CN109931233A - A kind of wind power generating set hot blast deicing system safety guard and method - Google Patents
A kind of wind power generating set hot blast deicing system safety guard and method Download PDFInfo
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- CN109931233A CN109931233A CN201910295122.0A CN201910295122A CN109931233A CN 109931233 A CN109931233 A CN 109931233A CN 201910295122 A CN201910295122 A CN 201910295122A CN 109931233 A CN109931233 A CN 109931233A
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- deicing system
- heater
- air blower
- detection unit
- crashworthy plate
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- 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
Abstract
The invention discloses a kind of wind power generating set hot blast deicing system safety guard and method, solve the problems, such as that wind-power electricity generation group deicing system does not have safety guard in the prior art.Deicing system includes air blower, heater and ventilation duct; air blower and heater are located at blade web lower part and are fixed by heated holder; air blower is connected to heater; heater is connected to ventilation duct; safety guard includes: fault data detection unit, casualty data detection unit, safety protection control cabinet; the information for obtaining fault data detection unit and casualty data detection unit, the corresponding protection act of execution when judging that deicing system breaks down or is detached from accident.The present invention detects the failure and case accident of deicing system, protects deicing system, prevents harm from increasing, is effectively preferably minimized loss.Corresponding protection act is carried out when there is accident, protects the component of deicing system, while being also prevented from disengaging component and being caused secondary injury.
Description
Technical field
The present invention relates to technical field of wind power generation, pacify more particularly, to a kind of wind power generating set hot blast deicing system
Full protection device.
Background technique
Wind-power electricity generation is the faster renewable energy of current development, since Global climate change is aggravated, extreme day
Gas becomes further frequently, and especially increasing for freezing weather can cause large effect to wind-power electricity generation.Due to freezing weather, wind
The icing of power machine blade will lead to the reduction of blade aerodynamic characteristic, and a large amount of generated energy is caused to lose.In addition, blade icing also results in
Wind wheel is uneven, endangers unit safety.Therefore, the research of wind power generating set deicing system becomes important research direction.
On the whole, wind power generating set deicing system is a relatively advanced machine set technology, most of grinding about deicing system
It is all related to deicing system design and performance optimization for studying carefully, currently without the phase about deicing system safety guard and method
Close technical data.Existing the relevant technologies are also protected only with respect to wind generator set blade, about blade vibration and blade
Some monitoring and protectings of damage, it is impossible to meet the safety requirements for the wind power generating set for installing hot blast deicing system additional.
Summary of the invention
The present invention mainly solves the problems, such as that wind-power electricity generation group deicing system does not have safety guard in the prior art, mentions
A kind of wind power generating set hot blast deicing system safety guard and method are supplied.
Above-mentioned technical problem of the invention is mainly to be addressed by following technical proposals: a kind of wind power generating set
Hot blast deicing system safety guard, deicing system include air blower, heater and ventilation duct, air blower and heater position
It is fixed in blade web lower part and by heated holder, air blower is connected to heater, and heater is connected to ventilation duct, comprising:
Fault data detection unit detects deicing system device temperature and air velocity；
Whether casualty data detection unit, detection air blower, heater shift or fall off；
Safety protection control unit obtains the information of fault data detection unit and casualty data detection unit, is judging deicing
System executes corresponding protection act when breaking down or be detached from accident.
The present invention can failure to deicing system and case accident detect, the detection of fault data detection unit removes
Ice internal system whether there is failure, and corresponding protection act is carried out when breaking down, protects deicing system, prevents harm from adding
Greatly, effectively loss is preferably minimized.Casualty data detection unit detection deicing system whether there is the accident to fall off, thing is occurring
Therefore when carry out corresponding protection act, protect the component of deicing system, while being also prevented from and being detached from component and cause secondary injury.
As a preferred embodiment, the fault data detection unit includes overtemperature protector, Overtemp. protector and air
Current meter；
Overtemperature protector is arranged on the motor of air blower, acquires blower motor temperature；
Overtemp. protector, setting on the heaters, acquire heater body temperature；
Air velocity device is arranged in ventilation duct, detects air mass flow；
Safety protection control unit detect overtemperature protector, Overtemp. protector, there are different for any data in air velocity device
Often, it executes deicing system and stops heating.
Overtemperature protector acquires motor temperature in air blower actual moving process in this programme, in the reality of motor
Running current is less than rated value, but due to improper ventilation, the reasons such as environment temperature height have reached degree of danger, passed through at this time
Over-temperature protection device detects that abnormal conditions are cut off the power and protects to air blower.Safety protection control unit is provided with excess temperature
Threshold value, temperature value setting can be adjusted according to demand, and safety protection control unit is judged according to excess temperature threshold value.It is super
Warm protector to heater run in device temperature check, cut off the power progress when temperature is more than specified average temperature value
Protection, safety protection control unit are provided with overtemperature threshold value, and temperature value setting can also be adjusted according to demand.Air stream
Fast device is arranged in ventilation duct, and is arranged in apart from heater outlet greater than the position at 3m, and detection steady flow region leads to
Air mass flow in air hose, safety protection control unit is equipped with highest and lowest flow threshold, by being compared with flow threshold,
Judge air blower with the presence or absence of problem.
As a preferred embodiment, the casualty data detection unit includes the anticollision being arranged around air blower, heater
Plate is provided with pressure sensor in Crashworthy plate, and pressure sensor is connect with safety protection control unit；
Safety protection control unit is detecting that the variation of pressure value persistent anomaly is more than threshold value, executes Wind turbines shutdown and deicing
System stops heating.Crashworthy plate is set around air blower, heater, pressure sensor is provided in Crashworthy plate, if deicing system
Equipment transmitting falls off, and equipment can strike on Crashworthy plate, then judges whether equipment falls off by detecting pressure value, safeguard protection control
Unit processed is provided with pressure threshold, and several pressure value persistent anomaly variations are more than pressure threshold, then carries out corresponding protection act.Together
When Crashworthy plate can prevent equipment from falling off after caused by secondary injury.
As a preferred embodiment, the Crashworthy plate includes,
Leading edge Crashworthy plate is arranged between the blade inlet edge of air blower and heater far from blade root side and blade web；
Blade web is arranged between the blade web and trailing edge of blade root side in rear Crashworthy plate；
Blade root Crashworthy plate, is positioned close between the leading edge of blade root and rear；
Leading edge Crashworthy plate, rear Crashworthy plate, blade root Crashworthy plate and blade web, blade inlet edge, trailing edge collectively form anticollision
Chamber, air blower and heater are located at intracavitary in anticollision, and ventilation duct is pierced by anticollision chamber, and leading edge Crashworthy plate, rear Crashworthy plate, blade root are anti-
It hits and is respectively arranged with the pressure sensor on plate.According to the three pieces of anticollisions of air blower and heater position design in this programme
Plate is separately positioned between leading edge and web, between rear and web, between leading edge and rear, constitutes an anticollision chamber in this way
Air blower and heater are wrapped in the inside, equipment, which is fallen off, will fall on this three pieces of Crashworthy plates, by detecting pressure
To determine whether fall off, the equipment that also prevents falling off causes secondary injury.
As a preferred embodiment, the casualty data detection unit includes removal sensor, and removal sensor setting exists
In heated holder, safety protection control unit is detecting the disconnection of removal sensor electric signal, executes Wind turbines and shuts down and remove
Ice system stops heating.Removal sensor is fixed in heated holder in this programme, and the data line of removal sensor is connected to peace
In full guard control unit, the data line be arranged to heated holder fall off data line disconnection state, it can by data wire length
Degree, which is arranged to exactly removal sensor, can break to the distance of the fast protection control unit of safety if heated holder is fallen off
The data line of removal sensor is opened, safety protection control unit is connect with removal sensor, can then detect the electricity of connection at this time
Signal disconnects, then is made into corresponding protection act.
In addition the heated holder two sides are provided with several spud piles, anti-fall off chain, anti-fall off chain is provided on spud pile
It is connected in heated holder.Anti-fall off chain and spud pile are set, are attached heated holder and spud pile by anti-fall off chain, in this way
Heated holder can also be hung by anti-fall off chain when heated holder is fallen off, prevent heated holder from falling and cause secondary wound
Evil.
As a preferred embodiment, the casualty data detection unit includes laser range finder and laser ranging reflector,
Blade root Crashworthy plate is arranged in towards on the side of air blower in the laser range finder, and the laser ranging reflector is arranged in air blast
The position of laser range finder is corresponded on machine, safety protection control unit is detecting that blower position transfinites or position signal disappears
It loses, executes Wind turbines shutdown and deicing system stops heating.This programme laser range finder is opposite with laser ranging reflector to be set
It sets, for detecting the position of air blower relative vane, laser range finder detects it and arrives the distance between air blower, if air blower is sent out
Raw to loosen or fall off, laser range finder can detect that distance changes or position signal disappears.Laser range finder and safety are protected
Control unit connection is protected, sends a signal to safety protection control unit, safety protection control unit judges position is transfinited or roused
Blower is fallen, then executes Wind turbines shutdown and deicing system stops heating.
Therefore, the invention has the advantages that
1. the failure and case accident of pair deicing system detect, it is inside fault data detection unit detection deicing system
No there are failures, and corresponding protection act is carried out when breaking down, protects deicing system, prevents harm from increasing, effectively will damage
Mistake is preferably minimized.Casualty data detection unit detection deicing system whether there is the accident that falls off, carry out when there is accident pair
Protection act is answered, the component of deicing system is protected, while being also prevented from disengaging component and causing secondary injury.
2. pair motor temperature, heter temperature and air mass flow detect, exceed threshold value Shi Youan in detection information
Full guard control unit executes deicing system and stops heating, effective protection deicing system.
3. by pressure sensor, removal sensor, laser range finder to the change in location of deicing system equipment, fall off feelings
Condition is detected, and executes Wind turbines shutdown by safety protection control unit when position is transfinited or is fallen off and deicing system stops
Heating, effective protection deicing system.
4. setting spud pile and anti-fall off chain, anti-fall off chain are connected between spud pile and heated protective bracket, heating branch is prevented
Frame falls off, and Crashworthy plate is arranged around air blower and heater, protects deicing system equipment and blade, while preventing equipment from falling off
Caused by secondary injury.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the invention；
Fig. 2 is a kind of control flow schematic diagram of the invention.
1- safety protection control unit 2- blade root Crashworthy plate 3- spud pile 4- anti-fall off chain 5- removal sensor 6- air blast
Machine 7- heater 8- heated holder 9- leading edge Crashworthy plate 10- reinforced support 11- air velocity device 12- ventilation duct 13- leaf
Piece web 14- Overtemp. protector 15- overtemperature protector 16- ranging reflector 17- rear Crashworthy plate 18- laser range finder
19- blade 20- pressure sensor 21- anticollision chamber.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment:
A kind of wind power generating set hot blast deicing system safety guard of the present embodiment, wherein deicing system is arranged in wind-powered electricity generation
On turbines vane 19, deicing system includes deicing control cabinet, air blower 6, heater 7 and ventilation duct 12, air blower and heater
Positioned at 13 lower part of blade web and fixed by heated holder 8, air blower is connected to heater, and heater is connected to ventilation duct,
Deicing control cabinet is mounted at blade root, is connected respectively with air blower, heater control.
Safety guard includes fault data detection unit, casualty data detection unit and safety protection control unit 1；
Fault data detection unit communicates information to safety protection control for detecting deicing system device temperature and air velocity
Unit；Whether casualty data detection unit detection air blower, heater shift or fall off, and communicate information to safety protection control
Unit；Safety protection control unit judges that whether deicing system breaks down or case accident, is occurring according to the information of acquisition
Corresponding protection act is executed when failure or case accident.
Specifically, safety protection control unit is communicated with Wind turbines master control, can by CANopen, Modbus,
The communication protocols such as RS-232, RS-485 are communicated, and safety protection control unit has a shell, shell using stainless steel or
High strength carbon steel is made, thickness 2mm or more, outside the shell on be provided with suspension centre, in order to transport, install and the later period dimension
Shield.Lightning-protection module is installed in safety protection control unit, safety protection control unit is strictly grounded, and prevent thunder and lightning from interfering, and
Safety protection control unit interface carries out wiring connection by waterproof connector or aviation plug.
Fault data detection unit includes overtemperature protector 15, Overtemp. protector 14 and air velocity device 11；Overheat protector
Device is arranged on the motor of air blower, acquires blower motor temperature；Overtemp. protector is arranged on the heaters, acquires heater
Internal temperature；Air velocity device is arranged in ventilation duct, and is located at the position for being greater than 3m apart from heater outlet, detects stationary flow
Air mass flow in the ventilation duct in dynamic region.It is preset with excess temperature threshold value in safety protection control unit, overtemperature threshold value, crosses high flow capacity
Threshold value, too low flow threshold, control cabinet judge overtemperature protector, any data exists in Overtemp. protector and air velocity device
It is abnormal, judge that deicing system failure, careful deicing system stop heating.
Casualty data detection unit includes anticollision detection device, anti-dropout detection device, anti-moving level detection apparatus.
Anticollision detection device includes the Crashworthy plate being arranged around air blower 6, heater 7, and pressure biography is provided in Crashworthy plate
Sensor 20, pressure sensor is connect with safety protection control unit；Specific Crashworthy plate includes leading edge Crashworthy plate, rear Crashworthy plate
With blade root Crashworthy plate.Leading edge Crashworthy plate be arranged in the blade inlet edge of air blower and heater far from blade root side and blade web it
Between；Blade web is arranged between the blade web and trailing edge of blade root side in rear Crashworthy plate；The setting of blade root Crashworthy plate
Between the leading edge and rear close to blade root；Before leading edge Crashworthy plate, rear Crashworthy plate, blade root Crashworthy plate and blade web, blade
Edge, trailing edge collectively form anticollision chamber 21, and air blower and heater are located at intracavitary in anticollision, and ventilation duct is pierced by anticollision chamber, preceding
Edge Crashworthy plate, rear Crashworthy plate are both provided with pressure sensor on blade root Crashworthy plate respectively.If such as air blast of deicing system equipment
Machine, heater are fallen off, and equipment can strike on Crashworthy plate, and the pressure value information that pressure sensor will test is sent to peace
Full guard control unit, safety protection control unit are provided with pressure threshold, and several pressure value persistent anomaly variations are more than pressure
Threshold value then carries out corresponding protection act.In addition secondary injury caused by after setting Crashworthy plate can prevent equipment from falling off.
Anti-dropout detection device includes removal sensor 5, and removal sensor is arranged in heated holder 8, removal sensor
It is connect with safety protection control unit, sends a signal to control cabinet, when heated holder falls off, the power supply line of removal sensor
It will disconnect, then electric signal disconnects, and safety protection control unit is detecting the disconnection of removal sensor electric signal, judges heated holder
It falls off, executes Wind turbines shutdown and deicing system stops heating.In addition to preventing heated holder from falling off and causing secondary wound
Evil, heated holder two sides are provided with several spud piles 3, anti-fall off chain 4 are provided on spud pile, anti-fall off chain is connected to heated holder
On.
Anti-moving level detection apparatus includes laser range finder 18 and laser ranging reflector 16, and laser range finder is arranged in blade root
For Crashworthy plate towards on the side of air blower, the position that laser range finder is corresponded on air blower is arranged in laser ranging reflector, swashs
Optar face laser ranging reflector, when air blower is displaced or is fallen off, the distance of laser range finder detection occurs
Variation or position signal disappear, and safety protection control unit is detecting that blower position transfinites or position signal disappears, judgement
Air blower is displaced or falls off, and executes Wind turbines shutdown and deicing system stops heating.
This implementation further includes a kind of wind power generating set hot blast deicing system method for security protection, comprising:
Step 1 carries out classification acquisition to data；
Step 2 carries out accident judgement and breakdown judge to data respectively；
Step 3 carries out corresponding protection act when detecting accident or failure；
Step 4 feeds back accident or failure.
Workflow as shown in Fig. 2, detailed process includes,
After work starts, data acquisition is carried out, the data of acquisition include casualty data and deicing system fault data, casualty data
Including laser range finder, pressure sensor, removal sensor information, deicing system fault data includes overtemperature protector, super
The information of warm protector, air velocity device.
In terms of accident detection, detection pressure sensor pressure release is more than threshold value, if judging that deicing system equipment is de-
It falls, safety protection control unit executes Wind turbines and shuts down, and deicing system stops heating；It carries out judging that laser detecting apparatus is if not
It is no to detect that position is transfinited or position signal disappears.
Judge whether laser detecting apparatus detects that position is transfinited or position signal disappears, if then judging that air blower falls off,
Safety protection control unit executes Wind turbines and shuts down, and deicing system stops heating；If otherwise carrying out judging that removal sensor is believed
Number whether disconnect, if judging that heated holder falls off, safety protection control unit executes Wind turbines and shuts down, and deicing system stops
Heating；If not enter deicing system whether breakdown judge.
In terms of deicing system fault detection, whether detection air velocity transfinites, including more than maximum flow rate or lower than stream
Fast lower limit stops heating if then judging deicing system failure；The judgement of heter temperature overtemperature is carried out if not.
Judge whether overtemperature stops heating heter temperature if then judging deicing system failure；Motor is carried out if not
Whether excess temperature judges temperature.
Judge whether overtemperature stops heating motor temperature if judging deicing system failure；Enter deicing system if not
Whether breakdown judge.
It is shut down executing Wind turbines, after deicing system stops heating, feeds back and alarm for emergency episode.
After executing deicing system and stopping heating, feed back non-deicing system failure, into deicing system whether breakdown judge.
Deicing system whether breakdown judge during, if then enter accident in terms of detection, adopted if not into data
Collect step, repeats the above process.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Although being used more herein, safety protection control unit, blade root Crashworthy plate, spud pile, anti-fall off chain, fall off biography
The terms such as sensor, but it does not exclude the possibility of using other terms.The use of these items is only for more easily describe
The essence of the invention with explanation；Being construed as any additional limitation is disagreed with spirit of that invention.
Claims (7)
1. a kind of wind power generating set hot blast deicing system safety guard, deicing system include air blower, heater and
Ventilation duct, air blower and heater are located at blade web lower part and are fixed by heated holder, and air blower is connected to heater, is added
Hot device is connected to ventilation duct characterized by comprising
Fault data detection unit detects deicing system device temperature and air velocity；
Whether casualty data detection unit, detection air blower, heater shift or fall off；
Safety protection control unit obtains the information of fault data detection unit and casualty data detection unit, is judging deicing
System executes corresponding protection act when breaking down or be detached from accident.
2. a kind of wind power generating set hot blast deicing system safety guard according to claim 1, it is characterized in that
The fault data detection unit includes overtemperature protector, Overtemp. protector and air velocity device；
Overtemperature protector is arranged on the motor of air blower, acquires blower motor temperature；
Overtemp. protector, setting on the heaters, acquire heater body temperature；
Air velocity device is arranged in ventilation duct, detects air mass flow；
Safety protection control unit detect overtemperature protector, Overtemp. protector, there are different for any data in air velocity device
Often, it executes deicing system and stops heating.
3. a kind of wind power generating set hot blast deicing system safety guard according to claim 1, it is characterized in that
The casualty data detection unit includes the Crashworthy plate being arranged around air blower, heater, is provided with pressure sensing in Crashworthy plate
Device, pressure sensor are connect with safety protection control unit；
Safety protection control unit is detecting that the variation of pressure value persistent anomaly is more than threshold value, executes Wind turbines shutdown and deicing
System stops heating.
4. a kind of wind power generating set hot blast deicing system safety guard according to claim 3, it is characterized in that
The Crashworthy plate includes,
Leading edge Crashworthy plate is arranged between the blade inlet edge of air blower and heater far from blade root side and blade web；
Blade web is arranged between the blade web and trailing edge of blade root side in rear Crashworthy plate；
Blade root Crashworthy plate, is positioned close between the leading edge of blade root and rear；
Leading edge Crashworthy plate, rear Crashworthy plate, blade root Crashworthy plate and blade web, blade inlet edge, trailing edge collectively form anticollision
Chamber, air blower and heater are located at intracavitary in anticollision, and ventilation duct is pierced by anticollision chamber, and leading edge Crashworthy plate, rear Crashworthy plate, blade root are anti-
It hits and is respectively arranged with the pressure sensor on plate.
5. a kind of wind power generating set hot blast deicing system safety guard according to claim 1, it is characterized in that
The casualty data detection unit includes removal sensor, and removal sensor is arranged in heated holder, safety protection control list
Member is detecting the disconnection of removal sensor electric signal, executes Wind turbines shutdown and deicing system stops heating.
6. a kind of wind power generating set hot blast deicing system safety guard according to claim 1, it is characterized in that
The casualty data detection unit includes laser range finder and laser ranging reflector, and the laser range finder setting is anti-in blade root
Plate face is hit on the side of air blower, the position that laser range finder is corresponded on air blower is arranged in the laser ranging reflector,
Safety protection control unit is detecting that blower position transfinites or position signal disappears, and executes Wind turbines shutdown and deicing system
System stops heating.
7. a kind of wind power generating set hot blast deicing system method for security protection, is exclusively used in any one of claim 1-6's
Device, it is characterised in that: include the following steps,
Step 1 carries out classification acquisition to data；
Step 2 carries out accident judgement and breakdown judge to data respectively；
Step 3 carries out corresponding protection act when detecting accident or failure；
Step 4 feeds back accident or failure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910295122.0A CN109931233A (en) | 2019-04-12 | 2019-04-12 | A kind of wind power generating set hot blast deicing system safety guard and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910295122.0A CN109931233A (en) | 2019-04-12 | 2019-04-12 | A kind of wind power generating set hot blast deicing system safety guard and method |
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ID=66989874
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| CN201910295122.0A Pending CN109931233A (en) | 2019-04-12 | 2019-04-12 | A kind of wind power generating set hot blast deicing system safety guard and method |
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| CN111779641A (en) * | 2020-06-12 | 2020-10-16 | 浙江运达风电股份有限公司 | Temperature and wind pressure adjustable hot blast wind turbine generator blade deicing system |
| CN112325926A (en) * | 2020-09-30 | 2021-02-05 | 中船第九设计研究院工程有限公司 | Inverted T-shaped dock gate real-time operation monitoring system |
| CN113102736A (en) * | 2021-03-19 | 2021-07-13 | 广西玉柴机器股份有限公司 | Device for reducing drop of vibration head in detection of rejection rate of core vibration machine |
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Application publication date: 20190625 |
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