CN104864200B - A kind of inner liner stainless steel composite pipe - Google Patents
A kind of inner liner stainless steel composite pipe Download PDFInfo
- Publication number
- CN104864200B CN104864200B CN201510287774.1A CN201510287774A CN104864200B CN 104864200 B CN104864200 B CN 104864200B CN 201510287774 A CN201510287774 A CN 201510287774A CN 104864200 B CN104864200 B CN 104864200B
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- China
- Prior art keywords
- stainless steel
- pipe fitting
- sealing
- outer layer
- cast iron
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Classifications
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- 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
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/04—Screw-threaded joints; Forms of screw-threads for such joints with additional sealings
-
- 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
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/18—Protection of pipes or pipe fittings against corrosion or incrustation specially adapted for pipe fittings
- F16L58/182—Protection of pipes or pipe fittings against corrosion or incrustation specially adapted for pipe fittings for screw-threaded joints
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The invention discloses a kind of inner liner stainless steel composite pipe, including outer layer malleable cast iron pipe fitting, fixed body, stainless steel lining and sealing ring, stainless steel lining is fixed on the inner wall of outer layer malleable cast iron pipe fitting by fixed body, sealing ring is arranged on the end of fixed body, and positioned at the interface of outer layer malleable cast iron pipe fitting, sealing ring includes seal ring body and cone boss, cone boss is arranged on the front end of seal ring body, seal ring body front end is reserved with the end face seal face for end face seal, and the inclined plane of cone boss is the inner sealing surface for side sealing.The inner liner stainless steel composite pipe of the present invention, pass through inner sealing surface and end face seal face, realize pipe fitting and the dual fail-safe sealed during inner liner stainless steel fastener for connection, it is ensured that the fluid in pipe only contacts stainless steel layer without contacting outer layer malleable cast iron pipe fitting, the sanitary index of guarantee water.Meanwhile convenient installation, the sense of responsibility for installing horizontal and operating personnel is relied on not too much, is had a good application prospect.
Description
Technical field
The present invention relates to anticorrosion pipe fitting technical field, and in particular to a kind of inner liner stainless steel composite pipe.
Background technology
In order to improve the quality drunk with water, prevent that some are right caused by the inner wall of water long-term corrosion metal tube
Element that human body is harmful to, which enters, to be drunk with water, is detrimental to health, inner liner stainless steel water delivery is widely used with pipeline.
At present, the sealing mechanism of the pipe fitting of pipeline connection is perfect not enough, when pipe fitting is connected with pipe fitting or pipe fitting with pipeline, pipe
Top tight sealing circle cannot be completely secured in threaded connection in part, be easy to cause the end face corrosion of pipeline, corrosion, pipe end corrosion occur
Afterwards, pollution is drunk with water, so as to cause the sanitary condition of drinking water unqualified.
Meanwhile because the sealing mechanism of pipe fitting connection, it is undue to rely on installation level when pipe fitting closely connects installation
With the sense of responsibility of operating personnel, installation quality is difficult to control, time-consuming and laborious during installation, moreover, sealing effect is bad.
The content of the invention
When technical problem solved by the invention is that existing pipe fitting is connected with pipe fitting or pipe fitting with pipeline, in pipe fitting
Top tight sealing circle cannot be completely secured in threaded connection, the end face corrosion of pipeline is be easy to cause, so as to cause the hygiene one of drinking water
The problem of part is unqualified, time-consuming and laborious during installation, and sealing effect is bad.
In order to achieve the above object, the technical solution adopted in the present invention is：
A kind of inner liner stainless steel composite pipe, it is characterised in that：Including outer layer malleable cast iron pipe fitting, fixed body, stainless steel lining
And sealing ring, the stainless steel lining are fixed on the inner wall of outer layer malleable cast iron pipe fitting by fixed body, the sealing ring is arranged on solid
Determine the end of body, and include integrally formed seal ring body and taper positioned at the interface of outer layer malleable cast iron pipe fitting, the sealing ring
Boss, the cone boss are arranged on the front end of seal ring body, and the seal ring body front end is reserved with for end face seal
End face seal face, the inclined plane of the cone boss is the inner sealing surface for side sealing.
A kind of foregoing inner liner stainless steel composite pipe, it is characterised in that：The rearward end of the seal ring body and taper are convex
Set to form step ring between platform, the end of the stainless steel lining holds out against step ring and is flush with step ring.
A kind of foregoing inner liner stainless steel composite pipe, it is characterised in that：The inner sealing surface is faced directly or tilted for inclination
Cambered surface.
A kind of foregoing inner liner stainless steel composite pipe, it is characterised in that：The angle of inclination of the inner sealing surface 10 °-
Between 45 °.
A kind of foregoing inner liner stainless steel composite pipe, it is characterised in that：The angle of inclination of the inner sealing surface is 30 °.
A kind of foregoing inner liner stainless steel composite pipe, it is characterised in that：The inner sealing surface is equipped with sealing screw thread.
A kind of foregoing inner liner stainless steel composite pipe, it is characterised in that：The fixed body is food-grade PPR materials.
A kind of foregoing inner liner stainless steel composite pipe, it is characterised in that：The stainless steel lining uses austenite stainless
Steel or ferrite stainless steel material are made.
A kind of foregoing inner liner stainless steel composite pipe, it is characterised in that：The sealing ring is food-grade elastomeric material.
The beneficial effects of the invention are as follows：The inner liner stainless steel composite pipe of the present invention, passes through inner sealing surface and end face seal
Face, realizes pipe fitting and the dual fail-safe sealed during inner liner stainless steel fastener for connection, compensate for fault of construction, it is ensured that the stream in pipe
Body only contacts stainless steel layer without contacting outer layer malleable cast iron pipe fitting, really plays excellent performance of the stainless steel in fluid conveying,
While extending pipe fitting service life, transfer efficiency is improved, it is ensured that delivery safety, the sanitary index of guarantee water.Meanwhile
When installing and using, it is easier to reach installation requirement, not too much the horizontal sense of responsibility with operating personnel of dependence installation, have well
Application prospect.
Brief description of the drawings
Fig. 1 is the structure diagram of the inner liner stainless steel composite pipe first embodiment of the present invention.
Fig. 2 is the first schematic diagram of sealing ring in first embodiment of the invention.
Fig. 3 is the second schematic diagram of sealing ring in first embodiment of the invention.
Fig. 4 is the 3rd schematic diagram of sealing ring in first embodiment of the invention.
Fig. 5 is the 4th schematic diagram of sealing ring in first embodiment of the invention.
Fig. 6 is the structure diagram of the inner liner stainless steel composite pipe second embodiment of the present invention.
Fig. 7 is the first schematic diagram of sealing ring in second embodiment of the invention.
Fig. 8 is the second schematic diagram of sealing ring in second embodiment of the invention.
Fig. 9 is the 3rd schematic diagram of sealing ring in third embodiment of the invention.
Figure 10 is the 4th schematic diagram of sealing ring in fourth embodiment of the invention.
The implication marked in attached drawing is as follows：
1：Outer layer malleable cast iron pipe fitting；2：Fixed body；3：Stainless steel lining；4：Sealing ring；401：Seal ring body；402：Taper is convex
Platform；403：Step ring；41：End face seal face；42：Inner sealing surface；43：Seal screw thread.
Embodiment
Below in conjunction with Figure of description, the present invention is further illustrated.
The inner liner stainless steel composite pipe of the present invention, by inner sealing surface and end face seal face, realizes pipe fitting and liner
The dual fail-safe that seals when stainless-steel pipe connects, compensate for fault of construction, it is ensured that the fluid in pipe only contact stainless steel layer and
Outer layer malleable cast iron pipe fitting is not contacted, is really played excellent performance of the stainless steel in fluid conveying, is being extended pipe fitting service life
Meanwhile improve transfer efficiency, it is ensured that delivery safety, the sanitary index of guarantee water,
As shown in Figure 1, the inner liner stainless steel composite pipe first embodiment of the present invention, including outer layer malleable cast iron pipe fitting 1, fixation
Body 2, stainless steel lining 3 and sealing ring 4, stainless steel lining 3 is fixed on the inner wall of outer layer malleable cast iron pipe fitting 1 by fixed body 2, described
Sealing ring 4 is arranged on the end of fixed body 2, and positioned at the interface of outer layer malleable cast iron pipe fitting 1（I.e. outer layer malleable cast iron pipe fitting 1 is each
Interface has a sealing ring）, sealing ring 4 includes integrally formed seal ring body 401 and cone boss 402, cone boss
402 are arranged on the front end of seal ring body 401, and 401 front end of seal ring body is reserved with the end face seal face for end face seal
41, the inclined plane of cone boss 402 is the inner sealing surface 42 for side sealing, and inner sealing surface 42 and end face seal face 41 are played
The effect of sealing is carried out at the same time inside and outside when the pipe fitting of the present invention is connected with pipeline, raising sealing effect, prevents in pipe
Fluid only contacts stainless steel layer without contacting outer layer malleable cast iron pipe fitting.As shown in Fig. 2, inner sealing surface 42 is faced directly for inclination, interior sealing
The angle of inclination in face is between 10 ° -45 °, preferably 30 °, as shown in figure 3, inner sealing surface 42 is equipped with sealing screw thread 43, improves close
The fixed effect of sealing.As shown in figure 4, inner sealing surface 42 for tilt cambered surface, the angle of inclination of inner sealing surface between 10 ° -45 °,
It is preferred that 30 °, as shown in figure 5, inner sealing surface 42 is equipped with sealing screw thread 43, improve the fixed effect of sealing.
As shown in fig. 6, the inner liner stainless steel composite pipe second embodiment of the present invention, including outer layer malleable cast iron pipe fitting 1, fixation
Body 2, stainless steel lining 3 and sealing ring 4, the stainless steel lining 3 are fixed on the inner wall of outer layer malleable cast iron pipe fitting 1 by fixed body 2,
Sealing ring 4 is two pieces, is separately positioned on two ends of fixed body 2, and each sealing ring 4 includes seal ring body 401 and cone boss
402, cone boss 402 is arranged on the front end of seal ring body 401, and 401 front end of seal ring body is reserved with for end face seal
End face seal face 41, the inclined plane of cone boss 402 is the inner sealing surface 42 for side sealing, inner sealing surface 42 and end face
Sealing is carried out at the same time inside and outside when the pipe fitting that sealing surface 41 plays the role of the present invention is connected with pipeline, improves sealing effect
Fruit, prevents the fluid in pipe from only contacting stainless steel layer without contacting outer layer malleable cast iron pipe fitting.As shown in Fig. 7-Figure 10, the sealing ring
Setting to form step ring 403 between the rearward end and cone boss 402 of body 401, the end of stainless steel lining 3 holds out against step ring 403,
And be flush with step ring 403, the dosage of 3 material of stainless steel lining can be saved, saves cost.As shown in fig. 7, inner sealing surface
42 face directly for inclination, and the angle of inclination of inner sealing surface is between 10 ° -45 °, preferably 30 °, as shown in figure 8, being set on inner sealing surface 42
There is sealing screw thread 43, improve the fixed effect of sealing；As shown in figure 9, inner sealing surface 42 is inclination cambered surface, the inclination of inner sealing surface
Angle is between 10 ° -45 °, preferably 30 °, and as shown in Figure 10, inner sealing surface 42 is equipped with sealing screw thread 43, improves sealing and fixes
Effect.
In the inner liner stainless steel composite pipe first embodiment and second embodiment of the present invention, fixed body 2 is food-grade PPR
Material, stainless steel lining 3 are made of austenitic stainless steel or ferrite stainless steel material, and further stainless steel lining 3 uses
0Cr18Ni9 stainless steel materials are made, and sealing ring 4 is food-grade elastomeric material, and above-mentioned material uses food grade materials, ensure
With the sanitary index of water.
In conclusion the inner liner stainless steel composite pipe of the present invention, by inner sealing surface and end face seal face, realizes pipe
Part and the dual fail-safe sealed during inner liner stainless steel fastener for connection, compensate for fault of construction, it is ensured that the fluid in pipe only contacts not
Steel layer of becoming rusty really plays excellent performance of the stainless steel in fluid conveying, makes extending pipe fitting without contacting outer layer malleable cast iron pipe fitting
While with the service life, transfer efficiency is improved, it is ensured that delivery safety, the sanitary index of guarantee water.Meanwhile installing and using
When, it is easier to reach installation requirement, rely on the horizontal sense of responsibility with operating personnel of installation not too much, before there is good application
Scape.
The basic principles, main features and the advantages of the invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (2)
- A kind of 1. inner liner stainless steel composite pipe, it is characterised in that：Including outer layer malleable cast iron pipe fitting（1）, fixed body（2）, stainless steel Lining（3）And sealing ring（4）, the stainless steel lining（3）Pass through fixed body（2）It is fixed on outer layer malleable cast iron pipe fitting（1）Inner wall, The sealing ring（4）It is arranged on fixed body（2）End, and be located at outer layer malleable cast iron pipe fitting（1）Interface, the sealing ring （4）Including integrally formed seal ring body（401）And cone boss（402）, the cone boss（402）It is arranged on seal ring body （401）Front end, the seal ring body（401）Front end is reserved with the end face seal face for end face seal（41）, it is described Cone boss（402）Inclined plane be for side sealing inner sealing surface（42）, the seal ring body（401）Rearward end with Cone boss（402）Between formed step ring（403）, the stainless steel lining（3）End hold out against step ring（403）, and with Step ring（403）It is flush, the inner sealing surface（42）Cambered surface, the angle of inclination of the inner sealing surface are faced or tilt directly to tilt Between 10 ° -45 °, the inner sealing surface（42）It is equipped with sealing screw thread（43）, the fixed body（2）For food-grade PPR materials Material, the stainless steel lining（3）It is made of austenitic stainless steel or ferrite stainless steel material, the sealing ring（4）For food Grade elastomeric material.
- A kind of 2. inner liner stainless steel composite pipe according to claim 1, it is characterised in that：The inner sealing surface（42）'s Angle of inclination is 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510287774.1A CN104864200B (en) | 2015-05-29 | 2015-05-29 | A kind of inner liner stainless steel composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510287774.1A CN104864200B (en) | 2015-05-29 | 2015-05-29 | A kind of inner liner stainless steel composite pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104864200A CN104864200A (en) | 2015-08-26 |
| CN104864200B true CN104864200B (en) | 2018-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510287774.1A Active CN104864200B (en) | 2015-05-29 | 2015-05-29 | A kind of inner liner stainless steel composite pipe |
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| CN (1) | CN104864200B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855238B (en) * | 2016-06-29 | 2018-02-27 | 田禹 | Ultrasonic wave pipe-line system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201382220Y (en) * | 2009-03-26 | 2010-01-13 | 杨长国 | Plastic-aluminum pipe junction |
| CN101649934A (en) * | 2009-09-09 | 2010-02-17 | 陈保春 | Extrusion type hard-sealing fast-connection pipeline |
| CN101725607A (en) * | 2008-10-23 | 2010-06-09 | 浜国际有限公司 | Thread, fastening system, pipe fitting and method for manufacturing thread |
| CN103711754A (en) * | 2012-09-28 | 2014-04-09 | 科德宝两合公司 | Plug-in piece |
| CN204692813U (en) * | 2015-05-29 | 2015-10-07 | 江苏众信绿色管业科技有限公司 | A kind of inner liner stainless steel composite pipe fitting |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2866782B2 (en) * | 1993-06-22 | 1999-03-08 | 三菱樹脂株式会社 | Anticorrosion pipe fittings |
| JPH07269754A (en) * | 1994-03-30 | 1995-10-20 | Hitachi Metals Ltd | Insulating coupling for faucet |
-
2015
- 2015-05-29 CN CN201510287774.1A patent/CN104864200B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725607A (en) * | 2008-10-23 | 2010-06-09 | 浜国际有限公司 | Thread, fastening system, pipe fitting and method for manufacturing thread |
| CN201382220Y (en) * | 2009-03-26 | 2010-01-13 | 杨长国 | Plastic-aluminum pipe junction |
| CN101649934A (en) * | 2009-09-09 | 2010-02-17 | 陈保春 | Extrusion type hard-sealing fast-connection pipeline |
| CN103711754A (en) * | 2012-09-28 | 2014-04-09 | 科德宝两合公司 | Plug-in piece |
| CN204692813U (en) * | 2015-05-29 | 2015-10-07 | 江苏众信绿色管业科技有限公司 | A kind of inner liner stainless steel composite pipe fitting |
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| Publication number | Publication date |
|---|---|
| CN104864200A (en) | 2015-08-26 |
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