Ventilation pipes are mainly used in industrial and construction projects. The application areas mainly include: the clean room system of electronic industry, the cleaning system of medicine and food aseptic workshop, the central air conditioning system of hotels, shopping malls, hospitals, factories and office buildings.

　　工業(yè)污染控制用除塵、排煙、吸油等排風(fēng)管、工業(yè)環(huán)境或崗位舒適用送風(fēng)管、煤礦抽放瓦斯用抽放瓦斯系統(tǒng)、煤礦礦井環(huán)境控制用送回風(fēng)系統(tǒng)。

　　Industrial pollution control uses exhaust pipes, such as dust removal, smoke exhausting and oil absorption, industrial environment or post comfort air supply pipe, drainage system for gas drainage in coal mines, and air supply and return system for environmental control in coal mines.

　　通風(fēng)管道一般有:凈化系統(tǒng)送回風(fēng)管、空調(diào)通風(fēng)管、工業(yè)送排風(fēng)通風(fēng)管、系統(tǒng)吸排風(fēng)管、礦用抽放瓦斯管、礦用涂膠布風(fēng)筒等。

　　Ventilation pipes usually include: purification system, return air pipe, central air conditioning ventilation pipe, industrial ventilation and ventilation pipe, environmental protection system suction and exhaust pipe, mine drainage gas pipe, mine coating cloth air duct and so on.

　　在通風(fēng)系統(tǒng)中的風(fēng)管是相互連接的一個(gè)整體，必然得遵循各支路阻力平衡規(guī)律，當(dāng)風(fēng)管系統(tǒng)的結(jié)構(gòu)形式、管道尺寸一經(jīng)確定，在一定的風(fēng)機(jī)作用下，各段的風(fēng)量是按阻力平衡規(guī)律自動(dòng)分配的。

　　In the ventilation system of wind pipe is a whole connected, must follow the branch resistance balance law, when the structure, size of pipe duct system is confirmed, the fan under certain sections of the air volume according to the automatic distribution of resistance balance law.

　　在設(shè)計(jì)計(jì)算時(shí)未經(jīng)阻力平衡計(jì)算，會(huì)導(dǎo)致系統(tǒng)實(shí)際風(fēng)量分配與設(shè)計(jì)不符。

　　Without the calculation of resistance balance in the design and calculation, the actual air volume distribution and design of the system will not conform to the design.
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