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Expansion joint for bidirectional compensation

A bidirectional compensation and expansion joint technology, applied in the field of expansion joints, can solve problems affecting installation stability, radial compensation limitation, installation surface misalignment, etc., and achieve the effects of prolonging service life, improving stability, and ensuring stability

Inactive Publication Date: 2017-08-29
YANGZHONG FIRST BUTTERFLY VALVE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the bellows expansion joints currently used are mainly used for compensation in the axial direction, and the compensation in the radial direction is limited, which may easily cause dislocation of the installation surface and affect the installation stability.

Method used

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  • Expansion joint for bidirectional compensation
  • Expansion joint for bidirectional compensation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Such as figure 1 with figure 2 As shown, a two-way compensation expansion joint includes a first bellows 1, a second bellows 2, a third bellows 3, a guide tube 4, a first support platform 5, a second support platform 6, a first axial The connecting column 7, the second axial connecting column 8, the radial connecting column 9 and the flange 10; the outside of the guide pipe 4 is provided with the first bellows 1, the first supporting platform 5, the second bellows 2, the second The supporting platform 6 and the third bellows 3; the two ends of the guide pipe 4 are provided with flanges 10; the two ends of the first axial connecting column 7 are respectively connected to the flanges 10; Between the first support platform 5 and the second support platform 6 and between the second support platform 6 and the flange 10, there are respectively provided second axial connection columns 8; the second axial connection columns 8 adjacent to the outside of the same bellows sectio...

Embodiment 2

[0019] Such as figure 1 with figure 2 As shown, a two-way compensation expansion joint includes a first bellows 1, a second bellows 2, a third bellows 3, a guide tube 4, a first support platform 5, a second support platform 6, a first axial The connecting column 7, the second axial connecting column 8, the radial connecting column 9 and the flange 10; the outside of the guide pipe 4 is provided with the first bellows 1, the first supporting platform 5, the second bellows 2, the second The supporting platform 6 and the third bellows 3; the two ends of the guide pipe 4 are provided with flanges 10; the two ends of the first axial connecting column 7 are respectively connected to the flanges 10; Between the first support platform 5 and the second support platform 6 and between the second support platform 6 and the flange 10, there are respectively provided second axial connection columns 8; the second axial connection columns 8 adjacent to the outside of the same bellows sectio...

Embodiment 3

[0021] Such as figure 1 with figure 2 As shown, a two-way compensation expansion joint includes a first bellows 1, a second bellows 2, a third bellows 3, a guide tube 4, a first support platform 5, a second support platform 6, a first axial The connecting column 7, the second axial connecting column 8, the radial connecting column 9 and the flange 10; the outside of the guide pipe 4 is provided with the first bellows 1, the first supporting platform 5, the second bellows 2, the second The supporting platform 6 and the third bellows 3; the two ends of the guide pipe 4 are provided with flanges 10; the two ends of the first axial connecting column 7 are respectively connected to the flanges 10; Between the first support platform 5 and the second support platform 6 and between the second support platform 6 and the flange 10, there are respectively provided second axial connecting columns 8; the second axial connecting columns 8 adjacent to the outside of the same bellows sectio...

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PUM

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Abstract

The invention discloses an expansion joint for bidirectional compensation. The expansion joint for bidirectional compensation comprises a first corrugated pipe (1), a second corrugated pipe (2), a third corrugated pipe (3), a flow guide pipe (4), a first support platform (5), a second support platform (6), a first axial connection column (7), a second axial connection column (8), a radial connection column (9) and a flange (10), wherein the first corrugated pipe (1), the first support platform (5), the second corrugated pipe (2), the second support platform (6) and the third corrugated pipe (3) are sequentially arranged outside the flow guide pipe (4). According to the expansion joint for bidirectional compensation, a deformation effect is improved through the three corrugated pipes in the axial direction, and axial length compensation for a pipeline is realized through the combined axial stretching action of the three corrugated pipes; and meanwhile, radial compensation is realized through the combined action of the radial connection column and the second axial connection column, so that the stability of an end-part installation surface of the expansion joint is improved, a compensation effect is guaranteed, and the service life is prolonged.

Description

technical field [0001] The invention relates to a two-way compensating expansion joint, and specifically belongs to the technical field of expansion joints. Background technique [0002] The expansion joint is a flexible structure arranged on the container shell or pipeline to compensate for the additional stress caused by temperature difference and mechanical vibration. As an elastic compensating element that can expand freely, it has the advantages of reliable operation, good performance, and compact structure, and has been widely used in chemical industry, metallurgy, nuclear energy and other departments. Bellows expansion joint is an expansion joint made of metal bellows, which can expand and contract along the axis of the pipeline, and can compensate the deformation of the pipeline caused by temperature difference or mechanical vibration. However, the bellows expansion joints currently used are mainly used for axial length compensation, and the radial compensation is l...

Claims

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Application Information

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IPC IPC(8): F16L51/03
CPCF16L51/03
Inventor 许瑞华
Owner YANGZHONG FIRST BUTTERFLY VALVE FACTORY