Due to various problems and changes caused by the use of traditional iron air ducts, central air conditioners have begun to be used in large spaces with fiber fabric air ducts. This combination will not only achieve the purpose of environmental protection and energy saving, but also maximize the effect of central air conditioning Play to the limit. Let's talk about the differences between the two air duct systems in use, and what are the differences in performance?

(1) Convenience of construction The

galvanized iron sheet air duct is suitable for large-scale processing and is convenient for machining, but it is inconvenient to use mechanical equipment for small sizes, so the processing cycle is long and the speed is slow. In addition, it is difficult to control the installation accuracy of the galvanized iron air duct during construction; it is not easy to make accessories such as large and small ducts; it is difficult to install and requires high requirements for construction personnel.

The installation of fiber fabric air duct is simple and does not require special processing equipment, and the construction speed of fiber fabric air duct is fast, and the requirements for construction personnel are relatively low, so choosing fiber fabric air duct can save installation time to the greatest extent.

(2) Energy-saving effect

The thermal conductivity of fiber fabric air duct is much lower than that of galvanized iron air duct, while the thermal conductivity of galvanized iron air duct (using 20mm rubber and plastic insulation material) is as high as 0.035-0.043W/(mK) , and when the insulation material of the galvanized iron duct is in contact with the air for a long time, it will also absorb moisture, which greatly increases the thermal conductivity of the galvanized iron duct.

The fiber fabric air duct does not require any insulation material, and the position of the ventilation opening is very flexible and accurately calculated, which can make the utilization rate of the fan reach more than 90%, and the energy-saving effect is the best.

(3) Fireproof performance

Galvanized iron sheet is an inorganic material with good fireproof performance and is non-combustible Class A, but its exterior is often made of rubber and plastic insulation materials. The fire rating of the galvanized iron duct is greatly reduced.

The fiber fabric wind pipe has passed the authoritative inspection as a B1-class permanent fire-resistant flame-retardant material, and its fire-proof safety performance has been greatly improved.

(4) Effect on floor height

The outside of the galvanized iron air duct needs to be wrapped with a layer of insulation layer on site, and the insulation layer often needs to be replaced during maintenance. Therefore, in addition to the height of the air duct itself, a certain amount of space must be reserved. Installation and maintenance space.

The fiber fabric air duct itself has thermal insulation effect and can be installed close to the roof without reserving installation space. The actual measurement shows that the use of fiber fabric air ducts can save about 5-10cm in floor height than the use of galvanized iron air ducts.

(5) Service life

Galvanized iron sheet is easy to rust in a humid environment, and glass fiber, another insulation material commonly used for galvanized iron sheet air ducts, tends to become brittle after absorbing moisture, so the service life of galvanized iron sheet air ducts is only about 5 to 10 years. . The service life of fiber fabric air duct is as long as 20 years. From this point of view, the fiber fabric air duct is far stronger than the galvanized iron air duct.

(6) Noise reduction performance

The galvanized iron duct is a rigid duct with no noise reduction effect, and it even transmits the noise of the equipment to the working place, so it is necessary to add noise reduction covers and noise reduction elbows. Acoustic accessories. In addition, when the galvanized iron duct suddenly encounters cold or hot wind, due to thermal expansion and contraction, it will also produce stress deformation, resulting in the annoying sound of "嘎, 嘎". The fiber fabric air duct itself is soft in texture and has good noise reduction performance, so it is a good tube type muffler in itself, and no noise reduction treatment is required, which can reduce a lot of trouble.

(7) Sanitation and health

Galvanized iron air ducts are prone to rust, cold bridges, and condensation. Therefore, it is very easy to breed bacteria in galvanized iron air ducts, such as Legionnaires' bacteria, which will cause secondary pollution to the air supply air. . In addition, glass fiber, a commonly used thermal insulation material for galvanized iron ducts, is also harmful to human health. The fiber fabric air duct is not easy to produce condensed water when blowing air, which well avoids the production and spread of bacteria. Therefore, from the perspective of hygiene and health, fiber fabric ducts are far better than galvanized iron ducts.

In the above analysis, it is concluded that the performance and use of fiber fabric air ducts in actual application conditions are far stronger than those of galvanized iron sheet air ducts. Therefore, the combination of fiber fabric air ducts in the use of central air conditioning air ducts can make a breakthrough The various limitations and inconveniences of traditional air ducts are worthy of our application and promotion in various industries.