CN114196959A - Insulating external member of reforming transform of steel pipeline cathodic protection end - Google Patents
Insulating external member of reforming transform of steel pipeline cathodic protection end Download PDFInfo
- Publication number
- CN114196959A CN114196959A CN202111520867.6A CN202111520867A CN114196959A CN 114196959 A CN114196959 A CN 114196959A CN 202111520867 A CN202111520867 A CN 202111520867A CN 114196959 A CN114196959 A CN 114196959A
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- CN
- China
- Prior art keywords
- ring
- gasket main
- type location
- cathodic protection
- insulation
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F2213/00—Aspects of inhibiting corrosion of metals by anodic or cathodic protection
- C23F2213/30—Anodic or cathodic protection specially adapted for a specific object
- C23F2213/32—Pipes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Gasket Seals (AREA)
Abstract
The invention relates to the technical field of flange insulation and sealing, in particular to an insulation transformation kit for a cathode protection tail end of a steel pipeline, which comprises a gasket main body, wherein the gasket main body is designed to have good insulation, high tensile strength, small elongation, high elastic coefficient, good rigidity, small water absorption and good flame retardance, two end faces of the gasket main body are respectively provided with staggered annular grooves, U-shaped positioning rings made of polytetrafluoroethylene and stainless steel spring rings are arranged in the annular grooves, the stainless steel spring rings are arranged inside the U-shaped positioning rings by utilizing the good insulation, excellent chemical stability, corrosion resistance, sealing property, wear resistance, low friction, impact resistance and good ageing resistance of the polytetrafluoroethylene, the actuating effect of the spring effectively overcomes the slight eccentricity of a metal matching surface, the abrasion of a sealing lip and the sealing compensation caused by vibration, the expected sealing performance is continuously kept, and different product size adjustment can be carried out according to different flange sizes.
Description
Technical Field
The invention relates to the technical field of flange insulation and sealing, in particular to a steel pipeline cathode protection tail end insulation transformation kit.
Background
The existing non-metal gasket main body for the flange generally uses asbestos rubber gasket, pure polytetrafluoroethylene gasket and non-asbestos fiber rubber gasket, and the rubber gasket has the defects of low compressive strength, short service life, poor insulation effect, poor sealing effect, no elastic compensation, poor temperature resistance, non-flame retardance, high water absorption rate, high manufacturing cost, poor aging resistance and the like.
In summary, the present invention solves the existing problems by designing a steel pipe cathodic protection end insulation transformation kit.
Disclosure of Invention
The invention aims to provide a steel pipeline cathode protection end insulation transformation kit to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a terminal insulating external member of reforming transform of steel pipeline cathodic protection, includes the gasket main part, the last annular groove has been seted up on the terminal surface of gasket main part, the internally mounted who goes up the annular groove has last U type location ring, the internally mounted who goes up U type location ring has last spring ring, the annular groove has been seted up down on the bottom of gasket main part, the internally mounted of lower annular groove has lower U type location ring, the internally mounted of lower U type location ring has lower spring ring.
In a preferred embodiment of the present invention, the gasket main body is made of resin and is integrally molded.
As a preferable scheme of the present invention, the upper U-shaped positioning ring and the lower U-shaped positioning ring may be made of polytetrafluoroethylene, polyethylene, polyurethane, or other materials according to a use scenario, and the upper spring ring and the lower spring ring are stainless steel spring rings or rubber rings.
As a preferable scheme of the invention, the upper spring ring and the upper U-shaped positioning ring are in interference fit, and the upper U-shaped positioning ring and the upper annular groove are in interference fit.
As a preferable scheme of the invention, the lower spring ring and the lower U-shaped positioning ring are in interference fit, and the lower U-shaped positioning ring and the lower annular groove are in interference fit.
In a preferred embodiment of the present invention, the inner diameter of the upper annular groove is smaller than the inner diameter of the lower annular groove.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through good insulation property of the gasket main body, high tensile strength, small extension, high elastic coefficient, good rigidity, small water absorption and good anti-aging property of flame retardance, the two end surfaces of the gasket main body are respectively provided with the staggered annular grooves, the U-shaped positioning rings made of polytetrafluoroethylene and the stainless steel spring ring are arranged in the annular grooves, the stainless steel spring ring is arranged inside the U-shaped positioning ring, the actuation effect of the spring effectively overcomes the slight eccentricity of a metal matching surface and the abrasion of a sealing lip by utilizing the good insulation property, excellent chemical stability, corrosion resistance, sealing property and good anti-aging property of the polytetrafluoroethylene, meanwhile, the annular bulges are correspondingly arranged at the two ends of the gasket main body and the sliding grooves, so that the slight eccentricity of the metal matching surface and the abrasion of the sealing lip are further overcome, the service life of the gasket is prolonged.
2. According to the gasket, through the structural arrangement of the gasket main body resin, the U-shaped positioning ring and the spring ring, materials are easy to obtain and convenient to manufacture, the gasket can be obtained through simple machining and simple manual assembly, the machining difficulty is small, the labor cost is low, the gasket main body structural resin plays a role in supporting, protecting and insulating, the U-shaped positioning ring and the spring ring play a role in sealing, elastic compensation and insulation, and the sealing performance between the gasket and a flange when the gasket is used is guaranteed.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic bottom view of FIG. 1 according to the present invention;
FIG. 3 is a schematic illustration of a partially exploded view of FIG. 1 in accordance with the present invention;
FIG. 4 is a schematic view of a portion of the structure of FIG. 1 in accordance with the present invention;
FIG. 5 is a schematic view of a portion of the structure of FIG. 2 according to the present invention;
fig. 6 is a partial sectional structural view of the present invention.
In the figure: 1. a gasket body; 2. an upper annular groove; 3. an upper U-shaped positioning ring; 4. an upper spring ring; 5. a lower annular groove; 6. a lower U-shaped positioning ring; 7. and (5) a lower spring ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.
While several embodiments of the present invention will be described more fully hereinafter with reference to the accompanying drawings, in order to facilitate an understanding of the invention, the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed to provide a more complete disclosure of the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present, that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, and that the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-6, the present invention provides a technical solution:
the utility model provides a steel pipeline cathodic protection terminal insulation reforms transform external member, includes gasket main part 1, last annular groove 2 has been seted up on gasket main part 1's the terminal surface, the internally mounted of going up annular groove 2 has last U type location ring 3, the internally mounted of going up U type location ring 3 has last spring ring 4, annular groove 5 has been seted up down on gasket main part 1's the bottom, U type location ring 6 under the internally mounted of annular groove 5 down, the internally mounted of U type location ring 6 has lower spring ring 7 down.
In a more preferred embodiment of the present invention, the gasket body 1 is made of resin and is integrally molded, and has good insulation properties, high tensile strength, small elongation, high elastic modulus, good rigidity, small water absorption, and good flame retardancy.
As a further preferable aspect of the present invention, the upper U-shaped positioning ring 3 and the lower U-shaped positioning ring 6 may be made of teflon, polyethylene, polyurethane, or the like according to a usage scenario, the upper spring ring 4 and the lower spring ring 7 are stainless steel spring rings or rubber rings, which have good insulation, excellent chemical stability, corrosion resistance, sealing performance, and aging resistance, and the actuation effect of the springs effectively overcomes slight eccentricity of the metal mating surface and abrasion of the sealing lip, thereby continuously maintaining the expected sealing performance.
As a further preferable scheme of the present invention, the upper spring ring 4 and the upper U-shaped positioning ring 3 are in interference fit, and the upper U-shaped positioning ring 3 and the upper annular groove 2 are in interference fit.
As a further preferable scheme of the present invention, the lower spring ring 7 and the lower U-shaped positioning ring 6 are in interference fit, and the lower U-shaped positioning ring 6 and the lower annular groove 5 are in interference fit.
As a further preferable aspect of the present invention, the inner diameter of the upper annular groove 2 is smaller than the inner diameter of the lower annular groove 5.
The specific implementation case is as follows:
this scheme application is in the flange, and through detecting 1 partial mechanical properties excellences of gasket main part: the vertical laminar compressive strength, the vertical laminar bending strength and the tensile strength are all more than or equal to 350Mpa, the parallel laminar impact strength is more than or equal to 50kJ/m2, and the parallel laminar shear strength is more than or equal to 14.7Mpa, so that the deformation problem caused by installation is completely eradicated;
1 fine protection of gasket main part U type circle and spring coil do not become by pressure deformation, aversion, and this scheme electrical property is excellent: the vertical layer direction electrical strength is more than or equal to 8MV/m, the withstand voltage value is more than or equal to 40000V, the insulation resistance after soaking is more than or equal to 5.0x104M omega, and the insulation and corrosion prevention requirements of the flange are completely met; the material can resist temperature more than or equal to 200 ℃, has no problem when used outdoors at normal temperature, has excellent flame retardant property of V-0 and water absorption of 0.03 percent;
thereby achieving the following effects:
1) the gasket body 1 has good insulation, high tensile strength, small elongation, high elastic coefficient, good rigidity, small water absorption and good flame retardance and aging resistance, and the two end faces of the gasket main body 1 are respectively provided with staggered annular grooves, U-shaped positioning rings 8 made of polytetrafluoroethylene and stainless steel spring rings are arranged in the annular grooves, the stainless steel spring rings are arranged on the inner sides of the U-shaped positioning rings by utilizing the good insulation property, the excellent chemical stability, the corrosion resistance, the sealing property and the good aging resistance of the polytetrafluoroethylene, the actuating effect of the springs effectively overcomes the slight eccentricity of a metal matching surface and the abrasion of a sealing lip, the expected sealing performance is continuously kept, and meanwhile, the two ends of the gasket main body are provided with the annular bulges corresponding to the sliding grooves, so that the slight eccentricity of a metal matching surface and the abrasion of the sealing lip are further overcome, and the service life of the gasket is prolonged;
2) through the structure setting of gasket main part resin + U type location ring + spring coil, the material easily obtains the manufacturing of being convenient for, through simple machining, including simple manual assembly can obtain, the processing degree of difficulty is little, the cost of labor is low, wherein gasket main part structure resin plays the support, the guard action, insulating effect, U type location ring and spring coil play sealed, the insulating effect of elastic compensation guarantees the stability of U type location ring and gasket sealing performance between the flange when using.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a terminal insulating external member of reforming transform of steel pipeline cathodic protection, includes gasket main part (1), its characterized in that: seted up ring channel (2) on the terminal surface of gasket main part (1), the internally mounted who goes up ring channel (2) has last U type location ring (3), the internally mounted who goes up U type location ring (3) has last spring ring (4), ring channel (5) down have been seted up on the bottom of gasket main part (1), the internally mounted of lower ring channel (5) has lower U type location ring (6), the internally mounted of lower U type location ring (6) has lower spring ring (7).
2. The steel pipe cathodic protection terminal insulation retrofit kit of claim 1, wherein: the gasket main body (1) is made of resin and is integrally molded.
3. The steel pipe cathodic protection terminal insulation retrofit kit of claim 1, wherein: go up U type location ring (3), lower U type location ring (6) can use materials such as polytetrafluoroethylene, polyethylene, polyurethane to make according to the use scene and form, go up spring ring (4), lower spring ring (7) and adopt stainless steel spring ring or rubber circle.
4. The steel pipe cathodic protection end insulation retrofit kit of claim 3, wherein: go up spring ring (4) and the cooperation mode of last U type location ring (3) be interference fit, the cooperation mode of going up U type location ring (3) and going up annular groove (2) is interference fit.
5. The steel pipe cathodic protection terminal insulation retrofit kit of claim 1, wherein: the lower spring ring (7) and the lower U-shaped positioning ring (6) are in interference fit, and the lower U-shaped positioning ring (6) and the lower annular groove (5) are in interference fit.
6. The steel pipe cathodic protection terminal insulation retrofit kit of claim 1, wherein: the inner diameter of the upper annular groove (2) is smaller than that of the lower annular groove (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111520867.6A CN114196959A (en) | 2021-12-14 | 2021-12-14 | Insulating external member of reforming transform of steel pipeline cathodic protection end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111520867.6A CN114196959A (en) | 2021-12-14 | 2021-12-14 | Insulating external member of reforming transform of steel pipeline cathodic protection end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114196959A true CN114196959A (en) | 2022-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111520867.6A Pending CN114196959A (en) | 2021-12-14 | 2021-12-14 | Insulating external member of reforming transform of steel pipeline cathodic protection end |
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| Country | Link |
|---|---|
| CN (1) | CN114196959A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101506190B1 (en) * | 2013-10-30 | 2015-03-25 | 제일 이엔에스 주식회사 | An insulated gasket for high temperature and pressure having metal o ring |
| KR20180084338A (en) * | 2017-01-16 | 2018-07-25 | 이종철 | Gasket |
| CN208670351U (en) * | 2018-07-26 | 2019-03-29 | 利拓密封绝缘技术(上海)有限公司 | Insulated enclosure gasket |
| CN208670043U (en) * | 2018-07-26 | 2019-03-29 | 利拓密封绝缘技术(上海)有限公司 | Fire prevention gasket |
| CN209943510U (en) * | 2019-04-23 | 2020-01-14 | 宁波德克森密封科技有限公司 | Novel tetrafluoro inner ring insulating spacer |
-
2021
- 2021-12-14 CN CN202111520867.6A patent/CN114196959A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101506190B1 (en) * | 2013-10-30 | 2015-03-25 | 제일 이엔에스 주식회사 | An insulated gasket for high temperature and pressure having metal o ring |
| KR20180084338A (en) * | 2017-01-16 | 2018-07-25 | 이종철 | Gasket |
| CN208670351U (en) * | 2018-07-26 | 2019-03-29 | 利拓密封绝缘技术(上海)有限公司 | Insulated enclosure gasket |
| CN208670043U (en) * | 2018-07-26 | 2019-03-29 | 利拓密封绝缘技术(上海)有限公司 | Fire prevention gasket |
| CN209943510U (en) * | 2019-04-23 | 2020-01-14 | 宁波德克森密封科技有限公司 | Novel tetrafluoro inner ring insulating spacer |
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