Large-caliber helical bellows
A spiral corrugated pipe, large-diameter technology, applied in the direction of pipes, rigid pipes, pipes/pipe joints/pipe fittings, etc., can solve the problem of restricting the application field of steel belt reinforced polyethylene spiral corrugated pipes, ignoring the internal pressure of the pipe, and being unable to The pressure pipeline has obtained technical problems, so as to achieve the effect of improving the ring rigidity level, prolonging the service life, and enhancing the ability to withstand internal pressure
Inactive Publication Date: 2014-04-09
陆宇航 +1
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Problems solved by technology
[0005] Furthermore, because steel belt reinforced polyethylene spiral corrugated pipes are used in drainage projects, they mainly bear external pressure. Therefore, for manufacturers, the requirements for the ring stiffness of pipes are relatively strict in pipe design, and The design of the internal pressure of the pipe is often ignored, and it is impossible to make a technical breakthrough in the pressure pipe, so it also limits the application field of the steel belt reinforced polyethylene spiral corrugated pipe
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[0024] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.
[0025] figure 2 It is a structural schematic diagram of the large-diameter spiral bellows described in the present invention.
[0026] like figure 2 Shown: a large-diameter spiral corrugated pipe, including a circular inner tube 1 and an outer tube 2, and a reinforcing steel belt 3 is arranged between the circular inner tube 1 and the outer tube 2, and the reinforcing steel The belt 3 is connected to the circular inner tube 1 and the outer tube 2 through the adhesive resin layer 4, and a reinforcing rib 6 is also arranged between the arched inner wall surface of the reinforced steel belt 3 and the outer wall surface of the circular inner tube 1 . And the upper and lower ends of the reinforcing rib 6 are connected to the reinforcing steel strip 3 and the circular inner tube 1 through the adhesive resin layer 4. In this embodiment, the...
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The invention discloses a large-caliber helical bellows. The large-caliber helical bellows comprises an inner round pipe and an outer pipe, wherein a reinforcing steel belt is further arranged between the inner round pipe and the outer pipe and is connected with the inner round pipe and the outer pipe through an adhesive resin bed, a reinforcing rib is further arranged between the inner wall surface of the reinforcing steel belt and the outer wall surface of the inner round pipe, and the space formed by the reinforcing steel belt and the inner round pipe is divided into two portions through the reinforcing rib. A reinforcing layer is arranged in the inner round pipe or the outer pipe, the stiffness class of a ring of the large-caliber helical bellows is improved, and inner pressure bearing ability of the large-caliber helical bellows is enhanced; the reinforcing rib is further arranged between the inner wall surface of the reinforcing steel belt and the outer wall surface of the inner round pipe, the stiffness class is improved further, and therefore the problems that the large-caliber ring is low in rigidity and high in production cost are solved. In addition, the outer pressure bearing ability and stability of the large-caliber helical bellows are greatly enhanced, the anti-corrosion effect is good, service life is prolonged, and the application range of the large-caliber helical bellows is enlarged.
Description
technical field [0001] The invention relates to a buried pipe, in particular to a large-diameter spiral corrugated pipe, which belongs to the technical field of drainage pipes. Background technique [0002] figure 1 Reinforced polyethylene spiral corrugated pipe for steel belt, such as figure 1 As shown: it includes three-layer structure: the inner layer is a solid-wall PE inner polyethylene layer formed by extruding plastic sheets after superposition and cooling, that is, the inner layer tube 1, and the inner layer tube 1 is wound with a ring-shaped corrugated steel belt Reinforcement body 3, said ring-shaped corrugated steel belt reinforcement body 3 is formed into an inverted "U"-shaped structure by steel plate, and a polyethylene outer layer pipe 2 is compounded outside the ring-shaped corrugated steel belt reinforcement body 3, and said ring-shaped The corrugated steel belt reinforcement 3 is connected to the inner tube 1 and the outer tube 2 through an adhesive resin...
Claims
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IPC IPC(8): F16L9/16
CPCF16L9/165
Inventor 陆宇航黎世鹏刘海峰王海峰
Owner 陆宇航