CN101498388B - Inner lining concrete prestress steel pipe - Google Patents
Inner lining concrete prestress steel pipe Download PDFInfo
- Publication number
- CN101498388B CN101498388B CN200810052179XA CN200810052179A CN101498388B CN 101498388 B CN101498388 B CN 101498388B CN 200810052179X A CN200810052179X A CN 200810052179XA CN 200810052179 A CN200810052179 A CN 200810052179A CN 101498388 B CN101498388 B CN 101498388B
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- steel
- wall
- inner lining
- protective layer
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The invention relates to a concrete internally-lined prestressed steel pipe which includes a pipe body and a protection layer of the pipe body outer wall. Prestresssed steel wires are wound on the pipe body outer wall in the protection layer; and the inner wall of the pipe body is coaxially and fixedly provided with a concrete lining layer. The invention has simple structure, scientific and reasonable design, thin steel pipe wall, little steel consumption and low cost, and is one concrete internally-lined prestressed steel pipe with long service life and high corrosion prevention performance.
Description
Technical field
The present invention relates to steel pipe, especially a kind of inner lining concrete prestress steel pipe.
Background technique
Steel pipe generally be applied in geographical environment do not allow to slot operation, construction environment require noise less traffic is not exerted an influence or the situation of the easy sedimentation in ground under.The steel pipe that is used for the discharge pressure fluid at present mainly adopts the steel plate of L175-L555 level (tensile strength is 175-555MPa) welding to process; Because the yield strength of these common irons is lower; So when making the high steel pipe of compressive strength, the tube wall design of steel pipe is very thick.Pipeline with DN1800 is an example, and operating conditions is: working pressure 0.6MPa, thickness of earth-fill cover 2m; The required steel plate thickness of common steel tube is at least 14mm; Every linear meter(lin.m.) pipe line steel material use quantity is 695Kg, though the steel pipe pipe thickness increases the purpose that can satisfy the discharge pressure fluid, but has following problem: 1. steel pipe tube wall thickening; The steel using amount that causes producing every steel pipe strengthens, and the cost of raw material raises; 2. steel pipe tube wall thickening causes steel pipe weight to strengthen, and the difficulty of transportation and construction strengthens; 3. outer wall of steel pipe is provided with thermal insulation layer and protective layer at present; Thermal insulation layer generally adopts polyurethane foaming or silicate and other thermal insulating material, and protective layer generally adopts materials such as plastic tube or glass fibre reinforced plastics, and its antiseptic property is relatively poor; Directly cause steel pipe shorter working life, improved the cost of changing; Steel belong to highly energy-consuming, maximum discharge product in addition, and the increasing of use amount can cause the consumption of lot of consumption, the especially non-renewable resources of the energy, and do not meet the environmental protection policy of the energy-saving and emission-reduction that country advocates.
Summary of the invention
The objective of the invention is to overcome the deficiency of existing technology, provide a kind of simple in structure, design science is reasonable, and steel pipe walls is thinner, and steel using amount is less, and cost is lower, grows and have the inner lining concrete prestress steel pipe of higher antiseptic property working life.
The present invention solves its technical problem and realizes through following technological scheme:
A kind of inner lining concrete prestress steel pipe is made up of the protective layer of body and tube wall, wherein is wound with reinforcement wire on the tube wall in protective layer, the coaxial concrete lining layer that is fixed with of inboard wall of tube body.
And the reinforcement wire that twines on the tube wall in the described protective layer is the 1-3 layer.
And the protective layer of described tube wall is glass fibre reinforced plastics or polyurethane.
Advantage of the present invention and beneficial effect are:
1. this inner lining concrete prestress steel pipe is wound with reinforcement wire in the protective layer of this tube wall; Under same operating conditions, this steel pipe walls is thinner, is about 2/5 of common steel tube steel using amount; In iron and steel price growing today; Practiced thrift the cost of raw material greatly, improved economic benefit, and the use amount that reduces highly energy-consuming, maximum discharge product meets the environmental protection policy of the energy-saving and emission-reduction that country advocates.
2. this inner lining concrete prestress steel pipe pipe outer wall is wound with reinforcement wire; Strengthen whole tubing greatly and resisted the ability of external pressure earthing and internal water pressure; Under equal external pressure earthing and internal water pressure situation; Make whole steel pipe walls attenuation, alleviate the weight of whole tubing, reduce pre-stressed steel pipe integral construction cost and difficulty of construction.
This inner lining concrete prestress steel pipe extend protective layer the body two ends except can connecting with welding, can also coaxially respectively install steel bell and spigot or flange, constructing operation is easy; Because this tube material and tube wall is thinner, the body own wt is lighter, has also improved the ability of opposing uneven settlement to a certain extent.
4. the outer wall protective layer of this inner lining concrete prestress steel pipe is respectively glass fibre reinforced plastics protective layer or polyurethane protective layer; Inwall is a concrete cover; Improved the whole antiseptic property of this tubing; Prolong the working life of steel pipe, and can effectively reduce the inner-walls of duct resistance, reduced whole running cost.
5. the present invention is simple in structure, and design science is reasonable, and steel pipe walls is thinner, and steel using amount is less, and cost is lower, is the inner lining concrete prestress steel pipe of growing and having higher antiseptic property a kind of working life.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is that the A-A of Fig. 1 is to the cross section enlarged view;
Fig. 3 is that the B-B of Fig. 1 is to the cross section enlarged view.
Embodiment
Through specific embodiment the present invention is made further detailed description below, following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
A kind of inner lining concrete prestress steel pipe, its body 2 is the steel body, at the coaxial protective layer 4 that is fixed with of the outer wall of body, this protective layer adopts polyurethane or glass fibre reinforced plastics.The present embodiment protective layer adopts glass fibre reinforced plastics; Wherein be wound with reinforcement wire 3 on the tube wall of this in protective layer; The reinforcement wire that is twined is the 1-3 layer; The present embodiment accompanying drawing is depicted as one deck, and at the coaxial inside liner 1 that is fixed with of the inwall of body, this inside liner adopts cement mortar material to be made;
In the present embodiment, be the extension part 5 of body at the body two ends of extending protective layer and inside liner, this extension part is used for coaxial steel bell and spigot or the flange of installing to realize the connection between the tubing.
The present invention under same operating conditions with common steel tube savings in comparison rolled steel dosage 43.2%.Steel pipe with DN1800mm is that example is specifically narrated below:
Operating conditions is: working pressure 0.6MPa, thickness of earth-fill cover 2m;
The required steel plate thickness of common steel tube is 14mm at least, and every linear meter(lin.m.) pipe line steel material use quantity is 695Kg;
The steel plate thickness of pre-stressed steel pipe is 6mm at the most, and it is 1570MPa φ 5 steel wires that steel wire adopts tensile strength, is that 10mm is wrapped in outer wall of steel pipe with pitch, twines one deck, and rolled steel dosage is: steel plate 297Kg, steel wire 98Kg amounts to 395Kg.
Claims (2)
1. inner lining concrete prestress steel pipe; Protective layer by body and tube wall constitutes; It is characterized in that: be wound with reinforcement wire on the tube wall in protective layer, reinforcement wire is the 1-3 layer, the coaxial concrete lining layer that is fixed with of inboard wall of tube body.
2. inner lining concrete prestress steel pipe according to claim 1 is characterized in that: the protective layer of described tube wall is glass fibre reinforced plastics or polyurethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810052179XA CN101498388B (en) | 2008-01-28 | 2008-01-28 | Inner lining concrete prestress steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810052179XA CN101498388B (en) | 2008-01-28 | 2008-01-28 | Inner lining concrete prestress steel pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101498388A CN101498388A (en) | 2009-08-05 |
| CN101498388B true CN101498388B (en) | 2012-01-04 |
Family
ID=40945590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810052179XA Expired - Fee Related CN101498388B (en) | 2008-01-28 | 2008-01-28 | Inner lining concrete prestress steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101498388B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994285B (en) * | 2014-06-09 | 2016-05-25 | 宁夏青龙管业股份有限公司 | Pipe of concrete |
| CN108953781A (en) * | 2018-10-12 | 2018-12-07 | 宁夏青龙管业股份有限公司 | A kind of reinforcing bar winding steel cylinder pressure pipe and aqueduct |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2060196U (en) * | 1989-11-20 | 1990-08-08 | 南京市水泥制管厂 | Prestressed steel pipe concrete pressure pipe |
| CN2469291Y (en) * | 2001-04-13 | 2002-01-02 | 衡水泰昌预应力有限公司 | Large diameter prestress concrete water pipe |
| CN2614301Y (en) * | 2003-04-30 | 2004-05-05 | 张乾光 | Stainless steel and glass reinforced plastic multiple-unit tube |
| CN2733142Y (en) * | 2004-10-22 | 2005-10-12 | 付定胜 | Screw-type polyurethane rubber-lined pipe |
-
2008
- 2008-01-28 CN CN200810052179XA patent/CN101498388B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2060196U (en) * | 1989-11-20 | 1990-08-08 | 南京市水泥制管厂 | Prestressed steel pipe concrete pressure pipe |
| CN2469291Y (en) * | 2001-04-13 | 2002-01-02 | 衡水泰昌预应力有限公司 | Large diameter prestress concrete water pipe |
| CN2614301Y (en) * | 2003-04-30 | 2004-05-05 | 张乾光 | Stainless steel and glass reinforced plastic multiple-unit tube |
| CN2733142Y (en) * | 2004-10-22 | 2005-10-12 | 付定胜 | Screw-type polyurethane rubber-lined pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101498388A (en) | 2009-08-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101498388B (en) | Inner lining concrete prestress steel pipe | |
| CN201339767Y (en) | Large prestressed spiral rib steel pipe | |
| CN201202898Y (en) | Ultrathin steel faucet prestress steel cylinder steel fiber reinforced concrete tube | |
| CN201166204Y (en) | Inner lining concrete prestress steel tube | |
| CN101354099A (en) | Plastic inner lining barrel faucet prestress glass fiber reinforced plastic concrete pipe | |
| CN101498384B (en) | Prestress steel pipe | |
| CN201166199Y (en) | Prestress steel tube | |
| CN101498389A (en) | Cement mortar external lining prestress steel pipe | |
| CN201166203Y (en) | Concrete mortar external lining prestress steel jacking tube | |
| CN201166202Y (en) | Inner lining concrete prestress steel jacking tube | |
| CN201166205Y (en) | Concrete mortar external lining prestress steel tube | |
| CN201166198Y (en) | Prestress steel jacking tube | |
| CN101660632B (en) | Prestressed large-scale ribbed steel pipe | |
| CN101749490B (en) | Prestressing large-scale spiral fin steel tube | |
| CN201259032Y (en) | Pre-stress large-sized steel tube with rib | |
| CN101592270A (en) | Ultrathin steel-socket prestress longitudinal bar steel-fiber concrete pipe | |
| CN201096233Y (en) | Longitudinal rib prestressing force steel cylinder concrete pipe | |
| CN101592269A (en) | Ultrathin steel-socket prestress steel-cylinder steel-fiber concrete pipe | |
| CN101344196B (en) | Pre-stress glass fibre reinforced plastic concrete pipe with steel faucet | |
| CN201074708Y (en) | Glass fiber reinforced plastics outer canopy guard pipe | |
| CN201066000Y (en) | Steel faucet prestressed glass reinforced plastic externally protected concrete tube | |
| CN201772157U (en) | High pressure-resistant reinforced concrete and glass fiber reinforced plastics composite pipe | |
| CN101639139B (en) | Prestress thin wall high-pressure steel pipe | |
| CN101349368B (en) | Prestressed reinforced concrete pipe built-in with plastic sleeve faucet | |
| CN201196308Y (en) | Precast pre-stress concrete pipe gallery with edge rounding |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TIANJIN WANLIAN PIPE TECHNOLOGY DEVELOPMENT CO., L Free format text: FORMER OWNER: TIANJIN WATERLINE PIPELINE ENGINEERING CO., LTD. Effective date: 20150722 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150722 Address after: 323, room 8, -12, 301700 Fumin Road, Tianjin, Wuqing district (central office area) Patentee after: Tianjin Wanlian Pipeline Technology Development Co. Ltd. Address before: 300170 Fumin Economic Zone, Wuqing District, Tianjin Patentee before: Tianjin Waterline Pipeline Engineering Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20170128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |