CN107387924A - A kind of anti-rotation lock with guide function for expansion joint - Google Patents
A kind of anti-rotation lock with guide function for expansion joint Download PDFInfo
- Publication number
- CN107387924A CN107387924A CN201710702006.7A CN201710702006A CN107387924A CN 107387924 A CN107387924 A CN 107387924A CN 201710702006 A CN201710702006 A CN 201710702006A CN 107387924 A CN107387924 A CN 107387924A
- Authority
- CN
- China
- Prior art keywords
- torsion
- adapter
- elongated hole
- expansion joint
- guide function
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
-
- 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
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/06—Protection of pipes or objects of similar shape against external or internal damage or wear against wear
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
A kind of anti-rotation lock with guide function for expansion joint, including anti-torsion adapter one, anti- torsion adapter two and anti-torsion block, anti- one end for reversing adapter one is fixedly connected with import tube assembly, its other end is free end, anti- one end for reversing adapter two is fixedly connected with outlet tube assembly, its other end is free end, the anti-free end for reversing adapter two is set in outside the free end of anti-torsion adapter one, the gap for flow of media is formed between anti-torsion adapter two and anti-torsion adapter one, multiple slip elongated holes are opened up along the circumference of anti-torsion adapter two, along circumferentially disposed multiple anti-torsion blocks being correspondingly arranged with sliding elongated hole of anti-torsion adapter one, the present invention not only prevents expansion joint from reversing, there is guide function simultaneously, expansion joint can be effectively avoided to bear torsional load effect.Compared with prior art, the present invention can significantly improve the operation stability of service life and pipe-line system.
Description
Technical field
The present invention relates to expansion joint field, particularly relates to a kind of dress of the anti-torsion with guide function for expansion joint
Put.
Background technology
Metal corrugated pipe expansion joint is that modern heated pipe network and equipment carry out one of critical component of thermal compensation, has displacement
The effect of compensation, vibration and noise reducing and sealing.At present be widely used to metallurgy, oil refining, petrochemical industry, electric power (thermoelectricity, water power and
Nuclear power), heat supply network, ship, building, cement, heating pipeline, craft piping, machine, pump and the pressure of each industrial department such as aerospace and machinery
In the equipment such as force container.
The corrugated flexible member that bellows is made up of individual layer or multilayer thin-wall metal, it has one or more ripple
Line, axial displacement, lateral displacement, angular displacement and torsional displacement can be compensated, wherein the torsional displacement that can be born is extremely limited,
And generally refusal expansion joint produces torsional displacement in engineer applied.
（1）
（2）
（3）
Wherein:
The numerical value of T-moment of torsion, unit are Newton meter（N*m）；
The numerical value of-bellows unicast length of run, unit are millimeter（mm）, wherein q is the pitch of waves, and h is wave height；
The numerical value of the wave number of N-mono- bellows；
N-thickness isThe numerical value of the bellows material number of plies；
The numerical value of the nominal thickness of-bellows layer of material, unit are millimeter（mm）；
The numerical value of the coefficient of rigidity of bellows material under-design temperature, unit are MPa（MPa）；
The numerical value of bellows material modulus of elasticity under-design temperature, unit are MPa（MPa）；
The numerical value of bellows material allowable stress under-design temperature, unit are MPa（MPa）；
The numerical value of-bellows straight section internal diameter, unit are millimeter（mm）
The numerical value of-torsion angle, unit are radian（rad）
The numerical value of-torsional shearing stress, unit are radian（MPa）
The Poisson's ratio of-material.
Pass through formula（1）、（2）, (3) understand that torsional displacement makes bellows produce very high shear stress, easily causes ripple
Pipe is damaged, it is necessary to set fixed support or guiding trestle to avoid torsional load from acting on expansion joint, causes construction costs cost
Increase.
The content of the invention
In order to solve the above technical problems, the present invention is provided to the anti-rotation lock with guide function of expansion joint, no
Only prevent expansion joint from reversing, while there is guide function, can effectively avoid expansion joint from bearing torsional load effect.Compared to existing skill
Art, the present invention can significantly improve the operation stability of service life and pipe-line system.
To realize above-mentioned technical purpose, used technical scheme is：It is a kind of that there is guide function for expansion joint
Anti-rotation lock, including anti-torsion adapter one, anti-torsion adapter two and anti-torsion block, anti-one end for reversing adapter one and import
Tube assembly is fixedly connected, and its other end is free end, and anti-one end for reversing adapter two is fixedly connected with outlet tube assembly, and its is another
Hold as free end, the anti-internal diameter size for reversing adapter two is more than the external diameter size of anti-torsion adapter one, anti-torsion adapter two certainly
It is set in by end outside the free end of anti-torsion adapter one, is formed between anti-torsion adapter two and anti-torsion adapter one for medium flow field
Logical gap, along it is anti-torsion adapter two circumference open up multiple slip elongated holes, along it is anti-torsion adapter one it is circumferentially disposed it is multiple and
The anti-torsion block that elongated hole is correspondingly arranged is slided, each anti-torsion block stretches into one and slided in elongated hole and with anti-torsion adapter one
Axial movement move sliding in elongated hole, the anti-radially opposite sides for reversing block and slide elongated hole and radial clearance be present, or, along anti-
The circumference for reversing adapter one opens up multiple slip elongated holes, and along anti-torsion adapter two circumferentially disposed, multiple elongated hole is corresponding sets with slip
The anti-torsion block put, each anti-block that reverses are stretched into a slip elongated hole and with the anti-axial movement for reversing adapter two in cunning
Moved in dynamic elongated hole, the anti-radially opposite sides for reversing block and slip elongated hole have radial clearance.
The limiting block of the present invention for reversing the setting of adapter two and preventing anti-torsion block from being skidded off from the aperture for sliding elongated hole
Block.
Positive stop of the present invention, which is arranged on, to be slided in elongated hole or slides above elongated hole.
The section configuration of the present invention for sliding elongated hole is identical with the section configuration of anti-torsion block, anti-torsion block
Section configuration is rectangle or rectangle.
Anti- torsion adapter one of the present invention and inlet tube components welding.
Anti- torsion adapter one of the present invention is structure as a whole with import tube assembly.
Anti- torsion adapter two of the present invention and outlet components welding.
Anti- torsion adapter two of the present invention is structure as a whole with outlet tube assembly.
The value of radial clearance is existing for the anti-radially opposite sides for reversing block of the present invention and slip elongated hole
, wherein,For expansion joint torsion angle numerical value, n is the number for sliding elongated hole.
Present invention has the advantages that：The present invention can avoid torsional displacement from bellows is produced very high shear stress, together
When there is guide function, reduce original expansion joint fixation Zhi Huiyu guiding trestles set, save construction costs cost.In addition, by
Be connected as a single entity in anti-rotation lock and inlet/outlet pipe, bellows can be made to be washed away from medium, play water conservancy diversion, it is wear-resisting and extend it is swollen
Swollen section service life.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is Fig. 1 anti-rotation lock side structure schematic view；
Fig. 3 is another structural representation of the present invention；
Fig. 4 is Fig. 3 anti-rotation lock side structure schematic view；
Fig. 5 is the first setting structure schematic diagram of the positive stop of the present invention；
Fig. 6 is second of setting structure schematic diagram of the positive stop of the present invention；
Fig. 7 is the third side structure schematic view of anti-rotation lock of the present invention；
Fig. 8 is 4th kind of side structure schematic view of anti-rotation lock of the present invention；
In figure：1st, import tube assembly, 2, bellows, 3, positive stop, 4, anti-rotation lock, 4-1, anti-torsion adapter one, 4-2,
Anti- torsion block, 4-3, it is anti-torsion adapter two, 5, outlet tube assembly, 6, slip elongated hole.
Embodiment
A kind of anti-rotation lock with guide function for expansion joint, it is swollen for the single axial as shown in 1,3
Swollen section, it can also be used to the expansion joint for needing to prevent torsional displacement of other patterns, such as outer pressure axial type, external pressure straight pipe type, bypass
Straight pipe type etc. is in GB/T12777-2008《Metal corrugated pipe expansion joint general technical specifications》In the expansion of various types listed
Section.
As shown in Figure 1, 2, a kind of anti-rotation lock with guide function for expansion joint, including anti-torsion adapter one
4-1, the anti-torsion 4-3 of adapter two and anti-torsion block 4-2, anti-one end for reversing the 4-1 of adapter one is fixed with import tube assembly 1 to be connected
Connect, its other end is free end, and anti-one end for reversing the 4-3 of adapter two is fixedly connected with outlet tube assembly 5, and its other end is freely
End, anti-rotation lock are connected as a single entity with inlet/outlet pipe, bellows can be made to be washed away from medium, play water conservancy diversion, wear-resisting and extension
Expansion joint service life, so as to improve the security of pipeline system.The anti-internal diameter size for reversing the 4-3 of adapter two is more than anti-torsion and connect
The 4-1 of pipe one external diameter size, the anti-free end for reversing the 4-3 of adapter two are set in outside anti-torsion adapter one 4-1 free end, anti-torsion
The gap for flow of media is formed between the 4-3 of transfer tube two and anti-torsion adapter one 4-1, along anti-torsion adapter two 4-3 week
To multiple slip elongated holes 6 are opened up, along anti-torsion adapter one 4-1 circumferentially disposed multiple anti-torsions being correspondingly arranged with sliding elongated hole 6
Turn block 4-2, each anti-torsion block 4-2 stretches into one and slides in elongated hole 6 and exist with anti-torsion adapter one 4-1 axial movement
Slide and moved in elongated hole 6, the anti-radially opposite sides for reversing block 4-2 and slip elongated hole 6 have radial clearance.
As shown in Figure 3,4, a kind of anti-rotation lock with guide function for expansion joint, including anti-torsion adapter one
4-1, the anti-torsion 4-3 of adapter two and anti-torsion block 4-2, anti-one end for reversing the 4-1 of adapter one is fixed with import tube assembly 1 to be connected
Connect, its other end is free end, and anti-one end for reversing the 4-3 of adapter two is fixedly connected with outlet tube assembly 5, and its other end is freely
End, the anti-internal diameter size for reversing adapter two 4-3 are more than anti-torsion adapter one 4-1 external diameter size, anti-torsion adapter two 4-3 certainly
It is set in by end outside anti-torsion adapter one 4-1 free end, is formed between the anti-torsion 4-3 of adapter two and anti-torsion adapter one 4-1
For flow of media gap, multiple slip elongated holes 6 are opened up along anti-torsion adapter one 4-1 circumference, along anti-torsion adapter two 4-3's
Circumferentially disposed multiple anti-torsion block 4-2 being correspondingly arranged with sliding elongated hole 6, each anti-torsion block 4-2 stretch into a slip
Moved in elongated hole 6 and with anti-torsion adapter two 4-3 axial movement in slip elongated hole 6, the anti-radially opposite sides for reversing block 4-2
Radial clearance be present with elongated hole 6 is slided.
As shown in Figure 2,4, slide elongated hole 6 and reverse the logical of the 4-3 inside and outside walls of adapter two to penetrate the anti-torsion 4-1 of adapter one or anti-
Hole, as shown in 7,8, slide elongated hole 6 and be the slotted hole opened up along anti-torsion adapter one 4-1 outer surface or reverse adapter two along anti-
4-3 inner surface offers slotted hole, and the length for sliding elongated hole 6 can be according to the anti-torsion 4-1 of adapter one and anti-torsion adapter two 4-3
Caused relative displacement is configured, and the width of slip elongated hole 6 is constant from aperture to bottom hole, when displacement is little, slides elongated hole 6
Meet anti-torsion block 4-2 displacement, will not be removed from sliding in elongated hole 6, the anti-torsion 4-1 of adapter one and anti-torsion adapter
Axially opposing slip between two 4-3, to compensate pipeline tensile and compress displacement, it can be used as guide shell use.
When excessive axial displacement effect, reversing to set on the 4-3 of adapter two prevents anti-torsion block 4-2 from slip elongated hole
The positive stop 3 that 6 aperture skids off, the anti-side for reversing block 4-2 are limited by positive stop 3, and opposite side is grown by sliding
The bottom hole in hole 6 is limited.
As shown in Figure 5,6, positive stop 3, which may be provided at, slides in elongated hole 6 or slides the top of elongated hole 6, when positive stop 3 is set
Put when sliding in elongated hole 6, can be first from the anti-torsion 4-1 of adapter one or anti-torsion adapters two 4-3 end from technological angle easy to install
Head, which opens up, slides elongated hole 6, and slip elongated hole 6 now be gap, then installation settings has the anti-anti- torsion adapter one for reversing block 4-2
4-1 or anti-reverses the 4-3 of adapter two, then the aperture welding upper limit block 3 in slip elongated hole 6, another process implementation method are,
Offer slip elongated hole 6 and do not open up to the anti-torsion 4-1 of adapter one or anti-the free end port for reversing the 4-3 of adapter two, carry limited
Position block, i.e. positive stop reverse the 4-3 of adapter two with the anti-torsion 4-1 of adapter one or anti-and are structure as a whole；When positive stop 3 is set
Slided sliding also be arranged on above elongated hole 6 below elongated hole 6, the principle of installation is identical, is to slide the anti-of the both sides of elongated hole 6
The tube wall for reversing the 4-1 of adapter one or anti-torsion adapters two 4-3 is welded for fixing point, to limit anti-torsion block 4-2
Position.
It is identical with anti-torsion block 4-2 section configuration to slide the section configuration of elongated hole 6, the anti-section for reversing block 4-2
Rectangle or rectangle are shaped as, can also use other shapes, as long as anti-torsion and guide function can be met.
The described anti-4-1 of torsion adapter one welds with import tube assembly 1, and this kind of structure is the anti-torsion 4-1 of adapter one with entering
Mouth tube assembly 1 is single two pipes, carries out welding mutual assembling.
The described anti-4-1 of torsion adapter one is structure as a whole with import tube assembly 1, and this kind of structure is by anti-torsion adapter one
4-1 and 1 integral straight forming of import tube assembly, reduce packaging technology.
The described anti-4-3 of torsion adapter two welds with outlet tube assembly 5, and the anti-torsion 4-3 of adapter two is with outlet tube assembly 5
Single two pipes, carry out welding mutual assembling.
The described anti-4-3 of torsion adapter two is structure as a whole with outlet tube assembly 5, and this kind of structure is by anti-torsion adapter two
4-3 and outlet 5 integral straight forming of tube assembly, reduce packaging technology.
Radial clearance existing for described anti-torsion block 4-2 radially opposite sides and slip elongated hole 6, wherein,
For expansion joint torsion angle numerical value, n is the number for sliding elongated hole.
Claims (9)
- A kind of 1. anti-rotation lock with guide function for expansion joint, it is characterised in that：Including anti-torsion adapter one（4- 1）, it is anti-torsion adapter two（4-3）With anti-torsion block（4-2）, anti-torsion adapter one（4-1）One end and import tube assembly（1） It is fixedly connected, its other end is free end, anti-torsion adapter two（4-3）One end with outlet tube assembly（5）It is fixedly connected, its is another One end is free end, anti-torsion adapter two（4-3）Internal diameter size be more than it is anti-torsion adapter one（4-1）External diameter size, anti-torsion Transfer tube two（4-3）Free end be set in it is anti-torsion adapter one（4-1）Free end outside, it is anti-torsion adapter two（4-3）With it is anti- Reverse adapter one（4-1）Between form the gap for flow of media, along it is anti-torsion adapter two（4-3）Circumference open up multiple cunnings Dynamic elongated hole（6）, along anti-torsion adapter one（4-1）It is circumferentially disposed it is multiple with slide elongated hole（6）The anti-torsion block being correspondingly arranged （4-2）, each anti-torsion block（4-2）Stretch into a slip elongated hole（6）It is interior and with it is anti-torsion adapter one（4-1）Axial movement Sliding elongated hole（6）Interior movement, anti-torsion block（4-2）Radially opposite sides and slide elongated hole（6）Radial clearance, Huo,Yan be present Anti- torsion adapter one（4-1）Circumference open up multiple slip elongated holes（6）, along anti-torsion adapter two（4-3）It is circumferentially disposed multiple With sliding elongated hole（6）The anti-torsion block being correspondingly arranged（4-2）, each anti-torsion block（4-2）Stretch into a slip elongated hole（6） It is interior and with it is anti-torsion adapter two（4-3）Axial movement slide elongated hole（6）Interior movement, anti-torsion block（4-2）Radial direction two Side and slip elongated hole（6）Radial clearance be present.
- A kind of 2. anti-rotation lock with guide function for expansion joint as claimed in claim 1, it is characterised in that：Institute The torsion adapter two stated（4-3）Upper setting prevents anti-torsion block（4-2）From slip elongated hole（6）The positive stop that skids off of aperture （3）.
- A kind of 3. anti-rotation lock with guide function for expansion joint as claimed in claim 2, it is characterised in that：Institute The positive stop stated（3）It is arranged on slip elongated hole（6）Interior or slip elongated hole（6）Top.
- A kind of 4. anti-rotation lock with guide function for expansion joint as claimed in claim 1, it is characterised in that：Institute The slip elongated hole stated（6）Section configuration and anti-torsion block（4-2）Section configuration it is identical, anti-torsion block（4-2）It is disconnected Face is shaped as rectangle or rectangle.
- A kind of 5. anti-rotation lock with guide function for expansion joint as claimed in claim 1, it is characterised in that：Institute The anti-torsion adapter one stated（4-1）With import tube assembly（1）Welding.
- A kind of 6. anti-rotation lock with guide function for expansion joint as claimed in claim 1, it is characterised in that：Institute The anti-torsion adapter one stated（4-1）With import tube assembly（1）It is structure as a whole.
- A kind of 7. anti-rotation lock with guide function for expansion joint as claimed in claim 1, it is characterised in that：Institute The anti-torsion adapter two stated（4-3）With exporting tube assembly（5）Welding.
- A kind of 8. anti-rotation lock with guide function for expansion joint as claimed in claim 1, it is characterised in that：Institute The anti-torsion adapter two stated（4-3）With exporting tube assembly（5）It is structure as a whole.
- A kind of 9. anti-rotation lock with guide function for expansion joint as claimed in claim 1, it is characterised in that：Institute The anti-torsion block stated（4-2）Radially opposite sides and slide elongated hole（6）The value of existing radial clearance is, wherein, For expansion joint torsion angle numerical value, n is the number for sliding elongated hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710702006.7A CN107387924A (en) | 2017-08-16 | 2017-08-16 | A kind of anti-rotation lock with guide function for expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710702006.7A CN107387924A (en) | 2017-08-16 | 2017-08-16 | A kind of anti-rotation lock with guide function for expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107387924A true CN107387924A (en) | 2017-11-24 |
Family
ID=60353215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710702006.7A Withdrawn CN107387924A (en) | 2017-08-16 | 2017-08-16 | A kind of anti-rotation lock with guide function for expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107387924A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108360639A (en) * | 2018-05-09 | 2018-08-03 | 科勒(中国)投资有限公司 | A kind of closestool |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0108829B1 (en) * | 1982-11-16 | 1987-08-12 | IWK Regler und Kompensatoren GmbH | Axial compensator |
| US5370427A (en) * | 1994-01-10 | 1994-12-06 | General Electric Company | Expansion joint for fluid piping with rotation prevention member |
| CN2273802Y (en) * | 1994-10-08 | 1998-02-04 | 上海亚达仪表机械厂 | Corrugated tube compensation arrangement |
| CN2329832Y (en) * | 1998-01-26 | 1999-07-21 | 苏文玉 | Axial corrugated expansion joint anti-torsion spacing structure for pipeline |
| CN2351651Y (en) * | 1998-09-07 | 1999-12-01 | 上海红枫波纹管制造公司 | Hinge sealing expansion joint |
| CN103775780A (en) * | 2012-10-25 | 2014-05-07 | 李敏 | Anti-torsion corrugated compensator |
-
2017
- 2017-08-16 CN CN201710702006.7A patent/CN107387924A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0108829B1 (en) * | 1982-11-16 | 1987-08-12 | IWK Regler und Kompensatoren GmbH | Axial compensator |
| US5370427A (en) * | 1994-01-10 | 1994-12-06 | General Electric Company | Expansion joint for fluid piping with rotation prevention member |
| CN2273802Y (en) * | 1994-10-08 | 1998-02-04 | 上海亚达仪表机械厂 | Corrugated tube compensation arrangement |
| CN2329832Y (en) * | 1998-01-26 | 1999-07-21 | 苏文玉 | Axial corrugated expansion joint anti-torsion spacing structure for pipeline |
| CN2351651Y (en) * | 1998-09-07 | 1999-12-01 | 上海红枫波纹管制造公司 | Hinge sealing expansion joint |
| CN103775780A (en) * | 2012-10-25 | 2014-05-07 | 李敏 | Anti-torsion corrugated compensator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108360639A (en) * | 2018-05-09 | 2018-08-03 | 科勒(中国)投资有限公司 | A kind of closestool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105910474B (en) | More tubular sheet heat exchangers | |
| WO1990010812A1 (en) | Fluid-tight joints | |
| CN108180087B (en) | High-pressure bearing post-pump fuel swing device | |
| CN201462207U (en) | Sealing device between protective well through hole and underground pipeline | |
| CN107387924A (en) | A kind of anti-rotation lock with guide function for expansion joint | |
| CN103968179B (en) | Novel plastic pipeline compensator | |
| CN203979744U (en) | Rubber sealing bypass pressure balancing sleeve compensator | |
| CN207261905U (en) | A kind of expansion joint | |
| CN104110553A (en) | Anti-corrosion high-pressure corrugated pipe compensator | |
| CN103307401A (en) | Double-water-cooling expansion joint | |
| CN105546260A (en) | Metal compensator for reinforced circulating fluid bed boiler | |
| CN205371923U (en) | Metallic bellow expansion joint | |
| CN205991278U (en) | A kind of external pressure straight-pipe pressure balanced expansion joint for absorbing compound displacement | |
| CN105257940A (en) | Expansion joint used for high temperature and high pressure pipeline | |
| CN209856576U (en) | Steam generator with corrugated pipe connecting structure and double-flow-channel structure | |
| US20220163142A1 (en) | Coupling | |
| JPS62248804A (en) | Adjusting device for sealing part clearance of turbine | |
| CN209511398U (en) | A kind of big axial compensator of lateral type | |
| CN205640016U (en) | Universal pressure balance type metal expansion joint | |
| US2391900A (en) | Pressure sealing joint | |
| CN207334064U (en) | A kind of expansion joint | |
| CN201277398Y (en) | Steel pipe expansion joint | |
| CN104061398B (en) | The processing method of rubber sealing bypass pressure balancing sleeve compensator | |
| CN209196339U (en) | A kind of sealing structure for pipeline connection | |
| CN2151339Y (en) | Pipeline sealing connector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171124 |