CN218407687U - Heating and deicing system for wind power blade - Google Patents
Heating and deicing system for wind power blade Download PDFInfo
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- CN218407687U CN218407687U CN202222226690.5U CN202222226690U CN218407687U CN 218407687 U CN218407687 U CN 218407687U CN 202222226690 U CN202222226690 U CN 202222226690U CN 218407687 U CN218407687 U CN 218407687U
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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
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Abstract
The utility model discloses a wind-powered electricity generation blade heating deicing system, including heating unit, electrical unit and temperature control unit, the heating unit has a plurality ofly, arranges respectively in the different regions of blade, and every heating unit includes graphite alkene fibre combined material layer, heat conduction insulating layer and heating element, graphite alkene fibre combined material layer integrated into one piece is in the blade surface, the blade inner chamber is located to heating element, and it is connected with graphite alkene fibre combined material layer through heat conduction insulating layer, electrical unit is connected with every heating element respectively, the temperature control unit has a plurality ofly, and its quantity is unanimous and the one-to-one with the quantity on heating element and graphite alkene fibre combined material layer respectively, and a plurality of temperature control units connect gradually and are connected with electrical unit. The utility model discloses can effectively solve current blade heating deicing system fragile, the poor problem of deicing effect.
Description
Technical Field
The utility model belongs to the technical field of the technique of wind-powered electricity generation blade deicing and specifically relates to indicate a wind-powered electricity generation blade heating deicing system.
Background
The method has the advantages that the amplitude of China is very wide, the wind power resources are rich, the wind power resources in cold regions of northeast, north China and northwest plateaus of inland are particularly rich, and the method has great development value. However, the high altitude, high humidity, low temperature environment in these locations can easily result in icing on the blade surface. The icing on the surface of the blade has many influences, such as that the fan cannot normally operate, the service life of the blade is influenced, even the blade is broken, operation accidents caused by ice falling easily occur, and the power generation efficiency of the blade in operation is reduced.
Some existing methods for attempting to solve the problem of blade icing include electrical heating deicing, anti-icing coatings, gas-heated deicing, hot water flushing deicing, helicopter ice melting agent spraying, and the like. The traditional electric heating deicing system usually uses metal elements, the metal elements are poor in flexibility, blades cannot be attached to the metal elements for a long time, the metal elements are easy to break in the using process, local high temperature is easy to occur during heating, and the deicing effect is poor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a wind-powered electricity generation blade heating deicing system, can effectively solve current blade heating deicing system fragile, the poor problem of deicing effect.
In order to achieve the above object, the present invention provides a technical solution: the utility model provides a wind-powered electricity generation blade heating deicing system, includes heating element, electrical unit and temperature control unit, the heating element has a plurality ofly, arranges respectively in the different regions of blade, and every heating element includes graphite alkene fibre combined material layer, heat conduction insulating layer and heating element, graphite alkene fibre combined material layer integrated into one piece is in the blade surface, the blade inner chamber is located to heating element, and it is connected with graphite alkene fibre combined material layer through heat conduction insulating layer, electrical unit is connected with every heating element respectively, temperature control unit has a plurality ofly, and its quantity is unanimous and the one-to-one with the quantity on heating element and graphite alkene fibre combined material layer respectively, and a plurality of temperature control units connect gradually and are connected with electrical unit, and every temperature control unit is used for surveying the heating element that corresponds respectively and the blade surface temperature of the graphite alkene fibre combined material layer position department that corresponds.
Further, the graphene fiber composite material layer is composed of an outer skin glass fiber layer of the blade and a graphene fiber layer laid inside the outer skin glass fiber layer.
Furthermore, a mounting hole for inserting a heating element is formed in the inner surface of the blade, the end of the heating element is inserted into the mounting hole and connected with the graphene fiber layer of the graphene fiber composite material layer, and the heat conduction insulating layer covers the contact surface of the heating element and the blade.
Further, the heating element is a metal resistance wire.
Further, the temperature control unit is a temperature sensor.
Further, the temperature control device further comprises an overheating protection device, and the overheating protection device is connected with the power supply unit and the plurality of temperature control units respectively.
Further, the power supply unit comprises an intelligent power supply, and a main switch and a plurality of automatic switches which are connected with the intelligent power supply, wherein the main switch is connected with the plurality of temperature control units, and the plurality of automatic switches are respectively connected with the plurality of heating elements in a one-to-one correspondence manner.
Compared with the prior art, the utility model, have following advantage and beneficial effect:
1. the utility model discloses a deicing system utilizes and lays the graphite alkene fibrous layer inside the blade, because graphite alkene fibrous layer is the surface form and generates heat, and temperature distribution is even during the heating, can effectively avoid the potential safety hazard that local high temperature brought, can reach good deicing effect simultaneously.
2. The utility model discloses a deicing system utilizes lays the graphene fiber layer in that the blade is inside, and graphene fiber electric conductive property is outstanding, and heating programming rate is fast, and required electrical heating power is low, but greatly reduced heating deicing consumed electric energy, and is with low costs.
3. The utility model discloses a deicing system utilizes and lays the graphite alkene fibrous layer in that the blade is inside, and graphite alkene fibre has good mechanical strength and pliability performance, deicing system long service life, and later maintenance is with low costs.
Drawings
Fig. 1 is a schematic structural view of the deicing system of the present invention.
Fig. 2 is a schematic view of the graphene fiber layer inside the blade according to the present invention.
Fig. 3 is a partially enlarged view of a point a in fig. 2.
Detailed Description
The present invention will be further described with reference to the following specific embodiments, but the present invention is not limited thereto.
As shown in fig. 1, the wind power blade heating deicing system according to the embodiment includes a plurality of heating units, a power supply unit and a temperature control unit 2, where the plurality of heating units are respectively disposed in different regions of a blade and configured to perform heating deicing work of each region of the blade by using heat energy converted from electric energy, each heating unit includes a graphene fiber composite material layer 101, a heat-conducting insulating layer 102 and a heating element 103, the graphene fiber composite material layer 101 is integrally formed on an outer surface of the blade, the heating element 103 is disposed in an inner cavity of the blade, and is configured to process a mounting hole on an inner surface of the blade, and then insert an end of the heating element 103 into the mounting hole to be connected to a graphene fiber layer 1011 of the graphene fiber composite material layer 101, the heat-conducting insulating layer 102 covers a contact position between the heating element 103 and the blade, and the heating element is used to heat the outer surface of the blade, the power supply unit is respectively connected to the plurality of heating elements 103 and configured to generate electric energy and control a switch of the heating element 103, the temperature control unit 2 is configured to detect temperatures of the heating element 103 and the graphene fiber composite material layer 101 at a position corresponding to the outer surface of the heating element 101.
As shown in fig. 2 and 3, the graphene fiber composite material layer 101 is composed of a graphene fiber layer 1011 and an outer skin glass fiber layer 1012 of the blade, and the graphene fiber layer 1011 is laid inside the outer skin glass fiber layer 1012 of the corresponding region of the blade, and then the graphene fiber layer 1011 is integrally molded into the blade structure by pouring epoxy resin, so that the graphene fiber composite material layer 101 as a heat conduction structure is composed of the graphene fiber layer 1011 and the outer skin glass fiber layer 1012.
Specifically, the heating element 103 is a metal resistance wire, and joule heat can be generated after the heating element is electrified.
Specifically, the temperature control unit 2 is a temperature sensor.
Specifically, the blade structure further comprises an overheating protection device 3, wherein the overheating protection device 3 is respectively connected with the power supply unit and the plurality of temperature sensors, detected temperature information of the heating element 103 and the outer surface of the blade is fed back to the overheating protection device 3 in real time through the temperature sensors, and when the overheating protection device 3 detects that the temperature is too high, the detected temperature information is fed back to the power supply unit and the power supply is cut off, so that the blade structure or the heating deicing system is prevented from being damaged due to the fact that the heating temperature is too high.
Specifically, the power supply unit comprises an intelligent power supply 401, and a main switch 402 and a plurality of automatic switches 403 connected with the intelligent power supply, wherein the main switch 402 is connected with a plurality of temperature sensors, and the main switch 402 is manually turned on or off according to seasons, so as to control the switching state of the whole deicing system, for example, the main switch 402 is turned off for a long time in summer day hot, the whole deicing system is not operated, the main switch 402 is turned on in winter day cold, the temperature sensors enter the working state, when the temperature detected by the temperature sensors exceeds the set range, current signals are sent to the corresponding automatic switches 403, so that the automatic switches 403 are turned on or off, each automatic switch 403 can intermittently turn on or off the power supply according to the temperature information fed back by the corresponding temperature sensor, so that the heating element 103 performs heating deicing operation, and accordingly, the temperature of the outer surface of the blade can be regulated and controlled in different regions.
The utility model discloses a concrete theory of operation as follows:
the main switch is closed firstly, the temperature of the outer surface of the blade is monitored through the temperature sensors, when the temperature of one or more regions of the outer surface of the blade is monitored to be low, the corresponding temperature sensors trigger feedback signals to the power supply unit, the corresponding automatic switches are powered on at the moment, then joule heat is generated after the corresponding heating elements are powered on, the joule heat is transmitted to the graphene fiber composite material layer through the heat conduction insulating layer, and the graphene fiber composite material layer uniformly transmits the heat to the outer surface of the blade to be heated and deiced.
In the heating process, the temperature sensor feeds detected temperature information of the heating element and the outer surface of the blade back to the overheating protection device in real time, and when the overheating protection device monitors that the temperature of the heating element, the graphene fiber composite material layer or the outer surface of the blade is too high, the temperature information is fed back to the power supply unit to cut off all power supplies, so that the blade structure or the heating deicing system is prevented from being damaged due to the too high heating temperature.
The utility model discloses a deicing system utilizes and lays graphite alkene fibre in that the blade is inside, and graphite alkene fibre is a novel carbon fiber, has good electric conduction, heat conduction, mechanical strength and pliability performance, spreads the layer through being applied to the blade with graphite alkene fibre, at the inside shaping of blade, makes the ice sheet melt with graphite alkene fibre combined material layer as heat conduction structure with heat uniform transfer to blade surface, finally drops under aerodynamic force or inertial force effect, reaches good deicing effect.
The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so that all the changes made according to the shape and principle of the present invention should be covered within the protection scope of the present invention.
Claims (7)
1. The utility model provides a wind-powered electricity generation blade heating deicing system which characterized in that: including heating element, power supply unit and temperature control unit, the heating element has a plurality ofly, arranges respectively in the different regions of blade, and every heating element includes graphite alkene fibre combined material layer, heat conduction insulating layer and heating element, graphite alkene fibre combined material layer integrated into one piece in the blade surface, the blade inner chamber is located to heating element, and it is connected with graphite alkene fibre combined material layer through heat conduction insulating layer, power supply unit is connected with every heating element respectively, the temperature control unit has a plurality ofly, and its quantity is unanimous and the one-to-one with the quantity on heating element and graphite alkene fibre combined material layer respectively, and a plurality of temperature control units connect gradually and are connected with power supply unit, and every temperature control unit is used for surveying the heating element who corresponds respectively and the blade surface temperature of the graphite alkene fibre combined material layer position department that corresponds.
2. The wind blade heating deicing system of claim 1, wherein: the graphene fiber composite material layer is composed of an outer skin glass fiber layer of the blade and a graphene fiber layer laid inside the outer skin glass fiber layer.
3. The wind blade heating deicing system of claim 1, wherein: the inner surface of the blade is provided with a mounting hole for inserting a heating element, the end part of the heating element is inserted into the mounting hole and is connected with the graphene fiber layer of the graphene fiber composite material layer, and the heat conduction insulating layer covers the contact surface of the heating element and the blade.
4. The wind blade heating deicing system of claim 1, wherein: the heating element is a metal resistance wire.
5. The wind blade heating deicing system of claim 1, wherein: the temperature control unit is a temperature sensor.
6. The wind blade heating deicing system of claim 1, wherein: the temperature control device is characterized by further comprising an overheating protection device, wherein the overheating protection device is respectively connected with the power supply unit and the plurality of temperature control units.
7. The wind blade heating deicing system of claim 1, wherein: the power supply unit comprises an intelligent power supply, a main switch and a plurality of automatic switches, wherein the main switch and the plurality of automatic switches are connected with the intelligent power supply, and the main switch is connected with the plurality of temperature control units, and the plurality of automatic switches are respectively connected with the plurality of heating elements in a one-to-one correspondence manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222226690.5U CN218407687U (en) | 2022-08-24 | 2022-08-24 | Heating and deicing system for wind power blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222226690.5U CN218407687U (en) | 2022-08-24 | 2022-08-24 | Heating and deicing system for wind power blade |
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| Publication Number | Publication Date |
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| CN218407687U true CN218407687U (en) | 2023-01-31 |
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| CN202222226690.5U Active CN218407687U (en) | 2022-08-24 | 2022-08-24 | Heating and deicing system for wind power blade |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116480539A (en) * | 2023-06-19 | 2023-07-25 | 湖南创一工业新材料股份有限公司 | Electric heating system and electric heating method for wind power blade |
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2022
- 2022-08-24 CN CN202222226690.5U patent/CN218407687U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116480539A (en) * | 2023-06-19 | 2023-07-25 | 湖南创一工业新材料股份有限公司 | Electric heating system and electric heating method for wind power blade |
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