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Application and advantages of spiral duct

Date of release:2020-07-30 Author:Yancheng Shibo Machinery Manufacturing Co., Ltd Click:

Application and advantages of spiral duct

Abstract: spiral air duct has galvanized spiral air duct, stainless steel spiral air duct, etc. Spiral duct blower is a kind of thin-walled pipe with spiral seam, which is made of metal tape. It is round, no welding, no air and water leakage. It is mainly used for air supply and bulk material transportation, instead of the traditional white iron pipe (i.e. manual seam biting iron pipe). It is a kind of air duct, full mechanism straight pipe does not need to be knocked manually. We have a general understanding of spiral air duct. What are the advantages of spiral air duct compared with other air ducts in installation? Let's have a brief understanding: (1) reduce leakage. Spiral duct tee.

Spiral air duct has galvanized spiral air duct, stainless steel spiral air duct and so on. Stainless steel spiral duct blower is a machine for producing spiral duct. Spiral air duct, also known as spiral slit thin-walled pipe, was first used in the military industry of western countries, such as warships, ship platoon (air supply) system, and later used in trains, subways, mines and other civil facilities.

We also have a general understanding of spiral air duct. What are the advantages of spiral duct compared with other air duct in installation

(1) reduce leakage to a great extent.

The installation of spiral air duct tee significantly reduces the connection points between pipes and reduces the leakage at the joint of pipe fittings to the degree of * and only one pipe connector is needed to connect two spiral air ducts, while a completely separate double flange system is often required for the connection of traditional rectangular air duct.

(2) standardized products.

The production of accessories (fittings and joints) of spiral circular air duct has been highly automated and systematized with industrialized quality control.

(3) low installation cost.

The installation time of circular duct system is only 1 / 3 of that of rectangular duct.

(4) usually only a small installation space is needed.

The circular pipe with diameter of 200 mm can replace 250 × 150 mm Rectangular pipe in the same installation space without increasing any pressure drop. The flat rectangular duct can be replaced by several parallel circular pipes without extra installation space. Taking all factors into account, in most cases, circular ducts occupy less space than rectangular ducts. For the same pressure characteristics, the installation space of several circular pipes is often the same or less than that of a rectangular pipe. Many rectangular piping systems require a 4-bolt system for installation, resulting in an increase of 40-80 mm in all directions of the pipe.

(5) pressure reduction: as we all know, the wind resistance of circular duct is much smaller than that of rectangular duct.

(6) undercut forming process: all the moulds used in the imported equipment are of special steel structure. Even if they have been used for three or five years, the surface of the pressing die remains unchanged, which makes the surface of galvanized steel plate not damaged, greatly increases the service time of air duct, and at the same time, the joint is even and smooth, the bite is tight, the connection force is strong and the sealing is good.

(7) sealing ring leak proof system.

(8) the exquisite spiral pressing rib technology makes the spiral air duct have the * strength of bearing pressure. After increasing the spiral rib, the undercut seam thickness is four times of that of the pipe body, and the pipe is very rigid, which shows the advantages of firmness. It can bear the pressure load of * without damage to deformation. The material thickness can be reduced by 15% and the cost can be reduced.

(9) for the same cross-sectional area, the circumference of rectangular air duct with the ratio of length to width of 1:3 is 40% longer than that of spiral duct, so the materials for thermal insulation can be reduced accordingly due to the short perimeter of spiral duct.

(10) the pipeline layout is beautiful and three-dimensional.


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