CN206071950U - A kind of silent ventilator system of lampblack absorber - Google Patents
A kind of silent ventilator system of lampblack absorber Download PDFInfo
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- CN206071950U CN206071950U CN201621013902.XU CN201621013902U CN206071950U CN 206071950 U CN206071950 U CN 206071950U CN 201621013902 U CN201621013902 U CN 201621013902U CN 206071950 U CN206071950 U CN 206071950U
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- tongue portion
- snail tongue
- air
- air outlet
- impeller
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Abstract
The utility model discloses a kind of silent ventilator system of lampblack absorber, including air channel, impeller is provided with air channel, the two sides in air channel are provided with air inlet, air outlet is provided with the top of air channel, the little side of air outlet radius of curvature is provided with snail tongue portion, snail tongue portion is near the downside of impeller in the arc surfaced with impeller concentric, downside and snail tongue portion are connected by snail tongue portion front end between the upper side of air outlet, the cross section of snail tongue portion front end is provided with the V-arrangement of arc transition section in bottom, the side that snail tongue portion front end is connected with upper side is provided with two the first inclined-planes for intersecting and the second inclined-plane, first inclined-plane is the arc surface that snail tongue portion front end is formed to after chamfering on the left of snail tongue portion, second inclined-plane is the arc surface that snail tongue portion front end is formed to after chamfering on the right side of snail tongue portion.This utility model can reduce air-flow and the concentration in snail tongue portion is impacted, and impact the situation in snail tongue portion, reduce the noise at fan outlet in improving air outlet air flow collection.
Description
Technical field
This utility model is related to lampblack absorber technical field, and in particular to the blower fan system of lampblack absorber.
Background technology
The blower fan system of lampblack absorber plays oil smoke and separates and arrange wind action.Blower fan system generally comprises the wind of scroll casing shape
Road, motor and impeller, the side in air channel are provided with air inlet, are provided with air outlet, to prevent portion gas at the end coils in air channel
In air channel internal circulation flow, it is typically provided on the inside of air outlet and the integrally formed snail tongue portion in air channel.During work, impeller is in motor
Drive under rotation and be internally formed negative pressure in air channel, make oil smoke enter air inlet and from air outlet discharge, should during blower fan
System produces larger noise, including the exhaust noise that impeller is pulsed to outer periodic aerofluxuss build-up of pressure and produced, Yi Jiqi
The eddy current crack that body vortex causes in impeller interface division, such as snail tongue impacted on the inside of air outlet in the air flow collection of impeller surface
Portion, and larger exhaust noise is produced in air outlet.Chinese patent CN201463047U, a kind of range hood air of patent name
Road, on May 12 2010 Granted publication date, discloses the lampblack absorber air channel that a kind of air outlet is provided with noise reducing plate, noise reducing plate
V-shaped bulk, is arranged on the side relative with snail tongue portion, is made an uproar to reduce by the flow distribution for changing air outlet air-flow
The purpose of sound, but the air-flow discharged from air outlet can still concentrate the snail tongue portion impacted at air port, produce air outlet
The larger noise of life, noise reduction are general.
Utility model content
Snail tongue portion to solve to impact air outlet in the air flow collection in lampblack absorber air channel makes blower fan produce larger noise
Problem, the new purpose of this practicality are the situation in impact snail tongue portion in the air flow collection for improve air outlet, reduce fan outlet
The noise at place.
This utility model provides following technical scheme：
A kind of silent ventilator system of lampblack absorber, including the air channel of scroll casing shape, are provided with impeller in air channel, and the two of air channel
Side is provided with air inlet, and air outlet is provided with the top of air channel, and the little side of the air outlet radius of curvature is provided with snail tongue portion, described
Near the downside of the impeller in the arc surfaced with the impeller concentric, the downside is leaned on the snail tongue portion in snail tongue portion
Connected by snail tongue portion front end between the upper side of the nearly air outlet, the cross section of snail tongue portion front end is set in bottom
There is a V-arrangement of arc transition section, it is oblique that snail tongue portion front end and the side that the upper side connects are provided with two first for intersecting
Face and the second inclined-plane, first inclined-plane is the arc surface that snail tongue portion front end is formed to after chamfering on the left of the snail tongue portion,
Second inclined-plane is the arc surface that snail tongue portion front end is formed to after chamfering on the right side of the snail tongue portion.
Snail tongue portion is arranged on the little side of air outlet radius of curvature, to prevent the fraction at duct outlet, especially
Be recline impeller surface air-flow because centrifugal force effect produce internal circulation flow, now the fraction can concentrate impact in snail
The upper side of tongue, the side that especially snail tongue portion front end is connected with upper side, while the air-flow that the impeller surface that reclines is gone out
Snail tongue portion front end can be impacted.As the side that snail tongue portion front end is connected with upper side is provided with two the first inclined-planes for intersecting and
Two inclined-planes, the first inclined-plane are the arc surfaces that snail tongue portion front end is formed to after chamfering on the left of snail tongue portion, before the second inclined-plane is snail tongue portion
Hold the arc surface formed after chamfering on the right side of snail tongue portion, the left side in the lateral snail tongue portion that such snail tongue portion front end is connected with upper side
Right both sides incline, and now in air channel, the air-flow of impeller surface can impact two inclined-planes respectively so that air-flow is impacting two inclined-planes
When form a phase contrast in time, so as to disperse the air-flow of air outlet to impact the concentration in snail tongue portion, reduce air outlet
The noise at place.
As it is of the present utility model it is a kind of improve, any two points and the leaf of the front end and the downside junction
The gap of wheel is equal.Air channel internal hemorrhage due to trauma pressure phenomenon is effectively prevented so, so as to keep higher in air channel while noise is reduced
Aerodynamic quality.
As it is of the present utility model it is a kind of improve, the throwing of the leading edge of snail tongue portion front end on the air outlet end face
Shadow is V-shaped, and the left side of the V-arrangement and the angle of air outlet end face are a, the right edge of the V-arrangement and the folder of air outlet end face
Angle is b, wherein a=b+（3 °～9 °）.The centre position of the intersection deviation snail tongue portion front end on two inclined-planes is made so, two inclined-planes
Shape difference, so that the throughput on two inclined-planes of impact is different, enhances the noise reduction in snail tongue portion.
As a kind of improvement of the present utility model, the radius of curvature ratio at the air channel radius of curvature maximum and minimum
Scope is 1.2～1.6.Air channel is maximum in the radius of curvature of air outlet, and the radius of curvature of air outlet is bigger, the row in air channel
The air-flow for going out is less in the flowing velocity of air outlet, and the noise in corresponding air channel is also less, but the most Daqu (massive raw stater for alcholic liquor) of air outlet
Rate radius is crossed conference and makes occur turbulent flow in air channel, reduces the power performance of gas in air channel.
Used as a kind of improvement of the present utility model, the air inlet is provided with the air-ducting ring being adapted to the impeller.So
By installing the air-ducting ring being adapted to impeller, the degree that is adapted to improved between impeller and air channel is reached, air channel internal noise is reduced
Purpose, produce the effect cooperateed with the effect in snail tongue portion.
Used as a kind of improvement of the present utility model, the end of the air outlet is provided with mounting flange, and the flange is provided with
Some installing holes.The installation of blower fan system is so facilitated to connect.
The beneficial effects of the utility model are as follows：
This utility model is by arranging two respectively to the left side in snail tongue portion in snail tongue portion front end on air outlet side
With right-oblique first inclined-plane and the second inclined-plane, the air-flow of air outlet is made to form temporal phase when snail tongue portion front end is impacted
Potential difference, reduces air-flow and the concentration in snail tongue portion is impacted, impact the situation in snail tongue portion, reduce blower fan in improving air outlet air flow collection
The noise of air outlet.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is top view of the present utility model.
Fig. 3 is the schematic diagram in snail tongue portion.
In figure：1 air channel, 2 impellers, 3 rotary electric machines, 4 air outlets, 5 snail tongue portions, 50 snail tongue portion front ends, 51 first
Inclined-plane, 52 second inclined-planes, 53 intersections, 6 screws, 7 installing holes.
Specific embodiment
Below in conjunction with the accompanying drawings specific embodiment of the present utility model is described further：
As shown in Figure 1, Figure 3, a kind of silent ventilator system of lampblack absorber, including air channel 1, air channel is included on the left of air channel
Plate, air channel right plate and air channel curved wall, on circumference of the air channel in air channel curved wall, along the circumferential direction radius of curvature gradually increases for side
Scroll casing shape.The left and right sides plate in air channel be respectively equipped with circle air inlet, be provided with air channel one it is same with two air inlets
The rotary electric machine 3 of axle, is socketed an impeller 2, and is threadedly coupled with output shaft by an aluminium lid on the output shaft of rotary electric machine
It is fixed.The end at the top in air channel, i.e. its end coils is provided with rectangular air outlet 4, the little side of air outlet radius of curvature
Inwall be provided with parallel and wide with the air outlet snail tongue portion 5 in the left and right sides, at the root that snail tongue portion is connected with air outlet with
Air outlet side is connected by screw 6.Snail tongue portion near the downside of impeller in the cambered surface with impeller concentric, under snail tongue portion
Side and snail tongue portion are connected by 50 transition of snail tongue portion front end between the upper side of air outlet, snail tongue portion front end edge impeller footpath
To cross section the V-arrangement of arc transition section is provided with bottom, the side that snail tongue portion front end is connected with upper side is provided with two and intersects
The first inclined-plane 51 and the second inclined-plane 52, the first inclined-plane is the arc surface that snail tongue portion front end is formed to after chamfering on the left of snail tongue portion,
Second inclined-plane is the arc surface that snail tongue portion front end is formed to after chamfering on the right side of snail tongue portion, makes what snail tongue portion front end was connected with upper side
The left and right sides in one lateral snail tongue portion inclines, and the intersection 53 of the arc-shaped on two inclined-planes is parallel with the left and right sides in snail tongue portion, and
One end points of intersection is located at the leading edge of front end, so operationally, due to the side that snail tongue portion front end is connected with upper side
Two the first intersecting inclined-planes and the second inclined-plane are provided with, the air-flow at duct outlet can impact two inclined-planes respectively so that gas
Stream forms a phase contrast in time when two inclined-planes are impacted, so as to disperse concentration of the air-flow of air outlet to snail tongue portion
Impact, reduces the noise of air outlet.
As shown in Fig. 2 projection of the leading edge of side that is connected with upper side of front end on air outlet end face is V-shaped, it is
Convenient to illustrate, the left side of V-arrangement and the angle of air outlet end face are a, the right edge of V-arrangement and the angle b of air outlet end face, angle
A=angle b+（3 °～9 °）, make the intersection on two inclined-planes deviate the centre position of front end, the shape on two inclined-planes is different, makes impact
The throughput on two inclined-planes is different, to strengthen the noise reduction in snail tongue portion.
To prevent from occurring leakage pressure, the aerodynamic quality for while noise is reduced keeping air channel higher, snail tongue in air channel
Portion front end is equal with the gap of the impeller with any two points of downside junction.In addition, to make air channel interior air-flow dynamic property
Can be stable, the air outlet in air channel is radius of curvature maximum, and the spiral section start with air channel is the ratio at radius of curvature minimum
Value scope is 1.2～1.6.
To improve the adaptation degree of blower fan system, air channel and impeller no-float are made, to weaken the noise in air channel, is being entered
One is arranged at air port and is embedded in the air-ducting ring on the inside of impeller.
For convenience of the installation of blower fan system, the end of air outlet is provided with mounting flange, and mounting flange is provided with 9 installing holes
7。
Claims (6)
1. a kind of silent ventilator system of lampblack absorber, including the air channel of scroll casing shape（1）, in air channel, it is provided with impeller（2）, air channel
Two sides be provided with air inlet, air outlet is provided with the top of air channel（4）, it is characterised in that the air outlet radius of curvature is little
Side is provided with snail tongue portion（5）, the snail tongue portion is near the downside of the impeller in the arc surfaced with the impeller concentric, institute
Downside and the snail tongue portion are stated between the upper side of the air outlet by snail tongue portion front end（50）Connection, it is described
The cross section of snail tongue portion front end is provided with the V-arrangement of arc transition section in bottom, and snail tongue portion front end is connected with the upper side
Side is provided with two the first intersecting inclined-planes（51）With the second inclined-plane（52）, first inclined-plane be snail tongue portion front end to
The arc surface formed after chamfering on the left of the snail tongue portion, second inclined-plane are snail tongue portion front ends on the right side of the snail tongue portion
The arc surface formed after chamfering.
2. the silent ventilator system of lampblack absorber according to claim 1, it is characterised in that snail tongue portion front end with
Any two points on the downside junction are equal with the gap of the impeller.
3. the silent ventilator system of lampblack absorber according to claim 1, it is characterised in that snail tongue portion front end
Projection of the leading edge on institute's air outlet end face is V-shaped, and the left side of the V-arrangement and the angle of air outlet end face are a, the V
The right edge of shape and the angle of air outlet end face are b, wherein, a=b+（3 °～9 °）.
4. the silent ventilator system of the lampblack absorber according to claim 1 or 2 or 3, it is characterised in that the air channel is bent
Rate radius maximum is 1.2～1.6 with the radius of curvature ratio range at minimum.
5. the silent ventilator system of the lampblack absorber according to claim 1 or 2 or 3, it is characterised in that the air inlet
Place is provided with the air-ducting ring being adapted to the impeller.
6. the silent ventilator system of the lampblack absorber according to claim 1 or 2 or 3, it is characterised in that the air outlet
End be provided with mounting flange, the flange is provided with some installing holes（7）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621013902.XU CN206071950U (en) | 2016-08-31 | 2016-08-31 | A kind of silent ventilator system of lampblack absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621013902.XU CN206071950U (en) | 2016-08-31 | 2016-08-31 | A kind of silent ventilator system of lampblack absorber |
Publications (1)
| Publication Number | Publication Date |
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| CN206071950U true CN206071950U (en) | 2017-04-05 |
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ID=58434827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621013902.XU Active CN206071950U (en) | 2016-08-31 | 2016-08-31 | A kind of silent ventilator system of lampblack absorber |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107761620A (en) * | 2017-10-24 | 2018-03-06 | 徐工集团工程机械有限公司 | Air channel part and road cleaner |
| CN109820234A (en) * | 2018-12-20 | 2019-05-31 | 张家口卷烟厂有限责任公司 | First air separating device |
| CN110067775A (en) * | 2018-01-24 | 2019-07-30 | 青岛海尔智慧厨房电器有限公司 | A kind of volute tongue structure, volute of blower and a kind of kitchen ventilator |
| US11506222B2 (en) | 2018-09-25 | 2022-11-22 | Carrier Corporation | Fan housing, fan and operating system having a fan |
-
2016
- 2016-08-31 CN CN201621013902.XU patent/CN206071950U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107761620A (en) * | 2017-10-24 | 2018-03-06 | 徐工集团工程机械有限公司 | Air channel part and road cleaner |
| CN110067775A (en) * | 2018-01-24 | 2019-07-30 | 青岛海尔智慧厨房电器有限公司 | A kind of volute tongue structure, volute of blower and a kind of kitchen ventilator |
| US11506222B2 (en) | 2018-09-25 | 2022-11-22 | Carrier Corporation | Fan housing, fan and operating system having a fan |
| CN109820234A (en) * | 2018-12-20 | 2019-05-31 | 张家口卷烟厂有限责任公司 | First air separating device |
| CN109820234B (en) * | 2018-12-20 | 2021-10-29 | 张家口卷烟厂有限责任公司 | Primary air separation device |
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