消防工程中常用的開放式灑水噴頭有開放式、水簾式和噴淋式三種。下面就為大家簡單的說一下相關內容。
There are three types of open sprinkler heads commonly used in fire engineering: open sprinkler, water curtain sprinkler and sprinkler sprinkler. Let's briefly talk about the relevant content.
1.打開噴頭。這種類型的灑水器是沒有釋放機構的灑水器。與封閉式噴頭的區別在于沒有感溫元件和密封部件。它通常用于雨淋滅火系統。
1. turn on the nozzle. This type of sprinkler is a sprinkler without a release mechanism. The difference from the closed sprinkler is that there are no temperature sensing elements and sealing parts. It is usually used in deluge extinguishing systems.
2.水幕噴頭。該噴嘴噴出的水呈均勻的水幕狀，起到阻火、隔火的作用。
2. water curtain nozzle. The water ejected from the nozzle is in the shape of a uniform water curtain, which plays the role of fire resistance and fire separation.
3.噴嘴。這種噴頭噴出小水滴，總噴水面積比普通噴頭大幾倍。由于吸熱面積大，冷卻效果強，水霧熱汽化形成的大量水蒸氣對火焰也有窒息作用。噴嘴主要用于細水霧系統，中速型多用于設備整體的冷卻和滅火，高速型多用于帶油的冷卻和滅火設備。
3. nozzle. The sprinkler sprays small water drops, and the total spraying area is several times larger than that of the ordinary sprinkler. Due to the large heat absorption area and strong cooling effect, a large amount of water vapor formed by the thermal vaporization of water mist can also asphyxiate the flame. The nozzle is mainly used for water mist system. The medium speed type is mainly used for overall cooling and fire extinguishing of equipment, and the high-speed type is mainly used for cooling and fire extinguishing equipment with oil.
此外，我們還可以了解開式噴頭和閉式噴頭的區別：
In addition, we can also understand the difference between open sprinkler and closed sprinkler:
自動噴水滅火系統中的噴頭分為開放式和封閉式兩種。噴灑方式分為上噴、下噴和側噴三種。開放式灑水器一般用于雨淋自動滅火系統，而封閉式灑水器一般用于自動灑水系統。兩者的安裝方法相同，但系統的工作原理不同。在不同環境溫度場所設置噴嘴時，應嚴格根據環境暴露情況選擇噴嘴等級。
Sprinkler heads in automatic sprinkler system are divided into open type and closed type. There are three spraying methods: up spraying, down spraying and side spraying. Open sprinkler is generally used for deluge automatic fire extinguishing system, while closed sprinkler is generally used for automatic sprinkler system. The installation method is the same, but the working principle of the system is different. When setting nozzles in places with different ambient temperatures, the nozzle grade shall be selected strictly according to the environmental exposure.
封閉式噴頭：內置玻璃球，玻璃球承載噴頭墊片。發生火災時，球內的液體受熱膨脹，壓力升高。當壓力達到規定值時，玻璃球爆裂，墊片失去支撐。加壓的水噴出了火。它用于消防噴淋系統。消防噴淋系統管網有水壓。當玻璃球爆裂時，管網中的水會自動噴出，形成火災。
Closed sprinkler: built in glass ball, which carries sprinkler gasket. In case of fire, the liquid in the ball will expand and the pressure will rise. When the pressure reaches the specified value, the glass ball bursts and the gasket loses support. Pressurized water spurted fire. It is used for fire sprinkler system. There is water pressure in the pipe network of the fire sprinkler system. When the glass ball bursts, the water in the pipe network will automatically spray out, forming a fire.
開放式灑水頭：無內置玻璃球，出水口為開放式，水壓通過灑水頭直接噴出，開放式灑水頭由本體、支架和防濺板組成。一般用于雨淋滅火系統，與火災自動報警系統配合使用。當現場發生火災時，火災自動報警系統收到信號后控制雨淋閥打開，水壓通過噴頭直接噴出，形成大范圍滅火。
Open sprinkler head: there is no built-in glass ball. The water outlet is open. The water pressure is directly sprayed through the sprinkler head. The open sprinkler head is composed of body, support and splash plate. It is generally used for deluge fire extinguishing system and is used in conjunction with automatic fire alarm system. When a fire occurs on site, the automatic fire alarm system will control the deluge valve to open after receiving the signal, and the water pressure will be directly sprayed through the nozzle to form a large-scale fire extinguishing.
川消小編提醒，開放式噴頭和封閉式噴頭的區別只是少了一個由熱敏元件組成的釋放機構。兩者具有相同的流動特性和噴霧曲線。封閉式噴頭是一個或多個噴頭噴水，開放式噴頭是整個區域的所有噴頭一起噴水，封閉式噴頭一個接一個地爆破噴水。
Chuanxiao Xiaobian reminded that the difference between open sprinkler and closed sprinkler is that there is only a release mechanism composed of thermal elements. Both have the same flow characteristics and spray curves. The closed sprinkler is one or more sprinklers spraying water, the open sprinkler is all sprinklers spraying water together in the whole area, and the closed sprinkler is blasting and spraying water one by one.
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