Box structure of air-cooled expansion purified air conditioning unit

1. The box frame adopts the special-shaped steel frame structure. The box panel adopts double panel structure with insulation layer in the middle, the inner panel is δ 0.5mm thick high quality galvanized steel plate, and the outer panel is cold rolled steel plate electrostatic powder spraying.

2. The thickness of the inner wall panel is 0.8mm, and the outer panel is 1.0mm. The insulation layer should be high pressure polyurethane foam, and the insulation density should be 48.1kg/m³. The thickness of the insulation layer should ensure that the box surface of the unit has no condensation drop in operation, and the thickness of the insulation layer of the panel should not be less than 50mm. The air leakage rate of the unit should be 1%, and the external noise is 75.1dB (1 meter away from the air conditioner).

3. The outer surface of the box should have no obvious scratches, rust and indentation, and the surface should be smooth, uniform coating, consistent color, no flow marks, bubbles and peeling. If the box is shipped in bulk and assembled on site, the final installation effect should be completely consistent with the external and internal quality of the factory assembly.

4. the inspection door should be set up in the appropriate position of the box, and ensure strict, flexible and convenient maintenance. Good sealing performance, to prevent the cold bridge. The sections are connected, and the standard interface connection of each section can be interchangeable; the wall panel of each functional section of the unit can be removed for maintenance. All unit surfaces are flat, the surface is continuously smooth, clear and smooth appearance without joints.                                                                                    5. the external size deviation of the combined fan cabinet: the height direction and the horizontal direction size can have the deviation, but must be controlled within 8%. The air conditioning box lights are set to 24V, 60W (safe voltage).