CN205877496U - Anticorrosive connection structure of blind flange and pipeline - Google Patents
Anticorrosive connection structure of blind flange and pipeline Download PDFInfo
- Publication number
- CN205877496U CN205877496U CN201620697622.9U CN201620697622U CN205877496U CN 205877496 U CN205877496 U CN 205877496U CN 201620697622 U CN201620697622 U CN 201620697622U CN 205877496 U CN205877496 U CN 205877496U
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- China
- Prior art keywords
- corrosion
- internal diameter
- lining
- pipeline
- anticorrosive
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Abstract
The utility model provides an anticorrosive connection structure of blind flange and pipeline, be equipped with the ring flange including blind flange body and pipe body, pipe body, the pipe body is equipped with anticorrosive inside lining, and the ring flange is equipped with the ladder mouth that makes the pipeline mouth be the echelonment, and the internal diameter of ladder mouth is greater than the internal diameter of tub body, and anticorrosive inside lining is extended to on the ladder mouth by the internal surface of tub body, being equipped with the internal diameter in the quotation of blind flange body and being greater than tub recess of body internal diameter, be equipped with the anticorrosive lining that its internal diameter is greater than the internal diameter of tub body and is less than the recess internal diameter in the recess, anticorrosive lining's the axial degree of depth is greater than the degree of depth of recess, anticorrosive lining and anticorrosive inside lining all adopt the polytetrafluoroethylene material to make and the contact surface all is the cockscomb structure face, and when blind flange body and ring flange interconnect, the mutual extrusion contact of cockscomb structure is personally submitted to anticorrosive lining and anticorrosive inside lining for the contact. The utility model provides a have the non -corrosibility, it is anticorrosive sealed effectual, the anticorrosive chronic neotype blind flange and the connection structure of pipeline.
Description
Technical field
This utility model relates to a kind of blank flange and pipe connecting structure, particularly relates to a kind of blank flange and pipeline
Anti-corrosion connecting structure.
Background technology
Blank flange is also known as blind flange, is a kind of type of attachment of flange.Its function one is to block the end of pipeline, two
It is to have the effect of the convenient foreign material removed in pipeline when maintenance.For plugging action, there is identical work with end socket and pipe cap
With.The dismounting but end socket is had no idea, and blank flange is fixed with bolt, can dismantle very easily.
The etching problem of metallic conduit affects the service life of pipeline, and the common flange with anti-corrosive properties is with pipeline even
Access node structure is typically all and carries out the preservative treatments such as painting anticorrosion coating on the inwall of pipeline, in the welding process that pipeline connects
In, duct wall is heated and makes anticorrosive coat impaired, affects antiseptic property, causes the junction of pipeline to be corroded, leaks, especially
It is the pipeline that diameter is less, carries out anticorrosive construction owing to cannot be introduced into pipe interior butt joint internal partial wall after welding, therefore manage
The sealing in road can not get ensureing.
Politef is in addition to high temperature height melts alkali metal, element fluorine and chlorine trifluoride, is resistant to any kind, any concentration
Strong acid, highly basic, strong oxidizer, organic solvent etc., be that to solve high temperature dilute sulfuric acid, Fluohydric acid., hydrochloric acid and various organic acid etc. strong
The ideal product of etch chemistries dielectric corrosion problem；It has the chemical stability of excellence, has the highest thermostability, tolerance to cold,
Coefficient of friction is the lowest, is fabulous self-lubricating material；Its characteristic property is less than other material, so it has " plastics
King " title, be world today's corrosion-resistant material.
Utility model content
Based on the problems referred to above, this utility model purpose is to provide one to have anti-corrosive properties, and preserving and sealing is effective, anticorrosion
The novel blank flange of time length and the attachment structure of pipeline.
For problem above, it is provided that following technical scheme: a kind of blank flange and the anti-corrosion connecting structure of pipeline, including
Blank flange body and tube body, the connecting end surface of described tube body is provided with ring flange, it is characterised in that: described tube body is provided with
Corrosion-proof lining, the end face of described ring flange is provided with the ladder mouth making pipeline opening stepped, and the internal diameter of described ladder mouth is more than
The internal diameter of tube body, described corrosion-proof lining is extended on ladder mouth by the inner surface of tube body；On described blank flange body with
The card that ring flange is connected is provided with the internal diameter groove more than tube body internal diameter, is provided with its internal diameter more than pipe originally in described groove
The internal diameter of body and the corrosion protective lining less than groove internal diameter, the axial depth of described corrosion protective lining is more than the degree of depth of groove；Described anti-
Rotten lining and corrosion-proof lining all use polytetrafluoroethylmaterial material to make and the axial end that contacts with each other is all in the saw being mutually adapted
Toothed surfaces, when described blank flange body and ring flange are connected with each other, described corrosion protective lining and corrosion-proof lining be contact surface be saw
Dentation mutually extrude contact.
This utility model is further arranged to: described bottom portion of groove is provided with and extends in pipeline opening with for positioning anticorrosion lining
In boss.
This utility model is further arranged to: be coated with anticorrosion on the outer surface of described blank flange body and tube body
Layer, described anticorrosive coat is aqueous inorganic zinc-rich enamelled coating.
This utility model is further arranged to: described blank flange body and ring flange are inter-connected via a bolt joint.
The beneficial effects of the utility model: the technical program is first in the pipeline opening of ring flange and on blank flange body
It is provided with internal diameter and is all higher than ladder mouth and the groove of tube body internal diameter, be provided with on ladder mouth and groove the most again and all use height
Intensity, the polytetrafluoroethylmaterial material of high anti-corrosive properties comes the liner respectively as tube body and the lining of blank flange body, works as method
When blue dish and the mutual compact siro spinning technology of blank flange body, owing to the axial depth of corrosion protective lining is more than the degree of depth of groove, so rank
Ladder way and the difference in internal diameters of corrosion-proof lining, groove are corrosion-proof lining and anticorrosion lining with the space of the difference in internal diameters generation of corrosion protective lining
In the pressurized generation creep diffusion that contacts with each other provide and utilize space, on the other hand, corrosion protective lining and corrosion-proof lining are contact surface
Indentation mutually extrude contact, therefore make ring flange and blank flange body be formed when being mutually butted closely, contact surface
Anticorrosion big, rigidity connects, and not only preserving and sealing is effective, and anti-corrosion life increases.
Accompanying drawing explanation
Fig. 1 is corrosion protective lining and anti-after blank flange body and the docking of tube body mutual rigidity in this utility model embodiment
The cross-sectional view that rotten liner creep seals；
Fig. 2 is the cross-sectional view of blank flange body in this utility model embodiment；
Fig. 3 is the cross-sectional view of tube body in this utility model embodiment；
Fig. 4 be in this utility model solid yardage bag example blank flange body and tube body mutual rigidity docking before cross-section structure
Schematic diagram.
Figure is illustrated: 1-blank flange body；11-groove；111-boss；12-corrosion protective lining；121-axial end；2-
Tube body；21-ring flange: 211-ladder mouth；22-corrosion-proof lining；221-axial end；3-anticorrosive coat；4-bolt；
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, detailed description of the invention of the present utility model is described in further detail.Below
Embodiment is used for illustrating this utility model, but is not limited to scope of the present utility model.
As it is shown in figure 1, a kind of blank flange and the anti-corrosion connecting structure of pipeline, including blank flange body 1 and tube body
2, the connecting end surface of described tube body 2 is provided with ring flange 21；As it is shown on figure 3, described tube body 2 is provided with corrosion-proof lining 22, described
The end face of ring flange 21 is provided with the ladder mouth 211 making pipeline opening stepped, and the internal diameter of described ladder mouth 211 is more than tube body
The internal diameter of 2, described corrosion-proof lining 22 is extended on ladder mouth 211 by the inner surface of tube body 2；As shown in Figures 1 and 2, described
The card being connected with ring flange 21 on blank flange body 1 is provided with the internal diameter groove 11 more than tube body 2 internal diameter, described recessed
Its internal diameter internal diameter more than tube body 2 and the corrosion protective lining 12 less than groove 11 internal diameter, described corrosion protective lining 12 it is provided with in groove 11
Axial depth more than the degree of depth of groove 11；Described corrosion protective lining 12 and corrosion-proof lining 22 all use polytetrafluoroethylmaterial material to make
And the axial end 121 that contacts with each other and axial end 221 are all in the zigzag face being mutually adapted, described blank flange body 1
When being connected with each other with ring flange 21, the mutually extruding that described corrosion protective lining 12 and corrosion-proof lining 22 are contact surface indentation connects
Touch.Further, described blank flange body 1 and ring flange 21 are connected with each other by bolt 4.
First the technical program is provided with internal diameter in the pipeline opening of ring flange 21 and on blank flange body 1 and is all higher than pipe
The ladder mouth 211 of body 2 internal diameter and groove 11, be provided with on ladder mouth 211 and groove 11 the most again and all use high intensity, high
The polytetrafluoroethylmaterial material of anti-corrosive properties comes the corrosion-proof lining 22 respectively as tube body 2 and the corrosion protective lining of blank flange body 1
12, as shown in Fig. 1 and Fig. 4, when ring flange 21 and blank flange body 1 mutual compact siro spinning technology, due to the axle of corrosion protective lining 12
The degree of depth of groove 11 it is more than to the degree of depth, so ladder mouth 211 and the difference in internal diameters of corrosion-proof lining 22, groove 11 and corrosion protective lining 12
The space that both difference in internal diameters produce is corrosion-proof lining 22 and corrosion protective lining 12 contacts with each other, and pressurized generation creep diffusion provides profit
Use space；On the other hand, corrosion protective lining 12 contacts for mutually extruding of contact surface indentation with corrosion-proof lining 22, therefore makes method
Blue dish 21 and blank flange body 1 is formed when being mutually butted closely, the connection of contact surface anticorrosion big, rigidity, not only anticorrosion
Good sealing effect, and anti-corrosion life increases.
As in figure 2 it is shown, be provided with the boss extended in pipeline opening with for positioning corrosion protective lining 12 bottom described groove 11
111.Corrosion protective lining 12 can be played the role of positioning by boss 111, the connection of both firm corrosion protective lining 12 and blank flange body 1.
As shown in Figures 2 and 3, the outer surface of described blank flange body 1 and tube body 2 is coated with anticorrosive coat 3, described
Anticorrosive coat 3 is aqueous inorganic zinc-rich enamelled coating.Coated anti-corrosion layer 3 can prevent outer bound pair blank flange body 1 and the outer surface of tube body 2
Corrosion, thus extend the service life of blank flange and pipeline.
The above is only preferred implementation of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of without departing from this utility model know-why, it is also possible to make some improvement and modification, above-mentioned vacation
If these improve and modification also should be regarded as protection domain of the present utility model.
Claims (4)
1. blank flange and an anti-corrosion connecting structure for pipeline, including blank flange body and tube body, described tube body
Connecting end surface is provided with ring flange, it is characterised in that: described tube body is provided with corrosion-proof lining, and the end face of described ring flange is provided with and makes
The ladder mouth that pipeline opening is stepped, the internal diameter of described ladder mouth is more than the internal diameter of tube body, and described corrosion-proof lining is by tube body
Inner surface extend on ladder mouth；The card being connected with ring flange on described blank flange body is provided with internal diameter more than pipe
The groove of body internal diameter, is provided with its internal diameter internal diameter more than tube body and the corrosion protective lining less than groove internal diameter in described groove,
The axial depth of described corrosion protective lining is more than the degree of depth of groove；Described corrosion protective lining and corrosion-proof lining all use politef material
Material is made and the axial end that contacts with each other is all in the zigzag face being mutually adapted, and described blank flange body and ring flange are mutual
During connection, described corrosion protective lining is that mutually extruding of contact surface indentation contacts with corrosion-proof lining.
A kind of blank flange the most according to claim 1 and the anti-corrosion connecting structure of pipeline, it is characterised in that: described groove
Bottom is provided with the boss extended in pipeline opening with for positioning corrosion protective lining.
A kind of blank flange the most according to claim 1 and 2 and the anti-corrosion connecting structure of pipeline, it is characterised in that: described
Being coated with anticorrosive coat on the outer surface of blank flange body and tube body, described anticorrosive coat is aqueous inorganic zinc-rich enamelled coating.
A kind of blank flange the most according to claim 1 and the anti-corrosion connecting structure of pipeline, it is characterised in that: described blind plate
Flange body and ring flange are inter-connected via a bolt joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620697622.9U CN205877496U (en) | 2016-06-27 | 2016-06-27 | Anticorrosive connection structure of blind flange and pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620697622.9U CN205877496U (en) | 2016-06-27 | 2016-06-27 | Anticorrosive connection structure of blind flange and pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205877496U true CN205877496U (en) | 2017-01-11 |
Family
ID=57694174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620697622.9U Expired - Fee Related CN205877496U (en) | 2016-06-27 | 2016-06-27 | Anticorrosive connection structure of blind flange and pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205877496U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107529598A (en) * | 2017-08-09 | 2018-01-02 | 镇江春环密封件集团有限公司 | A kind of steel lining composite pipe structure |
| CN108266597A (en) * | 2018-04-01 | 2018-07-10 | 上海外高桥造船有限公司 | Seawater pipeline main line erosion protection system |
-
2016
- 2016-06-27 CN CN201620697622.9U patent/CN205877496U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107529598A (en) * | 2017-08-09 | 2018-01-02 | 镇江春环密封件集团有限公司 | A kind of steel lining composite pipe structure |
| CN108266597A (en) * | 2018-04-01 | 2018-07-10 | 上海外高桥造船有限公司 | Seawater pipeline main line erosion protection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20180627 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |