CN203560429U - Inner cylinder and outer cylinder sealing structure - Google Patents
Inner cylinder and outer cylinder sealing structure Download PDFInfo
- Publication number
- CN203560429U CN203560429U CN201320638730.5U CN201320638730U CN203560429U CN 203560429 U CN203560429 U CN 203560429U CN 201320638730 U CN201320638730 U CN 201320638730U CN 203560429 U CN203560429 U CN 203560429U
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- Prior art keywords
- sealing plate
- sealing
- outer shell
- hangers
- groove
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- Expired - Lifetime
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- 238000007789 sealing Methods 0.000 title claims abstract description 90
- 230000000694 effects Effects 0.000 abstract description 10
- 238000009434 installation Methods 0.000 description 9
- 210000004907 gland Anatomy 0.000 description 5
- 238000013475 authorization Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
The utility model discloses an inner cylinder and outer cylinder sealing structure which comprises an inner cylinder (1), an outer cylinder (2) and a sealing plate (3), and is characterized in that the inner cylinder (1) is provided with an inner groove (4), and the outer cylinder (2) is provided with an outer groove (5); the sealing plate (3) is arranged slantly; the two ends of the sealing plate are respectively connected with the corresponding inner groove (4) and outer groove (5) in a buckling manner. Through the combination and innovation of the structures of the inner cylinder, the outer cylinder and the sealing plate as well as the connecting structure of the inner cylinder, the outer cylinder and the sealing plate, the utility model provides the inner cylinder and outer cylinder sealing structure which has the advantages as follows: the structure is simple, the cost is low, the mounting and dismounting are convenient, and the sealing effect is good.
Description
Technical field
The utility model relates to a kind of sealing configuration, relates in particular the sealing configuration for a kind of interior outer shell of intermediate pressure cylinder.
Background technique
Intermediate pressure cylinder, is a constituent element of steam turbine, has two kinds of single current and double fluids.It and high-pressure cylinder, low pressure (LP) cylinder are arranged side by side, and difference is just in the difference of internal pressure.Sealing between the interior outer shell of intermediate pressure cylinder is the problem that people pay special attention to always.In the prior art, generally on inner casing or outer shell, to process a seal ring, groove on outer shell or inner casing that sealing ring is corresponding with it is suitable, then by the differential expansion between interior outer shell or pressure reduction, realizes sealing, has the bad problem of sealing effect.After seal ring breakage, there is again inconvenient and the high problem of cost changed.For example Chinese patent notice of authorization CN 2825960 Y, October 11 2006 notice of authorization day, the name of innovation and creation is called outer shell steam leakage-prevention stacked sealing device in turbine high-pressure, this Patent Case discloses a kind of seal arrangement of interior outer shell, by the structure innovation of seal ring, gasket ring, wavy spring and guiding gasket ring, realized the feature of the easy for installation and Self-resetting stability of sealing device, but the seal ring of this Patent Case is arranged on the outer surface of inlet sleeve, seal ring does not have stressed, and sealing device exists the bad problem of sealing effect.For another example Chinese patent notice of authorization CN 202834500 U, at on 03 27th, 2013 notice of authorization day, the name of innovation and creation is called the whole clearance type packing of a kind of multiple, self-adjusting, this patent discloses a kind of gland seal structure, pass through base, link, intubate, the structure of air guide sleeve pipe and reducing packing and the combined innovation of annexation, it is convenient that this gland seal structure is installed and overhauled, effectively prevent slit source vapour, reduce the pressure loss, but the gland sealing gear of this Patent Case reducing packing is arranged on the outer wall of intubate, between intubate and gland sealing gear, there is gap, there is the bad problem of sealing effect in this gland seal structure.The utility model by interior outer shell and sealing plate the combined innovation of structure and linkage structure thereof, provide a kind of simple in structure, cost is low, installation and removal are changed convenient, the sealing configuration of the interior outer shell of good sealing effect.
Summary of the invention
The utility model solves general interior outer shell in prior art does not have effectively to solve the bad problem of sealing effect, a kind of sealing configuration of interior outer shell is provided, by interior outer shell and sealing plate the combined innovation of structure and linkage structure thereof, it is low that the sealing configuration of realizing this interior outer shell has cost, installation and removal are changed convenient, the feature of good sealing effect.
In order to solve the technical problem of above-mentioned existence, the utility model is taked following technical proposals: a kind of sealing configuration of interior outer shell, comprise inner casing, outer shell and sealing plate, it is characterized in that, described inner casing is provided with inner groovy, outer shell is provided with outer groove, and described sealing plate is obliquely installed, sealing plate two ends respectively with corresponding inner groovy and outer groove snapping.
When mounted, as long as sealing plate is buckled into inside and outside groove corresponding to interior outer shell lock at a slant.In dismounting with while changing, as long as the snapping relation of depressurization plate and inside and outside groove one by one just can be extracted sealing plate out, and new sealing plate correspondence be buckled into the groove of interior outer shell.Inner groovy and outer groove, simple in structure, for sealing plate installation; Sealing plate two ends and corresponding inside and outside groove snapping, installation and removal are changed convenient, compared with seal ring structure in original technology, it is convenient to change, replacement cost is low; Sealing plate is obliquely installed, and before intermediate pressure cylinder work, sealing plate just produces interaction force with the groove of interior outer shell, and in sealing state, compared with seal arrangement in two documents, sealing effect is better.Sealing configuration cost of the present utility model is low, and installation and removal are changed convenient, good sealing effect.
Preferably, the sealing configuration of described interior outer shell also comprises hangers, and described inner casing is provided with the locating slot suitable with hangers, and described hangers is connected by hexagon socket head cap screw with inner casing, hangers and sealing plate end is spacing is connected.Hangers and sealing plate end is spacing is connected, prevent sealing plate displacement and loosening, improve the stability of sealing; Hangers is connected by hexagon socket head cap screw with inner casing, and installation and removal are convenient.
Preferably, described hangers is provided with tab, and described sealing plate is provided with the pit suitable with tab.This kind of limit method, simple in structure, processing and easy for installation.
Preferably, described sealing plate side be provided with stiffening rib.Stiffening rib, the intensity of enhanced leaktightness plate, extend sealing plate working life.
Owing to taking above-mentioned technological scheme, the sealing configuration of a kind of interior outer shell that the utility model provides has such beneficial effect: intensity is good, long service life, by interior outer shell and sealing plate the combined innovation of structure and linkage structure thereof, provide a kind of simple in structure, cost is low, and installation and removal are changed convenient, the sealing configuration of the interior outer shell of good sealing effect.
accompanying drawing explanation:
Accompanying drawing 1 is interior outer shell sealing configuration of the prior art;
Accompanying drawing 2 is that the A of accompanying drawing 1 is to enlarged view;
Accompanying drawing 3 is structural representation of the present utility model;
Accompanying drawing 4 is that the B-B of the utility model accompanying drawing 3 is to sectional view.
In figure: outer groove 5 hangers 6 locating slot 7 hexagon socket head cap screw 8 tab 9 pit 10 stiffening ribs 11 of inner casing 1 outer shell 2 sealing plate 3 inner groovy 4
embodiment:
Consult accompanying drawing, the utility model be described in further detail:
Embodiment one: by reference to the accompanying drawings 3, and a kind of sealing configuration of interior outer shell, comprises inner casing 1, outer shell 2 and sealing plate 3, inner casing 1 is provided with inner groovy 4, outer shell 2 is provided with outer groove 5, and sealing plate 3 is obliquely installed, the two ends of sealing plate 3 respectively with corresponding inner groovy 4 and outer groove 5 snappings.
When mounted, as long as sealing plate is buckled into inside and outside groove corresponding to interior outer shell lock at a slant.In dismounting with while changing, as long as the snapping relation of depressurization plate and inside and outside groove one by one just can be extracted sealing plate out, and new sealing plate correspondence be buckled into the groove of interior outer shell.
Embodiment two, by reference to the accompanying drawings 3 and 4, a kind of sealing configuration of interior outer shell, comprise inner casing 1, outer shell 2, sealing plate 3 and hangers 6, inner casing 1 is provided with inner groovy 4, outer shell 2 is provided with outer groove 5, sealing plate 3 is obliquely installed, the two ends of sealing plate 3 respectively with corresponding inner groovy 4 and outer groove 5 snappings, inner casing 1 is provided with the locating slot 7 suitable with hangers 6, and hangers 6 is connected by hexagon socket head cap screw 8 with inner casing 1, and hangers 6 is provided with tab 9, sealing plate 3 is provided with the pit 10 suitable with tab 9, and the side of sealing plate 3 is provided with stiffening rib 11.
When mounted, first hangers is put into the locating slot of inner casing, then by sealing plate one end and inner groovy snapping, make the tab of hangers be just arranged on sealing plate in pit, then the outer groove of the sealing plate the other end and outer shell is interlockingly connected, sealing plate is tilted, finally by hexagon socket head cap screw, by fastening to hangers and inner casing, be connected.When dismounting and replacing, as long as back-out hexagon socket head cap screw, just all parts can be disassembled one by one, and new sealing plate is reinstalled.
Above-described two specific embodiments, are described in detail the utility model.Applied specific embodiment herein principle of the present utility model and mode of execution are set forth, embodiment's explanation is just for helping to understand core concept of the present utility model.Should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model core concept; can also carry out some modifications to the utility model; such as sealing plate thickness and material characteristics, the structure characteristic of hangers and the structure characteristic of stiffening rib etc. carry out some modifications or combination, within all should dropping on the protection domain of the utility model claim.
Claims (4)
1. the sealing configuration of outer shell in a kind, comprise inner casing (1), outer shell (2) and sealing plate (3), it is characterized in that, described inner casing (1) is provided with inner groovy (4), outer shell (2) is provided with outer groove (5), described sealing plate (3) is obliquely installed, the two ends of sealing plate (3) respectively with corresponding inner groovy (4) and outer groove (5) snapping.
2. the sealing configuration of a kind of interior outer shell according to claim 1, it is characterized in that, the sealing configuration of described interior outer shell also comprises hangers (6), described inner casing (1) is provided with the locating slot (7) suitable with hangers (6), described hangers (6) is connected by hexagon socket head cap screw (8) with inner casing (1), the spacing connection of end of hangers (6) and sealing plate (3).
3. the sealing configuration of a kind of interior outer shell according to claim 2, is characterized in that, described hangers (6) is provided with tab (9), and described sealing plate (3) is provided with the pit (10) suitable with tab (9).
4. the sealing configuration of a kind of interior outer shell according to claim 1, is characterized in that, the side of described sealing plate (3) is provided with stiffening rib (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320638730.5U CN203560429U (en) | 2013-10-17 | 2013-10-17 | Inner cylinder and outer cylinder sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320638730.5U CN203560429U (en) | 2013-10-17 | 2013-10-17 | Inner cylinder and outer cylinder sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203560429U true CN203560429U (en) | 2014-04-23 |
Family
ID=50510150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320638730.5U Expired - Lifetime CN203560429U (en) | 2013-10-17 | 2013-10-17 | Inner cylinder and outer cylinder sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203560429U (en) |
-
2013
- 2013-10-17 CN CN201320638730.5U patent/CN203560429U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140423 |
|
| CX01 | Expiry of patent term |