JPS5523432A - Abnormality diagnostic unit for rotary machine - Google Patents
Abnormality diagnostic unit for rotary machineInfo
- Publication number
- JPS5523432A JPS5523432A JP9609378A JP9609378A JPS5523432A JP S5523432 A JPS5523432 A JP S5523432A JP 9609378 A JP9609378 A JP 9609378A JP 9609378 A JP9609378 A JP 9609378A JP S5523432 A JPS5523432 A JP S5523432A
- Authority
- JP
- Japan
- Prior art keywords
- normal
- abnormality
- time
- turbine
- damping characteristics
- 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.)
- Granted
Links
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
PURPOSE: To diagnose abnormality by comparing a change in state when the supply of driving energy to a rotary machine such as the turbine of a power plant with normal velocity damping characteristics preset under the same conditions.
CONSTITUTION: High-temperature and high-pressure vapor turning generator G, coupled coaxially with turbine T, at rotational frequency (n0) is cut off by control valve 3 and at the same time, system load 1 is disconnected by switch 2. As a result, revolution speed (n) of the turbine increases temporarily and then starts decreasing. The state at this time is inputted via sensor 4 to abnormality diagnostic unit 5, where a check is made. Input processor 6 and time measurement unit 7 are connected to unit 8 stored with normal velocity damping characteristics, etc., and abnormality is displayed 10 under the control of decision controller 9. Time (t1-t2) from (t1) for the 1st normal revolution speed (n1) to (t2) for the 2nd normal rotational frequency (n2) is compared with damping characteristics of a normal measurement value, and the abnormality can be found judging from the difference in value.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9609378A JPS5523432A (en) | 1978-08-09 | 1978-08-09 | Abnormality diagnostic unit for rotary machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9609378A JPS5523432A (en) | 1978-08-09 | 1978-08-09 | Abnormality diagnostic unit for rotary machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5523432A true JPS5523432A (en) | 1980-02-19 |
| JPS6130702B2 JPS6130702B2 (en) | 1986-07-15 |
Family
ID=14155775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9609378A Granted JPS5523432A (en) | 1978-08-09 | 1978-08-09 | Abnormality diagnostic unit for rotary machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5523432A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003021579A (en) * | 2001-07-09 | 2003-01-24 | Yaskawa Electric Corp | Diagnostic method for abnormality of machine |
| JP2006105956A (en) * | 2004-09-13 | 2006-04-20 | Nsk Ltd | Abnormality diagnostic apparatus |
| US7860663B2 (en) | 2004-09-13 | 2010-12-28 | Nsk Ltd. | Abnormality diagnosing apparatus and abnormality diagnosing method |
| JP2015075406A (en) * | 2013-10-09 | 2015-04-20 | 三菱重工業株式会社 | Abnormality determination device and abnormality determination method of rotary machine |
-
1978
- 1978-08-09 JP JP9609378A patent/JPS5523432A/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003021579A (en) * | 2001-07-09 | 2003-01-24 | Yaskawa Electric Corp | Diagnostic method for abnormality of machine |
| JP4721030B2 (en) * | 2001-07-09 | 2011-07-13 | 株式会社安川電機 | Machine abnormality diagnosis device |
| JP2006105956A (en) * | 2004-09-13 | 2006-04-20 | Nsk Ltd | Abnormality diagnostic apparatus |
| JP4581693B2 (en) * | 2004-09-13 | 2010-11-17 | 日本精工株式会社 | Abnormality diagnosis device |
| US7860663B2 (en) | 2004-09-13 | 2010-12-28 | Nsk Ltd. | Abnormality diagnosing apparatus and abnormality diagnosing method |
| JP2015075406A (en) * | 2013-10-09 | 2015-04-20 | 三菱重工業株式会社 | Abnormality determination device and abnormality determination method of rotary machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6130702B2 (en) | 1986-07-15 |
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