CN1603672A - Stainless steel piston type pipeline temperature compensator - Google Patents
Stainless steel piston type pipeline temperature compensator Download PDFInfo
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- CN1603672A CN1603672A CN 200410040945 CN200410040945A CN1603672A CN 1603672 A CN1603672 A CN 1603672A CN 200410040945 CN200410040945 CN 200410040945 CN 200410040945 A CN200410040945 A CN 200410040945A CN 1603672 A CN1603672 A CN 1603672A
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- stainless steel
- annular groove
- temperature compensator
- seal ring
- compensator
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Abstract
The stainless steel pipeline plunger type temperature compensator, is the solution existing profile and telescope-feed and the general compression type compensator seal life short question. With the belt raised too short connecting rod, also provides 1 and in many seals stainless steel the drive pipe, outside the insertion in the drive pipe, between two pots leave a blank or opening the crack distance, causes the temperature change two drive pipes not to distort. The coat tube open end provides the port to guarantee the protective covering. Sealed the trough to guarantee the rubber seal life according to the spacing seal design. Seals the raised you connecting rod to be helpful to guarantees two drive pipes concentricity and the sealing property. Supposes the temperature to make by cutting the mark installment adjustment to be accurate, guaranteed the product does not damage, guaranteed the pipeline place to best compensates the condition. If the raised section with the engineering plastics, the seal packing collar degree of hardness is lower, may reduce the water resistance friction force, enhances the compensator sensitivity.In the drive pipe or in is effective the stainless steel to be possible to avoid the coal steel pipe endophragm the hollow spot, the trough and the crack slackens the sealing property. Also in the tube remains for the smooth surface without the contamination, the health is good. May use in the metal pipeline, specially stainless steel steel pipeline.
Description
(1) technical field: the invention belongs to the Pipe jointing part (F16L) that what has temperature correction.Every between two steel pipes of certain-length, be connected in series one in the general pipeline.The length change that the compensation pipeline expands with heat and contract with cold and takes place.Be suitable for what metallic conduit, particularly stainless steel pipeline.
(2) background technique: existing pipe temperature compensator has following several:
1. bellow expansion joint 9: as Fig. 5, establish waveform joint 9.3, one ends 9.1 and be connected by welding or flange with externally connected pipe, the other end also links to each other with externally connected pipe by flange 9.4, the inner sleeve 9.2 that waveform joint endoporus dress supports.When steel pipe expands with heat and contract with cold, compensate by the waveform joint is flexible.To require the necessary book of bellows pipe thickness in order satisfying to shrink, to influence the raising that pipeline bears hydraulic pressure for this reason.The metal waveform saves long-term flexible easily generation fatigue and damages in addition, can not keep and the same life-span of other pipeline, is needed to change in using process by what, causes pipe-line maintenance cost height.
2. traditional irony slip-type expansion joint 10: see Fig. 6, establish inner sleeve 10.1 and insert in the outer sleeves 10.2 that the sleeve port welded flange 10.3 outside, and be connected with another flange 10.6 with nut 10.4 and tighten up, adorn rubber flap between two flanges and seal 10.5.By the what inner sleeve weight and the hard to get along with what concentric of outer sleeve are arranged, form eccentric compression, the rubber flap sealing is impaired easily; Because of only establishing one sealing, sealing life is short again.This external cause inner sleeve adopts ferrous material, and inwall often has depression points, groove and the crackle of corrosion to cause the sealing failure.This irony sleeve expansion joint, owing to the weight reason, outer sleeve is fixed on the support 10.7, and the caulking gum scraper plate also is motionless, and unique moving member only has inner sleeve 10.1.
3. Chinese patent ' pipe fitting joint compensator ' (93203099.8) it insert outer tube with interior pipe, circle fluting dress sealing in outer tube, because of coming compressing rubber by the adjusting lock nut, shortcoming is that randomness is very big, easily pulls.Because of sealing with common compression type, the inner and outer pipes concentricity is difficult to guarantee again: if it is big then to rub between inner and outer pipes with drive fit, the easy card that takes place is managed, if using loose fit, interior pipe is that off-centre takes place fulcrum with the O-ring seals, easily wipe on outer tube interior pipe one termination, damage inwall, thereby destroyed sealing.And external nut connects only suitable what small-bore pipe.
(3) summary of the invention:
The stainless steel piston type pipe temperature compensator that the present invention proposes solves the poor sealing performance that above-mentioned pipeline compensator exists exactly, the problem that the life-span is short.Its technological scheme is as follows:
Stainless steel piston type pipe temperature compensator is characterized in that:
I. establish inner sleeve 1 and insert in the outer sleeve 4, both external end heads are established interface 5 respectively and are linked to each other with 8 by the outside two tubes 6 that connects with two ends with 7; Inner sleeve 1 inner termination has one section heavy wall boss section 1.2 that axial L1 is long, and 1 and above spill annular groove 1.1 (seal groove just) are opened in its outer garden, and the seal ring 2 of packing in the groove and matching forms the piston cylinder operator of being with boss thus.
Ii. the ginseng placate of spill annular groove 1.1 and seal ring 2 cooperations is selected as follows: each annular groove cross-section area S1 is that S1/S2 is 0.6-1.5 with the ratio of seal ring cross-section area S2, and each seal ring height H 2 is H2/H1 〉=1.1 with the ratio of the dark H1 of annular groove; Form spacing compression seal thus.
Iii. contain the convex section 1.2 of spill annular groove 1.1, all there are void pitch L and L2 in axial forward end and rear end, when guaranteeing that pipeline expands with heat and contract with cold, and inside and outside sleeve pipe flexible.
Iv. outer sleeve port dress fixedly what it, and can overlap 3 at the port protection of inner sleeve periphery slide relative.
Above-mentioned S1/S2 and H2/H1 can adopt more, and optimization range is: each annular groove cross-section area S1 and the ratio S1/S2 of seal ring cross-section area S2 are 1.05-1.25, and each seal ring height H 2 is 1.2-1.3 with the ratio H2/H1 of the dark H1 of annular groove.
Above-mentioned seal ring 2 materials can adopt bright rubber of ternary second or chlorinated scoline, and its shore hardness is in the 55-75 degree.Above-mentioned inner sleeve 1 can wholely adopt the stainless steel material making, and perhaps its interior interior pipe 1.4 adopts stainless steel materials to make, and external belt boss section 1.2 usefulness engineering plastics (as fluorine rubber) are managed outside 1.4 in being sleeved on, and both tighten up with the screw connection.Can adopt drive fit between above-mentioned trough of belt boss section 1.2 and outer sleeve endoporus, generally both radial clearances are in 15.Boss section inner concave shape annular groove is generally offered 1-3 vertically.What above-mentioned inner sleeve 1 surface was provided with collapsing length placate certificate scribes mark 1.3.Port protection cover 3 usefulness screws 2.1 are what outer sleeve 4 end faces fixedly, and the interior cover 3.1 of fluorine rubber or other friction lower resistance material can be adorned in interior garden.Above-mentioned interface 5 and 7 applicable welding type or clamp-press types, or flange-type, or nut wire ring loose joint formula, or internal threaded nut formula.
Beneficial effect of the present invention:
(1) this patent has adopted spacing seal groove design, be to cooperate the ginseng placate to choose within the scope of the invention between spill annular groove and the seal ring, have the relation of spacing compression between the two, thereby guaranteed the sealing life of rubber, accomplish the rigid body fore and aft motion thus, the water resistance sealing of flexible body.
(2) this patent has adopted the piston type temperature compensator of band boss, and because of boss section 1.2 has certain-length, in making, what same axis in outer sleeve place guarantees that both concentricitys reach correspondingly sealability.Closely cooperate if make between it and outer sleeve, then both concentricitys and sealability will be better.Can adopt a plurality ofly again by the what seal ring, increase on the one hand the effect of water resistance sealing, because of axial a plurality of steps of formation on many sealings and the corresponding boss, also further limit radially throw of inner sleeve again, promptly guarantee concentricity.
(3) adopt high strength, the bright rubber of ternary second of high wear resistance or wear-resisting flexible sealing rubber chlorinated scoline to make seal ring, can make life of product height, water pressure resistance height.
(4) by the inside and outside drive pipes concentricity height of what, boss section 1.2 adopts engineering plastics (as fluorine rubber) again, and the bright rubber of ternary second that sealing ring material adopts and the Tai Shi hardness lower (55-65) of chlorinated scoline, therefore the frictional force between boss section and outer sleeve is little, the realization miniature power starts, and compensator is highly sensitive thus.
(5) can do longlyer because of inside and outside sleeve pipe, so movably stroke is long in it, so compensation range is big.
(6) inner sleeve 1 or interior pipe 1.4 adopt stainless steel material, can avoid carbon steel material depression points, groove and crackle to occur at the inner sleeve inwall, influence sealability.And avoid dirt residual for the smooth mirror surface state in the pipe, wholesomeness is good.
(7) this kind piston type compensator structure, by the flexible Stroke Control of what design in 36-136mm, so even outer sleeve thickness book also can effectively guarantee radially garden degree very, thereby the assurance sealing.
(8) mark 1.3 is scribed in setting, installs and adjusts accurately, guarantees that product does not damage.Adjust to ambient temperature when only needing to install, just can make place, pipeline running back what The optimal compensation state.
(9) these compensator two end interfaces have multiple pattern to meet consumers' demand.
(10) effect of port protection cover 3 is set: when making internal and external casing flexible with overcoat maintenance concentricity.Establish the interior cover 3.1 of fluorine rubber and lower resistance material by what, can when flexible, protect the inner sleeve surface injury-free.Also be the cut off point that inner sleeve boss section moves simultaneously.
(11) seeing that this pipeline compensator is total is that volume is little, and in light weight, the life-span is long, and is non-maintaining.
(4) description of drawings:
Fig. 1. structure of the present invention is always schemed
Fig. 2. one of port 5,7 structural types: flange connects.
Fig. 3. two of port 5,7 structural types: internal threaded nut.
Fig. 4. three of port 5,7 structural types: nut wire ring loose joint.
Fig. 5. one of background technique: bellow expansion joint structural drawing.
Two of Fig. 6 background technique: slip-type expansion joint structural drawing.
(5) embodiment:
Embodiment 1: see Fig. 1, the inner sleeve 1 that stainless steel material is made inserts in the outer sleeve 4, and both external end heads are established interface 5 and 7 respectively, and present embodiment 1 is taken as the welding type interface, with welding manner respectively with stainless steel pipeline in two pipes 6 and 8 be connected and fixed.Inner sleeve 1 termination boss section 1.2 (length is L1), outer surface is opened three spill annular grooves 1.1, the O-ring seals 2 of packing in each groove.
Both ginseng placates that cooperates of seal ring 2 and annular groove 1.1 are selected as follows: each annular groove cross-section area S1 and the ratio S1/S2 of seal ring cross-section area S2 are 1.05, and each seal diameter H2 and the ratio H2/H1 of the dark H1 of annular groove are 1.25.
The void pitch L of boss section 1.2 axial forward end and rear end and L2 can the relative displacement covers when guaranteeing that inside and outside sleeve pipe expands with heat and contract with cold.Port protection cover 3 can be an open circles ring cowling cover, uses fixedly what outer sleeve 4 end faces of screw 3.2, and cover 3.1 in the fluorine rubber is equipped with in garden in it.When the port protection cover 3 of dismantling, then 1 of inner sleeve can be pulled out in outer sleeve 4.The O-ring seals material adopts the bright rubber of ternary second, and its shore hardness is taken as 60, and boss section 1.2 is a drive fit with outer sleeve 2 interior gardens.What the garden was axially arranged with collapsing length placate certificate outside inner sleeve 1 scribes mark 1.3.
Embodiment 2: see Fig. 1
Inner sleeve 1 inner termination boss section 1.2 outer surfaces are opened three spill annular grooves 1.1, the O-ring seals 2 of packing in each groove, both cooperation ginseng placates are as follows: each annular groove cross-section area S1 and the ratio S1/S2 of seal ring cross-section area S2 are 1.1, and each seal diameter H2 and the ratio H2/H1 of the dark H1 of annular groove are 1.3.All the other structures are identical with embodiment 1.
Embodiment 3: see Fig. 1
Inner sleeve 1 inner termination boss section 1.2 outer surfaces are opened three spill annular grooves 1.1, the O-ring seals 2 of packing in each groove, and inner sleeve 1 is by stainless steel interior pipe of doing 1.4 and the boss section 1.2 with fluorine rubber making band groove that is sleeved on the interior pipe 1.4, the material shore hardness of seal ring 2 is 55 chlorinated scoline, 4 of boss section 1.2 and outer sleeves are the drive fit in 15, form the high piston type pipeline compensator of compensate for sensitivity thus.All the other structures are identical with embodiment 1.
Implement 4 and see Fig. 2, port 5 adopts flange to be connected 5.1 and 7.1 with 7 structures.All the other structures are identical with embodiment 1.
Embodiment 5: see Fig. 3, port 5 and 7 structures adopt internal threaded nut 5.2 and 7.2.All the other structures with
Embodiment 1 is identical.
Embodiment 6: see Fig. 4. and port 5 and 7 structures adopt nut wire ring loose joint 5.3 and 7.3.All the other structures are identical with embodiment 1.
Claims (8)
1. stainless steel piston type pipe temperature compensator is characterized in that:
I. establish inner sleeve (1) and insert in the outer sleeve (4), both external end heads are established interface (5) respectively and are linked to each other with (8) by the outside two tubes (6) that connects with two ends with (7); Inner sleeve (1) inner termination has one section heavy wall boss section (1.2) that axial L1 is long, and 1 and above spill annular groove (1.1), the seal ring (2) of packing in the groove and matching are opened in its outer garden;
Ii. the ginseng placate that cooperates between spill annular groove (1.1) and seal ring (2) is selected as follows: each annular groove cross-section area S1 and the ratio S1/S2 of seal ring cross-section area S2 are 0.6-1.5, and each seal ring height H 2 is H2/H1 〉=1.1 with the ratio of the dark H1 of annular groove;
Iii. contain the boss section (1.2) of spill annular groove, all there are void pitch L and L2 in axial forward end and rear end;
Iv. outer sleeve port dress fixedly what it, and at the port protection cover (3) of inner sleeve periphery slip.
2. by the described temperature compensator of claim 1, it is characterized in that each annular groove cross-section area S1 and the ratio of seal ring cross-section area S2 are 1.05-1.25, each seal ring height H 2 is 1.2-1.3 with the ratio of the dark H1 of annular groove.
3. by the described temperature compensator of claim 1, it is characterized in that sealing ring material adopts bright rubber of ternary second or chlorinated scoline, its shore hardness is in 55-75; Spill annular groove (1.1) is offered 1-3 vertically.
4. by the described temperature compensator of claim 1, it is characterized in that the making of the whole employing of inner sleeve stainless steel material; Or its in interior pipe (1.4) use stainless steel material, the outside trough of belt boss section (1.2) use engineering plastics, both connect as one with screw.
5. by claim 1 or 4 described temperature compensators, it is characterized in that boss section (1.2) and outer sleeve endoporus are drive fit.
6. by the described temperature compensator of claim 1, it is characterized in that inner sleeve 1 surface is provided with to scribe mark (1.3) by temperature variation collapsing length placate certificate.
7. by the described temperature compensator of claim 1, it is characterized in that cover (3.1) in the dress fluorine rubber of the interior garden of port protection cover (3).
8. by the described temperature compensator of claim 1, it is characterized in that interface (5) and (7) can adopt welding type or clamp-press type, or flange-type, or nut wire ring loose joint formula, or the internal threaded nut formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100409452A CN1306204C (en) | 2004-11-02 | 2004-11-02 | Stainless steel piston type pipeline temperature compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100409452A CN1306204C (en) | 2004-11-02 | 2004-11-02 | Stainless steel piston type pipeline temperature compensator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1603672A true CN1603672A (en) | 2005-04-06 |
| CN1306204C CN1306204C (en) | 2007-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100409452A Expired - Fee Related CN1306204C (en) | 2004-11-02 | 2004-11-02 | Stainless steel piston type pipeline temperature compensator |
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| CN (1) | CN1306204C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058639A (en) * | 2018-10-17 | 2018-12-21 | 西南交通大学 | A kind of flexible compensation interface of vacuum traffic pipeline |
| CN110056734A (en) * | 2019-03-14 | 2019-07-26 | 佛山市科蓝环保科技股份有限公司 | A kind of Novel pipeline compensator |
| CN110214216A (en) * | 2017-01-24 | 2019-09-06 | 纳博特斯克有限公司 | The installation method for having the automatic door device of guide rail and stop part, the stop part for being installed on guide rail and direction guiding rail installation stop part |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5160174A (en) * | 1989-11-29 | 1992-11-03 | William Thompson | Telescoping pipes and application for such telescoping pipes in fire sprinkler systems |
| CN2114079U (en) * | 1992-02-12 | 1992-08-26 | 沈阳市浆体管道设备制造厂 | Expansion joint |
| JP2002303388A (en) * | 2001-04-05 | 2002-10-18 | Inax Corp | Pipe joint |
| CN2519090Y (en) * | 2001-12-30 | 2002-10-30 | 薛洪耘 | Length-adjustable pipe fitting connecting piece |
-
2004
- 2004-11-02 CN CNB2004100409452A patent/CN1306204C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110214216A (en) * | 2017-01-24 | 2019-09-06 | 纳博特斯克有限公司 | The installation method for having the automatic door device of guide rail and stop part, the stop part for being installed on guide rail and direction guiding rail installation stop part |
| CN110214216B (en) * | 2017-01-24 | 2021-12-24 | 纳博特斯克有限公司 | Automatic door device having guide rail and stopper, stopper attached to guide rail, and method for attaching stopper to guide rail |
| CN109058639A (en) * | 2018-10-17 | 2018-12-21 | 西南交通大学 | A kind of flexible compensation interface of vacuum traffic pipeline |
| CN109058639B (en) * | 2018-10-17 | 2024-01-26 | 西南交通大学 | Telescopic compensation interface of vacuum traffic pipeline |
| CN110056734A (en) * | 2019-03-14 | 2019-07-26 | 佛山市科蓝环保科技股份有限公司 | A kind of Novel pipeline compensator |
| CN110056734B (en) * | 2019-03-14 | 2024-04-30 | 佛山市科蓝环保科技股份有限公司 | Novel pipeline compensator |
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| Publication number | Publication date |
|---|---|
| CN1306204C (en) | 2007-03-21 |
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