Acid mist discharging device for fuming cupboard

Abstract

The utility model discloses a fuming cupboard acid mist discharging device which is characterized in that a ventilation box is mounted at the top of a fuming cupboard, and a ventilation pipe is fixedly connected to the top of the ventilation box in a penetrating manner; the exhaust fan is arranged in the ventilation box, and a filter plate is inserted into the side part of the ventilation box in a sliding manner; the connecting mechanism is arranged on the side portion of the ventilation box, the connecting mechanism is used for separating the exhaust fan and the filter plate from the ventilation box, and the exhaust device further comprises an outlet pipe which is fixedly inserted into the top of the ventilation cabinet in a penetrating mode; and a positioning frame. The traction frame, the sealing frame, the traction plate, the positioning plate, the bearing frame, the positioning column and the connecting piece are matched with one another, the traction frame and the traction plate respectively support the exhaust fan and the filter plate, the positioning column and the bearing frame are used for connecting and supporting the exhaust fan, and the positioning plate is used for limiting and protecting the traction frame and the traction plate; the positioning plate is connected and positioned by the connecting piece, so that the exhaust fan and the filter screen can be directly separated from the ventilation box, and the exhaust fan and the filter plate can be taken out for maintenance.

Description

Technical Field

[0001] This utility model relates to the field of acid mist emission from fume hoods, and in particular to an acid mist emission device for fume hoods. Background Technology

[0002] There are various types of fume hoods, including nuclear medicine fume hoods. Nuclear medicine fume hoods are devices specifically designed for handling volatile radioactive nuclides. Their main function is to prevent the leakage and volatilization of radioactive materials and to protect the safety of operators and the surrounding environment. When nuclear medicine fume hoods are in use, they usually produce gases such as acid mist, which necessitates the use of acid mist emission devices.

[0003] Existing fume hood acid mist emission devices typically include a fume box, ventilation duct, exhaust fan, and filter screen. The fume box is placed on top of the fume hood, the ventilation duct is inserted through the fume box, and the exhaust fan and filter screen are usually placed inside the fume box. The exhaust fan is used to extract the acid mist inside the fume hood, and after being filtered by the filter screen, it is discharged from inside the ventilation duct.

[0004] Exhaust fans and filters are usually installed inside fume hoods. However, when maintenance is required after prolonged use of the filters and exhaust fans, the fume hood usually needs to be removed first. But due to the connection of the exhaust pipe, the exhaust pipe needs to be disassembled first. This process can be cumbersome. Therefore, it is necessary for fume hood acid mist emission devices to facilitate the removal and maintenance of the exhaust fan. Utility Model Content

[0005] The purpose of this invention is to provide a fume hood acid mist emission device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fume hood acid mist emission device, comprising:

[0007] A fume hood with a ventilation box installed on top, and a ventilation duct is fixedly connected to the top of the ventilation box;

[0008] An exhaust fan is installed inside the ventilation box, and filter plates are slidably inserted into the side of the ventilation box;

[0009] A connecting mechanism is provided on the side of the ventilation box, which is used to separate the exhaust fan and filter plate from the ventilation box.

[0010] Preferred options also include:

[0011] Outlet pipe, which is fixedly inserted through the top of the fume hood;

[0012] A positioning frame is fixedly connected to the top of the fume hood, and the positioning frame is slidably inserted into the inner cavity of the fume hood.

[0013] A through groove is provided on the side of the ventilation box.

[0014] Preferably, the connecting mechanism includes:

[0015] A traction frame, which is fixedly connected to the side of the exhaust fan;

[0016] A sealing frame is fixedly connected to the inner wall of the traction frame, and the sealing frame is slidably inserted into the inner cavity of the first through groove.

[0017] A traction plate, which is fixedly connected to the side of the filter plate;

[0018] A positioning plate, which is attached to the side of the traction frame and the traction plate.

[0019] Preferably, the connecting mechanism further includes:

[0020] A connector, wherein the connector is disposed on the side of the ventilation box;

[0021] A support frame is fixedly connected to the inner wall of the ventilation box, and the top of the support frame is attached to the bottom of the filter plate;

[0022] The positioning column is fixedly connected to the other side of the exhaust fan, and the inner wall of the support frame is provided with a positioning groove that matches the positioning column.

[0023] Preferably, the connector includes:

[0024] A fixing frame is fixedly connected to the side of the positioning plate;

[0025] A support frame, which is fixedly connected to the top of the ventilation box and is located on the side of the positioning plate;

[0026] A vertical plate is fixedly connected to the top of the fume hood and is located inside the mounting frame.

[0027] Preferably, the connector further includes:

[0028] Threaded columns, adjacent threaded columns are respectively fixedly connected to the side of the support frame and the vertical plate, and adjacent threaded columns are respectively slidably inserted into the fixed frame and the positioning plate;

[0029] A threaded cap, which is threadedly inserted into the end of a threaded post.

[0030] The technical effects and advantages of this utility model are as follows:

[0031] This invention utilizes the cooperation of a traction frame, sealing frame, traction plate, positioning plate, bearing frame, positioning column, and connecting parts. The traction frame and traction plate support the exhaust fan and filter plate respectively, the positioning column and bearing frame connect and support the exhaust fan, the positioning plate limits and protects the traction frame and traction plate, and the connecting parts connect and position the positioning plate. This facilitates the direct separation of the exhaust fan and filter from the ventilation box, allowing for easy removal and maintenance of the exhaust fan and filter plate without disassembling the ventilation box and ventilation pipes. This optimizes the operation process and makes it more convenient. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0033] Figure 2 This is a front sectional view of the ventilation box of this utility model.

[0034] Figure 3 This is a front sectional view of the sealing frame of this utility model.

[0035] In the diagram: 1. Fume hood; 2. Ventilation box; 3. Ventilation duct; 4. Exhaust fan; 5. Outlet pipe; 6. Connecting mechanism; 61. Traction frame; 62. Sealing frame; 63. Traction plate; 64. Positioning plate; 65. Bearing frame; 66. Positioning column; 67. Fixing frame; 68. Support frame; 69. Threaded column; 610. Threaded cap; 611. Vertical plate; 7. Filter plate; 8. Positioning frame. Detailed Implementation

[0036] 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.

[0037] This utility model provides, for example Figure 1-3 The image shows an acid mist emission device for a fume hood.

[0038] Example 1

[0039] The fume hood 1 includes a fume box 2 mounted on top. The fume hood 1 typically consists of three parts: a control area, a working area, and an auxiliary area. The control area is located at the top for easy daily use and observation by the operator. The working area is located in the middle and uses a fully isolated, clean stainless steel working chamber with lead glass windows and manholes. The auxiliary area is located at the bottom and is equipped with an activity meter ionization chamber shielding well and a radioactive material shielding and conveying device. A ventilation pipe 3 is fixedly connected to the top of the fume box 2 to facilitate the exhaust of acid mist from inside the fume hood 1. An exhaust fan 4 is located inside the fume box 2 to facilitate the extraction of acid mist from inside the fume hood 1. Filter plates 7 are slidably inserted into the side of the fume box 2, and filter screens are provided on the filter plates 7 to facilitate the filtration of extracted gases such as acid mist. A connecting mechanism 6 is located on the side of the fume box 2 and is used to separate the exhaust fan 4 and filter plates 7 from the fume box 2.

[0040] Furthermore, it also includes an outlet pipe 5, a positioning frame 8, and a through groove. The outlet pipe 5 is conducive to being aligned with the exhaust fan 4, which in turn facilitates the extraction of acid mist from the inside of the fume hood 1. The positioning frame 8 is conducive to being connected to the fume box 2 for sealing the fume box 2. The outlet pipe 5 is fixedly inserted into the top of the fume hood 1, and the positioning frame 8 is fixedly connected to the top of the fume hood 1. The positioning frame 8 is slidably inserted into the inner cavity of the fume box 2, and the through groove is opened on the side of the fume box 2.

[0041] Furthermore, the connecting mechanism 6 includes a traction frame 61, a sealing frame 62, a traction plate 63, and a positioning plate 64. The traction frame 61 facilitates the support of the exhaust fan 4 and makes it easy to pull the exhaust fan 4 so that it can be directly pulled out from the inside of the ventilation box 2, optimizing the removal process and making the operation convenient. The sealing frame 62 facilitates the sealing between the traction frame 61 and the ventilation box 2. The traction plate 63 facilitates the support and pull-out of the filter plate 7 for removal and cleaning. The positioning plate 64 facilitates the compression and limiting of the sides of the traction frame 61 and the traction plate 63 for the installation and removal of the exhaust fan 4 and the filter plate 7. The traction frame 61 is fixedly connected to the side of the exhaust fan 4, the sealing frame 62 is fixedly connected to the inner wall of the traction frame 61, and the sealing frame 62 is slidably inserted into the inner cavity of the first through groove. The traction plate 63 is fixedly connected to the side of the filter plate 7, and the positioning plate 64 is attached to the sides of the traction frame 61 and the traction plate 63.

[0042] Furthermore, the connecting mechanism 6 also includes a connector, a support frame 65, and a positioning post 66. The support frame 65 is L-shaped, which facilitates the support of the filter plate 7 and the connection with the positioning post 66 for positioning the exhaust fan 4. The connector is located on the side of the ventilation box 2. The support frame 65 is fixedly connected to the inner wall of the ventilation box 2. The top of the support frame 65 fits against the bottom of the filter plate 7. The positioning post 66 is fixedly connected to the other side of the exhaust fan 4. The inner wall of the support frame 65 has a positioning groove that matches the positioning post 66.

[0043] Specifically, the connectors include a fixing frame 67, a support frame 68, and a vertical plate 611. The fixing frame 67 is L-shaped, which is beneficial for supporting and installing the positioning plate 64. The support frame 68 is beneficial for supporting the positioning plate 64 for installation. The vertical plate 611 is beneficial for supporting the threaded post 69, which facilitates the positioning of the positioning plate 64. The fixing frame 67 is fixedly connected to the side of the positioning plate 64. The support frame 68 is fixedly connected to the top of the ventilation box 2 and is located on the side of the positioning plate 64. The vertical plate 611 is fixedly connected to the top of the fume hood 1 and is located inside the fixing frame 67.

[0044] Example 2

[0045] Based on Embodiment 1, more specifically, the connector also includes a threaded post 69 and a threaded cap 610. The threaded post 69 facilitates connection with the fixing frame 67 and the positioning plate 64, thereby facilitating the positioning of the positioning plate 64. The threaded cap 610 helps to limit the position of the positioning plate 64 for installation and removal. Adjacent threaded posts 69 are respectively fixedly connected to the sides of the support frame 68 and the vertical plate 611. Adjacent threaded posts 69 are respectively slidably inserted into the fixing frame 67 and the positioning plate 64. The threaded cap 610 is threadedly inserted into the end of the threaded post 69.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fume hood acid mist emission device, characterized in that, include: A fume hood (1) has a ventilation box (2) installed on top, and a ventilation pipe (3) is fixedly connected to the top of the ventilation box (2). An exhaust fan (4) is installed inside the ventilation box (2), and a filter plate (7) is slidably inserted into the side of the ventilation box (2). A connecting mechanism (6) is provided on the side of the ventilation box (2). The connecting mechanism (6) is used to separate the exhaust fan (4) and the filter plate (7) from the ventilation box (2). The connecting mechanism (6) includes: A traction frame (61) is fixedly connected to the side of the exhaust fan (4); A sealing frame (62) is fixedly connected to the inner wall of the traction frame (61), and the sealing frame (62) is slidably inserted into the inner cavity of the first through groove; A traction plate (63) is fixedly connected to the side of the filter plate (7); Positioning plate (64), which is attached to the side of the traction frame (61) and the traction plate (63); A connector is provided on the side of the ventilation box (2); The support frame (65) is fixedly connected to the inner wall of the ventilation box (2), and the top of the support frame (65) is in contact with the bottom of the filter plate (7); The positioning column (66) is fixedly connected to the other side of the exhaust fan (4), and the inner wall of the support frame (65) is provided with a positioning groove that is compatible with the positioning column (66).

2. The fume hood acid mist emission device according to claim 1, characterized in that, Also includes: Outlet pipe (5), which is fixedly inserted through the top of fume hood (1); Positioning frame (8), the positioning frame (8) is fixedly connected to the top of the fume hood (1), and the positioning frame (8) is slidably inserted into the inner cavity of the fume box (2); A through slot is provided on the side of the ventilation box (2).

3. The fume hood acid mist emission device according to claim 1, characterized in that, The connector includes: A fixing frame (67) is fixedly connected to the side of the positioning plate (64); Support frame (68), which is fixedly connected to the top of ventilation box (2), and the support frame (68) is located on the side of positioning plate (64); A vertical plate (611) is fixedly connected to the top of the fume hood (1) and is located inside the mounting bracket (67).

4. The fume hood acid mist emission device according to claim 3, characterized in that, The connector also includes: Threaded columns (69), adjacent threaded columns (69) are respectively fixedly connected to the side of the support frame (68) and the vertical plate (611), and adjacent threaded columns (69) are respectively slidably inserted and connected to the fixed frame (67) and the positioning plate (64); A threaded cap (610) is threadedly connected to the end of a threaded post (69).

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