1.安装要求：

1. Installation requirements:

1)系统主供水信号蝶阀、雨淋报警阀、湿式报警阀等集中垂直安装在被保护区附近，且低环境温度不低于4摄氏度的室内，以免低温使隔膜腔内的存水冰冻而导致系统失灵。

1) The main water supply signal butterfly valve, deluge alarm valve, wet alarm valve, etc. of the system are centrally and vertically installed in the room near the protected area and the low ambient temperature is not lower than 4 ° C, so as to avoid the system failure caused by the freezing of the water stored in the diaphragm cavity.

2)在隔膜雨淋报警阀组的水源侧管道法兰和隔膜雨淋报警阀系统侧出水口处分别放人密封垫，拧紧法兰螺栓，再与系统管网连接。在湿式报警阀的平直管段上开孔接管，与由低气压开关、空气压缩机、电接点压力表等空气维持装置相连接。

2) Place gaskets on the water source side pipe flange of the diaphragm deluge alarm valve group and the water outlet of the diaphragm deluge alarm valve system side, tighten the flange bolts, and then connect with the system pipe network. Open a hole on the straight pipe section of the wet alarm valve and connect it with the air maintenance device such as low pressure switch, air compressor and electric contact pressure gauge.

3)系统放水阀、电磁阀、手动快开阀、、补水漏斗等部位设置排水设施，排水设施能够将系统出水排人排水管道。

3) Drainage facilities shall be set at the drain valve, solenoid valve, manual quick opening valve, water replenishing funnel and other parts of the system, which can discharge the system water into the drainage pipeline.

4)将雨淋报警阀上的压力开关、电磁阀、信号蝶阀引出线以及空气维持装亶上的低气压开关、电接点压力表引出线分别与消防控制中心控制线路相连接。

4) Connect the outgoing lines of pressure switch, solenoid valve and signal butterfly valve on the deluge alarm valve, low pressure switch and electric contact pressure gauge on the air maintenance device with the control line of the fire control center.

5)按照湿式自动喷水灭火系统的要求进行安装。

5) Install according to the requirements of wet automatic sprinkler system.

6）预作用装置安装完毕后，将雨淋报警阀组的防复位手轮转防复位锁止位置，手轮上红点对准标牌上的锁止位置，使系统处于伺应状态。

6) After the pre action device is installed, turn the anti reset handwheel of the deluge alarm valve group to the anti reset locking position, and align the red dot on the handwheel with the locking position on the label, so that the system is in the standby state.

2.操作原理：

2. Operating principle:

川消预作用系统预作用阀是由雨淋阀和湿式报警阀上下串接而成，雨淋阀位于供水侧，湿式报警阀位于系统侧而成为预作用阀组。

The pre action valve of Chuanxiao pre action system is composed of a deluge valve and a wet alarm valve connected in series. The deluge valve is located at the water supply side and the wet alarm valve is located at the system side to form a pre action valve group.

系统由预作用阀、压力开关、空压机、空气维护装置、信号碟阀等组成，安装闭式洒水喷头，并以常用的探测系统作为报警和启动的装置。其动作原理：一旦发生火灾，安装在保护区感温感烟火灾探测器发出火灾报等信号。火灾报警控制器或消防控制中心，接到报警。

The system is composed of pre action valve, pressure switch, air compressor, air maintenance device, signal butterfly valve, etc. the closed sprinkler is installed, and the common detection system is used as the alarm and startup device. Its action principle: in case of fire, the temperature and smoke fire detector installed in the protection area will send out fire alarm and other signals. The fire alarm controller or fire control center receives the alarm.

信号后发出指令打开雨淋阀上电磁阀，使雨淋阀开启，压力水流进系统侧管网，变成湿式喷水系统，同时发出报苦，压力开关动作反馈给控制中心显示管路已充水，并启动消防泵。此时管道上安装闭式洒水喷头尚未释放，不会喷水。

After the signal is sent, the command is given to open the solenoid valve on the deluge valve to open the deluge valve. The pressure water flows into the pipe network at the system side and becomes a wet water spray system. Meanwhile, the alarm is sent. The action of the pressure switch is fed back to the control center to show that the pipeline has been filled with water and start the fire pump. At this time, the closed sprinkler installed on the pipeline has not been released and will not spray water.

人尚可主动地经主管人员采取适当行动将火扑灭，避免喷头动作水渍造成的损失。如果火灾控制不住继续发展，致使闭式喷头玻璃球动作喷水，水泵自动启动。火灾扑灭后，应将电磁阀关闭,使雨淋阀关闭,并排除管中的水使系统充气，恢复准工作状态。

People can take the initiative to put out the fire through appropriate actions taken by the competent personnel to avoid the loss caused by water stains caused by nozzle action. If the fire cannot be controlled and continues to develop, the glass ball of the closed sprinkler acts to spray water, and the water pump starts automatically. After the fire is extinguished, the solenoid valve shall be closed to close the deluge valve, and the water in the pipe shall be drained to inflate the system and restore the quasi working state.

问题的相关讲解内容便是这样了，您的需求正好是相关消防设备购买或者使用安装注意事项了解的话，您可随时来我们网站http://www.cx-fire.com咨询。

This is the relevant explanation content of the question. Your needs are just related to the purchase or use of fire-fighting equipment. If you know, you can come to our website at any time http://www.cx-fire.com consulting service