CN107965471A - A kind of current collector and application have the centrifugal blower of the current collector - Google Patents
A kind of current collector and application have the centrifugal blower of the current collector Download PDFInfo
- Publication number
- CN107965471A CN107965471A CN201710318907.6A CN201710318907A CN107965471A CN 107965471 A CN107965471 A CN 107965471A CN 201710318907 A CN201710318907 A CN 201710318907A CN 107965471 A CN107965471 A CN 107965471A
- Authority
- CN
- China
- Prior art keywords
- wind
- guiding face
- current collector
- guiding
- air inlet
- 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.)
- Granted
Links
- 239000000779 smoke Substances 0.000 abstract description 9
- 238000010411 cooking Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000003517 fume Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010000234 Abortion spontaneous Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000006233 lamp black Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 208000015994 miscarriage Diseases 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 208000000995 spontaneous abortion Diseases 0.000 description 1
Classifications
-
- 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
-
- 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
- F04D29/663—Sound attenuation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of current collector, including wind-guiding face and stationary plane, stationary plane is in annular shape, wind-guiding face includes the radial direction wind-guiding face for diametrically extending certain distance from the radially inner side of stationary plane, and extend the axial wind-guiding face of certain distance in the axial direction from the radially inner side of radial direction wind-guiding face, be formed as air inlet among wind-guiding face, axial wind-guiding face has a first end and a second end in the circumferential, axial wind-guiding face is in the first straight wind-guiding section and the second arc-shaped wind-guiding section respectively between the first end and a second end, first wind-guiding section and the second wind-guiding section form the ring-type of closing.Also disclosing a kind of application has the centrifugal blower of current collector as described above.By the crosscutting one section of straight line of current collector air inlet, and crosscutting position is close to the volute tongue of spiral case, so that air inlet is reduced at volute tongue, flowing space increase at volute tongue at the same time, so reduce the oil smoke air-flow that participation is badly flowed at volute tongue, while the space increased adds cushion space for the impact of oil smoke air-flow.
Description
Technical field
The present invention relates to a kind of range hood, especially a kind of centrifugal blower for range hood, and for this from
The current collector of heart wind turbine.
Background technology
Domestic cooking fume remover is realized using centrifugal blower to be extracted oil laden air out kitchen and is discharged into common flue or direct
Discharge is outdoor, to improve air inflow condition, improves blower fan work efficiency, reduces noise, usually sets a collection in fan inlet
Device is flowed, the effect of current collector is by the smooth guide vane wheel of fluid.Fan performance can be effectively improved using current collector, at this moment wind turbine
Flow is larger, is operated under the conditions of design conditions, and level of noise is relatively low.
Since the common centrifugal blower type of range hood is more winged petiole centrifugal blowers, its spiral case is asymmetric logarithm spiral shell
Spin line shape, therefore Scroll's flow field is also mal-distribution.General current collector is designed as the symmetric shape of circular turned class, such as
A kind of multiple wing type centrifugal blower fan with Multifunctional flow-guiding device disclosed in the Chinese patent of Application No. 201110432232.0,
It is made of Multifunctional flow-guiding device with fan main body, Multifunctional flow-guiding device includes current collector and air deflector, by current collector
Installation side and fan main body realize installation connection；It is and for example a kind of disclosed in the Chinese patent of Application No. 201220095994.6
Centrifugal lampblack purification fan, including the spiral case with air inlet and air outlet, are placed in spiral case side corresponding to air inlet
Air inlet current collector, spiral case are the log spiral spiral case of equilateral basic circle method, and inlet air current collector is set for arc, it is accordingly installed
In on spiral case front side board；A kind of and for example mist extractor silence type hypsokinesis disclosed in the Chinese patent of Application No. 201520298482.3
Centrifugal fan of cabinet type, main to include wind turbine and frame, frame includes Part I, Part II, Part I, that is, wind turbine, including
Hypsokinesis impeller, motor, motor rack and current collector, Part I have first interval and second interval, and motor is placed on it with motor
In a section, current collector and hypsokinesis impeller are placed in another section.
These current collectors as described above, due to the asymmetry of spiral case flow field, particularly current collector is at volute tongue
Flow is small, and noise is big, can not effectively improve fan efficiency using symmetrical current collector in this case, reduces fan noise.
The content of the invention
First technical problem to be solved by this invention is carried in view of the above-mentioned problems of the prior art, providing one kind
High oil absorption cigarette efficiency, the current collector for reducing noise.
Second technical problem to be solved by this invention is in view of the above-mentioned problems of the prior art, providing a kind of answer
With the centrifugal blower for having above-mentioned current collector.
Technical solution is used by the present invention solves above-mentioned first technical problem：A kind of current collector, including wind-guiding face
And stationary plane, in annular shape, the wind-guiding face includes diametrically extending necessarily from the radially inner side of stationary plane the stationary plane
The radial direction wind-guiding face of distance and the axial wind-guiding face for extending certain distance in the axial direction from the radially inner side of radial direction wind-guiding face,
Be formed as air inlet among the wind-guiding face, it is characterised in that：The axial direction wind-guiding face has first end and second in the circumferential
End, the axial direction wind-guiding face is in the first straight wind-guiding section and the second arc-shaped wind-guiding respectively between the first end and a second end
Section, the first wind-guiding section and the second wind-guiding section form the ring-type of closing.
To ensure the enough incoming air areas of air inlet, and it can guarantee that the flowing space for increasing enough oil smoke air-flows, it is described
The action of second wind-guiding section is H, a diameter of D, diameter D at the axial end of the axial direction wind-guiding face away from radial direction wind-guiding face
For the diameter of air inlet, the relation between the diameter D of above-mentioned action H and air inlet is 0.8<H/D<1.
To improve the water conservancy diversion effect of wind-guiding face, the axial direction wind-guiding face is from the radially inner side of radial direction wind-guiding face gradually to centre
Tilt so as to form cone.
Preferably, the angle between the axial wind-guiding face and the axis X of current collector is β, and the value range of β is 2 °<β<
20°。
Technical solution is used by the present invention solves above-mentioned second technical problem：One kind application has collection as described above
The centrifugal blower of device, including spiral case are flowed, the spiral case has volute tongue at air outlet, and the current collector is arranged on spiral case
Air inlet, the angle between the center line and spiral case vertical line of the first wind-guiding section of the axial wind-guiding face of the current collector is α, α
Value range be -30 °<α<30 °, when the spiral case vertical line erects dress for centrifugal blower, extend in vertical direction and pass through
The line of spiral case air inlet axis.
Compared with prior art, the advantage of the invention is that：By the crosscutting one section of straight line of current collector air inlet, and it is crosscutting
Volute tongue of the position close to spiral case so that air inlet is reduced at volute tongue, while the flowing space increase at volute tongue, so reduces volute tongue
Place participates in the oil smoke air-flow badly flowed, while the space increased adds cushion space for the impact of oil smoke air-flow, asymmetric
Shape can effective shielded sound propagation so that the impact flow amplitude of gas reduces at volute tongue, reduces volute outlet gas
Pressure fluctuation, so as to reduce fan noise.
Brief description of the drawings
Fig. 1 is the structure diagram of the centrifugal blower embodiment of the present invention；
Fig. 2 is the front schematic view of the current collector of the centrifugal blower of the present invention；
Fig. 3 is the schematic rear view of the current collector of the centrifugal blower of the present invention；
Fig. 4 is the front view of the current collector of the centrifugal blower of the present invention；
Fig. 5 is the sectional view of the current collector of the centrifugal blower of the present invention；
Fig. 6 is the first installment state schematic diagram of the current collector of the centrifugal blower of the present invention；
Fig. 7 is second of installment state schematic diagram of the current collector of the centrifugal blower of the present invention；
Fig. 8 is the third installment state schematic diagram of the current collector of the centrifugal blower of the present invention；
Fig. 9 is the sectional view of the centrifugal blower of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with attached drawing embodiment.
Referring to Fig. 1~Fig. 5, a kind of current collector, for centrifugal blower, which is mainly used for range hood.
Centrifugal blower includes spiral case 1, the impeller 2 and current collector 3 being arranged in spiral case 1, and spiral case 1 has at air outlet
There is a volute tongue 11, current collector 3 is arranged on the air inlet of the front side of spiral case 1 and coaxial with impeller 2.When impeller 2 rotates, in spiral case 1
Air be discharged to by being arranged on the outlet housing 4 at 1 air outlet of spiral case outside spiral case 1, be internally formed negative pressure in spiral case 1, oil
After cigarette is entered under the action of negative pressure by current collector 3 in spiral case 1, common flue or discharge are discharged under the action of impeller 2
It is outdoor.
Current collector 3 includes wind-guiding face 31 and stationary plane 32, wherein stationary plane 32 just facing to cooking fume stream, stationary plane 32
The back side then towards spiral case 1.Stationary plane 32 in annular shape, wind-guiding face 31 extend certain distance from the radially inner side of stationary plane 32 and
Formed.Wind-guiding face 31 includes the radial direction wind-guiding face 311 for diametrically extending certain distance from the radially inner side of stationary plane 32, and
Extend the axial wind-guiding face 312 of certain distance, 311 He of radial direction wind-guiding face in the axial direction from the radially inner side of radial direction wind-guiding face 311
Rounding off between axial wind-guiding face 312.Axial wind-guiding face 312 stationary plane 32 reverse side, i.e., when current collector 3 is installed to
After on spiral case 1, axial wind-guiding face 312 is to extend towards impeller 2.Wind-guiding face 31 and stationary plane 32 are integrated.Among wind-guiding face 31
Be formed as air inlet 33, oil smoke air-flow can be entered inside spiral case 1 by air inlet 33.
Radial direction wind-guiding face 311 can be in certain inclination, such as from the radially inner side of stationary plane 32 to centre gradually towards away from leaf
The direction of wheel 2 tilts.Axial wind-guiding face 312 is from the radially inner side of radial direction wind-guiding face 311 gradually to intermediate, inclined so as to forming circle
Taper.Diameter at axial axial end of the wind-guiding face 312 away from radial direction wind-guiding face 311 is denoted as the diameter D of air inlet 33, axial
Angle between wind-guiding face 312 and the axis X of current collector 3 is β.To cause wind-guiding face 31 to have preferable water conservancy diversion effect, β's takes
Value scope is preferably 2 °<β<20°.
Axial wind-guiding face 312 has first end 3121 and second end 3122 in the circumferential, and axial wind-guiding face 312 is in first end
It is in respectively the first straight wind-guiding section 3123 and the second arc-shaped wind-guiding section 3124 between 3121 and second end 3122, first leads
3123 and second wind-guiding section 3124 of wind section forms the ring-type of closing.Thus air inlet 33 is in asymmetric non-rotating shape.Wherein
The action of two wind-guiding sections 3124 is H, and the relation between action H and the diameter D of air inlet 33 is 0.8<H/D<1, thus it can protect
The enough incoming air areas of air inlet 33 are demonstrate,proved, and can guarantee that the flowing space for increasing enough oil smoke air-flows.
Referring to Fig. 6~Fig. 9, when current collector 3 is installed on spiral case 1, the center line L1 and spiral case of the first wind-guiding section 3123
Angle between vertical line L 2 (when centrifugal blower erects dress, extend in vertical direction row and pass through the line of 1 air inlet axis of spiral case)
For α, the value range of α is preferably -30 °<α<30 ° (when α is 0, i.e. L1 and L2 are overlapped, referring to Fig. 6).So that current collector
3 3123 part of the first wind-guiding section is corresponding with the volute tongue 11 of spiral case 1, i.e., is set close to volute tongue 11.
When centrifugal blower works, its rotational noise and eddy current crack be mainly derived from oil smoke air-flow and volute tongue 11 impact,
Separation, the raw pressure fluctuation of cooking fume miscarriage is so as to produce noise；After current collector 3 is arranged as above, due to the first straight wind-guiding
The presence of section 3123 (air inlet equivalent to current collector is crosscut) so that air inlet is reduced at volute tongue 11, while at volute tongue 11
The flowing space increases, and so reduces the oil smoke air-flow that participation is badly flowed at volute tongue 11, while the space increased is cooking fume
The impact of stream adds cushion space, asymmetrically shape can effective shielded sound propagation so that the stream of gas at volute tongue 11
Dynamic impact amplitude reduces, and the pulsation of volute outlet gas pressure is reduced, so as to reduce fan noise.
Claims (5)
1. a kind of current collector, including wind-guiding face (31) and stationary plane (32), the stationary plane (32) is in annular shape, the wind-guiding face
(31) include diametrically extending the radial direction wind-guiding face (311) of certain distance and from footpath from the radially inner side of stationary plane (32)
Extend the axial wind-guiding face (312) of certain distance in the axial direction to the radially inner side of wind-guiding face (311), in the wind-guiding face (31)
Between be formed as air inlet (33), it is characterised in that：The axial direction wind-guiding face (312) has first end (3121) and the in the circumferential
Two ends (3122), the axial direction wind-guiding face (312) are in straight the respectively between first end (3121) and second end (3122)
One wind-guiding section (3123) and the second arc-shaped wind-guiding section (3124), the first wind-guiding section (3123) and the second wind-guiding section
(3124) ring-type of closing is formed.
2. current collector as claimed in claim 1, it is characterised in that：The action of the second wind-guiding section (3124) is H, the axis
A diameter of D at axial end of the wind-guiding face (312) away from radial direction wind-guiding face (311), diameter D are the straight of air inlet (33)
Footpath, the relation between the diameter D of above-mentioned action H and air inlet (33) is 0.8<H/D<1.
3. current collector as claimed in claim 1, it is characterised in that：The axial direction wind-guiding face (312) is from radial direction wind-guiding face (311)
Radially inner side gradually to intermediate, inclined so as to forming cone.
4. current collector as claimed in claim 3, it is characterised in that：The axial direction wind-guiding face (312) and the axis of current collector (3)
Angle between X is β, and the value range of β is 2 °<β<20°.
5. a kind of centrifugal blower applied just like current collector according to any one of claims 1 to 4, including spiral case (1), described
Spiral case (1) has volute tongue (11) at air outlet, and the current collector is arranged on the air inlet of spiral case (1), the afflux
Angle between the center line (L1) and spiral case vertical line (L2) of first wind-guiding section (3123) of the axial wind-guiding face (312) of device is α,
The value range of α is -30 °<α<30 °, when the spiral case vertical line (L2) erects dress for centrifugal blower, extend in vertical direction simultaneously
Pass through the line of spiral case (1) air inlet axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710318907.6A CN107965471B (en) | 2017-05-08 | 2017-05-08 | Current collector and centrifugal fan applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710318907.6A CN107965471B (en) | 2017-05-08 | 2017-05-08 | Current collector and centrifugal fan applying same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107965471A true CN107965471A (en) | 2018-04-27 |
| CN107965471B CN107965471B (en) | 2024-04-12 |
Family
ID=61996621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710318907.6A Active CN107965471B (en) | 2017-05-08 | 2017-05-08 | Current collector and centrifugal fan applying same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107965471B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757576A (en) * | 2018-07-26 | 2018-11-06 | 洛阳北玻台信风机技术有限责任公司 | A kind of wind turbine with special-shaped discharge pipe for burner |
| CN108954753A (en) * | 2018-10-24 | 2018-12-07 | 奥克斯空调股份有限公司 | air channel structure and air conditioner |
| CN110857789A (en) * | 2018-08-23 | 2020-03-03 | 宁波方太厨具有限公司 | Fume exhaust fan |
| CN110857790A (en) * | 2018-08-23 | 2020-03-03 | 宁波方太厨具有限公司 | Range hood with current collector |
| CN110857791A (en) * | 2018-08-23 | 2020-03-03 | 宁波方太厨具有限公司 | Range hood with current collector |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07286598A (en) * | 1994-04-15 | 1995-10-31 | Mitsubishi Heavy Ind Ltd | Centrifugal fan provided with fluid deflector |
| CN201330750Y (en) * | 2008-12-17 | 2009-10-21 | 上海通用风机股份有限公司 | Current collector with asymmetrical arc structure |
| CN102466255A (en) * | 2010-10-29 | 2012-05-23 | 博西华电器（江苏）有限公司 | Range hood and air inlet ring thereof |
| CN204458530U (en) * | 2014-12-29 | 2015-07-08 | 宁波方太厨具有限公司 | The adjustable centrifugal blower of a kind of intake grill |
| CN105570201A (en) * | 2016-02-29 | 2016-05-11 | 宁波方太厨具有限公司 | Noise reduction flow collector used for centrifugal fan in range hood |
| CN206845541U (en) * | 2017-05-08 | 2018-01-05 | 宁波方太厨具有限公司 | A kind of current collector and application have the centrifugal blower of the current collector |
-
2017
- 2017-05-08 CN CN201710318907.6A patent/CN107965471B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07286598A (en) * | 1994-04-15 | 1995-10-31 | Mitsubishi Heavy Ind Ltd | Centrifugal fan provided with fluid deflector |
| CN201330750Y (en) * | 2008-12-17 | 2009-10-21 | 上海通用风机股份有限公司 | Current collector with asymmetrical arc structure |
| CN102466255A (en) * | 2010-10-29 | 2012-05-23 | 博西华电器（江苏）有限公司 | Range hood and air inlet ring thereof |
| CN204458530U (en) * | 2014-12-29 | 2015-07-08 | 宁波方太厨具有限公司 | The adjustable centrifugal blower of a kind of intake grill |
| CN105570201A (en) * | 2016-02-29 | 2016-05-11 | 宁波方太厨具有限公司 | Noise reduction flow collector used for centrifugal fan in range hood |
| CN206845541U (en) * | 2017-05-08 | 2018-01-05 | 宁波方太厨具有限公司 | A kind of current collector and application have the centrifugal blower of the current collector |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757576A (en) * | 2018-07-26 | 2018-11-06 | 洛阳北玻台信风机技术有限责任公司 | A kind of wind turbine with special-shaped discharge pipe for burner |
| CN110857789A (en) * | 2018-08-23 | 2020-03-03 | 宁波方太厨具有限公司 | Fume exhaust fan |
| CN110857790A (en) * | 2018-08-23 | 2020-03-03 | 宁波方太厨具有限公司 | Range hood with current collector |
| CN110857791A (en) * | 2018-08-23 | 2020-03-03 | 宁波方太厨具有限公司 | Range hood with current collector |
| CN108954753A (en) * | 2018-10-24 | 2018-12-07 | 奥克斯空调股份有限公司 | air channel structure and air conditioner |
| CN108954753B (en) * | 2018-10-24 | 2023-07-18 | 奥克斯空调股份有限公司 | Air duct structure and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107965471B (en) | 2024-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107965471A (en) | A kind of current collector and application have the centrifugal blower of the current collector | |
| CN102032211B (en) | Biconical impeller for range hood | |
| CN106642249B (en) | A kind of concatenated range hood of two fans | |
| CN206845541U (en) | A kind of current collector and application have the centrifugal blower of the current collector | |
| CN208886870U (en) | A kind of range hood | |
| CN107339259B (en) | Multi-wing centrifugal fan | |
| CN207673613U (en) | A kind of impeller assembly and air purifier | |
| CN106524263B (en) | A kind of range hood | |
| CN109595630B (en) | Fume exhauster | |
| CN107339241B (en) | Multi-wing centrifugal fan | |
| CN208886871U (en) | A kind of range hood with collector | |
| CN220505409U (en) | Fan system and range hood with same | |
| CN208886872U (en) | A kind of range hood with collector | |
| CN209704924U (en) | A kind of collector for centrifugal blower | |
| CN111604174A (en) | Vertical cyclone separator | |
| CN206291267U (en) | A kind of range hood of two fans series connection | |
| CN206338839U (en) | A kind of range hood | |
| CN202947186U (en) | Negative pressure type range hood | |
| CN109209932A (en) | A kind of smoke exhaust ventilator equipped with diagonal flow fan | |
| CN112963190B (en) | Air exhaust device for tunnel | |
| CN111577653B (en) | Centrifugal fan | |
| CN206222429U (en) | One kind rotation sucking kitchen ventilator | |
| CN106091059B (en) | Air inlet device capable of expanding air inlet range | |
| CN112610994B (en) | Oil fume suction device | |
| CN207554420U (en) | A kind of backward centrifugal blower and range hood for range hood |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |