CN104373706A - Composite conveying high-pressure oil pipe - Google Patents
Composite conveying high-pressure oil pipe Download PDFInfo
- Publication number
- CN104373706A CN104373706A CN201410556136.0A CN201410556136A CN104373706A CN 104373706 A CN104373706 A CN 104373706A CN 201410556136 A CN201410556136 A CN 201410556136A CN 104373706 A CN104373706 A CN 104373706A
- Authority
- CN
- China
- Prior art keywords
- layer
- pressure oil
- oil pipe
- conveying high
- 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.)
- Pending
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Classifications
-
- 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
- F16L9/147—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
Abstract
The invention discloses a composite conveying high-pressure oil pipe comprising a three-layer structure. The outmost layer is a high-strength carbon steel layer and has the function of supporting the whole pipe and the inner wall of the pipe. A high-chromium iron layer is used as the inner layer. High-chromium iron is good in corrosion preventing capacity. The middle layer is a stuffing layer. The stuffing layer is made of fluoroplastic. The fluoroplastic is formed by mixing soluble polytetrafluoroethylene and para-position polyphenol. The composite conveying high-pressure oil pipe has the advantages that the three-layer structure is adopted, damage caused by abrasion of the inner wall is avoided, the safety is improved, the use reliability is high, and corrosion and impact are resisted.
Description
Technical field
The present invention relates to high pressure pipe line field, particularly relate to a kind of compound conveying high-pressure oil pipe.
Background technique
Pipeline is in transfer oil, and rock gas, chemical product have extensive use, long distance delivery, and general inner-walls of duct bears larger pressure, severe along with transportation environment, and pipeline is likely frayed, causes pipeline leakage, the serious accident consequence of cracking.
Existing multiple tube is generally two-layer compound, skin is base tube, skin bears supporting steel pipe effect, and internal layer is composite pipe, is made up of corrosion-resistant material, internal layer directly contacts with the material of conveying, because internal layer is thin-walled layer, use for a long time, due to the impact of material, internal layer inwall can be made to come off, shorten the working life of pipeline.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of compound conveying high-pressure oil pipe, can strengthen composite oil pipe working life, ensures use safety.
Described a kind of compound conveying high-pressure oil pipe comprises three-decker, and outermost surface is high strength carbon steel layer, and to pipeline, overall and inwall is played a supporting role, and in order to increase pipeline working life, described pipeline outer wall is provided with projection.
Described internal layer adopts high chromium cast iron layer, and described rich chromium cast iron has and well prevents corrosion ability, meanwhile, has very high intensity.
Described mesosphere is packing layer, and described packing layer adopts fluoroplastic composition, is mixed form by soluble poly tetrafluoroethylene and polyparaphenylene phenol.Described soluble poly tetrafluoroethylene is the fluoroplastic of newer melt-processable, and be called for short PFA, fusing point is high, and density is 2.13 grams/cc to 2.16 grams/cc, and PFA is heat-resisting, cold-resistant, chemical stability.
PPL, polyparaphenylene phenol is wear-resisting, sealing material ideal in the industries such as metallurgy, chemical industry, high life, high temperature resistant, meanwhile, polyparaphenylene good thermal stability, corrosion resistance, self-lubricating property is better than molybdenum disulfide and graphite, the molecular chain of PPL, due to very large rigidity and regularity, makes it cannot not be molten insoluble, self machine shaping difficulty, need fill the blended use of other materials.
Mesosphere adopts PFA and PPL blended, and intermediate layer thickness is between 5 millimeters to 10 millimeters.
The invention has the beneficial effects as follows: present invention uses three-decker, avoid the harm that inner wall abrasion causes, improve Security, operational safety is high, anticorrosive, shock resistance.
Accompanying drawing explanation
Fig. 1 is a kind of compound conveying high-pressure of the present invention vitta structure schematic diagram.
In accompanying drawing, the mark of each parts is as follows:
1 is that high-pressure oil pipe is outer, and 2 is high-pressure oil pipe internal layer, and 3 is high-pressure oil pipe mesosphere, and 4 is outer projection.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
Refer to Fig. 1, the embodiment of the present invention comprises:
A kind of compound conveying high-pressure oil pipe comprises three-decker, and outermost surface is high strength carbon steel layer, and to pipeline, overall and inwall is played a supporting role, and in order to increase pipeline working life, described pipeline outer wall is provided with projection.
Described internal layer adopts high chromium cast iron layer, and described rich chromium cast iron has and well prevents corrosion ability, meanwhile, has very high intensity.
Described mesosphere is packing layer, and described packing layer adopts fluoroplastic composition, and mixed by soluble poly tetrafluoroethylene and polyparaphenylene phenol and form, mesosphere adopts PFA and PPL blended, and interior thickness is between 5 millimeters to 10 millimeters.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (1)
1. a compound conveying high-pressure oil pipe, it is characterized in that, comprise three-decker, outermost surface is high strength carbon steel layer, plays a supporting role to pipeline entirety and inwall thereof, described pipeline outer wall is provided with projection, described internal layer adopts high chromium cast iron layer, and mesosphere is packing layer, and described packing layer adopts fluoroplastic composition, mixed by soluble poly tetrafluoroethylene and polyparaphenylene phenol and form, intermediate layer thickness is between 5 millimeters to 10 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410556136.0A CN104373706A (en) | 2014-10-20 | 2014-10-20 | Composite conveying high-pressure oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410556136.0A CN104373706A (en) | 2014-10-20 | 2014-10-20 | Composite conveying high-pressure oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104373706A true CN104373706A (en) | 2015-02-25 |
Family
ID=52552787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410556136.0A Pending CN104373706A (en) | 2014-10-20 | 2014-10-20 | Composite conveying high-pressure oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104373706A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6030672A (en) * | 1995-04-24 | 2000-02-29 | Usui Kokusai Sangyo Kaisha Limited | Corrosion- and chipping-resistant resin coating structure for stainless steel pipes |
| CN202118401U (en) * | 2011-06-10 | 2012-01-18 | 上海市塑料研究所 | Teflon insulation high-pressure oil pipe assembly |
| CN103470870A (en) * | 2013-09-26 | 2013-12-25 | 苏州市吴中区曙光铜管厂 | Corrosion resistance pipeline |
| CN103644392A (en) * | 2013-11-21 | 2014-03-19 | 无锡市三六九钢管有限公司 | Steel pipe structure for conveying liquid |
| CN203549154U (en) * | 2013-09-29 | 2014-04-16 | 天津好为节能环保科技发展有限公司 | Corrosion prevention and heat preservation pipeline |
-
2014
- 2014-10-20 CN CN201410556136.0A patent/CN104373706A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6030672A (en) * | 1995-04-24 | 2000-02-29 | Usui Kokusai Sangyo Kaisha Limited | Corrosion- and chipping-resistant resin coating structure for stainless steel pipes |
| CN202118401U (en) * | 2011-06-10 | 2012-01-18 | 上海市塑料研究所 | Teflon insulation high-pressure oil pipe assembly |
| CN103470870A (en) * | 2013-09-26 | 2013-12-25 | 苏州市吴中区曙光铜管厂 | Corrosion resistance pipeline |
| CN203549154U (en) * | 2013-09-29 | 2014-04-16 | 天津好为节能环保科技发展有限公司 | Corrosion prevention and heat preservation pipeline |
| CN103644392A (en) * | 2013-11-21 | 2014-03-19 | 无锡市三六九钢管有限公司 | Steel pipe structure for conveying liquid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150225 |