Composite air duct with inner layer of steel surface and manufacturing method thereof
A composite air duct and manufacturing method technology, applied in the direction of pipes, rigid pipes, pipeline protection, etc., can solve the problems of the overall rigidity and strength of the air ducts, the easy weathering and aging of the glass glue, the shortening of the service life of the air ducts, etc. The effect of internal overall strength and wind pressure bearing capacity, overall performance improvement, and long service life
Active Publication Date: 2018-02-23
JIANGYIN WEILAN ENVIRONMENTAL MACHINERY TECH
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Problems solved by technology
[0004] 2. Due to the use of glass glue for sealing, after long-term operation, the glass glue is easy to weather and age
[0005] 3. Since the inner steel surface has been cut off, the overall rigidity and strength of the air duct have been significantly reduced
[0006] 4. Due to the limited adhesive force of the glue, it is easy to fail after long-term operation, and the service life of the air duct is shortened
Method used
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[0033] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.
[0034] Any feature disclosed in this specification, unless specifically stated, can be replaced by other alternative features that are equivalent or have similar purposes. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.
[0035] Such as image 3 and Figure 4 Shown is a preferred embodiment of the present invention, that is, a composite air duct whose inner layer is a steel surface. In this embodiment, the composite air duct to be opened is a 90° V-shaped groove. The composite air duct is made of a plate whose inner layer is a steel surface, and the composite air duct includes an inner steel surface 1, a middle insulation layer 2 and an outer layer 3. On each inner side of the composite air duct, each phase Between ...
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Abstract
The invention discloses a composite wind pipe with a steel surface inner layer and a manufacture method thereof. The composite wind pipe is manufactured by using a plate material of which the inner layer is a steel surface. A plurality of groove lines are arranged on the inner-layer steel surface of the composite wind pipe, and the inner-layer steel surface is cut into multiple sections of steel surfaces at the parts of the groove lines. A V-shaped groove is formed in each groove line position of a middle heat preservation layer. The plate material is joined together at the parts of the V-shaped grooves, the V-shaped grooves are filled with glue layers, and the overlapped parts of the adjacent sections of steel surfaces are fastened through being riveted by pulling rivets. The composite wind pipe has the advantages of being high in integral strength, strong in wind pressure bearing capability, great in seal performance, long in service life and the like. The manufacture method of the composite wind pipe is no complicated, is strong in feasibility and is convenient to popularize.
Description
technical field [0001] The invention belongs to the field of composite air duct production for air supply, return and exhaust systems of HVAC, and in particular relates to a composite air duct whose inner layer is a steel surface and a preparation method thereof. Background technique [0002] At present, the composite air ducts of various new composite materials for the supply, return and exhaust systems of HVAC have been widely used in the air-conditioning duct systems of large urban buildings such as textiles, chemical fibers, automobiles, electronics, medical purification air conditioners, and subways. Such as figure 1 and figure 2 As shown, the processing method of the existing composite air duct with the inner layer of steel surface is to use a special 90° V-shaped cutter to slot the inner layer, brush the special glue on the slotted surface and then close it to shape, and then make the four inner corners Apply glass glue for sealing, and finally install special flan...
Claims
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IPC IPC(8): F16L9/17F16L59/14
CPCF16L9/003F16L9/17F16L59/14
Inventor 陈云辉
Owner JIANGYIN WEILAN ENVIRONMENTAL MACHINERY TECH