How Do I Choose the Best Duct System?
The composite duct is represented by rubber-plastic composite duct, which is a kind of rubber made of rubber-plastic composite insulation material, which can completely replace the traditional duct, damper, tuyere, static pressure box and insulation material in the air-conditioning air supply system. Plastic composite duct system.
Composite duct
The composite duct is represented by rubber-plastic composite duct, which is a kind of rubber made of rubber-plastic composite insulation material, which can completely replace the traditional duct, damper, tuyere, static pressure box and insulation material in the air-conditioning air supply system. Plastic composite duct system.
It can be widely used in various major fields. It is a traditional duct that emerged in the 70s and 80s of the 20th century. However, in some specific venues, its disadvantages have become increasingly prominent. The most prominent one is the cleaning problem. Air duct, fiber bag air supply system is a flexible air distribution system (Air Dispersion) made of special fibers. system.
- Chinese name
- Composite duct
- Foreign name
- Durkduct
- Features
- Processed into a variety of mixed materials
- Rise and develop
- 7th and 80th century
Composite air duct (glass fiber magnesium oxychloride cement ventilation duct, referred to as magnesium oxychloride ventilation duct, also called modified inorganic glass fiber reinforced plastic ventilation duct) is a new generation of environmental protection and energy saving duct that replaces iron duct and glass fiber duct. The product is composed of two layers of high-strength inorganic material and a layer of thermal insulation material, and uses adhesive technology and special structural combination and connection.
Composite ducts are made from a variety of mixed materials, including
The plate is produced by mechanization, and the surface is smooth and flat, which improves the efficiency of air transportation. The air leakage rate is only 10% of the iron duct. No matter it is harmful to the environment, no rust, no mold, no dust, no glass fiber dust and fiber, no odor during production, production, installation or use. Low thermal conductivity , Excellent thermal insulation performance; good sound insulation and sound absorption performance, no noise generated when the iron duct shrinks and expands. Non-combustible, anti-bend, pressure-resistant, fast construction, low cost, long service life up to 20 years.
First, the surface air, large air volume, no blowing feeling. The system adopts the unique surface-type air outlet mode in which the fiber of the entire pipe wall penetrates the air and the microporous jet.
Second, the overall supply air is evenly distributed. The South system sends out air through the fiber gaps in the entire pipe wall or evenly distributed designed rows of small holes, and the air is distributed uniformly at each point to achieve a truly ideal overall uniform air supply.
Three; anti-condensation. The South system penetrates the cold air through the fiber of the entire pipe wall, and forms a cold air layer outside the pipe wall, so that there is almost no temperature difference between the inside and the outside of the pipe wall, which completely solves the problem of condensation and does not require pipe insulation.
Four; easy to clean and maintain, healthy and environmentally friendly. Because the South system is easy to disassemble and install, it can be easily wiped and cleaned to improve the cleanliness of indoor air and meet higher requirements for health and environmental protection.
Five; beautiful and high-end, diverse colors, outstanding personality. A variety of colors can keep harmony with any environment style in the room, simple and upscale. At the same time, the system and color are completely personalized and customized.
Six; Light weight, negligible roof load. The South system is made of special fibers and is extremely light. It is about 1/40 of the traditional metal wind system. It is especially suitable for places with no load-bearing capacity on the roof.
7. The system runs quietly and improves the quality of the environment (the Sox system is soft in material and the wind speed is low during operation, it will not generate and transmit resonance, and it will improve the quality of the environment).
Eight; simple installation, shortening the engineering cycle. The South system adopts a special supporting steel rope or aluminum rail suspension device system, which is simple and fast, and the installation time is often more than 1/10 of the traditional system, which greatly shortens the engineering cycle. Nine; flexible installation and reusable. The whole system is made of soft materials, and no trimming or calibration is required during installation. When in use, it will not be as easy to be scratched, pitted, and leaked as the metal pipe system, and the system suspension device is flexible to move, easy to install, and reusable. It is best in various places where temporary ventilation is required. select.
Ten; system costs are comprehensively saved and cost-effective. South's system design is simpler than the traditional air supply system, and replaces traditional air supply pipes, dampers, diffusers, tuyeres and other single components, accessories, and thermal insulation materials, single products, extremely light weight, easy transportation and installation, and comprehensive savings Total system cost.
Advantages of composite duct
Suitable for a variety of spaces, such as commercial places, stadiums, electronics, food factory production places, supermarkets and other business places, can be directly connected to fan equipment outlets, can also be connected to iron ducts, composite ducts, while the South system is 100% customized , It is entirely possible to arrange the air supply system according to the actual situation of the air supply site.
Material requirements
6.1.1 The phenolic aluminum foil composite air duct plate shall meet the relevant technical parameters, see Table 6.1.1.
Table 6.1.1 Related technical parameters of phenolic aluminum foil composite air pipe sheet
project | Test value | Remark | project | Test value | Remark |
density | 45-70Kg / M | | Average flue gas temperature | 90 | GB / T8625-88 |
Compressive strength | 448KPa | GB8813-1988 | Safety performance | Reach A Level | GB8624-1997 |
Water absorption | 3.7% | GB8810-1988 | Smoke density level | 2 (technical index 15) | GB / T8627-1999 |
Dimensional stability | 0.66% | GB8811-1988 | Smoke poison (Lco) mg / L | Meet the requirements | GA132-1996 |
Thermal Conductivity | 0.028w / (mK) | GB / T10294-1988 | - | - | - |
6.1.2 The burning performance of PVC connectors shall reach the level of flame-resistant B1.
6.1.3 The various steels and accessories used for making hangers shall be treated with anticorrosion and rust.
Construction equipment
The main construction equipment is shown in Table 6.3.
Table 6.3 Main construction equipment
Main equipment | Quantity | Remark |
Planer | Two double planers, two single planers Straight knife | Double knife planer and single knife planer are mainly used to cut V -shaped notches, and straight knife planers are used to cut boards. |
Aluminum square ruler | Two | It is used to mark the board to ensure the accuracy of the blanking. |
Aluminum square steel square | Two | It is used to mark the board to ensure the accuracy of the blanking. |
Bending machine | One | When used to process special pipe sections such as elbows or tees, it is used to make the curved side. |
Plastic scraper | Two | It is used to flatten the pasted aluminum foil tape to make the appearance of the duct more perfect. |
Telescopic compass | Two | - |
Aluminum alloy cutting machine | One | - |
Abrasive cutting machines | One | - |
