防火卷帘门的技术原理

Fireproof rolling shutter door is a kind of fireproof and thermal insulation device suitable for large openings in buildings. This product plays a certain role in fire prevention in design and installation. Fireproof rolling shutter doors are widely used in the fire separation areas of industrial and civil buildings to prevent the spread of fire and protect people and property. They are indispensable fire prevention devices in modern buildings.

防火卷帘门是利用机械作用来完成防火分离功能，机械设备有一定的故障率。此外，用户没有妥善处理或按时维护。发生火灾时，可能会出现单件故障，其开口大，性不如防火门。因此，消防标准对其应用部位规定了明确而详细的限制：用于封闭楼层开口、消防电梯专用前室门开口、中庭走廊与其他区域的连接，难以用防火墙来区分火区，可以通过专用防火卷帘门或普通防火卷帘加水帘维护来区分。在规划工程时，应严格遵守这些规定，不得随意扩大使用范围，不得用防火卷帘“代替”防火墙或隔墙。

The fireproof rolling shutter door uses mechanical action to complete the fireproof separation function, and the mechanical equipment has a certain failure rate. In addition, the user did not properly handle or maintain on time. In case of fire, single piece failure may occur. Its opening is large and its performance is not as good as that of fire door. Therefore, the fire protection standard stipulates clear and detailed restrictions on its application parts: it is used to close the floor opening, the opening of the special front room door of the fire elevator, and the connection between the atrium corridor and other areas. It is difficult to distinguish the fire area with a firewall, which can be distinguished by the maintenance of special fire rolling shutter door or ordinary fire rolling shutter plus water curtain. When planning the project, these Regulations shall be strictly observed, the scope of use shall not be expanded at will, and the fire shutter shall not be used to "replace" the firewall or partition wall.

防火卷帘门为两级坠落控制方式，报警和动作信号分别送到消防控制室，专用防火卷帘要有应急控制方式。安装在防火快速卷帘门前的感烟探测器发出信号后，消防控制室操作台上的自动报警器将显示报警信号。

The fire rolling shutter door adopts two-level fall control mode, and the alarm and action signals are sent to the fire control room respectively. The special fire rolling shutter shall have emergency control mode. After the smoke detector installed in front of the fire fast rolling shutter door sends a signal, the automatic alarm on the console in the fire control room will display the alarm signal.

假设工作台上的自动报警灯亮，对应的百叶窗指示灯灭，可以看出百叶窗的电气控制存在一些不足。此时，操作表上的快门控制按钮应立即激活以下降到或底部。假设操作后卷帘门下降位置指示灯未亮，应派人到现场检查是否有缺陷。可见，消防控制室的卷帘门控制要有控制按钮下降到中位、下降位和上升位，并且要有闪烁的中位和上升位的指示灯。目视检查门轨、门扇有无变形、堵塞，手动按钮是否能被卡住。

Assuming that the automatic alarm light on the workbench is on and the corresponding shutter indicator light is off, it can be seen that there are some deficiencies in the electrical control of the shutter. At this time, the shutter control button on the operation table should be activated immediately, down to or bottom. If the indicator light of the falling position of the rolling shutter door is not on after operation, send someone to the site to check whether there are defects. It can be seen that the rolling shutter door control in the fire control room shall have control buttons to lower to the middle position, lower position and rising position, and flashing middle position and rising position indicators. Visually check whether the door rail and door leaf are deformed and blocked, and whether the manual button can be stuck.