Composite air ducts are made from a variety of mixed materials, including phenolic, glass magnesium and other air ducts. And it replaces the new generation of environmental protection and energy-saving air ducts of iron air ducts and glass fiber air ducts. The product consists of two layers of high-strength inorganic materials and a layer of insulating material as the base material. The adhesive technology and special structural combination and connection are used. Next, Xiao Bian introduced the precautions for the installation of composite air ducts and the characteristics of polyurethane composite steel ducts.
Composite duct installation precautions
1. During the process of installing composite air ducts, it is necessary to follow the principles of standard pipeline construction. And choose professional and regular installation of public and experienced installation personnel, the use of composite duct corresponding professional installation tools, in order to maximize the installation effect of this type of pipe.
2. Care should be taken in the handling, handling and storage of composite air ducts. For the placement environment of such pipes, it must meet the requirements. Avoid the composite duct due to external or environmental factors, there is a certain degree of damage.
3, for the installation of composite ducts need to use the lifting method, so as long as the convenience of lifting, should be as much as possible to compound the pipe section of the assembly and then lift the installation.
4. If the joint of the composite duct needs to be modified in the field, the relevant staff can use a right-angled knife that meets the standards to cut along a straight edge. In this way, very straight and smooth cuts can be obtained.
5. For the relevant sealing materials used in the installation of composite air ducts, it is necessary to choose a good and correct sealing material. The pros and cons of the sealing material can be said to be critical to the durability of the composite duct installation. In addition to the selection of high-quality sealing materials, the system should be operated in accordance with the specified requirements.
Polyurethane color steel composite duct characteristics
1, beyond the insulation performance
The glass-magnesium composite air duct is directly compounded with the heat-insulating material and does not need to be insulated again, and the air duct heat transfer coefficient is small. The excellent insulation performance reduces the loss of heat conduction during the cold air transport.
2, small wind resistance, low air leakage
The glass-magnesium composite air duct adopts mechanized production, with smooth surface, smooth surface, small friction coefficient and low wind resistance. The absolute roughness of the air duct surface is 0.2mm. The air duct adopts the flangeless connection, which improves the airtightness of the air duct, reduces the air leakage rate of the air duct compared with other air ducts, and improves the efficiency of air transportation. The air leakage rate of the glass magnesium composite air duct is only that of the iron air duct. 1/10.
3, improve indoor air quality
The glass-magnesium composite duct does not rust, mold, dust, breed bacteria, fungi, odor, and does not produce particulate, gaseous pollutants and bio-aerosols, which can improve indoor air quality.
4, green products, harmless to humans
As a new type of green building materials, glass-magnesium composite air duct adopts effective environmental protection measures in terms of raw materials, process recipes, energy consumption in production processes, and emission products. Even in the event of a fire, the smoke produced is also Does not contain toxic substances, harmless to the human body. Therefore, it is an environmental protection air duct and has obtained national environmental protection certification.
5, low noise, keep the indoor environment quiet
The glass-magnesium composite air duct has good sound insulation properties. At the same time, the heat-insulating material has shock-absorbing and sound-absorbing properties, so it can reduce the turbulence of the moving air and mechanical noise, eliminate the noise generated by the shrinkage and expansion of the iron air duct, and keep the indoor environment quiet.
6, excellent fire performance
The glass-magnesium composite air duct is made of non-combustible inorganic materials and heat-insulating materials that are compounded by high-tech technology. It has been tested by the National Fireproof Building Materials Quality Supervision and Inspection Center and is Class A non-combustible material. The special glue and fittings for glass-magnesium composite air ducts are Class A non-combustible materials.
7, ultra-high strength properties
The glass-magnesium composite duct has high strength, bending strength greater than 1.8mpa, can withstand wind pressure of 2500pa, and can meet the use of high, medium and low pressure air systems.
8, excellent moisture resistance and water resistance
The glass-magnesium composite air duct is not afraid of water and does not rust or corrode under humid environment. Even when immersed in water, it can maintain high strength and its wet strength can reach as high as 97%.
9, light weight, reduce building loads
The glass-magnesium composite air duct is light in weight and 25% lighter than iron air ducts, which can effectively reduce building loads.
10, low overall cost, saving one-time investment. The performance of the glass-magnesium composite air duct is better than that of the iron air duct, and the cost is lower than that of the iron air duct, which saves customers one-time investment. Long service life, reasonable product design structure, reliable performance, stable quality, and service life of more than 25 years.
Editor's summary: The precautions on the installation of composite air ducts and the characteristics of polyurethane composite steel ducts are introduced here. I hope to be helpful to everyone. If you want to know more about yourself, you can follow the information on this site.
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