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Composite blast pipe construction method

A composite air duct and construction method technology, applied in the direction of pipes, rigid pipes, heating methods, etc., can solve the problems of low strength, short service life of air ducts, easy to be scratched on the surface, etc., and achieve high strength, beautiful appearance and heat preservation effect Good results

Active Publication Date: 2014-02-26
CHINA CONSTR EIGHT ENG DIV CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an anti-collision outer surface layer and a good thermal insulation effect in view of the problems of the existing composite air ducts such as low strength, easy bruising on the surface, and short service life of the air duct. Construction Method of Composite Air Duct for Inner Insulation Layer

Method used

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Embodiment Construction

[0038] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0039] The construction method of the composite air duct provided by the invention comprises the following steps:

[0040] 1) Preparation of composite air duct plates;

[0041] Cooperate with reference figure 1 As shown, the composite air duct plate 10 includes an outer color steel plate 110, an inner color steel plate 120, and a phenolic plate 130 sandwiched between the outer color steel plate 110 and the inner color steel plate 120; The thickness of the steel plate 110 and the inner color steel plate 120 is preferably 0.35mm, and the thickness of the phenolic plate is preferably 30mm.

[0042]...

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Abstract

The invention discloses a composite blast pipe construction method including the following steps of 1) producing plates for making composite blast pipes, 2) dividing and cutting the plates for making the composite blast pipes according to requirements of molding dimensions, 3) bonding the parts of the divided and cut plates for making the composite blast pipes to form the composite blast pipes, and 4) connecting and lifting the composite blast pipes formed by means of bonding and connecting. The plates for making the composite blast pipes include outer colored steel plates, inner colored steel plates and phenolic aldehyde plates sandwiched between the outer colored steel plates and the inner colored steel plates. In the step of connecting the plates for making the composite blast pipes, the joints of the outer colored steel plates are turned and wrapped and fixedly connected by rivets, the joints of the phenolic aldehyde plates are connected by means of adhesive liquid, and the joints of the inner colored steel plates are filled and sealed by solid sealant. The plates for making the composite blast pipes are produced by sandwiching the flame-retardant phenolic aldehyde plate between the double thick colored steel plates, and have the advantages of good heat insulation effect, high strength, collision resistance, simple structure, long service life and convenience in construction.

Description

technical field [0001] The invention relates to a building ventilation and air conditioning system, in particular to a construction method for a composite air duct used in the building ventilation and air conditioning system. 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. I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/147
CPCF24F13/0209
Inventor 卢育坤吴洪章封国强邹华窦彦兵闵感严伟基湛磊
Owner CHINA CONSTR EIGHT ENG DIV CORP LTD
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