CN114278519A - Heat exchange structure and heat exchange method for offshore wind turbine generator set - Google Patents
Heat exchange structure and heat exchange method for offshore wind turbine generator set Download PDFInfo
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- CN114278519A CN114278519A CN202111528625.1A CN202111528625A CN114278519A CN 114278519 A CN114278519 A CN 114278519A CN 202111528625 A CN202111528625 A CN 202111528625A CN 114278519 A CN114278519 A CN 114278519A
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000000110 cooling liquid Substances 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 238000010248 power generation Methods 0.000 claims abstract description 14
- 239000013535 sea water Substances 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 230000005611 electricity Effects 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 239000002826 coolant Substances 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 11
- 238000007664 blowing Methods 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims 3
- 238000000429 assembly Methods 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 7
- 230000009347 mechanical transmission Effects 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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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 invention discloses a heat exchange structure and a heat exchange method of an offshore wind power generation unit, and belongs to the technical field of wind power generation. The structure comprises a generator set, a heat exchange assembly and a cooling liquid conveying assembly, wherein the heat exchange assembly is connected with the generator set through a tower rod and a return pipe respectively, one end of the cooling liquid conveying assembly is in transmission with the generator set, and the other end of the cooling liquid conveying assembly extends into the heat exchange assembly and is connected with the generator set through a liquid inlet pipe. When the fan blade drives the generator shaft lever to rotate to generate electricity, the generator shaft lever can drive the heat exchange medium to flow so as to cool the generator set, and then the heat exchange medium is cooled through low-temperature seawater, so that the whole process heat exchange efficiency is high, and the effect is good. The whole structure does not need to consume extra energy during operation, and is energy-saving and environment-friendly; meanwhile, the whole structure adopts mechanical transmission, does not use electronic elements, and has high reliability and long service life.
Description
Technical Field
The invention relates to a heat exchange structure and a heat exchange method of an offshore wind power generation unit, and belongs to the technical field of wind power generation.
Background
The wind driven generator has simple working principle, the wind wheel rotates under the action of wind force, the kinetic energy of the wind is converted into mechanical energy of a wind wheel shaft, and the generator rotates under the drive of the wind wheel shaft to generate electricity. In a broad sense, wind energy is also solar energy, so that the wind power generator can be also said to be a heat energy utilization generator which uses the sun as a heat source and uses the atmosphere as a working medium. At present, some wind driven generators can generate high temperature after being used for a long time, and the high temperature is not easy to dissipate.
Chinese patent publication No. CN205779513U discloses a cooling system for an offshore wind turbine generator system, in which a transport coolant reservoir and a recovery coolant reservoir are disposed in an engine room at the top end of a tower, the transport coolant reservoir and the recovery coolant reservoir are communicated with the atmosphere, when the cooling system works, a pump is used to transport the liquid transported from the transport coolant reservoir to the recovery coolant reservoir, the power consumption of the cooling system during working is greatly reduced by using the principle of a communicating vessel, a coolant supplementing device is disposed at the bottom of the tower, the coolant is conveniently supplemented, and seawater at the bottom of the tower is used as a final cooling source, thereby greatly improving the effect of the cooling system.
However, the cooling system comprises a pump for conveying the liquid in the cooling liquid storage to the recovered cooling liquid storage, and electronic elements such as a control device, a temperature sensor and a liquid level sensor, wherein the pump and the electronic elements additionally consume electric energy, and are not energy-saving and environment-friendly enough; meanwhile, the electronic components are wearing parts, and the use of the electronic components can reduce the operation reliability of the cooling system and shorten the service life of the cooling system.
Disclosure of Invention
In order to solve the technical problems, the invention provides a heat exchange structure and a heat exchange method for an offshore wind turbine generator set.
The invention is realized by the following technical scheme:
the utility model provides an offshore wind power generation unit heat transfer structure, includes generating set, heat transfer assembly and coolant liquid conveying component, heat transfer assembly is connected with generating set through tower pole and back flow respectively, coolant liquid conveying component's one end and generating set transmission, the other end stretches into in the heat transfer assembly to be connected with generating set through the feed liquor pipe.
The generating set includes install bin and generator shaft pole, is equipped with the heat transfer chamber on the install bin, and the generator shaft pole runs through the install bin to with install bin swing joint, the one end of generator shaft pole is equipped with the fan blade, and the other end is equipped with first bevel gear.
The heat exchange cavity is a closed cavity and surrounds the installation box for a circle, the bottom of one end of the heat exchange cavity is connected with the liquid inlet pipe, and the top of the other end of the heat exchange cavity is connected with the return pipe.
One end of the installation box, which is far away from the fan blades, is provided with a fixed box, and the first bevel gear is positioned in the fixed box.
The heat exchange assembly comprises a heat exchange box, the heat exchange box is arranged in seawater, and cooling liquid is filled in the heat exchange box.
The outer wall of the heat exchange box is provided with a plurality of radiating fins side by side, and the top of the heat exchange box is connected with the return pipe.
The cooling liquid conveying assembly comprises a water guide cylinder and a rotating vertical rod, the water guide cylinder is located in the heat exchange assembly, one end of the water guide cylinder is open, the other end of the water guide cylinder is connected with the top of the heat exchange assembly and is connected with the generator set through a liquid inlet pipe, a second bevel gear is arranged at one end of the rotating vertical rod and is in transmission with the generator set through the second bevel gear, the other end of the rotating vertical rod extends into the water guide cylinder, spiral blades are arranged on the outer circular surface of the rotating vertical rod, and the spiral blades are located in the water guide cylinder.
The cooling liquid conveying assembly further comprises a fixed pipe, one end of the fixed pipe is connected with the generator set, the other end of the fixed pipe is connected with the heat exchange assembly, and the rotating vertical rod is located on the inner side of the fixed pipe.
The tower type cooling tower further comprises a workbench, a support frame is arranged at the bottom of the workbench, the tower rod, the backflow pipe, the liquid inlet pipe and the cooling liquid conveying assembly penetrate through the workbench, and the tower rod is fixedly connected with the workbench.
A heat exchange method of a heat exchange structure of an offshore wind turbine generator set comprises the following main steps:
A. the airflow blowing blade drives the shaft lever of the generator to rotate to generate electricity,
B. meanwhile, the generator shaft lever drives the rotating vertical rod to rotate through the first bevel gear and the second bevel gear, the helical blades rotate along with the rotating vertical rod in the water guide cylinder, cooling liquid in the heat exchange tank is pumped into the water guide cylinder, the cooling liquid is pressed into the heat exchange cavity through the liquid inlet pipe to exchange heat with the generator set,
C. the cooling liquid after heat exchange in the heat exchange cavity returns to the heat exchange box through the return pipe, and meanwhile, the heat exchange box exchanges heat with the seawater to cool the cooling liquid.
The invention has the beneficial effects that: when the fan blade drives the generator shaft lever to rotate to generate electricity, the generator shaft lever can drive the heat exchange medium to flow so as to cool the generator set, and then the heat exchange medium is cooled through low-temperature seawater, so that the whole process heat exchange efficiency is high, and the effect is good. The whole structure does not need to consume extra energy during operation, and is energy-saving and environment-friendly; meanwhile, the whole structure adopts mechanical transmission, does not use electronic elements, and has high reliability and long service life.
Drawings
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic structural view of the mounting box of the present invention;
fig. 4 is a schematic structural view of the water guide cylinder of the present invention.
In the figure: 1-workbench, 2-tower rod, 3-installation box, 4-fixed box, 5-generator shaft rod, 6-fan blade, 7-first bevel gear, 8-fixed pipe, 9-heat exchange box, 10-rotating vertical rod, 11-second bevel gear, 12-water guide cylinder, 13-helical blade, 14-liquid inlet pipe, 15-backflow pipe, 16-heat exchange cavity, 17-radiating fin and 18-support frame.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1 to 4, the heat exchange structure of the offshore wind turbine generator set according to the present invention includes a generator set, a heat exchange assembly and a coolant conveying assembly, wherein the heat exchange assembly is connected to the generator set through a tower rod 2 and a return pipe 15, respectively, one end of the coolant conveying assembly is in transmission with the generator set, and the other end of the coolant conveying assembly extends into the heat exchange assembly and is connected to the generator set through a liquid inlet pipe 14.
The generator set comprises an installation box 3 and a generator shaft lever 5, a heat exchange cavity 16 is processed on the installation box 3, the generator shaft lever 5 penetrates through the installation box 3 and is movably connected with the installation box 3, a fan blade 6 is installed at one end of the generator shaft lever 5, and a first bevel gear 7 is installed at the other end of the generator shaft lever.
The heat exchange cavity 16 is a closed cavity and surrounds the installation box 3 for a circle, the bottom of one end of the heat exchange cavity 16 is connected with the liquid inlet pipe 14, and the top of the other end of the heat exchange cavity is connected with the return pipe 15. Heat transfer chamber 16 encircles installation box 3 a week, has increased the heat transfer area of heat transfer chamber 16 with the installation box 3 inner space as far as possible to improve heat exchange efficiency and heat transfer effect. The bottom of one end of the heat exchange cavity 16 is connected with the liquid inlet pipe 14, the top of the other end of the heat exchange cavity is connected with the return pipe 15, the retention time of the cooling liquid in the heat exchange cavity 16 is prolonged, the cooling liquid and the generator set can fully exchange heat, and then the cooling liquid flows back to the heat exchange box 9 through the return pipe 15, and the heat exchange effect is improved.
And a fixed box 4 is arranged at one end of the mounting box 3, which is far away from the fan blade 6, and a first bevel gear 7 is positioned in the fixed box 4. In use, the second bevel gear 11 is also located in the stationary box 4 and is engaged with the first bevel gear 7, and the first bevel gear 7 and the second bevel gear 11 are protected by the stationary box 4 to prolong their service life.
The heat exchange assembly comprises a heat exchange box 9, the heat exchange box 9 is arranged in seawater, and cooling liquid is filled in the heat exchange box 9.
The outer wall of the heat exchange box 9 is provided with a plurality of radiating fins 17 side by side, and the top of the heat exchange box 9 is connected with a return pipe 15. The contact area between the heat exchange box 9 and the seawater is increased through the radiating fins 17, so that the heat exchange efficiency and the heat exchange effect are improved, and the cooling liquid in the heat exchange box 9 can be rapidly cooled.
The cooling liquid conveying assembly comprises a water guide cylinder 12 and a rotating vertical rod 10, the water guide cylinder 12 is located in a heat exchange assembly, one end of the water guide cylinder 12 is open, the other end of the water guide cylinder is connected with the top of the heat exchange assembly and is connected with a generator set through a liquid inlet pipe 14, a second bevel gear 11 is installed at one end of the rotating vertical rod 10 and is in transmission with the generator set through the second bevel gear 11, the other end of the rotating vertical rod 10 extends into the water guide cylinder 12, spiral blades 13 are arranged on the outer circular surface of the rotating vertical rod 10, and the spiral blades 13 are located in the water guide cylinder 12. As shown in fig. 1, in use, the pitch of the helical blade 13 gradually decreases from bottom to top, so that the closed cavity formed by the helical blade 13 and the water guide cylinder 12 gradually decreases from bottom to top, thereby lifting and pressing the coolant into the heat exchange cavity 16 at a certain pressure.
The cooling liquid conveying assembly further comprises a fixed pipe 8, one end of the fixed pipe 8 is connected with the generator set (the fixed box 4), the other end of the fixed pipe 8 is connected with the heat exchange assembly (the heat exchange box 9), and the rotating vertical rod 10 is located on the inner side of the fixed pipe 8. Including will rotating montant 10 cage cover through fixed pipe 8, avoid rotating montant 10 corrosion to prolong its life, simultaneously, improve the connection reliability between fixed case 4 and the heat exchange case 9 through fixed pipe 8.
The cooling tower further comprises a workbench 1, a supporting frame 18 is mounted at the bottom of the workbench 1, a tower rod 2, a return pipe 15, a liquid inlet pipe 14 and a cooling liquid conveying assembly penetrate through the workbench 1, and the tower rod 2 is fixedly connected with the workbench 1.
A heat exchange method of a heat exchange structure of an offshore wind turbine generator set comprises the following main steps:
A. the airflow blowing blade 6 drives the generator shaft lever 5 to rotate for generating power,
B. meanwhile, the generator shaft lever 5 drives the rotating vertical rod 10 to rotate through the first bevel gear 7 and the second bevel gear 11, the helical blade 13 rotates along with the rotating vertical rod 10 in the water guide cylinder 12, the cooling liquid in the heat exchange box 9 is pumped into the water guide cylinder 12, the cooling liquid is pressed into the heat exchange cavity 16 through the liquid inlet pipe 14 to exchange heat with the generator set,
C. the cooling liquid after heat exchange in the heat exchange cavity 16 returns to the heat exchange box 9 through the return pipe 15, and meanwhile, the heat exchange box 9 exchanges heat with the seawater to cool the cooling liquid.
According to the heat exchange structure and the heat exchange method of the offshore wind turbine generator set, the blades 6 drive the generator shaft lever 5 to rotate to generate electricity, meanwhile, the generator shaft lever 5 drives the heat exchange medium to flow so as to cool and cool the generator set, then, the heat exchange medium is cooled through low-temperature seawater, and the whole process is high in heat exchange efficiency and good in effect. The whole structure does not need to consume extra energy during operation, and is energy-saving and environment-friendly; meanwhile, the whole structure adopts mechanical transmission, does not use electronic elements, and has high reliability and long service life.
Claims (10)
1. A heat exchange structure of an offshore wind power generation unit is characterized in that: including generating set, heat exchange assemblies and coolant liquid transport assembly, heat exchange assemblies is connected with generating set through tower pole (2) and back flow (15) respectively, coolant liquid transport assembly's one end and generating set transmission, the other end stretches into in the heat exchange assemblies to be connected with generating set through feed liquor pipe (14).
2. An offshore wind power generation unit heat exchange structure as defined in claim 1, wherein: generating set includes install bin (3) and generator shaft pole (5), is equipped with heat transfer chamber (16) on install bin (3), and generator shaft pole (5) run through install bin (3) to with install bin (3) swing joint, the one end of generator shaft pole (5) is equipped with fan blade (6), and the other end is equipped with first bevel gear (7).
3. An offshore wind power generation unit heat exchange structure as defined in claim 2, wherein: the heat exchange cavity (16) is a closed cavity and surrounds the installation box (3) for a circle; the bottom of one end of the heat exchange cavity (16) is connected with the liquid inlet pipe (14), and the top of the other end is connected with the return pipe (15).
4. An offshore wind power generation unit heat exchange structure as defined in claim 2, wherein: one end of the mounting box (3) far away from the fan blade (6) is provided with a fixed box (4), and the first bevel gear (7) is located in the fixed box (4).
5. An offshore wind power generation unit heat exchange structure as defined in claim 1, wherein: the heat exchange assembly comprises a heat exchange box (9), the heat exchange box (9) is arranged in seawater, and cooling liquid is filled in the heat exchange box (9).
6. An offshore wind power generation unit heat exchange structure as defined in claim 5, wherein: a plurality of radiating fins (17) are arranged on the outer wall of the heat exchange box (9) side by side, and the top of the heat exchange box (9) is connected with a return pipe (15).
7. An offshore wind power generation unit heat exchange structure as defined in claim 1, wherein: the coolant liquid conveying assembly comprises a water guide cylinder (12) and a rotating vertical rod (10), the water guide cylinder (12) is located in a heat exchange assembly, one end of the water guide cylinder (12) is opened, the other end of the water guide cylinder is connected with the top of the heat exchange assembly, the water guide cylinder is connected with a generator set through a liquid inlet pipe (14), one end of the rotating vertical rod (10) is provided with a second bevel gear (11), the second bevel gear (11) is in transmission with the generator set, the other end of the rotating vertical rod extends into the water guide cylinder (12), spiral blades (13) are arranged on the outer circular surface of the rotating vertical rod (10), and the spiral blades (13) are located in the water guide cylinder (12).
8. An offshore wind power generation unit heat exchange structure as defined in claim 7, wherein: the cooling liquid conveying assembly further comprises a fixed pipe (8), one end of the fixed pipe (8) is connected with the generator set, the other end of the fixed pipe is connected with the heat exchange assembly, and the rotating vertical rod (10) is located on the inner side of the fixed pipe (8).
9. An offshore wind power generation unit heat exchange structure as defined in claim 1, wherein: the cooling tower is characterized by further comprising a workbench (1), a support frame (18) is arranged at the bottom of the workbench (1), the tower rod (2), the return pipe (15), the liquid inlet pipe (14) and the cooling liquid conveying assembly penetrate through the workbench (1), and the tower rod (2) is fixedly connected with the workbench (1).
10. A heat exchange method of a heat exchange structure of an offshore wind turbine generator set is characterized by comprising the following steps: the method comprises the following main steps:
A. the airflow blowing blade (6) drives the generator shaft lever (5) to rotate to generate electricity;
B. meanwhile, the generator shaft rod (5) drives the rotating vertical rod (10) to rotate through the first bevel gear (7) and the second bevel gear (11), the helical blade (13) rotates along with the rotating vertical rod (10) in the water guide cylinder (12), the cooling liquid in the heat exchange box (9) is pumped into the water guide cylinder (12), and the cooling liquid is pressed into the heat exchange cavity (16) through the liquid inlet pipe (14) to exchange heat with the generator set;
C. the cooling liquid which completes heat exchange in the heat exchange cavity (16) returns to the heat exchange box (9) through the return pipe (15), and meanwhile, the heat exchange box (9) exchanges heat with the seawater to cool the cooling liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111528625.1A CN114278519A (en) | 2021-12-14 | 2021-12-14 | Heat exchange structure and heat exchange method for offshore wind turbine generator set |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111528625.1A CN114278519A (en) | 2021-12-14 | 2021-12-14 | Heat exchange structure and heat exchange method for offshore wind turbine generator set |
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| CN114278519A true CN114278519A (en) | 2022-04-05 |
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| CN202111528625.1A Pending CN114278519A (en) | 2021-12-14 | 2021-12-14 | Heat exchange structure and heat exchange method for offshore wind turbine generator set |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116436214A (en) * | 2023-03-07 | 2023-07-14 | 华能澜沧江水电股份有限公司 | Air duct cooling device of generator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009138555A (en) * | 2007-12-04 | 2009-06-25 | Mitsubishi Heavy Ind Ltd | Wind power generation apparatus |
| CN102953940A (en) * | 2011-08-23 | 2013-03-06 | 通用电气公司 | Wind turbine |
| CN105909481A (en) * | 2016-06-29 | 2016-08-31 | 湘潭电机股份有限公司 | Cooling system of offshore wind power generation unit |
| CN112211785A (en) * | 2020-09-24 | 2021-01-12 | 包红喜 | Heat dissipation type wind power generation equipment |
-
2021
- 2021-12-14 CN CN202111528625.1A patent/CN114278519A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009138555A (en) * | 2007-12-04 | 2009-06-25 | Mitsubishi Heavy Ind Ltd | Wind power generation apparatus |
| CN102953940A (en) * | 2011-08-23 | 2013-03-06 | 通用电气公司 | Wind turbine |
| CN105909481A (en) * | 2016-06-29 | 2016-08-31 | 湘潭电机股份有限公司 | Cooling system of offshore wind power generation unit |
| CN112211785A (en) * | 2020-09-24 | 2021-01-12 | 包红喜 | Heat dissipation type wind power generation equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116436214A (en) * | 2023-03-07 | 2023-07-14 | 华能澜沧江水电股份有限公司 | Air duct cooling device of generator |
| CN116436214B (en) * | 2023-03-07 | 2024-03-22 | 华能澜沧江水电股份有限公司 | Air duct cooling device of generator |
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