CN200989494Y - Internal and external plastic-coated water supply buried steel pipe - Google Patents
Internal and external plastic-coated water supply buried steel pipe Download PDFInfo
- Publication number
- CN200989494Y CN200989494Y CN 200620140927 CN200620140927U CN200989494Y CN 200989494 Y CN200989494 Y CN 200989494Y CN 200620140927 CN200620140927 CN 200620140927 CN 200620140927 U CN200620140927 U CN 200620140927U CN 200989494 Y CN200989494 Y CN 200989494Y
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- water supply
- buried steel
- coated
- utility
- 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
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Abstract
The utility model relates to an inside and outside plastic-coated water supply buried steel pipe and the technology problem solved by the utility model is to provide an inside and outside plastic-coated water supply buried steel pipe that has a simple structure, convenient production and good corrosion resistance as well as can guarantee the quality of the inside drinking water. The technology scheme to solve the problem is that: inside and outside plastic-coated water supply buried steel pipe has a steel pipe whose outer wall is coated with an epoxy layer and the inner wall with a polyethylene layer. The utility model is applicable to transporting drinking water for people in small cities and towns.
Description
Technical field
The utility model relates to a kind of inside and outside plastic-coated feedwater buried steel pipe, is mainly used in the conveying of people's potable water in the sub-district, cities and towns.
Background technique
At present, be used to carry the pipeline of potable water to be to use general steel pipe or PVC hard plastic tube mostly, but for steel pipe, its outside is corroded easily, thereby shortened working life, and corrosion phenomena also takes place in its inside easily, cause the pollution of potable water, and general processing method is done preservative treatment exactly respectively in addition on the steel pipe inside and outside wall at present, has increased process step and cost; For the PVC hard plastic tube, intensity is big not as steel pipe, service time of a specified duration can embrittlement, frangible, and the PVC material is also bigger to the pollution of environment, cost recovery is higher.
Summary of the invention
The technical problems to be solved in the utility model is: at the problem of above-mentioned existence provide a kind of simple in structure, easily manufactured, corrosion resistance is good, and can guarantee the inside and outside plastic-coated feedwater buried steel pipe of its inner drinking water quality.
The technological scheme that the utility model adopted is: inside and outside plastic-coated feedwater buried steel pipe, have steel pipe, and it is characterized in that: spray epoxy layer on the described outer wall of steel pipe, inner-wall spraying polyethylene layer.
The beneficial effects of the utility model are: be coated with one deck epoxy resin on the outer wall of the present utility model, make the decay resistance of steel pipe improve greatly, and do not need to do in addition preservative treatment, saved a large amount of manpower and materials and engineering cost, and prolonged working life; Be coated with layer of polyethylene on the inwall, increased the toughness of steel pipe, also can guarantee the water quality of potable water simultaneously.
Description of drawings
Fig. 1 is a main sectional view of the present utility model.
Embodiment
As shown in Figure 1, present embodiment has steel pipe 1, its inventive point is spray epoxy layer (EP) on the outer wall of steel pipe, inner-wall spraying polyethylene layer (PE), and this epoxy resin layer has splendid decay resistance, can directly make buried steel pipe uses, and do not need to do in addition preservative treatment, saved a large amount of manpower and materials and engineering cost, in addition, EP layer ageing-resistant performance is strong, thereby has prolonged its working life; The polyethylene layer 2 of steel pipe 1 inner-wall spraying has avirulent, advantage such as anticorrosive, anti-aging, can effectively guarantee the water quality of its inner potable water.
Epoxy resin layer 2 corrosion resistances that spray on steel pipe 1 outer wall in this example are outstanding, good stability, applied widely, not only have characteristics such as closely knit, anti-water, anti-leakage are good, intensity height, have favorable manufacturability such as strong adhesion, normal-temperature operation, easy construction simultaneously, and moderate, manufacture cost is not high yet; In addition, its fungus resistance is strong, can use under the hot conditions of harshness.
The polyethylene odorless of steel pipe 1 inner-wall spraying, nontoxic, to human body without any murder by poisoning, have good resistance to low temperature (minimum serviceability temperature can reach-70～-100 ℃), chemical stability is good, the erosion of the most of soda acids of ability (not anti-acid with oxidizing property), be insoluble to common solvent under the normal temperature, moisture absorption is little, and electrical insulation capability is good, and Security is good; But polyethylene is very sensitive for environmental stress (chemistry and mechanism), and heat-resistant aging is poor, but what flow in carrying the conveyance conduit of drinking water using is the tap water of normal temperature, so we also need not to worry the shortcoming of its heat-resistant aging difference.
Claims (1)
1, a kind of inside and outside plastic-coated feedwater buried steel pipe has steel pipe (1), it is characterized in that: spray epoxy layer (2) on described steel pipe (1) outer wall, inner-wall spraying polyethylene layer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620140927 CN200989494Y (en) | 2006-12-08 | 2006-12-08 | Internal and external plastic-coated water supply buried steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620140927 CN200989494Y (en) | 2006-12-08 | 2006-12-08 | Internal and external plastic-coated water supply buried steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200989494Y true CN200989494Y (en) | 2007-12-12 |
Family
ID=38940532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620140927 Expired - Fee Related CN200989494Y (en) | 2006-12-08 | 2006-12-08 | Internal and external plastic-coated water supply buried steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200989494Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679050A (en) * | 2012-05-23 | 2012-09-19 | 江苏鑫丰塑业有限公司 | Plastic coated steel pipe |
| CN108692134A (en) * | 2018-07-06 | 2018-10-23 | 何敏 | Double corrosion-proof plastic-coated multiple tubes and its one-shot forming technique inside and outside one kind |
-
2006
- 2006-12-08 CN CN 200620140927 patent/CN200989494Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679050A (en) * | 2012-05-23 | 2012-09-19 | 江苏鑫丰塑业有限公司 | Plastic coated steel pipe |
| CN108692134A (en) * | 2018-07-06 | 2018-10-23 | 何敏 | Double corrosion-proof plastic-coated multiple tubes and its one-shot forming technique inside and outside one kind |
| CN108692134B (en) * | 2018-07-06 | 2023-09-26 | 辽宁凌勃防腐工程科技有限公司 | Internal and external double-corrosion-resistant plastic-coated composite pipe and one-step forming process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANG JUAN Free format text: FORMER OWNER: JIANG YICHUAN Effective date: 20100525 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100525 Address after: Hangzhou City, Zhejiang province 310008 Shangcheng District Brahma Temple Road No. 98 Patentee after: Jiang Juan Address before: Hangzhou City, Zhejiang province 310008 Shangcheng District Brahma Temple Road No. 98 Patentee before: Jiang Yichuan |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071212 Termination date: 20141208 |
|
| EXPY | Termination of patent right or utility model |