CN204099806U - Anti-deformation double seal sleeve barrel compensator - Google Patents
Anti-deformation double seal sleeve barrel compensator Download PDFInfo
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- CN204099806U CN204099806U CN201420507135.2U CN201420507135U CN204099806U CN 204099806 U CN204099806 U CN 204099806U CN 201420507135 U CN201420507135 U CN 201420507135U CN 204099806 U CN204099806 U CN 204099806U
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- sealing load
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- core pipe
- double seal
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Abstract
The utility model provides a kind of anti-deformation double seal sleeve barrel compensator, comprise core pipe, limit pull rod, Gland, outer sleeve, sealing material and annular baffle ring, also comprise guide tracked sealing load tongue and guide tracked sealing load groove, guide tracked sealing load tongue is fixed on core pipe, guide tracked sealing load groove and collar stop are fixed on outer sleeve, guide tracked sealing load groove and guide tracked sealing load tongue are metal spigot and socket type sealing configuration, outer sleeve is connected by Gland and limit pull rod with core pipe, double seal cavity is formed between outer sleeve and core pipe.This sleeve expansion joint structure, during the work of heat supply network pipeline, operational excellence, No leakage.Adopt metallic type anti-deformation structure, the rigidity of guide tracked bearing member is utilized to solve filler in the past because the problem extruded occurs for the core pipe that causes of the reasons such as assembling, setting of ground and filler, extruding place frictional force aggravation when avoiding product work, core pipe scratches filler, causes sealability to reduce.
Description
Technical field
The utility model relates to a kind of sleeve expansion joint, especially a kind of anti-deformation double seal sleeve barrel compensator, mainly for the matching used compensator field of heat distribution pipe network.
Background technique
Use corrugated expansion joint, whirl compensator and natural compensation as compensation device in a large number in industry heat distribution pipe network, although all each own certain compensation ability of above-mentioned compensator, actual operation requirements can not be met completely.Corrugated expansion joint feature is that compensation ability is large, take up an area little, but manufacture requirements is higher, price is high, be applicable to low pressure large-diameter pipeline, whirl compensator list group compensation ability is large, and cost is not high, but the easy slacken leak of stuffing box packing, natural compensation structure is simple, reliable, little investment, but floor space is excessive, require higher to support.The sleeve expansion joint utilizing axial displacement to do thermal compensation absorption is a kind of pipeline compensator updated, and has the features such as large, the withstand voltage height of long distance delivery compensation rate, good stability.Sleeve expansion joint generally adopts soft packing to seal, and frictional contact surface adopts chromium plating, the technique such as zinc-plated carries out antifriction, and sleeve expansion joint relies on above-mentioned advantage, is widely used in heat supply network industry at present.
It is large that sleeve expansion joint has nose balance amount, the advantages such as surface friction drag is little, and cost is low, before the eighties in last century, FlexbleJoint was applied to compensation of pipeline, sleeve expansion joint is used widely always, but sealing place is easily revealed, and the shortcoming that need overhaul limits its extensive development.In recent years, along with the progress of sealing new material, the shortcoming that sleeve expansion joint is easily revealed necessarily is alleviated; Structure have also been made part to improve, reality also uses in producing in a large number.
First generation sleeve expansion joint, when transmitting high temperature media, filler is heated and easily hardens, and produces wearing and tearing, affects sealability; The multi-turn graphite of packing seal many employings in the past or asbestos packing seal, and adopt the filler of the too much number of turns, partly can improve sealability, but frictional force when considerably increasing axial displacement; Filler because the reason such as foundation settlement and assembly error is subject to the extruding of core pipe, can scratches filler, affects sealing; To this, the solution that there is no at present.
Find through retrieval, application number is the patent of invention High Temperature High Pressure slip-type expansion joint of 201210043149.9, adopt graphite packing as sealed member, although good sealing function can be realized, but long pack length, add the area of contact of stuffing box packing and core pipe, add frictional force, affect axial displacement sliding effect.The patent No. is the patent of invention composite closed type sleeve compensator for steam of 200910012083.5, positioning ring is adopted to realize location and guide function, filling type structure is adopted to adjust sealability, positioning ring is used to be convenient to a certain extent location is installed, but can not solve because foundation settlement, the core pipe that the reasons such as alignment error cause and the extruding problem of filler, compensator entirety does not have certain bending resistance, filling type structure adopts the filler of soft-filler to wearing and tearing to compensate, but cannot abrading section be distinguished in actual use, the filler wearing and tearing of pump nozzle position can only be compensated.Therefore a kind of new product that can solve the problems such as compensator easily leaks, stuffing box packing quick abrasion is needed now badly.
Model utility content
Technical problem to be solved in the utility model is, overcomes the shortcoming of prior art, provides a kind of double seal and has the sleeve expansion joint of certain counter-bending deformability.
In order to solve above technical problem, the utility model provides a kind of anti-deformation double seal sleeve barrel compensator, comprise core pipe, limit pull rod, Gland, outer sleeve, sealing material and annular baffle ring, it is characterized in that: also comprise guide tracked sealing load tongue and guide tracked sealing load groove, described guide tracked sealing load tongue is fixed on described core pipe, described guide tracked sealing load groove and collar stop are fixed on described outer sleeve, described sealing material is arranged between Gland and annular baffle ring, described guide tracked sealing load groove and guide tracked sealing load tongue are metal spigot and socket type sealing configuration, described outer sleeve is connected by Gland and limit pull rod with core pipe, double seal cavity is formed between described outer sleeve and core pipe.
The technological scheme that the utility model limits further is:
Further, the tongue sectional shape of described guide tracked sealing load tongue is the trapezoidal structure of surface protruding tape arc-shaped, and the channel section shape of described guide tracked sealing load groove is the trapezoidal structure of surface indentation band arc-shaped.
Further, the slot type track of described guide tracked sealing load groove and guide tracked sealing load tongue is four, and the circumference along guide tracked sealing load groove and guide tracked sealing load tongue is arranged symmetrically and evenly.
Further, between described core pipe and limit pull rod, elastomer is installed.
Further, described elastomer adopts and has resilience and the material can resisting pressure medium thrust is made.
Further, described guide tracked sealing load groove circumference arranges annular seal groove, is placed with annular nonmetal seal ring in described annular seal groove.Rely on nonmetal seal ring to seal guide rail axial component, realizing tongue when sleeve expansion joint carries out thermal compensation can carry out sliding and having sealability along the track of groove, and the guide rail running length of fluting should equal product thermal compensation value.
Further, described guide tracked sealing load tongue and guide tracked sealing load groove adopt counter-bending deformability and the low high-strength material of its own face friction factor is made.
Further, described sealing material is the flexible graphite packing with antioxidant coating.Sealing material is based on Expanded graphite, flexible graphite packing adds novel graphite antioxidant coating, effectively block under high temperature media effect, suppress filler to be oxidized and auto-oxidation process, keep the good resilience of filler, ensure the permanence operation of end face seal.
Further, also comprise reducer, described reducer and described outer sleeve are welded and fixed.
The beneficial effects of the utility model are: this sleeve expansion joint adopts double sealing structure and the metallic type anti-deformation structure of guide tracked metal sealing and end face seal, during the work of heat supply network pipeline, and operational excellence, No leakage.Adopt metallic type anti-deformation structure, the rigidity of guide tracked bearing member is utilized to solve filler in the past because the problem extruded occurs for the core pipe that causes of the reasons such as assembling, setting of ground and filler, extruding place frictional force aggravation when avoiding product work, core pipe scratches filler, causes sealability to reduce.Adopting double sealing structure to change in the past single packing seal, the path utilizing the guide tracked Sealing of slot type only to allow by specifying to realize medium, realizing medium and blocking, realizing the second resealing effect.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described.
Fig. 1 is anti-deformation double seal sleeve barrel compensator structural representation.
Fig. 2 is guide tracked sealing load groove structure schematic diagram.
Fig. 3 is guide tracked sealing load tongue structural representation.
Embodiment
embodiment 1
The reducer 11 that the anti-deformation double seal sleeve barrel compensator that the present embodiment provides comprises core pipe 1, elastomer 2, caging bolt 3, Gland 4, outer sleeve 5, flexible graphite packing 6, annular baffle ring 7, guide tracked sealing load tongue 8, seal ring 9, guide tracked sealing load groove 10 and is welded on outer sleeve 5.
Guide tracked sealing load tongue 8 is fixed on core pipe 1, guide tracked sealing load groove 10 and collar stop 7 are fixed on outer sleeve 5, flexible graphite packing 6 is arranged between Gland 4 and annular baffle ring 7, guide tracked sealing load groove 10 and guide tracked sealing load tongue 8 are metal spigot and socket type sealing configuration, outer sleeve 5 is connected by Gland 4 and limit pull rod 3 with core pipe 1, forms double seal cavity between outer sleeve 5 and core pipe 1.
The tongue sectional shape of guide tracked sealing load tongue 8 is the trapezoidal structure of surface protruding tape arc-shaped, and the channel section shape of guide tracked sealing load groove 10 is the trapezoidal structure of surface indentation band arc-shaped.The slot type track of guide tracked sealing load groove 10 and guide tracked sealing load tongue 8 is four, and the circumference along guide tracked sealing load groove 10 and guide tracked sealing load tongue 8 is arranged symmetrically and evenly.
Elastomer 2 is arranged between core pipe 1 and caging bolt 3, and guide tracked sealing load groove 10 circumference arranges annular seal groove, and the nonmetal seal ring 9 of annular of low coefficient of friction and good seal performance is placed in annular seal groove.
During work, when heat-net-pipeline internal pressure rises, MEDIA FLOW is to gap between core pipe 1 and guide tracked sealing load groove 10, guide tracked sealing load groove 10 is metal spigot and socket type sealing configuration with guide tracked sealing load tongue 8, guide tracked sealing load groove 10 circumference arranges annular seal groove, place seal ring 9 in annular seal groove to flow out with the gap guide tracked sealing load tongue 8 from guide tracked sealing load groove 10 for blocking medium, realize the first resealing effect, on the other hand, flexible graphite packing sealing 6, fit with outer sleeve 5 and core pipe 1 intimate under the effect of caging bolt 3 impacting force and reach end face seal effect, realize the second resealing effect, run into because foundation settlement, assemble the improper core pipe 1 caused and flexible graphite packing seal 6 occur to extrude time, utilize counter-bending guide-rail structure guide tracked sealing load groove 10 with and guide tracked sealing load tongue 10 with Gland 4 rigidity load-carrying construction part to realize sharing of flexural stress, keep filler two ends stress balance, change filler be in the past subject to core pipe bend skew cause filler to be subject to the extruding of local direction, jam phenomenon can not be produced when product is moved, add filler working life, improve the sealability of product.
The advantage of the present embodiment can be summarized as: 1) have employed guide tracked metal socket joint sealing configuration, medium trend is fixed on regulation circuit, realizes sealing.2) flexible graphite packing with the addition of novel antioxidant, delays filler oxidation rate under the high temperature conditions, keeps the good rebound elasticity of filler, makes radial seal respond well.3) counter-bending guide-rail structure, utilizes structure self rigidity to resist the flexural stress of core pipe to filler, improves Total Product non-deformability, be conducive to product stable.
The utility model had both been applicable to the conveying of heat supply network industry hot water, steam medium, was also applicable to petrochemical industry, electric power, iron and steel, occasion such as nuclear power industry conveying air, condensed water etc.
In addition to the implementation, the utility model can also have other mode of executions.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (9)
1. anti-deformation double seal sleeve barrel compensator, comprise core pipe, limit pull rod, Gland, outer sleeve, sealing material and annular baffle ring, it is characterized in that: also comprise guide tracked sealing load tongue and guide tracked sealing load groove, described guide tracked sealing load tongue is fixed on described core pipe, described guide tracked sealing load groove and collar stop are fixed on described outer sleeve, described sealing material is arranged between Gland and annular baffle ring, described guide tracked sealing load groove and guide tracked sealing load tongue are metal spigot and socket type sealing configuration, described outer sleeve is connected by Gland and limit pull rod with core pipe, double seal cavity is formed between described outer sleeve and core pipe.
2. anti-deformation double seal sleeve barrel compensator according to claim 1, it is characterized in that: the tongue sectional shape of described guide tracked sealing load tongue is the trapezoidal structure of surface protruding tape arc-shaped, the channel section shape of described guide tracked sealing load groove is the trapezoidal structure of surface indentation band arc-shaped.
3. anti-deformation double seal sleeve barrel compensator according to claim 1 and 2, it is characterized in that: the slot type track of described guide tracked sealing load groove and guide tracked sealing load tongue is four, the circumference along guide tracked sealing load groove and guide tracked sealing load tongue is arranged symmetrically and evenly.
4. anti-deformation double seal sleeve barrel compensator according to claim 1, is characterized in that: be provided with elastomer between described core pipe and limit pull rod.
5. anti-deformation double seal sleeve barrel compensator according to claim 4, is characterized in that: described elastomer adopts has resilience and the material can resisting pressure medium thrust is made.
6. anti-deformation double seal sleeve barrel compensator according to claim 1, is characterized in that: described guide tracked sealing load tongue and guide tracked sealing load groove adopt counter-bending deformability and the low high-strength material of its own face friction factor is made.
7. anti-deformation double seal sleeve barrel compensator according to claim 1, is characterized in that: described guide tracked sealing load groove circumference arranges annular seal groove, is placed with annular nonmetal seal ring in described annular seal groove.
8. anti-deformation double seal sleeve barrel compensator according to claim 1, is characterized in that: described sealing material is the flexible graphite packing with antioxidant coating.
9. anti-deformation double seal sleeve barrel compensator according to claim 1, is characterized in that: also comprise reducer, and described reducer and described outer sleeve are welded and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420507135.2U CN204099806U (en) | 2014-09-03 | 2014-09-03 | Anti-deformation double seal sleeve barrel compensator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420507135.2U CN204099806U (en) | 2014-09-03 | 2014-09-03 | Anti-deformation double seal sleeve barrel compensator |
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| CN204099806U true CN204099806U (en) | 2015-01-14 |
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| CN201420507135.2U Active CN204099806U (en) | 2014-09-03 | 2014-09-03 | Anti-deformation double seal sleeve barrel compensator |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107664242A (en) * | 2016-07-29 | 2018-02-06 | 江苏金通机械有限公司 | Heat-insulated sealing Zero-thrust sleeve type compensator |
| CN107664240A (en) * | 2016-07-29 | 2018-02-06 | 江苏金通机械有限公司 | The self-contained whirl compensator of new three sealing |
| CN108105498A (en) * | 2018-02-01 | 2018-06-01 | 辽宁三三工业有限公司 | A kind of novel pipeline extension apparatus |
| CN108131525A (en) * | 2018-01-22 | 2018-06-08 | 南通中远克莱芬船舶工程有限公司 | A kind of dehumidifier socket wrench specially adapted for it compensator |
| CN108980502A (en) * | 2018-09-13 | 2018-12-11 | 江苏永昌膨胀节有限公司 | A kind of high stability sleeve expansion joint |
| CN109911112A (en) * | 2017-12-13 | 2019-06-21 | 中国科学院沈阳自动化研究所 | It is a kind of for fixing the sliding rail rack of deep-sea compressive cabin |
-
2014
- 2014-09-03 CN CN201420507135.2U patent/CN204099806U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107664242A (en) * | 2016-07-29 | 2018-02-06 | 江苏金通机械有限公司 | Heat-insulated sealing Zero-thrust sleeve type compensator |
| CN107664240A (en) * | 2016-07-29 | 2018-02-06 | 江苏金通机械有限公司 | The self-contained whirl compensator of new three sealing |
| CN109911112A (en) * | 2017-12-13 | 2019-06-21 | 中国科学院沈阳自动化研究所 | It is a kind of for fixing the sliding rail rack of deep-sea compressive cabin |
| CN108131525A (en) * | 2018-01-22 | 2018-06-08 | 南通中远克莱芬船舶工程有限公司 | A kind of dehumidifier socket wrench specially adapted for it compensator |
| CN108105498A (en) * | 2018-02-01 | 2018-06-01 | 辽宁三三工业有限公司 | A kind of novel pipeline extension apparatus |
| CN108980502A (en) * | 2018-09-13 | 2018-12-11 | 江苏永昌膨胀节有限公司 | A kind of high stability sleeve expansion joint |
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