风管加工竖井内通风管道垂直安装，由于空间少，又不便于以后检修，故风管一般采用外套角钢法兰连接以增加连接点的牢固程度和强度，并把法兰作成“井”形，吊筋直接吊在角钢法兰的吊耳上而不另设支撑件。
The air duct in the air duct processing shaft is vertically installed. Due to the small space and inconvenience for future maintenance, the air duct is generally connected with an outer sleeve angle steel flange to increase the firmness and strength of the connection point, and the flange is made into a "well" shape. The hanging bar is directly suspended on the lifting lug of the angle steel flange without additional supports.
风管加工的时候不能在其内部设置加固框或者加固筋，若是加了会对通风管道的质量造成影响。
When the air duct is processed, it is not allowed to set reinforcement frame or reinforcement bar inside it. If it is added, it will affect the quality of the air duct.
济南风管加工不能使用C型直角插条和S型插条的连接方式，对于一些特殊的通风管道，不能采用按扣式的咬口。通风管道制作完之后，还需要用清洗液进行清洗，达到标准后才能封口。
The connection mode of C-type right angle and S-type inserts cannot be used in Jinan air duct processing. For some special air ducts, snap joint cannot be used. After the ventilation pipe is made, it needs to be cleaned with cleaning solution, and it can be sealed after reaching the standard.
风管加工过程中应减少出现纵向接缝，不能出现横向接缝，而且通风管道的缝隙处要按照设计洁净等级要求，然后采用密封胶将其堵严，通风管道的板材接缝的密封面要设在通风管道壁的正压侧。通风管道加工过程中要做好防腐蚀措施，管道零件需要经过镀锌处理。
During the processing of the air duct, the longitudinal joints shall be reduced, and the transverse joints shall not occur. The joints of the air duct shall be sealed with sealant according to the design cleanliness level requirements. The sealing surface of the plate joints of the air duct shall be set at the positive pressure side of the air duct wall. Anti corrosion measures shall be taken during the processing of ventilation pipes, and pipe parts shall be galvanized.
通风管道制作完毕之后，还要用清洗液进行清洗，只有到达清洗标准之后，才可以及时封口。
After the fabrication of the ventilation pipe, it shall be cleaned with cleaning solution. Only after the cleaning standard is reached, can it be sealed in time.
如果是彩色涂层钢板通风管道的话，应该保持内壁是光滑的，并且风管加工的过程中，还不能将涂层损坏，若是呈现损坏的部位，需要用环氧树脂涂刷在外表即可。别的风管加工的过程中，还要做好防腐蚀办法，不能运用抽芯铆钉，并且在通风管道零件装配的时分，这些零件都要经过镀锌处理才行。
If it is a color coated steel plate ventilation duct, the inner wall should be kept smooth, and the coating should not be damaged during the processing of the air duct. If the damaged part appears, it needs to be painted on the surface with epoxy resin. In the process of processing other air ducts, anti-corrosion measures shall be taken, and pop rivets shall not be used. In addition, these parts shall be galvanized during the assembly of air duct parts.
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