Air supplement type ventilation cabinet capable of purifying organic waste gas

Abstract

The utility model discloses an air supplement type fume hood capable of purifying organic waste gas, which relates to the technical field of fume hoods and particularly comprises a workbench, a back plate is fixedly connected to the upper surface of the workbench, an exhaust box is fixedly connected to the top of the back plate, and a heating box is fixedly connected to the back of the exhaust box. The device comprises a heating box, the lower portion of the heating box is fixedly connected with a first pipeline, and the bottom end of the first pipeline is fixedly connected with a catalysis box. Organic waste gas generated by a test can enter the filter box through the exhaust box, the heating box, the catalysis box and other parts and is finally discharged by the wind chamber, so that the effect that the organic waste gas can be reacted and filtered by arranging the heating box and the filter box is achieved, and the problem that a purification mechanism is lacked nowadays is solved; the organic waste gas is inconvenient to purify and treat.

Description

Technical Field

[0001] The utility model relates to the technical field of fume hoods, in particular to a make-up air type fume hood capable of purifying organic waste gas. Background Technique

[0002] The cabinet-type exhaust hood is commonly known as a fume hood. Similar to the closed hood, the small part spray painting cabinet and the chemical laboratory fume hood are typical structures of the cabinet-type exhaust hood. For the large chamber fume hood, one side is completely open, and the operator works inside the cabinet, which is mainly used for large-piece spray painting, powder bagging, etc. The working opening of the fume hood has a great influence on the air flow distribution inside the cabinet, and the air flow distribution directly affects the working effect of the cabinet-type exhaust hood.

[0003] After retrieval, the Chinese patent with the publication number CN219253613U discloses that its technical key points are as follows: it includes a cabinet body, an operating table, an exhaust pipe, and a fan. The exhaust pipe is arranged at the top of the cabinet body; an operating table is arranged inside the cabinet body, and a fan is arranged inside the operating table. The fan is located on both sides of the operating table. The surface of the operating table is provided with air supply grilles, and the air supply grilles correspond to the fan. A plurality of fans are arranged on one side of the operating table and are arranged at intervals along the depth direction of the operating table; a retaining rib is arranged on the operating table, and the retaining rib protrudes from the surface of the operating table. The air supply grille is located on one side of the retaining rib close to the end of the operating table. The fan arranged inside the operating table provides a supply air flow to the inside of the cabinet body to push the waste gas generated above the operating table upward. The retaining rib arranged on the operating table can prevent the spilled liquid from flowing into the fan through the air supply grille, ensuring the working stability of the fan, thereby improving the air supply to the waste gas generated on the operating table and realizing multi-dimensional air supply inside the fume hood.

[0004] The above solution solves the deficiency that the existing fume hood has a single air supply and exhaust direction and cannot effectively realize multi-dimensional three-dimensional air supply on the operating table, which affects the exhaust efficiency. However, the above solution lacks a purification mechanism and is not convenient for purifying the organic waste gas generated by experiments.

[0005] Therefore, a new solution needs to be proposed to solve this problem. Content of the Utility Model

[0006] Aiming at the deficiencies and defects in the prior art in the above background technique that lack a purification mechanism.

[0007] A make-up air type fume hood capable of purifying organic waste gas disclosed by the utility model comprises a workbench, the upper surface of the workbench is fixedly connected with a backboard, the top of the backboard is fixedly connected with an exhaust box, the lower surface of the exhaust box is provided with an exhaust port, the back of the exhaust box is fixedly connected with a heating box, an electric heating net is fixedly installed inside the heating box, a first pipeline is fixedly connected below the heating box, the bottom end of the first pipeline is fixedly connected with a catalytic box, the lower surface of the catalytic box is fixedly connected with a second pipeline, the bottom end of the second pipeline is fixedly connected with a filtering box, and an air extraction box is fixedly installed on the lower surface of the filtering box.

[0008] Furthermore, a support cabinet is fixedly connected to each side of the workbench, and two side plates are fixedly connected to the upper surface of the workbench.

[0009] A wind guiding box is fixedly connected to the upper surface of each support cabinet, and an air inlet box is fixedly installed on the upper surface of each wind guiding box.

[0010] Furthermore, an upper protection plate is hinged to the front of the exhaust box, and a lower protection plate is slidably connected to the back of the upper protection plate.

[0011] Furthermore, through holes are formed in the outer surface of the upper protection plate, threaded holes are formed in the outer surface of the lower protection plate, and fixing rods are threadedly connected inside the threaded holes.

[0012] Furthermore, a protection box is fixedly connected inside the exhaust box, a blocking block is slidably connected inside the protection box, and a support rod is fixedly connected to the outer surface of the blocking block.

[0013] Furthermore, the other end of the support rod is fixedly connected with a blocking piece, and a spring is sleeved on the outer surface of the support rod.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. By arranging components such as a heating box and a catalytic box, and through the mutual cooperation relationship between the heating box and the catalytic box, the organic waste gas generated by the experiment can enter the filtering box through components such as the exhaust box, the heating box and the catalytic box, and finally be exhausted by the air extraction box, thereby achieving the effect that the device can react and filter the organic waste gas by arranging the heating box and the filtering box, and solving the problem that there is a lack of a purification mechanism and it is not convenient to purify the organic waste gas at present.

[0016] 2. By providing components such as an upper protection plate and a fixing rod, and through the mutual cooperation relationship between the upper protection plate and the fixing rod, the lower protection plate can slide to align the through hole with the threaded hole, enabling the fixing rod to rotate and insert one end into the interior driven by the through hole, thereby achieving the effect that the device can fix the lower protection plate by providing components such as the lower protection plate and the fixing rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are provided to further understand the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a schematic diagram of the heating box structure of the present utility model;

[0020] Figure 3 is a schematic diagram of the side plate structure of the present utility model;

[0021] Figure 4 is a schematic diagram of the internal structure of the heating box of the present utility model;

[0022] Figure 5 is a schematic diagram of the internal structure of the exhaust box of the present utility model

[0023] Figure 6 is a schematic diagram of the upper protection plate structure of the present utility model.

[0024] In the figure: 1, workbench; 2, back plate; 3, exhaust box; 4, exhaust port; 5, heating box; 6, electric heating grid; 7, first pipeline; 8, catalytic box; 9, second pipeline; 10, filter box; 11, air extraction box; 12, support cabinet; 13, side plate; 14, air induction box; 15, intake box; 16, upper protection plate; 17, lower protection plate; 18, through hole; 19, threaded hole; 20, fixing rod; 21, protection box; 22, stop block; 23, support rod; 24, stopper; 25, spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following will disclose multiple embodiments of the present utility model in the form of diagrams. For the sake of clarity, many physical details will be described together in the following narrative. However, it should be understood that these physical details are not used to limit the present utility model. That is to say, in some embodiments of the present utility model, these physical details are unnecessary. In addition, for the purpose of simplifying the diagrams, some conventional structures and components will be shown in a simple schematic manner in the diagrams.

[0026] Please refer toFigure 1 , 2 , 3, 4. A make-up air type fume hood capable of purifying organic waste gas of the present utility model includes a workbench 1. A backboard 2 is fixedly connected to the upper surface of the workbench 1. An exhaust box 3 is fixedly connected to the top of the backboard 2. An exhaust port 4 is opened on the lower surface of the exhaust box 3. A heating box 5 is fixedly connected to the back of the exhaust box 3. An electric heating grid 6 is fixedly installed inside the heating box 5. A first pipe 7 is fixedly connected to the lower part of the heating box 5. The bottom end of the first pipe 7 is fixedly connected to a catalytic box 8. The lower surface of the catalytic box 8 is fixedly connected to a second pipe 9. The bottom end of the second pipe 9 is fixedly connected to a filtration box 10. An air extraction box 11 is fixedly installed on the lower surface of the filtration box 10. The outer surfaces of the heating box 5 and the catalytic box 8 are fixedly connected to the back of the backboard 2. A catalytic agent is provided inside the catalytic box 8. Activated carbon blocks are filled inside the filtration box 10. The outer surfaces of the filtration box 10 and the air extraction box 11 are fixedly connected to the back of the workbench 1. The inside of the exhaust box 3 is in communication with the inside of the heating box 5. The heating box 5 is in communication with the catalytic box 8 through the first pipe 7. The catalytic box 8 is in communication with the inside of the filtration box 10 through the second pipe 9. The filtration box 10 is in communication with the air extraction box 11.

[0027] Please refer to Figure 1 , 2 , 3. A support cabinet 12 is fixedly connected to both sides of the workbench 1. Two side plates 13 are fixedly connected to the upper surface of the workbench 1. The bottom of each side plate 13 is fixedly connected to the lower surface of the exhaust box 3. Strip-shaped holes for make-up air are opened on the outer surface of each side plate 13.

[0028] Please refer to Figure 1 , 2 , An air induction box 14 is fixedly installed on the upper surface of each support cabinet 12. An air intake box 15 is fixedly connected to the upper surface of each air induction box 14. Each air intake box 15 is in communication with the inside of the corresponding air induction box 14. A filter screen is provided at the air intake port of each air intake box 15. Each air induction box 14 corresponds to a side plate 13.

[0029] Please refer to Figure 1 , 6 , An upper protection plate 16 is hinged to the front of the exhaust box 3. A lower protection plate 17 is slidably connected to the back of the upper protection plate 16. The upper protection plate 16 and the lower protection plate 17 are composed of a plastic frame and transparent glass. Two holes for opening are provided below the lower protection plate 17.

[0030] Please refer to Figure 1 , 6, through holes 18 are formed on the outer surface of the upper protection plate 16, threaded holes 19 are formed on the outer surface of the lower protection plate 17, a fixing rod 20 is threadedly connected inside the threaded hole 19, the through hole 18 and the fixing rod 20 are matched with each other, and the lower protection plate 17 can be slid to make the through hole 18 and the threaded hole 19 correspond to each other.

[0031] Please refer to Figure 1 , 3 , 5, a protection box 21 is fixedly connected inside the exhaust box 3, a stopper 22 is slidably connected inside the protection box 21, a support rod 23 is fixedly connected to the outer surface of the stopper 22, and the support rod 23 can drive the stopper 24 to move through the stopper 22, thereby fixing the lower protection plate 17 and the upper protection plate 16.

[0032] Please refer to Figure 5 , the other end of the support rod 23 is fixedly connected with a stopper 24, a spring 25 is sleeved on the outer surface of the support rod 23, one end of the spring 25 is in contact with the outer surface of the stopper 22, and the other end of the spring 25 is in contact with the inner wall of the exhaust box 3.

[0033] When using the present utility model: slide the lower protection plate 17 to make the threaded hole 19 and the through hole 18 correspond to each other, rotate the fixing rod 20 to make the fixing rod 20 enter the inside of the through hole 18, thereby completing the opening of the lower protection plate 17, move the stopper 24, the stopper 24 drives the support rod 23 to move, the support rod 23 drives the stopper 22 to slide inside the protection box 21, the spring 25 is compressed, rotate the upper protection plate 16, the upper protection plate 16 drives the lower protection plate 17 to rotate, so that the front surface of the upper protection plate 16 is attached to the front surface of the exhaust box 3, move the stopper 24 in the reverse direction, and the stopper 24 restricts the reverse rotation of the lower protection plate 17 and the upper protection plate 16, realizing the opening of the upper protection plate 16, start the air extraction box 11 and the air induction box 14, the waste gas above the workbench 1 enters the exhaust box 3 through the exhaust port 4 and enters the inside of the heating box 5 to be heated by the electric heating grid 6, then enters the inside of the catalytic box 8 through the first pipeline 7 for reaction, then enters the filtering box 10 through the second pipeline 9 and is adsorbed by the activated carbon, and finally is discharged by the air extraction box 11, and the air induction box 14 inhales external air through the air inlet box 15 and discharges it through the air supply holes on the side plate 13, thereby completing air supply and ventilation.

[0034] The above are only the embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the scope of the claims of the present utility model.

Claims

1. An air supply fume hood capable of purifying organic waste gas, comprising a workbench (1), characterized in that: The upper surface of the workbench (1) is fixedly connected to a back plate (2), the top of the back plate (2) is fixedly connected to an exhaust box (3), the lower surface of the exhaust box (3) is provided with an exhaust port (4), the back of the exhaust box (3) is fixedly connected to a heating box (5), the interior of the heating box (5) is fixedly installed with an electric heating network (6), the lower part of the heating box (5) is fixedly connected to a first pipe (7), the bottom end of the first pipe (7) is fixedly connected to a catalytic box (8), the lower surface of the catalytic box (8) is fixedly connected to a second pipe (9), the bottom end of the second pipe (9) is fixedly connected to a filter box (10), and the lower surface of the filter box (10) is fixedly installed with an exhaust box (11).

2. The air supply fume hood capable of purifying organic waste gas according to claim 1, characterized in that: A supporting cabinet (12) is fixedly connected to both sides of the workbench (1), and two side panels (13) are fixedly connected to the upper surface of the workbench (1).

3. The air supply fume hood capable of purifying organic waste gas according to claim 2 is characterized in that: An air induced draft box (14) is fixedly mounted on the upper surface of each of the support cabinets (12), and an air intake box (15) is fixedly connected to the upper surface of each of the air induced draft boxes (14).

4. The air supply fume hood capable of purifying organic waste gas according to claim 1, characterized in that: An upper protective plate (16) is hingedly connected to the front of the exhaust box (3), and a lower protective plate (17) is slidably connected to the back of the upper protective plate (16).

5. The air supply fume hood capable of purifying organic waste gas according to claim 4, characterized in that: The outer surface of the upper protective plate (16) is provided with a through hole (18), the outer surface of the lower protective plate (17) is provided with a threaded hole (19), and the inner thread of the threaded hole (19) is connected with a fixing rod (20).

6. The air supply fume hood capable of purifying organic waste gas according to claim 1, characterized in that: A protection box (21) is fixedly connected to the interior of the exhaust box (3), a stopper (22) is slidably connected to the interior of the protection box (21), and a support rod (23) is fixedly connected to the outer surface of the stopper (22).

7. The air supply fume hood capable of purifying organic waste gas according to claim 6, characterized in that: The other end of the support rod (23) is fixedly connected to a stopper (24), and the outer surface of the support rod (23) is sleeved with a spring (25).

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