報警閥的設(shè)置有什么要求？
來源：http://www.xintli.net/ 日期：2023-02-09
1在準(zhǔn)工作狀態(tài)（警戒狀態(tài)）時，報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，氣壓維持裝置通過節(jié)流孔補壓，維持管網(wǎng)壓力。
1 In the quasi-operating state (alert state), the water distribution pipeline (system side pipe network) after the alarm valve is filled with gas at a certain pressure. In case of a small amount of leakage, the air pressure maintaining device supplements the pressure through the orifice to maintain the pipe network pressure.
2系統(tǒng)側(cè)管網(wǎng)的氣壓值，需要根據(jù)干式報警閥入口前的水源壓力，結(jié)合
川消干式報警閥的工作性能確定（不同廠家的干式報警閥組，工作差動比有所區(qū)別）
2. The air pressure value of the pipe network at the system side should be determined according to the water source pressure before the inlet of the dry alarm valve and the working performance of the Chuanxiao dry alarm valve (the working differential ratio of the dry alarm valve group of different manufacturers is different)
3報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 cavities by the valve disc. The upper cavity (system side) is connected to the system side pipe network filled with compressed gas, and the lower cavity (water supply side) is connected to the water source.
4報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，兩個密封座被中間室隔離，中間室連通報警水道，通過滴水閥與大氣相通。
4. The valve clack of the alarm valve is buckled on the gas-tight seal seat and the water-tight seal seat. The diameter of the gas-tight seal seat is larger than the diameter of the water-tight seal seat. The two seal seats are isolated by the middle chamber, which is connected with the alarm water channel and is connected with 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。
5. The area of the gas seal seat (the area above the valve disc) is larger than the area of the water seal seat (the area under the valve disc contacting with water). Only a small gas pressure on the system side can balance the high water pressure on the water supply side.
6為了干式報警閥的耐用程度（防止動作部件粘結(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-type alarm valve (prevent the binding of the moving parts) and better air tightness, it is usually necessary to fill the base at the system side with bottom water.
7為防止閥瓣組件在動作以后重新回到其關(guān)閉位置上，干式報警閥應(yīng)設(shè)置有防復(fù)位鎖止機構(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，滴水閥在水流加大時自動關(guān)閉。
8 The drip valve of the dry-type alarm valve is connected with the atmosphere through a small hole, and is used to discharge a small amount of water seepage in the middle chamber to prevent the system from misoperation. The drip valve automatically closes when the water flow increases.
9額定工作壓力：
9 Rated working pressure:
⑴干式報警閥的額定工作壓力應(yīng)不低于1.2MPa。
(1) The rated working pressure of dry alarm valve shall not be less than 1.2MPa.
⑵干式報警閥與工作壓力等級較低的設(shè)備配裝使用時，允許將閥的進出口接頭按承受較低壓力等級加工，但在閥上須對額定工作壓力做相應(yīng)的標(biāo)記。
(2) When the dry-type alarm valve is used with equipment with lower working pressure class, it is allowed to process the inlet and outlet joints of the valve according to the lower pressure class, but the rated working pressure must be marked on the valve.
10閥體上的泄水口公稱直徑≥20mm。
10. The nominal diameter of the water outlet on the valve body is ≥ 20mm.
11在閥體的供水側(cè)應(yīng)設(shè)有報警實驗管路，其上閥門應(yīng)處于常閉狀態(tài)。
11 The water supply side of the valve body shall be equipped with an alarm test pipeline, and the valve on it shall be in the normally closed state.
報警閥組是自動噴水滅火系統(tǒng)的關(guān)鍵組件，要求使用閘閥時需有鎖定裝置，否則應(yīng)使用信號閥代替閘閥。另外，干式系統(tǒng)和預(yù)作-用系統(tǒng)等，還需檢驗空氣壓縮機與控制閥、報警系統(tǒng)與控制閥的聯(lián)動是否可靠。更多相關(guān)內(nèi)容就來我們網(wǎng)站
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The alarm valve group is a key component of the automatic sprinkler system. It is required to have a locking device when using the gate valve. Otherwise, the signal valve should be used instead of the gate valve. In addition, the linkage between the air compressor and the control valve, the alarm system and the control valve should also be checked for reliability in the dry-type system and the pre-operation system. Come to our website for more relevant content http://www.xintli.net Consult!
