CN111456953A - Explosion-proof frequency conversion energy-saving centrifugal fan - Google Patents
Explosion-proof frequency conversion energy-saving centrifugal fan Download PDFInfo
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- CN111456953A CN111456953A CN202010270667.9A CN202010270667A CN111456953A CN 111456953 A CN111456953 A CN 111456953A CN 202010270667 A CN202010270667 A CN 202010270667A CN 111456953 A CN111456953 A CN 111456953A
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- Prior art keywords
- air outlet
- outlet pipe
- guide
- adjusting
- explosion
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- 238000006243 chemical reaction Methods 0.000 title claims description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000008901 benefit Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
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
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/002—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying geometry within the pumps, e.g. by adjusting vanes
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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
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the field of fans, in particular to an explosion-proof variable-frequency energy-saving centrifugal fan, wherein two guide plates are oppositely arranged in an air outlet pipe from top to bottom, two parallel adjusting plates are also oppositely arranged in the air outlet pipe from top to bottom, a linkage mechanism for driving the adjusting plates to move up and down is arranged on the air outlet pipe, a plurality of parallel guide vanes are arranged in parallel in the front and back of the air outlet pipe, a small shaft is rotatably arranged in a through hole, a vertically extending long strip-shaped hole is arranged on the small shaft, and an adjusting mechanism for driving the guide vanes; the invention reduces the distance between the two adjusting plates by moving the two adjusting plates inwards, increases the wind pressure discharged between the two adjusting plates, or increases the distance between the two adjusting plates by moving the two adjusting plates outwards, reduces the wind pressure discharged between the two adjusting plates, and adjusts the wind direction discharged between the two adjusting plates by rotating and adjusting the plurality of guide vanes, thereby being convenient for adjustment.
Description
Technical Field
The invention relates to the field of fans, in particular to an explosion-proof variable-frequency energy-saving centrifugal fan.
Background
An explosion-proof frequency-conversion energy-saving centrifugal ventilator is a driven fluid machine which relies on input mechanical energy to increase gas pressure and discharge gas. The explosion-proof frequency conversion energy-saving centrifugal ventilator is widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and draught of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grains; wind tunnel wind source and air cushion boat inflation and propulsion. The existing explosion-proof frequency conversion energy-saving centrifugal ventilator is heavy, the wind direction of an air outlet is not convenient to adjust, and the use is not convenient.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an explosion-proof variable-frequency energy-saving centrifugal fan, the wind direction of an air outlet is convenient to adjust, and the wind pressure of the air outlet is convenient to adjust, so that the problems in the prior art are solved.
In order to solve the technical problems, the technical scheme of the invention is as follows: an anti-explosion frequency-conversion energy-saving centrifugal ventilator comprises a cylindrical shell, wherein an impeller is arranged in the shell, a driving motor for driving the impeller to rotate is fixedly installed on the outer side of one end of the shell, an air inlet pipe communicated with an inner cavity of the shell is fixedly installed on the outer side of the other end of the shell, and an air outlet pipe communicated with the inner cavity of the shell is fixedly installed on the outer peripheral surface of the shell; the air outlet pipe extends transversely, two guide plates are oppositely arranged in the air outlet pipe from top to bottom, one ends of the two guide plates are respectively hinged to the upper side wall and the lower side wall of the air outlet pipe, two adjusting plates which are parallel to each other are also oppositely arranged in the air outlet pipe from top to bottom, the guide plates and the adjusting plates are in one-to-one correspondence, the other ends of the guide plates are hinged to one ends, close to the shell, of the adjusting plates, and a linkage mechanism for driving the adjusting plates to move up and down is arranged on the air; the utility model discloses a wind-out air conditioner, including air-out pipe, guide vane, regulating plate, staff, air-out pipe, the front and back is equipped with a plurality of parallel guide vane each other side by side around in the air-out pipe, guide vane rotates to be installed in the air-out pipe, the vertical extension of guide vane pivoted axis, two the regulating plate with the corresponding department of guide vane all is equipped with the through-hole of vertical extension, the staff is installed to the through-hole internal rotation, be equipped with the rectangular shape hole of vertical extension on the staff, guide.
As preferred technical scheme, the guide plate includes first plate body and second plate body, the one end of first plate body articulates on the last lateral wall of air-out pipe or the lateral wall down, the one end of second plate body articulates corresponding the regulating plate is close to the one end of casing, the second plate body is kept away from the one end of regulating plate be equipped with first plate body assorted slot.
As a further improvement, a spring for enabling the first plate body to be retracted into the slot is arranged between the slot and the corresponding first plate body.
As an optimal technical scheme, the upper end and the lower end of each guide vane are respectively and fixedly provided with a vertically extending rotating shaft, and the guide vanes are rotatably arranged in the air outlet pipe through the rotating shafts.
As a further improvement, the driving motor is electrically connected with a frequency converter.
As a further improvement, the driving motor is an explosion-proof motor.
As a preferred technical scheme, two vertically extending guide posts are oppositely and fixedly mounted on the front and back of the outer side of the adjusting plate, guide holes matched with the guide posts are formed in the air outlet pipe, and a connecting plate located on the outer side of the air outlet pipe is fixedly mounted at one end, far away from the adjusting plate, of each of the two guide posts; the driving mechanism is an electric telescopic column fixedly arranged between the connecting plate and the air outlet pipe.
As a preferred technical scheme, a rotating shaft at the upper end of the guide vane extends upwards to the upper part of the air outlet pipe and is fixedly provided with a swinging block, the upper side of the air outlet pipe is provided with a sliding chute extending forwards and backwards, a sliding block is arranged in the sliding chute in a sliding manner, a plurality of vertical shafts corresponding to the swinging blocks in a one-to-one manner are fixedly arranged on the sliding block in a front-to-back parallel manner, and the swinging block is provided with a waist hole matched with the corresponding vertical shaft; the adjusting mechanism comprises an adjusting motor fixedly installed on the upper side of the air outlet pipe, the extending direction of the rotating shaft of the adjusting motor is perpendicular to the extending direction of the sliding groove, a gear is coaxially and fixedly installed on the rotating shaft of the adjusting motor, and a rack meshed with the gear is fixedly installed on the sliding block.
Due to the adoption of the technical scheme, the explosion-proof variable-frequency energy-saving centrifugal ventilator is characterized in that an impeller is arranged in a shell, a driving motor is fixedly installed at one end of the shell, an air inlet pipe is fixedly installed at the other end of the shell, an air outlet pipe is fixedly installed on the outer peripheral surface of the shell, two guide plates are oppositely arranged in the air outlet pipe from top to bottom, two adjusting plates which are parallel to each other are also oppositely arranged in the air outlet pipe from top to bottom, a linkage mechanism for driving the adjusting plates to move up and down is arranged on the air outlet pipe, a plurality of guide vanes which are parallel to each other are arranged in the air outlet pipe from front to back in parallel, a small shaft is rotatably installed in a through hole, a vertically extending elongated hole; the distance between the two adjusting plates is reduced by moving the two adjusting plates inwards, the wind pressure discharged between the two adjusting plates is increased under the condition that the rotating speed of the driving motor is not changed, or the distance between the two adjusting plates is increased by moving the two adjusting plates outwards, the wind pressure discharged between the two adjusting plates is reduced under the condition that the rotating speed of the driving motor is not changed, and in addition, the wind direction discharged between the two adjusting plates is adjusted by rotating and adjusting the plurality of guide vanes, so that the wind-driven generator has the advantage of convenience in adjustment; the invention changes the rotating speed of the driving motor through the frequency converter, thereby changing the air inlet quantity of the air inlet pipe and the air outlet quantity of the air outlet pipe, and adjusting the distance between the two adjusting plates in a matching way to adjust the pressure of the exhausted air, thereby having the advantage of energy saving; the driving motor is an explosion-proof motor, and has the advantage of high safety when used in flammable and explosive places.
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 structural diagram of an embodiment of the present invention;
FIG. 2 is a partial enlarged view of section I in FIG. 1
FIG. 3 is a schematic diagram of a baffle according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view A-A of FIG. 1;
FIG. 5 is a schematic view showing the structure of a regulating plate according to a new embodiment of the present invention;
FIG. 6 is a schematic view showing the structure of the adjusting plate according to the new embodiment of the present invention when it is moved inward;
fig. 7 is a schematic top view of fig. 1.
In the figure: 1-a shell; 2-an impeller; 3-driving a motor; 4-an air inlet pipe; 5-air outlet pipe; 6-a deflector; 61-a first plate body; 62-a second plate body; 63-slot; 64-a spring; 7-adjusting plate; 8-guide vanes; 9-a through hole; 10-small shaft; 11-elongated holes; 12-a rotating shaft; 13-a guide post; 14-a pilot hole; 15-a connecting plate; 16-an electric telescopic column; 17-a swing block; 18-a chute; 19-a slide block; 20-vertical axis; 21-waist hole; 22-a regulating motor; 23-a gear; 24-rack.
Detailed Description
As shown in fig. 1 to 7, an explosion-proof frequency-conversion energy-saving centrifugal ventilator comprises a cylindrical housing 1, wherein an impeller 2 is arranged in the housing 1, a driving motor 3 for driving the impeller 2 to rotate is fixedly mounted on the outer side of one end of the housing 1, an air inlet pipe 4 communicated with an inner cavity of the housing 1 is fixedly mounted on the outer side of the other end of the housing 1, and an air outlet pipe 5 communicated with the inner cavity of the housing 1 is fixedly mounted on the outer peripheral surface of the housing 1; the impeller 2 is driven to rotate by the driving motor 3, and when the impeller 2 rotates, air is sucked into the shell 1 from the air inlet pipe 4 and then is discharged from the air outlet pipe 5. The air outlet pipe 5 extends transversely, two guide plates 6 are oppositely arranged in the air outlet pipe 5 from top to bottom, one ends of the two guide plates 6 are respectively hinged to the upper side wall and the lower side wall of the air outlet pipe 5, two adjusting plates 7 which are parallel to each other are also oppositely arranged in the air outlet pipe 5 from top to bottom, the guide plates 6 correspond to the adjusting plates 7 one by one, the other ends of the guide plates 6 are hinged to one end, close to the shell 1, of the adjusting plates 7, and a linkage mechanism for driving the adjusting plates 7 to move up and down is arranged on the air outlet pipe 5; when the air is discharged from the air outlet pipe 5, the air is converged between the two adjusting plates 7 through the flow guiding action of the two flow guiding plates 6, and finally the air is discharged from between the two adjusting plates 7. The distance between the two adjusting plates 7 can be reduced by moving the two adjusting plates 7 inwards, as shown in fig. 6, under the condition that the rotating speed of the driving motor 3 is not changed, the air inlet amount of the air inlet pipe 4 and the air outlet amount of the air outlet pipe 5 are not changed, so that the air pressure discharged between the two adjusting plates is increased; conversely, the distance between the two adjusting plates 7 is increased by moving the two adjusting plates 7 outwards, and the wind pressure discharged between the two adjusting plates 7 is reduced under the condition that the rotating speed of the driving motor 3 is not changed. A plurality of guide vanes 8 which are parallel to each other are arranged in the air outlet pipe 5 in parallel from front to back, the guide vanes 8 are rotatably installed in the air outlet pipe 5, the rotating axis of the guide vanes 8 extends vertically, through holes 9 which extend vertically are formed in the positions, corresponding to the guide vanes 8, of the two adjusting plates 7, small shafts 10 are rotatably installed in the through holes 9, elongated holes 11 which extend vertically are formed in the small shafts 10, the guide vanes 8 are movably installed in the elongated holes 11, and an adjusting mechanism which drives the guide vanes 8 to rotate is arranged on the air outlet pipe 5; when air flows through the guide vanes 8, the air is guided by the guide vanes 8, and finally, wind parallel to the guide vanes 8 is discharged from between the two adjusting plates 7; the wind direction discharged from the space between the two adjusting plates 7 can be adjusted by rotating and adjusting the plurality of guide vanes 8; when the two adjusting plates 7 move up and down, the small shaft 10 moves up and down along the guide vanes 8 following the adjusting plates 7, thereby matching the guide vanes 8 to the distance between the two adjusting plates 7.
Guide plate 6 includes first plate body 61 and second plate body 62, the one end of first plate body 61 articulates on the last lateral wall of air-out pipe 5 or the lateral wall down, the one end of second plate body 62 articulates corresponding regulating plate 7 is close to the one end of casing 1, second plate body 62 is kept away from the one end of regulating plate 7 be equipped with first plate body 61 assorted slot 63. When the adjusting plate 7 moves up and down, the length of the guide plate 6 is changed, so that the first plate body 61 extends out of the slot 63 to lengthen the guide plate 6, or the first plate body 61 retracts inwards into the slot 63 to shorten.
A spring 64 for enabling the first plate body 61 to be retracted into the slot 63 is arranged between the slot 63 and the corresponding first plate body 61, so that when the guide plate 6 is shortened, the spring 64 can be used for pulling the first plate body 61 to be retracted into the slot 63.
The upper end and the lower end of the guide vane 8 are respectively and fixedly provided with a vertically extending rotating shaft 12, and the guide vane 8 is rotatably arranged in the air outlet pipe 5 through the rotating shaft 12.
The driving motor 3 is electrically connected with a frequency converter, the rotating speed of the driving motor 3 is changed through the frequency converter, so that the air inlet quantity of the air inlet pipe 4 and the air outlet quantity of the air outlet pipe 5 are changed, and the distance between the two adjusting plates 7 is adjusted in a matched mode to adjust the pressure of discharged air; when the energy-saving frequency-reducing device is used specifically, the rotating speed of the driving motor 3 can be reduced through the frequency converter, so that the air inlet quantity of the air inlet pipe 4 and the air outlet quantity of the air outlet pipe 5 are reduced, and in addition, the distance between the two adjusting plates 7 is reduced through adjustment, so that the air pressure is kept unchanged when the driving motor 3 reduces the frequency, and the purpose of saving energy is achieved so as to achieve the purpose of saving energy.
The driving motor 3 is an explosion-proof motor so as to improve the safety of the device when the device is used in flammable and explosive places.
Two vertically extending guide posts 13 are oppositely and fixedly mounted on the front and back of the outer side of the adjusting plate 7, guide holes 14 matched with the guide posts 13 are formed in the air outlet pipe 5, and a connecting plate 15 located on the outer side of the air outlet pipe 5 is fixedly mounted at one end, far away from the adjusting plate 7, of each of the two guide posts 13; the driving mechanism is an electric telescopic column 16 fixedly arranged between the connecting plate 15 and the air outlet pipe 5. Specifically, when the electric telescopic column 16 extends, the adjusting plate 7 is driven to move outwards through the connecting plate 15 and the guide column 13, so that the distance between the two adjusting plates 7 is increased; or when the electric telescopic column 16 contracts, the adjusting plate 7 is driven to move inwards through the connecting plate 15 and the guide column 13, so that the distance between the two adjusting plates 7 is reduced.
A rotating shaft 12 at the upper end of the guide vane 8 extends upwards to the upper part of the air outlet pipe 5 and is fixedly provided with a swinging block 17, the upper side of the air outlet pipe 5 is provided with a sliding chute 18 extending forwards and backwards, a sliding block 19 is arranged in the sliding chute 18 in a sliding manner, a plurality of vertical shafts 20 which correspond to the swinging block 17 one by one are fixedly arranged on the sliding block 19 in a front-back parallel manner, and the swinging block 17 is provided with a waist hole 21 matched with the corresponding vertical shaft 20; adjustment mechanism includes fixed mounting the accommodate motor 22 of the upside of tuber pipe 5, the extending direction perpendicular to of accommodate motor 22's axis of rotation the extending direction of spout 18, coaxial fixed mounting has gear 23 in accommodate motor 22's the axis of rotation, fixed mounting have on the slider 19 with gear 23 engaged with rack 24. Specifically, when the adjusting motor 22 rotates, the gear 23 drives the rack 24 to move back and forth, the rack 24 drives the electric slider 19 to move back and forth in the sliding groove 18, and the slider 19 drives the rotating shaft 12 and the guide vanes 8 to rotate through the vertical shaft 20 and the swinging block 17, so that the wind direction discharged from between the two adjusting plates 7 is adjusted.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides an energy-conserving centrifugal fan of explosion-proof frequency conversion which characterized in that: the fan comprises a cylindrical shell, wherein an impeller is arranged in the shell, a driving motor for driving the impeller to rotate is fixedly mounted on the outer side of one end of the shell, an air inlet pipe communicated with an inner cavity of the shell is fixedly mounted on the outer side of the other end of the shell, and an air outlet pipe communicated with the inner cavity of the shell is fixedly mounted on the outer peripheral surface of the shell; the air outlet pipe extends transversely, two guide plates are oppositely arranged in the air outlet pipe from top to bottom, one ends of the two guide plates are respectively hinged to the upper side wall and the lower side wall of the air outlet pipe, two adjusting plates which are parallel to each other are also oppositely arranged in the air outlet pipe from top to bottom, the guide plates and the adjusting plates are in one-to-one correspondence, the other ends of the guide plates are hinged to one ends, close to the shell, of the adjusting plates, and a linkage mechanism for driving the adjusting plates to move up and down is arranged on the air; the utility model discloses a wind-out air conditioner, including air-out pipe, guide vane, regulating plate, staff, air-out pipe, the front and back is equipped with a plurality of parallel guide vane each other side by side around in the air-out pipe, guide vane rotates to be installed in the air-out pipe, the vertical extension of guide vane pivoted axis, two the regulating plate with the corresponding department of guide vane all is equipped with the through-hole of vertical extension, the staff is installed to the through-hole internal rotation, be equipped with the rectangular shape hole of vertical extension on the staff, guide.
2. An explosion-proof frequency conversion energy-saving centrifugal fan as claimed in claim 1, wherein: the guide plate includes first plate body and second plate body, the one end of first plate body articulates on the last lateral wall of air-out pipe or the lateral wall down, the one end of second plate body articulates corresponding the regulating plate is close to the one end of casing, the second plate body is kept away from the one end of regulating plate be equipped with first plate body assorted slot.
3. An explosion-proof frequency conversion energy-saving centrifugal fan as claimed in claim 2, wherein: and a spring for enabling the first plate body to be retracted into the slot is arranged between the slot and the corresponding first plate body.
4. An explosion-proof frequency conversion energy-saving centrifugal fan as claimed in claim 1, wherein: the upper end and the lower end of the guide vane are respectively and fixedly provided with a vertically extending rotating shaft, and the guide vane is rotatably arranged in the air outlet pipe through the rotating shaft.
5. An explosion-proof frequency conversion energy-saving centrifugal fan as claimed in claim 1, wherein: the driving motor is electrically connected with a frequency converter.
6. An explosion-proof frequency conversion energy-saving centrifugal fan as claimed in claim 1, wherein: the driving motor is an explosion-proof motor.
7. An explosion-proof frequency conversion energy-saving centrifugal fan as claimed in claim 1, wherein: two guide columns which vertically extend are oppositely and fixedly installed on the front side and the rear side of the outer side of the adjusting plate, guide holes matched with the guide columns are formed in the air outlet pipe, and a connecting plate located on the outer side of the air outlet pipe is fixedly installed at one end, far away from the adjusting plate, of each of the two guide columns; the driving mechanism is an electric telescopic column fixedly arranged between the connecting plate and the air outlet pipe.
8. An explosion-proof frequency conversion energy-saving centrifugal fan as defined in claim 4, characterized in that: a rotating shaft at the upper end of the guide vane extends upwards to the upper part of the air outlet pipe and is fixedly provided with a swinging block, the upper side of the air outlet pipe is provided with a sliding chute extending forwards and backwards, a sliding block is arranged in the sliding chute in a sliding manner, a plurality of vertical shafts corresponding to the swinging block in a one-to-one manner are fixedly arranged on the sliding block in a front-to-back parallel manner, and the swinging block is provided with a waist hole matched with the corresponding vertical shaft; the adjusting mechanism comprises an adjusting motor fixedly installed on the upper side of the air outlet pipe, the extending direction of the rotating shaft of the adjusting motor is perpendicular to the extending direction of the sliding groove, a gear is coaxially and fixedly installed on the rotating shaft of the adjusting motor, and a rack meshed with the gear is fixedly installed on the sliding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010270667.9A CN111456953A (en) | 2020-04-08 | 2020-04-08 | Explosion-proof frequency conversion energy-saving centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010270667.9A CN111456953A (en) | 2020-04-08 | 2020-04-08 | Explosion-proof frequency conversion energy-saving centrifugal fan |
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| Publication Number | Publication Date |
|---|---|
| CN111456953A true CN111456953A (en) | 2020-07-28 |
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ID=71677632
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010270667.9A Pending CN111456953A (en) | 2020-04-08 | 2020-04-08 | Explosion-proof frequency conversion energy-saving centrifugal fan |
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| CN (1) | CN111456953A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997940A (en) * | 2020-09-27 | 2020-11-27 | 江苏恒康机电有限公司 | Centrifugal fan with adjustable bottom noise |
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| CN210087649U (en) * | 2019-05-20 | 2020-02-18 | 浙江精创风机有限公司 | High-pressure centrifugal fan |
| CN212838430U (en) * | 2020-04-08 | 2021-03-30 | 江苏超惠特种风机有限公司 | Explosion-proof frequency conversion energy-saving centrifugal fan |
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2020
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847694A (en) * | 2015-05-04 | 2015-08-19 | 亿昇(天津)科技有限公司 | Centrifugal blower impeller additional device capable of automatically stabilizing air volume |
| CN206785720U (en) * | 2017-06-07 | 2017-12-22 | 江苏恒康机电有限公司 | A kind of Environmental-protecting dust-removing explosion-proof centrifugal fan |
| CN207671312U (en) * | 2017-11-23 | 2018-07-31 | 江苏中大生物科技集团有限公司 | A kind of wind speed adjustable type sodium alginate blower |
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| CN111997940A (en) * | 2020-09-27 | 2020-11-27 | 江苏恒康机电有限公司 | Centrifugal fan with adjustable bottom noise |
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