CN108019314A - A kind of impeller system - Google Patents
A kind of impeller system Download PDFInfo
- Publication number
- CN108019314A CN108019314A CN201711499856.8A CN201711499856A CN108019314A CN 108019314 A CN108019314 A CN 108019314A CN 201711499856 A CN201711499856 A CN 201711499856A CN 108019314 A CN108019314 A CN 108019314A
- Authority
- CN
- China
- Prior art keywords
- impeller
- speed
- sensor
- speed probe
- stent
- 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
- 239000000523 sample Substances 0.000 claims abstract description 60
- 238000001514 detection method Methods 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 230000005355 Hall effect Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000012546 transfer Methods 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
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
-
- 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
- F03D—WIND MOTORS
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/304—Spool rotational speed
-
- 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
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The embodiment of the present application discloses a kind of impeller system.The embodiment of the present application includes：Impeller, shaft, stent, speed probe and housing, the shaft, the stent, the speed probe may be contained within the housing；The impeller is rotated around the shaft；The stent is fixed on the housing；The speed probe is fixed by the stent, and is more than 5 millimeters positioned at the side of the impeller, the detecting distance of the speed probe.
Description
Technical field
This application involves wind power generation field, more particularly to a kind of impeller system.
Background technology
The principle of wind-power electricity generation is to be rotated using wind-force impeller, lifted rotating speed by booster engine, is come
Promote electrical power generators, since the wind speed of natural wind is changeable, all converting all the time, the change of wind causes wind-power electricity generation
The wind speed round of machine can not be kept constant.With the increase of wind speed, the rotating speed of wind wheel is limited, on the one hand, too fast
Rotating speed can cause to damage to the miscellaneous part of wind wheel and wind energy conversion system；On the other hand, it is also desirable to which the power output of generator is limited
Within the specific limits.Therefore the real-time rotating speed of feedback wind wheel in time is needed.
Unit impeller system of the prior art includes impeller and impeller sensing device, and impeller sensing device is used to detect impeller
Rotating speed, original impeller sensing device detecting distance is 3mm, and under the influence of turbulent flow, unit impeller produces certain amplitude of fluctuation, this
Under kind situation, not only it is easy to cause prophyll wheel sensor surface and produces abrasion, causes failure to be missed also due to impeller produces swing
Report.
The content of the invention
The embodiment of the present application provides a kind of impeller system, for avoiding speed probe from being damaged.
The embodiment of the present application provides a kind of impeller system, including：
A kind of impeller system in the embodiment of the present invention, including：
Impeller, shaft, stent, speed probe and housing, the shaft, the stent, the speed probe are all provided with
It is placed in the housing；
The impeller is rotated around the shaft；
The stent is fixed on the housing；
The speed probe is fixed by the stent, and is located at the side of the impeller, the speed probe
Detecting distance is more than 5 millimeters.
Optionally, the detecting distance is 8 millimeters.
Optionally, the through hole for being useful for sensor detection rotating speed is uniformly arranged on the ring flange of the impeller.
Optionally, the speed probe device in shell, probe, the shell including being provided with sensor；The shell
For stainless steel outer cover, alternatively, the outer surface of the shell has plastic-spraying.
Optionally, the speed probe is photoelectric sensor.
Optionally, the speed probe is capacitance sensor.
Optionally, the speed probe is hall-effect speed sensor.
Optionally, the both sides of the impeller are respectively arranged with two speed probes.
Optionally, described two speed probes are symmetrically disposed on the position of impeller on the lower.
Optionally, one in described two speed probes is arranged at the position of impeller on the lower, another is arranged at leaf
Take turns top position.
In the embodiment of the present application, the detecting distance of the speed probe is more than 5mm, and unit impeller produces certain amplitude of fluctuation
In the case of spending, which is less than 5mm, avoids impeller sensing device surface from producing abrasion, ensures the detection performance of speed probe.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of impeller system in the embodiment of the present invention；
Fig. 2 is the schematic diagram of speed probe in the embodiment of the present invention；
Fig. 3 is the setting position schematic side view of speed probe in the embodiment of the present invention；
Fig. 4 is the setting position schematic side view of speed probe in the embodiment of the present invention；
Fig. 5 is the setting position schematic side view of speed probe in the embodiment of the present invention.
Embodiment
The embodiment of the present application provides a kind of impeller system, for ensureing the detection performance of speed probe.
A kind of impeller system is provided in the embodiment of the present invention, refering to Figure 1, the structure that Fig. 1 is impeller system is shown
It is intended to.The impeller system includes impeller 10, shaft 11, stent 12, speed probe 13 and housing 14；Shaft 11, stent 12, turn
Fast sensor 13 may be contained within the housing 14.
The stent 12 is fixed on the housing 14, and stent 12 is used to fix the speed probe 13.Optionally, it is described
The side of impeller is provided with speed probe, and the quantity of the speed probe does not limit, for example, the quantity of the speed probe can
Think 1, or two.
The impeller 10 is rotated around the shaft.
Incorporated by reference to shown in 2, Fig. 2 is the schematic diagram of speed probe in the embodiment of the present invention.
The speed probe device 13 includes shell 201, is provided with sensor in the 202, shell 201 of popping one's head in, according to biography
The difference of sensor type, the probe 202 have different designs, if such as the sensor of setting is photoelectric transfer in the shell
Sensor, then 202 front ends of the probe be provided with light transmission piece, the edge of the light transmission piece is tightly connected with probe 202, the shell 201
For stainless steel outer cover, or in the outer surface of shell 201 carry out plastic-spraying.Plastic-spraying was carried out in the shell 201 of speed probe 13
Or the shell 201 is fabricated to stainless steel outer cover, sensor seal is very good, can cause under the higher environment of corrosivity,
As moist, sour environment will not impact sensor, sensor is avoided to be damaged.
Speed probe 2013 is fixed on the stent 12 by clamping nut 203, and positioned at the side of the impeller
Side, the detecting head of the speed probe 20 are more than 5 millimeters apart from the detecting distance of impeller.
For impeller during rotation, speed probe is used for the rotating speed for detecting impeller.In the embodiment of the present application, the rotating speed
The detecting distance of sensor is more than 5mm, and in the case of unit impeller produces certain amplitude of fluctuation, which is less than 5mm, avoids
Impeller sensing device surface produces abrasion.
Optionally, the detecting distance is 8 millimeters.
In a kind of possible implementation, it is uniformly arranged on the ring flange of the impeller and is useful for sensor detection rotating speed
Through hole.Alternatively, in alternatively possible implementation, which is provided with the seam for sensor detection rotating speed
Gap.
The probing head can realize the function of measurement rotating speed for different types of sensor.
, can in order to improve detection performance, it is necessary to select the higher sensor of reliability and stability as speed probe
Referring to sensor under set operating condition by property can work normally, stability refer to the characteristic index of sensor not with the time with
The change of environment and change.
The higher sensor of following several reliability and stability of selection is passed as the rotating speed in the embodiment of the present invention
Sensor.
In a kind of possible implementation, the sensor is photoelectric sensor.Utilize the diffusing reflection principle of light, photoelectricity
Sensor produces pulse-modulated signal, is reflected through impeller, if the reflected light of receiver exceedes the threshold value of setting, exports high electricity
Ordinary mail number, if being not received by reflected light, i.e. illumination is mapped to the through hole of impeller, or at the gap of sawtooth, the letter of reception
It is number weaker, then export low level signal.Whenever the light beam of the inswept photoelectric sensor of impeller, sensor will export a pulse letter
Number, microcontroller is according to the input pulse number in certain time at this time, you can estimates the rotating speed of impeller.
In alternatively possible implementation, the sensor is capacitance sensor.Capacitance type sensor has area change
Two kinds of change type and media variations type.What area change type capacitance speed probe was connected by two pieces of fixed metal plates and with rotation axis
Movable metallic plate is formed, and movable metallic plate is in the position of capacitance maximum, and then capacitance is in most when shaft rotates 150 degree
Small position, the mechanical periodicity speed of capacitance is rotating speed, by continuous current excitation, it is ac-excited and with variable capacitance form shake
Swing the measuring signal that the modes such as the tank of device can obtain rotating speed；Two fixed plate electrodes of the media variations type in capacitor
Between embedded one piece of high-k movable platen, movable dielectric-slab is connected with rotation axis, with the rotation of rotation axis, capacitor
So as to cause the cyclically-varying of capacitance, rate of change is turning for rotation axis for dielectric constant generating period change between plate
Speed.
In alternatively possible implementation, the sensor is hall-effect speed sensor.Hall-type revolution speed sensing
Device is small enclosed speed probe.Hall effect is shown as when electric current passes through conductor perpendicular to external magnetic field, in conductor
There is electrical potential difference between magnetic field and two end faces of current direction.Hall-effect speed sensor is by Hall element and magnet steel
Form, magnet steel is fixed on rotor, rotated with shaft, in Hall element is fixed on a certain distance from magnet steel, is directed at magnet steel.When turn
When son rotates, alternately changing magnetic field will act on Hall element (semi-conducting material), and Hall voltage produces pulse letter immediately
Number.According to the i.e. detectable rotating speed of caused pulse number.Hall-effect speed sensor has small, simple in structure, oncontacting
Point, service life length, reliability is high, and frequency characteristic is good, and use temperature range is wide, the advantages that can continuously measuring, while not light
The influence of the factors such as line, atmospheric environment, temperature, humidity and vibration, can preferably meet that wind-power electricity generation monitors systematic difference
Demand.
Optionally, the sensor is Hall current sensor.The effect of Hall current sensor is by high current signal
Be converted to small voltage, the current signal that the collection of canal card is adopted for data.Due to wind generator system, often to run on comparison severe
Environment in, therefore it is required that current sensor is still able to keep excellent characteristic in different environment.And Hall current passes
Sensor has a sound construction, small, light-weight, long lifespan, easy for installation, small power consumption, and frequency is high, vibration resistance, be not afraid of dust,
The advantages that pollution or corrosion of greasy dirt, steam and salt fog etc., can meet the monitoring requirements of wind-power electricity generation.
Optionally, as shown in fig.3, Fig. 3 is the setting position schematic side view of speed probe.The two of the impeller 10
Side is respectively arranged with two speed probes 13, and speed probe 13 is fixed by stent 12.
Optionally, as shown in fig.4, Fig. 4 is the setting position schematic side view of speed probe.
Described two speed probes 13 are symmetrically disposed on the position of impeller 10 on the lower.Speed probe 13 passes through stent 12
It is fixed.
Optionally, as shown in fig.5, Fig. 5 is the setting position schematic side view of speed probe.
One in two speed probes 13 is arranged at the position of impeller 10 on the lower, and it is top that another is arranged at impeller 10
Position.
In the embodiment of the present application, more accurately measured by setting two sensors to realize, avoid a sensor degradation,
Or the measurement result of varying environment lower sensor produces error, which can be different types of sensor, example
Such as, one of sensor is hall sensor, another is photoelectric sensor.
The above, above example is only to illustrate the technical solution of the application, rather than its limitations；Although with reference to before
Embodiment is stated the application is described in detail, it will be understood by those of ordinary skill in the art that：It still can be to preceding
State the technical solution described in each embodiment to modify, or equivalent substitution is carried out to which part technical characteristic；And these
Modification is replaced, and the essence of appropriate technical solution is departed from the spirit and scope of each embodiment technical solution of the application.
Claims (10)
- A kind of 1. impeller system, it is characterised in that including：Impeller, shaft, stent, speed probe and housing, the shaft, the stent, the speed probe may be contained within In the housing；The impeller is rotated around the shaft；The stent is fixed on the housing；The speed probe is fixed by the stent, and positioned at the side of the impeller, the detection of the speed probe Distance is more than 5 millimeters.
- 2. impeller system according to claim 1, it is characterised in that the detecting distance is 8 millimeters.
- 3. impeller system according to claim 1, it is characterised in that be uniformly arranged and be useful on the ring flange of the impeller Sensor detects the through hole of rotating speed.
- 4. impeller system according to claim 1, it is characterised in that the speed probe device includes shell, probe, institute State and sensor is provided with shell；The shell is stainless steel outer cover, alternatively, the outer surface of the shell has plastic-spraying.
- 5. impeller system according to claim 1, it is characterised in that the speed probe is photoelectric sensor.
- 6. impeller system according to claim 1, it is characterised in that the speed probe is capacitance sensor.
- 7. impeller system according to claim 1, it is characterised in that the speed probe is Hall-type revolution speed sensing Device.
- 8. impeller system according to claim 1, it is characterised in that the both sides of the impeller are respectively arranged with two rotating speeds Sensor.
- 9. impeller system according to claim 1, it is characterised in that described two speed probes are symmetrically disposed on impeller Position on the lower.
- 10. impeller system according to claim 1 a, it is characterised in that setting in described two speed probes In the position of impeller on the lower, another is arranged at the top position of impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711499856.8A CN108019314A (en) | 2017-12-29 | 2017-12-29 | A kind of impeller system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711499856.8A CN108019314A (en) | 2017-12-29 | 2017-12-29 | A kind of impeller system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108019314A true CN108019314A (en) | 2018-05-11 |
Family
ID=62071208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711499856.8A Pending CN108019314A (en) | 2017-12-29 | 2017-12-29 | A kind of impeller system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108019314A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080223684A1 (en) * | 2007-03-15 | 2008-09-18 | Duffey Christopher K | System for generating constant speed output from variable speed input |
| CN201687667U (en) * | 2010-04-19 | 2010-12-29 | 远见风能(江阴)有限公司 | Megawatt wind generating set speed measuring device |
| US20110238371A1 (en) * | 2010-03-25 | 2011-09-29 | Repower Systems Ag | Method for braking state monitoring and wind energy installation for carrying out the method |
| CN103670923A (en) * | 2012-08-16 | 2014-03-26 | 通用电气公司 | System and method for braking a wind turbine rotor at an overspeed condition |
| CN103967721A (en) * | 2014-05-23 | 2014-08-06 | 张东升 | Wind generating set |
| CN203978715U (en) * | 2013-10-17 | 2014-12-03 | 华仪风能有限公司 | A kind of wind power generating set wheel speed supervisory system |
| CN104728054A (en) * | 2013-12-23 | 2015-06-24 | 罗伯特·博世有限公司 | Method For Determining Rotational Angle Position And/or Rotational Speed |
| CN207777063U (en) * | 2017-12-29 | 2018-08-28 | 华润电力风能（阳江）有限公司 | A kind of impeller system |
-
2017
- 2017-12-29 CN CN201711499856.8A patent/CN108019314A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080223684A1 (en) * | 2007-03-15 | 2008-09-18 | Duffey Christopher K | System for generating constant speed output from variable speed input |
| US20110238371A1 (en) * | 2010-03-25 | 2011-09-29 | Repower Systems Ag | Method for braking state monitoring and wind energy installation for carrying out the method |
| CN201687667U (en) * | 2010-04-19 | 2010-12-29 | 远见风能(江阴)有限公司 | Megawatt wind generating set speed measuring device |
| CN103670923A (en) * | 2012-08-16 | 2014-03-26 | 通用电气公司 | System and method for braking a wind turbine rotor at an overspeed condition |
| CN203978715U (en) * | 2013-10-17 | 2014-12-03 | 华仪风能有限公司 | A kind of wind power generating set wheel speed supervisory system |
| CN104728054A (en) * | 2013-12-23 | 2015-06-24 | 罗伯特·博世有限公司 | Method For Determining Rotational Angle Position And/or Rotational Speed |
| CN103967721A (en) * | 2014-05-23 | 2014-08-06 | 张东升 | Wind generating set |
| CN207777063U (en) * | 2017-12-29 | 2018-08-28 | 华润电力风能（阳江）有限公司 | A kind of impeller system |
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