CN209943218U

CN209943218U - Steam cleaning structure of range hood

Info

Publication number: CN209943218U
Application number: CN201920603544.5U
Authority: CN
Inventors: 卢楚鹏; 蒋磊; 杨文国
Original assignee: Guangdong Vanward New Electric Co Ltd
Current assignee: Guangdong Vanward New Electric Co Ltd
Priority date: 2019-04-28
Filing date: 2019-04-28
Publication date: 2020-01-14
Anticipated expiration: 2029-04-28

Abstract

The utility model discloses a steam cleaning structure of a range hood, the range hood comprises a wind cabinet (1) with an air inlet and an impeller (2) arranged in the wind cabinet (1), the steam cleaning structure comprises a water supply device, a heating device and a steam spray pipe (3) which are sequentially connected through a pipeline, and is characterized in that the steam spray pipe (3) traverses the inside of the wind cabinet (1) and is arranged at the outer side of the impeller (2), the steam spray pipe (3) comprises a steam spraying part (31), and a plurality of spray holes (32) are arranged on the side wall of the steam spraying part (31) along the axial direction of the steam spraying part (31); the impeller (2) comprises a plurality of arc-shaped blades (21), and the axis of the spray hole (32) is tangent to the arc-shaped outer side wall of each blade (21). Utilize the utility model discloses can fully wash the inside wall and the lateral wall of impeller to can reduce the influence that sprays steam to the inside flow field of range hood organism.

Description

Steam cleaning structure of range hood

Technical Field

The utility model relates to a range hood's self-cleaning technical field especially relates to a range hood's steam washs structure.

Background

In the use process of the range hood, a large amount of oil stains are accumulated in the body of the range hood and on the impeller, the oil stains are not beneficial to the cleanness and the sanitation of the range hood, and the oil stains on the impeller can influence the rotating speed of the impeller and the use effect of the range hood. With the continuous progress of the self-cleaning technology of the range hood, steam cleaning is widely applied to the self-cleaning field of the range hood, and the technology is mature day by day. The basic principle of steam cleaning is that a steam generator generates steam, the steam is conveyed to a nozzle at the tail end of a spray pipe, the steam is sprayed out of the nozzle rapidly, stubborn oil stains on the surface of an impeller are softened by high-temperature steam, and then high-pressure washing is carried out, so that the purpose of cleaning the impeller is achieved.

However, the existing steam cleaning structure has the following defects that 1, the inner side and the outer side of the impeller cannot be cleaned sufficiently by steam, and the cleaning effect is not uniform; 2. the steam sprayed out by the nozzle easily influences the internal flow field of the range hood body.

Therefore, further improvements are needed with respect to the current steam cleaning structure.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a range hood's steam washs structure can fully wash the inside wall and the lateral wall of impeller to can reduce the influence that sprays steam to the inside flow field of range hood organism.

In order to achieve the above object, the present invention provides a steam cleaning structure of a range hood, the range hood includes a wind cabinet having an air inlet and an impeller disposed inside the wind cabinet, the steam cleaning structure includes a water supply device, a heating device and a steam spray pipe sequentially connected through a pipeline, the steam spray pipe traverses the inside of the wind cabinet and is disposed outside the impeller, the steam spray pipe includes a steam spraying portion, and a plurality of spray holes are disposed on a side wall of the steam spraying portion along an axial direction of the steam spraying portion; the impeller comprises a plurality of arc-shaped blades, and the axis of the hole of the spray hole is tangent to the outer walls of the arc-shaped sides of the blades.

Preferably, the minimum distance between the spray hole and the arc-shaped side outer wall of the blade is 8-40 mm.

Preferably, the steam injection part of the steam injection pipe is arranged parallel to the central axis of the impeller.

Preferably, the wind cabinet adopts a volute structure, and the steam spray pipe is arranged close to a volute tongue of the wind cabinet.

Preferably, the steam spray pipe is L-shaped, and comprises a bending part perpendicular to the steam spraying part; one end of the steam spray pipe, which is close to the bent part, is connected with the heating device, and the other end of the steam spray pipe is a closed end.

Preferably, the two opposite side walls of the air cabinet are respectively provided with an installation through hole for installing the steam spray pipe, the bent part of the steam spray pipe is positioned outside the air cabinet, and the whole or part of the closed end of the steam spray pipe penetrates through the installation through hole and extends out of the air cabinet.

Preferably, the closed end of the steam nozzle has a tapered outer diameter.

Preferably, the steam cleaning structure of the range hood further comprises a fixing frame for positioning the steam spray pipe, the fixing frame is fixedly connected to the outer wall of the wind cabinet, and the fixing frame limits the displacement of the steam spray pipe along each direction.

Preferably, the fixing frame comprises a U-shaped groove, and the U-shaped groove partially or completely surrounds the bent portion of the steam nozzle.

Preferably, the range hood is including locating the air inlet circle of the air intake department of wind cabinet, be equipped with on the air inlet circle and be used for the installation the positioning hole of steam spray tube, the steam spray tube passes in proper order positioning hole, installation through-hole stretch into in the wind cabinet.

Above-mentioned technical scheme provides a range hood's steam washs structure, compares with prior art, and its beneficial effect includes: the steam spray pipe of the utility model can fully clean the outer wall of the arc side of the blade of the impeller, and when the impeller rotates, high-pressure liquid sprayed at high speed has better cleaning effect on the inner side wall of the blade after being refracted; in addition, the hole axis of the spraying hole is tangent to the outer wall of the arc side of the blade, so that the steam sprayed by the spraying hole flows to be tangent to the outer wall of the arc side of the blade, and the adverse effect on the flow field in the wind cabinet when the steam is sprayed by the steam spraying pipe can be reduced.

Drawings

Fig. 1 is a front view of a range hood using the present invention;

FIG. 2 is a top view of a range hood utilizing the present invention;

FIG. 3 is a schematic cross-sectional view A-A of FIG. 1;

FIG. 4 is a schematic cross-sectional view B-B of FIG. 2;

fig. 5 is a schematic cross-sectional view of C-C in fig. 2.

The air conditioner comprises a fan cabinet 1, a fan cabinet 11, a fan cabinet front plate 12, a fan cabinet rear plate 13, a volute tongue 2, an impeller 21, a blade 3, a steam spray pipe 31, a steam spray part 32, a spray hole 33, a bent part 34, a closed end 4, a mounting through hole 5, a fixing frame 6, an air inlet ring and a positioning through hole 7.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1-5, the present invention provides a steam cleaning structure of a range hood, the range hood includes a wind cabinet 1 having an air inlet and an impeller 2 disposed inside the wind cabinet 1, the steam cleaning structure includes a water supply device, a heat generating device and a steam nozzle 3 sequentially connected through a pipeline, the steam nozzle 3 traverses the inside of the wind cabinet 1 and is disposed outside the impeller 2, the steam nozzle 3 includes a steam spraying portion 31, and a plurality of spray holes 32 are disposed on a side wall of the steam spraying portion 31 along an axial direction of the steam spraying portion 31; the impeller 2 comprises a plurality of arc-shaped blades 21, and the hole axis of the spray hole 32 is tangent to the outer wall of the arc-shaped side of each blade 21.

Based on the steam cleaning structure with the technical characteristics, the steam spray pipe 3 can fully clean the outer wall of the arc side of the blade of the impeller 2, and when the impeller 2 rotates, high-pressure liquid sprayed at high speed has a good cleaning effect on the inner side wall of the blade after being refracted; in addition, the axis of the hole passing through the jet hole 32 is tangent to the arc-shaped outer side wall of the blade, so that the flow direction of the steam jetted by the jet hole 32 is tangent to the arc-shaped outer side wall of the blade, and the adverse effect on the flow field in the wind cabinet 1 when the steam is jetted by the steam jet pipe 3 can be reduced.

Further, the minimum distance between the nozzle hole 32 and the arc-shaped side outer wall of the vane 21 is 8 mm to 40 mm. Under the distance range, the force and the range of the steam sprayed from the spray holes 32 to wash the blades of the impeller 2 can meet the cleaning requirement, and the installation stability requirement of the steam spray pipe 3 can be met. Preferably, the minimum distance between the nozzle hole 32 and the arc-shaped side outer wall of the vane 21 is 10 mm.

The steam spray pipe 3 is arranged inside the wind cabinet 1 and outside the impeller 2, and the steam spray part 31 is arranged in parallel to the direction of the central shaft of the impeller. The air cabinet 1 adopts a volute structure, and the steam spray pipe 3 is arranged close to a volute tongue 13 of the air cabinet 1. The steam nozzle 3 is arranged at a position as close to the volute tongue 13 as possible, so that the nozzle holes 32 can be closer to the blades 21, and the adverse effect of the steam nozzle 3 on the flow field in the wind cabinet can be reduced.

The steam nozzle 3 is provided with a plurality of spray holes 32 at one side close to the blades for spraying high-pressure liquid. Further, the plurality of nozzle holes 32 are uniformly distributed in the steam injection portion 31, and the aperture of the plurality of nozzle holes 32 is the same. The steam spray pipe 3 is L-shaped, the steam spray part 31 is parallel to the central axis of the impeller 2, the steam spray pipe 3 further comprises a bending part 33 perpendicular to the steam spray part 31, one end of the steam spray pipe 3 close to the bending part 33 is connected with the heating device, and the other end of the steam spray pipe 3 is a closed end 34, so that high-pressure liquid introduced into the steam spray pipe 3 can only be sprayed out through the spray holes 32.

And the two opposite side walls of the air cabinet 1 are respectively provided with a mounting through hole 4 for mounting the steam spray pipe 3, and the steam spray pipe 3 penetrates through the mounting through hole 4 and is erected in the air cabinet 1. Specifically, the mounting through holes 4 are formed in the front plate 11 and the rear plate 12 of the wind cabinet 1, and the steam spray pipe 3 penetrates through the two mounting through holes. The bent portion 33 of the steam nozzle 3 is located outside the wind cabinet 1, that is, the bent portion 33 protrudes from the wind cabinet front plate 81, and all or part of the closed end 34 of the steam nozzle 3 passes through the installation through hole 4 and extends out of the wind cabinet 1. Through the structure, the steam spray pipe 3 can be stably installed in the air cabinet 1, and the influence of the installation of the steam spray pipe 3 on the internal flow field of the air cabinet is reduced.

Preferably, the outer diameter of the closed end 34 of the steam nozzle 3 is tapered such that the closed end 34 is tapered. The conical closed end 34 is mounted in the mounting through hole 4, so that a better sealing effect can be realized.

The steam cleaning structure of the range hood further comprises a fixing frame 5 used for positioning the steam spray pipe 3, the fixing frame 5 is fixedly connected to the outer wall of the air cabinet 1, and the fixing frame 5 limits the displacement of the steam spray pipe 3 in all directions, including the axial horizontal displacement of the steam spray part 31 and the axial rotary displacement of the steam spray part 31. Preferably, the fixing frame 5 includes a U-shaped groove, the U-shaped groove is engaged with the bending portion 33 of the steam nozzle 3, and the U-shaped groove partially or completely surrounds the bending portion 33 of the steam nozzle 3. Through the fixing frame 5 is used for limiting the axial horizontal position of the bent part 33 and is matched with the conical closed end 34, the stable and effective positioning of the steam spray pipe 3 is realized, and the steam spray pipe 3 and the installation through hole 4 are good in sealing performance. As shown in fig. 4, the fixing frame 5 is connected to the outer wall of the wind cabinet 1 by screws.

The range hood is including locating the air inlet circle 6 of the air intake department of wind cabinet 1, be equipped with on the air inlet circle 6 and be used for the installation positioning hole 7 of steam spray tube 3, steam spray tube 3 passes in proper order positioning hole 7, installation through-hole 4 stretch into in the wind cabinet 1. When the air inlet ring 6 is fixed on the air cabinet 1, the air cabinet 1 plays a role in fixing the steam spray pipe 3.

To sum up, the steam cleaning structure of the range hood of the utility model has simple and reasonable structure, and by skillfully designing the fixing structure and the injection mode of the steam spray pipe 3, the good injection effect on the impeller 2 can be realized, and the adverse effect of the steam spray pipe 3 on the flow field in the wind cabinet can be reduced; the steam jet pipe 3 can be stably installed, and the influence of the installation of the steam jet pipe 3 on the internal flow field of the air cabinet and the sealing performance of the air cabinet can be reduced.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A steam cleaning structure of a range hood comprises a wind cabinet (1) with an air inlet and an impeller (2) arranged in the wind cabinet (1), and the steam cleaning structure comprises a water supply device, a heating device and a steam spray pipe (3) which are sequentially connected through a pipeline, and is characterized in that the steam spray pipe (3) traverses the inside of the wind cabinet (1) and is arranged on the outer side of the impeller (2), the steam spray pipe (3) comprises a steam spraying part (31), and a plurality of spray holes (32) are formed in the side wall of the steam spraying part (31) along the axial direction of the steam spraying part (31); the impeller (2) comprises a plurality of arc-shaped blades (21), and the axis of the spray hole (32) is tangent to the arc-shaped outer side wall of each blade (21).

2. The steam cleaning structure of a range hood according to claim 1, wherein the minimum distance between the spray hole (32) and the arc-shaped side outer wall of the blade (21) is 8 mm-40 mm.

3. The steam cleaning structure of the range hood according to claim 1, wherein the steam spraying portion (31) of the steam spraying pipe (3) is arranged in parallel to the central axis of the impeller (2).

4. The steam cleaning structure of the range hood according to claim 1, wherein the wind cabinet (1) adopts a volute structure, and the steam nozzle (3) is disposed near a volute tongue (13) of the wind cabinet (1).

5. The steam cleaning structure of the range hood according to any one of claims 1 to 4, wherein the steam nozzle (3) is L-shaped, and the steam nozzle (3) comprises a bending part (33) perpendicular to the steam spraying part (31); one end of the steam spray pipe (3) close to the bending part (33) is connected with the heating device, and the other end of the steam spray pipe (3) is a closed end (34).

6. The steam cleaning structure of the range hood according to claim 5, wherein the two opposite side walls of the wind cabinet (1) are respectively provided with a mounting through hole (4) for mounting the steam nozzle (3), the bent portion (33) of the steam nozzle (3) is located outside the wind cabinet (1), and all or part of the closed end (34) of the steam nozzle (3) passes through the mounting through hole (4) and extends out of the wind cabinet (1).

7. The steam cleaning structure of a range hood according to claim 6, wherein the outer diameter of the closed end (34) of the steam nozzle (3) is gradually reduced to make the closed end (34) in a conical shape.

8. The steam cleaning structure of the range hood according to claim 7, further comprising a fixing frame (5) for positioning the steam nozzle (3), wherein the fixing frame (5) is fixedly connected to the outer wall of the wind cabinet (1), and the fixing frame (5) limits the displacement of the steam nozzle (3) along various directions.

9. The steam cleaning structure of a range hood according to claim 8, wherein the fixing frame (5) comprises a U-shaped groove (51), and the U-shaped groove (51) surrounds a part or all of the bending part (33) of the steam nozzle (3).

10. The steam cleaning structure of the range hood according to claim 4, wherein the range hood includes an air inlet ring (6) disposed at an air inlet of the wind cabinet (1), the air inlet ring (6) is provided with a positioning through hole (7) for installing the steam nozzle (3), and the steam nozzle (3) sequentially passes through the positioning through hole (7) and the installation through hole (4) and extends into the wind cabinet (1).