Exhaust gas treatment component and fume hood including the component

Abstract

The present invention relates to the technical field of waste gas treatment, and discloses a waste gas treatment component and a fume hood including the component. The fume hood body includes a disinfection chamber. An intake pipe is provided on one side of the disinfection chamber, and the disinfection chamber is in communication with the intake pipe for sucking waste gas into the disinfection chamber for disinfection treatment. A circulation component is provided on the side of the disinfection chamber away from the intake pipe. The circulation component is used for sucking in or discharging waste gas. The suction device in the circulation component in the disinfection chamber is used to control the flow direction of the waste gas in the overall device. Then, by dynamically adjusting the movable plate, the kinetic energy of the harmful particulate matter in the waste gas is reduced, thereby achieving the purpose of generating dust reduction. Subsequently, the movable plate is adjusted again, and the rotary motor at its bottom is used to swing the atomizing device. When swinging, it will frequently contact the guiding plate, and the cooperation between the guiding plate and the movable plate is used to guide the air flow to perform backwashing on the movable nozzle on the atomizing device to achieve the cleaning effect.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, and particularly to a waste gas treatment component and a fume hood including the component. Background Art

[0002] With the rapid development of the education and technology industries, the scale of laboratories has significantly expanded, and the number of uses has gradually increased. At the same time, the pollutants generated in the laboratories have also had a certain impact on the environment. Relevant personnel in the field have gradually begun to pay attention to this phenomenon. To protect the health of personnel and the natural environment and laboratory environment from pollution while ensuring the smooth progress of teaching, scientific research and other activities, it is necessary to propose some methods for treating laboratory waste gas. Since all experiments generating gases must be carried out in a fume hood, necessary absorption treatment or protective measures must be taken for experiments generating a large amount of harmful gases.

[0003] Chinese Patent with application number 202223306235.2 discloses a laboratory organic waste gas treatment device, including an intake pipe. A connection assembly is provided at the left end of the intake pipe. A positioning block is provided at the inner end of the mounting plate. A support frame is provided at the inner end of the intake pipe. The right end of the intake pipe is connected to a housing. A balance frame is installed at the inner end of the support foot. A guiding plate is installed at the inner end of the housing. A discharge pipe is installed at the lower end of the guiding plate, and a valve is provided inside the discharge pipe. A connecting plate is installed at the inner end of the guiding plate, and an ultraviolet lamp is provided at the lower end of the connecting plate. An outlet pipe is provided at the right end of the housing, and a exhaust fan is connected to the right end of the outlet pipe. An activated carbon layer is installed at the inner end of the outlet pipe.

[0004] In the above prior art, it is found that when the concentration of the inhaled waste gas is too high, it means that there are more particles in the gas. At this time, the sprayed water mist cannot quickly absorb the particles in the waste gas from each other. This will not only cause the treated gas to still contain harmful substances and impurity particles, but also the surface of the activated carbon at the back will quickly absorb a large amount of harmful substances and become saturated, unable to adsorb the harmful substances in the subsequent gas, resulting in the escape of harmful gases. In addition, when the gas concentration is high, the harmful substances and impurities in the gas will adhere and accumulate on the surface of the ultraviolet lamp, causing the emitted ultraviolet light beam to be blocked, and thus unable to disinfect the harmful substances in the waste gas.

[0005] Therefore, it is necessary to solve the above problems through a waste gas treatment component and a fume hood including the component. Summary of the Invention

[0006] The purpose of the present invention is to provide a waste gas treatment component and a fume hood including the component to solve the problems raised in the above background art.

[0007] To achieve the above object, the present invention provides the following technical solution: A fume hood, comprising a fume hood main body, the fume hood main body includes a disinfection chamber, an air inlet pipe is provided on one side of the disinfection chamber, and the disinfection chamber is in communication with the air inlet pipe, for sucking waste gas into the disinfection chamber for disinfection treatment, a circulation component is provided on the side of the disinfection chamber away from the air inlet pipe, and the circulation component is used for sucking in or discharging the waste gas;

[0008] A treatment chamber is provided on the outer surface of the air inlet pipe close to the disinfection chamber, a buckle is provided on the outer side of the treatment chamber, and a fixing ring is movably provided inside the buckle, and a first connecting piece is provided inside the fixing ring, the inside of the first connecting piece is connected to the air inlet pipe, and a dust-proof net plate for filtering waste gas is provided at the connection between the first connecting piece and the air inlet pipe.

[0009] Preferably, the circulation component includes a second connecting piece, an air outlet pipe is provided on one side of the second connecting piece, a screen plate is provided on the inner wall of the second connecting piece close to the air outlet pipe, and a suction device is provided on the side of the screen plate away from the air outlet pipe;

[0010] The side of the second connecting piece away from the air outlet pipe is connected to the disinfection chamber, and an activated carbon plate is provided at the connection between the second connecting piece and the disinfection chamber, and the activated carbon plate is used for adsorbing toxic substances in the disinfected waste gas.

[0011] Preferably, a funnel is provided at the bottom of the disinfection chamber, the bottom of the disinfection chamber is in communication with the funnel, and a slag discharge pipe is provided on the side of the funnel away from the disinfection chamber, the slag discharge pipe is in communication with the inside of the funnel, and a valve is provided inside the slag discharge pipe, for controlling the discharge of toxic impurities in the slag discharge pipe to the outside.

[0012] Preferably, four symmetrically arranged support columns are provided at the bottom of the inner wall of the disinfection chamber, the top of each support column is provided with the same bottom plate, an electric control slide rail is provided on the upper surface of the bottom plate, and the number of the electric control slide rails is two, each of the electric control slide rails is mirror-symmetrically arranged above the bottom plate, and through holes are provided on the surface of the bottom plate.

[0013] Preferably, a protection plate for protecting the disinfection chamber is provided on the outer surface of the disinfection chamber, an observation plate for observing the gas disinfection situation is provided in the middle area of the protection plate, and the material of the observation plate is a light-transmitting glass material, and two support frames for support are mirror-symmetrically arranged at the bottom of the disinfection chamber, and anti-slip foot pads are provided on the side of the two support frames away from the disinfection chamber.

[0014] The present invention also provides an exhaust gas treatment assembly, including the fume hood and the exhaust gas treatment assembly described in any of the foregoing technical solutions. The exhaust gas treatment assembly is disposed inside the main body of the fume hood. The exhaust gas treatment assembly includes a second electromagnetic slider, and the second electromagnetic slider is disposed inside an electric control slide rail on a bottom plate. A connecting rod is movably disposed on the top of the second electromagnetic slider, and a movable plate is disposed on the outer surface of the connecting rod. A plurality of ultraviolet emitters are disposed on the surface of the movable plate;

[0015] On one side of the inner wall of the disinfection chamber in the main body of the fume hood close to the movable plate, there are two oppositely disposed flow guiding plates, and one side of the two flow guiding plates away from the disinfection chamber is in contact with the movable plate.

[0016] Preferably, the exhaust gas treatment assembly further includes an atomizing device. A water delivery pipe is disposed inside the atomizing device. The top of the water delivery pipe is connected to an external water source. A water through pipe is disposed on the outer side of the water delivery pipe. One end of the water through pipe away from the water delivery pipe is provided with a movable nozzle. The movable nozzle is communicated with the water through pipe. A compression spring is disposed on one side of the movable nozzle close to the atomizing device. The number of the compression springs is two. Each compression spring is symmetrically disposed on one side of the movable nozzle, and one end of each compression spring away from the movable nozzle is disposed on the outer surface of the atomizing device. Two adjusting plates for adjusting the atomizing angle are oppositely disposed on the surface of the atomizing device close to the movable nozzle.

[0017] Preferably, a driving motor is disposed on the outer side of the connecting rod close to the second electromagnetic slider, and the driving motor is used to control the rotation of the connecting rod;

[0018] The number of the connecting rods, the movable plates, the second electromagnetic sliders and the driving motors is all set to four. Each of the connecting rods, the movable plates, the second electromagnetic sliders and the driving motors is symmetrically disposed above the bottom plate. A rotating motor for controlling the rotation of each connecting rod is disposed at the end of each connecting rod close to each second electromagnetic slider.

[0019] Preferably, the number of the movable nozzles and the water through pipes is both set to three. Each of the movable nozzles and the water through pipes is circumferentially and arrayedly distributed on the outer surface of the atomizing device;

[0020] A first electromagnetic slider is disposed on the top of the water delivery pipe. The water delivery pipe is slidably connected to the top of the treatment chamber through the first electromagnetic slider. A micro motor is disposed on the outer surface of the water delivery pipe, and the output end of the micro motor is connected to the end of the water delivery pipe.

[0021] The technical effects and advantages of the present invention:

[0022] 1. Through the mutual cooperation of components such as four symmetrically arranged movable plates and second electromagnetic sliders, the present invention uses the suction device in the circulation component in the disinfection chamber to control the flow direction of the waste gas in the overall device. Then, by dynamically adjusting the movable plates, the kinetic energy of the harmful particulate matter in the waste gas is reduced, thereby achieving the purpose of dust reduction. Subsequently, the movable plates are adjusted again, and the rotary motor at the bottom is used to swing the atomization device. When swinging, it will frequently contact the guide plate, and the cooperation between the guide plate and the movable plate is used to guide the air flow to counterflush the movable nozzle on the atomization device to achieve the cleaning effect.

[0023] 2. Through the mutual cooperation of components such as the activated carbon plate, the present invention adjusts the rotation angles of two symmetrically arranged movable plates, and cooperates with the suction device in the circulation component to achieve the function of guiding the air flow direction. At the same time, the air pressure at the included angle of the two symmetrically arranged movable plates increases. At this time, the two symmetrically arranged movable plates are simultaneously controlled to rotate, thereby achieving the function of purging the surface of the activated carbon plate. At the same time, during the purging process, the ultraviolet rays emitted by the ultraviolet emitters on the movable plates are used to assist in desorbing the chemical toxic gases and chemical residues on its surface, increasing the service life of the activated carbon plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 is a front view of the overall structure of the present invention;

[0026] Figure 3 is a schematic diagram of the overall open state structure of the present invention;

[0027] Figure 4 is a schematic diagram of the atomization device and related structures of the present invention;

[0028] Figure 5 is Figure 3 an enlarged schematic diagram of part A in

[0029] Figure 6 is a schematic diagram of the state where the movable plates of the present invention are spliced to form a closed space area;

[0030] Figure 7 is a schematic diagram of the state where the movable plates of the present invention are spliced to form an increased air flow;

[0031] Figure 8 is a schematic diagram of the combined cleaning state of the movable plates of the present invention;

[0032] Figure 9 is a schematic diagram of the first state of the atomization device of the present invention for cleaning the movable plate;

[0033] Figure 10This is the second state schematic diagram of the movable plate cleaning by the atomization device of the present invention.

[0034] In the figure: 1. Fume hood main body; 101. Intake duct; 102. First connecting piece; 103. Dust-proof net plate; 104. Fixed ring; 105. Buckle piece; 106. Treatment chamber; 107. Disinfection chamber; 108. Bottom plate; 109. Slag discharge pipe; 110. Hopper; 111. Electric control slide rail; 112. Protection plate; 113. Support frame; 114. Observation plate; 2. Exhaust gas treatment component; 201. Atomization device; 202. Adjusting plate; 203. Movable plate; 204. Movable spray head; 205. Compression spring; 206. Water delivery pipe; 207. Micro motor; 208. First electromagnetic slider; 209. Second electromagnetic slider; 210. Driving motor; 211. Connecting rod; 3. Circulation component; 301. Air outlet duct; 302. Screen plate; 303. Suction device; 304. Activated carbon plate; 305. Second connecting piece. Specific embodiments

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] The present invention provides a fume hood as shown in Figures 1 to 10 which includes a fume hood main body 1. The fume hood main body 1 includes a disinfection chamber 107. An intake duct 101 is provided on one side of the disinfection chamber 107, and the disinfection chamber 107 is in communication with the intake duct 101 for sucking waste gas into the disinfection chamber 107 for disinfection treatment. A circulation component 3 is provided on the side of the disinfection chamber 107 away from the intake duct 101. The circulation component 3 is used for sucking in or discharging waste gas. A treatment chamber 106 is provided on the outer surface of the intake duct 101 close to the disinfection chamber 107. A buckle piece 105 is provided on the outside of the treatment chamber 106, and a fixed ring 104 is movably provided inside the buckle piece 105. A connecting piece is provided inside the inner diameter of the fixed ring 104, and the inside of the connecting piece is connected to the intake duct 101. A dust-proof net plate 103 for filtering waste gas is provided at the connection between the first connecting piece 102 and the intake duct 101.

[0037] As shown in Figure 3As shown in the figure, the circulating component 3 includes a second connecting member 305. An air outlet pipe 301 is provided on one side of the second connecting member 305. A screen plate 302 is provided on the inner wall of the second connecting member 305 close to the air outlet pipe 301. An air suction device 303 is provided on the side of the screen plate 302 away from the air outlet pipe 301. The side of the second connecting member 305 away from the air outlet pipe 301 is connected to the disinfection chamber 107. An activated carbon plate 304 is provided at the connection between the second connecting member 305 and the disinfection chamber 107. The activated carbon plate 304 is used to adsorb toxic substances in the exhaust gas after disinfection. During use, the exhaust gas after ultraviolet disinfection will pass through the activated carbon plate 304 and reach the screen plate 302, and then be discharged to the outside through the air outlet pipe 301. During this process, harmful impurities and toxic chemical gases in the gas will be inhaled into the activated carbon plate 304, so as to ensure that the gas discharged to the outside is non-toxic and avoid the leakage of poisonous gas or harmful substances. In addition, after the waste gas flows through the screen plate 302, the screen plate 302 intercepts the fine particles in the gas again to ensure that the overall quality of the discharged gas meets the discharge standard.

[0038] A funnel 110 is provided at the bottom of the disinfection chamber 107. The bottom of the disinfection chamber 107 is communicated with the funnel 110. A slag discharge pipe 109 is provided on the side of the funnel 110 away from the disinfection chamber 107. The slag discharge pipe 109 is internally communicated with the funnel 110. A valve is provided inside the slag discharge pipe 109 to control the discharge of toxic impurities in the slag discharge pipe 109 to the outside. Four symmetrically arranged support columns are provided at the bottom of the inner wall of the disinfection chamber 107. The top of each support column is provided with the same bottom plate 108. An electric control slide rail 111 is provided on the upper surface of the bottom plate 108. The number of electric control slide rails 111 is two, and each electric control slide rail 111 is mirror-symmetrically arranged above the bottom plate 108. Through holes are provided on the surface of the bottom plate 108. During use, the funnel 110 at the bottom of the disinfection chamber 107 smoothly discharges the particles after dust reduction in the disinfection chamber 107 into the funnel 110. Since the funnel 110 is communicated with the slag discharge pipe 109, the valve is used in cooperation to discharge the particles after dust reduction to the outside, avoiding the situation that the inside of the fume hood is polluted due to long-term accumulation in the disinfection chamber 107. In addition, the bottom plate 108 located in the disinfection chamber 107 is fixed inside the disinfection chamber 107 by four symmetrically arranged support columns at its bottom, so as to guide and collect the harmful particulate matter after atomization combination and finally discharge it into the funnel 110.

[0039] As Figures 1 - 3As shown in the figure, a protective plate 112 for protecting the disinfection and sterilization chamber 107 is provided on the outer surface of the disinfection and sterilization chamber 107. An observation plate 114 for observing the gas disinfection situation is provided in the middle area of the protective plate 112, and the material of the observation plate 114 is a light-transmitting glass material. Two supporting frames 113 for support are mirror-image arranged at the bottom of the disinfection and sterilization chamber 107, and anti-slip foot pads are provided on the side of the two supporting frames 113 away from the disinfection and sterilization chamber 107. During use, the observation plate 114 provided outside the disinfection and sterilization chamber 107 is used to observe the degree of waste gas treatment in the disinfection and sterilization chamber 107, and the treatment strategy can be adjusted in real time according to the combination of harmful particulate matter and water mist, so as to ensure that the quality of the gas after emission meets the standard of natural emission and avoid the escape of toxic gas.

[0040] As Figures 4 - 10 As shown in the figure, the waste gas treatment component 2 includes the fume hood of any of the foregoing technical solutions and the waste gas treatment component 2. The waste gas treatment component 2 is arranged inside the fume hood main body 1. The waste gas treatment component 2 includes a second electromagnetic slider 209, and the second electromagnetic slider 209 is arranged inside the electric control slide rail 111 on the bottom plate 108. A connecting rod 211 is movably arranged on the top of the second electromagnetic slider 209, and a movable plate 203 is arranged on the outer surface of the connecting rod 211. A plurality of ultraviolet emitters are arranged on the surface of the movable plate 203. On one side of the inner wall of the disinfection and sterilization chamber 107 in the fume hood main body 1 close to the movable plate 203, two oppositely arranged flow guiding plates are provided, and the sides of the two flow guiding plates away from the disinfection and sterilization chamber 107 are in contact with the movable plate 203. A driving motor 210 is arranged on the outer side of the connecting rod 211 close to the second electromagnetic slider 209, and the driving motor 210 is used to control the rotation of the connecting rod 211. The numbers of the connecting rod 211, the movable plate 203, the second electromagnetic slider 209 and the driving motor 210 are all set to four. Each connecting rod 211, movable plate 203, second electromagnetic slider 209 and driving motor 210 are symmetrically arranged above the bottom plate 108. A rotary motor for controlling the rotation of each connecting rod 211 is arranged at the end of each connecting rod 211 close to each second electromagnetic slider 209.

[0041] The waste gas treatment component 2 further includes an atomizing device 201. A water delivery pipe 206 is arranged inside the atomizing device 201. The top of the water delivery pipe 206 is connected to an external water source. A water passing pipe is arranged on the outer side of the water delivery pipe 206. One end of the water passing pipe away from the water delivery pipe 206 is provided with a movable nozzle 204. The movable nozzle 204 is communicated with the water passing pipe. A compression spring 205 is arranged on one side of the movable nozzle 204 close to the atomizing device 201. The number of compression springs 205 is two. Each compression spring 205 is symmetrically arranged on one side of the movable nozzle 204. One end of each compression spring 205 away from the movable nozzle 204 is arranged on the outer surface of the atomizing device 201. Two adjusting plates 202 for adjusting the atomizing angle are oppositely arranged on the surface of the atomizing device 201 close to the movable nozzle 204. The number of the movable nozzles 204 and the water passing pipes is three. Each movable nozzle 204 and the water passing pipe are circumferentially and arrayedly distributed on the outer surface of the atomizing device 201. A first electromagnetic slider 208 is arranged on the top of the water delivery pipe 206. The water delivery pipe 206 is slidably connected to the top of the treatment chamber 106 through the first electromagnetic slider 208. A micro motor 207 is arranged on the outer surface of the water delivery pipe 206. The output end of the micro motor 207 is connected to the end of the water delivery pipe 206. During use, the first connecting piece 102 is used to connect with the waste gas source. Then, the waste gas in the air inlet passage is inhaled through the blowing device in the circulation component 3. Then, the atomizing device 201 is used to compress the water source in the water delivery pipe 206 and spray it to the outside. At the same time, the cooperation between the first electromagnetic slider 208 and the treatment chamber 106 is controlled to make the atomizing device 201 move along the top of the treatment chamber 106 towards the direction of the movable plate 203. In this way, by continuously changing the position, the sprayed small water droplets float in the air and uniformly absorb the harmful substance particles in the waste gas, achieving the preliminary purification treatment of the waste gas. Then, the preliminarily purified gas will enter the treatment chamber 106. At this time, the movable plate 203 and several ultraviolet emitters on its surface are used to disinfect the waste gas entering the treatment chamber 106 through ultraviolet light for the toxic gas inside. Then, the disinfected waste gas will pass through the activated carbon plate 304 and come to the front of the screen. In this process, the activated carbon plate 304 absorbs the harmful chemical gases and chemical residue particles in the disinfected gas. Then, it enters the air outlet pipe 301 through the screen plate 302 and discharges the purified gas to the outside.

[0042] Although this process pressurizes the water source through the atomization device 201 and sprays water droplets to the outside, and then uses the water droplets to absorb the toxic particulate matter in the waste gas to complete the purpose of initially purifying the waste gas. When the concentration in the waste gas is relatively high, the water droplets sprayed by the atomization device 201 cannot ensure complete absorption and combination with the toxic impurity particles in the waste gas. In this way, not only can the waste gas not be initially purified, resulting in the discharged gas still containing toxic particulate matter, but also it will accelerate the saturation state of the subsequent activated carbon plate 304. In this case, the activated carbon plate 304 will not be able to adsorb the toxic chemical gas and chemical residue particles, causing the problem of toxic gas escape. Based on this, two concentration detectors are respectively set inside the air inlet channel and the air outlet pipe 301, denoted as A1 and A2. A1 is used to detect the gas concentration when the waste gas enters, and the purification strategy of the atomization device 201 is dynamically adjusted according to the gas concentration data at this time, so that the sprayed small water droplets can fully combine and absorb with the toxic particulate matter in the waste gas, avoiding the situation where the sprayed water droplets cannot fully combine with the toxic particulate matter in the waste gas, resulting in the treated gas still containing toxic components and not meeting the gas emission standards. The specific adjustment steps are as follows:

[0043] When the concentration detector in the A1 area detects that the waste gas concentration in the air inlet channel is higher than the preset value, it indicates that there are more harmful particulate matters in the waste gas at this time. At this time, adjust the atomization device 201 to increase the atomization pressure on one side inside it, so that the volume of the sprayed water droplets becomes smaller. In this way, the water mist will always be in a floating state in the treatment chamber 106 along with the inflowing waste gas. In addition, control the suction device in the circulation component 3 on the side of the disinfection chamber 107 to reduce its suction force, so that the flow rate of the waste gas is reduced. In this way, in cooperation with the atomization device 201, the sprayed small water droplets can extend the floating time in the air and fully contact and adsorb with the toxic particulate matter in the waste gas, achieving uniform initial purification of the inhaled waste gas.

[0044] During this process, since the increased atomization pressure makes the volume of the sprayed small water droplets smaller, although it can fully absorb with the toxic particulate matter in the waste gas and complete the purpose of initially purifying the gas, because the water droplets sprayed by the atomization device 201 are relatively small at this time, they are prone to move in the direction of the circulation component 3 along with the waste gas, resulting in no dust settling after the combined toxic particulate matter passes through the disinfection chamber 107, and directly adsorbing on the surface of the activated carbon plate 304 to make it in a saturated state. In this case, it is impossible to adsorb the toxic chemical gas and the residual substances after the chemical reaction in the waste gas after disinfection. At this time, control the connecting rod 211 to approach the rotary motor on the surface of the second electromagnetic slider 209 and control the connecting rod 211 to rotate, so that multiple movable plates 203 deflect simultaneously to form a relatively enclosed space area (please refer to Figure 6During this process, after the exhaust gas is guided into the enclosed space area formed by multiple movable plates 203 by two oppositely arranged flow guide plates on the inner side of the disinfection chamber 107 close to the movable plate 203, the exhaust gas will collide with the multiple movable plates 203 in the sealed space and thus form a turn. Such adjustment makes the exhaust gas in the enclosed space area form a vortex along the surfaces of the multiple movable plates 203, which not only prevents the toxic particulate matter adsorbed and combined with water droplets from rushing towards the surface of the activated carbon plate 304, but also reduces the power of the toxic particulate matter adsorbed and combined with water droplets flowing with the air, forcing it to settle dust in the enclosed space area, and thus cooperating with the funnel 110 and the slag discharge pipe 109 to discharge it to the outside.

[0045] It should be noted that: in order to ensure that the quality of the exhaust gas discharged from the air outlet pipe meets the gas discharge standard, at this time, the concentration detector in the A2 area in the air outlet pipe 301 is used to detect the concentration of the discharged exhaust gas. This detection data can reflect the working states of the atomizing device 201 and the activated carbon plate 304, and the atomizing device 201 and the activated carbon plate 304 are adjusted one by one to avoid the situation that the discharged exhaust gas still contains harmful substances and cannot meet the gas discharge standard and endanger physical health.

[0046] If the concentration detector in the A2 area detects that the concentration value of the exhaust gas in the air outlet pipe 301 is higher than the preset value, it means that the movable nozzle 204 on the atomizing device 201 has been in contact with the dust particles in the exhaust gas due to long-term operation, and the dust particles in the exhaust gas will accumulate near the movable nozzle 204 and gradually cause the nozzle to be blocked, reducing the effective aperture of the spray, resulting in the inability of the atomizing device 201 to evenly combine the sprayed water droplets with the harmful particulate matter in the exhaust gas, making the concentration of the exhaust gas in the air outlet pipe 301 higher than the preset value. At this time, two oppositely arranged movable plates 203 close to the atomizing device 201 are respectively controlled to swing left and right reciprocally through a rotating motor, and the two oppositely arranged flow guide plates on the inner side of the disinfection chamber 107 close to the movable plate 203 are continuously toggled. During this process, the air flow direction around the two oppositely arranged movable plates 203 close to the atomizing device 201 is affected during the swing and the air flow is pushed to the surface of the movable nozzle 204. At this time, the air flow is used in cooperation with the compression spring 205 on the movable nozzle 204 to make the movable nozzle 204 in a continuous vibration state, and the vibration of the movable nozzle 204 is used to clean the harmful particulate matter attached to the movable nozzle 204.

[0047] After the above adjustments are completed, the concentration detector in the A2 area is used again to detect the concentration of the waste gas in the air duct 301. When the waste gas concentration data is still higher than the preset value, it means that the surface of the activated carbon plate 304 facing the disinfection chamber 107 at the outlet air duct 301 is in a saturated state. In this way, the waste gas after disinfection cannot use the activated carbon plate 304 to adsorb the chemical harmful gases and residues after the chemical reaction inside it, resulting in the gas concentration after discharge still being higher than the preset value and not meeting the gas emission standard. At this time, the four movable plates 203 symmetrically arranged in the disinfection chamber 107 are controlled to rotate to a specific state (please refer to Figure 7 ), and when the air flow passes through the movable plates 203, the air pressure between two adjacent movable plates 203 increases. At the same time, two adjacent symmetrically arranged active plates close to the activated carbon plate 304 are controlled to rotate synchronously to guide the flow direction of the air flow. In this way, the angle change of the two symmetrically arranged movable plates 203 close to the activated carbon plate 304 is used to control the air flow to blow the surface of the activated carbon plate 304, achieving the effect of desorbing the activated carbon plate 304. At the same time, during the process of blowing the surface of the activated carbon plate 304, a number of ultraviolet emitters on the two movable plates 203 will use ultraviolet light to disinfect the toxic substances on the activated carbon plate 304 and assist the activated carbon plate 304 in desorbing during the blowing process, thereby prolonging the service life of the activated carbon plate 304 and avoiding the purpose of not only needing to be replaced frequently when it is prematurely saturated but also being unable to adsorb the waste gas after subsequent disinfection in a timely manner.

[0048] When the atomization device 201 processes waste gas with a high concentration, the atomization pressure is adjusted to reduce the ejected water droplets so that they can fully adsorb the harmful substances in the waste gas, thereby achieving the purpose of preliminary purification of the waste gas. During this process, the diversion plate and the four movable plates 203 symmetrically arranged in the disinfection chamber 107 are used to make the waste gas flowing through the disinfection chamber 107 directly enter the closed space area formed by the multiple movable plates 203 and form a vortex to achieve the purpose of dust reduction. At this time, the combined toxic substances will adsorb on the surface of the movable plates 203 and a number of ultraviolet emitters on their surfaces, which will not only pollute the movable plates 203 but also the attached toxic particles will block the ultraviolet light emitted by the ultraviolet emitters, resulting in the ultraviolet emitters being unable to normally disinfect the purified gas. At this time, the light sensing elements arranged in the treatment chamber 106 are used to detect the light intensity emitted by a number of ultraviolet emitters on the outer sides of the four oppositely arranged movable plates 203 respectively, and the detection data is used to judge whether it is blocked by impurities and harmful particles in the waste gas.

[0049] When the light intensity detected by the light sensor element outside the movable plate 203 is weaker than the preset brightness, it indicates that a large amount of harmful substances and particulate impurities in the waste gas have accumulated on the surface of the movable plate 203 and have blocked the ultraviolet light. First, control the two movable plates 203 symmetrically arranged near the atomizing device 201 to rotate towards the activated carbon plate 304, and control the blowing device in the circulation assembly 3 to work. Subsequently, control the two symmetrically arranged active plates near the activated carbon plate 304 to rotate towards the atomizing device 201 and be perpendicular to the inner wall of the disinfection chamber 107 specifically (please refer to Figure 8 ), so that the inhaled gas is drained by the two symmetrically arranged movable plates 203, and the surfaces of the two movable plates 203 near the activated carbon plate 304 are swept and blown. Slowly and simultaneously control the movable plates 203 to rotate the same angle, and use the second electromagnetic slider 209 to move in the electric control slide rail 111 and approach the two movable plates 203 near the activated carbon plate 304, so that the air outlet channel formed by the two symmetrically arranged movable plates 203 near the atomizing device 201 (the included angle formed after the two oppositely arranged movable plates 203 rotate) approaches the surface of the movable plate 203 to be cleaned, so as to achieve the purpose of cleaning. In addition, after cleaning, control the two movable plates 203 symmetrically arranged near the activated carbon plate 304 to rotate and contact each other to generate a slight impact, and use the vibration generated by the impact to shake off the impurities and toxic particulate matter blocked on its surface into the funnel 110, so as to achieve the purpose of cleaning the movable plate 203.

[0050] It should be noted that: when the two symmetrically arranged movable plates 203 rotate slowly and contact each other to generate a slight impact, a corresponding vibration state will be generated, and this state is a pre-set working mode, so the ultraviolet emitter on the movable plate 203 will not be damaged.

[0051] After the above adjustments are completed, continue to detect the intensity of the ultraviolet light on the movable plate 203 through the light sensor element. If the ultraviolet emitter on the movable plate 203 is still in a blocked state, resulting in weak light, control the first electromagnetic slider 208 at the top of the water delivery pipe 206 to move along the top of the inner wall of the treatment chamber 106 towards the movable plate 203, and control the atomizing device 201 to increase the atomizing pressure to spray water droplets to the outside. Subsequently, turn on the rotary motor below the movable plate 203 and control the movable plate 203 to rotate (please refer to Figure 9 ), and use the water droplets sprayed by the atomizing device 201 to clean the surfaces of the two oppositely arranged movable plates 203 near the atomizing device 201. In addition, when it is necessary to clean the two oppositely arranged movable plates 203 near the activated carbon plate 304, control the two adjacent movable plates 203 near the atomizing device 201 to rotate again (please refer to Figure 10), so that the atomizing device 201 can clean the surfaces of the two oppositely arranged movable plates 203 close to the activated carbon plate 304, thereby achieving the purpose of cleaning the movable plates 203.

[0052] It should be noted that when the first electromagnetic slider 208 is used to control the water delivery pipe 206 and the atomizing device 201 to move along the top of the inner wall of the treatment chamber 106, it will not interfere with its own water spraying work. The top of the water delivery pipe 206 can be connected to an external water source, or a water supply source can be set inside the treatment chamber 106 and connected. In addition, when cleaning the movable plate 203, the second electromagnetic slider 209 under the movable plate 203 moves along the electric control slide rail 111 towards the atomizing device 201, so that the atomizing device 201 can clean the surface of the movable plate 203.

[0053] In addition, the small water droplets combined with the toxic impurities will settle in the treatment chamber 106. The water droplet particles after dust settling will be guided to the lower funnel 110 through the bottom plate 108 in the disinfection chamber 107. Subsequently, the toxic residues in the funnel 110 will enter the slag discharge pipe 109, and the valve inside it will be controlled to discharge the toxic residues to the outside, achieving the purpose of timely cleaning the toxic residues and avoiding the situation of internal pollution of the disinfection chamber 107 caused by the long-term presence of toxic substances.

[0054] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An exhaust gas treatment component, the exhaust gas treatment component is arranged inside the ventilation cabinet main body, characterized in that, The fume hood main body includes a disinfection chamber. An intake pipe is provided on one side of the disinfection chamber, and the disinfection chamber is interconnected with the intake pipe for sucking waste gas into the disinfection chamber for disinfection treatment. A circulation component is provided on the side of the disinfection chamber away from the intake pipe. The circulation component is used for sucking in or discharging waste gas. A treatment chamber is provided on the outer surface of the intake pipe close to the disinfection chamber; The circulation component includes a second connecting piece. An air outlet pipe is provided on one side of the second connecting piece. The side of the second connecting piece away from the air outlet pipe is connected to the disinfection chamber, and an activated carbon plate is provided at the connection between the second connecting piece and the disinfection chamber. The activated carbon plate is used for adsorbing toxic substances in the disinfected waste gas; Four symmetrically arranged support columns are provided at the bottom of the inner wall of the disinfection chamber. The top of each support column is provided with the same bottom plate. An electric control slide rail is provided on the upper surface of the bottom plate, and the number of electric control slide rails is two. Each electric control slide rail is mirror-symmetrically arranged above the bottom plate. Through holes are provided on the surface of the bottom plate; The waste gas treatment component includes a second electromagnetic slider, and the second electromagnetic slider is arranged inside the electric control slide rail on the bottom plate. A connecting rod is movably provided on the top of the second electromagnetic slider, and a movable plate is provided on the outer surface of the connecting rod. A number of ultraviolet emitters are provided on the surface of the movable plate; On one side of the inner wall of the disinfection chamber in the fume hood main body close to the movable plate, two oppositely arranged guide plates are provided, and the sides of the two guide plates away from the disinfection chamber are in contact with the movable plate; The waste gas treatment component further includes an atomizing device. A water delivery pipe is provided inside the atomizing device. The top of the water delivery pipe is interconnected with an external water source. A water through pipe is provided on the outer side of the water delivery pipe. The end of the water through pipe away from the water delivery pipe is provided with a movable spray head. The movable spray head is interconnected with the water through pipe. A compression spring is provided on the side of the movable spray head close to the atomizing device. The number of compression springs is two. Each compression spring is symmetrically arranged on one side of the movable spray head, and the end of each compression spring away from the movable spray head is arranged on the outer surface of the atomizing device. Two adjusting plates for adjusting the atomizing angle are oppositely provided on the surface of the atomizing device close to the movable spray head; A driving motor is provided on the outer side of the connecting rod close to the second electromagnetic slider, and the driving motor is used for controlling the rotation of the connecting rod; The number of the connecting rods, movable plates, second electromagnetic sliders and driving motors are all set to four. Each connecting rod, movable plate, second electromagnetic slider and driving motor are symmetrically arranged above the bottom plate. A rotation motor for controlling the rotation of each connecting rod is provided at the end of each connecting rod close to each second electromagnetic slider; A first electromagnetic slider is provided at the top of the water delivery pipe. The water delivery pipe is slidably connected to the top of the treatment chamber through the first electromagnetic slider. A micro motor is provided on the outer surface of the water delivery pipe, and the output end of the micro motor is interconnected with the end of the water delivery pipe.

2. The exhaust gas treatment component according to claim 1, characterized in that, The number of the movable spray heads and water through pipes are both set to three. Each movable spray head and water through pipe are circumferentially arrayed on the outer surface of the atomizing device.

3. The exhaust gas treatment assembly according to claim 1, characterized in that, A buckle is provided on the outer side of the treatment chamber. A fixing ring is movably provided inside the buckle. A first connecting piece is provided on the inner diameter of the fixing ring. The inside of the first connecting piece is interconnected with the intake pipe. A dust-proof mesh plate for filtering waste gas is provided at the connection between the first connecting piece and the intake pipe.

4. The exhaust gas treatment assembly according to claim 1, characterized in that, The inner wall of the second connecting piece near the air outlet pipe is provided with a screen plate, and an air suction device is arranged on the side of the screen plate away from the air outlet pipe.

5. The exhaust gas treatment component according to claim 1, characterized in that, A funnel is arranged at the bottom of the disinfection and sterilization bin. The bottom of the disinfection and sterilization bin is communicated with the funnel. A slag discharge pipe is arranged on the side of the funnel away from the disinfection and sterilization bin. The slag discharge pipe is internally communicated with the funnel, and a valve is arranged inside the slag discharge pipe to control the discharge of toxic impurities in the slag discharge pipe to the outside.

6. The exhaust gas treatment assembly according to claim 1, characterized in that: A protective plate for protecting the disinfection and sterilization bin is arranged on the outer surface of the disinfection and sterilization bin. An observation plate for observing the gas disinfection and sterilization situation is arranged in the middle area of the protective plate. The material of the observation plate is a light-transmitting glass material. Two support frames for support are arranged in a mirror image manner at the bottom of the disinfection and sterilization bin, and anti-slip foot pads are arranged on the side of the two support frames away from the disinfection and sterilization bin.

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