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Internal pressure-deformable liner for lining of existing pipelines and method of use thereof

A technology for lining pipes and pipes, applied in the direction of pipes/pipe joints/fittings, pipe components, mechanical equipment, etc. Leakage and other problems, to achieve the effect of not easy to adhere to dirt, simple structure, and enhanced adaptability

Inactive Publication Date: 2019-06-07
上海英泰塑胶股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Steel pipes, ductile iron pipes, and plastic-metal composite pipes are currently being used more and more widely. After long-term use of the pipes, due to factors such as corrosion and aging, a large amount of dirt will accumulate and adhere to the inner walls of the pipes, and the pipes will be blocked and damaged. Repairs are required , but currently there is no convenient and reliable method for the repair of existing pipelines, which brings difficulties to a large number of existing pipelines that have reached the end of their service life or leaked.

Method used

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  • Internal pressure-deformable liner for lining of existing pipelines and method of use thereof
  • Internal pressure-deformable liner for lining of existing pipelines and method of use thereof
  • Internal pressure-deformable liner for lining of existing pipelines and method of use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] An internal pressure-deformable lining pipe used for the lining of existing pipelines, including a hollow connecting pipe 1 and a fillet 2, such as figure 1 As shown, the specific structure is:

[0041] The outer wall of the connecting pipe 1 is provided with six slots 11 with an arc-shaped cross section, and the slots 11 are evenly distributed around the central axis of the connecting pipe 1;

[0042] The fillet 2 can be wire or optical fiber, the cross-section of the fillet 2 is circular, the radius of the cross-section of the fillet 2 is not greater than the radius of curvature of the cross-section of the fillet 11, and the diameter of the fillet 2 is greater than the depth of the cross-section of the fillet 11 , a fillet 2 is embedded in each caulking groove 11, the outermost part of the outer surface of the fillet 2 is higher than the outermost part of the outer side wall of the connecting pipe 1, and the two ends of the fillet 2 protrude from the front and rear si...

Embodiment 2

[0054] An internal pressure-deformable lining pipe used for the lining of existing pipelines, including a hollow connecting pipe 1 and a fillet 2, such as figure 2 As shown, the specific structure is:

[0055] The outer wall of the connecting pipe 1 is provided with four slots 11 with an arc-shaped cross section, and the slots 11 are evenly distributed around the central axis of the connecting pipe 1;

[0056] Nylon rope or steel wire rope can be used for the fillet 2. The cross section of the fillet 2 is circular. The radius of the cross section of the fillet 2 is not greater than the radius of curvature of the cross section of the fillet 11. Depth, a fillet 2 is embedded in each insert groove 11, and the outermost part of the outer surface of the fillet 2 is figure 2 The dotted line in the circle shows that it is higher than the outermost part of the outer wall of the connecting pipe 1. The two ends of the fillet 2 protrude from the front and rear ends of the connecting p...

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Abstract

The invention relates to the field of pipe repair or hose leakage devices, in particular to an internal pressure shape change lining pipe for an existing pipeline lining and a using method thereof. The internal pressure shape change lining pipe for the existing pipeline lining comprises a hollow connecting pipe (1) and is characterized in that insertion strips (2) are further included, and the outer side wall of the connecting pipe (1) is provided with at least three caulking grooves (11) with the arc-shaped cross sections; and the insertion strips (2) are embedded into the corresponding caulking grooves (11). The using method of the internal pressure shape change lining pipe for the existing pipeline lining is characterized by including the following steps of a, cleaning; b, assembling; c, sleeving; d, drawing; e, springback; f, recovery and g, joint caulking. The internal pressure shape change lining pipe for the existing pipeline lining is simple in structure, convenient to construct and high in adaptability.

Description

technical field [0001] The invention relates to the field of devices for repairing leaks of pipes or hoses, in particular to an internal pressure-deformable inner liner used for the inner liner of existing pipelines and a method for using the same. Background technique [0002] Steel pipes, ductile iron pipes, and plastic-metal composite pipes are currently being used more and more widely. After long-term use of the pipes, due to factors such as corrosion and aging, a large amount of dirt will accumulate and adhere to the inner walls of the pipes, and the pipes will be blocked and damaged. Repairs are required , but there is no convenient and reliable method for the repair of existing pipelines at present, which brings difficulties to the recovery of a large number of existing pipelines that have reached their service life or leaked. Contents of the invention [0003] In order to overcome the defects of the prior art and provide a pipeline repair device with simple structu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L55/162
CPCF16L55/162
Inventor 林世平
Owner 上海英泰塑胶股份有限公司
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