CN102287242A - Adjusting method of turbo-generator set shafting center - Google Patents
Adjusting method of turbo-generator set shafting center Download PDFInfo
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- CN102287242A CN102287242A CN2010102021697A CN201010202169A CN102287242A CN 102287242 A CN102287242 A CN 102287242A CN 2010102021697 A CN2010102021697 A CN 2010102021697A CN 201010202169 A CN201010202169 A CN 201010202169A CN 102287242 A CN102287242 A CN 102287242A
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- outer casing
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Abstract
The invention discloses an adjusting method of a turbo-generator set shafting center. The method comprises the following steps of firstly measuring various rotor center data on the turbo-generator set shafting, putting a low-pressure external upper cylinder in place temporarily, measuring the generator set high-pressure rotor and low-pressure rotor center under the function of the weight of the low-pressure external upper cylinder and recording the measured data, comparing the measured data between the high-pressure rotor and the low-pressure rotor centers before and after putting the low-pressure external upper cylinder in place, when the comparing data is 0.02 mm greater than the data, directly adjusting the two low-pressure rotor bearings and adjusting until the comparing data is less and equal to 0.02 mm; when the comparing data is less than and equal to 0.02 mm, putting the low-pressure external upper cylinder in place formally, and installing a high-pressure external upper cylinder, and adjusting the two high-pressure rotor bearings until the turbo-generator set shafting center meets the process requirement. With the adoption of the invention, the turbo-generator set shafting center can be adjusted more conveniently and fast, the efficiency for adjusting the shafting center can be effectively improved, and the adjusting precision of the shafting center and the maintenance quality of the generator can be increased.
Description
Technical field
The present invention relates to the adjusting method at a kind of steam-electric generating set shafting center.
Background technique
METHOD FOR TURBOGENERATOR SET must be measured and adjust in each major overhaul process each axial center, and axial center comprises the axial center of high pressure rotor and low pressure rotor, low pressure rotor and generator amature, generator amature and exciter rotor.Be provided with seven bearings on the steam-electric generating set shafting altogether, be respectively two high pressure rotor bearings, two low pressure rotor bearings, two generator amature bearings and exciter rotor bearing.
At present in each axial center's adjustment process of Turbo-generator Set, generally the method for Cai Yonging is after treating that the high pressure upper outer casing of unit and low pressure upper outer casing are all formal in place, again to high pressure upper outer casing and low pressure upper outer casing center, low pressure upper outer casing and generator amature center are measured, calculate according to survey data then and definite high pressure rotor and low pressure rotor, low pressure rotor and generator amature, the adjustment scheme of generator amature and exciter rotor, and 30 tons the low pressure upper outer casing of weighing certainly will influence the shaft system of unit center after in place, at this moment, if need to adjust the low pressure rotor bearing by calculating, then formally install owing to the low pressure upper outer casing, need adopt special-purpose suspension rod that the low pressure rotor bearing is split out in the low pressure upper outer casing when adjusting once more, implement the adjustment of low pressure rotor bearing then, adjust the row that finishes again and install and measure corresponding data; The shaft system of unit tradition is adjusted in the operation process, do not considered that low pressure upper outer casing weight wasted time and energy to the adjustment of the influence axial center obviously like this of axial center, need by repeatedly installing, dismantle, measure the axial center that reaches final adjustment, it is extremely low to adjust efficient, and has influenced the repair quality of axial center's adjustment precision and generator.
Summary of the invention
Technical problem to be solved by this invention provides the adjusting method at a kind of steam-electric generating set shafting center, utilize the adjustment operation at the convenient, fast enforcement steam-electric generating set shafting of this method center, effectively improve the efficient that axial center adjusts, improved the repair quality of axial center's adjustment precision and generator.
For solving the problems of the technologies described above, survey data is measured and write down to the adjusting method at steam-electric generating set shafting of the present invention center at first to each rotor center on the steam-electric generating set shafting, then that the low pressure upper outer casing is in place temporarily, under the effect of low pressure upper outer casing weight, once more survey data is measured and write down to Turbo-generator Set high pressure rotor and low pressure rotor center, the survey data that compares low pressure upper outer casing front and back in place high pressure rotor and low pressure rotor center, described comparing data is during greater than 0.02mm, then directly described comparing data is adjusted and be adjusted to two low pressure rotor bearings smaller or equal to 0.02mm, described comparing data is during smaller or equal to 0.02mm, then the formal in place and installation high pressure upper outer casing with the low pressure upper outer casing is adjusted two high pressure rotor bearing to steam-electric generating set shafting centers and is met technological requirement.
Because the adjusting method at steam-electric generating set shafting of the present invention center has adopted technique scheme, i.e. each rotor center data on the measuring recording steam-electric generating set shafting at first, the low pressure upper outer casing is in place temporarily, under the effect of low pressure upper outer casing weight, once more survey data is measured and write down to unit high pressure rotor and low pressure rotor center, the survey data that compares low pressure upper outer casing front and back in place high pressure rotor and low pressure rotor center, comparing data is during greater than 0.02mm, then directly comparing data is adjusted and be adjusted to two low pressure rotor bearings smaller or equal to 0.02mm, comparing data is smaller or equal to 0.02mm, then the formal in place and installation high pressure upper outer casing with the low pressure upper outer casing is adjusted two high pressure rotor bearing to steam-electric generating set shafting centers and is met technological requirement.Utilize the adjustment operation at the convenient, fast enforcement steam-electric generating set shafting of this method center, effectively improved the efficient that axial center adjusts, improved the repair quality of axial center's adjustment precision and generator.
Embodiment
Survey data is measured and write down to the adjusting method at steam-electric generating set shafting of the present invention center at first to each rotor center on the steam-electric generating set shafting, then that the low pressure upper outer casing is in place temporarily, under the effect of low pressure upper outer casing weight, once more survey data is measured and write down to Turbo-generator Set high pressure rotor and low pressure rotor center, the survey data that compares low pressure upper outer casing front and back in place high pressure rotor and low pressure rotor center, described comparing data is during greater than 0.02mm, then directly described comparing data is adjusted and be adjusted to two low pressure rotor bearings smaller or equal to 0.02mm, this moment is because the low pressure upper outer casing is interim in place and the high pressure upper outer casing is not installed, therefore be easy to two low pressure rotor bearings are implemented to adjust and grind, adjust requirement until satisfying; Described comparing data is during smaller or equal to 0.02mm, can not consider the influence of low pressure upper outer casing weight to shaft system of unit this moment, the formal in place and installation high pressure upper outer casing with the low pressure upper outer casing, adjust two high pressure rotor bearing to steam-electric generating set shafting centers and meet technological requirement, because two high pressure rotor bearings are easy to adjust in the unit, so do not influence the adjustment of shaft system of unit behind low pressure upper outer casing and the high pressure upper outer casing installation in position.
The weight of unit mesolow upper outer casing reaches more than 30 ton, when the low pressure upper outer casing is in place, under the influence of its weight, the center of high pressure rotor and low pressure rotor will produce deviation, cause the shaft system of unit centration error, influence the normal operation of unit, this method is in place temporarily with the low pressure upper outer casing, measure and judge the centre deviation value of high pressure rotor and low pressure rotor then, and look the adjustment that deviate can conveniently be implemented the low pressure rotor bearing, avoided adopting the dismounting of capable low pressure rotor bearing again of special-purpose suspension rod; Adopt this method to make shaft system of unit adjust saving of time 8-10 hour, the time of this saving mainly is that the interim front and back adjustment low pressure rotor bearing in place of low pressure upper outer casing is quite convenient, no longer need to turn over a watt operation, improved the adjustment efficiency of operation with special-purpose suspension rod.Adopt this method after unit puts into operation, each bear vibration of unit has improved the precision that shaft system of unit is adjusted all at (each bear vibration allowed band of unit is below 0.10mm) below the 0.04mm after testing.Press Baosteel power plant Statistical Criteria, about 2,200,000 yuans of the economic benefit of every 350MW Turbo-generator Set generating every day creation, save 8-10 hour axial center and adjust the time, can create economic benefit more than 700,000 yuan (RMB), obtain high economic benefit.
Claims (1)
1. the adjusting method at a steam-electric generating set shafting center, it is characterized in that: survey data is measured and write down to this method at first to each rotor center on the steam-electric generating set shafting, then that the low pressure upper outer casing is in place temporarily, under the effect of low pressure upper outer casing weight, once more survey data is measured and write down to Turbo-generator Set high pressure rotor and low pressure rotor center, the survey data that compares low pressure upper outer casing front and back in place high pressure rotor and low pressure rotor center, described comparing data is during greater than 0.02mm, then directly described comparing data is adjusted and be adjusted to two low pressure rotor bearings smaller or equal to 0.02mm, described comparing data is during smaller or equal to 0.02mm, then the formal in place and installation high pressure upper outer casing with the low pressure upper outer casing is adjusted two high pressure rotor bearing to steam-electric generating set shafting centers and is met technological requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102021697A CN102287242A (en) | 2010-06-17 | 2010-06-17 | Adjusting method of turbo-generator set shafting center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102021697A CN102287242A (en) | 2010-06-17 | 2010-06-17 | Adjusting method of turbo-generator set shafting center |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102287242A true CN102287242A (en) | 2011-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102021697A Pending CN102287242A (en) | 2010-06-17 | 2010-06-17 | Adjusting method of turbo-generator set shafting center |
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| CN (1) | CN102287242A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106505805A (en) * | 2016-12-06 | 2017-03-15 | 中广核工程有限公司 | The installation method of generator unit stator portion of nuclear power plant set, measurement apparatus, support meanss |
| CN107655689A (en) * | 2016-07-25 | 2018-02-02 | Lg电子株式会社 | The measuring method of bearing centre error |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1405433A (en) * | 2002-10-30 | 2003-03-26 | 东方汽轮机厂 | Steam turbine general-assembling cylinder-joining centering method |
| CN1955442A (en) * | 2006-10-09 | 2007-05-02 | 四川东风电机厂有限公司 | Mounting regulating method of 30MW steam turbogenerator |
-
2010
- 2010-06-17 CN CN2010102021697A patent/CN102287242A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1405433A (en) * | 2002-10-30 | 2003-03-26 | 东方汽轮机厂 | Steam turbine general-assembling cylinder-joining centering method |
| CN1955442A (en) * | 2006-10-09 | 2007-05-02 | 四川东风电机厂有限公司 | Mounting regulating method of 30MW steam turbogenerator |
Non-Patent Citations (2)
| Title |
|---|
| 廖清成，蒲实，刘述权: "浅谈大型机组轴系找中心", 《四川电力技术》 * |
| 陈国强: "浅析汽轮发电机全实缸校中心的利弊", 《华东电力》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655689A (en) * | 2016-07-25 | 2018-02-02 | Lg电子株式会社 | The measuring method of bearing centre error |
| US10480922B2 (en) | 2016-07-25 | 2019-11-19 | Lg Electronics Inc. | Center error value of bearings measuring method |
| CN106505805A (en) * | 2016-12-06 | 2017-03-15 | 中广核工程有限公司 | The installation method of generator unit stator portion of nuclear power plant set, measurement apparatus, support meanss |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111221 |