卷帘门的设计人员应从不同建筑的性质、类型上设计有针对性的卷帘门，在设要严格按照消防技术规范要求，合理设置卷帘门，不得随意降低卷帘门的等级。

The designers of roller shutter doors should design targeted roller shutter doors based on the nature and type of different buildings. During the design, they should strictly comply with the requirements of the fire technical specifications, reasonably set roller shutter doors, and should not arbitrarily lower the grade of roller shutter doors.

1、在设计封闭楼梯间和未采用正压送风系统防烟楼梯间前室的济南卷帘门时，应考虑卷帘门距顶棚的距离尽量不小于500mm，这样一旦发生火灾事故，可以有效防止人员疏散时烟气进入楼梯间内，可保证楼梯间的防烟效果。

1. When designing Jinan roller shutter doors in the enclosed stairwell and in the front room of the stairwell without using a positive pressure air supply system for smoke prevention, it should be considered that the distance from the roller shutter door to the ceiling should not be less than 500mm, so that in the event of a fire accident, smoke can be effectively prevented from entering the stairwell during evacuation, and the smoke prevention effect of the stairwell can be guaranteed.

2、在设计有正压送风系统楼梯间及其前室的卷帘门时，应考虑到单扇开启面积与正压送风量相匹配。如果开启面积过大，在火灾发生时，楼梯间内正压送风系统运行的情况下由于风压的作用，可能会造成开启不够顺畅，不利于人员迅速疏散。

2. When designing the rolling shutter doors of the stairwell and its antechamber with a positive pressure air supply system, it should be considered that the single opening area matches the positive pressure air supply volume. If the opening area is too large, due to the effect of wind pressure during the operation of the positive pressure air supply system in the stairwell during a fire, the opening may not be smooth enough, which is not conducive to rapid evacuation of personnel.

3、在建筑内日常人流量较多、使用频率较大的部位，应优先考虑设计常开式卷帘门。由于常开式有靠电磁释放阀或磁力门吸、闭门器及自动控制系统来实现自闭的功能，在火灾发生时能够自行迅速关闭，起到防止火灾蔓延和烟气扩散的作用，这样设计既有利于在火灾发生时人员疏散，又能避免经常使用而出现的损坏。

3. Priority should be given to designing normally open roller shutter doors in areas with high daily pedestrian flow and high frequency of use within the building. Due to the self closing function of the normally open type, which relies on electromagnetic release valves or magnetic door suction, door closers, and automatic control systems, it can automatically and quickly close in the event of a fire, preventing fire spread and smoke diffusion. This design not only facilitates personnel evacuation in the event of a fire, but also avoids damage caused by frequent use.

如何挑选实力强的厂家呢？

How to select strong manufacturers?

知名度高的厂家，提供的产品质量越好。虽然不是的，但多数情况下能给大家一个很好的产品。

The better the quality of products provided by well-known manufacturers. Although not absolute, it can provide a good product for everyone in most cases.

真的好厂家，在市场上口碑不会差。如果许多人对卷帘门制造商的产品、服务、质量和细节感到满意，那么卷帘门制造商的实力在业界是非常受肯定的。

A really good manufacturer, with a good reputation in the market. If many people are satisfied with the products, services, quality, and details of the roller shutter manufacturer, then the strength of the roller shutter manufacturer is highly recognized in the industry.

厂商的真正实力，将有强大的团队和资金支持，能够为客户提供优良的服务，尤其是售后服务。

The true strength of the manufacturer will be a strong team and financial support, able to provide customers with excellent service, especially after-sales service.

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Therefore, I hope that the content explained above can effectively help you. For more matters, please come to our website http://xl0475.com Consult and understand!