Sandwich construction fiber reinforced elastic body pipe compensator and forming method thereof

A pipeline compensator and fiber-reinforced technology, which is applied in expansion compensation devices for pipelines, pipe components, pipes/pipe joints/fittings, etc., can solve the problems of reduced high temperature resistance, environmental hazards, and the actual life of solid particles is lower than the design Value and other issues, to achieve the effect of improved fatigue life and resistance to solid particle wear

Inactive Publication Date: 2005-01-26
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The in-service life of the elastomer pipeline compensator reinforced by a mixture of glass fiber and temperature-resistant organic fiber can be improved to a certain extent, but the high temperature resistance of the material is greatly reduced and the manufacturing cost is significantly increased, which hinders the widening of the use of this type of compensation element
Therefore, asbestos pipeline compensators are still widely used in many working conditions, causing harm to the environment
At present, no matter whether the reinforcing base is asbestos fiber or glass fiber, when the existing fiber-reinforced elastomer pipeline compensator products are used in dusty gas pipelines, their actual life is lower than the design value due to the wear of solid particles

Method used

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  • Sandwich construction fiber reinforced elastic body pipe compensator and forming method thereof
  • Sandwich construction fiber reinforced elastic body pipe compensator and forming method thereof
  • Sandwich construction fiber reinforced elastic body pipe compensator and forming method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: The working medium of the compensator is flue gas, its inner diameter is 430mm×1980mm, the axial installation length is 400mm, the compensation amount is ≤10mm; the design pressure P≤1000Pa, and the temperature t≤150°C. See figure 1 , The multi-layer structure fiber-reinforced elastomer pipeline compensator of this embodiment is installed by two flanges 2 fixedly connected to the two ends of the compensation pipe section 1, and one end of the two flanges 2 The diversion sleeve 3 in the compensation pipe section 1 is formed. The pipe wall structure of the compensation pipe section 1 is: the outer layer is a fiber reinforced elastomer composite material (FEC), and the specific form of the material is a fiber cloth reinforced by a mixture of non-asbestos fiber and steel wire. Rubber; the second layer is an anti-corrosion layer made of polytetrafluoroethylene (PTFE) varnished cloth; the third layer is an insulating layer made of block glass wool or ceramic wool wrap...

Embodiment 2

[0034] Example 2: see figure 2 This embodiment is basically the same as the above embodiment, the difference is that the compensation tube section 1 is a circular tube, the manufacturing process of this embodiment is basically the same as the above embodiment, and the multilayer structure composite material is also basically the same, see Figure 6 . The working medium of the compensator of this embodiment is flue gas, the inner diameter is 2200mm, the axial installation length is 400mm, the compensation amount is ≤10mm, the design pressure P≤1000Pa, and the temperature t≤300°C.

[0035] In the multi-layer fiber reinforced rubber composite material, the rubber is fluorine rubber, and the reinforcement is a woven cloth of glass fiber and stainless steel wire (10% by volume). The fiber-reinforced fluororubber composite material is prepared according to the traditional process. The formula and vulcanization conditions of fluorine rubber are shown in Table 2:

[0036] Table...

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Abstract

Belonging to field of composite material technics, the invention relates to fibre with multi-layer structure enhanced elastomer pipeline compensator. The compensator is made up with compensate pipeline, two flanges fixedly connected with the compensate pipeline and a diversion knot fixedly connected with one of the two flanges and installed in compensate pipeline. Tube wall's structure is as follows: outer layer is fibre enhanced elastomer composite material (FEC) whose concrete form is fibre cloth enhanced latex mixedly weaved by non-asbestos fibre and steel wire; the second layer is anti corrosive coating wax cloth made by polytetrafluoroethylene (PTFE); the third layer is thermal protective coating made by glass wool or refractory wool in block shape between two layers of glass fibre clothes; inter layer is dust layer made by glass fibre dilatants voile fabric braided after surface treatment. With a new structure, the pipeline compensator has an environment-friendly, high intensity.

Description

Technical field [0001] The invention relates to a multi-layer structure fiber reinforced elastomer pipe compensator and a molding method thereof, and belongs to the technical field of composite material manufacturing technology. Background technique [0002] The pipeline compensator is an indispensable accessory in the pipeline system as an accessory that compensates for the deformation of the pipeline caused by temperature changes, and plays a vital role in the safe operation of the pipeline system. There are four types of common pipeline compensators: ①The square compensator that uses ∏ continuous elbow to absorb thermal deformation; ②The sleeve compensator that uses the freely expandable sleeve to compensate for temperature difference deformation; ③The corrugation on the bellows The wave compensator that adjusts the thermal deformation of the pipeline by the elastic deformation; ④The fiber-reinforced elastomer pipeline compensator that absorbs the displacement of the pipeline ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L51/00
Inventor 胡宏玖刘红赵俊谨
Owner SHANGHAI UNIV
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