A process for repairing old pipes with ultraviolet curing hose lining
An ultraviolet and ultraviolet lamp technology, applied in the direction of pipes/pipe joints/fittings, pipe components, mechanical equipment, etc., can solve the problems of increasing the thickness of the inner lining layer, the collapse of the inner lining layer, waste, etc., and achieve physical and mechanical performance improvement and saving. Energy and materials, the effect of ensuring the first time success rate
Active Publication Date: 2017-02-01
HENAN ZHONGTUO PIPELINE ENG
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Problems solved by technology
The CIPP lining method is the most widely used and more convenient and effective method. The materials used are polyester fiber felt and ordinary resin, which are cured by heating, but there are also some problems: 1. The curing cannot be well controlled. Time, once it fails, both direct and indirect costs will cause huge waste; 2. CIPP lining needs to be prepared with ingredients and impregnated with resin, which increases the workload and preparation time of the construction site, increases the risk of failure, and occupies roads. 3. The combination of polyester fiber and resin and its own strength make the performance of the inner lining layer formed after curing poor, and the inner lining layer often has insufficient pressure bearing capacity. The inner liner collapse, bulge, and rupture accidents often need to increase the thickness of the inner liner
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[0030] A process for repairing old pipelines with ultraviolet curing hose inner linings, comprising the following steps: a. on-site survey; b. production of glass fiber inner hose semi-finished products in a workshop; c. on-site lining construction.
[0031] The site investigation step includes measuring the inner diameter of the pipeline to be repaired and measuring the length of the pipeline to be repaired.
[0032] The steps of making the semi-finished glass fiber lined hose in the workshop are as follows:
[0033] (1) According to the on-site investigation, the inner diameter and length of the pipeline to be repaired are obtained, and the PE shading film, PET outer isolation film and PET inner isolation film, glass fiber cloth and glass fiber chopped mat are cut according to the measured size in the workshop;
[0034] (2) The glass fiber cloth and the glass fiber chopped strand mat are sewed into a cylindrical shape in the order that the inside and outside are glass fiber ...
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The invention relates to a non-excavation-repairing technical field of old pipelines, in particular to an ultraviolet light solidification soft pipe lining old pipeline repairing technology. The ultraviolet light solidification soft pipe lining old pipeline repairing technology comprises the following steps that a, an on-the-spot investigation is conducted; b, glass fiber lining soft pipe semi-finished products are manufactured in a workshop, wherein glass fiber lining soft pipe semi-finished products in the workshop comprises the steps of manufacturing fiber soft pipes, preparing light-curing resin and manufacturing lining soft pipe semi-finished products; c, on-the-spot lining construction is conducted. Preparation in the workshop and formation on the spot are adopted in the ultraviolet light solidification soft pipe lining old pipeline repairing technology.
Description
technical field [0001] The invention relates to the technical field of non-excavation repair of old pipelines, in particular to a process for repairing old pipelines with ultraviolet curing hose linings. Background technique [0002] The current old pipeline repair methods include cement mortar extrusion coating method, CIPP lining method, HDPE pipe interspersed lining method, stainless steel lining method, etc. The CIPP lining method is the most widely used and more convenient and effective method. The materials used are polyester fiber felt and ordinary resin, which are cured by heating, but there are also some problems: 1. The curing cannot be well controlled. Time, once it fails, both direct and indirect costs will cause huge waste; 2. CIPP lining needs to be prepared with ingredients and impregnated with resin, which increases the workload and preparation time of the construction site, increases the risk of failure, and occupies roads. 3. The combination of polyester f...
Claims
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IPC IPC(8): F16L55/162
CPCF16L55/163
Inventor 葛延超张严甫王永红程泽
Owner HENAN ZHONGTUO PIPELINE ENG