CN105840934A - Insulating joint and installation method thereof - Google Patents
Insulating joint and installation method thereof Download PDFInfo
- Publication number
- CN105840934A CN105840934A CN201610394366.0A CN201610394366A CN105840934A CN 105840934 A CN105840934 A CN 105840934A CN 201610394366 A CN201610394366 A CN 201610394366A CN 105840934 A CN105840934 A CN 105840934A
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- China
- Prior art keywords
- insulating joint
- ring
- inner flange
- adapter
- insulating
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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
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
-
- 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
- F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
- F16L25/02—Electrically insulating joints or couplings
- F16L25/026—Electrically insulating joints or couplings for flanged joints
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints With Sleeves (AREA)
Abstract
The invention discloses an insulating joint and an installation method thereof. The insulating joint comprises an outer flange, an inner flange, a first insulating ring, connection pipes on the two sides, and seal rubber rings. The connection pipes on the two sides include the first connection pipe and the second connection pipe. The outer flange is connected with the first connection pipe. The inner flange is connected with the second connection pipe. Each seal rubber ring comprises a rubber ring body and an inclined part, wherein a U-shaped sunken part is arranged between the inclined part and the rubber ring body, and the rubber ring body and the inclined part are integrally formed. The two seal rubber rings are symmetrically installed on the two sides of the first insulating ring. The first insulating ring and the seal rubber rings are located at the joint of the outer flange and the inner flange. According to the insulating joint, the seal rubber rings which can be automatically adjusted along with changes of the gap between a forge piece and an insulating plate and can ensure the sealing performance when the insulating joint is influenced by external factors in a pipeline and deforms are provided; and meanwhile, an external overload protection device is adopted for ensuring that the situation that because of factors such as static accumulation or thunder and lightning of the long-distance transport pipeline, the insulating joint is broken down and fails is prevented, and the situation that the joint fails due to current breakdown is effectively avoided.
Description
Technical field
The present invention relates to pipe joint field, particularly relate to a kind of insulating joint and installation method thereof.
Background technology
At present, along with urban modernization construction and industrial expansion, pipeline increases rapidly, oil sky
So the long-distance transport pipes (oil, gas and water etc.) such as gas pipeline lay underground, for a long time by external environment condition and
The strong impact of interior media, and along with the convenient requirement of user, the peace of SI semi-insulation joint
Dress mode is gradually installed by underground and is transferred on the ground, owing to long-distance transport pipes length of pipe section on the ground is limited,
Insulating joint installation site distance elbow or threeway iso-stress concentrate position nearer, it is more likely that make
During with, by the stress that pipeline is bigger, pipeline recurring structure deforms, and insulate in the case of this
Joint is it has to be ensured that sealing property, so harsher to the seal request of insulating joint, needs
Its structural behaviour being suitable for malformation and must sealing simultaneously.Conventional insulation joint uses O
Type O-ring seal and U-shaped O-ring seal, O type O-ring seal connects because of less sealed section, insulation
When head is subject to extraneous stress in pipeline, because external force impact, the situation of seal failure can occur；U
The sealed section that type O-ring seal is bigger compensate for the shortcoming of O type cushion rubber, but in an assembling process,
It is placed in the U-shaped cushion rubber at sealing ring top, occurs O-ring seal to get between flange and cylinder sleeve gap,
The generation of the overlap of O-ring seal, even lamination can be caused, insulating joint life-time service is deposited
In potential safety hazard.
Further, in potted component works, O type O-ring seal all passes through with U-shaped O-ring seal
Deflection (decrement) reaches sealing effectiveness, and this just requires that the annular seal space necessity formed controls
In certain scope, i.e. in equipment work process, it is ensured that O-ring seal has enough decrements
Maintain the seal request of self.Insulating joint in pipeline because of insulating joint overall structure, material
The restriction of the impact of performance, external environment, interior media impact etc., when insulating joint is subject in pipeline
During to excessive combined stress, the annular seal space formed between insulation board and metal flange necessarily becomes
Changing (annular seal space formed between 2,5,7), in the case of this, O-ring seal is because of the resilience of self
Can, can adjust along with the change of annular seal space, along with the increase of service life, O-ring seal by
The most aging, the set deformation volume performance of O-ring seal reduces, even when the stress that pipeline is excessive
It is applied on insulating joint, and when there is the resilience limit deforming more than O-ring seal of annular seal space,
Insulating joint will occur seepage, the phenomenon such as on-insulated.
Long-distance transport pipes preferably produce accumulation of static electricity on pipeline, and may be by thunder and lightning in multi-thunder area
Impact, for ensureing insulating joint in use, is not caused insulating joint close because of excessive loads
Sealing rubber ring lost efficacy, and needed to increase insulating joint electric discharge overload protection, current conventional overload protection dress
Putting and arrange point discharge in insulating joint internal cavities, inner tip electric discharge device is to insulating joint
In design, process and the link such as assembling adds more harsh requirement, and in insulating joint group
Install complete, during detecting, if detecting defective, this product cannot be carried out maintenance and
Change.The present invention is the security performance ensureing insulating joint, can reduce again relatively complicated design,
Mounting process, it is proposed that circumscribed overload protection arrangement, is ensureing that insulating joint is safe and stable
On the basis of, the most less unnecessary work.
Summary of the invention
For effectively overcoming the insulating joint using "O"-ring to seal in prior art to lose because of moment of flexure stress influence
Defect present in the situation of spirit and U-shaped O-ring seal installation process, the invention provides a kind of along with being subject to
To the increase of internal pressure, the O-ring seal that sealing property is the best, meeting is along with gap between forging and insulation board
Change automatically adjust, it is ensured that insulating joint is affected sealing when deforming by extraneous factor in pipeline
Energy；Simultaneously for ensureing that long-distance transport pipes cause insulating joint to puncture malfunctioning feelings because of the factor such as accumulation of static electricity or thunder and lightning
Condition, uses circumscribed overload protection arrangement, effectively avoids electric current and puncture the situation causing joint fails.
For achieving the above object, the invention provides following scheme: the application provides a kind of insulating joint, main
Outward flange to be included, inner flange, the first dead ring, both sides adapter and O-ring seal, the adapter point of described both sides
Not being the first adapter and the second adapter, described outward flange is connected with described first adapter, described inner flange and institute
Stating the second adapter to connect, described O-ring seal includes cushion rubber main body and rake, described rake and described glue
Having a U-shaped depression between circle main body, described cushion rubber main body is one-body molded with described rake, described the
One dead ring lateral symmetry is provided with two described O-ring seals, described first dead ring and described O-ring seal
It is positioned at the junction of described outward flange and described inner flange.
Optionally, described insulating joint also includes hooking circle, and described hook circle is positioned at described outward flange and described method
On blue lateral surface, the described circle that hooks is in having certain thickness L-type, and the bending place of described hook circle is interior with described
Flange side combines.
Optionally, described insulating joint also includes that the second dead ring, described second dead ring are positioned at described hook and enclose
The position that bending place is combined with described inner flange side.
Optionally, described insulating joint also includes that filler, described filler are placed on described hook and enclose and described interior method
The position that orchid contacts, described filler is epoxy filler.
Optionally, the cushion rubber main body of described O-ring seal is matrix, described cushion rubber main body and described rake
Noncontact end has radian, also has radian inside the tail end of described rake.
Optionally, described outward flange is respectively symmetrically at the side near described first dead ring with described inner flange
Being provided with a groove, two described O-ring seals are separately positioned in two grooves, said two fluid sealant
The outer side edges of cushion rubber main body of circle offsets with the inner side edge of described groove, the rake of said two O-ring seal
Two sides of tail end and described first dead ring abut against.
Optionally, the root of the rake of described O-ring seal is provided with interior with the junction of described cushion rubber main body
Putting spring, described built-in spring is built in described O-ring seal by press moulding mode.
Optionally, described insulating joint also includes two bolts and overload protection arrangement, and said two bolt divides
Not being welded on the lateral surface of described first adapter and described second adapter, described overload protection arrangement is by leading
Line is connected between said two bolt.
Present invention also provides a kind of method that described insulating joint is installed:
Described insulating joint, including outward flange, inner flange, the first dead ring, both sides adapter and O-ring seal,
The adapter of described both sides is respectively the first adapter and the second adapter, and described outward flange is connected with described first adapter,
Described inner flange is connected with described second adapter, and described O-ring seal includes cushion rubber main body and rake, described
A U-shaped depression, described cushion rubber main body and described rake one is had between rake and described cushion rubber main body
Molding, is provided with two described O-ring seals, described first dead ring in described first dead ring lateral symmetry
And described O-ring seal is positioned at the junction of described outward flange and described inner flange；
Described insulating joint also includes hooking circle, and the described circle that hooks is positioned at described outward flange and the outside of described inner flange
On face, described hook is enclosed in having certain thickness L-type, the bending place of described hook circle and described inner flange side
Combine；
Described insulating joint also include the second dead ring, described second dead ring be positioned at described Gou Quan bending place with
The position that described inner flange side combines；
Described method is for installing described insulating joint, and described method includes:
Described second dead ring is placed on the described bending place hooking circle, and described inner flange is hooked circle with described
Coordinate and install；
By the outward-dipping side of two described O-ring seals, both sides with described first dead ring are joined respectively
Close to install and form insulating barrier, described insulating barrier is arranged on described inner flange back to the one of described second dead ring
Side；
Again described outward flange is placed and enclose interior with described hook and be connected, finally by applying with described insulating barrier
Pretightning force, is welded into entirety by described outward flange and described hook circle.
The specific embodiment provided according to the present invention, the invention discloses techniques below effect:
1, the O-ring seal arranged in the application has good shock-absorbing capacity, it is possible to according to annular seal space size
By ensureing the feature of decrement under self rebound performance and internal pressure dual regulation；
2, reduction causes the factors such as excessive, the explosive decompression of moment of flexure stress to be brought because of various complex situations
Potential safety hazard；
3, external connection formula electric discharge device is used, weld bolt in adapter, connect overload by wire and protect
Protection unit, prevents thunder and lightning from hitting insulating joint and causes electric current to puncture joint, also avoid because producing on pipeline simultaneously
Accumulation of static electricity and the electric current that causes punctures joint phenomenon, it is ensured that the insulation function of insulating joint.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to enforcement
In example, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only
Some embodiments of the present invention, for those of ordinary skill in the art, are not paying creative work
On the premise of, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the overall schematic of the specific embodiment of the invention；
Fig. 2 is the partial schematic diagram of the specific embodiment of the invention；
Fig. 3 is the detail view that the present invention is embodied as middle O-ring seal；
Wherein, 1 first adapter；2 outward flanges；3 hook circle；4 O-ring seals；5 first dead rings；6
Two dead rings；7 inner flanges；8 fillers；9 second adapters；10 bolts；11 overload protection arrangements.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, be fully described by, it is clear that described embodiment be only a part of embodiment of the present invention rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
The every other embodiment obtained under property work premise, broadly falls into the scope of protection of the invention.
It is an object of the invention to provide a kind of along with being increased by internal pressure, the sealing that sealing property is the best
Cushion rubber, understands along with between forging and insulation board, the change in gap adjusts automatically, it is ensured that insulating joint is in pipeline
Sealing property when deforming is affected by extraneous factor；Simultaneously for ensureing that long-distance transport pipes are because of accumulation of static electricity or thunder
The factors such as electricity cause insulating joint to puncture malfunctioning situation, use circumscribed overload protection arrangement, effectively keep away
Exempt from electric current and puncture the situation causing joint fails.
Understandable for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from, below in conjunction with the accompanying drawings and
The present invention is further detailed explanation for detailed description of the invention.
Fig. 1 is the overall schematic of the specific embodiment of the invention；Fig. 2 is the local of the specific embodiment of the invention
Schematic diagram；Fig. 3 is the detail view that the present invention is embodied as middle O-ring seal.As Figure 1-3, the application
A kind of insulating joint is provided, mainly includes outward flange 2, inner flange the 7, first dead ring 5, both sides adapter
And O-ring seal, both sides adapter is respectively the first adapter 1 and the second adapter 9, outward flange 2 and the first adapter
1 connects, and inner flange 7 is connected with the second adapter 9, and O-ring seal includes cushion rubber main body and rake, tilts
Having a U-shaped depression between portion and cushion rubber main body, cushion rubber main body is one-body molded with rake, in the first insulation
Ring 5 lateral symmetry is provided with two O-ring seals, and the first dead ring 5 and O-ring seal are positioned at outward flange 2
Junction with inner flange 7.
The faying face of two flanges is provided with lip ring that is first dead ring 5, the first dead ring 5 both sides with
Being provided with the O-ring seal of symmetry between metal, form sealing insulator, this O-ring seal has the following characteristics that
One layer of U-shaped depression is wrapped up in this O-ring seal inner hub portion subpackage, has preferably axial buffer performance, makes
Insulating joint can preferably adapt to internal pressure in working environment and change the impact brought, especially at well head
The negative effect that cushion rubber is brought by explosive increase and decrease pressure；
It is to realize between the rake and inner recess of cushion rubber owing to sealing, thus coarse to seal surface
Spend less demanding, the most insensitive to the slight damage of seal surface, improve the reliable of insulating joint use
Property；
This O-ring seal is easy for installation, insulating joint work in, because of affected by external environment and material oneself
Body performance impact, when by pipeline concentrated stress bigger time, sealing surface generation trace between insulation board and forging
During change, the pig sealing position of cushion rubber, under the dual function of internal pressure and self rebound performance, meets and holds
The continuous requirement sealed；
Use this O-ring seal can be effectively improved insulating joint and cause malformation because of excessive moment of flexure stress
And explosive decompression causes the situation of seal failure.
This insulating joint also includes hooking circle 3, hooks circle 3 and is positioned on the lateral surface of outward flange 2 and inner flange 7,
Hook circle 3 is in having certain thickness L-type, and the bending place hooking circle 3 combines with inner flange 7 side so that
Outward flange 2 links together with inner flange 7, and compactness is higher.
This insulating joint also includes that the second dead ring 6, the second dead ring 6 are positioned at hook circle 3 bending places and method
The position that blue 7 sides combine, can make the combination between hook circle 3 and inner flange 7 tightr, again can be right
The effect of insulation is played in the outside of insulating joint.
This insulating joint also includes that filler 8, filler 8 are placed on and hooks the position that circle 3 contacts with inner flange 7,
Filler 8 is epoxy filler.
The cushion rubber main body of this O-ring seal is matrix, and cushion rubber main body has radian with the noncontact end of rake,
Also there is inside the tail end of rake radian.
Outward flange 2 and described inner flange 7 are respectively symmetrically at the side near the first dead ring 5 that to be provided with one recessed
Groove, two O-ring seals are separately positioned in two grooves, the outer side edges of the cushion rubber main body of two O-ring seals
Offset with the inner side edge of groove, the tail end of the rake of two O-ring seals and two sides of the first dead ring 5
While abut against, the rake of O-ring seal by time intrinsic pressure, rake along with being increased by internal pressure,
Sealing property is the best.
The root of the rake of this O-ring seal is provided with built-in spring, built-in bullet with the junction of cushion rubber main body
Spring is built in O-ring seal by press moulding mode.
This insulating joint also includes that two bolts 10 and overload protection arrangement 11, two bolts 10 weld respectively
Being connected on the lateral surface of the first adapter 1 and the second adapter 9, overload protection arrangement 11 is connected to by wire
Between two bolts 10.
Present invention also provides a kind of method that above-mentioned insulating joint is installed:
Insulating joint, including outward flange 2, inner flange the 7, first dead ring 5, both sides adapter and fluid sealant
Circle, both sides adapter is respectively the first adapter 1 and the second adapter 9, and outward flange 2 is connected with the first adapter 1,
Inner flange 7 is connected with the second adapter 9, and O-ring seal includes cushion rubber main body and rake, rake and cushion rubber
Having a U-shaped depression between main body, cushion rubber main body is one-body molded with rake, in the first dead ring 5 both sides
Being symmetrically installed with two O-ring seals, the first dead ring 5 and O-ring seal are positioned at outward flange 2 and inner flange 7
Junction；
This insulating joint also includes hooking circle 3, hooks circle 3 and is positioned on the lateral surface of outward flange 2 and inner flange 7,
Hook circle 3 is in having certain thickness L-type, and the bending place hooking circle 3 combines with inner flange 7 side；
This insulating joint also includes that the second dead ring 6, the second dead ring 6 are positioned at hook circle 3 bending places and method
The position that blue 7 sides combine；
The method is for installing insulating joint, and the method includes:
Second dead ring 6 is placed on the bending place hooking circle 3, and inner flange 7 is coordinated installation with hooking circle 3；
By the outward-dipping side of two O-ring seals, both sides with the first dead ring 5 coordinate installation respectively
Form insulating barrier, insulating barrier is arranged on the inner flange 7 side back to the second dead ring 6；
Again outward flange 2 is placed with hook circle 3 in and be connected with insulating barrier, finally by apply pretightning force,
Outward flange 2 is welded into entirety with the described circle 3 that hooks.
The self structure of the O-ring seal arranged in the application gives it and automatically can adjust according to internal pressure
The performance of joint so that be suitable for the operating mode of the insulating joint explosive increase and decrease pressure in pipeline, and when pipe
When uniaxial stress concentrates the sealing malformation caused, O-ring seal is double according to self rebound performance and internal pressure
Sealing property can be fully met, it is ensured that it can seal request in complex environment under reconditioning.
In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is
With the difference of other embodiments, between each embodiment, identical similar portion sees mutually.For
For system disclosed in embodiment, owing to it corresponds to the method disclosed in Example, so the comparison described
Simply, relevant part sees method part and illustrates.
Principle and embodiment that this practicality is invented by specific case used herein are set forth, above
The explanation of embodiment is only intended to help to understand method and the core concept thereof that this practicality is invented；Simultaneously for
One of ordinary skill in the art, according to the thought of the present invention, the most all
Will change.In sum, this specification content should not be construed as limitation of the present invention.
Claims (9)
1. an insulating joint, it is characterised in that: include outward flange, inner flange, the first dead ring, two
Side joint pipe and O-ring seal, described both sides adapter be respectively first adapter with second adapter, described outward flange with
Described first adapter connects, and described inner flange is connected with described second adapter, and described O-ring seal includes cushion rubber
Main body and rake, have a U-shaped depression, described cushion rubber master between described rake and described cushion rubber main body
Body is one-body molded with described rake, is provided with two described fluid sealants in described first dead ring lateral symmetry
Circle, described first dead ring and described O-ring seal are positioned at the junction of described outward flange and described inner flange.
A kind of insulating joint the most according to claim 1, it is characterised in that: described insulating joint is also
Including hooking circle, the described circle that hooks is positioned on the lateral surface of described outward flange and described inner flange, and the described circle that hooks is in tool
Certain thickness L-type, the bending place of described hook circle is had to combine with described inner flange side.
A kind of insulating joint the most according to claim 2, it is characterised in that: described insulating joint is also
Including the second dead ring, described second dead ring is positioned at described Gou Quan bending place and is combined with described inner flange side
Position.
A kind of insulating joint the most according to claim 2, it is characterised in that: described insulating joint is also
Including filler, described filler is placed on described hook and encloses the position contacted with described inner flange, and described filler is
Epoxy filler.
A kind of insulating joint the most according to claim 1, it is characterised in that: described O-ring seal
Cushion rubber main body is matrix, and described cushion rubber main body has radian, described inclination with the noncontact end of described rake
Also there is inside the tail end in portion radian.
A kind of insulating joint the most according to claim 1, it is characterised in that: described outward flange and institute
Stating inner flange and be provided with a groove being respectively symmetrically near the side of described first dead ring, described two close
Sealing rubber ring is separately positioned in two grooves, and the outer side edges of the cushion rubber main body of said two O-ring seal is with described
The inner side edge of groove offsets, the tail end of the rake of said two O-ring seal and the two of described first dead ring
Individual side abuts against.
A kind of insulating joint the most according to claim 1, it is characterised in that: described O-ring seal
The root of rake is provided with built-in spring with the junction of described cushion rubber main body, and described built-in spring passes through mould
Pressure mode is built in described O-ring seal.
A kind of insulating joint the most according to claim 1, it is characterised in that: described insulating joint is also
Including two bolts and overload protection arrangement, said two bolt is respectively welded at described first adapter with described
On the lateral surface of the second adapter, described overload protection arrangement is connected between said two bolt by wire.
9. the installation method of an insulating joint, it is characterised in that:
Described insulating joint, including outward flange, inner flange, the first dead ring, both sides adapter and O-ring seal,
The adapter of described both sides is respectively the first adapter and the second adapter, and described outward flange is connected with described first adapter,
Described inner flange is connected with described second adapter, and described O-ring seal includes cushion rubber main body and rake, described
A U-shaped depression, described cushion rubber main body and described rake one is had between rake and described cushion rubber main body
Molding, is provided with two described O-ring seals, described first dead ring in described first dead ring lateral symmetry
And described O-ring seal is positioned at the junction of described outward flange and described inner flange；
Described insulating joint also includes hooking circle, and the described circle that hooks is positioned at described outward flange and the outside of described inner flange
On face, described hook is enclosed in having certain thickness L-type, the bending place of described hook circle and described inner flange side
Combine；
Described insulating joint also include the second dead ring, described second dead ring be positioned at described Gou Quan bending place with
The position that described inner flange side combines；
Described method is for installing described insulating joint, and described method includes:
Described second dead ring is placed on the described bending place hooking circle, and described inner flange is hooked circle with described
Coordinate and install；
By the outward-dipping side of two described O-ring seals, both sides with described first dead ring are joined respectively
Close to install and form insulating barrier, described insulating barrier is arranged on described inner flange back to the one of described second dead ring
Side；
Again described outward flange is placed and enclose interior with described hook and be connected, finally by applying with described insulating barrier
Pretightning force, is welded into entirety by described outward flange and described hook circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610394366.0A CN105840934A (en) | 2016-05-27 | 2016-05-27 | Insulating joint and installation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610394366.0A CN105840934A (en) | 2016-05-27 | 2016-05-27 | Insulating joint and installation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105840934A true CN105840934A (en) | 2016-08-10 |
Family
ID=56575533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610394366.0A Pending CN105840934A (en) | 2016-05-27 | 2016-05-27 | Insulating joint and installation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105840934A (en) |
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| CN2559147Y (en) * | 2002-03-21 | 2003-07-02 | 北京永逸舒克防腐蚀技术有限公司 | Monolithic insulation joint |
| CN2893366Y (en) * | 2006-04-25 | 2007-04-25 | 北京永逸舒克防腐蚀技术有限公司 | Sealed insulating joint |
| CN203023478U (en) * | 2012-12-28 | 2013-06-26 | 北京华德广研密封件有限公司 | Lip seal assembly |
| CN203035949U (en) * | 2012-12-28 | 2013-07-03 | 北京华德广研密封件有限公司 | Lip seal ring with support spring at lip |
| CN203036127U (en) * | 2013-01-15 | 2013-07-03 | 沈阳永业实业有限公司 | Welding-free insulation connector |
| CN203730957U (en) * | 2014-02-27 | 2014-07-23 | 沈阳鑫联石化设备有限公司 | Insulated joint |
| US20140246852A1 (en) * | 2004-05-14 | 2014-09-04 | Victaulic Company | Combination Sealing Member and Pipe Couplings |
| CN205781565U (en) * | 2016-05-27 | 2016-12-07 | 沈阳鑫联石化设备有限公司 | A kind of insulating joint |
-
2016
- 2016-05-27 CN CN201610394366.0A patent/CN105840934A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2559147Y (en) * | 2002-03-21 | 2003-07-02 | 北京永逸舒克防腐蚀技术有限公司 | Monolithic insulation joint |
| US20140246852A1 (en) * | 2004-05-14 | 2014-09-04 | Victaulic Company | Combination Sealing Member and Pipe Couplings |
| CN2893366Y (en) * | 2006-04-25 | 2007-04-25 | 北京永逸舒克防腐蚀技术有限公司 | Sealed insulating joint |
| CN203023478U (en) * | 2012-12-28 | 2013-06-26 | 北京华德广研密封件有限公司 | Lip seal assembly |
| CN203035949U (en) * | 2012-12-28 | 2013-07-03 | 北京华德广研密封件有限公司 | Lip seal ring with support spring at lip |
| CN203036127U (en) * | 2013-01-15 | 2013-07-03 | 沈阳永业实业有限公司 | Welding-free insulation connector |
| CN203730957U (en) * | 2014-02-27 | 2014-07-23 | 沈阳鑫联石化设备有限公司 | Insulated joint |
| CN205781565U (en) * | 2016-05-27 | 2016-12-07 | 沈阳鑫联石化设备有限公司 | A kind of insulating joint |
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Application publication date: 20160810 |
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| RJ01 | Rejection of invention patent application after publication |