CN219530953U - Lampblack absorber and flue gas clean-up system - Google Patents

Abstract

The utility model relates to the technical field of flue gas purification, and particularly discloses a range hood and a flue gas purification system. The oil leakage device is arranged at the oil drain hole of the range hood, and is used for preventing smoke from directly entering the fan from the oil drain hole without passing through the purification treatment system and being pumped out and discharged, and the oil leakage device does not obstruct the oil stain collected by electrostatic adsorption from flowing out of the shell. Equivalent to the action of a one-way valve.

Description

Lampblack absorber and flue gas clean-up system

Technical Field

The utility model relates to the technical field of flue gas purification, in particular to a range hood and a flue gas purification system.

Background

The range hood is widely applied to commercial kitchens and unit canteens, and clean smoke is discharged from an outlet after the smoke is absorbed by the smoke purifying device after entering from an inlet of the range hood. Along with the extension of the service time, more and more oil smoke is accumulated in the smoke purifying device, and fluid liquid oil is formed in the smoke ventilator. In order to facilitate the discharge of the oil smoke in the range hood, an oil drain hole is arranged below the smoke purifying device so as to avoid excessive accumulated oil smoke in the range hood. Under the condition of normal fume suction, fume enters from an inlet of the fume exhauster, and then the fume is sucked into the fume purifying device to be adsorbed with fume. However, due to the arrangement of the oil drain hole, the smoke possibly directly enters the range hood in the oil drain hole, and at the moment, the smoke does not enter the smoke purifying device, and the smoke carrying the smoke pollutes a fan in the range hood, so that the cleaning period of the range hood is greatly shortened.

Accordingly, the prior art is still in need of improvement and development.

Disclosure of Invention

The utility model discloses a range hood and a smoke purification system, which are used for solving the problem that smoke directly enters the range hood to pollute the range hood.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a range hood, comprising:

the air guide structure is internally provided with an air guide flow channel for guiding the outside flue gas;

a purification structure comprising:

the shell is provided with an inlet and an outlet, the inlet is communicated with the air guide flow channel, and the bottom of the shell is provided with an oil drain hole;

the electrostatic field is arranged in the shell and is arranged at the upstream of the oil discharge hole, and is used for adsorbing the smoke flowing into the shell from the air guide flow channel, and the smoke passing through the electrostatic field is discharged from the outlet; and

and the oil leakage device is arranged in the oil drain hole and is used for preventing external smoke from entering the shell.

Preferably, the oil leakage device is a flexible oil leakage device, the oil leakage device is provided with an upper opening and a lower opening, the upper opening is communicated with the lower opening to form an oil drainage channel, the lower opening is a normally closed opening, and the lower opening is used for being opened during oil drainage.

Preferably, a plurality of oil drain holes are provided, and the number of oil leakage devices corresponds to the number of oil drain holes.

Preferably, the air guide structure comprises a shell and a first air guide plate, wherein an opening of the shell is downward, the shell is installed on the bottom surface of the shell, the side wall of the first air guide plate is abutted to the inner wall of the shell, and the air guide flow channel is formed by encircling the shell and the first air guide plate.

Preferably, the shell comprises a side plate, a top plate and a bottom plate, wherein the top plate is fixedly connected with the bottom surface of the shell, the bottom plate is bent, and the bottom plate and the side plate are enclosed to form an oil drainage channel;

the first air guide plate is positioned below the oil leakage device, the first air guide plate inclines towards the oil discharge flow channel, and the first air guide plate is used for guiding oil stains discharged by the oil leakage device into the oil discharge flow channel.

Preferably, the air guide structure further comprises a second air guide plate, the second air guide plate is arranged between the oil leakage device and the first air guide plate, and the second air guide plate is used for reducing the size of the smoke inlet of the air guide channel.

Preferably, the second air guide plate comprises a horizontal portion and an inclined portion, the inclined portion is abutted to the bottom surface of the top plate, an air inlet hole is formed in the inclined portion, and the horizontal portion extends to the upper portion of the first air guide plate.

Preferably, a drain hole is arranged on the bottom plate.

Preferably, an access door is provided on the housing.

The utility model also discloses a smoke purification system, which comprises the range hood.

Compared with the prior art, the utility model has the beneficial effects that:

according to the range hood and the smoke purification system provided by the utility model, the air guide structure is arranged, so that the external smoke can enter the purification structure to be purified by the electrostatic field. Through set up the oil leak ware on the casing to make the oil drain hole on the casing can be closed when not discharging oil, and then avoid the flue gas to directly get into the casing and directly discharge after not passing through electrostatic field, make the flue gas purification efficiency of lampblack absorber promote greatly.

Drawings

Fig. 1 is a schematic structural diagram of a first view angle of a range hood according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a second view angle of a range hood according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of a range hood without a side plate according to an embodiment of the present utility model;

fig. 4 is a schematic diagram of a first cross-sectional structure of a range hood according to an embodiment of the present utility model;

fig. 5 is a schematic diagram of a second cross-sectional structure of a range hood according to an embodiment of the present utility model;

FIG. 6 is a schematic diagram of an oil leakage device according to an embodiment of the present utility model;

fig. 7 is an enlarged view of the a portion structure of fig. 2.

Description of main reference numerals: 10-air guide structure, 11-air guide channel, 12-shell, 121-side plate, 122-top plate, 123-bottom plate, 1231-drain hole, 124-drain channel, 13-first air guide plate, 14-second air guide plate, 141-horizontal part, 142-inclined part, 1421-air inlet, 15-gap, 20-purifying structure, 21-shell, 211-inlet, 212-outlet, 213-drain hole, 214-access door, 22-electrostatic field, 23-oil leakage device, 231-upper opening, 232-lower opening.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish between different devices, elements, or components (the particular species and configurations may be the same or different), and are not used to indicate or imply the relative importance and number of devices, elements, or components indicated. Unless otherwise indicated, the meaning of "a plurality" is two or more.

The technical scheme of the utility model will be further described with reference to the examples and the accompanying drawings.

Examples

After purifying a large amount of smoke (oil smoke), the electrostatic field of the range hood adsorbs a large amount of oil dirt on a cathode plate or a cathode tube of the electrostatic field, and when the amount of the oil dirt reaches a certain degree, the oil dirt needs to be guided out of a shell provided with the electrostatic field, so that the oil dirt needs to be discharged from the shell.

In order to conveniently discharge oil stains, an oil discharge hole is usually arranged on the shell so as to conveniently discharge the oil stains in the shell. Since the upstream of the electrostatic field needs to be directly connected to the inlet of the casing, the oil drain hole is usually provided at a position downstream of the electrostatic field. However, after the oil drain hole is formed, part of smoke of the range hood may directly enter the shell from the oil drain hole during operation, the smoke sucked into the shell through the oil drain hole is directly pumped away by the fan arranged at the downstream of the electrostatic field, and part of smoke which does not clear the smoke is adsorbed on the impeller of the fan in the process of passing through the fan, so that a user needs to frequently clean the range hood.

The present utility model provides a range hood, which is provided with an oil leakage device 23 at an oil drain hole 213, wherein the oil leakage device 23 is used for preventing external smoke from directly entering into a casing 21, but the oil leakage device 23 does not prevent oil dirt from flowing out of the casing 21.

Specifically, referring to fig. 1 and 3, the range hood provided by the present utility model includes an air guiding structure 10 and a purifying structure 20, wherein the air guiding structure 10 is provided with an air guiding channel 11, and the air guiding channel 11 is used for guiding oil-containing flue gas into the purifying structure 20 (in the equipment) for flue gas purification. The purifying structure 20 comprises a casing 21, an inlet 211 and an outlet 212 are arranged on the casing 21, the inlet 211 of the casing 21 is communicated with the air guide channel 11, when oil-containing flue gas enters the casing 21 from the inlet 211 of the casing 21, the oil-containing flue gas is purified by an electrostatic field 22 arranged in the casing 21, so that the oil smoke and dust in the flue gas are adsorbed on an anode plate, and the purified flue gas is discharged from the outlet 212 of the casing 21.

Referring to fig. 4, the bottom of the casing 21 is further provided with an oil drain hole 213 to facilitate drainage of the oil dirt adhered to the inner wall of the casing 21 and the oil dirt adsorbed by the electrostatic field 22. The oil drain hole 213 is generally disposed downstream of the electrostatic field 22 to facilitate drainage of oil dirt adsorbed in the electrostatic field 22.

The purifying structure 20 further comprises an oil leakage device 23, the oil leakage device 23 is arranged in the oil drain hole 213, and the oil leakage device 23 is used for placing external smoke to directly enter the shell 21, so that the smoke is purified by entering the electrostatic field 22 from the inlet 211 of the shell 21, the fan of the range hood is further ensured not to be polluted by unpurified smoke, and the cleaning period of the range hood is further prolonged.

Specifically, referring to fig. 4 and 6, the oil leakage device 23 is a flexible oil leakage device 23, an upper portion of the oil leakage device 23 is engaged with the oil drain hole 213, an upper opening 231 and a lower opening 232 are provided in the oil leakage device 23, and the upper opening 231 and the lower opening 232 communicate with each other to form the oil drain flow passage 124. The upper opening 231 of the oil leakage device 23 is arranged in the casing 21, the lower opening 232 of the oil leakage device 23 is arranged below the casing 21, the upper opening 231 of the oil leakage device 23 is a normally open opening, the lower opening 232 of the oil leakage device 23 is arranged according to the characteristics of flexible materials, and the side wall of the oil leakage device 23 is tightly attached to the lower opening 232.

When a certain amount of oil dirt is stored in the casing 21, the oil dirt flows to the upper opening 231 of the oil leakage device 23, and at this time, the oil dirt applies a pressure to the side wall of the lower opening 232 of the oil leakage device 23, so that the lower opening 232 of the oil leakage device 23 is opened, and the oil dirt can smoothly fall from the oil leakage device 23. When the casing 21 is not discharging oil, the lower opening 232 of the oil leakage device 23 is in a normally closed state, and the flue gas cannot prop the side wall of the lower opening 232 of the oil leakage device 23, so that the flue gas is prevented from directly entering the casing 21 from the oil discharge hole 213.

In one embodiment of the present utility model, the plurality of oil drain holes 213 are generally provided to increase the oil drain rate of the casing 21.

Of course, in an embodiment of the present utility model, the number of oil spillers 23 should be corresponding to the number of oil drain holes 213 so that oil smoke does not enter the casing 21 from the oil drain holes 213.

Referring to fig. 2 and 4, the air guiding structure 10 includes a housing 12 and a first air guiding plate 13, the opening of the housing 12 is downward, and the housing 12 is mounted on the bottom surface of the housing 21, and the housing 12 is usually mounted above a smoke source (such as a frying pan, etc.), so that the smoke can quickly enter the housing 21 through the housing 12 after being generated. The side wall of the first air guide plate 13 is abutted against the inner wall of the shell 12, the first air guide plate 13 is arranged at the middle part or the lower part of the shell 12, an air guide flow passage is surrounded between the shell 12 and the first air guide plate 13, and flue gas enters the shell 21 through the air guide flow passage so as to be purified by the electrostatic field 22.

The housing 12 includes a side plate 121, a top plate 122 and a bottom plate 123, the top plate 122 is fixedly connected to the bottom surface of the housing 21, and as shown in fig. 2, the top plate 122 is provided with a through hole at an inlet 211 of the housing 21, so that smoke can smoothly enter the housing 21. The first air guide plate 13 and the two side plates 121 are abutted, and the bottom plate 123 is bent downwards to form a U-shaped oil drain channel 124 with an upper opening 231 as shown in fig. 4 or 5.

In an embodiment of the present utility model, the first air guide plate 13 is located below the oil leakage device 23, and the first air guide plate 13 is inclined towards the oil drain channel 124, and the first air guide plate 13 is used for guiding the oil dirt discharged by the oil leakage device 23 into the oil drain channel 124.

Of course, in an embodiment of the present utility model, a side of the first air guide plate 13 near the oil drain channel 124 may be abutted against the casing 21 or not abutted against the casing 21, and when a side of the first air guide plate 13 near the oil drain channel 124 is abutted against the casing 21, a plurality of through holes are required to be provided on the first air guide plate 13 above the oil drain channel 124, so that the oil dirt on the first air guide plate 13 can smoothly flow into the oil drain channel 124.

Preferably, in an embodiment of the present utility model, the air guiding structure 10 further includes a second air guiding plate 14, the second air guiding plate 14 is disposed between the oil leakage device 23 and the first air guiding plate 13, and the second air guiding plate 14 is used for guiding the oil dirt falling at the oil leakage device 23 far from the first air guiding plate 13 to the first air guiding plate 13. And there is less interval (the inlet flue of air guide runner is smaller) between second air guide plate 14 and the first air guide plate 13, and then can possess sufficient suction under the unchangeable circumstances of the power of fan of range hood, and then makes the oil smoke get into in the flue gas passageway with faster velocity of flow.

Meanwhile, most of the smoke is led in from the position between the first air guide plate 13 and the second air guide plate 14 (the smoke inlet), and the smoke is not accumulated at the illuminating lamp arranged on the bottom surface of the top plate 122 of the shell 12, so that the illuminating lamp is prevented from being polluted by the smoke.

Specifically, referring to fig. 4 and 5, the second air guide plate 14 includes a horizontal portion 141 and an inclined portion 142, wherein the inclined portion 142 abuts against the bottom surface of the top plate 122, an air inlet hole 1421 is provided on the inclined portion 142, and the horizontal portion 141 extends above the first air guide plate 13. When the oil drain holes 213 are provided in plurality, a part of the oil drain is located above the first air guide plate 13 as shown in fig. 4, and the second air guide plate 14 is also capable of collecting and guiding the oil dirt falling at the oil drain to the first air guide plate 13.

Further, referring to fig. 7, a portion of the horizontal portion 141 near the first air guide plate 13 is rolled up, and the horizontal portion 141 is not rolled up at both sides near the side plate 121, and the oil dirt falling down at the oil leakage device 23 is received by the horizontal portion 141 and flows therefrom onto the first air guide plate 13.

The rolling part of the horizontal part 141 is fixedly connected with a guiding part, and the guiding part and the first air guide plate 13 are obliquely arranged downwards at the same angle, so that most of oil stains in the smoke are gathered on the first air guide plate 13, and the oil stains are collected conveniently.

Meanwhile, a gap 15 is formed between the guide part and the part where the rolled horizontal part 141 is not provided, and the greasy dirt on the second air guide plate 14 falls to the first air guide plate 13 through the gap 15.

The air inlet 1421 on the inclined part 142 can quickly suck a small amount of smoke at the illumination lamp, so that the illumination lamp is better prevented from being polluted by the smoke.

Of course, the bottom plate 123 is provided with a drain hole 1231 to smoothly drain the oil dirt in the oil drain channel 124.

As shown in fig. 1, an access door 214 is also provided on the housing 21, the access door 214 being generally positioned with respect to the electrostatic field 22 to facilitate maintenance and repair of the electrostatic field 22. The access door 214 is hinged with the housing 21, and sealing rubber strips are arranged on the access door 214, so that leakage between the access doors 214 can not occur when the access door 214 is closed.

The utility model also discloses a smoke purifying system which comprises the smoke ventilator and has all the advantages of the smoke ventilator.

It will be understood that equivalents and modifications will occur to those skilled in the art based on the present utility model and its spirit, and all such modifications and substitutions are intended to be included within the scope of the present utility model.

Claims (10)

1. A range hood, comprising:

the air guide structure is internally provided with an air guide channel for guiding the external oily smoke into the equipment;

a purification structure comprising:

the shell is provided with an inlet and an outlet, the inlet is communicated with the air guide flow channel, and the bottom of the shell is provided with an oil drain hole;

an electrostatic field installed in the casing and arranged at the upstream of the oil discharge hole, and used for purifying the oil-containing flue gas, and the purified flue gas is discharged from the outlet;

and the oil leakage device is arranged in the oil drain hole and is used for preventing the flue gas from directly entering the shell without purification.

2. The range hood of claim 1, wherein the oil spiller is a flexible oil spiller, the oil spiller is provided with an upper opening and a lower opening, the upper opening is communicated with the lower opening to form an oil drain flow passage, the lower opening is a normally closed opening, and the lower opening is used for being opened during oil drain.

3. The range hood of claim 1, wherein a plurality of oil drain holes are provided, and the number of oil leakage devices corresponds to the number of oil drain holes.

4. A range hood according to claim 3, wherein the air guide structure comprises a housing and a first air guide plate, the opening of the housing is downward, the housing is mounted on the bottom surface of the housing, the side wall of the first air guide plate abuts against the inner wall of the housing, and the air guide channel is defined between the housing and the first air guide plate.

5. The range hood according to claim 4, wherein the housing comprises a side plate, a top plate and a bottom plate, the top plate is fixedly connected with the bottom surface of the housing, the bottom plate is bent, and the bottom plate and the side plate are enclosed to form an oil drain flow channel;

the first air guide plate is positioned below the oil leakage device, the first air guide plate inclines towards the oil discharge flow channel, and the first air guide plate is used for guiding oil stains discharged by the oil leakage device into the oil discharge flow channel.

6. The range hood of claim 5, wherein the air guide structure further comprises a second air guide plate, the second air guide plate is disposed between the oil leakage device and the first air guide plate, and the second air guide plate is used for reducing the size of the smoke inlet of the air guide channel.

7. The range hood according to claim 6, wherein the second air guide plate comprises a horizontal portion and an inclined portion, the inclined portion is abutted to the bottom surface of the top plate, an air inlet hole is formed in the inclined portion, and the horizontal portion extends to above the first air guide plate.

8. The range hood of claim 7, wherein the floor is provided with a drain hole.

9. A range hood according to claim 1, wherein the housing is provided with an access door.

10. A smoke purification system, characterized in that it comprises a range hood according to any one of claims 1-9.