Cooking fume filtering device, cooking fume treatment equipment and control method and control device of cooking fume treatment equipment

Abstract

The invention discloses an oil fume filtering device, oil fume treatment equipment and a control method and device thereof. The oil smoke filtering device comprises a frame; the discharge assembly is arranged on the frame, comprises a discharge electrode and a counter electrode which are oppositely arranged, and is arranged to discharge to generate plasma; the counter electrode is arranged to be a conductive filtering piece used for filtering oil smoke. According to the scheme, the filtering piece is arranged to be a conductive filtering piece, and the discharge electrode is added. The filtering piece has a physical blocking or adsorbing function to achieve the oil smoke intercepting function, has the electric conduction capacity and can serve as a counter electrode. Therefore, the discharge assembly can realize bipolar plasma discharge to generate high-energy particles such as plasma and ozone, and the high-energy particles can perform partial oxygenolysis on molecules such as oil smoke; and the surface of the conductive filtering piece can also adsorb part of charges to generate electrostatic adsorption capacity, so that the oil fume interception effect can be improved. Therefore, according to the scheme, the oil fume filtering effect can be effectively improved, and the oil fume intercepting effect is improved.

Description

Technical Field

[0001] The present application relates to but is not limited to the field of air treatment technology, and specifically refers to an oil fume filtering device, an oil fume treatment device, and a control method and a control device thereof. Background Art

[0002] At present, kitchen air conditioners face a relatively harsh oil fume environment in their use scenarios. In order to prevent the oil fume gas in the environment from entering the air conditioner body and causing material corrosion and dirt, a filter is often added to the return air outlet of the air conditioner. Common filter materials include needle-punched fiber cotton, fiber cloth, etc. The main principle is to physically block or adsorb the oil fume gas through its internal microporous structure. However, whether it is fiber cotton or other materials, in order to take into account wind resistance, the pore density and thickness of the filter material cannot be too large, which limits the improvement of the oil fume interception efficiency of such materials. Summary of the invention

[0003] The technical problem to be solved by the present application is to provide an oil fume filtering device, an oil fume treatment device and a control method and a control device thereof, which are beneficial to improving the efficiency of oil fume interception.

[0004] To this end, an embodiment of the present application provides an oil fume filtering device, comprising: a frame; and a discharge component, which is arranged on the frame, and the discharge component includes a discharge electrode and a counter electrode arranged opposite to each other, and is configured to discharge and generate plasma; the counter electrode is configured as a conductive filter element for filtering oil fume.

[0005] The oil fume filtering device provided in the embodiment of the present application includes a frame and a discharge assembly. The frame is a mounting carrier of the discharge assembly, and the frame can be mounted to the return air outlet of the kitchen air conditioner to fix the oil fume filtering device on the kitchen air conditioner. The frame can be provided with a connection structure such as a buckle and a screw column to realize a fixed connection between the frame and the air conditioner casing.

[0006] Furthermore, the embodiment of the present application sets the filter element as a conductive filter element, and adds a discharge electrode. The filter element is not an ordinary filter element that only has a physical barrier or adsorption function, but has both the physical barrier or adsorption function of an ordinary filter element to achieve the function of intercepting oil smoke, and has the conductive ability so that the filter element can also serve as a counter electrode of the discharge electrode. In this way, when the discharge electrode and the counter electrode are energized, bipolar plasma discharge can be achieved to generate high-energy particles such as plasma and ozone. The high-energy particles can partially oxidize and decompose molecules such as oil smoke that pass through, so as to reduce the amount of oil smoke entering the body and improve the interception effect of oil smoke. Moreover, the surface of the conductive filter element can also adsorb part of the charge to generate electrostatic adsorption capacity, thereby also being able to improve the interception effect of oil smoke. Therefore, the oil smoke filtering device provided in the embodiment of the present application can effectively improve the filtering effect of oil smoke and effectively improve the interception effect of oil smoke.

[0007] Based on the above technical solution, the present application can also be improved as follows.

[0008] In an exemplary embodiment, the conductive filter element includes a porous filter substrate and a conductive material supported on the porous filter substrate.

[0009] In an exemplary embodiment, the conductive material includes one or more of an adsorbent, an oleophilic filler, and an antibacterial agent.

[0010] In an exemplary embodiment, the adsorbent includes activated carbon.

[0011] In an exemplary embodiment, the activated carbon includes one or more of coconut shell activated carbon, wood activated carbon, and coal activated carbon; and / or the iodine adsorption value of the activated carbon is between 700 and 1200; and / or the mass ratio of the activated carbon to the porous filter substrate is in the range of 50% to 80%.

[0012] In an exemplary embodiment, the oleophilic filler includes oleophilic micron-sized metal oxide.

[0013] In an exemplary embodiment, the metal oxide includes one or more of zinc oxide, iron oxide, and copper oxide; and / or the mass ratio of the oleophilic filler to the porous filter substrate is in the range of 0.5% to 8%.

[0014] In an exemplary embodiment, the antibacterial agent includes one or more of nano zinc oxide, nano silver oxide, and nano copper oxide; and / or the mass ratio of the antibacterial agent to the porous filter substrate is in the range of 0.5% to 2%.

[0015] In an exemplary embodiment, the mass ratio of the total mass of the oleophilic filler and the antimicrobial agent to the mass of the porous filtration substrate is in a range of 1% to 10%.

[0016] In an exemplary embodiment, the porous filter substrate is a foam sponge; the PPI index of the foam sponge is in the range of 40PPI to 60PPI; and / or the thickness of the foam sponge is in the range of 3mm to 8mm.

[0017] In an exemplary embodiment, the foam sponge is a polyurethane foam sponge; and / or the oleophilic filler and the antibacterial agent are configured to be loaded on the porous filter substrate during the foaming process; the adsorbent is configured to be loaded on the porous filter substrate after the foaming is completed.

[0018] In an exemplary embodiment, the frame is provided with side panels and grille bars, the grille bars are located on the inner side of the side panels, and the height of the side panels along the airflow direction is greater than the height of the grille bars along the airflow direction, the conductive filter element is fixed to the side panels, and the discharge electrode is fixed to the grille bars.

[0019] In an exemplary embodiment, the discharge electrode includes a base and a discharge portion, wherein the base is embedded in the grid bars, and the discharge portion is disposed at one end of the base facing the counter electrode and protrudes from the grid bars.

[0020] In an exemplary embodiment, the discharge electrode includes a discharge portion, and the discharge portion includes one or more of a discharge sawtooth, a discharge needle, and a discharge fiber; and / or, the voltage of the discharge electrode is in the range of -10kV to -2kV; and / or, the number of the discharge electrodes is at least one; and / or, the material of the discharge electrode is metal or carbon fiber.

[0021] An embodiment of the present application also provides an oil fume treatment device, comprising: a casing, the casing being provided with an air duct; and an oil fume filtering device as described in any one of the above embodiments, installed in the casing and configured to filter the oil fume flowing through the air duct.

[0022] In an exemplary embodiment, the oil fume treatment device further includes: a first detection device, configured to detect the concentration of oil fume flowing through the discharge component; and a second detection device, configured to detect the working parameters of the discharge component.

[0023] The present application embodiment provides a control method for an oil fume treatment device as described in any one of the above embodiments, the control method comprising:

[0024] Turning on the discharge assembly;

[0025] Determine whether the reminder condition for replacing the conductive filter element is met;

[0026] Based on the determination that the reminder condition for replacing the conductive filter element is met, a reminder message for replacing the conductive filter element is issued.

[0027] In an exemplary embodiment, the determining whether the reminder condition for replacing the conductive filter element is met includes:

[0028] Obtaining operating parameters of the discharge component;

[0029] Determining whether the conductive filter element needs to be replaced according to the working parameters of the discharge assembly;

[0030] Based on the operating parameter of the discharge component exceeding the corresponding set operating parameter range, determining that the reminder condition for replacing the conductive filter element is met;

[0031] Based on the fact that the operating parameter of the discharge component does not exceed the corresponding set operating parameter range, it is determined that the reminder condition for replacing the conductive filter element is not met.

[0032] In an exemplary embodiment, the operating parameters include operating current and / or power.

[0033] In an exemplary embodiment, the control method further includes:

[0034] Obtaining the concentration of oil smoke flowing through the discharge component;

[0035] Based on the fact that the oil smoke concentration exceeds a set oil smoke concentration range, the step of turning on the discharge component is performed.

[0036] An embodiment of the present application further provides a control device, including a processor and a memory storing a computer program, wherein the processor implements the steps of the control method described in any one of the above embodiments when executing the computer program. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A schematic diagram of the structure of a fume filtration device provided in some embodiments of the present application;

[0038] Figure 2 A schematic diagram of a partial anatomical structure of an oil fume filtering device provided in some embodiments of the present application;

[0039] Figure 3 A schematic diagram of a partial structure of a conductive filter element of an oil fume filtering device provided in some embodiments of the present application;

[0040] Figure 4 A schematic structural diagram of a framework of an oil fume filtering device provided in some embodiments of the present application;

[0041] Figure 5 A schematic diagram of the assembly of a frame and a discharge electrode of an oil fume filtering device provided in some embodiments of the present application;

[0042] Figure 6 A flow chart of a control method provided in some embodiments of the present application;

[0043] Figure 7 A flowchart of a control method provided for some embodiments of the present application.

[0044] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0045] 1 frame, 11 side panels, 12 grille bars;

[0046] 2 discharge electrode, 21 base, 22 discharge part;

[0047] 3 conductive filter element, 31 porous filter substrate, 32 adsorbent, 33 oleophilic filler, 34 antibacterial agent;

[0048] 4 high voltage pole;

[0049] 5 grounding electrode. DETAILED DESCRIPTION

[0050] The principles and features of the present application are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present application and are not used to limit the scope of the present application.

[0051] At present, kitchen air conditioners face a relatively harsh oil fume environment in their use scenarios. In order to prevent the oil fume gas in the environment from entering the air conditioner body and causing material corrosion and dirt, a filter is often added to the return air outlet of the air conditioner. Common filter materials include needle-punched fiber cotton, fiber cloth, etc. The main principle is to physically block or adsorb the oil fume gas through its internal microporous structure. However, whether it is fiber cotton or other materials, in order to take into account wind resistance, the pore density and thickness of the filter material cannot be too large, which limits the improvement of the oil fume interception efficiency of such materials.

[0052] In addition, although conventional filters can effectively prevent oil smoke from entering the body through physical blocking or adsorption, the filters are also enriched with small molecules of oil smoke, which can easily breed bacteria and mold and produce odor.

[0053] Moreover, the filter needs to be replaced after being used for a period of time. However, since the filter is located inside the return air vent, the user cannot know the usage status of the filter without disassembling the return air vent, making it difficult to replace it in time.

[0054] The oil fume filtering device, oil fume treatment equipment, and control method and control device provided in the embodiments of the present application can effectively solve the above problems. On the one hand, it can effectively improve the oil fume filtration efficiency of the oil fume filtering device without increasing wind resistance, and at the same time improve the problem of bacterial and mold growth; on the other hand, it can also promptly remind the user to replace the filter material when it needs to be replaced. The oil fume treatment equipment can be a kitchen air conditioner or other oil fume treatment equipment. The following is a detailed description taking the oil fume treatment equipment as a kitchen air conditioner as an example.

[0055] like Figures 1 to 5 As shown, an embodiment of the present application provides an oil fume filtering device, including: a frame 1 and a discharge assembly.

[0056] The discharge assembly is arranged on the frame 1. The discharge assembly comprises a discharge electrode 2 and a counter electrode arranged opposite to each other, and is arranged to discharge and generate plasma. The counter electrode is arranged as a conductive filter element 3 for filtering oil smoke.

[0057] like Figure 2As shown, the discharge electrode 2 can be connected to the high voltage electrode 4 of the high voltage power supply. The counter electrode can be grounded or connected to the low voltage electrode or ground electrode 5 of the high voltage power supply.

[0058] The oil fume filtering device provided in the embodiment of the present application includes a frame 1 and a discharge assembly. The frame 1 is a mounting carrier of the discharge assembly, and the frame 1 can be installed at the return air outlet of the kitchen air conditioner to fix the oil fume filtering device on the kitchen air conditioner. The frame 1 can be provided with a connection structure such as a buckle and a screw column to realize a fixed connection between the frame 1 and the air conditioner casing.

[0059] Furthermore, the embodiment of the present application sets the filter element as a conductive filter element 3, and adds a discharge electrode 2. The filter element is not an ordinary filter element that only has a physical barrier or adsorption function, but has both the physical barrier or adsorption function of an ordinary filter element to achieve the function of intercepting oil smoke, and has the conductive ability so that the filter element can also serve as a counter electrode of the discharge electrode 2. In this way, when the discharge electrode 2 and the counter electrode are energized, bipolar plasma discharge can be achieved to generate high-energy particles such as plasma and ozone. The high-energy particles can partially oxidize and decompose molecules such as oil smoke passing through to reduce the amount of oil smoke entering the body and improve the interception effect of oil smoke. In addition, the surface of the conductive filter element 3 can also adsorb part of the charge to generate electrostatic adsorption capacity, thereby also improving the interception effect of oil smoke. Therefore, the oil smoke filtering device provided in the embodiment of the present application can effectively improve the filtering effect of oil smoke and effectively improve the interception effect of oil smoke.

[0060] In some exemplary embodiments, the conductive filter element 3 includes a porous filter substrate 31 and a conductive material supported on the porous filter substrate 31, such as Figure 3 shown.

[0061] The porous filter substrate 31 has a porous structure with a large specific surface area, which can achieve a good filtering and intercepting effect on oil smoke. The conductive material is loaded on the porous filter substrate 31, which can make the filter element conductive, thereby forming a conductive filter element 3.

[0062] In some exemplary embodiments, the conductive material includes one or more of an adsorbent 32, an oleophilic filler 33, and an antimicrobial agent 34, such as Figure 3 shown.

[0063] In addition to making the filter element conductive, the adsorbent 32 also has good adsorption capacity, which is beneficial to further improve the interception and filtration effect of the conductive filter element 3 on oil smoke.

[0064] In addition to making the filter element conductive, the oleophilic filler 33 also has good oleophilicity, which is beneficial for the adsorption of oil smoke on the conductive filter element 3, thereby further improving the interception and filtering effect of the conductive filter element 3 on oil smoke.

[0065] In addition to making the filter element conductive, the antibacterial agent 34 also has a good antibacterial effect, which is helpful to improve the problem of bacterial growth and odor caused by mildew caused by the accumulation of oil smoke during use.

[0066] In some exemplary embodiments, the adsorbent 32 includes activated carbon. Activated carbon itself has good electrical conductivity and excellent adsorption performance. Of course, the adsorbent 32 can also be other conductive adsorption materials.

[0067] In some embodiments, the activated carbon includes one or more of coconut shell activated carbon, wood activated carbon, and coal activated carbon. Of course, the types of activated carbon are not limited to these types and can be adjusted as needed.

[0068] In some embodiments, the iodine adsorption value of the activated carbon is between 700 and 1200, such as 700, 800, 900, 1000, 1100, 1200, etc.

[0069] The mass ratio of activated carbon to porous filter substrate 31 is in the range of 50% to 80%, such as 50%, 60%, 70%, 80%, etc. In other words, the mass ratio of activated carbon to porous filter substrate 31 is in the range of 50:100 to 80:100.

[0070] The iodine adsorption value and addition amount of activated carbon have an impact on the filtering effect of the oil fume filtration device. Through experimental research, it is found that limiting the iodine adsorption value and addition amount of activated carbon to the above range can achieve a better oil fume interception effect, while taking into account the wind pressure loss and cost.

[0071] Of course, the iodine adsorption value and addition amount of activated carbon are not limited to the above ranges and can be adjusted as needed.

[0072] In some exemplary embodiments, the oleophilic filler 33 includes, but is not limited to, oleophilic micron-sized metal oxides.

[0073] In some embodiments, the metal oxide includes, but is not limited to, one or more of zinc oxide, iron oxide, and copper oxide.

[0074] In some embodiments, the mass ratio of the oleophilic filler 33 to the porous filter substrate 31 is in the range of 0.5% to 8%, such as 0.5%, 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, etc. In other words, the mass ratio of the oleophilic filler 33 to the porous filter substrate 31 is in the range of 0.5:100 to 8:100.

[0075] The amount of oleophilic filler 33 added has an impact on the filtering effect and wind pressure loss of the oil fume filtering device. Through experimental research, limiting the amount of oleophilic filler 33 added within the above range can obtain a better oil fume interception effect, and the wind pressure loss is relatively small, while taking into account the cost.

[0076] In some exemplary embodiments, the antimicrobial agent 34 includes, but is not limited to, one or more of nano zinc oxide, nano silver oxide, and nano copper oxide.

[0077] Among them, nano-scale zinc oxide is a type of highly efficient antibacterial material that can give the sponge filter antibacterial and mildew-proof properties, effectively improving the odor problem caused by bacterial growth and mildew caused by the enrichment of oil smoke during use.

[0078] In some exemplary embodiments, the mass ratio of the antimicrobial agent 34 to the porous filter substrate 31 is in the range of 0.5% to 2%, such as 0.5%, 1%, 1.5%, 2%, etc. In other words, the mass ratio of the antimicrobial agent 34 to the porous filter substrate 31 is in the range of 0.5:100 to 2:100.

[0079] The amount of antimicrobial agent 34 added has an impact on the filtering effect of the oil fume filtering device. According to experimental research, limiting the amount of antimicrobial agent 34 added to the above range can achieve a better oil fume interception effect, while taking into account both wind pressure loss and cost.

[0080] In some exemplary embodiments, the mass ratio of the total mass of the oleophilic filler 33 and the antimicrobial agent 34 to the porous filter substrate 31 is in the range of 1% to 10%, such as 1%, 1.5%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, etc. In other words, the mass ratio of the total mass of the oleophilic filler 33 and the antimicrobial agent 34 to the porous filter substrate 31 is in the range of 1:100 to 10:100.

[0081] In some exemplary embodiments, the porous filtering substrate 31 is a foam sponge.

[0082] The foamed sponge has a better physical barrier or adsorption capacity for oil fume gas, and is convenient for loading the above-mentioned adsorbent 32, oleophilic filler 33, antibacterial agent 34 and other conductive materials.

[0083] In some embodiments, the PPI index of the foaming sponge is in the range of 40 PPI to 60 PPI, such as 40 PPI, 50 PPI, 60 PPI. PPI refers to the mass of the sponge per square inch. The higher the PPI index, the softer the sponge; the lower the PPI index, the harder the sponge.

[0084] The PPI index of the foam sponge affects the wind resistance of the oil fume filter device, and thus affects the filtering effect. Through experimental research, it is found that limiting the PPI index of the foam sponge to the above range can achieve a better oil fume interception effect, and can take into account both wind pressure loss and cost.

[0085] In some embodiments, the thickness of the foamed sponge is in the range of 3 mm to 8 mm, such as 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, etc.

[0086] The thickness of the foam sponge affects the wind resistance of the oil fume filter device, and further affects the filtering effect. Through experimental research, limiting the thickness of the foam sponge to the above range can achieve a better oil fume interception effect, and can take into account both wind pressure loss and cost.

[0087] Of course, the PPI index and thickness of the foamed sponge are not limited to the above ranges and can be adjusted as needed.

[0088] In some embodiments, the foam sponge may be, but is not limited to, polyurethane foam sponge.

[0089] In some embodiments, the oleophilic filler 33 and the antibacterial agent 34 are configured to be loaded on the porous filter substrate 31 during the foaming process. The adsorbent 32 is configured to be loaded on the porous filter substrate 31 after the foaming is completed.

[0090] Since the particle sizes of the lipophilic filler 33 and the antibacterial agent 34 are relatively small (e.g. Figure 3 As shown in the figure, and the content is relatively small, mixing it with the raw materials of the foaming sponge for foaming will not have too much impact on the foaming process itself, and it can be evenly dispersed in the foaming sponge. Therefore, the lipophilic filler 33 and the antibacterial agent 34 can be loaded on the porous filter substrate 31 during the foaming process, without having to be loaded separately after the foaming is completed, which is conducive to simplifying the production process of the conductive filter element 3 and reducing production costs. Of course, the lipophilic filler 33 and the antibacterial agent 34 can also be loaded on the porous filter substrate 31 after the foaming is completed.

[0091] The particle size of the adsorbent 32 is relatively large (e.g. Figure 3 As shown), and the content is relatively high, if it is mixed with the raw materials of the foaming sponge for foaming, it may increase the difficulty of foaming and increase the cost of the foaming process. Therefore, the adsorbent 32 can be loaded on the porous filter substrate 31 after the foaming is completed, which is conducive to simplifying the production process of the conductive filter element 3 and reducing the production cost, and the adsorbent 32 can be evenly distributed on the surface of the porous filter substrate 31 to give full play to the adsorption capacity. The adsorbent 32 can be loaded by spraying, dipping, etc. Of course, the adsorbent 32 can also be loaded on the porous filter substrate 31 during the foaming process.

[0092] In some exemplary embodiments, the frame 1 is provided with side panels 11 and grille bars 12, such as Figure 4 The grille bar 12 is located on the inner side of the side panel 11, and the height of the side panel 11 along the airflow direction is greater than the height of the grille bar 12 along the airflow direction. The conductive filter element 3 is fixed to the side panel 11, and the discharge electrode 2 is fixed to the grille bar 12. Figure 5 shown.

[0093] In this way, the oil fume filtering device itself can also serve as a return air grille. The existing return air grille can be improved to obtain the oil fume filtering device of the embodiment of the present application, which is conducive to reducing the cost of the whole machine.

[0094] The conductive filter element 3 can be fixed on the side panel 11 by interference fit, bonding or the like.

[0095] In some exemplary embodiments, the discharge electrode 2 includes a base 21 and a discharge portion 22, such as Figure 2 The base 21 is embedded in the grid bar 12 , and the discharge portion 22 is provided at one end of the base 21 facing the counter electrode and protrudes from the grid bar 12 .

[0096] The base 21 may be a sheet-like structure, a plate-like structure, etc., and may be fixed in the grid bar 12 by interference fit, fasteners, etc. The discharge portion 22 may discharge to the conductive filter element 3 .

[0097] The protruding height of the discharge portion 22 can be adjusted as needed, and can be reasonably adjusted in combination with the gap between the discharge portion 22 and the conductive filter element 3 and the voltage of the discharge electrode 2. The thickness of the base 21 can also be adjusted as needed.

[0098] In some exemplary embodiments, the discharge electrode 2 includes a discharge portion 22, and the discharge portion 22 may include but is not limited to a discharge sawtooth (such as Figure 2 and Figure 5 As shown in the figure, the discharge part 22 may be one or more of a discharge needle and a discharge fiber. These types of discharge parts 22 all have good discharge effects.

[0099] In some exemplary embodiments, the voltage of the discharge electrode 2 may be in the range of, but not limited to, -10 kV to -2 kV, such as -10 kV, -9 kV, -8 kV, -7 kV, -6 kV, -5 kV, -4 kV, -3 kV, -2 kV, etc. The potential of the counter electrode may be zero potential.

[0100] The discharge electrode 2 adopts negative high voltage, so that the generated plasma contains more negative ions, which are beneficial to improving air quality.

[0101] In some embodiments, the material of the discharge electrode 2 may be, but is not limited to, a conductor such as metal (such as stainless steel), carbon fiber, etc. For example, the discharge electrode 2 may be a stainless steel sawtooth piece.

[0102] In some embodiments, the number of the discharge electrode 2 is at least one.

[0103] The number of the discharge electrode 2 may be one or more. The multiple discharge electrodes 2 may be fixed on the same grid bar 12 or on multiple grid bars 12 .

[0104] The embodiment of the present application further provides an oil fume treatment device (not shown in the figure), comprising: a housing and an oil fume filtering device as in any one of the above embodiments.

[0105] The casing is provided with an air duct, and the oil fume filtering device is installed on the casing and is configured to filter the oil fume flowing through the air duct.

[0106] The oil fume treatment equipment provided in the embodiment of the present application includes the oil fume filtering device of any one of the above embodiments, and thus has all the above beneficial effects, which will not be elaborated here.

[0107] The oil fume treatment device may be, but is not limited to, a kitchen air conditioner. The oil fume filtering device may be located at the air inlet of the air duct (i.e., the return air outlet of the kitchen air conditioner), at the air outlet of the air duct, or in the air duct.

[0108] In some exemplary embodiments, the oil fume treatment device further includes: a first detection device configured to detect the concentration of oil fume flowing through the discharge component.

[0109] The oil fume treatment equipment also includes: a second detection device, which is configured to detect the working parameters of the discharge component.

[0110] The first detection device may be a fume concentration sensor, and the second detection device may be a current sensor or a power detection device.

[0111] like Figure 6 As shown, the embodiment of the present application also provides a control method for the oil fume treatment device as in the above embodiment, and the control method includes:

[0112] Step S202: Turn on the discharge component;

[0113] Step S204: determining whether the reminder condition for replacing the conductive filter element is met;

[0114] Step S206: Based on the determination that the reminder condition for replacing the conductive filter element is met, a reminder message for replacing the conductive filter element is issued.

[0115] In this way, when the conductive filter element 3 needs to be replaced, the user can be reminded to replace it in time, thereby realizing intelligent monitoring and replacement reminder of the conductive filter element 3, which is conducive to improving the user's experience.

[0116] The reminder information may include but is not limited to: sound signals, light signals, picture signals, etc. The reminder information may be delivered to the user through a reminder device, or may be reminded to the user through a terminal device (such as a mobile phone, a computer, etc.).

[0117] In some exemplary embodiments, determining whether a reminder condition for replacing the conductive filter element is met includes:

[0118] Obtaining operating parameters of the discharge component;

[0119] Determine whether the conductive filter element needs to be replaced according to the working parameters of the discharge component 3;

[0120] Based on the operating parameter of the discharge component exceeding the corresponding set operating parameter range, it is determined that the reminder condition for replacing the conductive filter element 3 is met;

[0121] Based on the fact that the operating parameters of the discharge component do not exceed the corresponding set operating parameter range, it is determined that the reminder condition for replacing the conductive filter element 3 is not met.

[0122] The operating parameters include operating current and / or power.

[0123] Since the conductive filter 3 is used as the counter electrode of the discharge component, when the conductive filter 3 is seriously oiled, its conductivity will be seriously affected, which will in turn affect the working parameters of the discharge component. Therefore, it is possible to judge whether the conductive filter 3 needs to be replaced based on the working parameters of the discharge component, and the judgment accuracy is relatively high.

[0124] For example, as the use time of the conductive filter 3 increases, the surface of the conductive filter 3 will gradually be covered by an oil film, resulting in a decrease in the overall conductivity of the conductive filter 3, thereby causing a decrease in the current I in the circuit where the discharge component is located, and further causing a decrease in the power W1 of the entire oil fume filtering device. Therefore, it is possible to determine whether the conductive filter 3 needs to be replaced by the current of the discharge component, or it is possible to determine whether the conductive filter 3 needs to be replaced by the power of the discharge component.

[0125] When I≤set current value I0, it indicates that the conductive filter element 3 has serious oil accumulation, and the user can be reminded to replace the conductive filter element 3.

[0126] When W≤the set power value W0, it also indicates that the conductive filter element 3 has serious oil accumulation, and the user can be reminded to replace the conductive filter element 3 at this time.

[0127] In some exemplary embodiments, the control method further includes:

[0128] Obtaining the concentration of oil smoke flowing through the discharge component;

[0129] Based on the oil smoke concentration exceeding the set oil smoke concentration range, the step of starting the discharge component is performed.

[0130] When the oil fume concentration is lower than the set oil fume concentration range, it indicates that the oil fume concentration is low, and the oil fume can be effectively intercepted only by the filtering capacity of the conductive filter element 3 itself.

[0131] When the oil fume concentration is greater than or equal to the set oil fume concentration range, it indicates that the oil fume concentration is high, and the filtering capacity of the conductive filter element 3 itself is not enough to effectively intercept the oil fume, so the discharge component is turned on to improve the interception effect of the oil fume.

[0132] The following introduces some embodiments and tests the oil fume interception rate. Oil fume interception rate: refers to the mass percentage of oil fume components intercepted by the filter, which can be tested using the method in T / CAS682-2023 Household Kitchen Air Conditioner.

[0133] Example 1: Using Figures 1 to 5 The device structure shown in the figure, wherein the discharge electrode 2 is made of stainless steel sawtooth material, the exposed height of the tip is 1.5mm, the high voltage input value is -5kV, the conductive sponge is made of polyurethane foaming process, 1% of nano zinc oxide and 8% of oleophilic micron zinc oxide are added, and the wood activated carbon with an iodine value of 800 is used for loading, the loading amount is 70%, the mesh number of the sponge is 50PPI, the thickness is 6mm, and the distance between the sponge and the sawtooth tip is 10mm. The device is placed at the return air outlet of the air conditioner and tested using the method in the household kitchen air conditioner of T / CAS682-2023. The oil fume interception rate is 97.8%, and the wind pressure loss is -45.1Pa.

[0134] Example 2: Using Figures 1 to 5 The device structure shown in the figure, wherein the discharge electrode 2 is made of stainless steel sawtooth material, the tip exposed height is 1.5mm, the high voltage input value is 0, the conductive sponge is made of polyurethane foaming process, 1% of nano zinc oxide and 8% of oleophilic micron zinc oxide are added, and the wood activated carbon with an iodine value of 800 is used for loading, the loading amount is 70%, the mesh number of the sponge is 50PPI, the thickness is 6mm, and the distance between the sponge and the sawtooth tip is 10mm. The device is placed at the return air outlet of the air conditioner and tested using the method in the household kitchen air conditioner of T / CAS682-2023. The oil fume interception rate is 91.8%, and the wind pressure loss is -45.1Pa.

[0135] Embodiment 3: Using Figures 1 to 5The device structure shown in the figure, wherein the discharge electrode 2 is made of stainless steel sawtooth material, the tip exposed height is 1.5mm, the high voltage input value is -5kV, the conductive sponge is made of polyurethane foaming process, no oleophilic filler 33 and antibacterial agent 34 are added to the material, wood activated carbon with an iodine value of 800 is used for loading, the loading amount is 70%, the mesh number of the sponge is 50PPI, the thickness is 6mm, and the distance between the sponge and the sawtooth tip is 10mm. The device is placed at the return air outlet of the air conditioner, and the method in the household kitchen air conditioner of T / CAS682-2023 is used for testing. The oil fume interception rate is 94.6%, and the wind pressure loss is -44.8Pa.

[0136] Embodiment 4: Using Figures 1 to 5 The device structure shown in the figure, wherein the discharge electrode 2 is made of stainless steel sawtooth material, the tip exposed height is 1.5mm, the high voltage input value is -5kV, the conductive sponge is made of polyurethane foaming process, 1% of nano zinc oxide and 9% of oleophilic micron zinc oxide are added, and the wood activated carbon with an iodine value of 800 is used for loading, the loading amount is 70%, the mesh number of the sponge is 50PPI, the thickness is 6mm, and the distance between the sponge and the sawtooth tip is 10mm. The device is placed in the return air outlet of the air conditioner and tested using the method in the household kitchen air conditioner of T / CAS682-2023. The oil fume interception rate is 96.6%, and the wind pressure loss is -46.3Pa.

[0137] Example 5: Using Figures 1 to 5 The device structure shown in the figure, wherein the discharge electrode 2 is made of stainless steel sawtooth material, the tip exposed height is 1.5mm, the high voltage input value is -5kV, the conductive sponge is made of polyurethane foaming process, 1% of nano zinc oxide and 8% of oleophilic micron zinc oxide are added, and the wood activated carbon with an iodine value of 800 is used for loading, the loading amount is 70%, the mesh number of the sponge is 60PPI, the thickness is 6mm, and the distance between the sponge and the sawtooth tip is 10mm. The device is placed at the return air outlet of the air conditioner and tested using the method in the household kitchen air conditioner of T / CAS682-2023. The oil fume interception rate is 98.2%, and the wind pressure loss is -53.8Pa.

[0138] In the above embodiments, the amount of nano zinc oxide added refers to the mass percentage of nano zinc oxide in the polyurethane sponge. The amount of lipophilic zinc oxide added refers to the mass percentage of lipophilic zinc oxide in the polyurethane sponge. The amount of activated carbon loaded refers to the mass percentage of activated carbon in the polyurethane sponge.

[0139] From the results of Example 1 and Example 2, the oil fume interception effect when the high-voltage electrode is working is significantly higher than when the high-voltage electrode is not working.

[0140] Comparison of the results of Example 1 and Example 3 shows that the addition of the lipophilic filler 33 and the antibacterial agent 34 is also beneficial to the performance of the high voltage electrode effect.

[0141] The results of Example 1 and Example 4 show that adding too much oleophilic filler 33 will affect the foaming effect of the sponge, resulting in increased wind resistance and decreased interception rate.

[0142] The results of Example 1 and Example 5 show that although the increase in the number of sponge meshes can increase the oil fume interception rate, the wind resistance will also increase significantly at the same time.

[0143] In addition, the device can also provide users with filter replacement reminder services. The control logic of the entire device is as follows Figure 7 As shown. When the air conditioner is started, the oil fume sensing probe (i.e., the first detection device) at the return air outlet obtains the oil fume concentration C in the return air. When the concentration C is detected to be higher than the preset value C0, the ion generating device (i.e., the discharge component) is started to improve the efficiency of oil fume filtration. In the bipolar ion discharge process, the conductive filter element 3 acts as a zero pole / ground pole. As the use time of the conductive filter element 3 increases, the surface of the conductive filter element 3 will gradually be covered by an oil film, resulting in a decrease in the overall conductivity of the conductive filter element 3, thereby causing a decrease in the current I in the entire circuit, and then causing a decrease in the power W of the entire device. When it is detected that W is lower than the preset value W0 or I is lower than the preset value I0, it indicates that the filter has been seriously accumulated with oil. At this time, the user can be reminded to replace it, thereby realizing intelligent monitoring of the filter usage and replacement reminders.

[0144] An embodiment of the present application also provides a control device, including a processor and a memory storing a computer program. When the processor executes the computer program, the steps of the control method in any of the above embodiments are implemented, and thus all the above-mentioned beneficial effects are achieved, which will not be repeated here.

[0145] The processor may be an integrated circuit chip with signal processing capabilities. The above-mentioned processor may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present invention may be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0146] The embodiment of the present application also provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, the steps of the control method in any of the above embodiments are implemented, thereby having all the above-mentioned beneficial effects, which will not be repeated here.

[0147] In summary, the fume filter device, fume treatment equipment, and control method and control device provided by the embodiment of the present application, based on the original physical interception, add bipolar ion discharge. The generated high-energy electric field can degrade the small molecules of fume gas in the airflow, and the activated carbon sponge loaded with charge can also effectively improve the efficiency of fume interception under the addition of electrostatic adsorption. At the same time, the high-energy electric field and the nano-antibacterial agent components added to the sponge can also effectively reduce the problem of bacterial growth and mold and odor. On the other hand, by detecting the power change / current change in the circuit where the discharge component is located, the dirtiness of the conductive filter element is automatically sensed, and the user can be actively reminded to replace it when it needs to be replaced.

[0148] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0149] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0150] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0151] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0152] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0153] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

[0154] In any one or more of the above exemplary embodiments, the functions described may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions may be stored on a computer-readable medium or transmitted via a computer-readable medium as one or more instructions or codes, and executed by a hardware-based processing unit. A computer-readable medium may include a computer-readable storage medium corresponding to a tangible medium such as a data storage medium, or a communication medium that facilitates a computer program, such as any medium transmitted from one place to another according to a communication protocol. In this way, a computer-readable medium may generally correspond to a non-temporary tangible computer-readable storage medium or a communication medium such as a signal or carrier wave. A data storage medium may be any available medium that can be accessed by one or more computers or one or more processors to retrieve instructions, codes, and / or data structures for implementing the technology described in the present disclosure. A computer program product may include a computer-readable medium.

[0155] By way of example and not limitation, such computer-readable storage media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage, flash memory, or any other medium that can be used to store the desired program code in the form of instructions or data structures and can be accessed by a computer. Moreover, any connection may also be referred to as a computer-readable medium. For example, if instructions are transmitted from a website, server or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio and microwave, then coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio and microwave are included in the definition of medium. However, it should be understood that computer-readable storage media and data storage media do not include connections, carrier waves, signals, or other transient (transient) media, but are directed to non-transient tangible storage media. As used herein, disks and optical disks include compact disks (CDs), laser disks, optical disks, digital versatile disks (DVDs), floppy disks, or Blu-ray disks, etc., where disks typically reproduce data magnetically, while optical disks use lasers to reproduce data optically. Combinations of the above should also be included within the scope of computer-readable media.

[0156] For example, instructions may be executed by one or more processors such as one or more digital signal processors (DSPs), general purpose microprocessors, application specific integrated circuits (ASICs), field programmable logic arrays (FPGAs), or other equivalent integrated or discrete logic circuits. Thus, the term "processor" as used herein may refer to any of the above structures or any other structures suitable for implementing the techniques described herein. Additionally, in some aspects, the functionality described herein may be provided within dedicated hardware and / or software modules configured for encoding and decoding, or incorporated in a combined codec. Also, the techniques may be fully implemented in one or more circuits or logic elements.

[0157] The technical solutions of the embodiments of the present disclosure can be implemented in a wide variety of devices or equipment, including wireless mobile phones, integrated circuits (ICs) or a group of ICs (e.g., chipsets). Various components, modules or units are described in the embodiments of the present disclosure to emphasize the functional aspects of the devices configured to perform the described techniques, but they do not necessarily need to be implemented by different hardware units. Instead, as described above, the various units can be combined in a codec hardware unit or provided by a collection of interoperable hardware units (including one or more processors as described above) in combination with suitable software and / or firmware.

Claims

1. A fume filtering device, characterized in that: include: frame; and The discharge assembly is arranged on the frame, and comprises a discharge electrode and a counter electrode arranged opposite to each other, and is arranged to discharge and generate plasma; the counter electrode is arranged as a conductive filter element for filtering oil smoke.

2. The oil fume filtering device according to claim 1, characterized in that: The conductive filter element comprises a porous filter substrate and a conductive material supported on the porous filter substrate.

3. The oil fume filtering device according to claim 2, characterized in that: The conductive material includes: one or more of an adsorbent, an oleophilic filler, and an antibacterial agent.

4. The oil fume filtering device according to claim 3, characterized in that: The adsorbent includes activated carbon.

5. The oil fume filtering device according to claim 4, characterized in that: The activated carbon includes one or more of coconut shell activated carbon, wood activated carbon, coal activated carbon; and / or The iodine adsorption value of the activated carbon is between 700 and 1200; and / or The mass ratio of the activated carbon to the porous filter substrate is in the range of 50% to 80%.

6. The oil fume filtering device according to claim 3, characterized in that: The oleophilic filler comprises oleophilic micron-sized metal oxide.

7. The oil fume filtering device according to claim 6, characterized in that: The metal oxide comprises one or more of zinc oxide, iron oxide and copper oxide; and / or The mass ratio of the oleophilic filler to the porous filtering substrate is in the range of 0.5% to 8%.

8. The oil fume filtering device according to claim 3, characterized in that: The antibacterial agent comprises one or more of nano zinc oxide, nano silver oxide, and nano copper oxide; and / or The mass ratio of the antimicrobial agent to the porous filter substrate is in the range of 0.5% to 2%.

9. The oil fume filtering device according to claim 3, characterized in that: The mass ratio of the total mass of the oleophilic filler and the antibacterial agent to the mass of the porous filter substrate is in a range of 1% to 10%.

10. The oil fume filtering device according to any one of claims 3 to 9, characterized in that: The porous filtering substrate is a foam sponge; The PPI index of the foamed sponge is in the range of 40 PPI to 60 PPI; and / or The thickness of the foamed sponge is in the range of 3 mm to 8 mm.

11. The oil fume filtering device according to claim 10, characterized in that: The foam sponge is a polyurethane foam sponge; and / or The oleophilic filler and the antibacterial agent are configured to be loaded on the porous filter substrate during the foaming process; and the adsorbent is configured to be loaded on the porous filter substrate after the foaming is completed.

12. The oil fume filtering device according to any one of claims 1 to 9, characterized in that: The frame is provided with side panels and grille bars, the grille bars are located on the inner side of the side panels, and the height of the side panels along the airflow direction is greater than the height of the grille bars along the airflow direction, the conductive filter element is fixed to the side panels, and the discharge electrode is fixed to the grille bars.

13. The oil fume filtering device according to claim 12, characterized in that: The discharge electrode comprises a base and a discharge portion, wherein the base is embedded in the grid bar, and the discharge portion is arranged at one end of the base facing the counter electrode and protrudes from the grid bar.

14. The oil fume filtering device according to any one of claims 1 to 9, characterized in that: The discharge electrode comprises a discharge portion, and the discharge portion comprises one or more of a discharge sawtooth, a discharge needle, and a discharge fiber; and / or The voltage of the discharge electrode is in the range of -10 kV to -2 kV; and / or The number of the discharge electrode is at least one; and / or The material of the discharge electrode is metal or carbon fiber.

15. A fume treatment device, characterized in that: include: A casing, wherein the casing is provided with an air duct; and The oil fume filtering device according to any one of claims 1 to 14 is mounted on the housing and configured to filter the oil fume flowing through the air duct.

16. The oil fume treatment equipment according to claim 15, characterized in that: Also includes: A first detection device, configured to detect the concentration of oil smoke flowing through the discharge assembly; The second detection device is configured to detect the working parameters of the discharge component.

17. A control method, characterized in that: For the oil fume treatment device according to claim 15 or 16, the control method comprises: Turning on the discharge assembly; Determine whether the reminder condition for replacing the conductive filter element is met; Based on the determination that the reminder condition for replacing the conductive filter element is met, a reminder message for replacing the conductive filter element is issued.

18. The control method according to claim 17, characterized in that: The determining whether the reminder condition for replacing the conductive filter element is met includes: Obtaining operating parameters of the discharge component; Determining whether the conductive filter element needs to be replaced according to the working parameters of the discharge assembly; Based on the operating parameter of the discharge component exceeding the corresponding set operating parameter range, determining that the reminder condition for replacing the conductive filter element is met; Based on the fact that the operating parameter of the discharge component does not exceed the corresponding set operating parameter range, it is determined that the reminder condition for replacing the conductive filter element is not met.

19. The control method according to claim 18, characterized in that: The operating parameters include operating current and / or power.

20. The control method according to any one of claims 17 to 19, characterized in that: Also includes: Obtaining the concentration of oil smoke flowing through the discharge component; Based on the fact that the oil smoke concentration exceeds a set oil smoke concentration range, the step of starting the discharge component is performed.

21. A control device, characterized in that: The system comprises a processor and a memory storing a computer program, wherein when the processor executes the computer program, the steps of the control method according to any one of claims 17 to 20 are implemented.

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