Air purification device for emergency treatment of radioactive gas in nuclear power station

Abstract

The invention relates to the technical field of air purification devices in the nuclear field, and discloses an air purification device for emergency treatment of radioactive gas in a nuclear power plant, the air purification device comprises a base, a backflushing mechanism is arranged above the base, a bombardment mechanism is arranged above the base, the backflushing mechanism comprises a tower body, and the bottom surface of the tower body is fixedly connected with the upper surface of the base; an activated carbon bed layer is clamped in the tower body, a treatment box is fixedly mounted on the upper surface of the base, the end, close to the tower body, of the treatment box penetrates into the tower body, a filter screen is fixedly mounted on the inner wall of the treatment box, and an electrostatic dust collector is fixedly mounted on the inner wall of the treatment box. According to the air purification device for emergency treatment of the radioactive gas in the nuclear power station, the backflushing mechanism is arranged, nitrogen in the storage box is sprayed to the activated carbon bed layer through the air pump after passing through the conveying pipe and the spray head, and therefore cakes on the activated carbon bed layer are blown off through airflow; the problem that the purification efficiency of radioactive gas is reduced because a large number of cakes adhere to the activated carbon bed layer is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of nuclear air purification device technology, in particular to a nuclear power plant emergency treatment of radioactive gas air purification device. BACKGROUND

[0002] In the gas generated in the nuclear power plant, often contains a large number of radioactive gas, when the nuclear power plant inside the accident, in order to filter the overpressure gas in the containment after the purification controllable discharge, workers often use nuclear power plant emergency treatment of radioactive gas air purification device to radioactive gas treatment.

[0003] The existing nuclear power plant emergency treatment of radioactive gas air purification device in use, due to the moisture in the gas, oil mist or organic steam and other substances easily lead to bed agglomeration, and the air purification device most do not have the function of cleaning the agglomeration, make the bed resistance increases, and thus reduces the efficiency of the treatment of radioactive gas. SUMMARY

[0004] The purpose of the present application is to provide a kind of nuclear power plant emergency treatment of radioactive gas air purification device, to solve the problems presented in the above background.

[0005] In order to solve the above technical problems, the present application provides the following technical scheme: a kind of nuclear power plant emergency treatment of radioactive gas air purification device, including base, the top of the base is provided with backflush mechanism, the top of the base is provided with bombardment mechanism;

[0006] The backflush mechanism includes tower body, the bottom surface of the tower body is fixedly connected with the upper surface of the base, the inside of the tower body is clamped with activated carbon bed, the upper surface of the base is fixedly installed with treatment box, the end of the treatment box near the tower body is penetrated to the inside of the tower body, the inner wall of the treatment box is fixedly installed with filter screen, the inner wall of the treatment box is fixedly installed with electrostatic precipitator.

[0007] Preferably, the backflushing mechanism further comprises a mounting frame, a plurality of rotating shafts are rotatably connected inside the mounting frame, a chain wheel is fixedly installed at the top end of each rotating shaft, the outer surfaces of the two sets of chain wheels are jointly sleeved with a chain, the upper surface of one chain wheel is fixedly installed with a first conical wheel, a rotating motor is fixedly installed on the outer surface of the tower body, a rotating shaft is fixedly installed at the output end of the rotating motor, one end of the rotating shaft penetrates through the tower body and is fixedly installed with a second conical wheel, the outer surface of the first conical wheel is engaged with the outer surface of the second conical wheel, a rotating disc is fixedly installed at the bottom end of each rotating shaft, a plurality of concave frames are fixedly installed on the bottom surface of the mounting frame, an adjusting frame is movably hinged inside each concave frame, a connecting column is rotatably connected to the bottom surface of each rotating disc, the outer surface of each adjusting frame is slidably connected with the inner wall of the connecting column, an installation plate is fixedly installed on the outer surface of each adjusting frame, a spray head is fixedly installed on the inner wall of each installation plate, a storage box is fixedly installed on the right side surface of the tower body, an air pump is fixedly installed on the outer surface of the tower body, the air inlet end of the air pump penetrates into the inside of the storage box, the air outlet end of the air pump is fixedly communicated with a conveying pipe, and the conveying pipe penetrates into the inside of the spray head away from the air pump.

[0008] Preferably, the bombarding mechanism comprises a first connecting wheel, the inner wall of the first connecting wheel is fixedly connected with the outer surface of the rotating shaft, a fixing frame is fixedly installed on the outer surface of the tower body, a rotating rod is rotatably connected to the back surface of the fixing frame, a second connecting wheel is fixedly installed on the outer surface of the rotating rod, the outer surfaces of the first connecting wheel and the second connecting wheel are jointly sleeved with a belt, a rotating disc is fixedly installed at one end of the rotating rod, a fixing column is fixedly installed on the back surface of the rotating disc, a moving frame is arranged on the back surface of the rotating disc, the inner wall of the moving frame is slidably connected with the outer surface of the fixing column, a touch switch is fixedly installed on the back surface of the fixing frame, a gas storage tank and an air compressor are respectively fixedly installed on the left side surface of the tower body, the air outlet end of the air compressor penetrates into the inside of the gas storage tank, a connecting pipe is fixedly communicated with the upper surface of the gas storage tank, one end of the connecting pipe penetrates into the inside of the tower body, and an electromagnetic valve is fixedly installed on the outer surface of the connecting pipe.

[0009] Preferably, the inside of the base is provided with a plurality of expansion bolts, the bottom end of each expansion bolt penetrates below the base.

[0010] Preferably, the outer surface of the rotating shaft is rotatably connected with a bearing seat, one side surface of the bearing seat is fixedly connected with the inner wall of the tower body.

[0011] Preferably, the bottom surface of each chain wheel is fixedly installed with a fixed bearing, the bottom surface of the inner ring of each fixed bearing is fixedly connected with the upper surface of the mounting frame.

[0012] Preferably, the upper surface of the storage tank is fixedly communicated with an air inlet pipe, and the outer surface of the air inlet pipe is threadedly connected with a tank cover.

[0013] Preferably, the outer surface of the tower body and the outer surface of the processing box are both fixedly installed with lock blocks and lock racks, and each lock block is clamped in the inner part of a lock rack.

[0014] Preferably, the back surface of the fixing frame is fixedly installed with a limiting block, and the inner wall of the limiting block is slidingly connected with the outer surface of the moving frame.

[0015] Preferably, the outer surface of the gas tank is fixedly installed with a gas pressure gauge, and the outer surface of the gas tank is fixedly communicated with a safety valve.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] Firstly, the backflushing mechanism is arranged, nitrogen gas in the storage tank is sprayed on the activated carbon bed through the delivery pipe and the spray head by the gas pump, so that the caked block on the activated carbon bed is blown off by the gas flow, thereby avoiding the decrease of the purification efficiency of radioactive gas caused by the attachment of a large amount of caked block on the activated carbon bed.

[0018] Secondly, the bombardment mechanism is arranged, the electromagnetic valve is intermittently opened during the operation of the backflushing mechanism, the gas in the gas tank is bombarded on the activated carbon bed in the form of an air cannon, so that the activated carbon bed is vibrated, thereby assisting the backflushing mechanism to make the caked block fall off, further ensuring the cleaning effect of the caked block and further ensuring the good purification efficiency of radioactive gas. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a perspective structural schematic view of the tower body of the present application;

[0020] Figure 2 It is a perspective structural schematic view of the rear view of the tower body of the present application;

[0021] Figure 3 It is a perspective structural schematic view of the tower body of the present application;

[0022] Figure 4 It is a perspective structural schematic view of the mounting frame of the present application;

[0023] Figure 5 It is a perspective structural schematic view of the rotating shaft of the present application;

[0024] Figure 6 It is a perspective structural schematic view of the mounting frame of the present application;

[0025] Figure 7 It is a perspective structural schematic view of the rear view of the rotating disc of the present application.

[0026] Wherein: 1, base; 2, backflush mechanism; 201, tower body; 202, activated carbon bed; 203, processing box; 204, filter screen; 205, electrostatic precipitator; 206, mounting frame; 207, rotating shaft; 208, chain wheel; 209, first conical wheel; 210, rotating motor; 211, rotating shaft; 212, second conical wheel; 213, rotating disc; 214, concave frame; 215, adjusting frame; 216, connecting column; 217, mounting plate; 218, spray head; 219, storage tank; 220, air pump; 221, conveying pipe; 222, chain; 3, bombardment mechanism; 301, first connecting wheel; 302, fixed frame; 303, rotating rod; 304, second connecting wheel; 305, belt; 306, rotating disc; 307, fixed column; 308, moving frame; 309, touch switch; 310, air storage tank; 311, connecting pipe; 312, electromagnetic valve; 313, air compressor; 4, expansion bolt; 5, bearing seat; 6, fixed bearing; 7, air inlet pipe; 8, box cover; 9, lock block; 10, lock frame; 11, limiting block; 12, air pressure gauge; 13, safety valve. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0028] Embodiment one

[0029] Reference Figures 1-6 An air purification device for emergency treatment of radioactive gas in a nuclear power plant, comprising a base 1, a backflush mechanism 2 arranged above the base 1, and a bombardment mechanism 3 arranged above the base 1.

[0030] The backflush mechanism 2 comprises a tower body 201, the bottom surface of the tower body 201 is fixedly connected to the upper surface of the base 1, an activated carbon bed 202 is clamped in the tower body 201, a processing box 203 is fixedly installed on the upper surface of the base 1, one end of the processing box 203 close to the tower body 201 penetrates into the inside of the tower body 201, a filter screen 204 is fixedly installed on the inner wall of the processing box 203, an electrostatic precipitator 205 is fixedly installed on the inner wall of the processing box 203, the filter screen 204 is used to filter out large-particle impurities in the radioactive gas, the electrostatic precipitator 205 is used to separate small-particle impurities in the radioactive gas, and the activated carbon bed 202 soaked in silver nitrate is used to adsorb radioactive iodine, so that the purification treatment of the radioactive gas is realized.

[0031] The backflushing mechanism 2 further comprises a mounting frame 206, a plurality of rotating shafts 207 are rotatably connected inside the mounting frame 206, the top end of each rotating shaft 207 is fixedly installed with a chain wheel 208, the outer surfaces of the two groups of chain wheels 208 are jointly sleeved with a chain 222, the upper surface of one of the chain wheels 208 is fixedly installed with a first bevel gear 209, the outer surface of the first bevel gear 209 is engaged with the outer surface of a second bevel gear 212, the outer surface of the second bevel gear 212 is fixedly installed on a rotating shaft 211, the bottom end of each rotating shaft 207 is fixedly installed with a rotating disc 213, the rotating disc 213 is engaged with the chain 222, so that the rotating motor 210 can drive the rotating disc 213 to rotate, the bottom surface of the mounting frame 206 is fixedly installed with a plurality of concave frames 214, the inside of each concave frame 214 is movably hinged with an adjusting frame 215, the bottom surface of each rotating disc 213 is rotatably connected with a connecting column 216, the outer surface of each adjusting frame 215 is slidably connected with the inner wall of the connecting column 216, the outer surface of each adjusting frame 215 is fixedly installed with a mounting plate 217, the inner wall of each mounting plate 217 is fixedly installed with a spray head 218, the right side of the tower body 201 is fixedly installed with a storage tank 219, the outer surface of the tower body 201 is fixedly installed with an air pump 220, the air inlet end of the air pump 220 penetrates into the inside of the storage tank 219, the air outlet end of the air pump 220 is fixedly communicated with a conveying pipe 221, one end of the conveying pipe 221 away from the air pump 220 penetrates into the inside of the spray head 218, the adjusting frame 215 is driven by the rotating disc 213 to reciprocate in the concave frame 214, so that different positions of the activated carbon bed 202 are cleaned, and the comprehensiveness of the cleaning is ensured.

[0032] The inside of the base 1 is provided with a plurality of expansion bolts 4, the bottom end of each expansion bolt 4 penetrates to the lower side of the base 1, the expansion bolt 4 is installed, so that the base 1 is fixed on the ground, thereby avoiding the phenomenon that the base 1 moves by itself.

[0033] The outer surface of the rotating shaft 211 is rotatably connected with a bearing seat 5, the side surface of the bearing seat 5 is fixedly connected with the inner wall of the tower body 201, the bearing seat 5 is installed, which plays a role in stabilizing the rotating shaft 211, thereby avoiding the phenomenon that the rotating shaft 211 shakes when rotating.

[0034] The bottom surface of each chain wheel 208 is fixedly installed with a fixed bearing 6, the bottom surface of the inner ring of each fixed bearing 6 is fixedly connected with the upper surface of the mounting frame 206, the fixed bearing 6 is installed, which plays a role in stabilizing the chain wheel 208, thereby avoiding the phenomenon that the chain wheel 208 shakes when rotating, and further ensuring the stability of the rotation of the chain wheel 208.

[0035] The upper surface of the storage tank 219 is fixedly communicated with an air inlet pipe 7, the outer surface of the air inlet pipe 7 is threadedly connected with a tank cover 8, the installation of the air inlet pipe 7 and the tank cover 8 facilitates workers to add nitrogen into the inside of the storage tank 219, thereby facilitating the cleaning of the agglomerates.

[0036] The outer surface of the tower body 201 and the outer surface of the treatment tank 203 are both fixedly installed with a lock block 9 and a lock rack 10, each lock block 9 is clamped in the inside of the lock rack 10, the installation of the lock block 9 and the lock rack 10 avoids the phenomenon that the tower body 201 and the treatment tank 203 are opened by themselves, thereby guaranteeing the good sealing performance of the device.

[0037] The specific implementation of the embodiment is that: in use, workers input radioactive gas into the inside of the treatment tank 203, so that the radioactive gas is discharged to the outside after being treated by the filter screen 204, the electrostatic precipitator 205 and the active carbon bed layer 202, thereby realizing the purifying effect of the radioactive gas, after the gas purification treatment, workers open the rotating motor 210 and the air pump 220 through an external remote control device, utilize the power provided by the rotating motor 210 to drive the rotating shaft 211 to rotate, so that the rotating shaft 211 drives the second conical wheel 212 to rotate, so that the second conical wheel 212 drives the chain wheel 208 connected therewith to rotate in cooperation with the first conical wheel 209, so that the chain wheel 208 drives the remaining chain wheels 208 to rotate in cooperation with the chain 222, so that the chain wheel 208 drives the rotating shaft 207 and the rotating disc 213 to rotate, thereby making the rotating disc 213 drive the connecting column 216 to rotate, and further making the connecting column 216 drive the adjusting rack 215 and the mounting plate 217 to reciprocating swing, so that the mounting plate 217 drives the spray head 218 to reciprocating swing, at the same time, utilize the power provided by the air pump 220 to spray the nitrogen in the storage tank 219 to the active carbon bed layer 202 through the conveying pipe 221 and the spray head 218, thereby making the agglomerates fall off under the action of the reverse wind force, avoiding that a large amount of agglomerates are attached to the active carbon bed layer 202, thereby causing the purification efficiency of the radioactive gas to decrease.

[0038] Embodiment two

[0039] Please refer to Figure 1 、 Figure 2 、 Figure 4 and Figure 7The utility model provides an air purification device for emergency treatment of radioactive gas of nuclear power plant, bombard mechanism 3 includes first connecting wheel 301, and the inner wall of first connecting wheel 301 is fixedly connected with the outer surface of rotating shaft 211, and the outer surface of tower body 201 is fixedly installed with fixed frame 302, and the back of fixed frame 302 is rotatably connected with rotating rod 303, and the outer surface of rotating rod 303 is fixedly installed with second connecting wheel 304, and the outer surface of first connecting wheel 301 is collectively sleeved with the outer surface of second connecting wheel 304 with belt 305, and one end of rotating rod 303 is fixedly installed with rotating disc 306, and the back of rotating disc 306 is fixedly installed with fixed column 307, and the back of rotating disc 306 is provided with moving frame 308, and the inner wall of moving frame 308 is slidably connected with the outer surface of fixed column 307, and the back of fixed frame 302 is fixedly installed with touch switch 309, and the left side of tower body 201 is fixedly installed with gas holder 310 and air compressor 313 respectively, and the air outlet end of air compressor 313 penetrates to the inside of gas holder 310, and the upper surface of gas holder 310 is fixedly connected with connecting pipe 311, and one end of connecting pipe 311 penetrates to the inside of tower body 201, and the outer surface of connecting pipe 311 is fixedly installed with electromagnetic valve 312, and touch switch 309 is electrically connected with electromagnetic valve 312, through being provided with bombard mechanism 3, make the recoil mechanism 2 in the process of operation, through the intermittent opening electromagnetic valve 312 constantly, make the gas in the inside of gas holder 310 with the form of air cannon bombard on activated carbon bed 202, so that activated carbon bed 202 produces vibration, and then auxiliary recoil mechanism 2 makes the lump drop, further guarantee the effect of lump cleaning, further guarantee the good purification efficiency of radioactive gas.

[0040] The back of fixed frame 302 is fixedly installed with limiting block 11, and the inner wall of limiting block 11 is slidably connected with the outer surface of moving frame 308, and the installation of limiting block 11 plays the role of limiting the moving track of moving frame 308, so as to avoid the phenomenon that moving frame 308 deviates from the moving track when moving, and then guarantee the stability of moving frame 308.

[0041] The outer surface of gas holder 310 is fixedly installed with air pressure gauge 12, and the outer surface of gas holder 310 is fixedly connected with safety valve 13, the pressure in the inside of gas holder 310 is detected by air pressure gauge 12, so that when the pressure in the inside of gas holder 310 is too large, the pressure in the inside of gas holder 310 is released through safety valve 13, and then the stability of the pressure in the inside of gas holder 310 is guaranteed.

[0042] The specific implementation of the embodiment is that: in the process of rotating the rotating shaft 211, the air compressor 313 is used to input the external gas into the inside of the gas storage tank 310 after compression, then the rotating shaft 211 drives the first connecting wheel 301 to rotate, so that the first connecting wheel 301 drives the second connecting wheel 304 to rotate through the cooperation of the belt 305, so that the second connecting wheel 304 drives the rotating rod 303 and the rotating disc 306 to rotate, so that the rotating disc 306 drives the fixed column 307 to rotate, so that the fixed column 307 drives the moving frame 308 to reciprocate under the limitation of the limiting block 11, so as to trigger the touch switch 309 intermittently, when the touch switch 309 is triggered, the electromagnetic valve 312 is opened, so that the compressed gas in the inside of the gas storage tank 310 is sprayed on the activated carbon bed layer 202 through the connecting pipe 311, so that the activated carbon bed layer 202 is vibrated, and then the backflushing mechanism 2 is assisted to make the lump fall off, so as to ensure the good purification efficiency of the radioactive gas.

[0043] The working principle of the present application is that: in use, the worker inputs the radioactive gas into the inside of the treatment box 203, so that the radioactive gas is discharged to the outside after being treated by the filter screen 204, the electrostatic precipitator 205 and the activated carbon bed layer 202, so as to realize the effect of purifying the radioactive gas, after the gas purification treatment, the worker opens the rotating motor 210 and the air pump 220 through the external remote control device, drives the rotating shaft 211 to rotate by the power provided by the rotating motor 210, so that the rotating shaft 211 drives the second conical wheel 212 to rotate, so that the second conical wheel 212 drives the chain wheel 208 connected thereto to rotate through the cooperation of the first conical wheel 209, so that the chain wheel 208 drives the remaining chain wheels 208 to rotate through the cooperation of the chain 222, so that the chain wheel 208 drives the rotating shaft 207 and the rotating disc 213 to rotate, so that the rotating disc 213 drives the connecting column 216 to rotate, and then the connecting column 216 drives the adjusting frame 215 and the mounting plate 217 to reciprocate, so that the mounting plate 217 drives the spray head 218 to reciprocate, and at the same time, the nitrogen in the storage tank 219 is sprayed on the activated carbon bed layer 202 through the delivery pipe 221 and the spray head 218 by the power provided by the air pump 220, so that the lump falls off under the action of the reverse wind force, so as to avoid that a large amount of lump is attached to the activated carbon bed layer 202, causing the purification efficiency of the radioactive gas to decrease;

[0044] In the rotating process of the rotating shaft 211, the air compressor 313 is used for inputting the external gas into the inside of the gas storage tank 310 through compression, then the rotating shaft 211 drives the first connecting wheel 301 to rotate, so that the first connecting wheel 301 drives the second connecting wheel 304 to rotate through the cooperation with the belt 305, so that the second connecting wheel 304 drives the rotating rod 303 and the rotating disc 306 to rotate, so that the rotating disc 306 drives the fixed column 307 to rotate, so that the fixed column 307 drives the moving frame 308 to reciprocate under the limitation of the limiting block 11, so as to trigger the touch switch 309 intermittently, when the touch switch 309 is triggered, the electromagnetic valve 312 is opened, so that the compressed gas in the inside of the gas storage tank 310 hits on the activated carbon bed 202 through the connecting pipe 311, so that the activated carbon bed 202 vibrates, and then the backflushing mechanism 2 is assisted to make the lump fall off, so as to ensure the good purification efficiency of the radioactive gas.

[0045] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0046] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and does not limit the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement and the like within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An air purification device for emergency treatment of radioactive gases in a nuclear power plant, comprising a base (1), characterised in that: The upper part of the base (1) is provided with a backflush mechanism (2), and the upper part of the base (1) is provided with a bombardment mechanism (3). The backflush mechanism (2) comprises a tower body (201), the bottom surface of the tower body (201) is fixedly connected with the upper surface of the base (1), the inside of the tower body (201) is clamped with an activated carbon bed layer (202), the upper surface of the base (1) is fixedly installed with a treatment box (203), one end of the treatment box (203) close to the tower body (201) penetrates to the inside of the tower body (201), the inner wall of the treatment box (203) is fixedly installed with a filter screen (204), and the inner wall of the treatment box (203) is fixedly installed with an electrostatic precipitator (205).

2. An air cleaning device for emergency treatment of radioactive gases in a nuclear power plant according to claim 1, characterized in that: The backflush mechanism (2) further comprises a mounting frame (206), a plurality of rotating shafts (207) are rotatably connected in the mounting frame (206), a chain wheel (208) is fixedly installed at the top end of each rotating shaft (207), the outer surfaces of two groups of chain wheels (208) are commonly sleeved with a chain (222), the upper surface of one chain wheel (208) is fixedly installed with a first conical wheel (209), the outer surface of the first conical wheel (209) is engaged with the outer surface of a second conical wheel (212), the outer surface of the second conical wheel (212) is fixedly installed on the outer surface of the tower body (201), a rotating motor (210) is fixedly installed on the outer surface of the tower body (201), the output end of the rotating motor (210) is fixedly installed with a rotating shaft (211), one end of the rotating shaft (211) penetrates through the tower body (201) and is fixedly installed with the second conical wheel (212), the bottom end of each rotating shaft (207) is fixedly installed with a rotating disc (213), the bottom surface of the mounting frame (206) is fixedly installed with a plurality of concave frames (214), each concave frame (214) is movably hinged with an adjusting frame (215), the bottom surface of each rotating disc (213) is rotatably connected with a connecting column (216), the outer surface of each adjusting frame (215) is slidably connected with the inner wall of the connecting column (216), the outer surface of each adjusting frame (215) is fixedly installed with a mounting plate (217), the inner wall of each mounting plate (217) is fixedly installed with a spray head (218), the right side surface of the tower body (201) is fixedly installed with a storage box (219), the outer surface of the tower body (201) is fixedly installed with an air pump (220), the air inlet end of the air pump (220) penetrates to the inside of the storage box (219), the air outlet end of the air pump (220) is fixedly communicated with a conveying pipe (221), and one end of the conveying pipe (221) away from the air pump (220) penetrates to the inside of the spray head (218).

3. An air cleaning device for emergency treatment of radioactive gases in a nuclear power plant according to claim 2, characterized in that: The bombarding mechanism (3) comprises a first connecting wheel (301), the inner wall of the first connecting wheel (301) is fixedly connected with the outer surface of the rotating shaft (211), the outer surface of the tower body (201) is fixedly installed with a fixing frame (302), the back surface of the fixing frame (302) is rotatably connected with a rotating rod (303), the outer surface of the rotating rod (303) is fixedly installed with a second connecting wheel (304), the outer surface of the first connecting wheel (301) and the outer surface of the second connecting wheel (304) are commonly sleeved with a belt (305), one end of the rotating rod (303) is fixedly installed with a rotating disc (306), the back surface of the rotating disc (306) is fixedly installed with a fixed column (307), the back surface of the rotating disc (306) is provided with a moving frame (308), the inner wall of the moving frame (308) is slidably connected with the outer surface of the fixed column (307), the back surface of the fixing frame (302) is fixedly installed with a touch switch (309), the left side surface of the tower body (201) is fixedly installed with an air storage tank (310) and an air compressor (313) respectively, the air outlet end of the air compressor (313) penetrates into the inside of the air storage tank (310), the upper surface of the air storage tank (310) is fixedly communicated with a connecting pipe (311), one end of the connecting pipe (311) penetrates into the inside of the tower body (201), the outer surface of the connecting pipe (311) is fixedly installed with a solenoid valve (312).

4. The air cleaning device for emergency treatment of radioactive gases in a nuclear power plant according to claim 1, characterized in that: The inside of the base (1) is provided with a plurality of expansion bolts (4), the bottom end of each expansion bolt (4) penetrates to the lower side of the base (1).

5. An air cleaning device for emergency treatment of radioactive gases in a nuclear power plant according to claim 2, characterized in that: The outer surface of the rotating shaft (211) is rotatably connected with a bearing seat (5), one side surface of the bearing seat (5) is fixedly connected with the inner wall of the tower body (201).

6. An air cleaning device for emergency treatment of radioactive gases in a nuclear power plant according to claim 2, characterized in that: The bottom surface of each chain wheel (208) is fixedly installed with a fixed bearing (6), the bottom surface of the inner ring of each fixed bearing (6) is fixedly connected with the upper surface of the mounting frame (206).

7. A nuclear power plant emergency air decontamination device for treating radioactive gases according to claim 2, characterized in that: The upper surface of the storage tank (219) is fixedly communicated with an air inlet pipe (7), the outer surface of the air inlet pipe (7) is threadedly connected with a tank cover (8).

8. The air cleaning device for emergency treatment of radioactive gases in a nuclear power plant according to claim 1, characterized in that: The outer surface of the tower body (201) and the outer surface of the treatment box (203) are fixedly installed with a lock block (9) and a lock frame (10), each lock block (9) is clamped in the inside of the lock frame (10).

9. The air cleaning device for emergency treatment of radioactive gases in a nuclear power plant according to claim 3, characterized in that: The back surface of the fixing frame (302) is fixedly installed with a limiting block (11), the inner wall of the limiting block (11) is slidably connected with the outer surface of the moving frame (308).

10. The air cleaning device for emergency treatment of radioactive gases in a nuclear power plant according to claim 3, characterized in that: The outer surface of the air storage tank (310) is fixedly installed with an air pressure gauge (12), the outer surface of the air storage tank (310) is fixedly communicated with a safety valve (13).

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