川消水流指示器设置和安装要求
来源：http://www.cx-fire.com/ 日期：2022-08-03
水流指示器的叶片与水流方向垂直，喷头开启后引起管道中的水流动，当桨片或膜片感知水流的作用力时带动微动开关动作，接通延时线路，延时器开始计时。到达设定的延时时间后，叶片仍向水流方向偏转无法回位，电触点闭合，输出信号。当水流停止时，桨片和动作杆复位，触点断开，信号。下面来讲讲水流指示器设置和安装要求。
The blade of the water flow indicator is perpendicular to the direction of water flow. After the nozzle is opened, the water in the pipe flows. When the paddle or diaphragm senses the force of water flow, it drives the microswitch to act, connects the delay line, and the time delayer starts timing. After reaching the set delay time, the blade still deflects in the direction of water flow and cannot return to its position. The electric contact is closed and the signal is output. When the water flow stops, the paddle and actuating rod are reset, the contact is disconnected, and the signal is eliminated. Now let's talk about the setting and installation requirements of water flow indicator.
1.水流指示器的功能，是及时报告发生火灾的部位。
1. The function of the water flow indicator is to report the fire site in time.
2.信号阀安装在水流指示器前的管道上，与水流指示器间的距离不宜小于300mm。
2. The signal valve shall be installed on the pipeline in front of the water flow indicator, and the distance between the signal valve and the water flow indicator shall not be less than 300mm.
3.水流指示器的大工作压力为1.2MPa。
3. The large working pressure of the water flow indicator is 1.2MPa.
4.具有延迟功能的水流指示器延迟时间为2~90s。
4. The delay time of the water flow indicator with delay function is 2~90s.
5.水流指示器一般适用于湿式、干式、预作用、循环启闭式、自动喷水—泡沫联用系统中。
5. The water flow indicator is generally applicable to wet, dry, pre acting, circulating open close, automatic water spray foam combined system.
6.可不设置情况：
6. Optional:
当一个湿式报警阀组仅控制一个防火分区或一个层面的喷头时。由于报警阀组的水力警铃和压力开关已能发挥报告火灾部位的作用，故此种情况允许不设水流指示器。
When a wet alarm valve group only controls the sprinkler of one fire compartment or one layer. Since the hydraulic alarm bell and pressure switch of the alarm valve group can play the role of reporting the fire position, it is allowed not to set a water flow indicator in this case.
仅用于保护钢屋架、桁架而独立设置的报警阀，水流指示器所起到的报警作用有限，可考虑不安装水流指示器。
The independent alarm valve is only used to protect the steel roof truss and truss, and the water flow indicator has limited alarm effect, so it can be considered not to install the water flow indicator.
That's all for the setting and installation requirements of Chuanxiao water flow indicator. If you don't want to be prone to faults, you should be prepared in advance. Whether it's usage precautions or fault problems, more matters can be found on the website http://www.cx-fire.com Consult.
