CN103486388A - High-pressure rotation compensator - Google Patents
High-pressure rotation compensator Download PDFInfo
- Publication number
- CN103486388A CN103486388A CN201310447732.0A CN201310447732A CN103486388A CN 103486388 A CN103486388 A CN 103486388A CN 201310447732 A CN201310447732 A CN 201310447732A CN 103486388 A CN103486388 A CN 103486388A
- Authority
- CN
- China
- Prior art keywords
- inner tube
- steel ball
- ring
- gland
- pressure
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 210000004907 gland Anatomy 0.000 claims abstract description 12
- 239000000945 filler Substances 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 12
- 238000005096 rolling process Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 11
- 238000005242 forging Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000007667 floating Methods 0.000 abstract description 2
- 238000009826 distribution Methods 0.000 description 10
- 230000033001 locomotion Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910000851 Alloy steel Inorganic materials 0.000 description 3
- 230000005619 thermoelectricity Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005088 metallography Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
-
- 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
- F16L27/00—Adjustable joints; Joints allowing movement
- F16L27/12—Adjustable joints; Joints allowing movement allowing substantial longitudinal adjustment or movement
- F16L27/125—Adjustable joints; Joints allowing movement allowing substantial longitudinal adjustment or movement having longitudinal and rotary movement
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention discloses a high-pressure rotation compensator which comprises a shell, an inner tube, a steel ball, a left ring, a pad, a right ring, filler, a flange, a gland and a bolt component. The shell and the inner tube are nested coaxially. The right end face of a convex annular ledge of the inner tube is provided with an arc groove matched with the steel ball. The inner tube, the steel ball and the left ring jointly form a rotating kinematic pair. The pad, the right ring and the filler sequentially mounted at the gap between the right-end inner hole of the shell and the outer wall of the inner tube from left to right are in limit connection through the gland, the flange and the bolt component to form an axial floating seal structure, which moves along with pressure of built-in media, of the inner tube. The inner hole of the gland is provided with an annular groove, and the steel ball is placed in the groove to form a kinematic pair bearing the outlet end of the inner tube in a rolled manner. The high-pressure rotation compensator has the advantages that the shell and the inner tube convex annular ledge are small in radial size and easy in forging forming, no welding seams exist in the structure, strength loss is avoided, and the high-pressure rotation compensator is especially suitable for being operated under high temperature and high pressure.
Description
Technical field
The present invention relates to a kind of pipe line compensating device, specifically, the present invention relates to a kind of for absorbing the whirl compensator of heat distribution pipeline end thrust and compensate for displacement.
Background technique
Generally, the heat distribution pipeline transmission distance of large-scale thermoelectricity plant and petrochemical industry is long, and built-in vapor (steam) temperature is high, pressure is large, and the heat distortion amount of generation is relatively large, and end thrust wherein has very holocaust power to heat distribution pipeline.During engineering design in order to ensure the heat distribution pipeline safe operation, must be on the heat distribution pipeline interdependent node configuring pipes compensation device.Under the prior art condition, first-selected pipe safety device is whirl compensator.The structure characteristic of whirl compensator is that import and export are the equal coupling pipe, and thickness of pipe wall can be set by voltage withstand class, adds the rotational structure motion flexibly, and can be connected into according to the trend of heat distribution pipeline joint connection structure.In view of above structural advantages, whirl compensator is widely used in heat distribution pipeline.Although the commodity whirl compensator specification difference of supplying on market, its agent structure is basic identical, and critical piece is all realized being shaped by welding procedure.Adopt for these special-shaped parts that welding procedures easily are shaped, fabricating cost is low, can meet the supporting requirement of conventional heat distribution pipeline fully.But, the heat distribution pipeline transmission vapor (steam) temperature of some thermoelectricity plants and petrochemical industry is higher than 420 ℃, and pressure is greater than 10MPa, and the whirl compensator of prior art moves and mainly has two large problems under this type of operating mode, the one, poorly sealed problem, the 2nd, the problem that the weld strength in structure is poor.The whirl compensator sealing configuration of prior art is artificial regulation structure, under high temperature and high pressure condition, operation a period of time sealing pair just easily lost efficacy, the leakage rate produced is pressed into proportional relation with carrying, and need to make the manual maintenance guarantee according to actual leakage situation and normally move.The industry, for accomplishing whirl compensator safe operation under high temperature and high pressure condition, adopts high strength alloy steel making inner tube and housing usually.The inner tube and the housing outside dimension that because of flange, connect are larger, obviously are not suitable for being shaped with bar turning, although welding procedure can realize high efficiency manufacture, have weld seam in structure.Known from " welding technology " and " Metallography ", the weldability of high strength alloy steel is poor, and the welding conditions requirement is very high, and particularly before the large-size components weldering, heating is difficult, and it is more difficult under constant temperature, to weld, and postwelding also will be done bulk heat treatment to eliminate welding stress.So, under general welding condition, common welder can not guarantee welding quality, even also needing to do necessary check, high-grade welder operation could assert quality.Briefly, the whirl compensator moved under high temperature and high pressure condition is as long as adopt welding line structure just to have potential safety hazard, and the user is supporting very careful.
Summary of the invention
The present invention exists weld seam problem and poorly sealed problem mainly for prior art products, propose a kind of simple in structure, sealing is reliable, steady quality and the good high-pressure rotary compensator of Security.Because adopting floating sealing structure, its sealability increases and improves along with pressure, adds inner tube and housing and adopts excellent suitability for press forming, and no-welding-seam in structure, guarantee safe operation.
The present invention is achieved through the following technical solutions technical goal.
The high-pressure rotary compensator, it comprises housing, inner tube, steel ball, left ring, pad, right ring, filler, flange, gland and bolt assembly.The integrated more piece pipe of described housing, hold greatly coaxial fit inner tube in endoporus to form the equal straight-through tube in aperture.Its improvements are: described inner tube left end outer wall is provided with the evagination annular shoulder and coordinates with housing intermediate section pipe hold gap, and the right side of evagination annular shoulder is provided with the arc groove coordinated with steel ball, the common kinematic pair that forms a rotation of inner tube, steel ball and left ring.Gap between described housing right-hand member endoporus and outer wall of inner tube, pad, right ring and the filler installed successively from left to right, jointly by the spacing connection of gland, flange and bolt assembly, the formation inner tube is moving axial float sealing configuration with built-in pressure medium.Described gland endoporus is provided with ring groove, and in ring groove, uniform steel ball forms the kinematic pair to inner tube outlet end rolling bearing.
The present invention compared with prior art, has following good effect:
1, housing and inner tube all are provided with the external ring-shaped shoulder, because shoulder is less than flange edge radial dimension, are easy to formed by forging, and forging, except saving machining man-hour, has also been saved raw material, the most important thing is the main component integrated welding seam-free, and intensity is secure;
2, the axial float sealing configuration is simple, and inner tube is moved with the pressure of built-in medium, and pressure is larger, and sealing effect is better;
3, because the axial float sealing configuration is the non-specified pressure-bearing that continues, stuffing box packing is difficult for occurring fatigue loss, and sealability continues to keep.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, the invention will be further described.
The present embodiment is supporting in the heat distribution pipeline of thermoelectricity plant, 450 ℃ of its built-in steam, and pressure is 10MPa.Because of operating mode more severe, housing 1 and inner tube 2 are all used the 15CrMo steel making, because of the weldability of this material bad, housing 1, inner tube 2 all adopt formed by forging, concrete structure high-pressure rotary compensator as shown in Figure 1, it comprises housing 1, inner tube 2, steel ball 3, left ring 4, pad 5, right ring 6, filler 7, flange 8, gland 9 and bolt assembly 10.The integrated more piece pipe of described housing 1, hold greatly coaxial fit inner tube 2 in endoporus to form the equal straight-through tube in aperture.Described inner tube 2 left end outer walls are provided with the evagination annular shoulder and coordinate with housing 1 intermediate section pipe hold gap, and the right side of evagination annular shoulder is provided with the arc groove coordinated with steel ball 3, inner tube 2, steel ball 3 and the common kinematic pair that forms a rotation of left ring 4.Gap between described housing 1 right-hand member endoporus and inner tube 2 outer walls, pad 5, right ring 6 and the filler 7 installed successively from left to right, by gland 9, flange 8 and the spacing connection of bolt assembly 10, formation inner tube 2 is moving axial float sealing configuration with built-in pressure medium jointly.This structure keeps sealing state under normal condition, and when built-in pressure medium raises, the inner tube 2 moved to right drives steel ball 3, left rings 4, pad 5 and right ring 6 filler 7 of jointly exerting pressure, and makes sealability further improve, and avoids occurring unnecessary leakage.Once built-in pressure medium descends, above each part is done reverse movement, until keep original sealing state.Inner tube 2 in structure except being passage, must bear rotation or the axial displacement of relative housing 1, in order to improve the kinematic dexterity of inner tube 2, be provided with ring groove at gland 9 endoporus, the kinematic pair that in ring groove, uniform steel ball 3 forms inner tube 2 outlet end rolling bearings.Inner tube 2 is under rotary motion pair and the secondary common supporting of rolling motion, and rotation is flexible, nose balance is timely, the Security that greatly improves the matched with hot hydraulic piping.Housing 1 in the present invention and inner tube 2 external ring-shaped shoulder radial dimensions are little, adopt formed by forging.High strength alloy steel can improve metal structure through formed by forging, improves strength character, saves again machining man-hour simultaneously, and saves a large amount of raw material, and manufacture cost is relatively low.Housing 1 and inner tube 2 adopt formed by forging, and maximum benefit is no-welding-seam in structure, and the intensity of product is secure, does not have problems of welded quality.
Claims (1)
1. a high-pressure rotary compensator, it comprises housing (1), inner tube (2), steel ball (3), left ring (4), pad (5), right ring (6), filler (7), flange (8), gland (9) and bolt assembly (10); The integrated more piece pipe of described housing (1), hold greatly coaxial fit inner tube (2) in endoporus to form the equal straight-through tube in aperture; It is characterized in that: described inner tube (2) left end outer wall is provided with the evagination annular shoulder and coordinates with housing (1) intermediate section pipe hold gap, the right side of evagination annular shoulder is provided with the arc groove coordinated with steel ball (3), and inner tube (2), steel ball (3) and left ring (4) form the kinematic pair of a rotation jointly; Gap between described housing (1) right-hand member endoporus and inner tube (2) outer wall, pad (5), right ring (6) and the filler (7) installed successively from left to right, by gland (9), flange (8) and the spacing connection of bolt assembly (10), formation inner tube (2) is moving axial float sealing configuration with built-in pressure medium jointly; Described gland (9) endoporus is provided with ring groove, and in ring groove, uniform steel ball (3) forms the kinematic pair to inner tube (2) outlet end rolling bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310447732.0A CN103486388A (en) | 2013-09-27 | 2013-09-27 | High-pressure rotation compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310447732.0A CN103486388A (en) | 2013-09-27 | 2013-09-27 | High-pressure rotation compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103486388A true CN103486388A (en) | 2014-01-01 |
Family
ID=49826857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310447732.0A Pending CN103486388A (en) | 2013-09-27 | 2013-09-27 | High-pressure rotation compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103486388A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006256A (en) * | 2014-02-27 | 2014-08-27 | 陈墅庚 | Novel high-pressure pipeline rotating compensator |
| CN107218465A (en) * | 2017-08-04 | 2017-09-29 | 高玉琴 | Floating sealed whirl compensator |
| CN110617375A (en) * | 2019-11-07 | 2019-12-27 | 中冶北方（大连）工程技术有限公司 | Three-way pipe connecting structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2924241Y (en) * | 2006-07-13 | 2007-07-18 | 张学云 | Two-way flow rotary compensator with safety device |
| DE102007062850A1 (en) * | 2007-12-21 | 2009-06-25 | Westfalia Metallschlauchtechnik Gmbh & Co. Kg | Flexible and rigid pipeline elements connection element for e.g. exhaust gas line in passenger car, has layer between outer and inner pipes, and three balls limiting intermediate space and provided in layer |
| CN201359156Y (en) * | 2009-03-10 | 2009-12-09 | 陈墅庚 | High-voltage resistant precise rotary compensator |
| CN201436435U (en) * | 2009-06-03 | 2010-04-07 | 上海高低压阀门有限公司 | Rotary compensator |
| CN201517679U (en) * | 2009-03-06 | 2010-06-30 | 姜堰市先科机电设备有限公司 | rotary pipeline compensator |
| CN203585684U (en) * | 2013-09-27 | 2014-05-07 | 江苏昊峰管道设备有限公司 | High-pressure rotating compensator |
-
2013
- 2013-09-27 CN CN201310447732.0A patent/CN103486388A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2924241Y (en) * | 2006-07-13 | 2007-07-18 | 张学云 | Two-way flow rotary compensator with safety device |
| DE102007062850A1 (en) * | 2007-12-21 | 2009-06-25 | Westfalia Metallschlauchtechnik Gmbh & Co. Kg | Flexible and rigid pipeline elements connection element for e.g. exhaust gas line in passenger car, has layer between outer and inner pipes, and three balls limiting intermediate space and provided in layer |
| CN201517679U (en) * | 2009-03-06 | 2010-06-30 | 姜堰市先科机电设备有限公司 | rotary pipeline compensator |
| CN201359156Y (en) * | 2009-03-10 | 2009-12-09 | 陈墅庚 | High-voltage resistant precise rotary compensator |
| CN201436435U (en) * | 2009-06-03 | 2010-04-07 | 上海高低压阀门有限公司 | Rotary compensator |
| CN203585684U (en) * | 2013-09-27 | 2014-05-07 | 江苏昊峰管道设备有限公司 | High-pressure rotating compensator |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006256A (en) * | 2014-02-27 | 2014-08-27 | 陈墅庚 | Novel high-pressure pipeline rotating compensator |
| CN104006256B (en) * | 2014-02-27 | 2016-05-25 | 陈墅庚 | Novel high-pressure pipeline rotating compensator |
| CN107218465A (en) * | 2017-08-04 | 2017-09-29 | 高玉琴 | Floating sealed whirl compensator |
| CN110617375A (en) * | 2019-11-07 | 2019-12-27 | 中冶北方（大连）工程技术有限公司 | Three-way pipe connecting structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
Application publication date: 20140101 |