干式報(bào)警閥的設(shè)置要求包含八個(gè)內(nèi)容
來源：http://www.xintli.net/ 日期：2022-11-04
干式報(bào)警閥則由閥前水壓和閥后管中的有壓氣體的壓強(qiáng)引起。濕式報(bào)警閥有延時(shí)器，干式報(bào)警閥沒有延時(shí)器。那么您知道干式報(bào)警閥的設(shè)置要求是怎樣的嗎？下面
川消小編為您講解。
The dry alarm valve is caused by the water pressure in front of the valve and the pressure of the pressurized gas in the pipe behind the valve. The wet alarm valve has a time delay, while the dry alarm valve has no time delay. Do you know the setting requirements of dry alarm valve? Now let's talk about it.
1、在準(zhǔn)工作狀態(tài)（警戒狀態(tài)）時(shí)，報(bào)警閥以后的配水管道（系統(tǒng)側(cè)管網(wǎng)）充有一定壓力的氣體，當(dāng)出現(xiàn)少量的泄漏時(shí)，氣壓維持裝置通過節(jié)流孔補(bǔ)壓，維持管網(wǎng)壓力。
1. In the quasi working state (alert state), the water distribution pipe (system side pipe network) behind the alarm valve is filled with gas of a certain pressure. In case of a small amount of leakage, the air pressure maintaining device will supplement the pressure through the throttle to maintain the pipe network pressure.
2、系統(tǒng)側(cè)管網(wǎng)的氣壓值，需要根據(jù)干式報(bào)警閥入口前的水源壓力，結(jié)合干式報(bào)警閥的工作性能確定（不同廠家的干式報(bào)警閥組，工作差動(dòng)比有所區(qū)別）
2. The air pressure value of the pipe network at the system side shall be determined according to the water source pressure in front of the inlet of the dry alarm valve and the working performance of the dry alarm valve (the working differential ratio of dry alarm valve groups from different manufacturers is different)
3、報(bào)警閥的閥體被閥瓣分成上、下兩腔，上腔（系統(tǒng)側(cè)）連接充有壓縮氣體的系統(tǒng)側(cè)管網(wǎng)，下腔（供水側(cè)）連接水源。
3. The valve body of the alarm valve is divided into upper and lower chambers by the valve clack. The upper chamber (system side) is connected to the system side pipe network filled with compressed gas, and the lower chamber (water supply side) is connected to the water source.
4、報(bào)警閥的閥瓣扣在氣密封座和水密封座上，其中氣密封座的直徑大于水密封座的直徑，兩個(gè)密封座被中間室隔離，中間室連通報(bào)警水道，通過滴水閥與大氣相通。
4. The valve clack of the alarm valve is buckled on the gas seal seat and water seal seat. The diameter of the gas seal seat is larger than the diameter of the water seal seat. The two seal seats are isolated by the middle chamber, which is connected with the alarm channel and the atmosphere through the drip valve.
5、氣密封座的面積（閥瓣上面面積）大于水密封座的面積（閥瓣下面接觸水的面積），系統(tǒng)側(cè)只需要較小的氣體壓力就能平衡供水側(cè)較高的水壓。比如：工作差動(dòng)比為5：1的干式報(bào)警閥，表示系統(tǒng)側(cè)只需要大于等于0.1MPa的氣體壓力就可以使供水側(cè)水壓為0.5MPa的閥瓣保持封閉狀態(tài)
5. The area of the gas seal seat (the area above the valve clack) is larger than the area of the water seal seat (the area below the valve clack that contacts the water). Only a small gas pressure is required on the system side to balance the high water pressure on the water supply side. For example, the dry alarm valve with a working differential ratio of 5:1 means that the valve clack with a water pressure of 0.5MPa at the water supply side can be kept closed only if the gas pressure at the system side is greater than or equal to 0.1MPa
6、為了干式報(bào)警閥的耐用程度（防止動(dòng)作部件粘結(jié)）和保證更好的氣密性，通常需要在系統(tǒng)側(cè)底座加注底水
6. In order to ensure the durability of the dry alarm valve (to prevent sticking of moving parts) and better air tightness, it is usually necessary to add bottom water at the base of the system side
7、為防止閥瓣組件在動(dòng)作以后重新回到其關(guān)閉位置上，干式報(bào)警閥應(yīng)設(shè)置有防復(fù)位鎖止機(jī)構(gòu)。
7. To prevent the disc assembly from returning to its closed position after action, the dry alarm valve shall be equipped with an anti reset locking mechanism.
8、干式報(bào)警閥的滴水閥，通過小孔與大氣相通，用于排出中間室的少量滲水，防止系統(tǒng)誤動(dòng)，滴水閥在水流加大時(shí)自動(dòng)關(guān)閉。
8. The drip valve of the dry-type alarm valve is connected to the atmosphere through a small hole to discharge a small amount of water seepage from the intermediate chamber to prevent the system from misoperation. The drip valve automatically closes when the water flow increases.
干式報(bào)警閥的設(shè)置要求包含八個(gè)內(nèi)容，就是以上所講解的了，您對(duì)此有什么理解可以來我們網(wǎng)站
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The setting requirements of dry alarm valve include eight contents, which are explained above. Please visit our website for your understanding http://www.xintli.net Contact and share, or talk about your needs!
