CN110159662A - A kind of movable type nuclear steam turbine thrust bearing pressure-equalizing device - Google Patents
A kind of movable type nuclear steam turbine thrust bearing pressure-equalizing device Download PDFInfo
- Publication number
- CN110159662A CN110159662A CN201910557463.0A CN201910557463A CN110159662A CN 110159662 A CN110159662 A CN 110159662A CN 201910557463 A CN201910557463 A CN 201910557463A CN 110159662 A CN110159662 A CN 110159662A
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- Prior art keywords
- thrust
- bearing
- briquetting
- steam turbine
- housing
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- 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.)
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Links
- 238000000034 method Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/02—Rigid support of bearing units; Housings, e.g. caps, covers in the case of sliding-contact bearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
A kind of movable type nuclear steam turbine thrust bearing pressure-equalizing device, the present invention relates to a kind of mobile nuclear steam turbine thrust bearing pressure-equalizing devices, the present invention is when solving the steam turbine run-off the straight of existing floating nuclear power plant and waving, need to bear axial thrust caused by turbine rotor and generator amature, it is excessively high that the variation of axial thrust easily causes bearing bush temperature, burning accident can seriously be caused, the problem of bringing hidden danger to the security reliability of steam turbine, it includes bearing body, thrust disc, two bearing holder (housing, cover)s, two bearing upper shields, two oil scraper rings, multiple thrust pads, multiple thrust pad supports, multiple equal briquetting A, multiple blocks and multiple equal briquetting B, thrust disc is sleeved in shaft and is wholely set with shaft, two bearing holder (housing, cover)s are separately positioned on the two sides of thrust disc, multiple thrust pads are circumferentially disposed at thrust disc Two sides, the present invention are used for mobile nuclear steam turbine field.
Description
Technical field
The present invention relates to a kind of mobile nuclear steam turbine thrust bearing pressure-equalizing devices, and in particular to a kind of movable type nuclear power
Steam Turbine Thrust Bearing pressure-equalizing device.
Background technique
Floating nuclear power plant (also known as ocean nuclear power platform) is marine movable small nuclear power station, is small-sized nuclear reaction
The combination of heap and Marine engineering can provide safe and effective energy resource supply for marine petroleum exploitation and remote island, can also
For large power ship and field of seawater desalination.
Steam Turbine Thrust Bearing subjects axial thrust, axial when steam turbine load and steam parameter change
Thrust also changes therewith, and especially ocean nuclear power platform steam turbine is influenced by marine environment, run-off the straight and when waving,
It needs to bear to add axial thrust due to caused by turbine rotor and generator amature weight, and the axial thrust changes width
Degree is big, frequency is high.So that each tile fragment ratio of thrust bearing is pressed in certain state, there are maximum for this variation of axial thrust, are easy
Cause bearing bush temperature excessively high, can seriously cause burning accident, brings hidden danger to the security reliability of steam turbine.
Summary of the invention
The present invention is when solving the steam turbine run-off the straight of existing floating nuclear power plant and waving, to need to bear steam turbine
Axial thrust caused by rotor and generator amature, it is excessively high that the variation of axial thrust easily causes bearing bush temperature, can seriously cause
Burning accident, the problem of bringing hidden danger to the security reliability of steam turbine, and then a kind of mobile nuclear steam turbine thrust is provided
Bearing pressure-equalizing device.
The present invention in order to solve the above problem and the technical solution adopted is that:
Including bearing body, thrust disc, two bearing holder (housing, cover)s, two bearing upper shields, two oil scraper rings, multiple thrust pads, more
A thrust pad support, multiple equal briquetting A, multiple blocks and multiple equal briquetting B, thrust disc be sleeved in shaft and with shaft one
Body setting, two bearing holder (housing, cover)s are separately positioned on the two sides of thrust disc, and multiple thrust pads are circumferentially disposed at the two sides of thrust disc,
And the thrust pad of the every side of thrust disc is uniformly arranged between thrust disc and bearing holder (housing, cover), on each bearing holder (housing, cover) bottom plate circumferentially arranged with
Multiple thrust pad supports, circumferentially arranged with multiple equal briquetting A and multiple equal briquetting B on each bearing holder (housing, cover), and each bearing holder (housing, cover)
On multiple equal briquetting A and multiple equal briquetting B be staggered one by one setting, one end of each thrust pad support is arranged at one
On thrust pad, the other end of each thrust pad support is withstood on an equal briquetting A, opposite with bottom plate on each bearing holder (housing, cover)
Opening is equipped with a bearing upper shield, and each bearing holder (housing, cover), which covers, to be evenly distributed equipped with multiple blocks, and one end of each block is pushed up
On equal briquetting B, thrust disc and two bearing holder (housing, cover)s are installed in bearing body, and the other end of each block withstands on the interior of bearing body
On wall, the outside of two bearing holder (housing, cover)s is arranged in two oil scraper rings, and the inner ring of each oil scraper ring is arranged in shaft, each oil scraper ring
Outside be separately positioned on the side wall of a bearing body.
Beneficial effects of the present invention:
1, when steam turbine is since steam parameter, load etc. change or by the inclination of marine environment and due to waving etc., draw
Axial thrust size and Orientation is played when changing, will lead to the unbalance stress between each thrust pad and inside thrust pad
When.The biggish thrust pad of stress, will be mobile away from thrust disc, is applied on equal briquetting A by thrust pad support 4, then
It is applied on equal briquetting B by surface of revolution, and is occurred by the equal briquetting A that the lever principle of self-aligning spherical support closes on two sides
The movement of opposite direction, then drive and close on thrust pad to thrust disc movement, increase the stress for closing on thrust pad, to realize
The producing balanced forces of each thrust pad, and then reach the purpose of the present invention.
2, the present invention utilizes the lever principle of pressure-equalizing device, so that each thrust pad stress being uniformly distributed circumferentially is equal
Weighing apparatus, avoid individual thrust pads because stress is excessive cause watt temperature excessively high the problems such as, improve unit safety reliability.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention.
Fig. 2 be the multiple thrust pads 3 in 10 side of thrust disc of the present invention, multiple thrust pad supports 4, multiple equal briquetting A5,
Multiple blocks 8 and multiple equal briquetting B9 pitch circle expanded views.
Specific embodiment
Specific embodiment 1: illustrating present embodiment, a kind of mobile nuclear power described in present embodiment in conjunction with Fig. 1-Fig. 2
Steam Turbine Thrust Bearing pressure-equalizing device, it includes bearing body 1, the bearing holder (housing, cover) 2, two bearing upper shield 6, two of thrust disc 10, two
Oil scraper ring 7, multiple thrust pads 3, multiple thrust pad supports 4, multiple equal briquetting A5, multiple blocks 8 and multiple equal briquetting B9,
Thrust disc 10 is sleeved in shaft and is wholely set with shaft, and two bearing holder (housing, cover)s 2 are separately positioned on the two sides of thrust disc 10, multiple
Thrust pad 3 is circumferentially disposed at the two sides of thrust disc 10, and the thrust pad 3 of the every side of thrust disc 10 is uniformly arranged in thrust disc
Between 10 and bearing holder (housing, cover) 2, circumferentially arranged with multiple thrust pad supports 4 on each 2 bottom plate of bearing holder (housing, cover), edge on each bearing holder (housing, cover) 2
Multiple equal briquetting A5 and multiple equal briquetting B9 are circumferentially with, and multiple equal briquetting A5 and multiple equal briquettings on each bearing holder (housing, cover) 2
B9 is staggered setting one by one, and one end of each thrust pad support 4 is arranged on a thrust pad 3, each thrust pad
The other end of support 4 is withstood on an equal briquetting A5, and the opening opposite with bottom plate is equipped with a bearing holder (housing, cover) on each bearing holder (housing, cover) 2
Lid 6 is evenly distributed equipped with multiple blocks 8 on each bearing upper shield 6, and one end of each block 8 is withstood on equal briquetting B9, thrust
Disk 10 and two bearing holder (housing, cover)s 2 are installed in bearing body 1, and the other end of each block 8 is withstood on the inner wall of bearing body 1, and two
The outside of two bearing holder (housing, cover)s 2 is arranged in oil scraper ring 7, and the inner ring of each oil scraper ring 7 is arranged in shaft, outside each oil scraper ring 7
Side is separately positioned on the side wall of a bearing body 1.
The number of equal briquetting A5 is equal with the number of thrust pad support 4, block 8 and briquetting B9 in present embodiment,
The number of equal briquetting A5 is 12,14 or 16.
Specific embodiment 2: illustrating present embodiment, a kind of mobile core described in present embodiment in conjunction with Fig. 1 and Fig. 2
Electric Steam Turbine Thrust Bearing pressure-equalizing device, equal briquetting A5 are ' T ' shape convex block, and the center of one side of bottom plate of ' T ' shape convex block adds
Work has round bump, another side of the bottom plate of ' T ' shape convex block is circumferentially machined with protrusion by the periphery of proximal wall, raised
Cross section is arc, and other methods are same as the specific embodiment one.
Specific embodiment 3: illustrating present embodiment, a kind of mobile core described in present embodiment in conjunction with Fig. 1 and Fig. 2
Electric Steam Turbine Thrust Bearing pressure-equalizing device, equal briquetting A5 and equal briquetting B9 structure snd size size are all the same, other methods and tool
Body embodiment two is identical.
Specific embodiment 4: illustrating present embodiment, a kind of mobile core described in present embodiment in conjunction with Fig. 1 and Fig. 2
Electric Steam Turbine Thrust Bearing pressure-equalizing device, the equal briquetting A5 in each bearing holder (housing, cover) 2 are arranged between two equal briquetting B9, Mei Gejun
Briquetting B9 is arranged between two equal briquetting A5, and the raised brim of each briquetting A5 bottom plate is respectively and on two equal briquetting B9
Raised brim contact setting.Other methods are the same as the specific implementation mode 3.
Specific embodiment 5: illustrating present embodiment, a kind of mobile core described in present embodiment in conjunction with Fig. 1 and Fig. 2
Electric Steam Turbine Thrust Bearing pressure-equalizing device, thrust pad support 4 are cylindrical body, and the periphery of cylindrical body is machined with circumferential groove,
One end end face of each cylindrical body is arranged on a thrust pad 3, and it is convex that another end face of each cylindrical body is machined with spherical surface
It rises, and the spherical surface hill of cylindrical body is contacted with the round bump of equal briquetting A5.Other methods are same as the specific embodiment one.
Claims (5)
1. a kind of movable type nuclear steam turbine thrust bearing pressure-equalizing device, it is characterised in that: it includes bearing body (1), thrust disc
(10), two bearing holder (housing, cover)s (2), two bearing upper shields (6), two oil scraper rings (7), multiple thrust pads (3), multiple thrust pads
Support (4), multiple equal briquetting A (5), multiple blocks (8) and multiple equal briquetting B (9), thrust disc (10) be sleeved in shaft and with
Shaft is wholely set, and two bearing holder (housing, cover)s (2) are separately positioned on the two sides of thrust disc (10), and multiple thrust pads (3) circumferentially set
The two sides in thrust disc (10) are set, and the thrust pad (3) of thrust disc (10) every side is uniformly arranged in thrust disc (10) and bearing
It covers between (2), circumferentially arranged with multiple thrust pad supports (4) on each bearing holder (housing, cover) (2) bottom plate, edge on each bearing holder (housing, cover) (2)
Multiple equal briquetting A (5) and multiple equal briquetting B (9) are circumferentially with, and multiple equal briquetting A (5) on each bearing holder (housing, cover) (2) and more
A equal briquetting B (9) is staggered setting one by one, and one end of each thrust pad support (4) is arranged in a thrust pad (3)
On, the other end of each thrust pad support (4) is withstood on an equal briquetting A (5), opposite with bottom plate on each bearing holder (housing, cover) (2)
Opening be equipped with a bearing upper shield (6), be evenly distributed equipped with multiple blocks (8), each gear on each bearing upper shield (6)
One end of block (8) is withstood on equal briquetting B (9), and thrust disc (10) and two bearing holder (housing, cover)s (2) are installed in bearing body (1), each
The other end of block (8) is withstood on the inner wall of bearing body (1), and two oil scraper rings (7) are arranged in the outside of two bearing holder (housing, cover)s (2),
The inner ring of each oil scraper ring (7) is arranged in shaft, and a bearing body (1) is separately positioned on the outside of each oil scraper ring (7)
On side wall.
2. a kind of mobile nuclear steam turbine thrust bearing pressure-equalizing device according to claim 1, it is characterised in that: equal briquetting
A (5) is ' T ' shape convex block, and the center of one side of bottom plate of ' T ' shape convex block is machined with round bump, and the bottom plate of ' T ' shape convex block is another
One side is circumferentially machined with protrusion by the periphery of proximal wall, and raised cross section is arc.
3. a kind of mobile nuclear steam turbine thrust bearing pressure-equalizing device according to claim 2, it is characterised in that: equal briquetting
A (5) and equal briquetting B (9) structure snd size size are all the same.
4. a kind of mobile nuclear steam turbine thrust bearing pressure-equalizing device according to claim 3, it is characterised in that: each axis
Equal briquetting A (5) in bearing sleeve (2) is arranged between two equal briquetting B (9), and each briquetting B (9) is arranged in two equal briquetting A
(5) between, and the raised brim of each briquetting A (5) bottom plate contacts with the raised brim on two equal briquetting B (9) set respectively
It sets.
5. a kind of mobile nuclear steam turbine thrust bearing pressure-equalizing device according to claim 1, it is characterised in that: thrust bearing shoe valve
Block support (4) is cylindrical body, and the periphery of cylindrical body is machined with circumferential groove, and one end end face of each cylindrical body is arranged at one
On thrust pad (3), another end face of each cylindrical body is machined with spherical surface hill, and the spherical surface hill of cylindrical body and equal briquetting
The round bump of A (5) contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910557463.0A CN110159662B (en) | 2019-06-25 | 2019-06-25 | Movable type nuclear turbine thrust bearing pressure equalizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910557463.0A CN110159662B (en) | 2019-06-25 | 2019-06-25 | Movable type nuclear turbine thrust bearing pressure equalizing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110159662A true CN110159662A (en) | 2019-08-23 |
| CN110159662B CN110159662B (en) | 2024-01-12 |
Family
ID=67626956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910557463.0A Active CN110159662B (en) | 2019-06-25 | 2019-06-25 | Movable type nuclear turbine thrust bearing pressure equalizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110159662B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05231423A (en) * | 1992-02-18 | 1993-09-07 | Mitsubishi Heavy Ind Ltd | Thrust bearing of tilting pad type |
| JPH1061661A (en) * | 1996-08-16 | 1998-03-06 | Mitsubishi Heavy Ind Ltd | Thrust bearing |
| JP2002310142A (en) * | 2001-04-17 | 2002-10-23 | Mitsubishi Heavy Ind Ltd | Thrust bearing device |
| CN1699772A (en) * | 2005-05-27 | 2005-11-23 | 上海大学 | Intelligent thrust oil film bearing |
| CN201991817U (en) * | 2011-03-29 | 2011-09-28 | 上海电力修造总厂有限公司 | Nuclear power feed pump thrust bearing of self compensating angular deflection and motion |
| CN202579639U (en) * | 2012-05-17 | 2012-12-05 | 王碧霞 | Thrust bearing structure |
| CN104389895A (en) * | 2014-11-29 | 2015-03-04 | 哈尔滨广瀚燃气轮机有限公司 | Double-direction thrust reverse sliding bearing applied to turbine |
| CN105765244A (en) * | 2013-11-13 | 2016-07-13 | 西门子股份公司 | Non symmetrical bi-directional thrust bearing with two active faces. |
| JP2017160966A (en) * | 2016-03-08 | 2017-09-14 | 三菱重工業株式会社 | Tilting pad thrust bearing and rotary machine using the same |
| CN210068771U (en) * | 2019-06-25 | 2020-02-14 | 中国船舶重工集团公司第七0三研究所 | Movable pressure equalizing device for thrust bearing of nuclear turbine |
-
2019
- 2019-06-25 CN CN201910557463.0A patent/CN110159662B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05231423A (en) * | 1992-02-18 | 1993-09-07 | Mitsubishi Heavy Ind Ltd | Thrust bearing of tilting pad type |
| JPH1061661A (en) * | 1996-08-16 | 1998-03-06 | Mitsubishi Heavy Ind Ltd | Thrust bearing |
| JP2002310142A (en) * | 2001-04-17 | 2002-10-23 | Mitsubishi Heavy Ind Ltd | Thrust bearing device |
| CN1699772A (en) * | 2005-05-27 | 2005-11-23 | 上海大学 | Intelligent thrust oil film bearing |
| CN201991817U (en) * | 2011-03-29 | 2011-09-28 | 上海电力修造总厂有限公司 | Nuclear power feed pump thrust bearing of self compensating angular deflection and motion |
| CN202579639U (en) * | 2012-05-17 | 2012-12-05 | 王碧霞 | Thrust bearing structure |
| CN105765244A (en) * | 2013-11-13 | 2016-07-13 | 西门子股份公司 | Non symmetrical bi-directional thrust bearing with two active faces. |
| CN104389895A (en) * | 2014-11-29 | 2015-03-04 | 哈尔滨广瀚燃气轮机有限公司 | Double-direction thrust reverse sliding bearing applied to turbine |
| JP2017160966A (en) * | 2016-03-08 | 2017-09-14 | 三菱重工業株式会社 | Tilting pad thrust bearing and rotary machine using the same |
| CN210068771U (en) * | 2019-06-25 | 2020-02-14 | 中国船舶重工集团公司第七0三研究所 | Movable pressure equalizing device for thrust bearing of nuclear turbine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110159662B (en) | 2024-01-12 |
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