Flange type large-caliber PE pipeline under-pressure restoration structure and restoration method thereof
A repairing structure and large-diameter technology, which is applied in the direction of pipe components, pipes/pipe joints/fittings, mechanical equipment, etc., and can solve the problems of large-diameter PE pipe damage under pressure repair, etc.
Active Publication Date: 2015-08-12
TANGSHAN SANYOU CHEM IND
View PDF6 Cites 11 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The invention aims to solve the problem of pressure repair of large-diameter PE pipe damage, and provides a flange-type large-diameter PE pipe that can repair any form and any part of the PE pipe under pressure when the PE pipe is running. Repairing structure under pressure and its repairing method
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0029] The present invention will be further described below in conjunction with the accompanying drawings, but the embodiments do not constitute any limitation to the present invention.
[0030] see Figure 1-Figure 4 , the flange-type large-diameter PE pipe pressure repair structure given in this embodiment consists of two PE flanges 2, two metal loop flanges 5, two metal neck flanges 6, one It consists of a metal pipe 7 with a single corrugated metal expansion joint 8. The PE flange 2 is a split neck flange in the middle. The inner arc surface and split surface of the PE flange 2 are inlaid with electromagnetic insulation heating wires 4. Internal pre-buried temperature measuring probe 12, two PE flanges 2 are arranged on both sides of the damaged part 9 of the PE pipe 1 along the axial direction, and are fused with the PE pipe 2 through electromagnetic melting; the loop flange 5 and the necked Flange 6 is the same split structure in the middle of the axial direction, and ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a flange type large-caliber PE pipeline under-pressure restoration structure and a restoration method thereof. The flange type large-caliber PE pipeline under-pressure restoration structure comprises PE flanges provided with necks at middle subdivisions, loose flanges with middle subdivisions made of a metal material and flanges with necks, wherein electromagnetic insulation heating wires are inlayed on the inner arc surfaces and subdivision faces of the PE flanges, temperature measurement probes are embedded on the inner arc surfaces and subdivision faces of the PE flanges, the two PE flanges are respectively arranged on two sides of the damaged position of a PE pipeline and is fused with the PE pipeline through electromagnetic thermal melting to form a whole. The loose flanges are installed on the necks of the PE flanges in a sleeving mode and form a whole through the subdivision faces welded in a paired mode, the flanges with the necks are arranged on the PE pipeline in a sleeving mode and form a whole through the subdivision faces welded in a paired mode, and the flanges with the necks, the loose flanges and the PE flanges are connected through bolts in a sealed mode. The outside of the PE pipeline between two flanges with the necks is sleeved with a metal tubular product, two ends of the metal tubular product are welded with the necks of the flanges with the necks, and a sealed cavity is formed around the damaged position of the PE pipeline. By the adoption of the flange type large-caliber PE pipeline under-pressure restoration structure, any damaged position in any shape can be restored under the pressure in an operating state of the PE pipeline.
Description
technical field [0001] The invention relates to the damage repair of PE pipes in running state, in particular to a flange-type large-diameter PE pipe pressure repair structure and a repair method thereof. Background technique [0002] PE material pipes, especially large-diameter pipes, are being widely used in recent years because of their excellent corrosion resistance, high elasticity and plasticity, easy long-distance laying and long service life. Due to reasons such as manufacturing, installation and force majeure, the pipeline will be damaged or even broken, resulting in waste of materials, production stoppage, environmental pollution and even major accidents. [0003] PE material is a polymer inert material, which is difficult to bond with other materials, and has great elasticity but low stiffness. As the operating pressure of the pipeline changes, the geometric dimensions such as the diameter, length, and thickness of the pipeline will change dynamically. Traditi...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): F16L55/168F16L55/179
CPCF16L55/168F16L55/179
Inventor 王秀忠辛兵马中山崔小光刘立安郑瑞丰白卫东卢玉澎王爱民
Owner TANGSHAN SANYOU CHEM IND