Smoke collecting hood and lampblack purification device

Abstract

The utility model discloses an exhaust fume collecting hood and an oil fume purifying device, a fume collecting chamber is arranged inside the exhaust fume collecting hood, an air suction pore plate and an upper fume inlet pore plate are arranged on the windward side of the exhaust fume collecting hood, the upper fume inlet pore plate is vertically arranged above the air suction pore plate, a fume gathering hood shell is arranged on the outer side of the upper fume inlet pore plate, a fume gathering positive pressure chamber is arranged in the fume gathering hood shell, and the fume gathering positive pressure chamber is arranged in the fume gathering hood shell. A plurality of smoke gathering holes are formed in a smoke gathering pore plate of the smoke gathering cover shell, a smoke gathering connecting plate is located at the top of the smoke gathering pore plate and arranged between the smoke gathering pore plate and an upper smoke inlet pore plate, a smoke gathering buffer area is formed among the smoke gathering pore plate, the smoke gathering connecting plate and the upper smoke inlet pore plate, and the smoke gathering holes right face the smoke gathering buffer area; air can be continuously sprayed to the smoke gathering buffer area from the smoke gathering holes under the action of the blast power mechanism; the oil fume purification device comprises an oil fume purification assembly, a negative pressure power mechanism and the fume collecting hood of the structure. The oil fume purification device has the advantage of high oil fume purification effect.

Description

Technical Field

[0001] This utility model relates to the technical field of kitchen fume purification equipment, specifically to a fume purification device. Background Technology

[0002] A range hood is a device for purifying kitchen fumes. A range hood typically includes a fume hood, a fume purification component, and a negative pressure fan. As the name suggests, the fume hood is a cover used to collect or gather fumes. The fume purification component includes a fume purification housing, which contains an electrostatic field module for removing oil fume particles, and an air outlet on the housing. The fume hood structure includes: a fume hood housing, a fume collection cavity within the housing, an air inlet plate inclined on the windward side of the housing, the air inlet plate communicating with the fume collection cavity, and a fume inlet at the bottom of the fume purification housing connected to the top of the housing.

[0003] The above-mentioned fume hood has the following defects: if the oil fumes are too strong, some oil fumes will inevitably escape upwards through the air inlet plate and out of the fume hood, which will result in an unsatisfactory oil fume purification effect.

[0004] During cooking, exhaust or purification equipment is used, but 10-20% of the fumes still escape. The VOCs generated during cooking enter the indoor environment along with the escaped fumes and remain there for a long time, causing indoor environmental pollution. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a fume hood and an oil fume purification device, which have a simple structure and can improve the oil fume purification effect.

[0006] To solve the above problems, the technical solution adopted by this utility model is: a smoke collection hood, including a smoke collection hood shell, with a negative pressure smoke collection chamber inside the smoke collection hood shell. An air intake plate is inclinedly arranged on the windward side of the smoke collection hood shell, through which ambient air enters the smoke collection chamber. An upper smoke inlet plate is also arranged on the windward side of the smoke collection hood shell, with several upper smoke inlet holes communicating with the smoke collection chamber. The upper smoke inlet plate is vertically arranged above the air intake plate. A smoke gathering hood shell is arranged outside the upper smoke inlet plate, with a smoke gathering positive pressure chamber inside the smoke gathering hood shell. The smoke gathering hood shell includes a smoke gathering outer cover plate and a smoke gathering... The system includes a bottom hood, a smoke collection hole plate, and a smoke collection connecting plate. The bottom hood is located at the bottom of the outer smoke collection hood. The smoke collection hole plate is located at the top inside the bottom hood and has several smoke collection holes. The connecting plate is located at the top of the smoke collection hole plate and between the smoke collection hole plate and the upper smoke inlet plate. The smoke collection hole plate, the connecting plate, and the upper smoke inlet plate form a smoke collection buffer zone. The smoke collection holes face the smoke collection buffer zone. The smoke collection hood is equipped with a blower mechanism that continuously blows ambient air into the smoke collection positive pressure chamber. Under the action of the blower mechanism, air is continuously ejected from the smoke collection holes to the smoke collection buffer zone.

[0007] Furthermore, in the aforementioned smoke hood, the blower power mechanism is a blower.

[0008] Furthermore, in the aforementioned smoke hood, the upper smoke inlet includes a plurality of first upper smoke inlets and a plurality of second upper smoke inlets. The first upper smoke inlets are distributed at the middle position of the lower end of the upper smoke inlet plate, and the second upper smoke inlets are arranged on both sides of the first upper smoke inlets. The second upper smoke inlets on each side are located at the upper end of the upper smoke inlet plate.

[0009] Furthermore, in the aforementioned smoke hood, the suction perforation plate is a cyclone perforation plate, and several cyclone perforation plates are inclinedly arranged on the windward side of the smoke hood shell. All cyclone perforation plates are arranged horizontally at intervals, and each cyclone plate adopts a detachable installation structure.

[0010] An oil fume purification device includes an oil fume purification component and a negative pressure power mechanism. Its features include: a smoke collection hood; the oil fume purification component is disposed on top of the smoke collection hood; the oil fume purification component includes: an oil fume purification chamber; an oil fume purification mechanism is disposed within the oil fume purification chamber; a smoke inlet buffer chamber is disposed at one end of the oil fume purification mechanism within the oil fume purification chamber; a smoke inlet for the oil fume purification chamber is opened at the bottom of the smoke inlet buffer chamber; the smoke inlet for the oil fume purification chamber communicates with the smoke collection chamber within the smoke collection hood; and a smoke exhaust mechanism is disposed on the oil fume purification chamber.

[0011] Furthermore, in the aforementioned fume purification device, the fume purification mechanism includes a defoaming mesh, an electrostatic field purification module, a high-efficiency air filter, and an activated carbon adsorption box arranged sequentially in the purification order.

[0012] Furthermore, in the aforementioned fume purification device, at least two electrostatic field purification modules are arranged in the order of purification.

[0013] Furthermore, in the aforementioned fume purification device, a single-drive high-voltage electrostatic field purification module and a single-drive low-voltage electrostatic field purification module are arranged sequentially in the order of purification.

[0014] Furthermore, in the aforementioned fume purification device, a cooler is also installed inside the fume purification box at one end of the activated carbon adsorption box.

[0015] Furthermore, in the aforementioned fume purification device, the exhaust mechanism includes an exhaust box located at the top of the fume purification box, an exhaust chamber formed within the exhaust box, and an exhaust port connected to the interior of the exhaust box; a smoke outlet buffer chamber is provided within the fume purification box at one end of the cooler, the top of which is connected to the exhaust box; the negative pressure power mechanism is a negative pressure fan, which creates a negative pressure in the smoke collection chamber under the action of the negative pressure fan, and the flue gas sequentially enters the fume purification box through the smoke collection chamber and the smoke inlet buffer chamber, and then exits through the smoke outlet buffer chamber and the exhaust box.

[0016] The advantages of this utility model are: 1. The structure of the fume hood and the oil fume purification device is simple. The fume hood shell plays a role in collecting the escaping oil fumes. The positive pressure air in the fume collecting positive pressure chamber is continuously blown out through the fume collecting holes, which further forms an inward force on the fumes, making the fume collection more effective. 2. The oil fume purification device sequentially passes through a defoaming wire mesh filter to remove water and oil fume particles, an electrostatic field purification module to remove oil fume particles, a high-efficiency air filter to remove dust particles from the air, an activated carbon adsorption box to remove odors, and a cooler to cool the fumes. This process can treat the fumes to meet indoor usage requirements, so they can be directly discharged into the room for indoor air circulation, avoiding the discharge of air containing oil fumes and environmental pollution. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external structure of the smoke collection hood and the oil fume purification device described in this utility model.

[0018] Figure 2 It is relative Figure 1 A schematic diagram of the external structure of a fume hood and an oil fume purification device from another perspective.

[0019] Figure 3This is a schematic diagram of the structure of the smoke collection chamber and the smoke collection hood shell in the smoke collection hood and oil fume purification device described in this utility model.

[0020] Figure 4 This is a schematic diagram of the internal structure of the fume purification component in the fume purification device described in this utility model. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments.

[0022] like Figure 1 , Figure 2 , Figure 3 As shown, a smoke hood includes a smoke hood housing 1, inside which a smoke collection chamber 11 is provided. An air intake plate 12 is inclinedly arranged on the windward side of the smoke hood housing 1, through which ambient air enters the smoke collection chamber 11. An upper smoke inlet plate 13 is also provided on the windward side of the smoke hood housing 1, and the upper smoke inlet plate 13 has several upper smoke inlet holes communicating with the smoke collection chamber 11.

[0023] In this embodiment, the suction perforated plate 12 is a cyclone perforated plate. Several cyclone perforated plates 12 are inclinedly arranged on the windward side of the smoke collection hood housing 1. All cyclone perforated plates 12 are arranged laterally at intervals. For ease of cleaning, each cyclone perforated plate 12 adopts a detachable installation structure. The function of using cyclone perforated plates is that when particulate matter in the air passes through the cyclone perforated plates, it will collide and be trapped under the action of cyclone effect and inertia, thereby playing a preliminary purification role.

[0024] In this embodiment, the upper smoke inlet includes a plurality of first upper smoke inlet holes 131 and a plurality of second upper smoke inlet holes 132. The first upper smoke inlet holes 131 are distributed at the middle position of the lower end of the upper smoke inlet plate 13, and the second upper smoke inlet holes 132 are arranged on both sides of the first upper smoke inlet holes 132, with each side of the second upper smoke inlet hole 132 located at the upper end of the upper smoke inlet plate 13. The purpose of the upper smoke inlet adopting the above-described arrangement is to better absorb the upward overflowing smoke.

[0025] like Figure 3As shown, the upper smoke inlet plate 13 is erected above the air intake plate 12. A smoke collection hood 2 is provided on the outer side of the upper smoke inlet plate 13. A smoke collection positive pressure chamber 20 is provided inside the smoke collection hood 2. The smoke collection hood 2 includes a smoke collection outer cover plate 21, a smoke collection bottom cover plate 22, a smoke collection hole plate 23, and a smoke collection connecting plate 24. The smoke collection bottom cover plate 22 is located at the bottom of the smoke collection outer cover plate 21. The smoke collection hole plate 23 is located at the top of the inner side of the smoke collection bottom cover plate 22. A plurality of smoke collection holes 231 are provided on the smoke collection hole plate 23. The smoke collection connecting plate 24 is located at the top of the smoke collection hole plate 23 and is provided between the smoke collection hole plate 23 and the upper smoke inlet plate 13. A smoke collection buffer zone 30 is formed between the smoke collection hole plate 23, the smoke collection connecting plate 24, and the upper smoke inlet plate 13. The smoke collection holes 231 face the smoke collection buffer zone 30. The smoke collection hood 2 is equipped with a blower mechanism that continuously pumps ambient air into the smoke collection positive pressure chamber 20. Under the action of the blower mechanism, air is continuously ejected from the smoke collection holes 231 to the smoke collection buffer zone 30. In this embodiment, the blower mechanism is a blower 31. The smoke collection hood 2 serves to collect the escaping fumes. The positive pressure air in its smoke collection positive pressure chamber 20 is continuously blown out through the smoke collection holes 231, which further exerts an inward force on the fumes, thus more effectively collecting them.

[0026] The structure of a range hood using the above-mentioned smoke collection hood is described below.

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, an oil fume purification device includes an oil fume purification component 5 and a negative pressure power mechanism, as well as the aforementioned fume collection hood. The oil fume purification component 5 is disposed on the top of the fume collection hood. The oil fume purification component 5 includes: an oil fume purification box 51, and an oil fume purification mechanism is disposed inside the oil fume purification box 51. A smoke inlet buffer chamber 510 is disposed inside the oil fume purification box 510 at one end of the oil fume purification mechanism. An oil fume purification box inlet 511 is opened at the bottom of the smoke inlet buffer chamber 510. The oil fume purification box inlet 511 is connected to the smoke collection chamber 11 inside the fume collection hood shell 1. A smoke exhaust mechanism is disposed on the oil fume purification box 51.

[0028] like Figure 4As shown, in this embodiment, the fume purification mechanism includes, in sequence, a demister mesh 501, an electrostatic field purification module, a high-efficiency air filter 503, and an activated carbon adsorption box 504. A cooler 505 is also installed inside the fume purification chamber 51 at one end of the activated carbon adsorption box 504. The electrostatic field purification module has at least two stages in the order of fume purification. This embodiment uses a two-stage electrostatic field purification module as an example, including a single-drive high-voltage electrostatic field purification module 5021 and a single-drive low-voltage electrostatic field purification module 5022, arranged in sequence. The two-stage electrostatic field purification significantly improves the purification effect of fume particles.

[0029] The smoke exhaust mechanism includes a smoke exhaust box 6 installed on top of the oil fume purification box 51, a smoke exhaust chamber 60 is formed inside the smoke exhaust box 6, and a smoke exhaust port 61 is opened on the smoke exhaust box 6, which is connected to the room.

[0030] In this embodiment, a smoke outlet buffer chamber 512 is provided in the oil fume purification box 51 located at one end of the heat exchange device 505. The top of the smoke outlet buffer chamber 512 is connected to the smoke exhaust box 6. The negative pressure power mechanism is a negative pressure fan 7. Under the action of the negative pressure fan 7, a negative pressure is formed in the smoke collection chamber 11. The flue gas enters the oil fume purification box through the smoke collection chamber 11 and the smoke inlet buffer chamber 510 in sequence, and then is discharged through the smoke outlet buffer chamber 512 and the smoke exhaust box 6.

[0031] During operation, the negative pressure fan 7 creates a negative pressure in the smoke collection chamber 11 and the fume purification box 51, causing the air carrying oil fumes to continuously enter the smoke collection chamber 11 through the suction plate 12. If the oil fumes are too large and rise upwards, they will be blocked by the smoke collection hood 2 at the smoke collection buffer 30. The oil fumes at the smoke collection buffer 30 will then be drawn into the smoke collection chamber 11 by the first upper smoke inlet 131 and the second upper smoke inlet 132. The oil fumes in the smoke collection chamber 11 enter the smoke inlet buffer chamber 510 through the smoke inlet 511 of the fume purification box, and then sequentially pass through the demister mesh 501 to remove water and oil fume particles, the single-drive high-voltage electrostatic field purification module 5021 and the single-drive low-voltage electrostatic field purification module 5022 to remove oil fume particles, the high-efficiency air filter 503 to remove dust particles from the air, the activated carbon adsorption box 504 to remove odors, and the heat exchange device 505 to cool them before entering the exhaust box 6. Having described the purification process, which removes oil fumes, dust particles, and odors, the air quality meets indoor usage standards. Therefore, the air inside the exhaust box 6 can be directly discharged into the room through the exhaust port 61, thus achieving indoor air purification and circulation.

[0032] As can be seen from the above, the fume hood and oil fume purification device described in this application have the following advantages: 1. The fume hood and a range hood have a simple structure. The fume hood shell plays a role in collecting the escaping oil fumes. The positive pressure air in the fume collecting positive pressure chamber is continuously blown out through the fume collecting holes, which can further form an inward force on the fumes, making the fume collection more effective and thus improving the oil fume purification efficiency. 2. The oil fume purification device sequentially passes through a demister mesh filter to remove water and oil fume particles, an electrostatic field purification module to remove oil fume particles, a high-efficiency air filter to remove dust particles from the air, an activated carbon adsorption box to remove odors, and a heat exchange device to cool the fumes. This process can treat the fumes to meet indoor usage requirements, so they can be directly discharged into the room for indoor air circulation, avoiding the discharge of air containing oil fumes and environmental pollution.

Claims

1. A smoke hood, comprising a smoke hood housing, wherein a negative pressure smoke collection chamber is provided inside the smoke hood housing, and an air intake plate is inclinedly provided on the windward side of the smoke hood housing, through which ambient air enters the smoke collection chamber, characterized in that: The windward side of the smoke collection hood shell is also provided with an upper smoke inlet plate. The upper smoke inlet plate has several upper smoke inlet holes communicating with the smoke collection chamber. The upper smoke inlet plate is vertically positioned above the suction port plate. A smoke gathering hood shell is located outside the upper smoke inlet plate. A smoke gathering positive pressure chamber is located inside the smoke gathering hood shell. The smoke gathering hood shell includes an outer smoke gathering cover plate, a bottom smoke gathering cover plate, a smoke gathering hole plate, and a smoke gathering connecting plate. The bottom smoke gathering cover plate is located at the bottom of the outer smoke gathering cover plate, and the smoke gathering hole plate is located at the bottom of the outer smoke gathering cover plate. The top of the inner side of the bottom smoke hood plate has several smoke collection holes on the smoke collection hole plate. The smoke collection connecting plate is located on top of the smoke collection hole plate and is set between the smoke collection hole plate and the upper smoke inlet hole plate. The smoke collection hole plate, the smoke collection connecting plate and the upper smoke inlet hole plate form a smoke collection buffer zone. The smoke collection holes face the smoke collection buffer zone. The smoke collection hood shell is equipped with a blower power mechanism that can continuously blow ambient air into the smoke collection positive pressure chamber. Under the action of the blower power mechanism, air can be continuously ejected from the smoke collection holes to the smoke collection buffer zone.

2. The smoke collection hood according to claim 1, characterized in that: The aforementioned blower power mechanism is a blower.

3. The smoke collection hood according to claim 1, characterized in that: The upper smoke inlet includes several first upper smoke inlets and several second upper smoke inlets. The first upper smoke inlets are located at the middle of the lower end of the upper smoke inlet plate. The second upper smoke inlets are arranged on both sides of the first upper smoke inlets, and the second upper smoke inlets on each side are located at the upper end of the upper smoke inlet plate.

4. The smoke collection hood according to claim 1, characterized in that: The suction plate adopts a cyclone plate. Several cyclone plates are inclinedly arranged on the windward side of the smoke collection hood shell. All cyclone plates are arranged horizontally at intervals, and each cyclone plate adopts a detachable installation structure.

5. An oil fume purification device, comprising an oil fume purification component and a negative pressure power mechanism, characterized in that: It also includes the fume hood as described in any one of claims 1 to 4, wherein the fume purification component is disposed on the top of the fume hood, and the fume purification component includes: a fume purification box, a fume purification mechanism disposed inside the fume purification box, a smoke inlet buffer chamber disposed at one end of the fume purification mechanism, a fume inlet of the fume purification box being provided at the bottom of the smoke inlet buffer chamber, the fume inlet of the fume purification box communicating with the smoke collection chamber inside the fume hood, and a smoke exhaust mechanism disposed on the fume purification box.

6. The oil fume purification device according to claim 5, characterized in that: The fume purification system includes, in sequence, a defoaming mesh, an electrostatic field purification module, a high-efficiency air filter, and an activated carbon adsorption box.

7. The oil fume purification device according to claim 6, characterized in that: At least two electrostatic field purification modules should be set up in the order of purification.

8. The oil fume purification device according to claim 7, characterized in that: The single-drive high-voltage electrostatic field purification module and the single-drive low-voltage electrostatic field purification module are set up in sequence according to the purification order.

9. The oil fume purification device according to claim 6, characterized in that: A cooler is also installed inside the fume purification box at one end of the activated carbon adsorption box.

10. The oil fume purification device according to claim 8, characterized in that: The smoke exhaust mechanism includes a smoke exhaust box located at the top of the fume purification box, forming a smoke exhaust chamber inside the smoke exhaust box. A smoke exhaust port is opened on the smoke exhaust box and is connected to the interior. A smoke outlet buffer chamber is set inside the fume purification box located at one end of the cooler. The top of the smoke outlet buffer chamber is connected to the smoke exhaust box. The negative pressure power mechanism is a negative pressure fan. Under the action of the negative pressure fan, a negative pressure is formed in the smoke collection chamber. The flue gas enters the fume purification box in sequence through the smoke collection chamber and the smoke inlet buffer chamber, and then is discharged through the smoke outlet buffer chamber and the smoke exhaust box.

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