1. Preliminary preparation
2. Block one end of the system into the non cleaning air duct, so as to fully isolate the cleaning area and non cleaning area and avoid secondary pollution.
3. Connect and fix the vacuum dust collection system with the air duct system, and turn on the vacuum cleaner.
4. Put the cleaning robot into the air duct for uniform cleaning.
5. After cleaning this section of air duct, close the vacuum cleaner and deal with the dirt of the collector.
6. Clean the fire damper of the operation section. If it cannot be cleaned, it shall be cleaned at one side of the fire damper.
7. The video monitoring system monitors and records the air duct before, during and after cleaning, and saves the pictures.
8. Remove the suction pipe and suction pipe disc, restore the cleaned air outlet, use the same material of the original system prepared in advance, close the air outlet with a rivet gun, seal the gap with sealant, and restore the thermal insulation material.
9. Check the strength of the air duct ceiling. If the strength is not enough, install expansion bolts on the ceiling and reinforce it with prefabricated angle steel tray. Operate in strict accordance with the standard on the principle of not affecting the strength of the air duct. After the air outlet and filter screen are removed, clean them with high-pressure water gun at the * location.
10. Collect all cleaned dirt, seal and transport it out, and transport it to the designated place after treatment.
11. After the air duct of one system is cleaned, the site shall be sorted out and restored to its original state.
12. Coil cleaning.
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