CN107441843B - Ventilation filter of wind driven generator - Google Patents
Ventilation filter of wind driven generator Download PDFInfo
- Publication number
- CN107441843B CN107441843B CN201710919444.9A CN201710919444A CN107441843B CN 107441843 B CN107441843 B CN 107441843B CN 201710919444 A CN201710919444 A CN 201710919444A CN 107441843 B CN107441843 B CN 107441843B
- Authority
- CN
- China
- Prior art keywords
- filter element
- air duct
- main
- air
- 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.)
- Active
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 31
- 238000004140 cleaning Methods 0.000 claims abstract description 112
- 238000005192 partition Methods 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 9
- 230000009290 primary effect Effects 0.000 claims description 4
- 238000001914 filtration Methods 0.000 abstract description 29
- 230000007246 mechanism Effects 0.000 abstract description 23
- 238000012423 maintenance Methods 0.000 abstract description 9
- 230000009471 action Effects 0.000 description 8
- 238000013461 design Methods 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- 230000007704 transition Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000001095 motoneuron effect Effects 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 230000000977 initiatory effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000004887 air purification Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a ventilation filter of a wind driven generator, which is provided with a main air duct, wherein at least one stage of air filtering filter element and a main fan for sucking outside air are sequentially arranged on the main air duct along the air flow direction, the ventilation filter is also provided with a filter element cleaning mechanism, the filter element cleaning mechanism mainly comprises a cleaning air duct and an outer air duct which are positioned at the inner side and the outer side of a filter element to be cleaned, the wind power discharge end of the cleaning air duct is connected to the inner side of the filter element to be cleaned, the wind power inlet end of the outer air duct is connected to the outer side of the filter element to be cleaned, and the wind power discharge end of the outer air duct extends outwards on the main air duct. The automatic filter element cleaning device has an automatic filter element cleaning function, ensures that the filter element can be stably, efficiently and permanently used, effectively reduces the maintenance workload and the maintenance cost, and has good economical efficiency.
Description
Technical Field
The invention relates to an air filter, in particular to an air filter for ventilation of a wind driven generator.
Background
In order to prevent the severe outdoor environment from affecting the normal operation of the wind driven generator, the transmission components and the electrical components of the wind driven generator are usually arranged in a relatively sealed environment, such as a cabin, so as to ensure that the wind driven generator can stably and reliably operate normally. Then, since the transmission components and electrical components of the wind turbine generate heat during operation, the heat in the sealed environment, if too high, still directly affects the stability and reliability of the normal operation of the wind turbine. Therefore, in order to cool the sealed environment of the wind driven generator, a ventilation structure communicated with the outside air is usually arranged in the sealed environment of the wind driven generator, and the ventilation structure ensures that the outside cold air can enter the sealed environment to cool the environment temperature, and also ensures that the outside cold air entering the sealed environment is high-quality and cannot be mixed with impurities such as too high dust, so that the ventilation structure on the wind driven generator must have an air filtering function, namely, the wind driven generator should have a ventilation filter. The ventilation filter mainly comprises at least one stage of filter element and an exhaust fan, wherein the filter element and the exhaust fan are arranged in an air channel along the air flowing direction, the exhaust fan is used for sucking the external cold air to enter along the air channel, and the filter element is used for purifying and filtering the external cold air in the air channel.
In recent years, with the rapid development of wind power generation technology, ventilation filters have been commonly applied to wind power generators. As described above, the wind turbine is in service in outdoor environments with severe weather conditions for a long time, which is particularly prominent in gobi deserts and near deserts with abundant wind resources. In the service environment with bad weather conditions, the external cooling air sucked by the ventilation filter of the wind driven generator carries high-content sand dust and other impurities, when the ventilation filter filters the external cooling air, the impurities including the sand dust can block the filter element of the ventilation filter, so that the filtering efficiency and the filtering effect of the filter element are influenced, frequent maintenance and filter element replacement treatment are needed, the maintenance workload of the wind driven generator is increased, the maintenance cost is also increased, the normal operation of the wind driven generator is influenced, and the wind driven generator is not economical and efficient enough.
Disclosure of Invention
The technical purpose of the invention is as follows: aiming at the particularity and technical defects of the prior art, the ventilation filter with the filter element has a cleaning function, and effectively reduces the maintenance workload and the maintenance cost.
The technical scheme adopted by the invention for realizing the technical purpose is as follows: the utility model provides a aerogenerator ventilation filter, ventilation filter has main wind channel, the main wind channel is gone up and is arranged at least one-level air filtration filter core and the main fan of external air of suction in proper order along the air flow direction, ventilation filter still has the filter core cleaning mechanism, the filter core cleaning mechanism mainly comprises the clean wind channel and the outer wind channel that are in the inside and outside both sides of the filter core that will clean, the wind-force discharge end of clean wind channel is connected on the inboard main wind channel of the most inboard filter core at the inboard of the filter core that will clean, the wind-force entry end of outer wind channel is connected in the outside of the filter core that will clean, the wind-force discharge end outwards extends on the main wind channel.
As one preferable scheme, the outer air discharge duct is connected with a cleaning fan. Further, the cleaning fan is a centrifugal fan.
As one of the preferable schemes, the air filtering filter elements on the main air duct are two stages, the filter elements positioned on the outer side and the inner side along the air flowing direction on the main air duct are primary effect filter elements, and the primary effect filter elements are filter elements to be cleaned on the main air duct.
Preferably, the filter element to be cleaned on the main air duct is assembled on the main air duct in a movable structure capable of rotating in the circumferential direction through a driving motor.
Preferably, the filter element to be cleaned on the main air duct is of a radial partition structure and is provided with a plurality of fan-shaped filter areas distributed circumferentially, and adjacent filter areas are separated by partition plates.
Preferably, the wind inlet end of the cleaning air duct is connected to the main air duct inside the main fan.
As one preferable scheme, the main fan is an axial flow fan or a centrifugal fan.
Preferably, the main duct has a cylindrical body.
The beneficial technical effects of the invention are as follows:
1. aiming at the particularity of a ventilation structure on the wind driven generator, on the premise of basically not influencing the purification and filtration of external cold air, a strand of air after purification and filtration is led to a filter element which is easy to block, and the filter element is subjected to back flushing cleaning, so that the ventilation filter has an automatic filter element cleaning function, the blocking problem of the filter element of the ventilation filter in the air purification and filtration process is greatly reduced, and the filter element of the ventilation filter can be ensured to be stably, efficiently and long-term in service, thus the maintenance workload and the maintenance cost of the ventilation filter of the wind driven generator are effectively reduced, the stability and the reliability of the normal operation of the wind driven generator are favorably improved, the high efficiency of the work of the wind driven generator is favorably improved, and the economical efficiency is good;
2. the cleaning fan on the outer air exhaust duct can effectively improve the cleaning strength of wind power on the filter element, thereby ensuring that the filter element is cleaned excellently;
3. the filter element is assembled on the main air duct in a movable structure capable of rotating in the circumferential direction, so that stable and reliable cleaning treatment of each area of the filter element is effectively ensured, and the influence on the purification and filtration functions of the filter element caused by reliable cleaning of the filter element is avoided;
4. the partition plate partition structure of the filter element can not only ensure that the purification and filtration functions are not influenced, but also effectively enhance the cleaning effect of the filter element, which is particularly more prominent in the circumferential rotation process of the filter element, so that each filtration area of the filter element is reliably and excellently cleaned one by one;
5. the arrangement structure of the cleaning air duct on the main air duct avoids the influence on the normal cleaning and filtering of the outside cold air, ensures the back-blowing cleaning wind power cleaning and no pollution to the filter element, further avoids the pollution and blockage to the inner side of the filter element due to cleaning treatment, and is favorable for ensuring the stability and reliability of operation.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention.
Fig. 2 is an axial sectional view of fig. 1.
Fig. 3 is a schematic view of a primary filter element of fig. 1 and 2.
The reference numbers in the figures mean: 1, a cylinder body; 2-main air duct; 3-primary effect filter element; 4, high-efficiency filter elements; 5, a main fan; 6-wind inlet end; 7-wind power exhaust end; 8-outer exhaust duct; 9-cleaning the fan; 10-a drive motor; 11-a filtration zone; 12-a separator.
Detailed Description
The invention relates to an air filter, in particular to an air filter for ventilation of a wind driven generator. The technical contents of the present invention are clearly and clearly described in the following embodiments, wherein embodiment 1 is combined with the drawings of the specification, namely fig. 1, fig. 2 and fig. 3, to clearly and clearly describe the technical contents of the present invention, and although other embodiments are not separately drawn, the main structure of the embodiments can still refer to the drawings of embodiment 1.
Example 1
Referring to fig. 1, 2 and 3, the present invention is arranged in the sealed environment of a wind turbine, such as a nacelle, having a cylinder 1 constituting a main air duct 2, the inner end of the cylinder 1 facing the components to be cooled of the wind turbine and the outer end being in the atmosphere. The main air duct 2 of the invention is sequentially provided with two stages of air filtering filter elements and a main fan 5 along the air flowing direction; along the air flowing direction on the main air duct 2, the filter element at the outer side is a primary filter element 3, the filter element at the inner side is a high-efficiency filter element 4, and the primary filter element 3 and the high-efficiency filter element 4 are used for purifying and filtering the outside cold air entering the main air duct 2 step by step; the main fan 5 is arranged on the main air duct 2 at the inner side of the high-efficiency filter element 4, and the main fan 5 is an axial flow fan (or a centrifugal fan) for sucking the outside cold air.
The invention is provided with a filter element cleaning mechanism which is used for automatically cleaning the filter element to be cleaned on the main air duct 2, and in the filter element structure of the main air duct 2, the primary filter element 3 which is positioned at the outer side and directly corresponds to the outside cold air is the filter element to be cleaned on the main air duct 2. The center of the primary filter element 3 is radially supported on the main air duct 2 through a bearing assembly, and the periphery of the primary filter element 3 is provided with a meshing rack; be equipped with driving motor 10 on the barrel 1 of aforementioned main wind channel 2, the periphery meshing that this driving motor 10's output shaft passes through gear and primary filter element 3 to, primary filter element 3 passes through driving motor 10 and assembles on main wind channel 2 with the rotatable beta structure of circumference, under driving motor 10's effect promptly, primary filter element 3 can realize the rotation in a circumferential direction action in main wind channel 2. In addition, the primary filter element 3 is a radial partition structure, that is, the filter structure is radially divided into a plurality of fan-shaped filter areas 11, the fan-shaped filter areas 11 are uniformly distributed in the circumferential direction of the primary filter element 3, and adjacent filter areas 11 are separated by partition plates 12 with convex surfaces, so that the filter areas 11 of the primary filter element 3 are mutually independent; of course, the number of the specific sections of the primary filter element 3 should be flexibly determined according to the design requirements, and is not a fixed value, but usually more than ten sections.
The filter element cleaning mechanism mainly comprises cleaning air ducts and an outer air duct 8 which are arranged at the inner side and the outer side of the primary filter element 3. The cleaning air duct is led out from the periphery of the cylinder 1 of the main air duct 2, the wind power discharge end 7 of the cleaning air duct is connected to the inner side of the primary filter element 3, and the air outlet extends radially in the main air duct 2 and faces to the inner side surface of the primary filter element 3; the wind inlet end 6 of the cleaning air duct is connected to the main air duct 2 at the inner side of the main fan 5, and the air inlet extends radially in the main air duct 2 and faces the air flowing direction in the main air duct 2; the whole clean air duct is formed in a streamline transition mode. An outer air discharge duct 8 is radially led out from the main air duct 2, the wind inlet end of the outer air discharge duct 8 is connected to the outer side of the primary filter element 3, the air inlet of the outer air discharge duct 8 radially extends into the main air duct 2 and faces the outer side surface of the primary filter element 3, the air inlet of the outer air discharge duct 8 and the air outlet of the cleaning air duct are required to be opposite to each other on the outer side surface and the inner side surface of the primary filter element 3, and meanwhile, based on the fan-shaped filtering area structure of the primary filter element 3, the shape of the outline of the air inlet of the outer air discharge duct 8 is preferably corresponding to the outline structure; the wind discharge end of the outer air discharge duct 8 extends outward from the outer periphery of the main air duct 2, and is generally introduced into the atmospheric environment substantially independently of the direction of the air flow of the main air duct 2. The outer air discharge duct 8 is connected with a cleaning fan 9, and the cleaning fan 9 is a centrifugal fan.
The design principle of the invention is mainly as follows: the main fan 5 in the main air duct 2 sucks the outside cold air, the sucked outside cold air enters the main air duct 2 and is purified and filtered step by step on the primary filter element 3 and the high-efficiency filter element 4, most of impurities including sand and dust carried by the outside cold air are intercepted on the primary filter element 3, and the filtered clean air can meet the use requirements of various working conditions and environments of the wind driven generator; in the process of cleaning and filtering the external cold air, part of the clean air enters into a backflow from an air inlet of the clean air channel due to the pressure action in the main air channel 2 and the suction action of the cleaning fan 9, is discharged from an air outlet of the clean air channel, carries out back-blowing cleaning on the primary filter element 3, blows off impurities intercepted on the primary filter element 3, enables the impurities to enter an air inlet of the external air channel 8, is discharged from an air outlet of the external air channel 8, and enters the atmospheric environment; in the process, the primary filter element 3 on the main air duct 2 is driven by the driving motor 10 to rotate circumferentially, so that each filtering area 11 on the primary filter element 3 is reliably cleaned.
Example 2
The invention is arranged in the sealed environment of a wind power generator, such as a nacelle, having a cylinder constituting a main air duct, the inner end of the cylinder facing the components to be cooled of the wind power generator and the outer end being in the atmosphere. The main air duct of the invention is sequentially provided with a three-stage air filtering filter element and a main fan along the air flowing direction; along the air flow direction on the main air duct, the filter element at the outer side is a primary filter element, the filter element at the inner side is a high-efficiency filter element, the filter element between the primary filter element and the high-efficiency filter element is a secondary filter element, and the primary filter element, the secondary filter element and the high-efficiency filter element are used for purifying and filtering the outside cold air entering the main air duct step by step; the main fan is arranged on the main air duct on the inner side of the high-efficiency filter element, and the main fan is an axial flow fan (or a centrifugal fan) used for sucking outside cold air.
The invention is provided with a filter element cleaning mechanism, the filter element cleaning mechanism is used for automatically cleaning a filter element to be cleaned on a main air duct, and in the filter element structure of the main air duct, an initial-effect filter element which is positioned at the outer side and directly corresponds to outside cold air is the filter element to be cleaned on the main air duct. The center of the primary filter element is radially supported on the main air duct through a bearing assembly, and the periphery of the primary filter element is provided with a meshing rack; be equipped with driving motor on the barrel in aforementioned main wind channel, this driving motor's output shaft passes through the periphery meshing of gear with the primary filter core to, the primary filter core passes through driving motor and assembles on main wind channel with the rotatable movable structure of circumference, promptly under driving motor's effect, and the primary filter core can realize the rotation in a circumferential direction action in the main wind channel.
The filter element cleaning mechanism mainly comprises cleaning air ducts and an outer air duct, wherein the cleaning air ducts and the outer air duct are arranged on the inner side and the outer side of the primary filter element. The cleaning air duct is led out from the periphery of the cylinder of the main air duct, the wind power discharge end of the cleaning air duct is connected to the inner side of the primary filter element, and the air outlet extends radially in the main air duct and faces to the inner side surface of the primary filter element; the wind inlet end of the cleaning air duct is connected to the main air duct on the inner side of the main fan, and the air inlet extends radially in the main air duct and faces the air flowing direction in the main air duct; the whole clean air duct is formed in a streamline transition mode. The outer air discharge duct is radially led out from the main air duct, the wind inlet end of the outer air discharge duct is connected to the outer side of the primary filter element, the air inlet of the outer air discharge duct radially extends into the main air duct and faces the outer side surface of the primary filter element, and the air inlet of the outer air discharge duct is required to be opposite to the air outlet of the cleaning air duct on the outer side surface and the inner side surface of the primary filter element; the wind power discharge end of the outer air duct extends outwards at the periphery of the main air duct, is usually introduced into the atmospheric environment, and is basically independent of the air flow direction of the main air duct. The outer air discharge duct is connected with a cleaning fan, and the cleaning fan is a centrifugal fan.
Example 3
The invention is arranged in the sealed environment of a wind driven generator, such as a cabin, and the sealed environment is provided with a main air duct, the inner end of the main air duct faces to a component to be cooled of the wind driven generator, and the outer end of the main air duct is in the atmospheric environment, namely, the main air duct is formed on a shell component of the sealed environment of the wind driven generator in a machining mode. The main air duct of the invention is sequentially provided with two stages of air filtering filter elements and a main fan along the air flowing direction; along the air flowing direction on the main air duct, the filter element at the outer side is a primary filter element, the filter element at the inner side is a high-efficiency filter element, and the primary filter element and the high-efficiency filter element are used for purifying and filtering the outside cold air entering the main air duct step by step; the main fan is arranged on the main air duct on the inner side of the high-efficiency filter element, and the main fan is an axial flow fan (or a centrifugal fan) used for sucking outside cold air.
The invention is provided with a filter element cleaning mechanism, the filter element cleaning mechanism is used for automatically cleaning a filter element to be cleaned on a main air duct, and in the filter element structure of the main air duct, an initial-effect filter element which is positioned at the outer side and directly corresponds to outside cold air is the filter element to be cleaned on the main air duct. The center of the primary filter element is radially supported on the main air duct through a bearing assembly, and the periphery of the primary filter element is provided with a meshing rack; the periphery in aforementioned main wind channel is equipped with driving motor, and this driving motor's output shaft passes through the periphery meshing of gear with the primary filter core to, the primary filter core passes through driving motor and assembles on the main wind channel with the rotatable movable structure of circumference, promptly under driving motor's effect, and the primary filter core can realize the rotation in a circumferential direction action in the main wind channel. In addition, the primary filter element is of a radial partition structure, namely the filter structure is radially divided into a plurality of fan-shaped filter areas, the fan-shaped filter areas are uniformly distributed in the circumferential direction of the primary filter element, and adjacent filter areas are separated by a partition plate with a convex surface, so that the filter areas of the primary filter element are mutually independent; of course, the number of the specific sections of the primary filter element should be flexibly determined according to the design requirements, is not a fixed value, but generally should be more than ten sections.
The filter element cleaning mechanism mainly comprises cleaning air ducts and an outer air duct, wherein the cleaning air ducts and the outer air duct are arranged on the inner side and the outer side of the primary filter element. The cleaning air duct is led out from the periphery of the main air duct, the wind power discharge end of the cleaning air duct is connected to the inner side of the primary filter element, the air outlet extends radially in the main air duct and faces the inner side surface of the primary filter element, and based on the fan-shaped filter area structure of the primary filter element, the air outlet of the cleaning air duct is preferably in a shape of a profile corresponding to the profile structure of a single filter area on the primary filter element; the wind inlet end of the cleaning air duct is connected to the main air duct on the inner side of the main fan, and the air inlet extends radially in the main air duct and faces the air flowing direction in the main air duct; the whole clean air duct is formed in a streamline transition mode. The outer air discharge duct is radially led out from the main air duct, the wind inlet end of the outer air discharge duct is connected to the outer side of the primary filter element, the air inlet of the outer air discharge duct radially extends into the main air duct and faces the outer side surface of the primary filter element, the air inlet of the outer air discharge duct is required to be opposite to the air outlet of the cleaning air duct on the outer side surface and the inner side surface of the primary filter element, and meanwhile, based on the fan-shaped filter area structure of the primary filter element, the outline shape of the air inlet of the outer air discharge duct is preferably corresponding to the outline structure of a single filter area; the wind power discharge end of the outer air duct extends outwards at the periphery of the main air duct, is usually introduced into the atmospheric environment, and is basically independent of the air flow direction of the main air duct. The outer air discharge duct is connected with a cleaning fan, and the cleaning fan is a centrifugal fan.
Example 4
The invention is arranged in the sealed environment of a wind power generator, such as a nacelle, having a cylinder constituting a main air duct, the inner end of the cylinder facing the components to be cooled of the wind power generator and the outer end being in the atmosphere. The main air duct of the invention is sequentially provided with two stages of air filtering filter elements and a main fan along the air flowing direction; along the air flowing direction on the main air duct, the filter element at the outer side is a primary filter element, the filter element at the inner side is a high-efficiency filter element, and the primary filter element and the high-efficiency filter element are used for purifying and filtering the outside cold air entering the main air duct step by step; the main fan is arranged on the main air duct on the inner side of the high-efficiency filter element, and the main fan is an axial flow fan (or a centrifugal fan) used for sucking outside cold air.
The invention is provided with a filter element cleaning mechanism, the filter element cleaning mechanism is used for automatically cleaning a filter element to be cleaned on a main air duct, and in the filter element structure of the main air duct, an initial-effect filter element which is positioned at the outer side and directly corresponds to outside cold air is the filter element to be cleaned on the main air duct. The center of the primary filter element is radially supported on the main air duct through a bearing assembly, and the periphery of the primary filter element is provided with a meshing rack; be equipped with driving motor on the barrel in aforementioned main wind channel, this driving motor's output shaft passes through the periphery meshing of gear with the primary filter core to, the primary filter core passes through driving motor and assembles on main wind channel with the rotatable movable structure of circumference, promptly under driving motor's effect, and the primary filter core can realize the rotation in a circumferential direction action in the main wind channel. In addition, the primary filter element is of a radial partition structure, namely the filter structure is radially divided into a plurality of fan-shaped filter areas, the fan-shaped filter areas are uniformly distributed in the circumferential direction of the primary filter element, and adjacent filter areas are separated by a partition plate with a convex surface, so that the filter areas of the primary filter element are mutually independent; of course, the number of the specific sections of the primary filter element should be flexibly determined according to the design requirements, is not a fixed value, but generally should be more than ten sections.
The filter element cleaning mechanism mainly comprises cleaning air ducts and an outer air duct, wherein the cleaning air ducts and the outer air duct are arranged on the inner side and the outer side of the primary filter element. The cleaning air duct is led out from the periphery of the cylinder of the main air duct, the wind power discharge end of the cleaning air duct is connected to the inner side of the primary filter element, the air outlet extends radially in the main air duct and faces to the inner side surface of the primary filter element, and based on the fan-shaped filter area structure of the primary filter element, the air outlet of the cleaning air duct is preferably in a shape of a profile corresponding to the profile structure of a single filter area on the primary filter element; the wind inlet end of the cleaning air duct is connected to the main air duct on the inner side of the high-efficiency filter element, namely the wind inlet end of the cleaning air duct is connected to the main air duct between the high-efficiency filter element and the main fan, and the air inlet of the cleaning air duct radially extends into the main air duct and faces the air flowing direction in the main air duct; the whole clean air duct is formed in a streamline transition mode. The outer air discharge duct is radially led out from the main air duct, the wind inlet end of the outer air discharge duct is connected to the outer side of the primary filter element, the air inlet of the outer air discharge duct radially extends into the main air duct and faces the outer side surface of the primary filter element, the air inlet of the outer air discharge duct is required to be opposite to the air outlet of the cleaning air duct on the outer side surface and the inner side surface of the primary filter element, and meanwhile, based on the fan-shaped filter area structure of the primary filter element, the outline shape of the air inlet of the outer air discharge duct is preferably corresponding to the outline structure of a single filter area; the wind power discharge end of the outer air duct extends outwards at the periphery of the main air duct, is usually introduced into the atmospheric environment, and is basically independent of the air flow direction of the main air duct. The outer air discharge duct is connected with a cleaning fan, and the cleaning fan is a centrifugal fan.
Example 5
The invention is arranged in the sealed environment of a wind power generator, such as a nacelle, having a cylinder constituting a main air duct, the inner end of the cylinder facing the components to be cooled of the wind power generator and the outer end being in the atmosphere. The main air duct of the invention is sequentially provided with two stages of air filtering filter elements and a main fan along the air flowing direction; along the air flowing direction on the main air duct, the filter element at the outer side is a primary filter element, the filter element at the inner side is a high-efficiency filter element, and the primary filter element and the high-efficiency filter element are used for purifying and filtering the outside cold air entering the main air duct step by step; the main fan is arranged on the main air duct on the inner side of the high-efficiency filter element, and the main fan is an axial flow fan (or a centrifugal fan) used for sucking outside cold air.
The air filter comprises a filter element cleaning mechanism, wherein the filter element cleaning mechanism is used for automatically cleaning a filter element to be cleaned on a main air duct, and in the filter element structure of the main air duct, a primary filter element and a high-efficiency filter element are respectively the filter element to be cleaned on the main air duct, namely, the filter element cleaning mechanism comprises two sets, the first set aims at the primary filter element, and the second set aims at the high-efficiency filter element. The center of the primary filter element is radially supported on the main air duct through a bearing assembly, and the periphery of the primary filter element is provided with a meshing rack; be equipped with the driving motor to just imitating the filter core on the barrel in aforementioned main wind channel, this driving motor's output shaft passes through the periphery meshing of gear and just imitating the filter core to, just imitating the filter core and passing through driving motor and assembling on main wind channel with the rotatable movable structure in circumference, under driving motor's effect promptly, just imitating the filter core and can realizing the circumference rotation action in main wind channel. The center of the high-efficiency filter element is radially supported on the main air duct through a bearing assembly, and the periphery of the high-efficiency filter element is provided with a meshing rack; be equipped with the driving motor to high-efficient filter core on the barrel in aforementioned main wind channel, this driving motor's output shaft passes through the periphery meshing of gear with high-efficient filter core to, high-efficient filter core passes through driving motor and assembles on the main wind channel with the rotatable movable structure of circumference, promptly under driving motor's effect, and high-efficient filter core can realize the circumference rotation action in the main wind channel. In addition, the primary filter element is of a radial partition structure, namely the filter structure is radially divided into a plurality of fan-shaped filter areas, the fan-shaped filter areas are uniformly distributed in the circumferential direction of the primary filter element, and adjacent filter areas are separated by a partition plate with a convex surface, so that the filter areas of the primary filter element are mutually independent; of course, the number of the specific sections of the primary filter element should be flexibly determined according to the design requirements, is not a fixed value, but generally should be more than ten sections. The efficient filter element is of a radial partition structure, namely the filter structure is radially divided into a plurality of fan-shaped filter areas, the fan-shaped filter areas are uniformly distributed in the circumferential direction of the efficient filter element, and adjacent filter areas are separated by a partition plate with a convex surface, so that the filter areas of the efficient filter element are mutually independent; of course, the number of specific sections of the high-efficiency filter element should be flexibly determined according to design requirements, is not a fixed value, but generally should be more than ten sections.
The first set of filter element cleaning mechanism mainly comprises a first set of cleaning air channels and a first set of outer exhaust air channels, wherein the first set of cleaning air channels and the first set of outer exhaust air channels are positioned at the inner side and the outer side of the primary filter element. The first set of clean air ducts are led out from the periphery of the cylinder of the main air duct, the wind power discharge ends of the first set of clean air ducts are connected to the inner side of the primary filter element, and the air outlets radially extend in the main air duct and face the inner side surface of the primary filter element; the wind inlet end of the first set of cleaning air channel is connected to the main air channel at the inner side of the main fan, and the air inlet extends radially in the main air channel and faces the air flowing direction in the main air channel; the whole first set of clean air ducts should be formed in a streamlined transition mode. The first set of outer air discharge ducts are radially led out from the main air duct, the wind inlet ends of the first set of outer air discharge ducts are connected to the outer side of the primary filter element, the air inlets of the first set of outer air discharge ducts radially extend into the main air duct and face the outer side surface of the primary filter element, the air inlets of the first set of outer air discharge ducts and the air outlets of the first set of cleaning air ducts are required to be opposite to the outer side surface and the inner side surface of the primary filter element, and meanwhile, based on the fan-shaped filtering area structure of the primary filter element, the shape of the outline of the air inlets of the first set of outer air discharge ducts is preferably; the wind power discharge end of the first set of outer air discharge ducts extends outwards at the periphery of the main air duct, is usually introduced into the atmospheric environment, and is basically independent of the air flow direction of the main air duct. A cleaning fan is connected to the first set of outer exhaust duct, and a centrifugal fan is selected as the cleaning fan.
The second filter element cleaning mechanism mainly comprises a second set of cleaning air ducts and a second set of outer air duct which are positioned at the inner side and the outer side of the high-efficiency filter element. The second set of cleaning air duct is led out from the first set of cleaning air duct of the first set of filter element cleaning mechanism, namely, the wind power discharge end of the second set of cleaning air duct is connected to the inner side of the high-efficiency filter element, and the air outlet extends radially in the main air duct and faces to the inner side surface of the high-efficiency filter element; the wind power inlet end of the second set of cleaning air duct is connected to the first set of cleaning air duct, and the first set of cleaning air duct and the second set of cleaning air duct are led out and molded in a Y-shaped fork structure; the whole second set of clean air duct should streamline transition shape. The second set of outer air discharge ducts are radially led out from the main air duct, the wind inlet ends of the second set of outer air discharge ducts are connected to the outer side of the high-efficiency filter element, the air inlets of the second set of outer air discharge ducts radially extend into the main air duct and face the outer side surface of the high-efficiency filter element, the air inlets of the second set of outer air discharge ducts and the air outlets of the second set of cleaning air ducts are required to be opposite to the outer side surface and the inner side surface of the primary-efficiency filter element, and meanwhile, based on the fan-shaped filter area structure of the primary-efficiency filter element, the shape of the outline of the air; the wind power discharge end of the second set of outer air discharge ducts extends outwards at the periphery of the main air duct, is usually introduced into the atmospheric environment, and is basically independent of the air flow direction of the main air duct. And the outer air discharge duct of the second set is connected with a cleaning fan, and the cleaning fan is a centrifugal fan.
In order to reduce the influence on the main air duct, the air outlet of the first set of clean air duct and the air inlet of the first set of outer air duct of the first set of filter element cleaning mechanism, and the air outlet of the second set of clean air duct and the air inlet of the second set of outer air duct of the second set of filter element cleaning mechanism correspond to each other in a straight line in the axial direction of the main air duct.
The above examples are intended to illustrate the invention, but not to limit it; although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: the present invention may be modified from the embodiments described above or substituted for some of the technical features, and such modifications or substitutions do not depart from the spirit and scope of the present invention.
Claims (6)
1. The utility model provides an inside cooling of aerogenerator cabin is with ventilation filter, ventilation filter has main wind channel (2) of arranging on the cabin, the inner of main wind channel (2) is in the atmospheric environment towards aerogenerator's the part of treating cooling, outer end, main wind channel (2) are gone up and have been arranged in proper order along the air flow direction and are in the outside primary filter core (3), be in inboard high-efficient filter core (4) and main fan (5) of external air of suction, its characterized in that:
the primary filter element (3) on the main air duct (2) is of a radial partition structure, a plurality of fan-shaped filter areas (11) are circumferentially distributed, adjacent filter areas (11) are separated by partition plates (12), and the primary filter element (3) is assembled on the main air duct (2) through a driving motor (10) in a circumferentially rotatable movable structure;
the inner side of the primary filter element (3) is provided with a cleaning air duct, and the outer side of the primary filter element is provided with an outer exhaust air duct (8);
the wind power inlet end (6) of the cleaning air channel is connected to the inner side area of the high-efficiency filter element (4) in the main air channel (2), the opening part of the cleaning air channel faces the air flowing direction in the main air channel (2), the wind power outlet end (7) of the cleaning air channel is connected to the inner side of the primary-effect filter element (3), and the opening part of the cleaning air channel faces the local part of the inner side surface of the primary-effect filter element (3);
the wind-force entry end of outer wind channel (8) is connected in the outside of just imitating filter core (3), and the opening is towards the local department of the outside surface of just imitating filter core (3), the wind-force entry end opening of outer wind channel (8) with wind-force discharge end (7) opening in clean wind channel just right in the outer, interior both sides surface of just imitating filter core (3), the wind-force discharge end of outer wind channel (8) outwards extends and is independent each other with the air current direction of main wind channel (2) on main wind channel (2).
2. The ventilation filter for cooling the interior of the wind turbine nacelle according to claim 1, wherein: and the outer air exhaust duct (8) is connected with a cleaning fan (9).
3. The ventilation filter for cooling the interior of the wind turbine nacelle according to claim 2, wherein: the cleaning fan (9) is a centrifugal fan.
4. The ventilation filter for cooling the interior of the wind turbine nacelle according to claim 1, wherein: the wind inlet end of the cleaning air duct is connected to the main air duct (2) on the inner side of the main fan (5).
5. The ventilation filter for cooling the inside of the wind turbine nacelle according to claim 1 or 4, wherein: the main fan (5) is an axial flow fan or a centrifugal fan.
6. The ventilation filter for cooling the interior of the wind turbine nacelle according to claim 1, wherein: the main air duct (2) is provided with a cylinder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710919444.9A CN107441843B (en) | 2017-09-30 | 2017-09-30 | Ventilation filter of wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710919444.9A CN107441843B (en) | 2017-09-30 | 2017-09-30 | Ventilation filter of wind driven generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107441843A CN107441843A (en) | 2017-12-08 |
| CN107441843B true CN107441843B (en) | 2020-12-01 |
Family
ID=60497742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710919444.9A Active CN107441843B (en) | 2017-09-30 | 2017-09-30 | Ventilation filter of wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107441843B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468194B (en) * | 2018-05-23 | 2024-01-30 | 珠海格力电器股份有限公司 | Air duct assembly and washing and drying integrated machine with same |
| CN109331566A (en) * | 2018-12-12 | 2019-02-15 | 佛山科学技术学院 | One kind is absorbed for sandstorm administers large scale equipment |
| CN111412572A (en) * | 2020-04-07 | 2020-07-14 | 珠海格力电器股份有限公司 | Air conditioning unit, control method thereof and air conditioning equipment |
| CN114337099B (en) * | 2022-01-11 | 2023-01-10 | 浙江尔格科技股份有限公司 | Direct-connection air cooling device for self-cleaning wind driven generator |
| CN114794701B (en) * | 2022-04-30 | 2024-03-12 | 深圳市众平电机有限公司 | Air blower based on hollow cup high-speed motor and use method thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000042330A (en) * | 1998-08-03 | 2000-02-15 | Kiichi Taga | Disk filter |
| KR101647641B1 (en) * | 2010-02-03 | 2016-08-11 | 코웨이 주식회사 | Filter assembly of air cleaner having automatic cleaning function and air cleaner having the same |
| CN202283436U (en) * | 2011-11-07 | 2012-06-27 | 福建省华澳环保科技有限公司 | High-efficiency bag type dust remover |
| JP5500279B2 (en) * | 2013-01-31 | 2014-05-21 | ダイキン工業株式会社 | Air filter |
| CN203123724U (en) * | 2013-04-03 | 2013-08-14 | 安阳市九州净化设备有限公司 | Fresh-air type air purifier |
| US9597627B2 (en) * | 2014-10-19 | 2017-03-21 | Wei Zhang (William) | Regenerative air purification system and method |
| CN104896717A (en) * | 2015-06-11 | 2015-09-09 | 山东云舜智能科技有限公司 | Dust removal device of ventilation system of electric locomotive |
| CN107174914A (en) * | 2017-07-27 | 2017-09-19 | 国网河南省电力公司西峡县供电公司 | One kind reclaims cable high-temperature separator high-efficiency dust removal system |
-
2017
- 2017-09-30 CN CN201710919444.9A patent/CN107441843B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107441843A (en) | 2017-12-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107441843B (en) | Ventilation filter of wind driven generator | |
| CN108692389A (en) | Airhandling equipment and air treatment system | |
| CN108458130B (en) | For the channel switching device and airhandling equipment in fluid line | |
| CN117202568A (en) | Circulation cooling system of high-voltage frequency converter | |
| CN116865488A (en) | Mower wheel motor | |
| CN217873127U (en) | Wind generating set heat radiation structure and wind generating set | |
| CN115788967A (en) | Heat dissipation channel of magnetic suspension air blower | |
| CN114483925B (en) | External wind-cooling heat dissipation system for wind generating set gear box | |
| CN206017206U (en) | A kind of anticlogging mine ventilation machine | |
| CN200985890Y (en) | Purification apparatus internal centrifugal fan | |
| CN114087213A (en) | Suspension bearing blower with cooling fan driven by single air inlet and main working motor | |
| CN219643712U (en) | Direct-drive wind driven generator | |
| CN209900870U (en) | Induced draft fan for electrolytic aluminum industrial tail gas treatment | |
| CN113623153A (en) | Wind power generator cabin cooling system based on tower drum air supply | |
| CN208424111U (en) | A kind of good electric motor end cap of heat dissipation performance | |
| CN207638500U (en) | A kind of exhausting cooling electric machine of damping effect | |
| CN216342888U (en) | Two-stage series high-pressure high-speed centrifugal fan | |
| CN220955937U (en) | Heat dissipation cooling structure of hub of filtering type wind turbine generator system | |
| CN114962349B (en) | Automatic clean industrial fan | |
| CN217383193U (en) | Ventilation device for house building | |
| CN221628496U (en) | Surface mine mineral screening fan | |
| CN118100509B (en) | Motor internal and external pressure balance system | |
| CN221043624U (en) | Automatic dust removing device for cabinet and cabinet | |
| CN210686396U (en) | Textile fan | |
| CN221058117U (en) | Multifunctional micro-motor easy to install |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 618000 2 Huashan South Road, Deyang, Sichuan, 2 Patentee after: Dongfang Electric Wind Power Co.,Ltd. Address before: 618000 2 Huashan South Road, Deyang, Sichuan, 2 Patentee before: DONGFANG ELECTRIC WIND POWER Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240613 Address after: 831100 New Industry and Light Industry Zone II, Minsheng Industrial Park, Mulei Kazakh Autonomous County, Changji Hui Autonomous Prefecture, Xinjiang Uygur Autonomous Region Patentee after: Xinjiang Dongfang Wind Power New Energy Co.,Ltd. Country or region after: China Patentee after: Dongfang Electric Wind Power Co.,Ltd. Address before: 618000 2 Huashan South Road, Deyang, Sichuan, 2 Patentee before: Dongfang Electric Wind Power Co.,Ltd. Country or region before: China |