CN201461466U - Centrifugal blower with three impellers - Google Patents
Centrifugal blower with three impellers Download PDFInfo
- Publication number
- CN201461466U CN201461466U CN2009201177821U CN200920117782U CN201461466U CN 201461466 U CN201461466 U CN 201461466U CN 2009201177821 U CN2009201177821 U CN 2009201177821U CN 200920117782 U CN200920117782 U CN 200920117782U CN 201461466 U CN201461466 U CN 201461466U
- Authority
- CN
- China
- Prior art keywords
- wind chamber
- impeller
- casing
- centrifugal blower
- motor
- Prior art date
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to blower equipment used for indoor ventilation, in particular to a centrifugal blower with three impellers, which has good radiating effect and low noise and is used for a vibration test table. The centrifugal blower comprises a motor, a housing and an air cavity structure, wherein the housing adopts a detachable integral type cylindrical structure; the relatively independent volute-type air cavity structure is arranged in the housing, and is connected with outside through an air inlet and an air outlet; and the impeller set in the air cavity adopts the structure that two movable impellers are arranged at front and at back, and a fixed impeller is arranged in the middle. Compared with the prior centrifugal blower with one impeller, the implementation mode enables the centrifugal blower with three impellers to have less noise, which can be equal to or less than 85 db (A), under the driving of motors with same power. The rear part of the housing is a conical air cavity cover which enables the motor to have better passive radiation effect.
Description
Technical field
The utility model relates to a kind of room ventilation Fan Equipment, relates in particular to a kind of trilobed wheel centrifugal blower that radiating effect and low noise are provided for vibration mechine.
Background technique
The centrifugal blower equipment that designs for industrial use under the prior art, the monolithic impeller that links to each other with the motor driving shaft generally all only is installed in the casing, the centrifugal blower of this class formation is because this defective in its design, noise is very big during work, under this class Fan Equipment normal working under the prior art structure, noise mostly all is difficult to be controlled in the 85db (A), so the inapplicable place use that quiet degree is being had higher requirements.
The model utility content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art part, and it is little to propose a kind of operating noise, and motor is had the low noise centrifugal blower of better heat dissipation effect.
The utility model achieves the goal by following measure:
A kind of trilobed wheel centrifugal blower comprises motor, casing, wind cavity configuration, and motor is positioned at the casing structure rear positions; Casing is removable monolithic cylinder shape structure, comprises that the intake grill of front end, the exhaust outlet on top are exposed to outside the casing; In the casing is relatively independent scroll casing type structure wind chamber, this wind chamber is connected with exhaust outlet by intake grill with outside, axle bed in the wind chamber is fixedly connected on the taper wind chamber cover at rear portion, wind chamber by rack rod, this taper wind chamber cover is fixed with the airtight welding of columnar casing, impeller sets in the wind chamber, be followed successively by from front to back multiple-airfoil type preceding impeller, decide impeller and back impeller, the three is coaxial to be connected on the driving shaft, wherein decides impeller extension and casing inner wall is airtight fixes on one side; Blower fan driving shaft outside in outside, wind chamber is cylindrical shape porous metals heat dissipating housings; Base support is positioned at the casing bottom and the face integral solder of being in contact with it is fixed.
Impeller sets in the described wind chamber, adopt former and later two movable vane wheels, one of centre to decide impeller, before impeller with the back impeller coaxial be connected and driving shaft on by driven by motor work, decide impeller and play rectified action, such mode of execution is under the driven by motor with constant power, little more a lot of than existing single impeller centrifugal blower noise, can reach≤85db (A).
In the described wind chamber, the mode of having only intake grill extension and casing barrel to twist by screw cap is fixedlyed connected, miscellaneous part comprise decide impeller, axle bed and taper wind chamber cover all is connected with casing connect airtight, reduced to a great extent in the centrifugal blower work since the resonance of parts such as casing produce than noise greatly.
The taper wind chamber at rear portion, described wind chamber cover because it is horn-like to be outer opening, when extraneous natural wind when motor blows, can preferably wind be gathered this taper wind chamber and cover medium position, thereby make the effect of the passive heat radiation of motor better.
Description of drawings
Fig. 1 is the utility model casing cross-sectional view
Among the figure 1, motor, 2, casing, 3, the wind chamber, 4, taper wind chamber cover, 5, heat dissipating housing, 6, intake grill, 7, exhaust outlet, 8, axle bed, 9, preceding impeller, 10, decide impeller, 11, back impeller, 12, base support, 13, rack rod.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail:
Fig. 1 has shown specific embodiment of the utility model.
A kind of trilobed wheel centrifugal blower comprises motor (1), casing (2), wind chamber (3) structure, and motor (1) is positioned at casing (2) rear positions; Casing (2) is removable monolithic cylinder shape structure, comprises that the intake grill (6) of front end, the exhaust outlet (7) on top are exposed to outside the casing (2); In the casing (2) is relatively independent scroll casing type structure wind chamber (3), this wind chamber (3) is connected with exhaust outlet (7) by intake grill (6) with outside, axle bed in the wind chamber (3) is fixedly connected on the taper wind chamber cover (4) at rear portion, wind chamber by rack rod (13), this taper wind chamber cover (4) is fixed with the airtight welding of columnar casing (2), there is impeller sets in the wind chamber in (3), be followed successively by the preceding impeller (9) of multiple-airfoil type from front to back, decide impeller (10) and back impeller (11), the three is coaxial to be connected on the driving shaft, and it is airtight fixing wherein to decide impeller (10) one side extension and casing (2) circle tube inner wall; The blower fan driving shaft outside outside in wind chamber (3) is cylindrical shape porous metals heat dissipating housing (5); Base support (12) is positioned at casing (2) bottom and the face integral solder of being in contact with it is fixed.
The trilobed wheel centrifugal blower of present embodiment, impeller sets in the described wind chamber (3), produce with former and later two movable vane wheels, one of centre and decide impeller, before impeller (9) and back impeller (11) coaxial be connected with driving shaft on by motor (1) drive work, decide impeller (10) be positioned at two movable vanes take turns middle, rotation work not, play rectified action, such mode of execution is under with the motor drives under the constant power, and is little more a lot of than existing single impeller centrifugal blower noise, can reach≤85db (A).
In the described wind chamber (3), the mode of having only intake grill (6) extension and casing (2) barrel to twist by screw cap is fixedlyed connected, miscellaneous part comprise decide impeller (10), axle bed (8) and taper wind chamber cover (4) all is connected with casing airtight, reduced to a great extent in the centrifugal blower work since the resonance of parts such as casing produce than noise greatly.
The taper wind chamber cover (4) at rear portion, described wind chamber (3) is because it is horn-like to be outer opening, when extraneous natural wind, can gather wind this taper wind chamber cover medium position preferably, thereby make the effect of the passive heat radiation of motor (1) better when blowing towards motor (1).
Claims (4)
1. a trilobed wheel centrifugal blower is characterized in that comprising motor (1), casing (2), wind chamber (3) structure, and motor (1) is positioned at casing (2) rear positions; Casing (2) is removable monolithic cylinder shape structure, comprises that the intake grill (6) of front end, the exhaust outlet (7) on top are exposed to outside the casing (2); In the casing (2) is relatively independent scroll casing type structure wind chamber (3), this wind chamber (3) is connected with exhaust outlet (7) by intake grill (6) with outside, axle bed in the wind chamber (3) is fixedly connected on the taper wind chamber cover (4) at rear portion, wind chamber by rack rod (13), this taper wind chamber cover (4) is fixed with the airtight welding of columnar casing (2), there is impeller sets in the wind chamber in (3), be followed successively by the preceding impeller (9) of multiple-airfoil type from front to back, decide impeller (10) and back impeller (11), the three is coaxial to be connected on the driving shaft, and it is airtight fixing wherein to decide impeller (10) one side extension and casing (2) circle tube inner wall; The blower fan driving shaft outside outside in wind chamber (3) is cylindrical shape porous metals heat dissipating housing (5); Base support (12) is positioned at casing (2) bottom and the face integral solder of being in contact with it is fixed.
2. according to claims 1 described a kind of trilobed wheel centrifugal blower, it is characterized in that, impeller sets in the described wind chamber (3), adopt former and later two movable vane wheels, one of centre to decide impeller, before impeller (9) with the back impeller (11) coaxial be connected and driving shaft on by motor (1) drive work, decide impeller (10) and be positioned in the middle of two movable vane wheels, rotation work does not play rectified action.
3. according to claims 1 described a kind of trilobed wheel centrifugal blower, it is characterized in that, in the described wind chamber (3), the mode of having only intake grill (6) extension and casing (2) barrel to twist by screw cap is fixedlyed connected, and miscellaneous part comprises that deciding impeller (10), axle bed (8) and taper wind chamber cover (4) all is connected airtight with casing.
4. according to claims 1 described a kind of trilobed wheel centrifugal blower, it is characterized in that, the taper wind chamber cover (4) at rear portion, described wind chamber (3), it is horn-like to be outer opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201177821U CN201461466U (en) | 2009-04-20 | 2009-04-20 | Centrifugal blower with three impellers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201177821U CN201461466U (en) | 2009-04-20 | 2009-04-20 | Centrifugal blower with three impellers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201461466U true CN201461466U (en) | 2010-05-12 |
Family
ID=42388820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201177821U Expired - Fee Related CN201461466U (en) | 2009-04-20 | 2009-04-20 | Centrifugal blower with three impellers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201461466U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562657A (en) * | 2012-02-29 | 2012-07-11 | 苏州首信电机有限公司 | Fan for direct-current motors |
| CN104154024A (en) * | 2014-08-20 | 2014-11-19 | 中国船舶重工集团公司第七0四研究所 | Test decoupling device for physical separation of excitation characteristics of centrifugal fan |
| CN104832439A (en) * | 2015-04-17 | 2015-08-12 | 林钧浩 | Annular-flow material-suction/discharge fan |
-
2009
- 2009-04-20 CN CN2009201177821U patent/CN201461466U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562657A (en) * | 2012-02-29 | 2012-07-11 | 苏州首信电机有限公司 | Fan for direct-current motors |
| CN104154024A (en) * | 2014-08-20 | 2014-11-19 | 中国船舶重工集团公司第七0四研究所 | Test decoupling device for physical separation of excitation characteristics of centrifugal fan |
| CN104832439A (en) * | 2015-04-17 | 2015-08-12 | 林钧浩 | Annular-flow material-suction/discharge fan |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201461466U (en) | Centrifugal blower with three impellers | |
| CN201461468U (en) | Pipeline type double-impeller axial flow fan specially for kitchen | |
| CN202579350U (en) | Mixed-flow fire-fighting smoke discharge ventilator | |
| CN201013672Y (en) | Refrigerating mechanism used for double stage axial-flow draught fan | |
| CN203130551U (en) | Centrifugal fan | |
| CN203398941U (en) | Dust collector motor | |
| CN203146367U (en) | Three-impeller centrifugal fan | |
| CN201335528Y (en) | Industrial air heater | |
| CN103629156B (en) | A kind of central air conditioner outdoor unit but axial-flow blower of low-noise high-efficiency | |
| CN203009334U (en) | Internal recycling centrifugal fan for cooler of wind-driven generator | |
| CN207161361U (en) | A kind of direct current brushless motor | |
| CN207906165U (en) | A kind of quick release large fan denoising device | |
| CN203023118U (en) | Impeller combined type double-wind-wheel draught fan | |
| CN207830168U (en) | Energy-saving axial flow wind turbine external member | |
| CN202867334U (en) | Draught fan air inlet device | |
| CN218377023U (en) | Impeller of centrifugal heat radiation fan | |
| CN201513360U (en) | Cooling fan of locomotive filter reactor | |
| CN201206569Y (en) | Draught fan | |
| CN201152572Y (en) | Cooking fume exhauster with double windwheel | |
| CN216044513U (en) | Centrifugal blower atmoseal structure | |
| CN201671889U (en) | Connecting device for centrifugal fan and frequency conversion motor | |
| CN202579241U (en) | High-efficiency energy-saving mixed-flow type ventilator | |
| CN219953733U (en) | Integrated wind wheel | |
| CN210949214U (en) | Small brushless direct-current variable-frequency centrifugal blower | |
| CN215830757U (en) | Energy-saving blower for gas boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20120420 |