CN203627318U - Draft fan volute and smoke exhausting machine - Google Patents
Draft fan volute and smoke exhausting machine Download PDFInfo
- Publication number
- CN203627318U CN203627318U CN201320832642.9U CN201320832642U CN203627318U CN 203627318 U CN203627318 U CN 203627318U CN 201320832642 U CN201320832642 U CN 201320832642U CN 203627318 U CN203627318 U CN 203627318U
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- Prior art keywords
- volute
- plate
- central axis
- circle central
- header board
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- Expired - Lifetime
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- 239000000779 smoke Substances 0.000 title abstract description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 230000006641 stabilisation Effects 0.000 description 8
- 238000011105 stabilization Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a draft fan volute which comprises a front plate, a flow guiding plate and a rear plate. The flow guiding plate is connected with the front plate and the rear plate. A front air inlet is formed in the front plate and a rear air inlet is formed in the rear plate. The axes of centers of circles of the front air inlet and the rear air inlet deviate from each other. Thus, unsteadiness of flowing air in the volute into which the air enters from the front and from the rear is corrected, the function of stabilizing air flow is achieved and noise is lowered. In addition, the utility model further provides a smoke exhausting machine which comprises a shell, an air inlet and an air outlet, wherein the air inlet and the air outlet are located in the two ends of the shell. The draft fan volute is arranged between the air inlet and the air outlet.
Description
Technical field
The utility model relates to kitchen electrical domain, more specifically, relates to a kind of volute of blower and kitchen ventilator.
Background technique
The range hood of now generally seeing is on the market exhausting type range hood, it discharges oil smoke to common flue until in atmosphere by volute of blower mechanism, volute of blower mechanism mainly contains single advancing air and pair front and back air intake Liang Zhong mechanism, and air intake two kinds of mechanism forms in two front and back are more, wherein one is that forward cover plate and back shroud and arc deflector couple together, wherein front shroud has advancing air hole, and back shroud has rear intake opening, and the center of circle of advancing air hole and rear intake opening overlaps.But the volute of blower mechanism that two centers of circle, this kind of front and back overlap, different because of air intake flow and the wind speed of this advancing air hole and rear intake opening, before and after having caused, air intake is not steady to the moving air in spiral case, and noise increases.
Model utility content
Technical problem to be solved in the utility model provides a kind of volute of blower and kitchen ventilator, not steady with moving air in the spiral case of air intake before and after correcting, and plays current stabilization effect, reduces noise.
The utility model provides a kind of volute of blower, comprise: front and rear panels, on header board, have advancing air hole, intake opening after having on rear plate, advancing air hole has the first circle central axis, and rear intake opening has the second circle central axis, and the first circle central axis is perpendicular to place, advancing air hole plane, the second circle central axis is perpendicular to rear intake opening place plane, and the first circle central axis and the second circle central axis deviate.
Further, the first circle central axis and the second circle central axis depart from 2-3mm.
Further, also comprise side plate, top board, side plate connects front and rear panels, and top board connects header board, rear plate and side plate.
Further, also comprise guide plate, guide plate welds with front and rear panels respectively.
Further, side plate is riveted with front and rear panels respectively.
Further, top board respectively with header board, rear plate and plate-side plate welding.
Further, the opening diameter in advancing air hole is φ 253 ± 1mm, and the opening diameter of rear intake opening is φ 188 ± 1mm.
Further, between advancing air hole and rear intake opening, wind wheel is installed, the effective blade length of wind wheel is 122-123mm.
Further, the angle of guide plate and header board is 131 ° ± 1 °, and the angle of guide plate and rear plate is 159 ° ± 1 °.
Another technical problem to be solved in the utility model is to provide a kind of kitchen ventilator, and it has the current stabilization of playing effect, reduces the volute of blower of noise.
The utility model also provides a kind of kitchen ventilator, comprises shell, is positioned at intake grill and the exhaust outlet at shell two ends, and above-mentioned volute of blower is installed between intake grill and exhaust outlet.
The volute of blower that the utility model provides, by adjusting the circle central axis distance of advancing air hole and rear intake opening, allows two circle central axis disalignments and departs from, not steady with moving air in the spiral case of air intake before and after correcting, and plays current stabilization effect, reduction noise.
The kitchen ventilator that the utility model provides is provided with above-mentioned volute of blower between intake grill and exhaust outlet, not steady with moving air in the spiral case of air intake before and after correcting, and plays current stabilization effect, reduces noise.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the plan view of the utility model volute of blower;
Fig. 2 is the rear view of the utility model volute of blower;
Fig. 3 is the left view of the utility model volute of blower;
Fig. 4 is the stereogram of the utility model volute of blower;
Fig. 5 is the stereogram that the utility model is provided with the volute of blower of wind wheel.
Description of reference numerals:
1, guide plate, 2, header board, 3, rear plate, 4, side plate, 5, top board, 6, wind wheel, 7, the second circle central axis, 8, the first circle central axis, the angle of A, guide plate and rear plate, the angle of B, guide plate and header board
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who obtains under creative work prerequisite, all belong to the scope of the utility model protection.
This embodiment provides a kind of volute of blower and kitchen ventilator, not steady with moving air in the spiral case of air intake before and after correcting, and plays current stabilization effect, reduces noise.
Referring to drawings and Examples, the utility model is described in detail.
Referring to Fig. 4, a kind of volute of blower, comprising: header board 2, guide plate 1 and rear plate 3 have advancing air hole on header board 2, intake opening after having on rear plate 3, header board 2 and rear plate 3 couple together rear guiding shunting air by guide plate 1 and enter respectively advancing air hole and rear intake opening.Above-mentioned volute of blower also comprises side plate 4, top board 5, and side plate 4 connects header board 2 and rear plate 3, and top board 5 connects header board 2, rear plate 3 and side plate 4.Preferably, volute of blower entirety is welded by guide plate 1 and header board 2; Guide plate 1 and rear plate 3 weld; Side plate 4 and header board 2 are riveted; Side plate 4 and rear plate 3 are riveted; Top board 5 forms with side plate 4, header board 2, the common making of rear plate 3 welding respectively.
Preferably, the opening diameter in advancing air hole is φ 253 ± 1mm, and the opening diameter of rear intake opening is φ 188 ± 1mm.
Referring to Fig. 5, between advancing air hole and rear intake opening, wind wheel 6 is installed, the effective blade length of wind wheel 6 is 122-123mm.So-called effective blade length refers to the length of the blade that can play diversion air.
According to the design of the effective blade length dimension of the opening diameter of the opening diameter in advancing air hole, rear intake opening and wind wheel 6, referring to Fig. 3, design guide plate 1 is 131 ° ± 1 ° with the included angle B of header board 2, and guide plate 1 is 159 ° ± 1 ° with the included angle A of rear plate 3.
Again because air intake flow and the wind speed of this advancing air hole and rear intake opening are different, before and after causing, air intake is not steady to the moving air in spiral case, noise increases, for sort this problem out, referring to Fig. 1, Fig. 2, the first circle central axis 8 and the second circle central axis 7 deviate, preferentially, and two circle central axis disalignments and depart from 2-3mm.By adjusting the circle central axis distance of advancing air hole and rear intake opening, not steady with moving air in the spiral case of air intake before and after correcting, play current stabilization effect, reduce noise.
The utility model also provides a kind of kitchen ventilator, comprises shell, is positioned at intake grill and the exhaust outlet at shell two ends, and above-mentioned volute of blower is installed between intake grill and exhaust outlet.
The volute of blower that the utility model provides, by adjusting the circle central axis distance of advancing air hole and rear intake opening, allows two circle central axis disalignments and departs from, not steady with moving air in the spiral case of air intake before and after correcting, and plays current stabilization effect, reduction noise.
The kitchen ventilator that the utility model provides is provided with above-mentioned volute of blower between intake grill and exhaust outlet, not steady with moving air in the spiral case of air intake before and after correcting, and plays current stabilization effect, reduces noise.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To be apparent for those skilled in the art to these embodiments' multiple modification, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a volute of blower, comprise: front and rear panels, on described header board, have advancing air hole, intake opening after having on described rear plate, described advancing air hole has the first circle central axis, and described rear intake opening has the second circle central axis, and described the first circle central axis is perpendicular to place, described advancing air hole plane, described the second circle central axis, perpendicular to described rear intake opening place plane, is characterized in that: described the first circle central axis and described the second circle central axis deviate.
2. volute of blower according to claim 1, is characterized in that, described the first circle central axis and described the second circle central axis depart from 2-3mm.
3. volute of blower according to claim 1, is characterized in that, also comprises side plate, top board, and described side plate connects described header board and described rear plate, and described top board connects described header board, described rear plate and described side plate.
4. volute of blower according to claim 1, is characterized in that, also comprises guide plate, and described guide plate welds with described header board and described rear plate respectively.
5. volute of blower according to claim 3, is characterized in that, described side plate is riveted with described header board and described rear plate respectively.
6. volute of blower according to claim 3, is characterized in that, described top board respectively with described header board, described rear plate and described plate-side plate welding.
7. volute of blower according to claim 1, is characterized in that, the opening diameter in described advancing air hole is φ 253 ± 1mm, and the opening diameter of described rear intake opening is φ 188 ± 1mm.
8. volute of blower according to claim 1, is characterized in that, between described advancing air hole and described rear intake opening, wind wheel is installed, and the effective blade length of described wind wheel is 122-123mm.
9. volute of blower according to claim 4, is characterized in that, the angle of described guide plate and described header board is 131 ° ± 1 °, and the angle of described guide plate and described rear plate is 159 ° ± 1 °.
10. a kitchen ventilator, comprises shell, is positioned at intake grill and the exhaust outlet at shell two ends, it is characterized in that: the volute of blower as described in claim 1-9 any one is installed between described intake grill and described exhaust outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320832642.9U CN203627318U (en) | 2013-12-16 | 2013-12-16 | Draft fan volute and smoke exhausting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320832642.9U CN203627318U (en) | 2013-12-16 | 2013-12-16 | Draft fan volute and smoke exhausting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203627318U true CN203627318U (en) | 2014-06-04 |
Family
ID=50813801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320832642.9U Expired - Lifetime CN203627318U (en) | 2013-12-16 | 2013-12-16 | Draft fan volute and smoke exhausting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203627318U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015099A (en) * | 2016-05-19 | 2016-10-12 | 武汉船用机械有限责任公司 | Spiral casing of ballast pump |
| CN106704225A (en) * | 2017-01-17 | 2017-05-24 | 东莞市金鸿盛电器有限公司 | Bias centrifugal fan and dehumidifier comprising same |
| CN109236744A (en) * | 2018-10-19 | 2019-01-18 | 西北工业大学 | A kind of volute structure for kitchen ventilator with circular arc inlet cone sidewall slope |
-
2013
- 2013-12-16 CN CN201320832642.9U patent/CN203627318U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015099A (en) * | 2016-05-19 | 2016-10-12 | 武汉船用机械有限责任公司 | Spiral casing of ballast pump |
| CN106704225A (en) * | 2017-01-17 | 2017-05-24 | 东莞市金鸿盛电器有限公司 | Bias centrifugal fan and dehumidifier comprising same |
| CN109236744A (en) * | 2018-10-19 | 2019-01-18 | 西北工业大学 | A kind of volute structure for kitchen ventilator with circular arc inlet cone sidewall slope |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |