報警閥的類型及適用范圍和作用
來源：http://m.xintli.net/ 日期：2022-06-09
濕式報警閥
Wet alarm valve
濕式報警閥是濕式自動噴水滅火系統的主要部件，安裝在總供水干管上，連接供水設備和配水管網，是一種只允許水流單方向流入配水管網，并在規定流量下報警的止回型閥門，在系統動作前，它將管網與水流隔開，避免用水和可能的污染；當系統開啟時，報警閥打開，接通水源和配水管；在報警閥開啟的同時，部分水流通過閥座上的環形槽，經信號管道送水力警鈴，發出音響報警信號。
The wet alarm valve is the main component of the wet automatic sprinkler system. It is installed on the main water supply pipe to connect the water supply equipment and the water distribution pipe network. It is a check valve that only allows the water flow to flow into the water distribution pipe network in one direction and alarms at the specified flow. Before the system acts, it separates the pipe network from the water flow to avoid water use and possible pollution; When the system is opened, the alarm valve is opened to connect the water source and distribution pipe; When the alarm valve is opened, part of the water flows through the annular groove on the valve seat and is sent to the hydraulic alarm bell through the signal pipeline to send out an audible alarm signal.
濕式報警閥平時閥芯前后水壓相等（水通過導向管中的水壓平衡小孔，保持閥板前后水壓平衡）。由于閥芯的自重和閥芯前后所受水的總壓力不同，閥芯處于關閉狀態（閥芯上面的總壓力大于閥芯下面的總壓力）。發生火災時，閉式噴頭噴水，因為水壓平衡小孔來不及補水，報警閥上面水壓下降，此時閥下水壓大于閥上水壓，于是閥板開啟，向立管及管網供水，同時發出火警信號并啟動消防泵。
At ordinary times, the water pressure in front of and behind the valve core of the wet alarm valve is equal (the water passes through the water pressure balance hole in the guide pipe to maintain the water pressure balance in front of and behind the valve plate). Due to the difference between the self weight of the valve element and the total pressure of the water before and after the valve element, the valve element is closed (the total pressure above the valve element is greater than the total pressure below the valve element). In case of fire, the closed sprinkler sprays water. Because the water pressure balance hole is too late to make up water, the water pressure above the alarm valve drops. At this time, the water pressure below the valve is greater than the water pressure above the valve, so the valve plate is opened to supply water to the riser and pipe network. At the same time, the fire alarm signal is sent and the fire pump is started.
干式報警閥
Dry alarm valve
川消干式報警閥主要用在干式自動噴水滅火系統和干濕式自動噴水滅火系統中。其作用是用來隔開噴水管網中的空氣和供水管道中的壓力水，使噴水管網始終保持干管狀態，當噴頭開啟時，管網空氣壓力下降，干式閥閥瓣開啟，水通過報警閥進入噴水管網，同時部分水流通過報警閥的環形槽進入信號設施進行報警。
Chuanxiao dry alarm valve is mainly used in dry automatic sprinkler system and dry wet automatic sprinkler system. Its function is to separate the air in the water spray pipe network and the pressure water in the water supply pipeline, so that the water spray pipe network always maintains the main pipe state. When the nozzle is turned on, the air pressure in the pipe network drops, the dry valve disc opens, the water enters the water spray pipe network through the alarm valve, and part of the water flows through the annular groove of the alarm valve and enters the signal facilities for alarm.
干式報警閥由閥體、差動雙盤閥板、充氣塞、信號管網、控制閥等組成。
The dry alarm valve is composed of valve body, differential double disc valve plate, inflation plug, signal pipe network, control valve, etc.
1-閥體；2-差動雙盤閥板；3-充氣塞；4-閥前壓力表；5-閥后壓力表；6-角閥；7-止回閥；8-信號管；9、10、11-截止閥；12-小孔閥；13-總閘閥
1- valve body; 2-differential double disc valve plate; 3-inflation plug; 4-pressure gauge in front of valve; 5- pressure gauge behind valve; 6-angle valve; 7-check valve; 8-signal tube; 9. 10, 11 stop valve; 12- orifice valve; 13- main gate valve
雨淋報警閥
Deluge alarm valve
雨淋閥用于雨淋噴水滅火系統、預作用噴水滅火系統、水幕系統和水噴霧滅火系統。這種閥的進口側與水源相連，出口側與系統管路和噴頭相連。一般為空管，僅在預作用系統中充氣。雨淋閥的開啟由各種火災探測裝置控制。雨淋閥主要有杠桿型、隔膜型、活塞型和感溫型等幾種。
Deluge valve is used for deluge sprinkler system, pre action sprinkler system, water curtain system and water spray fire extinguishing system. The inlet side of the valve is connected with the water source, and the outlet side is connected with the system pipeline and sprinkler. Generally, it is an empty pipe, which is only inflated in the pre action system. The opening of deluge valve is controlled by various fire detection devices. Deluge valves are mainly lever type, diaphragm type, piston type and temperature sensing type.
濕式報警閥組由濕式報警閥、水力警鈴、壓力開關、延時器、控制和檢修閥、檢驗裝置組成。
The wet alarm valve group is composed of wet alarm valve, hydraulic alarm bell, pressure switch, time delayer, control and maintenance valve and inspection device.
干式報警閥組由千式報警閥、水力警鈴、壓力開關、加速器、控制和檢修閥、檢驗裝置、氣壓維護裝置組成。
The dry-type alarm valve group is composed of thousand type alarm valve, hydraulic alarm bell, pressure switch, accelerator, control and maintenance valve, inspection device and air pressure maintenance device.
雨淋報警閥組由雨淋閥、水力警鈴、壓力開關、加速器、控制和檢修閥、啟動裝置、檢驗裝置組成。
The deluge alarm valve group is composed of deluge valve, hydraulic alarm bell, pressure switch, accelerator, control and maintenance valve, starting device and inspection device.
預作用報警閥組由濕式報警閥、雨淋閥、水力警鈴、壓力開關、控制和檢修閥、啟動裝置、檢驗裝置、氣壓維護裝置組成。
The pre action alarm valve group is composed of wet alarm valve, deluge valve, hydraulic alarm bell, pressure switch, control and maintenance valve, starting device, inspection device and air pressure maintenance device.
干濕兩用報警閥組由濕式閥、干式閥、水力警鈴、壓力開關、控制和檢修閥、檢驗裝置組成（千濕兩用系統已不常用）。
The dry and wet alarm valve group is composed of wet valve, dry valve, hydraulic alarm bell, pressure switch, control and maintenance valve and inspection device (the thousand wet dual-purpose system is not commonly used).
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