A device for treating radioactive gas before discharge

Abstract

The present invention belongs to the technical field of gas treatment, and specifically is a treatment device for radioactive gas before discharge, comprising a catalyst reactor, an activated carbon adsorber is fixed on one side of the catalyst reactor, an exhaust pump is fixed on the side of the catalyst reactor away from the activated carbon adsorber, an air intake box is installed on the side of the activated carbon adsorber away from the air intake box, an air intake pipe is fixed on the top of the air intake box, and a pretreatment structure for filtering solid particles in the gas is arranged inside the air intake box; the airflow generated by the inlet and outlet gases drives the wind wheel to rotate, the wind wheel drives the transmission roller to roll to make the metal mesh belt roll, the metal mesh belt rolls and gets wet inside the air intake box, the air intake pipe blows out gas to blow away the moisture inside the metal mesh belt, and at the same time, the solid particles inside the gas are adsorbed by the moisture and fall together into the inside of the air intake box, so that the solid particles can be filtered out.

Description

Technical Field

[0001] The invention belongs to the technical field of gas processing, in particular to a device for processing radioactive gas before discharge. Background Art

[0002] Radioactive gas refers to gas containing radioactive nuclides. Radioactive gas is usually produced in industrial production. Radioactive gas contains many substances that are harmful to the human body. Direct contact with the human body will cause a greater impact. Therefore, the radioactive gas needs to be treated before it is discharged to filter out harmful substances inside.

[0003] Conventional treatment of radioactive gases requires the gas to undergo multiple stages of treatment, wherein solid particles in the radioactive gas are filtered out during gas pretreatment. However, after long-term use, the solid particles will fill up the filter element, making it impossible to filter out the solid particles. A new filter element needs to be replaced, which is a rather troublesome operation.

[0004] To this end, the present invention provides a device for treating radioactive gases before they are discharged. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is: the radioactive gas treatment device before discharge described in the present invention includes a catalyst reactor, an activated carbon adsorber is fixed on one side of the catalyst reactor, an exhaust pump is fixed on the side of the catalyst reactor away from the activated carbon adsorber, an air intake box is installed on the side of the activated carbon adsorber away from the air intake box, an air intake pipe is fixed on the top of the air intake box, and a pretreatment structure for filtering solid particles in the gas is arranged inside the air intake box.

[0007] Preferably, the pretreatment structure includes a metal mesh belt arranged inside the air intake box, the interior of the metal mesh belt is provided with four transmission rollers, the four transmission rollers are arranged at the four corners inside the air intake box, both ends of the four transmission rollers are movably connected to the air intake box, a connecting cylinder is fixed on the side of the air intake box close to the activated carbon adsorber, a wind turbine is arranged inside the connecting cylinder, a bracket is movably connected to the outside of the side of the wind turbine close to the air intake box, the bracket is fixedly connected to the connecting cylinder, a second pulley is fixed to one end of the wind turbine close to the air intake box, a first pulley is fixed to one end of one of the transmission rollers close to the second pulley, a belt is provided on the outside of the second pulley and the first pulley, and the second pulley and the first pulley are connected by a belt.

[0008] Preferably, an air guide cover is fixed to the bottom end of the air intake pipe, guide frames are fixed to both sides of the bottom end of the air guide cover, guide rollers are movably connected to the top and bottom of the guide frames, and the metal mesh belt is clamped between the guide frames.

[0009] Preferably, a guide plate is provided inside the metal mesh belt, and a higher side of the guide plate is fixedly connected to a side of the air intake box close to the activated carbon adsorber, and ultrasonic transducers are installed on both sides of the air intake box.

[0010] Preferably, a dirt collecting hopper is fixed to the bottom end of the air intake box, a dirt guiding pipe is fixed to the bottom end of the dirt collecting hopper, a dirt discharge pipe is fixed to the side of the dirt guiding pipe away from the dirt collecting hopper, and a flip wheel is rotatably connected to the inside of the dirt discharge pipe.

[0011] Preferably, a water supply pipe is fixed to the side of the air intake box away from the activated carbon adsorber, a telescopic cavity is opened inside the water supply pipe, a spring is fixed inside the telescopic cavity, an insert block is fixed to the bottom end of the spring, a slot is provided below the telescopic cavity, and a plug-in structure is formed between the insert block and the slot.

[0012] Preferably, the water supply pipe is internally rotatably connected to a gear, both ends of the gear are fixed with pulleys, a plurality of racks are fixed to the side of the plug block close to the gear, the gear is meshed and connected to the plug block through the racks, and pulleys are also fixed to both ends of the flip wheel, and the pulley of the flip wheel is connected to the outside of the pulley of the gear through a sleeve belt.

[0013] Preferably, a water storage tank is fixed to one end of the water supply pipe away from the air intake box, a drainage pipe is fixed to the top of the water storage tank, and a water inlet pipe is fixed to the top of the drainage pipe.

[0014] Preferably, a guide plate is fixed inside the water tank, a float is arranged below the guide plate, a connecting rod is fixed to the top of the float, a sealing ball is fixed to the top of the connecting rod, the outer diameter of the sealing ball matches the inner diameter of the drain pipe, and the connecting rod of the float passes through the inside of the guide plate.

[0015] Preferably, the outer diameter of the floating ball is larger than the outer diameter of the blocking ball.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The present invention relates to a treatment device for radioactive gas before discharge. The airflow generated by the inlet and outlet gases drives the wind wheel to rotate. The wind wheel drives the transmission roller to roll to make the metal mesh belt roll. The metal mesh belt rolls and gets wet inside the air inlet box. The air inlet pipe blows out gas to blow away the moisture inside the metal mesh belt. At the same time, the solid particles inside the gas are absorbed by the moisture and fall into the inside of the air inlet box together, so that the solid particles can be filtered out.

[0018] 2. The device for treating radioactive gas before it is discharged described in the present invention can clean the solids inside the metal mesh belt by emitting ultrasonic waves through an ultrasonic transducer to prevent the metal mesh belt from being blocked. The sewage collecting hopper can guide the solid particles inside the air intake box and discharge them through the sewage pipe. At the same time, the water inside the water storage tank is supplemented to the inside of the air intake box through the water supply pipe, thereby realizing the synchronous water supply to the inside of the air intake box. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 is a stereogram of the present invention;

[0021] Figure 2 It is a schematic diagram of the air intake box structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the internal structure of the air intake box of the present invention;

[0023] Figure 4 It is a schematic diagram of the metal mesh belt structure of the present invention;

[0024] Figure 5 It is a schematic diagram of the internal structure of the air guide cover of the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the guide plate of the present invention;

[0026] Figure 7 It is a schematic diagram of the internal structure of the water storage tank of the present invention;

[0027] Figure 8 It is a schematic diagram of the internal structure of the water supply pipe of the present invention.

[0028] In the figure: 1. catalyst reactor; 2. activated carbon adsorber; 3. air inlet box; 31. metal mesh belt; 311. transmission roller; 312. first pulley; 32. wind turbine; 321. second pulley; 33. sewage collecting hopper; 331. sewage guide pipe; 332. sewage discharge pipe; 333. flip wheel; 34. guide plate; 35. water supply pipe; 351. gear; 352. telescopic chamber; 353. spring; 354. plug; 355. rack; 356. slot; 36. water storage tank; 361. water inlet pipe; 362. drainage pipe; 363. float; 364. blocking ball; 365. guide plate; 37. ultrasonic transducer; 4. air inlet pipe; 41. air guide cover; 411. guide frame; 412. guide roller; 5. vacuum pump. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0030] like Figure 1 to Figure 2 As shown, a radioactive gas treatment device before discharge according to an embodiment of the present invention comprises a catalyst reactor 1, an activated carbon adsorber 2 is fixed to one side of the catalyst reactor 1, an air pump 5 is fixed to the side of the catalyst reactor 1 away from the activated carbon adsorber 2, an air intake box 3 is installed to the side of the activated carbon adsorber 2 away from the air intake box 3, an air intake pipe 4 is fixed to the top of the air intake box 3, and a pretreatment structure for filtering solid particles in the gas is arranged inside the air intake box 3;

[0031] A large amount of waste gas will be generated in industrial production, some of which contain radioactive elements. Such gas will pollute the environment if it is directly discharged into the atmosphere, and it will need to be treated before discharge. The air intake pipe 4 is connected to the exhaust pipe of the radioactive gas. As the air intake pipe 4 inputs the radioactive gas into the air intake box 3, the vacuum pump 5 is started at the same time to exhaust the catalyst reactor 1. At this time, the vacuum pump 5 can speed up the flow rate of the gas inside the air intake pipe 4. At this time, the pretreatment structure inside the air intake box 3 filters out the solid particles in the gas, and then the filtered gas enters the activated carbon adsorber 2. The activated carbon adsorber 2 can adsorb the radioactive substances in the gas, and then the gas enters the catalyst reactor 1. The catalyst reactor 1 can convert the radioactive substances in the gas into stable substances, and the treated gas is extracted by the vacuum pump 5.

[0032] like Figures 2 to 4 As shown, the pretreatment structure includes a metal mesh belt 31 arranged inside the air intake box 3, the metal mesh belt 31 is internally sleeved with four transmission rollers 311, the four transmission rollers 311 are arranged at the four corners inside the air intake box 3, both ends of the four transmission rollers 311 are movably connected to the air intake box 3, a connecting cylinder is fixed on the side of the air intake box 3 close to the activated carbon adsorber 2, a wind turbine 32 is arranged inside the connecting cylinder, a bracket is movably connected to the outside of the wind turbine 32 close to the air intake box 3, the bracket is fixedly connected to the connecting cylinder, a second pulley 321 is fixed to one end of the wind turbine 32 close to the air intake box 3, a first pulley 312 is fixed to one end of one of the transmission rollers 311 close to the second pulley 321, a belt is sleeved on the outside of the second pulley 321 and the first pulley 312, and the second pulley 321 and the first pulley 312 are connected by a belt;

[0033] When pre-treating the radioactive gas, clean water is added to the inside of the air intake box 3, and the liquid level of the clean water is not higher than the bottom end height of the connecting tube of the air intake box 3. When the vacuum pump 5 extracts the gas, the gas flow rate inside the air intake box 3 will be accelerated. At this time, the wind wheel 32 will rotate with the flow of the gas. At this time, the wind wheel 32 drives the second pulley 321 to rotate, and the second pulley 321 drives the first pulley 312 to rotate through the belt. At this time, the first pulley 312 drives the transmission roller 311 to roll, and the transmission roller 311 rolls and drives the metal mesh belt 31 to roll. At the same time, the other three transmission rollers 311 supports the metal mesh belt 31. When the metal mesh belt 31 rolls, it will be immersed in clean water. The clean water will soak the inside of the metal mesh belt 31 and remain in the small holes inside the metal mesh belt 31. When the soaked metal mesh belt 31 moves to the bottom of the air inlet pipe 4, the air inlet pipe 4 inputs radioactive gas. At this time, the gas blows through the inside of the metal mesh belt 31. During the blowing process, the moisture inside the metal mesh belt 31 will be blown out. At the same time, the solid particles inside the radioactive gas will be absorbed by the water and fall to the bottom of the air inlet box 3. The adsorption of solid particles by water can prevent blockage.

[0034] like Figures 4 to 5 As shown, an air guide cover 41 is fixed to the bottom end of the air intake pipe 4, guide frames 411 are fixed to both sides of the bottom end of the air guide cover 41, guide rollers 412 are movably connected to the top and bottom of the guide frames 411, and the metal mesh belt 31 is clamped between the guide frames 411;

[0035] When the metal mesh belt 31 rolls, the guide frame 411 clamps it under the air guide hood 41, and the metal mesh belt 31 can be moved to the bottom end of the air guide hood 41 through the guide roller 412. At this time, the distance between the air guide hood 41 and the metal mesh belt 31 is always kept consistent, so that the air guide hood 41 can spray the moisture inside the metal mesh belt 31 more evenly.

[0036] like Figure 6 As shown, a guide plate 34 is provided inside the metal mesh belt 31, and a higher side of the guide plate 34 is fixedly connected to a side of the air intake box 3 close to the activated carbon adsorber 2, and ultrasonic transducers 37 are installed on both sides of the air intake box 3;

[0037] When the air guide hood 41 blows down the air inside the metal mesh belt 31, the guide plate 34 can catch the fallen water droplets and guide the fallen water droplets to the bottom end of the air intake box 3 through the guide plate 34 to prevent solid particles from falling on the surface of the metal mesh belt 31 and affecting the subsequent filtering effect. At the same time, the ultrasonic transducer 37 generates ultrasonic waves, which can clean the metal mesh belt 31 immersed in the water at the bottom of the air intake box 3, and can clean the residual particles inside the metal mesh belt 31 when filtering out solid particles, thereby preventing long-term accumulation from causing blockage inside the metal mesh belt 31.

[0038] like Figure 6 to Figure 7 As shown, a dirt collecting bucket 33 is fixed at the bottom end of the air intake box 3, a dirt guiding pipe 331 is fixed at the bottom end of the dirt collecting bucket 33, a dirt discharge pipe 332 is fixed on the side of the dirt guiding pipe 331 away from the dirt collecting bucket 33, and a flip wheel 333 is rotatably connected inside the dirt discharge pipe 332;

[0039] When solid particles enter the water, they will sink to the bottom of the air intake box 3 due to gravity. At this time, the dirt collecting bucket 33 will guide the solid particles and move them to the inside of the sewage pipe 331. After long-term use, the solid particles will need to be discharged to prevent blockage. At this time, the open end of the sewage pipe 332 is connected through an external device to absorb the water flow and solid particles inside the sewage pipe 331. At this time, the flow of water will drive the flip wheel 333 to flip.

[0040] like Figures 7 and 8 As shown, a water supply pipe 35 is fixed to the side of the air intake box 3 away from the activated carbon adsorber 2, a telescopic cavity 352 is provided inside the water supply pipe 35, a spring 353 is fixed inside the telescopic cavity 352, an insert block 354 is fixed to the bottom end of the spring 353, a slot 356 is provided below the telescopic cavity 352, and a plug-in structure is formed between the insert block 354 and the slot 356;

[0041] The insert block 354 is pushed by the elastic force of the spring 353 and inserted into the interior of the slot 356 , so as to block the interior of the water supply pipe 35 to prevent water leakage during use.

[0042] like Figure 1 to Figure 2 As shown, the inner part of the water supply pipe 35 is rotatably connected with a gear 351, both ends of the gear 351 are fixed with pulleys, a plurality of racks 355 are fixed on one side of the plug block 354 close to the gear 351, the gear 351 is meshed and connected with the plug block 354 through the racks 355, and pulleys are also fixed at both ends of the flip wheel 333, and the pulley of the flip wheel 333 is connected with the outer part of the pulley of the gear 351 through a sleeve belt;

[0043] During the flipping process of the flipping wheel 333, the belt is driven to roll through the pulleys at both ends, and the belt drives the pulleys at both ends of the gear 351 to roll. At this time, the gear 351 is driven to roll, and the gear 351 is engaged with the rack 355 to lift the plug 354 upward. When lifted, the interior of the water supply pipe 35 is opened, and the interior of the air intake box 3 can be injected with water through the water supply pipe 35 to make up for the water missing in the air intake box 3 when the sewage pipe 332 drains water.

[0044] like Figure 7 As shown, a water storage tank 36 is fixed to one end of the water supply pipe 35 away from the air intake box 3, a drain pipe 362 is fixed to the top of the water storage tank 36, and a water inlet pipe 361 is fixed to the top of the drain pipe 362;

[0045] When the water supply pipe 35 is filled with water, the water storage tank 36 provides a water source to the water supply pipe 35 , and the water inlet pipe 361 is connected to an external water source. The water storage tank 36 is used to store water when the water supply pipe 35 is not filled with water.

[0046] like Figure 7 As shown, a guide plate 365 is fixed inside the water storage tank 36, a floating ball 363 is arranged below the guide plate 365, a connecting rod is fixed to the top of the floating ball 363, a blocking ball 364 is fixed to the top of the connecting rod, the outer diameter of the blocking ball 364 matches the inner diameter of the drain pipe 362, and the connecting rod of the floating ball 363 runs through the inside of the guide plate 365;

[0047] During the water storage process inside the water tank 36, the float 363 floats on the water surface. As the water level rises after the water is stored in the water tank 36, the position of the float 363 also rises synchronously. The float 363 drives the blocking ball 364 to extend into the drain pipe 362. When the blocking ball 364 is completely filled in the drain pipe 362, the water stops flowing out of the drain pipe 362, and automatic water storage can be completed.

[0048] like Figure 7 As shown, the outer diameter of the floating ball 363 is greater than the outer diameter of the blocking ball 364;

[0049] The buoyancy of the floating ball 363 can push the blocking ball 364 upward.

[0050] Working principle: A large amount of waste gas will be generated in industrial production, some of which contain radioactive elements. Such gas will pollute the environment if it is directly discharged into the atmosphere, and it will need to be treated before discharge. The air intake pipe 4 is connected to the exhaust pipe of the radioactive gas. When pre-treating the radioactive gas, clean water is added to the inside of the air intake box 3. The liquid level of the clean water is not higher than the bottom end height of the connecting tube of the air intake box 3. When the vacuum pump 5 extracts the gas, the gas flow rate inside the air intake box 3 will be accelerated. At this time, the wind wheel 32 will rotate with the flow of gas. At this time, the wind wheel 32 drives the second pulley 321 to rotate, and the second pulley 321 drives the first pulley 312 to rotate through the belt. At this time, the first pulley 31 2 drives the transmission roller 311 to roll, and the rolling of the transmission roller 311 drives the metal mesh belt 31 to roll, while the other three transmission rollers 311 support the metal mesh belt 31. When the metal mesh belt 31 rolls, it will be immersed in the clean water, and the clean water will soak the inside of the metal mesh belt 31 and remain in the small holes inside the metal mesh belt 31. When the soaked metal mesh belt 31 moves to the bottom end of the air inlet pipe 4, the air inlet pipe 4 inputs radioactive gas, and at this time the gas blows through the inside of the metal mesh belt 31. During the blowing process, the moisture inside the metal mesh belt 31 will be blown out, and at the same time, the solid particles inside the radioactive gas will be absorbed by the water and fall to the bottom of the air inlet box 3. The adsorption of the solid particles by the water can prevent the blockage.

[0051] When the air guide 41 blows down the air inside the metal mesh belt 31, the guide plate 34 can catch the falling water droplets, and guide the falling water droplets to the bottom of the air intake box 3 through the guide plate 34, so as to prevent the solid particles from falling on the surface of the metal mesh belt 31 and affecting the subsequent filtering effect. At the same time, the ultrasonic transducer 37 generates ultrasonic waves, so that the metal mesh belt 31 immersed in the water at the bottom of the air intake box 3 can be cleaned, and the particles remaining inside the metal mesh belt 31 can be cleaned out when the solid particles are filtered out, so as to prevent the metal mesh belt 31 from being blocked due to long-term accumulation.

[0052] When solid particles enter the water, they will sink to the bottom of the air intake box 3 due to gravity. At this time, the dirt collecting bucket 33 will guide the solid particles, and the solid particles will move to the inside of the sewage pipe 331. After long-term use, the solid particles will need to be discharged to prevent blockage. At this time, the open end of the sewage pipe 332 is connected through an external device to absorb the water flow and solid particles inside the sewage pipe 331. At this time, the flow of water will drive the flip wheel 333 to flip. During the flipping process of the flip wheel 333, the pulleys at both ends drive the belt to roll, and the belt drives the pulleys at both ends of the gear 351 to roll. At this time, the gear 351 is driven to roll, and the gear 351 is engaged with the rack 355 to lift the plug 354 upwards. When lifting, the water supply pipe 354 is retracted. The interior of the air inlet box 35 is opened, and water can be injected into the air inlet box 3 through the water supply pipe 35 to supplement the water missing in the air inlet box 3 when the sewage pipe 332 is drained. The water storage tank 36 provides a water source for the water supply pipe 35, and the water inlet pipe 361 is connected with the external water source. The water storage tank 36 is used to store water when the water supply pipe 35 is not filled with water. During the water storage process inside the water storage tank 36, the float 363 floats on the water surface. As the water level rises after the water storage tank 36 is stored, the position of the float 363 also rises synchronously. The float 363 drives the blocking ball 364 to extend into the interior of the drain pipe 362. When the blocking ball 364 is completely filled in the interior of the drain pipe 362, the water inside the drain pipe 362 stops flowing, and automatic water storage can be completed.

[0053] The filtered gas then enters the interior of the activated carbon adsorber 2, which can adsorb radioactive substances in the gas. The gas then enters the interior of the catalyst reactor 1, which can convert the radioactive substances in the gas into stable substances. The treated gas is extracted by the vacuum pump 5.

[0054] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A device for treating radioactive gases before they are discharged, characterized in that: The invention comprises a catalyst reactor (1), an activated carbon adsorber (2) being fixed on one side of the catalyst reactor (1), an air pump (5) being fixed on the side of the catalyst reactor (1) away from the activated carbon adsorber (2), an air intake box (3) being installed on the side of the activated carbon adsorber (2) away from the catalyst reactor (1), an air intake pipe (4) being fixed on the top of the air intake box (3), and a pretreatment structure for filtering out solid particles in the gas being arranged inside the air intake box (3); The pretreatment structure comprises a metal mesh belt (31) arranged inside the air intake box (3), four transmission rollers (311) are sleeved inside the metal mesh belt (31), the four transmission rollers (311) are arranged at four corners inside the air intake box (3), both ends of the four transmission rollers (311) are movably connected to the air intake box (3), a connecting cylinder is fixed on one side of the air intake box (3) close to the activated carbon adsorber (2), a wind turbine (32) is arranged inside the connecting cylinder, and the wind turbine (32) is close to the air intake box (3). A bracket is movably connected to the outside of one side of the air box (3), and the bracket is fixedly connected to the connecting tube. A second pulley (321) is fixed to one end of the wind wheel (32) close to the air inlet box (3), and a first pulley (312) is fixed to one end of one of the transmission rollers (311) close to the second pulley (321). A belt is sleeved on the outside of the second pulley (321) and the first pulley (312), and the second pulley (321) and the first pulley (312) are connected via the belt. A dirt collecting bucket (33) is fixed at the bottom end of the air intake box (3), a dirt guiding pipe (331) is fixed at the bottom end of the dirt collecting bucket (33), a dirt discharge pipe (332) is fixed on a side of the dirt guiding pipe (331) away from the dirt collecting bucket (33), and a turning wheel (333) is rotatably connected inside the dirt discharge pipe (332); A water supply pipe (35) is fixed to a side of the air intake box (3) away from the activated carbon adsorber (2); a telescopic cavity (352) is provided inside the water supply pipe (35); a spring (353) is fixed inside the telescopic cavity (352); an insert block (354) is fixed to the bottom end of the spring (353); a slot (356) is provided below the telescopic cavity (352); a plug-in structure is formed between the insert block (354) and the slot (356); The water supply pipe (35) is internally rotatably connected to a gear (351), and pulleys are fixed to both ends of the gear (351). A plurality of racks (355) are fixed to a side of the plug block (354) close to the gear (351), and the gear (351) is meshedly connected to the plug block (354) via the racks (355). Pulleys are also fixed to both ends of the flip wheel (333), and the pulley of the flip wheel (333) is connected to the outside of the pulley of the gear (351) via a sleeve belt.

2. The device for treating radioactive gas before discharge according to claim 1, characterized in that: An air guide cover (41) is fixed to the bottom end of the air intake pipe (4), guide frames (411) are fixed to both sides of the bottom end of the air guide cover (41), guide rollers (412) are movably connected at the top and bottom of the guide frames (411), and the metal mesh belt (31) is clamped between the guide frames (411).

3. The device for treating radioactive gas before discharge according to claim 2, characterized in that: A guide plate (34) is provided inside the metal mesh belt (31), and a higher side of the guide plate (34) is fixedly connected to a side of the air intake box (3) close to the activated carbon adsorber (2), and ultrasonic transducers (37) are installed on both sides inside the air intake box (3).

4. The device for treating radioactive gas before discharge according to claim 1, characterized in that: A water storage tank (36) is fixed to one end of the water supply pipe (35) away from the air intake box (3), a drainage pipe (362) is fixed to the top of the water storage tank (36), and a water inlet pipe (361) is fixed to the top of the drainage pipe (362).

5. The device for treating radioactive gas before discharge according to claim 4, characterized in that: A guide plate (365) is fixed inside the water storage tank (36), a floating ball (363) is arranged below the guide plate (365), a connecting rod is fixed to the top of the floating ball (363), a sealing ball (364) is fixed to the top of the connecting rod, the outer diameter of the sealing ball (364) matches the inner diameter of the drainage pipe (362), and the connecting rod of the floating ball (363) passes through the inside of the guide plate (365).

6. The device for treating radioactive gas before discharge according to claim 5, characterized in that: The outer diameter of the floating ball (363) is greater than the outer diameter of the blocking ball (364).

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