A vortex purification exhaust structure for an integrated smoke hood unit

Abstract

This utility model provides a vortex purification and exhaust structure for an integrated fume hood, relating to the technical field of oil fume purification equipment. It includes a fume hood and a filter box, the filter box having an air inlet and an air outlet, and an electric field and a fan installed inside. When the fan starts, it drives airflow through the fume hood, into the filter box from the air inlet, through the electric field for purification, and out from the air outlet. The horizontal projection of the filter box covers the air inlet, dividing the airflow into two parts: the first part directly enters the filter box, swirls, and then enters the electric field; the second part directly enters the electric field. The two parts of airflow converge within the electric field, generating localized air turbulence to prolong the residence time of the airflow in the electric field, promoting full contact between the oil fume particles contained in the airflow and the electric field, thereby improving the ionization purification efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of oil fume purification equipment, and in particular to a vortex purification exhaust structure for an integrated fume hood. Background Technology

[0002] As a new type of kitchen equipment, the integrated range hood is increasingly widely used in the catering industry due to its significant advantages. It combines the functions of a range hood and a stovetop hood, saving kitchen space and creating a more streamlined layout. It efficiently captures cooking fumes, and its powerful suction quickly removes them, keeping the kitchen air fresh and reducing the spread of smoke.

[0003] In integrated fume hood systems, the plate-type electrostatic field is a key component. It applies high voltage to ionize the incoming oily fumes, charging the oil mist, which in turn causes the charged oil fume particles to be adsorbed onto the plate under the influence of the electric field, thus achieving initial fume purification.

[0004] However, the traditional integrated range hood's plate-type electrostatic field layout has drawbacks, resulting in unsatisfactory purification effects during exhaust. For example, the plate-type electrostatic field is placed inside the exhaust duct, which limits the residence time of cooking fumes as they pass through the field area. Due to this short residence time, the fumes cannot fully interact with the electric field, significantly reducing ionization. Many tiny oil fume particles cannot be effectively ionized, thus affecting the overall fume purification efficiency. Furthermore, this traditional layout results in a large overall footprint for the integrated range hood. In kitchens with limited space, this prevents optimal space utilization, increasing the difficulty and cost of kitchen layout. Therefore, the purification and exhaust structure of traditional integrated range hoods still has room for improvement. Utility Model Content

[0005] This utility model overcomes the shortcomings of the prior art and provides a vortex purification and exhaust structure for an integrated fume hood, which can overcome the technical defects mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] A vortex purification and exhaust structure for an integrated fume hood includes a fume hood and a filter box located above the fume hood, with the fume hood and the filter box connected in communication. The filter box has an air inlet and an air outlet, and an electric field and a fan are arranged inside it. When the fan is started, it drives the airflow through the fume hood, from the air inlet into the filter box, through the electric field for purification, and out of the air outlet.

[0008] The horizontal projection of the electric field overlaps with the air inlet, causing the airflow entering the air inlet to be divided into two parts: the first part of the airflow directly enters the filter box, swirls, and then enters the electric field; the second part of the airflow directly enters the electric field. The two parts of the airflow converge in the electric field and generate local air turbulence, thereby prolonging the residence time of the airflow in the electric field and promoting full contact between the oil fume particles contained in the airflow and the electric field, thus improving the ionization purification efficiency.

[0009] Furthermore, the filter box has a purification chamber and a deodorization chamber inside; the air inlet is connected to the purification chamber, and the air outlet is connected to the deodorization chamber; a deodorization device is provided in the deodorization chamber; the electric field and the fan are located in the purification chamber; the purification chamber has an airflow swirling chamber formed by the electric field and the inner wall of the purification chamber, and the airflow swirling chamber is connected to the air inlet.

[0010] Furthermore, the air inlet is located on the side of the purification chamber away from the deodorization chamber, and the electric field is arranged adjacent to the air inlet to increase the configuration space of the deodorization chamber.

[0011] Furthermore, the filter box is provided with at least one air outlet, and each air outlet is distributed in a different position of the filter box; a sealing plate is detachably installed at the air outlet.

[0012] Furthermore, the deodorizing device includes a mounting plate that is detachably connected to the air outlet.

[0013] Furthermore, the air outlet is provided with a plurality of first connection holes around its perimeter, and the mounting plate and the sealing plate are provided with second connection holes, the first connection holes corresponding to the second connection holes for fastening the connection.

[0014] Furthermore, the filter box is equipped with an electrical box, which is constructed as an openable door structure, and its vertical projection is located within the outline of the filter box.

[0015] The electrical box is positioned in a spatial manner corresponding to the electric field, and the filter box is located on the back of the electrical box with an opening for easy installation and maintenance of the electric field.

[0016] Furthermore, the size of the opening is larger than the external dimensions of the electric field to provide operating space for the electric field to be installed.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This structure, through its unique airflow separation and swirling design, extends the residence time of airflow in the electric field, improving ionization purification efficiency and more effectively removing oil fume particles. This layout design also increases the configuration space for the electric field and deodorization chamber. Multiple selectable air outlets are provided, facilitating on-site installation and connection with ductwork of different directions. This allows for flexible on-site ductwork layout, eliminating the need to pre-produce and stock various exhaust structures for different outlets, offering high flexibility. Furthermore, deodorization inserts can be added at will, achieving deodorization without altering the original equipment manufacturing process. Temporary changes during on-site construction do not require machine replacement, significantly saving on inventory and production costs. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and, together with the embodiments of the present invention, are used to explain the present invention. They do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the internal structure of the vortex purification exhaust structure of the integrated fume hood unit;

[0021] Figure 2 This is a 3D diagram of the vortex purification and exhaust structure of the integrated range hood unit;

[0022] Figure 3 This is a front view of the vortex purification and exhaust structure of the integrated fume hood unit;

[0023] Figure 4 This is an exploded view of the vortex purification and exhaust structure of the integrated fume hood unit;

[0024] Figure 5 This is a bottom view of the filter box.

[0025] In the diagram: 1. Fume hood; 2. Filter box; 201. Purification chamber; 2011. Airflow swirl chamber; 202. Deodorization chamber; 203. Opening; 3. Air inlet; 4. Air outlet; 5. Electric field; 6. Fan; 7. Deodorization device; 701. Mounting plate; 8. Sealing plate; 9. Electrical box. Detailed Implementation

[0026] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0027] like Figures 1 to 5As shown, this utility model provides an integrated fume hood 1 vortex purification exhaust structure, mainly including a fume hood 1 and a filter box 2 located above the fume hood 1, with the fume hood 1 and the filter box 2 connected. The filter box 2 has an air inlet 3 and an air outlet 4, and an electric field 5 and a fan 6 are arranged inside it. When the fan 6 is started, it drives the airflow through the fume hood 1 from the air inlet 3 into the filter box 2, flows through the electric field 5 for purification, and is discharged from the air outlet 4.

[0028] Specifically, in combination Figure 1 , Figure 4 as well as Figure 5 As you can see, the horizontal projection of the electric field 5 overlaps with the air inlet 3, causing the airflow entering the air inlet 3 to be divided into two parts. The first part of the airflow directly enters the filter box 2, swirls, and then enters the electric field 5, while the second part of the airflow directly enters the electric field 5. These two parts of the airflow converge within the electric field 5, generating local air turbulence, thereby prolonging the residence time of the airflow in the electric field 5, promoting full contact between the oil fume particles contained in the airflow and the electric field 5, and improving the ionization purification efficiency.

[0029] The filter box 2 contains a purification chamber 201 and a deodorization chamber 202. The air inlet 3 connects to the purification chamber 201, and the air outlet 4 connects to the deodorization chamber 202. A deodorization device 7 is installed inside the deodorization chamber 202. Most current integrated fume purification machines do not include deodorization. This technical solution integrates deodorization by adding the deodorization device 7, allowing for flexible assembly without altering the original equipment manufacturing process.

[0030] In this embodiment, the deodorization device 7 includes a UV photolysis device for further purifying the discharged gas and removing odors; as other embodiments, activated carbon or fragrance can also be used for deodorization, which is not limited here. The electric field 5 and the fan 6 are located inside the purification chamber 201, wherein the purification chamber 201 has an airflow vortex chamber 2011 formed by the electric field 5 and the inner wall of the purification chamber 201, and the airflow vortex chamber 2011 is connected to the air inlet 3. The first part of the airflow mentioned above directly enters the airflow vortex chamber 2011, vortexes, and then enters the electric field 5, where it converges with the second part of the airflow that directly enters the electric field 5.

[0031] Combination Figure 1 See, the air inlet 3 is located on the side of the purification chamber 201 away from the deodorization chamber 202, and the electric field 5 is set near the air inlet 3. This not only allows more electric fields 5 to be installed in the limited space, but also increases the configuration space of the deodorization chamber 202, which is beneficial to the installation and layout of components such as the deodorization device 7.

[0032] The filter box 2 has at least one air outlet 4, and the air outlets 4 are distributed in different positions of the filter box 2. The air outlet 4 is detachably installed with a sealing plate 8, which makes it easy to close or adjust the air outlet 4. During on-site construction, air ducts of different directions can be matched to the air outlets 4 in different positions for installation and connection, which facilitates flexible on-site ducting. It is not necessary to make exhaust structures of various air outlets 4 in advance and keep them in stock during production. It is highly flexible, and if there are temporary changes during on-site construction, there is no need to replace the machine, which greatly saves inventory and production costs.

[0033] The deodorizing device 7 includes a mounting plate 701, which is detachably connected to the air outlet 4. Several first connecting holes are provided around the air outlet 4, and second connecting holes are provided on both the mounting plate 701 and the sealing plate 8. The first connecting holes correspond to the second connecting holes for secure connection, facilitating installation and disassembly. This design allows for flexible installation of the deodorizing device 7, which can be installed on air outlets 4 that do not require ductwork connection. In other words, this layout with multiple air outlets 4 allows for flexible installation of both the ductwork and the deodorizing device 7; unused air outlets 4 can be sealed with the sealing plate 8, making it convenient to use.

[0034] As explained above, by setting multiple air outlets 4, it is possible to increase the space for the deodorizing device without sacrificing the original electric field placement position. This allows the integrated machine to increase the deodorizing function without reducing the electric field, and the purification efficiency will not decrease. Increasing the deodorizing function with better purification effect will not reduce the deodorizing effect, because if the electric field is reduced, the purification efficiency will decrease, and the untreated oil fumes will stick to the surface of the UV lamp tube or activated carbon of the deodorizing device 7, and the deodorizing device will quickly fail, thus creating a vicious cycle.

[0035] The filter box 2 is equipped with an electrical box 9. The electrical box 9 has an openable door structure, and its vertical projection is within the outline of the filter box 2, making it compact and easy to install. The electrical box 9 is positioned corresponding to the electric field 5, and an opening 203 is provided on the back of the filter box 2 at the electrical box 9 to facilitate the installation and maintenance of the electric field 5. The size of the opening 203 is larger than the external dimensions of the electric field 5, providing operating space for the electric field 5 to be installed, facilitating installation, inspection, replacement, and other maintenance operations.

[0036] In this embodiment, electric field 5 adopts a three-field design. The core of this design lies in the flexible combination of high-voltage (ionization) and low-voltage (dust collection) zones to adapt to different oil fume concentrations, achieving efficient purification and energy saving. Specifically, each electric field unit can operate in either high-voltage or low-voltage mode, allowing for free combination of electric fields. For example:

[0037] (1) When the oil fume concentration is not high, it can be set to three pure high-pressure modes. In this mode, all three high-pressure zones are ionization zones to ionize the oil fume and also have a dust collection effect.

[0038] (2) When the oil fume concentration is moderate, it is set to a combination of two high-pressure zones and one low-pressure zone. The two high-pressure zones are ionization zones to ionize the oil fume, while the low-pressure zone is a dust collection zone to collect the ionized oil fume after high-pressure ionization.

[0039] (2) When the concentration of oil fume is high, a combination mode of one high pressure and two low pressure is set. One high pressure zone is responsible for ionizing the oil fume, and the two low pressure zones are used as dust collection zones to collect dust from the ionized oil fume in order to meet the treatment needs of high concentration oil fume.

[0040] The high-voltage zone is the ionization zone. During the ionization process of the cooking fumes, it not only alters the odor molecules in the fumes but also has a dust-collecting effect. The low-voltage zone, on the other hand, is the dust-collecting zone. It does not have an ionization effect itself and can only effectively collect dust from the ionized cooking fumes under the premise of high-voltage ionization. This design, through the combination of different electric field modes, can be flexibly adjusted according to different concentrations of cooking fumes to achieve better odor removal and dust collection results.

[0041] The working principle of this invention is as follows: When the fan 6 starts, the oil fumes enter the air inlet 3 of the filter box 2 from the fume hood 1. Because the horizontal projection of the electric field 5 overlaps with the air inlet 3, the airflow entering the air inlet 3 is divided into two parts. The first part of the airflow directly enters the filter box 2 and swirls in the airflow vortex chamber 2011 before entering the electric field 5. The second part of the airflow directly enters the electric field 5. The two parts of the airflow converge in the electric field 5 and generate local air turbulence, which prolongs the residence time of the airflow in the electric field 5, allowing the oil fume particles contained in the airflow to fully contact the electric field 5. Under the action of the electric field 5, the oil fume particles are ionized and purified. The purified airflow enters the deodorization chamber 202, where it is further deodorized by deodorization devices such as the UV photolysis device 7, and finally discharged from the air outlet 4.

[0042] This structure, through its unique airflow separation and swirling design, extends the residence time of airflow in the electric field 5, improves ionization purification efficiency, and can more effectively remove oil fume particles. This layout design also increases the configuration space for the electric field 5 and the deodorization chamber 202. It is equipped with multiple selectable air outlets 4, which facilitates the matching and connection of air ducts in different directions during on-site construction. This allows for flexible on-site ductwork layout and eliminates the need to pre-produce and stock various exhaust structures for air outlets 4. This high flexibility means that if there are temporary changes during on-site construction, there is no need to replace the machine, which greatly saves on inventory and production costs.

[0043] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fume hood integrated vortex flow purification exhaust structure, characterized in that, The system includes a fume hood and a filter box located above the fume hood, with the fume hood and the filter box connected. The filter box has an air inlet and an air outlet, and an electric field and a fan are installed inside. When the fan is started, it drives the airflow through the fume hood, from the air inlet into the filter box, through the electric field for purification, and out of the air outlet. The horizontal projection of the electric field overlaps with the air inlet, causing the airflow entering the air inlet to be divided into two parts: the first part of the airflow directly enters the filter box, swirls, and then enters the electric field; the second part of the airflow directly enters the electric field. The two parts of the airflow converge in the electric field and generate local air turbulence, thereby prolonging the residence time of the airflow in the electric field and promoting full contact between the oil fume particles contained in the airflow and the electric field, thus improving the ionization purification efficiency.

2. The chimney integrated machine vortex flow purification exhaust structure according to claim 1, characterized in that, The filter box has a purification chamber and a deodorization chamber inside; the air inlet is connected to the purification chamber, and the air outlet is connected to the deodorization chamber; a deodorization device is provided in the deodorization chamber; the electric field and the fan are located in the purification chamber; the purification chamber has an airflow swirling chamber formed by the electric field and the inner wall of the purification chamber, and the airflow swirling chamber is connected to the air inlet.

3. The chimney integrated machine vortex flow purification exhaust structure according to claim 2, characterized in that, The air inlet is located on the side of the purification chamber away from the deodorization chamber, and the electric field is arranged near the air inlet to increase the configuration space of the deodorization chamber.

4. The chimney integrated machine vortex flow purification exhaust structure according to claim 2, characterized in that, The filter box has at least one air outlet, and each air outlet is distributed in a different position on the filter box; a sealing plate is detachably installed at each air outlet.

5. The chimney integrated machine vortex flow purification exhaust structure according to claim 4, characterized in that, The deodorizing device includes a mounting plate that is detachably connected to the air outlet.

6. The chimney-integrated machine vortex flow purification exhaust structure according to claim 5, characterized in that, The air outlet is provided with a number of first connection holes around its perimeter, and the mounting plate and the sealing plate are provided with second connection holes. The first connection holes and the second connection holes correspond to each other and are used for fastening the connection.

7. The chimney integrated machine vortex flow purification exhaust structure according to claim 1, characterized in that, The filter box is equipped with an electrical box, which is constructed as an openable door structure, and its vertical projection is located within the outline of the filter box. The electrical box is positioned in a spatial manner corresponding to the electric field, and the filter box is located on the back of the electrical box with an opening to facilitate the installation and maintenance of the electric field.

8. The chimney integrated machine vortex flow purification exhaust structure according to claim 7, characterized in that, The opening is larger than the external dimensions of the electric field to provide operating space for the installation of the electric field.

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