Working principle of air conditioning hood
The low-pressure gaseous refrigerant will be pressurized by the compressor and enter the condenser and gradually condensed into a high-pressure liquid. During the condensation process, the refrigerant releases a large amount of heat energy. This heat energy is absorbed by the cooling water in the condenser and sent to the outdoor cooling tower, where it is released into the air. Then, when the high-pressure liquid refrigerant in the condenser flows through the throttling and pressure-reducing device in front of the evaporator, it vaporizes due to the sudden change in pressure, forming a gas-liquid mixture and entering the evaporator. The refrigerant continuously vaporizes in the evaporator and absorbs heat from the frozen water to reach a lower temperature.
What technical measures should be taken if the hanging code installation of the air-conditioning wind cabinet bracket is not standardized
It depends on the actual installation and use needs.
When selecting a wind cabinet or duct air supply unit, the first thing to determine is the air supply distance, actual use requirements and other key parameters, and then through appropriate conversion, the specifications of the unit to be selected can be obtained. Call the static pressure value.
If you can’t do it yourself, you should find professionals in the industry to confirm and calculate clearly to avoid improper selection that will cause abnormal use later.
Calculation method for the installation spacing of pipe bridges: 1. When the long side of the air duct is ≤300mm, it should be installed by hanging code, and the spacing of the booms is ≤1500mm. 2. Specifications for the horizontal diameter of the installation hanger: when the side length of the air duct is ≤630mm, L25x3 angle steel should be used; when the long side of the air duct is >630mm, L30X4 angle steel should be used. 3. Installation boom specifications: When the side length of the air duct is ≤630mm, ￠6 round steel should be used; when the long side of the air duct is >630mm. ￠8 or ￠10 round steel should be used. 4. The installation spacing of the boom. When the air duct is installed horizontally: the long side of the air duct is ≤630mm, the bracket spacing should be ≤3.5m; when the long side of the air duct is 630-1000mm, the bracket spacing should be ≤2.5m; the long side of the air duct is ≤2.5m. When the air duct is 1000mm-1500mm, the distance between brackets should be ≤1.5mm; when the long side of the air duct is ≥1500mm, the distance between brackets should be ≤1m; when the air duct is vertically hoisted, the distance between brackets should be ≤2.4m. 5. When the length of the air duct is >10m, reinforcement and anti-sway supports should be installed to prevent the air duct from swinging. A single straight pipe should have at least 2 reinforcement points, and each system should not be less than 1. 6. The position of the boom should be accurate, the shaft should be vertical, and the crossbar should be flat. 7. When air ducts pass through walls or floors, they should have protective casings and must be fire-proof sealed. 8. The air duct should not be installed in contact with the ceiling. 9. Waterproof and leakage measures should be taken when the air duct passes through the roof. 10. If you need to install air ducts on the ground, you should also use metal brackets to form a suspended structure. 11. When connecting branch pipes with a length >500mm to the air outlet, reinforcement and protection measures should be taken. 12. Fire dampers, regulating valves, etc. should be equipped with separate cranes and brackets. 13. The air outlet section with high pressure (P≥1000Pa) should be equipped with more than 2 reinforced supports. 14. The air supply outlets must be at the same elevation, horizontally and vertically, with a flat surface, flush with the wall, and equal or even spacing. 15. All metal parts in the air duct system must be anti-corrosion treated.