三大报警阀在建筑中的运用

译文：
一、 报警阀在建筑中的功用： 报警阀是自动喷水灭火系统中接通或切断水源，并启动报警器的装置。在自动喷水灭火系统中，报警阀是至关重要的组件，其作用有三：接通或切断水源、输出报警信号和防止水流倒回供水源，以及通过报警阀可以对系统的供水装置和报警装置进行检验。 二、三大报警阀在建筑中的运用： 报警阀根据系统的不同分为湿式报警阀、干式报警阀和雨淋阀。 1．湿式报警阀用于湿式喷水灭火系统。它的主要功能是：当喷头开启时，湿式阀能自动打开，并使水流入水力警铃发出报警信号。 2．干式报警阀用于干式喷水灭火系统。它的阀瓣将阀门分成两部分，出口侧与系统管路和喷头相连，内充压缩空气，进口侧与水源相连。干式阀利用两侧气压和水压作用在阀瓣上的力矩差控制阀瓣的封闭和开启，一般可分为差动型干式报警阀和封闭型干式报警阀两种。 3．雨淋阀用于雨淋喷水灭火系统、预作用喷水灭火系统、水幕系统和水喷雾灭系统。这种阀的进口侧与水源相连，出口侧与系统管路和喷头相连，一般为空管，仅在预 作用系统中充气。雨淋阀的开启由各种火灾探测装置控制。

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原文：
An alarm valve in the construction of the function: Alarm valve is connected to automatic sprinkler system, or cut off water, and start the alarm device. In the automatic sprinkler system, alarm valve is a critical component, and its role to three factors: connect or disconnect the water supply, the output600X Hydraulic Electric Control Valve alarm signal and the prevention of water pumped back into the water supply source, and through the alarm valve can be installed on the system of water supply and alarm device for testing. Second, the three alarm valve use in construction: Alarm valve according to the system were divided into wet alarm valves, dry-type alarm valve and the deluge valve. 1. Wet alarm valve for wet sprinkler systems. Its main function is: When the nozzle is turned on, wet valve automatically opens, and make water flows into the hydraulic alarm bell triggering an alarm. 2. Dry-type alarm valve700X Pump Control Valve for dry-type sprinkler system. It will be the valve flap valve into two parts, the export side with the system piping and the nozzle connected to the compressed air inside the filling, import side and water connected. Dry-type valves use air pressure and water pressure acting on both sides of the flap valve torque difference control valve on the valve closed and open, generally can be divided into differential-type dry-type alarm valve and sealed dry-type alarm 800X Differential By-Pass Balancing Valvevalve two kinds of. 3. Deluge valve for the rain sprinkler systems, pre-action sprinkler systems, water systems and water spray curtain destroy the system. The import side of this valve and water connected to the export side connected with the system piping and nozzles, usually air traffic control, only the role of the system in the pre-inflated. Deluge valve opening control by a variety of fire detection devices.