottom beam of the door curtain is an important component to maintain the strength of the door curtain. If there is no bottom beam under the door curtain, it means that there is less a solid frame under the door curtain, and the negative pressure of the fire will overturn the whole door curtain.
五、防火卷帘门传动装置强度问题
5、 Strength problem of transmission device of fire shutter door
防火卷帘轴的传动装置强度也是卷帘门的一个重要参数,目前这种强度不合格的产品很多,严重影响了防火卷帘门的使用。卷帘轴的结构主要指卷帘轴两端轴头塞人钢管内的深度及其结构。轴头塞人深度应为轴长的1/10左右,且要有两个法兰和足够的焊缝。有些厂商的产品却塞入很短,甚至用一个法兰,这种偷工减料的门使用一段时间后有断裂的危险。
The strength of the transmission device of the fireproof roller shutter shaft is also an important parameter of the roller shutter door. At present, there are many products with unqualified strength, which seriously affects the use of the fireproof roller shutter door. The structure of roller shutter shaft mainly refers to the depth and structure of the shaft heads at both ends of the roller shutter shaft plugged into the steel pipe. The plug depth of the shaft head should be about 1 / 10 of the shaft length, and there should be two flanges and enough welds. Some manufacturers' products are stuffed for a short time, and even use a flange. Such Jerry built doors are in danger of breaking after being used for a period of time.
六、防火卷帘门的手动控制的传动问题
6、 Transmission problem of manual control of fire shutter door
济南卷帘门厂提醒您,断电时手动快速关闭装置的传动问题火灾中。如发生电源中断,现场人员可采用手动速放装置.将门关闭。现在有一部分防火卷帘门没装这种装置。即使装了,也往往因质量问题,不起作用。
Jinan rolling shutter door factory reminds you that the transmission problem of the manual quick closing device in case of power failure is in the fire. In case of power interruption, field personnel can use manual quick release device to close the door. At present, some fireproof rolling shutter doors are not equipped with such devices. Even if installed, it often doesn't work because of quality problems.
以上就是问题解答的相关内容了,希望能够帮助到大家,如对这一问题还存在任何疑问,都欢迎关注我们网站http://www.jnhsjlm.com并咨询我们的工作人员,将竭诚为您服务。
The above is the relevant content of the question answer. I hope it can help you. If you still have any questions about this problem, you are welcome to follow our website http://www.jnhsjlm.com And consult our staff, will serve you wholeheartedly.

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