CN113107884A - High-efficiency energy-saving centrifugal ventilator - Google Patents
High-efficiency energy-saving centrifugal ventilator Download PDFInfo
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- CN113107884A CN113107884A CN202110311584.4A CN202110311584A CN113107884A CN 113107884 A CN113107884 A CN 113107884A CN 202110311584 A CN202110311584 A CN 202110311584A CN 113107884 A CN113107884 A CN 113107884A
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- Prior art keywords
- impeller
- welded fastening
- air intake
- subassembly
- plate
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- 230000005540 biological transmission Effects 0.000 claims abstract description 42
- 229910000831 Steel Inorganic materials 0.000 claims description 25
- 239000010959 steel Substances 0.000 claims description 25
- 230000003014 reinforcing effect Effects 0.000 claims description 14
- 210000003205 muscle Anatomy 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000009423 ventilation Methods 0.000 description 5
- 238000005381 potential energy Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction 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
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—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
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of centrifugal ventilators, in particular to a high-efficiency energy-saving centrifugal ventilator, which comprises a bottom frame and a transmission assembly; the chassis frame upper end is fixed and is provided with the bracket component, the fixed organic shell subassembly that sets up in bracket component one side, bracket component upper end and drive assembly fixed connection, the inside rotation of casing subassembly is provided with the impeller subassembly, through the setting of blade, blade in the impeller is the back, the windward side of blade rotates along the wind direction, make wind noise littleer, it is big to have the amount of wind, the noise is little, resonance is little, characteristics such as power consumption is little, through the setting of impeller subassembly, make this impeller subassembly in installation test run, its performance improves twenty percent with traditional impeller test run performance, in addition, in the contrast of same model test run, the speed ratio of installing this impeller is lower with the speed ratio of installing traditional impeller, make this device can be better play energy-efficient effect.
Description
Technical Field
The invention relates to the technical field of color steel plate installation and processing, in particular to a high-efficiency energy-saving centrifugal ventilator.
Background
The centrifugal ventilator is a machine which increases the gas pressure and discharges the gas by means of the input mechanical energy, and is a driven fluid machine, and is applied to ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; the centrifugal ventilator is based on the principle that kinetic energy is converted into potential energy, accelerates gas by utilizing an impeller rotating at a high speed, then decelerates and changes the flow direction, so that the kinetic energy is converted into the potential energy, and the centrifugal ventilator comprises a shell, a main shaft, the impeller, a bearing transmission mechanism, a motor and the like, but the existing centrifugal ventilator still has certain problems;
because the impeller in the existing centrifugal ventilator can not well convert kinetic energy into potential energy in the working process, the ventilation efficiency is low, and the high-efficiency energy-saving effect can not be well achieved.
Disclosure of Invention
The invention aims to provide an efficient energy-saving centrifugal fan to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an efficient energy-saving centrifugal ventilator comprises a bottom frame and a transmission assembly; underframe frame upper end is provided with the bracket component, bracket component lower extreme surface and underframe frame upper end surface welded fastening, bracket component one side is provided with the casing subassembly, casing subassembly lower extreme surface and underframe frame upper end surface welded fastening, bracket component upper end and drive assembly fixed connection, the inside impeller subassembly that is provided with of casing subassembly, the impeller subassembly rotates with drive assembly to be connected.
Preferably, the bottom frame comprises a channel steel base and a channel steel opening rib plate, one side of the channel steel opening rib plate is welded and fixed with the inner side of the channel steel base, a motor fixing plate is arranged at the upper end of the channel steel base, and the surface of the lower end of the motor fixing plate is welded and fixed with the surface of the upper end of the channel steel base.
Preferably, the transmission assembly comprises a protective belt cover and a motor, a fastening bolt penetrates through the interior of the lower end of the motor, the lower end of the motor is fixedly connected with a motor fixing plate through the fastening bolt, a first transmission belt pulley is arranged on one side of the motor and fixedly connected with a rotating shaft in the motor through hole-shaft matching, and a second transmission belt pulley is arranged at the upper end of the first transmission belt pulley.
Preferably, it is provided with the high strength belt to rotate between first drive pulley and the second drive pulley, second drive pulley one side is provided with the bearing frame, the bearing frame passes through bolt and bracket component up end fixed connection, the inside transmission shaft that is provided with of axle center direction is followed to bearing frame and second drive pulley, the transmission shaft passes through hole axle cooperation and second drive pulley fixed connection, the transmission shaft passes through hole axle cooperation and is connected with the bearing frame rotation.
Preferably, the bracket component includes curb plate and panel, be provided with trapezoidal baffle between two sets of curb plates, trapezoidal baffle both sides all with the inboard welded fastening of curb plate, curb plate upper end and panel lower extreme welded fastening, the inside mounting hole that runs through of curb plate is provided with, the panel upper end is provided with the enhancement diagonal muscle, terminal surface and panel up end welded fastening under the enhancement diagonal muscle.
Preferably, the casing assembly comprises a rear side plate and a front side plate, one side of the rear side plate is welded and fixed with one side of the reinforcing inclined rib, a volute enclosing plate is arranged between the rear side plate and the front side plate, one side of the volute enclosing plate is welded and fixed with the other side of the rear side plate, the other side of the volute enclosing plate is welded and fixed with one side of the front side plate, an air outlet flange is arranged at the upper end of the volute enclosing plate, and the upper end of the volute enclosing plate is welded and fixed with the lower end.
Preferably, the impeller assembly comprises blades and a chassis, one end of each blade is welded and fixed with one end of the chassis, the other end of each blade is provided with a front disc, and one end of each front disc is welded and fixed with the other end of each blade.
Preferably, chassis one end is provided with the reel, the inside screw that excels in that runs through of reel one end is provided with, the reel passes through screw and chassis fixed connection that excels in, just the reel passes through hole axle cooperation and transmission shaft one end fixed connection, be provided with the enhancement center disk between the blade, strengthen center disk and inboard welded fastening of blade.
Preferably, impeller assembly still includes air intake group, the air intake is organized one end and is left the clearance with the preceding dish other end, the clearance between air intake group and the preceding dish is less than 10mm, just air intake group appearance profile is the toper horn mouth, the air intake is organized the other end and is provided with the air intake flange, fixed being provided with between air intake group and the air intake flange increases the board, increase board one side and air intake group other end welded fastening, increase board opposite side and air intake flange one end welded fastening.
Preferably, the shaft disc, the bearing seat and the second transmission belt pulley are connected in a penetrating mode along the axial center line of the transmission shaft, and the rear side plate is fixedly connected with the panel through a reinforcing inclined rib.
Compared with the prior art, the invention has the beneficial effects that:
1. through the setting of blade, blade in the impeller is the backward, the windward side of blade rotates along the wind direction, make the wind noise littleer, it is big to have the amount of wind, the noise is little, resonance is little, characteristics such as electric energy loss is little, setting through impeller subassembly, make this impeller subassembly in the installation trial run, its performance improves twenty percent with traditional impeller trial run performance, in addition, in the same model trial run contrast, the speed ratio of installing this impeller is lower with the speed ratio of installing traditional impeller, make ventilation efficiency higher.
2. Through the setting of air intake group, the air intake adopts the circular arc formula design, and is more succinct pleasing to the eye with traditional air intake design, and is more reasonable with impeller clearance fit for ventilation efficiency and skill effect are better.
3. Through the setting of casing subassembly, the casing subassembly adopts approximate archimedes spiral design, has characteristics such as small, the design is compact, pleasing to the eye durable.
4. Through the arrangement of the reinforcing inclined ribs, the connection between the bracket component and the shell component is more stable.
Drawings
FIG. 1 is a schematic view of the overall front view connection structure of the present invention;
FIG. 2 is a schematic view of the overall side-view connection structure of the present invention;
FIG. 3 is a schematic view of the connecting structure of the bottom frame, the transmission assembly and the support assembly of the present invention;
FIG. 4 is a side view of the coupling structure of the transmission assembly of the present invention;
FIG. 5 is a schematic view of the impeller assembly attachment structure of the present invention;
FIG. 6 is a schematic view of the connection structure of the blade, the chassis, the shaft disc, the front disc and the reinforcing middle disc of the present invention;
FIG. 7 is a schematic view of an air inlet assembly according to the present invention;
FIG. 8 is an enlarged view of the structure at A in FIG. 5 according to the present invention.
In the figure: 1. a bottom frame; 11. a channel steel base; 12. a channel steel opening rib plate; 13. a motor fixing plate;
2. a transmission assembly; 21. a protective belt cover; 22. a motor; 23. a first drive pulley; 24. a second drive pulley; 25. a high-strength belt; 26. a bearing seat; 27. a drive shaft; 28. fastening a bolt;
3. a bracket assembly; 31. a side plate; 32. a panel; 33. a trapezoidal baffle; 34. mounting holes; 35. reinforcing the inclined ribs;
4. a housing assembly; 41. a rear side plate; 42. a front side plate; 43. a volute casing coaming; 44. an air outlet flange;
5. an impeller assembly; 51. a blade; 52. a chassis; 53. a reel; 54. a high-strength screw; 55. a front plate; 56. an air inlet group; 57. an air inlet flange; 58. heightening a plate; 59. and (4) reinforcing the middle disc.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-8, there are shown: the structure schematic diagram of the high-efficiency energy-saving centrifugal fan comprises a bottom frame 1 and a transmission assembly 2, wherein a support assembly 3 is arranged at the upper end of the bottom frame 1, the lower end surface of the support assembly 3 is fixedly welded with the upper end surface of the bottom frame 1, a casing assembly 4 is arranged on one side of the support assembly 3, the lower end surface of the casing assembly 4 is fixedly welded with the upper end surface of the bottom frame 1, the upper end of the support assembly 3 is fixedly connected with the transmission assembly 2, an impeller assembly 5 is arranged in the casing assembly 4, and the impeller assembly 5 is rotatably connected with the transmission assembly 2;
as shown in fig. 1-4, the bottom frame 1 includes a channel steel base 11 and a channel steel opening rib plate 12, one side of the channel steel opening rib plate 12 is welded and fixed with the inner side of the channel steel base 11, a motor fixing plate 13 is arranged at the upper end of the channel steel base 11, the lower end surface of the motor fixing plate 13 is welded and fixed with the upper end surface of the channel steel base 11, and the channel steel base 11 is more stable in structure and the whole structure of the device is more firm due to the arrangement of the channel steel opening rib plate 12;
the transmission assembly 2 comprises a protective belt cover 21 and a motor 22, a fastening bolt 28 is arranged inside the lower end of the motor 22 in a penetrating mode, the lower end of the motor 22 is fixedly connected with a motor fixing plate 13 through the fastening bolt 28, a first transmission belt pulley 23 is arranged on one side of the motor 22, the first transmission belt pulley 23 is fixedly connected with a rotating shaft in the motor 22 through hole shaft matching, a second transmission belt pulley 24 is arranged at the upper end of the first transmission belt pulley 23, a high-strength belt 25 is arranged between the first transmission belt pulley 23 and the second transmission belt pulley 24 in a rotating mode, a bearing seat 26 is arranged on one side of the second transmission belt pulley 24, the bearing seat 26 is fixedly connected with the upper end face of the support assembly 3 through bolts, a transmission shaft 27 is arranged inside the shaft center direction of the bearing seat 26 and the second transmission belt pulley 24, and the transmission shaft 27 is fixedly connected with the second, the transmission shaft 27 is in fit with the bearing seat 26 through a hole shaft and is in rotating connection with the bearing seat 26, and the arrangement of the bearing seat 26 enables the impeller assembly 5 to work more stably and efficiently when the motor 22 drives the impeller assembly 5 to rotate;
the bracket component 3 comprises side plates 31 and a panel 32, a trapezoidal baffle 33 is arranged between the two groups of side plates, two sides of the trapezoidal baffle 33 are welded and fixed with the inner sides of the side plates 31, the upper end of the side plate 31 is welded and fixed with the lower end of the panel 32, a mounting hole 34 penetrates through the inside of the side plate 31, a reinforcing inclined rib 35 is arranged at the upper end of the panel 32, the lower end face of the reinforcing inclined rib 35 is welded and fixed with the upper end face of the panel 32, and the whole structure of the device is more stable through the arrangement of a reinforcing inclined rib 350;
the casing assembly 4 comprises a rear side plate 41 and a front side plate 42, one side of the rear side plate 41 is fixedly welded with one side of the reinforcing inclined rib 35, a volute enclosing plate 43 is arranged between the rear side plate 41 and the front side plate 42, one side of the volute enclosing plate 43 is fixedly welded with the other side of the rear side plate 41, the other side of the volute enclosing plate 43 is fixedly welded with one side of the front side plate 42, an air outlet flange 44 is arranged at the upper end of the volute enclosing plate 43, the upper end of the volute enclosing plate 43 is fixedly welded with the lower end of the air outlet flange 44, and the casing assembly 4 adopts an approximate Archimedes spiral line design through the arrangement of the casing assembly 4, so that the casing assembly 4 has the;
as shown in fig. 5 and 6, the impeller assembly 5 includes a blade 51 and a chassis 52, one end of the blade 51 is welded and fixed to one end of the chassis 52, the other end of the blade 51 is provided with a front disc 55, one end of the front disc 55 is welded and fixed to the other end of the blade 51, one end of the chassis 52 is provided with a shaft disc 53, a high-strength screw 54 penetrates through the inside of one end of the shaft disc 53, the shaft disc 53 is fixedly connected to the chassis 52 through the high-strength screw 54, the shaft disc 53 is fixedly connected to one end of a transmission shaft 27 through hole-shaft matching, a reinforcing middle disc 59 is arranged between the blades 51, the reinforcing middle disc 59 is welded and fixed to the inner side of the blade 51, and by arranging the blade 51, the blade 51 in the impeller is in the rear direction, the windward side of the blade 51 rotates along the wind direction, so that the wind noise is smaller, and the impeller assembly has the, the performance of the impeller component 5 is improved by twenty percent compared with the performance of the traditional impeller in the trial operation of the installation machine, and in addition, in the comparison of the trial operation with the same machine number, the rotating speed ratio of the installed impeller is lower than that of the installed traditional impeller;
as shown in fig. 7 and 8, the impeller assembly 5 further includes an air inlet group 56, a gap is formed between one end of the air inlet group 56 and the other end of the front disc 55, the gap between the air inlet group 56 and the front disc 55 is smaller than 10mm, the outline of the air inlet group 56 is a conical bell mouth, an air inlet flange 57 is arranged at the other end of the air inlet group 56, a heightening plate 58 is fixedly arranged between the air inlet group 56 and the air inlet flange 57, one side of the heightening plate 58 is welded and fixed with the other end of the air inlet group 56, the other side of the heightening plate 58 is welded and fixed with one end of the air inlet flange 57, and through the arrangement of the air inlet group 56, the air inlet adopts an arc design, and is simpler and more beautiful than;
in this embodiment, the channel-section steel base 11 is more stable in structure by the arrangement of the channel-section steel port rib plate 12, so that the whole structure of the device is more firm, when the motor 22 drives the impeller component 5 to rotate by the arrangement of the bearing seat 26, the impeller component 5 is more stable and works efficiently, the connection between the bracket component 3 and the casing component 4 is more stable by the arrangement of the reinforcing diagonal rib 350, the casing component 4 adopts the design of the approximate archimedes spiral line by the arrangement of the casing component 4, so that the device has the characteristics of small volume, compact design, attractive appearance, durability and the like, the air inlet is designed in an arc shape by the arrangement of the air inlet group 56, the air inlet is more concise and attractive in design with the traditional air inlet, the gap fit with the impeller is more reasonable, the blades 51 in the impeller are arranged in the backward direction, and the windward side of the, make wind noise littleer, it is big to have the amount of wind, and the noise is little, and resonance is little, characteristics such as electric energy loss is little, through impeller subassembly 5's setting, make this impeller subassembly 5 in installation trial run, its performance improves twenty percent with traditional impeller trial run performance, in addition, in the contrast of same model trial run, the rotational speed ratio of installing this impeller is lower with the rotational speed ratio of installing traditional impeller, makes this device ventilation efficiency high, and energy-conserving effect is showing.
While the invention has been described in further detail in connection with specific embodiments thereof, it will be understood that the invention is not limited thereto, and that various other modifications and substitutions may be made by those skilled in the art without departing from the spirit of the invention, which should be considered to be within the scope of the invention as defined by the appended claims.
Claims (10)
1. An efficient energy-saving centrifugal ventilator comprises a bottom frame (1) and a transmission assembly (2);
the method is characterized in that:
underframe frame (1) upper end is provided with bracket component (3), bracket component (3) lower terminal surface and underframe frame (1) upper end surface welded fastening, bracket component (3) one side sets up shell subassembly (4), shell subassembly (4) lower terminal surface and underframe frame (1) upper end surface welded fastening, bracket component (3) upper end and transmission assembly (2) fixed connection, the inside impeller subassembly (5) that is provided with of shell subassembly (4), impeller subassembly (5) rotate with transmission assembly (2) and are connected.
2. An energy efficient centrifugal fan as claimed in claim 1, wherein: underframe frame (1) includes channel-section steel base (11) and channel-section steel mouth gusset (12), channel-section steel mouth gusset (12) one side and channel-section steel base (11) inboard welded fastening, channel-section steel base (11) upper end is provided with motor fixing plate (13), motor fixing plate (13) lower extreme surface and channel-section steel base (11) upper end surface welded fastening.
3. An energy efficient centrifugal fan as claimed in claim 1, wherein: transmission assembly (2) are including safety belt cover (21) and motor (22), the inside fastening bolt (28) that runs through of motor (22) lower extreme, motor (22) lower extreme passes through fastening bolt (28) and motor fixed plate (13) fixed connection, motor (22) one side is provided with first driving pulley (23), first driving pulley (23) are through the pivot fixed connection in hole axle cooperation and motor (22), first driving pulley (23) upper end is provided with second driving pulley (24).
4. An energy efficient centrifugal fan as claimed in claim 3, wherein: rotate between first drive pulley (23) and second drive pulley (24) and be provided with high strength belt (25), second drive pulley (24) one side is provided with bearing frame (26), bearing frame (26) are through bolt and bracket component (3) up end fixed connection, bearing frame (26) and second drive pulley (24) are along the inside transmission shaft (27) that is provided with of axle center direction, transmission shaft (27) are through hole axle cooperation and second drive pulley (24) fixed connection, transmission shaft (27) are through hole axle cooperation and bearing frame (26) rotation connection.
5. An energy efficient centrifugal fan as claimed in claim 1, wherein: bracket component (3) are including curb plate (31) and panel (32), be provided with trapezoidal baffle (33) between two sets of curb plates, trapezoidal baffle (33) both sides all with curb plate (31) inboard welded fastening, curb plate (31) upper end and panel (32) lower extreme welded fastening, curb plate (31) inside runs through and is provided with mounting hole (34), panel (32) upper end is provided with strengthens diagonal muscle (35), strengthen terminal surface and panel (32) up end welded fastening under diagonal muscle (35).
6. An energy efficient centrifugal fan as claimed in claim 1, wherein: casing subassembly (4) include posterior lateral plate (41) and preceding lateral plate (42), posterior lateral plate (41) one side and enhancement diagonal rib (35) one side welded fastening, be provided with spiral case bounding wall (43) between posterior lateral plate (41) and preceding lateral plate (42), spiral case bounding wall (43) one side and posterior lateral plate (41) opposite side welded fastening, spiral case bounding wall (43) opposite side and preceding lateral plate (42) one side welded fastening, spiral case bounding wall (43) upper end is provided with air outlet flange (44), spiral case bounding wall (43) upper end and air outlet flange (44) lower extreme welded fastening.
7. An energy efficient centrifugal fan as claimed in claim 1, wherein: the impeller assembly (5) comprises blades (51) and a chassis (52), one ends of the blades (51) are welded and fixed with one end of the chassis (52), a front disc (55) is arranged at the other end of the blades (51), and one end of the front disc (55) is welded and fixed with the other end of the blades (51).
8. An energy efficient centrifugal fan as claimed in claim 7, wherein: chassis (52) one end is provided with reel (53), the inside screw (54) that excels in that runs through of reel (53) one end is provided with, reel (53) are through screw (54) and chassis (52) fixed connection that excels in, just reel (53) are through hole axle cooperation and transmission shaft (27) one end fixed connection, be provided with between blade (51) and strengthen well dish (59), strengthen well dish (59) and blade (51) inboard welded fastening.
9. An energy efficient centrifugal fan as claimed in claim 7, wherein: impeller subassembly (5) still include air intake group (56), air intake group (56) one end leaves the clearance with preceding dish (55) other end, air intake group (56) and preceding dish (55) between the clearance be less than 10mm, just air intake group (56) appearance profile is the toper horn mouth, air intake group (56) other end is provided with air intake flange (57), fixed increase board (58) of being provided with between air intake group (56) and air intake flange (57), increase board (58) one side and air intake group (56) other end welded fastening, increase board (58) opposite side and air intake flange (57) one end welded fastening.
10. An energy efficient centrifugal fan as claimed in any one of claims 1 to 9 wherein: the shaft disc (53), the bearing seat (26) and the second transmission belt pulley (24) are all connected in a penetrating mode along the axial center line of the transmission shaft (27), and the rear side plate (41) is fixedly connected with the panel (32) through a reinforcing inclined rib (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110311584.4A CN113107884A (en) | 2021-03-24 | 2021-03-24 | High-efficiency energy-saving centrifugal ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110311584.4A CN113107884A (en) | 2021-03-24 | 2021-03-24 | High-efficiency energy-saving centrifugal ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113107884A true CN113107884A (en) | 2021-07-13 |
Family
ID=76710532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110311584.4A Pending CN113107884A (en) | 2021-03-24 | 2021-03-24 | High-efficiency energy-saving centrifugal ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113107884A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202284563U (en) * | 2011-10-31 | 2012-06-27 | 南方风机股份有限公司 | Vertical centrifugal fan special for kiln |
| CN202326461U (en) * | 2011-11-18 | 2012-07-11 | 株洲联诚集团有限责任公司 | Cooling fan of pulling motor for motor train unit |
| CN205478381U (en) * | 2015-12-30 | 2016-08-17 | 镇江市丹徒区粮机厂有限公司 | Super low -temperature vacuum fan |
| JP2016151204A (en) * | 2015-02-17 | 2016-08-22 | テラル株式会社 | Blower |
| CN206368840U (en) * | 2017-01-06 | 2017-08-01 | 台州四合风机有限公司 | A kind of technical grade horizontal type centrifugal blower |
| CN111779685A (en) * | 2020-05-29 | 2020-10-16 | 广东粤鑫科技有限公司 | High-efficient centrifugal fan |
-
2021
- 2021-03-24 CN CN202110311584.4A patent/CN113107884A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202284563U (en) * | 2011-10-31 | 2012-06-27 | 南方风机股份有限公司 | Vertical centrifugal fan special for kiln |
| CN202326461U (en) * | 2011-11-18 | 2012-07-11 | 株洲联诚集团有限责任公司 | Cooling fan of pulling motor for motor train unit |
| JP2016151204A (en) * | 2015-02-17 | 2016-08-22 | テラル株式会社 | Blower |
| CN205478381U (en) * | 2015-12-30 | 2016-08-17 | 镇江市丹徒区粮机厂有限公司 | Super low -temperature vacuum fan |
| CN206368840U (en) * | 2017-01-06 | 2017-08-01 | 台州四合风机有限公司 | A kind of technical grade horizontal type centrifugal blower |
| CN111779685A (en) * | 2020-05-29 | 2020-10-16 | 广东粤鑫科技有限公司 | High-efficient centrifugal fan |
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Application publication date: 20210713 |
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| RJ01 | Rejection of invention patent application after publication |