CN101813227A - Method for maintaining and reinforcing metallic tubular structure - Google Patents
Method for maintaining and reinforcing metallic tubular structure Download PDFInfo
- Publication number
- CN101813227A CN101813227A CN200910229245A CN200910229245A CN101813227A CN 101813227 A CN101813227 A CN 101813227A CN 200910229245 A CN200910229245 A CN 200910229245A CN 200910229245 A CN200910229245 A CN 200910229245A CN 101813227 A CN101813227 A CN 101813227A
- Authority
- CN
- China
- Prior art keywords
- carbon fibre
- fibre cloth
- carbon
- insulating varnish
- cloth
- 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
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention discloses a method for maintaining and reinforcing a metallic tubular structure and mainly relates to a method for reinforcing the metallic tubular structure. In the activities of petroleum exploitation and transportation and the like, tubular metal tubes are widely adopted; the structure and members are always in the severe working environment; and once the structure is used and is commonly expected to work uninterruptedly in the service life period, or the service time limit is expected to be effectively prolonged. Therefore, the structure is generally repaired and reinforced by means of welding, plate shell reinforcement, clamping and the like, which can easily cause the damage to the original structure; and the repairing and reinforcing means have high requirement on auxiliary installation tools. In the method, the metal tubular structure and members are reinforced by using carbon fiber cloth; and the carbon fiber cloth is adhered to a weld joint, a fatigue region, an external damage region and other regions needing to be reinforced manually and bears stress together with natural metal without needing a large number of special devices. The method can be used for reinforcing various metal tubes and effectively prolongs the service life of the reinforced parts.
Description
Technical field
The present invention is used for the maintenance and reinforcement of tubular metal structure and member, and the tubing of particularly petroleum production, transportation art is reinforced.
Background technique
In petroleum production, in the transportation art, and in most steel structure, the metallic tubular articles of many employings, marine riser as ocean drilling use, conveyance conduit, the tension and compression member of metal framework structure etc., in design, make, can there be various defectives in construction, in its military service phase, because a variety of causes causes the corrosion of member and weld seam, tired, crackle or external force damage etc. need be carried out it is carried out various maintenances, sometimes adopt welding, riveted joint, increase means reparations such as bolt connection, though improved the stressing conditions of rejected region to a certain extent, cause new damage and residual stress to original structure, very unfavorable to improving structural fatigue.Perhaps adopt and change defect area, intact member in the welding, the local means of strengthening of clip that adopt are also arranged, or can fill other materials by inner tubular articles of filling, make it to be strengthened, also have and add new member, change the power path that is subjected to of original structure, make original structure obtain to strengthen, these methods add persistent erection at structural repair, may cause the damage that old structure is new, and construction equipment requires high, to stop to be repaiied the function of structure when keeping in repair sometimes, make with the relevant device of being repaiied to be in the maintenance end-of-life state.
Summary of the invention
For solving the deficiency that prior art exists, the invention provides a kind of convenient, fast maintenance and reinforcement method that does not need special equipment, can improve structural strength, improve the metal tube local stability, improve the tension pressure energy power of pipe, increase the service life.
Material and method that the present invention realizes are as follows:
The carbon fibre cloth that is used to reinforce; the resin (comprising underfill resin layer, levelling resin, insulating varnish and outer protection resin) that is used for affixing carbon fabric; resin stirs mixed container, is used to clear up the instruments such as brush that the instrument for the treatment of reinforced surface and stickup, insulating varnish are used.
Its concrete implementation step can be as follows:
(1) at first carries out cleaning, the rust cleaning that carbon fibre cloth is pasted the position, expose the metal true qualities.
According to the situation of wanting reinforcing area, adopt certain instrument that non-intrinsically safe materials such as the paint on reinforcing area surface, corrosion, weld seam coating are removed, expose the metal true qualities to get final product, do not need surface finish.
(2), can prepare, brushing underfill resin layer and alignment material according to position to be pasted situation.
Be subjected to external force to damage the situation of subsiding if position to be reinforced exists, need to adopt underfill resin layer and alignment material will treat reinforcing place levelling, and then the brushing underfill resin layer.
(3) preparation and brushing insulating varnish or stickup resin are pasted the protective underlayer glass fibre.
The preparation insulating varnish at affixing carbon fabric zone brushing insulating varnish, is pasted the cover glass fiber, guarantees that interlayer does not have gas.After treating bottom glass fibre dry to touch, carry out the brushing insulating varnish or paste resin.
(4) affixing carbon fabric, its mode is as follows:
Can be at first with carbon fibre cloth brushing insulating varnish, or at the direct affixing carbon fabric of reinforcing area of brushing insulating varnish, but to guarantee that all insulating varnish fully soaks into carbon fibre cloth.Carbon fibre cloth can be overlayed in reinforcing the position with have gentle hands, with hand or adopt special cylinder, bubble be got rid of, not damage carbon fibre cloth when noting roll extrusion or getting rid of bubble along the repeatedly roll extrusion of carbon fibre cloth fiber direction.
(5) surface protection of carbon fibre cloth.
After carbon fibre cloth has been pasted, brushing one deck insulating varnish again, then according to the working environment of reinforcing the position, when needs are done surface protection, can be as required at carbon fibre cloth outside brushing protective material, perhaps sticking glass fabric etc.
Description of drawings
Fig. 1 is the metal tube outer surface that the carbon fibre cloth annular is wrapped in reinforcing
Fig. 2 is the metal tube outer surface that carbon fibre cloth vertically sticks on reinforcing, adopts the fibre cloth anchoring at the two ends of carbon fibre cloth
Fig. 3 exists arm to be responsible for the carbon cloth reinforced mode of K type pipe node (1) that intersects
Fig. 4 (the same Fig. 4 of Figure of abstract) exists arm to be responsible for the carbon cloth reinforced mode of K type pipe node (2) that intersects
Reference character 7 expression-V-arrangement reinforcing carbon fibre cloth (the pipe back side) among Fig. 4; Reference character 8 expression-V-arrangement reinforcing carbon fibre cloth (pipe front) among Fig. 4; Reference character 5 expression-end anchorage carbon fibre cloths among Fig. 4; Reference character 9 expression-V-arrangement reinforcing carbon fibre cloth among Fig. 4; Reference character 10 expression-reinforcing carbon fibre cloth among Fig. 4
Fig. 5 exists arm to be responsible for the carbon cloth reinforced mode of T type pipe node that intersects
Fig. 6 is carbon cloth reinforced typical detail sections node
Embodiment
Below in conjunction with accompanying drawing, illustrate the present invention.
The embodiment one of affixing carbon fabric: as shown in Figure 1; after the work before finishing affixing carbon fabric; for wanting hoop wrapping metal tube post; avoid the local buckling of metal tube; improve the resistance to compression bearing capacity of post or the needs that weld seam is strengthened; after zone to be strengthened smeared insulating varnish; the carbon fibre cloth hoop is twined sticking area; paste one deck carbon fibre cloth and will guarantee that carbon fibre cloth has enough lap length in joint area; multilayer is pasted will guarantee that the last layer carbon fibre cloth is fully soaked into by resin; after the carbon fibre cloth stickup finishes; also to smear one deck insulating varnish again; according to the working environment of metal tube, can externally paste the cover glass fibre cloth as affixing carbon fabric, same annular is twined.
The embodiment two of affixing carbon fabric: as shown in Figure 2, carbon fibre cloth is vertically pasted along metal tube, and will manage circumferentially and wrap up fully, its carbon fibre tow along tubular axis to layout, after having pasted the reinforcing carbon fibre cloth, guarantee that the two ends carbon fibre cloth fully soaks into insulating varnish, after treating carbon fibre cloth two ends insulating varnish dry to touch, insulating varnish is smeared at two ends, hoop is pasted two-layer left and right sides fibre cloth again, promptly carry out the anchoring of carbon fibre cloth press strip at the two ends of reinforcing carbon fibre cloth, perhaps adopt the glass fiber cloth press strip to carry out anchoring, anchoring adopts hoop to twine with carbon fibre cloth or glass fiber cloth.Pasted the preservative treatment behind the carbon fiber equally as required.
The embodiment three of affixing carbon fabric: as shown in Figure 3, reinforce for the K type pipe node that has the person in charge, arm, adopt carbon fibre cloth to be parallel to person in charge's axis, be responsible for circumferentially parcel, arm can cut out hole with the ground of being responsible for handing-over, vacates the arm position, or determines the subsidy of small pieces carbon fiber according to vacant part size, and, play anchoring and reinforcement effect simultaneously at the circumferential affixing carbon fabric of shown position.The stickup of its carbon fibre cloth and processing are with mode one and two.
The embodiment four of affixing carbon fabric: as shown in Figure 4, reinforce for the K type pipe node that has the person in charge, arm, earlier as shown in Fig. 4 a, carbon fibre cloth is pasted on two arms with the V-arrangement intersection, Yi Bian wherein be affixed on the pipe front, another side is affixed on the pipe back, paste equally once more and cut carbon fibre cloth, paste the back that is affixed on of front, the back be affixed on the front, guarantee that the number of plies carbon fibre cloth that arm is required wraps up fully.Carry out carbon fiber ring simultaneously to anchoring such as Fig. 4 b.The carbon fibre cloth hoop of being responsible for is afterwards pasted, as Fig. 4 c.The stickup of its carbon fibre cloth and processing are with mode one and two.
The embodiment five of affixing carbon fabric: as shown in Figure 5, reinforce for the T type pipe node that has the person in charge, arm, earlier as shown in Fig. 5 a, carbon fibre cloth is pasted on two sides, arm front and back with the V-arrangement intersection, wherein be affixed on the pipe front on one side, another side is affixed on the pipe back, pastes equally once more to cut carbon fibre cloth to the needs number of plies, guarantees that the number of plies carbon fibre cloth that arm is required wraps up fully.Carry out carbon fiber ring afterwards to anchoring, finish the carbon fibre cloth hoop of being responsible for after arm is reinforced and paste, as Fig. 5 b.The stickup of its carbon fibre cloth and processing are with mode one and two.
Claims (3)
1. metallic tubular structure maintenance, strengthening method is characterized in that comprising and adopt this novel reinforced material of carbon fiber, and several resins that are used to paste carbon fiber are pasted on tube surfaces with carbon fibre cloth.
2. carbon fiber according to claim 1 is a carbon fibre cloth, it is the cloth shape carbon fiber that adopts after the carbon fibre precursor bunchy weaves, or with the fiber of other fibers (glass etc.) mixed weaving, in use be divided into high strong type, universal and high model, high-strength and high-modulus type carbon fibre cloth, and various mixing, complex fabric cloth, can under different operating modes, adopt different types.Adopt resin that carbon fibre cloth is pasted on the metal pipe surface, right 1 described metallic tubular structure comprises the metal matter pipe (containing valve) of hollow, inner metal tube and solid metal column rod of being filled by other materials.
3. metallic tubular structure maintenance, strengthening method is characterized in that:
(1) at first carries out cleaning, the rust cleaning that carbon fibre cloth is pasted the position, expose the metal true qualities.
(2) according to position to be pasted situation, can prepare brushing underfill resin layer and alignment material.
(3) preparation and brushing insulating varnish or stickup resin, the sticking glass fibrous protective layer continues the brushing insulating varnish afterwards or pastes resin.
(4) affixing carbon fabric, its mode is as follows:
I soaks into insulating varnish (or pasting the back brushing) with carbon fibre cloth, and annular is wrapped in the metal tube outer surface.
II soaks into insulating varnish (or pasting the back brushing) with carbon fibre cloth, vertically sticks on the metal tube outer surface.
III soaks into insulating varnish (or pasting the back brushing) with carbon fibre cloth, vertically sticks on the person in charge, the crossing K type pipe node metal tube outer surface of arm.
IV soaks into insulating varnish (or pasting the back brushing) with carbon fibre cloth, sticks on the person in charge, the crossing K type pipe node metal tube outer surface of arm, and is responsible on the arm.
V soaks into insulating varnish (or pasting the back brushing) with carbon fibre cloth, sticks on the person in charge, the crossing T type pipe node metal tube outer surface of arm, and is responsible on the arm.
(5) surface protection of affixing carbon fabric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910229245A CN101813227A (en) | 2009-10-20 | 2009-10-20 | Method for maintaining and reinforcing metallic tubular structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910229245A CN101813227A (en) | 2009-10-20 | 2009-10-20 | Method for maintaining and reinforcing metallic tubular structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101813227A true CN101813227A (en) | 2010-08-25 |
Family
ID=42620549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910229245A Pending CN101813227A (en) | 2009-10-20 | 2009-10-20 | Method for maintaining and reinforcing metallic tubular structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101813227A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556713A (en) * | 2013-10-30 | 2014-02-05 | 南京工业大学 | Steel pipe intersecting joint reinforced by carbon fiber composite reinforced material |
| CN104790683A (en) * | 2015-04-14 | 2015-07-22 | 同济大学 | Method for reinforcing metal tube joint by means of fiber reinforced polymers (FRPs) |
| CN106351463A (en) * | 2016-10-21 | 2017-01-25 | 中以高新材料（深圳）有限公司 | Carbon fiber preformed reinforcement structure of existing net rack components |
| CN111102427A (en) * | 2018-10-25 | 2020-05-05 | 中国石油化工股份有限公司 | Method for reinforcing and repairing metal pipeline by using carbon fiber cloth vacuum infusion technology |
| CN111137822A (en) * | 2019-12-19 | 2020-05-12 | 黄河勘测规划设计研究院有限公司 | High-strength force transmission column and manufacturing method thereof |
| CN112178352A (en) * | 2019-07-05 | 2021-01-05 | 中国石油化工股份有限公司 | Repair reinforcement structure of complex space steel pipe structure |
| CN112762271A (en) * | 2019-10-21 | 2021-05-07 | 中国石油化工股份有限公司 | Method for reinforcing and repairing in-service water-permeable metal pipeline by using carbon fiber composite material |
| CN114352066A (en) * | 2022-01-29 | 2022-04-15 | 同济大学 | Method for reinforcing K' T-shaped node of circular tube structure space by carbon fiber reinforced composite material |
-
2009
- 2009-10-20 CN CN200910229245A patent/CN101813227A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556713A (en) * | 2013-10-30 | 2014-02-05 | 南京工业大学 | Steel pipe intersecting joint reinforced by carbon fiber composite reinforced material |
| CN104790683A (en) * | 2015-04-14 | 2015-07-22 | 同济大学 | Method for reinforcing metal tube joint by means of fiber reinforced polymers (FRPs) |
| CN106351463A (en) * | 2016-10-21 | 2017-01-25 | 中以高新材料（深圳）有限公司 | Carbon fiber preformed reinforcement structure of existing net rack components |
| CN111102427A (en) * | 2018-10-25 | 2020-05-05 | 中国石油化工股份有限公司 | Method for reinforcing and repairing metal pipeline by using carbon fiber cloth vacuum infusion technology |
| CN112178352A (en) * | 2019-07-05 | 2021-01-05 | 中国石油化工股份有限公司 | Repair reinforcement structure of complex space steel pipe structure |
| CN112762271A (en) * | 2019-10-21 | 2021-05-07 | 中国石油化工股份有限公司 | Method for reinforcing and repairing in-service water-permeable metal pipeline by using carbon fiber composite material |
| CN111137822A (en) * | 2019-12-19 | 2020-05-12 | 黄河勘测规划设计研究院有限公司 | High-strength force transmission column and manufacturing method thereof |
| CN111137822B (en) * | 2019-12-19 | 2021-09-24 | 黄河勘测规划设计研究院有限公司 | High-strength force transmission column and manufacturing method thereof |
| CN114352066A (en) * | 2022-01-29 | 2022-04-15 | 同济大学 | Method for reinforcing K' T-shaped node of circular tube structure space by carbon fiber reinforced composite material |
| CN114352066B (en) * | 2022-01-29 | 2023-08-25 | 同济大学 | Method for reinforcing K' T-shaped node of circular tube structural space by carbon fiber reinforced composite material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101813227A (en) | Method for maintaining and reinforcing metallic tubular structure | |
| CN105805432B (en) | A kind of composite enhancing steel conduit and preparation method thereof | |
| CN1276024C (en) | Strengthening carbon fiber composite material and method for repairing defective pipeline | |
| Mahdi et al. | Development of cost-effective composite repair system for oil/gas pipelines | |
| CN106238970B (en) | A kind of boss angle welding composite repair reinforcement | |
| CN101206000B (en) | Method for renovation and reinforcement of pipe using basalt fibre complex material | |
| CN101967619B (en) | Method for reinforcement repair of pipeline by using metal hot spraying and fibrous composite | |
| CN101204770A (en) | Pressure structure clamp and fiber compound material combination expander technology | |
| CN104534221A (en) | Method for repairing and reinforcing pipeline by means of composite materials | |
| CN104233964B (en) | The CFRP cloth reinforcing construction of steel girder bridge welded K-joint of steel tubular | |
| CN105650400A (en) | Internal strengthening and reinforcing method and strengthening combined structure for PCCP (prestressed concrete cylinder pipes) with broken wires | |
| CN105670556A (en) | Carbon fiber reinforcement technology for corrosion and protection of petrochemical device | |
| CN104985386B (en) | A kind of leakage craft leakage mending method of gas reservoir | |
| Pantelides et al. | Repair of cracked aluminum overhead sign structures with glass fiber reinforced polymer composites | |
| CN204112245U (en) | The CFRP cloth reinforcing construction of steel girder bridge welded K-joint of steel tubular | |
| US5194110A (en) | Method of preventing rupture of storage tanks | |
| CN104033724B (en) | Bamboo is wound around the preparation method of combined vertical storage tank | |
| CN102927407B (en) | The method of steel pipeline anti-corrision layer repaired mouth and the product obtained by the method | |
| CN205298944U (en) | Carbon -fibre composite crack arrester | |
| CN208138697U (en) | A kind of pipeline strength rehabilitation structure based on prefabricated board method and live cement-dipping method | |
| CN103306491A (en) | FRP reinforcement arc concrete impact resistant column | |
| CN205927583U (en) | Boss angle welding combined material restores reinforcement structure | |
| CN104985280A (en) | Welding procedure method for ore pulp pipe to slip mass, collapse body and earthquake fault zone | |
| CN107310167A (en) | A kind of building method of reinforced carbon fiber cloth composite bed and the pipeline crack arrester of application this method | |
| CN205655031U (en) | Compound back lining integrated configuration of reinforcement prevention of seepage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100825 |