Radioactive gas filtering device

Abstract

The utility model discloses a radioactive gas filtering device, which belongs to the technical field of gas emission and comprises a bottom plate, four universal wheels fixedly connected to the lower end of the bottom plate, a vertical plate fixedly connected to the upper end of the bottom plate, a push rod fixedly connected to the rear end of the vertical plate and a filtering mechanism fixedly connected to the front end of the vertical plate. By means of the filtering mechanism, when nuclear medicine radioactive gas is filtered, the filtering speed can be increased, the filtering effect can be improved, a plurality of radioactive gas discharging pipes can be connected at the same time through the input assembly, the filtering speed of the device is increased, meanwhile, the radioactive gas can be subjected to adsorptive filtering, large-particle matter in the gas is adsorbed out, and the radioactive gas can be recycled. The filtering assembly is matched with the filtering piece, the adsorbed gas can be filtered again, radioactive substances contained in the gas can be filtered out, the functions of thorough filtering and rapid filtering can be achieved, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of gas emission technology, and more specifically, to a radioactive gas filtration device. Background Technology

[0002] Nuclear medicine radioactive gases refer to gases containing radioactive nuclides used in the field of nuclear medicine for diagnosis, treatment, and research. Nuclear medicine radioactive gas filtration devices are devices that can absorb and filter radioactive substances from nuclear medicine radioactive gases. They are also essential devices in nuclear medicine and are of great significance for protecting environmental safety and human health. Before emitting radioactive gases, filtration devices are needed to separate the radioactive nuclides from the radioactive gases to ensure that the radioactivity level of the emitted gases meets the standards set by national and local environmental protection departments, thereby reducing environmental pollution.

[0003] Chinese Patent Publication No. CN222056750U discloses a nuclear medicine radioactive gas filtration device. This solution can clean the inner wall of the filtration device through the function of the cleaning structure, avoiding the presence of solution containing nuclear medicine radioactive gas adhering to the wall, thus preventing internal contamination of the filtration device. At the same time, the filter plate can make the filtration of nuclear medicine radioactive gas more thorough. However, in the actual implementation process, the following defects still exist: the filtration efficiency and effect of this device are poor when filtering nuclear medicine radioactive gas.

[0004] Therefore, a radioactive gas filtration device is proposed to address the above-mentioned problems. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In view of the problems existing in the prior art, the purpose of this utility model is to provide a radioactive gas filtration device that can achieve thorough filtration and rapid filtration.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] A radioactive gas filtration device includes a base plate, four casters fixedly connected to the lower end of the base plate, a vertical plate fixedly connected to the upper end of the base plate, a push rod fixedly connected to the rear end of the vertical plate, and a filtration mechanism fixedly connected to the front end of the vertical plate.

[0010] Furthermore, the filtration mechanism includes an exhaust fan, the front end of which is fixedly connected to the rear end of the vertical plate, an output pipe fixedly connected to the left end of the exhaust fan, a connecting pipe fixedly connected to the right end of the exhaust fan, a transition pipe fixedly connected to the front end of the connecting pipe, a filter assembly fixedly connected to the left end of the transition pipe, and an input assembly fixedly connected inside the filter assembly.

[0011] Furthermore, the filter assembly includes two positioning plates, each with a connecting plate fixedly connected to its rear end. The rear ends of both connecting plates are fixedly connected to the front end of the vertical plate. A round tube is fixedly connected to one end of each positioning plate that is close to the other. Four locking rods are fixedly connected to the inner surfaces of both positioning plates. An air inlet is fixedly connected to the lower end of the lower positioning plate. Filter elements are movably connected to the inner surfaces of the two positioning plates that are close to each other. A connecting pipe is movably connected to the inner surfaces of the two filter elements that are close to each other.

[0012] Furthermore, the filter element includes an air intake plate, four support bars are movably connected to the inner surface of the air intake plate, a stabilizing plate is movably connected to the outer surface of the four support bars, a filter element is fixedly connected to the outer surface of the air intake plate, and the inner surface of the filter element is movably connected to the outer surface of the connecting pipe.

[0013] Furthermore, the input component includes two connecting seats, with fasteners fixedly connected to the ends of the two connecting seats that are far apart from each other. Two nuts are threadedly connected to the inner surfaces of the two connecting seats, and the outer surfaces of the four nuts are threadedly connected to the inner surface of the base plate. An adsorption tank is movably connected to the ends of the two connecting seats that are close to each other. Several input pipes are fixedly connected to the inner surface of the adsorption tank, and a second connecting pipe is fixedly connected to the inner surface of the adsorption tank. An activated carbon column is provided on the inner surface of the adsorption tank.

[0014] Furthermore, the outer surface of the connecting pipe is fixedly connected to the inner surface of the air inlet.

[0015] 3. Beneficial effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] This solution improves the speed and effectiveness of filtration when treating radioactive gases in nuclear medicine through a filtration mechanism. The input component allows for the simultaneous connection of multiple radioactive gas emission pipes to the device, increasing the filtration rate. Simultaneously, the input component performs adsorption filtration, removing large particles from the gas. The filtration component, in conjunction with filter elements, further filters the adsorbed gas to remove any remaining radioactive material. Finally, a fan exhausts the filtered gas from the device. The device is also easy to install and remove, facilitating filter replacement and maintenance, thus enhancing its practicality. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram of the filtration mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the filter assembly of this utility model;

[0021] Figure 4 This is a schematic diagram of the filter element of this utility model;

[0022] Figure 5 This is a schematic diagram of the input component of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Base plate; 2. Casters; 3. Vertical plate; 4. Push rod; 5. Filter mechanism; 51. Exhaust fan; 52. Connecting pipe one; 53. Transition pipe; 54. Filter assembly; 541. Positioning plate; 542. Connecting plate; 543. Round tube; 544. Locking rod; 545. Air inlet; 546. Filter element; 5461. Air inlet plate; 5462. Support bar; 5463. Stabilizing plate; 5464. Filter element; 547. Connecting pipe three; 55. Output pipe; 56. Input assembly; 561. Connecting seat; 562. Fastener; 563. Nut; 564. Adsorption tank; 565. Input pipe; 566. Activated carbon column; 567. Connecting pipe two. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example:

[0029] Please see Figure 1-5 A radioactive gas filtration device includes a base plate 1, four casters 2 fixedly connected to the lower end of the base plate 1, a vertical plate 3 fixedly connected to the upper end of the base plate 1, a push rod 4 fixedly connected to the rear end of the vertical plate 3, and a filtration mechanism 5 fixedly connected to the front end of the vertical plate 3.

[0030] This solution uses push rod 4 and four casters 2 to quickly push the device, improving the ease of use. The filter mechanism 5 can greatly improve the speed and effectiveness of filtration when using the device to filter radioactive gases in nuclear medicine.

[0031] Please see Figure 2-5 The filter mechanism 5 includes an exhaust fan 51. The front end of the exhaust fan 51 is fixedly connected to the rear end of the vertical plate 3. An output pipe 55 is fixedly connected to the left end of the exhaust fan 51. A connecting pipe 52 is fixedly connected to the right end of the exhaust fan 51. A transition pipe 53 is fixedly connected to the front end of the connecting pipe 52. A filter assembly 54 is fixedly connected to the left end of the transition pipe 53. An input assembly 56 is fixedly connected inside the filter assembly 54.

[0032] The filter assembly 54 includes two positioning plates 541. A connecting plate 542 is fixedly connected to the rear end of each positioning plate 541. The rear end of each connecting plate 542 is fixedly connected to the front end of the vertical plate 3. A round tube 543 is fixedly connected to the end of each positioning plate 541 that is close to each other. Four locking rods 544 are fixedly connected to the inner surface of each positioning plate 541. An air inlet 545 is fixedly connected to the lower end of the lower positioning plate 541. A filter element 546 is movably connected to the inner surface of each positioning plate 541 that is close to each other. A connecting tube 547 is movably connected to the inner surface of each filter element 546 that is close to each other.

[0033] The filter element 546 includes an air intake plate 5461, four support bars 5462 are movably connected to the inner surface of the air intake plate 5461, a stabilizing plate 5463 is movably connected to the outer surface of the four support bars 5462, a filter element 5464 is fixedly connected to the outer surface of the air intake plate 5461, and the inner surface of the filter element 5464 is movably connected to the outer surface of the connecting pipe 547.

[0034] The input component 56 includes two connecting seats 561. The ends of the two connecting seats 561 that are far apart from each other are fixedly connected to a fastener 562. The inner surfaces of the two connecting seats 561 are threaded with two nuts 563. The outer surfaces of the four nuts 563 are threaded to the inner surface of the base plate 1. The ends of the two connecting seats 561 that are close to each other are movably connected to an adsorption tank 564. The inner surface of the adsorption tank 564 is fixedly connected with several input pipes 565. The inner surface of the adsorption tank 564 is fixedly connected with a second connecting pipe 567. The outer surface of the second connecting pipe 567 is fixedly connected to the inner surface of the air inlet 545. An activated carbon column 566 is provided on the inner surface of the adsorption tank 564.

[0035] This solution involves fixing the lower connecting plate 542 to the vertical plate 3, then fixing four locking rods 544 to the lower connecting plate 542. The lower filter element 5464 can then be inserted into the lower connecting plate 542. Next, the connecting tube 547 and the upper filter element 5464 are placed inside. Finally, a round tube 543 is used to cover them. The upper connecting plate 542 is then placed along the outer surface of the four locking rods 544, using the four locking rods 544 to compress the gap between the two connecting plates 542, ensuring a tight seal between the two connecting plates 542 and the round tube 543 to prevent gas leakage. Finally, the lower connecting plate 542 is fixed to the vertical plate 3.

[0036] By unscrewing the four nuts 563, the two connecting seats 561 and the fasteners 562 can be removed, making it easier to replace the adsorption tank 564 and the activated carbon column 566.

[0037] By connecting several input pipes 565 to the radioactive gas emission pipe and the output pipe 55 to the hospital's exhaust system, the exhaust fan 51 is started. When the exhaust fan 51 is working, it will draw the gas inside the device outward. At this time, the radioactive gas will enter the adsorption tank 564 through the input pipes 565. Large particles of reflective material in the gas will be adsorbed by the activated carbon column 566 set inside the adsorption tank 564. Then the gas will enter the filter element 5464 through the connecting pipe 567 and the air inlet plate 5461. Under the action of the exhaust fan 51, the gas will be drawn out from the inside of the two filter elements 5464. When passing through the two filter elements 5464, it will undergo a second filtration, which will more thoroughly remove the radioactive material in the gas. With the continuous action of the exhaust fan 51, the radioactive gas will be continuously filtered and enter the transition pipe 53, and finally be discharged through the output pipe 55 and the connecting pipe 52.

[0038] It should be noted that the specific installation methods, circuit connection methods, and control methods of the exhaust fan 51, filter element 5464, and activated carbon column 566 in this utility model are all conventional designs, and will not be described in detail in this utility model.

[0039] Working principle: When using the device to filter radioactive gases for nuclear medicine, several input pipes 565 are connected to the radioactive gas emission pipe, and the output pipe 55 is connected to the hospital's exhaust system. Then, the exhaust fan 51 is started. When the exhaust fan 51 is working, it draws the gas inside the device outward. At this time, the radioactive gas will enter the adsorption tank 564 through the input pipes 565. Large particles of reflective material in the gas will be adsorbed by the activated carbon columns 566 installed inside the adsorption tank 564. Then the gas will... Following the connecting pipe 567 and through the air inlet plate 5461, the gas enters the interior of the filter element 5464. Under the action of the exhaust fan 51, the gas is drawn out from the interior of the two filter elements 5464. When passing through the two filter elements 5464, it undergoes a second filtration, which more thoroughly removes radioactive substances from the gas. With the continuous action of the exhaust fan 51, the radioactive gas is continuously filtered and enters the transition pipe 53. Finally, it is discharged into the hospital's exhaust system through the output pipe 55 and the connecting pipe 52, and is eventually discharged into the air.

[0040] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A radioactive gas filtration device, comprising a base plate (1), characterized in that: The bottom plate (1) is fixedly connected to four casters (2), the bottom plate (1) is fixedly connected to a vertical plate (3), the rear end of the vertical plate (3) is fixedly connected to a push rod (4), and the front end of the vertical plate (3) is fixedly connected to a filter mechanism (5). The filtration mechanism (5) includes an exhaust fan (51), the front end of which is fixedly connected to the rear end of the vertical plate (3), an output pipe (55) is fixedly connected to the left end of the exhaust fan (51), a connecting pipe (52) is fixedly connected to the right end of the exhaust fan (51), a transition pipe (53) is fixedly connected to the front end of the connecting pipe (52), a filter assembly (54) is fixedly connected to the left end of the transition pipe (53), and an input assembly (56) is fixedly connected inside the filter assembly (54). The filter assembly (54) includes two positioning plates (541), each of the two positioning plates (541) is fixedly connected to a connecting plate (542) at its rear end, and the rear end of each of the two connecting plates (542) is fixedly connected to the front end of the vertical plate (3). A round tube (543) is fixedly connected to one end of each of the two positioning plates (541) that are close to each other. Four locking rods (544) are fixedly connected to the inner surfaces of the two positioning plates (541). An air inlet (545) is fixedly connected to the lower end of the positioning plate (541) located on the lower side. A filter element (546) is movably connected to the inner surface of one side of each of the two positioning plates (541) that are close to each other. A connecting tube (547) is movably connected to the inner surface of one side of each of the two filter elements (546) that are close to each other. The filter element (546) includes an air intake plate (5461), four support bars (5462) are movably connected to the inner surface of the air intake plate (5461), a stabilizing plate (5463) is movably connected to the outer surface of the four support bars (5462), a filter element (5464) is fixedly connected to the outer surface of the air intake plate (5461), and the inner surface of the filter element (5464) is movably connected to the outer surface of the connecting pipe (547). The input component (56) includes two connecting seats (561). The ends of the two connecting seats (561) that are far apart from each other are fixedly connected to a fastener (562). The inner surfaces of the two connecting seats (561) are threaded with two nuts (563). The outer surfaces of the four nuts (563) are threaded to the inner surface of the base plate (1). The ends of the two connecting seats (561) that are close to each other are movably connected to an adsorption tank (564). The inner surface of the adsorption tank (564) is fixedly connected with several input pipes (565). The inner surface of the adsorption tank (564) is fixedly connected with a second connecting pipe (567). The inner surface of the adsorption tank (564) is provided with an activated carbon column (566).

2. The radioactive gas filtration device according to claim 1, characterized in that: The outer surface of the connecting pipe 2 (567) is fixedly connected to the inner surface of the air inlet (545).

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