湿式报警阀

Wet alarm valve

湿式报警阀是湿式自动喷水灭火系统的主要部件，安装在总供水干管上，连接供水设备和配水管网，是一种只允许水流单方向流入配水管网，并在规定流量下报警的止回型阀门，在系统动作前，它将管网与水流隔开，避免用水和可能的污染；当系统开启时，报警阀打开，接通水源和配水管；在报警阀开启的同时，部分水流通过阀座上的环形槽，经信号管道送水力警铃，发出音响报警信号。

The wet alarm valve is the main component of the wet automatic sprinkler system. It is installed on the main water supply pipe to connect the water supply equipment and the water distribution pipe network. It is a check valve that only allows the water flow to flow into the water distribution pipe network in one direction and alarms at the specified flow. Before the system acts, it separates the pipe network from the water flow to avoid water use and possible pollution; When the system is opened, the alarm valve is opened to connect the water source and distribution pipe; When the alarm valve is opened, part of the water flows through the annular groove on the valve seat and is sent to the hydraulic alarm bell through the signal pipeline to send out an audible alarm signal.

湿式报警阀平时阀芯前后水压相等（水通过导向管中的水压平衡小孔，保持阀板前后水压平衡）。由于阀芯的自重和阀芯前后所受水的总压力不同，阀芯处于关闭状态（阀芯上面的总压力大于阀芯下面的总压力）。发生火灾时，闭式喷头喷水，因为水压平衡小孔来不及补水，报警阀上面水压下降，此时阀下水压大于阀上水压，于是阀板开启，向立管及管网供水，同时发出火警信号并启动消防泵。

At ordinary times, the water pressure in front of and behind the valve core of the wet alarm valve is equal (the water passes through the water pressure balance hole in the guide pipe to maintain the water pressure balance in front of and behind the valve plate). Due to the difference between the self weight of the valve element and the total pressure of the water before and after the valve element, the valve element is closed (the total pressure above the valve element is greater than the total pressure below the valve element). In case of fire, the closed sprinkler sprays water. Because 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 below the valve is greater than the water pressure above the valve, so the valve plate is opened to supply water to the riser and pipe network. At the same time, the fire alarm signal is sent and the fire pump is started.

干式报警阀

Dry alarm valve

川消干式报警阀主要用在干式自动喷水灭火系统和干湿式自动喷水灭火系统中。其作用是用来隔开喷水管网中的空气和供水管道中的压力水，使喷水管网始终保持干管状态，当喷头开启时，管网空气压力下降，干式阀阀瓣开启，水通过报警阀进入喷水管网，同时部分水流通过报警阀的环形槽进入信号设施进行报警。

Chuanxiao dry alarm valve is mainly used in dry automatic sprinkler system and dry wet automatic sprinkler system. Its function is to separate the air in the water spray pipe network and the pressure water in the water supply pipeline, so that the water spray pipe network always maintains the main pipe state. When the nozzle is turned on, the air pressure in the pipe network drops, the dry valve disc opens, the water enters the water spray pipe network through the alarm valve, and part of the water flows through the annular groove of the alarm valve and enters the signal facilities for alarm.

干式报警阀由阀体、差动双盘阀板、充气塞、信号管网、控制阀等组成。

The dry alarm valve is composed of valve body, differential double disc valve plate, inflation plug, signal pipe network, control valve, etc.

1-阀体；2-差动双盘阀板；3-充气塞；4-阀前压力表；5-阀后压力表；6-角阀；7-止回阀；8-信号管；9、10、11-截止阀；12-小孔阀；13-总闸阀

1- valve body; 2-differential double disc valve plate; 3-inflation plug; 4-pressure gauge in front of valve; 5- pressure gauge behind valve; 6-angle valve; 7-check valve; 8-signal tube; 9. 10, 11 stop valve; 12- orifice valve; 13- main gate valve

雨淋报警阀

Deluge alarm valve

雨淋阀用于雨淋喷水灭火系统、预作用喷水灭火系统、水幕系统和水喷雾灭火系统。这种阀的进口侧与水源相连，出口侧与系统管路和喷头相连。一般为空管，仅在预作用系统中充气。雨淋阀的开启由各种火灾探测装置控制。雨淋阀主要有杠杆型、隔膜型、活塞型和感温型等几种。

Deluge valve is used for deluge sprinkler system, pre action sprinkler system, water curtain system and water spray fire extinguishing system. The inlet side of the valve is connected with the water source, and the outlet side is connected with the system pipeline and sprinkler. Generally, it is an empty pipe, which is only inflated in the pre action system. The opening of deluge valve is controlled by various fire detection devices. Deluge valves are mainly lever type, diaphragm type, piston type and temperature sensing type.

湿式报警阀组由湿式报警阀、水力警铃、压力开关、延时器、控制和检修阀、检验装置组成。

The wet alarm valve group is composed of wet alarm valve, hydraulic alarm bell, pressure switch, time delayer, control and maintenance valve and inspection device.

干式报警阀组由千式报警阀、水力警铃、压力开关、加速器、控制和检修阀、检验装置、气压维护装置组成。

The dry-type alarm valve group is composed of thousand type alarm valve, hydraulic alarm bell, pressure switch, accelerator, control and maintenance valve, inspection device and air pressure maintenance device.

雨淋报警阀组由雨淋阀、水力警铃、压力开关、加速器、控制和检修阀、启动装置、检验装置组成。

The deluge alarm valve group is composed of deluge valve, hydraulic alarm bell, pressure switch, accelerator, control and maintenance valve, starting device and inspection device.

预作用报警阀组由湿式报警阀、雨淋阀、水力警铃、压力开关、控制和检修阀、启动装置、检验装置、气压维护装置组成。

The pre action alarm valve group is composed of wet alarm valve, deluge valve, hydraulic alarm bell, pressure switch, control and maintenance valve, starting device, inspection device and air pressure maintenance device.

干湿两用报警阀组由湿式阀、干式阀、水力警铃、压力开关、控制和检修阀、检验装置组成（千湿两用系统已不常用）。

The dry and wet alarm valve group is composed of wet valve, dry valve, hydraulic alarm bell, pressure switch, control and maintenance valve and inspection device (the thousand wet dual-purpose system is not commonly used).

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