CN113531623A - Mute direct-exhaust air duct structure and integrated stove thereof - Google Patents
Mute direct-exhaust air duct structure and integrated stove thereof Download PDFInfo
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- CN113531623A CN113531623A CN202110880402.5A CN202110880402A CN113531623A CN 113531623 A CN113531623 A CN 113531623A CN 202110880402 A CN202110880402 A CN 202110880402A CN 113531623 A CN113531623 A CN 113531623A
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- air
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- shell
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- 230000009467 reduction Effects 0.000 claims abstract description 26
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 239000003517 fume Substances 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 11
- 239000004519 grease Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000000779 smoke Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- F24C15/2042—Devices for removing cooking fumes structurally associated with a cooking range e.g. downdraft
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a mute direct-exhaust air duct structure and an integrated stove thereof, belonging to the technical field of oil fume treatment. A mute direct-discharging air channel structure comprises an air box, wherein the air box is provided with an air inlet and an air outlet, a volute is fixed in the air box, the air outlet of the volute is connected with the air outlet, and the lowest part of the volute is provided with a first oil leakage hole; the oil leakage device also comprises a shell, wherein a cavity is arranged in the shell, the upper part of the shell is provided with an inlet communicated with the cavity, and the inlet is connected with the first oil leakage hole; the lower part of the shell is provided with an outlet communicated with the cavity, the two sides of the cavity along the width direction are provided with speed reduction plates in a staggered manner, and the speed reduction plates divide the cavity to form a non-straight flow guide channel.
Description
Technical Field
The invention belongs to the technical field of oil fume treatment, and particularly relates to a mute direct-exhaust air duct structure and an integrated stove thereof.
Background
In the existing integrated kitchen, in order to improve the air exhaust efficiency, reduce the air flow loss, greatly reduce the probability of the generation of turbulent flow and improve the fan efficiency, a volute air channel is directly fixed in an air guide box, and then an air outlet of the volute air channel is directly connected with an air outlet cover.
In the specific implementation process, an oil leakage port is arranged at the lowest position of the air guide box, and a corresponding oil leakage port is also arranged at the lowest position of the volute air channel. However, in the air transportation process, the volute air channel is directly connected with the air outlet cover, so that the air flow disturbance is greatly reduced, and the high-pressure air flow directly generates air noise through the oil leakage opening.
Disclosure of Invention
The invention aims to solve the problems in the prior art, provides a mute direct-exhaust air duct structure and solves the problem that high-pressure air flow directly generates air noise through an oil leakage opening.
Another object of the present invention is to solve the above problems with the prior art by providing an integrated cooker.
The purpose of the invention can be realized by the following technical scheme:
a mute direct-exhaust air duct structure comprises
A bellows having an air inlet and an air outlet,
the volute is fixed in the air box, an air outlet of the volute is connected with the air outlet, and a first oil leakage hole is formed in the lowest position of the volute;
it is characterized by also comprising
The shell is internally provided with a cavity, the upper part of the shell is provided with an inlet communicated with the cavity, and the inlet is connected with the first oil leakage hole; the lower part of the shell is provided with an outlet communicated with the cavity, two sides of the cavity along the width direction are provided with speed reduction plates in a staggered mode, and the speed reduction plates divide the cavity to form a non-straight flow guide channel.
In the above silent straight-row air duct structure, the bottom of the chamber has an inclined guide surface, and the inclined guide surface gradually decreases from the inlet to the outlet.
In the above-mentioned structure of the air duct with the silent straight row, the outlet is located at the lowest position of the inclined guide surface.
In the mute direct-exhaust air duct structure, an arc-shaped guide surface is arranged at the joint of the speed reduction plate and the inclined guide surface.
In the above-mentioned silent straight-row air duct structure, the speed-reducing plate is inclined from the inlet toward the outlet.
In the air duct structure with the silent straight discharge function, the included angle between the speed reduction plate and the inner side wall of the chamber is 60-80 degrees.
In the air duct structure with the mute straight row, the casing comprises an upper cover and a lower cover, the speed reduction plate is arranged on the lower cover, and after the upper cover and the lower cover are covered, the speed reduction plate is abutted to the inner surface of the upper cover.
In the air duct structure with the mute straight row, the lower cover is provided with the connecting lug.
In the air duct structure with the mute direct discharge function, the flow guide channel is in a zigzag shape.
In the air duct structure with the mute straight row, the lowest part of the bottom of the air box is provided with the second oil leakage hole, and the second oil leakage hole and the outlet are in a non-collinear line.
In the air duct structure with the silent straight-row structure, the outlet of the shell is spaced from the bottom of the air box.
An integrated kitchen comprises the mute direct-exhaust air duct structure.
Compared with the prior art, the invention has the following advantages:
1. at a casing of first oil leak hole design, high-pressure draught can get into from the import of casing, then under the effect of falling speed board, high-pressure draught is inside gradually loss energy, improves the air noise, and grease also can slowly flow out along with water conservancy diversion passageway simultaneously, and can not blow and scatter.
2. After the high-speed airflow vertically enters the flow guide channel in the shell, the high-speed airflow can be instantaneously decelerated after contacting the bottom in the shell. Meanwhile, a non-straight flow guide channel is designed, so that the passing distance of high-speed airflow can be greatly increased, and the flow speed can be greatly reduced after the high-speed airflow moves through multiple sections of turns. Moreover, after the flow velocity of the air flow in the shell is reduced, subsequent high-pressure air flow can be reduced to enter the shell, the air flow is further reduced to enter the flow guide channel, and noise can be greatly reduced.
Drawings
FIG. 1 is a schematic of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
Figure 3 is a schematic view of a volute of the present invention.
Fig. 4 is a schematic view of the housing of the present invention.
Fig. 5 is a schematic view of the present invention with the housing disassembled.
In the figure, 1, a wind box; 11. an air inlet; 12. an air outlet; 13. a second oil leak hole; 2. a volute; 21. a first oil leak hole; 3. a housing; 31. an upper cover; 311. an inlet; 32. a lower cover; 321. an outlet; 322. a speed reduction plate; 3221. an arc-shaped guide surface; 323. a flow guide channel; 324. an inclined guide surface; 325. connecting lugs; 4. spacing; alpha and an included angle.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 to 5, a silent straight-line air duct structure includes an air box 1, a volute 2 and a housing 3, wherein the housing 3 is made of high-temperature-resistant plastic material or metal material, the air box 1 has an air inlet 11 and an air outlet 12, the volute 2 is fixed in the air box 1, the air outlet of the volute 2 is connected with the air outlet 12, and the lowest part of the volute 2 is provided with a first oil leakage hole 21; a cavity is arranged in the shell 3, an inlet 311 communicated with the cavity is arranged at the upper part of the shell 3, and the inlet 311 is connected with the first oil leakage hole 21; the lower part of the shell 3 is provided with an outlet 321 communicated with the cavity, two sides of the cavity along the width direction are provided with speed reduction plates 322 in a staggered manner, and the speed reduction plates 322 divide the cavity into non-straight flow guide channels 323.
In the invention, the diameter of the first oil leakage hole 21 at the bottom of the volute 2 is smaller, and the original design is only that oil flows out of the volute 2, but in the actual process, after oil smoke is sucked into the air box 1 and enters from the volute 2, because the air outlet of the volute 2 is directly connected with the air outlet 12 of the air box 1, the oil smoke sucked by the volute 2 is greatly reduced and the turbulent flow is generated, the moving path of the oil smoke in the air box 1 and the air channel is reduced, a strong high-speed airflow can be formed, in the moving process of the airflow, part of the airflow can quickly flow out from the first oil leakage hole 21 at the bottom of the volute 2, in the quick flowing process, large noise is generated, and the high-speed airflow directly impacts the bottom of the air box 1 to generate other noise, and simultaneously blows and scatters the oil everywhere so as to be attached to the side wall of the air box 1. A shell 3 is designed at the first oil leakage hole 21, high-pressure air flow can enter from an inlet 311 of the shell 3, then under the action of a speed reducing plate 322, the high-pressure air flow gradually loses energy inside, air noise is improved, and meanwhile grease can slowly flow out along with a flow guide channel 323 and cannot be blown away.
Further, the housing 3 is horizontally disposed, and the flow guiding channel 323 in the housing 3 is perpendicular to the air outlet direction from the first oil leakage hole 21. After the high-speed airflow vertically enters the flow guide channel 323 in the shell 3, the high-speed airflow contacts the bottom in the shell 3 and can be decelerated instantly. Meanwhile, a non-straight flow guide channel 323 is designed, so that the passing distance of high-speed airflow can be greatly increased, and the flow speed of the high-speed airflow can be greatly reduced after the high-speed airflow moves through multiple sections of turns. Moreover, after the flow velocity of the air flow in the housing 3 is reduced, the subsequent high-pressure air flow entering the housing 3 can be reduced, the air flow entering the flow guide channel 323 can be further reduced, and the noise can be greatly reduced. When viewed from the side, an escaping flow from the branch flow is reduced, that is, a part of the air flow which originally escapes from the first oil leakage hole 21 can flow out from the air outlet 12, and the oil smoke suction effect can be improved in a small degree.
Further, the number of the deceleration plates 322 is at least three. Preferably, the number of the speed-reducing plates 322 is three, and after the high-speed airflow is subjected to the blocking speed reduction of the three speed-reducing plates in sequence, the noise generated after the high-speed airflow is subjected to the speed reduction is negligible.
Specifically, the bottom of the chamber has an inclined guide surface 324, and the inclined guide surface 324 is gradually decreased from the inlet 311 toward the outlet 321. The inclined guide surface 324 is used for guiding the grease, and the grease is prevented from being accumulated in the cavity. Further, the distance between the highest point of the inclined guide surface 324 and the first oil leakage hole 21 of the scroll casing 2 is less than 2 cm. This design allows a shorter distance for the high velocity air stream to contact the inclined guide surface 324 from the first oil leakage hole 21, avoiding a longer, vertical acceleration path for the high velocity air stream after entering from the first oil leakage hole 21.
Specifically, the outlet 321 is located at the lowest of the inclined guide surfaces 324. Can effectively make the grease flow out and avoid stacking. Preferably, the inlet 311 corresponds to the highest of the inclined guide surfaces 324. The design can ensure that the high-speed airflow can pass through the longest distance after entering the flow guide channel 323, and the best speed reduction effect is achieved.
Specifically, an arc-shaped guide surface 3221 is disposed at the joint of the decelerating plate 322 and the inclined guide surface 324. After the high-pressure air flow brings the grease into the cavity, the impact speed of the high-pressure air flow is higher, the grease can quickly impact the speed reduction plate 322 along the inclined bottom surface after impacting the inclined guide surface 324, and a better guiding effect can be achieved by arranging the arc-shaped guide surface 3221. The arc-shaped guide surface 3221 can also increase the width of the lower end of the depressed portion, and can further improve the connection strength between the speed-reduction plate 322 and the inclined guide surface 324.
Specifically, the velocity reduction plate 322 is inclined from the inlet 311 toward the outlet 321. The inclination of a point is set, so that a better guiding effect and a speed reduction effect can be achieved, and meanwhile, the noise generated by intercepting the high-pressure airflow can be reduced.
Specifically, the angle α between the inner wall where the velocity reduction plate 322 joins the chamber is 60-80 °. Have better guide effect, noise reduction effect under this angle. Further, the angle α is 75 °. The angle has the best speed reduction and noise reduction effects.
Specifically, the body comprises an upper cover 31 and a lower cover 32, the speed reduction plate 322 is arranged on the lower cover 32, and after the upper cover 31 and the lower cover 32 are closed, the speed reduction plate 322 abuts against the inner surface of the upper cover 31. This design can facilitate the assembly of this device.
Specifically, the lower cap 32 has engaging lugs 325. The device can be fixed through the connecting lug 325, and after the lower cover 32 is fixedly connected, the upper cover 31 can be abutted against the outer bottom of the cavity, so that the upper cover 31 is prevented from being separated. Can be directly fixed on the bottom of the volute 2 under the action of screws through the connecting lug 325. Further, the engaging lugs 325 are provided in two numbers, respectively, on both sides of the lower cover 32.
Specifically, the lowermost portion of the bottom of the air box 1 is provided with a second oil leakage hole 13, and the second oil leakage hole 13 and the outlet 321 are in a non-collinear line. This design can avoid the air current after the deceleration from flowing out from the casing 3, directly blow to the second oil leak hole 13 to lead to the air current to blow the oil of second oil leak hole 13 department everywhere all, adhere to on the wall or other spare parts of bellows 1 outside.
Specifically, the flow guide passage 323 is zigzag. Has better speed reduction effect and noise reduction effect.
In particular, the outlet 321 of the housing 3 has a distance 4 from the bottom of the bellows 1. The air flow flowing out from the outlet 321 of the housing 3 can not directly impact the bottom of the air box 1, and other noises are avoided.
An integrated kitchen comprises the mute direct-exhaust air duct structure.
The above components are all standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experiments.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. A mute direct-exhaust air duct structure comprises
A bellows (1), the bellows (1) having an air inlet (11) and an air outlet (12),
the volute (2) is fixed in the air box (1), an air outlet of the volute (2) is connected with the air outlet (12), and a first oil leakage hole (21) is formed in the lowest position of the volute (2);
it is characterized by also comprising
The oil leakage device comprises a shell (3), wherein a cavity is arranged in the shell (3), an inlet (311) communicated with the cavity is formed in the upper part of the shell (3), and the inlet (311) is connected with a first oil leakage hole (21); the lower part of the shell (3) is provided with an outlet (321) communicated with the cavity, the two sides of the cavity in the width direction are provided with speed reducing plates (322) in a staggered manner, and the speed reducing plates (322) separate the cavity to form a non-straight flow guide channel (323).
2. A silent inline duct structure according to claim 1, characterized in that the chamber has a sloped guide surface (324) at the bottom, said sloped guide surface (324) decreasing from the inlet (311) towards the outlet (321).
3. A silent inline duct structure according to claim 1, wherein said outlet (321) is located at the lowest of said inclined guide surfaces (324).
4. The structure of a silent straight-row air duct according to claim 2, wherein an arc-shaped guide surface (3221) is arranged at the joint of the speed-reducing plate (322) and the inclined guide surface (324).
5. A silent inline duct structure according to claim 1, wherein said speed reduction plate (322) is inclined from said inlet (311) toward said outlet (321).
6. The structure of a silent inline duct according to claim 1, wherein said housing (3) comprises an upper cover (31) and a lower cover (32), said speed-reducing plate (322) is provided on the lower cover (32), and said speed-reducing plate (322) abuts against the inner surface of said upper cover (31) after said upper cover (31) and said lower cover (32) are closed.
7. The structure of a silent inline duct according to claim 1, wherein said flow guide channel (323) is zigzag-shaped.
8. The structure of the air channel in straight row without noise according to claim 1, wherein the lowest part of the bottom of the air box (1) is provided with a second oil leakage hole (13), and the second oil leakage hole (13) and the outlet (321) are not in the same straight line.
9. A silent inline duct structure according to claim 1, characterized in that the outlet (321) of the housing (3) is at a distance (4) from the bottom of the air box (1).
10. An integrated cooker comprising a silent inline duct structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110880402.5A CN113531623A (en) | 2021-08-02 | 2021-08-02 | Mute direct-exhaust air duct structure and integrated stove thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110880402.5A CN113531623A (en) | 2021-08-02 | 2021-08-02 | Mute direct-exhaust air duct structure and integrated stove thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113531623A true CN113531623A (en) | 2021-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110880402.5A Pending CN113531623A (en) | 2021-08-02 | 2021-08-02 | Mute direct-exhaust air duct structure and integrated stove thereof |
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| CN (1) | CN113531623A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000074440A (en) * | 1998-08-25 | 2000-03-14 | Fuji Kogyo Kk | Boot type range hood fan |
| JP2009174774A (en) * | 2008-01-24 | 2009-08-06 | Fuji Industrial Co Ltd | Range hood |
| JP2012002439A (en) * | 2010-06-17 | 2012-01-05 | Panasonic Corp | Range hood |
| CN212005832U (en) * | 2020-03-27 | 2020-11-24 | 中山百得厨卫有限公司 | Air outlet box device and integrated stove |
| CN212376959U (en) * | 2020-04-30 | 2021-01-19 | 宁波方太厨具有限公司 | Volute of centrifugal fan |
| CN215637432U (en) * | 2021-08-02 | 2022-01-25 | 火星人厨具股份有限公司 | Mute direct-exhaust air duct structure and integrated stove thereof |
-
2021
- 2021-08-02 CN CN202110880402.5A patent/CN113531623A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000074440A (en) * | 1998-08-25 | 2000-03-14 | Fuji Kogyo Kk | Boot type range hood fan |
| JP2009174774A (en) * | 2008-01-24 | 2009-08-06 | Fuji Industrial Co Ltd | Range hood |
| JP2012002439A (en) * | 2010-06-17 | 2012-01-05 | Panasonic Corp | Range hood |
| CN212005832U (en) * | 2020-03-27 | 2020-11-24 | 中山百得厨卫有限公司 | Air outlet box device and integrated stove |
| CN212376959U (en) * | 2020-04-30 | 2021-01-19 | 宁波方太厨具有限公司 | Volute of centrifugal fan |
| CN215637432U (en) * | 2021-08-02 | 2022-01-25 | 火星人厨具股份有限公司 | Mute direct-exhaust air duct structure and integrated stove thereof |
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