CN103267064A - Steam turbine bearing tiltable tile and installation process - Google Patents
Steam turbine bearing tiltable tile and installation process Download PDFInfo
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- CN103267064A CN103267064A CN2013101805094A CN201310180509A CN103267064A CN 103267064 A CN103267064 A CN 103267064A CN 2013101805094 A CN2013101805094 A CN 2013101805094A CN 201310180509 A CN201310180509 A CN 201310180509A CN 103267064 A CN103267064 A CN 103267064A
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- tile
- watt
- tile fragment
- bearing
- steam turbine
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Abstract
The invention relates to a steam turbine in the field of electric power energy, and in particular relates to a steam turbine bearing tiltable tile and an installation process. According to the technical scheme provided by the invention, the tiltable tile is averagely divided into four tile pieces in a circumferential direction, the circumference radian of each tile piece is 75 degrees, and a couple of adjacent tiltable tile pieces are load-bearing tile pieces. The tiltable tile provided by the invention has the beneficial effects that each tile piece can swing freely, a best oil wedge can be formed under any condition, the high-speed stability is very good, oil-film oscillation is unlikely to happen, and the positions of the tile pieces can be automatically adjusted so as to form the best lubrication oil wedge; and the tile is safe, reliable and free of jam, the oscillation risk cannot increase, the temperature of the tile is in a safe range, and the tile is capable of running without a fault for a long time.
Description
Technical field:
The present invention relates to the steam turbine in the electric power energy field, relate to specifically that steam turbine bearing can incline watt and mounting process.
Background technique:
In the electric power energy field, steam turbine exists the bearing coal temperature problem that exceeds standard in service, unit is in operation because bearing shell tilts to cause bearing shell coal and the unsettled phenomenon of turbine shaft surface of contact vertically, thereby causes the specific pressure instability, causes watt temperature unstable.
Summary of the invention
The objective of the invention is the problem that exists at prior art, provide a kind of safe and reliable, tile fragment can free activity, no bite, can not increase and vibrate risk, Wa Wen in safety range and can stand that the trouble-free steam turbine bearing of long-time running can incline watt and mounting process.
Technological scheme: the described watt peace of inclining circumferentially is equally divided into four tile fragments, and the circumference radian of every tile fragment is 75 degree, but wherein adjacent a pair of incline watt be load bearing tile; Its mounting process is: one: a pair of load-bearing can be inclined watt fulcrum on positions of each 45 degree about the circumferencial direction bottom, axially watt the 0.2mm place that makes progress, central position; Two: the garden diameter is 361.5mm in the coal that tile fragment contacts with turbine shaft, and outer garden diameter is 490mm, and parallels garden arc dia is 460mm, corresponding parallels arc diameter 500mm; Three: the tile fragment bottom adopts ball to contact with a watt pillow contact position, and tile fragment bottom parallels adopts tool steel, and the bottom watt corresponding parallels of pillow adopts Bearing Steel; Four: the hangers of tile fragment is as suspension, suspension is to adopt both sides circumference and axially locating, and circumferencial direction limits the activity space of positive and negative 3mm, the activity space of the positive and negative 2mm of axial restraint, tile fragment allows the swing space of 2.5mm up and down with the circle swing maximum, tile fragment rotates the swing that allows 1.5 degree.
Have the oil-feed contract in watt oil-feed side of can inclining, oil-feed contract angle is 1.5 degree.
Beneficial effect:Be that each piece watt all can freely swing, under any circumstance can both form best oil film wedge, high stability is very good, is difficult for oil whip takes place, and regulates the tile fragment position automatically, forms best lubrication wedge, safety; Reliably; No bite; Can not increase the vibration risk; Wa Wen should be in safety range; Can stand the long-time running fault-free.
Description of drawings: accompanying drawing 1 is the plan view of present embodiment, and accompanying drawing 2 is right elevations of accompanying drawing 1, and accompanying drawing 3 is left views of accompanying drawing 1, and 3 is macro-axis among the figure.
Embodiment
With reference to accompanying drawing 1-3, the described watt peace of inclining of present embodiment circumferentially is equally divided into four tile fragments 1, and the circumference radian of every tile fragment 1 is 75 degree, but wherein adjacent a pair of incline watt be load bearing tile 2; Its mounting process is: one: a pair of load-bearing can be inclined watt 2 fulcrums on positions of each 45 degree about the circumferencial direction bottom, axially watt the 0.2mm place that makes progress, central position; Two: the garden diameter is 361.5mm in the coal that tile fragment contacts with turbine shaft, and outer garden diameter is 490mm, and parallels garden arc dia is 460mm, and corresponding parallels arc diameter 500mm is to guarantee specific contact pressure rationally and to guarantee that oil-feed is unimpeded; Three: the tile fragment bottom adopts ball to contact with a watt pillow contact position, tile fragment bottom parallels adopts tool steel, the bottom watt corresponding parallels of pillow adopts Bearing Steel, prevent the material one consistent interlock that causes of hardness of making peace, hardness is respectively the cooperation of HRC40-50 and HRC55-62, namely guaranteed reasonably hardness and wear resistance, guaranteed can not produce between the material engaged again; Four: the hangers of tile fragment is as suspension, suspension is to adopt both sides circumference and axially locating, circumferencial direction limits the activity space of positive and negative 3mm, the activity space of the positive and negative 2mm of axial restraint, tile fragment allows the swing space of 2.5mm up and down with the circle swing maximum, tile fragment rotates the swing that allows 1.5 degree, allows certain activity in this three dimensional space, and surpassing this scope will be stuck.Have the oil-feed contract for oil-feed is unimpeded in watt oil-feed side of can inclining, oil-feed contract angle is 1.5 degree, further guarantees when specific pressure improves within the specific limits, can not cause the rising of watt temperature.
A among the figure, B, C, D, E, F, G, H point are respectively the oil catch of each position and the gap width between the macro-axis because tile fragment is movable in watt pillow, so the right value of measuring be both sides value sum in the sphere of activities divided by two mean value, see the following form:
| A | B | C | D | E | F | G | H |
| 85 | 104 | 40 | 52 | 75 | 55 | 85 | 55 |
That is: oil catch gap in bottom is: (A+B)/and 2=(85+104)/2=94.5mm
Oil catch gap, top is: (D+C)/and 2=(52+40)/2=46mm
Oil catch gap, both sides: from steam turbine to the generating pusher side:
The gap, left side: (G+F)/2=(85+55)/2=70mm
The gap, right side: (E+H)/2=(75+55)/2=65mm
Define in addition from the steamer pusher side and see that the bearing shell right side claims #1 watt for following watt; The left side claims #2 watt for following watt, and each watt survey data is as follows: the mm of unit
| The tile fragment title | The tile fragment body thickness | The spherical parallels thickness of tile fragment | Tile fragment adjustment thickness of scale | The tile fragment general thickness |
| The #1 tile fragment | 18.92 | 2.01 | 49.86 | 70.79 |
| The #2 tile fragment | 17.92 | 2.61 | 50.29 | 70.82 |
Shang watt bottom clearance: left side 0.53mm; Right side 0.54mm.
Claims (2)
1. steam turbine bearing can incline watt and mounting process, and it is characterized in that: the described watt peace of inclining circumferentially is equally divided into four tile fragments, and the circumference radian of every tile fragment is 75 degree, but wherein adjacent a pair of incline watt be load bearing tile; Its mounting process is: one: a pair of load-bearing can be inclined watt fulcrum on positions of each 45 degree about the circumferencial direction bottom, axially watt the 0.2mm place that makes progress, central position; Two: the garden diameter is 361.5mm in the coal that tile fragment contacts with turbine shaft, and outer garden diameter is 490mm, and parallels garden arc dia is 460mm, corresponding parallels arc diameter 500mm; Three: the tile fragment bottom adopts ball to contact with a watt pillow contact position, and tile fragment bottom parallels adopts tool steel, and the bottom watt corresponding parallels of pillow adopts Bearing Steel; Four: the hangers of tile fragment is as suspension, suspension is to adopt both sides circumference and axially locating, and circumferencial direction limits the activity space of positive and negative 3mm, the activity space of the positive and negative 2mm of axial restraint, tile fragment allows the swing space of 2.5mm up and down with the circle swing maximum, tile fragment rotates the swing that allows 1.5 degree.
2. steam turbine bearing according to claim 1 can incline watt and mounting process, it is characterized in that: have the oil-feed contract in watt oil-feed side of can inclining, oil-feed contract angle is 1.5 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310180509.4A CN103267064B (en) | 2013-05-16 | 2013-05-16 | The mounting process of steam turbine bearing tilting bush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310180509.4A CN103267064B (en) | 2013-05-16 | 2013-05-16 | The mounting process of steam turbine bearing tilting bush |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103267064A true CN103267064A (en) | 2013-08-28 |
| CN103267064B CN103267064B (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310180509.4A Expired - Fee Related CN103267064B (en) | 2013-05-16 | 2013-05-16 | The mounting process of steam turbine bearing tilting bush |
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| CN (1) | CN103267064B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110631839A (en) * | 2019-09-30 | 2019-12-31 | 大唐郓城发电有限公司 | Method for judging shafting stability of single-shaft 5-cylinder 4-exhaust steam turbine set |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52137549A (en) * | 1976-05-12 | 1977-11-17 | Mitsubishi Heavy Ind Ltd | Inclined-moving pad type journal bearing |
| JPS5830523A (en) * | 1981-08-18 | 1983-02-23 | Ebara Corp | Inclined pad type vibration suppressing bearing |
| JPH07151139A (en) * | 1993-11-30 | 1995-06-13 | Mitsubishi Heavy Ind Ltd | Dynamic pressure bearing |
| CN101021233A (en) * | 2006-11-02 | 2007-08-22 | 湘潭市岳塘区兴盛液压机械配件加工厂 | Processing technology for deformed tiltable bush |
| CN201661606U (en) * | 2010-04-13 | 2010-12-01 | 上海申科滑动轴承有限公司 | Novel radial tilting-pad sliding bearing oil-feeding structure |
-
2013
- 2013-05-16 CN CN201310180509.4A patent/CN103267064B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52137549A (en) * | 1976-05-12 | 1977-11-17 | Mitsubishi Heavy Ind Ltd | Inclined-moving pad type journal bearing |
| JPS5830523A (en) * | 1981-08-18 | 1983-02-23 | Ebara Corp | Inclined pad type vibration suppressing bearing |
| JPH07151139A (en) * | 1993-11-30 | 1995-06-13 | Mitsubishi Heavy Ind Ltd | Dynamic pressure bearing |
| CN101021233A (en) * | 2006-11-02 | 2007-08-22 | 湘潭市岳塘区兴盛液压机械配件加工厂 | Processing technology for deformed tiltable bush |
| CN201661606U (en) * | 2010-04-13 | 2010-12-01 | 上海申科滑动轴承有限公司 | Novel radial tilting-pad sliding bearing oil-feeding structure |
Non-Patent Citations (3)
| Title |
|---|
| 张麦秋等: "《化工机械制造安装修理技术》", 31 July 2007, article "可倾瓦式径向滑动轴承的装配", pages: 161-163 * |
| 王先奎: "《机械加工工艺手册》", 30 June 2008, article "可倾瓦扇形轴承装配", pages: 61-63 * |
| 谭召生: "可倾瓦轴承的加工与装配", 《汽轮机技术》, vol. 46, no. 3, 30 June 2004 (2004-06-30) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110631839A (en) * | 2019-09-30 | 2019-12-31 | 大唐郓城发电有限公司 | Method for judging shafting stability of single-shaft 5-cylinder 4-exhaust steam turbine set |
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| Publication number | Publication date |
|---|---|
| CN103267064B (en) | 2016-06-29 |
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Granted publication date: 20160629 Termination date: 20180516 |
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