CN106968875A - Pump turbine gate positing measurement apparatus and method - Google Patents
Pump turbine gate positing measurement apparatus and method Download PDFInfo
- Publication number
- CN106968875A CN106968875A CN201710395972.9A CN201710395972A CN106968875A CN 106968875 A CN106968875 A CN 106968875A CN 201710395972 A CN201710395972 A CN 201710395972A CN 106968875 A CN106968875 A CN 106968875A
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- China
- Prior art keywords
- guide vane
- gate positing
- ring
- laser range
- plate
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Links
- 238000005259 measurement Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000013307 optical fiber Substances 0.000 claims description 7
- 230000004907 flux Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B15/00—Controlling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
- F03B11/008—Measuring or testing arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/16—Stators
- F03B3/18—Stator blades; Guide conduits or vanes, e.g. adjustable
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a kind of pump turbine gate positing measurement apparatus and method, pump turbine gate positing measurement apparatus includes fixed base ring and the control ring that can be rotated by control, flat board stator is connected between the two, during control ring left-right rotation each stator can be driven synchronously to open or close.And high-precision laser range-finding sensor is fixed with the shell of servomotor, and it is fixed with gate positing datum plate in the end of piston rod.The present invention is measured guide vane servomotor stroke using the method for high-precision laser range-finding and obtains gate positing so as to count, have the advantages that anti-electromagnetic interference capability is strong, precision is high, small volume, gate positing available for control ring control mode is measured, it can also be used to the gate positing measurement of single wicket gate control mode.
Description
Technical field
The invention belongs to hydroenergy storage station speed regulator observation and control technology field, and in particular to a kind of pump turbine gate positing
Measurement apparatus and method.
Background technology
Speed regulator is one of most important measuring and controlling equipment of hydroenergy storage station, its major function be adjust unit frequency and
Load, makes it meet power system requirements or setting value, undertakes the operations such as Unit Commitment, grid-connected, load and frequency regulation, simultaneously
It is one of performs device that power station is controlled with unit safety, in case of a fault, switch off the pump guide vanes of water turbine, prevents the state of affairs from expanding
Greatly.Stator is the core mechanical operating parts that pump turbine controls current, and the accuracy and reliability of its position measurement are direct
The regulation quality of relation machine class frequency and load.
Current pump-storage generator gate positing measures and uses conventional displacement transducer more, anti-vibration, poor anti jamming capability,
Reliability is relatively low.
The content of the invention：
The present invention is directed to speed regulator in current hydroenergy storage station, and there is provided a kind of water pump with deficiency the problem of observing and controlling process is present
Guide vanes of water turbine position-measurement device and method.
The technical scheme of use：A kind of pump turbine gate positing measurement apparatus, including base ring, control ring, servomotor
And stator, the base ring is fixed in frame, and multiple axle sleeves have been uniformly arranged on base ring；The lower end of the control ring is provided with down
Edge flanging, is evenly equipped with axis hole on lower edge flanging, and axis hole quantity is identical with axle bed quantity, and pacifies respectively in each axis hole
Equipped with root rotating shaft, driving plate is respectively articulated with every root rotating shaft, the other end of driving plate is hinged with follower plate by middle rotating shaft,
The end of each follower plate is hinged with guide vane teunnion, and the lower end of each guide vane teunnion is arranged in the corresponding axle sleeve of base ring；Divide on each guide vane teunnion
It is furnished with flat board stator；A pair of parallel to set rack-mounted servomotor, the end of its piston rod is being controlled by hinge
The upper end of ring processed；High-precision laser range-finding sensor is fixed with the shell of the servomotor, and at the end of the piston rod
Portion is fixed with gate positing datum plate；The front center pair of the high-precision laser range-finding sensor and gate positing datum plate
Should, high-precision laser range-finding sensor is connected by optical fiber or twisted-pair feeder with speed setting controller.
The flat engaging lug detained downwards, flat engaging lug are provided with the upper end both sides symmetric position of the control ring
End face with driving ring surface it is parallel, form gap between the two；The piston-rod end of the servomotor is connected with connection sheet, even
Contact pin matching is set in the gap and is hinged on bearing pin, and connection sheet is restrained to horizontally rotate along rotating shaft.
Furthermore it is also possible to be installed in the upper end of each guide vane teunnion also by correspondence axle bed in frame, so as to each guide vane teunnion
More preferable constraint is played, stability is improved.
A kind of pump turbine gate positing measuring method, sets a set of pump turbine gate positing measurement dress first
Put, the measurement apparatus includes fixed base ring and the control ring that can be rotated by control, and the lower end of control ring is provided with outside lower edge
Flange, is evenly equipped with axis hole on lower edge flanging, and axis hole quantity is identical with axle bed quantity, and is separately installed with each axis hole
Driving plate has been respectively articulated with root rotating shaft, every root rotating shaft, the other end of driving plate is hinged with follower plate by middle rotating shaft, respectively from
The end of dynamic plate is hinged with guide vane teunnion, and the lower end of each guide vane teunnion is arranged in the corresponding axle sleeve of base ring；It is distributed with each guide vane teunnion
Flat board stator；The driving ring can synchronously drive each guide vane teunnion rotation equal angular when rotating, so as to realize that control stator is same
Walk aperture；The piston rod end for the servomotor be arrangeding in parallel is by hinge in the upper end of control ring；And in the outer of servomotor
High-precision laser range-finding sensor is fixed with shell, and gate positing datum plate is fixed with the end of piston rod；
The high-precision laser range-finding sensor is corresponding with the front center of gate positing datum plate, high-precision laser range-finding sensing
Device is connected by optical fiber or twisted-pair feeder with speed regulator controller；When the piston rod of control driving servomotor is flexible, two high-precision
Piston stroke variable signal △ d1 and the △ d2 detected is passed to speed setting controller, speed regulating control by degree laser range sensor
Device calculates each guide vane opening according to △ d1 and △ d2, and then calculates opening and closing flux.
Furthermore it is also possible to be provided with angular transducer between part driving plate and follower plate, adopted by angular transducer
Angle change between collection driving plate and follower plate is used as auxiliary information and is sent to speed setting controller.
Beneficial effects of the present invention：The present invention measured using the method for high-precision laser range-finding guide vane servomotor stroke from
And count and obtain gate positing, have the advantages that anti-electromagnetic interference capability is strong, precision is high, small volume, available for control ring controlling party
The gate positing measurement of formula, it can also be used to the gate positing measurement of single wicket gate control mode.
Brief description of the drawings：
Fig. 1 is the structural representation of the present invention.
Label in figure, 1 is base ring, and 2 be control ring, and 3 be lower edge flanging, and 4 be engaging lug, and 5 be servomotor, and 6 be piston
Bar, 7 be sensor fixed seat, and 8 be high-precision laser range-finding sensor, and 9 be gate positing datum plate, and 10 be bearing pin, and 11 be company
Contact pin, 12 be driving plate, and 13 be follower plate, and 14 be root rotating shaft, and 15 be middle rotating shaft, and 16 be guide vane teunnion, and 17 be stator.
Embodiment：
Embodiment 1：Pump turbine gate positing measurement apparatus as described in Figure 1, base ring 1 is a retainer ring, and control ring 2 is
One be capable of left-right rotation loose collar.Base ring 1 can be fixed in frame.
Multiple axle sleeves are uniformly arranged on base ring 1, for installing many guide vane teunnions 16.
The lower end of control ring 2 is provided with lower edge flanging 3, and axis hole, axis hole quantity and axle are evenly equipped with lower edge flanging 3
Seat quantity is identical, and is separately installed with each axis hole in root rotating shaft, every root rotating shaft and has been respectively articulated with driving plate, driving plate
The other end follower plate is hinged with by middle rotating shaft, the end of each follower plate is hinged with guide vane teunnion 16, the lower end of each guide vane teunnion 16
In the corresponding axle sleeve of base ring 1.Flat board stator is distributed with each guide vane teunnion 16.
A pair of parallel to set rack-mounted servomotor 5, the end of its piston rod 6 is by hinge in control ring
2 upper end.High-precision laser range-finding sensor 8 is fixed with the shell of servomotor 5, and is fixed with the end of piston rod 6
Gate positing datum plate 9.High-precision laser range-finding sensor 8 is corresponding with the front center of gate positing datum plate 9, and high accuracy swashs
Ligh-ranging sensor 8 is connected by optical fiber or twisted-pair feeder with speed setting controller.
In addition, the upper end both sides symmetric position in control ring 2 is provided with the flat engaging lug 4 detained downwards, flat company
The end face of lug 4 is parallel with driving ring surface, forms gap between the two；The end of piston rod 6 of the servomotor 5 is connected with
Contact pin, connection sheet matching is set in the gap and is hinged on bearing pin, and connection sheet is restrained to horizontally rotate along rotating shaft.
At the same time it can also consider to be installed in frame also by correspondence axle bed in the upper end of each guide vane teunnion 16, so as to each
Guide vane teunnion 16 plays more preferable constraint, improves stability.
Embodiment 2：A kind of pump turbine gate positing measuring method, sets a set of pump turbine gate positing first
Measurement apparatus, the measurement apparatus includes fixed base ring 1 and the control ring 2 that can be rotated by control, and the lower end of control ring 2 is set
There is lower edge flanging, axis hole is evenly equipped with lower edge flanging, axis hole quantity is identical with axle bed quantity, and divide in each axis hole
Be not provided with root rotating shaft, every root rotating shaft and be respectively articulated with driving plate, the other end of driving plate by middle rotating shaft be hinged with from
Dynamic plate, the end of each follower plate is hinged with guide vane teunnion 16, and the lower end of each guide vane teunnion 16 is arranged in the corresponding axle sleeve of base ring 1；Respectively
Flat board stator is distributed with guide vane teunnion 16；The driving ring can synchronously drive each rotation of guide vane teunnion 16 equal angular when rotating,
So as to realize the synchronous aperture of control stator；The end of piston rod 6 for the servomotor 5 be arrangeding in parallel is by hinge in control ring 2
Upper end；And high-precision laser range-finding sensor 8 is fixed with the shell of servomotor 5, and be fixed with the end of piston rod 6
Gate positing datum plate 9.
High-precision laser range-finding sensor 8 is corresponding with the front center of gate positing datum plate 9, and high-precision laser range-finding is passed
Sensor 8 is connected by optical fiber or twisted-pair feeder with speed regulator controller；When the piston rod 6 of control driving servomotor 5 stretches, two
Piston stroke variable signal △ d1 and the △ d2 detected is passed to speed setting controller by high-precision laser range-finding sensor 8, is adjusted
Fast controller calculates each guide vane opening according to △ d1 and △ d2, and then calculates opening and closing flux.
Furthermore it is also possible to be provided with angular transducer between part driving plate and follower plate, adopted by angular transducer
Angle change between collection driving plate and follower plate is used as auxiliary information and is sent to speed setting controller.
Gate positing datum plate 9 provides the fiducial reference position of gate positing measurement.High-precision laser range-finding sensor 8 has
There is optical signal to export or 4-20mA analog outputs, the distance between itself and datum plate are measured during work, and pass through optical fiber or double
Twisted wire is connected with speed regulator controller, and laser ranging signal, which is delivered to speed regulator controller, to be calculated, and draws gate positing,
And then realize machine class frequency and Load Regulation.
Gate positing measuring method is as follows：
In Fig. 1, stator is the control mode of control ring 2, and a set of measurement apparatus is respectively installed on two servomotors 5 of control ring 2.It is single
Wicket gate control mode is similar, and a set of measurement apparatus is respectively installed on each guide vane servomotor 5.
Datum plate is fixed on the end of the piston rod 6 of guide vane servomotor 5 using the higher material of rigidity.
High-precision laser range-finding sensor 8 is fixed on the cylinder body leading section of guide vane servomotor 5.
During stator closed positions, laser range sensor measures a minimum range, this minimum range in speed regulator
It is demarcated as zero point in controller.
During stator fully open position, laser range sensor measures a ultimate range, this minimum range in speed regulator
It is demarcated as 100% guide vane opening in controller.
Stator is during opening and closing, and laser range sensor measures a distance, and this distance delivers to speed regulator
After controller, guide vane opening value is converted into by linear relationship according to the range of demarcation in speed regulator controller, for unit
Frequency and Load Regulation.
When the corresponding gate positing measured value deviation of two servomotors 5 is more than setting value 1 in control ring 2, speed regulator control
Device sends alarm signal.
When the corresponding gate positing measured value deviation of two servomotors 5 is more than setting value 2 in control ring 2, speed regulator control
Device sends alarm signal and shut down.
Claims (5)
1. a kind of pump turbine gate positing measurement apparatus, including base ring, control ring, servomotor and stator, it is characterized in that：Institute
State base ring to be fixed in frame, multiple axle sleeves have been uniformly arranged on base ring；The lower end of the control ring is provided with lower edge flanging,
Axis hole is evenly equipped with lower edge flanging, axis hole quantity is identical with axle bed quantity, and root is separately installed with each axis hole and turned
Driving plate is respectively articulated with axle, every root rotating shaft, the other end of driving plate is hinged with follower plate, each follower plate by middle rotating shaft
End be hinged with guide vane teunnion, the lower end of each guide vane teunnion is arranged in the corresponding axle sleeve of base ring；Flat board is distributed with each guide vane teunnion
Stator；A pair of parallel to set rack-mounted servomotor, the end of its piston rod is by hinge in the upper of control ring
End；High-precision laser range-finding sensor is fixed with the shell of the servomotor, and is fixed with the end of the piston rod
Gate positing datum plate；The high-precision laser range-finding sensor is corresponding with the front center of gate positing datum plate, high accuracy
Laser range sensor is connected by optical fiber or twisted-pair feeder with speed setting controller.
2. pump turbine gate positing measurement apparatus according to claim 1, it is characterized in that：In the upper of the control ring
End both sides symmetric position is provided with the flat engaging lug detained downwards, and the end face of flat engaging lug is parallel with driving ring surface,
Gap is formed between the two；The piston-rod end of the servomotor is connected with connection sheet, and connection sheet matching is set in the gap
And be hinged on bearing pin, connection sheet is restrained to horizontally rotate along rotating shaft.
3. pump turbine gate positing measurement apparatus according to claim 1, it is characterized in that：Each guide vane teunnion it is upper
End is installed in frame also by correspondence axle bed.
4. a kind of pump turbine gate positing measuring method, it is characterized in that：A set of pump turbine gate positing is set first
Measurement apparatus, the measurement apparatus includes fixed base ring and the control ring that can be rotated by control, and the lower end of control ring is provided with
Lower edge flanging, is evenly equipped with axis hole on lower edge flanging, and axis hole quantity is identical with axle bed quantity, and in each axis hole respectively
It is provided with root rotating shaft, every root rotating shaft and has been respectively articulated with driving plate, the other end of driving plate is hinged with driven by middle rotating shaft
Plate, the end of each follower plate is hinged with guide vane teunnion, and the lower end of each guide vane teunnion is arranged in the corresponding axle sleeve of base ring；On each guide vane teunnion
Flat board stator is distributed with；The driving ring can synchronously drive each guide vane teunnion rotation equal angular when rotating, so as to realize control
Stator synchronization aperture；The piston rod end for the servomotor be arrangeding in parallel is by hinge in the upper end of control ring；And in relay
High-precision laser range-finding sensor is fixed with the shell of device, and gate positing datum plate is fixed with the end of piston rod；
The high-precision laser range-finding sensor is corresponding with the front center of gate positing datum plate, high-precision laser range-finding sensing
Device is connected by optical fiber or twisted-pair feeder with speed regulator controller；When the piston rod of control driving servomotor is flexible, two high-precision
Piston stroke variable signal △ d1 and the △ d2 detected is passed to speed setting controller, speed regulating control by degree laser range sensor
Device calculates each guide vane opening according to △ d1 and △ d2, and then calculates opening and closing flux.
5. pump turbine gate positing measuring method according to claim 4, it is characterized in that：In at least one driving plate
Angular transducer is installed between follower plate, by angular transducer gather the angle change between driving plate and follower plate come
Speed setting controller is sent to as auxiliary information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710395972.9A CN106968875A (en) | 2017-05-31 | 2017-05-31 | Pump turbine gate positing measurement apparatus and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710395972.9A CN106968875A (en) | 2017-05-31 | 2017-05-31 | Pump turbine gate positing measurement apparatus and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106968875A true CN106968875A (en) | 2017-07-21 |
Family
ID=59326153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710395972.9A Pending CN106968875A (en) | 2017-05-31 | 2017-05-31 | Pump turbine gate positing measurement apparatus and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106968875A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223241A (en) * | 2018-01-12 | 2018-06-29 | 国家电网公司 | A kind of guide vane feeds back breakdown judge logical method |
| CN109751174A (en) * | 2019-03-08 | 2019-05-14 | 国家电网有限公司 | A kind of hydraulic turbine list guide vane servomotor detection system |
| CN111912620A (en) * | 2020-06-23 | 2020-11-10 | 河海大学 | Horizontal axis tidal current energy water turbine experimental device based on laser range finder and experimental method thereof |
| CN112096555A (en) * | 2020-09-29 | 2020-12-18 | 深圳市科中云技术有限公司 | Device, circuit and method for measuring opening degree of guide vane, terminal and storage medium |
| CN112325768A (en) * | 2020-10-16 | 2021-02-05 | 葛洲坝测绘地理信息技术有限公司 | Precise measurement method for mounting servomotor of hydroelectric generating set based on laser tracking measurement |
| CN113062827A (en) * | 2021-04-27 | 2021-07-02 | 杭州福鼎节能科技服务有限公司 | Industrial circulating water system residual pressure power generation device |
| CN115405454A (en) * | 2022-08-31 | 2022-11-29 | 扬州大学 | Multifunctional mixed-flow water turbine and automatic adjusting system |
| CN115822839A (en) * | 2022-11-19 | 2023-03-21 | 江苏大学流体机械温岭研究院 | Energy recovery turbine draft tube with guide vanes |
| CN117685871A (en) * | 2024-02-04 | 2024-03-12 | 东方电气集团东方电机有限公司 | Guide vane opening monitoring method, monitoring device and computer readable storage medium |
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| CN101260858A (en) * | 2008-04-17 | 2008-09-10 | 山东电力研究院 | Large hydraulic turbines stationary guide blade synchronous regulation and control method |
| CN201593475U (en) * | 2009-11-13 | 2010-09-29 | 天津市天发重型水电设备制造有限公司 | Guide vane drive mechanism of mixed flow type water turbine and axial flow type water turbine |
| JP2011256751A (en) * | 2010-06-08 | 2011-12-22 | Chugoku Electric Power Co Inc:The | Guide vane state monitoring device of hydraulic power generation turbine, and turbine protection processing method using the same |
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| CN204783445U (en) * | 2015-05-29 | 2015-11-18 | 广西桂冠开投电力有限责任公司 | Automatic control adjusting device of hydraulic turbine water distributor |
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| CN101260858A (en) * | 2008-04-17 | 2008-09-10 | 山东电力研究院 | Large hydraulic turbines stationary guide blade synchronous regulation and control method |
| CN201593475U (en) * | 2009-11-13 | 2010-09-29 | 天津市天发重型水电设备制造有限公司 | Guide vane drive mechanism of mixed flow type water turbine and axial flow type water turbine |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223241A (en) * | 2018-01-12 | 2018-06-29 | 国家电网公司 | A kind of guide vane feeds back breakdown judge logical method |
| CN108223241B (en) * | 2018-01-12 | 2020-11-10 | 国家电网公司 | Guide vane feedback fault judgment logic method |
| CN109751174A (en) * | 2019-03-08 | 2019-05-14 | 国家电网有限公司 | A kind of hydraulic turbine list guide vane servomotor detection system |
| CN111912620A (en) * | 2020-06-23 | 2020-11-10 | 河海大学 | Horizontal axis tidal current energy water turbine experimental device based on laser range finder and experimental method thereof |
| CN112096555B (en) * | 2020-09-29 | 2022-08-02 | 深圳市科中云技术有限公司 | Device, circuit and method for measuring opening degree of guide vane, terminal and storage medium |
| CN112096555A (en) * | 2020-09-29 | 2020-12-18 | 深圳市科中云技术有限公司 | Device, circuit and method for measuring opening degree of guide vane, terminal and storage medium |
| CN112325768A (en) * | 2020-10-16 | 2021-02-05 | 葛洲坝测绘地理信息技术有限公司 | Precise measurement method for mounting servomotor of hydroelectric generating set based on laser tracking measurement |
| CN112325768B (en) * | 2020-10-16 | 2021-08-24 | 葛洲坝测绘地理信息技术有限公司 | Precise measurement method for mounting servomotor of hydroelectric generating set based on laser tracking measurement |
| CN113062827A (en) * | 2021-04-27 | 2021-07-02 | 杭州福鼎节能科技服务有限公司 | Industrial circulating water system residual pressure power generation device |
| CN113062827B (en) * | 2021-04-27 | 2021-11-16 | 杭州福鼎节能科技服务有限公司 | Industrial circulating water system residual pressure power generation device |
| CN115405454A (en) * | 2022-08-31 | 2022-11-29 | 扬州大学 | Multifunctional mixed-flow water turbine and automatic adjusting system |
| CN115405454B (en) * | 2022-08-31 | 2024-04-16 | 扬州大学 | Multifunctional mixed-flow water turbine and automatic regulating system |
| CN115822839A (en) * | 2022-11-19 | 2023-03-21 | 江苏大学流体机械温岭研究院 | Energy recovery turbine draft tube with guide vanes |
| CN117685871A (en) * | 2024-02-04 | 2024-03-12 | 东方电气集团东方电机有限公司 | Guide vane opening monitoring method, monitoring device and computer readable storage medium |
| CN117685871B (en) * | 2024-02-04 | 2024-04-16 | 东方电气集团东方电机有限公司 | Guide vane opening monitoring method, monitoring device and computer readable storage medium |
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Application publication date: 20170721 |