Can the hoisting port of the generator set and the civil air inlet shaft be used together?

The most standardized approach should be to build an air collection chamber on the side of the ventilation shaft in the civil air defense area. The partition wall between the ventilation shaft and the civil air defense area (i.e., the civil air defense empty wall) should be in the form of double civil air defense doors. , (select 2 channels of BFM0176-15). During normal ventilation, the door is always open, and the air duct does not directly pass through the empty wall, but directly passes through the brick wall of the air collecting room without setting up a casing. This is currently the most standardized approach. If the conditions are not met, for example, the space is not enough for an air collection chamber, the exhaust room is too small, etc., then the only option is to install steel casings on the adjacent walls. However, the pipes of general air ducts are The diameters are very large. In addition to setting up casings, in times of war, it is necessary to seal the air ducts. That is, in times of war, the normal air ducts are dismantled, and steel plates are welded on both sides of the casing to install sealing.