CN1221864A - Compound structural lining for repairing on-line pipeline and its pressure coating tech. - Google Patents
Compound structural lining for repairing on-line pipeline and its pressure coating tech. Download PDFInfo
- Publication number
- CN1221864A CN1221864A CN 98111763 CN98111763A CN1221864A CN 1221864 A CN1221864 A CN 1221864A CN 98111763 CN98111763 CN 98111763 CN 98111763 A CN98111763 A CN 98111763A CN 1221864 A CN1221864 A CN 1221864A
- Authority
- CN
- China
- Prior art keywords
- coating
- polymer
- layer
- pressure
- tech
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
A compound liner structure and its pressure coating technology for repairing in-line pipeline are disclosed. Said compound liner is composed of polymer-cement mortar layer as reinforcing layer (2-6 mm in thickness), epoxy resin-daub layer as transition layer (0.25-1.0 mm in thickness) and epoxy glass scale layer as anticorrosion layer (0.1-0.5 mm in thickness). Said polymer-cement mortar is prepared from Portland cement, fine sand, high-molecular polymer, water-reducing agent, coagulation regulator and water. The found liner features high strength, adhesion and anticorrosion nature. Said pressure coating technology features that two coater are arranged by one after another, the coated material is between them, the back coater is driven by compressed air to advance forward, and the preceding coater generates damping action, resulting in squeezing the coated material and coating it onto pipe wall uniformly.
Description
Composite structure lining that the present invention uses for online pipeline rehabilitation and coating tech method thereof.
All kinds of metallic conduits all are faced with serious day by day internal corrosion problem along with the pipe growth in age.For the serious pipeline of corrosion failure, if adopt method for updating then costly.Therefore, more and more pay attention to the exploitation that online old pipeline original position is strengthened recovery technique both at home and abroad.Proposed as interspersed plastic tube in recent years, turned over the method that original positions such as lining Polypropylence Sheet, sprayed coating are repaired online old pipeline, but all there is certain defective, as: the investment of plastic tube method of interting big (newly-built approximately pipeline 70%), turn over the quality instability of lining Polypropylence Sheet method, the difficulty of construction of sprayed coating method is big and cost is high.
The objective of the invention is to develop a kind of composite structure lining and pressure coating tech that is used for online pipeline rehabilitation, can on inner-walls of duct, form the composite coating structure of continuous whole with higher-strength, constitute an integral body with the steel pipe body, can improve the bearing capacity and the decay resistance of old pipeline significantly, pipeline life is effectively prolonged, and low production cost only is 40% of a new replace tubes line.
The object of the present invention is achieved like this, the composite structure lining that is used for online pipeline rehabilitation is a kind of three layers of foreign peoples's a coating system, be made of back-up coat, transition layer and anticorrosive coat, the thickness of back-up coat is that the thickness of 2-6mm, transition layer is that the thickness of 0.25-1.0mm and anticorrosive coat is 0.1-0.5mm.Back-up coat adopts the polymer cement mortar material, it is to be made through mixing to stir by ordinary Portland cement, fine sand, high molecular polymer, water reducing agent and water, the weight proportion of each component is: the ratio of mud (0.3-0.4): 1, cement-sand ratio 1: 1, polymer 4%-10%, water reducing agent 0.5%-1.0%, the degree of sinking to of slush is controlled at 80-120mm.Transition layer adopts the epoxy resin glue mud material; Anticorrosive coat adopts epoxy glass flake coating.The composite structure lining adopts pressure coating tech to realize.The pressure squeezing and coating are to adopt two applicators that coating is clipped in the middle, and keep a rational pressure reduction (0.05-0.2MPa), with certain speed (0.5-2.0m/s) applicator are pushed to the other end from pipeline one end to be repaired.In the applicator running, coating continuously is compressed on the inner-walls of duct around applicator, forms continuous coated.Squeezing and coating successively will form the composite coating structure of design thickness, can improve the bearing capacity and the corrosion resistance of old pipeline significantly.
Fig. 1 is the generalized section according to the composite structure lining that is used for online pipeline rehabilitation proposed by the invention.
Fig. 2 is the pressure coating tech system layout schematic representation according to the composite structure lining that is used for online pipeline rehabilitation proposed by the invention.
Describe the concrete formation and the pressure coating tech method thereof of composite structure lining material of the present invention in detail below in conjunction with drawings and Examples.
As shown in Figure 1, composite structure lining of the present invention is made up of three layers of overlay, what it was close to inner-walls of duct 1 is back-up coat 2, thickness 2-6mm, adopt the polymer cement mortar material, made through mixing to stir by ordinary Portland cement, fine sand, high molecular polymer, water reducing agent, adjustable solidification agent and water, the weight proportion of each component is: water: cement=(0.3-0.4): 1; Cement: sand=1: 1; Polymer is 4%-10%; Water reducing agent is 0.5%-1.0%; Adjustable solidification agent depends on actual need and decides, and the degree of sinking to of slush is controlled at 80-120mm.Coating one deck transition layer 3 on the basis of back-up coat 2, its thickness is 0.25-1.0mm, adopts the epoxy resin glue mud material, is a kind of commercially available prod, present embodiment adopts that solid content is 90%, viscosity is the epoxy resin glue mud material of 170-180CP.Anticorrosive coat 4 is coated on the transition layer 3, and it adopts epoxy glass flake coating (commercially available).
Adopt the pressure coating tech method at inner-walls of duct coating composite structure lining, the equipment that adopts comprises: stirrer 5, mixing hopper 6, plunger charge pump 7, preceding applicator 8, back applicator 9, air compressor 10, ball serving device and ball collecting device 11 etc., system layout as shown in Figure 2.The squeezing and coating process is undertaken by the operation of batch mixing, reinforced, coating, quality inspection.The back-up coat raw material that adopts mechanical mixing method to prepare in proportion drops in the stirrer 5 and stirs, through mixing hopper 6 and plunger pump 7 will be mixed reinforced layered slurry injection ball serving device in former and later two applicators between.By the air of air compressor 10 generation certain pressures, promote back applicator 9 and push ahead, like this, the applicator 9 of back just promotes the coating section and preceding applicator 8 advances in pipeline.In the applicator running, coating continuously is compressed on the inner-walls of duct around applicator, forms continuous coated.Because the air pressure that the damping function of preceding applicator 8 and air compressor 10 produce produces extruding to the coating between two applicators of front and back, coating just constantly adheres to and forms coating on the tube wall.After being coated with back-up coat, be coated with transition layer 3 and anticorrosive coat 4 again.Coating quality detects to adopt in the pipe spies on method and sample cell observation method.
Online pipeline rehabilitation or other pipeline that composite construction lining of the present invention and pressure coating tech thereof are particularly suitable for heavy corrosion are interior anticorrosion, have following advantage:
1. composite construction lining intensity height, good corrosion resistance can be closely as one with steel pipe, can be remarkable Improve bearing capacity and the service life of old pipeline.
2. pressure coating tech is adapted at the anticorrosion and repairing construction of spool road original position, need not excavation.Once can handle pipeline and reach 5km.The coating that forms is evenly continuous, reliable in quality.Facility are simple, invest lowly, easy and simple to handle, are fit to field work.
3. polymer cement mortar is very not strict to the tube wall surface processing requirements,, rust cleaning moist at pipeline do not reach under the condition of Sa level yet can with the pipeline secure bond, and close with the linear expansion coeffcient of steel pipe, can not destroy coating because of the rising-heat contracting-cold of pipeline.
4. engineering cost is low, and repairing the pipeline cost only is 40% of newly-built pipeline expense.Pipeline good corrosion resistance after the reparation, the life-span is long, is contemplated to 2-3 times of steel pipe life-span.
Claims (4)
1. a composite structure lining that is used for online pipeline rehabilitation is characterized in that it is three layers of foreign peoples's coating system that are made of polymer cement mortar back-up coat, epoxy mortar transition layer, epoxy glass flake anticorrosive coat, adopts pressure coating tech to realize.
2. composite structure lining according to claim 1, it is characterized in that the polymer cement mortar back-up coat be by ordinary Portland cement, fine sand, high molecular polymer, water reducing agent, adjustable solidification agent and water through mixing together, the weight proportion of each component is: cement-sand ratio 1: 1, the ratio of mud (0.3-0.4): 1, polymer 4%-10%, water reducing agent 0.5%-1.0%.
3. pressure coating tech that is used for the composite structure lining of online pipeline rehabilitation, it is characterized in that adopting former and later two applicators that coating to be coated with is clipped in the middle, promoting the back applicator with pressurized air travels forward, the damping function of preceding applicator produces extruding to the coating between two applicators, coating just constantly is coated in and forms coating on the tube wall, and three layers of foreign peoples's coating adopt the layering coating.
4. pressure coating tech according to claim 3 is characterized in that adopting the pressure pump delivery method that coating to be coated with is added between former and later two applicators.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98111763 CN1221864A (en) | 1998-12-28 | 1998-12-28 | Compound structural lining for repairing on-line pipeline and its pressure coating tech. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98111763 CN1221864A (en) | 1998-12-28 | 1998-12-28 | Compound structural lining for repairing on-line pipeline and its pressure coating tech. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1221864A true CN1221864A (en) | 1999-07-07 |
Family
ID=5221665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98111763 Pending CN1221864A (en) | 1998-12-28 | 1998-12-28 | Compound structural lining for repairing on-line pipeline and its pressure coating tech. |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1221864A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100447476C (en) * | 2005-04-30 | 2008-12-31 | 中国科学院金属研究所 | Construction process for online inner coating protection of on-service underground pipeline and its special apparatus |
| CN100532909C (en) * | 2007-08-15 | 2009-08-26 | 微观工程复合材料技术公司 | Fiber reinforcement type brittle composite material pipeline coatings, its coating method and pipeline |
| CN101915337A (en) * | 2010-07-27 | 2010-12-15 | 中国科学院等离子体物理研究所 | Device and method for online sealing vacuum leakage holes of pipeline cavity |
| CN102317059A (en) * | 2009-03-09 | 2012-01-11 | 波音公司 | Tapered patch for predictable bonded rework of composite structures |
| CN103466071A (en) * | 2013-08-23 | 2013-12-25 | 中国航空工业集团公司西安飞机设计研究所 | Corrosion protection method for closed room structure |
| CN106764121A (en) * | 2016-12-08 | 2017-05-31 | 大连圣洁热处理科技发展有限公司 | A kind of water transferring line process of surface treatment |
| CN109985792A (en) * | 2018-10-11 | 2019-07-09 | 马付林 | A kind of long range coated lining anti-corrosion method of inner wall of steel pipe |
| CN109986471A (en) * | 2018-10-11 | 2019-07-09 | 马付林 | A kind of long range surface treatment of inner wall of steel pipe and coated lining anti-corrosion method |
| CN110894901A (en) * | 2019-11-27 | 2020-03-20 | 成都龙之泉科技股份有限公司 | Anticorrosive type pipeline repair hose |
-
1998
- 1998-12-28 CN CN 98111763 patent/CN1221864A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100447476C (en) * | 2005-04-30 | 2008-12-31 | 中国科学院金属研究所 | Construction process for online inner coating protection of on-service underground pipeline and its special apparatus |
| CN100532909C (en) * | 2007-08-15 | 2009-08-26 | 微观工程复合材料技术公司 | Fiber reinforcement type brittle composite material pipeline coatings, its coating method and pipeline |
| CN102317059A (en) * | 2009-03-09 | 2012-01-11 | 波音公司 | Tapered patch for predictable bonded rework of composite structures |
| CN102317059B (en) * | 2009-03-09 | 2015-11-25 | 波音公司 | For the convergent sticking patch that the measurable bonding of composite construction is repaired |
| CN101915337A (en) * | 2010-07-27 | 2010-12-15 | 中国科学院等离子体物理研究所 | Device and method for online sealing vacuum leakage holes of pipeline cavity |
| CN103466071A (en) * | 2013-08-23 | 2013-12-25 | 中国航空工业集团公司西安飞机设计研究所 | Corrosion protection method for closed room structure |
| CN106764121A (en) * | 2016-12-08 | 2017-05-31 | 大连圣洁热处理科技发展有限公司 | A kind of water transferring line process of surface treatment |
| CN106764121B (en) * | 2016-12-08 | 2019-03-26 | 大连圣洁热处理科技发展有限公司 | A kind of water transferring line process of surface treatment |
| CN109985792A (en) * | 2018-10-11 | 2019-07-09 | 马付林 | A kind of long range coated lining anti-corrosion method of inner wall of steel pipe |
| CN109986471A (en) * | 2018-10-11 | 2019-07-09 | 马付林 | A kind of long range surface treatment of inner wall of steel pipe and coated lining anti-corrosion method |
| CN110894901A (en) * | 2019-11-27 | 2020-03-20 | 成都龙之泉科技股份有限公司 | Anticorrosive type pipeline repair hose |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111828057B (en) | System and process for repairing leakage water of high-speed railway or subway tunnel | |
| CN1221864A (en) | Compound structural lining for repairing on-line pipeline and its pressure coating tech. | |
| CN1755184A (en) | Excavation-free integral restoration method of underground conduit and inspection well | |
| CN114753258A (en) | Construction method for paving whole bridge deck based on UHPC | |
| CN206487115U (en) | A kind of super abrasive polyurethane garage terrace | |
| CN108729321B (en) | Prefabricated orthotropic plate steel bridge deck pavement structure and pavement method thereof | |
| CN117735917A (en) | Corrosion-resistant sprayed ultra-high performance concrete, corrosion-resistant coating and construction method thereof | |
| CN1296577C (en) | Method for repairing sewer using water-proof film lining | |
| CN112682070A (en) | Tunnel reinforcing steel ring positioning and mounting process | |
| CN106436771B (en) | A kind of tunnel, city piping lane leakage expansion joint method for repairing and mending and expansion gap device | |
| CN209260867U (en) | A kind of drainage inspection well whirl spraying device | |
| CN101332637B (en) | Screw propulsion type mortar pipe-line transportation system | |
| CN100343567C (en) | Quartz sand-resin premixed glass fiber reinforced plastic sand-inclusion pipeline | |
| CN201195948Y (en) | Helical propulsion type mortar pipeline transportation system | |
| Khudaev et al. | Technology to restore design parameters of irrigation pump discharge pipelines | |
| CN2890212Y (en) | Two-cloths three-oil resin glass reinforced plastics isolation layer | |
| KR101405370B1 (en) | Compositions containing recycle material, and method for repairing and reinforcing sections of concrete constructions using the double mixer shaft | |
| CN108102505B (en) | Pipeline inner wall coating, preparation method thereof and application thereof in underground pipe network | |
| EP0770811A1 (en) | Method for lining a pipe | |
| CN2547994Y (en) | Pipeline-repairing structure of stainless steel lined pipe for repairing underground old pipeline | |
| CN101761730A (en) | Corrosion prevention method for inner wall of large-caliber water supply steel tube | |
| CN114150877A (en) | Construction method of ultra-high performance concrete | |
| CN218250929U (en) | Steel side wing plate coating equipment for steel box girder production and processing | |
| CN2197199Y (en) | Die set for manufacturing corrosionproof metal pipe | |
| JP2547997B2 (en) | Resin composition for lining inner surface of pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Zou Deyong Document name: Deemed as a notice of withdrawal |
|
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |