Gas collection type toxic gas purifier

Abstract

The utility model discloses a gas collection type toxic gas purifier which comprises a shell, a moving arm, a gas collection hood, a purification mechanism, a suction fan and a suction hood, wherein the purification mechanism, the suction fan and the suction hood are arranged in the shell; an exhaust outlet is formed in the side wall of the shell, and the suction fan is used for sucking outside air into the moving arm from the air collecting hood, then sucking the outside air into the shell, sucking the air purified by the purification mechanism into the air suction hood and then exhausting the air from the exhaust outlet; the moving arm comprises a plurality of sections of arm bodies, cylinders arranged at the end parts of the arm bodies, and rotating shafts for rotationally connecting the adjacent cylinders; and inner cavities of the arm body and the cylinder body are communicated with each other. By arranging the multiple sections of arm bodies capable of freely rotating and extending, the gas collecting hood can be close to places where gas pollutants are generated as much as possible to cover pollution sources at different positions, overflow of the gas pollutants is avoided to the maximum extent, and the air quality of a laboratory is ensured. The purifier is suitable for purifying radioactive gas, acid gas, alkaline gas, hydrogen sulfide, mercury steam and VOC organic gas.

Description

Technical Field

[0001] This utility model relates to the field of air purification equipment technology, and in particular to a gas-collecting toxic gas purifier. Background Technology

[0002] Air purifiers are widely used in homes, shopping malls, factories, offices, laboratories, and other places. For toxic and harmful gases generated in laboratories, a central exhaust purification system is generally used. However, central exhaust systems are bulky and inconvenient to install, maintain, and use. Moreover, the air intake of a central exhaust system is usually located on the upper part of the laboratory table, far away from the equipment or instruments that generate toxic and harmful gases. Even if the experiment is conducted in a fume hood, there is still a certain risk of gaseous pollutants spilling out, exposing the experimenters to a poor environment.

[0003] It is evident that existing technologies still need improvement and enhancement. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a gas-collecting toxic gas purifier, which aims to shorten the distance between the purifier and the source of gaseous pollutants by setting a movable gas collection hood.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A gas-collecting toxic gas purifier includes a housing, a movable arm communicating with the inner cavity of the housing, a gas-collecting hood disposed at the free end of the movable arm and communicating with the movable arm, and a purification mechanism, a suction fan, and a suction hood disposed inside the housing; the side wall of the housing is provided with an exhaust port, the suction fan is used to draw outside air from the gas-collecting hood into the interior of the movable arm, then into the interior of the housing, and draw the air purified by the purification mechanism into the suction hood and then discharge it from the exhaust port; the movable arm includes multiple arm sections, a cylinder disposed at the end of the arm section, and a rotating shaft for rotatably connecting adjacent cylinder sections; the inner cavities of the arm sections and the cylinder sections are interconnected.

[0007] In the aforementioned gas-collecting toxic gas purifier, the gas collecting hood is provided with a threaded connection part at the connection position with the arm body, and the arm body located at the suction end is detachably connected to the connection part by the thread.

[0008] The gas-collecting toxic gas purifier includes a housing and a door rotatably connected to one side of the housing.

[0009] The aforementioned gas-collecting toxic gas purifier comprises, from top to bottom, a disinfection zone, a purification zone, and a fan zone; an ultraviolet lamp is installed in the disinfection zone; the purification mechanism is located in the purification zone; the suction fan and the suction hood are located in the fan zone; and the exhaust port is located on the side wall of the fan zone.

[0010] The gas-collecting toxic gas purifier is provided with a lamp holder on the inner wall of the disinfection zone, the ultraviolet lamp is detachably installed on the lamp holder, and a cover plate is provided in the direction of the disinfection zone facing the door.

[0011] The gas-collecting toxic gas purifier includes, from top to bottom, a primary filter, a HEPA high-efficiency filter, a first nano-carbon fiber filter, and a second nano-carbon fiber filter.

[0012] In the aforementioned gas-collecting toxic gas purifier, the two inner sidewalls of the purification zone are respectively provided with multiple slots arranged vertically, and the two ends of the primary filter, the HEPA high-efficiency filter, the first nanofiber filter and the second nanofiber filter are respectively engaged with the corresponding slots.

[0013] The gas-collecting toxic gas purifier, wherein the first nanofiber filter and the second nanofiber filter both include a carbon fiber layer composed of multiple layers of stacked nanofibers, and a non-woven fabric support layer disposed on the upper and lower surfaces of the carbon fiber layer.

[0014] In the aforementioned gas-collecting toxic gas purifier, the thickness of the carbon fiber layer is 3-50 mm.

[0015] The gas-collecting toxic gas purifier is provided with casters with brake pads at the bottom of the housing.

[0016] Beneficial effects:

[0017] This invention provides a gas-collecting toxic gas purifier. By setting up a multi-section, freely rotating and extending arm, the gas collection hood can be placed as close as possible to the place where gaseous pollutants are generated, covering the pollution sources in different locations, minimizing the leakage of gaseous pollutants, and ensuring the air quality in the laboratory. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a gas-collecting toxic gas purifier.

[0019] Figure 2 This is a schematic diagram of the suction fan.

[0020] Figure 3 for Figure 1Enlarged view of part A in the middle.

[0021] Figure 4 This is a schematic diagram of the structure of the first nanofiber filter.

[0022] Explanation of main component symbols: 1-House, 11-Outer shell, 111-Exhaust vent, 112-Slot, 12-Door, 2-Moving arm, 21-Arm body, 22-Cylinder body, 23-Rotating shaft, 3-Gas collection hood, 31-Connecting part, 41-UV lamp, 42-Lamp holder, 5-Purification mechanism, 51-Primary filter, 52-HEPA high-efficiency filter, 53-First nano-carbon fiber filter, 531-Carbon fiber layer, 532-Non-woven fabric support layer, 54-Second nano-carbon fiber filter, 6-Exhaust fan, 7-Exhaust hood, 8-Wheel caster. Detailed Implementation

[0023] This utility model provides a gas-collecting toxic gas purifier. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit the scope of protection of this utility model.

[0024] Please see Figure 1 and Figure 2 This utility model provides a gas-collecting toxic gas purifier, including a housing 1, a movable arm 2 communicating with the inner cavity of the housing 1, a gas-collecting hood 3 disposed at the free end of the movable arm 2 and communicating with the movable arm 2, and a purification mechanism 5, a suction fan 6, and a suction hood 7 disposed inside the housing 1; the side wall of the housing 1 is provided with an exhaust port 111, the suction fan 6 is used to draw outside air from the gas-collecting hood 3 into the interior of the movable arm 2, then into the interior of the housing 1, and draw the air purified by the purification mechanism 5 into the suction hood 7 and then discharge it from the exhaust port 111; the movable arm 2 includes multiple arm sections 21, a cylinder 22 disposed at the end of the arm section 21, and a rotating shaft 23 for rotatably connecting adjacent cylinders 22; the inner cavities of the arm section 21 and the cylinder 22 are interconnected.

[0025] In practical applications, the purifier is placed beside the location where toxic and harmful gases are generated. The user adjusts the movable arm 2, allowing each section of the arm 21 to rotate and extend freely around the rotating axis 23. This allows the gas collection hood 3 to be positioned as close as possible to the location of the toxic gas, flexibly targeting and covering pollution sources in different locations. The suction fan 6 is activated via a switch / control panel on the housing 1. Under the action of the suction fan 6, the toxic gases are drawn into the gas collection hood 3 and then into the interior of the housing 1. The purification mechanism 5 physically adsorbs and chemically decomposes the inhaled gases to efficiently remove gaseous pollutants. The purified air is then discharged from the housing 1 through the exhaust port 111, thus continuously improving the air quality in the laboratory.

[0026] Specifically, the purifier also has an internal control mechanism that can change the frequency of the suction fan 6, thereby adjusting the air volume. Alternatively, sensors such as gas concentration sensors and airflow sensors can be installed inside the housing 1. These sensors are interlocked with the control mechanism to achieve functions such as automatic fan speed adjustment or alarms.

[0027] The aforementioned gas-collecting toxic gas purifier, by setting up multiple freely rotating and extending arms 21, allows the gas collection hood 3 to be as close as possible to the place where gaseous pollutants are generated, covering the pollution sources in different locations, minimizing the leakage of gaseous pollutants, and ensuring the air quality in the laboratory.

[0028] Please see Figure 1 In some embodiments, a threaded connection part 31 is provided at the connection position between the air collection hood 3 and the arm body 21, and the arm body 21 located at the suction end is detachably connected to the connection part 31 by threads. The threaded connection method is simple and easy to operate, and the air collection hood 3 can be removed from the arm body 21 without special tools, which facilitates the cleaning or replacement of the air collection hood 3.

[0029] Please see Figure 1 In some embodiments, the housing 1 includes an outer shell 11 and a door 12 rotatably connected to one side of the outer shell 11. When it is necessary to inspect or replace the purification mechanism 5 inside the outer shell 11, the mechanism inside the outer shell 11 can be exposed by opening the door 12.

[0030] Please see Figure 1In some embodiments, the outer casing 11 is configured from top to bottom as a disinfection zone, a purification zone, and a fan zone; an ultraviolet lamp 41 is installed in the disinfection zone; the purification mechanism 5 is located in the purification zone; the suction fan 6 and the suction hood 7 are located in the fan zone; and the exhaust port 111 is located on the side wall of the fan zone. By defining multiple zones, the internal structure of the outer casing 11 is more rational, the zoning is more clear, and the direction of airflow is more defined. The ultraviolet lamp 41 emits ultraviolet light (usually in the UVC band), which can kill bacteria, viruses, and other microorganisms in the air, perform preliminary disinfection treatment on the intake air, reduce the contamination of subsequent filters by microorganisms, extend the service life of each filter, and improve the purification effect. The main function of the purification zone is to remove particulate matter and toxic gases. The main function of the fan zone is that the high-speed rotation of the impeller generates a pressure difference effect, creating a negative pressure environment inside the outer casing 11, providing a continuous power source for gas flow.

[0031] Please see Figure 1 In some embodiments, a lamp holder 42 is provided on the inner wall of the disinfection zone, and the ultraviolet lamp 41 is detachably mounted on the lamp holder 42. A detachable cover plate (not shown in the figure) is provided on the disinfection zone facing the door 12. The ultraviolet lamp 41 is an independent module, and different power or model lamp tubes can be replaced as needed to adapt to the disinfection requirements of different scenarios. As described above, the outer shell 11 has an open design, and the cover plate fits tightly with the inner wall of the disinfection zone, ensuring the airtightness of the disinfection zone, preventing untreated air leakage, improving purification efficiency, and preventing ultraviolet leakage, thus ensuring the safety of operators.

[0032] Please see Figure 1 In some embodiments, the purification mechanism 5 includes, from top to bottom, a pre-filter 51, a HEPA high-efficiency filter 52, a first nanofiber filter 53, and a second nanofiber filter 54. The main function of the pre-filter 51 is to intercept large particulate pollutants such as dust, hair, and debris, protecting subsequent filters. The HEPA high-efficiency filter 52 filters particles larger than 0.3 micrometers (such as pollen, bacteria, and viruses) to efficiently remove particulate matter and ensure air cleanliness. Compared to traditional activated carbon filters, nanofiber filters have advantages such as a higher specific surface area, better resistance to high humidity, and larger adsorption capacity, which can greatly improve air purification efficiency when applied to the air purification field. Simultaneously, the double-layer nanofiber filter ensures efficient removal of toxic gases, ensuring thorough purification.

[0033] Please see Figure 3In some embodiments, the two inner sidewalls of the purification zone are respectively provided with multiple vertically arranged slots 112. The two ends of the pre-filter 51, the HEPA high-efficiency filter 52, the first nanofiber filter 53, and the second nanofiber filter 54 are respectively engaged with the corresponding slots 112. Each filter is engaged through the slots 112, allowing for quick installation or replacement without complicated tools. In addition, the filters are arranged from top to bottom, and air passes through each level of filter sequentially, which helps reduce airflow resistance and makes full use of the purification zone space, resulting in a more compact structure.

[0034] Please see Figure 4 In some embodiments, both the first nanofiber filter 53 and the second nanofiber filter 54 include a carbon fiber layer 531 composed of multiple layers of stacked nanofibers, and non-woven fabric support layers 532 disposed on the upper and lower surfaces of the carbon fiber layer 531. Nanofibers are small in size and brittle; the upper and lower non-woven fabric support layers 532 are used to protect the multiple layers of carbon fibers between them, preventing damage to the carbon fiber structure due to external forces and thus affecting the purification performance of the nanofiber filter.

[0035] In some embodiments, the thickness of the carbon fiber layer 531 is greater than or equal to 15 mm. This configuration ensures that the air flowing through the carbon fiber layer 531 has a residence time of 0.5 s or more in the nanofiber filter, thereby ensuring the purification effect of the first nanofiber filter 53 and the second nanofiber filter 54 on toxic gases.

[0036] Please see Figure 1 In some embodiments, the bottom of the housing 1 is also provided with casters 8 equipped with brake pads. The casters 8 facilitate the quick movement of the purifier to the set position, improving ease of use.

[0037] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0038] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of this utility model.

Claims

1. A gas-collecting toxic gas purifier, characterized in that, The device includes a housing, a movable arm communicating with the inner cavity of the housing, a gas collection hood disposed at the free end of the movable arm and communicating with the movable arm, and a purification mechanism, a suction fan, and a suction hood disposed inside the housing. The side wall of the housing is provided with an exhaust port. The suction fan is used to draw outside air from the gas collection hood into the interior of the movable arm, and then into the interior of the housing. The air purified by the purification mechanism is drawn into the suction hood and then discharged from the exhaust port. The movable arm includes multiple arm sections, a cylindrical body disposed at the end of the arm section, and a rotating shaft for rotatably connecting adjacent cylindrical bodies. The inner cavities of the arm sections and the cylindrical bodies are interconnected.

2. The gas-collecting toxic gas purifier according to claim 1, characterized in that, The gas collection hood is provided with a threaded connection part at the connection position with the arm body, and the arm body located at the suction end is detachably connected to the connection part by the thread.

3. The gas-collecting toxic gas purifier according to claim 1, characterized in that, The housing includes an outer shell and a door rotatably connected to one side of the outer shell.

4. The gas-collecting toxic gas purifier according to claim 3, characterized in that, The outer casing is divided into a disinfection zone, a purification zone, and a fan zone from top to bottom; an ultraviolet lamp is installed in the disinfection zone, which emits UVC ultraviolet light; the purification mechanism is located in the purification zone; the suction fan and the suction hood are located in the fan zone; and the exhaust port is located on the side wall of the fan zone.

5. The gas-collecting toxic gas purifier according to claim 4, characterized in that, The inner wall of the disinfection area is provided with a lamp holder, the ultraviolet lamp is detachably installed on the lamp holder, and the disinfection area is provided with a cover plate facing the door.

6. The gas-collecting toxic gas purifier according to claim 4, characterized in that, The purification mechanism includes a pre-filter, a HEPA high-efficiency filter, a first nano-carbon fiber filter, and a second nano-carbon fiber filter arranged sequentially from top to bottom.

7. The gas-collecting toxic gas purifier according to claim 6, characterized in that, The two inner sidewalls of the purification zone are respectively provided with multiple slots arranged vertically. The two ends of the primary filter, the HEPA high-efficiency filter, the first nanofiber filter and the second nanofiber filter are respectively engaged with the corresponding slots.

8. The gas-collecting toxic gas purifier according to claim 6, characterized in that, Both the first and second nanofiber filter screens include a carbon fiber layer composed of multiple layers of stacked nanofibers, and a non-woven fabric support layer disposed on the upper and lower surfaces of the carbon fiber layer.

9. The gas-collecting toxic gas purifier according to claim 8, characterized in that, The thickness of the carbon fiber layer is 3 to 50 mm.

10. The gas-collecting toxic gas purifier according to claim 1, characterized in that, The bottom of the housing is also equipped with casters with brake pads.

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