雨淋报警阀的工作原理是通过水和系统的压力作用到主控制阀使阀门打开或关闭，达到灭火的功能。雨淋报警阀是在发生火灾时阀门才打开，平时管道内没有水，可以防止生锈或者冻裂。一旦发生情况可以快速进行供水，在消防管道系统中使用效果非常好。

　　The working principle of the rain alarm valve is to open or close the main control valve through water and system pressure, so as to achieve the function of extinguishing the fire. Rain alarm valve is only opened in case of fire, usually there is no water in the pipeline, can prevent rust or freeze crack. In case of emergency, water supply can be carried out quickly, which is very good for use in fire protection piping system.

　　雨淋报警阀由灭火系统保护区内就近的感烟、感温探测器组成与门，当二者均动作后，通控制电路开启雨淋报警阀，并返回动作信号。

　　The rain alarm valve is composed of the nearest smoke detector and temperature detector in the fire extinguishing system protection area. When both of them operate, the control circuit will open the rain alarm valve and return the action signal.

　　由喷水灭火系统保护的防火分区内任意火灾探测器报警，确认火灾后，由火灾自动报警控制器发出控制信号输人输出模块，开启雨淋报警阀，并返回动作信号，从报警可靠性考虑宜采用第二种控制方式。

　　Any fire detector in the fire protection zone protected by sprinkler system alarms, and after confirming the fire, the automatic fire alarm controller sends control signal to the input and output module, opens the rain alarm valve, and returns the action signal. Considering the reliability of alarm, the second control mode should be adopted.

　　湿式报警阀压力开关的接点和消防控制室手动按钮应直接延时起泵，在无消防控制室的工程中，应把湿式报警阀压力开关的接点线路直接引湿式喷水灭火系统喷淋泵的控制箱内。

　　The contact of the pressure switch of the wet alarm valve and the manual button of the fire control room should delay the pump directly. In the project without the fire control room, the contact line of the pressure switch of the wet alarm valve should be directly led to the control box of the spray pump of the wet sprinkler system.

　　实现直接延时起泵和显示信号的功能，在有消防控制室的工程中，消防控制室内应设手动联动控制台，将压力开关的接点线路引控制台，经转换后实现自动和手动直接控制喷淋泵，并显示信号。

　　In the project with fire control room, manual linkage console should be set in the fire control room to lead the contact line of the pressure switch to the console. After conversion, automatic and manual direct control of the spray pump is realized, and the signal is displayed.

　　川消雨淋报警阀和湿式报警阀的主要区别就是系统处于准工作状态时的情况，闭式的报警阀是常开的，喷头喷水后不需要再打开报警阀。

　　The main difference between the water sprinkler alarm valve and the wet alarm valve is the situation when the system is in the quasi-working state. The closed alarm valve is normally open, and the alarm valve does not need to be opened after the sprinkler sprays.

　　而雨淋报警阀是常闭的，需要与火灾自动报警系统联动，火警信号确认后，打开雨淋报警阀，然后用稳压装置提供压力，然后将电磁阀打开后，压力开关动作，启动消防水泵，喷头喷水灭火。

　　The drench alarm valve is normally closed, and it needs to be linked with the automatic fire alarm system. After the fire alarm signal is confirmed, the drench alarm valve is opened, and then the pressure regulator is used to provide pressure. After the solenoid valve is opened, the pressure switch acts to start the fire pump and spray water to extinguish the fire.

　　更多相关内容，您可以来川消网站www.cx-fire.com进行咨询，这里有的消防设备以及消防知识供大家参考！

　　For more relevant content, you can come to the website www.cx-fire.com for consultation, here is a comprehensive fire equipment and fire knowledge for your reference!