An exhaust gas treatment device and a laboratory ventilation system

Abstract

The present invention relates to the technical field of gas treatment, and more specifically, to an exhaust gas treatment device and a laboratory ventilation system. The present application provides an exhaust gas treatment device, comprising: a casing, a plurality of exhaust gas filter elements and a plurality of blocking members; an air inlet, an air outlet and a plurality of insertion interfaces are provided on the casing; the plurality of insertion interfaces are located between the air inlet and the air outlet, and the plurality of insertion interfaces are used for plugging and matching with the plurality of exhaust gas filter elements; the plurality of blocking members are arranged on the casing to plug and fix the plurality of exhaust gas filter elements or seal the plurality of insertion interfaces; the plurality of exhaust gas filter elements are used for filtering the exhaust gas entering through the air inlet and discharged through the air outlet. The present invention provides an exhaust gas treatment device, which can not only be placed indoors for use, but also be installed outdoors for use without being affected by the climate.

Description

Technical Field

[0001] The present invention relates to the technical field of gas treatment, and more particularly to an exhaust gas treatment device and a laboratory ventilation system. Background Art

[0002] In the prior art, for the treatment of exhaust gas, spray treatment is generally relied on a spray tower. However, the volume of the spray tower is large and it can only be placed outdoors for use. In cold winters, the outdoor spray tower is prone to icing and rusting, which is not convenient for use. Summary of the Invention

[0003] The purpose of the present invention is to provide an exhaust gas treatment device and a laboratory ventilation system, which can effectively solve the problems in the prior art. The present invention provides an exhaust gas treatment device, which can not only be placed indoors for use, but also be installed outdoors for use, without being affected by the climate.

[0004] To achieve the above object, the present application provides an exhaust gas treatment device, including: a housing, a plurality of exhaust gas filtering members, and a plurality of blocking members;

[0005] An air inlet, an air outlet, and a plurality of insertion interfaces are provided on the housing; the plurality of insertion interfaces are located between the air inlet and the air outlet, and the plurality of insertion interfaces are used for plugging and matching with the plurality of exhaust gas filtering members; the plurality of blocking members are arranged on the housing to plug and fix the plurality of exhaust gas filtering members or to close the plurality of insertion interfaces; the plurality of exhaust gas filtering members are used for filtering the exhaust gas entering through the air inlet and discharged through the air outlet.

[0006] Optionally, the blocking member includes: a plugging baffle, an L-shaped slider, an inclined connecting rod, a pushing slider, a compression spring, a horizontal shaft, and a bearing seat; the plugging baffle is slidably fitted in a slide groove of the housing; the slide groove is communicated with the insertion interface; the plugging baffle is used for plugging and fixing the exhaust gas filtering member or closing the insertion interface; the L-shaped slider is fixedly connected to the plugging baffle; the L-shaped slider is slidably fitted in a guiding slide groove communicated with the slide groove; one end of two inclined connecting rods is rotatably connected to the L-shaped slider, and the other ends of the two inclined connecting rods are respectively movably connected to a pushing slider; the two pushing sliders are slidably fitted on the horizontal shaft; two bearing seats are fixedly connected to two ends of the horizontal shaft respectively, and the two bearing seats are relatively fixedly connected to the housing; a compression spring is arranged between the adjacent pushing slider and the bearing seat; the compression spring is sleeved on the horizontal shaft.

[0007] Optionally, the exhaust gas filter element includes: a rectangular plug-in frame, a handle, a circular filter plate, a linkage shaft, and a bearing bracket; a positioning slot for sealing plug-in fit with the plugging baffle is provided on the rectangular plug-in frame; the handle is fixedly connected to the outer end of the rectangular plug-in frame; the inner end of the rectangular plug-in frame passes through the plugging opening and is in sealing plug-in fit inside the casing; the circular filter plate is in sealing rotational fit in the circular through hole in the middle of the rectangular plug-in frame, and the circular filter plate is located inside the casing; the middle of the circular filter plate is fixedly connected to the linkage shaft; the linkage shaft is in rotational fit on the bearing bracket; the bearing bracket is fixedly connected to the rectangular plug-in frame.

[0008] Optionally, the circular filter plate is an acidic gas filter plate, an alkaline gas filter plate, or a volatile organic compound filter plate; the acidic gas filter plate is made of modified activated carbon and an alkaline substance; the alkaline gas filter plate is made of modified activated carbon and an acidic substance; the volatile organic compound filter plate is made of modified activated carbon and potassium permanganate.

[0009] Optionally, the exhaust gas treatment device further includes a driving member; the driving member includes: a servo motor, a friction drive disk, a friction linkage disk, a rotating shaft, a hexagonal prism, and an adjusting bracket; the servo motor is fixedly connected to the tail end cover of the casing through a motor bracket; the friction drive disk is fixedly connected to the output shaft of the servo motor; the friction drive disk is vertically frictionally connected to the friction linkage disk; the friction linkage disk is fixedly connected to the rotating shaft; the rotating shaft is in rotational fit on the adjusting bracket; the adjusting bracket is connected to the tail end cover; the rotating shaft is in sealing rotational fit on the tail end cover; the rotating shaft is fixedly connected to the hexagonal prism; the hexagonal prism is in sealing plug-in fit in the hexagonal through holes of the linkage shafts of several exhaust gas filter elements to drive the circular filter plates of several exhaust gas filter elements to rotate through the several linkage shafts.

[0010] Optionally, the exhaust gas treatment device further includes a swirl member; the swirl member includes: a friction drive ring, a friction linkage wheel, a rotating shaft, and a swirl impeller; the friction drive ring is fixedly connected to the circular filter plate through a short column and is collinear with the axis of the circular filter plate; the friction drive ring is frictionally connected to the friction linkage wheel; the friction linkage wheel is fixedly connected to the rotating shaft; the rotating shaft is in rotational fit on the rectangular plug-in frame; the swirl impeller is fixedly connected to the rotating shaft.

[0011] Optionally, the exhaust gas treatment device also includes an adjusting frame; the adjusting frame includes: a frame body, an adjusting screw and a tensioning spring; the two ends of the frame body are rotatably connected to the rotating shaft and the adjusting screw respectively; the adjusting screw is provided with two axial retaining rings, and the two axial retaining rings are respectively clamped at the two ends of the frame body; the inner end of the adjusting screw is threadedly engaged with the tail end cover; the outer end of the adjusting screw is fixedly connected with an adjusting rotating block; the tensioning spring is sleeved on the adjusting screw; the two ends of the tensioning spring are respectively fixedly connected to the frame body and the tail end cover.

[0012] Optionally, the exhaust gas treatment device also includes an exhaust pipe fitting; the exhaust pipe fitting includes: a circular exhaust pipe, an exhaust fan, a cross seat and a worm gear; the circular exhaust pipe is fixedly connected to the air outlet of the casing; the cross seat is fixedly connected to the circular exhaust pipe; the exhaust fan rotatably fits in the circular exhaust pipe; the fan shaft of the exhaust fan rotatably fits on the cross seat; the worm gear is fixed to the fan shaft; the rotating shaft is a worm structure, and the rotating shaft meshes with the worm gear to drive the exhaust fan to cooperate with the circular exhaust pipe for exhaust.

[0013] Optionally, the exhaust gas treatment device also includes two adjustable supports, which are respectively connected to the two ends of the casing; the adjustable support includes: a support body, a fixed seat plate, a movable seat plate, a screw and an adjusting wheel; the casing is slidingly fitted in the support body; the movable seat plate is fixedly connected to the support body; the movable seat plate is threadedly fitted to the middle part of the screw; the two ends of the screw are respectively rotatably fitted to a fixed seat plate, and both fixed seat plates are fixed to the casing; the adjusting wheel is fixed to the screw.

[0014] Optionally, a laboratory ventilation system comprises a fume hood and any of the above-mentioned waste gas treatment devices; the interior of the fume hood is divided into a supply air area and an exhaust air area by a partition; an air intake pipe with an air intake fan is arranged in the supply air area, and outdoor air is drawn into the supply air area through the air intake fan, and is sent to the room after being heated and temperature-controlled by an electric heating plate inside the supply air area; an exhaust pipe with an exhaust fan is arranged in the exhaust air area, and the exhaust pipe is connected to the air inlet of the waste gas treatment device, so as to send the indoor gas to the waste gas treatment device through the fume hood for treatment.

[0015] Advantages of the present invention: An exhaust gas treatment device of the present invention can not only be placed indoors for use, but also be installed outdoors without being affected by the climate. It adopts a snap-fit structure of a plurality of exhaust gas filter elements and a plurality of blocking elements, which is convenient for disassembling and replacing the exhaust gas filter elements and also convenient for selecting the number of installed exhaust gas filter elements according to different needs. The blocking element can not only play a role in clamping and fixing the exhaust gas filter element, but also play a role in closing the insertion port when the exhaust gas filter element is not installed. It adopts a prefabricated circular filter plate, and an acidic gas filter plate or an alkaline gas filter plate or a volatile organic compound filter plate can be selected for single use, or they can be used in combination, which is convenient for various treatments of the gases in the experimental exhaust gas, reduces the pollution to the atmosphere after its emission, and the combined use of multiple filter plates replaces the single gas treatment by the spraying method, improves the gas treatment efficiency, reduces the floor space of the equipment, and reduces the waste of water energy. It adopts a driving member to drive a plurality of circular filter plates to rotate, which is convenient for improving the contact effect between the circular filter plates and the gas. When the circular filter plates rotate, they can synchronously drive the swirling members to work, and the swirling members drive the gas to swirl and mix, thereby improving the filtration reaction effect. It adopts an exhaust pipe member that can work synchronously under the drive of the driving member. The exhaust pipe member plays an auxiliary role in pumping and exhausting gas, improves the exhaust effect during the filtration of the present invention, and prevents gas backflow.

[0016] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, makes a detailed description as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the related art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 Overall schematic diagram provided for an embodiment of the present invention Figure 1 ;

[0019] Figure 2 Overall schematic diagram provided for an embodiment of the present invention Figure 2 ;

[0020] Figure 3 Cross-sectional structure schematic diagram provided for an embodiment of the present invention;

[0021] Figure 4 Schematic diagram of the housing provided for an embodiment of the present invention;

[0022] Figure 5 Schematic diagram of the exhaust gas filter element provided for an embodiment of the present inventionFigure 1 ;

[0023] Figure 6 Schematic diagram of the exhaust gas filter provided by the embodiment of the present invention Figure 2 ;

[0024] Figure 7 Schematic diagram of the blocking member provided by the embodiment of the present invention;

[0025] Figure 8 Schematic diagram of the driving member provided by the embodiment of the present invention;

[0026] Figure 9 Schematic diagram of the adjusting frame provided by the embodiment of the present invention;

[0027] Figure 10 Schematic diagram of the swirl member provided by the embodiment of the present invention;

[0028] Figure 11 Schematic diagram of the exhaust pipe member provided by the embodiment of the present invention;

[0029] Figure 12 Schematic diagram of the adjustable support provided by the embodiment of the present invention.

[0030] Icon: housing 1; air inlet 101; air outlet 102; socket 103; exhaust gas filter 2; rectangular socket rack 201; handle 202; circular filter plate 203; linkage shaft 204; bearing frame 205; blocking member 3; socket baffle 301; L-shaped slider 302; inclined connecting rod 303; pushing slider 304; compression spring 305; horizontal shaft 306; bearing seat 307; driving member 4; servo motor 401; friction drive disc 402; friction linkage disc 403; rotating shaft 404; hexagonal prism 405; adjusting frame 406; frame body 406A; adjusting screw 406B; tension spring 406C; swirl member 5; friction drive ring 501; friction linkage wheel 502; rotating shaft 503; swirl impeller 504; exhaust pipe member 6; circular exhaust pipe 601; exhaust fan 602; horizontal seat 603; worm gear 604; adjustable support 7; support body 701; fixed seat plate 702; movable seat plate 703; lead screw 704; adjusting wheel 705. Detailed implementation manners

[0031] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present application.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0033] It should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0034] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meanings of "plural" and "several" are two or more, unless otherwise specifically defined.

[0035] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the conditions for the present application to be implemented. Therefore, they do not have a substantial technical meaning. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present application can produce and the purposes that can be achieved, should still fall within the scope that the technical content disclosed in the present application can cover. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear narration and are not used to limit the scope for the present application to be implemented. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope that the present application can be implemented.

[0036] The following will further elaborate on the present invention in conjunction with the attached Figures 1-12 drawings. Specific Embodiment 1:

[0038] As Figures 1-12As shown in the figure, the waste gas treatment device includes: a housing 1, a plurality of waste gas filter elements 2, and a plurality of blocking members 3; an air inlet 101, an air outlet 102, and a plurality of insertion interfaces 103 are provided on the housing 1; the plurality of insertion interfaces 103 are located between the air inlet 101 and the air outlet 102, and the plurality of insertion interfaces 103 are used for plugging and mating with the plurality of waste gas filter elements 2; the plurality of blocking members 3 are arranged on the housing 1 to plug and fix the plurality of waste gas filter elements 2 or to close the plurality of insertion interfaces 103; the plurality of waste gas filter elements 2 are used for filtering the waste gas entering through the air inlet 101 and discharged through the air outlet 102. The housing 1 can be installed indoors or outdoors. The air inlet 101 of the housing 1 is connected to an exhaust duct with an exhaust fan, so that the indoor gas enters the interior of the housing 1 through the air inlet 101. After being filtered by the plurality of waste gas filter elements 2 in the interior of the housing 1 in sequence, it is discharged through the air outlet 102; the waste gas filter element 2 can be an activated carbon adsorption filter plate or a prefabricated filter plate with different filtration reaction effects, such as an acidic gas filter plate, an alkaline gas filter plate, a volatile organic compound filter plate, etc. A waste gas treatment device of the present invention can not only be placed indoors for use, but also be installed outdoors for use, without being affected by the climate; adopting the clamping and matching structure of a plurality of waste gas filter elements 2 and a plurality of blocking members 3 is convenient for disassembling and replacing the waste gas filter elements 2, and is also convenient for selecting the number of waste gas filter elements 2 to be installed according to different needs; the blocking member 3 can not only play a role in clamping and fixing the waste gas filter element 2, but also play a role in closing the insertion interface 103 when the waste gas filter element 2 is not installed. Specific Embodiment 2:

[0040] As Figures 1-12As shown, the blocking member 3 includes: a plug-in baffle 301, an L-shaped slider 302, an oblique connecting rod 303, a pushing slider 304, a compression spring 305, a transverse shaft 306 and a bearing seat 307; the plug-in baffle 301 is slidably fitted in the slide groove of the housing 1; the slide groove is connected to the plug-in port 103; the plug-in baffle 301 is used to plug and fix the exhaust gas filter 2 or to close the plug-in port 103; the L-shaped slider 302 is fixed to the plug-in baffle 301; the L-shaped slider 302 is slidably fitted in the guide connected to the slide groove In the slide groove; the L-shaped slider 302 is rotatably connected to one end of the two oblique connecting rods 303, and the other ends of the two oblique connecting rods 303 are respectively movably connected to a pushing slider 304; the two pushing sliders 304 are slidably fitted on the horizontal axis 306; the two ends of the horizontal axis 306 are respectively fixed to a bearing seat 307, and the two bearing seats 307 are relatively fixed to the casing 1; the compression spring 305 is provided between the adjacent pushing sliders 304 and the bearing seats 307; the compression spring 305 is sleeved on the horizontal axis 306. When it is necessary to install the exhaust gas filter 2, the inclined connecting rod 303 on the L-shaped slider 302 is moved to drive the pushing slider 304 to slide on the horizontal axis 306 to compress the compression spring 305, and at the same time, the L-shaped slider 302 is driven to slide in the guide slide groove connected to the slide groove, thereby driving the plug-in baffle 301 to disengage the closure of the plug-in interface 103, so that the exhaust gas filter 2 can be installed. After that, after loosening the inclined connecting rod 303, the plug-in baffle 301 can be plugged into the exhaust gas filter 2 under the elastic force of the compression spring 305 to clamp and fix it. The structural setting of the clamping member 3 facilitates the installation or disassembly of the exhaust gas filter 2; when there is no need to install the exhaust gas filter 2, the plug-in baffle 301 is in a state of being plugged in the plug-in interface 103, and the plug-in interface 103 is closed. Specific implementation method three:

[0042] like Figures 1-12As shown in the figure, the exhaust gas filter element 2 includes: a rectangular plug-in frame 201, a handle 202, a circular filter plate 203, a linkage shaft 204, and a bearing frame 205; a positioning slot for sealing plug-in cooperation with the plugging baffle 301 is provided on the rectangular plug-in frame 201; the outer end of the rectangular plug-in frame 201 is fixedly connected to the handle 202; the inner end of the rectangular plug-in frame 201 passes through the plug-in port 103 and is sealingly plugged and fitted inside the casing 1; the circular filter plate 203 is sealingly rotatably fitted in the circular through hole in the middle of the rectangular plug-in frame 201, and the circular filter plate 203 is located inside the casing 1; the middle of the circular filter plate 203 is fixedly connected to the linkage shaft 204; the linkage shaft 204 is rotatably fitted on the bearing frame 205; the bearing frame 205 is fixedly connected to the rectangular plug-in frame 201. After the rectangular plug-in frame 201 inside the exhaust gas filter element 2 is plugged into the plug-in port 103, it is fixed by plugging the plugging baffle 301 into the positioning slot of the rectangular plug-in frame 201; the circular filter plate 203 is used for filtering and reacting to the gas, and the circular filter plate 203 is an activated carbon adsorption filter plate or a prefabricated filter plate with different filtering and reacting effects. Specific Embodiment Four:

[0044] As Figures 1-12 shown in the figure, the circular filter plate 203 is an acidic gas filter plate or a basic gas filter plate or a volatile organic compound filter plate; the acidic gas filter plate is made of modified activated carbon and a basic substance and is used to react with acidic gases to remove the acidic gases in the gas; the basic gas filter plate is made of modified activated carbon and an acidic substance and is used to react with basic gases to remove the basic gases in the gas; the volatile organic compound filter plate is made of modified activated carbon and potassium permanganate and is used to react with the volatile organic compounds in the gas to remove the volatile organic compounds in the gas. By using prefabricated circular filter plates, an acidic gas filter plate or a basic gas filter plate or a volatile organic compound filter plate can be selected for single use, or they can be used in combination, which is convenient for various treatments of the gases in the experimental exhaust gas, reduces the pollution to the atmosphere after its emission, and the combined use of multiple filter plates replaces the single gas treatment by the spraying method, improves the gas treatment efficiency, reduces the floor space of the equipment, and reduces the waste of water energy. Specific Embodiment Five:

[0046] As Figures 1-12As shown, the waste gas treatment device further includes a driving member 4; the driving member 4 includes: a servo motor 401, a friction driving disk 402, a friction linkage disk 403, a rotating shaft 404, a hexagonal prism 405, and an adjusting bracket 406; the servo motor 401 is fixedly connected to the tail end cover of the housing 1 through a motor bracket; the friction driving disk 402 is fixedly connected to the output shaft of the servo motor 401; the friction driving disk 402 is vertically frictionally connected to the friction linkage disk 403; the friction linkage disk 403 is fixedly connected to the rotating shaft 404; the rotating shaft 404 is rotatably fitted on the adjusting bracket 406; the adjusting bracket 406 is connected to the tail end cover; the rotating shaft 404 is rotatably and sealingly fitted on the tail end cover; the rotating shaft 404 is fixedly connected to the hexagonal prism 405; the hexagonal prism 405 is sealingly inserted into the hexagonal through holes of the linkage shafts 204 of several of the waste gas filtering members 2 to drive several of the circular filter plates 203 to rotate through the several linkage shafts 204. Driving the multiple circular filter plates 203 to perform rotational motion by the driving member 4 is convenient for improving the contact effect between the circular filter plates 203 and the gas; after the servo motor 401 inside the driving member 4 is powered on and started, it can drive the friction driving disk 402 to rotate. When the friction driving disk 402 rotates, it can drive the friction linkage disk 403 to rotate. When the friction linkage disk 403 rotates, it drives the rotating shaft 404 and the hexagonal prism 405 to rotate. The hexagonal prism 405 is inserted into the hexagonal through holes of the linkage shafts 204 to drive the linkage shafts 204 to rotate, and then drive the circular filter plates 203 to rotate through the linkage shafts 204; the rotating shaft 404 can slide on the tail end cover under the drive of the adjusting bracket 406, so as to drive the hexagonal prism 405 to insert into or separate from the hexagonal through holes of the linkage shafts 204, which is convenient for the installation or disassembly of the waste gas filtering member 2. The hexagonal prism 405 also plays a role in relatively fixing the waste gas filtering member 2, preventing the problem that the worker accidentally touches the blocking member 3 and causes the waste gas filtering member 2 to fall off. With double locking, the safety is better. Specific Embodiment Six:

[0048] As Figures 1-12As shown, the waste gas treatment device further includes a swirl member 5; the swirl member 5 includes a friction drive ring 501, a friction linkage wheel 502, a rotating shaft 503, and a swirl impeller 504; the friction drive ring 501 is fixedly connected to the circular filter plate 203 through a short column and is collinear with the axis of the circular filter plate 203; the friction drive ring 501 is frictionally connected to the friction linkage wheel 502; the friction linkage wheel 502 is fixedly connected to the rotating shaft 503; the rotating shaft 503 is rotationally fitted on the rectangular socket 201; the swirl impeller 504 is fixedly connected to the rotating shaft 503. When the circular filter plate 203 rotates, it can drive the swirl member 5 to work synchronously, and the swirl member 5 drives the gas to swirl and mix, thereby improving the filtering reaction effect; when the circular filter plate 203 rotates, it can drive the friction drive ring 501 to rotate, the friction drive ring 501 frictionally drives the friction linkage wheel 502 to rotate, and when the friction linkage wheel 502 rotates, it drives the swirl impeller 504 to rotate through the rotating shaft 503, thereby driving the swirl impeller 504 to perform swirl work and improving the reaction effect between the gas and the circular filter plate 203. Specific Embodiment Seven:

[0050] As Figures 1-12As shown, the waste gas treatment device further includes an adjustment bracket 406; the adjustment bracket 406 includes: a bracket body 406A, an adjustment screw 406B, and a tension spring 406C; both ends of the bracket body 406A are respectively rotatably connected to the rotating shaft 404 and the adjustment screw 406B; two axial retaining rings are provided on the adjustment screw 406B, and the two axial retaining rings are respectively clamped at both ends of the bracket body 406A; the inner end of the adjustment screw 406B is threadedly engaged with the tail end cover; an adjustment knob is fixedly connected to the outer end of the adjustment screw 406B; the tension spring 406C is sleeved on the adjustment screw 406B; both ends of the tension spring 406C are respectively fixedly connected to the bracket body 406A and the tail end cover. The adjustment bracket 406 is used to adjust the position of the rotating shaft 404. After rotating the adjustment screw 406B to disengage it from the tail end cover, the rotating shaft 404 and the hexagonal prism 405 can be pulled outward, so that the hexagonal prism 405 can be inserted into or separated from the hexagonal through hole of the linkage shaft 204, facilitating the installation or disassembly of the waste gas filter element 2. The hexagonal prism 405 also plays a role in relatively fixing the waste gas filter element 2, preventing the problem that the worker accidentally touches the blocking part 3 and causes the waste gas filter element 2 to fall off. With double locking, the safety is better; in addition, by rotating the adjustment screw 406B, while changing the distance between the bracket body 406A and the tail end cover, the contact position between the friction transmission ring 501 and the friction linkage wheel 502 can be changed, thereby changing the transmission ratio and realizing the adjustment of the rotation speed of the circular filter plate 203 driven by it; the tension spring 406C plays a role of tensioning and limiting, improving the stability after the position adjustment of the bracket body 406A and the tail end cover. Detailed Embodiment VIII:

[0052] As Figures 1-12As shown, the exhaust gas treatment device also includes an exhaust pipe fitting 6; the exhaust pipe fitting 6 includes: a circular exhaust pipe 601, an exhaust fan 602, a cross seat 603 and a worm gear 604; the circular exhaust pipe 601 is fixedly connected to the air outlet 102 of the casing 1; the cross seat 603 is fixedly connected to the circular exhaust pipe 601; the exhaust fan 602 is rotatably fitted in the circular exhaust pipe 601; the fan shaft of the exhaust fan 602 is rotatably fitted on the cross seat 603; the worm gear 604 is fixedly connected to the fan shaft; the rotating shaft 404 is a worm structure, and the rotating shaft 404 is meshingly connected to the worm gear 604 to drive the exhaust fan 602 to cooperate with the circular exhaust pipe 601 for exhaust. An exhaust pipe member 6 is used which can work synchronously with the drive member 4, and the exhaust pipe member 6 plays a role of assisting air extraction and exhaust, thereby improving the exhaust effect during filtration of the present invention and preventing gas backflow; the rotating shaft 404 is a worm structure, and when the rotating shaft 404 rotates, the meshing transmission drives the worm wheel 604 to rotate, and the worm wheel 604 drives the exhaust fan 602 to rotate through the fan shaft, so as to drive the exhaust fan 602 to cooperate with the circular exhaust pipe 601 for exhaust; and the worm structure of the rotating shaft 404 and the transmission structure design of the worm wheel 604 do not affect the horizontal movement of the rotating shaft 404, and will not hinder the rotating shaft 404 from driving the hexagonal prism 405 to be inserted into the hexagonal through hole of the linkage shaft 204 or to be separated from it. Specific implementation method nine:

[0054] like Figures 1-12 As shown, the exhaust gas treatment device also includes two adjustable supports 7, and the two adjustable supports 7 are respectively connected to the two ends of the casing 1; the adjustable support 7 includes: a support body 701, a fixed seat plate 702, a movable seat plate 703, a screw 704 and an adjusting wheel 705; the casing 1 is slidably fitted in the support body 701; the movable seat plate 703 is fixedly connected to the support body 701; the movable seat plate 703 is threadedly fitted in the middle of the screw 704; the two ends of the screw 704 are respectively rotatably fitted to a fixed seat plate 702, and the two fixed seat plates 702 are both fixedly connected to the casing 1; the adjusting wheel 705 is fixedly connected to the screw 704. The adjustable support 7 is used to support the casing 1 or install the casing on a building; and the relative position of the support body 701 and the casing 1 can be adjusted to avoid obstacles during installation; rotating the adjusting wheel 705 drives the screw 704 to rotate, and when the screw 704 rotates, the contact position between the screw and the movable seat plate 703 is changed, thereby realizing the adjustment of the relative position of the fixed seat plate 702 and the movable seat plate 703, and then realizing the adjustment of the relative position of the support body 701 and the casing 1. Specific implementation method ten:

[0056] like Figures 1-12As shown in the figure, a laboratory ventilation system includes a fume hood and an exhaust gas treatment device described in any one of Embodiment 1 to Embodiment 10 of the specific implementation manners; the interior of the fume hood is partitioned into a makeup air area and an exhaust air area by a partition; an intake pipe with an intake fan is arranged in the makeup air area, and outdoor air is drawn into the makeup air area through the intake fan, and after being heated and temperature-adjusted by an electric heating plate inside the makeup air area, it is sent into the room; an exhaust pipe with an exhaust fan is arranged in the exhaust air area, and the exhaust pipe is connected to the air inlet 101 of the exhaust gas treatment device to send indoor gas into the exhaust gas treatment device through the fume hood for treatment.

[0057] Principle: An exhaust gas treatment device of the present invention can not only be placed indoors for use, but also be installed outdoors for use, without being affected by the climate; a clamping and matching structure of a plurality of exhaust gas filtering elements 2 and a plurality of clamping members 3 is adopted, which is convenient for disassembling and replacing the exhaust gas filtering elements 2, and is also convenient for selecting the number of exhaust gas filtering elements 2 to be installed according to different needs; the clamping member 3 can not only play a role in clamping and fixing the exhaust gas filtering element 2, but also play a role in closing the insertion port 103 when the exhaust gas filtering element 2 is not installed.

[0058] The various embodiments in the specification are described in a progressive manner. The key points of each embodiment are the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of this application, several improvements and modifications can be made to this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

[0059] It should also be noted that in this specification, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

Claims

1. An exhaust gas treatment device, characterized in that, Including: A casing (1), a plurality of exhaust gas filter elements (2) and a plurality of blocking members (3); The casing (1) is provided with an air inlet (101), an air outlet (102) and a plurality of insertion interfaces (103); the plurality of insertion interfaces (103) are located between the air inlet (101) and the air outlet (102), and the plurality of insertion interfaces (103) are used for plugging and cooperating with the plurality of exhaust gas filter elements (2); the plurality of blocking members (3) are arranged on the casing (1) to plug and fix the plurality of exhaust gas filter elements (2) or to close the plurality of insertion interfaces (103); the plurality of exhaust gas filter elements (2) are used for filtering the exhaust gas entering through the air inlet (101) and discharged through the air outlet (102); The blocking member (3) includes: a plugging baffle (301) slidably fitted in the slide plate groove of the casing (1); The exhaust gas filter element (2) includes: a rectangular plugging frame (201); a positioning slot for sealing plugging and cooperating with the plugging baffle (301) is provided on the rectangular plugging frame (201); a lifting handle (202) is fixedly connected to the outer end of the rectangular plugging frame (201); the inner end of the rectangular plugging frame (201) passes through the insertion interface (103) and is hermetically plugged and fitted in the casing (1); a circular filter plate (203) is hermetically and rotatably fitted in the circular through hole in the middle of the rectangular plugging frame (201), and the circular filter plate (203) is located inside the casing (1); the middle of the circular filter plate (203) is fixedly connected to the linkage shaft (204); the linkage shaft (204) is rotatably fitted on the bearing support frame (205); the bearing support frame (205) is fixedly connected to the rectangular plugging frame (201); the circular filter plate (203) is an acidic gas filter plate or an alkaline gas filter plate or a volatile organic compound filter plate; It further includes a driving member (4); the driving member (4) includes: a servo motor (401); the servo motor (401) is fixedly connected to the tail end cover of the casing (1) through a motor bracket; a friction driving disc (402) is fixedly connected to the output shaft of the servo motor (401); the friction driving disc (402) is vertically frictionally connected to a friction linkage disc (403); the friction linkage disc (403) is fixedly connected to a rotating shaft (404); the rotating shaft (404) is rotatably fitted on an adjusting frame (406); the adjusting frame (406) is connected to the tail end cover; the rotating shaft (404) is hermetically rotatably fitted on the tail end cover; the rotating shaft (404) is fixedly connected to a hexagonal prism (405); the hexagonal prism (405) is hermetically plugged in the hexagonal through hole of the linkage shaft (204) of the plurality of exhaust gas filter elements (2) to drive the plurality of circular filter plates (203) to rotate through the plurality of linkage shafts (204); It further includes a swirl member (5); the swirl member (5) includes: a friction drive ring (501), a friction linkage wheel (502), a rotating shaft (503), and a swirl impeller (504); the friction drive ring (501) is fixedly connected to the circular filter plate (203) through a short column and is collinear with the axis of the circular filter plate (203); the friction drive ring (501) is frictionally connected to the friction linkage wheel (502) for transmission; the friction linkage wheel (502) is fixedly connected to the rotating shaft (503); the rotating shaft (503) is rotationally fitted on the rectangular socket frame (201); the swirl impeller (504) is fixedly connected to the rotating shaft (503).

2. The exhaust gas treatment device according to claim 1, characterized in that, The blocking member (3) further includes: an L-shaped slider (302), an inclined connecting rod (303), a pushing slider (304), a compression spring (305), a horizontal shaft (306), and a bearing seat (307); the slide plate groove communicates with the insertion port (103); the insertion baffle (301) is used for plugging and fixing the exhaust gas filter element (2) or closing the insertion port (103); the L-shaped slider (302) is fixedly connected to the insertion baffle (301); the L-shaped slider (302) is slidably fitted in a guiding chute communicating with the slide plate groove; one end of each of two inclined connecting rods (303) is rotatably connected to the L-shaped slider (302), and the other end of each of the two inclined connecting rods (303) is movably connected to a pushing slider (304); the two pushing sliders (304) are slidably fitted on the horizontal shaft (306); bearing seats (307) are fixedly connected to both ends of the horizontal shaft (306), and the two bearing seats (307) are relatively fixedly connected to the machine shell (1); the compression spring (305) is provided between the adjacent pushing slider (304) and the bearing seat (307); the compression spring (305) is sleeved on the horizontal shaft (306).

3. The exhaust gas treatment device according to claim 1, characterized in that, The acid gas filter plate is made of modified activated carbon and an alkaline substance; the alkaline gas filter plate is made of modified activated carbon and an acidic substance; the volatile organic compound filter plate is made of modified activated carbon and potassium permanganate.

4. The exhaust gas treatment device according to claim 1, characterized in that It further includes an adjusting frame (406); the adjusting frame (406) includes: a frame body (406A), an adjusting screw (406B), and a tension spring (406C); both ends of the frame body (406A) are rotatably connected to the rotating shaft (404) and the adjusting screw (406B) respectively; two axial retaining rings are provided on the adjusting screw (406B), and the two axial retaining rings are respectively blocked at both ends of the frame body (406A); the inner end of the adjusting screw (406B) is threadedly fitted on the tail end cover; an adjusting rotating block is fixedly connected to the outer end of the adjusting screw (406B); the tension spring (406C) is sleeved on the adjusting screw (406B); both ends of the tension spring (406C) are fixedly connected to the frame body (406A) and the tail end cover respectively.

5. The exhaust gas treatment device according to claim 4, characterized in that, The invention also comprises an exhaust pipe fitting (6); the exhaust pipe fitting (6) comprises: a circular exhaust pipe (601), an exhaust fan (602), a horizontal seat (603) and a worm gear (604); the circular exhaust pipe (601) is fixedly connected to the air outlet (102) of the housing (1); the horizontal seat (603) is fixedly connected to the circular exhaust pipe (601); the exhaust fan (602) is rotatably engaged in the circular exhaust pipe (601); the fan shaft of the exhaust fan (602) is rotatably engaged on the horizontal seat (603); the worm gear (604) is fixedly connected to the fan shaft; the rotating shaft (404) is a worm structure, and the rotating shaft (404) is meshedly connected to the worm gear (604) to drive the exhaust fan (602) to cooperate with the circular exhaust pipe (601) to exhaust air.

6. The exhaust gas treatment device according to claim 1, wherein The invention also comprises two adjustable supports (7), which are respectively connected to two ends of the housing (1); the adjustable support (7) comprises: a support body (701), a fixed seat plate (702), a movable seat plate (703), a lead screw (704) and an adjusting wheel (705); the housing (1) is slidably fitted in the support body (701); the movable seat plate (703) is fixedly connected to the support body (701); the movable seat plate (703) is threadedly fitted to the middle part of the lead screw (704); the two ends of the lead screw (704) are respectively rotatably fitted to a fixed seat plate (702), and both fixed seat plates (702) are fixedly connected to the housing (1); and the adjusting wheel (705) is fixedly connected to the lead screw (704).

7. A laboratory ventilation system, characterized in that, It comprises a fume hood and the waste gas treatment device according to any one of claims 1 to 6; the interior of the fume hood is divided into a supply air area and an exhaust air area by a partition; an air inlet pipe with an air inlet fan is arranged in the supply air area, outdoor air is drawn into the supply air area by the air inlet fan, and is sent to the room after being heated and temperature-controlled by an electric heating plate inside the supply air area; an exhaust pipe with an exhaust fan is arranged in the exhaust air area, and the exhaust pipe is connected to the air inlet (101) of the waste gas treatment device so as to send indoor gas to the waste gas treatment device for treatment through the fume hood.

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