川消末端试水装置的作用以及检查内容分享
来源：http://www.cx-fire.com/ 日期：2022-05-10
末端试水装置是由试验阀、试验管和排水管、压力表组成的。该装置安装在系统管网不利点喷头处，检验系统启动、报警及联动等功能的装置，下面来分享末端试水装置的作用以及检查内容。
The end water test device is composed of test valve, test pipe, drainage pipe and pressure gauge. The device is installed at the nozzle at the unfavorable point of the system pipe network to test the functions of system startup, alarm and linkage. Here are the functions and inspection contents of the end water test device.
川消末端试水装置的作用：模拟喷淋系统各个保护区不利点处的喷头工作时，水流指示器、报警阀与压力开关、水利警铃的联动、复位性能。检测不利点处喷头真实的工作压力是否到达到规定值。在规定时间内，不利点处的喷头能否达到规范所规定的流量值。便于以后对管道冲洗及换水维护等。
Function of Chuanxiao end water test device: simulate the linkage and reset performance of water flow indicator, alarm valve, pressure switch and water conservancy alarm bell when the sprinkler at the adverse points of each protection area of the sprinkler system works. Check whether the real working pressure of the nozzle at the unfavorable point reaches the specified value. Whether the nozzle at the unfavorable point can reach the flow value specified in the specification within the specified time. It is convenient for pipeline flushing and water change maintenance in the future.
末端试水装置的检查分为外观检查和功能检查。外观检查主要包括外观标识和外观质量检查。末端试水装置要有清晰的铭牌、操作指示标识和产品说明书。水流指示器上有水流方向的性标识；末端试水装置的试水阀上有明显的启闭状态标识。
The inspection of the end water test device is divided into appearance inspection and function inspection. Appearance inspection mainly includes appearance identification and appearance quality inspection. The end water test device shall be provided with clear nameplate, safe operation instruction mark and product manual. Permanent identification of water flow direction on the water flow indicator; The water test valve of the end water test device is marked with obvious opening and closing status.
功能检查主要是检查末端试水装置的密封性能，试验压力为工作压力的1.1倍，稳压5分钟，无泄漏即可。末端试水装置手动（电动）操作方式灵活，便于开启，信号反馈装置能够在末端试水装置开启后输出信号，试水阀关闭后，末端试水装置无渗漏。
The function inspection is mainly to check the sealing performance of the end water test device. The test pressure is 1.1 times of the working pressure. It can be stabilized for 5 minutes without leakage. The manual (electric) operation mode of the end water test device is flexible and easy to open. The signal feedback device can output the signal after the end water test device is opened. After the water test valve is closed, the end water test device has no leakage.
末端试水装置处排水设施的排水能力应进行测试，且在地面不应有积水。每个季度应对系统所有的末端试水阀和报警阀旁的放水实验阀进行一次放水试验，检查系统启动、报警功能以及出水情况是否正常。每月应利用末端试水装置对水流指示器进行试验。
The drainage capacity of the drainage facilities at the end water test device shall be tested, and there shall be no ponding on the ground. Every quarter, a water discharge test shall be conducted for all the end water test valves of the system and the water discharge test valve next to the alarm valve to check whether the system startup, alarm function and water outlet condition are normal. The water flow indicator shall be tested monthly using the end water test device.
测试末端试水装置的密封性能，试验压力为额定工作压力的1.1倍，保压时间为5min，末端试水装置试水阀关闭，测试结束时末端试水装置个组件无渗漏。末端试水装置手动（电动）操作方式灵活，便于开启，信号反馈装置能够在末端试水装置开启后输出信号，试水阀关闭后，末端试水装置无渗漏。
Test the sealing performance of the end water test device, the test pressure is 1.1 times of the rated working pressure, the pressure holding time is 5min, the water test valve of the end water test device is closed, and there is no leakage in each component of the end water test device at the end of the test. The manual (electric) operation mode of the end water test device is flexible and easy to open. The signal feedback device can output the signal after the end water test device is opened. After the water test valve is closed, the end water test device has no leakage.
试水阀、试水喷嘴应采用耐腐蚀性能不低于黄铜的金属材料制作。末端试水装置应具有防止误操作的措施，压力表安装口应设有开关。
The water test valve and nozzle shall be made of metal materials with corrosion resistance not lower than brass. The end water test device shall be provided with measures to prevent misoperation, and the installation port of the pressure gauge shall be equipped with a switch.
开启末端试水装置进行试验时，测试得到的压力和流量数据，只是在测试位置处的流量和压力数据，并没有经验公式能利用此数据科学推算出系统供水能力（压力、流量），更不能判断系统的不利点压力是否符合设计要求。末端试水装置的真正功能是检验系统启动、报警和利用系统启动后的特性参数组成联动控制装置等的功能是否正常。
When the end water test device is opened for test, the pressure and flow data obtained from the test are only the flow and pressure data at the test position. There is no empirical formula to use this data to scientifically calculate the water supply capacity (pressure and flow) of the system, and it can not judge whether the pressure at the unfavorable point of the system meets the design requirements. The real function of the end water test device is to check whether the functions of system startup, alarm and linkage control device composed of characteristic parameters after system startup are normal.
This is the function of the water test device at the end of Chuanxiao and the sharing of inspection content. If you are interested in fire protection, you should pay attention to the website of Chuanxiao www.cx-fire COM, to provide you with more updated content.
