CN211116151U - Improved structure of turbine generator bearing box - Google Patents
Improved structure of turbine generator bearing box Download PDFInfo
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- CN211116151U CN211116151U CN201922236803.8U CN201922236803U CN211116151U CN 211116151 U CN211116151 U CN 211116151U CN 201922236803 U CN201922236803 U CN 201922236803U CN 211116151 U CN211116151 U CN 211116151U
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- turbine
- bearing
- shell body
- turbine bearing
- inner tube
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Abstract
The utility model provides an improved structure of turbine generator bearing box, including the shell body, install the inner tube in the shell body, be provided with turbine bearing support washer in the inner tube, turbine bearing installs in turbine bearing support washer, and turbine bearing passes through oil blanket ring and axle seal circle with the front end of turbine bearing support washer butt joint department and seals, and the front end of shell body passes through the front shroud and seals, and the rear end of shell body passes through the back shroud and seals, is provided with the radial support that five other than the casing centre of a circle distribute for the center on the shell body. This turbine generator bearing box's improvement structure is through installing turbine bearing in turbine bearing supporting washer, and after turbine bearing is heated, because turbine bearing supporting washer has certain elasticity, the turbine bearing after the permission is heated has certain thermal expansion, can alleviate the relative extrusion of turbine bearing and bearing box butt joint department, and then improves turbine bearing's life and transmission efficiency.
Description
Technical Field
The utility model relates to a power generation facility technical field, concretely relates to turbine generator bearing box's improvement structure.
Background
The turbine generator system is divided into the following parts according to different processes: combined cycle, simple cycle and pre-cycle. The combined cycle is a common process of a newly built power plant, and usually a waste heat boiler recovers exhaust gas of a gas turbine to generate steam, and then drives a steam turbine to generate power, or directly provides the steam. The lithium bromide absorption refrigerator can refrigerate by recovering exhaust waste heat of a gas turbine or a waste heat boiler or medium-low pressure steam of the waste heat boiler, so as to realize combined cycle of heat, cold and power.
The turbine generator generally comprises a turbine, a gearbox, a generator, an air inlet supercharger and an exhaust system, wherein the most important part of the turbine is a rotor which is arranged on a turbine shaft and provided with blades which are uniformly arranged along the circumference, a bearing box is used for supporting the rotor at the turbine end, the existing bearing box has poor heat dissipation performance, particularly in the high-speed rotation process of the rotor, heat is generated to cause the bearing of the shaft at the mounting end to generate thermal expansion, the existing bearing box and the bearing are in rigid contact, the bearing box is pressed after the bearing generates the thermal expansion, and the pressing between the bearing and the pressed bearing box can reduce the service life and the transmission efficiency of the bearing.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides an improvement structure of turbine generator bearing box can alleviate the relative extrusion of turbine bearing and bearing box butt joint department, and then improves turbine bearing's life and transmission efficiency.
In order to realize the technical scheme, the utility model provides an improved structure of turbine generator bearing box, which comprises an outer shell body, install the inner tube in the outer shell body, be provided with turbine bearing support washer in the inner tube, turbine bearing installs in the turbine bearing support washer to turbine bearing passes through oil seal ring and shaft seal circle with the front end of turbine bearing support washer butt joint department and seals, and turbine bearing's rear end has cup jointed insulating cover, and the front end of shell body passes through the front shroud and seals, and the rear end of shell body passes through the back shroud and seals, be provided with five radial strut that are circumference array distribution for the center in the shell body beyond the casing centre of a circle, supply oil pipe to extend to in shell body and the inner tube after running through one of them radial strut, arrange oil pipe and feed through with the inner tube after running through another one radial strut.
In above-mentioned technical scheme, when the turbine shaft bore the thermal expansion, because turbine bearing installs in turbine bearing support gasket, after turbine bearing is heated, because turbine bearing support gasket has certain elasticity, the turbine bearing after the permission is heated has certain thermal expansion, can alleviate the relative extrusion of turbine bearing and bearing box butt joint department, and then improves turbine bearing's life and transmission efficiency. The oil supply pipe is used for injecting lubricating oil into the inner cylinder and can be discharged through the oil discharge pipe.
Preferably, the five radial struts are wound with insulating braided ropes on the surfaces thereof, and the insulating braided ropes are wound around the radial struts to prevent external heat from being input to the outer casing.
Preferably, the outer casing is provided with a turbine exhaust sleeve to remove gas that may be generated during high speed rotation and thermal expansion.
Preferably, the exhaust pipe is arranged on the oil discharge pipe, so that the exhaust in the inner cylinder is convenient to maintain.
The utility model provides a pair of turbine generator bearing box's improvement structure's beneficial effect lies in: this turbine generator bearing box's improvement structure is through installing turbine bearing in turbine bearing supporting washer, and after turbine bearing is heated, because turbine bearing supporting washer has certain elasticity, the turbine bearing after the permission is heated has certain thermal expansion, can alleviate the relative extrusion of turbine bearing and bearing box butt joint department, and then improves turbine bearing's life and transmission efficiency.
Drawings
Fig. 1 is a transverse sectional view of the present invention.
Fig. 2 is a longitudinal sectional view of the present invention.
In the figure: 1. an oil supply pipe; 2. a turbine bearing; 3. a radial strut; 4. a turbine bearing support washer; 5. an exhaust pipe; 6. an oil discharge pipe; 7. an oil seal ring; 8. a shaft seal ring; 9. a turbine exhaust sleeve; 10. an inner barrel; 11. insulating braided ropes; 12. an insulating sleeve; 13. a back cover plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art without any inventive step are within the scope of the present invention.
Example (b): an improved structure of a bearing box of a turbine generator.
Referring to fig. 1 and 2, an improved structure of a bearing housing of a turbine generator comprises an outer housing, an inner cylinder 10 is installed in the outer housing, a turbine bearing support gasket 4 is arranged in the inner cylinder 10, the turbine bearing support gasket 4 is made of polytetrafluoroethylene material and has certain elasticity, a turbine bearing 2 is installed in the turbine bearing support gasket 4, the front end of the butt joint of the turbine bearing 2 and the turbine bearing support gasket 4 is sealed by an oil seal ring 7 and a shaft seal ring 8, the rear end of the turbine bearing 2 is sleeved with an insulation sleeve 12, the front end of the outer housing is sealed by a front cover plate, the rear end of the outer housing is sealed by a rear cover plate 13, five radial struts 3 which are circumferentially distributed in an array manner with the center of the outer housing as the center are arranged on the outer housing, insulation braided ropes 11 are wound on the surfaces of the five radial struts 3, and the insulation braided ropes 11 are wound on the radial struts 3 to prevent external heat from being input to the, the oil supply pipe 1 penetrates through one of the radial struts 3 and then extends into the outer shell and the inner cylinder 10, the oil discharge pipe 6 penetrates through the other radial strut 3 and then is communicated with the inner cylinder 10, the oil supply pipe 1 is used for injecting lubricating oil into the inner cylinder 10 and can be discharged through the oil discharge pipe 6, and the oil discharge pipe 6 is provided with the exhaust pipe 5, so that the exhaust in the inner cylinder 10 is convenient to maintain. A turbine exhaust sleeve 9 is also provided on the outer casing to remove gases that may be generated during high speed rotation and thermal expansion.
This turbine generator bearing box's improvement structure is through installing turbine bearing 2 in turbine bearing support gasket 4, is heated the back when turbine bearing 2, because turbine bearing support gasket 4 has certain elasticity, allows turbine bearing 2 after being heated to have certain thermal expansion, can alleviate the relative extrusion of turbine bearing 2 and bearing box butt joint department, and then improves turbine bearing 2's life and transmission efficiency.
The above description is a preferred embodiment of the present invention, but the present invention should not be limited to the disclosure of the embodiment and the accompanying drawings, and therefore, all equivalents and modifications that can be accomplished without departing from the spirit of the present invention are within the protection scope of the present invention.
Claims (4)
1. The utility model provides an improvement structure of turbine generator bearing box, includes the shell body, install the inner tube in the shell body, its characterized in that: be provided with turbine bearing support gasket in the inner tube, turbine bearing installs in the turbine bearing support gasket to the front end of turbine bearing and turbine bearing support gasket butt joint department passes through oil seal ring and shaft seal circle to be sealed, and the rear end of turbine bearing has cup jointed insulating cover, and the front end of shell body passes through the front shroud to be sealed, and the rear end of shell body passes through the back shroud to be sealed, be provided with five radial strut that are circumference array distribution for the center with the shell body centre of a circle on the shell body, supply oil pipe to run through in extending to shell body and inner tube behind one of them radial strut, arrange oil pipe and run through with the inner tube intercommunication behind the other one radial strut.
2. The improved structure of a bearing housing of a turbine generator as claimed in claim 1, wherein: and the surfaces of the five radial struts are wound with insulating braided ropes.
3. The improved structure of a bearing housing of a turbine generator as claimed in claim 1, wherein: and a turbine exhaust sleeve is arranged on the outer shell.
4. The improved structure of a bearing housing of a turbine generator as claimed in claim 1, wherein: an exhaust pipe is arranged on the oil discharge pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922236803.8U CN211116151U (en) | 2019-12-13 | 2019-12-13 | Improved structure of turbine generator bearing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922236803.8U CN211116151U (en) | 2019-12-13 | 2019-12-13 | Improved structure of turbine generator bearing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211116151U true CN211116151U (en) | 2020-07-28 |
Family
ID=71691003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922236803.8U Active CN211116151U (en) | 2019-12-13 | 2019-12-13 | Improved structure of turbine generator bearing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211116151U (en) |
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2019
- 2019-12-13 CN CN201922236803.8U patent/CN211116151U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Lin Xiaoming Inventor after: Xu Feng Inventor after: Sun Xiaodong Inventor before: Huang Miao Inventor before: Zhu Pengchao Inventor before: Chen Ruizhu |
|
| CB03 | Change of inventor or designer information |