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Steel surface type composite air duct and manufacturing method thereof

A technology of composite air duct and manufacturing method, which is applied in the directions of heating method, pipeline protection, and protection of pipeline through heat insulation, etc. High strength and good thermal insulation effect

Inactive Publication Date: 2008-12-24
厦门高特高新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a combination of the advantages of traditional galvanized iron sheet air ducts and composite air ducts, both anti-collision The outer surface layer, and the steel surface composite air duct with an inner insulation layer with good thermal insulation effect and its manufacturing method
The connection between the two sections of steel surface composite air duct is connected by PVC flange or aluminum alloy flange

Method used

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  • Steel surface type composite air duct and manufacturing method thereof
  • Steel surface type composite air duct and manufacturing method thereof
  • Steel surface type composite air duct and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0048] see figure 1, the preparation of the steel-faced composite air duct plate is to pass the steel-faced surface layer 1 and the inner protective layer 3 through gluing and roller rolling respectively, then the moisture in the glue is basically evaporated through an oven, and then the intermediate foam The insulation layer 2 is placed between the steel-faced surface layer and the inner protective layer, and then pressed and bonded together by the pair of rollers of the compound machine.

[0049] The specific method of pipe segment division and cutting is as follows:

[0050] 1) When the corners are at right angles, accurately calculate the size and specification of the air duct, segment and mark the inner layer of the steel-faced composite air duct plate, and according to the width of the steel-faced composite air duct plate and the prefabricated air duct The length of the two opposite sides can be divided into 4 kinds of scribe cutting methods. figure 2 A schematic diag...

Embodiment 2

[0064] The manufacturing process of the curved pipe section of the steel surface composite air duct. The production process of pipe segment division and cutting is: use a bending machine to press the required bending place on the inner layer of the steel-faced composite air duct plate, so that the plate has a "V"-shaped groove 10, which has bendability. The pressing depth should not exceed 5mm. If the depth is too large, the plate is easy to break; if the depth is too small, it is not suitable for bending. The bending length of the sheet depends on the bending arc length of the duct. All the other structures and techniques are the same as in Example 1. Such as Figure 9 and 10 shown.

Embodiment 3

[0066] Manufacture process of 90° elbow of steel surface composite air duct. The manufacturing process of dividing and cutting is as follows: 1) cutting the left and right air duct plates 15 with a certain arc shape, the specific cutting is the same as in embodiment 1. 2) cutting the upper and lower air duct plates 16, the specific cutting is the same as in embodiment 2. All the other techniques are with embodiment 1, as Figure 14 shown.

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Abstract

The invention relates to a steel face type composite wind pipe and a manufacturing method thereof, which relates to a wind pipe, in particular to a steel face type composite wind pipe used for building ventilation and an air-conditioning system, and the manufacturing method thereof. The invention provides the steel face type composite wind pipe and the manufacturing method thereof that combine the advantages of the traditional galvanized iron sheet wind pipe and the composite wind pipe, not only have an anti-collision external surface layer, but also have an internal heat insulating layer with good heat preservation effect. The composite wind pipe is provided with a steel face type surface layer, an intermediate foam heat insulating layer and an internal protecting layer which are all bonded by glue. The manufacturing method comprises the following steps: first, a steel face type composite wind pipe plate is prepared, treated with pipe section division and cutting according to the requirements of the size specification, then bonded for molding after pipe section division and cutting, and connected, sealed and blocked.

Description

technical field [0001] The invention relates to an air duct, in particular to a steel surface composite air duct used in building ventilation and air conditioning systems and a manufacturing method thereof. Background technique [0002] Galvanized iron sheet air duct is one of the earliest used air duct pipes. Its structure is to use galvanized sheet to process into pipes, and then wrap glass wool or rock wool and other insulating materials on the outside. Its disadvantages are poor thermal insulation performance, heavy galvanized iron sheet, time-consuming and material-intensive processing, difficult installation, poor outer surface strength, and easy damage; in addition, it is easy to cause a large area of ​​insulation layer to fall off, and the glass fiber in the fiber structure of the insulation layer If it falls off, the air duct is easy to rust and breed bacteria. [0003] Inorganic FRP air duct is an air duct pipe developed in the past ten years. Its structure adopts...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L59/02
CPCF24F13/0209F24F13/0263F24F13/0272F24F13/0281
Inventor 韩莉林智烽
Owner 厦门高特高新材料有限公司
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