An oil fume treatment device and a control method

Abstract

The present application relates to the technical field of household appliances, and in particular to a cooking fume treatment device and a control method. The cooking fume treatment device provided by the present application comprises a cooking fume separation system and an environment state detection mechanism. The environment state detection mechanism is used for detecting environment state information of an environment. A fan assembly and the cooking fume separation system can adjust their working states according to the environment state information detected by the environment state detection mechanism, so as to adaptively balance the air pressure of the environment. The cooking fume treatment device can adaptively balance the air pressure of the environment when operating under different working conditions, so as to balance the air inside the kitchen which is discharged due to the cooking fume and heat generated during the cooking process, ensure the health and work efficiency of the kitchen staff, and ensure the normal operation of the kitchen equipment. The control method can dynamically adjust the working state of the fan assembly and the working state of the cooking fume separation system according to the environment state information, so as to adaptively balance the air pressure of the environment.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and in particular to an oil fume treatment device and control method. Background Technology

[0002] Range hoods have become an indispensable kitchen appliance in modern homes. Their primary function is to remove cooking fumes during cooking, thus maintaining a clean kitchen environment. Existing range hoods include a fan assembly and a smoke collection system, which is located below and connected to the fan assembly. When in use, the fan assembly operates, creating a negative pressure zone above the stove, drawing in cooking fumes from the room. The fumes are then exhausted outdoors through ductwork.

[0003] In modern kitchen design, the make-up air system is a key component in ensuring indoor air quality and environmental comfort. Its function is to provide fresh air to the kitchen to balance the air exhausted due to cooking fumes and heat. However, in existing range hoods, the fan components and the make-up air system operate independently, making it impossible to achieve adaptive balance of ambient air pressure under different operating conditions.

[0004] Therefore, there is an urgent need to design a new fume treatment device and control method to improve the problem that fume treatment devices cannot achieve adaptive balance of ambient air pressure under different operating conditions. Summary of the Invention

[0005] The purpose of this invention is to provide an oil fume treatment device that can achieve adaptive balance of ambient air pressure when the oil fume treatment device is operating under different working conditions.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] An oil fume treatment device includes a duct assembly and a fan assembly disposed downstream therefrom. The duct assembly has an air outlet. The oil fume treatment device further includes:

[0008] The oil fume separation system is installed inside the pipeline assembly. The oil fume separation system has an oil fume inlet, an air outlet, and an oil fume exhaust end arranged along the flow direction of the oil fumes. The air outlet is connected to the air outlet, and the oil fume exhaust end is connected to the fan assembly.

[0009] The environmental condition monitoring unit is configured to monitor the environmental condition information of the environment. The fan components and oil fume separation system can adjust their own working status according to the environmental condition information detected by the environmental condition monitoring unit.

[0010] As an optional solution, environmental condition monitoring agencies include:

[0011] The oil fume concentration detection agency is configured to detect the physical properties of oil fumes. 检测 ; and / or

[0012] The air pressure testing agency is configured to detect the ambient air pressure information of the environment.

[0013] As an alternative, the oil fume separation system includes an auxiliary fan arranged along the flow direction of the oil fumes and an oil fume filtration mechanism. The auxiliary fan has an oil fume inlet, and the oil fume filtration mechanism has an air inlet, an air outlet, and an oil fume exhaust end. The air inlet is located downstream of the auxiliary fan and is connected to the air outlet.

[0014] As an alternative, the fume filtration mechanism is a conical cyclone tube, with the cross-sectional area of ​​the conical cyclone tube gradually increasing along the flow direction of the fume.

[0015] As an optional solution, the distance between the auxiliary fan and the fume filtration mechanism is adjustable.

[0016] As an optional solution, the piping components include:

[0017] The piping assembly body is connected to the fan assembly;

[0018] The baffle assembly is installed inside the pipe assembly body. The baffle assembly divides the interior of the pipe assembly body into at least two channels, and each channel is equipped with a corresponding set of oil fume separation systems.

[0019] The purpose of this invention is to provide a control method that enables adaptive balance of ambient air pressure when the fume treatment device operates under different conditions.

[0020] To achieve this objective, the present invention adopts the following technical solution:

[0021] A control method is applied to the above-mentioned fume treatment device, the control method comprising:

[0022] Obtain environmental status information;

[0023] Based on environmental condition information, the operating status of the fan components and the oil fume separation system are dynamically adjusted to achieve adaptive balance of ambient air pressure.

[0024] As an optional solution, environmental status information includes the first physical property information of the oil fume. 检测1 And the first ambient air pressure information; based on the environmental condition information, the steps for dynamically adjusting the working status of the fan components and the oil fume separation system include:

[0025] According to the first oil fume physical property information J 检测1 Control the operating status of the fan components;

[0026] Adjust the operating mode of the oil fume separation system based on the ambient air pressure information.

[0027] As an optional solution, the piping assembly includes a piping assembly body and a baffle assembly disposed therein. The baffle assembly divides the interior of the piping assembly body into at least two channels, and each channel is provided with a set of oil fume separation systems that correspond to each other. The oil fume separation system includes an auxiliary fan arranged along the flow direction of the oil fumes and an oil fume filtration mechanism.

[0028] The steps for adjusting the operating mode of the oil fume separation system based on the initial ambient air pressure information include:

[0029] Obtain the second oil fume physical property information in each channel J 检测2 ;

[0030] Based on the second oil fume physical property information J in each channel 检测2 At least two channels are divided into main smoke inlet channels or auxiliary smoke inlet channels;

[0031] Control the auxiliary fan in the main smoke inlet duct to the second auxiliary speed V 辅助2 Running and in the first position L1, controlling the auxiliary fan in the auxiliary smoke inlet duct to operate at the third auxiliary speed V 辅助3 Running and in the second position L2, where V 辅助2 <V 辅助3 L1 > L2.

[0032] As an optional solution, after adjusting the operating mode of the oil fume separation system based on the first ambient air pressure information, the following steps are also included:

[0033] Obtain the third oil fume physical property information of the oil fume treatment device J 检测3 ;

[0034] Determine the physical properties of the third type of oil fume J 检测3 Does the second preset condition meet? If not, control the fan assembly to reduce its speed and control the auxiliary fan to increase its speed.

[0035] As an alternative solution, the third oil fume physical property information J 检测3 The ratio of the gas flow rate Q1 at the outlet to the gas flow rate Q2 at the inlet of the fume treatment device; the second preset condition is: judging the third fume physical property information J. 检测3 Is it greater than or equal to the preset value J4 of the fourth oil fume physical property information?

[0036] As an optional solution, the steps of controlling the fan assembly to operate at a reduced speed and controlling the auxiliary fan to operate at a higher speed also include:

[0037] Obtain secondary ambient pressure information;

[0038] Determine whether the second ambient air pressure information meets the third preset condition: if not, control the auxiliary fan to increase its speed until the second ambient air pressure information meets the third preset condition.

[0039] The beneficial effects of this invention are:

[0040] The oil fume treatment device provided by this invention includes a pipeline assembly, a fan assembly, an oil fume separation system, and an environmental status detection mechanism. The fan assembly is located downstream of the pipeline assembly, and an air outlet is provided on the pipeline assembly. The oil fume separation system is located inside the pipeline assembly and has an oil fume inlet, an air outlet, and an oil fume discharge end arranged along the flow direction of the oil fumes. The air outlet is connected to the air outlet, and the oil fume discharge end is connected to the fan assembly. The environmental status detection mechanism is used to detect environmental status information. The fan assembly and the oil fume separation system can adjust their own working status according to the environmental status information detected by the environmental status detection mechanism.

[0041] Among them, the fan assembly and the oil fume separation system can adjust their working status according to the environmental status information detected by the environmental status monitoring agency, so as to achieve adaptive balance of environmental air pressure. This enables the oil fume treatment device to achieve adaptive balance of environmental air pressure under different working conditions, ensuring that the oil fume separation system provides fresh air to the kitchen to balance the air discharged from the kitchen due to oil fumes and heat generated during cooking, ensuring the health and work efficiency of kitchen staff, and ensuring the normal operation of kitchen equipment.

[0042] The control method provided by this invention includes: acquiring environmental state information; dynamically adjusting the working state of the fan assembly and the working state of the oil fume separation system according to the environmental state information, so as to achieve adaptive balance of environmental air pressure. This enables the oil fume treatment device to achieve adaptive balance of environmental air pressure under different operating conditions, ensuring that the oil fume separation system provides fresh air to the kitchen to balance the air discharged from the kitchen due to oil fumes and heat generated during cooking, ensuring the health and work efficiency of kitchen staff, and ensuring the normal operation of kitchen equipment. Attached Figure Description

[0043] Figure 1 This is a structural schematic diagram of the fume treatment device, wall, ceiling, and cooking area provided in Embodiment 1 of the present invention;

[0044] Figure 2 This is a schematic diagram of the oil fume treatment device provided in Embodiment 1 of the present invention;

[0045] Figure 3 This is a schematic diagram of the first internal structure of the fume treatment device provided in Embodiment 1 of the present invention;

[0046] Figure 4 This is a schematic diagram of the pipeline assembly and oil fume separation system provided in Embodiment 1 of the present invention;

[0047] Figure 5 This is a schematic diagram of the second internal structure of the fume treatment device provided in Embodiment 1 of the present invention;

[0048] Figure 6 This is a cross-sectional view of the pipeline assembly and oil fume separation system provided in Embodiment 1 of the present invention;

[0049] Figure 7 This is a schematic diagram of the pipeline assembly provided in Embodiment 1 of the present invention;

[0050] Figure 8 This is a flowchart of the control method provided in Embodiment 2 of the present invention;

[0051] Figure 9 This is a flowchart of the control method provided in Embodiment 3 of the present invention;

[0052] Figure 10 This is a flowchart of the control method provided in Embodiment 4 of the present invention;

[0053] Figure 11 This is a flowchart of the control method provided in Embodiment 5 of the present invention;

[0054] Figure 12 This is a flowchart of the control method provided in Embodiment Six of the present invention.

[0055] In the picture:

[0056] 100. Fume treatment device; 200. Wall; 300. Ceiling; 400. Cooking area;

[0057] 10. Smoke collection system; 11. Smoke collection chamber; 111. Smoke inlet; 12. Flip plate;

[0058] 20. Fan assembly; 21. Chassis body; 22. Main fan;

[0059] 30. Piping assembly; 31. Piping assembly body; 311. Channel; 312. Air outlet; 32. Baffle assembly; 321. Baffle; 33. Air outlet duct;

[0060] 40. Oil fume separation system; 41. Auxiliary fan; 411. Oil fume inlet; 42. Oil fume filtration mechanism; 421. Air inlet; 422. Air outlet; 423. Oil fume exhaust end. Detailed Implementation

[0061] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present invention are shown in the accompanying drawings, not all of them.

[0062] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0063] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0064] In the description of the embodiments disclosed herein, terms such as "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0065] Example 1

[0066] like Figure 1 As shown, this disclosure provides an oil fume treatment device 100. The oil fume treatment device 100 can be any type of device with oil fume treatment function, such as a top-mounted range hood, a side-suction range hood, or a top-suction range hood. All types of devices with oil fume treatment function are within the protection scope of this disclosure. This disclosure takes a top-mounted range hood as an example to describe the structure of the oil fume treatment device 100.

[0067] like Figures 1-3As shown, the fume treatment device 100 includes a fan assembly 20, a fume collection system 10, and a pipe assembly 30. The fan assembly 20 includes a main casing 21. One end of the pipe assembly 30 is connected to the main casing 21, and the other end of the pipe assembly 30 is connected to the fume collection system 10. Figure 1 and Figure 2 As shown, the fan assembly 20 also includes a main fan 22, which is located inside the main body 21 of the casing. The main fan 22 can generate negative pressure, which allows the oil fumes from the cooking area 400 to pass through the smoke collection system 10, the pipe assembly 30 and the main body 21 of the casing in sequence before being discharged outdoors.

[0068] like Figure 1 As shown, the main body 21 of the enclosure is positioned above the ceiling 300, and is detachably connected to the ceiling wall 200. Because the enclosure 21 is positioned above the ceiling 300, at a distance from the user, the ceiling 300 effectively isolates the noise generated during operation, reducing its impact on the user and improving the user experience. When the height of the wall 200 varies, the length of the pipe assembly 30 can be adjusted to ensure the reliable operation of the fume treatment device 100.

[0069] like Figure 1 As shown, the smoke collection system 10 includes a smoke collection chamber 11 and a flap 12. The smoke collection chamber 11 has a smoke inlet 111, and the flap 12 is disposed on the smoke collection chamber 11. The flap 12 can switch between a first state with the smoke inlet 111 open and a second state with the smoke inlet 111 closed.

[0070] In modern kitchen design, a make-up air system is a crucial component for ensuring indoor air quality and environmental comfort. Its role is to provide fresh air to the kitchen to balance the air exhausted due to cooking fumes and heat. The lack of a make-up air system can lead to a series of negative consequences, including decreased air quality, negative pressure issues, difficulty in temperature and humidity control, increased safety risks, and reduced system efficiency. These problems not only affect the health and productivity of kitchen staff but may also threaten the normal operation and safe use of kitchen equipment.

[0071] The existing make-up air system and fume treatment device are set up independently. The overall structure formed by the make-up air system and fume treatment device is complex, large in size and occupies a lot of space, which is not conducive to the rational use of kitchen space.

[0072] To solve the above problems, such as Figures 2-5As shown, the oil fume treatment device 100 in this embodiment of the present disclosure has an air outlet 312 on the pipeline assembly 30. The oil fume treatment device 100 also includes an oil fume separation system 40, which is disposed inside the pipeline assembly 30. The oil fume separation system 40 has an oil fume inlet 411, an air outlet 422 and an oil fume discharge end 423 arranged along the flow direction of the oil fume. The air outlet 422 is connected to the air outlet 312, and the oil fume discharge end 423 is connected to the fan assembly 20. The fumes entering through the smoke inlet 111 and the oil fume inlet 411 are separated into clean air and oil fume mixture by the oil fume separation system 40. The oil fume mixture enters the fan assembly 20 through the oil fume exhaust end 423. The separated clean air is discharged into the kitchen through the air outlet 422 and the air outlet 312, thereby providing fresh air into the kitchen to balance the air discharged from the kitchen due to the fumes and heat generated during cooking, ensuring the health and work efficiency of kitchen staff, and ensuring the normal operation of kitchen equipment.

[0073] In addition, the fume treatment device also includes an environmental status detection mechanism, which is used to detect environmental status information. The fan assembly 20 and the fume separation system 40 can adjust their own working status according to the environmental status information detected by the environmental status detection mechanism, so as to achieve adaptive balance of environmental air pressure. This enables the fume treatment device 100 to achieve adaptive balance of environmental air pressure under different working conditions, and ensures that the fume separation system 40 provides fresh air to the kitchen to balance the air discharged from the kitchen due to the fumes and heat generated during cooking, thus ensuring the health and work efficiency of kitchen staff and the normal operation of kitchen equipment.

[0074] Among them, the environmental condition monitoring agency may include an oil fume concentration monitoring agency, which is used to detect the physical properties of oil fumes. 检测 Among them, the physical properties information of oily fumes J 检测 This can include information such as oil fume concentration, oil fume flow rate, and oil fume temperature, as well as all the physical properties of the oil fumes that can reflect the oil fume situation. 检测 All of these are within the protection scope of the embodiments disclosed herein.

[0075] The environmental condition monitoring agency may also include an air pressure monitoring agency, which is used to monitor the environmental air pressure information. The environmental air pressure information may include environmental air pressure values, environmental air pressure change values, etc. All information that can reflect the environmental air pressure situation is within the protection scope of this disclosure embodiment.

[0076] like Figures 2-5As shown, the distance between the fan assembly 20 and the smoke collection system 10 is relatively far, the length of the pipe assembly 30 is relatively long, and there is a large amount of unused space inside the pipe assembly 30. The oil fume treatment device 100 of this embodiment sets the oil fume separation system 40 in the pipe assembly 30, which can make reasonable use of the internal space of the pipe assembly 30 to add the oil fume separation system 40, so as to realize the replenishment of air inside the kitchen. There is no need to add an additional replenishment air system outside the oil fume treatment device 100, and no waste of extra space will be caused.

[0077] In summary, the oil fume treatment device 100 with air replenishment function of this disclosure has a simple overall structure, small size and small space occupation, which can realize the rational use of kitchen space and effectively improve the user experience.

[0078] Specifically, such as Figures 2-5 As shown, the oil fume separation system 40 of this embodiment includes an auxiliary fan 41 and an oil fume filtration mechanism 42 arranged along the flow direction of the oil fumes. The auxiliary fan 41 has an oil fume inlet 411, and the oil fume filtration mechanism 42 has an air inlet 421, an air outlet 422, and an oil fume discharge end 423. The air inlet 421 is located downstream of the auxiliary fan 41 and is connected to the air outlet 422. The oil fumes entering from the smoke inlet 111 and the oil fume inlet 411 undergo preliminary separation under the centrifugal force of the auxiliary fan 41. Due to the different densities of the air and oil fume mixture, such as... Figure 4 As shown, the centrifugal force of the auxiliary fan 41 separates the oil fumes into air nuclei M and an airflow N of the oil fume mixture. The air nuclei M are located in the central region, while the airflow N surrounds the air nuclei M. The air nuclei M pass sequentially through the air inlet 421, air outlet 422, and air outlet 312, thus being discharged into the kitchen. The airflow N of the oil fume mixture moves along the outer periphery of the oil fume filtration mechanism 42, and finally flows into the fan assembly 20 at the oil fume discharge end 423 for final oil fume separation. Through the combination of the auxiliary fan 41 and the oil fume filtration mechanism 42, a good separation effect for oil fumes can be achieved, resulting in a large amount of clean air. The oil fume treatment device 100 can provide a large amount of fresh air into the kitchen to balance the air discharged from the kitchen due to the oil fumes and heat generated during cooking, ensuring the health and work efficiency of kitchen staff and the normal operation of kitchen equipment. In addition, by setting up the auxiliary fan 41, the oil fume treatment device 100 can effectively improve the oil fume absorption effect, and can achieve a better absorption effect of oil fume by the oil fume treatment device 100.

[0079] In an optional embodiment, the oil fume separation system may also include only an oil fume filtration mechanism, which is simple in structure and occupies little space.

[0080] In an optional embodiment, the oil fume separation system can also be a cyclone separator, which can also achieve a good separation effect between the oil fume mixture and the air.

[0081] like Figures 2-5 As shown, the fume filtration mechanism 42 is a conical cyclone tube. The cross-sectional area of ​​the conical cyclone tube gradually increases along the flow direction of the fume. The conical cyclone tube is a type of variable diameter tube. The external shape of the conical cyclone tube is conical. By using this variable diameter tube, the smaller diameter end can generate a strong negative pressure. The smaller diameter end of the conical cyclone tube is used to draw in the air nucleus M, thereby forming a strong negative pressure area above the auxiliary fan 41. This negative pressure area has good suction capacity and can effectively and quickly draw in the air nucleus M that is in a collected state, thereby preventing the air nucleus M from spreading to the surroundings and enabling a large amount of clean gas to be discharged from the air outlet 312.

[0082] like Figure 4 As shown, the separated air nuclei M rise in a spiral shape, and the air nuclei M as a whole are conical. The cross-sectional area of ​​the cone gradually decreases along the flow direction of the oil fume. When the speed of the auxiliary fan 41 increases, the centrifugal force of the auxiliary fan 41 on the oil fume is greater, and the cross-sectional area of ​​the air nuclei M increases as a whole. Therefore, if the distance between the auxiliary fan 41 and the oil fume filter mechanism 42 is fixed, the cross-sectional area of ​​the air nuclei M at the air inlet 421 is greater than the cross-sectional area of ​​the air inlet 421. As a result, some clean air will not be able to enter the air inlet 421, resulting in a waste of clean air.

[0083] To solve the above problems, such as Figure 4 , Figure 5 and Figure 7 As shown, the distance between the auxiliary fan 41 and the fume filter mechanism 42 is adjustable. When the speed of the auxiliary fan 41 increases, the distance between the auxiliary fan 41 and the fume filter mechanism 42 can be increased, so that the cross-sectional area of ​​the newly formed air nucleus M at the air inlet 421 is equal to the cross-sectional area of ​​the air inlet 421, thereby maximizing the utilization rate of the formed clean air and achieving a better air replenishment effect of the fume treatment device 100 on the kitchen.

[0084] like Figures 4-6As shown, the duct assembly 30 includes a duct assembly body 31 and a baffle assembly 32. One end of the duct assembly body 31 is connected to the fan assembly 20, and the other end of the duct assembly body 31 is connected to the smoke collection system 10. The baffle assembly 32 is disposed inside the duct assembly body 31 and divides the interior of the duct assembly body 31 into at least two channels 311. Each channel 311 is provided with a corresponding set of oil fume separation systems 40. Each set of oil fume separation systems 40 can independently control the corresponding channel 311. The oil fume treatment device 100 can adjust the working state of each set of oil fume separation systems 40 according to the oil fume situation inside the kitchen, so that the oil fume treatment device 100 can match different oil fume situations and ensure that the oil fume treatment device 100 always has a good absorption effect on different oil fume situations.

[0085] For example, such as Figure 3 , Figure 5 and Figure 6 As shown, the baffle assembly 32 includes a plurality of baffles 321, which are spaced apart along the width direction of the pipeline assembly 30 to form a plurality of independent channels 311.

[0086] like Figure 6 As shown, the minimum distance between the outer peripheral surface of the auxiliary fan 41 and the inner wall of the channel 311 is 3mm to 5mm. On the one hand, this avoids interference between the auxiliary fan 41 and the inner wall of the channel 311 during operation, ensuring the normal operation of the auxiliary fan 41. On the other hand, the appropriate minimum distance prevents leakage and backflow of oil fumes in the channel 311. The small space of the channel 311 results in a more concentrated negative pressure, enabling the channel 311 to achieve a better absorption effect on oil fumes.

[0087] like Figure 6 As shown, the cross-section of the channel 311 is square. The center line of the channel 311, the first axis of the auxiliary fan 41, and the second axis of the fume filtration mechanism 42 are arranged coaxially. This structural design can avoid the waste of internal space of the pipeline assembly body 31 and achieve the maximum utilization rate of internal space of the pipeline assembly body 31.

[0088] like Figure 6 As shown, if the auxiliary fans 41 in two adjacent channels 311 rotate in the same direction, the fumes in the two channels 311 will collide at the connection point of the fume outlets of the two adjacent channels 311. On the one hand, this reduces the exhaust speed of the fumes and affects the smooth flow of the fumes to the fan assembly 20; on the other hand, it will also generate a lot of noise.

[0089] To solve the above problems, such as Figure 6As shown, the auxiliary fans 41 in the two adjacent channels 311 rotate in opposite directions. Therefore, there will be no collision of oil fumes in the two channels 311 at the connection position of the oil fume outlets of the two adjacent channels 311. The oil fume mixing degree at the connection position of the oil fume outlets of the two channels 311 is better, and the oil fume discharge speed is faster. This ensures that the oil fume always flows smoothly towards the fan assembly 20, avoids excessive noise generated by the oil fume treatment device 100 during use, and achieves the effect of quiet operation of the oil fume treatment device 100.

[0090] like Figure 6 and Figure 7 As shown, the piping assembly 30 also includes an air outlet duct 33, which is connected to the air outlet 422. The air outlet duct 33 enables the clean air flowing from the air outlet 422 to diffuse better into the kitchen room.

[0091] like Figure 6 and Figure 7 As shown, the cross-sectional area of ​​the air outlet duct 33 increases along the airflow direction, which further improves the diffusion of clean air flowing from the air outlet 422 into the kitchen room. For example, the cross-sectional shape of the air outlet duct 33 can be rectangular, circular, elliptical, etc., and all types of cross-sectional shapes of the air outlet duct 33 are within the protection scope of this disclosure.

[0092] Example 2

[0093] This disclosure provides a control method applied to the fume treatment device as disclosed in Embodiment 1. Figure 8 As shown, the control method includes:

[0094] S1: Obtain environmental status information;

[0095] S2: Based on environmental status information, dynamically adjust the working status of the fan components and the oil fume separation system to achieve adaptive balance of ambient air pressure.

[0096] This embodiment of the disclosure dynamically adjusts, for example, based on environmental state information. Figure 3 The working states of the fan assembly 20 and the oil fume separation system 40 shown are used to achieve adaptive balance of ambient air pressure. This enables the oil fume treatment device 100 to achieve adaptive balance of ambient air pressure under different operating conditions, ensuring that the oil fume separation system 40 provides fresh air to the kitchen to balance the air discharged from the kitchen due to oil fumes and heat generated during cooking, thus ensuring the health and work efficiency of kitchen staff and the normal operation of kitchen equipment.

[0097] For example, the environmental state information in this disclosure includes, but is not limited to, ambient air pressure information and the physical properties of cooking fumes. Ambient air pressure information includes, but is not limited to, ambient air pressure values, ambient air pressure changes, cooking fume temperature, cooking fume concentration, and cooking fume flow rate. All information that can directly or indirectly reflect the environmental state is within the protection scope of this disclosure. For example, the ambient air pressure change value can be the difference or ratio before and after the change in ambient air pressure. All parameters that can reflect changes in ambient air pressure are within the protection scope of this disclosure.

[0098] Example 3

[0099] like Figure 9 As shown, this disclosure provides a control method, which is a further refinement of the control method in Embodiment 2, wherein, as Figure 9 As shown, the control method includes:

[0100] S11: Obtain the first oil fume physical property information J 检测1 ;

[0101] S21: Based on the first oil fume physical property information J 检测1 Control the operating status of the fan components;

[0102] S12: Obtain the first ambient air pressure information;

[0103] S22: Adjust the working mode of the oil fume separation system based on the first ambient air pressure information.

[0104] In S21, based on the first oil fume physical property information J 检测1 To adjust the operating status of the fan assembly 20, it is possible to achieve, for example Figure 3 The illustrated fume treatment device 100 is designed to consistently achieve good absorption of fumes under various fume conditions. For example, the first fume physical property information J... 检测1 This can include parameters such as oil fume concentration, oil fume temperature, and oil fume flow rate; all parameters that can reflect the condition of oil fumes are included in the first oil fume physical property information J. 检测1 Within the scope of protection.

[0105] Furthermore, the fume treatment device 100 causes a significant change in ambient air pressure after step S21. Therefore, step S22 is performed after S21 to further achieve adaptive balance of ambient air pressure when the fume treatment device 100 operates under different conditions. This ensures that the fume separation system 40 provides fresh air to the kitchen to balance the air discharged from the kitchen due to the fumes and heat generated during cooking, thus ensuring the health and work efficiency of kitchen staff and the normal operation of kitchen equipment.

[0106] For example, in S22, the first ambient air pressure information can be the difference or ratio before and after the change in ambient air pressure. All parameters that can reflect changes in ambient air pressure are within the protection scope of this disclosure embodiment.

[0107] Example 4

[0108] like Figure 10 As shown, this disclosure provides a control method, which is a further refinement of the control method in Embodiment 3, wherein, as Figure 10 As shown, the control method includes:

[0109] S11: Obtain the first oil fume physical property information J 检测1 ;

[0110] S211: The first oil fume physical property information J 检测1 The values ​​are compared with the first preset value J1 and the second preset value J2 of the oil fume physical property information, respectively, where J1 < J2: if J 检测1 If J1 < J1, then proceed to S212'; if J1 ≤ J 检测1 If J2 < J2, then proceed to S212''; if J2 ≤ J 检测1 Then proceed with S212''';

[0111] S212': Control the fan assembly to operate at the first fan speed N1;

[0112] S12': Obtain the first ambient air pressure information;

[0113] S21': Adjust the working mode of the oil fume separation system based on the first ambient air pressure information;

[0114] S212'': Controls the fan assembly to operate at the second fan speed N2;

[0115] S12'': Obtain the first ambient air pressure information;

[0116] S212'': Adjust the working mode of the oil fume separation system based on the first ambient air pressure information;

[0117] S212''': Control the fan assembly to operate at the third fan speed N3, where N1 < N2 < N3;

[0118] S12''': Obtain the first ambient air pressure information;

[0119] S21''': Adjust the working mode of the oil fume separation system based on the first ambient air pressure information.

[0120] When J 检测1When the concentration of oil fumes is less than J1, the control fan assembly 20 operates at a lower first fan speed N1, which can achieve a better absorption effect of oil fumes with lower energy consumption.

[0121] When J1≤J 检测1 When the concentration of oil fumes is less than J2, the concentration of oil fumes is relatively moderate. By controlling the fan assembly 20 to operate at a moderate second fan speed N2, a good absorption effect on oil fumes of moderate concentration can be achieved.

[0122] When J2≤J 检测1 At this time, the concentration of oil fumes is relatively high. Controlling the fan assembly 20 to operate at the third fan speed N3, which has a higher rotation speed, can achieve a better absorption effect for oil fumes with a higher concentration.

[0123] Example 5

[0124] like Figure 11 As shown, this disclosure provides a control method, which is a further refinement of the control method in Embodiment 4, wherein, as Figure 11 As shown, the control method includes:

[0125] S11: Obtain the first oil fume physical property information J 检测1 ;

[0126] S211: The first oil fume physical property information J 检测1 The values ​​are compared with the first preset value J1 and the second preset value J2 of the oil fume physical property information, respectively, where J1 < J2: if J 检测1 If J1 < J1, then proceed to S212'; if J1 ≤ J 检测1 If J2 < J2, then proceed to S212''; if J2 ≤ J 检测1 Then proceed with S212''';

[0127] S212': Control the fan assembly to operate at the first fan speed N1;

[0128] S12': Obtain the first ambient air pressure change information △P1;

[0129] S221': Compare the first ambient air pressure change information △P1 with the first ambient air pressure change preset value △P 预设1 Comparison:

[0130] If △P1≥△P 预设1 Then proceed to S222';

[0131] If △P1<△P 预设1 If so, then return S212';

[0132] S222': Control the auxiliary fan to operate at the first auxiliary speed V 辅助1Run and be in position L1;

[0133] In S221', if △P1 < △P 预设1 If the change in ambient air pressure is not drastic enough, it means that even if the auxiliary fan 41 is not working, it can still meet the basic air pressure requirements of the environment. Therefore, we can return to the step of obtaining the first ambient air pressure change information △P1 and continue to detect and judge the first ambient air pressure change information △P1.

[0134] In S221', if △P1≥△P 预设1 This indicates that the ambient air pressure changes relatively drastically in this scenario, so further steps are needed in S222' to activate the auxiliary fan 41 and increase the exhaust of clean air. This is to balance the air exhausted from the kitchen due to the fumes and heat generated during cooking, in order to meet the basic air pressure requirements of the environment, ensure the health and work efficiency of kitchen staff, and ensure the normal operation of kitchen equipment.

[0135] In S222', in different usage scenarios of the fume treatment device 100, since the ambient air pressure drop is relatively low in such scenarios, the first auxiliary speed V can be controlled. 辅助1 Running, first auxiliary speed V 辅助1 Relatively small, through a relatively small first auxiliary speed V 辅助1 This can balance the air inside the kitchen that is exhausted due to the fumes and heat generated during cooking, so as to meet the basic air pressure requirements of the environment, ensure the health and work efficiency of kitchen staff, and ensure the normal operation of kitchen equipment.

[0136] like Figure 4 As shown, due to the first auxiliary speed V 辅助1 The auxiliary fan 41 has a relatively small centrifugal force on the oil fumes, resulting in a relatively small amount of fumes. Figure 4 The cross-section of the air nucleus M shown is relatively small. Therefore, when the auxiliary fan 41 is in a relatively high position, the first position L1, it is possible to ensure that all the separated air nuclei M enter the air inlet 421, thus avoiding the waste of clean air.

[0137] For example, the first auxiliary speed V 辅助1 It can be 600 r / min, when the auxiliary fan 41 is in the first position L1, such as Figure 1 , Figure 4 and Figure 5 As shown, the distance between the lowest point of the auxiliary fan 41 and the cooking area 400 is 400mm.

[0138] S31: Obtain the fourth oil fume physical property information of the cooking area J检测4 ;

[0139] S32: Determine the fourth oil fume physical property information J 检测4 Is it less than the preset value J5 of the fifth oil fume physical property information? If not, proceed to S33; if yes, return to S211.

[0140] S33: Control the oil fume treatment device 100 to shut down.

[0141] By using S31, S32, and S33, the fume treatment device 100 can be shut down when the fume concentration is sufficiently low, thus achieving a good energy-saving effect for the range hood.

[0142] S212'': Controls the fan assembly to operate at the second fan speed N2;

[0143] S12'': Obtain the first ambient air pressure change information △P1;

[0144] S221'': Combine the first ambient air pressure change information △P1 with the second ambient air pressure change preset value △P 预设2 Comparison:

[0145] If △P1<△P 预设2 If so, then return S212'';

[0146] In S221'', if △P1 < △P 预设2 If the change in ambient air pressure is not drastic enough, it means that even if the auxiliary fan 41 is not working, it can still meet the basic air pressure requirements of the environment. Therefore, we can return to the step of obtaining the first ambient air pressure change information △P1 and continue to detect and judge the first ambient air pressure change information △P1.

[0147] If △P1≥△P 预设2 Then proceed with S222'';

[0148] In S221'', if △P1≥△P 预设2 This indicates that the ambient air pressure changes relatively drastically in this scenario, so further steps S222'', S223'', and S224'' are needed to activate the auxiliary fan 41, increase the exhaust of clean air, and balance the air exhausted from the kitchen due to the fumes and heat generated during cooking. This ensures that the basic air pressure requirements of the environment are met, protects the health and work efficiency of kitchen staff, and guarantees the normal operation of kitchen equipment.

[0149] Specifically, S222'': Obtain the second oil fume physical property information J within each channel 311. 检测2 ;

[0150] S223'': Based on the second oil fume physical property information J in each channel 检测2 At least two channels are divided into main smoke inlet channels or auxiliary smoke inlet channels;

[0151] S224'': Controls the auxiliary fan in the main smoke inlet duct to operate at the second auxiliary speed V. 辅助2 Running and in the first position L1, controlling the auxiliary fan in the auxiliary smoke inlet duct to operate at the third auxiliary speed V 辅助3 Running and in the second position L2, where V 辅助1 <V 辅助2 <V 辅助3 L1 > L2;

[0152] When J1≤J 检测1 When the concentration of oil fumes is less than J2, the concentration is relatively moderate. Controlling the fan assembly 20 to operate at a moderate second fan speed N2 can achieve a good absorption effect on moderate concentrations of oil fumes. In this scenario, the ambient air pressure drop will be less than in the previous scenario (when J2 < ... 检测1 The ambient air pressure drops more drastically at <J1 time), so compared to when the first auxiliary speed V... 辅助1 The auxiliary fan 41 operates at the second auxiliary speed V. 辅助2 Or the third auxiliary speed V 辅助3 The system can generate more clean air to balance the air discharged from the kitchen due to cooking fumes and heat, thus meeting the basic air pressure requirements of the environment, ensuring the health and work efficiency of kitchen staff, and guaranteeing the normal operation of kitchen equipment.

[0153] In S223'', the second oil fume physical property information J can be... 检测2 The larger channel 311 is identified as the main smoke inlet channel. The main smoke inlet channel can handle a relatively large amount of oily fumes, but a relatively small amount of clean air. The second oily fume property information J can be used... 检测2 The smaller channel 311 is identified as the auxiliary smoke inlet channel. The auxiliary smoke inlet channel can pass through a relatively large amount of clean air, while it can pass through a relatively small amount of oily fumes. By setting up the main smoke inlet channel and the auxiliary smoke inlet channel, the air pressure adaptive balance of the environment can be achieved when the oily fume treatment device 100 is operating under different conditions.

[0154] Specifically, the second oil fume physical property information J 检测2 The parameters that can reflect the proportion of oil fume, such as oil fume temperature, oil fume concentration, and oil fume flow rate, are all included in the second oil fume physical property information. 检测2 Within the scope of protection.

[0155] S223'' is based on the second oil fume physical property information J in each channel 311 检测2At least two channels 311 are divided into a main smoke inlet channel or an auxiliary smoke inlet channel. Specifically, the second oil fume physical property information J is used to divide the smoke inlet channel into a main smoke inlet channel or an auxiliary smoke inlet channel. 检测2 Compare with the preset value J3 of the third oil fume property information: If J 检测2 If J ≥ J3, it indicates that the oil fume concentration inside channel 311 is relatively high, and channel 311 can be set as the main smoke inlet channel, which mainly handles oil fumes; if J 检测2 If the value is <J3, it indicates that the concentration of oil fumes inside channel 311 is relatively low. Channel 311 can be set as an auxiliary smoke inlet channel, which mainly uses clean air.

[0156] In S224'', the auxiliary fan 41 in the main smoke inlet duct is controlled to operate at the second auxiliary speed V. 辅助2 The auxiliary fan 41 in the auxiliary smoke inlet duct is operated and controlled to operate at the third auxiliary speed V. 辅助3 Run, where V 辅助2 <V 辅助3 The auxiliary fan 41 in the auxiliary smoke inlet duct exerts a greater centrifugal force on the fumes, generating more clean air, thus ensuring a higher volume of clean air passes through the auxiliary smoke inlet duct. Conversely, the auxiliary fan 41 in the main smoke inlet duct exerts a relatively smaller centrifugal force on the fumes, generating less clean air, resulting in a higher volume of fumes passing through the main smoke inlet duct. Adjusting the speed of the auxiliary fan 41 allows for rapid switching between the main and auxiliary smoke inlet ducts of duct 311.

[0157] like Figure 4 As shown, the separated air nuclei M rise in a spiral shape, and the air nuclei M as a whole are conical. The cross-sectional area of ​​the cone gradually decreases along the flow direction of the oil fume. When the speed of the auxiliary fan 41 increases, the centrifugal force of the auxiliary fan 41 on the oil fume is greater, and the cross-sectional area of ​​the air nuclei M increases as a whole. Therefore, if the distance between the auxiliary fan 41 and the oil fume filter mechanism 42 is fixed, the cross-sectional area of ​​the air nuclei M at the air inlet 421 is greater than the cross-sectional area of ​​the air inlet 421. As a result, some clean air will not be able to enter the air inlet 421, resulting in a waste of clean air.

[0158] Therefore, in S224'', due to the third auxiliary speed V 辅助3 Compared to the second auxiliary speed V 辅助2 Since the air nucleus M formed in the auxiliary smoke inlet channel is larger than that in the main smoke inlet channel, the auxiliary fan 41 in the auxiliary smoke inlet channel needs to be adjusted to a position farther away from the air inlet 421. Therefore, the auxiliary fan 41 in the main smoke inlet channel is controlled to the first position L1, and the auxiliary fan 41 in the auxiliary smoke inlet channel is controlled to the second position L2, where L1 > L2. This ensures that the air nucleus M formed in the auxiliary smoke inlet channel can completely enter the corresponding air inlet 421.

[0159] For example, the second auxiliary speed V 辅助2 It can be 1200 r / min; the third auxiliary speed V 辅助3 It can be 1400 r / min; when the auxiliary fan 41 is in the first position L1, such as Figure 1 , Figure 4 and Figure 5 As shown, the distance between the lowest point of the auxiliary fan 41 and the cooking area 400 is 400mm; when the auxiliary fan 41 is in the second position L2, as... Figure 1 and Figure 4 As shown, the distance between the lowest point of the auxiliary fan 41 and the cooking area 400 is 300mm.

[0160] S212''': Control the fan assembly to operate at the third fan speed N3, where N1 < N2 < N3;

[0161] S212''': Obtain the first ambient air pressure change information △P1;

[0162] S221''': Combine the first ambient air pressure change information △P1 with the third ambient air pressure change preset value △P 预设3 Comparison:

[0163] If △P1<△P 预设3 If so, then return S212''';

[0164] In S221''', if △P1 < △P 预设3 If the change in ambient air pressure is not drastic enough, it means that even if the auxiliary fan 41 is not working, it can still meet the basic air pressure requirements of the environment. Therefore, we can return to the step of obtaining the first ambient air pressure change information △P1 and continue to detect and judge the first ambient air pressure change information △P1.

[0165] If △P1≥△P 预设3 Then proceed with S222'';

[0166] In S221''', if △P1≥△P 预设3 This indicates that the ambient air pressure changes relatively drastically in this scenario, so further steps S222''', S223''', and S224''' are needed to activate the auxiliary fan 41, increase the exhaust of clean air, and balance the air exhausted from the kitchen due to the fumes and heat generated during cooking. This ensures that the basic air pressure requirements of the environment are met, protects the health and work efficiency of kitchen staff, and guarantees the normal operation of kitchen equipment.

[0167] Specifically, S222''': Obtain the second oil fume physical property information J in each channel. 检测2 ;

[0168] S223''': Based on the second oil fume physical property information J in each channel 检测2 At least two channels 311 are divided into main smoke inlet channels or auxiliary smoke inlet channels;

[0169] S224''': Controls the auxiliary fan 41 in the main smoke inlet duct to operate at the fourth auxiliary speed V. 辅助4 Running and in the first position L1, the auxiliary fan 41 in the auxiliary smoke inlet duct is controlled to operate at the fifth auxiliary speed V. 辅助5 Running and in the second position L2, where V 辅助3 <V 辅助4 <V 辅助5 L1 > L2;

[0170] When J2≤J 检测1 At this time, the concentration of oil fumes is relatively high. Controlling the fan assembly 20 to operate at the higher speed of the third fan N3 can achieve a better absorption effect for the higher concentration of oil fumes. In this scenario, the ambient air pressure drop will be greater than in the previous scenario (when J1≤J). 检测1 The ambient air pressure drops more drastically at <J2 time), so the auxiliary fan 41 operates at the fourth auxiliary speed V. 辅助4 Or the fifth auxiliary speed V 辅助5 Compared to the third auxiliary speed V 辅助3 It can generate more clean air to balance the air inside the kitchen that is exhausted due to the fumes and heat generated during cooking, so as to meet the basic air pressure requirements of the environment, ensure the health and work efficiency of kitchen staff, and ensure the normal operation of kitchen equipment.

[0171] In S223''', the second oil fume physical property information J can be... 检测2 The larger channel 311 is identified as the main smoke inlet channel. The main smoke inlet channel can handle a relatively large amount of oily fumes, but a relatively small amount of clean air. The second oily fume property information J can be used... 检测2 The smaller channel 311 is identified as the auxiliary smoke inlet channel. The auxiliary smoke inlet channel can pass through a relatively large amount of clean air, while it can pass through a relatively small amount of oily fumes. By setting up the main smoke inlet channel and the auxiliary smoke inlet channel, the air pressure adaptive balance of the environment can be achieved when the oily fume treatment device 100 is operating under different conditions.

[0172] Specifically, the second oil fume physical property information J 检测2 The parameters that can reflect the proportion of oil fume, such as oil fume temperature, oil fume concentration, and oil fume flow rate, are all included in the second oil fume physical property information.检测2 Within the scope of protection.

[0173] S223''' is based on the second oil fume physical property information J in each channel 311 检测2 At least two channels 311 are divided into a main smoke inlet channel or an auxiliary smoke inlet channel. Specifically, the second oil fume physical property information J is used to divide the smoke inlet channel into a main smoke inlet channel or an auxiliary smoke inlet channel. 检测2 Compare with the preset value J4 of the fourth oil fume property information: If J 检测2 If J ≥ J4, it indicates that the concentration of oil fumes inside channel 311 is relatively high, and channel 311 can be set as the main smoke inlet channel, which mainly handles oil fumes; if J 检测2 If the value is <J4, it indicates that the concentration of oil fumes inside channel 311 is relatively low. Channel 311 can be set as an auxiliary smoke inlet channel, which mainly uses clean air.

[0174] In S224''', the auxiliary fan 41 in the main smoke inlet duct is controlled to operate at the fourth auxiliary speed V. 辅助4 The auxiliary fan 41 in the auxiliary smoke inlet duct is operated and controlled at the fifth auxiliary speed V. 辅助5 Run, where V 辅助4 <V 辅助5 The auxiliary fan 41 in the auxiliary smoke inlet duct exerts a greater centrifugal force on the fumes, generating more clean air, thus ensuring a higher volume of clean air passes through the auxiliary smoke inlet duct. Conversely, the auxiliary fan 41 in the main smoke inlet duct exerts a relatively smaller centrifugal force on the fumes, generating less clean air, resulting in a higher volume of fumes passing through the main smoke inlet duct. Adjusting the speed of the auxiliary fan 41 allows for rapid switching between the main and auxiliary smoke inlet ducts of duct 311.

[0175] like Figure 4 As shown, the separated air nuclei M rise in a spiral shape, and the air nuclei M as a whole are conical. The cross-sectional area of ​​the cone gradually decreases along the flow direction of the oil fume. When the speed of the auxiliary fan 41 increases, the centrifugal force of the auxiliary fan 41 on the oil fume is greater, and the cross-sectional area of ​​the air nuclei M increases as a whole. Therefore, if the distance between the auxiliary fan 41 and the oil fume filter mechanism 42 is fixed, the cross-sectional area of ​​the air nuclei M at the air inlet 421 is greater than the cross-sectional area of ​​the air inlet 421. As a result, some clean air will not be able to enter the air inlet 421, resulting in a waste of clean air.

[0176] Therefore, in S224''', due to the third auxiliary speed V 辅助3 Compared to the second auxiliary speed V 辅助2Since the air nucleus M formed in the auxiliary smoke inlet channel is larger than that in the main smoke inlet channel, the auxiliary fan 41 in the auxiliary smoke inlet channel needs to be adjusted to a position farther away from the air inlet 421. Therefore, the auxiliary fan 41 in the main smoke inlet channel is controlled to the first position L1, and the auxiliary fan 41 in the auxiliary smoke inlet channel is controlled to the second position L2, where L1 > L2. This ensures that the air nucleus M formed in the auxiliary smoke inlet channel can completely enter the corresponding air inlet 421.

[0177] For example, the fourth auxiliary speed V 辅助4 It can be 1600 r / min; the fifth auxiliary speed V 辅助5 It can be 1800 r / min; when the auxiliary fan 41 is in the first position L1, such as Figure 1 , Figure 4 and Figure 5 As shown, the distance between the lowest point of the auxiliary fan 41 and the cooking area 400 is 400mm; when the auxiliary fan 41 is in the second position L2, as... Figure 1 and Figure 4 As shown, the distance between the lowest point of the auxiliary fan 41 and the cooking area 400 is 300mm.

[0178] Example 6

[0179] like Figure 12 As shown, this disclosure provides a control method, which is a further refinement of the control method in Embodiment 5, wherein, as Figure 12 As shown, after S222' and S224'', the following is also included: S31: Obtain the fourth oil fume physical property information J from the cooking area. 检测4 ;

[0180] S32: Determine the fourth oil fume physical property information J 检测4 Is it less than the preset value J5 of the fifth oil fume physical property information? If not, proceed to S33; if yes, return to S211.

[0181] S33: Control the oil fume treatment device 100 to shut down.

[0182] By using S31, S32, and S33, the fume treatment device 100 can be shut down when the fume concentration is sufficiently low, thus achieving a good energy-saving effect for the range hood.

[0183] Following S224''' are also:

[0184] S23: Obtain third-party oil fume physical property information from the oil fume treatment device. 检测3 ;

[0185] S241: Determine the physical properties of the third type of oil fume J检测3 Does the second preset condition meet? If yes, proceed to S31; if no, proceed to S242.

[0186] S242: Controls the fan assembly to reduce its speed and controls the auxiliary fan to increase its speed.

[0187] When the third oil fume physical property information J 检测3 If the second preset condition is not met, it indicates that the amount of clean air supplied by the oil fume separation system 40 to the environment is insufficient. Therefore, it is necessary to increase the amount of clean air discharged. Thus, the fan assembly 20 is controlled to reduce its speed to reduce the consumption of air in the environment. At the same time, the auxiliary fan 41 is controlled to increase its speed to increase the amount of clean air generated by the oil fume separation system 40, thereby achieving a rapid increase in the amount of clean air supplied to the environment.

[0188] For example, the third type of oil fume physical property information J 检测3 It can be the ratio of the gas flow rate Q1 at the air outlet 312 to the gas flow rate Q2 at the smoke inlet 111, i.e., J 检测3 =Q1 / Q2. The second preset condition is: to determine the third oil fume physical property information J. 检测3 Is it greater than or equal to the preset value J4 for the fourth oil fume physical property information? Since the ratio of gas flow rate Q1 to gas flow rate Q2 at the smoke inlet 111 is accurate and real-time detection information, the third oil fume physical property information J... 检测3 There will be no lag in the test results. Through the aforementioned adjustment methods, the amount of clean air discharged can be adjusted instantly, efficiently and quickly.

[0189] S25: Obtain secondary ambient pressure information;

[0190] S261: Determine whether the second ambient air pressure information meets the third preset condition: if not, proceed to S262; if yes, proceed to S31.

[0191] S262: Control the auxiliary fan to increase its speed until the second ambient air pressure information meets the third preset condition.

[0192] S25, S261, and S262 are guided by the final result of ambient air pressure and can adjust accordingly. Figure 3 The working state of the oil fume separation system 40 shown is further dynamically adjusted to make the adaptive balance of ambient air pressure more precise. It can achieve adaptive balance of ambient air pressure when the oil fume treatment device 100 is running under different working conditions. It can ensure that the oil fume separation system 40 provides fresh air to the kitchen to balance the air discharged from the kitchen due to oil fumes and heat generated during cooking, ensuring the health and work efficiency of kitchen staff and the normal operation of kitchen equipment.

[0193] By adjusting the parameters S23 to S262, the clean air output can be gradually increased without causing excessive changes in the ambient air pressure and the fume extraction effect during the overall process.

[0194] S31: Obtain the fourth oil fume physical property information of the cooking area J 检测4 ;

[0195] S32: Determine the fourth oil fume physical property information J 检测4 Is it less than the preset value J5 of the fifth oil fume physical property information? If not, proceed to S33; if yes, return to S211.

[0196] S33: Control the oil fume treatment device 100 to shut down.

[0197] By using S31, S32, and S33, the fume treatment device 100 can be shut down when the fume concentration is sufficiently low, thus achieving a good energy-saving effect for the range hood.

[0198] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An oil fume treatment device, comprising a piping assembly (30) and a fan assembly (20) disposed downstream thereof, characterized in that, The pipeline assembly (30) is provided with an air outlet (312). The fume treatment device further includes: an oil fume separation system (40) disposed inside the pipeline assembly (30), the oil fume separation system (40) having an oil fume inlet (411), an air outlet (422) and an oil fume discharge end (423) arranged along the flow direction of the oil fume, the air outlet (422) being connected to the air outlet (312), and the oil fume discharge end (423) being connected to the fan assembly (20); an environmental status detection mechanism configured to detect environmental status information, the fan assembly (20) and the oil fume separation system (40) being able to adjust their own working status according to the environmental status information detected by the environmental status detection mechanism; The oil fume separation system (40) includes an auxiliary fan (41) arranged along the flow direction of the oil fumes and an oil fume filtration mechanism (42). The auxiliary fan (41) has an oil fume inlet (411), and the oil fume filtration mechanism (42) has an air inlet (421), an air outlet (422), and an oil fume exhaust end (423). The air inlet (421) is located downstream of the auxiliary fan (41) and is connected to the air outlet (422). The oil fumes entering the auxiliary fan (41) are separated from the oil fume by the auxiliary fan (41). 1) Under the centrifugal force, the initial separation is carried out. Due to the different densities of the air and the oil fume mixture, the oil fume is separated into an air core M and an airflow N of the oil fume mixture. The air core M is located in the central region, and the airflow N of the oil fume mixture surrounds the outer periphery of the air core M. The air core M passes through the air inlet (421), the air outlet (422), and the air outlet (312) in sequence, and is discharged into the interior of the kitchen. The airflow N of the oil fume mixture moves along the outer periphery of the oil fume filter mechanism (42).

2. The fume treatment device according to claim 1, characterized in that, The environmental condition monitoring mechanism includes: an oil fume concentration monitoring mechanism, configured to detect the physical properties of the oil fumes. 检测 ; and / or a barometric pressure testing facility, configured to detect ambient barometric pressure information of the environment.

3. The fume treatment device according to claim 1, characterized in that, The fume filtration mechanism (42) is a conical cyclone tube, and the cross-sectional area of ​​the conical cyclone tube gradually increases along the flow direction of the fume.

4. The oil fume treatment device according to claim 3, characterized in that, The distance between the auxiliary fan (41) and the oil fume filter mechanism (42) is adjustable.

5. The fume treatment device according to claim 1, characterized in that, The pipeline assembly (30) includes: a pipeline assembly body (31) connected to the fan assembly (20); and a baffle assembly (32) disposed inside the pipeline assembly body (31), the baffle assembly (32) dividing the interior of the pipeline assembly body (31) into at least two channels (311), each channel (311) having a corresponding set of the oil fume separation system (40).

6. A control method, characterized in that, The control method, applied to the fume treatment device as described in any one of claims 1 to 5, includes: acquiring the environmental state information; and dynamically adjusting the working state of the fan assembly (20) and the working state of the fume separation system (40) based on the environmental state information, so as to adaptively balance the air pressure of the environment.

7. The control method according to claim 6, characterized in that, The environmental status information includes the first physical property information of the oil fumes. 检测1 The steps of dynamically adjusting the working state of the fan assembly (20) and the working state of the oil fume separation system (40) based on the first environmental air pressure information and the environmental state information include: adjusting the working state of the fan assembly (20) and the working state of the oil fume separation system (40) based on the first oil fume physical property information J 检测1 Control the working state of the fan assembly (20); adjust the working mode of the oil fume separation system (40) according to the first ambient air pressure information.

8. The control method according to claim 7, characterized in that, The pipeline assembly (30) includes a pipeline assembly body (31) and a baffle assembly (32) disposed therein. The baffle assembly (32) divides the interior of the pipeline assembly body (31) into at least two channels (311). Each channel (311) is provided with a corresponding set of the oil fume separation system (40). The oil fume separation system (40) includes an auxiliary fan (41) arranged along the flow direction of the oil fume and an oil fume filtration mechanism (42). The step of adjusting the working mode of the oil fume separation system (40) according to the first ambient air pressure information includes: obtaining the second oil fume physical property information J in each channel (311). 检测2 According to the second oil fume property information J in each of the channels (311) 检测2 At least two of the channels (311) are divided into a main smoke inlet channel or an auxiliary smoke inlet channel; the auxiliary fan (41) in the main smoke inlet channel is controlled to operate at a second auxiliary speed V. 辅助2 Running and in the first position L1, the auxiliary fan (41) in the auxiliary smoke inlet duct is controlled to operate at the third auxiliary speed V. 辅助3 Running and in the second position L2, where V 辅助2 <V 辅助3 L1 > L2.

9. The control method according to claim 8, characterized in that, After adjusting the working mode of the oil fume separation system (40) based on the first ambient air pressure information, the method further includes: obtaining the third oil fume physical property information J of the oil fume treatment device. 检测3 ; Determine the third oil fume property information J 检测3 Does the second preset condition meet? If not, control the fan assembly (20) to reduce its speed and control the auxiliary fan (41) to increase its speed.

10. The control method according to claim 9, characterized in that, The third oil fume physical property information J 检测3 The ratio of the gas flow rate Q1 at the air outlet (312) to the gas flow rate Q2 at the smoke inlet (111) of the fume treatment device; the second preset condition is: judging the third fume physical property information J. 检测3 Is it greater than or equal to the preset value J4 of the fourth oil fume physical property information? 11. The control method according to claim 9, characterized in that, The steps of controlling the fan assembly (20) to reduce its speed and controlling the auxiliary fan (41) to increase its speed also include: acquiring second ambient air pressure information; determining whether the second ambient air pressure information meets a third preset condition; if not, controlling the auxiliary fan (41) to increase its speed until the second ambient air pressure information meets the third preset condition.

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