CN205663463U - high back pressure steam turbine precooling tilting pad bearing arrangement - Google Patents
high back pressure steam turbine precooling tilting pad bearing arrangement Download PDFInfo
- Publication number
- CN205663463U CN205663463U CN201620575743.6U CN201620575743U CN205663463U CN 205663463 U CN205663463 U CN 205663463U CN 201620575743 U CN201620575743 U CN 201620575743U CN 205663463 U CN205663463 U CN 205663463U
- Authority
- CN
- China
- Prior art keywords
- tilting
- precooling
- back pressure
- pad bearing
- high back
- 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.)
- Withdrawn - After Issue
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- Turbine Rotor Nozzle Sealing (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The utility model belongs to the technical field of energy power equipment, concretely relates to high back pressure steam turbine precooling tilting pad bearing arrangement, including precooling tilting pad bearing casing, precooling tilting pad bearing tile fragment, screw, bearing frame, oil scraper ring and high back pressure turbine rotor, high back pressure turbine rotor installs on precooling tilting pad bearing tile fragment, and precooling tilting pad bearing tile fragment is arranged in the precooling tilting pad bearing case that is equipped with the horizontal flange internally through lug and screw, and precooling tilting pad bearing casing is fixed in on the bearing frame, the oil inlet of lubricating oil through the bearing frame flows into and is equipped with annular oil groove between precooling tilting pad bearing casing and the bearing frame, then divides into two the tunnel, is used for all the way taking away spin friction and the heat that produces, another way is used for taking away because high back pressure turbine rotor's impeller and vapor seal boss are in the high -temperature region and transmit the heat for the axle journal. The utility model discloses a reasonable in design, energy -efficient, safe and reliable avoids the axle bush high temperature.
Description
Technical field:
This utility model relates to and belongs to energy source and power equipment technical field, and being specifically related to a kind of high back pressure steam turbine precooling can
Incline pad bearing structure.
Background technology:
High back pressure steam turbine refer to initial steam pressure between 8Mpa～12MPa, exhaust steam pressure is in the back pressure of 4MPa～7MPa
Steam turbine, the steam (standard configuration parameter of boiler) of high parameter is become middle parameter steam, is meeting work by high back pressure steam turbine
Skill equipment, with on the basis of vapour demand, drives the equipment such as various pump, blower fan, compressor and electromotor, substitutes desuperheat simultaneously and subtracts
Depressor, improves energy utilization rate.High back pressure steam turbine initial steam pressure is between 8～12MPa, and throttle (steam) temperature is typically on 535 DEG C of left sides
The right side, and exhaust steam pressure is 4～7MPa, exhaust temperature correspondingly is typically more than 400 DEG C, and this allows for whole impeller of rotor
The most all the time the duty of high temperature it is in.Owing to the factors such as critical speed, structure and cost limit, rotor is difficult to long,
And hold the pressure reduction that packing both sides are born relatively greatly, steam seal ring is arranged more so that end packing is less with the spacing of radial journal bearing.
Although it addition, end packing arranges more, but pressure drastically reduces in throttling process, variations in temperature is the least, say, that whole
Rotor in individual end packing is still in high-temperature region.This allows for rotor and cannot be adequately cooled, and Gu Zhouchengchu passes due to heat
The heat led and bring is more, and even more than rotor rotates and the frictional heat that produces, is likely to result in bearing bush temperature too high, gives height
Back pressure turbine safe operation brings hidden danger.
Utility model content:
In place of this utility model makes up and improves above-mentioned the deficiencies in the prior art, it is provided that a kind of reasonable in design,
It is energy-efficient, safe and reliable it can be avoided that the too high a kind of high back pressure steam turbine of bearing bush temperature precools tilting-pad bearing structure,
Can promote on a large scale and use.
The technical solution adopted in the utility model is: a kind of high back pressure steam turbine precools tilting-pad bearing structure, this knot
Structure includes precooling tilting-pad bearing housing, precooling tilting-type tile bearing broken tiles, screw, bearing block, oil scraper ring and high back pressure vapour
Turbine wheel, high back pressure turbine rotor is installed on precooling tilting-type tile bearing broken tiles, precools tilting-type tile bearing broken tiles and leads to
Cross lug and screw arrangement in the precooling tilting-pad bearing housing being provided with horizontal flange, precool tilting-pad bearing housing
It is fixed on bearing block.
Being provided with annular oil groove between described precooling tilting-pad bearing housing and bearing block, lubricating oil is by bearing block
Oil-in flows into precool and is provided with annular oil groove between tilting-pad bearing housing and bearing block, is then divided into two-way, and a road flows into
Precool in the gap between tilting-type tile bearing broken tiles and high back pressure turbine rotor, the heat produced for taking away spin friction
Amount；The oilhole precooled in tilting-pad bearing housing of separately leading up to flows between cooling tilting-pad bearing housing and oil scraper ring
On high back pressure turbine rotor, it is used for taking away owing to impeller and the packing boss of high back pressure turbine rotor are in high-temperature region and pass
Pass the heat of axle journal, and flow into bearing block bottom, eventually pass back to petrol station.
The beneficial effects of the utility model: reasonable in design, energy-efficient, safe and reliable, it is possible to avoid bearing bush temperature
Too high, it is easy to promote on a large scale and use.By lubricating oil will be due to high back pressure impeller of steam turbine rotor and packing boss at
The heat passing to bearing in high-temperature region is taken away, it is achieved that the preliminary cooling to high back pressure turbine rotor, it is to avoid bearing shell temperature
Spend height, improve the security reliability of unit.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention:
With reference to Fig. 1, a kind of high back pressure steam turbine precools tilting-pad bearing structure, and this structure includes precooling tilting bush axle
Hold housing 1, precool tilting-type tile bearing broken tiles 2, screw 3, bearing block 4, oil scraper ring 5 and high back pressure turbine rotor 6, high back pressure
Turbine rotor 6 is installed on precooling tilting-type tile bearing broken tiles 2, precools tilting-type tile bearing broken tiles 2 by lug and screw 3
It is arranged in the precooling tilting-pad bearing housing 1 being provided with horizontal flange, precools tilting-pad bearing housing 1 and be fixed on bearing
On seat 4；Precool and be provided with annular oil groove between tilting-pad bearing housing 1 and bearing block 4, the lubricating oil oil-feed by bearing block 4
Mouth flows into precool and is provided with annular oil groove between tilting-pad bearing housing 1 and bearing block 4, is then divided into two-way, and a road flows into pre-
In gap between cooling tilting-type tile bearing broken tiles 2 and high back pressure turbine rotor 6, the heat produced for taking away spin friction
Amount；The oilhole precooled in tilting-pad bearing housing 1 of separately leading up to flow into cooling tilting-pad bearing housing 1 and oil scraper ring 5 it
Between high back pressure turbine rotor 6 on, be used for take away owing to impeller and the packing boss of high back pressure turbine rotor 6 are in high temperature
District and pass to the heat of axle journal, and flow into bearing block 4 bottom, eventually pass back to petrol station.
By lubricating oil, impeller and the packing boss due to high back pressure turbine rotor 6 is in high-temperature region and passes to axle
The heat held is taken away, it is achieved that the preliminary cooling to high back pressure turbine rotor 6, it is to avoid bearing bush temperature is too high, improves unit
Security reliability.Reasonable in design of the present utility model, energy-efficient, safe and reliable, it is possible to avoid bearing bush temperature too high,
It is prone to promote on a large scale and use.
Claims (2)
1. a high back pressure steam turbine precools tilting-pad bearing structure, it is characterised in that: this structure includes precooling tilting bush
Bear box (1), precooling tilting-type tile bearing broken tiles (2), screw (3), bearing block (4), oil scraper ring (5) and high back pressure steam turbine
Rotor (6), high back pressure turbine rotor (6) is installed in precooling tilting-type tile bearing broken tiles (2), precools tilting-pad bearing watt
Block (2) is arranged in by lug and screw (3) in precooling tilting-pad bearing housing (1) being provided with horizontal flange, precools
Tilting-pad bearing housing (1) is fixed on bearing block (4).
A kind of high back pressure steam turbine the most according to claim 1 precools tilting-pad bearing structure, it is characterised in that: described
Precooling tilting-pad bearing housing (1) and bearing block (4) between be provided with annular oil groove, lubricating oil is by the entering of bearing block (4)
Hydraulic fluid port flows into precool and is provided with annular oil groove between tilting-pad bearing housing (1) and bearing block (4), is then divided into two-way, a road
Flow in the gap precooled between tilting-type tile bearing broken tiles (2) and high back pressure turbine rotor (6), be used for taking away spin friction
And the heat produced；The oilhole precooled in tilting-pad bearing housing (1) of separately leading up to flows into cooling tilting-pad bearing housing
(1), on the high back pressure turbine rotor (6) and between oil scraper ring (5), it is used for taking away due to the leaf of high back pressure turbine rotor (6)
Wheel and packing boss are in high-temperature region and pass to the heat of axle journal, and flow into bearing block (4) bottom, eventually pass back to petrol station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620575743.6U CN205663463U (en) | 2016-06-14 | 2016-06-14 | high back pressure steam turbine precooling tilting pad bearing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620575743.6U CN205663463U (en) | 2016-06-14 | 2016-06-14 | high back pressure steam turbine precooling tilting pad bearing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205663463U true CN205663463U (en) | 2016-10-26 |
Family
ID=57155255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620575743.6U Withdrawn - After Issue CN205663463U (en) | 2016-06-14 | 2016-06-14 | high back pressure steam turbine precooling tilting pad bearing arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205663463U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109937287A (en) * | 2016-11-04 | 2019-06-25 | 索拉透平公司 | Vibrating part for gas-turbine unit |
-
2016
- 2016-06-14 CN CN201620575743.6U patent/CN205663463U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109937287A (en) * | 2016-11-04 | 2019-06-25 | 索拉透平公司 | Vibrating part for gas-turbine unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161026 Effective date of abandoning: 20170606 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20161026 Effective date of abandoning: 20170606 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |