CN110410348A - A kind of low pressure centrifugal fan - Google Patents
A kind of low pressure centrifugal fan Download PDFInfo
- Publication number
- CN110410348A CN110410348A CN201910769109.4A CN201910769109A CN110410348A CN 110410348 A CN110410348 A CN 110410348A CN 201910769109 A CN201910769109 A CN 201910769109A CN 110410348 A CN110410348 A CN 110410348A
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- China
- Prior art keywords
- centrifugal fan
- rotation axis
- connect
- ventilator housing
- housing
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
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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
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
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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
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/626—Mounting or removal of fans
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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
- 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
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
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 fan technical fields, and disclose a kind of low pressure centrifugal fan, including centrifugal fan pedestal, the upper end face side of the centrifugal fan pedestal is provided with ventilator housing, the upper end face of the ventilator housing is provided with outlet, the lower front surface of the ventilator housing is provided with movable plate, the upper end face other side of the centrifugal fan pedestal is provided with connection pedestal, motor housing is arranged in the upper end face of the connection pedestal, the side surface middle part of the ventilator housing is provided with No.1 rotation axis, the outer surface of the No.1 rotation axis is provided with support ring close to the side of ventilator housing, the rear surface of the support ring is provided with support plate.The low pressure centrifugal fan can be improved the stability of device work, can conveniently be safeguarded, guarantee safety when device work, and then guarantee that the wind of device blowout can purify air.
Description
Technical field
The present invention relates to centrifugal fan technical field, specially a kind of low pressure centrifugal fan.
Background technique
Blower is a kind of for compressing and conveying the machinery of gas, and from the point of view of energy viewpoint, it is the machinery prime mover
Energy conversion is a kind of machinery of gas energy.
Centrifugal fan is to improve gas pressure by the mechanical energy of input and supply gas side by side the machinery of body, it be it is a kind of from
Dynamic fluid machinery, centrifugal blower are widely used in the ventilation of factory, mine, tunnel, cooling tower, vehicle, ship and building, row
Dirt and cooling；The ventilation of boiler and industrial furnace and air inducing；Cooling and ventilation in the apparatus of air conditioning and domestic electric appliance；
It the drying of cereal and selects and recommends；Inflation and propulsion of wind-tunnel wind regime and aircushion vehicle etc..
There are some drawbacks in a kind of existing low pressure centrifugal fan, in use, device power connects when in use
Connect place work when it is unstable, stability when device being caused to work is not high, and device can not be dismantled, cause staff maintenance not
Easily, unobstructed at device transmission, safety when device being caused to work is too low, and the wind of device blowout can not be purified, and causes
The wind of device blowout can not make row air cleaning, thus it is proposed that a kind of low pressure centrifugal fan.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of low pressure centrifugal fans, have centrifugal fan work
When stability it is high, the advantages that staff is easy to maintain, highly-safe when work, and the wind of blowout can make air cleaning, solution
Conventional low of having determined centrifugal fan is connected by power unstable when place's work, can not dismantle, unobstructed at transmission, the wind of blowout without
Method is purified, and stability when will lead to low pressure centrifugal fan work is not high, and staff's maintenance is not easy, peace when work
The problem of full property is too low, and the wind of blowout can not make air cleaning.
(2) technical solution
Stability is high when to realize the work of above-mentioned centrifugal fan, and staff is easy to maintain, highly-safe when work,
The wind of blowout can make the purpose of air cleaning, the invention provides the following technical scheme: a kind of low pressure centrifugal fan, including from
Heart ventilation machine base, the upper end face side of the centrifugal fan pedestal is provided with ventilator housing, the ventilator housing
Upper end face be provided with outlet, the lower front surface of the ventilator housing is provided with movable plate, the centrifugal fan
The upper end face other side of pedestal is provided with connection pedestal, and motor housing, the ventilation is arranged in the upper end face of the connection pedestal
The side surface middle part of machine shell is provided with No.1 rotation axis, and the outer surface of the No.1 rotation axis is close to the one of ventilator housing
Side is provided with support ring, and the rear surface of the support ring is provided with support plate, and the rear surface of the support plate is provided with company
The outer surface of fishplate bar, the No.1 rotation axis is provided with feed belt close to a side surface of support ring, the feed belt
Lower end interior surface is provided with No. two rotation axis, and a side surface of the motor housing is provided with screening close to the side of No. two rotation axis
The interior surface of baffle, the ventilator housing is provided with No.1 filtering area close to the inside middle part surface of outlet, described logical
The inside of blower housing is provided with centrifugal fan main body close to another side surface of No. two rotation axis, the ventilator housing
Interior side surface is provided with No. two filtering areas.
Preferably, the surface of the connecting plate is provided through hex(agonal)screw, and the rear surface of the connecting plate passes through six
Angle screw is connect with the upper end face of centrifugal fan pedestal, the upper end face of the centrifugal fan pedestal by connecting plate with
The rear surface of support plate connects, and a side surface of the support plate is connected by a side surface of connecting plate and ventilator housing
It connects, a side surface of the connecting plate is connected by a side surface of hex(agonal)screw and ventilator housing, the ventilator housing
Rear surface connect with one side surface of upper end of centrifugal fan pedestal by connecting plate, the quantity of the hex(agonal)screw is two
Group, the hex(agonal)screw are in symmetry arrangement.
Preferably, the inside of the movable plate includes hinge, and stress handle, the hinge are provided with below the hinge
Outer surface be flexibly connected with the preceding interior surface of ventilator housing by movable plate, the rear surface of the stress handle passes through
Movable plate is flexibly connected with the front surface of ventilator housing.
Preferably, the rear surface of the shutter is provided through connecting screw, and the rear surface of the shutter is logical
It crosses connecting screw to connect with the upper end face of centrifugal fan pedestal, a side surface of the shutter passes through centrifugal fan bottom
Seat is connect with a side surface of motor housing, and the rear surface of the motor housing passes through the upper end of shutter and centrifugal fan pedestal
Surface connection, the quantity of the connecting screw are two groups, and the connecting screw is in symmetry arrangement.
Preferably, the inside of No. two filtering areas includes No.1 filter layer, and the rear surface of the No.1 filter layer is set
It is equipped with active carbon layer, the rear surface of the active carbon layer is provided with No. two filter layers, the interior surface of No. two filtering areas
Connected by the outer surface of No.1 filter layer and active carbon layer, the outer surface surfaces of No. two filter layers by active carbon layer with
The interior surface connection of No. two filtering areas, the rear surface of the No.1 filter layer are upper by active carbon layer and No. two filter layers
The outer surface of end surfaces connection, the No.1 filter layer is connected by the interior surface of No. two filtering areas and ventilator housing, institute
The outer surface surface for stating No. two filter layers is connected by the interior surface of No. two filtering areas and ventilator housing.
Preferably, the support ring is internally provided with turning collar, and the outer surface of the No.1 rotation axis passes through turning collar
It is flexibly connected with the interior surface of support ring, a side surface of the support ring passes through the side table of turning collar and ventilator housing
The interior surface of face connection, the turning collar is flexibly connected by ventilator housing with the outer surface of No.1 rotation axis, and described turn
The rear surface of moving-coil is connected by the upper end face of support ring and support plate.
Preferably, a side surface of No.1 rotation axis is connected by a side surface of ventilator housing and centrifugal fan main body
It connects, the outer surface of the centrifugal fan main body is connected by No.1 rotation axis and the interior surface of ventilator housing.
Preferably, the outer surface of No. two rotation axis is flexibly connected by motor housing with the rear surface of shutter, institute
The side surface for stating motor housing is connected by the side surface activity of No. two rotation axis and feed belt.
Preferably, the both side surface of the No.1 filtering area is connected by the interior surface of outlet and ventilator housing,
The interior surface of the outlet is connect by ventilator housing with the both side surface of No.1 filtering area.
Beneficial effect
Compared with prior art, the present invention provides a kind of low pressure centrifugal fan, have it is following the utility model has the advantages that
1, the low pressure centrifugal fan is supported No.1 rotation axis by the turning collar of setting, makes No.1 rotation axis
It is more stable when being worked, it is not in that the turning collar for shaking, and being arranged can follow one by the support of support ring
The rotation work of number rotation axis is rotated, and the support ring being arranged is that company is fixed by the support plate and connecting plate of setting
It connects, and the connecting plate being arranged is the upper end for being fixedly connected on centrifugal fan pedestal by hex(agonal)screw, guarantees that device is dynamic
Stablize when power junction works, and then guarantees that device stability when work is got higher.
2, the low pressure centrifugal fan is opened by the movable plate that will be arranged, and can make staff convenient to ventilation blower
The inside of shell carries out maintenance work, and the opening for the movable plate being arranged be driven by the rotation of the hinge of setting movable plate into
Row rotation, and the rotation for the hinge being arranged is to carry out rotation work by the stress of stress handle, guarantees that device can be square
Just it safeguards, and then guarantees that staff can facilitate and device inside is safeguarded.
3, the low pressure centrifugal fan, can be by No.1 rotation axis, feed belt and two by the shutter by setting
The working region of number rotation axis is blocked, and the safety of staff is improved, and the shutter being arranged is by setting
What the connecting screw and centrifugal fan base rotation upper end set were fixedly connected, and No. two rotation axis being arranged extend through
Shutter carries out rotation work, guarantees to block at the transmission to device, and then guarantees safety when device work
It improves.
4, low pressure centrifugal fan, by that can be made inside device by the No.1 filtering area and No. two filtering areas of setting
The wind of blowout is purified, and making the inside of No. two filtering areas for assimilate, and being arranged of the air of surrounding slowly is by setting
What No.1 filter layer, active carbon layer and No. two filter layers set purified air, blow the inside of device ventilator housing
Air out is more pure and fresh, guarantees that the wind of device blowout is cleaned, and then guarantees that the wind of device blowout can purify week
The air enclosed.
Detailed description of the invention
Fig. 1 is structure of the invention front schematic view；
Fig. 2 is enlarged diagram at the A of structure of the invention Fig. 1；
Fig. 3 is the schematic diagram of the component activity plate of structure of the invention；
Fig. 4 is the partial sectional view of structure of the invention；
Fig. 5 is the structural schematic diagram of the component support ring of structure of the invention；
Fig. 6 is the structural schematic diagram of the component shutter of structure of the invention；
Fig. 7 is the structural schematic diagram of No. two filtering areas of component of structure of the invention.
In figure: 1, centrifugal fan pedestal；2, ventilator housing；3, outlet；4, movable plate；41, hinge；42, stress
Handle；5, No.1 rotation axis；6, support ring；7, support plate；8, connecting plate；9, hex(agonal)screw；10, feed belt；11, No. two turn
Moving axis；12, motor housing；13, shutter；14, connecting screw；15, pedestal is connected；16, No.1 filtering area；17, centrifugal fan
Main body；18, No. two filtering areas；181, No.1 filter layer；182, active carbon layer；183, No. two filter layers；19, turning collar.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-7, a kind of low pressure centrifugal fan, including centrifugal fan pedestal 1 are please referred to, centrifugal fan pedestal 1
Upper end face side is provided with ventilator housing 2, and the upper end face of ventilator housing 2 is provided with outlet 3, ventilator housing 2
Lower front surface be provided with movable plate 4, the upper end face other side of centrifugal fan pedestal 1 is provided with connection pedestal 15, even
The upper end face setting motor housing 12 of pedestal 15 is connect, the side surface middle part of ventilator housing 2 is provided with No.1 rotation axis 5, and one
The outer surface of number rotation axis 5 is provided with support ring 6 close to the side of ventilator housing 2, and the rear surface of support ring 6 is provided with branch
Fagging 7, the rear surface of support plate 7 are provided with connecting plate 8, and the outer surface of No.1 rotation axis 5 is close to a side surface of support ring 6
It is provided with feed belt 10, the lower end interior surface of feed belt 10 is provided with No. two rotation axis 11, the side table of motor housing 12
Face is provided with shutter 13 close to the side of No. two rotation axis 11, and the interior surface of ventilator housing 2 is close to the inside of outlet 3
Middle part surface is provided with No.1 filtering area 16, and the inside of ventilator housing 2 is arranged close to another side surface of No. two rotation axis 11
There is centrifugal fan main body 17, the interior side surface of ventilator housing 2 is provided with No. two filtering areas 18.
The surface of connecting plate 8 is provided through hex(agonal)screw 9, and the rear surface of connecting plate 8 passes through hex(agonal)screw 9 and centrifugation
The upper end face connection of ventilation machine base 1, the upper end face of centrifugal fan pedestal 1 pass through the lower end of connecting plate 8 and support plate 7
One side surface of surface connection, support plate 7 is connect by connecting plate 8 with a side surface of ventilator housing 2, and the one of connecting plate 8
Side surface is connect by hex(agonal)screw 9 with a side surface of ventilator housing 2, and the rear surface of ventilator housing 2 passes through connection
Plate 8 is connect with one side surface of upper end of centrifugal fan pedestal 1, and the quantity of hex(agonal)screw 9 is two groups, and hex(agonal)screw 9 is in symmetrical
Arrangement；The inside of movable plate 4 includes hinge 41, and the lower section of hinge 41 is provided with stress handle 42, and the outer surface of hinge 41 passes through
Movable plate 4 is flexibly connected with the preceding interior surface of ventilator housing 2, and the rear surface of stress handle 42 by movable plate 4 and leads to
The front surface of blower housing 2 is flexibly connected；The rear surface of shutter 13 is provided through connecting screw 14, under shutter 13
End surfaces are connect by connecting screw 14 with the upper end face of centrifugal fan pedestal 1, a side surface of shutter 13 by from
Heart ventilation machine base 1 is connect with a side surface of motor housing 12, and the rear surface of motor housing 12 is logical by shutter 13 and centrifugation
The upper end face of base plate 1 connects, and the quantity of connecting screw 14 is two groups, and connecting screw 14 is in symmetry arrangement；No. two filterings
The inside in area 18 includes No.1 filter layer 181, and the rear surface of No.1 filter layer 181 is provided with active carbon layer 182, active carbon layer
182 rear surface is provided with No. two filter layers 183, and the interior surface of No. two filtering areas 18 by No.1 filter layer 181 and is lived
Property layer of charcoal 182 outer surface connection, the outer surface surfaces of No. two filter layers 183 passes through active carbon layer 182 and No. two filtering areas 18
Interior surface connection, the rear surface of No.1 filter layer 181 passes through the upper end table of active carbon layer 182 and No. two filter layers 183
The outer surface of face connection, No.1 filter layer 181 is connect by No. two filtering areas 18 with the interior surface of ventilator housing 2, and No. two
The outer surface surface of filter layer 183 is connect by No. two filtering areas 18 with the interior surface of ventilator housing 2；Support ring 6 it is interior
Portion is provided with turning collar 19, and the outer surface of No.1 rotation axis 5 is flexibly connected by turning collar 19 with the interior surface of support ring 6,
One side surface of support ring 6 is connect by turning collar 19 with a side surface of ventilator housing 2, and the interior surface of turning collar 19 is logical
It crosses ventilator housing 2 to be flexibly connected with the outer surface of No.1 rotation axis 5, the rear surface of turning collar 19 passes through support ring 6 and branch
The upper end face of fagging 7 connects；One side surface of No.1 rotation axis 5 passes through ventilator housing 2 and centrifugal fan main body 17
The outer surface of the connection of one side surface, centrifugal fan main body 17 is connected by No.1 rotation axis 5 and the interior surface of ventilator housing 2
It connects；The outer surface of No. two rotation axis 11 is flexibly connected by motor housing 12 with the rear surface of shutter 13, and the one of motor housing 12
Side surface is connect by No. two rotation axis 11 with the side surface activity of feed belt 10；The both side surface of No.1 filtering area 16 is logical
It crosses outlet 3 to connect with the interior surface of ventilator housing 2, the interior surface of outlet 3 passes through ventilator housing 2 and No.1 mistake
Filter the both side surface connection in area 16.
To sum up, whole device can be made smoothly to contact with ground by the centrifugal fan pedestal 1 of setting, and be arranged
Motor housing 12 is able to drive No. two rotation axis 11 when being worked and is rotated, and be arranged No. two rotation axis 11 grab you
Be able to drive feed belt 10 and No.1 rotation axis 5 and carry out rotation work, and the rotation work of No.1 rotation axis 5 be capable of band from
Heart ventilation blower main body 17 is rotated, and so that centrifugal fan main body 17 is generated outlet air in rotation, is then passed through the No.1 of setting
Filtering area 16 is discharged with No. two filtering areas 18, and the motor housing 12 being arranged is logical by the connection pedestal 15 of setting and centrifugation
What the upper end of base plate 1 was fixedly connected, while the shutter 13 being arranged can be to No.1 rotation axis 5, feed belt 10
It is blocked with the working region of No. two rotation axis 11, improves safety when device work, and the shutter 13 being arranged is logical
Cross what the upper end of connecting screw 14 and centrifugal fan pedestal 1 was fixedly connected, and the No.1 rotation axis 5 being arranged is in rotation
It is able to drive turning collar 19 to be rotated, and the turning collar 19 being arranged is rotated by the support of support ring 6, and the branch being arranged
Pushing out ring 6 be the connecting plate 8 and centrifugal fan pedestal 1 that are fixedly connected by support plate 7 and connecting plate 8, and be arranged it
Between to be fixedly connected be to be supported by hex(agonal)screw 9, while the filtration of No. two filtering areas 18 is by No.1 mistake
Filtering layer 181, active carbon layer 182 and No. two filter layers 183 be supported it is fixed, enable No. two filtering areas 18 to ventilation blower outside
The inner air of shell 2 is purified, and the movable plate 4 being arranged can facilitate staff to carry out maintenance work, while being arranged
Movable plate 4 can be such that hinge 41 is rotated by 42 stress of stress handle, drive movable plate 4 to carry out rotation work, solve
The problem of device maintenance is not easy.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of low pressure centrifugal fan, including centrifugal fan pedestal (1), it is characterised in that: the centrifugal fan pedestal
(1) upper end face side is provided with ventilator housing (2), and the upper end face of the ventilator housing (2) is provided with outlet
(3), the lower front surface of the ventilator housing (2) is provided with movable plate (4), the upper end of the centrifugal fan pedestal (1)
The surface other side is provided with connection pedestal (15), and motor housing (12) are arranged in the upper end face of connection pedestal (15), described logical
The side surface middle part of blower housing (2) is provided with No.1 rotation axis (5), and the outer surface of the No.1 rotation axis (5) is close to logical
The side of blower housing (2) is provided with support ring (6), and the rear surface of the support ring (6) is provided with support plate (7), described
The rear surface of support plate (7) is provided with connecting plate (8), and the outer surface of the No.1 rotation axis (5) is close to the one of support ring (6)
Side surface is provided with feed belt (10), and the lower end interior surface of the feed belt (10) is provided with No. two rotation axis (11),
One side surface of the motor housing (12) is provided with shutter (13) close to the side of No. two rotation axis (11), outside the ventilation blower
The interior surface of shell (2) is provided with No.1 filtering area (16), the ventilator housing close to the inside middle part surface of outlet (3)
(2) inside is provided with centrifugal fan main body (17) close to another side surface of No. two rotation axis (11), outside the ventilation blower
The interior side surface of shell (2) is provided with No. two filtering areas (18).
2. a kind of low pressure centrifugal fan according to claim 1, it is characterised in that: the surface of the connecting plate (8) is passed through
It wears and is equipped with hex(agonal)screw (9), the rear surface of the connecting plate (8) passes through hex(agonal)screw (9) and centrifugal fan pedestal (1)
Upper end face connection, the upper end face of the centrifugal fan pedestal (1) passes through the lower end of connecting plate (8) and support plate (7)
One side surface of surface connection, the support plate (7) is connect by connecting plate (8) with a side surface of ventilator housing (2), institute
The side surface for stating connecting plate (8) is connect by hex(agonal)screw (9) with a side surface of ventilator housing (2), the ventilation blower
The rear surface of shell (2) is connect by connecting plate (8) with one side surface of upper end of centrifugal fan pedestal (1), the hexagonal
The quantity of screw (9) is two groups, and the hex(agonal)screw (9) is in symmetry arrangement.
3. a kind of low pressure centrifugal fan according to claim 1, it is characterised in that: wrap the inside of the movable plate (4)
It includes hinge (41), is provided with stress handle (42) below the hinge (41), the outer surface of the hinge (41) passes through activity
Plate (4) is flexibly connected with the preceding interior surface of ventilator housing (2), and the rear surface of the stress handle (42) passes through movable plate
(4) it is flexibly connected with the front surface of ventilator housing (2).
4. a kind of low pressure centrifugal fan according to claim 1, it is characterised in that: the lower end table of the shutter (13)
Face is provided through connecting screw (14), and the rear surface of the shutter (13) passes through connecting screw (14) and centrifugal fan
The upper end face of pedestal (1) connects, and a side surface of the shutter (13) passes through centrifugal fan pedestal (1) and motor housing
(12) side surface connection, the rear surface of the motor housing (12) pass through shutter (13) and centrifugal fan pedestal (1)
Upper end face connection, the quantity of the connecting screw (14) is two groups, and the connecting screw (14) is in symmetry arrangement.
5. a kind of low pressure centrifugal fan according to claim 1, it is characterised in that: No. two filtering areas (18) it is interior
Portion includes No.1 filter layer (181), and the rear surface of the No.1 filter layer (181) is provided with active carbon layer (182), the work
Property layer of charcoal (182) rear surface be provided with No. two filter layers (183), the interior surface of No. two filtering areas (18) passes through one
Number filter layer (181) is connect with the outer surface of active carbon layer (182), and the outer surface surface of No. two filter layers (183) passes through
Active carbon layer (182) is connect with the interior surface of No. two filtering areas (18), and the rear surface of the No.1 filter layer (181) passes through
Active carbon layer (182) is connect with the upper end face of No. two filter layers (183), and the outer surface of the No.1 filter layer (181) passes through
No. two filtering areas (18) connect with the interior surface of ventilator housing (2), and the outer surface surface of No. two filter layers (183) is logical
No. two filtering areas (18) are crossed to connect with the interior surface of ventilator housing (2).
6. a kind of low pressure centrifugal fan according to claim 1, it is characterised in that: the inside of the support ring (6) is set
It is equipped with turning collar (19), the outer surface of the No.1 rotation axis (5) is living by the interior surface of turning collar (19) and support ring (6)
One side surface of dynamic connection, the support ring (6) is connect by turning collar (19) with a side surface of ventilator housing (2), institute
The interior surface for stating turning collar (19) is flexibly connected by ventilator housing (2) with the outer surface of No.1 rotation axis (5), and described turn
The rear surface of moving-coil (19) is connect by support ring (6) with the upper end face of support plate (7).
7. a kind of low pressure centrifugal fan according to claim 1, it is characterised in that: the side table of No.1 rotation axis (5)
Face is connect by ventilator housing (2) with a side surface of centrifugal fan main body (17), the centrifugal fan main body (17)
Outer surface connect with the interior surface of ventilator housing (2) by No.1 rotation axis (5).
8. a kind of low pressure centrifugal fan according to claim 1, it is characterised in that: outside No. two rotation axis (11)
Surface is flexibly connected by motor housing (12) with the rear surface of shutter (13), and a side surface of the motor housing (12) passes through
No. two rotation axis (11) connect with the side surface activity of feed belt (10).
9. a kind of low pressure centrifugal fan according to claim 1, it is characterised in that: the two of the No.1 filtering area (16)
Side surface is connect by outlet (3) with the interior surface of ventilator housing (2), and the interior surface of the outlet (3) passes through
Ventilator housing (2) is connect with the both side surface of No.1 filtering area (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910769109.4A CN110410348A (en) | 2019-08-20 | 2019-08-20 | A kind of low pressure centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910769109.4A CN110410348A (en) | 2019-08-20 | 2019-08-20 | A kind of low pressure centrifugal fan |
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| Publication Number | Publication Date |
|---|---|
| CN110410348A true CN110410348A (en) | 2019-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910769109.4A Pending CN110410348A (en) | 2019-08-20 | 2019-08-20 | A kind of low pressure centrifugal fan |
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| Country | Link |
|---|---|
| CN (1) | CN110410348A (en) |
Citations (7)
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| DE2401517A1 (en) * | 1974-01-14 | 1975-07-24 | Wilhelm Gebhardt | Centrifugal fan unit with external drive - by alternating current motor continuously speed-variable through voltage variation |
| CN204512001U (en) * | 2014-12-30 | 2015-07-29 | 凯天环保科技股份有限公司 | A kind of blower fan sound-insulating cover |
| CN107191391A (en) * | 2017-07-28 | 2017-09-22 | 海安雨灵机械科技有限公司 | A kind of denoising draught fan |
| CN109302950A (en) * | 2018-11-29 | 2019-02-05 | 盐城爱菲尔菌菇装备科技股份有限公司 | A kind of edible mushroom factory ventilation equipment |
| CN208595087U (en) * | 2018-06-21 | 2019-03-12 | 王杭 | A kind of blower that electromechanical engineering class is easy to remove |
| CN209115407U (en) * | 2018-12-01 | 2019-07-16 | 佛山市龙勤光源机电设备有限公司 | A kind of noise reducing type cabinet centrifugal smoke exhaust fan |
| CN209164121U (en) * | 2018-09-14 | 2019-07-26 | 皇家动力(武汉)有限公司 | A kind of double air inlet one's intention as revealed in what one says body circulation formula blowers |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2401517A1 (en) * | 1974-01-14 | 1975-07-24 | Wilhelm Gebhardt | Centrifugal fan unit with external drive - by alternating current motor continuously speed-variable through voltage variation |
| CN204512001U (en) * | 2014-12-30 | 2015-07-29 | 凯天环保科技股份有限公司 | A kind of blower fan sound-insulating cover |
| CN107191391A (en) * | 2017-07-28 | 2017-09-22 | 海安雨灵机械科技有限公司 | A kind of denoising draught fan |
| CN208595087U (en) * | 2018-06-21 | 2019-03-12 | 王杭 | A kind of blower that electromechanical engineering class is easy to remove |
| CN209164121U (en) * | 2018-09-14 | 2019-07-26 | 皇家动力(武汉)有限公司 | A kind of double air inlet one's intention as revealed in what one says body circulation formula blowers |
| CN109302950A (en) * | 2018-11-29 | 2019-02-05 | 盐城爱菲尔菌菇装备科技股份有限公司 | A kind of edible mushroom factory ventilation equipment |
| CN209115407U (en) * | 2018-12-01 | 2019-07-16 | 佛山市龙勤光源机电设备有限公司 | A kind of noise reducing type cabinet centrifugal smoke exhaust fan |
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Application publication date: 20191105 |