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.

　　工业污染控制用除尘、国产精品伦一区二区三级视频、吸油等排风管、工业环境或岗位舒适用送风管、煤矿抽放瓦斯用抽放瓦斯系统、煤矿矿井环境控制用送回风系统。

　　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.

　　通风99无码熟妇丰满人妻啪啪一般有:净化系统送回风管、空调通风管、工业送排风通风管、系统吸排风管、矿用抽放瓦斯管、矿用涂胶布风筒等。

　　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.

　　在通风系统中的风管是相互连接的一个整体，必然得遵循各支路阻力平衡规律，当风管系统的结构形式、99无码熟妇丰满人妻啪啪尺寸一经确定，在一定的风机作用下，各段的风量是按阻力平衡规律自动分配的。

　　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.

　　在设计计算时未经阻力平衡计算，会导致系统实际风量分配与设计不符。

　　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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