CN216198708U - Heating device for wind power generator - Google Patents
Heating device for wind power generator Download PDFInfo
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- CN216198708U CN216198708U CN202122308654.9U CN202122308654U CN216198708U CN 216198708 U CN216198708 U CN 216198708U CN 202122308654 U CN202122308654 U CN 202122308654U CN 216198708 U CN216198708 U CN 216198708U
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- heating
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- wind power
- power generator
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model discloses a heating device for a wind power generator, which comprises: a heating assembly and a control assembly; the heating component is of a hollow cylindrical structure, and the cross section of the heating component is a U-shaped arc surface; the arc diameter of the cross section of the heating assembly is adjustable; the heating component is electrically connected with the control component and is used for heating at constant temperature under the control of the control component. The heating device has the advantages of small volume, simple manufacture, high reliability and the like, can greatly improve the field maintenance efficiency, and reduces the maintenance cost.
Description
Technical Field
The utility model relates to the technical field of maintenance of wind power equipment, in particular to a heating device for a wind power generator.
Background
In the field maintenance heating process of a wind power generator bearing or a slip ring, particularly in the process of heating an inner ring in the maintenance process of a double-fed generator bearing or a slip ring, the current bearing or slip ring heating mode commonly used in the industry is flame heating, and in the use process of a wind field, electromagnetic heating and oil heating have the problems of inconvenience in carrying, incapability of heating larger parts such as the slip ring and the like, unsafe field flame heating operation, uncontrollable heating temperature and the like. With the continuous development of the wind power market, the power of a single machine continuously rises, the maintenance working condition of the generator on site also tends to rise, and therefore the efficient and reliable inner ring heating device is very important for improving the maintenance efficiency of the generator on site.
At present, patent No. 201910979945.0 discloses a wind power bearing heating device, which mainly adopts carbon fiber and a heating circuit to form a heating layer, and a heat preservation box is formed by polyurethane foaming materials, the bearing is heated by the heating layer and then is subjected to heat preservation treatment in the heat preservation box, and the temperature condition of the bearing is monitored by a temperature sensing device, the scheme is inconvenient to use on site due to large volume, the manufacturing cost is high, and especially a heating element is adopted; and the heat preservation can not be automatically controlled only by the constant temperature control of the heat preservation layer, and the related system is complex.
Disclosure of Invention
The embodiment of the utility model aims to provide a heating device for a wind power generator, which can effectively meet the heating requirements of inner diameters of different parts through simple outer diameter adjustment, has the advantages of small volume, simple manufacture, high reliability and the like, can greatly improve the field maintenance efficiency, and reduces the maintenance cost.
In order to solve the above technical problem, an embodiment of the present invention provides a heating device for a wind turbine generator, including: a heating assembly and a control assembly;
the heating assembly is of a hollow cylindrical structure, and the cross section of the heating assembly is a U-shaped arc surface;
the arc diameter of the cross section of the heating assembly is adjustable;
the heating assembly is electrically connected with the control assembly and is used for heating at constant temperature under the control of the control assembly.
Further, the heating assembly includes: a heating assembly body, a heating wire and a filler;
the electric heating wire is arranged in the heating component body and is in a zigzag structure;
insulating fillers are filled between the heating assembly body and the heating wire;
the heating wire is electrically connected with the control assembly through an external circuit connector.
Furthermore, the heating component body is a U-shaped arc surface formed by bending two layers of metal sheets.
Further, the surface of the external circuit connector is coated with a ceramic layer.
Further, the insulating filler is magnesium oxide.
Further, the diameter of the circular arc cross section of the heating assembly is 120mm to 150 mm.
Further, the control assembly includes: a control circuit and a temperature detection resistor;
the temperature detection resistor is arranged on the surface of the part to be heated and is electrically connected with the control circuit;
the control circuit controls the on-off of a switch of an internal circuit thereof according to the temperature detection value of the surface of the part to be heated, which is obtained by the temperature detection resistor, so as to switch the running state of the heating assembly.
Further, the temperature detection resistor is a PTC thermistor.
Further, the PTC thermistor is detachably connected with the surface of the component to be heated through a magnet.
The technical scheme of the embodiment of the utility model has the following beneficial technical effects:
the heating device has the advantages of small volume, simple manufacture, high reliability and the like, can greatly improve the field maintenance efficiency, and reduce the maintenance cost; and the temperature control of the heating assembly can be effectively realized by means of the PTC thermistor, and the problem of overheating of the components in the heating process is effectively avoided.
Drawings
FIG. 1 is a schematic structural diagram of a heating assembly body according to an embodiment of the present invention;
fig. 2 is a schematic view of a heating wire arrangement provided in an embodiment of the present invention;
fig. 3 is a schematic diagram of a structure of an external circuit connector according to an embodiment of the utility model;
fig. 4 is a schematic diagram of a control assembly provided in an embodiment of the present invention.
Reference numerals:
1. heating element, 2, heating element body, 3, external circuit connector, 4, heating wire, 5, insulating filler, 6, ceramic layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Referring to fig. 1, fig. 2 and fig. 3, an embodiment of the present invention provides a heating device for a wind turbine generator, including: a heating assembly 1 and a control assembly; the heating component 1 is a hollow cylindrical structure, and the cross section of the heating component is a U-shaped arc surface; the arc diameter of the cross section of the heating component 1 is adjustable; the heating component 1 is electrically connected with the control component and is used for heating at constant temperature under the control of the control component.
Above-mentioned technical scheme can effectually be suitable for different part internal diameter heating requirements through simple and easy external diameter adjustment, and heating device has advantages such as small, make simply, reliability height, can improve on-the-spot maintenance efficiency by a wide margin to reduce cost of maintenance.
Further, the heating assembly 1 comprises: a heating assembly body 2, a heating wire 3 and an insulating filler 5; the electric heating wire 4 is arranged inside the heating component body 2 and is in a zigzag structure; an insulating filler 5 is filled between the heating assembly body 2 and the heating wire 4; the electric heating wire 4 is electrically connected with the control component through the external circuit connector 3.
Further, the heating element body 2 is a U-shaped arc surface formed by bending two layers of metal sheets.
Further, the surface of the external circuit connector 3 is coated with a ceramic layer 6, the ceramic layer 6 can realize insulation between the external circuit connector 3 and the heating assembly body 2, and in addition, the external circuit connector 3 can be reinforced, so that the electrical property and the mechanical property of the external circuit connector 3 are improved.
Further, the insulating filler 5 is magnesium oxide for insulation between the heating wire 4 and the heating assembly body 2. In addition, the magnesium oxide also has good heat conduction effect, and can conduct the heat generated by the heating wire 4 to the surface of the heating assembly body 1 as soon as possible, so that the heating efficiency is improved, and the heating time is shortened.
Further, the diameter of the circular arc cross section of the heating assembly 1 is 120mm to 150 mm. The heating assembly body 2 adopts a circular arc-shaped half-opening design, and can be adjusted between the diameters of 120mm and 150mm so as to meet the heating requirements of components such as bearings, slip rings and the like.
Further, the control assembly includes: a control circuit and a temperature detection resistor; the temperature detection resistor is arranged on the surface of the part to be heated and is electrically connected with the control circuit; the control circuit controls the on-off of a switch of an internal circuit thereof according to a temperature detection value of the surface of the part to be heated, which is obtained by the temperature detection resistor, so as to switch the running state of the heating assembly.
Further, the temperature detecting resistor is a PTC thermistor, and the stable heating function of the member to be heated is realized by the PTC thermistor characteristics.
Further, the PTC thermistor is detachably connected with the surface of the part to be heated through a magnet.
Aiming at the heating requirements of inner rings of parts such as bearings, slip rings and the like of field generators, a special induction heating device or flame heating is usually adopted at present. The induction heating device is expensive in equipment cost, only can heat smaller components such as a bearing and the like, and cannot heat a slip ring component. And the flame heating temperature is difficult to control, the technical capability requirement on field personnel is extremely high, and the problems of overheating parts frequently occur on the field, such as cracking of a slip ring insulating layer caused by overheating and the like.
The utility model provides a convenient and efficient component heating mode from the perspective of actual maintenance of a wind field, and can meet the heating requirements of main components of an on-site generator and the requirements on stable heating temperature through the adjustable outer diameter of a heating assembly and the use of a PTC thermistor.
According to the inner diameter condition of the heating part, the heating assembly body 2 is finely adjusted, the heating assembly body is placed into an inner ring of a bearing or a slip ring waiting for the heating part, and the PTC thermistor with the magnet on the surface is placed on the surface of the part to be heated. And connecting the control circuit of the control assembly with the external circuit connector of the heating assembly and connecting the power supply.
Referring to fig. 4, when the QS switch in the control circuit is turned on, the heating assembly 1 is in a heating state, and since the heating assembly body 2 has a gap, the heating assembly body 2 needs to be rotated about 10 minutes to uniformly heat the to-be-heated member, and the PTC thermistor is moved. When the temperature of the part to be heated reaches the protection temperature of the PTC thermistor, the PTC thermistor disconnects the control circuit and the main circuit stops heating, and when the temperature is lower than the protection temperature of the PTC thermistor, the PTC thermistor restores to conduct the QS switch of the control circuit for heating, and finally the temperature is stabilized.
The embodiment of the utility model aims to protect a heating device for a wind power generator, which comprises: a heating assembly and a control assembly; the heating component is of a hollow cylindrical structure, and the cross section of the heating component is a U-shaped arc surface; the arc diameter of the cross section of the heating assembly is adjustable; the heating component is electrically connected with the control component and is used for heating at constant temperature under the control of the control component. The technical scheme has the following effects:
the heating device has the advantages of small volume, simple manufacture, high reliability and the like, can greatly improve the field maintenance efficiency, and reduce the maintenance cost; and the temperature control of the heating assembly can be effectively realized by means of the PTC thermistor, and the problem of overheating of the components in the heating process is effectively avoided.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (9)
1. A heating device for a wind power generator is characterized by comprising: a heating assembly (1) and a control assembly;
the heating assembly (1) is of a hollow cylindrical structure, and the cross section of the heating assembly is a U-shaped arc surface;
the arc diameter of the cross section of the heating assembly (1) is adjustable;
the heating component (1) is electrically connected with the control component, and is controlled by the control component to perform constant-temperature heating.
2. The heating apparatus for a wind power generator according to claim 1,
the heating assembly (1) comprises: the heating assembly comprises a heating assembly body (2), a heating wire (4) and an insulating filler (5);
the electric heating wire (4) is arranged inside the heating component body (2) and is of a zigzag structure;
the insulating filler (5) is filled between the heating assembly body (2) and the heating wire (4);
the heating wire (4) is electrically connected with the control assembly through an external circuit connector (3).
3. The heating apparatus for a wind power generator according to claim 2,
the heating component body (2) is a U-shaped arc surface formed by bending two layers of metal sheets.
4. The heating apparatus for a wind power generator according to claim 2,
the surface of the external circuit connector (3) is coated with a ceramic layer (6).
5. The heating apparatus for a wind power generator according to claim 2,
the insulating filler (5) is magnesium oxide.
6. The heating apparatus for a wind power generator according to claim 1,
the diameter of the circular arc cross section of the heating component (1) is 120mm to 150 mm.
7. The heating apparatus for a wind power generator according to claim 1,
the control assembly includes: a control circuit and a temperature detection resistor;
the temperature detection resistor is arranged on the surface of the part to be heated and is electrically connected with the control circuit;
the control circuit controls the on-off of a switch of an internal circuit thereof according to the temperature detection value of the surface of the part to be heated, which is obtained by the temperature detection resistor, so as to switch the running state of the heating assembly (1).
8. The heating apparatus for a wind power generator according to claim 7,
the temperature detection resistor is a PTC thermistor.
9. The heating apparatus for a wind power generator according to claim 8,
the PTC thermistor is detachably connected with the surface of the part to be heated through a magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122308654.9U CN216198708U (en) | 2021-09-18 | 2021-09-18 | Heating device for wind power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122308654.9U CN216198708U (en) | 2021-09-18 | 2021-09-18 | Heating device for wind power generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216198708U true CN216198708U (en) | 2022-04-05 |
Family
ID=80921596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122308654.9U Active CN216198708U (en) | 2021-09-18 | 2021-09-18 | Heating device for wind power generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216198708U (en) |
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2021
- 2021-09-18 CN CN202122308654.9U patent/CN216198708U/en active Active
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