CN113833617A - System and method for removing moisture of cabin of offshore wind turbine generator - Google Patents

System and method for removing moisture of cabin of offshore wind turbine generator Download PDF

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Publication number
CN113833617A
CN113833617A CN202111089458.5A CN202111089458A CN113833617A CN 113833617 A CN113833617 A CN 113833617A CN 202111089458 A CN202111089458 A CN 202111089458A CN 113833617 A CN113833617 A CN 113833617A
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ventilator
cabin
humidity
heating device
wind turbine
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CN113833617B (en
Inventor
蔺雪峰
蔡安民
焦冲
李媛
林伟荣
张俊杰
杨博宇
许扬
金强
李力森
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Huaneng Clean Energy Research Institute
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Huaneng Clean Energy Research Institute
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D80/00Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/60Cooling or heating of wind motors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26Drying gases or vapours
    • B01D53/266Drying gases or vapours by filtration
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D17/00Monitoring or testing of wind motors, e.g. diagnostics
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D9/00Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20Wind motors characterised by the driven apparatus
    • F03D9/25Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/80Water
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/06Polluted air
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Sustainable Energy (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Power Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Drying Of Gases (AREA)

Abstract

The invention discloses a dehumidification system and a dehumidification method for an offshore wind turbine generator, which comprises a dehumidification device, a dehumidification device and a fan, wherein the dehumidification device comprises an air filtering device for absorbing moisture, a heating device for heating air in a cabin and a fan capable of promoting air to circularly flow; and the flow guide device is positioned above the dehumidifying device and is used for blowing the airflow to the cabin component according to a certain direction. The invention can ensure that the airflow flows in the three-dimensional space in the cabin, and can also blow the airflow to the cabin components according to a specific direction, thereby achieving the aim of removing moisture integrally and prolonging the service life of the unit equipment.

Description

System and method for removing moisture of cabin of offshore wind turbine generator
Technical Field
The invention belongs to the technical field of offshore wind power, and particularly relates to a system and a method for removing moisture of an offshore wind turbine generator room.
Background
Due to the particularity of the operating environment of the offshore wind turbine, high reliability and low failure rate are required. The air current humidity of sea is high, salt fog is heavy, and although the marine unit has improved the protection level to the selection type of relevant part and components and parts at the design stage, along with the increase of operating time and the carelessness of operation and maintenance work, the unit is very easily corroded by sea wind, and main part and components and parts all are in the cabin. Therefore, the protection of the equipment in the cabin against moisture and salt mist is particularly good.
When the offshore wind turbine generator system operates, main components of the offshore wind turbine generator system, such as a main shaft, a gear box, a generator and the like, generate heat, and in addition, the ventilation and heat dissipation equipment operates, the humidity in the engine room can be kept at a better level under the action of heat radiation, so that the erosion of salt spray is reduced. However, when the wind speed is low, the unit has a fault or is in bad weather, after the unit is shut down for a period of time, sufficient heat is not generated, the humidity in the cabin rises, salt mist contained in the humidity can corrode equipment and components in the cabin, the service life of the unit equipment is influenced, and even the components are severely short-circuited to generate larger loss.
At present, self-used heating devices are installed in main large components and a control cabinet in an offshore wind turbine generator cabin, so that on one hand, low temperature is prevented from damaging equipment, and on the other hand, certain moisture and salt mist removing and preventing effects are achieved. However, only by means of these heating devices, the problems of local or temporary dehumidification and salt mist prevention can be solved, and the purpose of dehumidification cannot be achieved as a whole.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a system and a method for removing moisture of an offshore wind turbine generator room.
In order to achieve the purpose, the invention provides the following technical scheme:
an offshore wind turbine nacelle dehumidification system, comprising:
a dehumidifying device including an air filtering device for absorbing moisture, a heating device for heating air in the cabin, and a ventilator for promoting a circulation flow of the air;
the flow guide device is positioned above the dehumidifying device and used for guiding airflow to blow towards the cabin part according to a certain direction
Further, the method also comprises the following steps: the temperature and humidity monitoring device is used for monitoring the temperature and the humidity in the cabin of the offshore wind turbine generator;
and the microprocessor is used for generating a logic judgment signal for controlling the heating device and the ventilator according to the signal sent by the temperature and humidity detection device.
Further, the method also comprises the following steps: and the air exhaust facility is arranged at the tail part of the cabin and is used for exhausting airflow out of the cabin.
Further, the air exhaust facility is a vent hole.
Furthermore, the ventilator is provided with two stages of power, wherein the first stage of power is half rated power, and the second stage of power is rated power.
Furthermore, the number of the flow guide devices is four, and outlets of the flow guide devices are respectively positioned at 80%, 60%, 40% and 20% of the vertical height of the cabin.
Further, the outlet directions of the flow guide devices face the tail of the cabin.
Further, the outlet direction of the flow guide device is arranged towards the axis of the cabin.
The invention also provides a method for removing the moisture of the cabin of the offshore wind turbine generator, which comprises the following steps:
s1, setting temperature limits T + and T-, humidity limits H + and H-, wherein: t + is more than T-, and H + is more than H-;
s2, controlling the heating device and the ventilator according to the dehumidifying logic:
when the current temperature value is lower than T-and the humidity value is lower than H +, starting the heating device and the ventilator, and enabling the ventilator to work in a primary power state until the temperature value is higher than T-, and closing the heating device and the ventilator;
when the current temperature value is lower than T-and the humidity value is higher than H +, the heating device and the ventilator are started, the ventilator works in a secondary power state, and the heating device and the ventilator are turned off until the temperature value is higher than T-and the humidity value is lower than H-;
when the current temperature value is between T < - > and T < + > and the humidity value is higher than H < + >, starting the heating device and the ventilator, enabling the ventilator to work in a secondary power state until the humidity value is lower than H < - >, and closing the heating device and the ventilator;
when the current temperature value is higher than T + and the humidity value is lower than H +, the heating device does not work, the ventilator is started, the ventilator works in a primary power state until the temperature value is lower than T-and the humidity value is lower than H-, and the heating device and the ventilator are closed;
and when the current temperature value is higher than T + and the humidity value is higher than H +, the heating device does not work, the ventilator is started, the ventilator works in a secondary power state until the temperature value is lower than T + and the humidity value is lower than H-, and the ventilator is turned off.
Further, in step S2, when the current temperature value is between T-T + and the humidity value is lower than H +, the heating device and the ventilator are not operated.
Compared with the prior art, the technical scheme of the invention has the following advantages:
the invention provides a dehumidifying system for an offshore wind turbine generator cabin, wherein an air filtering device is used for absorbing moisture in cabin air and filtering impurities and dust in the air; the heating device is used for heating air in the engine room; the ventilator is used for providing power for sucked air and promoting the air in the cabin to circularly flow; this remove damp device structural design is reasonable, can guarantee that the inside humiture of cabin is suitable, plays the effect of removing damp and preventing salt fog to the major part in the cabin and electrical components, can effectively remove damp to the operational environment in the offshore wind turbine generator system cabin and handle, can accomplish on the whole and remove damp, reaches the purpose of preventing salt fog erosion, protection unit.
Furthermore, the temperature and the humidity in the unit cabin are detected in time through the temperature and humidity detection device and then sent to the microprocessor, the microprocessor receives signals sent by the temperature and humidity detection device, logic judgment signals are generated according to the current temperature and humidity value in the unit cabin, and the heating device and/or the ventilator are controlled to be started, so that most components and electric components in the unit cabin work in a proper temperature and humidity range all the time, and the service life of unit equipment is prolonged.
Furthermore, the air exhaust facility is arranged at the tail part of the cabin, the structure is a ventilation hole, and the air exhaust facility can be matched with a dehumidifying device to exhaust airflow out of the cabin more quickly, so that the working efficiency of a dehumidifying system is improved.
Furthermore, the proper working power can be selected by the ventilator according to the temperature and humidity values in the cabin, and the ventilator saves resources and reduces the cost of the dehumidifying system on the basis of ensuring the dehumidifying efficiency.
Furthermore, the four flow guide devices are matched in height, so that the continuity of air flow flowing at the front end and the rear end of the cabin can be ensured, and the ventilation efficiency in the cabin is improved.
Furthermore, the direction of the outlet of the flow guide device faces the tail of the engine room and deviates to the axis of the engine room, so that the airflow can be blown to the engine room components according to the direction, and the dehumidifying and cooling efficiency of the engine room components is improved.
The invention also provides a method for dehumidifying the marine wind turbine generator room, which scientifically sets the threshold value of the temperature and the humidity according to the designed operating temperature and humidity range and the actual operating environment of the generator, and then controls the operation of the heating device and the ventilator according to the current temperature and humidity value in the generator room.
Drawings
FIG. 1 is a top view of the moisture removal device arrangement of the present invention;
FIG. 2 is a side view of the moisture removal device arrangement of the present invention;
FIG. 3 is a schematic view of the height arrangement of the deflector of the present invention;
FIG. 4 is a schematic view of the orientation of the deflector of the present invention;
FIG. 5 is a block diagram of the moisture removal system of the present invention;
in the figure: the device comprises a dehumidifying device at A-A, a dehumidifying device at B-B, a dehumidifying device at C-C, a dehumidifying device at D-D, an outlet of a flow guide device at A '-A, an outlet of a flow guide device at B' -B, an outlet of a flow guide device at C '-C, an outlet of a flow guide device at D' -D and an E-frame.
Detailed Description
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention will be described in detail with reference to the following embodiments.
The structural block diagram of the offshore wind turbine generator room dehumidifying system provided by the invention is shown in fig. 1, and the dehumidifying system comprises:
the dehumidifying device comprises an air filtering device, a heating device and a ventilator. The air filtering device can absorb moisture in the air, ensure the dryness of the air and filter out impurities and dust in the sucked air; the heating device can heat the air in the engine room and dehumidify and dry the engine room components; the ventilator is used for providing power for air suction, promoting air circulation flow and accelerating dehumidification and drying in the engine room.
The four diversion devices are respectively positioned above the four dehumidifying devices and can guide airflow to blow to the engine room component in a certain direction;
specifically, the dehumidifying devices are positioned at the bottom of the cabin, so that the interior of the cabin of the offshore wind turbine can be dehumidified, two groups of the dehumidifying devices are arranged, namely four dehumidifying devices, according to the size of the cabin, the two groups of the dehumidifying devices are positioned in the transverse direction and are symmetrically distributed along the axis of the cabin, and the two groups of the dehumidifying devices are positioned in the longitudinal direction and are respectively close to the impeller side and the middle part of the cabin, as shown in fig. 1 and 2, and the arrangement method can ensure the continuity of the air flow at the front end and the rear end of the cabin.
The flow guiding devices are respectively positioned above the moisture removing devices, so that the airflow can smoothly flow in a three-dimensional space in the unit cabin; the vertical height from the rack to the top of the nacelle is recorded as Ch (cabin height), and the outlets of the flow guide devices are respectively positioned at the height positions of 80%, 60%, 40% and 20% of the rack E, specifically: the outlet A 'of the flow guide device above the dehumidifying device A is positioned at a position 80% Ch away from the rack, the outlet B' of the flow guide device above the dehumidifying device B is positioned at a position 60% Ch away from the rack, the outlet C 'of the flow guide device above the dehumidifying device C is positioned at a position 40% Ch away from the rack, and the outlet D' of the flow guide device above the dehumidifying device D is positioned at a position 20% Ch away from the rack, as shown in FIG. 3, the outlets of the flow guide devices are matched in height, so that the airflow can be ensured to fully flow in the three-dimensional space in the machine room, parts in the machine room are blown by the airflow as much as possible, and moisture and salt fog can be removed from large parts and electrical components in the machine room of the unit.
The direction of the outlet of the flow guide device is specifically set as follows: the outlet A 'of the flow guiding device above the moisture removing device A is deviated to the axis of the cabin and is deviated to 45 degrees towards the tail of the cabin, the outlet B' of the flow guiding device above the moisture removing device B is deviated to the axis of the cabin and is deviated to 45 degrees towards the tail of the cabin, the outlet C 'of the flow guiding device above the moisture removing device C is deviated to the axis of the cabin and is deviated to 45 degrees towards the tail of the cabin, the outlet D' of the flow guiding device above the moisture removing device D is deviated to the axis of the cabin and is deviated to 45 degrees towards the tail of the cabin, as shown in figure 4, by setting the proper direction of the outlet of the flow guiding device, the air flow can be ensured to be fully flowed in the three-dimensional space in the unit cabin, and can be blown to the unit cabin part in the direction of 45 degrees, the arrangement method can effectively remove moisture and prevent salt mist for large parts and electrical components in the engine room of the unit.
Specifically, the method further comprises the following steps: the temperature and humidity monitoring device is used for monitoring the temperature and the humidity in the cabin of the offshore wind turbine generator;
and the microprocessor is used for generating a logic judgment signal for controlling the heating device and the ventilator according to the signal sent by the temperature and humidity detection device.
Specifically, the temperature and humidity monitoring device sends the detected temperature and humidity value to the microprocessor through a signal line, and the microprocessor generates a logic judgment signal according to the current temperature and humidity value inside the engine room, so that the heating device and/or the ventilator in the engine room of the unit are controlled to be started or closed, and most components and electric components in the engine room are enabled to work within a proper temperature and humidity range all the time.
Specifically, the method further comprises the following steps: the air exhaust facility is arranged at the tail part of the cabin and is used for exhausting airflow out of the cabin; the structure of the air exhaust facility is a vent hole. The air exhaust facility arranged at the tail part of the engine room can be matched with the dehumidifying device, so that the air flow in the engine room can be exhausted out of the engine room more quickly, and the working efficiency of a dehumidifying system is improved.
The sea wind turbine generator room dehumidifying system provided by the invention can perform the functions of dehumidifying and preventing salt fog on large parts and electrical components in the generator room through reasonably arranging the position of the dehumidifying device and the height and direction of the flow guide device, can achieve the aim of dehumidifying on the whole, and prolongs the service life of unit equipment.
The invention also provides a method for removing the moisture of the cabin of the offshore wind turbine generator, which comprises the following steps:
s1, setting temperature limits T + and T-, humidity limits H + and H-, wherein: t + is more than T-, and H + is more than H-;
s2, controlling the heating device and the ventilator according to the dehumidifying logic:
in the first situation, when a temperature and humidity detection device detects that the temperature value in the engine room of the unit is lower than T-and the humidity value is lower than H +, the result is transmitted to a microprocessor, at the moment, the temperature in the engine room of the unit is lower, the humidity is basically proper, the air is dry, the microprocessor simultaneously starts a heating device and a ventilator according to the situation, the ventilator only needs to work in a half-rated power state until the temperature value is higher than T-, namely the temperature value in the engine room of the unit is in a proper range, and then the heating device and the ventilator are closed;
in a second situation, when the temperature and humidity detection device detects that the temperature value in the current unit cabin is lower than T < - > and the humidity value is higher than H < + >, the result is transmitted to the microprocessor, at the moment, the temperature in the unit cabin is lower, the humidity is higher, and the air is humid, the microprocessor starts the heating device and the ventilator according to the situations, because the humidity in the unit cabin is higher, the ventilator needs to work in a rated power state until the temperature value is higher than T < - > and the humidity value is lower than H < - >, the temperature value in the unit cabin is in a proper range, the humidity value is lower, the air is dried, then the heating device and the ventilator are closed, and the humidity value is reduced to H < - > so as to prevent the humidity of the unit cabin from being increased again in a short time;
in a third situation, when the temperature and humidity detection device detects that the current temperature value in the unit cabin is between T < - > and T < + > and the humidity value is higher than H < + >, the result is transmitted to the microprocessor, at the moment, the temperature in the unit cabin is proper, the humidity is high, the air is humid, the microprocessor starts the heating device and the ventilator according to the situation, and the ventilator needs to work in a rated power state due to the fact that the humidity in the unit cabin is high until the humidity value is lower than H < - >, the humidity value in the unit cabin is lower, the air is dry, then the heating device and the ventilator are closed, and the humidity value is reduced to H < - > so as to prevent the humidity of the unit cabin from rising again in a short time;
in the fourth situation, when the temperature and humidity detection device detects that the temperature value in the current unit cabin is higher than T + and the humidity value is lower than H +, the result is transmitted to the microprocessor, at the moment, the temperature in the unit cabin is higher, the humidity is basically proper, the air is dry, the microprocessor does not start the heating device according to the situation, only the ventilator needs to be started, and the ventilator only needs to work in a half-rated power state until the temperature value is lower than T-, namely the temperature value in the unit cabin is in a proper range, and then the ventilator is turned off;
and fifthly, when the temperature and humidity detection device detects that the temperature value in the current unit cabin is higher than T + and the humidity value is higher than H +, the result is transmitted to the microprocessor, at the moment, the temperature in the unit cabin is higher, the humidity is higher, the air is humid, the microprocessor does not start the heating device according to the conditions, only the ventilator needs to be started, and as the humidity in the unit cabin is higher, the ventilator needs to work in a rated power state until the temperature value is lower than T + and the humidity value is lower than H-, namely the temperature value in the unit cabin is in a proper range, and meanwhile, the humidity value is lower, the air is dried, then the ventilator is turned off, and the humidity value is reduced to H-so as to prevent the humidity of the unit cabin in a short time from being increased again.
Specifically, in step S2, when the current temperature value in the cabin is between T- ~ T + and the humidity value is lower than H +, the temperature and humidity in the cabin of the unit does not affect the operation of the equipment, and neither the heating device nor the ventilator works.
When the humidity in the unit cabin is high and the humidity value is higher than H + and the air is humid, the ventilator needs to work in a secondary power state to remove the moisture of the unit cabin; when the humidity in the unit cabin is basically proper, namely the humidity value is lower than H +, and the air is dried, the ventilator only needs to work in a first-level power state to mainly play a role in cooling the unit cabin. This setting has saved the resource on the basis of guaranteeing moisture removal system work efficiency, has reduced moisture removal system's cost.
According to the method for dehumidifying the marine wind turbine generator room, the temperature and humidity threshold values are set scientifically according to the designed operating temperature and humidity range and the actual operating environment of the generator set, and then the operation of the heating device and the ventilator is controlled according to the current temperature and humidity value in the generator set room.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. A kind of offshore wind turbine generator cabin removes the damp system, characterized by comprising:
a dehumidifying device including an air filtering device for absorbing moisture, a heating device for heating air in the cabin, and a ventilator for promoting a circulation flow of the air;
and the flow guide device is positioned above the dehumidifying device and used for guiding airflow to blow to the cabin component according to a certain direction.
2. The offshore wind turbine nacelle de-wetting system of claim 1, further comprising: the temperature and humidity monitoring device is used for monitoring the temperature and the humidity in the cabin of the offshore wind turbine generator;
and the microprocessor is used for generating a logic judgment signal for controlling the heating device and the ventilator according to the signal sent by the temperature and humidity detection device.
3. The offshore wind turbine nacelle de-wetting system of claim 1, further comprising: and the air exhaust facility is arranged at the tail part of the cabin and is used for exhausting airflow out of the cabin.
4. The offshore wind turbine nacelle dehumidifying system of claim 3 wherein the ventilation means is a vent.
5. The offshore wind turbine nacelle dehumidifying system of claim 1 wherein the ventilator is provided with two stages, one stage being half rated and the second stage being rated.
6. The offshore wind turbine nacelle dehumidification system of claim 1, wherein four diversion devices are provided, and wherein outlets of the diversion devices are located at 80%, 60%, 40% and 20% of a vertical height of the nacelle, respectively.
7. The offshore wind turbine nacelle de-wetting system of claim 1, wherein the outlet of the flow guiding device is directed towards the aft portion of the nacelle.
8. The offshore wind turbine nacelle moisture removal system of claim 7, wherein the outlet of the deflector is oriented towards the nacelle axis.
9. A method for removing moisture from an offshore wind turbine generator cabin is characterized by comprising the following steps:
s1, setting temperature limits T + and T-, humidity limits H + and H-, wherein: t + is more than T-, and H + is more than H-;
s2, controlling the heating device and the ventilator according to the dehumidifying logic:
when the current temperature value is lower than T-and the humidity value is lower than H +, starting the heating device and the ventilator, and enabling the ventilator to work in a primary power state until the temperature value is higher than T-, and closing the heating device and the ventilator;
when the current temperature value is lower than T-and the humidity value is higher than H +, the heating device and the ventilator are started, the ventilator works in a secondary power state, and the heating device and the ventilator are turned off until the temperature value is higher than T-and the humidity value is lower than H-;
when the current temperature value is between T < - > and T < + > and the humidity value is higher than H < + >, starting the heating device and the ventilator, enabling the ventilator to work in a secondary power state until the humidity value is lower than H < - >, and closing the heating device and the ventilator;
when the current temperature value is higher than T + and the humidity value is lower than H +, the heating device does not work, the ventilator is started, the ventilator works in a primary power state until the temperature value is lower than T-and the humidity value is lower than H-, and the heating device and the ventilator are closed;
and when the current temperature value is higher than T + and the humidity value is higher than H +, the heating device does not work, the ventilator is started, the ventilator works in a secondary power state until the temperature value is lower than T + and the humidity value is lower than H-, and the ventilator is turned off.
10. The method of claim 9, wherein in step S2, when the current temperature value is between T-T + and the humidity value is lower than H +, the heating device and the ventilator are not operated.
CN202111089458.5A 2021-09-16 2021-09-16 Cabin dehumidification system and method for offshore wind turbine generator Active CN113833617B (en)

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