預(yù)作用報警閥是將火災(zāi)探測報警技術(shù)和自動噴水系統(tǒng)結(jié)合起來，對保護對象起雙重保護作用的自動噴水滅火裝置。具有干式系統(tǒng)的特點。預(yù)作用報警閥通常安裝于那些既需要用水滅火，但又不允許發(fā)生非火災(zāi)原因而噴水的地方。適用于貯藏真本的圖書館、檔案室、博物館、貴重物品貯藏室、電腦機房等。下面川消小編為您講解更多：

The pre action alarm valve is an automatic sprinkler system that combines fire detection and alarm technology with an automatic sprinkler system to provide dual protection for the protected object. It has the characteristics of a dry system. Pre action alarm valves are usually installed in places that require water to extinguish fires, but do not allow water to be sprayed for non fire reasons. Suitable for storing rare and authentic books in libraries, archives, museums, storage rooms for valuable items, computer rooms, etc. Below, the editor of Chuanxiao will explain more to you:

預(yù)作用系統(tǒng)的預(yù)作用報警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(cè)，濕式報警閥位于系統(tǒng)側(cè)而成為預(yù)作用閥組。系統(tǒng)由預(yù)作用閥水力警鈴、壓力開關(guān)、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(tǒng)作為報警和啟動的裝置。

The pre action alarm valve of the pre action system is composed of a deluge valve and a wet alarm valve connected in series. The deluge valve is located on the water supply side, and the wet alarm valve is located on the system side, forming the pre action valve group. The system consists of a pre action valve hydraulic alarm bell, pressure switch, air compressor, air maintenance device, signal disc valve, etc., equipped with a closed sprinkler head, and commonly used detection systems as alarm and start devices.

其動作原理：一旦發(fā)生火災(zāi)，安裝在保護區(qū)感溫感煙火災(zāi)探測器發(fā)出火災(zāi)報等信號?；馂?zāi)報警控制器或消防控制中心，接到報警信號后發(fā)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(tǒng)側(cè)管網(wǎng)，變成濕式噴水系統(tǒng)，同時水力警鈴發(fā)出報苦，壓力開關(guān)動作反饋給控制中心顯示管路已充水，并啟動消防泵。

Its operating principle: In the event of a fire, a temperature and smoke sensing fire detector installed in the protected area will emit a fire alarm and other signals. After receiving the alarm signal, the fire alarm controller or fire control center sends a command to open the electromagnetic valve on the deluge valve, causing the deluge valve to open. The pressure water flows into the system side pipe network, becoming a wet water spraying system. At the same time, the hydraulic alarm bell emits a distress signal, and the pressure switch action feedback to the control center shows that the pipeline has been filled with water, and the fire pump is 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(jīng)主管人員采取適當(dāng)行動將火撲滅，避免噴頭動作水漬造成的損失。如果火災(zāi)控制不住繼續(xù)發(fā)展，致使閉式噴頭玻璃球動作噴水，水泵自動啟動。更多相關(guān)產(chǎn)品信息了解就來我們網(wǎng)站http://www.xintli.net咨詢！

At this point, the closed sprinkler head installed on the pipeline has not yet been released and will not spray water. People can actively take appropriate actions by the supervisory personnel to extinguish the fire and avoid losses caused by water stains caused by nozzle action. If the fire cannot be controlled and continues to develop, causing the closed nozzle glass ball to act and spray water, the water pump will automatically start. For more information on related products, come to our website http://www.xintli.net consulting service