雨淋系统通常由三部分组成：火灾探测驱动控制系统；自动控制组动作阀系统；带开放式喷水器的自动喷水灭火系统。其中，火灾探测传输控制系统可以使用火灾探测器、传输管网或易熔合金锁来启动群动阀。火灾探测器、输电管网、易熔锁控制是自动控制手段。

The deluge system usually consists of three parts: fire detection drive control system; Automatic control group action valve system; Automatic sprinkler system with open sprinkler. Among them, the fire detection transmission control system can use the fire detector, transmission pipe network or fusible alloy lock to start the group operated valve. Fire detector, power transmission pipe network and fusible lock control are automatic control means.

当使用自动装置时，还应提供手动装置作为备用。可使用群动阀系统自动控制，雨淋阀或雨淋阀加湿报警阀。雨淋系统可分为空管雨淋系统和充水式雨淋系统两种。充水雨淋系统的灭火速度比空管雨淋系统快。

When automatic devices are used, manual devices shall also be provided as backup. Group valve system can be used for automatic control, deluge valve or deluge valve humidification alarm valve. The deluge system can be divided into air pipe deluge system and water filled deluge system. The fire extinguishing speed of water filled deluge system is faster than that of air pipe deluge system.

在实际应用中，可根据保护对象的要求选择合适的形式。在实际应用中，雨淋系统可能有许多不同的组件，但它们的工作原理大致相同。雨淋系统采用开放式喷水器，因此在整个保护区内同时进行喷水。

In practical application, the appropriate form can be selected according to the requirements of the protected object. In practical application, the deluge system may have many different components, but their working principles are roughly the same. The deluge system adopts an open sprinkler, so it sprays water at the same time in the whole protection area.

当发生火灾时，火灾探测系统感应到火情，控制雨淋阀打开，连接水源和雨淋管网，洒水器喷水灭火。

In case of fire, the fire detection system senses the fire, controls the deluge valve to open, connects the water source and deluge pipe network, and sprays water with sprinklers to extinguish the fire.

湿式报警阀通常阀瓣前后水压相同（水通过导管内的水压平衡孔保持阀瓣前后水压平衡）。由于阀瓣的重量与阀瓣前后水的总压力不同，阀瓣处于关闭状态（阀瓣上方的总压力大于阀下方的总压力核）。

Wet alarm valves usually have the same water pressure before and after the valve clack (water keeps the water pressure before and after the valve clack balanced through the water pressure balance hole in the conduit). Because the weight of the valve disc is different from the total pressure of the water before and after the valve disc, the valve disc is closed (the total pressure above the valve disc is greater than the total pressure core below the valve disc).

发生火灾时，封闭式洒水器会喷水。由于水压平衡孔来不及补水，报警阀上方的水压下降。这时阀瓣前面的水压大于阀瓣后面的水压，所以阀瓣打开，立管和管道打开。同时，水沿着报警阀的环形槽进入延时装置、压力开关和液压报警铃，发出火警信号，启动消防泵。

In case of fire, the enclosed sprinkler will spray water. As the water pressure balance hole is too late to make up water, the water pressure above the alarm valve drops. At this time, the water pressure in front of the valve disc is greater than that behind the valve disc, so the valve disc is opened, and the riser and pipeline are opened. At the same time, water enters the time delay device, pressure switch and hydraulic alarm bell along the annular groove of the alarm valve to send out a fire alarm signal and start the fire pump.

施工安装要点

Key points of construction and installation

川消湿式报警阀、延时装置和液压报警铃的安装位置周围应预留足够的维修空间，以确保在短的停机时间内进行维修。报警阀离地高度为1.2m。

Sufficient maintenance space shall be reserved around the installation position of Chuanxiao wet alarm valve, time delay device and hydraulic alarm bell to ensure maintenance within the shortest shutdown time. The alarm valve is 1.2m above the ground.

液压警铃是湿式报警阀的主要部件。水警铃应设在有人值守地点附近。与报警阀的连接管道直径应为20mm，总长不应超过20m，安装高度不应超过2m，并应有排水设施。

The hydraulic alarm bell is the main component of the wet alarm valve. The marine police bell shall be set near the attended place. The diameter of the connecting pipe with the alarm valve shall be 20mm, the total length shall not exceed 20m, the installation height shall not exceed 2m, and there shall be drainage facilities.

湿式报警阀、延时装置和液压报警铃之间的安装距离、安装高度和管道直径应保证其功能满足相关要求。

The installation distance, installation height and pipe diameter between wet alarm valve, time delay device and hydraulic alarm bell shall ensure that their functions meet relevant requirements.

湿式报警阀、缓速器和液压钟罩应能使用常用工具进行安装和现场维护。

The wet alarm valve, retarder and hydraulic bell housing shall be able to be installed and maintained on site with common tools.

湿式报警阀的控制区域根据口径等参数而有所不同。

The control area of wet alarm valve varies according to the diameter and other parameters.

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