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Spherical-shell-type universal angle expansion joint

A technology of expansion joints and spherical shells, applied in the field of universal angle expansion joints and spherical shell type universal angle expansion joints, can solve the problems of easy leakage and replacement of spherical packing seals, inconvenient maintenance, etc., and achieve good pressure-bearing sealing, The effect of compact structure and wide range of applications

Active Publication Date: 2013-06-12
AEROSUN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two structures have the disadvantages that the spherical packing seal is easy to leak, needs to be replaced frequently during use, and is inconvenient to maintain.

Method used

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  • Spherical-shell-type universal angle expansion joint
  • Spherical-shell-type universal angle expansion joint
  • Spherical-shell-type universal angle expansion joint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The spherical shell type universal angular expansion joint of this embodiment is as follows figure 1 , image 3 As shown, it is a structure in which the spherical hinge is wrapped outside the bellows, wherein the first connecting pipe 1 and the second connecting pipe 2 which are connected to each other are connected to each other through the guide tube 8 of the inner lining. The outer circles of the first connecting pipe 1 and the second connecting pipe 2 are respectively radially welded to extend a first annular vertical plate and a second annular vertical plate reinforced by reinforcing ribs. The first annular upright plate and the second annular upright plate extend out of the first outer tube and the second outer tube respectively relative to the axial direction. The first connecting pipe 1 and the second connecting pipe 2 are connected through the corrugated pipe 3, and the first outer pipe and the second outer pipe are respectively fixed with the hollow sphere 4 ...

Embodiment 2

[0031] The spherical shell type universal angular expansion joint of this embodiment is as follows figure 2 , Figure 4 As shown, it is a structure in which the corrugated pipe is wrapped outside the spherical hinge. The main difference from the first embodiment is that the first outer pipe and the second outer pipe are connected through the corrugated pipe, and the first connecting pipe 1 and the second connecting pipe 2 are respectively It is fixedly connected with the hollow sphere 4 and the spherical shell 5 which are assembled to form the spherical hinge structure (the second pipe 2 in this embodiment is fixedly connected with the spherical shell 5 through the second outer tube, and can also be directly connected with the spherical shell 5).

[0032] During operation, the first connecting pipe 1 and the second connecting pipe 2 are respectively connected to the on-site pipeline. While the spherical shell type universal angular expansion joint transports the pipeline medi...

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Abstract

The invention relates to a spherical-shell-type universal angle expansion joint, belonging to the technical field of fluid conveying pipelines. The spherical-shell-type universal angle expansion joint comprises a first connecting pipe and a second connecting pipe which are mutually communicated, wherein the outer circles of the first connecting pipe and the second connecting pipe respectively extend out of a first ring-shaped vertical plate and a second ring-shaped vertical plate in a radial direction; the first ring-shaped vertical plate and the second ring-shaped vertical plate respectively extend out of a first outer pipe and a second outer pipe relative to an axial direction; and the first connecting pipe is connected with the second connecting pipe, and the first outer pipe is connected with the second outer pipe through corrugated pipes or through a hollow sphere and the spherical shell which are assembled to form a spherical hinge structure. The spherical-shell-type angle expansion joint has the outstanding advantages of being strong in bearing capacity in each direction, good in bearing sealing performance, reliable in safety, flexible in rotation, compact in structure and wide in application occasions.

Description

technical field [0001] The invention relates to a universal angular expansion joint, in particular to a spherical shell type universal angular expansion joint, which belongs to the technical field of fluid conveying pipelines. Background technique [0002] The universal angle expansion joint can absorb the angular displacement in any direction. The combination of two or more universal angle expansion joints can absorb the displacement in any direction of the pipeline and bear the axial pressure thrust generated by the bellows. Therefore, it has been widely used as a pipeline accessory. In the pipeline system of petrochemical, metallurgy, electric power, heating network and other industries. [0003] There are mainly two kinds of such products, one is a single-piece universal angle expansion joint similar to a cross universal joint (see GB / T12777-2008), which is mainly composed of rectangular or circular universal rings, pins, hinges, etc. constitute. The other is a stuffin...

Claims

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Application Information

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IPC IPC(8): F16L51/03F16L59/21
Inventor 蔺百锋丁泉
Owner AEROSUN CORP