CN107695171B - A method of adding thin-wall stainless steel lining in pipeline - Google Patents
A method of adding thin-wall stainless steel lining in pipeline Download PDFInfo
- Publication number
- CN107695171B CN107695171B CN201710827270.3A CN201710827270A CN107695171B CN 107695171 B CN107695171 B CN 107695171B CN 201710827270 A CN201710827270 A CN 201710827270A CN 107695171 B CN107695171 B CN 107695171B
- Authority
- CN
- China
- Prior art keywords
- stainless steel
- support tube
- pipeline
- steel lining
- wall
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/12—Making tubes or metal hoses with helically arranged seams
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/08—Coatings characterised by the materials used by metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
- F16L9/165—Rigid pipes wound from sheets or strips, with or without reinforcement of metal
Abstract
The invention belongs to internal coat pipeline production technical fields, a kind of more particularly to method that thin-wall stainless steel lining is added in pipeline, include the following steps: step 1, the outside of support tube will be spirally wound on a thickness of the stainless steel belt of 0.2-0.3mm, and the gap soldering for the helix shape for being formed spiral winding using welding procedure, to form stainless steel lining；Step 2, support tube is sent in waiting in the pipeline of anti-corrosion processing together together with the stainless steel lining of cladding on it；Step 3, high pressure water is injected into support tube from the water inlet on support tube by pressure pump, water sprays outward by the circular hole on support tube wall, and then acts on stainless steel lining；Step 4, support tube is extracted out out of pipeline.The present invention will be extended down to 0.2-0.3mm under the lower thickness limit of stainless steel lining, not only saved stainless steel material, and be remarkably decreased the manufacturing cost of pipeline by using new equipment and new process, have significant economic benefit.
Description
Technical field
The invention belongs to internal coat pipeline production technical fields, more particularly to one kind, and thin-wall stainless steel lining is added in pipeline
The method of layer.
Background technique
Pipeline is that a kind of common pipeline, pipeline are usually made of carbon steel or cast iron in municipal works and industrial production, is
Inner wall of the pipe is avoided to be damaged by dielectric corrosion, it usually needs to carry out preservative treatment to the inner wall of pipeline.It is added not in pipeline
Rust steel backing layer is a kind of novel pipeline corrosion protection technique, but there are obvious shortcomings in prior art:
In prior art, when adding stainless steel inner lining into pipeline, it is necessary first to be made matched not with internal diameter of the pipeline
Become rusty steel pipe, and then stainless steel tube is directly inserted in pipeline, and when the wall thickness of stainless steel tube is too small, stainless steel tube can be in inserting
Deformation, exactly because this reason, in prior art, the minimum limit value of the thickness of stainless steel lining can only accomplish 0.8mm, but
In fact, the stainless steel of 0.2-0.3mm thickness can fully ensure that the antiseptic property of stainless steel lining.Therefore, prior art disappears
The stainless steel amount of consumption is larger, not only wastes material, and keeps the manufacturing cost of pipeline high.
Summary of the invention
The present invention provides a kind of method that thin-wall stainless steel lining is added in pipeline, to solve to mention in above-mentioned background technique
Out the problem of.
Technical problem solved by the invention is realized using following technical scheme: the present invention provides one kind and adds in pipeline
The method for adding thin-wall stainless steel lining, includes the following steps:
Step 1, the outside of support tube will be spirally wound on a thickness of the stainless steel belt of 0.2-0.3mm, and using welding
The gap soldering for the helix shape that technique forms spiral winding, to form stainless steel lining, the support tube is two
Hold closed circular tube structure, one end of support tube is evenly distributed with circular hole on the tube wall of support tube there are water inlet；
Step 2, support tube is sent to the pipeline of the anti-corrosion processing in waiting together together with the stainless steel lining of cladding on it
In, after sending into pipeline, the gap between stainless steel lining and inner wall of the pipe is 2-5mm；
Step 3, high pressure water, water pressure 1.5- are injected into support tube from the water inlet on support tube by pressure pump
2.5MPa, water sprays outward by the circular hole on support tube wall, and then acts on stainless steel lining, and stainless steel lining is in water
Extend under the action of pressure, is then detached from support tube；
Step 4, support tube is extracted out out of pipeline.
The circular hole spacing 10-20mm.
The invention has the benefit that the present invention is by using new equipment and new process, it will be under the thickness of stainless steel lining
It is extended down to 0.2-0.3mm under limit, has not only saved stainless steel material, and is remarkably decreased the manufacturing cost of pipeline, has significant
Economic benefit.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the required process equipment of the present invention；
Fig. 2 is the production status figure produced using process equipment shown in FIG. 1.
In figure: 1- pressure pump, 2- support tube, 3- stainless steel belt, 4- pipeline, 5- circular hole.
Specific embodiment
The present invention is described further below in conjunction with attached drawing:
The method that the present embodiment provides a kind of to add thin-wall stainless steel lining in pipeline, specific embodiment include as follows
Step:
Step 1, the stainless steel belt 3 with a thickness of 0.2-0.3mm is spirally wound on to the outside of support tube 2, and using weldering
The gap soldering for the helix shape that technique forms spiral winding is connect, to form stainless steel lining, this step is completed the process
Afterwards, stainless steel bushing pipe is only attached on support tube 2, thus there is no because wall thickness is too small deform the problem of.Herein, stainless steel
The width of steel band 3 should not too narrow (can be 30-60cm), in order to avoid increase welding workload because the length of weld seam is too long.It is described
Support tube 2 be circular tube structure closed at both ends, one end of support tube 2 is uniformly distributed there are water inlet on the tube wall of support tube 2
There is circular hole 5.
Step 2, support tube 2 is sent to the pipeline of the anti-corrosion processing in waiting together together with the stainless steel lining of cladding on it
In 4.After sending into pipeline 4, the gap between 4 inner wall of stainless steel lining and pipeline is 2-5mm, and the purpose there are gap is to protect
Card stainless steel lining is smoothly inserted into pipeline 4 without scratching damage by the inner wall of pipeline 4.
Step 3, high pressure water is injected into support tube 2 from the water inlet on support tube 2 by pressure pump 1, water is by support
Circular hole 5 on 2 tube wall of pipe sprays outward, and then acts on stainless steel lining, and stainless steel lining extends in the presence of hydraulic pressure,
I.e. the diameter of stainless steel lining increases, to be detached from support tube 2, demoulding is realized, to extract support tube 2 out out of pipeline 4.
Since the wall thickness of stainless steel lining only has 0.2-0.3mm, the ability for resisting hydraulic pressure impact is poor, and hydraulic pressure is crossed conference and made
At the damage of stainless steel lining, hydraulic pressure is too small, and demoulding purpose is not achieved, it is therefore necessary to limit the pressure of water.Implemented
Hydraulic pressure is set as 1.5-2.5MPa in journey.
Step 4, support tube 2 is extracted out out of pipeline 4.
In fact, the mode of communicating of pressure pump 1 and circular hole 5 can there are two types of: it is high one is being injected directly into support tube 2
Water is pressed, makes water directly from the outflow of circular hole 5 (this structure it has been mentioned that) on 2 tube wall of support tube, the advantages of this structure
The pressure loss for being water is zero, the disadvantage is that keep the weight of support tube 2 larger because being full of water in support tube 2, the mobile difficulty of support tube 2
It spends larger；Another kind be by pipeline will from pressure pump 1 export outflow water lead to each circular hole, the advantage of this structure is
The weight of support tube 2 is smaller, and the mobile difficulty of support tube 2 is smaller, the disadvantage is that the pressure of water can be declined (but not serious),
Add somewhat to the load of pressure pump 1.
In the specific implementation process, need the pitch-row to circular hole 5 to claim: pitch-row is smaller, and the quantity of circular hole 5 is more,
Area of passage on 2 outer wall of support tube is also bigger, in this case, in order to guarantee the water flow of the outflow of circular hole 5 to stainless steel lining
Apply enough active forces, the flow for needing pressure pump 1 to provide is also bigger, and the load of pressure pump 1 is therefore also bigger；On the contrary, hole
Away from bigger, the area of passage on 2 outer wall of support tube is smaller, and the flow for needing pressure pump 1 to provide is smaller, the load of pressure pump 1 because
This is also smaller, but water flow can be deteriorated to the uniformity of the impetus of the active force of stainless steel lining with the increase of pitch-row.Cause
This, needs pitch-row determining that in a reasonable range, this range is exactly 10-20mm.Preferably the pitch-row of circular hole 5 is
15mm。
The present invention will be extended down to 0.2-0.3mm under the lower thickness limit of stainless steel lining, no by using new equipment and new process
But stainless steel material is saved, and has been remarkably decreased the manufacturing cost of pipeline, there is significant economic benefit.
Claims (1)
1. a kind of method for adding thin-wall stainless steel lining in pipeline, it is characterised in that include the following steps:
Step 1, the outside of support tube (2) will be spirally wound on a thickness of the stainless steel belt of 0.2-0.3mm (3), and using weldering
The gap soldering for the helix shape that technique forms spiral winding is connect, so that stainless steel lining is formed, the support tube (2)
For circular tube structure closed at both ends, one end of support tube (2) is evenly distributed with circle on the tube wall of support tube (2) there are water inlet
Hole (5)；
Step 2, support tube (2) is sent to the pipeline of the anti-corrosion processing in waiting together together with the stainless steel lining of cladding on it
(4) in, after sending into pipeline (4), the gap between stainless steel lining and pipeline (4) inner wall is 2-5mm；
Step 3, high pressure water is injected into support tube (2) from the water inlet on support tube (2) by pressure pump (1), water pressure is
1.5-2.5MPa, water sprays outward by the circular hole (5) on support tube (2) tube wall, and then acts on stainless steel lining, stainless
Steel backing layer extends in the presence of hydraulic pressure, is then detached from support tube (2)；
Step 4, the extraction out of pipeline (4) by support tube (2)；Described circular hole (5) the spacing 10-20mm；
Each circular hole will be led to by pipeline from the water of pressure pump (1) outlet outflow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710827270.3A CN107695171B (en) | 2017-09-14 | 2017-09-14 | A method of adding thin-wall stainless steel lining in pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710827270.3A CN107695171B (en) | 2017-09-14 | 2017-09-14 | A method of adding thin-wall stainless steel lining in pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107695171A CN107695171A (en) | 2018-02-16 |
| CN107695171B true CN107695171B (en) | 2019-02-26 |
Family
ID=61171725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710827270.3A Active CN107695171B (en) | 2017-09-14 | 2017-09-14 | A method of adding thin-wall stainless steel lining in pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107695171B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2431062Y (en) * | 2000-06-07 | 2001-05-23 | 中国航天科技集团公司第四研究院第四十一所 | Hydraulic lining device for metal pipeline |
| CN1429700A (en) * | 2001-12-29 | 2003-07-16 | 张宝军 | Manufacturing method of anti-corrosive pipe with lining |
| CN101403450A (en) * | 2007-10-02 | 2009-04-08 | 特纳瑞斯盘管有限公司 | Method of manufacturing lined tubing |
| CN102059739A (en) * | 2009-11-13 | 2011-05-18 | 天津市泽宝水泥制品有限公司 | Production process of lining-type anti-corrosion reinforced concrete pipe |
| CN106352168A (en) * | 2016-08-30 | 2017-01-25 | 周茂振 | Corrosion-resistant lining pipe for composite pipe and production method and equipment of corrosion-resistant lining pipe |
-
2017
- 2017-09-14 CN CN201710827270.3A patent/CN107695171B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2431062Y (en) * | 2000-06-07 | 2001-05-23 | 中国航天科技集团公司第四研究院第四十一所 | Hydraulic lining device for metal pipeline |
| CN1429700A (en) * | 2001-12-29 | 2003-07-16 | 张宝军 | Manufacturing method of anti-corrosive pipe with lining |
| CN101403450A (en) * | 2007-10-02 | 2009-04-08 | 特纳瑞斯盘管有限公司 | Method of manufacturing lined tubing |
| CN102059739A (en) * | 2009-11-13 | 2011-05-18 | 天津市泽宝水泥制品有限公司 | Production process of lining-type anti-corrosion reinforced concrete pipe |
| CN106352168A (en) * | 2016-08-30 | 2017-01-25 | 周茂振 | Corrosion-resistant lining pipe for composite pipe and production method and equipment of corrosion-resistant lining pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107695171A (en) | 2018-02-16 |
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