CN101169206A - Self-sealing rotary compensator - Google Patents
Self-sealing rotary compensator Download PDFInfo
- Publication number
- CN101169206A CN101169206A CNA200710190687XA CN200710190687A CN101169206A CN 101169206 A CN101169206 A CN 101169206A CN A200710190687X A CNA200710190687X A CN A200710190687XA CN 200710190687 A CN200710190687 A CN 200710190687A CN 101169206 A CN101169206 A CN 101169206A
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- CN
- China
- Prior art keywords
- sealing
- housing
- wall
- shell
- self
- 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.)
- Pending
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- 238000007789 sealing Methods 0.000 title claims abstract description 20
- 239000003566 sealing material Substances 0.000 claims abstract description 27
- 210000004907 gland Anatomy 0.000 claims abstract description 8
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 210000000664 rectum Anatomy 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
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- Sealing Devices (AREA)
Abstract
The invention discloses a self-sealing rotary compensator which comprises a radial rotary structure and a sealing axial compensation structure. The radial rotating structure is composed of a shell, a sealing material, a gland and a circular ring which are sleeved on the outer wall of the inner pipe, and the right end of the shell is connected with the reducer pipe in a sealing mode. The sealing axial elastic compensation structure is composed of a bolt string connection gland, a shell, a spring and a pressing disc in clearance fit with the outer wall of the right end of the shell. The circular ring is arranged between the inner pipe and the end face of the step in the shell to form a plane bearing. Radial through holes are uniformly distributed on the outer wall between the left end flange of the shell and the inner step, and the outer end part of each radial through hole is provided with a screw plug. If leakage occurs in the operation process, the sealing materials are respectively replenished on line from the radial through holes by respectively dismounting the screw plugs under the state of no stop, so that the economic loss caused by stop maintenance during non-overhaul period is avoided. The invention is especially suitable for the rotary compensator matched with a large-scale heat distribution pipeline.
Description
Technical field
The present invention relates to a kind of compensation of pipeline device, particularly a kind of whirl compensator of realizing heat distribution pipeline longitudinal balance or compensation by the relative rotation of interior pipe with housing.
Background technique
Whirl compensator is a kind of compensation of pipeline device most widely used in the modern heat distribution pipeline, relative longitudinal balance or the compensation of rotating the realization heat distribution pipeline with housing of pipe in it utilizes.In the process that realizes these functions, outer wall of inner tube has relative movement with the sealing material that matches, and must cause the slight mechanical abrasion of sealing material.Prior art China Patent No. 200520074933.1 disclosed " maintenance-free rotary compensator " has seal shaft to the elastic compensating structure, and this compensator can give sealing compensation automatically.But after the sealing material excessive wear, can not online additional sealing material, after prior art can only be waited to shut down, unload whirl compensator and replenish sealing material and could recover normal.Because heat distribution pipeline shutdown maintenance easily in running, thus the time see that prior art be with " disease " to move in heat distribution pipeline.
Summary of the invention
The present invention is primarily aimed at the deficiency that prior art can not online additional sealing material, proposes a kind of simple in structure, rotation flexibly, easily the self-sealing rotary compensator of online additional sealing material.
The present invention is achieved through the following technical solutions technical goal.
A kind of self-sealing rotary compensator, it comprises that radially rotational structure and seal shaft are to the elastic compensating structure.Described radially rotational structure is made of housing, sealing material, gland and the annulus of suit on the outer wall of inner tube, the housing right-hand member big end of reducer pipe that is tightly connected.Described seal shaft is to the elastic compensating structure, connect gland, housing, spring and constituted with the compression plate of housing right-hand member outer wall Spielpassung by the bolt polyphone.Its improvements are: described annulus constitutes the plane bearing that line contacts between the step end face in interior pipe and housing.Uniform radial direction through hole on the outer wall between described housing left end flange and the interior step, every radial direction through hole outer end is provided with plug screw.
The self-sealing rotary compensator of said structure is provided with 6～32 radial direction through hole according to the latus rectum size on the housing outer wall, to satisfy from different directions by the pressure injecting sealing material.Described sealing material is a powdery high-purity Expanded graphite.The enclosed shape annulus between the step end face, constitutes the plane bearing of line contact in interior pipe and housing, can bear bigger end thrust, and reduces rotational resistance.
The present invention compared with prior art has following good effect:
1, form the sealing material inlet by radial direction through hole uniform on the housing outer wall and plug screw, simple in structure, inject easily;
2, according to the sealing situation of whirl compensator, shed plug screw at any time, can be from the radial hole on the housing outer wall injecting sealing material, realize the maintenance of online additional sealing material, avoid that shutdown maintenance causes economic loss between non-turn(a)round;
3, the line contact plane bearing that is made of annulus, the carrying end thrust is big, flexible, the long service life of pipe rotation in making.
Description of drawings
Shown in Figure 1 is structural profile schematic representation of the present invention.
Fig. 2 is the sealing material inlet structural profile schematic representation among the present invention.
Embodiment
The present invention is further illustrated below in conjunction with embodiment and accompanying drawing.
Self-sealing rotary compensator shown in Figure 1, it comprises that radially rotational structure and seal shaft are to the elastic compensating structure.Described radially rotational structure is made of housing 3, sealing material 7, gland 2 and the annulus 9 of suit on interior pipe 1 outer wall, and the housing 3 right-hand members reducer pipe 10 that is tightly connected is held greatly.Described seal shaft is to the elastic compensating structure, connect gland 2, housing 3, spring 5 and constituted with the compression plate 8 of housing 3 right-hand member outer wall Spielpassung by bolt 4 polyphones.Enclosed shape annulus 9 among the present invention is in interior pipe 1 and housing 3 between the step end face, because annulus 9 cross sections are circular, annulus 9 constitutes the plane bearing that line contacts with the both ends of the surface that combine, and this structural bearing end thrust is big, interior pipe 1 rotation is flexible, long service life.The present invention is uniform 6～32 radial direction through hole 11 on outer wall between housing 3 left end flanges and the interior step, and every radial direction through hole outer end is provided with plug screw 6.Embodiment 1 is mounted on thermoelectricity plant's heat distribution pipeline; its latus rectum is the self-sealing rotary compensator of 250mm; uniform 10 radial direction through hole 11 and plug screw 6 on these housing 3 outer walls; go through the operation of a period of time; sealing material 6 must have mechanical abrasion; when explanation sealing material 6 storage deficiencies take place to leak sealing configuration, at this moment, under not shutdown situation, lay down plug screw 6 difference injecting sealing material 6 from radial direction through hole 11 respectively.Screw plug screw 6 in radial direction through hole 11 outer ends of injecting sealing material 6.Make sealing configuration recover sealability by online injecting sealing material 6.The present invention is not realizing online additional sealing material 6 under the outage state.Avoid that shutdown maintenance causes economic loss between non-turn(a)round.Sealing material 6 among the present invention is high-purity Expanded graphite powder of powdery.
Claims (4)
1. self-sealing rotary compensator, it comprises that radially rotational structure and seal shaft are to the elastic compensating structure; Described radially rotational structure is made of housing (3), sealing material (7), gland (2) and the annulus (9) of suit on interior pipe (1) outer wall, and housing (3) right-hand member is tightly connected, and reducer pipe (10) is big to be held; Described seal shaft connects gland (2), housing (3), spring (5) by bolt (4) polyphone and constitutes with the compression plate (8) of housing (3) right-hand member outer wall Spielpassung to the elastic compensating structure; It is characterized in that: described annulus (9) constitutes the plane bearing that line contacts between the step end face in interior pipe (1) and housing (3); Uniform radial direction through hole (11) on the outer wall between described housing (3) left end flange and the interior step, every radial direction through hole (11) outer end is provided with plug screw (6).
2. self-sealing rotary compensator according to claim 1 is characterized in that: uniform 6～32 radial direction through hole on described housing (3) outer wall.
3. self-sealing rotary compensator according to claim 1 is characterized in that: described annulus (9) is a closed loop, and its cross section is circular.
4. self-sealing rotary compensator according to claim 1 is characterized in that: described sealing material is a high-purity Expanded graphite powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710190687XA CN101169206A (en) | 2007-11-29 | 2007-11-29 | Self-sealing rotary compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710190687XA CN101169206A (en) | 2007-11-29 | 2007-11-29 | Self-sealing rotary compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101169206A true CN101169206A (en) | 2008-04-30 |
Family
ID=39389913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200710190687XA Pending CN101169206A (en) | 2007-11-29 | 2007-11-29 | Self-sealing rotary compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101169206A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454712A (en) * | 2010-10-30 | 2012-05-16 | 比亚迪股份有限公司 | Axial compensator |
| CN102705203A (en) * | 2012-06-27 | 2012-10-03 | 苏州欧康泰压缩机科技有限责任公司 | Movable flexible pipe joint |
| CN105257934A (en) * | 2015-11-04 | 2016-01-20 | 江苏贝特管件有限公司 | End face sealing structure used for rotary compensator and rotary compensator |
| CN107270000A (en) * | 2017-07-29 | 2017-10-20 | 江苏永力管道有限公司 | Double antifriction anticreep self-sealing rotary compensators |
| CN107270014A (en) * | 2017-07-29 | 2017-10-20 | 江苏永力管道有限公司 | From safeguarding without thrust whirl compensator and its manufacture method |
| CN107387926A (en) * | 2017-08-23 | 2017-11-24 | 江苏百新波纹管有限公司 | Sleeve anti-corrosion straight tube bypass pressure balance type bellows compensator |
-
2007
- 2007-11-29 CN CNA200710190687XA patent/CN101169206A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454712A (en) * | 2010-10-30 | 2012-05-16 | 比亚迪股份有限公司 | Axial compensator |
| CN102454712B (en) * | 2010-10-30 | 2013-12-04 | 比亚迪股份有限公司 | Axial compensator |
| CN102705203A (en) * | 2012-06-27 | 2012-10-03 | 苏州欧康泰压缩机科技有限责任公司 | Movable flexible pipe joint |
| CN105257934A (en) * | 2015-11-04 | 2016-01-20 | 江苏贝特管件有限公司 | End face sealing structure used for rotary compensator and rotary compensator |
| CN105257934B (en) * | 2015-11-04 | 2019-03-05 | 江苏贝特管件有限公司 | End face seal structure and whirl compensator for whirl compensator |
| CN107270000A (en) * | 2017-07-29 | 2017-10-20 | 江苏永力管道有限公司 | Double antifriction anticreep self-sealing rotary compensators |
| CN107270014A (en) * | 2017-07-29 | 2017-10-20 | 江苏永力管道有限公司 | From safeguarding without thrust whirl compensator and its manufacture method |
| CN107387926A (en) * | 2017-08-23 | 2017-11-24 | 江苏百新波纹管有限公司 | Sleeve anti-corrosion straight tube bypass pressure balance type bellows compensator |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |