A waste gas purification device based on plant extract liquid atomization and bionic controller

Abstract

The application discloses a kind of based on plant extract liquid atomization and bionic controller's waste gas purification device, it is related to waste gas purification treatment field, including plant extract liquid emitter, UV photocatalytic lamp assembly, ultrasonic generator, low-temperature plasma filter device and bionic flow control device;With plant extract liquid specific component combination UV photoelectrolytic catalytic technology, oxidation decomposition nitrogen oxide generated free radical, block free radical chain reaction to remove nitrogen dioxide, provide more depth efficient purification effect, by ultrasonic atomization technology plant extract liquid is converted into small ionic state particles, combination low-temperature plasma filter device reduces waste gas diffusion rate, greatly increase plant extract liquid and impurity and harmful tail gas contact area and reaction length, by bionic flow control device, utilize the uneven deformation characteristics caused by different thermal expansion coefficients of bimetallic strip, control switch and adjust flow size, further improve resource utilization efficiency and sustainability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste gas purification treatment, and particularly relates to a waste gas purification device based on plant extract liquid atomization and a bionic controller. BACKGROUND

[0002] With the rapid development of industrialization and urbanization, air pollution has become a global environmental problem. In particular, volatile organic compounds and nitrogen oxides emitted in industrial production and automobile exhaust pose a serious threat to human health and the ecosystem. Traditional air purification technologies, such as activated carbon adsorption, can alleviate pollution to some extent, but due to their high wind resistance, high energy consumption, and difficulty in regeneration, they are difficult to meet the demand for efficient and sustainable air purification.

[0003] In order to solve these problems, in recent years, researchers have proposed high-energy atomization technology, which atomizes the purification medium into particles to increase the contact area with impurities in the air, thereby improving the purification efficiency. However, the commonly used purification medium at present is tap water, which has weak adsorption capacity and is difficult to effectively remove particulate matter and organic waste gas in the air. In addition, although high-energy atomization technology can increase the gas-liquid contact area, due to the high initial velocity generated during spraying, the contact time between air and liquid is greatly shortened, which affects the overall purification effect. At the same time, the conventional high-energy atomization technology lacks a suitable on-off control mechanism and cannot achieve automatic control and flow regulation, and is always in a spraying state, resulting in resource waste. This challenge needs to be overcome by improving the adjustable control technology that can be automatically turned on and off and selecting a purification medium with stronger adsorption capacity and the ability to effectively remove volatile gases to achieve more efficient and sustainable air purification. SUMMARY

[0004] The purpose of the present application is to provide a waste gas purification device based on plant extract liquid atomization and a bionic controller, which solves the problems of low efficiency of the purification equipment in treating air, especially poor effect in removing nitrogen oxides and organic particulate matter in air and automobile exhaust, and lack of automatic control and flow regulation function in the prior art.

[0005] In order to achieve the above purpose, the present application provides the following technical scheme: a waste gas purification device based on plant extract liquid atomization and a bionic controller, comprising an A treatment box, a liquid collecting pool is arranged at the bottom of the inner cavity of the A treatment box, an ultrasonic wave generating assembly and a UV photocatalytic assembly are arranged at the top of the liquid collecting pool, an A gas pipe is communicated with one side of the upper end of the liquid collecting pool, one end of the A gas pipe is communicated with a B treatment box, and a low-temperature plasma filter device is arranged in the B treatment box.

[0006] In the A processing box, an atomizing device is arranged at the top of the liquid collection pool, which sprays misty plant extract to the end of the A air pipe on one side of the A processing box, and the plant extract is prepared by turpentine, tea tree oil, xanthan gum and water; the specific production process is as follows: first, 10ml xanthan gum is added to deionized water, and gently stirred and heated to warm (about 50-60℃) until it is completely dissolved, thereby forming a uniform colloid. Then, while stirring, take equal amounts of 40ml turpentine and 40ml tea tree oil, gradually add to the already dissolved colloid solution, ensure that the ingredients are fully mixed, then use an ultrasonic instrument to ultrasonically treat the mixture (about 30 minutes) to promote the full mixing of the ingredients and form a stable emulsion. Finally, cool the mixture to room temperature, then transfer it to a clean, dry container, seal and store to avoid light and high temperature affecting the stability of its ingredients, before use, gently shake or stir the mixture to ensure uniform distribution of ingredients.

[0007] A secondary processing mechanism is arranged inside the A processing box and close to the side of the A air pipe, which includes a partitioned cabin and a positive and negative oxygen ion generator fixedly installed on the inner wall of the A processing box, two UV photocatalytic lamps are arranged on the top of the positive and negative oxygen ion generator, the photocatalytic material of which is titanium dioxide (TiO2), which is used to electrolyze water molecules to generate hydroxyl radicals, the two UV photocatalytic lamps can be switched between a first position and a second position, and a switching component is connected to one side of the UV photocatalytic lamp to drive it to switch positions, when the UV photocatalytic lamp is in the first position, it is inside the partitioned cabin; when the UV photocatalytic lamp is in the second position, it is outside the partitioned cabin, in addition, a cleaning component is arranged inside the partitioned cabin for cleaning the surface of the UV photocatalytic lamp in the first position;

[0008] Further, the atomizing device comprises a liquid storage tank, a liquid transfer pump, a water pressure gun and a bionic flow controller, the bionic flow controller is sleeved on the nozzle of the water pressure gun, the input end of the water pressure gun is communicated with a water pipe, the end of the water pipe away from the water pressure gun is communicated with the output end of the liquid transfer pump, the liquid transfer pump is arranged in the liquid storage tank, and the liquid storage tank stores plant extract inside, and one side of the liquid storage tank is fixedly connected with the A processing box.

[0009] Further, the bionic flow controller is made according to the principle of plant guard cell controlling the opening and closing of stomata, which is welded by two memory metal strips with different thermal expansion coefficients. The bionic flow controller simulates the process of plant guard cell opening and closing the stomata for respiration by the difference of thermal expansion coefficients of different memory metal materials, and realizes the temperature sensing automatic on-off control function by the non-uniform deformation when heated. When the ambient temperature rises, the A memory metal strip near the middle position expands more than the B memory metal strip near the two sides, so that the bimetallic strip bends to the two sides, and then a gap is formed in the middle position, and the nozzle is opened. When the ambient temperature decreases, the two memory metal strips return to the initial state, and the nozzle is closed again.

[0010] Further, the low-temperature plasma filtering device comprises a plurality of anode cylinders, the length direction of the plurality of anode cylinders is parallel to the axis of the B gas pipe, the plurality of anode cylinders are uniformly arranged in the B treatment box, and one side of each anode cylinder is connected to the inner wall of the B treatment box through an insulator. One side of each anode cylinder is provided with a cathode needle, one end of the cathode needle is inserted into the anode cylinder, and the other end of the cathode needle is connected to the inner wall of the B treatment box through an insulator.

[0011] Further, the filter element comprises an active alumina filter sheet, an active biological carbon filter sheet and a ceramsite filter sheet, and the active alumina filter sheet, the active biological carbon filter sheet and the ceramsite filter sheet can be detachably installed on the inner wall of the B gas pipe.

[0012] Further, the ultrasonic wave generating assembly comprises a sound sensor, an electric signal converter tube, an ultrasonic wave generator, a sound wave conducting tube and a sound wave amplifier, and the sound sensor, the electric signal converter tube, the ultrasonic wave generator, the sound wave conducting tube and the sound wave amplifier are fixedly installed on the A treatment box. The sound sensor is electrically connected to the electric signal converter, the electric signal converter is electrically connected to the ultrasonic wave generator, the ultrasonic wave generator is electrically connected to the sound wave conducting tube, and the sound wave conducting tube is electrically connected to the sound wave amplifier.

[0013] Further, the switching assembly comprises a mounting frame, two UV photocatalytic lamps are symmetrically installed on the mounting frame, an opening capable of accommodating the mounting frame is formed in the bottom of the separation cabin, a moving frame is rotatably connected to one side of the mounting frame through a rotating shaft, and a driving assembly for driving the mounting frame to rotate around the axis of the rotating shaft is connected to one side of the mounting frame. A first telescopic driving member is connected to one side of the moving frame for driving the moving frame to move in a direction perpendicular to the surface of the bottom of the separation cabin.

[0014] Further, the driving assembly comprises a gear, the gear is sleeved outside the rotating shaft, a rack is engaged with one side of the gear, and a second telescopic driving member is connected to the top end of the rack for driving the rack to move along the length direction of the rack.

[0015] Further, the cleaning assembly comprises a sliding block arranged in the partitioned cabin, one side of the sliding block is slidably connected with the inner wall of the partitioned cabin, a screw rod is threadedly connected with one side of the sliding block, one end of the screw rod is rotatably connected with the inner wall of the partitioned cabin, the other end of the screw rod is connected with a rotary driving member for driving the screw rod to rotate around the axis of the screw rod, and a wiping member is fixedly arranged on one side of the sliding block.

[0016] Further, the wiping member is a sponge.

[0017] Compared with the prior art, the waste gas purification device based on plant extract liquid atomization and bionic controller provided by the present application can greatly increase the contact area of the plant extract liquid and impurities in the air by using ultrasonic atomization technology to convert the plant extract liquid into ion-shaped minimum particles, and can block the free radical chain reaction and reduce the potential harm to the environment and organisms by using the oxidation of specific components in the plant extract liquid to oxidize the free radicals generated by active nitrogen oxides, thereby achieving effective removal of nitrogen dioxide and the like and further improving the air purification effect.

[0018] By combining ultrasonic atomization, low-temperature plasma filtration and UV photocatalysis technologies, a multi-level purification system is formed, which can effectively remove various pollutants such as organic matter, particulate matter, microorganisms and nitrogen oxides in waste gas, and effectively improve the purification effect of the device.

[0019] By setting the low-temperature plasma filtration device, the charged plasma is generated by the electric field, and the particulate matter in the waste gas is precipitated by oxidation and decomposition chemical reactions, and the gas molecule thermal motion is reduced, thereby increasing the reaction time of liquid-gas and improving the purification effect.

[0020] By setting two UV photocatalytic lamps, the hydroxyl radicals generated by high-energy electrolysis and the alpha-pinene and 1-p-menthene-4-alcohol in the plant extract liquid are used to oxidize nitrogen oxides, and the positive and negative oxygen ion generators are further used to promote photolysis reaction, thereby enhancing the oxidation capacity and converting nitrogen oxides into nitrogen and oxygen atoms, and realizing deep purification.

[0021] By setting the bionic flow controller, the different deformation characteristics of the bimetallic strip caused by heating are used to promote the different deformation degrees of the rubber sleeves around the two memory metal strips by the high temperature of the waste gas, the A memory metal strip near the middle position has a larger expansion coefficient than the B memory metal strip near the two sides, so that the bimetallic strip bends to the side of the B memory metal strip, and the output end of the water pressure gun is opened, thereby realizing automatic temperature sensing and flow adjustment, improving resource utilization efficiency, and ensuring reasonable and effective injection of the plant extract liquid.

[0022] By setting the switching assembly and the cleaning assembly of the two UV photocatalytic lamps, automatic cleaning of the surface of the UV photocatalytic lamp is realized, the problems of reduced light transmission and scattering caused by impurities are avoided, the service life of the equipment is prolonged, and long-term stable purification effect is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0024] Figure 1 The first partial cross-sectional structure schematic diagram provided for the embodiment of the present application;

[0025] Figure 2 The side view structure schematic diagram provided for the embodiment of the present application;

[0026] Figure 3 The second partial cross-sectional structure schematic diagram provided for the embodiment of the present application;

[0027] Figure 4 The A enlarged schematic diagram in the Figure 3 provided for the embodiment of the present application;

[0028] Figure 5 The A processing box external three-dimensional structure schematic diagram provided for the embodiment of the present application;

[0029] Figure 6 The third partial cross-sectional structure schematic diagram provided for the embodiment of the present application;

[0030] Figure 7 The combination schematic diagram of the separation cabin, the UV photocatalytic lamp, the switching assembly and the cleaning assembly provided for the embodiment of the present application;

[0031] Figure 8 The combination schematic diagram of the UV photocatalytic lamp, the mounting frame, the moving frame and the gear provided for the embodiment of the present application;

[0032] Figure 9 The top view schematic diagram of the bionic flow controller in closed state provided for the embodiment of the present application;

[0033] Figure 10 The B enlarged schematic diagram in the Figure 9 provided for the embodiment of the present application;

[0034] Figure 11 The top view schematic diagram of the bionic flow controller in open state provided for the embodiment of the present application;

[0035] Figure 12 A schematic view of the water pressure gun and the bionic flow controller in a closed state provided by an embodiment of the present application is shown in FIG. 6. Figure 11 A schematic view of the water pressure gun and the bionic flow controller in a closed state provided by an embodiment of the present application is shown in FIG. 6.

[0036] Figure 13 A schematic view of the water pressure gun and the bionic flow controller in a closed state provided by an embodiment of the present application is shown in FIG. 6.

[0037] Figure 14 A schematic view of the water pressure gun and the bionic flow controller in a closed state provided by an embodiment of the present application is shown in FIG. 6. Figure 13 A schematic view of the water pressure gun and the bionic flow controller in a closed state provided by an embodiment of the present application is shown in FIG. 6.

[0038] Figure 15 A schematic view of the water pressure gun and the bionic flow controller in a closed state provided by an embodiment of the present application is shown in FIG. 6.

[0039] Figure 16 A schematic view of the water pressure gun and the bionic flow controller in a closed state provided by an embodiment of the present application is shown in FIG. 6. Figure 15 A schematic view of the water pressure gun and the bionic flow controller in a closed state provided by an embodiment of the present application is shown in FIG. 6.

[0040] Explanation of reference signs:

[0041] 1, A processing box; 2, a liquid collecting pool; 3, an ultrasonic wave generating assembly; 31, a sound sensor; 32, an electric signal converter; 33, an ultrasonic wave generator; 34, a sound wave conducting pipe; 35, a sound wave amplifier; 4, an A air pipe; 5, a B processing box; 6, a low-temperature plasma filtering device; 61, an anode cylinder; 62, a cathode needle; 7, a B air pipe; 8, an atomizing device; 80, a liquid storage tank; 81, a water pressure gun; 811, a cover; 82, a water pipe; 83, a liquid delivery pump; 84, a bionic flow controller; 841, an A memory metal strip with a larger coefficient of thermal expansion; 842, a B memory metal strip with a smaller coefficient of thermal expansion; 843, a rubber sleeve; 9, a secondary processing mechanism; 91, a partition cabin; 92, a positive and negative oxygen ion generator; 93, a UV photocatalytic lamp; 94, a switching assembly; 941, a mounting frame; 942, a moving frame; 943, a driving assembly; 9431, a gear; 9432, a rack; 9433, a B telescopic driving member; 944, an A telescopic driving member; 95, a cleaning assembly; 951, a sliding block; 952, a screw rod; 953, a rotary driving member; 954, a wiping member; 10, a filtering member; 101, an active alumina filter sheet; 102, an active biological carbon filter sheet; 103, a ceramsite filter sheet; 11, an air outlet. DETAILED DESCRIPTION

[0042] In order to make the technical personnel in the art better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings.

[0043] Please refer to Figures 1 to 16The utility model provides a kind of waste gas purification device based on plant extract liquid atomization and biomimetic controller, including A processing box 1, A processing box 1 side is provided with air outlet 11, and treated air is discharged from air outlet 11, A processing box 1 inner chamber bottom is provided with liquid collection tank 2, and liquid collection tank 2 top is provided with ultrasonic wave generating component 3, and liquid collection tank 2 upper end one side is communicated with A air pipe 4, and A air pipe 4 one end is communicated with B processing box 5, and B processing box 5 is provided with low-temperature plasma filter device 6 inside, and B processing box 5 one side is communicated with B air pipe 7;

[0044] A processing box 1 inside and located at the top of liquid collection tank 2 position is provided with atomization device 8, for spraying misty plant extract liquid to the end of A air pipe 4 located at one side of A processing box 1.Atomization device 8 is provided with biomimetic flow controller 84.Biomimetic flow controller 84 adjusts the size of flow by the uneven deformation of two different memory metals when heated.When the speed of car increases, the heat generated by engine work increases, and the exhaust emission also increases, at this time, more plant extract liquid needs to be sprayed to purify exhaust gas.When exhaust gas increases, the heat carried by it increases, and the temperature rises, and the two metal strips perceive the high temperature change and then unevenly deform, wherein the A memory metal strip 841 close to the middle position has greater thermal expansion coefficient than the B memory metal strip 842 close to both sides, so that the two memory metal strips press and bend the rubber sleeve 843 on both sides, open the nozzle of water pressure gun 81, and realize automatic temperature control.And, it can adjust the opening degree of nozzle according to the different temperatures transmitted by different concentration gases, to control the size of flow.When the ambient temperature decreases, the two metal strips return to original state, and the nozzle is closed again.

[0045] The liquid delivered by the infusion pump 83 of atomization device 8 is mixed plant extract liquid of turpentine oil, tea tree oil, xanthan gum and water, and the concentration is set between one thousandth and one percent.The specific production process is as follows: first, 10ml xanthan gum is added to deionized water, and gently stirred and heated to mild (about 50-60 DEG C), until it is completely dissolved, to form a uniform colloid.Then, while stirring, take equal amounts of 40ml turpentine oil and 40ml tea tree oil, gradually add to the already dissolved colloid solution, and ensure that the ingredients are fully mixed.After that, use ultrasonic instrument to ultrasonically treat the mixed liquid (about 30 minutes), to promote the full mixing of ingredients and form stable emulsion.Finally, cool the mixed liquid to room temperature, and transfer to clean, dry container, seal and store, to avoid the influence of light and high temperature on the stability of ingredients.Before use, gently shake or stir the mixed liquid, to ensure uniform distribution of ingredients.

[0046] In the process of mist injection, the thickening property of xanthan gum helps to keep the stability and uniformity of droplets, and it has the function of adsorbing PM particles, which can fully contact and adhere to impurities in the exhaust gas, and then settle in the liquid pool 2 by gravity, thereby realizing effective removal of particulate matter in the gas. The high proportion of α-pinene in turpentine oil and 1-p-menthene-4-al in tea tree oil can provide strong antioxidant and free radical scavenging ability, while deodorizing and sterilizing, it can also oxidize the free radicals generated by nitrogen oxides (such as nitrogen dioxide, nitric oxide, etc.) in the exhaust gas, block the free radical chain reaction, thereby reducing the potential harm to the environment and organisms, achieving the effect of removing nitrogen dioxide, etc., and improving the air purification benefit;

[0047] The total reaction equation of the plant extract solution when reacting with the exhaust gas is as follows:

[0048] C 10 H 18 O+2NO2→C 10 H 16 O+2NO+H2O;

[0049] NO2 is decomposed to generate NO and free radicals:

[0050] NO2→NO+·O;

[0051] Reaction with free radicals:

[0052] C 10 H 18 O+·O→C 10 H 17 ·0+H20;

[0053] Further reaction with nitrogen dioxide:

[0054] C 10 H 17 O+NO2→C 10 H 16 O+NO;

[0055] By setting the ultrasonic wave generating assembly 3, sound waves are generated to vibrate, and the plant extract solution is refined into ionic droplets with a larger specific surface area, and through the setting of the low-temperature plasma filtering device 6, the thermal motion of the exhaust gas is slowed down, and the flow speed is reduced, thereby increasing the effective contact between the plant extract solution and the exhaust gas, and prolonging the reaction time;

[0056] Inside the A treatment box 1, a secondary treatment mechanism 9 is arranged near one side of the A air pipe 4, which includes a partition cabin 91 and a positive and negative oxygen ion generator 92 fixedly installed on the inner wall of the A treatment box 1, and the top of the positive and negative oxygen ion generator 92 is equipped with two UV photocatalytic lamps 93. Under the irradiation of the UV photocatalytic lamp 93 made of titanium dioxide, water molecules are electrolyzed into hydrogen radical, which reacts with alpha-pinene in turpentine oil to convert into harmless nitrogen and oxygen molecules. In addition, the UV photocatalysis generates positive and negative oxygen ions (O + 、O – ) by irradiating the positive and negative oxygen ion generator 92 with ultraviolet rays, and excites the electronic transition of the reactant molecules to a high-energy state, thereby increasing the reaction activity. These active ions further oxidize and decompose nitrogen monoxide (NO) and nitrogen dioxide (NO2) to generate nitrogen radicals (·N) and oxygen radicals (·O), enhancing the reaction efficiency of the plant extract and nitrogen oxides, thereby improving the overall purification effect;

[0057] At the same time, the UV photocatalytic lamp 93 can be switched between a first position and a second position, and the UV photocatalytic lamp 93 is connected with a switching assembly 94 for driving the position switching, when the UV photocatalytic lamp 93 is in the first position, it is inside the partition cabin 91, and when the UV photocatalytic lamp 93 is in the second position, it is outside the partition cabin 91, and the partition cabin 91 is provided with a cleaning assembly 95 for cleaning the surface of the UV photocatalytic lamp 93 in the first position;

[0058] In an embodiment of the present application, the low-temperature plasma filtering device 6 includes a plurality of anode cylinders 61, the length direction of the plurality of anode cylinders 61 is parallel to the axis of the B air pipe 7, the plurality of anode cylinders 61 are uniformly arranged inside the B treatment box 5, and one side of each of the plurality of anode cylinders 61 is connected with the inner wall of the B treatment box 5 through an insulator, and one side of each of the plurality of anode cylinders 61 is provided with a cathode needle 62, one end of the cathode needle 62 is inserted into the anode cylinder 61, and the other end of the cathode needle 62 is connected with the inner wall of the B treatment box 5 through an insulator;

[0059] The anode cylinder 61 provides positive charge, forms the anode required by the plasma, and ensures the insulation between the anode cylinder 61 and the B treatment box 5 to prevent current leakage, and the cathode needle 62 provides negative charge, forms the cathode required by the plasma, and applies voltage through a high-voltage power supply when dust removal is performed, the anode cylinder 61 provides positive charge, the cathode needle 62 provides negative charge, and an electric field is formed. Under the action of the electric field, the electrons in the gas are accelerated and interact with the gas molecules, reducing the diffusion motion of the gas.

[0060] In an embodiment of the present application, the filter 10 comprises an active alumina filter sheet 101, an active biological carbon filter sheet 102 and a ceramsite filter sheet 103, all of which are detachably mounted on the inner wall of the B air pipe 7.

[0061] The active alumina filter sheet 101 removes organic matter, odors and other pollutants in the gas through redox reactions and chemical adsorption, etc., has a large specific surface area and active sites, and can effectively adsorb and catalyze harmful substances in the gas. The active biological carbon filter sheet 102 is a filter material that removes organic matter and odors in the gas through biodegradation and adsorption. The microorganisms and biofilm in the active biological carbon filter sheet 102 can degrade organic matter, and the activated carbon has strong adsorption performance, which can effectively remove odors in the gas. The ceramsite filter sheet 103 is a filter material that removes particulate matter and solid particles in the gas through physical adsorption and screening. The surface structure and pores of the ceramsite filter sheet 103 can effectively capture and filter particulate matter in the gas, purify the airflow. Through the combined action of the active alumina filter sheet 101, the active biological carbon filter sheet 102 and the ceramsite filter sheet 103, the organic matter, odors and particulate matter and other pollutants in the gas are removed, achieving purification and filtration of the gas and improving air quality.

[0062] In an embodiment of the present application, the ultrasonic wave generating assembly 3 comprises a sound sensor 31, an electrical signal converter 32, an ultrasonic wave generator 33, a sound wave conducting pipe 34 and a sound wave amplifier 35, all of which are fixedly mounted on the A processing box 1. The sound sensor 31 is electrically connected to the electrical signal converter 32. The electrical signal converter 32 is electrically connected to the ultrasonic wave generator 33. The ultrasonic wave generator 33 is electrically connected to the sound wave conducting pipe 34. The sound wave conducting pipe 34 is electrically connected to the sound wave amplifier 35.

[0063] In use, the device can be installed on a vehicle to move the device by the vehicle to purify the air. When the sound sensor 31 detects the sound signal in the environment, it converts the sound signal into a sound wave signal and transmits it to the electrical signal converter 32. The electrical signal converter 32 converts the sound wave signal into an electrical signal required by the ultrasonic wave generator 33 to drive the ultrasonic wave generator 33 to generate an ultrasonic wave signal. The sound wave conducting pipe 34 and the sound wave amplifier 35 ensure the transmission and amplification of the sound wave signal, thereby realizing the generation and propagation of ultrasonic waves.

[0064] The sound sensor 31 is a key component in the ultrasonic wave generating assembly 3, mainly responsible for converting the input sound into a sound wave signal. It is connected with the electric signal converter 32 to convert the sound wave into an electric signal that can be recognized by the ultrasonic wave generator 33. The ultrasonic wave generator 33 is the core component of the ultrasonic wave technology, which receives the electric signal from the electric signal converter 32 and converts these tiny electric signals into high-frequency sound waves (ultrasonic waves) through the internal frequency conversion transducer (usually a piezoelectric crystal). Subsequently, these ultrasonic waves are directed to the sound wave amplifier 35 through the sound wave conducting pipe 34, further amplifying the sound wave signal and converting it into an ultrasonic wave signal of different intensity. In addition, the ultrasonic wave generator 33 can also adjust the frequency, power and waveform of the ultrasonic wave to meet different application requirements.

[0065] In one embodiment of the present application, the atomizing device 8 comprises a liquid storage tank 80, a water pressure gun 81 and a liquid delivery pump 83. The input end of the water pressure gun 81 is connected with a water pipe 82, the end of the water pipe 82 away from the water pressure gun 81 is connected with the output end of the liquid delivery pump 83, the liquid delivery pump 83 is arranged in the liquid storage tank 80, and the inside of the liquid storage tank 80 stores plant extract liquid. One side of the liquid storage tank 80 is fixedly connected with the A treatment tank 1. The water pressure gun 81 beats the plant extract liquid into the smallest particles in ionic form, and the dense contact area of the small particle-shaped plant extract liquid fully contacts and adheres to impurities in the air, and then falls into the liquid collecting tank 2 by gravity;

[0066] At the same time, the bionic flow controller 84 sleeved on the output end of the water pressure gun 81 is used to adjust the flow size. The bionic flow controller 84 comprises a rubber sleeve 843 and two groups of bimetallic strips. The water pressure gun 81 is provided with a cover 811 which is detachably installed on the water pressure gun 81. The rubber sleeve 843 is adhered to the bottom of the cover 811. The cover 811 is provided with a hollow. Each group of bimetallic strips is composed of an A memory metal strip 841 with a large thermal expansion coefficient and a B memory metal strip 842 with a small thermal expansion coefficient. The A memory metal strip 841 with a large thermal expansion coefficient and the B memory metal strip 842 with a small thermal expansion coefficient are tightly welded together to form a bimetallic strip;

[0067] The A memory metal strip 841 with a large thermal expansion coefficient and the B memory metal strip 842 with a small thermal expansion coefficient are welded on the hollowed-out side wall of the cover 811. By simulating the working principle of the stomata of plant leaves, the control of the nozzle switch is realized. When the tail gas enters the inside of the A treatment box 1, the temperature in the A treatment box 1 rises, the high temperature transmitted causes the bimetallic strip to produce uneven deformation, the bimetallic strip bends towards the side with a small thermal expansion coefficient, the two metal strips move away from each other, and the nozzle is opened, thereby increasing the spraying flow. When no tail gas passes through, the temperature in the A treatment box 1 decreases to the normal level, the two memory metals return to the original state, and the output end of the water pressure gun 81 is closed. This control mechanism realizes automatic induction, that is, it does not need external power supply or a complex control system to operate, and completely relies on the change of the ambient temperature and the different thermal physical properties of the bimetallic strip to automatically adjust the flow, and improves the precision control level of the flow, thereby improving the resource utilization efficiency.

[0068] Since the atomization device 8 beats the plant extract into the smallest particles in the ion form, the plant extract particles may be attached to the surface of the UV photocatalytic lamp 93, and after long-time use, impurity layers are easily formed on the surface of the UV photocatalytic lamp 93, which reduces the light transmission and scattering of the UV photocatalytic lamp 93, and further reduces the photo-oxidation catalysis effect on the exhaust gas. Therefore, two UV photocatalytic lamps 93 are arranged, the positions of the two UV photocatalytic lamps 93 are switched by the switching assembly 94, and when the UV photocatalytic lamp 93 is in the first position, the cleaning assembly 95 cleans the surface of the UV photocatalytic lamp 93, so that the plant extract particles are not attached to the surface of the UV photocatalytic lamp 93, and after long-time use, impurity layers are not easily formed on the surface of the UV photocatalytic lamp 93, which reduces the light transmission and scattering of the UV photocatalytic lamp 93.

[0069] In an embodiment of the present application, the switching assembly 94 includes a mounting frame 941, two UV photocatalytic lamps 93 are symmetrically mounted on the mounting frame 941, the UV photocatalytic lamp 93 is fixedly connected with the mounting frame 941, an opening capable of accommodating the mounting frame 941 to pass through is arranged at the bottom of the separation cabin 91, a moving frame 942 is rotatably connected to one side of the mounting frame 941 through a rotating shaft, a driving assembly 943 is connected to one side of the mounting frame 941 and drives the mounting frame 941 to rotate around the axis of the rotating shaft, and an A telescopic driving piece 944 is connected to one side of the moving frame 942 and drives the moving frame 942 to move in a direction perpendicular to the surface of the bottom of the separation cabin 91.

[0070] In an embodiment of the present application, the A telescopic driving piece 944 is a telescopic cylinder, the moving end of the A telescopic driving piece 944 is fixedly installed on the A treatment box 1, and the moving end of the A telescopic driving piece 944 is fixedly connected with the moving frame 942.

[0071] In one of the embodiments of the present application, the driving assembly 943 comprises a gear 9431 sleeved outside the rotating shaft, one side of the gear 9431 is engaged with a rack 9432, and the top end of the rack 9432 is connected with a B telescopic driving member 9433 for driving the rack 9432 to move along the length direction of the rack 9432;

[0072] In one of the embodiments of the present application, the B telescopic driving member 9433 is a telescopic cylinder, the B telescopic driving member 9433 is fixedly installed on the A processing box 1, and the moving end of the B telescopic driving member 9433 is fixedly connected with the rack 9432;

[0073] The moving frame 942 is driven by the A telescopic driving member 944 to move, the moving frame 942 drives the UV photocatalyst lamp 93 to move into or out of the partition cabin 91 through the mounting frame 941, and the rack 9432 is driven by the B telescopic driving member 9433 to move to drive the gear 9431 to rotate, so as to switch the positions of the two UV photocatalyst lamps 93.

[0074] In one of the embodiments of the present application, the cleaning assembly 95 comprises a sliding block 951 arranged inside the partition cabin 91, one side of the sliding block 951 is slidably connected with the inner wall of the partition cabin 91, one side of the sliding block 951 is threadedly connected with a screw rod 952, one end of the screw rod 952 is rotatably connected with the inner wall of the partition cabin 91, the other end of the screw rod 952 is connected with a rotary driving member 953 for driving the screw rod 952 to rotate around the axis line thereof, and a wiping member 954 is fixedly installed on one side of the sliding block 951;

[0075] In one of the embodiments of the present application, the rotary driving member 953 is an electric motor, the rotary driving member 953 is fixedly installed inside the partition cabin 91, and the output shaft end of the rotary driving member 953 is fixedly connected with the screw rod 952;

[0076] In one of the embodiments of the present application, the wiping member 954 is a sponge;

[0077] The screw rod 952 is driven by the rotary driving member 953 to rotate, the sliding block 951 is driven by the screw rod 952 to move when the screw rod 952 rotates, the sliding block 951 is driven by the screw rod 952 to move, and the wiping member 954 is driven by the sliding block 951 to move, so as to wipe the surface of the UV photocatalyst lamp 93.

[0078] The present application uses ultrasonic atomization technology to shake the plant extract into smaller ionic particles, greatly increases the contact area between the plant extract and impurities in the air, and uses the oxidation of 1-p-menthene-4-ol and alpha-pinene in the plant extract to oxidize the free radicals generated by active nitrogen oxides, so as to block the free radical chain reaction and reduce the potential harm to the environment and organisms, thereby achieving effective removal of nitrogen dioxide and the like;

[0079] By means of the cooperation of ultrasonic atomization, low-temperature plasma filtration and UV photocatalysis, a multi-level purification system is formed, which can effectively remove various pollutants such as organic matter, particulate matter, microorganisms and nitrogen oxides in the exhaust gas, and effectively improve the purification effect of the device.

[0080] By setting the low-temperature plasma filtration device 6, charged plasma is generated by the action of an electric field. Under the acceleration of the electric field, the electrons and molecules in the gas interact with each other, thereby effectively slowing down the diffusion motion of the gas, prolonging the reaction time for the subsequent process;

[0081] By setting the ultrasonic generator 33, the plant extract is vibrated into small ionic particles by ultrasonic vibration, thereby increasing the contact area between the plant extract and the PM particulate matter and nitrogen oxides in the exhaust gas, and making them fully react;

[0082] By setting the UV photocatalytic lamp 93, hydroxyl radicals are generated by electrolysis and react with alpha-pinene in turpentine oil to promote efficient oxidation of nitrogen oxides and convert them into harmless substances. Subsequently, in combination with the positive and negative oxygen ion generator 92, under the active action of electron transition caused by ultraviolet energy and positive and negative oxygen ion reaction, the nitrogen monoxide (NO) and nitrogen dioxide (NO2) in the exhaust gas are further oxidized and decomposed to generate nitrogen radicals (·N) and oxygen radicals (·O), thereby enhancing the reaction efficiency of the plant extract and nitrogen oxides per unit time, and achieving deep and efficient exhaust gas purification effect;

[0083] By setting the bionic flow controller 84, the two metal strips are deformed differently due to the characteristics of the heating, and the high temperature transmitted by the exhaust gas promotes the compression of the rubber around the two memory metals to produce different degrees of deformation. The metal strip A with a larger expansion coefficient will expand more than the metal strip B with a smaller expansion coefficient, thereby causing the two memory metal strips to bend towards the metal strip B side, opening the output end of the water pressure gun 81, thereby realizing automatic temperature sensing and adjusting the flow size, improving resource utilization efficiency, and ensuring reasonable and effective injection of the plant extract;

[0084] By setting two UV photocatalytic lamps 93 and equipping with switching components 94 and cleaning components 95, automatic cleaning of the surface of the UV photocatalytic lamp 93 is realized, avoiding the problem of reduced light transmission and scattering caused by impurities, prolonging the service life of the equipment, and ensuring long-term stable purification effect.

[0085] The foregoing merely illustrates some exemplary embodiments of the application, and no doubt numerous modifications and alterations thereto will be apparent to those skilled in the art. Accordingly, the above description is intended for purposes of illustration only and should not be construed as limiting the scope of the application.

Claims

1. A plant extract liquid based misting and biomimetic controller based exhaust gas purification device, characterized by, The utility model provides a kind of plant extraction liquid processing device, including A processing box (1), the bottom of the cavity of A processing box (1) is provided with liquid collecting tank (2), the top of liquid collecting tank (2) is provided with ultrasonic wave generating assembly (3), one side of the upper end of liquid collecting tank (2) is communicated with A gas pipe (4), one end of A gas pipe (4) is communicated with B processing box (5), B processing box (5) is provided with low-temperature plasma filter device (6) inside, one side of B processing box (5) is communicated with B gas pipe (7); Atomization device (8) is arranged in A processing box (1) and at the top of liquid collecting tank (2), and atomization device (8) includes liquid storage tank (80), water pressure gun (81), water pipe (82), infusion pump (83) and bionic flow controller (84), the output end of water pressure gun (81) is sleeved with bionic flow controller (84), the input end is communicated with water pipe (82), the end away from water pressure gun (81) of water pipe (82) is communicated with the output end of infusion pump (83), infusion pump (83) is arranged in liquid storage tank (80), and the inside of liquid storage tank (80) is stored with plant extraction liquid, one side of liquid storage tank (80) is fixedly connected with A processing box (1);Bionic flow controller (84) includes A memory metal strip (841) with larger thermal expansion coefficient, B memory metal strip (842) with smaller thermal expansion coefficient and rubber sleeve (843), the output port of water pressure gun (81) is nested with rubber sleeve (843), and two A memory metal strips (841) with larger thermal expansion coefficient and two B memory metal strips (842) with smaller thermal expansion coefficient are covered therein, the A memory metal strip (841) with larger thermal expansion coefficient is wider and closer to the middle, the B memory metal strip (842) with smaller thermal expansion coefficient is narrower and is located on the two sides of two A memory metal strips, and the two ends of the four metal strips are welded on the inner wall of the output end of water pressure gun (81), so as to fix the position;Atomization device (8) is used to spray misty plant extraction liquid to the end of A gas pipe (4) on the side of A processing box (1); Secondary processing mechanism (9) is arranged in A processing box (1) and close to one side of A gas pipe (4), and secondary processing mechanism (9) includes separation cabin (91) and positive and negative oxygen ion generator (92) fixedly installed on the inner wall of A processing box (1), two UV photocatalytic lamps (93) are arranged on the top of positive and negative oxygen ion generator (92), UV photocatalytic lamp (93) can be switched between first position and second position, UV photocatalytic lamp (93) is connected with switching assembly (94) for driving it to switch position, when UV photocatalytic lamp (93) is in first position, it is in the inside of separation cabin (91), when UV photocatalytic lamp (93) is in second position, it is in the outside of separation cabin (91), cleaning assembly (95) is arranged in the inside of separation cabin (91) for cleaning the surface of UV photocatalytic lamp (93) in first position; Air outlet (11) is arranged on the side of A processing box (1).

2. The exhaust gas purification device based on plant extract atomization and biomimetic controller according to claim 1, characterized in that, The low-temperature plasma filtering device (6) comprises a plurality of anode cylinders (61), the length direction of the plurality of anode cylinders (61) is parallel to the axis of the B gas pipe (7), the plurality of anode cylinders (61) are uniformly arranged in the B treatment box (5), and one side of each of the plurality of anode cylinders (61) is connected to the inner wall of the B treatment box (5) through an insulator, one side of each of the plurality of anode cylinders (61) is provided with a cathode needle (62), one end of the cathode needle (62) is inserted into the anode cylinder (61), and the other end of the cathode needle (62) is connected to the inner wall of the B treatment box (5) through an insulator.

3. The exhaust gas purification device based on plant extract liquid atomization and bionic controller according to claim 1, characterized in that, The filtering element (10) comprises an active alumina filter sheet (101), an active biological carbon filter sheet (102) and a ceramsite filter sheet (103), and the active alumina filter sheet (101), the active biological carbon filter sheet (102) and the ceramsite filter sheet (103) are detachably installed on the inner wall of the B gas pipe (7).

4. The exhaust gas purification device based on plant extract liquid atomization and bionic controller according to claim 1, characterized in that, The ultrasonic wave generating assembly (3) comprises a sound sensor (31), an electric signal converter (32), an ultrasonic wave generator (33), a sound wave conducting pipe (34) and a sound wave amplifier (35), and the sound sensor (31), the electric signal converter (32), the ultrasonic wave generator (33), the sound wave conducting pipe (34) and the sound wave amplifier (35) are fixedly installed on the A treatment box (1), the sound sensor (31) is electrically connected to the electric signal converter (32), the electric signal converter (32) is electrically connected to the ultrasonic wave generator (33), the ultrasonic wave generator (33) is electrically connected to the sound wave conducting pipe (34), and the sound wave conducting pipe (34) is electrically connected to the sound wave amplifier (35).

5. The exhaust gas purification device based on plant extract liquid atomization and bionic controller according to claim 1, characterized in that, The switching assembly (94) comprises a mounting frame (941), two UV photocatalytic lamps (93) are symmetrically installed on the mounting frame (941), an opening capable of accommodating the mounting frame (941) to pass through is formed in the bottom of the separation cabin (91), a moving frame (942) is rotatably connected to one side of the mounting frame (941) through a rotating shaft, and a driving assembly (943) for driving the mounting frame (941) to rotate around the axis of the rotating shaft is connected to one side of the mounting frame (941), and a telescopic drive (944) for driving the moving frame (942) to move in a direction perpendicular to the bottom surface of the separation cabin (91) is connected to one side of the moving frame (942).

6. The exhaust gas purification device based on plant extract liquid atomization and bionic controller according to claim 5, characterized in that, The driving assembly (943) comprises a gear (9431) sleeved outside the rotating shaft, a rack (9432) engaged with one side of the gear (9431), and a telescopic drive (9433) for driving the rack (9432) to move along the length direction of the rack (9432) and connected to the top end of the rack (9432).

7. The exhaust gas purification device based on plant extract liquid atomization and bionic controller according to claim 1, characterized in that, The cleaning assembly (95) comprises a sliding block (951) arranged in the separation cabin (91), the sliding block (951) is slidably connected to the inner wall of the separation cabin (91) on one side, a screw rod (952) is threadedly connected to one side of the sliding block (951), one end of the screw rod (952) is rotatably connected to the inner wall of the separation cabin (91), a rotary drive (953) for driving the screw rod (952) to rotate around the axis thereof is connected to the other end of the screw rod (952), and a wiping element (954) is fixedly installed on one side of the sliding block (951).

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