WO2021168716A1

WO2021168716A1 - Oil fume separator of kitchen range hood

Info

Publication number: WO2021168716A1
Application number: PCT/CN2020/076860
Authority: WO
Inventors: 何少敦; 何可彬; 苏丹滢
Original assignee: 深圳市迪尔安科技有限公司
Priority date: 2020-02-26
Filing date: 2020-02-26
Publication date: 2021-09-02

Abstract

Disclosed is an oil fume separator of a kitchen range hood, the oil fume separator comprising a flow guide grid (1) formed of flow guide plates (1.1), which are aligned, connected in series and fixed one by one, wherein left and right side walls of each flow guide plate (1.1) are respectively provided with a positioning member (1.11) for series connection; a ventilation gap is provided between two adjacent flow guide plates (1.1), the ventilation gaps form a ventilation separation channel (1.15), and the ventilation separation channel (1.15) is in a wavy zigzag state; and the lower side of the flow guide grid (1) is an oil fume inlet (1.112A), and the upper side of the flow guide grid is an oil fume outlet (1.112B). Oil fumes enter the flow guide grid (1) through the oil fume inlet (1.112A), repeatedly collides with the side wall of the flow guide plates (1.1) in a zigzag path, and is then discharged from the oil fume outlet (1.112B).

Description

Oil fume separator of kitchen range hood

Technical field

The invention relates to a kitchen range hood, in particular to an oil fume separator of a kitchen range hood.

Background technique

Range hoods, also known as range hoods, are kitchen appliances that purify the kitchen environment. The oil fume separation of the range hood is a very critical issue. At present, the actual oil fume separation rate of the range hood is not very high, which seriously affects the environmental cleanliness and the working performance of the range hood.

Summary of the invention

In order to solve the problems of the prior art, the present invention proposes an oil fume separator for a kitchen range hood. Since the oil fume separator is a diversion grid formed by aligning and arranging the diversion sheets one by one in series, it has instantaneous confinement. And the ability to absorb a large amount of smoke, and the oil fume separation rate is higher. In addition, the disassembly and assembly of the oil fume separator is easier, and it is more convenient to clean the oil stains on a daily basis.

The technical solution adopted by the present invention to solve the technical problem is: an oil fume separator for a kitchen range hood, which is characterized in that the oil fume separator is a diversion grid formed by aligning and serially connecting guide sheets. The left and right side walls of the guide sheet are provided with positioning members for series connection, and there is a ventilation gap between the adjacent guide sheets. The ventilation gap constitutes a ventilation partition, and the ventilation partition is In a tortuous state, the lower side of the diversion grid is the fume inlet and the upper side is the fume outlet. The fume enters the diversion grid through the fume inlet, and repeatedly collides with the side wall of the diversion sheet in the tortuous path Then it is discharged from the fume outlet.

In a preferred solution, the left and right side walls of the guide leaf are wavy curved surfaces, and the cross section of the guide leaf is a wave structure.

In a preferred solution, the deflector sheet is a flat straight plate structure.

In a preferred solution, the left and right side walls of the deflector sheet are further provided with a number of longitudinal partitions, and the longitudinal partitions divide the ventilation partition into a repeatedly tortuous state.

In a preferred solution, the cross section of the baffle sheet is further provided with a scallop plate.

Preferably, the positioning member is a plug pin and a positioning hole, a plug pin is provided on one side of the guide leaf and a positioning hole is provided on the other side, and the plug is inserted into the positioning hole to make the same The adjacent guide sheets are fixed in series.

Preferably, the longitudinal direction of the guide leaf is linear.

In a preferred solution, the longitudinal direction of the guide leaf is linear and at least one end is a bent structure.

In a preferred solution, the two ends of the diversion grid are respectively provided with a sleeve, the sleeve has a slot-shaped structure, and the sleeve wraps and fixes the series-connected diversion sheet.

In a preferred solution, according to the direction of the flue gas flow, the bending angles of the ventilation ducts are successively reduced.

In a preferred solution, the lower edge of the guide leaf further has a longitudinal oil drip plate.

In a preferred solution, through holes are arranged in the longitudinal direction of the guide sheet, and the through holes make the guide grid constitute a horizontal communication hole inside.

The beneficial effects of the present invention are: the present invention proposes an oil fume separator for a kitchen range hood. Since the oil fume separator is a diversion grid formed by aligning and arranging the diversion sheets one by one in series, it has instantaneous confinement. And the ability to absorb a large amount of smoke, and the oil fume separation rate is higher. In addition, the disassembly and assembly of the oil fume separator is easier, and it is more convenient to clean the oil stains on a daily basis.

Description of the drawings

Figures 1 to 5 are schematic diagrams of the structure of the first embodiment of the present invention. Figure 1 is a three-dimensional schematic diagram of the overall structure, Figure 3 is a front view of the overall structure (the direction of the arrow in Figure 3 is the flow direction of the smoke and steam); Schematic diagram of the design parameters of the ventilation divider (the direction of the arrow in Figure 5 is the flow direction of the smoke and steam).

Figures 6 and 7 are schematic diagrams of the structure of the second embodiment of the present invention. FIG. 6 is a three-dimensional schematic diagram of the overall structure, and FIG. 7 is a partial schematic diagram of the structure.

Figures 8 and 9 are schematic diagrams of the structure of the third embodiment of the present invention. Fig. 8 is a three-dimensional schematic diagram of the overall structure, and Fig. 9 is a partial schematic diagram of the structure.

Figure 10 is a schematic diagram of the design parameters of the ventilation divider in the fourth embodiment of the present invention.

Figures 11 and 12 are partial schematic diagrams of the fifth embodiment of the present invention. 11 is an enlarged schematic diagram of a partial structure, and FIG. 12 is an enlarged schematic diagram of a cross-sectional view of a partial structure.

Fig. 13 is an enlarged schematic diagram of a partial structure of the sixth embodiment of the present invention.

Figure 14 is an enlarged schematic view of a partial structural cross-section of the seventh embodiment of the present invention (the direction of the arrow in the figure is the flow direction of smoke).

15 and 16 are schematic diagrams of the structure of the eighth embodiment of the present invention. FIG. 15 is a three-dimensional schematic diagram of the overall structure, and FIG. 16 is a schematic diagram of a partial structure.

In the picture:

1. Diversion grid, 1A lower bottom surface, 1B upper top surface;

1.1, 1.2 Diversion sheet;

1.11 Positioning member, 1.11A bolt, 1.11B positioning hole;

1.12 Oval board;

1.131 wave trough, 1.132 wave crest;

1.14 corner;

1.15 Ventilation divider;

1.16 Arrange the surface;

1.17A lower edge, 1.17A1 longitudinal drip plate, 1.17B upper edge;

1.18 Longitudinal partition;

1.19 through hole;

1.110A first bending point, 1.110B second bending point, 1.110C third bending point, 1.110D fourth bending point;

1.111 card strip, 1.111A card slot;

1.112A flue gas inlet, 1.112B flue gas outlet;

1.113A, 1.113B cover, 1.113A1, 1.113A2 side wall, 1.113A3 slot, 1.113A4 slot bottom.

Detailed ways

Figures 1 to 5 are schematic diagrams of the structure of the first embodiment of the present invention. Figure 1 is a three-dimensional schematic diagram of the overall structure, Figure 3 is a front view of the overall structure (the direction of the arrow in Figure 3 is the flow direction of the smoke and steam); Schematic diagram of the design parameters of the ventilation divider (the direction of the arrow in Figure 5 is the flow direction of the smoke and steam). As shown in the figure, in this example, a fume separator for a kitchen range hood is a diversion grid 1 which is aligned and arranged in series and fixed by diversion sheets 1.1 one by one. The diversion sheets 1.1 are on the left and right sides. The wall is a wavy curved surface, the cross section of the guide leaf 1.1 is a wave structure, the left and right sides of the guide leaf 1.1 are provided with a number of positioning members 1.11 for series connection, and there is ventilation between adjacent guide plates. The ventilation gap constitutes the ventilation divider 1.15. The ventilation divider 1.15 is in a wave and tortuous state. The lower side of the diversion grid 1 is the oil fume inlet 1.112A and the upper side is the oil fume outlet 1.112B, and the oil fume enters the diversion through the oil fume inlet 1.112A The grid 1, repeatedly collides with the side wall of the guide sheet 1.1 in a tortuous path, and then is discharged from the oil fume outlet 1.112B. Figure 2 shows that in this example, the deflector sheet 1.1 has a linear structure in the longitudinal direction. The present invention suggests that because the diversion grid can form a large-volume space inside, it has the ability to instantly confine and absorb a large amount of smoke, and because the oil smoke collides with the side wall multiple times in the ventilation compartment, the oil mist adheres The probability of oil fume is greatly increased, so that the oil fume separation rate can be significantly improved.

Figure 5 shows that in this example, the ventilation duct 1.15 has 6 bending points. The present invention suggests that in other embodiments, preferably, 2-6 bending points of the ventilation divider can be selected.

The present invention suggests that considering the overall size of the oil fume separator and the collision and adhesion effect of the oil mist in the oil fume, in this example, the thickness B of the oil fume separator (that is, the height between the lower bottom surface 1A and the upper top surface 1B) can be selected as 20 mm -120mm; The following dimensions can be referred to for the ventilation divider: the bending angle α can be selected from 90°-130°; the width-to-length ratio of the ventilation divider, that is, the ratio of the width A to the bending length L is 0.2-0.5 (ie 0.2≤A/ L≤0.5); The absolute size of width A can be selected from 2.5mm-30mm. The design of the ventilation divider directly affects the ventilation effect. When the thickness of the oil fume separator is unchanged, the width A size becomes smaller, the ventilation section becomes smaller, and the ventilation resistance becomes larger; the aspect ratio A/L becomes smaller, and the ventilation resistance becomes smaller. Larger; the more bending points, the greater the ventilation resistance. The greater the ventilation resistance, the better the adhesion effect of oil mist.

Figures 2 and 4 show that, in this example, the cross-section (lateral) of the deflector sheet 1.1 is also provided with a number of slats 1.12. Fig. 4 shows that, in this example, the positioning member 1.11 for series connection is a pin 1.11A and a positioning hole 1.11B, and the positioning member 1.11 is arranged along the longitudinal gap. On one side (left side wall or right side wall) of the deflector sheet 1.1 is set a pin 1.11A, and a positioning hole 1.11B (positioning hole is a socket with a hole) is set on the corresponding position on the other side, and the pin 1.11A Insert the positioning hole 1.11B to align the guide sheets one by one and fix them in series. The present invention suggests that the cross-sectional setting of the baffle sheet 1.1 with a scallop plate 1.12 is a preferred solution of the present invention, and its purpose is to increase the strength of the baffle sheet.

The present invention suggests that, in this example, the deflector sheet 1.1 should be processed by injection molding. Therefore, the upper frame plate 1.12, the pin 1.11A, the positioning hole 1.11B, and the sheet body can all be integrally molded by injection molding. It is a preferred solution of the present invention to provide a series connection positioning member by integral injection molding on the guide sheet 1.1. The purpose is to make the guide sheet easier to align and connect in series when making the guide grid, and it can be connected according to needs. The oil fume separators with different lateral widths are formed in series.

Figures 6 and 7 are schematic diagrams of the structure of the second embodiment of the present invention. Fig. 6 is a three-dimensional schematic diagram of the overall structure, and Fig. 7 is a schematic diagram of a partial structure. As shown in the figure, the difference from the first embodiment is that in this example, the two ends of the diversion grid 1 are also provided with sheaths 1.113A and 1.113B, and the sheaths are in a slot-like structure. The figure shows that the side walls 1.113A1 and 1.113A2 of the cover 1.113A have wavy surfaces that match the adjacent guide plates (the cover 1.113B has a similar structure), and the cover wraps the series connected guide plates. fixed. In this example, after the guide sheets are aligned and connected one by one by the positioning member 1.11, the wraps 1.113A and 1.113B can be easily enclosed at the two ends of the guide grid 1. Because the guide sheet 1.1 is a single piece state before being connected in series, it is difficult to align the guide sheets one by one without the serial connection of the positioning components, and it is also difficult to enclose the covers 1.113A and 1.113B in the The two ends of the diversion grid 1. In this example, the positioning member plays the role of alignment, and the positioning member does not need to be tightly fitted; the sleeves at both ends play the role of series connection and fixation. The daily disassembly and assembly are very convenient, and the diversion grid can be easily disassembled by disassembling the jackets at both ends.

Figures 8 and 9 are schematic diagrams of the structure of the third embodiment of the present invention. Fig. 8 is a three-dimensional schematic diagram of the overall structure, and Fig. 9 is a schematic diagram of a partial structure. As shown in the figure, the difference from the second embodiment is that in this example, the longitudinal direction of the deflector sheet 1.1 is linear and one end is in a bent structure, and the deflector sheet 1.1 is in a scimitar structure.

Figure 10 is a schematic diagram of the design parameters of the ventilation divider in the fourth embodiment of the present invention. Compared with Fig. 5, the difference from the first embodiment is that in this example, according to the direction of the flue gas flow, the bending angle of the ventilation divider 1.15 becomes smaller one by one. In this example, the bending function corresponding to the first bending point 1.110A is a1, the bending function corresponding to the second bending point 1.110B is a2, and the bending function corresponding to the third bending point 1.110C is a3, and the bending function corresponding to the third bending point 1.110C is a3. The four bending point 1.110D corresponds to the bending function a4, and the angle value is a1>a2>a3>a4. In this example, the successively smaller bending angles can enable the oil fume separator to gradually capture oil mist particles with smaller and smaller particle sizes during the flow of oil fume.

Figures 11 and 12 are partial schematic diagrams of the fifth embodiment of the present invention. 11 is an enlarged schematic diagram of a partial structure, and FIG. 12 is an enlarged schematic diagram of a cross-sectional view of a partial structure. Compared with FIG. 10, the difference from the fourth embodiment is that in this example, the left and right side walls of the deflector sheet 1.1 are also provided with a number of longitudinal partitions 1.18. In this example, the lower edge 1.17A of the deflector sheet 1.1 also has a longitudinal oil dripping plate 1.17A1 (the longitudinal oil dripping plate is arranged horizontally, and the width of the plate is preferably 3-6 mm), and the longitudinal oil dripping plate 1.17A1 plays the role of oil dripping And to make the oil droplets flow to the end to gather, so that the oil stains adhering to the side wall of the guide plate can flow along the surface of the oil plate to the end of the guide plate instead of falling vertically from the lower edge 1.17A . In this example, the longitudinal partition 1.18 is provided to further improve the collision adhesion effect of the oil mist in the flue gas. The present invention suggests that in this example, since the longitudinal partition 1.18 is provided, the width-to-length ratio of the ventilation duct can be increased.

Fig. 13 is an enlarged schematic diagram of a partial structure of the sixth embodiment of the present invention. Compared with FIG. 11, the difference from the fifth embodiment is that in this example, the baffle sheet 1.1 is further arranged with through holes 1.19 arranged in a longitudinal direction. The through hole 1.19 makes the diversion grid 1 internally constitute a horizontal communication hole, so that the various guide sheets communicate with each other, so that the negative pressure of each ventilation compartment is balanced, and each ventilation compartment is in the flow process of oil fume. Play a synergistic effect.

FIG. 14 is an enlarged schematic diagram of a partial structure cross-section of the seventh embodiment of the present invention. Compared with FIG. 12, the difference from the fifth embodiment is that in this example, the deflector sheet 1.1 has a flat straight plate structure. A number of longitudinal partitions 1.18 are arranged to separate the linear ventilation partitions formed between the adjacent guide sheets 1.1 and 1.2 into a repeatedly tortuous state.

15 and 16 are schematic diagrams of the structure of the eighth embodiment of the present invention. Figure 15 is a three-dimensional schematic diagram of the overall structure, and Figure 16 is an enlarged schematic diagram of a partial structure. The difference from the second embodiment is that, in this example, the upper top surface 1B and the lower bottom surface 1A of the diversion grid 1 are respectively provided with clamping strips 1.111 transversely. Figure 16 shows that the array on the card strip 1.111 is provided with 1.111A card slots. The 1.111A card slot is locked and fixed with the lower edge 1.17A and the upper edge 1.17B of the deflector sheet 1.1.

The present invention reminds that the “horizontal” and “vertical” mentioned in the present invention are not equal to the mathematical concepts of “horizontal (0 degrees)” or “vertical (90 degrees)”, and are only used to explain the technical content of the present invention. The implementation is not limited to "horizontal (0 degrees)" or "vertical (90 degrees)" in the mathematical sense. Moreover, the above are only some of the preferred embodiments listed in the present invention. In addition, according to the technical solution proposed by the present invention, the cross-sectional shape, the longitudinal structure, the structure of the positioning member, the sheath, the clip, etc. of the deflector sheet can also be adjusted accordingly to realize more embodiments. All equivalent replacements or adjustments or improvements made on the basis of the technical solution proposed by the present invention should be included in the protection scope of the present invention.

Claims

An oil fume separator for a kitchen range hood, which is characterized in that the oil fume separator is a diversion grid formed by aligning and serially connecting diversion sheets one by one, and the left and right sides of the diversion sheet The wall is provided with a positioning member for series connection, and there is a ventilation gap between adjacent guide sheets. The ventilation gap constitutes a ventilation partition, the ventilation partition is in a tortuous state, and the lower side of the guide grid The oil fume inlet is the oil fume outlet and the upper side is the oil fume outlet. The oil fume enters the diversion grid through the oil fume inlet, repeatedly collides with the side wall of the deflector sheet in a tortuous path, and then is discharged from the oil fume outlet.
The oil fume separator of a kitchen range hood according to claim 1, wherein the left and right side walls of the guide leaf are wavy curved surfaces, and the cross section of the guide leaf is a wave structure.
The fume separator for a kitchen range hood according to claim 1, wherein the guide leaf is a flat straight structure, and the left and right side walls of the guide leaf are also provided with a number of longitudinal partitions. The longitudinal partition divides the ventilation partition into a repeatedly tortuous state.
The oil fume separator of a kitchen range hood according to claim 2, wherein the left and right side walls of the guide leaf are also provided with a plurality of longitudinal partitions, and the longitudinal partitions separate the ventilation The road is divided into repeated tortuous states.
The oil fume separator of a kitchen range hood according to claim 2 or 3, wherein the positioning member is a pin and a positioning hole, and a pin is provided on one side of the guide leaf and the other is on the other side. A positioning hole is provided at the corresponding position on the side, and the plug is inserted into the positioning hole to make the adjacent guide sheets connected in series and fixed.
The oil fume separator for a kitchen range hood according to claim 2 or 3, wherein the longitudinal direction of the guide leaf is linear and at least one end is in a bent structure.
The oil fume separator for a kitchen range hood according to claim 2 or 3, characterized in that, both ends of the diversion grid are respectively provided with a cover, and the cover is a groove-shaped structure, so The wrapper wraps and fixes the series-connected guide sheets.
The oily fume separator of a kitchen range hood according to claim 2, wherein the bending angle of the ventilation partition is successively reduced according to the direction of the flue gas flow.
The oil fume separator of a kitchen range hood according to claim 2 or 3, wherein the lower edge of the guide leaf further has a longitudinal oil dripping plate.
The oil fume separator for a kitchen range hood according to claim 2 or 3, wherein the guide leaf is further arranged with through holes arranged in the longitudinal direction, and the through holes make the guide grid internally formed Lateral communication hole.