2023-2-14 11:53| 发布者: steelfu4mo| 查看: 632| 评论: 0 |原作者: 佛山万庆物资
Every time to the underground parking garage, in addition to being attracted by luxury cars, there are neat, rows, long, invisible to the head and tail rectangular pipe. This is called ventilation pipe, fire must do, ventilation pipe in ventilation, dehumidification in general basement, underground garage, although there are people in and out, so also need to have human air quality; the basement natural ventilation is very few, generally only entrance and exit, is far less than of the required ventilation capacity; and the basement often moisture, especially in the rainy season, must have strong ventilation to reduce the humidity.
The application of ventilation duct is becoming more and more common. The commonly used materials are:
1. Steel plate
Steel plate is the main material for manufacturing ventilation pipes and components, usually using ordinary steel plate and galvanized steel sheet. The galvanized steel sheet has a protective layer that can prevent corrosion, mainly used for moisture-proof air duct system.
2. Stainless steel plate
Stainless steel plate has high plasticity, toughness, mechanical strength and corrosion resistance, and is often used in the corrosion resistant air duct system in the chemical field.
3. Aluminum board
Including pure aluminum and alloy aluminum, ordinary alloy aluminum plate has high mechanical strength and poor corrosion resistance. Most of the aluminum plate for ventilation engineering are pure aluminum and annealed alloy aluminum plate, with of dry aluminum plate and no spark in collision, and it is mostly used for ventilation pipes with explosion-proof requirements.
4. Plastic composite steel plate
Paste or spray a layer of plastic film on the ordinary steel plate, that is, plastic composite steel plate, has corrosion resistance, bending, occlusion, drilling processing performance and other characteristics, commonly used in air purification system and ventilation and air conditioning system.
5, polyargon ethylene plastic plate
PVC Plastic board has good corrosion resistance, generally do not react with acid, alkali, salt, in the ventilation and air conditioning engineering, mainly used to transport acid, alkali, salt and other corrosive gas pipes and components.
FRP air duct is a kind of light, high strength, corrosion resistant non-metal pipe, using resin, glass fiber, quartz sand as raw materials, widely used in dry oil, chemical and drainage industries.
Composite air duct is made of composite materials, rubber and plastic composite air duct, magnesium chloride ventilation pipe and so on, generally composed of two layers of high strength inorganic material and a layer of insulation material as the base material, using adhesive technology and special structure combination, connection.
Therefore, the properties of the duct of different materials are different. Generally, when choosing the duct, we must consider the characteristics of the material, whether it is suitable for the current construction environment, whether it is suitable for the current construction purpose and effect, how the ventilation efficiency after use and other factors, comprehensive measurement, choose the appropriate material.