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Expansion joint structure with displacement equipartition and damping effects

A technology of shock absorption and expansion joints, applied in the field of expansion joints, can solve the problems of affecting the service life of products, coking and cracking of inner linings, uneven distribution of displacement of expansion joints, etc., and achieve the effect of facilitating on-site monitoring and solving cracking

Pending Publication Date: 2021-09-07
CHENGUANGDONGLUO BELLOWS CO LTD NANJING
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Problems solved by technology

However, in the course of daily operation, it is found that the single-type products in long straight pipelines are connected in series, and the adjacent expansion joints are likely to cause uneven displacement distribution, which affects the service life of the product, and coking and cracking of the lining in specific pipelines have a great impact on the expansion joints. Adverse effects on safe operation

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  • Expansion joint structure with displacement equipartition and damping effects
  • Expansion joint structure with displacement equipartition and damping effects
  • Expansion joint structure with displacement equipartition and damping effects

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Embodiment Construction

[0018] 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.

[0019] refer to figure 1 , figure 2 , image 3 and Figure 4 , the present invention provides an expansion joint structure with equal displacement and shock absorption, including 2 outer connecting pipes 1, 2 bellows 3, intermediate connecting pipe 2 and connecting rod structure 4, the two ends of the intermediate connecting pipe 2 are respectively connected to 1 two bellows 3, the other ends of the two bellows 3 are respectively connected with one outer connecting pipe 1, and the connecting rod structure 4 includes four short connecting rods 401, two long connecting rods 402, a connecting rod ...

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Abstract

The invention relates to the technical field of expansion joints, in particular to an expansion joint structure with displacement equipartition and damping effects. The expansion joint structure comprises two outer side connecting pipes, two corrugated pipes, a middle connecting pipe and a connecting rod structure, the two ends of the middle connecting pipe are respectively connected with one corrugated pipe, and the other ends of the two corrugated pipes are respectively connected with one outer side connecting pipe; the connecting rod structure comprises four short connecting rods, two long connecting rods, a connecting rod frame and two U-shaped hinge plates, the connecting rod frame is fixed to the middle of the middle connecting pipe, the two U-shaped hinge plates are rotatably connected to the two outer side connecting pipes respectively, the middles of the two long connecting rods are rotatably connected with the connecting rod frame through first pin shafts, the ends of the two long connecting rods are rotatably connected with the short connecting rods respectively, and the other ends of the two short connecting rods on the same side are rotatably connected with the U-shaped hinge plates on the same side through pin shafts. The problems of structure flexible connection, displacement distribution and the like are solved, a displacement value can be displayed in real time, and on-site monitoring is facilitated.

Description

technical field [0001] The invention relates to the technical field of expansion joints, and specifically provides an expansion joint structure with equal displacement and damping functions. Background technique [0002] In order to meet the operation requirements of the new type of large-scale petrochemical PDH plant high-temperature pipelines, a large number of expansion joints are used in the pipelines, and the expansion joints generally have the problem of large displacement. Currently, most products use single-type products in series to compensate for displacement. The performance of the product at high temperature, the product adopts the method of internal temperature insulation. However, in the course of daily operation, it is found that in long straight pipelines, single-type products are connected in series, and the adjacent expansion joints are likely to cause uneven displacement distribution, which affects the service life of the product, and coking and cracking o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L51/03F17D5/00
CPCF16L51/03F17D5/00
Inventor 牛玉华王旭潘兹兵秦海鹏
Owner CHENGUANGDONGLUO BELLOWS CO LTD NANJING
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