Oil fume purifier, control method thereof and readable storage medium

Abstract

The application discloses a control method of an oil fume purifier, the oil fume purifier and a readable storage medium. A rotatable rotating body is arranged at an oil fume inlet. A water inlet of the rotating body is used for allowing cleaning liquid to enter a flow passage. A water spraying port is used for spraying the cleaning liquid. The rotating body is driven to rotate by a driving device. The water column sprayed by the rotating body can form a rotating water curtain at the oil fume inlet. When the oil fume passes through the water curtain, liquid oil can be dissolved into small water droplets, so that the liquid oil can be filtered. The target rotating speed of the rotating body and the target water spraying pressure of the water spraying port are determined according to the current oil fume concentration and the current oil fume amount. The oil fume filtering assembly can operate according to different oil fume concentrations and oil fume amounts, so that energy saving and emission reduction can be realized under the premise of ensuring the treatment effect of the liquid oil.

Description

Technical Field

[0001] This invention relates to the field of oil fume purification technology, and in particular to a control method for an oil fume purification machine, an oil fume purification machine, and a readable storage medium. Background Technology

[0002] Oil fume purifiers perform the first stage of filtration for oil fumes through an oil filter disc. This disc intercepts and filters liquid oil from the fumes to prevent contamination of subsequent gaseous oil fume filtration devices. However, because the oil filter disc is a solid disc, its oil interception effect is limited, resulting in significant contamination of subsequent fume treatment devices. Related technologies use a rotating water curtain to filter liquid oil, but the rotation speed and water pressure of the water curtain cannot be adjusted. This leads to insufficient filtration of oil when the volume and concentration of oil fumes are large, and waste of power when the volume and concentration are low. Summary of the Invention

[0003] The main objective of this invention is to propose a control method for an oil fume purifier, which aims to solve the technical problems of how to improve the filtration effect of oil in oil fumes and reduce power waste.

[0004] To achieve the above objectives, the oil fume purifier proposed in this invention includes:

[0005] The housing is provided with an oil fume inlet and an oil fume treatment channel, and the oil fume inlet is connected to the oil fume treatment channel;

[0006] An oil fume filter assembly includes a rotating body and a driving device. The rotating body is rotatably mounted at the oil fume inlet, and the axis of rotation of the rotating body extends along the opening direction of the oil fume inlet. The rotating body is provided with a water inlet, a water spray nozzle, and a flow channel connecting the water inlet and the water spray nozzle. The water spray nozzle is formed on the peripheral wall of the rotating body. The output shaft of the driving device is connected to the rotating body to drive the rotating body to rotate.

[0007] A water pump, wherein the outlet of the water pump is connected to the inlet to drive the cleaning fluid to flow to the inlet;

[0008] The control method for the fume purifier includes the following steps:

[0009] Obtain the current oil fume concentration and current oil fume volume at the oil fume inlet;

[0010] The target fan speed is determined based on the current amount of oil fume.

[0011] The target rotational speed of the rotating body and the target spray water pressure of the spray nozzle are obtained based on the current oil fume concentration and the target fan speed.

[0012] The rotating body is controlled to rotate at a target rotation speed, and the water pump power is controlled so that the cleaning fluid is sprayed out from the spray nozzle at a target spray pressure.

[0013] Optionally, the fume purifier has a fume collection chamber, and the number of fume inlets is multiple. The multiple fume inlets are arranged at intervals along the length of the fume collection chamber, and the multiple fume filter components are respectively disposed in the multiple fume inlets. The fume collection chamber includes multiple continuously arranged fume collection areas, and the fume collection areas correspond one-to-one with the fume filter components.

[0014] The steps of obtaining the current oil fume concentration and current oil fume volume at the oil fume inlet include:

[0015] Obtain the current oil fume concentration in the smoke collection area corresponding to the oil fume filter component;

[0016] Compare the current oil fume concentration with the starting oil fume concentration;

[0017] Determine that the current oil fume concentration is greater than or equal to the start-up oil fume concentration;

[0018] Get the current amount of oil fume in the smoke collection area.

[0019] Optionally, after the step of comparing the current oil fume concentration and the starting oil fume concentration, the method further includes:

[0020] Confirm that the current oil fume concentration is lower than the start-up oil fume concentration;

[0021] Turn off the fume filter component corresponding to the fume collection area.

[0022] Optionally, the step of obtaining the target fan speed based on the current amount of oil fume includes:

[0023] Compare the current amount of cooking fumes with the preset amount of cooking fumes;

[0024] If the current amount of oil fume is determined to be greater than or equal to the preset amount of oil fume, the target fan speed is set to the first preset speed.

[0025] If the current amount of oil fume is determined to be less than the preset amount of oil fume, the target fan speed is set to the second preset speed; wherein, the first preset speed is greater than the second preset speed.

[0026] Optionally, the fume filter assembly further includes a surrounding cylinder, which is disposed inside the fume inlet and surrounds the fume inlet, and the rotating body is disposed within the enclosed area of ​​the surrounding cylinder;

[0027] The steps of obtaining the target rotational speed of the rotating body and the target spray water pressure of the spray nozzle based on the current oil fume concentration and the target fan speed include:

[0028] Compare the current oil fume concentration with the preset oil fume concentration;

[0029] The current oil fume concentration is determined to be greater than or equal to a preset oil fume concentration, and the target fan speed is a first preset speed;

[0030] The target rotation speed is a first rotational speed, and the target spray water pressure is a first water pressure.

[0031] Optionally, after the step of comparing the current oil fume concentration with the preset oil fume concentration, the method further includes:

[0032] The current oil fume concentration is determined to be greater than or equal to a preset oil fume concentration, and the target fan speed is a second preset speed;

[0033] The target rotation speed is a second rotation speed, and the target spray water pressure is a first water pressure, wherein the second rotation speed is less than the first rotation speed.

[0034] Optionally, after the step of comparing the current oil fume concentration with the preset oil fume concentration, the method further includes:

[0035] It is determined that the current oil fume concentration is less than the preset oil fume concentration, and the target fan speed is the second preset speed;

[0036] The target rotation speed is a second rotation speed, and the target spray water pressure is a second water pressure, wherein the second rotation speed is less than the first rotation speed, and the second water pressure is less than the first water pressure.

[0037] Optionally, after the step of comparing the current oil fume concentration with the preset oil fume concentration, the method further includes:

[0038] It is determined that the current oil fume concentration is less than the preset oil fume concentration, and the target fan speed is the first preset speed;

[0039] The target rotation speed is a first rotational speed, and the target spray water pressure is a second water pressure, wherein the second water pressure is less than the first water pressure.

[0040] The present invention also proposes an oil fume purifier, which includes a memory, a processor, and a control program stored in the memory for implementing a control method for the oil fume purifier. The processor is used to execute the control program for implementing the control method for the oil fume purifier, so as to implement the steps of the control method for the oil fume purifier as described above.

[0041] The present invention also proposes a readable storage medium storing a control program, which, when executed by a processor, implements the steps of the control method for the fume purifier described above.

[0042] In the technical solution of the control method of the oil fume purifier of the present invention, a rotatable rotating body is set at the oil fume inlet. The water inlet of the rotating body allows the cleaning liquid to enter the flow channel, and the water nozzle can spray out the cleaning liquid. Then, the rotating body is driven to rotate by the driving device, so that the water column sprayed by the rotating body can form a rotating water curtain at the oil fume inlet. When the oil fume passes through the water curtain, the liquid oil can dissolve into the fine water droplets, thereby achieving the filtration of liquid oil.

[0043] The target spray water pressure of the nozzle is positively correlated with the current oil fume concentration, the target rotation speed of the rotating body is positively correlated with the target fan speed, and the target fan speed is positively correlated with the current oil fume volume. Therefore, by determining the target rotation speed of the rotating body and the target spray water pressure of the nozzle based on the current oil fume concentration and volume, the oil fume filter assembly can operate for different oil fume concentrations and volumes, thereby achieving energy saving and emission reduction while ensuring the liquid oil separation treatment effect. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0045] Figure 1 This is a schematic diagram of the structure of an embodiment of the oil fume purifier of the present invention;

[0046] Figure 2 This is a schematic diagram of another embodiment of the oil fume purifier of the present invention;

[0047] Figure 3 This is a cross-sectional schematic diagram of an embodiment of the oil fume purifier of the present invention;

[0048] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0049] Figure 5 This is a cross-sectional schematic diagram of another embodiment of the oil fume purifier of the present invention;

[0050] Figure 6 for Figure 5 A magnified view of a section at point B in the middle;

[0051] Figure 7 This is a cross-sectional schematic diagram of an embodiment of the rotating body in this invention;

[0052] Figure 8 This is a schematic diagram of the internal structure of an embodiment of the oil fume purifier of the present invention;

[0053] Figure 9 This is a schematic flowchart of another embodiment of the control method for the fume purifier of the present invention;

[0054] Figure 10 This is a flowchart illustrating another embodiment of the control method for the fume purifier of the present invention;

[0055] Figure 11 This is a flowchart illustrating another embodiment of the control method for the oil fume purifier of the present invention;

[0056] Figure 12 This is a flowchart detailing an embodiment of the control method for the oil fume purifier of the present invention;

[0057] Figure 13 This is a flowchart detailing another embodiment of the control method for the oil fume purifier of the present invention;

[0058] Figure 14 This is a flowchart detailing another embodiment of the control method for the fume purifier of the present invention.

[0059] Explanation of icon numbers:

[0060] label name label name label name 10 case 11 Oil fume inlet 20 Rotational body 21 Inlet 22 Spray nozzle 23 Overcurrent channel 30 spray head 40 Enclosure 51 Connecting pipe 52 water supply pipe 60 bearings 70 Water-retaining ring 12 Reflux tank 80 water pump 61 Connecting plate

[0061] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0062] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0063] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0064] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0065] Oil fume purifiers perform the first stage of filtration for oil fumes through an oil filter disc. This disc intercepts and filters liquid oil from the fumes to prevent contamination of subsequent gaseous oil fume filtration devices. However, because the oil filter disc is a solid disc, its oil interception effect is limited, resulting in significant contamination of subsequent fume treatment devices. Related technologies use a rotating water curtain to filter liquid oil, but the rotation speed and water pressure of the water curtain cannot be adjusted. This leads to insufficient filtration of oil when the volume and concentration of oil fumes are large, and waste of power when the volume and concentration are low.

[0066] This invention proposes a range hood that aims to solve the technical problem of how to improve the filtration effect of oil in cooking fumes.

[0067] In embodiments of the present invention, such as Figures 1 to 6 As shown, Figure 1 This is a schematic diagram of the structure of an embodiment of the oil fume purifier of the present invention; Figure 2 This is a schematic diagram of another embodiment of the oil fume purifier of the present invention; Figure 3 This is a cross-sectional schematic diagram of an embodiment of the oil fume purifier of the present invention; Figure 4 for Figure 3 A magnified view of a section at point A in the middle; Figure 5 This is a cross-sectional schematic diagram of another embodiment of the oil fume purifier of the present invention; Figure 6 for Figure 5 A magnified view of a section at point B.

[0068] The fume purifier includes: a housing 10, which has a fume inlet 11 and a fume treatment channel, the fume inlet 11 being connected to the fume treatment channel; a fume filter assembly, which includes a rotating body 20 and a drive device (not shown), the rotating body 20 being rotatably mounted at the fume inlet 11, the rotation axis of the rotating body 20 extending along the opening direction of the fume inlet 11; the rotating body 20 having a water inlet 21, a water spray nozzle 22, and a flow channel 23 connecting the water inlet 21 and the water spray nozzle 22, the water spray nozzle 22 being formed on the peripheral wall of the rotating body 20; the output shaft of the drive device being connected to the rotating body 20 to drive the rotating body 20 to rotate; and a water pump, the outlet of which is connected to the water inlet to drive the cleaning fluid to flow to the water inlet.

[0069] In this embodiment, the housing 10 forms the overall appearance of the fume purifier. The specific shape of the housing 10 is not limited, as long as it includes a fume inlet 11 and a fume treatment channel. The fume inlet 11 can be located on the front side wall or the bottom wall of the housing 10; there are no restrictions, as long as upward-flowing fumes can enter the fume treatment channel from the fume inlet 11. The fume purifier may also include a gas-driven device, which can be installed in the fume treatment channel to drive airflow from the fume inlet 11 to the fume treatment channel, thereby driving the fumes near the fume inlet 11 into the fume treatment channel.

[0070] The rotating body 20 is located inside the fume inlet 11. The rotating body 20 can be entirely located inside the fume inlet 11 or partially extended beyond it; this is not a limitation. It should be noted that the water spray nozzle 22 should be located on the portion of the rotating body 20 inside the fume inlet 11 to prevent water sprayed from the nozzle 22 from leaking outside the fume purifier. It is understood that the water flowing into the flow channel 23 through the water inlet 21 is not limited to water; it can also be other liquid cleaning agents that can dissolve oil, collectively referred to here as cleaning fluid. The driving device can be a drive motor. The output shaft of the drive device can be directly connected to the rotating body 20 or indirectly; this is not a limitation, as long as the output shaft of the drive device can drive the rotating body 20 to rotate.

[0071] When the fume filter assembly is working, the drive device drives the rotating body 20 to rotate, and at the same time, the water nozzle 22 of the rotating body 20 sprays out a water column. The water column rotates synchronously with the rotating body 20 to form a water curtain, and the spray direction of the water column and the plane it passes through during rotation are perpendicular to the flow direction of the fume when it flows into the fume inlet 11. When the fume flows into the fume inlet 11, it is dispersed by the impact of the water curtain from two directions. The dispersed oil is dissolved by the fine water droplets in the water curtain, thus dissolving into the cleaning liquid, thereby achieving the filtration of liquid oil.

[0072] Compared to solid oil filter discs, liquid water curtains can increase the contact area with oil fumes, thereby intercepting and dissolving more liquid oil. Furthermore, the water curtain can exert forces on the oil fumes in two different directions through spraying and rotation, which can more thoroughly disperse the oil fumes and dissolve more liquid oil, thus improving the filtration effect on liquid oil.

[0073] The number of fume inlets 11 can be two or more, and multiple fume inlets 11 are spaced apart along the length of the housing 10 to increase the intake of fumes. Each fume inlet 11 is provided with a rotating body 20, and multiple rotating bodies 20 can be driven to rotate by the same driving device or by different driving devices.

[0074] Specifically, such as Figure 6 and Figure 7 As shown, Figure 7 This is a cross-sectional schematic diagram of an embodiment of the rotating body 20 in this invention. The fume filtration assembly also includes a nozzle 30, which is installed at the water spray nozzle 22 and protrudes from the peripheral wall of the rotating body 20. The nozzle 30 communicates with the water spray nozzle 22 and can extend the flow path of the water before it is sprayed out, so that the water can be sufficiently accelerated before being sprayed out, thereby increasing the flow velocity of the water column after spraying, extending the spray distance of the water column, and increasing the impact force of the water column on the fume, thereby improving the filtration effect of the fume.

[0075] The number of water nozzles 22 can be one, two or more.

[0076] In practical applications, such as Figure 6 and Figure 7 As shown, there are multiple water spray nozzles 22, which are spaced apart circumferentially along the rotating body 20. The number and position of the nozzles 30 correspond to the rotating body 20. Setting the number of water spray nozzles 22 to multiple increases the coverage of the moving area when the water column rotates, thereby increasing the amount of oil fume dispersed and dissolved, and further improving the filtration effect of oil fume.

[0077] Two rings of water nozzles 22 can be provided on the peripheral wall of the rotating body 20. The water nozzles 22 at both ends are spaced apart along the axial direction of the rotating body 20, and the two rings of water nozzles 22 are arranged in a gap in the circumference of the rotating body 20. In this way, the coverage of the water column sprayed from the water nozzle 22 on the active area can be increased, thereby increasing the contact area with the oil fumes and preventing the oil fumes from passing directly between two adjacent water columns, thereby further improving the filtration effect of the oil fumes.

[0078] The spray direction of the nozzle 30 can be consistent with the radial direction of the rotating body 20 passing through the spray nozzle 22 where the nozzle 30 is located, or it can be at an angle to the radial direction of the rotating body 20 passing through the spray nozzle 22 where the nozzle 30 is located.

[0079] For example, such as Figure 7 As shown, the spray direction of the nozzle 30 is set at an angle α with the radial direction of the rotating body 20 through the spray nozzle 22 where the nozzle 30 is located, so that the water flow sprayed from the nozzle 30 forms a swirling flow. The rotation direction of the rotating body 20 can be consistent with the swirling flow direction. The swirling flow can reduce the resistance caused by the rotation of the rotating body 20, thereby increasing the rotation speed and efficiency of the rotating body 20, and thus increasing the rotation speed of the water column to improve the dispersion of oil fumes.

[0080] Specifically, the nozzle width of the nozzle 30 gradually increases from the end closer to the water spray port 22 toward the end farther away from the water spray port 22. In this way, the sprayed water column gradually thickens from the end closer to the nozzle 30 toward the end farther away from the nozzle 30, thereby increasing the contact area with oil fumes farther away from the rotating body 20, so as to ensure the filtration effect of oil fumes farther away from the rotating body 20.

[0081] For example, such as Figure 4 , Figure 6 and Figure 8 As shown, Figure 8 This is a schematic diagram of the internal structure of an embodiment of the oil fume purifier of the present invention. The oil fume filter assembly also includes a surrounding cylinder 40, which is disposed inside and around the oil fume inlet 11. The rotating body 20 is disposed within the enclosed area of ​​the surrounding cylinder 40. The surrounding cylinder 40 can limit the flow range of oil fumes after entering the oil fume inlet 11 and before passing through the water curtain, preventing the oil fumes from spreading arbitrarily outside the coverage area of ​​the water curtain, so as to ensure that the oil fumes can contact the water curtain after entering the oil fume inlet 11, thereby improving the filtration effect of the oil fumes. In addition, the surrounding cylinder 40 can also act as a barrier for the sprayed water flow, preventing the water flow from splashing randomly to other positions. Under the barrier effect of the surrounding cylinder 40, the water flow can converge to a lower position, which is convenient for subsequent discharge or recycling. It is worth noting that after the water column is sprayed onto the inner wall of the surrounding cylinder 40, it will collide with the inner wall of the surrounding cylinder 40 to form a water mist. Within a confined space, the surrounding water nozzles 22 continuously spray water jets that rotate and collide with the surrounding cylinder, creating a splash barrier within the cylinder 40. This splash barrier forms on both the front and rear sides of the water jets (along the direction of oil fume movement or along the axial direction of the cylinder 40). The front splash barrier slows down the oil fume, pre-treating it. The central water jet impacts the slowed oil fume radially and circumferentially. After impact, the oil fume rotates and passes through the rear splash barrier, thus significantly increasing the contact time and contact area between the oil fume and the cleaning fluid.

[0082] For example, such as Figure 4As shown, the spray nozzle 22 is located on the peripheral wall of the rotating body 20 near the fume inlet 11, and the water inlet 21 is located on the end wall of the rotating body 20 away from the fume inlet 11. The fume filter assembly also includes a connecting pipe 51 and a water supply pipe 52. One end of the connecting pipe 51 is connected to the water inlet 21, and the other end is connected to the water outlet of the water supply pipe 52 and can be rotatably engaged.

[0083] The centerline of the inlet 21 can coincide with the rotation axis of the rotating body 20. The outlet ends of the connecting pipe 51 and the water supply pipe 52 are both coaxially arranged with the inlet 21. The inlet 21 is connected to the water supply pipe 52 through the connecting pipe 51, so that while the water supply pipe 52 supplies water to the inlet 21, the rotating body 20 can also rotate relative to the water supply pipe 52. In this way, the obstruction to the rotation of the rotating body 20 caused by the water intake process can be avoided, so as to ensure the water intake stability and rotational stability of the rotating body 20 at the same time.

[0084] Specifically, such as Figure 4 As shown, the fume filter assembly also includes a bearing 60. The inner ring of the bearing 60 is fixedly fitted with the connecting pipe 51, and the outer ring of the bearing 60 is connected to the surrounding cylinder 40 via a connecting plate 61. The bearing 60 is fixed relative to the surrounding cylinder 40, while the inner ring of the bearing 60 supports the rotation of the rotating body 20. This reduces the radial vibration of the rotating body 20 during rotation, thereby improving rotational stability and reducing the swaying of the water column, thus improving the filtration effect of the water column on the fume.

[0085] In practical applications, such as Figure 4 As shown, the fume purifier also includes a water-blocking ring 70, which is connected to the periphery of the fume inlet 11 and located on the inner side of the fume inlet 11. The water jet ejected by the rotating body 20, after hitting the surrounding cylinder 40, flows downwards along the inner wall of the surrounding cylinder 40. The water-blocking ring 70 prevents the water flowing along the surrounding cylinder 40 from flowing out of the fume inlet 11, thus avoiding leakage at the fume inlet 11. The end of the water-blocking ring 70 furthest from the fume inlet 11 should be positioned away from the spray path of the water nozzle 22 to prevent the water jet ejected from the water nozzle 22 from directly hitting the water-blocking ring 70.

[0086] The cleaning fluid sprayed by the rotating body 20 can be collected and discharged, or it can be recycled.

[0087] For example, such as Figure 8As shown, the housing 10 also includes a return channel 12, located below the fume filter assembly. The inlet of the water pump 80 is connected to the return channel 12, and the outlet is connected to the water supply pipe 52. The cleaning liquid sprayed from the rotating body 20 eventually flows back to the return channel 12 for reuse. The water pump 80 drives the cleaning liquid in the return channel 12 to flow to the rotating body 20 through the water supply pipe 52, thereby achieving the recycling of the cleaning liquid and reducing waste. The return channel 12 has a drain outlet with a valve. When the cleaning liquid needs to be replaced, the drain outlet can be opened to drain the old cleaning liquid, thereby improving the subsequent filtration effect on the fumes.

[0088] For example, such as Figure 9 As shown, Figure 9 This is a flowchart illustrating another embodiment of the control method for the fume purifier of the present invention. The present invention also proposes a control method for a fume purifier, aiming to solve the technical problems of how to improve the filtration effect of oil in fumes and reduce power waste.

[0089] The control method for the fume purifier includes the following steps:

[0090] S100: Obtain the current oil fume concentration and current oil fume volume at the oil fume inlet 11;

[0091] S200: Obtain the target fan speed based on the current amount of oil fume;

[0092] S300: Obtain the target rotational speed of the rotating body 20 and the target spray water pressure of the spray nozzle 22 based on the current oil fume concentration and the target fan speed;

[0093] S400: Control the rotating body 20 to rotate at the target rotation speed, and control the power of the water pump 80 to make the cleaning liquid sprayed from the spray nozzle 22 at the target spray water pressure.

[0094] In this embodiment, the current oil fume concentration can be obtained by installing an oil fume concentration sensor at the oil fume inlet 11, and the current oil fume volume can be obtained by installing an oil fume flow sensor at the oil fume inlet 11. The oil fume purifier also includes a fan installed in the oil fume treatment channel. The fan can drive airflow from outside the oil fume inlet 11 into the oil fume treatment channel to improve the oil fume treatment efficiency. The fan speed is positively correlated with the current oil fume volume; that is, the larger the current oil fume volume, the higher the target fan speed; the smaller the current oil fume volume, the lower the target fan speed. By adjusting the fan speed (gear), the treatment effect can be improved for different oil fume volumes.

[0095] The rotational speed of the rotating body 20 can be adjusted by regulating the drive device. The rotational speed of the rotating body 20 affects the speed at which oil fumes pass through the oil fume filter assembly. Therefore, when the target fan speed is high, the rotational speed of the rotating body 20 should also be increased accordingly to reasonably control the flow rate of oil fumes through the oil fume filter assembly, prolonging the contact time between the oil fumes and the water column sprayed by the rotating body 20, thereby improving the oil fume treatment effect. When the target fan speed is low, the rotational speed of the rotating body 20 should also be decreased accordingly to ensure that the oil fumes can pass through the oil fume filter assembly normally. By adjusting the rotational speed of the rotating body 20, it can adapt to different fan speeds, and thus adapt to different amounts of oil fume. Therefore, under different oil fume volumes, the rotating body 20 can reasonably control the flow rate of oil fumes through the oil fume filter assembly, ensuring the contact time between the oil fumes and the water column sprayed by the rotating body 20, thereby improving the oil fume treatment effect.

[0096] The spray water pressure of nozzle 22 can be adjusted by regulating the power setting of the water pump (80). The spray water pressure of nozzle 22 affects the filtration efficiency of liquid oil in the fumes. Therefore, the spray water pressure of nozzle 22 is positively correlated with the concentration of fumes. The higher the concentration of fumes, the higher the target spray water pressure of nozzle 22, so that the velocity and flow rate of the sprayed water column are greater, allowing it to combine more with the liquid oil in the fumes for more thorough filtration. Conversely, the lower the concentration of fumes, the lower the target spray water pressure of nozzle 22, and the velocity and flow rate of the sprayed water column are correspondingly reduced. This allows for reasonable control of the water pump setting (80) while ensuring the filtration effect of fumes, thereby achieving energy conservation and emission reduction.

[0097] By determining the target fan speed based on the current amount of oil fume, the airflow driving force generated by the fan can effectively correspond to the current amount of oil fume, ensuring the intake speed of oil fume at the oil fume inlet 11. By determining the target rotational speed of the rotating body 20 and the target spray water pressure of the spray nozzle 22 based on the current oil fume concentration and the target fan speed, the target rotational speed of the rotating body 20 and the target spray water pressure of the spray nozzle 22 can effectively correspond to the target fan speed and the current oil fume concentration, ensuring the treatment effect of oil fume and achieving energy saving and emission reduction under the premise of this.

[0098] Specifically, such as Figure 2 and Figure 10 As shown, Figure 10 This is a flowchart illustrating another embodiment of the control method for the fume purifier of the present invention.

[0099] The fume purifier has a fume collection chamber, and there are multiple fume inlets 11. The multiple fume inlets are arranged at intervals along the length of the fume collection chamber, and multiple fume filter components are respectively disposed in the multiple fume inlets 11. The fume collection chamber includes multiple continuously arranged fume collection areas, and each fume collection area corresponds to one of the fume filter components.

[0100] The steps of obtaining the current oil fume concentration and current oil fume volume of the oil fume inlet 11 include:

[0101] S110. Obtain the current oil fume concentration in the smoke collection area corresponding to the oil fume filter component;

[0102] S120. Compare the current oil fume concentration with the starting oil fume concentration;

[0103] S130. Determine that the current oil fume concentration is greater than or equal to the start-up oil fume concentration;

[0104] S140. Obtain the current amount of oil fume in the smoke collection area.

[0105] In this embodiment, the fume purifier can simultaneously process the fumes generated by multiple stoves. Different fume inlets 11 can correspond to different stoves. When only some stoves are working, the current fume concentration in the fume collection area corresponding to these stoves is relatively high. Therefore, after obtaining the current fume concentration in the fume collection area near each fume filter component, it can be first determined whether the current fume concentration has reached the activation fume concentration. If it is determined that the current fume concentration is greater than or equal to the activation fume concentration, it indicates that the stove corresponding to the fume filter component is in working condition and the corresponding fume filter component needs to be activated in time to process the fumes. Therefore, it is necessary to obtain the current fume volume in the fume collection area to determine the target fan speed, the target rotation speed of the rotating body 20, and the target spray water pressure of the spray nozzle 22.

[0106] In practical applications, such as Figure 10 As shown, after the step of comparing the current oil fume concentration and the starting oil fume concentration, the method further includes:

[0107] S150. Determine that the current oil fume concentration is lower than the start-up oil fume concentration;

[0108] S160. Close the fume filter assembly corresponding to the fume collection area.

[0109] If the current oil fume concentration is determined to be lower than the start-up oil fume concentration, it means that the stove corresponding to the current smoke collection area is not working. There is no need to start the oil fume filter component of the corresponding oil fume inlet 11 to filter the oil fume. This can prevent the oil fume filter component from operating ineffectively, thereby improving the effective utilization rate of the oil fume filter component and contributing to energy conservation and emission reduction.

[0110] For example, such as Figure 11 As shown, Figure 11 This is a flowchart illustrating another embodiment of the control method for the fume purifier of the present invention.

[0111] The step of obtaining the target fan speed based on the current oil fume volume includes:

[0112] S210. Compare the current amount of oil fume with the preset amount of oil fume;

[0113] S220. Determine that the current amount of oil fume is greater than or equal to the preset amount of oil fume, and the target fan speed is the first preset speed.

[0114] S230. Determine that the current amount of oil fume is less than the preset amount of oil fume, and the target fan speed is the second preset speed; wherein, the first preset speed is greater than the second preset speed.

[0115] In this embodiment, if the current amount of oil fume is greater than the preset amount of oil fume, it indicates that the amount of oil fume is large. Therefore, a larger first preset rotation speed is required to increase the driving speed of the airflow, so that the oil fume is drawn into the oil fume inlet 11 more quickly, thereby preventing the oil fume from spreading. If the current amount of oil fume is less than the preset amount of oil fume, it indicates that the amount of oil fume is small. Therefore, only a smaller second preset rotation speed is needed to make reasonable use of the fan's power setting.

[0116] The fume filter assembly also includes a surrounding cylinder 40, which is disposed inside the fume inlet 11 and surrounds the fume inlet 11, and the rotating body 20 is disposed within the enclosed area of ​​the surrounding cylinder 40.

[0117] The confining cylinder 40 restricts the flow range of oil fumes after they enter the oil fume inlet 11 and pass before the water curtain, preventing the oil fumes from spreading arbitrarily beyond the coverage area of ​​the water curtain. This ensures that all oil fumes entering the oil fume inlet 11 can contact the water curtain, thereby improving the filtration effect. Furthermore, the confining cylinder 40 also acts as a barrier for the sprayed water flow, preventing it from splashing randomly to other locations. Under the confining effect of the confining cylinder 40, the water flow converges towards lower areas, facilitating subsequent discharge or recycling. It is worth noting that after the water jet hits the inner wall of the confining cylinder 40, it collides with the inner wall to form a water mist. Within the limited space, the continuous spraying of water jets from the surrounding nozzles 22, with the water jets constantly rotating and colliding with the confining cylinder 40, creates a splash barrier inside the confining cylinder 40. This splash barrier forms on both sides of the water jet (along the direction of oil fume movement or along the axial direction of the confining cylinder 40). The front splash barrier slows down the oil fumes and pre-treats them. The water column in the middle impacts the slowed oil fumes radially and circumferentially. After being impacted, the oil fumes rotate and pass through the rear splash barrier. This greatly increases the contact time and contact area between the oil fumes and the cleaning fluid.

[0118] For example, such as Figure 12 As shown, Figure 12 This is a flowchart detailing an embodiment of the control method for the fume purifier of the present invention. The step of obtaining the target rotational speed of the rotating body 20 and the target spray water pressure of the spray nozzle 22 based on the current fume concentration and the target fan speed includes:

[0119] S310. Compare the current oil fume concentration with the preset oil fume concentration;

[0120] S320. Determine that the current oil fume concentration is greater than or equal to the preset oil fume concentration, and that the target fan speed is the first preset speed;

[0121] S330, the target rotation speed is a first rotation speed, and the target spray water pressure is a first water pressure.

[0122] The higher the target water pressure of the nozzle 22, the more splash water droplets are generated after the water column hits the enclosure 40, thus combining more liquid oil. If the current oil fume concentration is greater than or equal to the preset oil fume concentration, and the target fan speed is the first preset speed, it means that the amount of oil fume is large and the oil fume concentration is high. Therefore, the rotating body 20 needs to rotate at a larger first speed to effectively intercept the oil fume inside the enclosure 40; at the same time, the nozzle 22 needs to spray water column with a larger first water pressure to generate more splash water droplets to combine with the liquid oil.

[0123] For example, such as Figure 12 As shown, after the step of comparing the current oil fume concentration with the preset oil fume concentration, the method further includes:

[0124] S340. Determine that the current oil fume concentration is greater than or equal to the preset oil fume concentration, and that the target fan speed is the second preset speed;

[0125] S350, the target rotation speed is a second rotation speed, the target spray water pressure is a first water pressure, wherein the second rotation speed is less than the first rotation speed.

[0126] If the current oil fume concentration is greater than or equal to the preset oil fume concentration, and the target fan speed is the second preset speed, it means that the amount of oil fume is small but the oil fume concentration is high. Therefore, the rotating body 20 needs to rotate at a smaller second speed, and the water nozzle 22 needs to spray water jets at a larger first water pressure. This can effectively intercept oil fumes and filter liquid oil, and also reduce the ineffective consumption of power source.

[0127] For example, such as Figure 13 As shown, Figure 13 This is a detailed flowchart of another embodiment of the control method for the oil fume purifier of the present invention. After the step of comparing the current oil fume concentration with the preset oil fume concentration, the method further includes:

[0128] S360. Determine that the current oil fume concentration is less than the preset oil fume concentration, and that the target fan speed is the second preset speed;

[0129] S370, the target rotation speed is a second rotation speed, the target spray water pressure is a second water pressure, wherein the second rotation speed is less than the first rotation speed, and the second water pressure is less than the first water pressure.

[0130] If the current oil fume concentration is less than the preset oil fume concentration, and the target fan speed is the second preset speed, it means that the amount of oil fume is small and the oil fume concentration is also low. Therefore, the rotating body 20 needs to rotate at a smaller second speed, and the water nozzle 22 needs to spray water jets at a smaller second water pressure. This can effectively intercept oil fumes and filter liquid oil, and also reduce the ineffective consumption of power source.

[0131] For example, such as Figure 14 As shown, Figure 14 This is a detailed flowchart illustrating another embodiment of the control method for the fume purifier of the present invention. Following the step of comparing the current fume concentration with the preset fume concentration, the method further includes:

[0132] S380. Determine that the current oil fume concentration is less than the preset oil fume concentration, and that the target fan speed is the first preset speed;

[0133] S390, the target rotation speed is a first rotation speed, and the target spray water pressure is a second water pressure, wherein the second water pressure is less than the first water pressure.

[0134] If the current oil fume concentration is less than the preset oil fume concentration, and the target fan speed is the first preset speed, it means that the amount of oil fume is large but the oil fume concentration is low. Therefore, the rotating body 20 needs to rotate at a larger first speed, and the water nozzle 22 needs to spray water jets at a smaller second water pressure. This can effectively intercept oil fumes and filter liquid oil, and also reduce the ineffective consumption of power source.

[0135] The present invention also proposes an oil fume purifier, which includes a memory, a processor, and a control program stored in the memory for implementing a control method for the oil fume purifier. The processor is used to execute the control program for implementing the control method for the oil fume purifier, so as to implement the steps of the control method for the oil fume purifier as described above.

[0136] The present invention also proposes a readable storage medium storing a control program, which, when executed by a processor, implements the steps of the control method for the fume purifier described above.

[0137] In the technical solution of the control method of the oil fume purifier of the present invention, a rotatable rotating body 20 is provided at the oil fume inlet 11. The water inlet of the rotating body 20 allows cleaning liquid to enter the flow channel, and the water nozzle 22 can spray out the cleaning liquid. Then, the rotating body 20 is driven to rotate by the driving device, so that the water column sprayed by the rotating body 20 can form a rotating water curtain at the oil fume inlet 11. When the oil fume passes through the water curtain, the liquid oil can dissolve into the fine water droplets, thereby achieving the filtration of liquid oil.

[0138] The target spray water pressure of the nozzle 22 is positively correlated with the current oil fume concentration, the target rotation speed of the rotating body 20 is positively correlated with the target fan speed, and the target fan speed is positively correlated with the current oil fume volume. Therefore, by determining the target rotation speed of the rotating body 20 and the target spray water pressure of the nozzle 22 based on the current oil fume concentration and the current oil fume volume, the oil fume filter assembly can operate for different oil fume concentrations and volumes, thereby achieving energy saving and emission reduction while ensuring the liquid oil separation treatment effect.

[0139] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A control method for an oil fume purifier, characterized in that, Fume purifiers include: The housing is provided with an oil fume inlet and an oil fume treatment channel, and the oil fume inlet is connected to the oil fume treatment channel; An oil fume filter assembly includes a rotating body and a driving device. The rotating body is rotatably mounted at the oil fume inlet, and the axis of rotation of the rotating body extends along the opening direction of the oil fume inlet. The rotating body is provided with a water inlet, a water spray nozzle, and a flow channel connecting the water inlet and the water spray nozzle. The water spray nozzle is formed on the peripheral wall of the rotating body. The output shaft of the driving device is connected to the rotating body to drive the rotating body to rotate. A water pump, wherein the outlet of the water pump is connected to the inlet to drive the cleaning fluid to flow to the inlet; The control method for the fume purifier includes the following steps: Obtain the current oil fume concentration and current oil fume volume at the oil fume inlet; The target fan speed is determined based on the current amount of oil fume. The target rotational speed of the rotating body and the target spray water pressure of the spray nozzle are obtained based on the current oil fume concentration and the target fan speed. The rotating body is controlled to rotate at a target rotation speed, and the water pump power is controlled so that the cleaning fluid is sprayed out from the spray nozzle at a target spray pressure; The step of obtaining the target fan speed based on the current oil fume volume includes: Compare the current amount of cooking fumes with the preset amount of cooking fumes; If the current amount of oil fume is determined to be greater than or equal to the preset amount of oil fume, the target fan speed is set to the first preset speed. If the current amount of oil fume is determined to be less than the preset amount of oil fume, the target fan speed is set to a second preset speed; wherein, the first preset speed is greater than the second preset speed. The fume filter assembly also includes a surrounding cylinder, which is disposed inside the fume inlet and surrounds the fume inlet, and the rotating body is disposed within the enclosed area of ​​the surrounding cylinder; The steps of obtaining the target rotational speed of the rotating body and the target spray water pressure of the spray nozzle based on the current oil fume concentration and the target fan speed include: Compare the current oil fume concentration with the preset oil fume concentration; The current oil fume concentration is determined to be greater than or equal to a preset oil fume concentration, and the target fan speed is a first preset speed; The target rotation speed is a first rotational speed, and the target spray water pressure is a first water pressure; Following the step of comparing the current oil fume concentration with the preset oil fume concentration, the following is also included: The current oil fume concentration is determined to be greater than or equal to a preset oil fume concentration, and the target fan speed is a second preset speed; The target rotation speed is a second rotation speed, and the target spray water pressure is a first water pressure, wherein the second rotation speed is less than the first rotation speed.

2. The control method for the fume purifier as described in claim 1, characterized in that, The fume purifier has a fume collection chamber, and there are multiple fume inlets. The multiple fume inlets are arranged at intervals along the length of the fume collection chamber, and multiple fume filter components are respectively disposed in the multiple fume inlets. The fume collection chamber includes multiple continuously arranged fume collection areas, and each fume collection area corresponds to one of the fume filter components. The steps of obtaining the current oil fume concentration and current oil fume volume at the oil fume inlet include: Obtain the current oil fume concentration in the smoke collection area corresponding to the oil fume filter component; Compare the current oil fume concentration with the starting oil fume concentration; Determine that the current oil fume concentration is greater than or equal to the start-up oil fume concentration; Get the current amount of oil fume in the smoke collection area.

3. The control method for the fume purifier as described in claim 2, characterized in that, Following the step of comparing the current oil fume concentration with the activated oil fume concentration, the following further steps are also included: Confirm that the current oil fume concentration is lower than the start-up oil fume concentration; Turn off the fume filter component corresponding to the fume collection area.

4. The control method for the fume purifier as described in claim 1, characterized in that, Following the step of comparing the current oil fume concentration with the preset oil fume concentration, the following is also included: It is determined that the current oil fume concentration is less than the preset oil fume concentration, and the target fan speed is the second preset speed; The target rotation speed is a second rotation speed, and the target spray water pressure is a second water pressure, wherein the second rotation speed is less than the first rotation speed, and the second water pressure is less than the first water pressure.

5. The control method for the fume purifier as described in claim 1, characterized in that, Following the step of comparing the current oil fume concentration with the preset oil fume concentration, the following is also included: It is determined that the current oil fume concentration is less than the preset oil fume concentration, and the target fan speed is the first preset speed; The target rotation speed is a first rotational speed, and the target spray water pressure is a second water pressure, wherein the second water pressure is less than the first water pressure.

6. An oil fume purifier, characterized in that, The device includes a memory, a processor, and a control program stored in the memory for implementing a control method for a fume purifier. The processor is used to execute the control program for implementing the control method for the fume purifier, so as to implement the steps of the control method for the fume purifier as described in any one of claims 1 to 5.

7. A readable storage medium, characterized in that, The readable storage medium stores a control program, which, when executed by a processor, implements the steps of the control method for the fume purifier as described in any one of claims 1 to 5.

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