涩老板在线免费视频_午夜成人精品_神马理论午夜,,_亚洲有薄码区久久欧美精品一区_97人人色_神马在线精品_成人熟女一区二区_亚洲二区三区四区_人妻午夜免费_大鸡巴猛男爆操骚逼国产一区二区_丁香婷婷久久一区二区三区_岛国内射美女_亚洲一级电影,亚洲欧美日韩国产最新版,亚洲五月综合缴情综合久久本,少妇色情喷水又紧又爽小说,巜上司的少妇的滋味,国产精品三级女人国产香蕉,亚洲最好的免费电影,欧美亚洲国产成人精品,国产永久一区二区三区,亚洲综合一区无码精品,歳の熟女セックス,内射带小孩熟妇,果冻传媒在线看免费视频观看,成人欧美一区二区三区片,亚洲 片内射欧美美妇,一本无码人妻在中文字幕免费,亚洲无毛视频,中文字幕丰满孑伦无码专区,亚洲爆乳无码专区色戒纶理,肉乳床欢无码片动漫软件,欧美日韩一区二区另类,久热只有精品在线直播,精品亚洲一区二区在线播放,精品国产乱码久久久久久影片,国产一级高清在线观看,国产精品福利在线一区,成人动漫下载,乱伦性爱视频,xo无码AV毛,国产黄A片免费网站免费,日韩欧美一级特黄特色大片

The oil fume purification system is composed of fan, smoke collecting hood, smoke exhaust pipe and oil fume purifier. The importance of fire smoke exhaust pipe to the whole kitchen smoke exhaust system is obvious. So, as such an important component, how to choose the material of fire smoke exhaust pipe?

目前廚房排煙管道常用的材料有不銹鋼板和鍍鋅鋼板。消防排煙管道鍍鋅鋼板通過在鋼板表面涂上一層金屬鋅來防銹。因為鋅的化學性比鐵高，鋅往往比鐵先氧化，從而保護鐵層免受損壞。不銹鋼與鉻形成合金，并在其表面形成非常薄、牢固和精細穩定的富鉻氧化膜。這種緊密附著的富鉻氧化物保護了表面，可以防止氧原子繼續氧化，從而獲得耐腐蝕性。應該說兩者都有很好的防銹能力。

At present, the commonly used materials of kitchen smoke exhaust pipes are stainless steel plate and galvanized steel plate. A layer of zinc is coated on the surface of the smoke exhaust pipe through the galvanized steel plate. Because zinc is more chemical than iron, zinc often oxidizes before iron, so as to protect the iron layer from damage. Stainless steel is alloyed with chromium and forms a very thin, firm, fine and stable chromium rich oxide film on its surface. This closely attached chromium rich oxide protects the surface and can prevent the continuous oxidation of oxygen atoms, so as to obtain corrosion resistance. It should be said that both have good anti rust ability.

相比之下，建議你選擇不銹鋼板，那么為什么呢？這要從油煙的成分說起。油煙的成分非常復雜，與燃料種類、食用油種類、配料、烹飪時間、烹飪溫度、烹飪方法等諸多因素有關。

In contrast, I suggest you choose stainless steel plate, so why? This should start with the composition of oil fume. The composition of oil fume is very complex, which is related to many factors, such as fuel type, edible oil type, ingredients, cooking time, cooking temperature, cooking method and so on.

不同種類的食用油在高溫下有200多種熱解產物，包括烴類、醛類、酮類、醇類、烴類、脂肪酸類、芳香族化合物和雜環化合物等。有些產品會與水相結合形成亞硝酸、硝酸、碳酸等腐蝕性物質，經過排煙管道時不可避免地會對排煙管道造成腐蝕。因此，除了防銹外，排煙管道的材質也要有一定程度的耐弱酸性。

There are more than 200 pyrolysis products of different kinds of edible oil at high temperature, including hydrocarbons, aldehydes, ketones, alcohols, hydrocarbons, fatty acids, aromatic compounds and heterocyclic compounds. Some products will combine with water to form corrosive substances such as nitrite, nitric acid and carbonic acid, which will inevitably corrode the smoke exhaust pipe when passing through the smoke exhaust pipe. Therefore, in addition to rust prevention, the material of smoke exhaust pipe should also have a certain degree of weak acid resistance.

以上就是為大家介紹的有關濟南通風管道的詳細介紹,希望對您有所幫助.如果您有什么疑問的話,歡迎聯系我們.我們將以的態度,為您提供服務http://www.okok0579.com

The above is the detailed introduction of Jinan ventilation duct. I hope it will be helpful to you If you have any questions, please contact us We will provide you with professional service http://www.okok0579.com