Portable safety cabinet purification device

Abstract

The utility model relates to the technical field of safety cabinets, and discloses a portable safety cabinet purification device which comprises an air purification hood and a filter assembly, and the air purification hood comprises an air inlet hood, a filter hood and an air outlet cover plate; the filtering assembly comprises a high-efficiency particle filter, an activated carbon filter and a molecular filter; an efficient particle filter, an activated carbon filter and a molecule filter are correspondingly inserted into a first inserting groove, a second inserting groove and a third inserting groove respectively, then a frame protruding strip is inserted into a frame type inserting groove formed in the bottom of a filtering cover, and a frame type limiting plate abuts against the bottom of the filtering cover and abuts against the molecule filter. The filter assembly is simple in structure and convenient to install and position, the filters are installed in an inserted mode, the whole filter assembly is convenient to disassemble, modular design is adopted in the filter assembly, the filter assembly is divided into multiple filter types, and replacement and maintenance are more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of safety cabinets, and in particular relates to a portable safety cabinet purification device. Background Art

[0002] Safety cabinets are usually used to store hazardous substances that require strict environmental control, such as chemicals and biological agents. Safety cabinet monitoring and management can be achieved in a variety of ways, including real-time monitoring of harmful gas TVOC concentration, temperature, humidity, etc.

[0003] Currently, only activated carbon filters are installed on the purification devices used for safety cabinet purification to filter harmful gases and organic compounds. Activated carbon filters have a good filtering effect on harmful gases and organic compounds, but a poor filtering effect on particulate matter such as microorganisms. This means that in a biological safety cabinet, activated carbon filters cannot effectively block particulate matter. After the activated carbon filter adsorbs harmful gases and organic compounds to a certain extent, its adsorption capacity will gradually become saturated. At this point, the activated carbon filter can no longer adsorb harmful substances and may even release the adsorbed pollutants, affecting air quality;

[0004] The activated carbon filter is installed in the purification device by screws. When disassembling, it is necessary to disassemble the purification cover shell and then remove the screws that fix the activated carbon filter. This installation method makes the replacement of the filter cumbersome, not only time-consuming, but also increases the complexity of safety cabinet management. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art, the utility model provides a portable safety cabinet purification device.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions

[0007] A portable safety cabinet purification device, comprising a clean air head cover and a filter assembly, wherein the clean air head cover comprises an air inlet cover, a filter cover threadedly connected above the air inlet cover, and an air outlet cover plate threadedly connected above the filter cover; the filter assembly comprises a high-efficiency particle filter, an activated carbon filter and a molecular filter sequentially installed in the filter cover from top to bottom;

[0008] The filter cover is provided with a first plug-in slot, a second plug-in slot and a third plug-in slot, which increase in size from top to bottom and are respectively plugged in and positioned with a high-efficiency particle filter, an activated carbon filter and a molecular filter; the air intake cover is provided with a frame convex strip inserted into a frame slot provided at the bottom of the filter cover; a frame limiting plate is fixedly provided on the inner side of the air intake cover and cooperates with the molecular filter to abut against the top.

[0009] Insert the high-efficiency particle filter, activated carbon filter and molecular filter into the first plug-in slot, the second plug-in slot and the third plug-in slot respectively, and then insert the frame convex strip into the frame slot opened at the bottom of the filter cover, and the frame limit plate abuts against the bottom of the filter cover and the molecular filter setting. The first plug-in slot, the second plug-in slot and the third plug-in slot correspond to the high-efficiency particle filter, the activated carbon filter and the molecular filter. The design is convenient for the installation and positioning of each filter, and each filter is plug-in installed. After the air intake cover is removed, each filter can be removed, and the entire filter assembly is also easy to disassemble. The filter assembly adopts a modular design and is divided into a variety of filter types, which is more convenient for replacement and maintenance.

[0010] Preferably, a frame-type flange is fixedly provided on the outer side of the air inlet hood, and the frame-type flange is fixed to the bottom of the filter hood by bolts, so as to facilitate the combined assembly and fixation of the air inlet hood and the filter hood. An air inlet is provided on the air inlet hood, and the air inlet is connected to the air outlet of the safety cabinet through a threaded air duct and a clamp, so as to purify the gas in the safety cabinet.

[0011] Preferably, a fan located above the high-efficiency particulate filter is installed in the filter cover, an exhaust chamber is provided above the fan, the air outlet cover is fixed above the filter cover by bolts and is used to seal the exhaust chamber, and an exhaust port connected to the exhaust chamber is provided on the filter cover, and the exhaust port is used to discharge the purified gas.

[0012] Preferably, the high efficiency particle filter is a HEPA filter.

[0013] Preferably, a temperature sensor, a humidity sensor and a TVOC sensor are installed in the exhaust chamber. The TVOC sensor and the temperature and humidity sensor are placed on the upper part of the fan to monitor the VOC concentration and temperature and humidity after filtration and adsorption by the high-efficiency particulate filter, activated carbon filter and molecular filter.

[0014] Preferably, both sides of the filter cover are provided with carrying grooves respectively. The carrying groove design enables the user to operate more easily when carrying the air purification head cover, thereby improving the convenience of use. The carrying groove design makes the filter cover more compact in structure, saves space, and is easy to store and carry.

[0015] Preferably, a liquid crystal screen controller, a power switch and a buzzer are provided on the filter cover, and a power interface for supplying power to the liquid crystal screen controller, the power switch and the buzzer respectively is also embedded on the filter cover.

[0016] The LCD screen controller is used to display the gas concentration, temperature and humidity in real time, and sound an alarm through a buzzer when the preset threshold is exceeded. The LCD screen controller is electrically connected to the temperature sensor, humidity sensor, TVOC sensor, power switch and buzzer to read and analyze data in real time. In addition, the LCD screen controller is also connected to a remote server or cloud platform to realize remote real-time monitoring, so that data can be collected and analyzed in real time, and an alarm can be sounded when necessary.

[0017] Technical effects and advantages of the utility model:

[0018] In the portable safety cabinet purification device, the high-efficiency particle filter, the activated carbon filter and the molecular filter are respectively inserted into the first plug-in slot, the second plug-in slot and the third plug-in slot, and then the frame convex strip is inserted into the frame slot opened at the bottom of the filter cover, and the frame limit plate abuts against the bottom of the filter cover and the molecular filter setting, which is convenient for the installation and positioning of each filter, and each filter is plug-in installed, and the entire filter assembly is also convenient for disassembly;

[0019] High-efficiency particulate filters (HEPA filters) can effectively capture solid particles and larger molecular substances. Activated carbon filters can adsorb harmful gases and organic compounds, such as TVOC. Molecular filters can capture gases and molecular-sized substances, including harmful gases, to ensure the safety of the environment inside the safety cabinet. The filter components adopt a modular design and are divided into multiple filter types, making replacement and maintenance more convenient.

[0020] The temperature sensor, humidity sensor and TVOC sensor monitor the gas concentration, temperature and humidity in the safety cabinet in real time, and issue an alarm when the preset threshold is exceeded. The LCD screen controller connects to the remote server or cloud platform to achieve remote real-time monitoring, allowing users to understand the environmental conditions in the safety cabinet in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model from the first perspective;

[0022] Figure 2 It is a structural schematic diagram of the utility model from a second viewing angle;

[0023] Figure 3 It is an exploded view of the utility model;

[0024] Figure 4 This is a schematic structural diagram of the filter cover of the utility model from the first viewing angle;

[0025] Figure 5 This is a structural schematic diagram of the filter cover of the utility model from a second viewing angle;

[0026] Figure 6 It is a structural schematic diagram of the air intake hood of the utility model.

[0027] In the figure: 1. Air purification head cover; 11. Air inlet cover; 1101. Frame convex strip; 1102. Frame limit plate; 1103. Frame convex edge; 1104. Air inlet; 12. Filter cover; 1201. First plug-in slot; 1202. Second plug-in slot; 1203. Third plug-in slot; 1204. Exhaust chamber; 1205. Exhaust port; 1206. Hand-held groove; 13. Air outlet cover; 2. Filter assembly; 21. High-efficiency particle filter; 22. Activated carbon filter; 23. Molecular filter; 3. Fan; 4. Temperature sensor; 5. Humidity sensor; 6. TVOC sensor; 7. LCD screen controller; 8. Power switch; 9. Buzzer. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] The following is combined with Figure 1-6 To further explain this application in detail,

[0030] The embodiment of the present application discloses a portable safety cabinet purification device, including an air cleaning head cover 1 and a filter assembly 2, wherein the air cleaning head cover 1 includes an air intake cover 11, a filter cover 12 threadedly connected above the air intake cover 11, and an air outlet cover plate 13 threadedly connected above the filter cover 12; the air intake cover 11, the filter cover 12 and the air outlet cover plate 13 are all made of high-quality cold-rolled steel plates, and are subjected to acid phosphating, surface electrostatic spraying of epoxy resin powder, and high-temperature baking and melting to form a protective layer, which has the function of rust prevention and acid and alkali corrosion resistance, and the air intake cover 1104 is provided on the air intake cover 11, and the air intake port 1104 of the air cleaning head cover 1 is connected to the air outlet of the safety cabinet through a threaded air duct and a clamp, so as to ventilate and purify the safety cabinet.

[0031] The filter assembly 2 includes a high-efficiency particle filter 21, an activated carbon filter 22 and a molecular filter 23 which are sequentially installed in the filter cover 12 from top to bottom, wherein the high-efficiency particle filter 21 is a HEPA filter;

[0032] The high-efficiency particle filter 21 is used to capture most solid particles and substances larger than molecular size, the activated carbon filter 22 is used to adsorb harmful gases and organic compounds, such as TVOC, and the molecular filter 23 is used to capture gases and molecular-sized substances, including harmful gases. This filter component 2 is usually located at the outermost layer to prevent fine particles from entering the safety cabinet. The correct installation and operation of the filter component 2 is crucial to ensuring the environmental safety inside the safety cabinet.

[0033] The filter cover 12 is provided with a first plug-in groove 1201, a second plug-in groove 1202 and a third plug-in groove 1203, which increase in size from top to bottom and are respectively plugged and positioned with the high-efficiency particulate filter 21, the activated carbon filter 22 and the molecular filter 23; the air intake cover 11 is provided with a frame convex strip 1101 inserted into the frame slot provided at the bottom of the filter cover 12; the inner side of the air intake cover 11 is fixedly provided with a frame limiting plate 1102 which cooperates with the molecular filter 23 to resist the top.

[0034] Insert the high-efficiency particle filter 21, the activated carbon filter 22 and the molecular filter 23 into the first plug-in slot 1201, the second plug-in slot 1202 and the third plug-in slot 1203 respectively, and then insert the frame convex strip 1101 into the frame slot opened at the bottom of the filter cover 12, and the frame limit plate 1102 abuts against the bottom of the filter cover 12 and abuts against the molecular filter 23. The first plug-in slot 1201, the second plug-in slot 1202 and the third plug-in slot 1203 correspond to the high-efficiency particle filter 21, the activated carbon filter 22 and the molecular filter 23 in a contoured design, which is convenient for the installation and positioning of each filter, and each filter is plug-in installed. After the air intake cover 11 is disassembled, each filter can be disassembled, and the entire filter assembly 2 is also easy to disassemble. The filter assembly 2 adopts a modular design and is divided into a variety of filter types, which is more convenient for replacement and maintenance.

[0035] A frame-type flange 1103 is fixedly provided on the outer side of the air intake cover 11 , and the frame-type flange 1103 is fixed to the bottom of the filter cover 12 by bolts, so as to facilitate the combined assembly and fixation of the air intake cover 11 and the filter cover 12 .

[0036] A fan 3 located above the high-efficiency particulate filter 21 is installed in the filter cover 12, an exhaust chamber 1204 is provided above the fan 3, the air outlet cover 13 is fixed above the filter cover 12 by bolts and is used to seal the exhaust chamber 1204, and an exhaust port 1205 connected to the exhaust chamber 1204 is provided on the filter cover 12, and the exhaust port 1205 is used to discharge the purified gas.

[0037] The exhaust chamber 1204 is installed with a temperature sensor 4, a humidity sensor 5 and a TVOC sensor 6. The TVOC sensor 6 and the temperature and humidity sensor 5 are placed on the upper part of the fan 3 to monitor the VOC concentration and temperature and humidity after filtering and adsorption by the high-efficiency particulate filter 21, the activated carbon filter 22 and the molecular filter 23.

[0038] The filter cover 12 is provided with a carrying groove 1206 on both sides. The design of the carrying groove 1206 allows the user to operate more easily when carrying the air purification head cover 1, thereby improving the convenience of use. The design of the carrying groove 1206 makes the filter cover 12 more compact in structure, saves space, and is easy to store and carry.

[0039] The filter cover 12 is provided with a liquid crystal controller 7, a power switch 8 and a buzzer 9. The filter cover 12 is also embedded with a power interface for supplying power to the liquid crystal controller 7, the power switch 8 and the buzzer 9 respectively.

[0040] The LCD screen controller 7 is used to display the gas concentration, temperature and humidity in real time, and to sound an alarm through the buzzer 9 when the preset threshold is exceeded. The LCD screen controller 7 is electrically connected to the temperature sensor 4, the humidity sensor 5, the TVOC sensor 6, the power switch 8 and the buzzer 9 respectively to read and analyze the data in real time. In addition, the LCD screen controller 7 is also connected to a remote server or a cloud platform to realize remote real-time monitoring, so that data can be collected and analyzed in real time, and an alarm can be sounded when necessary.

[0041] The safety cabinet can remotely monitor the concentration, temperature and humidity of harmful gases TVOC in the safety cabinet in real time. An air purification hood 1 is installed on the safety cabinet to purify the air of the safety cabinet, and the gas is filtered and monitored through the air purification hood 1. The controller interface adds the display of the life of the activated carbon filter. The life of the activated carbon filter is obtained by combining the accumulated running time and the data monitored by the VOC sensor in the control program. The activated carbon filter counts down in percentage from 100% to 0%. If the life is less than 10%, an alarm will pop up on the controller screen to remind the user to replace it in time. When the filter life is 0, a continuous pop-up alarm will be sounded, and the buzzer 9 will not be released until the customer replaces the filter and resets the filter life value.

[0042] The air purification process of the portable safety cabinet purification device mainly includes the following steps:

[0043] 1. Ventilation: The air purifier hood 1 is placed above the safety cabinet, and the power is connected through the power interface (not shown in the drawings) and the power cord. The air outlet of the safety cabinet is connected to the air inlet 1104 of the air purifier hood 1 through a threaded air duct to achieve ventilation inside the safety cabinet.

[0044] 2. Filtration: Harmful gases and pollutants are filtered through a high-efficiency particle filter 21, an activated carbon filter 22 and a molecular filter 23.

[0045] 3. Monitoring: The filtered gas enters the exhaust chamber 1204 through the fan 3, where the temperature sensor 4, humidity sensor 5 and TVOC sensor 6 monitor the gas concentration, temperature and humidity in real time.

[0046] 4. Display and alarm: The LCD controller 7 displays the gas concentration, temperature and humidity in real time, and sounds an alarm through the buzzer 9 when it exceeds the preset threshold. At the same time, the LCD controller 7 is also connected to a remote server or cloud platform to achieve remote real-time monitoring.

[0047] 5. Clean air head cover 1 removal and filter replacement: When the filter needs to be replaced, the user can easily remove the clean air head cover 1 and then replace it according to the filter life percentage. After replacing the filter, reset the filter life value and remove the alarm.

[0048] Through the above air purification process, the safety cabinet can effectively control and monitor harmful gases, temperature and humidity to ensure the cleanliness and safety of the environment inside the safety cabinet.

[0049] 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, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or 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 portable safety cabinet purification device, characterized in that: include: A clean air head cover (1), the clean air head cover (1) comprising an air inlet cover (11), a filter cover (12) threadedly connected above the air inlet cover (11), and an air outlet cover plate (13) threadedly connected above the filter cover (12); A filter assembly (2), the filter assembly (2) comprising a high-efficiency particle filter (21), an activated carbon filter (22) and a molecular filter (23) which are sequentially installed in the filter cover (12) from top to bottom; The filter cover (12) is provided with a first insertion groove (1201), a second insertion groove (1202) and a third insertion groove (1203) which are increased in size from top to bottom and are respectively inserted and positioned with the high-efficiency particle filter (21), the activated carbon filter (22) and the molecular filter (23); the air intake cover (11) is provided with a frame convex strip (1101) which is inserted into a frame-type slot provided at the bottom of the filter cover (12); and a frame-type limiting plate (1102) which cooperates with the molecular filter (23) to abut against the inner side of the air intake cover (11) is fixedly provided.

2. A portable safety cabinet purification device according to claim 1, characterized in that: A frame-type flange (1103) is fixedly provided on the outer side of the air intake cover (11), and the frame-type flange (1103) is fixed to the bottom of the filter cover (12) by means of bolts. An air inlet (1104) is provided on the air intake cover (11).

3. A portable safety cabinet purification device according to claim 1, characterized in that: The filter cover (12) is provided with a fan (3) located above the high-efficiency particle filter (21); an exhaust chamber (1204) is provided above the fan (3); the air outlet cover (13) is fixed above the filter cover (12) by bolts and is used to seal the exhaust chamber (1204); and the filter cover (12) is provided with an exhaust port (1205) connected to the exhaust chamber (1204).

4. A portable safety cabinet purification device according to claim 1, characterized in that: The high efficiency particle filter (21) is a HEPA filter.

5. A portable safety cabinet purification device according to claim 3, characterized in that: A temperature sensor (4), a humidity sensor (5) and a TVOC sensor (6) are installed in the exhaust chamber (1204).

6. A portable safety cabinet purification device according to claim 1, characterized in that: Hand-carrying grooves (1206) are respectively provided on both sides of the filter cover (12).

7. A portable safety cabinet purification device according to claim 1, characterized in that: The filter cover (12) is provided with a liquid crystal screen controller (7), a power switch (8) and a buzzer (9), and the filter cover (12) is also embedded with a power interface for supplying power to the liquid crystal screen controller (7), the power switch (8) and the buzzer (9) respectively.

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