Desktop oil smoke suction device

Abstract

The utility model discloses a table top oil smoke suction device which is characterized by at least sequentially comprising an air inlet, an air outlet, an air outlet, an air outlet and an air outlet according to an air flow path, the condensation assembly comprises a heat exchange device and a dirt collection box which are located on the upper portion and the lower portion of the condensation assembly respectively, the heat exchange device is in fluid communication with the dirt collection box, and the dirt collection box receives liquid formed by condensation in the heat exchange device; the filtering assembly comprises at least two different filtering devices, the filtering devices are vertically arranged in the table top oil smoke suction device at intervals, the filtering assembly further comprises a guiding device, and the guiding device is arranged below the filtering devices and used for guiding pollutants accumulated by the filtering devices to the dirt collecting box; and the air outlet is used for discharging the purified air. The filtering device of the table top oil smoke suction device is not easy to saturate, strong in filtering effect, large in condensation contact surface and good in condensation effect.

Description

Technical Field

[0001] The utility model relates to the technical field of range hoods, and particularly relates to a desktop oil fume suction device. Background Art

[0002] Nowadays, people have a fanatical love for hot pot and barbecue. However, along with the process of making and enjoying delicious food, harmful substances such as oil fume and particulate matter inevitably linger around us along with the delicious smell, affecting our physical health. When having hot pot at home, the harmful substances produced by the hot pot are not only oil fume, but also the peculiar smell generated will be absorbed by furniture and cannot be effectively removed, making the indoor smell linger for a long time. At the same time, a large amount of steam is generated during the cooking process, increasing the indoor humidity and making it easy to breed bacteria, which affects health. Although traditional range hoods can effectively remove kitchen oil fume, they are powerless to deal with the pollution on the dining table. For this reason, desktop oil fume suction devices have emerged. It can directly adsorb oil fume and peculiar smell on the dining table and keep the environment fresh.

[0003] The Chinese invention patent application "Portable Oil Fume Purification Device" with the application number 202111448035.8 (publication number CN 116147032 A) discloses a desktop oil fume suction device, which includes a body for placing on the side of a cooking appliance and provided with an air inlet and an air outlet. The body includes a condensation air guide plate, a fan and an oil-water box filled with coolant. The air inlet is located on the side of the body facing the cooking appliance, and a condensation filter screen is installed at the air inlet. The fan is located at the air outlet. The condensation air guide plate is arranged at intervals between the air inlet and the air outlet to form a U-shaped air duct passing through the oil-water box inside the body. The second half of the U-shaped air duct is located between the fan and the oil-water box to form a purification chamber, and a first filter element is arranged in the purification chamber.

[0004] This device uses a whole piece of metal as the condensation air guide plate. Through the U-shaped channel formed by internal intervals, the left side is the air inlet, the bottom is the oil-water box, and the right side is the filter screen. As shown in the specification drawings of this patent application document Figure 6 When the steam enters the left channel, the condensation air guide plate is used for air guiding and preliminary condensation. When it enters the lower side, the coolant is used to contact and condense the steam. When it enters the right side, the filter screen is used for filtration, or the coolant pumped up from the bottom by the water pump is used for spraying and condensing and liquefying.

[0005] However, the spraying mechanism on the right side will pump the mixture of oil and coolant to the water distribution pipe above the filter material through the water pump, resulting in the second filter element and the filter material in the purification chamber losing their filtering function and being extremely easy to be saturated, with poor filtering effect. In addition, the contact surface between the whole flat metal condensation air guide plate and the steam at the air inlet is small, and the condensation effect is poor. The condensation air guide plate mainly functions as air guiding; the lower part of the U-shaped channel uses coolant to cool the steam, and the contact surface is small. When the surface is covered with oil and water, the cooling effect is not ideal.

[0006] Therefore, further improvements are still needed for the existing desktop oil fume suction devices. Summary of the Invention

[0007] The first technical problem to be solved by the present utility model is to provide a desktop oil fume suction device with a filter device that is not easily saturated and has a strong filtering effect in view of the above technical status quo.

[0008] The second technical problem to be solved by the present utility model is to provide a desktop oil fume suction device with a large condensation contact surface and good condensation effect in view of the above technical status quo.

[0009] The technical solution adopted by the present utility model to solve the first technical problem is as follows: A desktop oil fume suction device, characterized in that, according to the air flow path, it at least sequentially includes

[0010] An air inlet for sucking air polluted by oil fume;

[0011] A condensation assembly, including a heat exchange device and a sewage collection box, which are respectively located at the upper and lower parts of the condensation assembly. The heat exchange device and the sewage collection box are in fluid communication, and the sewage collection box receives the liquid condensed in the heat exchange device;

[0012] A filter assembly, including at least two different filter devices, each filter device is erected inside the desktop oil fume suction device at intervals, and further includes a guiding device, which is arranged below the filter device to guide the pollutants accumulated by the filter device to the sewage collection box;

[0013] An air outlet for discharging the purified air.

[0014] Compared with the prior art, the desktop oil fume suction device of the present utility model uses a condensation assembly as a pretreatment link, effectively converting the oil and water substances in the gas into a liquid mixture that is easy to handle, and greatly reducing the oil and water content in the gas phase. Subsequently, the harmful components in the air such as oil fume, water vapor and particulate matter are strongly and effectively removed through the filter assembly. The filter device is vertically installed inside the desktop oil fume suction device. It can not only capture and adsorb the oil and water molecules in the air, but also allow the formed liquid to naturally drip into the guiding device under the action of gravity. The guiding device guides the liquid to the sewage collection box in the condensation assembly, so that these liquids are collected together with the liquid oil and water mixture generated during the condensation pretreatment process. This design ensures that the filter assembly is not easily saturated, thus maintaining a continuous and strong filtering effect. At the same time, all the pollutants purified from the air are orderly collected, further improving the efficiency and cleaning performance of the entire system.

[0015] Preferably, the filtering component includes three different filtering devices, namely an oil mist filter screen, a water mist filter screen, and a particulate matter and odor filter screen. The air after condensation pretreatment enters the oil mist filter screen for further filtering of the oil mist; the filtered gas then passes through the water mist filter screen for further absorption of water vapor; finally, the air is purified through the particulate matter and odor filter screen, and the clean air is finally sent back into the room through the air outlet.

[0016] Preferably, the sewage collection box includes an oil collection layer and a water collection layer located below the oil collection layer, and an oil-water separation filter cotton is placed in the oil collection layer. When the oil-water mixture drips into the sewage collection box, the oil is adsorbed by the oil-water separation filter cotton in the oil collection layer, and the separated water drops into the lower water collection layer, making the sewage collection box easier to clean and avoiding secondary pollution.

[0017] Preferably, the guiding device is a guiding groove with an upward opening. The liquid droplets captured by the filtering device drip into the guiding groove and are guided to the sewage collection box.

[0018] Preferably, the desktop oil fume suction device further includes an air inlet interface, which is opened near the air inlet. The air inlet interface is connected with a universal flexible suction arm, and the free end of the universal flexible suction arm is connected with a smoke collecting hood for increasing the suction area. The universal flexible suction arm and the smoke collecting hood extend the capture range of the air inlet for the oil fume-containing gas, and different universal flexible suction arms and smoke collecting hoods can be replaced according to different working environments.

[0019] Preferably, the desktop oil fume suction device further includes a fan for generating negative pressure, and the fan is arranged in the air outlet. The fan provides strong suction for the desktop oil fume suction device, and since the fan is arranged in the air outlet, the oil fume is not easily attached to the fan blades and no secondary pollution will be caused.

[0020] The solution to solve the second technical problem is that, as an improvement, the condensation component has a U-shaped air passage, the heat exchange device is clamped between the two U-shaped sides of the U-shaped air passage, and the U-shaped bottom of the U-shaped air passage is the gap between the bottom surface of the heat exchange device and the upper surface of the sewage collection box. Compared with the prior art that mainly relies on the contact condensation of the condensate at the U-shaped bottom with the air, the oil fume-containing air in this solution flows through both sides of the heat exchange device, contacts with the heat exchange device at the two U-shaped sides of the U-shaped air passage and condenses, increasing the contact surface and improving the condensation separation effect. Moreover, this U-shaped air passage is only used for condensation, making the condensation pretreatment effect of the device better.

[0021] Further, on the surface of the heat exchange device close to the air inlet, at least one vertical first heat exchange tooth extends towards the air inlet direction, and the first heat exchange tooth divides one U-shaped side of the U-shaped air passage into corresponding divided passages; on the surface of the heat exchange device facing away from the air inlet, at least one vertical second heat exchange tooth extends away from the air inlet direction, and the second heat exchange tooth divides the other U-shaped side of the U-shaped air passage into corresponding divided passages. The arrangement of the first heat exchange tooth and the second heat exchange tooth further increases the contact surface between the heat exchange device and the air.

[0022] Further, the tabletop oil fume suction device further includes a refrigeration component, which is in fluid communication with the heat exchange device to provide a cold source for the heat exchange device, thereby maintaining the condensation effect of the condensation component.

[0023] Preferably, the refrigeration component includes a water storage device, and a water level detector is provided in the water storage device, and the water level detector can give a reminder when the water level in the water storage device is lower than the set value. Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of an embodiment of the present invention (the first heat exchange tooth and the second heat exchange tooth are not drawn);

[0025] Figure 2 For Figure 1 The schematic structural diagram after removing the dirt collection box;

[0026] Figure 3 For Figure 1 The schematic structural diagram after removing the condensation component;

[0027] Figure 4 It is a schematic structural diagram of the heat exchange device of an embodiment of the present invention;

[0028] Figure 5 It is an internal sectional view of the heat exchange device of an embodiment of the present invention;

[0029] Figure 6 It is a side view of the U-shaped air passage of an embodiment of the present invention;

[0030] Figure 7 It is a front view of the U-shaped air passage of an embodiment of the present invention;

[0031] Figure 8 It is a schematic structural diagram of the universal flexible suction arm and the smoke collecting hood of an embodiment of the present invention. Detailed Embodiments

[0032] The present invention will be further described in detail below with reference to the embodiments of the drawings.

[0033] According to the air flow path, such asFigures 1 - 8 As shown, the tabletop oil fume suction device of this embodiment at least sequentially includes an air inlet 110, a condensation component 200, a filtration component 300, and an air outlet 120. The thick arrows in the figure indicate the air flow path.

[0034] As Figure 1 shown, the air inlet 110 is used to suck in the air polluted by oil fume. An air inlet interface 130 is opened near the upper part of the air inlet 110, and the air inlet interface 130 can be connected to a universal flexible suction arm 140. The free end of the universal flexible suction arm 140 can be connected to a smoke collecting hood 150 that increases the suction area, as Figure 8 shown. The universal flexible suction arm 140 and the smoke collecting hood 150 extend the trapping range of the air inlet 110 for the oil fume-carrying gas. At the same time, different universal flexible suction arms 140 and smoke collecting hoods 150 can be replaced to adapt to the tabletop oil fume suction device to work in different environments.

[0035] As Figure 1 and 2 shown, both the air inlet 110 and the air inlet interface 130 are opened on the right side surface of the housing 210 of the condensation component 200. The condensation component 200 further includes a heat exchange device 220 and a dirt collection box 230, which are respectively arranged at the upper and lower parts of the condensation component 200. The heat exchange device 220 performs condensation pretreatment on the air, effectively converting the oil and water substances in the gas into a liquid mixture that is easy to handle, greatly reducing the oil and water content in the gas phase. The heat exchange device 220 and the dirt collection box 230 are in fluid communication, and the dirt collection box 230 receives the liquid condensed in the heat exchange device 220. There is a U-shaped air passage 240 in the condensation component 200. As Figure 6 and Figure 7 shown, the heat exchange device 220 is clamped between the two U-shaped side edges 241 of the U-shaped air passage 240. The U-shaped bottom edge 242 of the U-shaped air passage 240 is the gap between the bottom surface of the heat exchange device 220 and the upper surface of the dirt collection box 230. The oil fume-carrying air flows through both sides of the heat exchange device 220, that is, it contacts the heat exchange device 220 at the two U-shaped side edges 241 of the U-shaped air passage 240 and condensation occurs, increasing the contact surface and improving the condensation separation effect. A pretreatment air outlet 211 is opened on the left side surface of the housing 210 of the condensation component 200. The inhaled air leaves the condensation component 200 through the pretreatment air outlet 211 and enters the filtration component 300.

[0036] As Figure 4 and Figure 5As shown, on the surface of the heat exchange device 220 close to the air inlet 110, a plurality of vertical first heat exchange teeth 221 extend towards the air inlet 110. The first heat exchange teeth 221 divide one U-shaped side 241 of the U-shaped air passage 240 into corresponding sub-passages; on the surface of the heat exchange device 220 facing away from the air inlet 101, a plurality of vertical second heat exchange teeth 222 extend away from the air inlet 110. The second heat exchange teeth 222 divide the other U-shaped side 241 of the U-shaped air passage 240 into corresponding sub-passages. The arrangement of the first heat exchange teeth 221 and the second heat exchange teeth 222 further increases the contact area between the heat exchange device 220 and the air.

[0037] An inlet 223, an outlet 224 and a filling port 225 are provided above the heat exchange device 220 for the circulation and replenishment of condensed water. When it is necessary to disassemble the heat exchange device 220 for cleaning, first open the silicone plug 160 above the tabletop oil fume suction device, unplug the water pipes connected to the inlet 223, the outlet 224 and the filling port 225 of the heat exchange device 220, and then disassemble the housing 210 of the condensation assembly 200 downward, as Figure 3 shown. After disassembly, the heat exchanger 220 therein can be directly taken out from above the housing 210 of the condensation assembly 200.

[0038] Please refer to Figure 1 , the dirt collection box 230 includes an oil collection layer 231 and a water collection layer 232 located below the oil collection layer 231. An oil-water separation filter cotton (not shown in the figure) is placed in the oil collection layer 231. When the oil-water mixture drips into the dirt collection box 230, after the oil is adsorbed by the oil-water separation filter cotton in the oil collection layer 231, the separated water drops into the lower water collection layer 232, so that the dirt collection box 230 is easier to clean and secondary pollution is avoided. The dirt collection box 230 can be disassembled and separated by pulling it out from the side, making the cleaning and disassembly more convenient. As Figure 2 shown, it is a schematic diagram of the dirt collection box 230 after being disassembled from the tabletop oil fume suction device.

[0039] The filter assembly 300 includes three different filter devices 310, namely an oil mist filter net 311, a water mist filter net 312 and a particulate matter and odor filter net 313. Each filter device 310 stands upright in the tabletop oil fume suction device at intervals. The air after condensation pretreatment enters the oil mist filter net 311 to further filter the oil mist; the filtered gas then passes through the water mist filter net 312 to further absorb the water vapor; finally, the air is purified by the particulate matter and odor filter net 313, and finally the clean air is sent back into the room through the air outlet 120.

[0040] The filtering component 300 further includes a guiding groove 320 with an upward opening. The guiding groove 320 is disposed below the filtering device 310. The liquid droplets captured by the filtering device 310 drip into the guiding groove 320 and are guided to the sewage collection box 230. The filtering device 310 is vertically installed inside the tabletop oil fume suction device. It can not only capture and adsorb oil and water molecules in the air, but also allow the formed liquid to naturally drip into the guiding groove 320 under the action of gravity. The guiding groove 320 guides the liquid to the sewage collection box 230 inside the condensation component, so that these liquids are collected together with the liquid oil-water mixture generated during the condensation pretreatment process. This design ensures that the filtering device 310 is not easily saturated, thus maintaining a continuous and strong filtering effect. At the same time, all pollutants purified from the air are orderly concentrated and collected, further improving the efficiency and cleaning performance of the entire system.

[0041] The air outlet 120 is used to discharge the purified air. As Figures 1 - 3 shown, a fan 160 is provided inside the air outlet 120 or near the air outlet 120. The fan 160 creates a negative pressure to provide strong suction for the tabletop oil fume suction device. Since the fan 160 is provided inside the air outlet 120 or near the air outlet 120, oil fume is not easily attached to the fan blades and will not cause secondary pollution.

[0042] In addition to the above structure, the tabletop oil fume suction device further includes a refrigeration component 400. As Figures 1 - 3 shown, the refrigeration component 400 is in fluid communication with the heat exchange device 220 to provide a cold source for the heat exchange device 220, thereby maintaining the condensation effect of the condensation component 200. The refrigeration component 400 includes a semiconductor condensation sheet 410. The heating surface of the semiconductor condensation sheet 410 is connected to the first cooling fan 420 through a radiator, and the first cooling fan 420 is connected to the heat dissipation air outlet 440; the cooling surface of the semiconductor condensation sheet 410 is connected through a cold water plate 450. The water outlet of the cold water plate 450 is connected to the water outlet pipe 190, and the other end of the water outlet pipe 190 is connected to the water inlet 223 of the heat exchange device 220. A water valve 180 for adjustment is provided on the water outlet pipe 190.

[0043] The refrigeration component 400 further includes a water storage device 460. A water level detector is provided inside the water storage device 460, and the water level detector can issue a reminder when the water level in the water storage device 460 is lower than the set value. The water outlet of the water storage device 460 is connected to the water outlet 224 of the heat exchange device 220 through a water inlet pipe 170. The water inlet of the water storage device 460 is connected to a water pump 470. The water pump 470 is connected to the water inlet of the water cooling row 480. The water outlet of the water cooling row 480 is connected to the water inlet of the cold water plate 450. The second cooling fan 430 is connected to the water cooling row 480 and dissipates heat from the water cooling row 480.

[0044] When the refrigeration component 400 is working, the water pump 470 is turned on, the water valve 180 is opened, and the water in the water pipe starts to flow and is sent into the cold water plate 450; the semiconductor cooling sheet 410 and the first cooling fan 420 start to work to cool the water in the cold water plate 450; at the same time, the cold water is sent into the water inlet 223 of the heat exchange device 220 through the water inlet pipe 170 by the water pump 470; the heat exchange device 220 starts to refrigerate, and at the same time the water level detector detects the water level in the water storage device 460. When the water level is low, it prompts to increase the water volume. When no water is detected, the semiconductor cooling sheet 410 does not work, and the device issues a water shortage alarm. Water can be added from the water injection port 225 of the heat exchange device 220.

Claims

1. A desktop range fumes extraction device, characterized in that: According to the air flow path, at least the following are included in sequence: An air inlet (110) for inhaling air polluted by oil smoke; The condensation assembly (200) comprises a heat exchange device (220) and a dirt collection box (230), which are respectively located at the upper part and the lower part of the condensation assembly (200), the heat exchange device (220) and the dirt collection box (230) are fluidically connected, and the dirt collection box (230) receives liquid condensed in the heat exchange device (220); The filter assembly (300) comprises at least two different filter devices (310), each filter device (310) being erected at intervals inside the tabletop range fumes extraction device, and further comprises a guide device, which is arranged below the filter device (310) and guides pollutants accumulated in the filter device (310) to the pollutant collection box (230); The air outlet (120) is used to discharge the purified air.

2. The desktop range fumes suction device according to claim 1, characterized in that: The filter assembly (300) comprises three different filter devices (310), namely an oil mist filter (311), a water mist filter (312) and a particle and odor filter (313).

3. The desktop range fumes suction device according to claim 1, characterized in that: The dirt collection box (230) comprises an oil collection layer (231) and a water collection layer (232) located below the oil collection layer (231), and oil-water separation filter cotton is placed in the oil collection layer (231).

4. The desktop range fumes suction device according to claim 1, characterized in that: The guide device is a guide groove (320), and the opening of the guide groove (320) faces upward.

5. The desktop range fumes extraction device according to claim 1, characterized in that: The desktop range fume extraction device further comprises an air inlet interface (130), the air inlet interface (130) being opened near the air inlet (110), the air inlet interface (130) being connected to a universal flexible air suction arm (140), the free end of the universal flexible air suction arm (140) being connected to a fume collecting hood (150) for increasing the suction area.

6. The desktop range fumes extraction device according to claim 1, characterized in that: The desktop range fume extraction device further comprises a fan (160) for generating negative pressure, and the fan (160) is arranged in the air outlet (120).

7. The desktop range fumes suction device according to any one of claims 1 to 6, characterized in that: The condensing component (200) has a U-shaped air passage (240), and the heat exchange device (220) is clamped in the two U-shaped side edges (241) of the U-shaped air passage (240). The U-shaped bottom edge (242) of the U-shaped air passage (240) is the gap between the bottom surface of the heat exchange device (220) and the upper surface of the dirt collecting box (230).

8. The desktop range fumes extraction device according to claim 7, characterized in that: At least one vertical first heat exchange tooth (221) extends from the surface of the heat exchange device (220) close to the air inlet (110) in the direction of the air inlet (110), and the first heat exchange tooth (221) divides one of the U-shaped sides (241) of the U-shaped air passage (240) into a corresponding number of branch passages; and at least one vertical second heat exchange tooth (222) extends from the surface of the heat exchange device (220) facing away from the air inlet (110) in the direction of the air inlet (110), and the second heat exchange tooth (222) divides the other U-shaped side (241) of the U-shaped air passage (240) into a corresponding number of branch passages.

9. The desktop range fumes suction device according to claim 8, characterized in that: The desktop range fumes extraction device further comprises a refrigeration component (400), which is fluidically connected to the heat exchange device (220) to provide a cold source for the heat exchange device (220).

10. The desktop range fumes extraction device according to claim 9, characterized in that: The refrigeration assembly (400) comprises a water storage device (460), wherein a water level detector is provided in the water storage device (460), and the water level detector can issue a reminder when the water level in the water storage device (460) is lower than a set value.

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