JPS56118594A - Vibration monitoring method for impeller of rotary machine - Google Patents
Vibration monitoring method for impeller of rotary machineInfo
- Publication number
- JPS56118594A JPS56118594A JP2051280A JP2051280A JPS56118594A JP S56118594 A JPS56118594 A JP S56118594A JP 2051280 A JP2051280 A JP 2051280A JP 2051280 A JP2051280 A JP 2051280A JP S56118594 A JPS56118594 A JP S56118594A
- Authority
- JP
- Japan
- Prior art keywords
- impeller
- rotary machine
- vibrations
- modulator
- rotor
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title abstract 3
- 238000012544 monitoring process Methods 0.000 title 1
- 238000010276 construction Methods 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 238000012806 monitoring device Methods 0.000 abstract 1
Landscapes
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
PURPOSE: To lessen unbalance of a rotary machine and simplify thereby the balancing process by such a construction that vibrations of an impeller are monitored from fixation agent, where no strain gage or leads are necessarily mounted on the rotor.
CONSTITUTION: To the casing 8 of fixation agent, contactless vibration measuring pickups 9aW9c to sense vibrations of impeller 1 are fixed both in the circumferential and radial directions, and a shaft vibration measuring pickup 9d to sense vibrations of the shaft 4 is mounted on the casing 8 at the stationary side. The vibratory condition of the impeller 1 sensed thereby is placed into a recorder 11 through a modulator 10. To this modulator 10, the displacement component of the impeller 1 in standstill position is sent and, by removing this signal from the vibratory condition under rotation, the vibration amplitude of the impeller itself 1 can be determined. Accordingly, this monitoring device does not require anything to be attached to the rotor and a less unbalance and a simplified balancing process are assured.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2051280A JPS56118594A (en) | 1980-02-22 | 1980-02-22 | Vibration monitoring method for impeller of rotary machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2051280A JPS56118594A (en) | 1980-02-22 | 1980-02-22 | Vibration monitoring method for impeller of rotary machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56118594A true JPS56118594A (en) | 1981-09-17 |
Family
ID=12029203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2051280A Pending JPS56118594A (en) | 1980-02-22 | 1980-02-22 | Vibration monitoring method for impeller of rotary machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56118594A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575411A (en) * | 2017-07-11 | 2018-01-12 | 中铁第四勘察设计院集团有限公司 | A kind of Railway Tunnel draft fan safety monitoring assembly and method |
-
1980
- 1980-02-22 JP JP2051280A patent/JPS56118594A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575411A (en) * | 2017-07-11 | 2018-01-12 | 中铁第四勘察设计院集团有限公司 | A kind of Railway Tunnel draft fan safety monitoring assembly and method |
| CN107575411B (en) * | 2017-07-11 | 2019-05-17 | 中铁第四勘察设计院集团有限公司 | A kind of Railway Tunnel draft fan safety monitoring assembly and method |
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