关于防火卷帘门认识的六大问题

随着社会的发展，防火卷帘已经成为现代化建筑不可缺少的设备之一，但防火卷帘门还是存在着一些问题，下面济南防火卷帘门安装维修人员就针对这些问题来深入了解一下。

With the development of society, fire rolling shutter has become one of the indispensable equipment for modern buildings, but there are still some problems with fire rolling shutter doors. Now, the installation and maintenance personnel of fire rolling shutter doors in Jinan will have a deep understanding of these problems.

1、厚度问题：

1. Thickness problem:

门帘的厚度是用于门帘板的钢板的厚度。目前，偷工减料的现象很普遍。一些制造商在送检时使用较厚钢板的窗帘板。获得证书后，他们使用较薄的一种进行生产。由于卷帘的厚度不易测量，卷帘的使用寿命不易满足现场卷帘的要求，所以卷帘不易现场安装。

The thickness of the curtain is the thickness of the steel plate used for the curtain panel. At present, the phenomenon of cutting corners is very common. Some manufacturers use thicker steel curtain panels when submitting for inspection. After obtaining the certificate, they used the thinner one for production. Because the thickness of the roller shutter is not easy to measure, and the service life of the roller shutter is not easy to meet the requirements of the on-site roller shutter, it is not easy to install the roller shutter on site.

2、门楣结构问题：

2. Lintel structure:

过梁结构：根据国家标准，防火卷帘门应设置过梁结构。目前，无过梁防火卷帘门被广泛使用，在火灾发生时无法防止火灾的强烈冲击向上，使烟气通过过梁向外扩散。过梁的紧密性是防火和防烟的关键。如果安装了无过梁结构的防火卷帘门，则不能起到防火屏障的作用。

Lintel structure: According to the national standard, the fireproof rolling shutter door shall be provided with a lintel structure. At present, lintel free fireproof rolling shutter doors are widely used, which can not prevent the strong impact of fire from rising when a fire occurs, making smoke spread outward through the lintel. The tightness of lintel is the key to fire and smoke prevention. If the fire rolling shutter door without lintel structure is installed, it cannot play the role of fire barrier.

3、导轨问题

3. Guide rail problem

导轨存在的问题是导轨深度不够，结构和材料不当。这些是许多大型卷帘门安装中常见的问题。大型卷帘门的导轨应具有能够承受高强度的主要部件，然而，许多工厂使用简单的轻型导轨来代替它。发生火灾时，门帘很容易从导轨上脱落，不能起到防火作用。

The problems of the guide rail are that the depth of the guide rail is not enough, and the structure and materials are improper. These are common problems in the installation of many large rolling shutter doors. The guide rail of large roller shutter door shall have the main parts that can withstand high strength. However, many factories use simple light guide rail to replace it. In case of fire, the door curtain is easy to fall off from the guide rail and cannot play a role in fire prevention.

4、底帘问题

4. Bottom curtain problem

防火卷帘门底梁问题有的产品没有底梁，虽然有些产品有底梁，但使用的材料很薄。门帘底梁是保持门帘强度的重要构件。如果门帘下没有底梁，则意味着门帘下部的实心框架较少，火灾的负压将翻转整个门帘。

Some products have no sill, although some products have sill, the materials used are very thin. The bottom beam of the curtain is an important component to maintain the strength of the curtain. If there is no sill under the curtain, it means that there are fewer solid frames under the curtain, and the negative pressure of the fire will overturn the entire curtain.

5、传动装置强度问题

5. Drive strength problem

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，有很多产品强度不合格，严重影响防火卷帘门的使用。卷帘轴的结构主要是指卷帘轴两端的轴头插入钢管的深度和结构。轴头堵头深度约为轴长的1/10，应有两个法兰和足够的焊缝。一些制造商的产品填充很短，甚至带有法兰。这扇劣质的门使用一段时间后有被打破的危险。

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 whose strength is unqualified, 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 inserted into the steel pipe. The depth of the shaft head plug is about 1/10 of the shaft length, and there should be two flanges and enough welds. Some manufacturers have products with short filling and even flanges. This inferior door is in danger of being broken after being used for some time.

6、的手动控制的传动问题

6. Transmission problem of manual control of

断电时手动快速关闭装置的传动问题火灾中。如果停电，现场人员可以使用手动快速释放装置关门。目前，一些防火卷帘门没有配备这种装置。即使安装了，由于质量问题，它通常也无法工作。

The transmission of the manual quick closing device in case of power failure is in fire. In case of power failure, on-site personnel can use manual quick release device to close the door. At present, some fire rolling doors are not equipped with such devices. Even if it is installed, it usually does not work due to quality problems.

以上就是不容忽视的六个问题，在卷帘门的发展过程中，只有不断解决其存在的问题，才能更有效地保护我们。更多相关事项就来我们网站http://www.jnyuqilin.com进行咨询！

The above are six problems that cannot be ignored. In the development process of rolling shutter doors, only by constantly solving their existing problems can we protect us more effectively. Come to our website for more information http://www.jnyuqilin.com Consult!