必看！济南卷帘门防火控制避坑：一步降vs二步降，做错可能埋下消防隐患

　　Must see! Jinan rolling shutter door fire control pit avoidance: one-step descent vs two-step descent, making mistakes may bury fire hazards

　　防火卷帘作为济南建筑消防防护的关键设施，其控制器的规范运行的与下降模式选择，直接关系到火灾发生时的人员逃生与财产。据济南消防部门抽检数据显示，超55%的防火卷帘隐患源于控制模式设置错误或操作不规范，其中一步降、二步降混淆使用的情况占比达40%，不少企业因不懂两种模式的适用场景，违规设置导致消防验收不通过，甚埋下隐患。本文结合防火卷帘控制器的实操逻辑，详解一步降、二步降的核心区别与规范要求，助力济南企业、物业规避消防风险，确保防火卷帘发挥应有防护作用。

　　As a key facility for building fire protection in Jinan, the standardized operation and descent mode selection of the controller of the fireproof rolling shutter are directly related to the evacuation of personnel and property safety in the event of a fire. According to the sampling data from the Jinan Fire Department, over 55% of the hidden dangers of fireproof rolling shutters are caused by incorrect control mode settings or improper operation. Among them, 40% of the cases are caused by the mixed use of one-step and two-step lowering. Many enterprises, due to their lack of understanding of the applicable scenarios of the two modes, set them up in violation of regulations, resulting in failed fire safety inspections and even burying safety hazards. This article combines the practical logic of the fireproof rolling shutter controller to explain in detail the core differences and regulatory requirements between one-step reduction and two-step reduction, helping Jinan enterprises and properties avoid fire risks and ensure that fireproof rolling shutters play their due protective role.

　　非通道区域的防火卷帘，核心采用一步降控制模式，由控制器、手控盒及非编码型感烟、感温探测器协同工作。这类卷帘主要用于防火分区隔离，无需兼顾人员逃生，其控制逻辑简洁：卷帘配套的非编码型感烟、感温探测器，任意一个被触发后，控制器会立即接收信号，驱动卷帘直接下降楼板面，实现快速防火分隔。下降到位后，控制器模块会自动向消防主机发送反馈信号，同步记录运行状态；待火灾隐患后，通过手控盒操作复位，火警信号自动，再按下上升键，卷帘会运行上限位自动停止，模块反馈信号随之消失，恢复正常待命状态。

　　The fireproof rolling shutter in non safe passage areas adopts a one-step descent control mode, which is coordinated by a controller, a manual control box, and non coding smoke and temperature detectors. This type of rolling shutter is mainly used for fire partition isolation, without the need to consider personnel evacuation. Its control logic is simple and efficient: the non coding smoke and temperature detectors matched with the rolling shutter, when any one is triggered, the controller will immediately receive the signal and drive the rolling shutter to descend directly to the floor surface, achieving fast fire separation. After the descent is in place, the controller module will automatically send feedback signals to the fire control host and synchronously record the operating status; After the fire hazard is eliminated, reset it through the manual control box operation, and the fire alarm signal will be automatically eliminated. Then press the up button, and the roller shutter will run to the upper limit position and automatically stop. The module feedback signal will disappear, and the normal standby state will be restored.

　　而济南建筑出口处的防火卷帘，必须采用二步降控制模式，这也是消防规范的硬性要求，核心目的是兼顾防火分隔与人员逃生。与一步降不同，二步降需通过两次火警信号触发，实现分段下降：次火警触发（通常为感烟探测器动作），控制器驱动卷帘下降距楼板1.8米处停止，预留临时逃生通道，便于人员快速撤离；等待第二次火警信号（多为感温探测器动作）确认火势蔓延后，卷帘才会继续下降楼板面，完成防火分隔，限度保障人员逃生与财产。

　　The fireproof rolling shutter at the safety exit of buildings in Jinan must adopt a two-step lowering control mode, which is also a mandatory requirement of fire safety regulations. The core purpose is to balance fire separation and personnel evacuation. Unlike one-step descent, two-step descent requires triggering two fire alarm signals to achieve segmented descent: the first fire alarm is triggered (usually by the action of a smoke detector), and the controller drives the rolling shutter to descend to a stop 1.8 meters away from the floor, reserving a temporary escape route for quick evacuation of personnel; After waiting for the second fire alarm signal (usually triggered by temperature detectors) to confirm the spread of the fire, the rolling shutter will continue to descend to the floor level, completing comprehensive fire separation and maximizing the protection of personnel escape and property safety.

　　值得注意的是，出口处的防火卷帘，其前后均需配备非编码型感烟、感温探测器，确保火灾信号检测的性与准确性。这类探测器触发的信号会实时传输消防主机，若主机处于自动状态，会立即启动控制模块，根据预设模式触发卷帘下降，其信号传输分为有源与无源两种方式，可根据现场消防配置灵活选择，核心是确保信号传输稳定、触发响应及时。

　　It is worth noting that the fireproof rolling shutter at the safety exit must be equipped with non coding smoke and temperature detectors in both front and back to ensure the comprehensiveness and accuracy of fire signal detection. The signal triggered by this type of detector will be transmitted in real time to the fire control host. If the host is in automatic mode, the control module will be immediately activated to trigger the rolling shutter to descend according to the preset mode. The signal transmission is divided into active and passive modes, which can be flexibly selected according to the on-site fire protection configuration. The core is to ensure stable signal transmission and timely triggering response.

　　济南消防规范明确要求，防火卷帘控制器需具备过载缺相保护、相序自动检测及状态反馈功能，无论是一步降还是二步降模式，均需定期调试校准，避免出现动作卡顿、反馈失灵等问题。据统计，济南地区定期调试的防火卷帘，消防隐患发生率较未调试的降低68%，而未按规范设置下降模式的卷帘，在消防验收中通过率仅为32%，不仅影响建筑正常使用，还需承担整改成本与风险。

　　The Jinan fire safety regulations clearly require that the fireproof rolling shutter controller must have overload and phase loss protection, automatic phase sequence detection, and status feedback functions. Whether it is a one-step or two-step lowering mode, it needs to be regularly debugged and calibrated to avoid problems such as action lag and feedback failure. According to statistics, the fire hazard rate of regularly debugged fireproof rolling shutters in Jinan area has decreased by 68% compared to those that have not been debugged. However, rolling shutters that have not been set with a downward mode according to regulations have a pass rate of only 32% in fire inspection, which not only affects the normal use of buildings, but also requires bearing the cost of rectification and safety risks.

　　对济南企业、物业而言，区分防火卷帘一步降与二步降的适用场景，规范控制器操作，是落实消防责任的关键。非通道优先采用一步降，快速实现防火分隔；出口必须采用二步降，兼顾逃生与防火，二者不可混淆使用。同时，需定期检查控制器、手控盒及探测器的运行状态，确保火灾发生时能够精准响应、规范动作。

　　For enterprises and property management in Jinan, distinguishing the applicable scenarios of one-step and two-step lowering of fireproof rolling shutters and standardizing the operation of controllers are key to implementing fire safety responsibilities. Priority is given to using one-step descent for non secure channels to quickly achieve fire separation; The safety exit must adopt a two-step descent, taking into account both evacuation and fire prevention, and the two cannot be used interchangeably. At the same time, it is necessary to regularly check the operating status of controllers, manual control boxes, and detectors to ensure accurate response and standardized actions in the event of a fire.

　　综上，济南卷帘门的防火控制核心的是“场景适配、规范操作”，一步降与二步降的正确运用，直接决定防火卷帘的防护效果。忽视控制模式差异、违规操作，不仅会导致消防验收失败，更会埋下严重隐患。若济南企业、物业对防火卷帘控制器操作、下降模式设置有疑问，可咨询团队，精准规避消防坑点，确保建筑消防防护达标，守护人员与财产。

　　In summary, the core of fire control for Jinan rolling shutter doors is "scene adaptation and standardized operation". The correct use of one-step and two-step lowering directly determines the protective effect of the fireproof rolling shutter. Neglecting differences in control modes and violating regulations not only leads to failed fire safety inspections, but also poses serious safety hazards. If Jinan enterprises and property management have any questions about the operation and lowering mode setting of the fireproof rolling shutter controller, they can consult a professional team to accurately avoid fire pit points, ensure that building fire protection meets standards, and safeguard personnel and property safety.

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