Waste gas treatment assembly and ventilation cabinet comprising same

Abstract

The invention relates to the technical field of waste gas treatment, and discloses a waste gas treatment assembly and a ventilation cabinet comprising the waste gas treatment assembly, the waste gas treatment assembly comprises a ventilation cabinet main body, the ventilation cabinet main body comprises a disinfection bin, one side of the disinfection bin is provided with a gas inlet pipeline, and the disinfection bin is communicated with the gas inlet pipeline and used for sucking waste gas into the disinfection bin for disinfection treatment; a circulation assembly is arranged on the side, away from the gas inlet pipeline, of the disinfection bin and used for sucking or discharging waste gas, a gas suction device in the circulation assembly in the disinfection bin is used for controlling the flow direction of the waste gas in the whole device, then the kinetic energy of harmful particles in the waste gas is reduced by dynamically adjusting a movable plate, and therefore the waste gas can be disinfected. And then the movable plate is adjusted again, a rotary motor at the bottom of the movable plate is used for swinging the atomization device, the atomization device is in frequent contact with the guide plate during swinging, and airflow is guided through cooperation of the guide plate and the movable plate to conduct back flushing on a movable spray head on the atomization device, so that the cleaning effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment, in particular to a waste gas treatment component and a fume hood comprising the component. Background Art

[0002] With the rapid development of education and science and technology industries, the scale of laboratories has been significantly expanded, and the number of uses has gradually increased. The pollutants generated in laboratories have also had a certain impact on the environment. People in related fields have gradually begun to pay attention to this phenomenon. In order to ensure the smooth progress of teaching, scientific research and other activities while protecting the health of personnel and the natural environment and laboratory environment from pollution, it is necessary to propose some methods for treating laboratory exhaust gas. Since all experiments involving gas generation must be carried out in fume hoods, necessary absorption treatment or protective measures must be taken for experiments that produce a large amount of harmful gases.

[0003] Chinese patent application number 202223306235.2 discloses a laboratory organic waste gas treatment device, including an air inlet pipe, a connecting assembly is provided at the left end of the air inlet 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 air inlet pipe, the right end of the air inlet pipe is connected to the outer shell, a balance frame is installed at the inner end of the supporting foot, a guide plate is installed at the inner end of the outer shell, a discharge pipe is installed at the lower end of the guide plate, and a valve is provided inside the discharge pipe, a connecting plate is installed at the inner end of the guide plate, and an ultraviolet lamp is provided at the lower end of the connecting plate, an air outlet pipe is provided at the right end of the outer shell, an exhaust fan is connected to the right end of the air outlet pipe, and an activated carbon layer is installed at the inner end of the air outlet pipe.

[0004] In the above-mentioned prior art, it is found that when the concentration of the inhaled exhaust 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 exhaust gas. 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 rear will quickly absorb a large amount of harmful substances and be in a saturated state, and it will no longer be able to adsorb the subsequent harmful substances in the gas, causing the harmful gas to escape. In addition, when the gas concentration is high, the harmful substances and impurities in the gas will adhere and accumulate on the ultraviolet surface, causing the emitted ultraviolet beam to be blocked, and thus the harmful substances in the exhaust gas cannot be disinfected.

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

[0006] The object of the present invention is to provide an exhaust gas treatment component and a fume hood comprising the component to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a fume hood, comprising a fume hood main body, the fume hood main body comprising a sterilization chamber, an air intake duct is provided on one side of the sterilization chamber, and the sterilization chamber and the air intake duct are interconnected, and are used to suck waste gas into the sterilization chamber for sterilization treatment, and a circulation component is provided on the side of the sterilization chamber away from the air intake duct, and the circulation component is used to suck in or discharge waste gas; A processing chamber is provided on the outer surface of the air intake duct close to the disinfection chamber, a fastener is provided on the outer side of the processing chamber, and a fixing ring is movably provided inside the fastener, and a first connecting member is provided on the inner diameter of the fixing ring, the interior of the first connecting member is interconnected with the air intake duct, and a dustproof screen for filtering exhaust gas is provided at the connection between the first connecting member and the air intake duct.

[0008] Preferably, the circulation component comprises a second connecting member, an air outlet pipe is provided on one side of the second connecting member, a screen plate is provided on the inner wall of the second connecting member close to the air outlet pipe, and an air suction device is provided on the side of the screen plate away from the air outlet pipe; The side of the second connecting piece away from the air outlet pipe is interconnected with 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 to adsorb toxic substances in the exhaust gas after disinfection.

[0009] Preferably, a funnel is provided at the bottom of the disinfection bin, the bottom of the disinfection bin is connected with the funnel, and a slag discharge pipe is provided on the side of the funnel away from the disinfection bin, the slag discharge pipe is connected with the interior 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.

[0010] Preferably, four symmetrically arranged support columns are provided at the bottom of the inner wall of the disinfection chamber, and the top of each support column is provided with the same bottom plate. The upper surface of the bottom plate is provided with an electric control slide rail, and the number of the electric control slide rails is two, each of the electric control slide rails is mirror-imaged above the bottom plate, and the surface of the bottom plate is provided with a through hole.

[0011] Preferably, the outer surface of the disinfection chamber is provided with a protective plate for protecting the disinfection chamber, the middle area of ​​the protective plate is provided with an observation plate for observing the gas disinfection situation, and the material of the observation plate is light-transmitting glass, and two support frames for support are mirrored at the bottom of the disinfection chamber, and the two support frames are provided with anti-slip pads on the side away from the disinfection chamber.

[0012] The present invention also provides an exhaust gas treatment component, comprising a fume hood and an exhaust gas treatment component according to any of the above technical solutions, wherein the exhaust gas treatment component is arranged inside the fume hood body, the exhaust gas treatment component comprises 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, and a plurality of ultraviolet emitters are provided on the surface of the movable plate; Two oppositely arranged guide plates are provided on the side of the inner wall of the disinfection chamber in the fume hood body close to the movable plate, and the sides of the two guide plates away from the disinfection chamber are in contact with the movable plate.

[0013] Preferably, the exhaust gas treatment component also includes an atomizing device, and a water pipe is provided inside the atomizing device, the top of the water pipe is interconnected with an external water source, a water pipe is provided on the outside of the water pipe, and a movable nozzle is provided at the end of the water pipe away from the water pipe, the movable nozzle and the water pipe are connected to each other, a compression spring is provided on the side of the movable nozzle close to the atomizing device, the number of the compression springs is two, each of the compression springs is symmetrically arranged on one side of the movable nozzle, and each of the compression springs is arranged on the outer surface of the atomizing device at one end away from the movable nozzle, and two adjustment plates for adjusting the atomization angle are relatively provided on the surface of the atomizing device close to the movable nozzle.

[0014] Preferably, 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 to control the rotation of the connecting rod; The number of the connecting rods, movable plates, second electromagnetic sliders and drive motors is set to four, each of the connecting rods, movable plates, second electromagnetic sliders and drive motors is symmetrically arranged above the base plate, and each of the connecting rods near the end of each second electromagnetic slider is provided with a rotary motor for controlling the rotation of each connecting rod.

[0015] Preferably, the number of the movable nozzles and water pipes is set to three, and each of the movable nozzles and water pipes is distributed in a circular array on the outer surface of the atomizing device; A first electromagnetic slider is provided on the top of the water pipe, and the water pipe is slidably connected to the top of the processing chamber through the first electromagnetic slider. A micro motor is provided on the outer surface of the water pipe, and the output end of the micro motor is connected to the end of the water pipe.

[0016] Technical effects and advantages of the present invention: 1. The present invention controls the flow direction of exhaust gas in the overall device by setting four symmetrically arranged movable plates and the cooperation of the second electromagnetic slider and other components, and uses the suction device in the circulation assembly in the disinfection chamber, and then reduces the kinetic energy of harmful particles in the exhaust gas by dynamically adjusting the movable plates, thereby achieving the purpose of dust reduction, and then adjusts the movable plates again and uses the rotary motor at the bottom to swing the atomizing device, which frequently contacts the guide plate during the swinging and uses the cooperation between the guide plate and the movable plate to guide the airflow to recoil the movable nozzle on the atomizing device to achieve a cleaning effect.

[0017] 2. The present invention achieves the function of guiding the airflow direction by setting the mutual coordination of components such as activated carbon plates, adjusting the rotation angle of two symmetrically arranged movable plates, and cooperating with the air suction device in the circulation component. At the same time, the air pressure at the angle between the two symmetrically arranged movable plates increases accordingly. At this time, the two symmetrically arranged movable plates are controlled to rotate at the same time, so as to achieve the function of purging the surface of the activated carbon plate. At the same time, during the purging process, the ultraviolet light emitted by the ultraviolet emitter on the movable plate is used to assist in the desorption of chemical toxic gases and chemical residual substances on the surface, thereby increasing the service life of the activated carbon plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a front view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the overall structure of the present invention in an open state; Figure 4 It is a schematic diagram of the atomization device and related structures of the present invention; Figure 5 for Figure 3 The enlarged structural diagram at A in the middle; Figure 6 This is a schematic diagram of the state of the movable panels of the present invention being spliced ​​together to form a closed space area; Figure 7 A schematic diagram of the state of increasing airflow formed by splicing the movable panels of the present invention; Figure 8 It is a schematic diagram of the cleaning state of the movable plate assembly of the present invention; Fig. 9 This is a schematic diagram of the first state of the atomizing device of the present invention cleaning the movable plate; Fig.10 This is a schematic diagram of the second state of the atomizing device of the present invention cleaning the movable plate.

[0019] In the figure: 1. Fume hood body; 101. Air inlet duct; 102. First connecting piece; 103. Dust screen; 104. Fixing ring; 105. Fastener; 106. Processing chamber; 107. Disinfection chamber; 108. Bottom plate; 109. Slag discharge pipe; 110. Funnel; 111. Electric control slide rail; 112. Protective plate; 113. Support frame; 114. Observation plate; 2. Exhaust gas treatment assembly; 201. Atomization device 202, adjusting plate; 203, movable plate; 204, movable nozzle; 205, compression spring; 206, water pipe; 207, micro motor; 208, first electromagnetic slider; 209, second electromagnetic slider; 210, driving motor; 211, connecting rod; 3, circulation component; 301, air outlet pipe; 302, screen plate; 303, suction device; 304, activated carbon plate; 305, second connecting piece. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] The present invention provides Figures 1 to 10 A fume hood shown in the figure includes a fume hood body 1, and the fume hood body 1 includes a disinfection chamber 107. An air intake duct 101 is provided on one side of the disinfection chamber 107, and the disinfection chamber 107 and the air intake duct 101 are interconnected, which is used to suck the exhaust 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 air intake duct 101, and the circulation component 3 is used to inhale or discharge the exhaust gas. A processing chamber 106 is provided on the outer surface of the air intake duct 101 close to the disinfection chamber 107, and a snap-fit ​​105 is provided on the outer side of the processing chamber 106, and a fixing ring 104 is provided inside the snap-fit ​​105, and a connecting piece is provided on the inner diameter of the fixing ring 104, and the inner part of the connecting piece is interconnected with the air intake duct 101, and a dustproof screen 103 for filtering the exhaust gas is provided at the connection between the first connecting piece 102 and the air intake duct 101.

[0022] like Figure 3As shown, the circulation component 3 includes a second connecting member 305, one side of the second connecting member 305 is provided with an air outlet pipe 301, and the inner wall of the second connecting member 305 close to the air outlet pipe 301 is provided with a screen plate 302, and the side of the screen plate 302 away from the air outlet pipe 301 is provided with an air suction device 303, the side of the second connecting member 305 away from the air outlet pipe 301 is interconnected with the disinfection chamber 107, and the connection between the second connecting member 305 and the disinfection chamber 107 is provided with an activated carbon plate 304, and the activated carbon plate 304 is used to adsorb toxic substances in the exhaust gas after disinfection. When in use, the exhaust gas after ultraviolet disinfection will pass through the activated carbon plate 304 and be discharged to the screen plate 302, and then be discharged to the outside through the air outlet pipe 301. In this process, harmful impurities and toxic chemical gases in the gas will be sucked into the activated carbon plate 304, thereby ensuring that the gas discharged to the outside is in a non-toxic state and avoiding the leakage of toxic gases or harmful substances. In addition, after the exhaust gas flows through the screen plate 302, the tiny particles in the gas are intercepted again by the screen plate 302 to ensure that the overall quality of the exhaust gas is at the dischargeable standard.

[0023] A funnel 110 is provided at the bottom of the disinfection bin 107, and the bottom of the disinfection bin 107 is communicated with the funnel 110, and a slag discharge pipe 109 is provided on the side of the funnel 110 away from the disinfection bin 107, and the slag discharge pipe 109 is communicated with the inside of the funnel 110, and a valve is provided inside the slag discharge pipe 109 for controlling the discharge of toxic impurities in the slag discharge pipe 109 to the outside, and four symmetrically arranged support columns are provided at the bottom of the inner wall of the disinfection bin 107, and the top of each support column is provided with the same bottom plate 108, and the upper surface of the bottom plate 108 is provided with an electric control slide rail 111, and the number of the electric control slide rail 111 is two, and each electric control slide rail 111 is mirror-set on the bottom plate Above 108, the surface of the bottom plate 108 is provided with a through hole. When in use, the funnel 110 at the bottom of the disinfection bin 107 is used to smoothly discharge the dust-reduced particles in the disinfection bin 107 into the funnel 110, and because the funnel 110 is interconnected with the slag discharge pipe 109, the valve is cooperated to discharge the dust-reduced particles to the outside, avoiding long-term accumulation in the disinfection bin 107 and causing internal pollution of the fume hood. In addition, the bottom plate 108 located in the disinfection bin 107 is fixed to the inside of the disinfection bin 107 by four symmetrically arranged support columns at its bottom, so as to guide and collect the harmful particles after atomization, and finally discharge them into the inside of the funnel 110.

[0024] like Figure 1-Figure 3As shown, the outer surface of the disinfection chamber 107 is provided with a protective plate 112 for protecting the disinfection chamber 107, and the middle area of ​​the protective plate 112 is provided with an observation plate 114 for observing the gas disinfection situation, and the material of the observation plate 114 is a light-transmitting glass material, and the bottom of the disinfection chamber 107 is mirror-imaged with two support frames 113 for support, and the two support frames 113 are provided with anti-slip foot pads on the side away from the disinfection chamber 107. When in use, the observation plate 114 arranged outside the disinfection chamber 107 is used to observe the degree of exhaust gas treatment in the disinfection 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 discharged gas is at a standard that can be discharged naturally, and avoid the escape of toxic gases.

[0025] like Figure 4-Figure 10 As shown, the exhaust gas treatment component 2 includes a fume hood and an exhaust gas treatment component 2 of any of the aforementioned technical solutions, the exhaust gas treatment component 2 is arranged inside the fume hood body 1, the exhaust 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, the top of the second electromagnetic slider 209 is movably provided with a connecting rod 211, and the outer surface of the connecting rod 211 is provided with a movable plate 203, and the surface of the movable plate 203 is provided with a plurality of ultraviolet emitters, and the inner wall of the disinfection chamber 107 in the fume hood body 1 is provided with two relatively arranged guide plates on the side close to the movable plate 203, and the two guide plates are provided with a plurality of ultraviolet emitters on the outer surface of the connecting rod 211, and the outer surface of the connecting rod 211 is provided with a movable plate 203, and the outer surface of the movable plate 203 is provided with a plurality of ultraviolet emitters, and the inner wall of the disinfection chamber 107 in the fume hood body 1 is provided with two relatively arranged guide plates on the side close to the movable plate 203, and the two guide plates are provided with a plurality of ultraviolet emitters on the outer surface of the connecting rod 211, and the outer surface of the connecting rod 211 is provided with a movable plate 203, and the inner wall of the disinfection chamber 107 in the fume hood body 1 is provided with two relatively arranged guide plates, and the two guide plates are provided with a plurality of ultraviolet emitters on the outer surface of the connecting rod 211, and the outer surface of the connecting rod 211 is provided with a movable plate 203, and the two guide plates are provided with a plurality of ultraviolet emitters on the outer surface of the connecting rod 211, and the outer surface of the connecting rod 211 is provided with a The side of the flow plate away from the disinfection chamber 107 is in contact with the movable plate 203, and a driving motor 210 is provided on the outer side of the connecting rod 211 near the second electromagnetic slider 209, and the driving motor 210 is used to control the rotation of the connecting rod 211. The number of connecting rods 211, movable plates 203, second electromagnetic sliders 209 and driving motors 210 is set to four, and each connecting rod 211, movable plate 203, second electromagnetic slider 209 and driving motor 210 are symmetrically arranged above the bottom plate 108, and each connecting rod 211 is provided with a rotating motor for controlling the rotation of each connecting rod 211 near the end of each second electromagnetic slider 209.

[0026] The exhaust gas treatment component 2 also includes an atomizing device 201, and a water pipe 206 is provided inside the atomizing device 201, the top of the water pipe 206 is interconnected with an external water source, a water pipe is provided on the outside of the water pipe 206, and a movable nozzle 204 is provided at one end of the water pipe away from the water pipe 206, the movable nozzle 204 and the water pipe are interconnected, and a compression spring 205 is provided on the side of the movable nozzle 204 close to the atomizing device 201, and the number of the compression springs 205 is two, each compression spring 205 is symmetrically arranged on one side of the movable nozzle 204, and each compression spring 205 is away from the movable nozzle 20 One end of the atomizing device 201 is arranged on the outer surface of the atomizing device 201, and two adjusting plates 202 for adjusting the atomizing angle are arranged on the surface of the atomizing device 201 close to the movable nozzle 204. The number of movable nozzles 204 and water pipes is set to three, and each movable nozzle 204 and water pipe are arranged in a circular array 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, and the water delivery pipe 206 is slidably connected to the top of the processing chamber 106 through the first electromagnetic slider 208. A micro motor 207 is arranged on the outer surface of the water delivery pipe 206, and the output of the micro motor 207 The first end is connected to the end of the water pipe 206. When in use, the first connecting piece 102 is used to connect to the exhaust gas source, and then the exhaust gas in the air inlet channel is sucked in by the blowing device in the circulation component 3, and then the water source in the water pipe 206 is compressed and sprayed out by the atomizing device 201. At the same time, the first electromagnetic slider 208 and the processing chamber 106 are controlled to cooperate with each other, so that the atomizing device 201 moves along the top of the processing chamber 106 toward the movable plate 203. In this way, by constantly changing the position, the sprayed small water droplets float in the air and are evenly mixed with the harmful substance particles in the exhaust gas. The exhaust gas is evenly absorbed to achieve preliminary purification of the exhaust gas, and then the preliminarily purified gas enters the processing chamber 106. At this time, the movable plate 203 and several ultraviolet emitters on its surface are used to disinfect the toxic gases in the exhaust gas entering the processing chamber 106 through ultraviolet light. Then, the exhausted gas after disinfection passes through the activated carbon plate 304 and comes to the front of the screen. In this process, the activated carbon plate 304 is used to absorb harmful chemical gases and chemical residual particles in the disinfected gas, and then passes through the screen plate 302 into the exhaust pipe 301 and discharges the purified gas to the outside.

[0027] Although this process pressurizes the water source through the atomizing device 201 and sprays water droplets to the outside, and then uses the water droplets to absorb the toxic particles in the exhaust gas, thereby completing the purpose of preliminary purification of the exhaust gas, when the concentration in the exhaust gas is high, the water droplets sprayed by the atomizing device 201 cannot guarantee that they are completely absorbed and combined with the toxic impurity particles in the exhaust gas. This not only fails to perform preliminary purification of the exhaust gas, resulting in the presence of toxic particulate matter in the exhausted gas, but also accelerates the subsequent activated carbon plate 304 to be in a saturated state, so that the activated carbon plate 304 will not be able to perform toxic chemical gas and chemical residual particles. In order to solve the problem of toxic gas escape caused by adsorption, two concentration detectors are set in the air inlet channel and the air outlet pipe 301, respectively, denoted as A1 and A2, and A1 is used to detect the gas concentration when the exhaust gas enters, and the purification strategy of the atomization device 201 is dynamically adjusted according to the data of the gas concentration at this time, so that the sprayed small water droplets can fully combine and absorb with the toxic particles in the exhaust gas, and avoid the sprayed water droplets being unable to fully combine with the toxic particles in the exhaust gas, resulting in the gas after treatment still having toxic components and not meeting the gas emission standards. The specific adjustment steps are as follows: When the concentration detector in area A1 detects that the exhaust gas concentration in the air inlet channel is higher than the preset value, it means that there are more harmful particles in the exhaust gas at this time. At this time, the atomizing device 201 is adjusted to increase the atomizing pressure on one side inside it to reduce the volume of the sprayed water droplets. In this way, the water mist will always be in a floating state in the treatment chamber 106 along with the inflowing exhaust gas. In addition, the blowing device in the circulation component 3 located on the side of the disinfection chamber 107 is controlled to reduce its suction force to reduce the flow rate of the exhaust gas. In this way, the atomizing device 201 is cooperated so that the sprayed small water droplets can float in the air for a longer time and can fully contact and adsorb with the toxic particles in the exhaust gas, so as to complete the uniform preliminary purification of the inhaled exhaust gas.

[0028] During this process, the volume of the sprayed small water droplets becomes smaller due to the increase in atomization pressure. Although they can fully absorb the toxic particles in the exhaust gas and complete the purpose of preliminary purification of the gas, the water droplets sprayed by the atomization device 201 are small and easy to move with the exhaust gas in the direction of the circulation component 3, so that the combined toxic particles do not fall into dust after passing through the disinfection chamber 107, resulting in direct adsorption on the surface of the activated carbon plate 304 to make it saturated. In this way, it is impossible to adsorb the toxic chemical gases in the exhaust gas after subsequent disinfection and the residual substances after the chemical reaction. At this time, the connecting rod 211 is controlled to be close to the rotating motor on the surface of the second electromagnetic slider 209 and the connecting rod 211 is controlled to rotate, so that the multiple movable plates 203 are deflected at the same time and form a relatively closed space area (please refer to Figure 6) During this process, after the two guide plates relatively arranged on the inner side of the disinfection chamber 107 near the movable plate 203 guide the exhaust gas into the closed space area formed by the multiple movable plates 203, the exhaust gas will collide with the multiple movable plates 203 in the sealed space to form a turn. This adjustment makes the exhaust gas in the closed space area form a vortex along the surface of the multiple movable plates 203, thereby not only preventing the toxic particles that are adsorbed and combined with the water droplets from rushing to the surface of the activated carbon plate 304, but also reducing the power of the toxic particles that are adsorbed and combined with the water droplets to flow with the air, forcing them to reduce dust in the closed space area, and then cooperate with the funnel 110 and the slag discharge pipe 109 to discharge it to the outside.

[0029] It is worth noting that: in order to ensure that the quality of the exhaust gas discharged from the outlet pipe meets the gas discharge standard, the concentration of the exhausted gas is detected by a concentration detector located in the A2 area of ​​the outlet pipe 301. This detection data can reflect the working status of the atomization device 201 and the activated carbon plate 304, and the atomization device 201 and the activated carbon plate 304 can be adjusted one by one to avoid the situation where the exhausted exhaust gas still contains harmful substances and fails to meet the gas emission standards, which endangers human health.

[0030] If the concentration detector in area A2 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 working for a long time and has come into contact with the dust particles in the exhaust gas, 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 water droplets sprayed by the atomizing device 201 being unable to evenly combine with the harmful particles in the exhaust gas, making the exhaust gas concentration in the air outlet pipe 301 higher than the preset value. At this time, the two relatively arranged movable plates 204 near the atomizing device 201 are respectively controlled to The motor is rotated to swing back and forth, and the two relatively arranged guide plates on the inner side of the disinfection chamber 107 near the movable plate 203 are continuously moved. In this process, the two relatively arranged movable plates 203 near the atomization device 201 are swung to affect the direction of the airflow around them and push the airflow to the surface of the movable nozzle 204. At this time, the airflow cooperates with the compression spring 205 on the movable nozzle 204 to make the movable nozzle 204 in a state of continuous vibration, and the vibration of the movable nozzle 204 is used to achieve the purpose of cleaning the harmful particles attached to the movable nozzle 204.

[0031] After completing the above adjustments, the concentration detector in the A2 area is used again to detect the exhaust gas concentration in the air outlet duct 301. When the exhaust gas concentration data is still higher than the preset value, it means that the surface of the activated carbon plate 304 located at the air outlet duct 301 facing the disinfection chamber 107 is in a saturated state. In this way, the exhaust gas after disinfection cannot use the activated carbon plate 304 to adsorb the harmful chemical gases and residues after chemical reactions inside it, resulting in the exhaust gas concentration still being higher than the preset value and not meeting the gas emission standards. At this time, the four movable plates 203 symmetrically arranged in the disinfection chamber 107 are controlled to rotate for a specific state (please refer to Figure 7 ), and when the airflow passes through the movable plate 203, the air pressure between the two adjacent movable plates 203 increases, and at the same time, the two adjacent symmetrically arranged activated plates near the activated carbon plate 304 are controlled to rotate synchronously to guide the flow direction of the airflow, so as to achieve the purpose of controlling the gas to sweep the surface of the activated carbon plate 304 by utilizing the angle change of the two symmetrically arranged movable plates 203 near the activated carbon plate 304, so as to achieve the effect of desorbing the activated carbon plate 304, and at the same time, in the process of sweeping the surface of the activated carbon plate 304, a number of ultraviolet emitters located on the two movable plates 203 will use ultraviolet light to disinfect toxic substances on the activated carbon plate 304 and assist the activated carbon plate 304 to desorb during the sweeping process, thereby extending the service life of the activated carbon plate 304 and avoiding being in a saturated state too early, which not only requires frequent replacement, but also fails to timely adsorb the waste gas after subsequent sterilization.

[0032] When the atomizing device 201 treats waste gas with a relatively high concentration, the atomizing pressure is adjusted to reduce the sprayed water droplets so that they can fully adsorb harmful substances in the waste gas, thereby achieving the purpose of preliminary purification of the waste gas. In this process, the drainage plate is used in conjunction with the four movable plates 203 symmetrically arranged in the disinfection chamber 107, so that the waste gas flowing through the disinfection chamber 107 will directly enter the closed space area formed by the multiple movable plates 203 and form a vortex, thereby achieving the purpose of dust reduction. At this time, the combined toxic substances will be adsorbed on the surface of the movable plate 203 and the surface of several ultraviolet emitters on the surface thereof, which will not only pollute the movable plate 203, but also the attached toxic particles will block the ultraviolet light emitted by the ultraviolet emitter, thereby causing the ultraviolet emitter to be unable to normally disinfect the purified gas. At this time, the light intensity emitted by the several ultraviolet emitters on the outside of the four relatively arranged movable plates 203 is detected by the photosensitive elements arranged in the processing chamber 106, and it is determined whether it is blocked by impurities and harmful particles in the waste gas through the detection data.

[0033] When the light intensity on the outer side of the movable plate 203 is detected to be weaker than the preset brightness by the light sensing element, it means that a large amount of harmful substances and particulate impurities in the exhaust gas are accumulated on the surface of the movable plate 203 and have blocked the ultraviolet light. First, the two movable plates 203 symmetrically arranged near the atomizing device 201 are controlled to rotate in the direction of the activated carbon plate 304, and the blowing device in the circulation component 3 is controlled to work, and then the two symmetrically arranged active plates near the activated carbon plate 304 are controlled to rotate in the direction of the atomizing device 201 and be in a vertical state with the inner wall of the disinfection chamber 107 (please refer to the details). Figure 8 ), so that the inhaled gas is drained through the two symmetrically arranged movable plates 203, and the surfaces of the two movable plates 203 close to the activated carbon plate 304 are swept and blown, and the movable plates 203 are slowly and simultaneously controlled to rotate synchronously at the same angle, and the second electromagnetic slider 209 is used to move in the electric control slide rail 111 and approach the two movable plates 203 located near the activated carbon plate 304, so that the air outlet channel formed by the two symmetrically arranged movable plates 203 close to the atomization device 201 (the angle formed after the two relatively arranged movable plates 203 are rotated) is close to the surface of the movable plates 203 that need to be cleaned, thereby achieving the purpose of cleaning, and in addition, after cleaning, the two symmetrically arranged movable plates 203 close to the activated carbon plate 304 are controlled to rotate, and contact each other to produce a small impact, and the vibration generated by the impact is used to complete the shaking off of the impurities and toxic particles blocked on the surface into the funnel 110, thereby achieving the purpose of cleaning the movable plates 203.

[0034] It is worth noting that when two symmetrically arranged movable plates 203 are rotated slowly and come into contact with each other to produce 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.

[0035] After the above adjustment is completed, the intensity of the ultraviolet light on the movable plate 203 is continuously detected by the light sensing element. If the ultraviolet emitter on the movable plate 203 is still in a shielded state, resulting in weak light, the first electromagnetic slider 208 located at the top of the water delivery pipe 206 is controlled to move along the top of the inner wall of the processing chamber 106 toward the movable plate 203, and the atomizing device 201 is controlled to increase the atomizing pressure to spray water droplets to the outside, and then the rotating motor located under the movable plate 203 is turned on to control the movable plate 203 to rotate (see Fig. 9 ), use the water droplets sprayed by the atomizing device 201 to clean the surfaces of the two movable plates 203 disposed opposite to each other near the atomizing device 201. When it is necessary to clean the two movable plates 203 disposed opposite to each other near the activated carbon plate 304, control the two adjacent movable plates 203 disposed near the atomizing device 201 to rotate again (for details, please refer to Fig.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 completing the purpose of cleaning the movable plates 203.

[0036] It is worth noting that: when the first electromagnetic slider 208 is used to control the water pipe 206 and the atomizing device 201 to move along the top of the inner wall of the processing chamber 106, it will not interfere with its own water spraying work, and the top of the water pipe 206 can be connected to an external water source, or a water supply source can be set and connected inside the processing chamber 106. 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 toward the direction of the atomizing device 201, so that the atomizing device 201 can achieve the effect of cleaning the surface of the movable plate 203.

[0037] In addition, the small water droplets combined with the toxic impurities will be in a dust reduction phenomenon in the processing chamber 106. The water droplets after dust reduction will be guided to the funnel 110 below through the bottom plate 108 in the disinfection chamber 107. Then, the toxic residue in the funnel 110 will enter the residue discharge pipe 109, and the internal valve will be controlled to discharge the toxic residue to the outside, so as to achieve the purpose of cleaning the toxic residue in time and avoid the toxic substances from being in the disinfection chamber 107 for a long time and causing internal pollution.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fume hood, comprising a fume hood body (1), characterized in that: The fume hood body (1) comprises a sterilization chamber (107), an air intake duct (101) is provided on one side of the sterilization chamber (107), and the sterilization chamber (107) and the air intake duct (101) are interconnected, and are used to suck waste gas into the sterilization chamber (107) for sterilization treatment, and a circulation component (3) is provided on a side of the sterilization chamber (107) away from the air intake duct (101), and the circulation component (3) is used to suck in or discharge waste gas; A processing chamber (106) is provided on the outer surface of the air intake duct (101) close to the disinfection chamber (107), a snap-fitting piece (105) is provided on the outer side of the processing chamber (106), and a fixing ring (104) is movably provided inside the snap-fitting piece (105), and a first connecting piece (102) is provided on the inner diameter of the fixing ring (104), the interior of the first connecting piece (102) is interconnected with the air intake duct (101), and a dustproof screen (103) for filtering exhaust gas is provided at the connection between the first connecting piece (102) and the air intake duct (101).

2. The fume hood according to claim 1, characterized in that: The circulation component (3) comprises 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), and 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 piece (305) away from the air outlet pipe (301) is interconnected with the disinfection chamber (107), and an activated carbon plate (304) is provided at the connection between the second connecting piece (305) and the disinfection chamber (107), and the activated carbon plate (304) is used to adsorb toxic substances in the exhaust gas after disinfection.

3. The fume hood according to claim 2, characterized in that: A funnel (110) is provided at the bottom of the disinfection bin (107), the bottom of the disinfection bin (107) and the funnel (110) are interconnected, and a slag discharge pipe (109) is provided on the side of the funnel (110) away from the disinfection bin (107), the slag discharge pipe (109) is interconnected with the interior of the funnel (110), and a valve is provided inside the slag discharge pipe (109) for controlling the discharge of toxic impurities in the slag discharge pipe (109) to the outside.

4. The fume hood according to claim 3, characterized in that: Four symmetrically arranged support columns are provided at the bottom of the inner wall of the disinfection chamber (107), and the top of each support column is provided with the same bottom plate (108). The upper surface of the bottom plate (108) is provided with an electric control slide rail (111), and the number of the electric control slide rails (111) is two, and each of the electric control slide rails (111) is mirror-imaged above the bottom plate (108), and the surface of the bottom plate (108) is provided with a through hole.

5. The fume hood according to claim 4, characterized in that: The outer surface of the disinfection chamber (107) is provided with a protective plate (112) for protecting the disinfection chamber (107), and the middle area of ​​the protective plate (112) is provided with an observation plate (114) for observing the gas disinfection situation, and the material of the observation plate (114) is a light-transmitting glass material. Two support frames (113) for support are arranged in a mirror-like manner at the bottom of the disinfection chamber (107), and the two support frames (113) are provided with anti-slip pads on the side away from the disinfection chamber (107).

6. An exhaust gas treatment component, characterized in that: The invention comprises a fume hood as claimed in any one of claims 1 to 5 and an exhaust gas treatment component (2), wherein the exhaust gas treatment component (2) is arranged inside the fume hood body (1), the exhaust gas treatment component (2) comprises a second electromagnetic slider (209), and the second electromagnetic slider (209) is arranged inside an electric control slide rail (111) on a bottom plate (108), a connecting rod (211) is movably provided on the top of the second electromagnetic slider (209), and a movable plate (203) is provided on the outer surface of the connecting rod (211), and a plurality of ultraviolet emitters are provided on the surface of the movable plate (203); Two guide plates arranged opposite to each other are provided on a side of the inner wall of the disinfection chamber (107) in the fume hood body (1) close to the movable plate (203), and the sides of the two guide plates away from the disinfection chamber (107) are in contact with the movable plate (203).

7. The exhaust gas treatment component according to claim 6, characterized in that: The exhaust gas treatment assembly (2) further comprises an atomizing device (201), wherein a water pipe (206) is provided inside the atomizing device (201), wherein the top of the water pipe (206) is interconnected with an external water source, wherein a water pipe is provided outside the water pipe (206), and an active nozzle (204) is provided at one end of the water pipe away from the water pipe (206), wherein the active nozzle (204) is interconnected with the water pipe, and a compression spring (205) is provided on a side of the active nozzle (204) close to the atomizing device (201), wherein the number of the compression springs (205) is two, wherein each of the compression springs (205) is symmetrically arranged on one side of the active nozzle (204), and wherein one end of each of the compression springs (205) away from the active nozzle (204) is arranged on the outer surface of the atomizing device (201), and two adjustment plates (202) for adjusting an atomizing angle are provided opposite to each other on the surface of the atomizing device (201) close to the active nozzle (204).

8. The exhaust gas treatment component according to claim 7, characterized in that: A driving motor (210) is provided 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 number of the connecting rods (211), the movable plate (203), the second electromagnetic slider (209) and the driving motor (210) is set to four, each of the connecting rods (211), the movable plate (203), the second electromagnetic slider (209) and the driving motor (210) is symmetrically arranged above the bottom plate (108), and the end of each connecting rod (211) close to each second electromagnetic slider (209) is provided with a rotary motor for controlling the rotation of each connecting rod (211).

9. The exhaust gas treatment component according to claim 8, characterized in that: The number of the movable nozzles (204) and water pipes is set to three, and each of the movable nozzles (204) and water pipes is distributed in a circular array on the outer surface of the atomizing device (201); A first electromagnetic slider (208) is provided on the top of the water pipe (206), and the water pipe (206) is slidably connected to the top of the processing chamber (106) via the first electromagnetic slider (208). A micro motor (207) is provided on the outer surface of the water pipe (206), and the output end of the micro motor (207) is connected to the end of the water pipe (206).

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