CN102953938B - Corrosion-resistant system and wind turbine generator system - Google Patents
Corrosion-resistant system and wind turbine generator system Download PDFInfo
- Publication number
- CN102953938B CN102953938B CN201110240459.5A CN201110240459A CN102953938B CN 102953938 B CN102953938 B CN 102953938B CN 201110240459 A CN201110240459 A CN 201110240459A CN 102953938 B CN102953938 B CN 102953938B
- Authority
- CN
- China
- Prior art keywords
- air
- cabin
- freezing
- type dehumidifier
- positive pressure
- 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.)
- Active
Links
Classifications
-
- 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
Abstract
The invention discloses a corrosion-resistant system and a wind turbine generator system. The corrosion-resistant system comprises a micro-positive pressure device and an air duct, which are connected with each other. The micro-positive pressure device is used for being communicated with a closed space, dehumidifies air in the micro-positive pressure device and outputs dehumidified clean air to the closed space, and accordingly atmospheric pressure in the closed space is higher than outside atmospheric pressure. The air duct comprises an extravehicular air inlet and an air outlet, which are communicated with each other through a through groove, the air outlet is connected with the micro-positive pressure device, and the extravehicular air inlet is used for guiding outside air to the micro-positive pressure device. Corrosion resistance of the parts can be achieved effectively by the corrosion-resistant system and the wind turbine generator system.
Description
Technical field
The present invention relates to wind power generating set aseptic technic, particularly relate to a kind of anti-corrosion system and wind power generating set.
Background technique
The relative moisture of air is the principal element affecting steel corrosion speed, and below critical relative moisture, iron and steel hardly corrosion phenomenon occurs.The critical relative moisture that corrosion phenomenon occurs iron and steel in normal air is about 65%, but if doped with salinity in air, so the critical relative moisture value of iron and steel generation corrosion phenomenon can reduce.
At present, land wind energy turbine set is tending towards saturated, and Wind turbines single-machine capacity also constantly increases, and the development & application of Wind turbines progressively turns to marine wind electric field.Because Marine atmosphere is rich in salinity and relative moisture is very high, Marine atmosphere is very serious to the corrosion of offshore wind turbine.The schematic diagram of Wind turbines as shown in Figure 1.Wind turbines comprises tower cylinder 1, cabin (not shown) and be located at the engine room cover 2 of nacelle exterior, wheel hub (not shown), blade 3 and the hubcap 4 be located at outside wheel hub.Tower cylinder 1 supports cabin, is fixedly connected with between cabin and wheel hub by main shaft.Wheel hub is fixedly connected with blade 3.The etch-proof measure of existing offshore wind turbine mainly contains: seal Wind turbines, to the mechanical part anticorrosion with painting coating on Wind turbines, seal separately the regulator cubicle containing a large amount of electronic parts and components on Wind turbines.
At least there is following problem in prior art: prior art adopts hairbrush to seal Wind turbines, and hairbrush gap is large, and salinity and wet air are still by sealing hairbrush ingress engine cabin; The anticorrosive coat of mechanical part spraying is easily scratched and comes off, thus mechanical part is corroded; Seal separately implementation complexity, with high costs and poor effect to regulator cubicle, the electrical connector of regulator cubicle outside is easy to occur the corrosion characteristics such as hickie.
Summary of the invention
The invention provides a kind of anti-corrosion system and wind power generating set, in order to effectively to realize the corrosion protection of parts.
The invention provides a kind of anti-corrosion system, wherein:
Comprise micro positive pressure device and air channel;
Described micro positive pressure device is used for being communicated with enclosed space, carries out dehumidification treatments to the air entering described micro positive pressure device, and exports the cleaned air after process to described enclosed space, is greater than outside atmosphere pressure to make the atmospheric pressure in described enclosed space;
Described air channel comprises by the mutually through intake grill out of my cabin of groove and exhaust outlet, and described exhaust outlet is connected with described micro positive pressure device, and described intake grill is out of my cabin used for outside air to be directed to described micro positive pressure device.
Anti-corrosion system as above, preferably:
Described micro positive pressure device comprises freezing-type dehumidifier and axial-flow blower;
The inlet opening of described freezing-type dehumidifier and the exhaust outlet in described air channel are tightly connected, and to carry out dehumidification treatments to the air entering described freezing-type dehumidifier, the delivery outlet of described freezing-type dehumidifier is used for the cleaned air after described enclosed space input dehumidifying;
Described axial-flow blower is fixedly installed on the inside of described groove, flows to described freezing-type dehumidifier to guide air in described groove along described groove axial direction;
The air inlet out of my cabin in described air channel is provided with suction valve out of my cabin.
Anti-corrosion system as above, preferably:
Described groove offers intake grill in cabin, in described cabin, intake grill is between described intake grill out of my cabin and described axial-flow blower, and in described cabin, intake grill is communicated with described enclosed space;
In described cabin, intake grill is provided with suction valve in cabin.
Anti-corrosion system as above, preferably: also comprise low efficient filter screen, described low efficient filter screen hides on described intake grill out of my cabin, to carry out coarse filtration to the air entering described air channel.
Anti-corrosion system as above, preferably: also comprise high efficiency pariculate air, described high efficiency pariculate air hides on the delivery outlet of described freezing-type dehumidifier, carefully filters with the cleaned air exported described freezing-type dehumidifier.
Anti-corrosion system as above, preferably: also comprise humidity transducer, described humidity transducer and described freezing-type dehumidifier are electrically connected, to start or stop described freezing-type dehumidifier according to the humidity parameter detected.
As above arbitrary described anti-corrosion system, preferably: also comprise differential pressure pickup, described differential pressure pickup and described freezing-type dehumidifier are electrically connected, to start or stop described freezing-type dehumidifier according to the pressure parameter detected.
As above arbitrary described anti-corrosion system, preferably: also comprise back-up power, described back-up power is electrically connected with described freezing-type dehumidifier and axial-flow blower respectively.
Anti-corrosion system provided by the invention, utilize micro positive pressure device, in enclosed space, form micro positive pressure environment, be greater than atmospheric pressure in outside air to make the atmospheric pressure in enclosed space, enter enclosed space to avoid outside air, thus realize etch-proof object.
The present invention also provides a kind of wind power generating set, comprises tower cylinder, cabin and be located at the engine room cover of described nacelle exterior, and described tower cylinder supports described cabin, it is characterized in that:
Also comprise the arbitrary described anti-corrosion system of the present invention; Described corrosion protection system is communicated with the inside of described engine room cover;
Described engine room cover offers for the through hole to the air of described engine room cover inside input after described anti-corrosion system process.
Wind power generating set as above, preferably:
Described tower cylinder is provided with sealing plate apart from 2m-4m place bottom described engine room cover, and described sealing plate is fastened on described tower cylinder inwall, so that described tower cylinder is divided into mutually isolated two-part.
Wind power generating set provided by the invention, has anti-corrosion system, in the space that can enclose at engine room cover, hubcap and tower cylinder, effectively forms micro positive pressure environment, thus effectively prevent outside air and enter, thus serves good anticorrosion ability.
Accompanying drawing explanation
Fig. 1 is the partial structurtes schematic diagram of Wind turbines in prior art.
The structural representation of the anti-corrosion system that Fig. 2 provides for the embodiment of the present invention one.
The structural representation of the anti-corrosion system that Fig. 3 provides for the embodiment of the present invention two.
The partial structurtes schematic diagram of the wind power generating set that Fig. 4 A provides for the embodiment of the present invention three.
Fig. 4 B is the region being in micro positive pressure environment after wind power generating set being arranged sealing plate.
Fig. 4 C air flow schematic diagram that to be freezing-type dehumidifier dehumidify to air out of my cabin.
Fig. 4 D is the air flow schematic diagram that freezing-type dehumidifier dehumidifies to air in cabin.
Reference character:
1-tower cylinder; 2-engine room cover; 3-blade;
4-hubcap; 5-micro positive pressure device; 6-air channel;
7-low efficient filter screen; 8-high efficiency pariculate air; Intake grill in 9-cabin;
Suction valve in 10-cabin; 11-humidity transducer; 12-differential pressure pickup;
13-back-up power; 14-brine discharge pipe; 15-is suction valve out of my cabin;
16-sealing plate; 21-through hole; 51-freezing-type dehumidifier;
52-axial-flow blower; 53-delivery outlet; 61-groove;
62-is intake grill out of my cabin; 63-exhaust outlet.
Embodiment
For making the object of the embodiment of the present invention, technological scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technological scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The structural representation of the anti-corrosion system that Fig. 2 provides for the embodiment of the present invention one, describes the structure of anti-corrosion system in detail below in conjunction with Fig. 2.
The embodiment of the present invention one provides a kind of anti-corrosion system, comprising micro positive pressure device 5 and air channel 6; Micro positive pressure device 5, for being communicated with enclosed space, carries out dehumidification treatments to the air entering micro positive pressure device 5, and exports the cleaned air after process to enclosed space, is greater than outside atmosphere pressure to make the atmospheric pressure in enclosed space; Air channel 6 comprises by the mutually through intake grill out of my cabin 62 of groove 61 and exhaust outlet 63, and exhaust outlet 63 is connected with micro positive pressure device 5, and intake grill 62 is for being directed to micro positive pressure device 5 by outside air out of my cabin.
The embodiment of the present invention provides a kind of anti-corrosion system, its principle utilizes micro positive pressure device, micro positive pressure environment is formed in enclosed space, atmospheric pressure in outside air is greater than to make the atmospheric pressure in enclosed space, enter enclosed space to avoid outside air, thus realize etch-proof object.The anti-corrosion system that the embodiment of the present invention provides, inner anti-corrosion system to be arranged on enclosed space, but in actual applications, anti-corrosion system can also be arranged on enclosed space outside, micro positive pressure device is communicated with enclosed space, and the gas that micro positive pressure device processes enters enclosed space via both connectivity parts.In addition, the situation needing the air in enclosed space to be carried out to humid control may be there is, pipeline now can be set and the wet air in enclosed space be pumped intake grill to air channel, to be delivered to micro positive pressure device, and then air is processed, to play the object strengthening anticorrosion ability, specifically vide infra.So-called micro positive pressure environment, refers to the atmospheric pressure 50-2500Pa more powerful in the barometric pressure outside enclosed space in enclosed space.
Ambient air is via intake grill out of my cabin, enter air channel, micro positive pressure device is arrived subsequently via exhaust outlet, micro positive pressure device carries out dehumidification treatments to air, then the cleaned air after process is exported to enclosed space, air in enclosed space increases, and pressure increases, and makes the atmospheric pressure of enclosed space inside be greater than outside atmospheric pressure.
The preferred implementation of micro positive pressure device is: micro positive pressure device 5 comprises freezing-type dehumidifier 51 and axial-flow blower 52; The inlet opening of freezing-type dehumidifier 51 and the exhaust outlet 63 in air channel 6 are tightly connected, and to carry out dehumidification treatments to the air entering freezing-type dehumidifier 51, the delivery outlet 53 of freezing-type dehumidifier 51 is for inputting the cleaned air after dehumidifying to enclosed space; Axial-flow blower 52 is fixedly installed on the inside of groove 61, flows to freezing-type dehumidifier 51 to guide air in groove 61 along groove 61 axial direction; Intake grill out of my cabin 62 place in air channel 6 is provided with suction valve 15 out of my cabin.In the present embodiment, the water that dehumidifying produces is discharged via brine discharge pipe 14.
Introduce structure and the working principle of freezing-type dehumidifier below in detail.Freezing-type dehumidifier comprises compressor, vaporizer, condenser and working medium.The exhaust outlet in air channel is connected with the inlet opening of compressor particularly, the wet air inputted by air channel becomes high temperature and high pressure gas after compressor compresses, when evaporator, the working medium of liquid state absorbs heat vaporization, and air is subject to cooling rear large quantity of moisture and condenses thus play exsiccation.In the process of condensate moisture, the salinity in air is dissolved in water, to realize the effect of desalination simultaneously.In condenser subsequently, the air after dehumidifying cools the gaseous working medium in condenser, makes it revert to liquid state, thus forms a circulation.In order to resist the corrosive action of saliferous wet air, freezing-type dehumidifier is inner, and particularly compressor and vaporizer must adopt special measure to ensure anti-corrosion capacity, such as plate anticorrosive coat.In various embodiments of the present invention, be that the elaboration carried out independently is set with axial-flow blower and freezing-type dehumidifier, in practical application, also axial-flow blower can be integrated in dehumidifier.In the moisture that freezing-type dehumidifier is removed, be dissolved with a large amount of salinities, salt solution is got rid of via brine discharge pipe.
The above-mentioned way of realization of micro positive pressure device effectively can remove salinity in air and moisture, and total is simple, dehumidifying desalination effective.When selecting freezing-type dehumidifier, because freezing-type dehumidifier is positioned at enclosed space inside, the spatial overall in conjunction with positive pressure environment to be formed is amassed, and the main parameter considered is ventilation, and the volume of freezing-type dehumidifier.
In practical application, the air entering air channel doped with large particle dust and water droplet, may enter air channel for preventing large granular impurity; further; anti-corrosion system also comprises low efficient filter screen 7, and low efficient filter screen 7 hides on intake grill 62 out of my cabin, to carry out coarse filtration to the air entering air channel 6.In addition, the mesh size of low efficient filter screen can be as far as possible little under the prerequisite not affecting air channel intake velocity.
Under some particular surroundingss, such as marine high humidity hypersaline environment, salt content in air is very high, after the dehumidifying of freezing-type dehumidifier removes Ficus caricaL, still likely with short grained salt in air, i.e. dry salt particle, so further, anti-corrosion system also comprises high efficiency pariculate air 8, high efficiency pariculate air 8 hides on the delivery outlet 53 of freezing-type dehumidifier 51, carefully filters with the cleaned air exported freezing-type dehumidifier 51.
High efficiency pariculate air effectively can remove the dry salt particle adulterated in air, to promote the quality of freezing-type dehumidifier delivery air further.
The anti-corrosion system that the embodiment of the present invention one provides, compact structure, reliable in function, anticorrosion ability is good, and is particularly useful for offshore wind farm unit etc. and needs to carry out dehumidifying except the occasion of Ficus caricaL to air.
The structural representation of the anti-corrosion system that Fig. 3 provides for the embodiment of the present invention two, describes the structure of anti-corrosion system in detail below in conjunction with Fig. 3.
The embodiment of the present invention two, on the technological scheme basis of embodiment one, preferably, groove 61 offers intake grill 9 in cabin, and in cabin, intake grill 9 is out of my cabin between intake grill 62 and axial-flow blower 52, and in cabin, intake grill 9 is communicated with enclosed space; Intake grill 9 is provided with suction valve 10 in cabin in cabin.Hold above-mentioned, be in enclosed space for anti-corrosion system inner, to offer in cabin after intake grill, in cabin, intake grill is directly communicated with enclosed space, it should be noted that, if anti-corrosion system is in enclosed space outside, in cabin, intake grill and enclosed space can pass through pipeline connection.
Further, anti-corrosion system is carrying out outside air dehumidifying except on the basis of Ficus caricaL, can also control the humidity of enclosed space inside, with when the humidity of enclosed space inside exceedes settings, the air of enclosed space inside is processed, to reduce the humidity of the air in enclosed space, thus play the object strengthening anticorrosion ability.
Intake grill in cabin is set, and intake grill is arranged suction valve in cabin in cabin, can in case of need, allow the air of enclosed space inside to enter air channel via suction valve in cabin, to dehumidify to the air in enclosed space.
Anti-corrosion system can also comprise humidity transducer 11, and humidity transducer 11 and freezing-type dehumidifier 51 are electrically connected, to start or stop freezing-type dehumidifier 51 according to the humidity parameter detected.
Humidity transducer is for sensing the humidity in enclosed space, if the humidity parameter detected is greater than settings, freezing-type dehumidifier works, now, INO in cabin in cabin on intake grill, the air in enclosed space enters air channel, through the dehumidifying of freezing-type dehumidifier, air is input in enclosed space again, to ensure that the relative moisture of air in enclosed space is in the scope of setting.
Further, anti-corrosion system also comprises differential pressure pickup 12, and differential pressure pickup 12 and freezing-type dehumidifier 51 are electrically connected, to start or stop freezing-type dehumidifier 51 according to the pressure parameter detected.
When differential pressure pickup records enclosed space external and internal pressure difference lower than setting value, axial-flow blower, dehumidifier start, inlet open out of my cabin.
Particularly, anti-corrosion system also comprises back-up power 13, and back-up power 13 is electrically connected with freezing-type dehumidifier 51 and axial-flow blower 52 respectively.
The electricity consumption of the micro positive pressure device of anti-corrosion system can provide electric power by electrical network, also can in anti-corrosion system integrated back-up power, with when needed, provide electric power to micro positive pressure device.
The partial structurtes schematic diagram of the wind power generating set that Fig. 4 A provides for the embodiment of the present invention three, Fig. 4 B is the region being in micro positive pressure environment after wind power generating set being arranged sealing plate, Fig. 4 C air flow schematic diagram that to be freezing-type dehumidifier dehumidify to air out of my cabin, Fig. 4 D is the air flow schematic diagram that freezing-type dehumidifier dehumidifies to air in cabin.
The embodiment of the present invention three provides a kind of wind power generating set, comprises tower cylinder 1, cabin (not shown) and be located at the engine room cover 2 of nacelle exterior, and tower cylinder 1 supports cabin, wherein also comprises the anti-corrosion system described in any embodiment of the present invention; Anti-corrosion system is communicated with the inside of engine room cover 2; Engine room cover 2 offers for the through hole 21 to the air of engine room cover 2 inside input after anti-corrosion system process.Particularly, in the present embodiment, it is inner that anti-corrosion system is arranged on engine room cover 2, through hole 21 matches with the intake grill out of my cabin 62 of anti-corrosion system, and out of my cabin intake grill 62 and through hole 21 mutually through, intake grill 62 enters air channel 6 for allowing nacelle exterior air out of my cabin, and the air entering air channel 6 exports engine room cover 2 inside to after the process of micro positive pressure device.If anti-corrosion system to be arranged on the outside of engine room cover, the through hole of engine room cover can directly be communicated with the delivery outlet of micro positive pressure device, and in this case, in cabin, pipeline connection can be passed through in intake grill and engine room cover inside.
As shown in Figure 4 A, sealing place that sealing place that I place is hubcap and blade, II place are hubcap and engine room cover, III place are sealing place of engine room cover and tower cylinder to the structural representation of wind power generating set.The sealing at I place, II place, III place all adopts contact-type rotary seal.
On technique scheme basis, preferably, tower cylinder 1 is provided with sealing plate 16 apart from 2m-4m place bottom described engine room cover 2, and sealing plate 16 is fastened on tower cylinder 1 inwall, so that tower cylinder 1 is divided into mutually isolated two-part.
The height of tower cylinder is 80m-100m, the time in of tower cylinder not arranging sealing plate, micro positive pressure device needs to form micro positive pressure environment in the enclosed space that tower cylinder, engine room cover and hubcap enclose, and this space is very large, and micro positive pressure device needs the work of long period just can reach the micro positive pressure environment of setting.In order to reduce the working load of the equipment such as dehumidifier and filter, and be easier to form cabin micro positive pressure environment, thus ensureing good anticorrosion ability, the wind power generating set that the embodiment of the present invention provides makes encapsulation process, to ensure the airtight performance in cabin in I, II, III, IV tetra-positions.The inner IV place of tower cylinder and tower cylinder distance from top can select suitable height h as required, and the present embodiment elects 2.5m as, and IV place arranges a sealing plate, there is not mutual motion between sealing plate and tower cylinder inwall, therefore sealing plate and tower cylinder inwall do static seal process.Like this, need to form micro positive pressure environment and be only IV top, engine room inside, blade interior in tower cylinder, be interconnected between this three part, overall space small volume, form air compensation needed for micro positive pressure little, thus the realization of micro positive pressure is more simple and efficient.After dash area is expressed as and arranges sealing plate in Fig. 4 B, in Wind turbines, need the region that there is micro positive pressure.
The working principle of anti-corrosion system is described below.During first formation micro positive pressure environment, in cabin, suction valve 10 is in closed condition, air flow as shown in Figure 4 C, specific as follows: when offshore wind turbine be in normally be incorporated into the power networks state time, be positioned at the equipment of engine room cover 2 inside, i.e. freezing-type dehumidifier 51 and axial-flow blower 52, from the electrical network power taking of offshore wind turbine.Air through the coarse filtration of low efficient filter screen 7 laggard enter air channel 6, arrive freezing-type dehumidifier 51.Deliver to after in freezing-type dehumidifier 51, moisture condenses in freezing-type dehumidifier 51, and because the solubility of salinity in water is very high, most of salinity will be dissolved in condensed water and form salt solution, and salt solution is discharged cabin from brine discharge pipe 14.Air after the machine 51 that wets except freezing-type processes is very dry, but still also containing a small amount of dry salt particle, this part dry air removes dry salt particle through high efficiency pariculate air 8 again, become dry and not containing the clean air of salinity, enter to improve engine room cover 2 internal pressure value in engine room cover 2, thus make engine room cover 2 internal pressure higher than external atmosphere pressure.
The keep-process of the inner micro positive pressure environment of engine room cover is as follows: when differential pressure pickup 12 records engine room cover 2 external and internal pressure difference lower than setting value, suction valve 15 is opened out of my cabin, axial-flow blower 52, freezing-type dehumidifier 51 start, with to the inner supplementary air of engine room cover 2, to ensure the micro positive pressure environment of engine room cover 2 inside.When differential pressure pickup 12 records engine room cover 2 internal pressure and external pressure difference higher than setting value, axial-flow blower 52, freezing-type dehumidifier 51 quit work, and suction valve 15 cuts out out of my cabin.
Usually, in unit normal power generation situation, cabin interior temperatures is higher than external environment condition, and therefore in engine room cover, the relative moisture of air can remain on lower value.Under such circulation, micro positive pressure is remained in cabin, extraneous corrosive atmosphere and pollutant cannot enter engine room inside, and inner air relative moisture remains at very low level, ensure that corrosion because condensation and salinity cause and electric insulation problem do not occur under full weather conditions engine room inside, under guaranteeing that internal mechanical part and electric component run on good environment from many aspects.Like this, in guarantee offshore wind farm unit design life while reliable operation, the anticorrosion grade of design of mechanical part and electric component correspondingly can be reduced, thus reduce high-grade antiseptic difficulty and cost are carried out to single parts.
In practical application, also such a case may be there is: offshore wind turbine meets with the long-time situation departing from electrical network, and namely wind power generating set breaks down.Now, back-up power starts.In order to reduce the operating load of dehumidifier, reduce the consumption to back-up power, differential pressure pickup also no longer controls the On/Off of dehumidifier.Now, out of my cabin air inlet valve position in closed condition.Under the state of this disengaging electrical network, if the rapid drawdown of nacelle exterior ambient temperature, when will cause rapid drawdown in the engine room inside air temperature short time, engine room inside may produce condensation, thus brings component corrosion and electric insulation problem.In order to avoid there is dew condensation phenomenon, the relative moisture of anti-corrosion system now priority control engine room inside air.
As shown in Figure 4 D, now suction valve 15 is in closed condition to the schematic diagram dehumidified to engine room inside air out of my cabin.When humidity transducer 11 detects relative air humidity higher than a certain setting value, then judge that in engine room cover 2, air is too moistening, axial-flow blower 52 and freezing-type dehumidifier 51 are opened, in cabin, suction valve 10 will be opened, in engine room cover 2, comparatively wet air enters air channel 6 from intake grill in cabin 9, under the guiding of axial-flow blower 52, send into freezing-type dehumidifier 51, send engine room cover 2 inside after being converted into dry air back to, thus reduce the relative moisture of air in cabin.Dehumidifying produces water of condensation and drains into cabin from brine discharge mouth.When in cabin, humidity of the air is reduced to a certain safety value, axial-flow blower 52 and freezing-type dehumidifier 51 quit work, and in cabin, suction valve 10 cuts out.Like this, during just guaranteeing off-grid there is not condensation to avoid corrosion and electric insulation problem in engine room inside, until wind-force wind power generating set returns to normal operating condition.
The wind power generating set that the embodiment of the present invention three provides, adopts micro positive pressure device to form micro positive pressure environment at engine room inside, and also by arranging sealing plate with ensureing the formation effect of micro positive pressure in tower cylinder inside.The offshore wind turbine that the embodiment of the present invention provides, each machinery and electric component burn into can be avoided and can run reliably and with long-term, in addition, anticorrosion ability good, safeguard simple, safe and reliable, effectively to reduce component corrosion protection design in unit difficulty and cost.
Last it is noted that above embodiment is only in order to illustrate technological scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technological scheme.
Claims (7)
1. an anti-corrosion system, is characterized in that:
Comprise micro positive pressure device and air channel;
Described micro positive pressure device is used for being communicated with enclosed space, carries out dehumidification treatments to the air entering described micro positive pressure device, and exports the cleaned air after process to described enclosed space, is greater than outside atmosphere pressure to make the atmospheric pressure in described enclosed space;
Described air channel comprises by the mutually through intake grill out of my cabin of groove and exhaust outlet, and described exhaust outlet is connected with described micro positive pressure device, and described intake grill is out of my cabin used for outside air to be directed to described micro positive pressure device;
Described micro positive pressure device comprises freezing-type dehumidifier and axial-flow blower;
The air inlet out of my cabin in described air channel is provided with suction valve out of my cabin;
Described groove offers intake grill in cabin, in described cabin, intake grill is between described intake grill out of my cabin and described axial-flow blower;
In described cabin, intake grill is provided with suction valve in cabin, allows the air of described enclosed space inside to enter described air channel via suction valve in described cabin, to dehumidify to the air in described enclosed space;
Also comprise differential pressure pickup, described differential pressure pickup and described freezing-type dehumidifier are electrically connected, to start or stop described freezing-type dehumidifier according to the pressure parameter detected, wherein, when described differential pressure pickup records described enclosed space external and internal pressure difference lower than setting value, described axial-flow blower, described freezing-type dehumidifier start, described inlet open out of my cabin;
Wherein, the inlet opening of described freezing-type dehumidifier and the exhaust outlet in described air channel are tightly connected, to carry out dehumidification treatments to the air entering described freezing-type dehumidifier, the delivery outlet of described freezing-type dehumidifier is used for the cleaned air after described enclosed space input dehumidifying;
Described axial-flow blower is fixedly installed on the inside of described groove, flows to described freezing-type dehumidifier to guide air in described groove along described groove axial direction.
2. anti-corrosion system according to claim 1, is characterized in that: also comprise low efficient filter screen, and described low efficient filter screen hides on described intake grill out of my cabin, to carry out coarse filtration to the air entering described air channel.
3. anti-corrosion system according to claim 1, is characterized in that: also comprise high efficiency pariculate air, and described high efficiency pariculate air hides on the delivery outlet of described freezing-type dehumidifier, carefully filters with the cleaned air exported described freezing-type dehumidifier.
4. anti-corrosion system according to claim 1, is characterized in that: also comprise humidity transducer, and described humidity transducer and described freezing-type dehumidifier are electrically connected, to start or stop described freezing-type dehumidifier according to the humidity parameter detected.
5. anti-corrosion system according to claim 1, is characterized in that: also comprise back-up power, and described back-up power is electrically connected with described freezing-type dehumidifier and axial-flow blower respectively.
6. a wind power generating set, comprises tower cylinder, cabin and be located at the engine room cover of described nacelle exterior, and described tower cylinder supports described cabin, it is characterized in that:
Also comprise the arbitrary described anti-corrosion system of claim 1-5; Described corrosion protection system is communicated with the inside of described engine room cover;
Described engine room cover offers for the through hole to the air of described engine room cover inside input after described anti-corrosion system process.
7. wind power generating set according to claim 6, is characterized in that:
Described tower cylinder is provided with sealing plate apart from 2m-4m place bottom described engine room cover, and described sealing plate is fastened on described tower cylinder inwall, so that described tower cylinder is divided into mutually isolated two-part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110240459.5A CN102953938B (en) | 2011-08-19 | 2011-08-19 | Corrosion-resistant system and wind turbine generator system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110240459.5A CN102953938B (en) | 2011-08-19 | 2011-08-19 | Corrosion-resistant system and wind turbine generator system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102953938A CN102953938A (en) | 2013-03-06 |
| CN102953938B true CN102953938B (en) | 2015-06-24 |
Family
ID=47763191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110240459.5A Active CN102953938B (en) | 2011-08-19 | 2011-08-19 | Corrosion-resistant system and wind turbine generator system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102953938B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541871A (en) * | 2013-11-11 | 2014-01-29 | 上海电力学院 | Self-volatilizing active wind generator cabin dehumidification rust prevention device |
| JP6356500B2 (en) * | 2014-06-19 | 2018-07-11 | 株式会社日立製作所 | Wind power generator |
| CN104270920A (en) * | 2014-09-24 | 2015-01-07 | 广西华银铝业有限公司 | Anticorrosion cabinet used for isolating electronic equipment from coal gas |
| GB201509064D0 (en) * | 2015-05-27 | 2015-07-08 | Net Defence Ltd | Control and monitoring system and method |
| CN110005578A (en) * | 2019-05-06 | 2019-07-12 | 广东电网有限责任公司 | A kind of offshore wind generating |
| CN110446384B (en) * | 2019-07-30 | 2020-12-08 | 浙江大学宁波理工学院 | Dampproofing system of data acquisition box of HDPE floating net case |
| CN113833617B (en) * | 2021-09-16 | 2023-05-02 | 中国华能集团清洁能源技术研究院有限公司 | Cabin dehumidification system and method for offshore wind turbine generator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1326535A (en) * | 1998-12-23 | 2001-12-12 | 爱罗丁工程有限公司 | Device for preventing penetration of corrosive salt particles in offshore wind energy facility |
| CN201326522Y (en) * | 2008-12-26 | 2009-10-14 | 华锐风电科技有限公司 | Engine room cooling system of wind generating set |
| CN201714586U (en) * | 2010-07-20 | 2011-01-19 | 中船重工(重庆)海装风电设备有限公司 | Offshore wind power generation system |
| CN102022289A (en) * | 2010-12-16 | 2011-04-20 | 新疆金风科技股份有限公司 | Dehumidification system for wind generator and wind generator |
-
2011
- 2011-08-19 CN CN201110240459.5A patent/CN102953938B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1326535A (en) * | 1998-12-23 | 2001-12-12 | 爱罗丁工程有限公司 | Device for preventing penetration of corrosive salt particles in offshore wind energy facility |
| CN201326522Y (en) * | 2008-12-26 | 2009-10-14 | 华锐风电科技有限公司 | Engine room cooling system of wind generating set |
| CN201714586U (en) * | 2010-07-20 | 2011-01-19 | 中船重工(重庆)海装风电设备有限公司 | Offshore wind power generation system |
| CN102022289A (en) * | 2010-12-16 | 2011-04-20 | 新疆金风科技股份有限公司 | Dehumidification system for wind generator and wind generator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102953938A (en) | 2013-03-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102953938B (en) | Corrosion-resistant system and wind turbine generator system | |
| CN101957624B (en) | Method and system for controlling air dehumidifier of current transformer of wind power generator | |
| CN201714586U (en) | Offshore wind power generation system | |
| WO2016119511A1 (en) | Permanent-magnet direct-drive wind power generator, system and stator thereof | |
| CN202096855U (en) | Salt mist filter ventilating device for marine or offshore wind-driven generator cabin | |
| CN105134508B (en) | Complete machine cooling system of wind generating set, control method of complete machine cooling system and wind generating set | |
| CN206250644U (en) | A kind of safety-type power distribution control system of unmanned plane | |
| CN103541871A (en) | Self-volatilizing active wind generator cabin dehumidification rust prevention device | |
| CN202023685U (en) | Wind driven generator set | |
| CN104689919B (en) | Wet electrical dust precipitator insulator chamber aeroseal system and device | |
| EP2639450B1 (en) | Air conditioning system for a wind turbine and method for ventilating and pressurizing a wind turbine | |
| CN101649819A (en) | Air switching system of directly-driven wind power generator | |
| CN102213188B (en) | Dehumidify desalination pressure-fired system in marine and intertidal belt wind generator group cabin | |
| CN206135218U (en) | Low -voltage switch cabinet | |
| CN108412708B (en) | Offshore wind turbine and its environment control method | |
| CN112682278B (en) | Cabin dehumidification system and method for wind generating set | |
| CN201666228U (en) | Cabin anti-corrosion system for wind generating set on sea or in intertidal zones | |
| CN204313424U (en) | A kind of wet curtain air-cooler with air-cleaning function | |
| CN207831533U (en) | A kind of double air duct salt mist fresh air dehumidification system for runner | |
| CN214304179U (en) | Wind-powered electricity generation gear box air purification device | |
| CN202435764U (en) | Anti-corrosion electric cabinet | |
| CN202360305U (en) | Internal environment control system of wind generating set | |
| CN206280196U (en) | A kind of naval counterpart wind generating set engine room is pressurized dehydrating unit | |
| CN205340506U (en) | Anti fuel oil system's of turbine unit dewatering device | |
| CN205760623U (en) | Hydrogen cooled generator group hydrogen deoxidation drying device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |