CN109798403A - With the steel pipe pipeline connecting method for pasting fibre reinforced composites substitution joint welding - Google Patents
With the steel pipe pipeline connecting method for pasting fibre reinforced composites substitution joint welding Download PDFInfo
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- CN109798403A CN109798403A CN201910138012.3A CN201910138012A CN109798403A CN 109798403 A CN109798403 A CN 109798403A CN 201910138012 A CN201910138012 A CN 201910138012A CN 109798403 A CN109798403 A CN 109798403A
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- fibre reinforced
- reinforced composites
- pipeline
- steel pipe
- composite material
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Abstract
The invention discloses a kind of steel pipe pipeline connecting methods for replacing joint welding with stickup fibre reinforced composites, belong to technical field of pipeline connection.It is constructed again after required length and thickness by calculating acquisition fibre reinforced materials, is repaired, construction site is without getting angry, it is easy for construction, it is easily guaranteed that quality, an appropriate number of fibrous composite is pasted inside pipeline, not only it had been able to satisfy the demand of pressure in the longitudinally connected intensity of pipeline and pipeline use process, but also has been able to satisfy the seal requests such as waterproof and anticorrosion, had been had a clear superiority than current methods；Length and thickness to required fibre reinforced composites carry out quantitatively calibrating, determine optimum length and thickness, can be avoided waste of material again while ensuring intensity.
Description
Technical field
The present invention relates to a kind of steel pipe pipeline connecting methods for replacing joint welding with stickup fibre reinforced composites, belong to pipeline
Interconnection technique field.
Background technique
The long defeated steel conduit of underground heavy caliber (DN >=1000mm) at present is formed by every section for 9-12 meters of long steel pipes, steel
Pipe is with steel plate strip in factory by brake forming, then it is welded be made, because steel pipe will carry out hydraulic pressure, bending, pressure before factory
Flat equal experiment, therefore the quality of every section of steel pipe is easily guaranteed that.But when a section large-diameter steel pipe is transported to scene and is laid with, steel pipe
Between connection at present frequently with scene overlap joint inner wall or the method that is fully welded of outer wall border, this weld seam position done in building-site
It sets dispersion, need to get angry, inconvenience of constructing, it is difficult to guarantee quality, be easy to appear gap and cause to leak, and weld seam can also corrode.
Also, workload when welding is very big, long construction period, the pipeline that diameter long for 12 kilometers is 1.6 meters, with 12 meters every section
Spiral steel pipe splicing, scene will be done 1000 lap weldings seam in pipeline external, the requirement of rapid construction have been unable to satisfy using welding.
Summary of the invention
Technical problem to be solved by the present invention lies in: a kind of use is provided and pastes fibre reinforced composites substitution joint welding
Steel pipe pipeline connecting method, scene is easy for construction without getting angry, and is easily guaranteed that quality, pastes an appropriate number of fiber inside pipeline
Composite material, had not only been able to satisfy the demand of pressure in the longitudinally connected intensity of pipeline and pipeline use process, but also was able to satisfy waterproof and anticorrosion
Equal seal requests, have a clear superiority than current methods.
The technical problems to be solved by the invention take following technical scheme to realize:
With the steel pipe pipeline connecting method for pasting fibre reinforced composites substitution joint welding, include the following steps；
Step 1:
A) number of plies of fibre reinforced composites is calculated
The available longitudinal pulling force of weld
(1)
The available longitudinal pulling force of composite material
(2)
And(3)
The thickness of composite material
(4)
It can be obtained by formula (1)-(4)
Need the number of plies of composite material(5)
B) the anchorage length L of specific glass fibrous composite and original pipeline is calculated0
The shearing resistance of composite material and former pipeline bonding(6)
(7)
It can be obtained by formula (1) and formula (6)-(7)
The unilateral anchorage length of composite material and former pipeline
(8)
Wherein, the meaning of each parameter are as follows:
Step 2: fibre reinforced composites are decided according to the thickness and length calculated in step 1, and are soaked with epoxide-resin glue
Stain, ready for use；
Step 3: after coupling socket joint, paste area is formed to cleaning polishing is carried out at coupling；
Step 4: levelling with levelling glue slope at the height difference position that steel tube plug plug division is formed；
Step 5: fibre reinforced composites obtained in step 2 are being taken, are being pasted in paste area.
As preferred embodiment, the surface density of the fibre reinforced composites of selection is 900g/m2-1050 g/m2。
The beneficial effects of the present invention are: construction site is without getting angry, and it is easy for construction, it is easily guaranteed that quality, pipeline viscous
An appropriate number of fibrous composite is pasted, the demand of pressure in the longitudinally connected intensity of pipeline and pipeline use process has both been able to satisfy,
It is able to satisfy the seal requests such as waterproof and anticorrosion again, has a clear superiority than current methods；To required fibre reinforced composites
Length and thickness carry out quantitatively calibrating, determine optimum length and thickness, can be avoided material again while ensuring intensity
Waste.
Detailed description of the invention
Fig. 1 is implementation figure of the invention.
Specific embodiment
In order to be easy to understand to technical means, creative features, achievable purpose and effectiveness of the invention, below with reference to tool
Body diagram, the present invention is further explained.
As shown in Figure 1, with the steel pipe pipeline connecting method for pasting fibre reinforced composites substitution joint welding, including following step
Suddenly；
Step 1:
A) number of plies of fibre reinforced composites is calculated
The available longitudinal pulling force of weld
(1)
The available longitudinal pulling force of composite material
(2)
And(3)
The thickness of composite material
(4)
It can be obtained by formula (1)-(4)
Need the number of plies of composite material(5)
B) the anchorage length L of specific glass fibrous composite and original pipeline is calculated0
The shearing resistance of composite material and former pipeline bonding(6)
(7)
It can be obtained by formula (1) and formula (6)-(7)
The unilateral anchorage length of composite material and former pipeline
(8)
Wherein, the meaning of each parameter are as follows:
Step 2: fibre reinforced composites are decided according to the thickness and length calculated in step 1, and are soaked with epoxide-resin glue
Stain, ready for use；
Step 3: after coupling socket joint, paste area is formed to cleaning polishing is carried out at coupling；
Step 4: levelling with levelling glue slope at the height difference position that steel tube plug plug division is formed；
Step 5: fibre reinforced composites obtained in step 2 are being taken, are being pasted in paste area.
Further, the surface density of the fibre reinforced composites of selection is 900g/m2-1050 g/m2。
The so-called fibre reinforced composites of the present invention can from glass fiber compound material, carbon fiber, aramid fiber or its
He chooses in equivalent, voluntarily chooses according to easness is obtained with construction cost.
Lower is using the Specific construction mode after a kind of glass fiber compound material
Firstly, carrying out performance index determining (if it is the material of purchase, then directly acquiring corresponding parameter) to selected material
Following table is the calculated value (simultaneous formula 1-8) of each parameter when pasting steel pipe with glass fiber compound material
In above-mentioned case, calculated thickness 5.86mm, needing the number of plies is 5.86/1.3=4.5 layer, it is contemplated that decimal can not be got,
Therefore needing the number of plies is 5 layers of as 6.5mm thickness.
Provided method through the invention, construction site is easy for construction without getting angry, and is easily guaranteed that quality, in pipeline
An appropriate number of fibrous composite is pasted in portion, has both been able to satisfy the need of pressure in the longitudinally connected intensity of pipeline and pipeline use process
It asks, and is able to satisfy the seal requests such as waterproof and anticorrosion, have a clear superiority than current methods；To required fibre reinforced composites
Length and thickness carry out quantitatively calibrating, determine optimum length and thickness, can be avoided material again while ensuring intensity
Material waste.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, without departing from the spirit and scope of the present invention, this hair
Bright to will also have various changes and improvements, these changes and improvements are both fallen in the scope of protection of present invention.The present invention claims
Protection scope is defined by the appending claims and its equivalent thereof.
Claims (2)
1. with the steel pipe pipeline connecting method for pasting fibre reinforced composites substitution joint welding, it is characterised in that: include the following steps；
Step 1:
A) number of plies of fibre reinforced composites is calculated
(1)
The available longitudinal pulling force of composite material
(2)
And(3)
The thickness of composite material
(4)
It can be obtained by formula (1)-(4)
Need the number of plies of composite material(5)
B) the anchorage length L of specific glass fibrous composite and original pipeline is calculated0
The shearing resistance of composite material and former pipeline bonding(6)
(7)
It can be obtained by formula (1) and formula (6)-(7)
The unilateral anchorage length of composite material and former pipeline
(8)
Wherein, the meaning of each parameter are as follows:
Step 2: fibre reinforced composites are decided according to the thickness and length calculated in step 1, and are soaked with epoxide-resin glue
Stain, ready for use；
Step 3: after coupling socket joint, paste area is formed to cleaning polishing is carried out at coupling；
Step 4: levelling with levelling glue slope at the height difference position that steel tube plug plug division is formed；
Step 5: fibre reinforced composites obtained in step 2 are being taken, are being pasted in paste area.
2. the steel pipe pipeline connecting method according to claim 1 for pasting fibre reinforced composites substitution joint welding, special
Sign is: the surface density of the fibre reinforced composites of selection is 900g/m2-1050 g/m2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910138012.3A CN109798403B (en) | 2019-02-25 | 2019-02-25 | Steel pipe connecting method using adhesive glass fiber composite material to replace lap welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910138012.3A CN109798403B (en) | 2019-02-25 | 2019-02-25 | Steel pipe connecting method using adhesive glass fiber composite material to replace lap welding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109798403A true CN109798403A (en) | 2019-05-24 |
| CN109798403B CN109798403B (en) | 2020-10-09 |
Family
ID=66562164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910138012.3A Active CN109798403B (en) | 2019-02-25 | 2019-02-25 | Steel pipe connecting method using adhesive glass fiber composite material to replace lap welding |
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| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554484A (en) * | 2012-01-11 | 2012-07-11 | 阮继成 | Metal pipe welding method and metal pipe welding assembly |
| CN202660148U (en) * | 2012-06-16 | 2013-01-09 | 上海久坚加固工程有限公司 | Pipeline repaired and reinforced by fiber composite cloth |
| RU2522739C1 (en) * | 2013-04-15 | 2014-07-20 | Общество с ограниченной ответственностью "Инженерно-производственный центр" | Corrosion protection method for weld joint of pipes with inner coating at pipeline construction |
| RU2526408C1 (en) * | 2013-04-15 | 2014-08-20 | Общество с ограниченной ответственностью "Инженерно-производственный центр" | Method to build pipeline from pipes with internal coating |
| CN107504318A (en) * | 2017-08-23 | 2017-12-22 | 上海久坚加固科技股份有限公司 | A kind of method that fiber cloth composite repair reinforces the circular big pipeline in underground |
-
2019
- 2019-02-25 CN CN201910138012.3A patent/CN109798403B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554484A (en) * | 2012-01-11 | 2012-07-11 | 阮继成 | Metal pipe welding method and metal pipe welding assembly |
| CN202660148U (en) * | 2012-06-16 | 2013-01-09 | 上海久坚加固工程有限公司 | Pipeline repaired and reinforced by fiber composite cloth |
| RU2522739C1 (en) * | 2013-04-15 | 2014-07-20 | Общество с ограниченной ответственностью "Инженерно-производственный центр" | Corrosion protection method for weld joint of pipes with inner coating at pipeline construction |
| RU2526408C1 (en) * | 2013-04-15 | 2014-08-20 | Общество с ограниченной ответственностью "Инженерно-производственный центр" | Method to build pipeline from pipes with internal coating |
| CN107504318A (en) * | 2017-08-23 | 2017-12-22 | 上海久坚加固科技股份有限公司 | A kind of method that fiber cloth composite repair reinforces the circular big pipeline in underground |
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| Publication number | Publication date |
|---|---|
| CN109798403B (en) | 2020-10-09 |
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