CN102998475A - Quick rotating machine rotating overspeed protection method - Google Patents
Quick rotating machine rotating overspeed protection method Download PDFInfo
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- CN102998475A CN102998475A CN2012104847728A CN201210484772A CN102998475A CN 102998475 A CN102998475 A CN 102998475A CN 2012104847728 A CN2012104847728 A CN 2012104847728A CN 201210484772 A CN201210484772 A CN 201210484772A CN 102998475 A CN102998475 A CN 102998475A
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- unit interval
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- threshold values
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000001133 acceleration Effects 0.000 claims abstract description 16
- 238000005259 measurement Methods 0.000 abstract 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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Abstract
The invention discloses a quick rotating machine rotating overspeed protection method which includes the following steps: unit time speed measurement and calculation, unit time acceleration measurement and calculation, current unit time speed judgment and next unit time speed judgment and alarm processing. The protection method is capable of measuring, calculating, judging and predicting the speed of a rotating machine and is capable of conducting alarm processing when the rotating machine meets overspeed or has overspeed trend.
Description
Technical field
The invention belongs to rotating machinery tachometric survey field, particularly a kind of fast rotating machinery rotates the overspeed protection method.
Background technology
Rotary mechanical part can produce the faults such as damage or excess Temperature in the situation of long-time hypervelocity; traditional safeguard procedures adopt the mode of protecting after Real-Time Monitoring rotating speed, the hypervelocity; rotating speed is lacked the predictability protection; the rotating machinery that therefore, need to have rotor speed forecast function and pre-defencive function rotates the overspeed protection method.
Summary of the invention
Order of the present invention is to provide a kind of fast rotating machinery to rotate the overspeed protection method.
The technical scheme that realizes above-mentioned purpose is: a kind of fast rotating machinery rotates the overspeed protection method, comprises step: unit interval speed is calculated, the unit interval acceleration is calculated, current unit interval speed is judged, next unit interval speed is judged and the processing of reporting to the police.
Above-mentioned a kind of fast rotating machinery rotates the overspeed protection method; wherein; described unit interval speed measuring and calculating; refer to that the rotating machinery swing offset measures according to rotating cycle count value N within the unit interval; unit interval count value speed V=N/T enters unit interval acceleration measuring and calculating step after finishing.
Above-mentioned a kind of fast rotating machinery rotates the overspeed protection method; wherein; described unit interval acceleration measuring and calculating; refer to that in the upper unit interval inward turning counting number value of turn-taking be N1; be N2 in the current unit interval inward turning counting number value of turn-taking; the unit interval count value changes acceleration a=(N2/T-N1/T)/T, enters current unit interval speed determining step after finishing.
Above-mentioned a kind of fast rotating machinery rotates the overspeed protection method; wherein; described current unit interval speed is judged; refer to current unit interval count value speed V and setting threshold values are compared; if greater than threshold values; enter the warning treatment step, if be not more than threshold values, enter next unit interval speed determining step.
Above-mentioned a kind of fast rotating machinery rotates the overspeed protection method; wherein; described next unit interval speed is judged; refer to next unit interval speed is predicted in current unit interval count value speed V and current unit interval acceleration a addition, and set threshold values relatively; if greater than threshold values; enter the warning treatment step, if be not more than threshold values, enter unit interval speed measuring and calculating step.
The invention has the beneficial effects as follows: the present invention calculates, judges and predict rotating machinery speed, the processing of reporting to the police in the time of can or having hypervelocity trend in the rotating machinery hypervelocity.
Description of drawings
Fig. 1 is schematic flow sheet of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
See also Fig. 1, provided a kind of fast rotating machinery among the figure and rotated the overspeed protection method, comprise step: unit interval speed is calculated, the unit interval acceleration is calculated, current unit interval speed is judged, next unit interval speed is judged and the processing of reporting to the police.
Unit interval speed measuring and calculating refers to that the rotating machinery swing offset measures according to rotating cycle count value N within the unit interval, and unit interval count value speed V=N/T enters unit interval acceleration measuring and calculating step after finishing.
Unit interval acceleration measuring and calculating, refer to that in the upper unit interval inward turning counting number value of turn-taking be N1, be N2 in the current unit interval inward turning counting number value of turn-taking, the unit interval count value changes acceleration a=(N2/T-N1/T)/T, enters current unit interval speed determining step after finishing.
Current unit interval speed is judged, refers to current unit interval count value speed V and setting threshold values are compared, if greater than threshold values, enters the warning treatment step, if be not more than threshold values, enters next unit interval speed determining step.
Next unit interval speed is judged, refer to current unit interval count value speed V and current unit interval acceleration a addition, predict next unit interval speed, compare with the setting threshold values, if greater than threshold values, enter the warning treatment step, if be not more than threshold values, enter unit interval speed measuring and calculating step.
Below embodiment has been described in detail the present invention by reference to the accompanying drawings, and those skilled in the art can make the many variations example to the present invention according to the above description.Thereby some details among the embodiment should not consist of limitation of the invention, and the scope that the present invention will define with appended claims is as protection scope of the present invention.
Claims (5)
1. a fast rotating machinery rotation overspeed protection method is characterized in that, comprises step: unit interval speed measuring and calculating, unit interval acceleration measuring and calculating, current unit interval speed are judged, next unit interval speed is judged and warning is processed.
2. a kind of fast rotating machinery according to claim 1 rotates the overspeed protection method; it is characterized in that; described unit interval speed measuring and calculating; refer to that the rotating machinery swing offset measures according to rotating cycle count value N within the unit interval; unit interval count value speed V=N/T enters unit interval acceleration measuring and calculating step after finishing.
3. a kind of fast rotating machinery according to claim 1 rotates the overspeed protection method; it is characterized in that; described unit interval acceleration measuring and calculating; refer to that in the upper unit interval inward turning counting number value of turn-taking be N1; be N2 in the current unit interval inward turning counting number value of turn-taking; the unit interval count value changes acceleration a=(N2/T-N1/T)/T, enters current unit interval speed determining step after finishing.
4. a kind of fast rotating machinery according to claim 1 rotates the overspeed protection method; it is characterized in that; described current unit interval speed is judged; refer to current unit interval count value speed V and setting threshold values are compared; if greater than threshold values; enter the warning treatment step, if be not more than threshold values, enter next unit interval speed determining step.
5. a kind of fast rotating machinery according to claim 1 rotates the overspeed protection method; it is characterized in that; described next unit interval speed is judged; refer to next unit interval speed is predicted in current unit interval count value speed V and current unit interval acceleration a addition, and set threshold values relatively; if greater than threshold values; enter the warning treatment step, if be not more than threshold values, enter unit interval speed measuring and calculating step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104847728A CN102998475A (en) | 2012-11-26 | 2012-11-26 | Quick rotating machine rotating overspeed protection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104847728A CN102998475A (en) | 2012-11-26 | 2012-11-26 | Quick rotating machine rotating overspeed protection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102998475A true CN102998475A (en) | 2013-03-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104847728A Pending CN102998475A (en) | 2012-11-26 | 2012-11-26 | Quick rotating machine rotating overspeed protection method |
Country Status (1)
| Country | Link |
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| CN (1) | CN102998475A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026383A (en) * | 2018-07-09 | 2018-12-18 | 大同北方天力增压技术有限公司 | A kind of supercharger speed monitoring record and fault pre-alarming device and method for early warning |
| CN112763744A (en) * | 2020-12-24 | 2021-05-07 | 潍柴动力股份有限公司 | Method, device and equipment for determining engine speed |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101258088A (en) * | 2006-07-26 | 2008-09-03 | 维托公开股份有限公司 | Extended hoistway backup application |
| CN101792089A (en) * | 2010-03-23 | 2010-08-04 | 上海能港电气工程科技有限公司 | Protection switching device for lost control of crane and related control method |
| CN202171595U (en) * | 2011-08-03 | 2012-03-21 | 北京派利斯科技有限公司 | Overspeed protection module and overspeed protection system using same |
-
2012
- 2012-11-26 CN CN2012104847728A patent/CN102998475A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101258088A (en) * | 2006-07-26 | 2008-09-03 | 维托公开股份有限公司 | Extended hoistway backup application |
| CN101792089A (en) * | 2010-03-23 | 2010-08-04 | 上海能港电气工程科技有限公司 | Protection switching device for lost control of crane and related control method |
| CN202171595U (en) * | 2011-08-03 | 2012-03-21 | 北京派利斯科技有限公司 | Overspeed protection module and overspeed protection system using same |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026383A (en) * | 2018-07-09 | 2018-12-18 | 大同北方天力增压技术有限公司 | A kind of supercharger speed monitoring record and fault pre-alarming device and method for early warning |
| CN112763744A (en) * | 2020-12-24 | 2021-05-07 | 潍柴动力股份有限公司 | Method, device and equipment for determining engine speed |
| CN112763744B (en) * | 2020-12-24 | 2022-09-23 | 潍柴动力股份有限公司 | Method, device and equipment for determining engine speed |
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Application publication date: 20130327 |