Hazardous chemical substance storage cabinet based on layered independent filtering

Abstract

The utility model discloses a hazardous chemical substance storage cabinet based on layered independent filtering, the hazardous chemical substance storage cabinet comprises a cabinet body, a plurality of air inlet filtering structures and a plurality of exhaust filtering structures, the cabinet body is internally provided with a ventilation and electrical control integrated cabin and a medicine storage cabinet, and the medicine storage cabinet is internally provided with three layers of medicine chambers. An air inlet and an air outlet are formed in the two sides of each layer of medicine chamber respectively, the exhaust filtering structure comprises an air collecting pipeline, a plurality of exhaust filtering modules and a suction fan, the air collecting pipeline is vertically installed in the ventilation and electrical control integrated cabin, and the air collecting pipeline communicates with the air outlet of each layer of medicine chamber in the medicine storage cabinet; the exhaust filtering modules are installed at the communicating positions of the gas collecting pipeline and the exhaust ports of the multiple layers of medicine chambers, and the suction fan is installed in the ventilation and electrical control integrated cabin and connected with the bottom end of the gas collecting pipeline. According to the utility model, one exhaust filter module is arranged on each layer of medicine chamber, so that the filtering quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of hazardous chemical storage cabinet technology, specifically to a hazardous chemical storage cabinet based on layered independent filtration. Background Technology

[0002] Hazardous chemical storage cabinets or hazardous chemical management cabinets are used in laboratories to store hazardous chemicals. These hazardous chemicals are toxic and harmful chemicals that produce large amounts of toxic, harmful, and corrosive gases. If toxic and harmful chemicals are stored in storage cabinets or management cabinets, toxic and harmful gases will be generated or volatilized inside the cabinets. If these toxic and harmful gases leak into the laboratory through the gaps in the cabinets, they will not only damage the experimental equipment but also endanger the health of the laboratory personnel and staff, and pollute the surrounding environment.

[0003] To prevent the toxic and harmful gases emitted by these hazardous chemicals from posing a hazard to the laboratory, existing manufacturers install a filtration system on the hazardous chemical storage cabinets or hazardous chemical management cabinets. This existing filtration system mainly consists of an exhaust duct, a filter box, and a fan. An opening is pre-drilled in the top of the hazardous chemical storage cabinet, and the exhaust duct is connected to the cabinet. The outer end of the exhaust duct is connected to...

[0004] The harmful and toxic gases inside the hazardous chemical storage cabinet are discharged from the cabinet through the filter box under the negative pressure of the exhaust duct. The gases are then filtered before being discharged.

[0005] The existing filtration structures of hazardous chemical storage cabinets have the following shortcomings:

[0006] 1) An external filter box is required. Since the exhaust duct needs to be connected to the external filter box, the required exhaust duct length is relatively long, which greatly increases the gas travel and increases the cost of the exhaust duct length.

[0007] 2) Because the internal partitions of the hazardous chemical storage cabinet divide it into several storage spaces, when the top is ventilated, the ventilation effect is worse the closer the hazardous chemical storage cabinet is to the lower space.

[0008] 3) Inside the hazardous chemical storage cabinet, the types of hazardous chemicals stored in different storage spaces may be different. Different types of hazardous chemicals in the entire hazardous chemical storage cabinet are directly collected through a single exhaust duct. This can easily lead to the mixing of harmful and toxic gases volatilized from different types of hazardous chemicals in the exhaust duct, which may cause chemical reactions, produce new harmful gases, corrode the exhaust duct, and thus create a dangerous point for the leakage of harmful gases.

[0009] 4) Traditional hazardous chemical storage cabinets cannot achieve layered filtration, resulting in low filtration efficiency. Utility Model Content

[0010] The technical problem this utility model aims to solve is to address the shortcomings of existing technologies by providing a hazardous chemical storage cabinet that features an exhaust filter module installed on each layer of the medicine room. This module filters out toxic and harmful gases emitted by hazardous chemicals in each layer of the medicine room, preventing the mixing of toxic and harmful gases emitted by different types of hazardous chemicals in different layers of the medicine room from forming new harmful gases in the gas collection pipe. Furthermore, the exhaust filter structure's gas collection pipe and suction fan are integrated into the ventilation and electrical control compartment inside the cabinet, reducing the length of the gas collection pipe, significantly reducing gas travel, and accelerating exhaust efficiency.

[0011] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0012] A hazardous chemical storage cabinet based on layered independent filtration, the hazardous chemical storage cabinet includes a cabinet body, several air intake filtration structures, and an exhaust filtration structure. The internal space of the cabinet body is provided with a ventilation and electrical control integrated compartment and a medicine storage cabinet from left to right. The ventilation and electrical control integrated compartment and the medicine storage cabinet are arranged side by side in the cabinet body. Several air intake filtration structures are installed on one side of the medicine storage cabinet, and the exhaust filtration structure is installed in the ventilation and electrical control integrated compartment and located on the other side of the medicine storage cabinet.

[0013] The medicine storage cabinet has at least three medicine compartments inside, which are arranged from top to bottom along the inside of the medicine storage cabinet. Each medicine compartment has an air inlet on one side, and each air inlet filter structure is fixed to the outside of the air inlet of each medicine compartment. Each medicine compartment has an exhaust port on the other side.

[0014] The exhaust filtration structure includes an air collection duct, a number of exhaust filtration modules equal to the number of medicine compartments, and a suction fan. The air collection duct is vertically installed inside the ventilation and electrical control integrated compartment and located on the other side of the medicine storage cabinet. The air collection duct is connected to the exhaust port of each medicine compartment in the medicine storage cabinet from top to bottom. The exhaust filtration modules are installed at the connection between the air collection duct and the exhaust ports of the medicine compartments. Each exhaust filtration module corresponds to the exhaust port of one medicine compartment. The suction fan is installed inside the ventilation and electrical control integrated compartment and connected to the bottom end of the air collection duct.

[0015] Furthermore, the exhaust filtration modules include a first exhaust filtration module, a second exhaust filtration module, and a third exhaust filtration module. The first exhaust filtration module, the second exhaust filtration module, and the third exhaust filtration module are arranged sequentially from top to bottom along the three-layer medicine chamber. The first exhaust filtration module, the second exhaust filtration module, and the third exhaust filtration module are connected to the exhaust vents of the three-layer medicine chamber in sequence.

[0016] Furthermore, the first exhaust filter module is equipped with coarse filter cotton, the second exhaust filter module is equipped with medium-efficiency glass fiber cotton, the surface of the medium-efficiency glass fiber cotton is coated with an anti-corrosion coating, and the third exhaust filter module is equipped with HEPA high-efficiency filter cotton.

[0017] Furthermore, the side wall of the cabinet is provided with an air outlet, which is aligned with the exhaust fan inside the ventilation and electrical control integrated compartment.

[0018] Furthermore, each air intake filter structure includes an air intake pipe, a filter fixing plate, and activated carbon filter cotton. One end of the air intake pipe is connected to the air intake hole on the side wall of each medicine chamber, and the other end of the air intake pipe is connected to the filter fixing plate. The activated carbon filter cotton is built into the air intake pipe. The filter fixing plate is provided with a number of filter holes, which are evenly distributed on the filter fixing plate.

[0019] Furthermore, the hazardous chemical storage cabinet includes a circuit control board, which is fixed to the outside of the medicine storage cabinet and located inside the ventilation and electrical control integrated compartment.

[0020] Furthermore, an electrical cabinet door is installed on the side of the cabinet, and the electrical cabinet door is located outside the ventilation and electrical control integrated compartment.

[0021] Furthermore, the medicine storage cabinet includes at least three partitions, which are installed at intervals from top to bottom inside the medicine storage cabinet to form three medicine compartments.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1) The hazardous chemical storage cabinet of this utility model includes a cabinet body, several air intake filtration structures, and an exhaust filtration structure. The internal space of the cabinet body is provided with a ventilation and electrical control integrated compartment and a medicine storage cabinet from left to right. Several air intake filtration structures are installed on one side of the medicine storage cabinet. The medicine storage cabinet has at least three layers of medicine compartments. Each layer of medicine compartment has an air inlet on one side. Each air intake filtration structure is fixed to the outside of the air inlet of each layer of medicine compartment. Each layer of medicine compartment has an exhaust outlet on the other side. The exhaust filtration structure includes an air collection pipe, several exhaust filtration modules equal in number to the number of medicine compartments, and a suction fan. The air collection pipe is vertically installed inside the ventilation and electrical control integrated compartment and located on the other side of the medicine storage cabinet. The air collection pipe is connected to the exhaust outlet of each layer of medicine compartment in the medicine storage cabinet from top to bottom. Several exhaust filtration modules are installed at the connection between the air collection pipe and the exhaust outlet of the several layers of medicine compartments. Each exhaust filtration module corresponds to the exhaust outlet of one layer of medicine compartment. The suction fan is installed inside the ventilation and electrical control integrated compartment and connected to the bottom end of the air collection pipe. This invention, by installing an exhaust filter module on each floor of the medicine room, can filter out toxic and harmful gases emitted by hazardous chemicals in each floor of the medicine room. This avoids the situation where toxic and harmful gases emitted by different types of hazardous chemicals in different floors of the medicine room directly mix in the gas collection pipe to form new harmful gases. The gas collection pipe of the exhaust filter structure and the exhaust fan are set in the ventilation and electrical control integrated compartment inside the cabinet, which reduces the length of the gas collection pipe, greatly reduces the gas travel, and speeds up the exhaust efficiency.

[0024] 2) This utility model has an electrical cabinet door installed on the side of the cabinet, located outside the ventilation and electrical control integrated compartment. The electrical cabinet door facilitates the inspection and maintenance of circuits such as the circuit control boards within the ventilation and electrical control integrated compartment, and also facilitates the disassembly and maintenance of the exhaust filter structure within the compartment. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the hazardous chemical storage cabinet according to Embodiment 1 of this utility model;

[0026] Figure 2 This is a structural schematic diagram of a hazardous chemical storage cabinet from one angle according to Embodiment 1 of this utility model;

[0027] Figure 3 This is an exploded view of the structure of the hazardous chemical storage cabinet according to Embodiment 1 of this utility model. Figure 1 ;

[0028] Figure 4 This is an exploded view of the structure of the hazardous chemical storage cabinet according to Embodiment 1 of this utility model. Figure 2 ;

[0029] Figure 5 This is a schematic diagram of the structure of the medicine storage cabinet of this utility model. Figure 1;

[0030] Figure 6 This is a schematic diagram of the structure of the medicine storage cabinet of this utility model. Figure 2 ;

[0031] Figure 7 This is a schematic diagram of the exhaust filter structure of this utility model. Figure 1 ;

[0032] Figure 8 This is a schematic diagram of the exhaust filter structure of this utility model. Figure 2 ;

[0033] Figure 9 This is an internal structural diagram of the exhaust filter structure of this utility model;

[0034] Figure 10 This is a schematic diagram of the air intake filter structure of this utility model. Figure 1 ;

[0035] Figure 11 This is an internal structural diagram of the air intake filter structure of this utility model;

[0036] Figure 12 This is an exploded view of the structure of the hazardous chemical storage cabinet according to Embodiment 2 of this utility model;

[0037] Figure 13 This is a schematic diagram showing the relationship between the exhaust filter structure and the medicine storage cabinet in Embodiment 2 of this utility model.

[0038] In the diagram, the components are: cabinet 1, ventilation and electrical control integrated compartment 11, medicine storage cabinet 12, medicine room 121, air inlet 1211, exhaust outlet 1212, left side panel 122, right side panel 123, rear side panel 124, top panel 125, bottom panel 126, support legs 127, partition 128, load-bearing frame 129, air outlet 13, cabinet door 14, protective enclosure 15, air intake filter structure 2, air intake pipe 21, filter fixing plate 22, activated carbon filter cotton 23, and filter holes 2. 4. Exhaust filtration structure; 3. Air collection pipe; 31. Exhaust filtration module; 32. First exhaust filtration module; 321. Coarse filter cotton; 3211. Second exhaust filtration module; 322. Medium-efficiency glass fiber cotton; 3221. Anti-corrosion coating; 3222. Third exhaust filtration module; 323. HEPA high-efficiency filter cotton; 3231. Exhaust fan; 33. ABS flange; 34. Flexible air duct; 35. Circuit control board; 4. Casters; 5. Touch screen; 6. RFID reader; 7. Electrical cabinet door; 8. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] Example 1

[0041] like Figures 1-7 As shown, this utility model provides a hazardous chemical storage cabinet based on layered independent filtration. The cabinet includes a cabinet body 1, several air intake filtration structures 2, and an exhaust filtration structure 3. The internal space of the cabinet body 1, from left to right, comprises a ventilation and electrical control integrated compartment 11 and a medicine storage cabinet 12. The ventilation and electrical control integrated compartment 11 and the medicine storage cabinet 12 are arranged side-by-side within the cabinet body 1. Several air intake filtration structures 2 are installed on one side of the medicine storage cabinet 12, and the exhaust filtration structure 3 is installed within the ventilation and electrical control integrated compartment 11 and located on the other side of the medicine storage cabinet 12. The medicine storage cabinet 12 has at least three layers of medicine compartments 121, which are distributed sequentially from top to bottom along the interior of the medicine storage cabinet 12. Each layer of medicine compartment 121 has an air inlet 1211 on one side, and each air intake filtration structure 2 is fixed to each layer of medicine compartment. Outside the air inlet 1211 of the medicine room 121, an exhaust outlet 1212 is provided on the other side of each medicine room 121. The exhaust filtration structure 3 includes an air collection pipe 31, a number of exhaust filtration modules 32 equal to the number of medicine rooms 121, and a suction fan 33. The air collection pipe 31 is vertically installed inside the ventilation and electrical control integrated compartment 11 and located on the other side of the medicine storage cabinet 12. The air collection pipe 31 is connected from top to bottom to the exhaust outlet 1212 of each medicine room 121 in the medicine storage cabinet 12. A number of exhaust filtration modules 32 are installed at the connection between the air collection pipe 31 and the exhaust outlet 1212 of the medicine rooms 121. Each exhaust filtration module 32 corresponds to the exhaust outlet 1212 of one medicine room 121. The suction fan 33 is installed inside the ventilation and electrical control integrated compartment 11 and connected to the bottom end of the air collection pipe 31. This utility model discloses a hazardous chemical storage cabinet, comprising a cabinet door 14, a touch screen 6, and an RFID reader 7. The cabinet door 14 is located at the front of the cabinet body 1 and hinged to a medicine storage cabinet 12. The RFID reader 7 is fixed to one side of the front of the cabinet body 1 and located on one side of the cabinet door 14. The touch screen 6 is installed on one side of the front of the cabinet body 1 and located above the RFID reader 7. The RFID reader 7 facilitates the reading of information about hazardous chemicals stored in the medicine storage cabinet 12.

[0042] In the first embodiment of this utility model, the medicine storage cabinet 12 includes a left side panel 122, a right side panel 123, a rear side panel 124, a top panel 125, and a bottom panel 126. The top panel 125 and the bottom panel 126 are arranged opposite to each other. The left side panel 122 and the right side panel 123 are respectively fixed to the left and right sides of the top panel 125 and the bottom panel 126. The rear side panel 124 is fixed to the rear side of the top panel 125 and the bottom panel 126. Support feet 127 are fixed at the four corners of the bottom of the bottom panel 126. The medicine storage cabinet 12 is stably placed inside the cabinet body 1 by the support feet 127 at the four corners of the bottom panel 126.

[0043] In its specific implementation, the medicine storage cabinet 12 includes at least three partitions 128, which are installed alternately from top to bottom inside the medicine storage cabinet 12 to form three-layer medicine compartments 121. The medicine storage cabinet 12 also includes a number of load-bearing frames 129 equal to the number of partitions 128. The load-bearing frames 129 are arranged alternately from top to bottom along the cabinet body 1 inside the medicine storage cabinet 12, and each partition 128 is fixed to the load-bearing frame 129 to achieve the installation and fixation of several partitions 128 to the medicine storage cabinet 12.

[0044] The hazardous chemical storage cabinet of this utility model includes several casters 5, which are respectively installed at the four corners below the cabinet body 1. In specific implementation, the casters 5 can be made of casters, which can facilitate short-distance transfer and fixation of the hazardous chemical storage cabinet, thereby improving the practicality of the hazardous chemical storage cabinet.

[0045] like Figures 8-9As shown in the embodiment of this utility model, a plurality of exhaust filtration modules 32 include a first exhaust filtration module 321, a second exhaust filtration module 322, and a third exhaust filtration module 323. The first exhaust filtration module 321, the second exhaust filtration module 322, and the third exhaust filtration module 323 are arranged sequentially from top to bottom along the three-layer medicine chamber 121. The first exhaust filtration module 321, the second exhaust filtration module 322, and the third exhaust filtration module 323 are sequentially connected to the exhaust holes of the three-layer medicine chamber 121. A coarse filter cotton is provided inside the first exhaust filtration module 321. A medium-efficiency glass fiber cotton 3221 is fixed inside the second exhaust filtration module 322. The surface of the medium-efficiency glass fiber cotton 3221 is coated with an anti-corrosion coating 3222. A HEPA high-efficiency filter cotton 3231 is provided inside the third exhaust filtration module 323. The first exhaust filter module 321 is equipped with coarse filter cotton, which is suitable for adsorbing particulate matter, such as some flammable particles. The second exhaust filter module 322 is equipped with medium-efficiency glass fiber cotton 3221, and the surface of the medium-efficiency glass fiber cotton 3221 is coated with an anti-corrosion coating 3222, which can filter acid and alkali hazardous chemicals. The second exhaust filter module 322 is equipped with HEPA high-efficiency filter cotton 3231, which can filter hazardous chemicals such as organic solvents. By setting different exhaust filter modules 32 to filter hazardous chemicals in different medicine chambers 121, the gases volatilized from hazardous chemicals in different medicine chambers 121 will not cause cross-contamination and chemical reactions at the gas collection pipe 31.

[0046] This invention features an air outlet 13 on the side wall of the cabinet 1, aligned with the suction fan 33 inside the ventilation and electrical control integrated compartment 11. Air is filtered through the air intake filter structure 2 at the air inlet 1211 before entering the medicine storage cabinet 12. After passing through the exhaust outlet 1212 and the exhaust filter module 32 at the exhaust outlet 1212, the air is collected inside the air collection pipe 31. Under the suction of the suction fan 33, the filtered air is discharged from the air outlet 13 into the air outside the cabinet 1, ensuring the air quality inside the medicine storage cabinet 12 and effectively guaranteeing that the cleanliness standards within the medicine storage cabinet 12 are met. Specifically, the suction fan 33 of this invention is preferably an adjustable speed fan or an explosion-proof DC fan.

[0047] like Figure 10 Figure 11As shown, in specific implementation, each air intake filter structure 2 of this utility model includes an air intake pipe 21, a filter fixing plate 22, and activated carbon filter cotton 23. One end of the air intake pipe 21 is connected to the air intake hole on the side wall of each medicine chamber 121, and the other end of the air intake pipe 21 is connected to the filter fixing plate 22. The activated carbon filter cotton 23 is built into the air intake pipe 21. The filter fixing plate 22 is provided with a plurality of filter holes 24, which are evenly distributed on the filter fixing plate 22. Through the cooperation of the activated carbon filter cotton 23 and the plurality of filter holes 24 on the filter fixing plate 22, the air entering each medicine chamber 121 can be filtered, thereby improving the air quality entering the medicine storage cabinet 12.

[0048] The hazardous chemical storage cabinet of this utility model includes a circuit control board 4, which is fixed to the outside of the medicine storage cabinet 12 and located inside the ventilation and electrical control integrated compartment 11. The circuit control board 4 is also located on one side of the gas collection pipe 31, and the touch screen 6 and IC card reader are electrically connected to the circuit control board 4.

[0049] This utility model features an electrical cabinet door 8 installed on the side of the cabinet 1, located outside the ventilation and electrical control integrated compartment 11. The electrical cabinet door 8 facilitates the inspection and maintenance of circuits such as the circuit control board 4 within the ventilation and electrical control integrated compartment 11, and also facilitates the disassembly and maintenance of the exhaust filter structure 3 within the ventilation and electrical control integrated compartment 11.

[0050] Example 2

[0051] like Figures 12-13 As shown, this utility model provides a hazardous chemical storage cabinet based on layered independent filtration. The hazardous chemical storage cabinet includes a cabinet body 1, several air intake filter structures 2, and an exhaust filter structure 3. The structure of the several air intake filter structures 2 is basically the same as that in Embodiment 1. For ease of description and to save space, only the cabinet body 1 and the exhaust filter structure 3, which are different from those in Embodiment 1, will be described below.

[0052] In this embodiment of the utility model, a protective enclosure 15 is fixed to the outer periphery of the top of the cabinet 1. The exhaust filtration structure 3 includes an air collection pipe 31, a number of exhaust filtration modules 32 equal to the number of medicine compartments 121, an ABS flange 34, a flexible air duct 35, and a suction fan 33. The air collection pipe 31 is vertically installed inside the ventilation and electrical control integrated compartment 11 and located on the other side of the medicine storage cabinet 12. The air collection pipe 31 is connected from top to bottom to the exhaust port 1212 of each medicine compartment 121 of the medicine storage cabinet 12. Several exhaust filter modules 32 are installed at the connection points between the gas collection pipe 31 and the exhaust ports 1212 of several layers of medicine chambers 121. Each exhaust filter module 32 corresponds to the exhaust port 1212 of one layer of medicine chamber 121. One end of the flexible air duct 35 is connected to the gas collection pipe 31, and the other end of the flexible air duct 35 is connected to the suction fan 33. The suction fan 33 is installed on the top of the cabinet 1 and connected to the top of the gas collection pipe 31 through the flexible air duct 35. An ABS flange 34 is installed at the connection point between the flexible air duct 35 and the gas collection pipe 31. By setting the ABS flange 34, a reliable connection between the gas collection pipe 31 and the flexible air duct 35 can be ensured, preventing loosening or disconnection at the interface of the gas collection pipe 31. When the fan starts and generates airflow, it will exert a certain impact force on the gas collection pipe 31. The ABS flange 34 can firmly connect the gas collection pipe 31 and the flexible air duct 35 together, ensuring the stability of the system and greatly improving the safety of the hazardous gas treatment process.

[0053] Compared with the prior art, the technical solution disclosed in the above embodiments has the following beneficial effects:

[0054] In the above embodiments, the hazardous chemical storage cabinet of this utility model has three layers of medicine compartments 121 inside the medicine storage cabinet 12, which facilitates the placement of different types of hazardous chemicals in different medicine compartments 121, and can better manage the storage of hazardous chemicals. An air intake filter structure 2 is installed at the air inlet 1211 on one side wall of each medicine compartment 121, and an exhaust filter module 32 is installed at the exhaust outlet 1212 on the other side wall of each medicine compartment 121, so that each medicine compartment 121's exhaust outlet 1212 is equipped with an exhaust filter module 32, which can filter the type of hazardous chemicals placed in each medicine compartment 121 individually, making the filtration effect better. When the suction fan 33 is turned on, the toxic and harmful gases emitted by the hazardous chemicals stored in each medicine compartment 121 are discharged from the exhaust outlet 1212. The gas flows from 12 to the gas collection pipe 31, and then from the gas collection pipe 31 to the suction fan 33 for filtration. An exhaust filter module is installed on each layer of the medicine room 121 to filter out the toxic and harmful gases emitted by the hazardous chemicals in each layer of the medicine room 121. This prevents the toxic and harmful gases emitted by different types of hazardous chemicals in different layers of the medicine room 121 from mixing directly in the gas collection pipe 31 and forming new harmful gases through chemical reactions. In addition, the exhaust filter structure 3's gas collection pipe 31 and suction fan 33 are installed in the ventilation and electrical control integrated compartment 11 inside the cabinet 1, which reduces the length of the gas collection pipe 31, reduces the cost of the gas collection pipe 31, greatly reduces the gas travel, and can also speed up the exhaust efficiency. This utility model greatly improves the filtration effect inside the medicine room 121 by setting several exhaust filtration modules 32 and air intake filtration structures 2 in each medicine room 121, ensuring the air quality inside the cabinet 1 and effectively guaranteeing that the cleanliness and other indicators inside the cabinet 1 meet the standards. Compared with traditional storage cabinets, the hazardous chemical storage cabinet of this utility model has a better filtration effect and is more conducive to the storage of hazardous chemicals.

[0055] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of this application should still fall within the scope of the present invention.

Claims

1. A layered independent filtration based hazardous chemical storage cabinet characterized in that: The dangerous chemical storage cabinet comprises a cabinet body, a plurality of air inlet filtering structures and an air outlet filtering structure, and an internal space of the cabinet body is provided with a ventilation and electrical control integrated cabin and a medicine storage cabinet from left to right. The medicine storage cabinet is internally provided with at least three layers of medicine rooms, and the three layers of medicine rooms are sequentially distributed from top to bottom inside the medicine storage cabinet. The air outlet filtering structure comprises a gas collecting pipeline, a plurality of air outlet filtering modules corresponding to the medicine rooms and an air suction fan.

2. The layered independent filtration based hazardous chemical storage cabinet as claimed in claim 1, wherein: The plurality of air outlet filtering modules comprise a first air outlet filtering module, a second air outlet filtering module and a third air outlet filtering module.

3. The layered independent filtration based hazardous chemical storage cabinet as claimed in claim 2, wherein: The first air outlet filtering module is internally provided with coarse filter cotton, the second air outlet filtering module is internally fixed with medium-efficiency glass fiber cotton, the surface of the medium-efficiency glass fiber cotton is coated with an anti-corrosion coating, and the third air outlet filtering module is internally provided with HEPA high-efficiency filter cotton.

4. The layered independent filtration based hazardous chemical storage cabinet as claimed in claim 1, wherein: The side wall of the cabinet body is provided with an air outlet, and the air outlet is aligned with the air suction fan inside the ventilation and electrical control integrated cabin.

5. The layered independent filtration based hazardous chemical storage cabinet as claimed in claim 1, wherein: Each air inlet filtering structure comprises an air inlet pipeline, a filtering fixed plate and activated carbon filter cotton.

6. The layered independent filtration based hazardous chemical storage cabinet as claimed in claim 1, wherein: The dangerous chemical storage cabinet comprises a circuit control board, which is fixed to the outside of the medicine storage cabinet and located inside the ventilation and electrical control integrated cabin.

7. The layered independent filtration based hazardous chemical storage cabinet as claimed in claim 1, wherein: The side edge of the cabinet body is provided with an electrical cabinet door, and the electrical cabinet door is located outside the ventilation and electrical control integrated cabin.

8. The layered independent filtration based hazardous chemical storage cabinet as claimed in claim 7, wherein: The medicine storage cabinet comprises at least three partitions, which are sequentially and spaced apart from top to bottom inside the medicine storage cabinet to form three layers of medicine rooms.

Images