CN108035905A - A kind of automatic frequency-conversion control system for preventing wind turbine surge - Google Patents
A kind of automatic frequency-conversion control system for preventing wind turbine surge Download PDFInfo
- Publication number
- CN108035905A CN108035905A CN201810015364.5A CN201810015364A CN108035905A CN 108035905 A CN108035905 A CN 108035905A CN 201810015364 A CN201810015364 A CN 201810015364A CN 108035905 A CN108035905 A CN 108035905A
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- Prior art keywords
- wind turbine
- valve
- controller
- blow valve
- actual
- 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.)
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 11
- 238000004364 calculation method Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000000428 dust Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 208000028571 Occupational disease Diseases 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0207—Surge control by bleeding, bypassing or recycling fluids
- F04D27/0223—Control schemes therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0292—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a kind of automatic frequency-conversion control system for preventing wind turbine surge, including the inlet valve being sequentially connected by pipeline, wind turbine and the first muffler, wind turbine is driven by motor, motor is controlled by frequency converter, the front-end pipelines of wind turbine are connected with blow valve and the second muffler in turn by pipeline, the front-end pipelines of wind turbine are equipped with temperature sensor, shut-off valve and first pressure transmitter are connected with turn by pipeline on the front-end pipelines of inlet valve, second pressure transmitter is connected with by pipeline on the rear end pipeline of wind turbine, temperature sensor, first pressure transmitter, second pressure transmitter, blow valve and frequency converter are electrically connected with a controller, first pressure transmitter and second pressure transmitter are respectively monitored the pressure of inlet valve front end and wind turbine rear end, and send pressure data to controller.The configuration of the present invention is simple, control is accurate, can effectively avoid wind turbine surge, extend the service life of wind turbine.
Description
Technical field
The present invention relates to a kind of automatic frequency-conversion control system for preventing wind turbine surge.
Background technology
Industrial dust collector is equipment that is common a kind of supporting in industry or keeping a public place clean, is discarded available in industrial processes
The collection of thing, the filtering for carrying out air and purification and environmental cleanup.It can be matched at the same time with the equipment of industrial product, draw life
Dust, the chip produced in production, it is ensured that the cleaning of working environment and the health of employee.For example industrial dust collector is largely used in
Weaving and chemical industry, reduce the harm of some occupational diseases；The metal fragment that mechanical processing produces can be absorbed, prevents from damaging
Machinery equipment.
Wind turbine is the important component of industrial dust collector, and when industrial dust collector is used under severe operating mode, wind turbine easily goes out
Existing surge, so as to greatly shorten the service life of wind turbine.
The content of the invention
In view of the above-mentioned problems, the present invention provides a kind of automatic frequency-conversion control system for preventing wind turbine surge, so that effectively
Solve the problems, such as to point out in background technology.
The technical solution adopted by the present invention is：
It is a kind of to prevent the automatic frequency-conversion control system of wind turbine surge, including inlet valve, the wind turbine being sequentially connected by pipeline
With the first muffler, the wind turbine is driven by motor, and the motor is controlled by frequency converter, before the wind turbine
End pipe road is connected with blow valve and the second muffler in turn by pipeline, and the front-end pipelines of the wind turbine are equipped with temperature sensing
Device, is connected with shut-off valve and first pressure transmitter in turn on the front-end pipelines of the inlet valve by pipeline, the wind turbine
Shut-off valve and second pressure transmitter, the temperature sensor, first pressure pick-up are connected with by pipeline on the pipeline of rear end
Device, second pressure transmitter, blow valve and frequency converter are electrically connected with a controller, the first pressure transmitter and second
Pressure transmitter is respectively monitored the pressure of inlet valve front end and wind turbine rear end, and sends pressure data to controller.
Preferably, the controller is according to the standard Surging flow of wind turbine, actual revolution, standard revolution, standard work
Make temperature and actual work temperature calculates the actual Surging flow of blowing machine, calculation formula is：It is described
Controller calculates the actual flow of wind turbine according to the normal flow, actual revolution and standard revolution of wind turbine, and calculation formula is：
Wherein, FXFor the actual Surging flow of wind turbine, FSFor the standard Surging flow of wind turbine, SXFor
The actual revolution of wind turbine, SSFor the standard revolution of wind turbine, TSFor the standard operating temperature of wind turbine, TXFor the real work temperature of wind turbine
Degree, FYFor the actual flow of wind turbine, FCFor the normal flow of wind turbine, the TXBy temperature sensor monitors and it is transmitted to control
Device.
Preferably, the blow valve is switch valve, the blow valve is shown in a fully open operation when wind turbine starts, wind turbine
After starting 10-200 seconds, controller starts to control blow valve to close blow valve according to default time interval, in closing process
When the ratio of actual flow and actual Surging flow is 0.93-1.15, controller control blow valve stops closing valve, and alarms, and connects
Controller controls blow valve to increase aperture again, until alarm eliminates, then controller continues to control blow valve according to default
Time interval is closed, until blow valve is fully closed.
Preferably, the blow valve is regulating valve, the blow valve is shown in a fully open operation when wind turbine starts, wind turbine
After starting 10-200 seconds, controller starts to control blow valve to close blow valve according to default time interval, decremental offset amount,
In closing process during the ratio 0.93-1.15 of actual flow and actual Surging flow, controller control blow valve stops closing valve, and
Alarm, then controller control again blow valve increase aperture, until alarm eliminate, then controller continue control blow valve according to
Default time interval, decremental offset amount are closed, until blow valve is fully closed.
The configuration of the present invention is simple, control is accurate, can effectively avoid wind turbine surge, extend the service life of wind turbine.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention.
Embodiment
The present invention is described in further detail below by specific embodiment and with reference to attached drawing.
A kind of automatic frequency-conversion control system for preventing wind turbine surge as shown in Figure 1, the arrow in figure represent the stream of air-flow
Dynamic direction, including inlet valve 1,2 and first muffler 3 of wind turbine being sequentially connected by pipeline, the wind turbine 2 pass through motor 4
Driving, the motor 4 are controlled by frequency converter 5, and the front-end pipelines of the wind turbine 4 are connected with emptying in turn by pipeline
6 and second muffler 7 of valve, the front-end pipelines of the wind turbine 4 are equipped with temperature sensor 8, on the front-end pipelines of the inlet valve 1
Shut-off valve 9 and first pressure transmitter 10 are connected with turn by pipeline, connected on the rear end pipeline of the wind turbine 2 by pipeline
There are shut-off valve 9 and second pressure transmitter 11, the temperature sensor 8, first pressure transmitter 10, second pressure transmitter
11st, blow valve 6 and frequency converter 5 are electrically connected with a controller 12, the first pressure transmitter 10 and second pressure pick-up
Device 11 is respectively monitored the pressure of 2 rear end of 1 front end of inlet valve and wind turbine, and sends pressure data to controller 12.
The controller 12 is according to the standard Surging flow of wind turbine 2, actual revolution, standard revolution, standard operating temperature
The actual Surging flow of blowing machine 2 is calculated with actual work temperature, calculation formula is：The controller
12 calculate the actual flow of wind turbine 2 according to the normal flow, actual revolution and standard revolution of wind turbine 2, and calculation formula is：
Wherein, FXFor the actual Surging flow of wind turbine 2, FSFor the standard Surging flow of wind turbine 2, SX
For the actual revolution of wind turbine 2, SSFor the standard revolution of wind turbine 2, TSFor the standard operating temperature of wind turbine 2, TXFor the reality of wind turbine 2
Operating temperature, FYFor the actual flow of wind turbine 2, FCFor the normal flow of wind turbine 2, the TXMonitored and passed by temperature sensor 8
It is sent to controller 12.
The blow valve 6 is switch valve, and the blow valve 6 is shown in a fully open operation when wind turbine 2 starts, and wind turbine 2 starts
After 10-200 seconds, controller 12 starts to control blow valve 6 to close blow valve 6 according to default time interval, in closing process
During the ratio 0.93-1.15 of actual flow and actual Surging flow, controller 12 controls blow valve 6 to stop closing valve, and alarms, and connects
Controller 12 control again blow valve 6 increase aperture, until alarm eliminate, then controller 12 continue control blow valve 6 according to
Default time interval is closed, until blow valve 6 is fully closed.
The blow valve 6 is regulating valve, and the blow valve 6 is shown in a fully open operation when wind turbine 2 starts, and wind turbine 2 starts
After 10-200 seconds, controller 12 starts to control blow valve 6 to close blow valve 6 according to default time interval, decremental offset amount,
When the ratio of actual flow and actual Surging flow is 0.93-1.15 in closing process, controller 12 controls blow valve 6 to stop closing
Valve, and alarm, then controller 12 controls blow valve 6 to increase aperture again, until alarm eliminates, then controller 12 continues to control
Blow valve 6 is closed according to default time interval, decremental offset amount, until blow valve 6 is fully closed.
Motor overload defencive function：The motor signal that frequency converter provides is 4-20mA, which enters controller, when
When actual current value reaches 95% overload values, controller carries out the excessive alarm of electric current, when actual current value reaches 100% overload values
When, controller carries out the excessive alarm of electric current locking motor in parallel, to avoid causing overload protection to stop because starting current is excessive, palpus
Setting interlocking bypass the time, the time be 10-200 seconds, within this time overcurrent protection do not work.
Claims (4)
1. a kind of automatic frequency-conversion control system for preventing wind turbine surge, it is characterised in that enter including what is be sequentially connected by pipeline
Mouth valve (1), wind turbine (2) and the first muffler (3), the wind turbine (2) are driven by motor (4), and the motor (4) passes through
Frequency converter (5) is controlled, and the front-end pipelines of the wind turbine (4) are connected with blow valve (6) and the second noise reduction in turn by pipeline
Device (7), the front-end pipelines of the wind turbine (4) are equipped with temperature sensor (8), pass through on the front-end pipelines of the inlet valve (1)
Pipeline is connected with shut-off valve (9) and first pressure transmitter (10) in turn, is connected on the rear end pipeline of the wind turbine (2) by pipeline
It is connected to shut-off valve (9) and second pressure transmitter (11), the temperature sensor (8), first pressure transmitter (10), second
Pressure transmitter (11), blow valve (6) and frequency converter (5) are electrically connected with a controller (12), the first pressure pick-up
Device (10) and second pressure transmitter (11) are respectively monitored the pressure of inlet valve (1) front end and wind turbine (2) rear end, and will
Pressure data sends controller (12) to.
2. a kind of automatic frequency-conversion control system for preventing wind turbine surge according to claim 1, it is characterised in that described
Controller (12) is according to the standard Surging flow of wind turbine (2), actual revolution, standard revolution, standard operating temperature and real work
The actual Surging flow of temperature computation blowing machine (2), calculation formula are：Controller (12) basis
Normal flow, actual revolution and the standard revolution of wind turbine (2) calculate the actual flow of wind turbine (2), and calculation formula is：Wherein, FXFor the actual Surging flow of wind turbine (2), FSFor the standard Surging flow of wind turbine (2), SXFor wind
The actual revolution of machine (2), SSFor the standard revolution of wind turbine (2), TSFor the standard operating temperature of wind turbine (2), TXFor wind turbine (2)
Actual work temperature, FYFor the actual flow of wind turbine (2), FCFor the normal flow of wind turbine (2), the TXBy temperature sensor
(8) monitor and be transmitted to controller (12).
3. a kind of automatic frequency-conversion control system for preventing wind turbine surge according to claim 2, it is characterised in that described
Blow valve (6) is switch valve, and the blow valve (6) is shown in a fully open operation when wind turbine (2) starts, and wind turbine (2) starts 10-200
After second, controller (12) starts to control blow valve (6) to close blow valve (6) according to default time interval, in closing process
When the ratio of actual flow and actual Surging flow is 0.93-1.15, controller (12) control blow valve (6) stops closing valve, and
Alarm, then controller (12) controls blow valve (6) to increase aperture again, until alarm eliminates, then controller (12) continues to control
Blow valve (6) processed is closed according to default time interval, until blow valve (6) is fully closed.
4. a kind of automatic frequency-conversion control system for preventing wind turbine surge according to claim 2, it is characterised in that described
Blow valve (6) is regulating valve, and the blow valve (6) is shown in a fully open operation when wind turbine (2) starts, and wind turbine (2) starts 10-200
After second, controller (12) starts to control blow valve (6) to close blow valve (6) according to default time interval, decremental offset amount,
In closing process during the ratio 0.93-1.15 of actual flow and actual Surging flow, controller (12) control blow valve (6) stops
Valve is closed, and is alarmed, then controller (12) controls blow valve (6) to increase aperture again, is eliminated until alarming, then controller (12)
Continue to control blow valve (6) to be closed according to default time interval, decremental offset amount, until blow valve (6) is fully closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810015364.5A CN108035905A (en) | 2018-01-08 | 2018-01-08 | A kind of automatic frequency-conversion control system for preventing wind turbine surge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810015364.5A CN108035905A (en) | 2018-01-08 | 2018-01-08 | A kind of automatic frequency-conversion control system for preventing wind turbine surge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108035905A true CN108035905A (en) | 2018-05-15 |
Family
ID=62099324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810015364.5A Pending CN108035905A (en) | 2018-01-08 | 2018-01-08 | A kind of automatic frequency-conversion control system for preventing wind turbine surge |
Country Status (1)
| Country | Link |
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| CN (1) | CN108035905A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916103A (en) * | 2018-08-30 | 2018-11-30 | 南京磁谷科技有限公司 | A kind of three-in-one outlet emptying structure of air blower |
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| JPH06288390A (en) * | 1993-04-06 | 1994-10-11 | Hitachi Ltd | Operation control method of turbo blower or compressor piping system |
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| CN106194811A (en) * | 2016-09-26 | 2016-12-07 | 南京磁谷科技有限公司 | The operation control system of magnetic suspension centrifugal aeration air blower and control method |
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2018
- 2018-01-08 CN CN201810015364.5A patent/CN108035905A/en active Pending
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| US5195875A (en) * | 1991-12-05 | 1993-03-23 | Dresser-Rand Company | Antisurge control system for compressors |
| JPH06288390A (en) * | 1993-04-06 | 1994-10-11 | Hitachi Ltd | Operation control method of turbo blower or compressor piping system |
| EP2042743A1 (en) * | 2007-09-27 | 2009-04-01 | ABB Research Ltd. | A gas compression system, a method for controlling a gas compression system, and a device for controlling a recycle valve |
| CN201144886Y (en) * | 2008-01-09 | 2008-11-05 | 云南驰宏锌锗股份有限公司 | Blast blower surge-proof apparatus |
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| CN108916103A (en) * | 2018-08-30 | 2018-11-30 | 南京磁谷科技有限公司 | A kind of three-in-one outlet emptying structure of air blower |
| CN108916103B (en) * | 2018-08-30 | 2024-03-12 | 南京磁谷科技有限公司 | Three-in-one outlet emptying structure of blower |
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