CN105805470A - Sealed type rotation compensator with V-shaped end faces - Google Patents
Sealed type rotation compensator with V-shaped end faces Download PDFInfo
- Publication number
- CN105805470A CN105805470A CN201610295170.6A CN201610295170A CN105805470A CN 105805470 A CN105805470 A CN 105805470A CN 201610295170 A CN201610295170 A CN 201610295170A CN 105805470 A CN105805470 A CN 105805470A
- Authority
- CN
- China
- Prior art keywords
- face
- sealing
- seal receptacle
- interior pipe
- inner pipe
- 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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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
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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
- 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
Abstract
The invention discloses a sealed type rotation compensator with V-shaped end faces. The sealed type rotation compensator comprises an inner pipe, a gland, a bolt, padding, an anti-attrition mat and a sealing socket. The inner pipe and the padding which are in coaxial fit with the sealing socket are axially limited through an inwards-convex circular bead, the gland arranged on the inner pipe in a sleeving manner is connected with the sealing socket through the bolt, and the pressed gland applies pressure to the padding to form an adjustable shaft sealing structure for the inner pipe relative to the sealing socket. According to the sealed type rotation compensator, the end faces where an inwards-convex circular bead of the sealing socket and an outwards-convex circular bead of the inner pipe are matched are in V-shaped embedded type fit, and the end faces where the inwards-convex circular bead of the sealing socket and the outwards-convex circular bead of the inner pipe are combined are separated through the anti-attrition mat. According to the sealed type rotation compensator, the V-shaped end faces where the sealing socket and the inner pipe are matched are actually positive and negative conical surface combination bodies, the self-centering effect is achieved during pairing, the most advantage of fixed shaft rotation is that the self compensation ability is achieved when the conical surfaces are abraded, and therefore the sealing performance of the sealing structure is stable and durable. Additionally, the paired V-shaped end faces are curve faces, and the bending structure has the pressure damping capacity and the dual sealing effect, so that the sealed type rotation compensator is particularly suitable for mating under the high temperature and high pressure working conditions.
Description
Technical field
The present invention relates to a kind of pipe safety device, in particular it relates to a kind of pipeline compensator, particularly a kind of whirl compensator.
Background technology
In heat distribution pipe network running, produce displacement and the blind plate thrust of respective amount along with the pressure of built-in medium, temperature and variation of ambient temperature.Although these physical changes are very normal, but have great destructiveness, it is not added with administering the damage easily causing heat distribution pipe network and corollary equipment.So, must there is articulare place that the pipe line compensating device of necessity is set at heat distribution pipe network during engineering design.Now, operating mode is the heat distribution pipe network ducts compensator first-selection whirl compensator of high temperature, high pressure.Whirl compensator is a kind of novel pipeline compensation device integrating sleeve expansion joint and corrugated expansion joint advantage, and it has simple in construction, bearing capacity is strong, compensate the advantages such as flexible and safe and reliable.The technical scheme that China Patent Publication No. CN1908498A states clearly, is current most representational whirl compensator, and its emphasis solves end face seal problem.But, it is unreasonable that the whirl compensator of this technology seals structure, and the most clearly disadvantageous is there is bigger radial clearance between pairing rotating member.Irregular radial-play in interstice coverage directly reduces the axiality between counterpart, and its result is to worsen end face seal pair, causes leakage problem along with the increase of the end sealing pair degree of wear.Number of patent application: 2015102827795 be applicant in this case before the Technological improvement plan made for the problems referred to above, the program realizes location fit by conical surface sealing structure, and this structure directly improves axiality between pairing revolving part.But, the sealing pair in this technical scheme still falls within shrink-fit structure one class, and running under high temperature, high pressure operating mode still has micro-leakage problem.
Summary of the invention
The present invention mainly overcomes axiality difference and the not good enough problem of sealing property between prior art Large diameter pairing revolving part, it is proposed to a kind of simple in construction, make easily, V-arrangement sealed end face whirl compensator that accurate positioning, sealing are tight and lasting.
The present invention is achieved through the following technical solutions technical goal.
V-arrangement sealed end face whirl compensator, it includes interior pipe, gland, bolt, filler, anti-wear gasket and seal receptacle.Described seal receptacle is the reducer pipe of no-welding-seam structure, with the interior pipe of seal receptacle coaxial cooperation, filler by convex shoulder axial limiting, the gland of interior pipe box dress is bolted seal receptacle, and the gland pressure filler of pressurized constitutes the adjustable shaft seal structure that internal pipe opposing seal seat is slidably matched.It thes improvement is that: the end face that described seal receptacle convex shoulder matches with interior pipe evagination shoulder is embedded cooperation, is formed end face seal structure by anti-wear gasket is alternate between the end face that both combine.
As further improvement project, the end face axial cross section that described seal receptacle convex shoulder matches with interior pipe evagination shoulder is V-arrangement, and wherein the end face of seal receptacle convex shoulder is indent V-shaped groove, and the end face of interior pipe evagination shoulder is evagination V-arrangement platform.The angle of these v-shaped structures is equal, angle α=90 °～120 °.
As further improvement project, described anti-wear gasket axial cross section is identical with the axial cross section of seal receptacle internal shoulder or interior pipe evagination shoulder, and it is a kind of composite pad, and wherein intermediate layer is red copper matter skeleton, and surface layer is graphite material.
The present invention compared with prior art, has the positive effect that:
1, the V-arrangement end face of pairing forms concavo-convex chimeric sealing structure, bigger than the area of planar end at same radial size premise lower surface camber end face, and bending structure has decline of pressure ability, therefore applies under the applicable high pressure operating mode of the sealing pair formed；
2, alternate with anti-wear gasket between the V-arrangement faying face of seal receptacle and interior pipe, this structure makes full use of the flexibility of graphite and dense structure's property to improve the airtight quality of sealing pair, the intervention of anti-wear gasket both can have been played and avoid stiff dough directly to contact, and can make up again the mismatch error of pairing end face；
3, the V-arrangement end face matched is positive and negative conical surface coalition actually, has Self-centering Action during pairing, and the largest benefit of System of Rotating about Fixed Axis is that self-compensating ability occurs to have during abrasion the conical surface, therefore the sealing property of this sealing structure is stable and lasting.
Accompanying drawing explanation
Fig. 1 is present configuration generalized section.
Fig. 2 is Figure 1A place partial structurtes enlarged diagram.
Detailed description of the invention
Below according to accompanying drawing and in conjunction with the embodiments, the invention will be further described.
V-arrangement sealed end face whirl compensator shown in Fig. 1, it includes interior pipe 1, gland 2, bolt 3, filler 4, anti-wear gasket 5 and seal receptacle 6.Described seal receptacle 6 is a kind of reducer pipe, and it is the main component of whirl compensator, and its structural strength and the accuracy of manufacture directly affect pressure performance and the gyrating mass of product.Seal receptacle 6 in the present invention adopts overall structure, because of no-welding-seam in structure, is absent from the hidden danger such as weld defect and weld heat-affected zone, is remarkably improved anti-pressure ability, is also beneficial to improve the accuracy of manufacture, it is possible to meet High Temperature High Pressure service condition.With the interior pipe 1 of seal receptacle 6 coaxial cooperation, filler 4 by convex shoulder axial limiting, the gland 2 of interior pipe 1 suit connects seal receptacle 6 by bolt 3, and the gland 2 of the pressurized filler 4 that presses constitutes the adjustable shaft seal structure that interior pipe 1 opposing seal seat 6 is slidably matched.The whirl compensator run under high temperature, high pressure operating mode only can not meet seal request by place's shaft seal structure, end face seal structure must also be configured, end face seal in the present invention adopts V-arrangement damascene structures, and strengthens sealing with anti-wear gasket 5 between the end face combined at both.Described V-arrangement refers to that the end face axial cross section that seal receptacle 6 convex shoulder matches with interior pipe 1 evagination shoulder is V-arrangement, and as shown in Figure 2, the end face of seal receptacle 6 convex shoulder is axial indent V-shaped groove, and the end face of interior pipe 1 evagination shoulder is axial evagination V-arrangement platform.The V-arrangement angle of same whirl compensator configuration is equal, V-arrangement angle α is chosen between 90 °～120 °, the present embodiment bore is 800mm, design temperature 480 °, pressure is 20MPa, because the left side area of interior pipe 1 is relatively large, the blind plate thrust producing right lateral under built-in pressure medium effect is also corresponding bigger, because keeping interior pipe 1 sufficiently large with the power of seal receptacle 6 end face seal, therefore the end face embedded structure of configuration relatively flat just can meet supporting requirement, α=120 °, the present embodiment V-arrangement angle.
The V-arrangement end face actually positive and negative conical surface coalition that in the present invention, seal receptacle 6 and interior pipe 1 match, has Self-centering Action during pairing, the largest benefit of System of Rotating about Fixed Axis is that self-compensating ability occurs to have during abrasion the conical surface, therefore the sealing property of this sealing structure is stable and lasting.The V-arrangement end face adding pairing is curved surface, and this kind of bending structure had both had decline of pressure ability, had again double sealing effect, and the present invention is supporting when applicable high temperature, high-pressure work condition especially thus.
The motility of sealing property and rotation in order to improve sealing pair further, the present invention is alternate with anti-wear gasket 5 between the V-arrangement faying face of seal receptacle 6 and interior pipe 1, and this structure makes full use of the flexibility of graphite and dense structure's property to improve the airtight quality of sealing pair.The intervention of anti-wear gasket 5 both can have been played and avoid stiff dough directly to contact, and can make up again the mismatch error of pairing end face, thus reached to improve the purpose of sealing property.
Above-described embodiment is only one of preference of the present invention; the not restriction to claimed scope; as long as applying the technical scheme of integral seal seat 6 and end face V-arrangement insert seal structure in whirl compensator, each fall within the protection domain of claims of the present invention requirement.
Claims (4)
1. a V-arrangement sealed end face whirl compensator, it includes interior pipe (1), gland (2), bolt (3), filler (4), anti-wear gasket (5) and seal receptacle (6)；The reducer pipe that described seal receptacle (6) is no-welding-seam structure, with the interior pipe (1) of seal receptacle (6) coaxial cooperation, filler (4) by convex shoulder axial limiting, the gland (2) that interior pipe (1) is set with connects seal receptacle (6) by bolt (3), and the gland (2) pressure filler (4) of pressurized constitutes the adjustable shaft seal structure that internally pipe (1) opposing seal seat (6) is slidably matched；It is characterized in that: the end face that described seal receptacle (6) convex shoulder matches with interior pipe (1) evagination shoulder is embedded cooperation, between the end face that both combine, formed end face seal structure by anti-wear gasket (5) is alternate.
2. V-arrangement sealed end face whirl compensator according to claim 1, it is characterized in that: the end face axial cross section that described seal receptacle (6) convex shoulder matches with interior pipe (1) evagination shoulder is V-arrangement, wherein the end face of seal receptacle (6) convex shoulder is indent V-shaped groove, and the end face of interior pipe (1) evagination shoulder is evagination V-arrangement platform.
3. V-arrangement sealed end face whirl compensator according to claim 1, it is characterised in that: angle α=90 °～120 ° of described V-arrangement.
4. V-arrangement sealed end face whirl compensator according to claim 1, it is characterized in that: described anti-wear gasket (5) axial cross section is identical with the axial cross section of seal receptacle (6) internal shoulder or interior pipe (1) outer convex shoulder, it is a kind of composite pad, wherein intermediate layer is red copper matter skeleton, and surface layer is graphite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610295170.6A CN105805470A (en) | 2016-05-06 | 2016-05-06 | Sealed type rotation compensator with V-shaped end faces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610295170.6A CN105805470A (en) | 2016-05-06 | 2016-05-06 | Sealed type rotation compensator with V-shaped end faces |
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| Publication Number | Publication Date |
|---|---|
| CN105805470A true CN105805470A (en) | 2016-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610295170.6A Pending CN105805470A (en) | 2016-05-06 | 2016-05-06 | Sealed type rotation compensator with V-shaped end faces |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255201A (en) * | 2017-07-24 | 2017-10-17 | 江苏远通波纹管有限公司 | A kind of pipeline whirl compensator |
| CN110985750A (en) * | 2019-12-03 | 2020-04-10 | 兰州高压阀门有限公司 | Multi-block type valve seat structure for automatic seat-returning pressure regulating valve |
| WO2023155374A1 (en) * | 2022-02-15 | 2023-08-24 | 宋章根 | Internal pressure self-sealing rotary compensator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101012904A (en) * | 2007-02-03 | 2007-08-08 | 王向前 | Rotary compensator having compound supporting structure |
| CN201057337Y (en) * | 2007-06-29 | 2008-05-07 | 江苏五星波纹管有限公司 | Zero-thrust rotary compensator |
| US20090103973A1 (en) * | 2005-05-27 | 2009-04-23 | Airbus Deutschland Gmbh | Connector For An Articulated Connection of A First and Second Pipeline |
| CN104879597A (en) * | 2015-05-29 | 2015-09-02 | 江苏远通波纹管有限公司 | Self-positioning conical surface sealing type rotary compensator |
| CN205640010U (en) * | 2016-05-06 | 2016-10-12 | 江苏远通波纹管有限公司 | V -arrangement end face seal formula whirl compensator |
-
2016
- 2016-05-06 CN CN201610295170.6A patent/CN105805470A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090103973A1 (en) * | 2005-05-27 | 2009-04-23 | Airbus Deutschland Gmbh | Connector For An Articulated Connection of A First and Second Pipeline |
| CN101012904A (en) * | 2007-02-03 | 2007-08-08 | 王向前 | Rotary compensator having compound supporting structure |
| CN201057337Y (en) * | 2007-06-29 | 2008-05-07 | 江苏五星波纹管有限公司 | Zero-thrust rotary compensator |
| CN104879597A (en) * | 2015-05-29 | 2015-09-02 | 江苏远通波纹管有限公司 | Self-positioning conical surface sealing type rotary compensator |
| CN205640010U (en) * | 2016-05-06 | 2016-10-12 | 江苏远通波纹管有限公司 | V -arrangement end face seal formula whirl compensator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255201A (en) * | 2017-07-24 | 2017-10-17 | 江苏远通波纹管有限公司 | A kind of pipeline whirl compensator |
| CN110985750A (en) * | 2019-12-03 | 2020-04-10 | 兰州高压阀门有限公司 | Multi-block type valve seat structure for automatic seat-returning pressure regulating valve |
| WO2023155374A1 (en) * | 2022-02-15 | 2023-08-24 | 宋章根 | Internal pressure self-sealing rotary compensator |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160727 |