川消預作用報警閥的滅火啟動過程
來源：http://m.xintli.net/ 日期：2023-02-10
當保護區一旦發生火災，預作用裝置上的電磁閥接受到啟動信號，電磁閥打開，水進入管網，短時間內完成充水過程，同時水力警鈴報警。下面來看看
川消預作用報警閥的滅火啟動過程相關事項吧。
In case of fire in the protection zone, the solenoid valve on the pre-action device receives the start signal, the solenoid valve opens, and the water enters the pipe network. The water filling process is completed in a short time, and the hydraulic alarm bell alarms at the same time. Let's take a look at the fire extinguishing startup process of Sichuan Fire Pre-action Alarm Valve.
一、系統工作
1、 System operation
當防護區內火災時，一方面閉式噴頭被熔爆管網變成開式管網，另一方面火災探測器將收集到火災信號傳回消防控制設備，從面打開雨淋閥側腔導管上的電磁閥使側腔泄壓導致雨淋閥被打開，壓力水經過預作用裝置后進入滅火管網噴水滅火，水力警鈴響鈴報警，壓力開關給出啟泵信號，預作用裝置處于工作狀態。
When there is a fire in the protection zone, on the one hand, the closed sprinkler is turned into an open pipe network by melting and exploding the pipe network, on the other hand, the fire detector will send the fire signal collected back to the fire control equipment, open the solenoid valve on the side chamber duct of the deluge valve from the surface to release the pressure of the side chamber, and the deluge valve will be opened, and the pressure water will enter the fire extinguishing pipe network after passing through the pre-action device to spray water, the hydraulic alarm will ring, and the pressure switch will give the pump start signal, The pre-action device is in working condition.
二、滅火結束
2、 End of fire fighting
當水流停止時，濕式閥自動關閉，雨淋閥通過手動復位后又回到初始狀態。預作用報警裝置具備如下功能；防止誤噴、火災發生時開啟迅速、水力警鈴機械報警、壓力開關給出啟泵信號。
When the water flow stops, the wet valve automatically closes, and the deluge valve returns to the initial state after manual reset. The pre-action alarm device has the following functions:; Prevent spurious spray, start quickly in case of fire, hydraulic alarm bell mechanical alarm, and pressure switch giving pump start signal.
預作用閥是由雨淋閥和濕式報警閥上下串接而成，雨淋閥位于供水側，濕式報警閥位于系統側而成為預作用閥組。系統由預作用閥水力警鈴、壓力開關、空壓機、空氣維護裝置、信號碟閥等組成，安裝閉式灑水噴頭，并以常用的探測系統作為報警和啟動的裝置。其動作原理：
The pre-action valve is composed of a deluge valve and a wet alarm valve which are connected up and down in series. The deluge valve is located at the water supply side, and the wet alarm valve is located at the system side and becomes the pre-action valve group. The system is composed of pre-action valve hydraulic alarm bell, pressure switch, air compressor, air maintenance device, signal butterfly valve, etc., closed sprinkler is installed, and common detection system is used as alarm and start device. Its action principle:
一旦發生火災，安裝在保護區感溫感煙火災探測器發出火災報等信號。火災報警控制器或消防控制中心，接到報警信號后發出指令打開雨淋閥上電磁閥，使雨淋閥開啟，壓力水流進系統側管網，變成濕式噴水系統，同時水力警鈴發出報苦，壓力開關動作反饋給控制中心顯示管路已充水，并啟動消防泵。
In case of fire, the temperature and smoke fire detector installed in the protection area will send fire alarm and other signals. After receiving the alarm signal, the fire alarm controller or fire control center will send a command to open the solenoid valve on the deluge valve, so that the deluge valve can be opened, and the pressure water flows into the pipe network at the system side to become a wet water spraying system. At the same time, the hydraulic alarm bell will send out a distress, and the pressure switch action will feed back to the control center to show that the pipeline has been filled with water, and the fire pump will be started.
此時管道上安裝閉式灑水噴頭尚未釋放，不會噴水。人尚可主動地經主管人員采取適當行動將火撲滅，避免噴頭動作水漬造成的損失。如果火災控制不住繼續發展，致使閉式噴頭玻璃球動作噴水，水泵自動啟動。
At this time, the closed sprinkler installed on the pipeline has not been released and will not spray water. The person in charge can take appropriate actions to put out the fire on his own initiative to avoid the loss caused by water stains caused by the nozzle action. If the fire cannot be controlled and continues to develop, the glass ball of the closed sprinkler will act to spray water, and the water pump will start automatically.
這里，小編要提醒大家，預作用報警閥組如果被使用到了戶外，應該具有寶珠裝置，防止被風砂、雨露以及陽光侵蝕；不應該被使用到有易燃、易爆氣體以及粉塵的環境；預作用報警閥組不適合使用在濕熱帶和干熱帶的環境中；等等，更多相關注意事項就來我們網站
http://m.xintli.net咨詢！
Here, I want to remind you that if the pre-action alarm valve group is used outdoors, it should have a bead device to prevent it from being eroded by wind, sand, rain and sunshine; It should not be used in the environment with flammable, explosive gas and dust; The pre-action alarm valve group is not suitable for use in humid and dry tropical environments; Wait, more relevant precautions will come to our website http://m.xintli.net consulting service
