Biological laboratory radioactive waste treatment device
By installing a backflow prevention unit with a positioning ring and a sealing plate in the decay pool exhaust pipe, the problem of airflow backflow under strong winds is solved, ensuring the treatment effect and air pressure stability of the decay pool.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-03-10
AI Technical Summary
During the use of the decay tank, in windy weather, the external airflow directly impacts the exhaust pipe outlet, causing the airflow to flow back and carry impurities into the decay tank, affecting the treatment effect and prolonging the treatment time.
An anti-backflow unit comprising a positioning ring, a first sealing plate, and a flipping component was designed. The combination of the positioning ring and the sealing plate provides dual protection to prevent gas backflow and ensure unidirectional gas flow.
It effectively prevents external airflow from flowing back into the decay pool, protects the internal air pressure balance of the decay pool, improves processing efficiency, and avoids impurities from entering and affecting the decay process.
Smart Images
Figure CN223986433U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of radioactivity waste harmless treatment technology, specifically to a biological laboratory radioactive waste treatment device. BACKGROUND
[0002] Radioactive waste liquid produced in biological laboratory is usually discharged into the inside of the decay tank, and its working principle is based on the half-life characteristics of radioactive substances to reduce the radioactivity level in waste water through natural decay process.
[0003] During the use of the decay tank, waste gas is discharged to the outside, and in windy weather, external airflow directly impacts the outlet of the exhaust pipe, causing airflow backflow, and the external airflow can carry impurities into the decay tank, affecting its treatment effect, and the external airflow can affect the air pressure balance inside the decay tank, resulting in prolonged treatment time of the decay tank, which has limitations.
[0004] The reason for this problem is that the external airflow will form a strong impact force due to the increase of wind speed, directly impacting the exhaust pipe outlet of the decay tank. This impact not only has great power, but also is difficult to predict the direction, which is easy to cause airflow backflow phenomenon, when the external airflow backflows into the exhaust pipe, the impurities and pollutants it carries will contact and mix with the radioactive waste water in the tank, thereby interfering and destroying the natural decay process of the waste water, affecting the decay rate of radioactive substances, and further reducing the treatment effect of the decay tank. The invasion of airflow will cause fluctuations in the air pressure inside the decay tank, resulting in prolonged treatment time, therefore we propose a biological laboratory radioactive waste treatment device to solve the above problems. UTILITY MODEL CONTENTS
[0005] In view of the deficiencies of the prior art, the utility model provides a biological laboratory radioactive waste treatment device, which solves the problem that in the use process of the decay tank, waste gas is discharged to the outside, in windy weather, external airflow directly impacts the outlet of the exhaust pipe, causing airflow backflow, external airflow carries impurities into the decay tank, affecting its treatment effect, and external airflow affects the air pressure balance inside the decay tank, resulting in prolonged treatment time of the decay tank, which has limitations.
[0006] To achieve the above purpose, the utility model is realized by the following technical scheme: a biological laboratory radioactive waste treatment device, comprising a decay tank, an exhaust pipe is arranged above the decay tank, an anti-backflow unit for preventing gas backflow is arranged in the inside of the exhaust pipe, the anti-backflow unit comprises a positioning ring, a first sealing plate and a turnover piece;
[0007] The positioning ring is located on the side near the exhaust pipe outlet; the first sealing plate is hinged to one side of the positioning ring, and the end of the first sealing plate is tightly fitted with the positioning ring; the flipping component is located at the connection between the positioning ring and the first sealing plate, and the flipping component is used to reset the first sealing plate after it is flipped.
[0008] Preferably, the flipping component includes a fixing block and a protrusion;
[0009] The fixing block is fixedly assembled on the upper end of one side of the positioning ring; the protrusion is fixedly assembled on the upper end of one side of the first sealing plate, and the protrusion is rotatably connected inside the fixing block.
[0010] Preferably, the flipping component further includes a torsion spring and a counterweight;
[0011] The torsion spring is disposed inside the fixed block, the torsion spring passes through the protrusion, one end of the torsion spring is fixedly assembled with the fixed block, and the other end of the torsion spring is fixedly assembled with the protrusion; the counterweight is fixedly installed at the lower end of the first sealing plate, and the counterweight is movably engaged inside the positioning ring.
[0012] Preferably, a fixing ring is provided on one side of the positioning ring, and a support frame is provided between the fixing ring and the positioning ring, and the support frame is fixedly assembled with the exhaust pipe.
[0013] Preferably, a guide post is fixedly mounted on one side of the support frame, and a second sealing plate is provided on one side of the guide post. The second sealing plate is slidably connected to the outer surface of the guide post, and the end of the second sealing plate is tightly fitted with the fixing ring.
[0014] Preferably, a spring is wound around the outer surface of the guide post, one end of the spring is fixedly assembled with the second sealing plate, and the other end of the spring abuts against the support frame.
[0015] Preferably, a first filter plate is provided inside the positioning ring, and a second filter plate is provided inside the fixing ring.
[0016] This utility model discloses a biological laboratory radioactive waste treatment device, which has the following beneficial effects: the device uses a combination of a fixing ring and a second filter plate to prevent outside air from entering the interior of the exhaust pipe. The combination of a positioning ring and a first sealing plate provides double protection. Even if the sealing effect of the fixing ring fails, the positioning ring can still prevent gas backflow or leakage, ensuring the safety of the system. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[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 internal structure of the exhaust pipe of this utility model;
[0020] Figure 3 This is a schematic diagram of the internal structure of the fixing ring of this utility model;
[0021] Figure 4 This is a schematic diagram of the positioning ring structure of this utility model.
[0022] In the diagram: 1. Decay cell; 2. Exhaust pipe; 3. Anti-backflow unit; 31. Positioning ring; 32. First sealing plate; 33. Flip-over component; 331. Fixing block; 332. Protrusion; 333. Torsion spring; 334. Counterweight; 34. First filter plate; 35. Fixing ring; 36. Second filter plate; 37. Support frame; 38. Guide column; 39. Second sealing plate; 310. Spring. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0024] This application provides a biological laboratory radioactive waste treatment device, which solves the problem that during the use of decay cells, waste gas is emitted to the outside. In windy weather, the outside airflow directly impacts the exhaust pipe outlet, causing backflow. The outside airflow carries impurities into the decay cell, affecting its treatment effect. Furthermore, the outside airflow affects the internal pressure balance of the decay cell, leading to a longer treatment time and limitations.
[0025] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.
[0026] Example 1
[0027] This utility model discloses a device for treating radioactive waste in biological laboratories. According to the appendix... Figures 1-3 As shown, it includes a decay cell 1, an exhaust pipe 2 is provided above the decay cell 1, and an anti-backflow unit 3 is provided inside the exhaust pipe 2 to prevent gas backflow. The anti-backflow unit 3 includes a positioning ring 31, a first sealing plate 32 and a flipping component 33.
[0028] The positioning ring 31 is located on one side near the air outlet of the exhaust pipe 2; the first sealing plate 32 is hinged to one side of the positioning ring 31, and the end of the first sealing plate 32 is tightly fitted with the positioning ring 31; the flipping part 33 is located at the connection between the positioning ring 31 and the first sealing plate 32, and the flipping part 33 is used to reset the first sealing plate 32 after it is flipped.
[0029] A fixing ring 35 is provided on one side of the positioning ring 31. A support frame 37 is provided between the fixing ring 35 and the positioning ring 31. The support frame 37 is fixedly assembled with the exhaust pipe 2. A guide post 38 is fixedly assembled on one side of the support frame 37. A second sealing plate 39 is provided on one side of the guide post 38. The second sealing plate 39 is slidably connected to the outer surface of the guide post 38. The end of the second sealing plate 39 is tightly fitted with the fixing ring 35. A spring 310 is wound around the outer surface of the guide post 38. One end of the spring 310 is fixedly assembled with the second sealing plate 39. The other end of the spring 310 abuts against the support frame 37. A first filter plate 34 is provided inside the positioning ring 31. A second filter plate 36 is provided inside the fixing ring 35.
[0030] In this embodiment, when the device is used, radioactive wastewater is put into the decay pool 1 and stored in the pool. The radioactive material gradually reduces its radioactivity activity through a natural decay process in the pool. The gas is discharged through the exhaust pipe 2 and filtered by the second filter plate 36. The gas pushes the second sealing plate 39 to one side of the support frame 37. At this time, the spring 310 contracts, and the gas is discharged through the gap between the second sealing plate 39 and the fixing ring 35. After the gas is processed, the discharge stops. The gas loses its thrust, and under the reaction force of the spring 310, the second sealing plate 39 and the fixing ring 35 are tightly fitted, so that the gas can only flow in one direction.
[0031] Example 2
[0032] This utility model discloses a biological laboratory radioactive waste treatment device. More specifically, based on Embodiment 1, it is provided according to the appendix... Figure 1 , 4 As shown, it includes a decay cell 1, an exhaust pipe 2 is provided above the decay cell 1, and an anti-backflow unit 3 is provided inside the exhaust pipe 2 to prevent gas backflow. The anti-backflow unit 3 includes a positioning ring 31, a first sealing plate 32 and a flipping component 33.
[0033] The positioning ring 31 is located on one side near the air outlet of the exhaust pipe 2; the first sealing plate 32 is hinged to one side of the positioning ring 31, and the end of the first sealing plate 32 is tightly fitted with the positioning ring 31; the flipping part 33 is located at the connection between the positioning ring 31 and the first sealing plate 32, and the flipping part 33 is used to reset the first sealing plate 32 after it is flipped.
[0034] The flipping component 33 includes a fixing block 331 and a protrusion 332; the fixing block 331 is fixedly mounted on the upper end of one side of the positioning ring 31; the protrusion 332 is fixedly mounted on the upper end of one side of the first sealing plate 32, and the protrusion 332 is rotatably connected inside the fixing block 331. The flipping component 33 also includes a torsion spring 333 and a counterweight 334; the torsion spring 333 is disposed inside the fixing block 331, and the torsion spring 333 passes through the protrusion 332. One end of the torsion spring 333 is fixedly mounted to the fixing block 331, and the other end of the torsion spring 333 is fixedly mounted to the protrusion 332; the counterweight 334 is fixedly mounted on the lower end of the first sealing plate 32, and the counterweight 334 is movably engaged inside the positioning ring 31.
[0035] In this embodiment, the gas passes through the positioning ring 31 and is filtered a second time by the first filter plate 34. The gas blows the first sealing plate 32 and flips it over. At this time, the torsion spring 333 tightens. The fixing block 331 has a rotating shaft inside, and the torsion spring 333 is wound on the rotating shaft. The rotating shaft is rotatably connected to the fixing block 331 and fixedly assembled with the protrusion 332. Therefore, when the first sealing plate 32 is blown and flipped, the torsion spring 333 tightens. After the gas is processed, it stops being discharged and loses the thrust of the gas. Under the reaction force of the torsion spring 333, the first sealing plate 32 abuts against the positioning ring 31, so that the gas can only flow in one direction. Since the positioning ring 31 is installed at an angle inside the exhaust pipe 2, under the action of gravity, the counterweight 334 is engaged inside the positioning ring 31, so that the first sealing plate 32 and the positioning ring 31 fit tightly together, which meets the user's needs.
[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A biological laboratory radioactive waste disposal device comprising a decay tank (1), an exhaust pipe (2) is arranged above the decay tank (1), characterized in that, The inside of the exhaust pipe (2) is provided with an anti-backflow unit (3) for preventing gas backflow, the anti-backflow unit (3) comprises: A positioning ring (31) is arranged on one side close to the air outlet of the exhaust pipe (2); A first sealing plate (32) is hinged on one side of the positioning ring (31), and the end of the first sealing plate (32) is tightly attached to the positioning ring (31); A turnover part (33) is arranged at the connection between the positioning ring (31) and the first sealing plate (32), and the turnover part (33) is used to reset the first sealing plate (32) after it is turned over.
2. A biological laboratory radioactive waste disposal device according to claim 1, characterized in that: The turnover part (33) comprises: A fixed block (331) is fixedly assembled on the upper end of one side of the positioning ring (31); A protruding block (332) is fixedly assembled on the upper end of one side of the first sealing plate (32), and the protruding block (332) is rotationally connected in the inside of the fixed block (331).
3. A biological laboratory radioactive waste disposal device according to claim 1, wherein: The turnover part (33) further comprises: A torsional spring (333) is arranged in the inside of the fixed block (331), the torsional spring (333) penetrates through the protruding block (332), one end of the torsional spring (333) is fixedly assembled with the fixed block (331), and the other end of the torsional spring (333) is fixedly assembled with the protruding block (332); A counterweight block (334) is fixedly installed on the lower end of the first sealing plate (32), and the counterweight block (334) is movably clamped in the inside of the positioning ring (31).
4. A biological laboratory radioactive waste disposal device according to claim 1, wherein: One side of the positioning ring (31) is provided with a fixed ring (35), and a support frame (37) is arranged between the positioning ring (31) and the fixed ring (35), and the support frame (37) is fixedly assembled with the exhaust pipe (2).
5. A biological laboratory radioactive waste disposal apparatus as defined in claim 4, wherein: One side of the support frame (37) is fixedly assembled with a guide column (38), one side of the guide column (38) is provided with a second sealing plate (39), the second sealing plate (39) is slidingly connected to the outer surface of the guide column (38), and the end of the second sealing plate (39) is tightly attached to the fixed ring (35).
6. A biological laboratory radioactive waste disposal apparatus as defined in claim 5, wherein: The outer surface of the guide column (38) is wound with a spring (310), one end of the spring (310) is fixedly assembled with the second sealing plate (39), and the other end of the spring (310) abuts against the support frame (37).
7. A biological laboratory radioactive waste disposal apparatus as defined in claim 4 wherein: The inside of the positioning ring (31) is provided with a first filter plate (34), and the inside of the fixed ring (35) is provided with a second filter plate (36).