CN108591098A - Low noise explosion-proof fan - Google Patents
Low noise explosion-proof fan Download PDFInfo
- Publication number
- CN108591098A CN108591098A CN201810557551.6A CN201810557551A CN108591098A CN 108591098 A CN108591098 A CN 108591098A CN 201810557551 A CN201810557551 A CN 201810557551A CN 108591098 A CN108591098 A CN 108591098A
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- Prior art keywords
- axle sleeve
- muffler
- cap body
- plate
- air inlet
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- 230000005484 gravity Effects 0.000 claims abstract description 55
- 238000004140 cleaning Methods 0.000 claims abstract description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 42
- 229910052802 copper Inorganic materials 0.000 claims description 42
- 239000010949 copper Substances 0.000 claims description 42
- 239000000428 dust Substances 0.000 claims description 33
- 239000000706 filtrate Substances 0.000 claims description 32
- 238000003825 pressing Methods 0.000 claims description 31
- 239000003351 stiffener Substances 0.000 claims description 31
- 238000009434 installation Methods 0.000 claims description 29
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims 1
- 238000001914 filtration Methods 0.000 abstract description 22
- 230000008859 change Effects 0.000 abstract description 8
- 239000002360 explosive Substances 0.000 abstract description 3
- 231100000331 toxic Toxicity 0.000 abstract description 3
- 230000002588 toxic effect Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 15
- 239000004576 sand Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 12
- 230000001105 regulatory effect Effects 0.000 description 12
- 238000004880 explosion Methods 0.000 description 10
- 230000009467 reduction Effects 0.000 description 9
- 238000010892 electric spark Methods 0.000 description 5
- 239000010687 lubricating oil Substances 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 230000003139 buffering effect Effects 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000037237 body shape Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000013327 media filtration Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention relates to centrifugal blower technical fields,Specifically a kind of low noise explosion-proof fan,Casing upper end is provided, in sequence from bottom to top, with change inlet pipe,Muffler and rainhat,Become inlet pipe lower end to be sealedly and fixedly connected with casing upper end,Become inlet pipe upper end to be sealedly and fixedly connected with muffler lower end,Muffler upper end is sealedly and fixedly connected with rainhat lower end,Wind is after air inlet enters chassis cavity successively by becoming inlet pipe,It is discharged by the air outlet of rainhat after muffler,Become narrow upper width under inlet pipe,On muffler,Lower both ends open,Vertical acoustical panel is equipped at intervals in muffler,Cap body upper end is equipped with crown,Cap body lower ending opening,Rainhat cap body is equipped with the second air outlet,Gravity valve gear is equipped at air inlet and air outlet,Air inlet front end is equipped with self cleaning filtering device,With can automatically cut off,It prevents toxic,It is harmful,The advantages that inflammable and explosive gas leak and superior noiseproof feature.
Description
Technical field
The present invention relates to centrifugal blower technical field, specifically a kind of low noise explosion-proof fan.
Background technology
In lubricating oil refinement system, extreme temperatures in some reaction kettles, but again containing inflammable in surrounding air
Lubricating oil is needed using wind turbine to avoid the safety accidents such as explosion caused by temperature is excessively high to its reaction kettle and its surrounding space
It radiates, and must timely cut off wind turbine inlet and outlet when wind turbine powers off or shuts down, to prevent inflammable gas from leaking, make
At installation accident.Lubricating oil refines workshop to the more demanding of noise, therefore needs in fan design as possible to wind turbine noise reduction,
To meet customer need.In addition, current wind turbine, air inlet is generally directly welded with impeller front disc, due to air inlet and leaf
Wheel generally uses steel, and material is identical, and high-speed rotating impeller is easy to generate electric spark between air inlet, in turn results in
Inflammable air explodes, and does not meet requirement of explosion proof.
Currently, the special fan of system is not refined specifically for lubricating oil on the market, it is difficult to which meeting lubricating oil refines vehicle
Between needs.It is common such as China Patent Publication No. CN202659532U, application number 09 day 01 year 2013, disclose it is a kind of not
Change the wind turbine of dispatch gas flow, it is characterised in that：Including Blower Housing, air inlet and outlet, motor and impeller；It is described
Blower Housing is in rectangular parallelepiped structure；One side-lower of the Blower Housing is equipped with air inlet；On the other side of the Blower Housing
Side is equipped with air outlet；The rear end of the Blower Housing is equipped with motor；The impeller setting is central in Blower Housing, defeated with motor
Shaft is connected；The impeller is parallel to air inlet and air outlet.Although this wind turbine has increase, dispatch gas flow does not increase but
The advantages that not changing dispatch gas flow of floor space, still, the wind turbine do not carry out noise reduction processing, also be not present rain-proof,
The functions such as anti-leak.
Secondly, for having the wind turbine centainly endangered for important place and pumped (conveying) medium, it usually needs entered the wind in wind turbine
Mouthful or air outlet at gravity valve gear is set, in order to wind turbine can ensure to cut off medium in time in shutdown or failure it is defeated
It send, to avoid causing damages.It is closed currently, common gravity valve gear generally comprises gravity valve yoke, shaft, blade and blade
Unit is closed, gravity valve yoke is usually the square structure being made of left plate, right plate, epipleural, lower side panel, rectangular weight valve
Frame is horizontal from top to bottom to be uniformly hinged with shaft, and blade is fixed in shaft, linkage portion, adjacent leaf are respectively equipped on blade
Piece is realized through linkage portion and is linked, wherein first shaft one end is equipped with blade close portion, makes blade in the effect of blade close portion
Under be automatically closed, for the purpose of loss of weight, gravity valve yoke is generally formed by fixedly connecting using thin plate, and shaft diameter can not mistake
Greatly.During the installation process, bearing outer ring needs are fixedly connected with gravity valve yoke, and shaft needs are fixedly connected with bearing inner race,
Usually all using being fixedly connected, due to but thin plate be all easily deformed when being fixedly connected with thin axis, and then cause to install
Difficulty, no matter working hour or cost of manufacture it is relatively high.Deformed when being fixedly connected larger, entire gravity valve gear just can only
It remakes, causes the waste of resource.
Again, in existing fan industry, the cleaning of the high air of dust storm content is mainly hindered using filter
Gear and absorption, typical filter device are that bending is arranged on filter frame in wavy strainer, and bulky objects will be filtered
It nets blocking and stays in outside filter or be adsorbed on filter screen, filter screen absorption sand and dust can excessively increase the resistance of system, air inlet
It measures small, cannot be satisfied equipment service requirement, need frequently to dismantle filter and strainer is cleaned, it is troublesome in poeration.Chinese patent
Apply for a kind of blower fan filtering devices of CN105289146 A, including air inlet connecting tube and blast pipe, the air inlet
There is connecting flange, the air intake of air inlet connecting tube to be bolted with blast pipe on the lateral wall of the outlet air end of connecting tube, into
It is inserted at least two filter screen devices in the front of air hose, is filled with and lives in the blast pipe cavity between two filter screen devices
Property charcoal particle, there are on the front side wall of blast pipe multiple through-holes that are spirally connected, press closer bolt and be screwed onto and be spirally connected in through-hole, press closer bolt
End have limiting section, the shrinkage pool that limiting section stretches into blast pipe and sleeve has on the side wall of corresponding filter screen device
In；The blast pipe, which is in the lower sidewalls of the front of filter screen device, has connected filtering connecting tube, filters and leads in connecting tube
It is connected to Object storing drum.The filter device improves filter effect by the way that more than two filter screens are arranged, in the front of filter screen device
Lower sidewalls on connected filtering connecting tube, the front object that the first filter screen is blocked in blast pipe can be by filtering connecting tube
It falls into Object storing drum, but still it is self-cleaning to cannot achieve filter.
Invention content
In order to solve deficiency in the prior art, the present invention is intended to provide a kind of can cut off in time in power-off or shutdown
Wind turbine is imported and exported, and prevents from leaking containing toxic, harmful, inflammable and explosive air, and the superior explosion-proof fan of noiseproof feature.
In order to realize that above-mentioned function, the present invention will use following technical scheme：
A kind of low noise explosion-proof fan, including casing and motor, casing leading flank are equipped with air inlet, motor, machine are equipped on rear side of casing
Shell inner cavity is equipped with impeller, and impeller is fixedly mounted on the output shaft of motor, it is characterised in that casing is the rectangular knot of upper end opening
Structure, casing upper end, which is provided, in sequence from bottom to top, with, becomes inlet pipe, muffler and rainhat, becomes inlet pipe lower end and the sealing of casing upper end is solid
Fixed connection becomes inlet pipe upper end and is sealedly and fixedly connected with muffler lower end, and muffler upper end is sealedly and fixedly connected with rainhat lower end,
Wind is successively discharged after becoming inlet pipe, muffler by the air outlet of rainhat after air inlet enters chassis cavity, wherein is become
Inlet pipe level cross-sectionn gradually increases narrow wide structure under formation from bottom to top, and muffler upper/lower terminal is open, in muffler
It is equipped at intervals with vertical acoustical panel, cap body upper end is equipped with crown, cap body lower ending opening, and rainhat includes cap body and crown, in cap body
Equipped with the second air outlet, gravity valve gear is equipped at air inlet and air outlet.
Impeller of the present invention is aerofoil impeller, and impeller includes shroud, hub disk and blade, annular between shroud and hub disk
Array is no less than 3 blades, and shroud is fixedly connected with air inlet rear end, air inlet be it is pre-large post-small horn-like, impeller and
Air inlet is steel structure, and impeller front disc is fixedly connected with air inlet rear end through copper connector, the copper connector
For the hollow cylinder copper pipe of forward and backward opening, copper connector front end is fixedly connected with air inlet back-end sealing, after copper connector
End is sealedly and fixedly connected with impeller front disc air inlet, and so design is primarily due to air inlet and impeller generally is steel,
If directly welding, at runtime, high-speed rotating impeller is easy to generate electric spark between air inlet wind turbine, in turn results in
Inflammable air explodes, and copper connector processed is arranged between air inlet and impeller, due to the material between impeller and copper connector
Matter is different, meets requirement of explosion proof, will not cause air burst.
Rainhat cap body of the present invention under being narrow wide trapezoidal shape type, crown be by front apron and rear baffle, left gear
The inverted V-shaped structure of plate and right shell body composition, front apron tilt down from back to front, and rear baffle tilts down from front to back, convenient
It sluices, rainhat cap body front side board and cap body back side panel are respectively equipped with preceding second air outlet and rear second air outlet, and preceding second goes out
It is respectively equipped with gravity valve gear on air port and rear second air outlet, reinforcing prop is equipped between cap body left plate and cap body right plate,
To play the role of fixed reinforcement.
Arc-shaped front baffle and arc-shaped rear bulkhead are equipped in cap body of the present invention, arc-shaped front baffle is gone out by preceding second
Air port upper end is excessively formed preceding arc-shaped concave to muffler, and arc-shaped rear bulkhead is from rear second air outlet upper end to muffler mistake
Arc-shaped concave after degree is formed.
Divide between cap body leading flank of the present invention and preceding arc-shaped concave, between cap body trailing flank and rear arc-shaped concave
Not She You preceding stiffener plate and rear stiffener plate, stiffener plate is fanning strip, the apex angle corner of stiffener plate and leading flank or after
Side is fixedly connected, and the arc convex of stiffener plate is cooperated to arc-shaped front baffle or arc-shaped rear bulkhead curved surface in right
Arc-shaped partition board plays the role of fixed support, stiffener plate be equipped with the matched through-hole of shaft, it is fixed to be equipped on rear side of through-hole
Position mounting hole, positioning hole are equipped with blade limited block, prevent blade from excessively overturning.
Change inlet pipe narrow wide halfpace shape or round table-like under of the present invention, it is narrow under being arranged between casing and muffler
Upper wide change inlet pipe can both be such that casing is delivered to gradual in muffler under the premise of Blower Housing size is certain
Wind speed reduces, and noise becomes smaller；The volume of muffler can be increased again（At muffler lower ending opening with become inlet pipe upper end opening at it is close
Sealing connects surely）, weaken muffler whereby due to being equipped at intervals with acoustical panel and the shortcomings that block air duct.
Gravity valve gear of the present invention is equipped with the rectangular weight valve being made of left plate, right plate, epipleural, lower side panel
Frame, rectangular gravity valve yoke are fixedly connected with casing leading flank, and rectangular gravity valve yoke is horizontal from top to bottom to be uniformly hinged with
Shaft, shaft are equipped with blade, fixed in shaft to set axis pin and be hinged with interlocking bar, in favor of by interlocking bar to blade realization
It moves synchronously, adjacent shafts left part or right part are equipped with blade close portion, and blade closure includes weight, regulating arm and spiral shell
Bolt, regulating arm one end is vertical with shaft to be fixedly connected, and the regulating arm other end is vertical with weight to be fixedly connected, and weldering is specifically as follows
It connects, screw rod can also be passed through, bolt is fixedly connected.
Gravity valve gear of the present invention includes the rectangular gravity being made of left plate, right plate, epipleural, lower side panel
Valve yoke, rectangular gravity valve yoke is horizontal from top to bottom to be uniformly hinged with shaft, and blade, shaft or so two are fixed in shaft
End is respectively equipped with linkage portion, and adjacent blades realize through linkage portion and link that one of roller end is equipped with blade close portion, makes leaf
Piece is automatically closed under the action of blade close portion, it is characterised in that gravity valve yoke arranged on left and right sides is correspondingly provided with shaft and fixes
Portion, shaft fixed part include axle sleeve mounting plate, pressing plate, axle sleeve and locking nut, and the nearly weight valve frame end of axle sleeve is equipped with rectangular peace
Fill end face, axle sleeve mounting plate be equipped with from top to bottom with the axle sleeve mounting hole of the axle sleeve corresponding cooperation in installation end face, pressing plate from upper and
Under be equipped be movably equipped with axle sleeve with axle sleeve position, the matched first through hole of size, shaft both ends successively, axle sleeve mounting plate warp
Axle sleeve mounting hole is sleeved on the rectangular installation end face of axle sleeve, on the right side of weight valve frame left plate left side and weight valve frame right plate
It is equipped with stud on face, is equipped on bearing mounting plate, pressing plate and matched second through-hole of stud, bearing mounting plate and pressing plate
It is sleeved on stud and is fixed through nut.
Linkage portion of the present invention includes interlocking bar and connecting rod, and wherein interlocking bar rear end is equipped at intervals with positioning tab,
Connecting rod one end is vertical with shaft to be fixedly connected, and the connecting rod other end is hinged by axis pin and positioning tab, when blade rotates,
Shaft and connecting rod rotate therewith, and since wind is different to the force of each blade, each blade rotational angle can be caused different, shadow
Outlet and inlet effect is rung, positioning tab of each connecting rod by axis pin and interlocking bar is hinged, it can be achieved that all shaft synchronous belts
It is dynamic.
Blade close portion of the present invention includes weight, regulating arm and nut, regulating arm one end fixed company vertical with shaft
It connects, the regulating arm other end is vertical with weight to be fixedly connected, and is specifically as follows and is fixedly connected, and can also be fixed by screw rod, nut
Connection.
Axle sleeve mounting hole of the present invention cross section is more than axle sleeve and installs end face cross section；The diameter of pressing plate through-hole is more than axis
The diameter for covering ontology is less than the width of axle sleeve installation end face, in order to adjust and install.
Installation end left side of face of the present invention face is the arc-shaped convex surface of protrusion to the left, and installation end right side of face face is convex to the right
The arc-shaped convex surface risen.
The thickness of axle sleeve mounting plate of the present invention installs the thickness of end face not less than axle sleeve, in order to which pressing plate is pressed in axle sleeve
It installs on end face, axle sleeve is fixed.
Weight valve frame left plate right side of the present invention or weight valve frame right left side of face face are equipped with limited block,
To prevent from causing blade to rotate when wind-force is excessive.
Air inlet front end of the present invention be equipped with self cleaning filtering device, filter include filter frame and be mounted on filter
Two layers on the frame filtrate being mutually parallel forms gap, filter frame lower section between first layer filtrate and second layer filtrate
It is provided with dust collecting trough, gap is communicated with dust collecting trough, and dust collecting trough is connected by diversion pipe with centrifugal blower；Wind speed is in 1 ~ 4m/s ranges
Gap size between interior first layer filtrate and second layer filtrate is 15 ~ 55mm.
The present invention is equipped with PLC control unit, and the PLC control unit includes plc controllers, the first air velocity transducer, the
Two air velocity transducers, centrifugal blower, pressure sensor and electromagnetic vibrator, wherein dust trench bottom is equipped with pressure sensor, mistake
Filter inlet side and air side are respectively equipped with the first air velocity transducer and the second air velocity transducer, and electromagnetism is arranged on filter frame
Vibrator.
In use, the self cleaning filtering device of air inlet, self cleaning filtering device is using two layers of filtrate and between filtrate
Certain interval is formed, under the blocking of first layer filtrate, wind speed can decline the air containing sand and dust, and sand and dust slow,
It is fallen in dust collecting trough under the larger sand and dust meeting of proportion is automatic under the action of gravity, the smaller sand and dust of proportion can be just adsorbed on filtrate；
Start electromagnetic vibrator when filtrate dust reaches to hold when the dirt upper limit needs cleaning, drives filtrate high frequency oscillation, shake off husky on filtrate
Dirt is collected into dust collecting trough sand and dust and is discharged to device external under centrifugal blower suction function, to achieve the purpose that automated cleaning.Wind
Machine impeller blade rotates, and air inlet gravity valve gear is made to open, and wind enters change inlet pipe, buffering drop from casing upper end opening
Enter muffler after speed, to rainhat after muffler noise reduction, the gravity valve gear at rainhat air outlet is opened under wind pressure,
Wind is discharged from air outlet.When an emergency situation is encountered cuts off the power, due to being provided with weight valve at air inlet and air outlet
Device, wind turbine can turn itself off air inlet and air outlet, and wind turbine medium is avoided to leak, in addition, when wind turbine long-time storage or
Other materials can also be avoided to enter wind turbine when transport；Copper connector processed is set between air inlet and impeller, due to impeller
Material between copper connector is different, meets requirement of explosion proof, will not cause air burst.In addition, fan outlet configuration is anti-
Rain cap effectively can prevent sleet from entering wind turbine, increase the service life of wind turbine.
Due to using the above structure, the present invention have can automated cleaning filtering, the conveying of wind turbine medium can be automatically cut off, made an uproar
The advantages that sound is low, explosion-proof.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is another structural schematic diagram of the present invention.
Fig. 3 is the structural exploded view of Fig. 1.
Fig. 4 is that rainhat removes the structural schematic diagram after right plate.
Fig. 5 is the structural schematic diagram of stiffener plate.
The structural schematic diagram that Fig. 6 is connected between air inlet and copper connector.
Fig. 7 is the structural schematic diagram of self cleaning filtering device.
Fig. 8 filter front views.
Fig. 9 is the A-A sectional views in Fig. 8.
Figure 10 is electromagnetic vibrator partial schematic diagram.
Figure 11 is the structural schematic diagram of gravity valve gear.
Figure 12 is the left view of Figure 11.
Figure 13 is the right view of Figure 11.
Figure 14 is the stereogram of Figure 11.
Figure 15 is the exploded view of Figure 11.
Figure 16 is the structural schematic diagram of axle sleeve.
Figure 17 is the left view of Figure 16.
Figure 18 is the structural schematic diagram of axle sleeve mounting plate.
Figure 19 is the structural schematic diagram of pressing plate.
Figure 20 is the structural schematic diagram of interlocking bar.
Specific implementation mode
Below in conjunction with attached drawing, the present invention is further illustrated：
Embodiment one
As shown, a kind of low noise explosion-proof fan, including casing 1 and motor 2, motor 2 use fire-proof motor, are equipped on the outside of motor
Motor shield 3, casing leading flank are equipped with air inlet 4, motor 2 are equipped on rear side of casing, and chassis cavity is equipped with impeller, and impeller is fixed
On the output shaft of motor, impeller is aerofoil impeller, and impeller includes shroud 6, hub disk 7 and blade 5, shroud and hub disk it
Between annular array be no less than 3 blades, shroud is fixedly connected with air inlet rear end, air inlet be it is pre-large post-small horn-like,
Impeller and air inlet are steel structure, and impeller front disc is fixedly connected with air inlet rear end through copper connector 8, described copper
The hollow cylinder copper pipe of 8 forward and backward opening of connector, copper connector front end are fixedly connected with air inlet back-end sealing, and copper connects
Fitting rear end is sealedly and fixedly connected with impeller front disc air inlet, and so design is primarily due to air inlet and impeller generally is
Steel, if directly welding, at runtime, high-speed rotating impeller is easy to generate electric spark between air inlet wind turbine, into
And cause inflammable air to explode, copper connector processed is set between air inlet and impeller, due to impeller and copper connector it
Between material it is different, meet requirement of explosion proof, air burst will not be caused.Casing is the square structure of upper end opening, 1 upper end of casing
It is provided, in sequence from bottom to top, with and becomes inlet pipe 9, muffler 10 and rainhat 11, wherein it is gradual from bottom to top to become inlet pipe level cross-sectionn
Increasing narrow wide structure under being formed, muffler 10 is open for upper/lower terminal, and vertical acoustical panel is equipped at intervals in muffler 10,
Rainhat 11 includes cap body and crown 12, and cap body level cross-sectionn gradually increases narrow wide structure under formation from bottom to top, prevents
Rain cap cap body narrow loose trapezoidal shape type, inverted V-shaped that crown is made of front apron and rear baffle, right baffle-plate and right shell body under being
Structure, front apron tilt down from back to front, and rear baffle tilts down from front to back, facilitate sluicing, rainhat cap body front side board
It is respectively equipped with preceding second air outlet and rear second air outlet with cap body back side panel, arc-shaped front baffle 21 and circular arc are equipped in cap body
Shape rear bulkhead 22, arc-shaped front baffle is excessively formed preceding arc-shaped concave from preceding second air outlet upper end to muffler, arc-shaped
Rear bulkhead is excessively formed rear arc-shaped concave from rear second air outlet upper end to muffler.Cap body leading flank and preceding arc-shaped concave
Between, between cap body trailing flank and rear arc-shaped concave be respectively equipped with preceding stiffener plate 13 and rear stiffener plate 13, stiffener plate
Apex angle corner for fanning strip, stiffener plate is fixedly connected with leading flank or trailing flank, the arc convex and circular arc of stiffener plate
Shape front baffle or arc-shaped rear bulkhead curved surface are cooperated in playing the role of fixed support, stiffener plate to arc-shaped partition board
It is equipped with and is equipped with positioning hole 15 with the matched through-hole 14 of shaft, through-hole rear side, positioning hole 15 is limited equipped with blade
Position block, prevents blade from excessively overturning.Reinforcing prop 17 is equipped between cap body left plate and cap body right plate, to play fixed reinforcement
Effect.Be respectively equipped with gravity valve gear 16 on air inlet, preceding second air outlet and rear second air outlet, gravity valve gear be equipped with by
The rectangular gravity valve yoke of left plate, right plate, epipleural, lower side panel composition, gravity valve yoke is fixed with casing leading flank to be connected
It connects, gravity valve yoke is horizontal from top to bottom to be uniformly hinged with shaft, and shaft is equipped with blade, is fixed in shaft and set axis pin and linkage
Bar 17 is hinged, and in favor of being moved synchronously to blade realization by interlocking bar, adjacent shafts left part or right part are equipped with blade
Close portion, blade closure include weight 18, regulating arm and bolt, and regulating arm one end is vertical with shaft to be fixedly connected, regulating arm
The other end is vertical with weight to be fixedly connected, and welding is specifically as follows, and can also pass through screw rod, bolt is fixedly connected.Become under inlet pipe
End be sealedly and fixedly connected with casing upper end, become inlet pipe upper end be sealedly and fixedly connected with muffler lower end, muffler upper end and prevent
Rain cap lower end is sealedly and fixedly connected, and becomes inlet pipe narrow wide halfpace shape or round table-like under, is arranged between casing and muffler
Under narrow wide change inlet pipe, both casing can be made to be delivered in muffler under the premise of Blower Housing size is certain
Gradual wind speed reduces, and noise becomes smaller；The volume of muffler can be increased again（At muffler lower ending opening with become inlet pipe upper end opening
Place's sealing fixation connects）, weaken muffler whereby due to being equipped at intervals with acoustical panel and the shortcomings that block air duct.Under impeller effect,
Wind is successively discharged after becoming inlet pipe, muffler by the air outlet of rainhat after air inlet enters chassis cavity, muffler
Including shell, case inside is equipped with silencing cotton layer and more hollow plate layers successively from outer to inner, is equipped in muffler spaced perpendicular
Straight acoustical panel 19, muffler arranged on left and right sides are respectively equipped with positioning installation frame 20, and positioning installation frame is equipped with leads to convenient for what dress was hung
Hole.
In use, wind turbine impeller blade rotates, air inlet gravity valve gear is set to open, wind is from casing upper end opening
Into inlet pipe is become, enter muffler after buffering reduction of speed, to rainhat after muffler noise reduction, the weight valve at rainhat air outlet
Device is opened under wind pressure, and wind is discharged from air outlet.When an emergency situation is encountered cuts off the power, due in air inlet and air outlet
Place is provided with gravity valve gear, and wind turbine can turn itself off air inlet and air outlet, and wind turbine medium is avoided to leak, when wind turbine is long
Time stores or other materials can also be avoided to enter wind turbine when transporting；Copper system connection is set between air inlet and impeller
Part meets requirement of explosion proof, will not cause air burst since the material between impeller and copper connector is different.In addition, wind turbine
Outlet configuration rainhat effectively can prevent sleet from entering wind turbine, increase the service life of wind turbine.Due to using the above structure,
Due to using the above structure, the present invention have can automated cleaning filtering, can to automatically cut off the conveying of wind turbine medium, noise low, anti-
The advantages that quick-fried.
Embodiment two
As shown, a kind of low noise explosion-proof fan, including casing 1 and motor 2, motor 2 use fire-proof motor, are equipped on the outside of motor
Motor shield 3, casing leading flank are equipped with air inlet 4, motor 2 are equipped on rear side of casing, and chassis cavity is equipped with impeller, and impeller is fixed
On the output shaft of motor, impeller is aerofoil impeller, and impeller includes shroud 6, hub disk 7 and blade 5, shroud and hub disk it
Between annular array be no less than 3 blades, shroud is fixedly connected with air inlet rear end, air inlet be it is pre-large post-small horn-like,
Impeller and air inlet are steel structure, and impeller front disc is fixedly connected with air inlet rear end through copper connector 8, described copper
The hollow cylinder copper pipe of 8 forward and backward opening of connector, copper connector front end are fixedly connected with air inlet back-end sealing, and copper connects
Fitting rear end is sealedly and fixedly connected with impeller front disc air inlet, and so design is primarily due to air inlet and impeller generally is
Steel, if directly welding, at runtime, high-speed rotating impeller is easy to generate electric spark between air inlet wind turbine, into
And cause inflammable air to explode, copper connector processed is set between air inlet and impeller, due to impeller and copper connector it
Between material it is different, meet requirement of explosion proof, air burst will not be caused.Casing is the square structure of upper end opening, 1 upper end of casing
It is provided, in sequence from bottom to top, with and becomes inlet pipe 9, muffler 10 and rainhat 11, wherein it is gradual from bottom to top to become inlet pipe level cross-sectionn
Increasing narrow wide structure under being formed, muffler 10 is open for upper/lower terminal, and vertical acoustical panel is equipped at intervals in muffler 10,
Rainhat 11 includes cap body and crown 12, and cap body level cross-sectionn gradually increases narrow wide structure under formation from bottom to top, prevents
Rain cap cap body narrow loose trapezoidal shape type, inverted V-shaped that crown is made of front apron and rear baffle, right baffle-plate and right shell body under being
Structure, front apron tilt down from back to front, and rear baffle tilts down from front to back, facilitate sluicing, rainhat cap body front side board
It is respectively equipped with preceding second air outlet and rear second air outlet with cap body back side panel, arc-shaped front baffle 21 and circular arc are equipped in cap body
Shape rear bulkhead 22, arc-shaped front baffle is excessively formed preceding arc-shaped concave from preceding second air outlet upper end to muffler, arc-shaped
Rear bulkhead is excessively formed rear arc-shaped concave from rear second air outlet upper end to muffler.Cap body leading flank and preceding arc-shaped concave
Between, between cap body trailing flank and rear arc-shaped concave be respectively equipped with preceding stiffener plate 13 and rear stiffener plate 13, stiffener plate
Apex angle corner for fanning strip, stiffener plate is fixedly connected with leading flank or trailing flank, the arc convex and circular arc of stiffener plate
Shape front baffle or arc-shaped rear bulkhead curved surface are cooperated in playing the role of fixed support, stiffener plate to arc-shaped partition board
It is equipped with and is equipped with positioning hole 15 with the matched through-hole 14 of shaft, through-hole rear side, positioning hole 15 is limited equipped with blade
Position block, prevents blade from excessively overturning.Reinforcing prop 17 is equipped between cap body left plate and cap body right plate, to play fixed reinforcement
Effect.
Gravity valve gear 30, gravity valve gear packet are respectively equipped on air inlet, preceding second air outlet and rear second air outlet
Include the rectangular gravity valve yoke 30 being made of left plate, right plate, epipleural, lower side panel, weight valve frame left plate and right side
It is respectively equipped on plate and is socketed on gravity valve yoke through axis hole with the matched axis hole of shaft, the left and right both ends of shaft, square frame
30 it is horizontal from top to bottom be uniformly hinged with shaft, blade 31 is fixed in shaft, shaft left and right ends are respectively equipped with linkage portion,
Adjacent blades are realized through linkage portion and are linked, and in favor of being moved synchronously to blade realization by linkage portion, the linkage portion includes connection
Lever 32 and connecting rod 33, wherein interlocking bar are length and the matched strip of gravity valve yoke, interlocking bar rear end interval
Equipped with number cooperation positioning tab 34 corresponding with shaft, connecting rod one end is vertical with shaft to be fixedly connected, the connecting rod other end
It is hinged by axis pin and positioning tab, one of roller end is equipped with blade close portion, makes blade in blade close portion
It is automatically closed under effect, to achieve the purpose that protection, the blade close portion include weight 35, regulating arm 36 and nut, adjusts
Arm one end is vertical with shaft 37 to be fixedly connected, and adjusts that the wall other end is vertical with weight 35 is fixedly connected, and is specifically as follows fixed company
It connects, can also be fixedly connected by screw rod, nut, gravity valve yoke arranged on left and right sides is correspondingly provided with shaft fixed part, and shaft is fixed
Portion includes axle sleeve mounting plate 38, pressing plate 39, axle sleeve 40 and locking nut, and 40 one end of axle sleeve is equipped with rectangular installation end face 41, installation
End face left side is the arc-shaped convex surface 42 of protrusion to the left, and installation end right side of face face is the arc-shaped convex surface 43 of protrusion to the right, axis
Cover mounting plate be equipped with from top to bottom with the axle sleeve mounting hole 44 of the axle sleeve corresponding cooperation in installation end face, pressing plate 39 is from top to bottom successively
Equipped with axle sleeve position, the matched first through hole 45 of size, shaft both ends are movably equipped with axle sleeve 40, axle sleeve mounting plate warp beam
Set mounting hole is sleeved on the rectangular installation end face of axle sleeve, prevents axle sleeve from rotating, pressing plate is through nut and axle sleeve mounting plate, axle sleeve mounting plate
And gravity valve yoke is fixedly connected, axle sleeve mounting hole cross section is more than axle sleeve and installs end face cross section, adjustable after so that axle sleeve is installed；
The diameter that the diameter of pressing plate through-hole is more than sleeve body is less than the width that axle sleeve installs end face, and the thickness of axle sleeve mounting plate is not less than
Axle sleeve installs the thickness of end face, in order to which pressing plate is pressed on axle sleeve installation end face, axle sleeve is fixed, weight valve frame left
Plate left side and weight valve frame right plate right side are equipped with stud 45, are equipped on bearing mounting plate, pressing plate and stud phase
Second through-hole 46 of cooperation, bearing mounting plate and pressing plate are sleeved on stud and are fixed through nut.When the wind turbine weight valve is installed, only
The axle sleeve processed need to be set to roller end, by axle sleeve installation end face be placed in the axle sleeve mounting hole of axle sleeve mounting plate, with
Pressing plate and the good axle sleeve of nut secured adjusted.End face cross section, therefore axle sleeve are installed since axle sleeve mounting hole cross section is more than axle sleeve
It can be adjusted along any direction after installation；The diameter that the diameter of pressing plate through-hole is more than sleeve body is less than the width that axle sleeve installs end face,
To facilitate fixation.The bearing that original gravity valve gear uses is replaced with mach axle sleeve by the present invention, and bearing block is replaced with
Mounting plate is installed face size since mounting plate installation pore size is more than axle sleeve, therefore can be adjusted along any direction after axle sleeve installation.
Increase axle sleeve pressing plate, so as to the good axle sleeve of secured adjusted, end surface thickness is installed since axle sleeve installation plate thickness is less than axle sleeve, therefore will
Pressing plate can be good at fixing after being connect with nut with frame.
In use, wind turbine impeller blade rotates, air inlet gravity valve gear is made to open, under fan action, blade
It rotates and opens, shaft and connecting rod rotate therewith, and since wind is different to the force of each blade, each blade can be caused to rotate
Angle is different, influences outlet and inlet effect, and positioning tab of each connecting rod by axis pin and interlocking bar is hinged, it can be achieved that institute
There is shaft synchronous drive；Wind enters change inlet pipe from casing upper end opening, enters muffler after buffering reduction of speed, through muffler noise reduction
Afterwards to rainhat, the gravity valve gear at rainhat air outlet is opened under wind pressure, and wind is discharged from air outlet.When encountering urgent feelings
When condition is cut off the power, due to being provided with gravity valve gear at air inlet and air outlet, wind turbine can turn itself off air inlet
And air outlet, it avoids wind turbine medium from leaking, other materials can also be avoided to enter wind turbine when wind turbine long-time storage or transport；
And copper connector processed is set between air inlet and impeller, since the material between impeller and copper connector is different, meet
Requirement of explosion proof will not cause air burst.In addition, fan outlet configuration rainhat effectively can prevent sleet from entering wind turbine,
Increase the service life of wind turbine.Due to using the above structure, the present invention has and can automatically cut off the conveying of wind turbine medium, noise
The advantages that low, explosion-proof.
Embodiment three
As shown, a kind of low noise explosion-proof fan, including casing 1 and motor 2, motor 2 use fire-proof motor, are equipped on the outside of motor
Motor shield 3, casing leading flank are equipped with air inlet 4, motor 2 are equipped on rear side of casing, and chassis cavity is equipped with impeller, and impeller is fixed
On the output shaft of motor, impeller is aerofoil impeller, and impeller includes shroud 6, hub disk 7 and blade 5, shroud and hub disk it
Between annular array be no less than 3 blades, shroud is fixedly connected with air inlet rear end, air inlet be it is pre-large post-small horn-like,
Impeller and air inlet are steel structure, and impeller front disc is fixedly connected with air inlet rear end through copper connector 8, described copper
The hollow cylinder copper pipe of 8 forward and backward opening of connector, copper connector front end are fixedly connected with air inlet back-end sealing, and copper connects
Fitting rear end is sealedly and fixedly connected with impeller front disc air inlet, and so design is primarily due to air inlet and impeller generally is
Steel, if directly welding, at runtime, high-speed rotating impeller is easy to generate electric spark between air inlet wind turbine, into
And cause inflammable air to explode, copper connector processed is set between air inlet and impeller, due to impeller and copper connector it
Between material it is different, meet requirement of explosion proof, air burst will not be caused.Casing is the square structure of upper end opening, 1 upper end of casing
It is provided, in sequence from bottom to top, with and becomes inlet pipe 9, muffler 10 and rainhat 11, wherein it is gradual from bottom to top to become inlet pipe level cross-sectionn
Increasing narrow wide structure under being formed, muffler 10 is open for upper/lower terminal, and vertical acoustical panel is equipped at intervals in muffler 10,
Rainhat 11 includes cap body and crown 12, and cap body level cross-sectionn gradually increases narrow wide structure under formation from bottom to top, prevents
Rain cap cap body narrow loose trapezoidal shape type, inverted V-shaped that crown is made of front apron and rear baffle, right baffle-plate and right shell body under being
Structure, front apron tilt down from back to front, and rear baffle tilts down from front to back, facilitate sluicing, rainhat cap body front side board
It is respectively equipped with preceding second air outlet and rear second air outlet with cap body back side panel, arc-shaped front baffle 21 and circular arc are equipped in cap body
Shape rear bulkhead 22, arc-shaped front baffle is excessively formed preceding arc-shaped concave from preceding second air outlet upper end to muffler, arc-shaped
Rear bulkhead is excessively formed rear arc-shaped concave from rear second air outlet upper end to muffler.Cap body leading flank and preceding arc-shaped concave
Between, between cap body trailing flank and rear arc-shaped concave be respectively equipped with preceding stiffener plate 13 and rear stiffener plate 13, stiffener plate
Apex angle corner for fanning strip, stiffener plate is fixedly connected with leading flank or trailing flank, the arc convex and circular arc of stiffener plate
Shape front baffle or arc-shaped rear bulkhead curved surface are cooperated in playing the role of fixed support, stiffener plate to arc-shaped partition board
It is equipped with and is equipped with positioning hole 15 with the matched through-hole 14 of shaft, through-hole rear side, positioning hole 15 is limited equipped with blade
Position block, prevents blade from excessively overturning.Reinforcing prop 17 is equipped between cap body left plate and cap body right plate, to play fixed reinforcement
Effect.Be respectively equipped with gravity valve gear 30 on air inlet, preceding second air outlet and rear second air outlet, gravity valve gear include by
The rectangular gravity valve yoke 30 of left plate, right plate, epipleural, lower side panel composition, on weight valve frame left plate and right plate
It is respectively equipped with and is socketed on gravity valve yoke through axis hole with the matched axis hole of shaft, the left and right both ends of shaft, square frame 30 is certainly
Upper and lower level is uniformly hinged with shaft, blade 31 is fixed in shaft, shaft left and right ends are respectively equipped with linkage portion, adjacent
Vanes linkage portion realizes linkage, and in favor of being moved synchronously to blade realization by linkage portion, the linkage portion includes interlocking bar
32 and connecting rod 33, wherein interlocking bar is length and the matched strip of gravity valve yoke, and interlocking bar rear end is equipped at intervals with
Number cooperation positioning tab 34 corresponding with shaft, connecting rod one end is vertical with shaft to be fixedly connected, and the connecting rod other end passes through
Axis pin is hinged with positioning tab, and one of roller end is equipped with blade close portion, makes blade in the effect of blade close portion
Under be automatically closed, to achieve the purpose that protection, the blade close portion include weight 35, regulating arm 36 and nut, regulating arm one
End is vertical with shaft 37 to be fixedly connected, and the wall other end is vertical with weight 35 is fixedly connected for adjusting, is specifically as follows and is fixedly connected,
It can be fixedly connected by screw rod, nut, gravity valve yoke arranged on left and right sides is correspondingly provided with shaft fixed part, shaft fixed part packet
Axle sleeve mounting plate 38, pressing plate 39, axle sleeve 40 and locking nut are included, 40 one end of axle sleeve is equipped with rectangular installation end face 41, installs end face
Left side is the arc-shaped convex surface 42 of protrusion to the left, and installation end right side of face face is the arc-shaped convex surface 43 of protrusion to the right, axle sleeve peace
Loading board is equipped with the axle sleeve mounting hole 44 of cooperation corresponding with axle sleeve installation end face from top to bottom, and pressing plate 39 is equipped with successively from top to bottom
With axle sleeve position, the matched first through hole 45 of size, shaft both ends are movably equipped with axle sleeve 40, axle sleeve mounting plate warp beam sleeve peace
Dress hole is sleeved on the rectangular installation end face of axle sleeve, prevents axle sleeve from rotating, and pressing plate is through nut and axle sleeve mounting plate, axle sleeve mounting plate and again
Power valve yoke is fixedly connected, and axle sleeve mounting hole cross section is more than axle sleeve and installs end face cross section, adjustable after so that axle sleeve is installed；Pressing plate
The diameter that the diameter of through-hole is more than sleeve body is less than the width that axle sleeve installs end face, and the thickness of axle sleeve mounting plate is not less than axle sleeve
The thickness for installing end face is fixed axle sleeve, weight valve frame left plate is left in order to which pressing plate is pressed on axle sleeve installation end face
Side and weight valve frame right plate right side are equipped with stud 45, are equipped on bearing mounting plate, pressing plate and are matched with stud
The second through-hole 46, bearing mounting plate and pressing plate are sleeved on stud and are fixed through nut.It is filtered equipped with self-cleaning air inlet front end
Device, the self cleaning filtering device, including filter 23, filter 23 are double-layer filter material formula filter 23, filter 23
Two layers of filtrate being mutually parallel including filter frame 23-1 and on filter frame 23-1, first layer filtrate 23-2
Gap 23-4 is formed between second layer filtrate 23-3, in order to ensure the stabilization of first layer filtrate 23-2 and second layer filtrate 23-3
Property, support bar 23-5 is provided between first layer filtrate 23-2 and second layer filtrate 23-3, support bar 23-5 quantity is according to filtering
23 size of device is set, in the present embodiment signal four groups of support bar 23-5 are set, every group of support bar 23-5 one of them with the
One layer of filtrate 23-2 is fixed, another is fixed with second layer filtrate 23-3.It is provided with dust collecting trough 24 below filter frame 23-1,
Gap 23-4 is communicated with dust collecting trough 24, and dust collecting trough 24 is connected by diversion pipe 25 with centrifugal blower 26.On filter frame 23-1
It is dismounted equipped with 16 convenient filter of handle.
Electromagnetic vibrator 27, the electromagnetic vibrator 27 and PLC controller are set in this implementation on filter frame 23-1
Connection.It is set on 27 pedestal 27-1 of electromagnetic vibrator there are two mounting hole 27-2, bolt passes through mounting hole 27-2 by electromagnetic vibrator
27 are fixed on filter frame 23-1, convenient for disassembly and assembly.Electromagnetic vibrator 27 can apply ZDQ10, ZDQ25 and ZDQ50 etc. more
Kind model can meet the vibration of filter 23 and require, and electromagnetic vibrator 27 is existing procucts, and structure does not repeat herein.As
A kind of preferred embodiment, there are two electromagnetic vibrators 27, the both sides of filter frame 23-1 is separately positioned on, in PLC controller
Lower two electromagnetic vibrators 27 are controlled to work alternatively, such as can setting program, electromagnetic vibrator 27 starts after pressing start button, fortune
Stop after row 10min, switches second electromagnetic vibrator 27 and run, second electromagnetic vibrator 27 is automatically stopped after 20min.It adopts
The safety that device can be improved with two electromagnetic vibrators 27 prevents that filter can not be cleared up when single 27 failure of electromagnetic vibrator
23, and the service life of electromagnetic vibrator 27 can be extended.
Hold dirt situation to filter 23 for convenience to judge, first is respectively equipped in filter inlet side and air side
Air velocity transducer 28 and the second air velocity transducer 29, the first air velocity transducer 28 and the second air velocity transducer 29 are controlled with PLC respectively
System connection processed.The pedestal of first air velocity transducer 28 is fixed on filter frame lateral surface, the bottom of the second air velocity transducer 29
The equipment air inlet that seat is fixed on filter frame medial surface or is directly anchored to after filter.It is equipped with pressure in 24 bottom of dust collecting trough
Force snesor 30, pressure sensor 30 are connect with PLC control system.First air velocity transducer 28 and the second air velocity transducer 29 will
The air speed value is delivered to PLC control system, and PLC control system is compared wind speed, when the two difference reaches preset difference value
When, illustrate that the dust on filter screen has an impact the ventilation of filter, PLC control system starts electromagnetic vibrator 27 to filtering
Device 23 is cleared up.When 30 induction pressure of pressure sensor reaches PLC control system preset value, PLC control system control is opened
Dynamic centrifugal blower 26 clears up dust in dust collecting trough 24, by dust device for transferring.Air velocity transducer and pressure sensor are
Existing product only illustrates its installation site in figure.
Filtrate gap 23-4 and media filtration grade can be selected according to wind speed etc., is reached for different use environments
To optimal filter effect.
1 wind speed of table and filtrate gap 23-4 and filtrate hierarchical selection table
| Wind speed m/s | 1 | 2 | 3 | 4 |
| Filtrate gap mm | 15~25 | 25~35 | 35~45 | 45~55 |
| Media filtration grade | F8、F7 | F6、F5 | F5、G4 | G3、G2 |
Wherein, 1-10 μm of F8 filtering accuracies, filter efficiency 85%；1-10 μm of F7 filtering accuracies, filter efficiency 65%；F6 filtering accuracies
1-10 μm, filter efficiency 45%；1-10 μm of F5 filtering accuracies, filter efficiency 35%；G4 filtering accuracies >=5um, filter efficiency 90%；
G3 filtering accuracies >=5um, filter efficiency 85%；G2 filtering accuracies >=5um, filter efficiency 70%.
In use, wind turbine impeller blade rotates, air inlet gravity valve gear is made to open, under fan action, blade
It rotates and opens, shaft and connecting rod rotate therewith, and since wind is different to the force of each blade, each blade can be caused to rotate
Angle is different, influences outlet and inlet effect, and positioning tab of each connecting rod by axis pin and interlocking bar is hinged, it can be achieved that institute
There is shaft synchronous drive；Wind enters change inlet pipe from casing upper end opening, enters muffler after buffering reduction of speed, through muffler noise reduction
Afterwards to rainhat, the gravity valve gear at rainhat air outlet is opened under wind pressure, and wind is discharged from air outlet.When encountering urgent feelings
When condition is cut off the power, due to being provided with gravity valve gear at air inlet and air outlet, wind turbine can turn itself off air inlet
And air outlet, it avoids wind turbine medium from leaking, other materials can also be avoided to enter wind turbine when wind turbine long-time storage or transport；
And copper connector processed is set between air inlet and impeller, since the material between impeller and copper connector is different, meet
Requirement of explosion proof will not cause air burst.Fan outlet configuration rainhat can effectively prevent sleet from entering wind turbine, increase wind
The service life of machine.There is the air of sand and dust poor by having certain wind speed when double-layer filter material formula filter 23, is filtered in first layer
Under the blocking for expecting 23-2, wind speed can decline about original 75%, and sand and dust slow, under gravity the larger sand of proportion
It is fallen in dust collecting trough 24 under dirt meeting is automatic, the smaller sand and dust of proportion can be just adsorbed on filter 23, to extend filter 23
Service life.If the appearance dirt that sand and dust reach filter 23 is reached the standard grade, pass through electromagnetism of the PLC controls on filter frame 23-1
Vibrator 27 works, and drives filtrate high frequency oscillation, and the sand and dust that filtrate adsorbs is made to fall off, and is made by the negative pressure of centrifugal blower 26
With sand and dust are discharged to device external through diversion pipe 25, to reach the function of automated cleaning.Due to using the above structure, this hair
It is bright have can prevent from leaking containing toxic, harmful, inflammable and explosive air, and the superior explosion-proof fan of noiseproof feature, and
Simple in structure, compact appearance, convenient disassembly, can automatically cut off the advantages that wind turbine medium conveys, noise is low, explosion-proof at installation.By
In using the above structure, the present invention have can automated cleaning filtering, can to automatically cut off the conveying of wind turbine medium, noise low, explosion-proof
The advantages that.
Claims (10)
1. a kind of low noise explosion-proof fan, including casing and motor, the casing leading flank is equipped with air inlet, and electricity is equipped on rear side of casing
Machine, chassis cavity are equipped with impeller, and impeller is fixedly mounted on the output shaft of motor, it is characterised in that casing upper end goes out equipped with first
Air port, casing upper end, which is provided, in sequence from bottom to top, with, becomes inlet pipe, muffler and rainhat, becomes inlet pipe lower end and is sealed with the first air outlet
It is fixedly connected, becomes inlet pipe upper end and be sealedly and fixedly connected with muffler lower end, muffler upper end and the fixed company of rainhat lower end sealing
It connects, wherein become inlet pipe level cross-sectionn and gradually increase narrow wide structure under formation from bottom to top, muffler upper/lower terminal is opened
Mouthful, vertical acoustical panel is equipped at intervals in muffler, rainhat includes cap body and crown, and cap body upper end is equipped with crown, cap body lower end
Opening, cap body side are equipped with the second air outlet, gravity valve gear are equipped at air inlet and the second air outlet.
2. a kind of low noise explosion-proof fan according to claim 1, it is characterised in that impeller is aerofoil impeller, and impeller includes
Shroud, hub disk and blade, annular array is no less than 3 blades between shroud and hub disk, and shroud is fixed with air inlet rear end to be connected
It connects, air inlet is pre-large post-small horn-like, and impeller and air inlet are steel structure, impeller front disc and air inlet rear end warp
Copper connector is fixedly connected, wherein the copper connector is the hollow cylinder copper pipe of forward and backward opening, before copper connector
End is fixedly connected with air inlet back-end sealing, and copper connector rear end is sealedly and fixedly connected with impeller front disc air inlet.
3. a kind of low noise explosion-proof fan according to claim 1, it is characterised in that rainhat cap body narrow wide ladder under being
Platform shape type, rainhat cap body front side board and cap body back side panel are respectively equipped with preceding second air outlet and rear second air outlet, and preceding second
It is respectively equipped with gravity valve gear on air outlet and rear second air outlet, is equipped with and reinforces between cap body left plate and cap body right plate
Column is reinforced, the inverted V-shaped structure that crown is made of front apron and rear baffle, right baffle-plate and right shell body with playing the role of fixing,
Front apron tilts down from back to front, and rear baffle tilts down from front to back.
4. a kind of low noise explosion-proof fan according to claim 1, it is characterised in that be equipped in cap body arc-shaped front baffle and
Arc-shaped rear bulkhead, arc-shaped front baffle are excessively formed preceding arc-shaped concave, circular arc from preceding second air outlet upper end to muffler
Shape rear bulkhead is excessively formed rear arc-shaped concave from rear second air outlet upper end to muffler, cap body leading flank with it is preceding arc-shaped recessed
It is respectively equipped with preceding stiffener plate and rear stiffener plate between face, between cap body trailing flank and rear arc-shaped concave, stiffener plate is
The apex angle corner of fanning strip, stiffener plate is fixedly connected with leading flank or trailing flank, the arc convex of stiffener plate with it is arc-shaped
Front baffle or arc-shaped rear bulkhead curved surface match, and stiffener plate is equipped with to be equipped with the matched through-hole of shaft, through-hole rear side
Positioning hole, positioning hole are equipped with blade limited block.
5. a kind of low noise explosion-proof fan according to claim 1, it is characterised in that become inlet pipe narrow wide halfpace shape under
Or it is round table-like.
6. a kind of low noise explosion-proof fan according to claim 1, it is characterised in that the gravity valve gear, including by left side
The rectangular gravity valve yoke of plate, right plate, epipleural, lower side panel composition, rectangular gravity valve yoke is horizontal from top to bottom uniformly to be cut with scissors
It is connected to shaft, blade is fixed in shaft, shaft left and right ends are respectively equipped with linkage portion, and adjacent blades are realized through linkage portion to be joined
Dynamic, one of roller end is equipped with blade close portion, so that blade is automatically closed under the action of blade close portion, gravity valve buckle
Frame arranged on left and right sides is correspondingly provided with shaft fixed part, and shaft fixed part includes axle sleeve mounting plate, pressing plate, axle sleeve and locking nut, axis
It covers nearly weight valve frame end and is equipped with rectangular installation end face, end face is corresponding to match axle sleeve mounting plate equipped with being installed with axle sleeve from top to bottom
The axle sleeve mounting hole of conjunction, pressing plate be equipped with successively from top to bottom with axle sleeve position, the matched first through hole of size, shaft both ends are equal
It is movably equipped with axle sleeve, axle sleeve mounting plate warp beam sleeve mounting hole is sleeved on the rectangular installation end face of axle sleeve, and weight valve frame left plate is left
It is equipped with stud on side and weight valve frame right plate right side, is equipped on bearing mounting plate, pressing plate and is matched with stud
The second through-hole, bearing mounting plate and pressing plate are sleeved on stud and are fixed through nut.
7. a kind of low noise explosion-proof fan according to claim 6, it is characterised in that linkage portion includes interlocking bar and connecting rod,
Wherein interlocking bar rear end is equipped at intervals with positioning tab, and connecting rod one end is vertical with shaft to be fixedly connected, and the connecting rod other end is logical
Axis pin is crossed to be hinged with positioning tab.
8. a kind of low noise explosion-proof fan according to claim 6, it is characterised in that axle sleeve mounting hole cross section is more than axle sleeve
End face cross section is installed；The diameter that the diameter of pressing plate through-hole is more than sleeve body is less than the width that axle sleeve installs end face, axle sleeve peace
Thickness of the thickness of loading board not less than axle sleeve installation end face.
9. a kind of low noise explosion-proof fan according to claim 1, it is characterised in that filtered equipped with self-cleaning air inlet front end
Device, filter include filter frame and two layers of filtrate being mutually parallel on filter frame, first layer filtrate
Gap is formed between second layer filtrate, dust collecting trough is provided with below filter frame, and gap is communicated with dust collecting trough, and dust collecting trough is logical
Diversion pipe is crossed with centrifugal blower to be connected；Gap size of the wind speed within the scope of 1 ~ 4m/s between first layer filtrate and second layer filtrate
For 15 ~ 55mm.
10. a kind of low noise explosion-proof fan according to claim 9, it is characterised in that be equipped with PLC control unit, the PLC
Control unit includes plc controllers, the first air velocity transducer, the second air velocity transducer, centrifugal blower, pressure sensor and electromagnetism
Vibrator, wherein dust trench bottom is equipped with pressure sensor, and filter inlet side and air side are respectively equipped with the first wind speed sensing
Device and the second air velocity transducer.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737080A (en) * | 2019-02-19 | 2019-05-10 | 苏州众志新环冷却设备有限公司 | A kind of Air Exhaust Heat Dissipating Double-fuselage |
| CN111550422A (en) * | 2020-05-15 | 2020-08-18 | 杭州余杭特种风机有限公司 | Fan shell is installed soon to multi-angle |
| CN111980966A (en) * | 2019-05-24 | 2020-11-24 | 宏碁股份有限公司 | Centrifugal heat radiation fan |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5792228A (en) * | 1995-12-02 | 1998-08-11 | Firma Carl Fruedenberg | Accordion filter pack that is bendable in only one direction |
| JP2009066481A (en) * | 2007-09-11 | 2009-04-02 | Nikuni:Kk | Pump apparatus |
| CN103850987A (en) * | 2014-02-19 | 2014-06-11 | 江苏常净环保科技有限公司 | Fan muffler for dust remover |
| CN203856778U (en) * | 2014-06-05 | 2014-10-01 | 上海显隆通风设备有限公司 | Check valve for air conditioner fan outlet |
| US20160238024A1 (en) * | 2015-02-13 | 2016-08-18 | Dyson Technology Limited | Fan |
| CN205503509U (en) * | 2016-03-08 | 2016-08-24 | 苏州顶裕节能设备有限公司 | Fan that can amortization |
| CN205503508U (en) * | 2016-03-08 | 2016-08-24 | 苏州顶裕节能设备有限公司 | Fan that can air -purifying |
| CN207406546U (en) * | 2017-11-08 | 2018-05-25 | 金美玉 | Efficient fan muffler |
| CN208417001U (en) * | 2018-06-01 | 2019-01-22 | 威海克莱特菲尔风机股份有限公司 | Low noise explosion-proof fan |
-
2018
- 2018-06-01 CN CN201810557551.6A patent/CN108591098B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5792228A (en) * | 1995-12-02 | 1998-08-11 | Firma Carl Fruedenberg | Accordion filter pack that is bendable in only one direction |
| JP2009066481A (en) * | 2007-09-11 | 2009-04-02 | Nikuni:Kk | Pump apparatus |
| CN103850987A (en) * | 2014-02-19 | 2014-06-11 | 江苏常净环保科技有限公司 | Fan muffler for dust remover |
| CN203856778U (en) * | 2014-06-05 | 2014-10-01 | 上海显隆通风设备有限公司 | Check valve for air conditioner fan outlet |
| US20160238024A1 (en) * | 2015-02-13 | 2016-08-18 | Dyson Technology Limited | Fan |
| CN205503509U (en) * | 2016-03-08 | 2016-08-24 | 苏州顶裕节能设备有限公司 | Fan that can amortization |
| CN205503508U (en) * | 2016-03-08 | 2016-08-24 | 苏州顶裕节能设备有限公司 | Fan that can air -purifying |
| CN207406546U (en) * | 2017-11-08 | 2018-05-25 | 金美玉 | Efficient fan muffler |
| CN208417001U (en) * | 2018-06-01 | 2019-01-22 | 威海克莱特菲尔风机股份有限公司 | Low noise explosion-proof fan |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737080A (en) * | 2019-02-19 | 2019-05-10 | 苏州众志新环冷却设备有限公司 | A kind of Air Exhaust Heat Dissipating Double-fuselage |
| CN111980966A (en) * | 2019-05-24 | 2020-11-24 | 宏碁股份有限公司 | Centrifugal heat radiation fan |
| CN111980966B (en) * | 2019-05-24 | 2022-10-21 | 宏碁股份有限公司 | Centrifugal heat radiation fan |
| CN111550422A (en) * | 2020-05-15 | 2020-08-18 | 杭州余杭特种风机有限公司 | Fan shell is installed soon to multi-angle |
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|---|---|
| CN108591098B (en) | 2024-02-20 |
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Denomination of invention: Low noise explosion-proof fan Granted publication date: 20240220 Pledgee: Bank of China Limited Weihai Branch Pledgor: WEIHAI CREDITFAN VENTILATOR Co.,Ltd. Registration number: Y2024980008176 |