CN109469781A - A kind of whirl compensator that sealing performance is excellent - Google Patents
A kind of whirl compensator that sealing performance is excellent Download PDFInfo
- Publication number
- CN109469781A CN109469781A CN201811629972.1A CN201811629972A CN109469781A CN 109469781 A CN109469781 A CN 109469781A CN 201811629972 A CN201811629972 A CN 201811629972A CN 109469781 A CN109469781 A CN 109469781A
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- Prior art keywords
- tube
- annular
- airtight
- platform
- outer tube
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- 238000007789 sealing Methods 0.000 title claims abstract description 37
- 239000000945 filler Substances 0.000 claims abstract description 27
- 230000006835 compression Effects 0.000 claims abstract description 14
- 238000007906 compression Methods 0.000 claims abstract description 14
- 238000003780 insertion Methods 0.000 claims abstract description 3
- 230000037431 insertion Effects 0.000 claims abstract description 3
- 229910000639 Spring steel Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 238000005056 compaction Methods 0.000 abstract description 3
- 230000007423 decrease Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
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
-
- 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
- F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
- F16L27/0804—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
The present invention relates to a kind of whirl compensators that sealing performance is excellent, including inner tube, outer tube, connecting tube, filler flange, outer tube is set on inner pipe, one end of inner tube passes through in outer tube insertion connecting tube, filler flange is set on inner pipe, one end protrudes into outer tube, the inner surface of outer tube is equipped with annular inner convex platform, the outer surface of inner tube is equipped with annular outer platform, airtight and watertight padding is equipped between one end that annular inner convex platform and filler flange protrude into outer tube, it is characterized in that between airtight and watertight padding and filler flange, spring compression part is equipped between airtight and watertight padding and annular inner convex platform, spring slide part is provided in the cavity formed between annular outer platform and annular inner convex platform.The present invention passes through the setting of spring compression part and spring slide part, airtight and watertight padding can be made to be in compaction state always, so that it is guaranteed that sealing effect.
Description
Technical field
The present invention relates to be used to convey the stream for having certain temperature and pressure in the industries such as a kind of electric power, chemical industry, heating power, heating
The whirl compensator of the pipeline of body medium.
Background technique
In the industries such as electric power, chemical industry, heating power, heating, largely there is the stream for having certain temperature and pressure by pipeline
The situation of body (such as steam, hot water).Since there are certain temperature and pressures, it there is expanding with heat and contract with cold for conveyance conduit and ask
Topic, the problem of expanding with heat and contract with cold of pipeline are usually to be solved by the way that compensator is arranged in pipeline enclosure
Chinese patent 200610041301.4 disclose a kind of annular inner convex platform (9) in seal receptacle (i.e. outer tube) (5) and
The mode for the edge face sealing member (6) being made of flexible material (graphite) is set between the annular outer platform (8) of core pipe (i.e. inner tube)
(referring to Fig. 1), the principle of this mode are to generate internal pressure thrust using the pressure of medium, keep core pipe (1) and seal receptacle (5) opposite
It moves to extruding is formed to edge face sealing member (6) and achievees the effect that end face seal.
Applicant has found that this mode can not reach its goal of the invention well in practical applications after study, former
Because being:
Position of the core pipe (1) relative to connecting tube (i.e. reducer pipe) (7), can be because by external force, such as shock of transport, product peace
The factors such as the percussion of dress and generate variation, in addition whirl compensator using when be to erect installation (referring to fig. 2), core pipe (1) leans on
Have above the end face of nearly sealing gland (3) elbow, steel pipe and using when medium be formed by gravity, can gradually make core pipe (1)
It is mobile to connecting tube (7) direction, widen the spacing between annular outer platform (8) and annular inner convex platform (9), up to core pipe (1) and
Connecting tube (7) offsets, and the spacing thus caused between annular outer platform (8) and annular inner convex platform (9) is uncontrollable.Although being situated between
The blind flange force that matter internal pressure is formed can generate certain thrust to core pipe (1), but since engineering safety considers the characteristics of designing, rotation
The design pressure of first compensator is often >=1.5 times of operating pressure, that is to say, that whirl compensator temperature in actual use,
Thrust caused by pressure, flow is less than design value under normal circumstances, in addition annular outer platform (8) and annular inner convex platform
The distance between (9) uncontrollable, blind flange force caused by medium internal pressure also needs to overcome core pipe (1) and edge face sealing member (6), ring
Shape inner convex platform (9), sealing element (4), sealing gland (3), the frictional resistance between ball (10), so edge face sealing member (6) is simultaneously
Its expected sealing effect cannot be generated.
According to the record of 200610041301.4 specifications, since edge face sealing member (6) is made of one by soft graphite
Sealing element, therefore only when blind flange force is greater than frictional force and overcome the elbow of upper end of inner tube, the arm of force, medium from gravity and energy
Enough make gap shrinks between annular outer platform (8) and annular inner convex platform (9), edge face sealing member (6) is carried out overstocked, makes its volume
After when being compressed to certain value, and annular outer platform (8) and annular inner convex platform (9) persistently formed be greater than seal required for pressing force
When, edge face sealing member (6) could generate sealing function.Moreover, because the thermal expansion coefficient of soft graphite and little, therefore in work
During work, annular outer platform (8) and annular inner convex platform (9) cannot reduce the pressing force of edge face sealing member (6), otherwise can lead
Cause the sealing performance decline of edge face sealing member (6).Furthermore the airtight and watertight padding in whirl compensator is under long-time service because long-term high
After the reasons such as temperature generation loss on ignition (thermal weight loss), abrasion, oxidation, loss are reduced, volume can relative decrease.Due to sealing
Filler can not be replenished by the expansion of itself fills up seal chamber because airtight and watertight padding reduces extra space, filler supported flange
The sealing pressing force of original pair of airtight and watertight padding will reduce, and decline so as to cause the sealing performance of whirl compensator, finally lead
Cause leaks.
More importantly, it is contemplated that safety coefficient, the design pressure of whirl compensator are above operation in actual use
Pressure, usually with 1.5 times of >=operating pressure for design pressure, high voltage bearing whirl compensator is then >=2 times.When product is pacified
The water pressure test, the water pressure test must be carried out according to national pressure pipeline acceptance specification and compensator manufacturing standard regulation after dress
Standard be 1.5 times of design pressures plus temperature coefficient correction values, such as design pressure 10Mpa, 520 DEG C of temperature, operating pressure
6.4Mpa, 480 DEG C of temperature of pipe-line system, the engineering pervious water pressure test that terminates to put into operation should be 26.89Mpa, therefore test
Time receiving edge face sealing member (6) has been extruded together.When pressure only has the water pressure test when due to actual motion 1/4 hereinafter, so
Annular outer platform (8) and annular inner convex platform (9) are not achieved when actual motion because overpressure is to caused by edge face sealing member (6)
Simultaneously thrust required for making edge face sealing member (6) generation sealing function is not achieved in extruding force.
Moreover the operating pressure in pipeline can also be due to the increase of the usage amount of user, reduction, the operation of heat resource equipment fluctuation
Constantly fluctuate；And due to operation fluctuation, the variation of weather, the technological means of pipe insulation and the material etc. of heat resource equipment
State can also cause temperature fluctuation；Simultaneously as fluctuation and demand volume that the equipment of user itself uses are one impermanent
Fixed value, so the flow of pipeline is also a continually changing value.And the variation of pressure, temperature and flow can mend rotation
The sealing performance for repaying device has an impact.
In conclusion temperature, flow, pressure of the edge face sealing member in 200610041301.4 patents only in pipeline
Keep constant and can only rise cannot decline in the case where could really generate sealing function.And whirl compensator actually makes
With into temperature, flow, pressure in pipeline are all a changeable values, and hydrostatic test pressure when putting into operation is much big
In operating pressure, therefore the patent is practical can not achieve its goal of the invention.
Summary of the invention
The object of the present invention is to provide a kind of whirl compensators excellent with sealing performance.
The technical scheme is that
A kind of whirl compensator, including inner tube, outer tube, connecting tube, filler flange, outer tube is set on inner pipe, interior
One end of pipe passes through in outer tube insertion connecting tube, and filler flange is set on inner pipe, and one end protrudes into outer tube, outer tube
Inner surface be equipped with annular inner convex platform, the outer surface of inner tube is equipped with annular outer platform, in annular inner convex platform and filler flange
It protrudes into and is equipped with airtight and watertight padding between one end of outer tube, between airtight and watertight padding and filler flange, airtight and watertight padding and annular convex
It is equipped with spring compression part between platform, is provided with spring slide in the cavity formed between annular outer platform and annular inner convex platform
Part.
Further, mobile to moving tube direction in use in order to limit annular outer lug boss, it prevents from expanding annular
Spacing between inner convex platform and annular outer platform, is additionally provided with limited block on the inner wall of connecting tube, the outside of annular outer platform with
The limited block is mutually low.
Preferably, above-mentioned spring slide part uses the butterfly spring made of spring steel.
The present invention is due to being equipped with spring between airtight and watertight padding and filler flange, between airtight and watertight padding and annular inner convex platform
Compressing member, even and if it is completely in compressive state in Product Assembly.When airtight and watertight padding long term high temperature generates loss on ignition, (heat is lost
Again), it or is worn caused by oxidation or inner tube and the relative rotation of outer tube or tube fluid medium washes away caused sealing for a long time
When the reasons such as the loss of filler cause sealing material to reduce, spring compression part can continue to be pressed and sealed filler by screen resilience, from
And continue to keep the sealing of entire whirl compensator.Simultaneously as spring compression part is for the direction of tube fluid positioned at close
The front of packing material, therefore can effectively resist tube fluid medium and airtight and watertight padding is washed away, prevent the loss of airtight and watertight padding.
Simultaneously as it is sliding to be additionally provided with spring in the cavity that the present invention is formed between annular outer platform and annular inner convex platform
Moving part, even and if spring slide part is in compressive state when product is in assembly.In this way, in the use of the present invention, when in pipeline
When pressure rise, inner tube is moved toward one another relative to outer tube generation, keeps the spacing of annular outer platform and annular inner convex platform further
It reduces, spring slide part can be made further to be compressed.When manifold pressure reduces, the rebound of spring slide part part, but still protect
Hold compressive state.In this way, work as whirl compensator after a period of use, the relative rotation between airtight and watertight padding inner tube and outer tube
And for a long time when washing away and generating loss of fluid media (medium), the bounce of compressed spring slide part can push outer tube to
Filler flange is mobile, plays the role of being pressed and sealed filler, so that it is guaranteed that the performance of airtight and watertight padding does not decline.Meanwhile spring is sliding
The setting of moving part also helps the relative rotation between inner tube and outer tube.
By the setting of limited block, inner tube can be effectively prevented under the tension force effect of spring slide part to connecting tube direction
It is mobile, prevent the expansion of annular outer platform and annular inner convex platform spacing, thus make spring slide part remain to outer tube to
The thrust in filler flange direction.
The present invention passes through the setting of spring compression part and spring slide part, and airtight and watertight padding can be made to be in compacting shape always
State, so that it is guaranteed that sealing effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the prior art (200610041301.4).
Fig. 2 is schematic diagram when whirl compensator is mounted on normal use after pipeline.
In Fig. 2, A is steel pipe, B is elbow, C is whirl compensator.
Fig. 3 is structural schematic diagram of the invention.
Fig. 4 is the partial structurtes enlarged drawing of Fig. 3.
Fig. 4 is the partial structurtes enlarged drawing of Fig. 3.
In Fig. 3, Fig. 4,1 is inner tube, and 2 be fastener, and 3 be filler flange, and 4 be outer tube, and 5 be airtight and watertight padding, and 6 be annular
Inner convex platform, 7 be spring slide part, and 8 be annular outer platform, and 9 be limited block, and connecting tube 10,11 is spring compression part.
Specific embodiment
Referring to Fig. 3 and Fig. 4, whirl compensator of the present invention includes inner tube 1, outer tube 4, connecting tube 10, filler flange
3, outer tube 4 is sleeved in inner tube 1, and one end of inner tube 1 passes through outer tube 4 and is inserted into 10 in connecting tube, and filler flange set 3 is mounted in interior
On pipe 1, one end is protruded into outer tube 4, and the inner surface of outer tube 4 is equipped with annular inner convex platform 6, is set on the outer surface of inner tube 1
There is annular outer platform 8, airtight and watertight padding 5 is equipped between one end that annular inner convex platform 6 and filler flange 3 protrude into outer tube 4.It is aforementioned
It is equipped with spring compression part 11 between airtight and watertight padding 5 and filler flange 3, between airtight and watertight padding and annular inner convex platform 6, outside annular
Spring slide part 7 is provided in the cavity formed between boss 8 and annular inner convex platform 6, the inner wall of connecting tube 10 is equipped with limit
Block 9, the outside of annular outer platform 8 are mutually low with the limited block 9.It is connected between filler flange 3 and outer tube 4 by fastener 2.
Outer tube 4 and connecting tube 10 can be it is separately formed after weld again, be also possible to integrally formed integral structure,
The present embodiment is using integral structure.
Spring slide part 7 and spring compression part 11 in the present embodiment are all made of the butterfly spring made of spring steel.
The collective effect of spring slide part 7 and spring compression part 11 in Product Assembly, i.e., in limited block and fastener
Under be at compressive state, spring seals 11 generate thrust, while bullet to airtight and watertight padding from the two sides of airtight and watertight padding 5 simultaneously
Spring sliding part 7 is true also to the thrust for generating orientation 3 direction of filler flange to outer tube, so that airtight and watertight padding be made to keep good
Compaction state, and the generations such as temperature, pressure, flow for no matter managing interior medium reduce or increase variation, spring seals 7 and bullet
Spring pressing part 11 remains different compressive states.In this way, when airtight and watertight padding is lost because of long-time using generation, in spring
Under the triple role of sliding part 7 and spring compression part 11, airtight and watertight padding is in compaction state always, so that it is guaranteed that airtight and watertight padding
Performance do not decline.Meanwhile the setting of spring slide part 7 also helps the relative rotation between inner tube and outer tube.Moreover, by
Spring compression part 11 is equipped in the two sides of airtight and watertight padding, therefore no matter the fluid in pipeline comes in terms of that, spring pressure
Tight part 11 all can effectively resist tube fluid medium and wash away to airtight and watertight padding, prevent the loss of airtight and watertight padding.
Claims (3)
1. a kind of whirl compensator that sealing performance is excellent, including inner tube, outer tube, connecting tube, filler flange, outer tube suit
On inner pipe, one end of inner tube passes through in outer tube insertion connecting tube, and filler flange is set on inner pipe, and one end protrudes into housing
In pipe, the inner surface of outer tube is equipped with annular inner convex platform, and the outer surface of inner tube is equipped with annular outer platform, in annular inner convex platform
Protruded into filler flange and be equipped with airtight and watertight padding between one end of outer tube, it is characterised in that airtight and watertight padding and filler flange it
Between, between airtight and watertight padding and annular inner convex platform be equipped with spring compression part, formed between annular outer platform and annular inner convex platform
Cavity in be provided with spring slide part.
2. the excellent whirl compensator of sealing performance as described in claim 1, it is characterised in that also set on the inner wall of connecting tube
There is limited block, the outside of annular outer platform is mutually low with the limited block.
3. the excellent whirl compensator of sealing performance as described in claim 1, it is characterised in that the spring compression part and bullet
Spring sliding part is using butterfly spring made of spring steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811629972.1A CN109469781A (en) | 2018-12-29 | 2018-12-29 | A kind of whirl compensator that sealing performance is excellent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811629972.1A CN109469781A (en) | 2018-12-29 | 2018-12-29 | A kind of whirl compensator that sealing performance is excellent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109469781A true CN109469781A (en) | 2019-03-15 |
Family
ID=65676951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811629972.1A Pending CN109469781A (en) | 2018-12-29 | 2018-12-29 | A kind of whirl compensator that sealing performance is excellent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109469781A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332403A (en) * | 2019-08-07 | 2019-10-15 | 石愈超 | A kind of expansion joint |
| CN116753386A (en) * | 2023-08-18 | 2023-09-15 | 江苏五星波纹管有限公司 | Maintenance-free rotary compensator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996962A (en) * | 2011-09-08 | 2013-03-27 | 江苏宝金来管道成套设备有限公司 | High-pressure-resistant rotating compensator |
| CN103527888A (en) * | 2013-10-16 | 2014-01-22 | 江苏恒鼎管道有限公司 | Ultra-high-pressure non-eccentric rotation compensator |
| CN103527889A (en) * | 2013-10-16 | 2014-01-22 | 江苏恒鼎管道有限公司 | Ultra-high pressure self-sealing rotary compensator |
| CN103994296A (en) * | 2014-06-06 | 2014-08-20 | 江苏贝特管件有限公司 | High-pressure-resistant integrated leakage-free rotating compensator |
| CN203880280U (en) * | 2014-06-06 | 2014-10-15 | 江苏贝特管件有限公司 | Wear-resisting and impact-resisting rotation compensator |
| CN203880310U (en) * | 2014-06-06 | 2014-10-15 | 江苏贝特管件有限公司 | Integrated shock-resistant sleeve compensator |
| CN203927158U (en) * | 2014-06-06 | 2014-11-05 | 江苏贝特管件有限公司 | The integrated whirl compensator of shock resistance |
| CN203927219U (en) * | 2014-06-06 | 2014-11-05 | 江苏贝特管件有限公司 | Wear-resisting integrated sleeve compensator |
| CN209414835U (en) * | 2018-12-29 | 2019-09-20 | 江苏贝特管件有限公司 | A kind of whirl compensator that sealing performance is excellent |
-
2018
- 2018-12-29 CN CN201811629972.1A patent/CN109469781A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996962A (en) * | 2011-09-08 | 2013-03-27 | 江苏宝金来管道成套设备有限公司 | High-pressure-resistant rotating compensator |
| CN103527888A (en) * | 2013-10-16 | 2014-01-22 | 江苏恒鼎管道有限公司 | Ultra-high-pressure non-eccentric rotation compensator |
| CN103527889A (en) * | 2013-10-16 | 2014-01-22 | 江苏恒鼎管道有限公司 | Ultra-high pressure self-sealing rotary compensator |
| CN103994296A (en) * | 2014-06-06 | 2014-08-20 | 江苏贝特管件有限公司 | High-pressure-resistant integrated leakage-free rotating compensator |
| CN203880280U (en) * | 2014-06-06 | 2014-10-15 | 江苏贝特管件有限公司 | Wear-resisting and impact-resisting rotation compensator |
| CN203880310U (en) * | 2014-06-06 | 2014-10-15 | 江苏贝特管件有限公司 | Integrated shock-resistant sleeve compensator |
| CN203927158U (en) * | 2014-06-06 | 2014-11-05 | 江苏贝特管件有限公司 | The integrated whirl compensator of shock resistance |
| CN203927219U (en) * | 2014-06-06 | 2014-11-05 | 江苏贝特管件有限公司 | Wear-resisting integrated sleeve compensator |
| CN209414835U (en) * | 2018-12-29 | 2019-09-20 | 江苏贝特管件有限公司 | A kind of whirl compensator that sealing performance is excellent |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332403A (en) * | 2019-08-07 | 2019-10-15 | 石愈超 | A kind of expansion joint |
| CN116753386A (en) * | 2023-08-18 | 2023-09-15 | 江苏五星波纹管有限公司 | Maintenance-free rotary compensator |
| CN116753386B (en) * | 2023-08-18 | 2023-10-24 | 江苏五星波纹管有限公司 | Maintenance-free rotary compensator |
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