CN109763987A - A kind of centrifugal blower - Google Patents
A kind of centrifugal blower Download PDFInfo
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- CN109763987A CN109763987A CN201910184700.3A CN201910184700A CN109763987A CN 109763987 A CN109763987 A CN 109763987A CN 201910184700 A CN201910184700 A CN 201910184700A CN 109763987 A CN109763987 A CN 109763987A
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- 238000005192 partition Methods 0.000 claims abstract description 72
- 238000010586 diagram Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005119 centrifugation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The invention discloses a kind of centrifugal blowers, belong to centrifugal blower technical field.Rotary air centrifugal force generating device, rotary air centrifugal force generating device includes helical duct left side wall panel, helical duct right side wall panel and one group of helical duct partition wall, helical duct left side wall panel is annular slab, the interior circular hole of annular slab is corresponding with the air inlet of spiral case, helical duct right side wall panel is circular slab, one group of helical duct partition wall is arc panel, helical duct left side wall panel and helical duct right side wall panel or so are opposed, helical duct partition wall is listed between helical duct left side wall panel and helical duct right side wall panel in the shape of a spiral using the interior circular hole of left side wall panel as center hole, the left end of each helical duct partition wall is fixedly connected with helical duct left side wall panel, the right end of each helical duct partition wall is fixedly connected with helical duct right side wall panel, it is formed with the concentric circular row of spiral case in the spiral of the air inlet periphery of spiral case Centrifugal channel.It has the characteristics that structurally reasonable, high-efficient.
Description
Technical field
The present invention relates to centrifugal blower technical fields.
Background technique
Centrifugal blower is widely used in a kind of common apparatus of the industries such as industry, agricultural, belongs to a kind of high-energy equipment.With
Industry rapid development, quantity required and quality to blower increasingly improve.It is existing for existing blower, it is most of
For prismatic blade blower, structure is simple, and efficiency is lower, causes energy dissipation big, influences the service life of motor and blower.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of centrifugal blowers, it has the characteristics that structurally reasonable, high-efficient.
In order to solve the above technical problems, the technical solution used in the present invention is:
A kind of centrifugal blower, including driving motor, spiral case and the air inlet being arranged on the left of spiral case and the circle along spiral case
The air-out passage of shape shell tangential direction setting, is equipped with rotary air centrifugal force generating device in spiral case, and driving motor drives
Dynamic rotary air centrifugal force generating device rotation sucks air inlet side air so that the air in spiral case generates centrifugal force
Air-out passage, rotary air centrifugal force generating device include helical duct left side wall panel, helical duct right side wall panel and one group
Helical duct partition wall, helical duct left side wall panel are annular slab, and the interior circular hole of annular slab is corresponding with the air inlet of spiral case, spiral shell
Rotation channel right side wall panel is circular slab, and one group of helical duct partition wall is arc panel, and helical duct left side wall panel and spiral are logical
Road right side wall panel or so is opposed, and helical duct partition wall is listed in spiral as center hole using the interior circular hole of left side wall panel in the shape of a spiral
Between channel left side wall panel and helical duct right side wall panel, the left end of each helical duct partition wall and helical duct left side wall panel are solid
Fixed connection, the right end of each helical duct partition wall are fixedly connected with helical duct right side wall panel, are formed and the concentric circular row of spiral case
Spiral centrifugal channel in the air inlet periphery of spiral case, it is identical that the hand of spiral of spiral centrifugal channel rotates direction.
The present invention further improvement lies in that:
The wooden partition of each helical duct partition wall and helical duct left side wall panel and helical duct right side wall panel are perpendicular, and with
The axial line of spiral case is parallel.
A kind of centrifugal blower, including driving motor, spiral case and the air inlet being arranged on the left of spiral case and the circle along spiral case
The air-out passage of shape shell tangential direction setting, is equipped with rotary air centrifugal force generating device in spiral case, and driving motor drives
Dynamic rotary air centrifugal force generating device rotation sucks air inlet side air so that the air in spiral case generates centrifugal force
Air-out passage, rotary air centrifugal force generating device include helical duct left side wall panel and one group of helical duct partition wall, spiral shell
Rotation channel left side wall panel is annular slab, and the interior circular hole of annular slab is corresponding with the air inlet of spiral case, one group of helical duct partition wall
It is arc panel, helical duct partition wall is listed in the shape of a spiral on the left of helical duct using the interior circular hole of left side wall panel as center hole
On siding, the left end of each helical duct partition wall is fixedly connected with helical duct left side wall panel, helical duct left side wall panel, each spiral shell
Revolve corridor bulkhead plate and spiral case right side inner wall formed with the concentric circular row of spiral case in the air inlet periphery of spiral case it is spiral from
Heart channel, it is identical that the hand of spiral of spiral centrifugal channel rotates direction.
The present invention further improvement lies in that:
The wooden partition and helical duct left side wall panel of each helical duct partition wall are perpendicular and equal with the axial line of spiral case
Row.
The right end of each helical duct partition wall and the right side inner wall spacing of spiral case are not more than 2cm.
A kind of centrifugal blower, including driving motor, spiral case and the air inlet being arranged on the left of spiral case and circle along spiral case 1
The air-out passage of shape shell tangential direction setting, is equipped with rotary air centrifugal force generating device in spiral case, and driving motor drives
Dynamic rotary air centrifugal force generating device rotation sucks air inlet side air so that the air in spiral case generates centrifugal force
Air-out passage, rotary air centrifugal force generating device include helical duct right side wall panel and one group of helical duct partition wall, spiral shell
Rotation channel right side wall panel is circular slab, one group of helical duct partition wall is arc panel, helical duct partition wall with spiral case into
Air port is that center hole is listed in helical duct right side wall panel in the shape of a spiral, the right end and helical duct of each helical duct partition wall
Right side wall panel is fixedly connected, and the inner left wall of each helical duct partition wall, helical duct right side wall panel and spiral case is formed and spiral case
Concentric circular row is rotated in the spiral centrifugal channel on the air inlet periphery of spiral case, the hand of spiral of spiral centrifugal channel
Direction is identical.
The present invention further improvement lies in that:
The wooden partition and helical duct right side wall panel of each helical duct partition wall are perpendicular and equal with the axial line of spiral case
Row.
The left end of each helical duct partition wall and the inner left wall spacing of spiral case are not more than 2cm.
The beneficial effects of adopting the technical scheme are that
The present invention is fixedly connected by the left end of each helical duct partition wall with helical duct left side wall panel, each helical duct
The right end of partition wall is fixedly connected with helical duct right side wall panel, is formed with the concentric circular row of spiral case in the air inlet periphery of spiral case
Spiral centrifugal channel；Or the right side inner wall of helical duct left side wall panel, each helical duct partition wall and spiral case is formed and snail
The concentric circular row of shell is in the spiral centrifugal channel or each helical duct partition wall, helical duct on the air inlet periphery of spiral case
The spiral centrifugation that right side wall panel and the inner left wall of spiral case are formed with the concentric circular row of spiral case in the air inlet periphery of spiral case is logical
Road, the spiral centrifugal channel have the advantages that 1. production compared with the used prismatic blade of existing centrifugal blower
Technique is unique, under big flow state, there is certain protective effect to the equipment safety of ventilation blower, improve helical duct every
The mechanical performance of siding.2. revolving spiral centrifugal channel air inlet part with it since helical duct partition wall is arc panel
(circle) rotation wind direction approximation generated when turning is tangent, to make wind passive turning angle when entering spiral centrifugal channel
It is small, it can be reduced the energy loss of blower, keep air flow losses and volumetric loss smaller.3. using spiral centrifugal channel air
Accelerate in channel, by circular arc type partition wall, accelerate more smooth, be conducive to increase the wind pressure in channel, enhancing air from
Heart effect reduces the noise formed when the vortex in centrifugal channel and vortex disengaging, due to the structure of spiral centrifugal channel
It determines that the length in its channel is longer, it is more significant to generate air centrifugal action, so that working efficiency is improved, it is energy saving.
Detailed description of the invention
Fig. 1 is external structure schematic diagram of the invention；
Fig. 2 is the right view of Fig. 1；
Fig. 3 is the structural schematic diagram of rotary air centrifugal force generating device in the embodiment of the present invention 1；
Fig. 4 is the structural schematic diagram of rotary air centrifugal force generating device in the embodiment of the present invention 2；
Fig. 5 is the structural schematic diagram of rotary air centrifugal force generating device in the embodiment of the present invention 3；
In the accompanying drawings: 1. spiral cases；2. driving motor；3. helical duct left side wall panel；4. helical duct right side wall panel；5. spiral shell
Revolve corridor bulkhead plate；6. air inlet；7. air-out passage；8. bearing block；9. transmission shaft.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be described in further detail.
Embodiment 1
Shown in referring to figure 1, figure 2 and figure 3, a kind of centrifugal blower, including driving motor 2, spiral case 1 and setting are in spiral case 1
The air-out passage 7 of the air inlet 6 in left side and the circular shell tangential direction setting along spiral case 1 is equipped with rotary empty in spiral case 1
Gas centrifugal force generating device, driving motor 2 drives the rotation of rotary air centrifugal force generating device, so that the air in spiral case 1
Centrifugal force is generated, 6 side air of air inlet is sucked into air-out passage 7, rotary air centrifugal force generating device includes helical duct
Left side wall panel 3, helical duct right side wall panel 4 and one group of 5 helical duct left side wall panel 3 of helical duct partition wall are annular slab, ring
The interior circular hole of shape plate and the air inlet 6 of spiral case 1 are corresponding, and helical duct right side wall panel 4 is circular slab, one group of helical duct next door
Plate 5 is arc panel, and helical duct left side wall panel 3 and helical duct right side wall panel 4 or so are opposed, helical duct partition wall 5 with
The interior circular hole of left side wall panel 3 be center hole be listed in the shape of a spiral helical duct left side wall panel 3 and helical duct right side wall panel 4 it
Between, the left end of each helical duct partition wall 5 is fixedly connected with helical duct left side wall panel 3, the right end of each helical duct partition wall 5
It is fixedly connected, is formed with the concentric circular row of spiral case 1 in the spiral of 6 periphery of air inlet of spiral case 1 with helical duct right side wall panel 4
Centrifugal channel, it is identical that the hand of spiral of spiral centrifugal channel rotates direction.
The wooden partition of each helical duct partition wall 5 and helical duct left side wall panel 3 and helical duct right side wall panel 4 are perpendicular,
And it is parallel with the axial line of spiral case 1.
Embodiment 2
Referring to shown in Fig. 1, Fig. 2 and Fig. 4, a kind of centrifugal blower, including driving motor 2 and is arranged in spiral case 1 spiral case 1
The air-out passage 7 of the air inlet 6 in left side and the circular shell tangential direction setting along spiral case 1 is equipped with rotary empty in spiral case 1
Gas centrifugal force generating device, driving motor 2 drives the rotation of rotary air centrifugal force generating device, so that the air in spiral case 1
Centrifugal force is generated, 6 side air of air inlet is sucked into air-out passage 7, it is characterised in that: rotary air centrifugal force generating device packet
Include helical duct left side wall panel 3 and one group of helical duct partition wall 5, helical duct left side wall panel 3 is annular slab, annular slab it is interior
Circular hole is corresponding with the air inlet 6 of spiral case 1, and one group of helical duct partition wall 5 is arc panel, and helical duct partition wall 5 is with a left side
The interior circular hole of sidewall paneling 3 is that center hole is listed in helical duct left side wall panel 3 in the shape of a spiral, each helical duct partition wall 5
Left end is fixedly connected with helical duct left side wall panel 3, helical duct left side wall panel 3, each helical duct partition wall 5 and spiral case 1
Right side inner wall is formed with the concentric circular row of spiral case 1 in the spiral centrifugal channel on 6 periphery of air inlet of spiral case 1, spiral to be centrifuged
It is identical that the hand of spiral in channel rotates direction.
The wooden partition and helical duct left side wall panel 3 of each helical duct partition wall 5 are perpendicular, and the axial line phase with spiral case 1
In parallel.
The right end of each helical duct partition wall 5 and the right side inner wall spacing of spiral case 1 are not more than 2cm.
Embodiment 3
Referring to shown in Fig. 1, Fig. 2 and Fig. 5, a kind of centrifugal blower, including driving motor 2 and is arranged in spiral case 1 spiral case 1
The air-out passage 7 of the air inlet 6 in left side and the circular shell tangential direction setting along spiral case 1 is equipped with rotary empty in spiral case 1
Gas centrifugal force generating device, driving motor 2 drives the rotation of rotary air centrifugal force generating device, so that the air in spiral case 1
Centrifugal force is generated, 6 side air of air inlet is sucked into air-out passage 7, rotary air centrifugal force generating device includes helical duct
Right side wall panel 4 and one group of helical duct partition wall 5, helical duct right side wall panel 4 are circular slab, one group of helical duct partition wall 5
It is arc panel, helical duct partition wall 5 is that center hole is listed in the shape of a spiral on the right side of helical duct with the air inlet 6 of spiral case 1
On siding 4, the right end of each helical duct partition wall 5 is fixedly connected with helical duct right side wall panel 4, each helical duct partition wall 5,
Helical duct right side wall panel 4 and the inner left wall of spiral case 1 are formed with the concentric circular row of spiral case 1 in 6 periphery of air inlet of spiral case 1
Spiral centrifugal channel, it is identical that the hand of spiral of spiral centrifugal channel rotates direction.
The wooden partition and helical duct right side wall panel 4 of each helical duct partition wall 5 are perpendicular, and the axial line phase with spiral case 1
In parallel.
The left end of each helical duct partition wall 5 and the inner left wall spacing of spiral case 1 are not more than 2cm.
Working principle
When centrifugal blower works, spiral centrifugal channel driven by the motor, is rotated by the hand of spiral, spiral to be centrifuged
Air in channel is acted on by centrifugal force and is moved out, and generates vacuum degree in the air inlet 6 of spiral case 1, thus from air inlet 6
Axial sucking air.The air of sucking is transferred 90 ° after entering spiral centrifugal channel by water conservancy diversion, into spiral centrifugation
Channel, spiral centrifugal channel high speed rotation generates the air acquisition kinetic energy that centrifugal action keeps it internal and pressure energy is concentrated, led
After stream, it is discharged from air outlet.
Wheel rotation, the air in leaf road (runner that blade is constituted), is acted on by centrifugal force and is moved out, in impeller
Centre generates vacuum degree, thus axially sucks air from air inlet.The air of sucking is transferred 90 ° after entering impeller by water conservancy diversion,
Enter leaf road by vane inlet, kinetic energy and pressure energy are obtained under the action of blade.The air-flow thrown away from Ye Dao enters spiral case, warp
It concentrates, after water conservancy diversion, is discharged by air-out passage 7.
Claims (8)
1. a kind of centrifugal blower, including driving motor (2), spiral case (1) and setting are in the air inlet of the spiral case (1) left side wall
(6) and air-out passage (7) in the circular side wall of the spiral case (1) is set, rotary air is equipped in the spiral case (1)
Centrifugal force generating device, driving motor (2) the driving rotary air centrifugal force generating device rotation, so that the spiral case
(1) air in generates centrifugal force, and air inlet (6) side air is sucked air-out passage (7), it is characterised in that: described rotary
Air centrifugal force generating device include helical duct left side wall panel (3), helical duct right side wall panel (4) and one group of helical duct every
Siding (5), the helical duct left side wall panel (3) are annular slab, the interior circular hole of the annular slab and the air inlet of the spiral case (1)
Mouth (6) is corresponding, and the helical duct right side wall panel (4) is circular slab, and helical duct partition wall (5) is arc described in one group
Plate, the helical duct left side wall panel (3) and the helical duct right side wall panel (4) left and right are opposed, the helical duct next door
Plate (5) be listed in the shape of a spiral using the interior circular hole of the left side wall panel (3) as center hole the helical duct left side wall panel (3) and
Between the helical duct right side wall panel (4), the left end of each helical duct partition wall (5) and the helical duct left side wall
Plate (3) is fixedly connected, and the right end of each helical duct partition wall (5) is fixedly connected with the helical duct right side wall panel (4),
It is formed with the spiral case (1) concentric circular row in the spiral centrifugal channel on air inlet (6) periphery of the spiral case (1), it is described
It is identical that the hand of spiral of spiral centrifugal channel rotates direction.
2. a kind of centrifugal blower according to claim 1, it is characterised in that: the plate of each helical duct partition wall (5)
Wall surface and the helical duct left side wall panel (3) and the helical duct right side wall panel (4) are perpendicular, and with the spiral case (1)
Axial line it is parallel.
3. a kind of centrifugal blower, including driving motor (2), spiral case (1) and setting are in the air inlet of the spiral case (1) left side wall
(6) and air-out passage (7) in the circular side wall of the spiral case (1) is set, rotary air is equipped in the spiral case (1)
Centrifugal force generating device, driving motor (2) the driving rotary air centrifugal force generating device rotation, so that the spiral case
(1) air in generates centrifugal force, and air inlet (6) side air is sucked air-out passage (7), it is characterised in that: described rotary
Air centrifugal force generating device includes helical duct left side wall panel (3) and one group of helical duct partition wall (5), the helical duct
Left side wall panel (3) is annular slab, and the interior circular hole of the annular slab is corresponding with air inlet (6) of the spiral case (1), described in one group
Helical duct partition wall (5) is arc panel, and the helical duct partition wall (5) is with the interior circular hole of the left side wall panel (3)
Centre bore is listed in the shape of a spiral on the helical duct left side wall panel (3), the left end of each helical duct partition wall (5) with
The helical duct left side wall panel (3) is fixedly connected, the helical duct left side wall panel (3), each helical duct partition wall
(5) and the right side inner wall of the spiral case (1) is formed with the spiral case (1) concentric circular row in the air inlet (6) of the spiral case (1)
The spiral centrifugal channel on periphery, it is identical that the hand of spiral of the spiral centrifugal channel rotates direction.
4. a kind of centrifugal blower according to claim 3, it is characterised in that: the plate of each helical duct partition wall (5)
Wall surface and the helical duct left side wall panel (3) are perpendicular and parallel with the axial line of the spiral case (1).
5. a kind of centrifugal blower according to claim 3 or 4, it is characterised in that: each helical duct partition wall (5)
The right side inner wall spacing of right end and the spiral case (1) is not more than 2cm.
6. a kind of centrifugal blower, including driving motor (2), spiral case (1) and setting are in the air inlet of the spiral case (1) left side wall
(6) and air-out passage (7) in the circular side wall of the spiral case (1) is set, rotary air is equipped in the spiral case (1)
Centrifugal force generating device, driving motor (2) the driving rotary air centrifugal force generating device rotation, so that the spiral case
(1) air in generates centrifugal force, and air inlet (6) side air is sucked air-out passage (7), it is characterised in that: described rotary
Air centrifugal force generating device includes helical duct right side wall panel (4) and one group of helical duct partition wall (5), the helical duct
Right side wall panel (4) is circular slab, and helical duct partition wall (5) is arc panel described in one group, the helical duct partition wall (5)
It is that center hole is listed in the shape of a spiral on the helical duct right side wall panel (4) with the air inlet (6) of the spiral case (1), each institute
The right end for stating helical duct partition wall (5) is fixedly connected with the helical duct right side wall panel (4), each helical duct next door
The inner left wall of plate (5), the helical duct right side wall panel (4) and the spiral case (1) is formed and the spiral case (1) coaxial thimble
Be listed in the spiral centrifugal channel on air inlet (6) periphery of the spiral case (1), the hand of spiral of the spiral centrifugal channel with
Its direction of rotation is identical.
7. a kind of centrifugal blower according to claim 6, it is characterised in that: the plate of each helical duct partition wall (5)
Wall surface and the helical duct right side wall panel (4) are perpendicular and parallel with the axial line of the spiral case (1).
8. a kind of centrifugal blower according to claim 6 or 7, it is characterised in that: each helical duct partition wall (5)
The inner left wall spacing of left end and the spiral case (1) is not more than 2cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910184700.3A CN109763987A (en) | 2019-03-12 | 2019-03-12 | A kind of centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910184700.3A CN109763987A (en) | 2019-03-12 | 2019-03-12 | A kind of centrifugal blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109763987A true CN109763987A (en) | 2019-05-17 |
Family
ID=66458208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910184700.3A Pending CN109763987A (en) | 2019-03-12 | 2019-03-12 | A kind of centrifugal blower |
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| Country | Link |
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| CN (1) | CN109763987A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2481886Y (en) * | 2001-06-08 | 2002-03-13 | 顺德市华威风机制造有限公司 | Centrifugal fan |
| CN201513380U (en) * | 2009-10-19 | 2010-06-23 | 浙江双阳风机有限公司 | Impeller of centrifugal fan for monitoring nuclear island atmosphere in nuclear power plant |
| CN102425573A (en) * | 2011-12-14 | 2012-04-25 | 中国舰船研究设计中心 | Low-noise forward multi-wing centrifugal blower |
| CN203009334U (en) * | 2013-01-08 | 2013-06-19 | 株洲联诚集团有限责任公司 | Internal recycling centrifugal fan for cooler of wind-driven generator |
| CN203362556U (en) * | 2013-07-16 | 2013-12-25 | 株洲联诚集团有限责任公司 | Cooling fan for 220T electric-wheel mine dump truck |
| CN103850960A (en) * | 2014-03-24 | 2014-06-11 | 江苏常净环保科技有限公司 | Centrifugal fan for dust collector |
| CN105020174A (en) * | 2015-07-23 | 2015-11-04 | 深圳市帝迈生物技术有限公司 | Small low-noise centrifugal fan and breathing machine comprising same |
| CN108916078A (en) * | 2018-07-16 | 2018-11-30 | 大连碧蓝节能环保科技有限公司 | Helical blade centrifugal blower |
| CN209586747U (en) * | 2019-03-12 | 2019-11-05 | 彰武永红机械制造有限公司 | A kind of centrifugal blower |
-
2019
- 2019-03-12 CN CN201910184700.3A patent/CN109763987A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2481886Y (en) * | 2001-06-08 | 2002-03-13 | 顺德市华威风机制造有限公司 | Centrifugal fan |
| CN201513380U (en) * | 2009-10-19 | 2010-06-23 | 浙江双阳风机有限公司 | Impeller of centrifugal fan for monitoring nuclear island atmosphere in nuclear power plant |
| CN102425573A (en) * | 2011-12-14 | 2012-04-25 | 中国舰船研究设计中心 | Low-noise forward multi-wing centrifugal blower |
| CN203009334U (en) * | 2013-01-08 | 2013-06-19 | 株洲联诚集团有限责任公司 | Internal recycling centrifugal fan for cooler of wind-driven generator |
| CN203362556U (en) * | 2013-07-16 | 2013-12-25 | 株洲联诚集团有限责任公司 | Cooling fan for 220T electric-wheel mine dump truck |
| CN103850960A (en) * | 2014-03-24 | 2014-06-11 | 江苏常净环保科技有限公司 | Centrifugal fan for dust collector |
| CN105020174A (en) * | 2015-07-23 | 2015-11-04 | 深圳市帝迈生物技术有限公司 | Small low-noise centrifugal fan and breathing machine comprising same |
| CN108916078A (en) * | 2018-07-16 | 2018-11-30 | 大连碧蓝节能环保科技有限公司 | Helical blade centrifugal blower |
| CN209586747U (en) * | 2019-03-12 | 2019-11-05 | 彰武永红机械制造有限公司 | A kind of centrifugal blower |
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