CN201443527U - Energy-saving silencing centrifugal fan - Google Patents
Energy-saving silencing centrifugal fan Download PDFInfo
- Publication number
- CN201443527U CN201443527U CN2009200144534U CN200920014453U CN201443527U CN 201443527 U CN201443527 U CN 201443527U CN 2009200144534 U CN2009200144534 U CN 2009200144534U CN 200920014453 U CN200920014453 U CN 200920014453U CN 201443527 U CN201443527 U CN 201443527U
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- motor
- centrifugal
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- silencing
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Abstract
An energy-saving silencing centrifugal fan comprises a case, a centrifugal impeller, a volute tongue and a motor, wherein the case is equipped with an air inlet and an air outlet. The energy-saving silencing centrifugal fan is characterized in that a real panel of the centrifugal impeller is provided with ventilating forward-curved blades, the motor is connected to the case via a motor bracket and a tray component, a joint of the motor and the motor bracket and a joint of the tray component and the case are both provided with elastic cushion layers, the motor bracket 8 is provided with an air intake passage, the inner side of walls of the case, a front cover of the case and the tray component are all equipped with silencing orifice plates and silencing material layers, and the air outlet is arranged in an axial direction perpendicular to radial exhaust direction of the centrifugal impeller. The energy-saving silencing centrifugal fan has the advantages that the real panel of the centrifugal fan impeller is provided with the ventilating forward-curved blades to form an air flowing system for air cooling of motor shaft ends, and then service life of the fan is prolonged; as the joint of the motor and the motor bracket and the joint of the tray component and the case are all provided with the elastic cushion layers, resonance radiation noises caused by motor vibration and vibration generated from impeller balance deflection are reduced obviously; the silencing structure arranged on the inner side of the walls of the case and a right-angle silencing structure of an exhaust duct can not only meet usability but reduce noise significantly and effectively; and the energy-saving silencing centrifugal fan is high in mechanical efficiency because the structural fan is expanded to NO.12.5 while the maximum number of direct-coupled fans of centrifugal fans at the existing market is NO.5 only.
Description
Technical field
The utility model belongs to a kind of centrifugal blower, particularly a kind of energy-saving muffling centrifugal fan.
Background technique
The present centrifugal blower that provides on the market, expose some shortcoming and defect through using practice: 1, its structural design can not form the cooling-down effect to motor shaft end, directly influences blower fan working life.Simultaneously, the vibration that the vibration of motor operation and impeller balance deviation produce causes bigger resonance radiation noise.2, existing centrifugal blower noise countermeasure is to add silencing plate or change air intake structure at fan casing, thereby the noise elimination effect is not very desirable.
The model utility content
The purpose of this utility model provides a kind of energy-saving muffling centrifugal fan, realizes the motor shaft end wind cooling temperature lowering, improves blower fan working life.Significantly reduce the blower fan running and produce the resonance radiation noise, it is effective to eliminate the noise.
The purpose of this utility model is achieved by the following technical solution: it comprises cabinet, centrifugal impeller, snail tongue, the motor of bringing air port and exhaust outlet into, and it is characterized in that: the hub disk of centrifugal impeller is provided with the ventilation forward curved vane; Motor is connected on the cabinet by electric machine support and pallet component, and the joint of the joint of motor and electric machine support, pallet component and cabinet all is provided with elastic insert; Electric machine support 8 is provided with air intake passage; Cabinet wall inboard is provided with noise elimination perforated plate and muffler material layer, and exhaust outlet is arranged on and centrifugal impeller radially on the perpendicular axial direction of air draft.
The utility model compared with prior art has following advantage: 1, be provided with the ventilation forward curved vane at the centrifugal blower fan blade wheel hub disk, form give the gas flow system of motor shaft end wind cooling temperature lowering, improved blower fan working life.2, the joint of motor and electric machine support, pallet component and cabinet all is provided with elastic insert, significantly reduces because motor oscillating vibrates with the generation of impeller balance deviation and causes the resonance radiation noise.3, cabinet wall inboard is provided with the right angle noise elimination structure of noise elimination structure and air exhaust channel, not only satisfies usability but also significantly effectively reduced noise.4, the maximum plane No. of existing market centrifugal blower direct connection blower fan is NO.5, and the utility model can diffuse into NO.12.5 with the structure blower fan, the mechanical efficiency height.
Description of drawings
Fig. 1 is a structure sectional view of the present utility model.
Fig. 2 is the I portion enlarged diagram of Fig. 1.
Fig. 3 is the II portion enlarged diagram of Fig. 1.
Fig. 4 is the front schematic view of electric machine support.
Fig. 5 is the right elevation of Fig. 4.
Fig. 6 is the A-A sectional view (the rigging position signal of centrifugal impeller and snail tongue) of Fig. 1.
Fig. 7 is provided with ventilation forward curved vane schematic representation on the hub disk.
Embodiment
See Fig. 1-7, concrete structure of the present utility model is as follows: the shell 3 of cabinet wall is a galvanized sheet, and cabinet wall interior surface layers 4 is the noise elimination perforated plate, is nonwovens 5 in interior surface layers 4 inboards.Between shell 3 and interior surface layers 4 muffler material layer 6 is set, muffler material layer 6 is selected super glass wool for use.The front end of cabinet is provided with protecgulum 1, and protecgulum 1 adopts the noise elimination structure of noise elimination structure with the cabinet wall: i.e. the interior surface layers of the shell of galvanized sheet, noise elimination perforated plate is provided with the muffler material layer between the two.The front end of cabinet is provided with intake grill, assembling centrifugal impeller 12 in the intake grill, and the hub disk 2 of centrifugal impeller 12 is provided with ventilation forward curved vane 11, and centrifugal impeller 12 is assembled on the motor output shaft.Motor 9 is connected on the electric machine support 8, and motor 9 is provided with elastic insert 14 with the joint of electric machine support 8, and electric machine support 8 has air intake passage, (seeing the indicating arrow among Fig. 1).Electric machine support 8 is connected on the pallet component 7, and pallet component 7 adopts sheet metal to make, and the steel-sheet front side is provided with the muffler material layer and the noise elimination perforated plate of nonwovens, super glass wool composition.Pallet component 7 is provided with elastic insert 15 with cabinet wall joint.Downside at centrifugal impeller 12 is provided with snail tongue 13, and snail tongue 13 and centrifugal impeller 12 approaching ends are provided with air-flow guiding arcuate segment R (see figure 6), make the air-flow that passes through more smooth and easy.The rear end of cabinet is provided with rain cover 10 and exhaust outlet, and exhaust outlet is arranged on and centrifugal impeller radially on the perpendicular axial direction of air draft.When gas axially enters along suction port, by the centrifugal impeller silencing plate of the direct directive cabinet of air-out inwall radially.The air-out passage of eliminating the noise vertically is through the exhaust outlet air-out again.Can effectively reduce fan noise.
The ratio of the thickness H2 of pallet component 7 silencing plate thickness H1 and electric machine support 8: H1/H2 is 4.3～4.8.It can satisfy the air inlet of electric machine support 8, can determine the thickness of pallet component 7 best silencing plates again.
Claims (3)
1. energy-saving muffling centrifugal fan, it comprises cabinet, centrifugal impeller, snail tongue, the motor of bringing air port and exhaust outlet into, it is characterized in that: the hub disk of centrifugal impeller is provided with the ventilation forward curved vane; Motor is connected on the cabinet by electric machine support and pallet component, and the joint of the joint of motor and electric machine support, pallet component and cabinet all is provided with elastic insert; Electric machine support (8) is provided with air intake passage; Cabinet wall inboard, protecgulum and pallet component all are provided with noise elimination perforated plate and muffler material layer, and exhaust outlet is arranged on and centrifugal impeller radially on the perpendicular axial direction of air draft.
2. energy-saving muffling centrifugal fan according to claim 1 is characterized in that: the ratio of the thickness H2 of pallet component silencing plate thickness H1 and electric machine support: H1/H2 is 4.3～4.8.
3. energy-saving muffling centrifugal fan according to claim 1 is characterized in that: the approaching end of snail tongue and centrifugal impeller is provided with air-flow guiding arcuate segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200144534U CN201443527U (en) | 2009-06-09 | 2009-06-09 | Energy-saving silencing centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200144534U CN201443527U (en) | 2009-06-09 | 2009-06-09 | Energy-saving silencing centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201443527U true CN201443527U (en) | 2010-04-28 |
Family
ID=42548204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200144534U Expired - Fee Related CN201443527U (en) | 2009-06-09 | 2009-06-09 | Energy-saving silencing centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201443527U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588335A (en) * | 2012-03-07 | 2012-07-18 | 林钧浩 | Energy-saving draught fan with high temperature resistance and double effect |
| CN103321919A (en) * | 2012-03-22 | 2013-09-25 | 南通大通宝富风机有限公司 | Heat dissipation type centrifugal fan |
| CN103644147A (en) * | 2013-12-27 | 2014-03-19 | 山西巨龙风机有限公司 | Sound reducing box of single-stage high-speed blower |
| CN107355397A (en) * | 2017-07-10 | 2017-11-17 | 加丁（天津）科技有限公司 | A kind of low noise centrifugal fan, air cleaning unit for being provided with noise-reducing acoustic liner |
| WO2019033445A1 (en) * | 2017-08-15 | 2019-02-21 | 圣明 | Centrifugal water-cooled air cabinet |
| BE1027145B1 (en) * | 2019-03-25 | 2020-10-27 | Amotec Nv | ROTOR FOR AN INDUSTRIAL FAN |
-
2009
- 2009-06-09 CN CN2009200144534U patent/CN201443527U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588335A (en) * | 2012-03-07 | 2012-07-18 | 林钧浩 | Energy-saving draught fan with high temperature resistance and double effect |
| CN102588335B (en) * | 2012-03-07 | 2014-12-10 | 林钧浩 | Energy-saving draught fan with high temperature resistance and double effect |
| CN103321919A (en) * | 2012-03-22 | 2013-09-25 | 南通大通宝富风机有限公司 | Heat dissipation type centrifugal fan |
| CN103644147A (en) * | 2013-12-27 | 2014-03-19 | 山西巨龙风机有限公司 | Sound reducing box of single-stage high-speed blower |
| CN107355397A (en) * | 2017-07-10 | 2017-11-17 | 加丁（天津）科技有限公司 | A kind of low noise centrifugal fan, air cleaning unit for being provided with noise-reducing acoustic liner |
| CN107355397B (en) * | 2017-07-10 | 2024-05-31 | 三羊(北京)文化有限公司 | Low-noise centrifugal ventilator with noise-reducing liner and air purifying device |
| WO2019033445A1 (en) * | 2017-08-15 | 2019-02-21 | 圣明 | Centrifugal water-cooled air cabinet |
| BE1027145B1 (en) * | 2019-03-25 | 2020-10-27 | Amotec Nv | ROTOR FOR AN INDUSTRIAL FAN |
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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: 20100428 Termination date: 20100609 |