CN108730212B - Regulation formula centrifugal fan - Google Patents
Regulation formula centrifugal fan Download PDFInfo
- Publication number
- CN108730212B CN108730212B CN201810492331.XA CN201810492331A CN108730212B CN 108730212 B CN108730212 B CN 108730212B CN 201810492331 A CN201810492331 A CN 201810492331A CN 108730212 B CN108730212 B CN 108730212B
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- CN
- China
- Prior art keywords
- dust collecting
- centrifugal fan
- collecting plate
- side wall
- base supporting
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
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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
- F04D29/40—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
- F04D29/4226—Fan casings
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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
Abstract
The invention discloses an adjustable centrifugal ventilator which comprises a centrifugal ventilator, a base supporting block, an air outlet and a servo motor, wherein a plurality of air vents are formed in a flexible wind shield, three groups of horizontal sliding grooves are formed in a symmetrical side wall of the air outlet, through holes are formed in the side wall of the base supporting block, and a dust collecting plate placing groove is formed in the middle of the top end of the base supporting block. The dust collecting plate is novel in structure, ingenious in design and simple in operation, is convenient for people to use, can adjust the air exhaust efficiency of the device by utilizing the plurality of chambers and the plurality of flexible wind shields, and further meets the production requirements of people.
Description
Technical Field
The invention relates to the technical field of centrifugal ventilators, in particular to an adjustable centrifugal ventilator.
Background
When the impeller rotates, the gas between the blades of the centrifugal fan is subjected to centrifugal force to obtain kinetic energy (dynamic pressure head) to be discharged from the periphery of the impeller, and the kinetic energy is guided by the volute-shaped casing to flow towards the outlet of the fan, so that negative pressure is formed at the central part of the impeller, external airflow continuously flows in and is supplemented, and the fan can discharge the gas. The motor transmits power to the fan impeller through the shaft, the impeller rotates to transmit energy to air, the air generates centrifugal force under the action of rotation, the air spreads to the periphery along the blades of the fan impeller, and at the moment, the larger the fan impeller is, the larger the energy received by the air is, namely, the larger the pressure head (air pressure) of the fan is. The centrifugal ventilator mainly comprises an impeller and a casing, the impeller of the small ventilator is directly arranged on the motor, and the large ventilator is connected with the motor through a coupling or a belt pulley. The centrifugal ventilator generally adopts single-side air inlet and uses a single-stage impeller; the high flow rate can be used for double-side air intake, and two back-to-back impellers are used, and the double-suction centrifugal ventilator is also called.
The traditional centrifugal ventilator controls the rotation speed of an impeller to adjust the working speed of the ventilator, so that the rotation speed of a servo motor needs to be adjusted, if the rotation speed of the motor needs to be adjusted frequently, the motor is damaged, the use of the servo motor or the service life of the device is affected, the device is replaced or maintained frequently, the working efficiency of the device cannot be guaranteed, and the device is contrary to the popularization of the problem of saving and protecting environment which is advocated at present.
Disclosure of Invention
In order to solve the problems, the invention provides an adjustable centrifugal fan.
The invention relates to an adjustable centrifugal fan which comprises a centrifugal fan, a base supporting block, an air outlet and a servo motor, wherein the middle of the side wall at one end of the centrifugal fan is rotatably connected with the horizontal servo motor, the bottom end of the centrifugal fan is fixedly connected with the base supporting block, the inner side wall of the centrifugal fan is fixedly connected with a clamping block and two side plates, the top end of the clamping block is fixedly connected with the two side plates, three chambers are formed between the two side plates and the inner side wall of the centrifugal fan, flexible wind shields are clamped in the inner chambers of the three chambers, a plurality of air vents are formed in the flexible wind shields, three groups of horizontal sliding grooves are formed in a symmetrical side wall of the air outlet, the three groups of horizontal sliding grooves are respectively and correspondingly communicated with the three chambers, through holes are formed in the side wall of the base supporting block, and a dust, wherein the inner chamber of through-hole, dust collecting plate standing groove and centrifugal fan communicates in proper order, the joint has the dust collecting plate in the dust collecting plate standing groove, and wherein the one end joint of dust collecting plate is in the through-hole, and just in the middle of centrifugal fan's the inner chamber directly over the dust collecting plate.
In the above scheme, curb plate and fixture block are fixed welding, wherein the thickness of cavity and the thickness phase-match on the toughness deep bead, fixedly connected with push-and-pull piece in the middle of the top lateral wall of toughness deep bead, wherein the diameter in ventilation hole increases in proper order on the three toughness deep bead of centrifugal fan from inside to outside.
In the above scheme, a dust collecting groove is formed in the middle of the top end of the dust collecting plate, a U-shaped rod is fixedly connected to the middle of the side wall of the dust collecting plate, and the U-shaped rod is placed in the middle of the through hole.
In the above scheme, the one end that spout and cavity are connected all is equipped with the chamfer, and wherein the thickness of spout and the thickness phase-match of cavity.
In the scheme, the base supporting block is fixedly welded at the bottom end of the centrifugal fan in a seamless mode, and the air outlet is in a hollow rectangular shape or a hollow square shape.
In the above scheme, the size and the shape of the dust collecting plate placing groove are the same as those of the dust collecting plate.
The invention has the advantages and beneficial effects that: the air exhaust device is novel in structure, ingenious in design and simple in operation, is convenient for people to use, and can adjust the air exhaust efficiency of the air exhaust device by utilizing the plurality of cavities and the plurality of tough wind shields, so that the production requirements of people are met.
A plurality of spouts in this device make things convenient for toughness deep bead horizontal joint in the air outlet of this device, and then adjust the efficiency of airing exhaust of this device, can not change servo motor's rotational speed simultaneously, utilize fixture block and curb plate, the convenience is stored, is placed toughness deep bead's fixed.
The dust collecting plate is convenient to collect larger dust particles screened by the centrifugal fan in the using process, and the dust collecting groove of the dust collecting plate can take the collected large particles out of the inner cavity of the centrifugal fan, so that the dust on the dust collecting plate is convenient to clean or remove.
This device is when using, people are earlier on the toughness deep bead joint of the wind speed of need discharging on the air exit, then start servo motor, wind gets into from centrifugal fan's air intake, under the effect of fan blade in the ventilation machine, great dust landing is in this centrifugal fan's inner chamber bottom, the landing is on the dust collecting plate at last, wind is discharged from the air exit simultaneously, hold when pushing away the drawing piece and remove the horizontally spout in toughness deep bead from the cavity when people, wind is then discharged through the ventilation hole on the toughness deep bead, when the dust on the dust collecting plate in this centrifugal fan is too much, people can push-and-pull U type pole, make the dust collecting plate pull out in following the dust collecting plate standing groove, then people wash the dust on this dust collecting plate, at last place the dust collecting plate in the dust collecting plate standing groove again can.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic top view of the present invention.
Fig. 2 is a schematic front view of the whole structure of the present invention.
Fig. 3 is a schematic sectional structure view of the whole of the present invention.
Fig. 4 is an enlarged schematic view of the structure of the present invention at a.
FIG. 5 is an enlarged schematic view of the present invention at B.
FIG. 6 is a schematic top view of the dust collecting plate of the present invention.
In the figure: 1-centrifugal ventilator, 10-base supporting block, 101-through hole, 102-dust collecting plate, 1021-dust collecting groove, 1022-U-shaped rod, 103-dust collecting plate placing groove, 2-air outlet, 20-sliding groove, 3-servo motor, 4-clamping block, 5-side plate, 6-flexible wind shield, 60-push-pull block, 61-air vent and 7-chamber.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1-6, an adjustable centrifugal fan, including centrifugal fan 1, base supporting block 10, air exit 2 and servo motor 3, the horizontal servo motor 3 is connected to rotating in the middle of the one end lateral wall of centrifugal fan 1, the bottom fixedly connected with base supporting block 10 of centrifugal fan 1, the fixed seamless welding in the bottom of centrifugal fan 1 of base supporting block 10, the shape of air exit 2 is hollow rectangle or hollow square, make things convenient for joint toughness deep bead 6, so as to remove this toughness deep bead 6, and then satisfy the toughness deep bead 6 that people need different air exhaust rates.
The inside wall of the centrifugal fan 1 is fixedly connected with a clamping block 4 and two side plates 5, the top end of the clamping block 4 is fixedly connected with the two side plates 5, wherein three chambers 7 are formed between the two side plates 5 and the inside wall of the centrifugal fan 1, and tough wind shields 6 are clamped in inner cavities of the three chambers 7, a plurality of vent holes 61 are formed in the tough wind shields 6, three groups of horizontal sliding grooves 20 are formed in a symmetrical side wall of the air outlet 2, wherein the three groups of horizontal sliding grooves 20 are respectively and correspondingly communicated with the three chambers 7, one end of the sliding groove 20 connected with the chambers 7 is provided with a chamfer angle, wherein the thickness of the sliding groove 20 is matched with that of the chamber 7, the plurality of sliding grooves 20 in the device are convenient for the tough wind shields 6 to be horizontally clamped in the air outlet 2 of the device, so as to adjust the air exhaust efficiency of the device, and simultaneously, the rotating speed of, the flexible wind shield 6 is convenient to be fixedly stored and placed.
The side plates 5 and the fixture blocks 4 are fixedly welded, wherein the thickness of the cavity 7 is matched with that of the tough wind shield 6, the push-pull block 60 is fixedly connected in the middle of the side wall of the top end of the tough wind shield 6, and the diameters of the vent holes 61 in the three tough wind shields 6 of the centrifugal ventilator 1 from inside to outside are sequentially increased.
The side wall of the base supporting block 10 is provided with a through hole 101, the top end middle of the base supporting block 10 is provided with a dust collecting plate placing groove 103, wherein the through hole 101, the dust collecting plate placing groove 103 and the inner cavity of the centrifugal fan 1 are sequentially communicated, the dust collecting plate 102 is connected in the dust collecting plate placing groove 103 in a clamping manner, one end of the dust collecting plate 102 is clamped in the through hole 101, the right upper side of the dust collecting plate 102 is opposite to the middle of the inner cavity of the centrifugal fan 1, the top end middle of the dust collecting plate 102 is provided with a dust collecting groove 1021, the side wall middle of the dust collecting plate 102 is fixedly connected with a U-shaped rod 1022, the U-shaped rod 1022 is placed in the middle of the through hole 101, the size and the shape of the dust collecting plate placing groove 103 are the same as the size and the shape of the dust collecting plate 102, the dust collecting plate 102 in the invention is convenient for collecting larger dust particles screened by the centrifugal fan 1 in the, thereby facilitating cleaning or removal of dust from the dust collection plate 102.
The working principle of the invention is as follows: when the device is used, people firstly clamp the flexible wind shield 6 with the wind speed required to be discharged on the air outlet 2, then start the servo motor 3, wind enters from the air inlet of the centrifugal ventilator 1, under the action of the fan blades in the ventilator, larger dust slides down to the bottom end of the inner cavity of the centrifugal ventilator 1 and finally slides down to the dust collecting plate 102, meanwhile, the wind is exhausted from the air outlet 2, when people hold the push-pull block 60 to move the flexible wind shield 6 from the cavity 7 into the horizontal chute 20, the wind is exhausted through the vent holes 61 on the flexible wind shield 6, when the dust on the dust collecting plate 102 in the centrifugal fan 1 is excessive, one pushes or pulls the U-shaped bar 1022, so that the dust collecting plate 102 is pulled out from the dust collecting plate seating groove 103, then, the dust on the dust collecting plate 102 is washed away by a person, and finally, the dust collecting plate 102 is placed in the dust collecting plate placing groove 103.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. The utility model provides an adjust formula centrifugal fan, includes centrifugal fan (1), base supporting shoe (10), air exit (2) and servo motor (3), the one end lateral wall intermediate rotation of centrifugal fan (1) is connected with horizontally servo motor (3), the bottom fixedly connected with base supporting shoe (10) of centrifugal fan (1), its characterized in that: the air exhaust fan is characterized in that a clamping block (4) and two side plates (5) are fixedly connected to the inner side wall of the centrifugal fan (1), the top end of the clamping block (4) is fixedly connected with the two side plates (5), three chambers (7) are formed between the two side plates (5) and the inner side wall of the centrifugal fan (1), flexible wind shields (6) are clamped in inner chambers of the three chambers (7), a plurality of vent holes (61) are formed in the flexible wind shields (6), three groups of horizontal sliding grooves (20) are formed in a symmetrical side wall of the air outlet (2), the three groups of horizontal sliding grooves (20) are respectively communicated with the three chambers (7) correspondingly, through holes (101) are formed in the side wall of the base supporting block (10), a dust collecting plate placing groove (103) is formed in the middle of the top end of the base supporting block (10), and the through holes (101), the dust collecting plate placing groove (103) and the, a dust collecting plate (102) is connected in the dust collecting plate placing groove (103) in a clamping manner, wherein one end of the dust collecting plate (102) is connected in the through hole (101) in a clamping manner, and the middle of an inner cavity of the centrifugal fan (1) is just aligned to the upper side of the dust collecting plate (102); curb plate (5) and fixture block (4) are fixed weld, wherein the thickness phase-match on the thickness of cavity (7) and toughness deep bead (6), fixedly connected with pushes away and draws piece (60) in the middle of the top lateral wall of toughness deep bead (6), and wherein the diameter that ventilation hole (61) increased in proper order on centrifugal fan (1) three toughness deep bead (6) from inside to outside.
2. The adjustable centrifugal ventilator according to claim 1, wherein a dust collecting groove (1021) is formed in the middle of the top end of the dust collecting plate (102), a U-shaped rod (1022) is fixedly connected to the middle of the side wall of the dust collecting plate (102), and the U-shaped rod (1022) is placed in the middle of the through hole (101).
3. A regulating centrifugal fan according to claim 1, characterized in that the ends where the chute (20) and the chamber (7) are connected are chamfered, wherein the thickness of the chute (20) matches the thickness of the chamber (7).
4. An adjustable centrifugal fan according to claim 1, wherein the base support block (10) is fixedly welded to the bottom end of the centrifugal fan (1) in a seamless manner, and the air outlet (2) is shaped as a hollow rectangle or a hollow square.
5. Regulating centrifugal ventilator according to claim 1, characterised in that the dimensions and shape of the plate slots (103) and the dimensions and shape of the plate (102) are identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810492331.XA CN108730212B (en) | 2018-05-22 | 2018-05-22 | Regulation formula centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810492331.XA CN108730212B (en) | 2018-05-22 | 2018-05-22 | Regulation formula centrifugal fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108730212A CN108730212A (en) | 2018-11-02 |
| CN108730212B true CN108730212B (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810492331.XA Active CN108730212B (en) | 2018-05-22 | 2018-05-22 | Regulation formula centrifugal fan |
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| Country | Link |
|---|---|
| CN (1) | CN108730212B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204805124U (en) * | 2015-05-28 | 2015-11-25 | 楼雪枫 | Fan structure with air regulation function |
| CN105889090A (en) * | 2016-04-14 | 2016-08-24 | 韦海报 | Exhaust-air-volume-adjustable grate cooler |
| CN205858745U (en) * | 2016-07-07 | 2017-01-04 | 大冶有色设计研究院有限公司 | A kind of high-temperature blower of quick shear air quantity |
| CN207004897U (en) * | 2017-05-25 | 2018-02-13 | 中国能源建设集团广东火电工程有限公司 | A kind of pressure fan being used in power plant construction |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| UA107094C2 (en) * | 2009-11-03 | 2014-11-25 | CENTRAL CEILING FAN |
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2018
- 2018-05-22 CN CN201810492331.XA patent/CN108730212B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204805124U (en) * | 2015-05-28 | 2015-11-25 | 楼雪枫 | Fan structure with air regulation function |
| CN105889090A (en) * | 2016-04-14 | 2016-08-24 | 韦海报 | Exhaust-air-volume-adjustable grate cooler |
| CN205858745U (en) * | 2016-07-07 | 2017-01-04 | 大冶有色设计研究院有限公司 | A kind of high-temperature blower of quick shear air quantity |
| CN207004897U (en) * | 2017-05-25 | 2018-02-13 | 中国能源建设集团广东火电工程有限公司 | A kind of pressure fan being used in power plant construction |
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| Publication number | Publication date |
|---|---|
| CN108730212A (en) | 2018-11-02 |
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