川消干式、預作用兩種噴水滅火系統的特點比較
來源：http://m.xintli.net/ 日期：2022-06-11
干式噴水滅火系統：
Dry sprinkler system:
干式噴水滅火系統是在濕式系統的基礎上發展起來的，以滿足在寒冷和高溫場所安裝自動滅火系統的需要。該系統由封閉式噴嘴、管路系統、干式報警閥、報警裝置、充氣設備、排氣設備和供水設備組成。管道和噴嘴中通常沒有水，只是處于充氣狀態，所以稱為干式系統或干式管道系統。
Dry sprinkler system is developed on the basis of wet system to meet the needs of installing automatic fire extinguishing system in cold and high temperature places. The system consists of closed nozzle, pipeline system, dry alarm valve, alarm device, inflation equipment, exhaust equipment and water supply equipment. There is usually no water in the pipe and nozzle, but it is in the inflated state, so it is called dry system or dry piping system.
干式噴水滅火系統的主要特點是報警閥后面的管路沒有水，不怕結冰和環境溫度高。因此，該系統適用于環境溫度低于4℃、高于70℃的建筑物和場所。與濕式噴水系統相比，干式噴水系統需要增加一套充氣設備，并且要求管網內的氣壓保持在一定范圍內。因此，管理更復雜，投資也更大。灑水器在滅火方面不如濕式系統快。
The main feature of dry sprinkler system is that there is no water in the pipeline behind the alarm valve, and it is not afraid of ice and high ambient temperature. Therefore, the system is applicable to buildings and places where the ambient temperature is lower than 4 ℃ and higher than 70 ℃. Compared with the wet sprinkler system, the dry sprinkler system needs to add a set of inflation equipment, and the air pressure in the pipe network is required to be kept within a certain range. Therefore, the management is more complicated and the investment is larger. Sprinklers are not as fast as wet systems in extinguishing fires.
預作用噴水滅火系統：
Pre action sprinkler system:
預作用系統將火災自動探測報警技術與自動噴水滅火系統有機結合，起到保護被保護物體的雙重作用。預作用系統由封閉式噴水器、管道系統、雨淋閥、火災探測器、報警控制裝置、充氣設備、控制組件和供水部件組成。這種系統通常是干式的，一旦發生火災，可以實現火災的初步報警，并立即將管網灌滿水，使系統轉為濕式。
The pre action system organically combines the automatic fire detection and alarm technology with the automatic sprinkler system to protect the protected objects. The pre action system consists of closed sprinkler, pipeline system, deluge valve, fire detector, alarm control device, inflation equipment, control components and water supply components. This system is usually dry-type. In case of fire, it can realize the preliminary alarm of fire, and immediately fill the pipe network with water to turn the system into wet type.
川消小編提示，系統的這個改造過程中包含了預備作用的功能，所以稱為預備作用噴水滅火系統。該系統通常在雨淋閥后面的管道中充滿低壓氣體。發生火災時，安裝在保護區內的感溫感煙感火災探測器發出火災報警信號，控制器開啟報警信號，同時聲光顯示報警信號。雨淋閥讓水進入管道并在極短的時間內完成注水過程，將系統變為濕式系統，后續動作與濕式系統相同。
Chuanxiao Xiaobian pointed out that the transformation process of the system includes the function of preparation, so it is called the preparation sprinkler system. The system is usually filled with low-pressure gas in the pipeline behind the deluge valve. In case of fire, the temperature and smoke fire detectors installed in the protection zone will first send out the fire alarm signal, the controller will turn on the alarm signal, and the sound and light display the alarm signal at the same time. The deluge valve allows water to enter the pipeline and completes the water injection process in a very short time, turning the system into a wet system. The subsequent actions are the same as those of the wet system.
(1)與濕式系統相比，該系統通常在預作用閥后的管網中不充水，而是充入低壓空氣或氮氣，或干式管道。只有在發生火災時，火災探測系統才會自動打開預作用閥，使管道充水進入濕式系統。管網通常是無水的，可以避免系統損壞造成的水損。
(1) Compared with the wet system, the system usually does not fill water in the pipe network behind the preaction valve, but fills low-pressure air or nitrogen, or dry pipes. Only in case of fire, the fire detection system will automatically open the preaction valve to fill the pipeline into the wet system. The pipe network is usually anhydrous, which can avoid water loss caused by system damage.
(2)此外，本系統設有預警裝置，可在噴頭動作前及時報警，盡快組織救援。相反，濕式系統必須在噴水后報警。
(2) In addition, the system is equipped with an early warning device, which can give an alarm in time before the nozzle acts, and organize rescue as soon as possible. On the contrary, the wet system must alarm after spraying water.
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