CN206175834U - Nodular cast -iron pipe is used in feedwater - Google Patents
Nodular cast -iron pipe is used in feedwater Download PDFInfo
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- CN206175834U CN206175834U CN201621079347.0U CN201621079347U CN206175834U CN 206175834 U CN206175834 U CN 206175834U CN 201621079347 U CN201621079347 U CN 201621079347U CN 206175834 U CN206175834 U CN 206175834U
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- iron pipe
- cast iron
- feedwater
- cast
- outside
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Abstract
The utility model provides a nodular cast -iron pipe is used in feedwater, including cast iron pipe, setting at inboard plastic inner liner and the polyethylene protective sheath of cover in the cast iron pipe outside of cast iron pipe, the cast iron pipe outside plated the galvanizing coat, the galvanizing coat outside covers there is the modified asphalt layer, the polyethylene protect protection sleeve surface and be provided with a series of recesses that are arranged in the adsorbed water suspended solid. The utility model discloses a nodular cast -iron pipe is used in feedwater, simple structure, notched polyethylene protective sheath is taken to cast iron pipe outside cover, through the suspended solid in the adsorbed water, reduces rivers to the erosion of cast iron pipe, the cast iron pipe surface is provided with galvanizing coat and modified asphalt layer, prevent to protect casing damage bad after rivers corrode the cast iron pipe.
Description
Technical field
This utility model is related to a kind of ductile iron pipe, and in particular to a kind of feedwater ductile iron pipe.
Background technology
Ductile iron pipe has the performance of the essence of ferrum, steel, and antiseptic property is excellent, ductility is good, good sealing effect, peace
Dress is simple, be mainly used in municipal administration, industrial and mining establishment feed water, gas transmission, oil transportation etc..General ductile iron pipe is with zinc protective layer
Seal up and corrosion protective covering is closed as composite protective system, this is the protective system that a kind of sacrificial anode adds cathodic protection, with anti-
The advantage of rotten year limit for length, is used widely all over the world.But, during pipe installation, hindered by river sometimes
Block, generally using the ductile iron pipe of above-mentioned protection system, bed set and crossed over riverbed, this spheroidal graphite cast-iron pipe range along the river in the past
Phase is impacted by current and sandstone, and corrosion is very fast.
The content of the invention
In order to solve the above problems, the utility model proposes a kind of feedwater ductile iron pipe.
The technical solution of the utility model is：A kind of feedwater ductile iron pipe, including cast iron pipe, be arranged in cast iron pipe
The plastic inner lining of side and the polyethylene protective case being enclosed within the outside of cast iron pipe；Zinc coat, zinc coat are coated with the outside of described cast iron pipe
Outer side covers have modified asphalt layer；Described polyethylene protective case surface is provided with a series of for adsorbing the recessed of float in water
Groove.
Further, the thickness of described zinc coat is 0.15-0.2 microns.
Further, the thickness of described modified asphalt layer is 0.3-0.5 microns.
Further, the depth of groove on described polyethylene protective case surface is 2 millimeters.
Beneficial effect
One kind feedwater ductile iron pipe of the present utility model, simple structure are cased with the outside of cast iron pipe poly- with groove
Ethylene protective case, by adsorbing the float in water, reduces erosion of the current to cast iron pipe, and surface of cast iron is provided with zinc coat
And modified asphalt layer, after preventing protective case from damaging, current are corroded to cast iron pipe.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure, 1- plastic inner linings, 2- cast iron pipes, 3- zinc coats, 4- modified asphalt layers, 5- polyethylene protective cases.
Specific embodiment
Below in conjunction with the accompanying drawings a kind of feedwater of the present utility model is elaborated with ductile iron pipe.
As shown in figure 1, a kind of feedwater ductile iron pipe, including in cast iron pipe 2, the plastics that are arranged on the inside of cast iron pipe 2
Lining 1 and the polyethylene protective case 5 being enclosed within the outside of cast iron pipe 2；Zinc coat 3 is coated with the outside of described cast iron pipe 2, on the outside of zinc coat 3
It is coated with modified asphalt layer 4；Described 5 surface of polyethylene protective case is provided with a series of for adsorbing the recessed of float in water
Groove；The thickness of described zinc coat 3 is 0.15-0.2 microns；The thickness of described modified asphalt layer 4 is 0.3-0.5 microns；Institute
The depth of groove on 5 surface of polyethylene protective case stated is 2 millimeters.
The above, is only preferred embodiment of the present utility model, not makees any formal to this utility model
Restriction, although this utility model is disclosed above with preferred embodiment, but is not limited to this utility model, any ripe
Professional and technical personnel is known, in the range of without departing from technical solutions of the utility model, when in the technology using the disclosure above
Appearance is made a little change or is modified to the Equivalent embodiments of equivalent variations, as long as without departing from technical solutions of the utility model
Hold, any simple modification, equivalent variations and modification above example made according to technical spirit of the present utility model, still
Belong in the range of technical solutions of the utility model.
Claims (4)
1. a kind of feedwater ductile iron pipe, it is characterised in that：Including cast iron pipe, the plastic inner lining being arranged on the inside of cast iron pipe and
The polyethylene protective case being enclosed within the outside of cast iron pipe；Zinc coat is coated with the outside of described cast iron pipe, zinc coat outer side covers have modified
Bitumen layer；Described polyethylene protective case surface is provided with a series of grooves for adsorbing float in water.
2. one kind feedwater ductile iron pipe according to claim 1, it is characterised in that：The thickness of described zinc coat is
0.15-0.2 microns.
3. one kind feedwater ductile iron pipe according to claim 1, it is characterised in that：The thickness of described modified asphalt layer
Spend for 0.3-0.5 microns.
4. one kind feedwater ductile iron pipe according to claim 1, it is characterised in that：Described polyethylene protective case table
The depth of groove in face is 2 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621079347.0U CN206175834U (en) | 2016-09-26 | 2016-09-26 | Nodular cast -iron pipe is used in feedwater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621079347.0U CN206175834U (en) | 2016-09-26 | 2016-09-26 | Nodular cast -iron pipe is used in feedwater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206175834U true CN206175834U (en) | 2017-05-17 |
Family
ID=58676428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621079347.0U Active CN206175834U (en) | 2016-09-26 | 2016-09-26 | Nodular cast -iron pipe is used in feedwater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206175834U (en) |
-
2016
- 2016-09-26 CN CN201621079347.0U patent/CN206175834U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |