CN111692051A - Cooling and ventilation system of floating wind generating set - Google Patents

Cooling and ventilation system of floating wind generating set Download PDF

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Publication number
CN111692051A
CN111692051A CN202010693080.9A CN202010693080A CN111692051A CN 111692051 A CN111692051 A CN 111692051A CN 202010693080 A CN202010693080 A CN 202010693080A CN 111692051 A CN111692051 A CN 111692051A
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CN
China
Prior art keywords
air
cooling
floating
air cooler
floating wind
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.)
Pending
Application number
CN202010693080.9A
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Chinese (zh)
Inventor
陈帅
侯承宇
董晔弘
仵文松
刘涛
周昊
周舒旎
蒋运和
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CSIC Haizhuang Windpower Co Ltd
Original Assignee
CSIC Haizhuang Windpower Co Ltd
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Filing date
Publication date
Application filed by CSIC Haizhuang Windpower Co Ltd filed Critical CSIC Haizhuang Windpower Co Ltd
Priority to CN202010693080.9A priority Critical patent/CN111692051A/en
Publication of CN111692051A publication Critical patent/CN111692051A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • F03D13/22—Foundations specially adapted for wind motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • F03D13/25—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/60—Cooling or heating of wind motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/56—Casing or covers of separate outdoor units, e.g. fan guards
    • F24F1/58—Separate protective covers for outdoor units, e.g. solar guards, snow shields or camouflage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0003—Exclusively-fluid systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/08—Cooling; Ventilating
    • H01F27/085—Cooling by ambient air
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/08—Cooling; Ventilating
    • H01F27/10—Liquid cooling
    • H01F27/16—Water cooling
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
    • H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
    • H05K7/20927—Liquid coolant without phase change
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
    • H05K7/20945—Thermal management, e.g. inverter temperature control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B2035/4433—Floating structures carrying electric power plants
    • B63B2035/446—Floating structures carrying electric power plants for converting wind energy into electric energy
    • 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
    • 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
    • Y02E10/727—Offshore wind turbines
    • 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
    • Y02E10/728—Onshore wind turbines
    • 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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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Power Engineering (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Wind Motors (AREA)

Abstract

The invention provides a cooling and ventilation system of a floating wind generating set, comprising: the air cooler is arranged on the outer wall of the floating foundation of the floating wind generating set and is positioned above the water surface; the air inlet pipe is arranged on the outer wall of the floating foundation and is positioned above the water surface, and is used for introducing outside air into the floating foundation; the air guide pipe is arranged inside the floating foundation, the upper port of the air guide pipe is communicated with the air cooler, and the lower port of the air guide pipe is positioned below the water surface; the pipeline is sequentially connected with the part to be cooled, the water pump and the air cooler in series to form a loop for circulating cooling liquid; and the controller is respectively electrically connected with the air cooler and the water pump and is used for controlling the on and off of the air cooler and the water pump. The invention can solve the technical problems that the traditional cooling system and ventilation equipment of the floating wind generating set are two sets of independent devices, the manufacturing cost is high, and the cooling effect of the cooling system is not good enough under the high-temperature environment condition.

Description

Cooling and ventilation system of floating wind generating set
Technical Field
The invention relates to the technical field of wind generating sets, in particular to a cooling and ventilation system of a floating wind generating set.
Background
In the construction of offshore wind farms, when the water depth is greater than 60 meters, compared with wind generating sets with fixed foundations, the technical and economic indexes of wind generating sets with floating foundations are greatly improved, the wind generating sets are not limited by the water depth, and the hoisting of the wind generating sets can be simplified, so that the floating wind generating sets have become an inevitable trend for the construction of offshore wind farms with water depths of more than 60 meters.
At present, a cooling system of a floating wind generating set is basically used for radiating and cooling a transformer and a converter by directly using a cooling system of a fixed foundation and using an air-water cooling system. The system takes out heat generated by a transformer and a converter through cooling liquid, conveys high-temperature cooling liquid to an air cooler arranged outside a tower barrel, forcibly sucks air with lower external temperature through a fan, flows through a radiator, cools the high-temperature cooling liquid, and conveys the cooled cooling liquid back to the transformer and the converter for circulation. The cooling system mainly realizes cooling of the cooling liquid by means of heat exchange with external ambient air, so that the cooling performance of the cooling system is directly influenced by the ambient temperature, and the cooling effect is not good enough under the high-temperature ambient condition. For floating wind generating sets with the same heat dissipation power requirement, if the floating wind generating sets are in a high-temperature environment, such as the south China sea, an air cooler with higher heat dissipation capacity needs to be adopted to achieve a preset cooling effect, and therefore the manufacturing cost of the floating wind generating sets is increased.
Meanwhile, the floating foundation is large in size, part of the inner cabin is located below the water surface for a long time, and the natural ventilation effect of the inner space of the floating foundation is poor, so that special ventilation equipment needs to be additionally arranged on the floating wind generating set, sufficient air is provided for workers entering the floating foundation to maintain, and the safety of the workers is guaranteed. Because ventilation is a form of convective heat dissipation, the ventilation device has a certain correlative influence on the cooling effect of the cooling system of the floating wind turbine generator set.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a cooling and ventilation system of a floating wind generating set, which aims to solve the technical problems that the traditional cooling system and ventilation equipment of the floating wind generating set in the prior art are two sets of independent devices, the manufacturing cost is high, and the cooling effect of the cooling system is not good enough under the high-temperature environment condition.
The technical scheme adopted by the invention is that a cooling and ventilation system of a floating wind generating set;
in a first implementation, the method includes:
the air cooler is arranged on the outer wall of the floating foundation of the floating wind generating set and is positioned above the water surface;
the air inlet pipe is arranged on the outer wall of the floating foundation and is positioned above the water surface, and is used for introducing outside air into the floating foundation;
the air guide pipe is arranged inside the floating foundation, the upper port of the air guide pipe is communicated with the air cooler, and the lower port of the air guide pipe is positioned below the water surface;
the pipeline is sequentially connected with the part to be cooled, the water pump and the air cooler in series to form a loop for circulating cooling liquid; and
and the controller is respectively electrically connected with the air cooler and the water pump and is used for controlling the on and off of the air cooler and the water pump.
With reference to the first implementable manner, in a second implementable manner, the water pump, the component to be cooled, and the controller are arranged inside a tower of the floating wind turbine generator system.
With reference to the first or second realizable manner, in a third realizable manner, the components to be cooled include transformers and converters.
In combination with the first implementable manner, in a fourth implementable manner, the air guide duct is installed below a top platform of the floating foundation.
In combination with the first implementation manner, in a fifth implementation manner, the air inlet pipe is arranged at the top of the side wall of the floating foundation, and one end of the air inlet pipe, which is connected with the air inlet, is bent downwards.
In combination with any one of the first, fourth, and fifth realizable manners, in a sixth realizable manner, the protection device further includes a first protection net and a second protection net; the first protective net is arranged at the air inlet of the air inlet pipe, and the second protective net is arranged at the top of the air guide pipe.
In combination with the first implementable manner, in a seventh implementable manner, the area of the air inlet pipe is not less than 2 times of the air duct area of the air guide pipe.
In combination with the first implementable manner, in an eighth implementable manner, the cooling and ventilation system includes a normal operation mode and a maintenance mode;
under the normal working mode, the controller is used for controlling the on and off of the air cooler and the water pump;
in the maintenance mode, the controller is used for controlling the on and off of the air cooler.
With reference to the first implementable manner, in a ninth implementable manner, the air cooler further includes a rain shield, and the rain shield is disposed above the air cooler.
According to the technical scheme, the beneficial technical effects of the invention are as follows:
1. the functions of the two sets of independent devices, namely the cooling system and the ventilation and air exchange device, are integrated into one system, seawater is used as a radiator for heat dissipation, the problem that the cooling effect of the cooling system is not good enough under the high-temperature environment condition can be solved, the problem of ventilation and air exchange inside the floating foundation can be solved, different functions of the two sets of independent devices are achieved through one set of system, and the manufacturing cost is reduced.
2. By using the technical scheme of the invention, the number of parts of the floating wind generating set can be reduced, and the failure rate of the whole machine is reduced.
3. One end of the air inlet pipe, which is connected with the air inlet, is bent downwards, and a protective net is arranged at the air inlet of the air inlet pipe, so that foreign objects can be prevented from entering the floating foundation to cause damage, and the safety is improved. The top of the air guide pipe is provided with the protective net, so that foreign matters or workers can be prevented from falling into the air guide pipe, and the safety is improved.
4. The rain shield can prevent rainwater from dripping on the air cooler to cause corrosive damage to the air cooler, and the service life of the air cooler is prolonged.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a block diagram of the present invention.
Fig. 2 is a block diagram of the system of the present invention.
Reference numerals:
1-floating foundation, 2-pipeline, 3-rain shield, 4-air cooler, 5-air inlet pipe, 6-air guide pipe, 7-water pump, 8-transformer, 9-controller, 20-water surface, 30-tower.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.
Example 1
As shown in fig. 1 and 2, the present invention provides a cooling and ventilation system for a floating wind turbine generator system, comprising:
the air cooler 4 is arranged on the outer wall of the floating foundation 1 of the floating wind generating set and is positioned above the water surface 20;
the air inlet pipe 5 is arranged on the outer wall of the floating foundation 1, is positioned above the water surface 20 and is used for introducing external air into the floating foundation 1;
the air guide pipe 6 is arranged inside the floating foundation 1, the upper port of the air guide pipe 6 is communicated with the air cooler 4, and the lower port of the air guide pipe is positioned below the water surface 20;
the pipeline 2 is sequentially connected with the component to be cooled 8, the water pump 7 and the air cooler 4 in series to form a loop for circulating cooling liquid; and
and the controller 9 is electrically connected with the air cooler 4 and the water pump 7 respectively, and is used for controlling the opening and closing of the air cooler 4 and the water pump 7.
The working principle of example 1 is explained in detail below:
the structure of the cooling and ventilation system of the present embodiment will be further described first.
In the embodiment, preferably, the water pump 7, the component to be cooled 8 and the controller 9 are arranged inside the tower 30 of the floating wind turbine generator system, and the component to be cooled 8 includes a transformer and a converter. Water pump 7 and controller 9 establish and can effectively isolate salt fog, damp and hot influence on the sea in tower section of thick bamboo 30 inside, increase water pump 7 and controller 9's life. The air guide pipe 6 is arranged below a top platform of the floating foundation 1, preferably, the air guide pipe 6 is vertically downwards arranged, and the air channel is vertical, so that a better ventilation effect can be obtained; the lower port of the air guide duct 6 is located below the water surface 20, but is not submerged in the water, but is connected to the bottom air inside the floating foundation 1. The air inlet pipe 5 is arranged at the top of the side wall of the floating foundation 1, and one end of the air inlet pipe 5, which is connected with the air inlet, is bent downwards, so that falling objects can be prevented from entering the floating foundation to cause damage. The duct shape of the air inlet duct 5 is not limited, and may be circular or square, as exemplified in the present embodiment. The air inlet area of the air inlet pipe 5 is not less than 2 times of the air duct area of the air guide pipe 6, namely the air inlet area of the air inlet pipe 5 is 2 times or more than the air duct area of the air guide pipe 6. Therefore, sufficient outside air can enter the floating foundation 1, and particularly, in the embodiment, the area of the air duct is preferably more than 1 square meter for realizing a better air convection effect.
The air cooler 4 is arranged on the outer wall of the floating foundation 1 of the floating wind generating set and is positioned above the water surface 20, and a fan of the air cooler is communicated with the outside air; preferably, the air cooler 4 is installed on the top platform of the floating foundation 1, so that a better air draft effect can be obtained. The connection mode of the pipeline 2 with the air cooler 4 and the component 8 to be cooled is not limited, and in this embodiment, for example, a part of the pipeline may be installed on the outer wall of the housing of the air cooler 4 and the component 8 to be cooled in a spiral manner.
In this embodiment, the cooling and ventilation system has two modes of operation, a normal mode of operation and a maintenance mode.
Under the normal working mode, the floating wind generating set is in the normal operating condition. The floating wind generating set is operated in a grid-connected mode, and the controller 9 is used for controlling the air cooler 4 and the water pump 7 to be turned on and off. The controller 9 sends an instruction to the water pump 7 to start the water pump 7 to work. The coolant starts to circulate in the pipe 2 by the water pump 7, and the controller 9 controls the air cooler 4 to be started when the temperature of the coolant is equal to or higher than a set temperature. The fan of the air cooler 4 rotates, and the air with a low temperature is extracted from the internal space below the water surface of the floating foundation 1 through the air guide pipe 6 to cool the cooling liquid passing through the air cooler 4. Because air cooler 4 extracts the lower air of temperature after from floating formula basis 1 inside, the inside atmospheric pressure of floating formula basis 1 can become low, be less than outside air atmospheric pressure, the higher air of ambient temperature can pass through air-supply line 5 this moment, inside natural entering floating formula basis 1, the lower air intensive mixing of temperature in the in-process that gets into and floating formula basis 1, and be cooled off by external sea water gradually, at last rethread guide duct 6 cools off the coolant liquid through air cooler 4, so circulation. Because the internal space of the floating foundation 1 is large, part of the floating foundation is positioned below the water surface for a long time, and the air temperature of the part below the water surface is lower than that of the air in the external environment, the part below the water surface of the floating foundation 1 can be regarded as a 'radiator', and the heat in the air can be directly taken away through indirect heat exchange with the seawater. Compared with the traditional air cooling system of the floating wind generating set, the cooling and ventilation system has better heat dissipation effect by heat exchange with the external environment air.
In the maintenance mode, a worker is required to enter the floating foundation 1 to maintain the equipment, and the main control system of the floating wind generating set is switched to the maintenance mode. In the maintenance mode, the controller 9 is used to control the air cooler 4 to be turned on and off, and the water pump 7 is not controlled to be turned on and off. At this time, the controller 9 sends an instruction to start the air cooler 4, the air cooler 4 is used as a ventilation device in a maintenance mode to pump out air at the bottom of the floating foundation 1, and fresh air in the external environment naturally enters the floating foundation 1 through the air inlet pipe 5. The circulation is carried out, sufficient fresh air is provided for the interior of the floating foundation 1, and personal safety of workers is guaranteed.
At present, floating foundations of floating wind generating sets mainly comprise four types, namely spar, TLP, semi-submersible and barge, and the cooling and ventilation system of the embodiment can be suitable for two types, namely the semi-submersible and the barge floating foundations. The functions of the two sets of independent devices, namely the cooling system and the ventilation and air exchange device, are integrated into one system, seawater is used as a radiator for heat dissipation, the problem that the cooling effect of the cooling system is not good enough under the high-temperature environment condition can be solved, the problem of ventilation and air exchange inside the floating foundation can be solved, different functions of the two sets of independent devices are achieved through one set of system, and the manufacturing cost is reduced. Meanwhile, the number of parts of the floating wind generating set can be reduced, and the failure rate of the whole machine is reduced.
Example 2
When equipment in the floating foundation 1 is maintained, a worker can enter the floating foundation 1 to operate, and the air guide pipe 6 is arranged in the floating foundation 1 in the embodiment 1, and the area of an air duct of the air guide pipe is more than 1 square meter, so that the worker can fall into the air guide pipe in a missing manner during operation, and potential safety hazards exist. Meanwhile, one end of the air inlet pipe 5, which is connected with the air inlet, is bent downwards, so that although falling objects can be prevented from entering the floating foundation to cause damage, the accidental situations such as birds flying into the floating foundation can not be well prevented, and the potential safety hazard also exists.
In order to solve the technical problem, the cooling and ventilation system is further optimized on the basis of the embodiment 1, and adopts the following technical scheme that the cooling and ventilation system further comprises a first protective net and a second protective net; the first protective net is arranged at the air inlet of the air inlet pipe 5, and the second protective net is arranged at the top of the air guide pipe 6. The shape and material of the protective net are not limited, and in this embodiment, for example, a metal net made of stainless steel may be used, so that the influence of salt mist and damp heat on the sea can be reduced, and the service life of the protective net can be prolonged. The installation manner of the protective net is not limited, and in the embodiment, for example, riveting and screwing manners can be adopted, so that better connection strength is provided, and the vibration influence caused by sea surface bump is resisted.
Through the installation protection network, can prevent that foreign matters such as birds from getting into the inside of floating formula basis and causing the destruction, promote the security. The top of the air guide pipe is provided with the protective net, so that foreign matters or workers can be prevented from falling into the air guide pipe, and the safety is improved.
Example 3
In embodiment 1, as shown in fig. 1, the air cooler 4 is installed on the top platform of the floating foundation 1, and when it rains, rainwater directly falls on the air cooler 4, which may affect the service life of the air cooler 4, such as short-circuit failure.
In order to solve the technical problems, the technical scheme is further optimized on the basis of the embodiment 1, a rain shield is arranged above the air cooler, the shape, the size and the material of the rain shield are not limited, and the rain shield can completely cover the air cooler so that rainwater cannot drip onto the air cooler. The installation manner of the rain shield is not limited, and in the embodiment, for example, riveting and screw connection can be adopted to provide better connection strength to resist the vibration influence caused by sea surface bump.
The rain shield can prevent rainwater from dripping on the air cooler to cause corrosive damage to the air cooler, and the service life of the air cooler is prolonged.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims (9)

1. A cooling and ventilation system for a floating wind turbine generator system, comprising:
the air cooler (4) is arranged on the outer wall of the floating foundation (1) of the floating wind generating set and is positioned above the water surface (20);
the air inlet pipe (5) is arranged on the outer wall of the floating foundation (1), is positioned above the water surface (20), and is used for introducing outside air into the floating foundation (1);
the air guide pipe (6) is arranged inside the floating foundation (1), the upper port of the air guide pipe (6) is communicated with the air cooler (4), and the lower port of the air guide pipe is positioned below the water surface (20);
the pipeline (2) is sequentially connected with the component (8) to be cooled, the water pump (7) and the air cooler (4) in series to form a loop for circulating cooling liquid; and
and the controller (9), the controller (9) is respectively electrically connected with the air cooler (4) and the water pump (7) and is used for controlling the opening and closing of the air cooler (4) and the water pump (7).
2. The cooling and ventilation system of a floating wind turbine generator system of claim 1, wherein: the water pump (7), the component to be cooled (8) and the controller (9) are arranged inside a tower (30) of the floating wind generating set.
3. The cooling and ventilation system of a floating wind power plant according to claim 1 or 2, characterized in that: the component (8) to be cooled comprises a transformer and a converter.
4. The cooling and ventilation system of a floating wind turbine generator system of claim 1, wherein: the air guide pipe (6) is arranged below a top platform of the floating foundation (1).
5. The cooling and ventilation system of a floating wind turbine generator system of claim 1, wherein: the air inlet pipe (5) is arranged at the top of the side wall of the floating foundation (1), and one end, connected with the air inlet, of the air inlet pipe (5) is bent downwards.
6. The cooling and ventilation system of a floating wind turbine generator system of any one of claims 1, 4 and 5, wherein: the device also comprises a first protective net and a second protective net; the first protective net is arranged at an air inlet of the air inlet pipe (5), and the second protective net is arranged at the top of the air guide pipe (6).
7. The cooling and ventilation system of a floating wind turbine generator system of claim 1, wherein: the air inlet area of the air inlet pipe (5) is not less than 2 times of the air duct area of the air guide pipe (6).
8. The cooling and ventilation system of a floating wind turbine generator system of claim 1, wherein: the method comprises a normal working mode and a maintenance mode;
in a normal working mode, the controller (9) is used for controlling the air cooler (4) and the water pump (7) to be switched on and off;
in the maintenance mode, the controller (9) is used for controlling the air cooler (4) to be switched on and off.
9. The cooling and ventilation system of a floating wind turbine generator system of claim 1, wherein: the air cooler is characterized by further comprising a rain shield (3), wherein the rain shield (3) is arranged above the air cooler (4).
CN202010693080.9A 2020-07-17 2020-07-17 Cooling and ventilation system of floating wind generating set Pending CN111692051A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010693080.9A CN111692051A (en) 2020-07-17 2020-07-17 Cooling and ventilation system of floating wind generating set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010693080.9A CN111692051A (en) 2020-07-17 2020-07-17 Cooling and ventilation system of floating wind generating set

Publications (1)

Publication Number Publication Date
CN111692051A true CN111692051A (en) 2020-09-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010693080.9A Pending CN111692051A (en) 2020-07-17 2020-07-17 Cooling and ventilation system of floating wind generating set

Country Status (1)

Country Link
CN (1) CN111692051A (en)

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