CN209414854U - A kind of whirl compensator - Google Patents
A kind of whirl compensator Download PDFInfo
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- CN209414854U CN209414854U CN201822247350.4U CN201822247350U CN209414854U CN 209414854 U CN209414854 U CN 209414854U CN 201822247350 U CN201822247350 U CN 201822247350U CN 209414854 U CN209414854 U CN 209414854U
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Abstract
The utility model relates to a kind of whirl compensators, 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, it is equipped with airtight and watertight padding between one end that annular inner convex platform and filler flange protrude into outer tube, is provided with spring slide part in the cavity formed between annular outer platform and annular inner convex platform.The utility model is due to being provided with spring slide part between annular outer platform and annular inner convex platform, when airtight and watertight padding is worn because of long-time using generation, the bounce of spring slide part can push outer tube mobile to filler flange, play 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 the setting of spring slide part also helps the relative rotation between inner tube and outer tube.
Description
Technical field
The utility model relates to have certain temperature and pressure for conveying in the industries such as a kind of electric power, chemical industry, heating power, heating
Fluid media (medium) pipeline whirl compensator.
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 compensator is often >=1.5 times of operating pressure, that is to say, that temperature, the pressure of whirl compensator in actual use
Thrust caused by power, flow is less than design value under normal circumstances, in addition annular outer platform (8) and annular inner convex platform (9)
The distance between it is uncontrollable, blind flange force caused by medium internal pressure also needs to overcome core pipe (1) and edge face sealing member (6), annular
Inner convex platform (9), sealing element (4), sealing gland (3), the frictional resistance between ball (10), so edge face sealing member (6) is not
Its expected sealing effect can 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, steel pipe, 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 put into operation row when hydrostatic test pressure be far longer than
Operating pressure, therefore the patent is practical can not achieve its goal of the invention.
Summary of the invention
The purpose of the utility model is to provide a kind of whirl compensators with more preferable sealing effect.
The technical solution of the utility model is:
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, be provided in the cavity formed between annular outer platform and annular inner convex platform
Spring slide 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 utility model is in Product Assembly, even if spring slide part is in compressed state, so that spring slide part
Certain thrust to 3 direction of filler flange is generated to the annular inner convex platform of outer tube.In use, when manifold pressure increases
When, inner tube is moved toward one another relative to outer tube generation, is further reduced annular outer platform and the spacing of annular inner convex platform, can be made
Spring slide part is further compressed and increases the thrust of the annular inner convex platform generation to outer tube.When manifold pressure reduces
When, though spring slide part may partially be sprung back, but still compressive state can be kept, to keep to the annular inner convex platform of outer tube
Thrust.When airtight and watertight padding is worn because of long-time using generation, the bounce (thrust) of spring slide part can push outer tube
It is mobile to filler flange, play 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
The setting of sliding part also helps the relative rotation between inner tube and outer tube.
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 the structural schematic diagram of the utility model.
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, connecting tube 10
Specific embodiment
Referring to Fig. 3 and Fig. 4, whirl compensator described in the utility model includes inner tube 1, outer tube 4, connecting tube 10, filler
Flange 3, outer tube 4 are 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, 3 dress of filler flange set
In inner tube 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, the outer surface of inner tube 1
It is equipped with 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 provided with spring slide part 7 in the cavity formed between annular outer platform 8 and annular inner convex platform 6, is set on the inner wall of connecting tube 10
There is limited block 9, the outside of annular outer platform 8 is mutually low with the limited block 9.Pass through fastener 2 between filler flange 3 and outer tube 4
Connection.
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 in the present embodiment uses the butterfly spring made of spring steel.
Spring slide part 7 is in compressed state in Product Assembly, and produces to the annular inner convex platform 6 of outer tube 4
Raw certain thrust to 3 direction of filler flange, makes airtight and watertight padding keep good compaction state, and no matter manage the temperature of interior medium
The generations such as degree, pressure, flow reduce or increase variation, and spring slide part 7 remains different compressive states.In this way, when close
When packing material is worn because of long-time using generation, the bounce of spring slide 7 can push outer tube mobile to filler flange, rise
To the effect for being pressed and sealed filler, so that it is guaranteed that the performance of airtight and watertight padding does not decline.Meanwhile the setting of spring slide part 7 is also
Conducive to the relative rotation between inner tube and outer tube.
Claims (3)
1. a kind of whirl compensator, including inner tube, outer tube, connecting tube, filler flange, outer tube is set on inner pipe, inner tube
One end pass through outer tube insertion connecting tube in, filler flange be set on inner pipe, one end protrudes into outer tube, outer tube
Inner surface is equipped with annular inner convex platform, and the outer surface of inner tube is equipped with annular outer platform, stretches in annular inner convex platform with filler flange
Enter and be equipped with airtight and watertight padding between one end of outer tube, it is characterised in that the cavity formed between annular outer platform and annular inner convex platform
Inside it is provided with spring slide part.
2. whirl compensator as described in claim 1, it is characterised in that be additionally provided with limited block on the inner wall of connecting tube, annular is outer
The outside of boss is mutually low with the limited block.
3. whirl compensator as described in claim 1, it is characterised in that above-mentioned spring slide part is using made of spring steel
Butterfly spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822247350.4U CN209414854U (en) | 2018-12-29 | 2018-12-29 | A kind of whirl compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822247350.4U CN209414854U (en) | 2018-12-29 | 2018-12-29 | A kind of whirl compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209414854U true CN209414854U (en) | 2019-09-20 |
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ID=67941621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822247350.4U Active CN209414854U (en) | 2018-12-29 | 2018-12-29 | A kind of whirl compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209414854U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594677A (en) * | 2020-06-16 | 2020-08-28 | 江苏贝特管件有限公司 | End face sealing structure for rotary compensator and rotary compensator |
-
2018
- 2018-12-29 CN CN201822247350.4U patent/CN209414854U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594677A (en) * | 2020-06-16 | 2020-08-28 | 江苏贝特管件有限公司 | End face sealing structure for rotary compensator and rotary compensator |
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