水噴霧滅火系統和高壓細水霧具體有哪些區別？
來源：http://www.xintli.net/ 日期：2022-06-29
細水霧特別是高壓細水霧目前使用已經較為廣泛，但很多朋友會誤以為水噴霧滅火系統也就是高壓細水霧，其實兩者還是有很大區別的。下面就由川消小編來為大家分析一番。
Water mist, especially high-pressure water mist, has been widely used at present, but many friends will mistakenly think that water spray fire extinguishing system is also high-pressure water mist. In fact, there is a great difference between the two. Now let's have a brief analysis by Sichuan Xiaobian.
霧粒直徑的區別
Difference of fog particle diameter
水噴霧：水霧噴頭的霧滴體積百分比特征直徑DV0.90，應小于1mm。也就是說，噴霧液體總體積中，在該直徑以下霧滴所占體積的百分比不小于90%。
Water spray: the characteristic diameter of droplet volume percentage of water spray nozzle dv0.90 shall be less than 1mm. That is, in the total volume of spray liquid, the percentage of droplets below this diameter in the volume shall not be less than 90%.
細水霧：細水霧系統中經噴頭噴出并在噴頭軸線向下1m處的平面上形成的霧滴直徑Dv0.50小于200μm、Dv0.99小于400μm的水霧滴。也就是說，在這個平面上，有99%的霧滴直徑小于400μm,有50%的霧滴直徑小于200μm。
Water mist: in the water mist system, the droplet diameter dv0.50 is less than 200, which is sprayed through the nozzle and formed on the plane 1m downward from the nozzle axis μ m. Dv0.99 less than 400 μ M. In other words, 99% of the droplets on this plane have a diameter less than 400 μ m. 50% of the droplet diameter is less than 200 μ m。
總結一句話來說就是：“細水霧直徑比水噴霧的小，用水量更少，帶來的水漬損失小。”
In a word, "the diameter of water mist is smaller than that of water spray, with less water consumption and less water loss."
系統組件的區別
Differences in system components
水噴霧：水噴霧采用的是離心泵和水霧噴頭，系統對水質要求也不高，只需要在雨淋閥前安裝過濾器，管道也可以采用熱鍍鋅鋼管。而且水噴霧各部分彼此獨立，可以不需要同一家廠家提供。不同組件的故障問題不同，后期維修起來很麻煩，且成本高。
Water spray: centrifugal pump and water spray nozzle are used for water spray. The system does not have high requirements for water quality. Only filters need to be installed in front of the deluge valve, and hot-dip galvanized steel pipes can also be used for pipes. Moreover, each part of the water spray is independent of each other, so it does not need to be provided by the same manufacturer. Different components have different fault problems. It is troublesome and costly to repair later.
細水霧：細水霧采用的是柱塞泵，因對水質要求高，還需使用不銹鋼水箱和管道。列如：這次變電站安裝細水霧系統的管道及閥門均采用不銹鋼無縫鋼管，使用壽命長達60年，管道連接方式為氬弧焊接，利于后期變壓器維護檢修時，方便拆卸細水霧管道。且細水霧滅火系統組件是成套是有3C認證的，由廠家成套提供。后期維修很方便。
Water mist: the plunger pump is used for water mist. Due to the high requirements for water quality, stainless steel water tank and pipeline are also required. For example, the pipelines and valves of the water mist system installed in the substation this time adopt stainless steel seamless steel pipes, with a service life of up to 60 years. The pipeline connection method is argon arc welding, which is conducive to the disassembly of the water mist pipeline during the later maintenance and repair of the transformer. In addition, the water mist fire extinguishing system components are complete sets with 3C certification and provided by the manufacturer in complete sets. It is very convenient for later maintenance.
應用場所的區別
Differences between application sites
水噴霧：水噴霧水微粒直徑比較大，受氣流影響會比較小，因此可以應用在室外的場所。
Water spray: water spray has a large diameter of water particles and is less affected by air flow, so it can be used in outdoor places.
細水霧：水微粒直徑小，比較容易受氣流的影響因此不適用于室外場所。
Water mist: the diameter of water particles is small, which is easily affected by air flow, so it is not suitable for outdoor places.
滅火種類的區別
Difference of fire extinguishing types
水噴霧滅火系統可用于撲救固體物質火災、丙類液體火災、飲料酒火災和電氣火災，并可用于可燃氣體和甲、乙、丙類液體的生產、儲存裝置或裝卸設施的防護冷卻。水噴霧滅火系統不得用于撲救遇水能發生化學反應造成燃燒、爆炸的火災，以及水霧會對保護對象造成明顯損害的火災。
The water spray fire extinguishing system can be used to extinguish solid substance fires, class C liquid fires, beverage fires and electrical fires, and can be used for protective cooling of production, storage devices or loading and unloading facilities of combustible gases and class A, B and C liquids. The water spray fire extinguishing system shall not be used to extinguish fires that can cause combustion and explosion due to chemical reaction in the presence of water, and fires in which the water mist will cause obvious damage to the protected objects.
川消細水霧滅火系統適用于撲救相對封閉空間內的可燃固體表面火災、可燃液體火災和帶電設備的火災。細水霧滅火系統不適用于撲救可燃固體的深位火災；能與水發生劇烈反應或產生大量有害物質的活潑金屬及其化合物的火災；可燃氣體火災。
Chuanxiao water mist fire extinguishing system is applicable to extinguishing the fire of combustible solid surface, combustible liquid and electrified equipment in relatively closed spaces. The water mist fire extinguishing system is not suitable for extinguishing the deep fire of combustible solids; Fire of active metals and their compounds that can react violently with water or produce a large number of harmful substances; Combustible gas fire.
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