CN216518413U - Anti-icing protection device of blade icing monitoring camera of wind turbine generator - Google Patents
Anti-icing protection device of blade icing monitoring camera of wind turbine generator Download PDFInfo
- Publication number
- CN216518413U CN216518413U CN202123176136.2U CN202123176136U CN216518413U CN 216518413 U CN216518413 U CN 216518413U CN 202123176136 U CN202123176136 U CN 202123176136U CN 216518413 U CN216518413 U CN 216518413U
- Authority
- CN
- China
- Prior art keywords
- camera
- icing
- heating panel
- wind turbine
- transparent heating
- 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.)
- Active
Links
Images
Classifications
-
- 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
- Wind Motors (AREA)
Abstract
An anti-icing protection device for an icing monitoring camera of a blade of a wind turbine generator belongs to the technical field of wind power generation. The safety cover comprises a cylindrical safety cover, the two ends of the safety cover are respectively provided with a heat insulation back plate and a transparent heating panel, the transparent heating panel is close to the inner wall of the tower barrel, the bottom of the cylinder wall of the safety cover is provided with an exhaust hole, the center of the heat insulation back plate is provided with a round hole for installing a camera, the camera is arranged in the safety cover, the lens end is close to the transparent heating panel, the other end of the camera extends out of the round hole, and the transparent heating panel is connected with a heating device. The device has simple structure and small volume, and does not influence the normal operation of other equipment; can prevent effectively that the camera from being sheltered from by frost at low temperature weather, the dewfall is avoided to the high humidity environment, has good application prospect.
Description
Technical Field
The utility model belongs to the technical field of wind power generation, and particularly relates to an anti-icing protection device for a blade icing monitoring camera of a wind turbine generator.
Background
In areas with low wind speed and in parts with high wind speed, there are problems of frost formation and icing in winter and spring. When a large amount of ice is accumulated on the surface of the fan blade, the unbalanced load of the unit is increased due to different ice loads on each blade, so that the service life of parts of the fan is shortened, and even the accidents of blade fracture and tower collapse are caused; the original pneumatic appearance of the blade is changed, the wind energy utilization coefficient of the wind turbine is reduced, and the wind turbine cannot be started normally in serious cases; after freezing, the fan continues to operate, and the thrown ice blocks may damage the fan and people or objects nearby.
An icing monitoring camera of the wind power plant monitors the icing condition of the surface of a fan blade in real time, and the deicing device is started after the icing monitoring camera is processed by a computer or manually analyzed. When the position of the fan has a meteorological condition for generating ice coating, the blades, the unit and the lens of the monitoring camera are all covered by the ice, so that the ice coating detection function is disabled.
Disclosure of Invention
Aiming at the technical problems, the utility model provides an anti-icing protection device for a blade icing monitoring camera of a wind turbine generator, which can prevent the camera from being covered by ice and shielded in low-temperature weather and ensure the normal monitoring function of a video device.
The purpose of the utility model is realized by the following technical scheme:
the utility model discloses an anti-icing protection device for a blade icing monitoring camera of a wind turbine generator, which comprises a cylindrical protection cover, wherein a heat insulation back plate and a transparent heating panel are respectively arranged at two ends of the protection cover, the transparent heating panel is close to the inner wall of a tower, an exhaust hole is formed in the bottom of the cylindrical wall of the protection cover, a round hole for mounting the camera is formed in the center of the heat insulation back plate, the camera is arranged in the protection cover, the lens end is close to the transparent heating panel, the other end of the lens end extends out of the round hole, and the transparent heating panel is connected with a heating device.
Further, the camera is hermetically mounted with the round hole of the heat insulation back plate.
Further, the cylinder wall of the protection cover is provided with a temperature sensor I relative to the top of the exhaust hole, the temperature in the protection cover is collected, and the temperature sensor I is connected with a heating device.
Further, still set up temperature sensor II outside the tower section of thick bamboo, gather atmospheric temperature, temperature sensor II connects heating device respectively.
Further, heating device is including setting up at the outside photovoltaic board of a tower section of thick bamboo, setting up battery and the control panel on the inside supporting platform of a tower section of thick bamboo, the battery is connected to the photovoltaic board output, is the control panel power supply by the battery, and transparent heating panel, temperature sensor I and temperature sensor II are connected respectively to the control panel.
Furthermore, the transparent heating panel is an ITO scratch-proof transparent electric heating sheet.
The utility model has the beneficial effects that:
1. according to the utility model, the camera protective cover is arranged, so that the lens end is arranged in the protective cover and is close to the transparent heating panel of the protective cover, the heat insulation back plate capable of extending out of the camera is arranged at the other end of the protective cover, and the transparent heating panel is connected with the heating device for heating, so that the temperature in the protective cover meets the working requirement of the camera, and the frost can be melted. The structure is simple, the power consumption of the heating device is low, no moving part is provided, and the system is stable and reliable.
2. The camera is hermetically arranged with the round hole of the heat insulation back plate, so that the temperature in the protective cover is ensured, and meanwhile, the interior of the protective cover is only communicated with the outside through the exhaust hole, and cold air in the protective cover is exhausted.
3. The heating device is powered by a photovoltaic panel, atmospheric temperature control is acquired through a temperature sensor I arranged in the protective cover and a temperature sensor II outside the tower barrel, and the transparent heating panel is controlled to heat through the control panel, so that the temperature in the protective cover is stable.
4. The transparent heating panel adopts the ITO anti-scratch transparent electric heating sheet, when the transparent heating panel works, the temperature of the panel is kept higher than the atmospheric temperature, the air in the cover can be heated, the density of the hot air close to the transparent heating panel is low, the hot air is firstly gathered in the top space in the cover, after the air in the cover is subjected to thermal expansion, the cold air is exhausted from the exhaust hole below, and finally stable temperature field distribution is formed in the closed heat insulation space; the temperature in the cover is higher than the external temperature, and the water vapor condensation can be avoided under the high-humidity environment.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a view of the transparent heating panel side of the cylindrical protective cover of the present invention.
Fig. 3 is a schematic diagram of the control panel of the present invention.
In the figure: 1. a tower drum; 2. a photovoltaic panel; 3. a storage battery; 4. a control panel; 5. a support platform; 6. a cylindrical boot housing; 7. a thermally insulating backing sheet; 8. a camera; 9. a camera connecting wire; 10. an exhaust hole; 11. a transparent heating panel; 12. a temperature sensor I; 13. a transparent heating panel lead; 14. and a temperature sensor II.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1: as shown in fig. 1 and 2, the present invention is a protection device for preventing the icing of a camera 8 installed in a tower of a wind turbine generator for monitoring the condition of blades, the camera 8 for monitoring the condition of blades is installed at a suitable height of the tower 1 of the wind turbine generator, a connection line 9 is connected to a monitoring computer, the camera 8 shoots images at a set frequency and stores the images in the computer, an operator remotely operates the computer, image features are extracted based on a recognition algorithm, and whether a blade deicing system is started or not is determined by comparison and analysis.
The utility model discloses an anti-icing protection device for a blade icing monitoring camera of a wind turbine generator, which comprises a cylindrical protection cover 6, wherein two ends of the protection cover 6 are respectively provided with a heat insulation back plate 7 and a transparent heating panel 11, the transparent heating panel 11 is close to the inner wall of a tower, the bottom of the cylinder wall of the protection cover is provided with an exhaust hole 10, the center of the heat insulation back plate 7 is provided with a round hole for mounting a camera 8, the camera is arranged in the protection cover, the lens end is close to the transparent heating panel 11, the other end extends out of the round hole, and the transparent heating panel 11 is connected with a heating device. Connect transparent heating panel 11 through heating device and be its heating, the cold air in the safety cover 6 is discharged through exhaust hole 10, guarantees that the temperature in the safety cover satisfies the operating requirement of camera, and the air current is extremely slow when inside and outside gas exchange, and exhaust hole 10 opening is downward, and the dust can not fall into safety cover 6 in, and protection monitoring camera 8 avoids being sheltered from by the frost.
The heating device comprises a photovoltaic panel 2 arranged outside a tower barrel 1, a storage battery 3 arranged on a supporting platform 5 inside the tower barrel 1 and a control panel 4, wherein the output end of the photovoltaic panel is connected with the storage battery 3, the storage battery 3 supplies power for the control panel 4, and the control panel 4 is connected with a transparent heating panel 11. Absorb the sunlight through photovoltaic board 2, change light energy into electric energy storage in battery 3, for control panel 4 power supply, through control panel 4 heating transparent heating panel 11 to guarantee that the temperature in the safety cover 6 satisfies the operating requirement.
The control board 4 is an existing outsourcing component, and as shown in fig. 3, comprises a triangular wave generator, a differential amplifier, a comparator, a MOSFET and peripheral components. The input end of the differential amplifier is respectively connected with a hot end sensor I12 and a cold end sensor II 14, the sensors are NTC thermistors with negative temperature coefficients, and when the temperature of the hot end sensor rises or the temperature of the cold end sensor falls, the voltage of the output end of the differential amplifier is reduced; the output end of the differential amplifier is connected to the input end of the comparator, and the output end of the triangular wave generator is connected to the other input end of the comparator; when the voltage at the output end of the differential amplifier is reduced, the duty ratio of the square wave output by the comparator is reduced, and the conduction time of the MOSFET is reduced, so that the heating power of the transparent heating panel is reduced, and a negative feedback loop is formed. When the temperature of the hot end sensor is higher than that of the cold end sensor by 5 ℃, the output current of the MOSFET just maintains the balance between the heating of the transparent heating panel and the heat dissipation of the protective cover.
And (5) freezing prevention at low temperature. The upper end of a voltage stabilizing tube DW of the control board provides stable voltage, and after voltage is divided by a voltage dividing resistor W, reference voltage Vref is obtained at the position of a tap, namely the left end of a diode D1; when the temperature of the cold end is higher than 15 ℃, the diode D1 is cut off, the diode D2 is conducted, and the temperature of the transparent heating panel changes along with the temperature of the cold end; when the temperature of the cold-end sensor II 14 is lower than 15 ℃, the diode D1 is conducted, the diode D2 is cut off, the potential of the right end of the diode D1 is clamped to the voltage Vref, and at the moment, the negative feedback loop controls the temperature of the transparent heating panel to be constant 20 ℃.
The heat insulation back plate 7 adopts the existing purchased hydrophobic aerogel felt. The aerogel felt is a flexible heat-insulating material which is synthesized by taking silica aerogel as a main material, compounding the silica aerogel in reinforcing fibers such as glass fibers and pre-oxidized fibers and adopting a special process. The thermal insulation material has the characteristics of softness, easy cutting, low density, inorganic fire resistance, overall hydrophobicity, environmental friendliness and the like, and is mainly used for thermal insulation in the fields of industrial pipelines, industrial furnace bodies, power plants, escape capsules, warship bulkheads, detachable thermal insulation sleeves and the like. The heat insulation effect is 2-5 times of that of the traditional heat insulation material, the service life of the theoretical high-temperature pipeline measured according to an Arrhenius experiment is close to 20 years, and the theoretical high-temperature pipeline has fireproof performance from B1 level to A level.
In this embodiment, the transparent heating panel 11 is an ITO scratch-resistant transparent electric heating sheet. The ITO film is a novel electronic film, is transparent in a visible light range, has strong reflection to infrared light and lower resistivity, can uniformly heat glass when being electrified, is used for defrosting and deicing large-caliber telescopes sealed by transmission and front windshield glass of an airplane cockpit, is used as a transparent electrode, and is widely applied to products such as solar cells, touch screens, antistatic films and the like.
Example 2: the difference between this example and example 1 is: in this embodiment, the camera 8 is hermetically mounted in the circular hole of the heat insulation back plate 7. The cylinder wall of the protection cover is further provided with a temperature sensor I12 relative to the top of the exhaust hole 10, the temperature in the protection cover is collected, and the temperature sensor I12 is connected with a control panel 4 of the heating device. The outer side of the tower barrel 1 is further provided with a temperature sensor II 14 for collecting the atmospheric temperature, and the temperature sensor II 14 is connected with the control panel 4 of the heating device.
In this embodiment, heating device is including setting up photovoltaic board 2 outside a tower section of thick bamboo 1, setting up battery 3 and control panel 4 on a supporting platform 5 in a tower section of thick bamboo 1, photovoltaic board output is connected battery 3, is the power supply of control panel 4 by battery 3, and transparent heating panel 11, temperature sensor I12 and temperature sensor II 14 are connected respectively to control panel 4. The temperature in the protective cover 6 is controlled by a negative feedback loop formed by the temperature sensor I12, the control panel 4 and the transparent heating panel 11. The control panel 4 is an existing outsourcing part, has small volume and can be generally arranged at any position close to the protective cover 6.
When the protection cover 6 is installed, the temperature sensor I12 is positioned right above the cylinder wall of the protection cover 6, the exhaust hole 10 is positioned right below, and the exhaust hole 10 is the only passage between the inner space and the outer part of the protection cover 6; the temperature of the transparent heating panel 11 is higher than the ambient temperature when working, the density of hot air is small, the hot air starts to gather in the top space in the protective cover 6 and enters a negative feedback loop after being collected by the temperature sensor I12, and overheating is avoided; the volume increase after the air is heated in the safety cover 6, the relatively colder air is discharged from the exhaust hole 10 of below to form stable temperature field distribution in the safety cover 6, and the temperature is higher than ambient temperature in the safety cover, also can not appear steam condensation under humid environment.
The inner space and the outside of the protective cover 6 only have the sole path of the exhaust holes 10, the air flow is extremely slow when the air inside and outside is exchanged, the openings of the exhaust holes 10 are downward, and dust cannot fall into the protective cover 6.
The temperature sensor II 14 outside the tower barrel 1 collects the atmospheric temperature as a reference signal of the control panel 4, the temperature sensor I12 in the protective cover 6 collects the temperature of the space in the protective cover, the control panel 4 controls the current flowing through the transparent heating panel 11 to enable the transparent heating panel to generate heat, and the temperature in the protective cover 6 reaches a set value through a negative feedback loop formed by the temperature sensor I12, the control panel 4 and the transparent heating panel 11. When the temperature is higher than 15 ℃, the temperature in the protective cover 6 is higher than the temperature by 5 ℃, so that the influence of water vapor condensation in a humid environment on the normal operation of the camera 8 is avoided; when the temperature is lower than 15 ℃, the temperature in the cover is kept constant at 20 ℃, and frost can be melted.
When the transparent heating panel 11 works, the temperature of the panel can be kept to be higher than the atmospheric temperature, air in the protective cover can be heated, the density of hot air close to the transparent heating panel 11 is low, the hot air is firstly gathered in the top space in the cover, cold air is exhausted from the exhaust holes 10 below after the air in the cover is subjected to thermal expansion, and finally stable temperature field distribution is formed in a closed heat insulation space; the temperature in the cover is higher than the external temperature, and the water vapor condensation can be avoided under the high-humidity environment.
The methods described above are part of embodiments of the present invention. The utility model can also adopt the protective cover, the transparent heating panel and the heat insulation back plate with different section shapes and the transparent heating panel with different implementation schemes. Although some terms are used in the present invention, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model and are to be construed as any additional limitation which is not in accordance with the spirit of the utility model. The foregoing is merely an illustration of the present invention for the purpose of providing an easy understanding and is not intended to limit the present invention to the particular embodiments disclosed herein, and any technical extensions or innovations made herein are protected by the present invention.
Claims (6)
1. The utility model provides a wind turbine generator system blade icing monitoring camera anti-icing protection device which characterized in that: protective cover (6) including the cylinder, the protective cover both ends set up thermal-insulated backplate (7) and transparent heating panel (11) respectively, transparent heating panel (11) are close to a tower section of thick bamboo inner wall, open exhaust hole (10) bottom the protective cover cylinder wall, open the round hole that has installation camera (8) at thermal-insulated backplate (7) center, in the protective cover was arranged in to the camera, the camera lens end was close to transparent heating panel (11), and this round hole is stretched out to the other end, and heating device is connected in transparent heating panel (11).
2. The anti-icing protection device for the blade icing monitoring camera of the wind turbine generator set according to claim 1, characterized in that: the camera (8) is hermetically mounted with the round hole of the heat insulation back plate (7).
3. The anti-icing protection device for the blade icing monitoring camera of the wind turbine generator set according to claim 1, characterized in that: the cylinder wall of the protection cover is further provided with a temperature sensor I (12) relative to the top of the exhaust hole (10), the temperature in the protection cover is collected, and the temperature sensor I (12) is connected with a heating device.
4. The anti-icing protection device for the blade icing monitoring camera of the wind turbine generator set according to claim 1, characterized in that: the outer side of the tower tube (1) is further provided with a temperature sensor II (14) for collecting the atmospheric temperature, and the temperature sensor II (14) is respectively connected with a heating device.
5. The anti-icing protection device for the blade icing monitoring camera of the wind turbine generator set according to any one of claims 1 to 4, characterized in that: heating device is including setting up at outside photovoltaic board (2) of a tower section of thick bamboo (1), setting up battery (3) and control panel (4) on supporting platform (5) inside a tower section of thick bamboo (1), battery (3) are connected to the photovoltaic board output, are the power supply for control panel (4) by battery (3), and transparent heating panel (11), temperature sensor I (12) and temperature sensor II (14) are connected respectively in control panel (4).
6. The anti-icing protection device for the blade icing monitoring camera of the wind turbine generator set according to claim 1, characterized in that: the transparent heating panel is an ITO scratch-proof transparent electric heating sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123176136.2U CN216518413U (en) | 2021-12-16 | 2021-12-16 | Anti-icing protection device of blade icing monitoring camera of wind turbine generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123176136.2U CN216518413U (en) | 2021-12-16 | 2021-12-16 | Anti-icing protection device of blade icing monitoring camera of wind turbine generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216518413U true CN216518413U (en) | 2022-05-13 |
Family
ID=81499683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123176136.2U Active CN216518413U (en) | 2021-12-16 | 2021-12-16 | Anti-icing protection device of blade icing monitoring camera of wind turbine generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216518413U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114827427A (en) * | 2022-05-30 | 2022-07-29 | 国家电投集团广西兴安风电有限公司 | Icing monitoring camera shooting anti-icing protection device for wind turbine generator |
-
2021
- 2021-12-16 CN CN202123176136.2U patent/CN216518413U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114827427A (en) * | 2022-05-30 | 2022-07-29 | 国家电投集团广西兴安风电有限公司 | Icing monitoring camera shooting anti-icing protection device for wind turbine generator |
| CN114827427B (en) * | 2022-05-30 | 2023-04-07 | 国家电投集团广西兴安风电有限公司 | Icing monitoring camera shooting anti-icing protection device for wind turbine generator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201750045U (en) | Intelligent terminal box | |
| CN216518413U (en) | Anti-icing protection device of blade icing monitoring camera of wind turbine generator | |
| CN202612005U (en) | Intelligent deicer of wind velocity indicator for wind generation set | |
| CN101916968A (en) | Terminal box | |
| JP2015510083A (en) | How to control a wind turbine without available net support | |
| CN105977604A (en) | Deicing device and deicing method of radio and television transmitting antenna | |
| CN202917608U (en) | Intelligent thermostatic battery maintenance cabinet for base station | |
| CN207490324U (en) | A kind of self radiation type electric control cabinet of high-protection level | |
| CN103437949A (en) | Wind driven generator blade, wind driven generator and blade deicing system | |
| CN207490385U (en) | A kind of open air Intelligent lower voltage switch cabinet | |
| CN109324652A (en) | A kind of running environment intelligent control system | |
| CN112882130A (en) | City meteorological monitoring equipment | |
| CN205117631U (en) | Take heat radiating means's wind -powered electricity generation erection column | |
| CN110233436A (en) | The anti-condensation method of outdoor electric cabinet reducing temperature and humidity based on intelligent control and on-line monitoring | |
| CN107493678B (en) | A kind of clamshell under low temperature environment takes heat regulating device | |
| CN203570505U (en) | Wind driven generator blade, wind driven generator and blade deicing system | |
| CN108512044A (en) | A kind of wind light mutual complementing power supply looped network cabinet dehumidification device | |
| CN212921989U (en) | Deicing device for aircraft | |
| CN213212805U (en) | Long service life's outdoor block terminal | |
| CN212338936U (en) | Multifunctional protective box for natural gas station | |
| CN204475067U (en) | The snow-removing device of snow feelings combination sensor and railway infrared hot box detection equipment | |
| CN209123943U (en) | A kind of wet structure of light source thermal insulation separation of environmental simulation test box | |
| CN209280953U (en) | A kind of meteorological sensor | |
| CN113357103A (en) | Anti-icing protection device for icing monitoring camera of wind turbine generator | |
| JP7292304B2 (en) | Directional icing precipitation detection device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |