CN207620854U - A kind of semiclosed sream check device of thermal power plant's bearing housing - Google Patents
A kind of semiclosed sream check device of thermal power plant's bearing housing Download PDFInfo
- Publication number
- CN207620854U CN207620854U CN201721414324.5U CN201721414324U CN207620854U CN 207620854 U CN207620854 U CN 207620854U CN 201721414324 U CN201721414324 U CN 201721414324U CN 207620854 U CN207620854 U CN 207620854U
- Authority
- CN
- China
- Prior art keywords
- bearing housing
- main shaft
- steam turbine
- turbine main
- semiclosed
- 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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- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The utility model discloses a kind of semiclosed sream check devices of thermal power plant's bearing housing, including：The removable emptying shelves of steam turbine main shaft, bearing housing keep off vapour piece, U-shaped steam chest, fixing bolt, and the removable emptying shelves of bearing housing, gear vapour piece, U-shaped steam chest are from left to right sequentially equipped on the steam turbine main shaft, fixing bolt is used in combination to fix；The minor arc that the U-shaped steam chest is 120 °；It is provided with three oil grooves arranged in parallel on the removable emptying shelves of the bearing housing and steam turbine main shaft contact surface.The utility model solves the problems, such as Water in oil using simple mechanism, and prevents bearing housing negative pressure is low lubricating oil is caused to leak problem, there is that investment is small, simple in structure, resistance vapour effect is good.
Description
Technical field
The utility model belongs to power plant's machinery equipment field, specifically a kind of semiclosed gear vapour dress of thermal power plant's bearing housing
It sets.
Background technology
Turbine shaft seal and bearing housing from it is closer, when there are gland packing leakage is bigger than normal or cylinder leaks vapour situation for steam turbine
When can not deal carefully with, steam may build up among cylinder and bearing housing, and bearing is inhaled into the case of bearing housing negative pressure
It inside case, is combined with lubricating oil, causes Water in oil amount exceeded, cause the dangerous phenomenon of unit operation.If simple reduce
Bearing housing negative pressure may result in lubricating oil and leak, and causes fire and emits oil smoke phenomenon.
Invention content
The purpose of the utility model is to overcome the deficiencies in the prior art, and offer is a kind of simple in structure, and sealing effect is good,
Reduce a kind of semiclosed sream check device of thermal power plant's bearing housing that phenomena such as lubricating oil leaks, avoids fire occurs.
For achieving the above object, the utility model adopts the following technical solution：A kind of thermal power plant's bearing housing is semiclosed
Sream check device, including：The removable emptying shelves of steam turbine main shaft, bearing housing, gear vapour piece, U-shaped steam chest, fixing bolt, the steamer
The removable emptying shelves of bearing housing, gear vapour piece, U-shaped steam chest are from left to right sequentially installed on the big axis of machine, fixing bolt is used in combination to fix；Institute
The minor arc that the U-shaped steam chest stated is 120 °；It is provided with three on the removable emptying shelves of the bearing housing and steam turbine main shaft contact surface
Oil groove arranged in parallel.
The utility model has：Simple in structure, sealing effect is good, reduces the advantages of lubricating oil leaks.
Description of the drawings
Fig. 1 is the sectional view of the utility model.
Fig. 2 is the side view of the utility model.
1, steam turbine main shaft, 2, the removable emptying shelves of bearing housing, 3, gear vapour piece, 4, U-shaped steam chest, 5, fixing bolt.
Specific implementation mode
Illustrate, to the utility model, to be further elaborated below in conjunction with the accompanying drawings.
Fig. 1~Fig. 2 is the preferred embodiment of the utility model, and which show a kind of semiclosed gear vapour dresses of thermal power plant's bearing housing
It sets, including：The removable emptying shelves 2 of steam turbine main shaft 1, bearing housing, gear vapour piece 3, U-shaped steam chest 4, fixing bolt 5, the steam turbine
The removable emptying shelves 2 of bearing housing, gear vapour piece 3, U-shaped steam chest 4 are from left to right sequentially installed on big axis 1, are used in combination fixing bolt 5 solid
It is fixed；The minor arc that the U-shaped steam chest 4 is 120 °；The removable emptying shelves 2 of the bearing housing are set on 1 contact surface of steam turbine main shaft
It is equipped with three oil grooves arranged in parallel.
Steam outside bearing housing is stopped using semiclosed device, and bearing housing negative pressure is balanced, solves bearing
Case is directly sucked in steam and prevents bearing housing positive pressure problem.The present invention solves the problems, such as Water in oil using simple mechanism, and prevents
Stop that bearing housing negative pressure is low to cause lubricating oil to leak problem, has there is that investment is small, simple in structure, resistance vapour effect is good.
Claims (1)
1. a kind of semiclosed sream check device of thermal power plant's bearing housing, including：Steam turbine main shaft（1）, the removable emptying shelves of bearing housing（2）、
Keep off vapour piece（3）, U-shaped steam chest（4）, fixing bolt（5）, it is characterised in that：The steam turbine main shaft（1）On from left to right sequentially
The removable emptying shelves of bearing housing are installed（2）, gear vapour piece（3）, U-shaped steam chest（4）, fixing bolt is used in combination（5）It is fixed；Described is U-shaped
Steam chest（4）For 120 ° of minor arc；The removable emptying shelves of the bearing housing（2）With steam turbine main shaft（1）Three are provided on contact surface
Item oil groove arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721414324.5U CN207620854U (en) | 2017-10-30 | 2017-10-30 | A kind of semiclosed sream check device of thermal power plant's bearing housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721414324.5U CN207620854U (en) | 2017-10-30 | 2017-10-30 | A kind of semiclosed sream check device of thermal power plant's bearing housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207620854U true CN207620854U (en) | 2018-07-17 |
Family
ID=62826657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721414324.5U Expired - Fee Related CN207620854U (en) | 2017-10-30 | 2017-10-30 | A kind of semiclosed sream check device of thermal power plant's bearing housing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207620854U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826673A (en) * | 2019-02-28 | 2019-05-31 | 山东赫德能源科技有限公司 | A kind of structure preventing water inlet and oil leak in steam turbine oil |
-
2017
- 2017-10-30 CN CN201721414324.5U patent/CN207620854U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826673A (en) * | 2019-02-28 | 2019-05-31 | 山东赫德能源科技有限公司 | A kind of structure preventing water inlet and oil leak in steam turbine oil |
| CN109826673B (en) * | 2019-02-28 | 2021-04-06 | 山东赫德能源科技有限公司 | Structure for preventing water from entering and oil from leaking from steam turbine oil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180717 Termination date: 20181030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |