Corrugated pipe expansion joint and corrugated pipe

A bellows and expansion joint technology, applied in the field of bellows expansion joints and their bellows, can solve the problems of inconvenience, damage, instability of the bellows, etc., and achieve the effects of being convenient to use, avoiding damage, and avoiding damage to end pipes

Active Publication Date: 2020-11-27
ZHEJIANG YUEDING CORRUGATED TUBE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing metal bellows expansion joints for pipelines mostly use bellows made of austenitic stainless steel to withstand greater working pressure; The sewage is diverted to various small mud storage tanks. During the diversion process, due to the stress on the bellows during work, the bellows will be unstable or damaged, which greatly reduces the service life and work effi

Method used

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  • Corrugated pipe expansion joint and corrugated pipe
  • Corrugated pipe expansion joint and corrugated pipe
  • Corrugated pipe expansion joint and corrugated pipe

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0035] Example 1:

[0036] Reference Figure 1-10 , A bellows expansion joint, comprising an end pipe 1. The outer walls of both sides of the end pipe 1 are respectively provided with a first flange 101 and a second flange 102, and the middle outer wall of the end pipe 1 is sleeved with two annular plates 2. A bellows body 103 is sleeved between the first flange 101 and the annular plate 2 and the second flange 102 and the annular plate 2, and the outer wall of the end pipe 1 is also provided with a corrugated pipe body 103 Airbag 603;

[0037] Both the first flange 101 and the second flange 102 are fixedly connected with a first support ear 104, and the outer walls of the two annular plates 2 are both connected with a second support ear 201 corresponding to the position of the first support ear 104, A first threaded rod 3 is connected to the first support ear 104, a second threaded rod 4 is connected to the second support ear 201, a limit rod 404 is also provided on the first thr...

Example Embodiment

[0046] Example 2:

[0047] Reference Figure 1-9 , A bellows expansion joint, comprising an end pipe 1. The outer walls of both sides of the end pipe 1 are respectively provided with a first flange 101 and a second flange 102, and the middle outer wall of the end pipe 1 is connected with two annular plates 2 , The bellows body 103 is connected between the first flange 101 and the annular plate 2 and the second flange 102 and the annular plate 2;

[0048] Both the first flange 101 and the second flange 102 are fixedly connected with a first support ear 104, and the outer walls of the two annular plates 2 are both connected with a second support ear 201 corresponding to the position of the first support ear 104, A first threaded rod 3 is connected to the first support ear 104, a second threaded rod 4 is connected to the second support ear 201, a limit rod 404 is also provided on the first threaded rod 3, and the limit rod 404 is slidably connected to the second Threaded rod 4;

[00...

Example Embodiment

[0052] Example 3:

[0053] Reference Figure 1-9 , A bellows expansion joint, basically the same as the first embodiment, furthermore, the first support ear 104 and the second support ear 201 are both provided with three sets, and the three sets of the first support ear 104 and the second support ear 201 Both are provided with a first threaded rod 3 and a second threaded rod 4 respectively. By arranging three groups of the first threaded rod 3 and the second threaded rod 4, the force can be more evenly distributed, and the three groups can be provided with triangular stability It also saves materials and space.

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Abstract

The invention relates to the field of corrugated pipes, in particular to a corrugated pipe expansion joint and a corrugated pipe. The corrugated pipe expansion joint comprises an end pipe, a first flange plate and a second flange plate are arranged on the outer walls of the two sides of the end pipe correspondingly, two annular plates are connected to the outer wall of the middle of the end pipe,corrugated pipe bodies are connected between the first flange plate and the annular plates as well as between the second flange plate and the annular plates correspondingly, and air bags matched withthe corrugated pipe bodies are further arranged on the outer wall of the end pipe; a first threaded rod is connected to a first supporting lug, a second threaded rod is connected to a second supporting lug, a limiting rod is further arranged on the first threaded rod, and the limiting rod is slidably connected to the second threaded rod; and a second spring is arranged between a first rotary knoband a second rotary knob, and fixing assemblies are arranged on the first rotary knob and the second rotary knob correspondingly. The corrugated pipe expansion joint can be suitable for the corrugatedpipes with different lengths, has the certain buffer effect, can avoid instability or damage of the corrugated pipes under force bearing, and is more convenient to use.

Description

technical field [0001] The invention relates to the field of bellows, in particular to a bellows expansion joint and the bellows. Background technique [0002] At present, bellows expansion joints are widely used in metallurgical blast furnace gas delivery systems, coke oven gas delivery systems and converter gas delivery systems to compensate for the displacement of bellows caused by thermal expansion and contraction of pipelines or equipment due to the influence of temperature, ensuring that the system Working safely and reliably, the bellows expansion joint is the compensator of the conveying pipeline, and the bellows is the compensating element of the expansion joint. [0003] The existing metal bellows expansion joints for pipelines mostly use bellows made of austenitic stainless steel to withstand greater working pressure; The sewage is diverted to various small mud storage tanks. During the diversion process, due to the stress on the bellows during work, the bellows ...

Claims

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Application Information

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IPC IPC(8): F16L51/02F16L55/02F16L23/00
CPCF16L23/006F16L51/022F16L55/02
Inventor 梁艳艳
Owner ZHEJIANG YUEDING CORRUGATED TUBE
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