Ventilation pipes will accumulate a lot of impurities with the increasing use of time, these impurities stored in the pipeline for a long time, in operation will accelerate its oil condensation, excessive temperature, constitute damage to pneumatic valves, hydraulic components, etc., constitute a great impact on normal operation. Therefore, regular cleaning of ventilation piping equipment is very necessary.
(1) When the duct is connected with the fan, a soft joint should be added at the inlet and outlet of the fan, and the cross-sectional dimension of the soft joint should be the same as the inlet and outlet of the fan. The hose joint can be made of canvas, artificial leather and other materials. The hose length should not be less than 200, the elasticity should be suitable, and the flexible hose can cushion the vibration of the fan.
(2) Before the air duct is connected with the dust removal equipment and the heating equipment, the prefabrication and the equipment shall be discontinued according to the theoretical drawing after the equipment is finished.
(3) When Jinan ventilation duct is installed, the inlet and outlet air should be opened when the duct is prefabricated. If the outlet is to be opened in the duct at the end of the installation, the interface should be close.
(4) When transporting condensate or gas with high moisture content, the horizontal pipeline should be provided with a slope and a drainage pipe should be connected at the low point. The longitudinal joint is not suitable for the bottom of the duct, and the sealing treatment should be stopped for the joints at the bottom.
(5) For the steel plate air duct conveying inflammable and explosive gases, the connecting flange of the air duct should be connected with the electrostatic grounding grid.
(6) when the height of the horizontal airway is above 4m, the installation personnel should fasten the seat belt. The springboard on the scaffolding or movable support should be fixed well, the springboard width should conform to safety standards, and the installers on the scaffolding should carry bags to avoid falling things or electric drills.
(7) After the double suspender bracket is in place in the air duct, it should ensure that the cross-bearing is straight, the suspender rod does not change, and the force of the double suspender rod is uniform.
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