CN201166205Y - Concrete mortar external lining prestress steel tube - Google Patents
Concrete mortar external lining prestress steel tube Download PDFInfo
- Publication number
- CN201166205Y CN201166205Y CNU2008200737662U CN200820073766U CN201166205Y CN 201166205 Y CN201166205 Y CN 201166205Y CN U2008200737662 U CNU2008200737662 U CN U2008200737662U CN 200820073766 U CN200820073766 U CN 200820073766U CN 201166205 Y CN201166205 Y CN 201166205Y
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- steel
- wall
- lining
- pipe
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 65
- 239000010959 steel Substances 0.000 title claims abstract description 65
- 239000004570 mortar (masonry) Substances 0.000 title 1
- 239000011083 cement mortar Substances 0.000 claims description 18
- 239000011241 protective layer Substances 0.000 claims description 10
- 230000002787 reinforcement Effects 0.000 claims description 8
- 239000010410 layer Substances 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 5
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 230000002421 anti-septic effect Effects 0.000 abstract description 5
- 239000004568 cement Substances 0.000 abstract 4
- 239000002002 slurry Substances 0.000 abstract 4
- 238000010276 construction Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model relates to a cement slurry outer-lining prestressed steel pipe, which is composed of a pipe body and an inside lining layer of the inner wall of the pipe body, wherein a cement slurry protection layer is fixedly installed on the outer wall of the pipe body coaxially and a prestressed steel wire is wrapped on the outer wall of the pipe body in the protection layer. The cement slurry outer-lining prestressed steel pipe has simple structure, scientific and reasonable design, thinner steel jacking pipe wall, less steel consumption, lower cost and longer service life, and is the cement slurry outer-lining prestressed steel pipe with higher antiseptic property.
Description
Technical field
The utility model relates to steel pipe, especially a kind of cement mortar external lining 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 make, 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, 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 there are the following problems: 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. the water pipe precaution layer is generally steel pipe coated inner wall corrosion resistant, high-abrasive material at present, and its antiseptic property is relatively poor, directly causes steel pipe shorter working life, has 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 a large amount 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 purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of simple in structure, and design science is reasonable, and tube wall is thinner, and steel using amount is less, and cost is low, long service life and have the cement mortar external lining prestress steel pipe of higher antiseptic property.
The utility model solves its technical problem and is achieved through the following technical solutions:
A kind of cement mortar external lining prestress steel pipe is made of the inside liner of body and inboard wall of tube body, and wherein the coaxial cement mortar protective course that is fixed with on tube wall is wound with reinforcement wire on the tube wall in protective layer.
And the reinforcement wire that twines on the tube wall in the described protective layer is the 1-3 layer.
And described inside liner is polyurethane or glass fibre reinforced plastics.
Advantage of the present utility model and beneficial effect are:
1. this cement mortar external lining prestress steel pipe is at the coaxial cement mortar protective course that is fixed with of this tube wall; be wound with reinforcement wire on the tube wall in cement mortar protective course; under same operating conditions; this steel pipe walls is thinner; be about 2/5 of common steel tube steel using amount,, saved the cost of raw material greatly in today that iron and steel price order benefit increases; 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 cement mortar external lining 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 the steel pipe walls attenuation, alleviate the weight of whole tubing, reduce pre-stressed steel pipe integral construction cost and difficulty of construction.
This cement mortar external lining 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 steel pipe walls is thinner, the body own wt is lighter, has also improved the ability of opposing uneven settlement to a certain extent.
4. the inner wall protection layer of this cement mortar external lining prestress steel pipe is glass fibre reinforced plastics protective layer or polyurethane protective layer; the outer wall protective layer is a slush; improved the whole antiseptic property of this tubing; prolonged the working life of steel pipe; and can effectively reduce the inner-walls of duct resistance, reduce whole running cost.
5. of the present utility model simple in structure, design science is reasonable, and tube wall is thinner, and steel using amount is less, and cost is low, and long service life is a kind of cement mortar external lining prestress steel pipe with higher antiseptic property.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
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
The utility model is described in further detail below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.
A kind of cement mortar external lining prestress steel pipe; its body 2 is the steel body; at the coaxial inside liner 1 that is fixed with of the inwall of body; this inside liner adopts glass fibre reinforced plastics or polyurethane material to make; the coaxial cement mortar protective course 4 that is fixed with on tube wall wherein; be wound with reinforcement wire 3 on the tube wall in protective layer, the reinforcement wire that is twined is the 1-3 layer, and the present embodiment accompanying drawing is depicted as one deck.
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 utility model is compared saving rolled steel dosage 43.2% with common steel tube under same operating conditions.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 (3)
1. cement mortar external lining prestress steel pipe is made of the inside liner of body and inboard wall of tube body, and it is characterized in that: the coaxial cement mortar protective course that is fixed with on tube wall is wound with reinforcement wire on the tube wall in protective layer.
2. cement mortar external lining prestress steel pipe according to claim 1 is characterized in that: the reinforcement wire that twines on the tube wall in the described protective layer is the 1-3 layer.
3. cement mortar external lining prestress steel pipe according to claim 1 is characterized in that: described inside liner is polyurethane or glass fibre reinforced plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200737662U CN201166205Y (en) | 2008-01-28 | 2008-01-28 | Concrete mortar external lining prestress steel tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200737662U CN201166205Y (en) | 2008-01-28 | 2008-01-28 | Concrete mortar external lining prestress steel tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201166205Y true CN201166205Y (en) | 2008-12-17 |
Family
ID=40191593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200737662U Expired - Fee Related CN201166205Y (en) | 2008-01-28 | 2008-01-28 | Concrete mortar external lining prestress steel tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201166205Y (en) |
-
2008
- 2008-01-28 CN CNU2008200737662U patent/CN201166205Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081217 Termination date: 20120128 |