CN102220947A - Dehumidifying and cooling system of offshore wind generating set - Google Patents
Dehumidifying and cooling system of offshore wind generating set Download PDFInfo
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- CN102220947A CN102220947A CN2011101172177A CN201110117217A CN102220947A CN 102220947 A CN102220947 A CN 102220947A CN 2011101172177 A CN2011101172177 A CN 2011101172177A CN 201110117217 A CN201110117217 A CN 201110117217A CN 102220947 A CN102220947 A CN 102220947A
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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
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention discloses a dehumidifying and cooling system of an offshore wind generating set, comprising a circulating pump, a filtering device, a radiating device, a heating part, a tee-joint magnetic valve and a expanding tank, which are arranged in an engine cabin, connected in sequence end to end and form a loop; a temperature detecting device and a pressure detecting device are sequentially arranged on a pipeline connected between the radiating device and the heating part; the system also comprises a steam compressing refrigerating unit which comprises a throttling element, a first evaporator, a second evaporator and a compressor which are arranged in the engine cabin, as well as a condenser arranged in sea water; the throttling element, the first evaporator, the second evaporator, the compressor and the condenser are connected in sequence to form a loop; and two ends of the second evaporator are further connected with the tee-joint magnetic valve and the expanding tank respectively. As the refrigerating output of the refrigerating unit is large, the heating capacity of a wind generating unit can be radiated rapidly, so that the cooling requirement of an MW-stage wind generating unit with larger heating capacity is ensured, and the system is applicable to the development and the application of a wind power generation unit with larger capacity.
Description
Technical field
The present invention relates to wind power generation field, especially relate to the dehumidifying and the cooling system of offshore wind generating group.
Background technique
Wind energy is a kind of renewable energy sources of cleaning, and since 1996, global wind-powered electricity generation electric motor power is average annual 30% and increases, and surpasses 1.58 hundred million kW the end of the year 2009.China's wind energy electric motor power 0.25 hundred million kW accounts for the second place of the world.
During the wind power generating set operation, on gear-box, generator and current-variable controller three big parts, can produce a large amount of heats.These heats are if untimely draining will make wind power generating set efficient reduce greatly, and even final paralysis.Therefore, being equipped with function admirable, the cooling system rapidly of lowering the temperature, is the indispensable important measures that guarantee that wind power generating set is long-term, run well.
At present, the wind power generating set of quite a few is to adopt force ventilated mode, and three big heating component are directly cooled off.This mode is in the electric motor power of wind-powered electricity generation unit little (kW level), under the less relatively situation of heating value, can reach the cooling requirement, and is little to the unit efficiency influence.
The electric motor power of wind-powered electricity generation just develops to the MW level from the kW level but at present.Bigger electric motor power means that heating value is bigger, and the performance of cooling equipment has determined the size of electric motor power to a certain extent.At this moment, the mode of the cooling of directly ventilating can not reach the cooling requirement of unit again, must use the mode of liquid circulation cooling.
Existing liquid circulation cooling system is roughly as follows: circulating liquid is taken away the heat of three big parts, is transported to external heat exchanger by pump.Heat exchanger is for being generally the air cooling pattern, and the air stream with certain speed passes at the heat exchanger outer surface, and the circulating liquid heat of the heat exchanger inside of flowing through is taken away, and the circulating liquid after the cooling returns heating component, absorbs heat, forms cool cycles.
This type of cooling is to be final low-temperature receiver with air, because the mass flow rate of air is less, so cooling effect is limited, increases in unit capacity, when heating value is bigger, is difficult to satisfy the cooling requirement.
Simultaneously, if this cooling system is used in the offshore wind farm unit, can bring more serious problem.Because there was dampness in the air on the sea and contain salt, be easy to just cause the corrosion and the damage of air-cooled heat exchanger, the life-span shortens greatly.
Owing to reasons such as maintenance, the air of unit inside can not guarantee with ambient air isolated fully, also has the hidden danger and the danger of humid air etching apparatus.
This shows,,, will consider that also the removal moisture drying of unit inner air is handled, to guarantee the long-term use of equipment except solving the heating problem of critical component for the large-scale offshore wind generating group of MW level.
About 1,000,000,000 kW of the available wind energy content of China, the reserves on land only account for 25%, and marine reserves have accounted for 75%, and the offshore wind generating group of MW level will become the development in future main flow.
Therefore, seek a kind ofly to be applicable to the offshore wind generating group, have the high efficiency and heat radiation ability, can effectively handle to reduce the dehumidifying and the cooling system of equipment corrosion, become the task of top priority of wind-powered electricity generation industry the air in the unit.
Summary of the invention
The purpose of this invention is to provide a kind of dehumidifying and cooling system that is applicable to the offshore wind farm unit.
This system is with the cooling machine set of the steam compression type low-temperature receiver as dehumidifying and cooling, and circulating liquid is taken away the cooling medium of heat as heating component.
Because cooling machine set can provide low-temperature cold water about 10 ℃, the air cooling-down of the group of motors inside of therefore can keeping watch below dew point temperature, thereby moisture is separated out, keep the drying of inner space and the working life of equipment.
Simultaneously, the low-temperature cold water about 10 ℃ has improved the heat transfer temperature difference with wind-powered electricity generation unit heating component, and heat is taken away from heating component faster, is specially adapted to the cooling requirement of the big capacity wind-powered electricity generation of MW level unit.
By this system, can effectively improve the air quality of wind-powered electricity generation unit inner space, improve the cooling effect of big capacity wind-powered electricity generation unit greatly.
These 2 all be in the past simple by air cooling or liquid cooling mode irrealizable.
For realizing above purpose, the present invention has taked following technological scheme: the dehumidifying of offshore wind generating group and cooling system include recycle pump, filtrating equipment, radiator, heating element, three-way magnetic valve, expansion drum that the head and the tail successively that are arranged in the cabin connect and constitute the loop; On the pipeline that connects between described radiator and the heating element, be provided with temperature-detecting device, pressure-detecting device successively; Also comprise the vapour compression refrigerator group, it comprises throttle element, first vaporizer, second vaporizer, the compressor that is located in the cabin, and being located at condenser in the seawater, described throttle element, first vaporizer, second vaporizer, compressor, condenser connect successively and constitute the loop; The described second vaporizer two ends also are connected with expansion drum with three-way magnetic valve respectively.
Be provided with safety valve and air pump on described expansion drum, described electric controller is connected with expansion drum by air pump.
Described radiator outer surface closely contacts with heating component such as gear-box, generator and current-variable controllers, thereby guarantees to conduct heat rapidly.Radiator inside is provided with a plurality of runners, so that circulating liquid process is therefrom taken away heat.The runner internal surface adopts internal thread or internal rib formations, with expansion heat exchange area, enhancing disturbance, thus the forced heat exchanging effect.
Described expansion drum can discharge or stored energy, thereby makes the pressure of whole cooling system inner loop liquid keep stable.Voltage stabilizing auxiliary devices such as expansion drum and safety valve, air pump are used, and when overpressure, safety valve is opened and pressure release, booster air pump supercharging during underpressure.
Described recycle pump is the power source of whole cooling system, running by recycle pump, circulating liquid passes through parts such as second vaporizer, expansion drum, recycle pump, filter of radiator, cooling machine set successively, and the heat of heating component is taken away, and finishes cooling procedure.
Described three-way magnetic valve is to be used to regulate the circulating fluid flow rate that enters brine cooler, thereby the temperature of keeping circulating liquid is in suitable scope.
Described filtrating equipment mainly is the cleanliness that guarantees to enter the circulating liquid of radiator, make its can be owing to not containing impurity blocking pipeline.
Described pressure-detecting device, temperature-detecting device are that the associated temperature, the pressure parameter that are used for system detect the operation conditions of reponse system.
Described electric controller is the parameter of feeding back according to above-mentioned pressure-detecting device, temperature-detecting device, and parts such as recycle pump, air pump, solenoid valve are regulated control, makes system high efficiency, stable operation.
Condenser is wherein taked the seawater condensing mode, and outer surface is immersed in the seawater, and the outer surface design has fin, to increase heat exchange area and forced heat exchanging effect.Inside is provided with a plurality of runners, is connected with compressor and throttle element.
Cooling machine set has two vaporizers, and first vaporizer is the fan coil unit form, and the air that is mainly used in wind-powered electricity generation unit inside carries out the cool-down dehumidification processing.First evaporator designs has cooperating fan, during fan running the air in the cabin is blowed to first vaporizer, and air cooling-down is separated out moisture during through heat exchanger, returns the cabin, has obtained drying process.
Second vaporizer is liquid-liquid heat exchange form, is mainly used in the heat that heating component is distributed and handles.Circulating liquid is taken away heat from the radiator of heating component after, obtain cooling when being transferred to second vaporizer, return radiator.
Cooling machine set inside is filled with refrigeration agent, and refrigeration agent enters compressor behind the heat of first vaporizer and second vaporizer absorption air and circulating liquid.High-temperature high-pressure refrigerant after the compression enters the inner flow passage of sea water condenser.The condensation of lowering the temperature becomes the fluid of low-temp low-pressure then through throttle element, enter two vaporizers again and finish circulation.
Main innovation part of the present invention is that refrigeration system adopts unique double evaporators structure, implements the dehumidifying and the refrigerating function of wind power generating set simultaneously.
The present invention compared with prior art has following advantage:
1, because the refrigerating capacity of cooling machine set is big, the heating value of wind-powered electricity generation unit is distributed rapidly, thereby guaranteed the cooling requirement of the MW level wind-powered electricity generation unit that heating value is very big, be adapted to the development and the application of more jumbo wind power generating set.
2, refrigeration system adopts unique double evaporators structure, implements the dehumidifying and the refrigerating function of wind power generating set simultaneously, has improved the working environment of wind-powered electricity generation unit greatly, has guaranteed the reliability and the long-term working life of system.
3, the condenser of cooling machine set adopts cooled with seawater mode, condensation efficiency height.And heat exchanger is fully immersed in the seawater, avoided the salt spray corrosion phenomenon of air-cooled condenser in long-term using process of conventional refrigeration.
Description of drawings
Fig. 1 is a system architecture schematic representation of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments content of the present invention is described in further details.
Embodiment:
See also shown in Figure 1ly, the cooling system of offshore wind generating group includes recycle pump 1, filtrating equipment 2, radiator 3, heating element 6, three-way magnetic valve 7, expansion drum 9 that the head and the tail successively that are arranged in the cabin connect and constitute the loop; On the pipeline that connects between radiator 3 and the heating element 6, be provided with temperature-detecting device 4, pressure-detecting device 5 successively; Also comprise vapour compression refrigerator group 8, it comprises throttle element 81, first vaporizer 82, second vaporizer 83, the compressor 85 that is located in the cabin, and being located at condenser 84 in the seawater, throttle element 81, first vaporizer 82, second vaporizer 83, compressor 85, condenser 84 connects successively and constitute the loop; Second vaporizer, 83 two ends also are connected with expansion drum 9 with three-way magnetic valve 7 respectively.Throttle element is one of four big parts of refrigeration system, and effect is to make the liquid of High Temperature High Pressure become the liquid of low-temp low-pressure, reenters heat exchanger and carries out sweat cooling.
Be provided with safety valve 10 and air pump 11 on expansion drum 9, electric controller 12 is connected with expansion drum 9 by air pump 11.
The present embodiment working procedure is as follows, and in conjunction with shown in Figure 1: under the driving of recycle pump 1, circulating liquid enters the radiator 3 of wind-powered electricity generation unit heating component through behind the filtrating equipment 2, and heat is wherein taken away; Enter second vaporizer, 83 release heat of vapour compression refrigerator group 8 then through three-way magnetic valve 7, last circulating liquid is got back to recycle pump 1 through behind the expansion drum 9, finishes cool cycles.
When the expansion drum internal pressure was excessive, safety valve 10 auto-actions carried out pressure release, guaranteed that System Operation is safe and reliable.
Above-listed detailed description is at the specifying of possible embodiments of the present invention, and this embodiment is not in order to limiting claim of the present invention, and the equivalence that all the present invention of disengaging do is implemented or change, all should be contained in the claim of this case.
Claims (2)
1. the dehumidifying of an offshore wind generating group and cooling system is characterized in that: include recycle pump (1), filtrating equipment (2), radiator (3), heating element (6), three-way magnetic valve (7), expansion drum (9) that the head and the tail successively that are arranged in the cabin connect and constitute the loop; On the pipeline that connects between described radiator (3) and the heating element (6), be provided with temperature-detecting device (4), pressure-detecting device (5) successively;
Also comprise vapour compression refrigerator group (8), it comprises throttle element (81), first vaporizer (82), second vaporizer (83), the compressor (85) that is located in the cabin, and being located at condenser (84) in the seawater, described throttle element (81), first vaporizer (82), second vaporizer (83), compressor (85), condenser (84) connect successively and constitute the loop; Described second vaporizer (83) two ends also are connected with expansion drum (9) with three-way magnetic valve (7) respectively.
2. the dehumidifying of offshore wind generating group as claimed in claim 1 and cooling system is characterized in that: be provided with safety valve (10) and air pump (11) on described expansion drum (9), described electric controller (12) is connected with expansion drum (9) by air pump (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110117217A CN102220947B (en) | 2011-05-06 | 2011-05-06 | Dehumidifying and cooling system of offshore wind generating set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110117217A CN102220947B (en) | 2011-05-06 | 2011-05-06 | Dehumidifying and cooling system of offshore wind generating set |
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| CN102220947A true CN102220947A (en) | 2011-10-19 |
| CN102220947B CN102220947B (en) | 2012-09-05 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153951A (en) * | 2014-07-28 | 2014-11-19 | 中国长江三峡集团公司 | Integrated automation system of cooling and fire-fighting for wind generating set |
| CN108180121A (en) * | 2017-12-26 | 2018-06-19 | 北京金风科创风电设备有限公司 | Tower drum heat dissipation system and temperature control method thereof |
| CN108518319A (en) * | 2018-03-09 | 2018-09-11 | 远景能源（江苏）有限公司 | Tower bottom of marine wind generating set cooling and dehumidifying system and control method |
| CN109955713A (en) * | 2017-12-22 | 2019-07-02 | 本田技研工业株式会社 | The cooling system of automotive dynamoelectric machine |
| CN113697311A (en) * | 2021-09-07 | 2021-11-26 | 南通四方罐式储运设备制造有限公司 | Explosion-proof intelligent temperature control tank container |
| CN113958472A (en) * | 2021-10-22 | 2022-01-21 | 中国华能集团清洁能源技术研究院有限公司 | Offshore wind turbine generator cabin wind supply system device and method adopting corrugated plates |
| CN115614236A (en) * | 2022-09-01 | 2023-01-17 | 威海克莱特菲尔风机股份有限公司 | Offshore fan ventilation cooling system capable of cleaning air filtering structure |
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| CN101469893A (en) * | 2007-12-27 | 2009-07-01 | Abb公司 | Air dehumidifier for frequency converter arrangement |
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| CN101761453A (en) * | 2008-11-18 | 2010-06-30 | 维斯塔斯风力系统集团公司 | Wind turbine with a refrigeration system and a method of providing cooling of a heat generating component in a nacelle for a wind turbine |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20050006905A1 (en) * | 2003-05-28 | 2005-01-13 | Jorn Rurup | Cooling arrangement for an offshore wind energy installation |
| CN201148943Y (en) * | 2007-11-30 | 2008-11-12 | 上海电气风电设备有限公司 | Wind and electricity cooling system |
| CN101469893A (en) * | 2007-12-27 | 2009-07-01 | Abb公司 | Air dehumidifier for frequency converter arrangement |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153951A (en) * | 2014-07-28 | 2014-11-19 | 中国长江三峡集团公司 | Integrated automation system of cooling and fire-fighting for wind generating set |
| CN109955713A (en) * | 2017-12-22 | 2019-07-02 | 本田技研工业株式会社 | The cooling system of automotive dynamoelectric machine |
| CN108180121A (en) * | 2017-12-26 | 2018-06-19 | 北京金风科创风电设备有限公司 | Tower drum heat dissipation system and temperature control method thereof |
| CN108180121B (en) * | 2017-12-26 | 2019-10-25 | 北京金风科创风电设备有限公司 | Tower drum heat dissipation system and temperature control method thereof |
| CN108518319A (en) * | 2018-03-09 | 2018-09-11 | 远景能源（江苏）有限公司 | Tower bottom of marine wind generating set cooling and dehumidifying system and control method |
| CN108518319B (en) * | 2018-03-09 | 2023-12-29 | 远景能源有限公司 | Tower bottom cooling and dehumidifying system of offshore wind generating set and control method |
| CN113697311A (en) * | 2021-09-07 | 2021-11-26 | 南通四方罐式储运设备制造有限公司 | Explosion-proof intelligent temperature control tank container |
| CN113958472A (en) * | 2021-10-22 | 2022-01-21 | 中国华能集团清洁能源技术研究院有限公司 | Offshore wind turbine generator cabin wind supply system device and method adopting corrugated plates |
| CN113958472B (en) * | 2021-10-22 | 2023-11-21 | 华能(广东)能源开发有限公司 | Offshore wind power cabin air supply system device and method adopting corrugated plates |
| CN115614236A (en) * | 2022-09-01 | 2023-01-17 | 威海克莱特菲尔风机股份有限公司 | Offshore fan ventilation cooling system capable of cleaning air filtering structure |
| CN115614236B (en) * | 2022-09-01 | 2024-03-12 | 威海克莱特菲尔风机股份有限公司 | Offshore wind turbine ventilation cooling system capable of cleaning air filtering structure |
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