CN205779050U - cylinder interlayer structure - Google Patents
cylinder interlayer structure Download PDFInfo
- Publication number
- CN205779050U CN205779050U CN201620710679.8U CN201620710679U CN205779050U CN 205779050 U CN205779050 U CN 205779050U CN 201620710679 U CN201620710679 U CN 201620710679U CN 205779050 U CN205779050 U CN 205779050U
- Authority
- CN
- China
- Prior art keywords
- inner casing
- outer shell
- interlayer
- steam
- casing
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of cylinder interlayer structure, including outer shell and sheathed and in outer shell inner casing, the front end of inner casing is steam admission side, and rear end is exhaust region；There is leakage vapour passage near the front portion of inner casing, the interlayer between inner casing and outer shell is entered vapour phase with inner casing and connects；Leave gap between rear end and the rear end of outer shell of inner casing, and by crossing sealing member, the interlayer between sprue and inner casing and the outer shell of steam discharge is isolated；Offering some tunnels in the casing wall circumference of inner casing, the entrance of tunnel is positioned at the exhaust region end of inner casing, and outlet is positioned on the medial surface of inner casing near middle.This utility model is the sealing member (whole circle sealing) of outer shell in cylinder afterbody increases and connects, to stop interlayer steam flow to import the steam discharge district of sprue.Interior casing wall is opened tunnel (some tunnels are evenly arranged in interior casing wall circumferential cross-section), interlayer steam flow is introduced certain grade of sprue.Reclaim the acting ability of jacket steam, improve unit economy.
Description
[technical field]
This utility model belongs to energy class steam turbine power generation technical field, relates to a kind of cylinder interlayer structure.
[background technology]
The height of power plant high parameter large steam turbine, intermediate cylinder have dividing of interior outer shell, interior outer shell interlayer in operation
Between have steam to flow, as a example by the high pressure cylinder of combined cylinder turbine, steam flow is from the leakage vapour of high-pressure balancing piston packing, and leakage vapour is by folder
Converging with high pressure cylinder steam discharge after Ceng, this some vapor does not do work through high pressure cylinder, has certain economic loss.This part simultaneously
Steam can not lack again, because it has cooling or heat effect, such as when unit cold start, for making inner casing the rapidest
Synchronous Heating, to reduce the swollen difference of sound part and thermal stress, now cylinder is played heat effect by interlayer steam flow；Otherwise, shut down
In journey, this some vapor plays again cooling effect.Properly functioning even for some unit, inner casing temperature is the highest, and its heat is the most not
Disconnected eradiation, to outer shell, has the trend making outer shell overtemperature, and at this moment interlayer steam flow also plays cooling effect.
[utility model content]
The purpose of this utility model is to solve above-mentioned the problems of the prior art, it is provided that a kind of cylinder interlayer structure, main
If the interlayer leakage vapour after playing cooling or heat effect leads back certain grade of sprue in inner casing, improve unit economy.
For reaching above-mentioned purpose, this utility model is achieved by the following technical solutions:
A kind of cylinder interlayer structure, including outer shell and sheathed and in outer shell inner casing, the front end of inner casing is steam admission side, rear end
For exhaust region；There is leakage vapour passage near the front portion of inner casing, the interlayer between inner casing and outer shell is entered vapour phase with inner casing and connects；Inner casing
Rear end and the rear end of outer shell between leave gap, and by crossing sealing member by between sprue and inner casing and the outer shell of steam discharge
Interlayer is isolated；Offering some tunnels in the casing wall circumference of inner casing, the entrance of tunnel is positioned at the exhaust region end of inner casing, and outlet is positioned at
On the medial surface of inner casing near middle.
Compared with prior art, this utility model has the advantages that
This utility model is the sealing member (whole circle sealing) of outer shell in cylinder afterbody increases and connects, to stop interlayer steam flow to converge
Enter the steam discharge district of sprue.Interior casing wall is opened tunnel (some tunnels are evenly arranged in interior casing wall circumferential cross-section), by interlayer
Steam flow introduces certain grade of sprue.Reclaim the acting ability of jacket steam, improve unit economy.
[accompanying drawing explanation]
Fig. 1 is existing cylinder structure schematic diagram；
Fig. 2 is the schematic diagram of this utility model cylinder structure.
Wherein: 1-tunnel；2-sealing member；3-inner casing；4-outer shell.
[detailed description of the invention]
Below in conjunction with the accompanying drawings this utility model is described in further detail:
Seeing Fig. 2, this utility model cylinder interlayer structure, including outer shell 4 and sheathed and in outer shell 4 inner casing 3, inner casing 3
Front end be steam admission side, rear end is exhaust region；Leakage vapour passage is had, by the folder between inner casing 3 and outer shell 4 near the front portion of inner casing 3
Layer enters vapour phase with inner casing 3 and connects；Gap is left between rear end and the rear end of outer shell 4 of inner casing 3, and will row by crossing sealing member 2
Interlayer isolation between sprue and inner casing 3 and the outer shell 4 of vapour, sealing member 2 is fixed connected mode with inner casing 3 and outer shell 4 and is not limited；
Offering some tunnels 1 in the casing wall circumference of inner casing 3, the entrance of tunnel 1 is positioned at the exhaust region end of inner casing 3, and outlet is positioned at inner casing 3
On the medial surface of near middle.The number of tunnel 1 requires to meet the flowing of jacket steam different operating mode with size.
Above content only illustrates technological thought of the present utility model, it is impossible to limit protection model of the present utility model with this
Enclose, every according to the technological thought that the utility model proposes, any change done on the basis of technical scheme, each fall within this reality
Within protection domain with novel claims.
Claims (1)
1. cylinder interlayer structure, it is characterised in that include outer shell (4) and sheathed and in outer shell (4) inner casing (3), inner casing (3)
Front end is steam admission side, and rear end is exhaust region；Leakage vapour passage is had, by between inner casing (3) and outer shell (4) near the front portion of inner casing (3)
Interlayer enter vapour phase with inner casing (3) and connect；Gap is left between rear end and the rear end of outer shell (4) of inner casing (3), and by overstocked
Interlayer between sprue and inner casing (3) and the outer shell (4) of steam discharge is isolated by sealing (2)；Offer in the casing wall circumference of inner casing (3)
Some tunnels (1), the entrance of tunnel (1) is positioned at the exhaust region end of inner casing (3), and outlet is positioned at inner casing (3) near middle
On side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620710679.8U CN205779050U (en) | 2016-07-05 | 2016-07-05 | cylinder interlayer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620710679.8U CN205779050U (en) | 2016-07-05 | 2016-07-05 | cylinder interlayer structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205779050U true CN205779050U (en) | 2016-12-07 |
Family
ID=58124949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620710679.8U Expired - Fee Related CN205779050U (en) | 2016-07-05 | 2016-07-05 | cylinder interlayer structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205779050U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014504A (en) * | 2016-07-05 | 2016-10-12 | 西安西热节能技术有限公司 | Steam cylinder interlayer structure |
-
2016
- 2016-07-05 CN CN201620710679.8U patent/CN205779050U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014504A (en) * | 2016-07-05 | 2016-10-12 | 西安西热节能技术有限公司 | Steam cylinder interlayer structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20180705 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |