CN113813733A - Radioactive gas filtering device - Google Patents
Radioactive gas filtering device Download PDFInfo
- Publication number
- CN113813733A CN113813733A CN202111163223.6A CN202111163223A CN113813733A CN 113813733 A CN113813733 A CN 113813733A CN 202111163223 A CN202111163223 A CN 202111163223A CN 113813733 A CN113813733 A CN 113813733A
- Authority
- CN
- China
- Prior art keywords
- air inlet
- shell
- filtering device
- filter
- radioactive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000002285 radioactive effect Effects 0.000 title claims abstract description 34
- 238000001914 filtration Methods 0.000 title claims abstract description 26
- 238000001035 drying Methods 0.000 claims abstract description 35
- 238000005507 spraying Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 49
- 239000007921 spray Substances 0.000 abstract description 17
- 239000002901 radioactive waste Substances 0.000 abstract description 14
- 239000002245 particle Substances 0.000 abstract description 8
- 239000000443 aerosol Substances 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 abstract description 6
- 239000002912 waste gas Substances 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003595 mist Substances 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 239000008187 granular material Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/02—Treating gases
Abstract
The invention relates to the field of radioactive gas treatment, in particular to a radioactive gas filtering device which sequentially comprises a primary filter, a centrifugal spraying filter, a drying device and an induced draft fan from the flowing direction of gas, wherein the radioactive waste gas filters impurities such as aerosol with larger particles, liquid and the like in the primary filter, the centrifugal spraying filter sprays and centrifuges the radioactive waste gas to further separate substances with smaller particles in the radioactive waste gas, and the drying device dries the waste gas and finally discharges the waste gas from the induced draft fan. The invention purifies through multi-stage filtration and centrifugal spraying, and reduces the harm of radioactive gas emission.
Description
Technical Field
The invention relates to the field of radioactive gas treatment, in particular to a radioactive gas filtering device.
Background
Radioactive exhaust gases are mainly produced from exhaust gases and equipment leaks in reflectively operated processes and, in addition, from exhaust gases in radioactive laboratories and factories. The radioactive waste gas may contain inert gases, aerosols, iodine, and other non-radioactive harmful gases.
Currently, there are two methods for treating radioactive gas: one is a direct discharge type, discharging through tall pipes; the other is sewer discharge, i.e. the radioactive gas is led into the sewer through a pipeline, and the two discharge modes cannot solve the harm of the radioactive gas.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a radioactive gas filtering device.
In order to achieve the purpose, the invention provides the following technical scheme:
a radioactive gas filtering device, comprising:
the primary filter is internally provided with a paper filter element;
the centrifugal spraying filter is connected with the primary filter and is provided with a rotating shell, an air inlet pipe is inserted into the rotating shell, a spraying pipe is further arranged in the air inlet pipe in a penetrating mode, and the top end of the spraying pipe penetrates through the air inlet pipe and is arranged in the rotating shell;
the drying device is connected with the centrifugal spraying filter and is used for drying the gas; and
and the induced draft fan is connected with the drying device and used for leading the dried gas out.
Preferably, the primary filter further comprises a cylindrical filter housing, and the paper filter element is fixed in the filter housing; the filter shell comprises a first air inlet and a first air outlet, the first air inlet is communicated with the space between the filter shell and the paper filter element, and the first air outlet is communicated with the paper filter element.
Preferably, the air inlet pipe penetrates through the middle of the rotating shell, a plurality of air inlet holes are formed in the air inlet pipe, and the plurality of air inlet holes are located in the rotating shell.
Preferably, a spray head is further arranged in the rotating shell, the spray head is arranged above the air inlet pipe, and the bottom end of the spray head is connected with the top end of the spray pipe.
Preferably, the rotating shell is sleeved with a driven gear, and the axial lead of the driven gear is the same as that of the air inlet pipe; one side of the rotating shell is also provided with a motor, a driving gear is connected to the motor, and the driving gear is meshed with a driven gear.
Preferably, a bearing is arranged between the rotating shell and the air inlet pipe.
Preferably, the middle part of the top end of the rotating shell is provided with a second air outlet.
Preferably, drying device includes the stoving section of thick bamboo of vertical setting, the bottom of stoving section of thick bamboo has the communicating third air inlet with the second gas outlet, the top of stoving section of thick bamboo has the third gas outlet, the third gas outlet links to each other with the draught fan.
Preferably, a spiral channel is arranged in the drying cylinder.
Preferably, the bottom of the drying cylinder is also provided with a drying pipe communicated with the spiral channel for feeding drying air flow.
Compared with the prior art, the invention has the advantages that:
(1) the invention filters radioactive gas layer by layer in a multi-stage filtering mode, thereby reducing pollution caused by radioactive gas emission;
(2) in the primary filter, radioactive gas is filtered by a paper filter element, impurities such as aerosol with larger particles in the radioactive gas are blocked on the outer wall of the paper filter element, and the rest gas is discharged from the interior of the paper filter element;
(3) radioactive waste gas sprays water mist through the spray pipe in the centrifugal spray filter, makes the less impurity of granule melt into in the water mist, and through the centrifugal force that rotates the shell pivoted for water mist is stained with on rotating the inner wall of shell, thereby further reduces harmful substance in the radioactive waste gas.
Drawings
FIG. 1 is a schematic view of a radioactive gas filtering apparatus according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a primary filter of an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a centrifugal spray filter according to an embodiment of the present invention;
fig. 4 is a sectional view of a drying apparatus according to an embodiment of the present invention.
In the figure: 1. a primary filter; 2. a centrifugal spray filter; 3. a drying device; 4. an induced draft fan; 11. a filter housing; 111. a first air inlet; 112. a first air outlet; 12. a paper filter element; 21. rotating the housing; 211. a second air outlet; 212. a driven gear; 22. an air inlet pipe; 221. an air inlet; 23. a shower pipe; 24. a spray head; 25. a motor; 251. a driving gear; 26. a bearing; 31. a drying drum; 32. a spiral channel; 33. a third air inlet; 34. a third air outlet; 35. and a drying pipe.
Detailed Description
The following non-limiting detailed description of the present invention is provided in connection with the preferred embodiments and accompanying drawings. In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The invention discloses a radioactive gas filtering device, which comprises a primary filter 1, a centrifugal spraying filter 2, a drying device 3 and an induced draft fan 4 in sequence from the flowing direction of gas, wherein the radioactive waste gas filters impurities such as aerosol with larger particles and liquid in the primary filter 1, the centrifugal spraying filter 2 sprays and centrifuges the radioactive waste gas to further separate substances with smaller particles in the radioactive waste gas, and the drying device 3 dries the waste gas and finally discharges the waste gas from the induced draft fan 4.
Referring to fig. 1 and 2, the primary filter 1 includes a hollow filter housing 11 having a cylindrical shape, and a paper cartridge 12 disposed inside the filter housing 11, the primary filter 1 being horizontally disposed, and radioactive gas flowing horizontally in the primary filter 1. Wherein, the paper filter element 12 is buckled in the middle of the filter shell 11, and of course, the fixing mode can be welding, riveting or bonding. The paper filter element 12 is cylindrical, the two ends are provided with end covers, the middle part is formed by bending the paper filter, the inside of the paper filter element is hollow, waste gas is filtered by the paper, impurities such as aerosol with large particles are blocked on the outer wall of the paper filter, and other gases enter the middle part of the paper filter and are finally discharged outwards through the opening of the end covers.
Two ends of the filtering shell 11 are respectively provided with a first air inlet 111 and a first air outlet 112, wherein the first air inlet 111 is communicated with a space between the paper filter element 12 and the filtering shell 11, the first air outlet 112 is communicated with an opening on an end cover of the paper filter element 12, after radioactive waste gas enters the filtering shell 11, the radioactive waste gas is firstly positioned in the space between the filtering shell 11 and the paper filter element 12, then enters the paper filter element 12 through paper filtration, and finally is discharged outwards from the first air outlet 112 through the opening of the end cover.
Referring to fig. 1 and 3, the centrifugal spray filter 2 includes a hollow rotary housing 21 and a vertically arranged air inlet pipe 22, the top end of the air inlet pipe 22 is inserted into the rotary housing 21, the bottom end of the air inlet pipe 22 is connected with a first air outlet 112 on the filter housing 11 through a pipeline, and the radioactive waste gas passing through the primary filter 1 is sent into the rotary housing 21 through the air inlet pipe 22 for centrifugation and spraying. Specifically, the rotating shell 21 is a hollow cylinder, the top middle part of the rotating shell 21 is provided with a second air outlet 211, the side wall of the air inlet pipe 22 is provided with a plurality of air inlet holes 221, the plurality of air inlet holes 221 are uniformly distributed on the air inlet pipe 22, and the plurality of air inlet holes 221 are all located inside the rotating shell 21. The middle of the bottom end of the rotating shell 21 is also provided with a bearing 26, and the air inlet pipe 22 is arranged in the bearing in a penetrating way, so that the rotating shell 21 can rotate conveniently, and the rotating resistance is reduced.
Referring to fig. 1 and 3, the centrifugal spray filter 2 further includes a motor 25, the motor 25 is disposed at the bottom end of the rotating housing 21, a driving gear 251 is disposed on a rotating shaft of the motor 25, a driven gear 212 is further sleeved at the bottom of the rotating housing 21, an axial line of the driven gear 212 is consistent with a central line of the air inlet pipe 22, and the driving gear 251 and the driven gear 212 are engaged with each other. The gear is driven by the motor 25 to drive the rotating shell 21 to rotate, the radioactive waste gas is centrifuged in the rotating shell 21, and the aerosol with smaller particles is separated on the inner wall of the rotating shell 21, so that the radioactive waste gas is filtered.
In order to further increase the filtering effect of the radioactive exhaust gases, smaller particles are also removed by spraying in the rotating housing 21. Specifically, a shower pipe 23 is further inserted into the intake pipe 22, a top end of the shower pipe 23 penetrates a top end of the intake pipe 22 and is connected to a shower head 24, and the shower head 24 is fitted to a top end of the shower pipe 23. The bottom end of the spray pipe 23 passes through the air inlet pipe 22 and is connected with an external water pipe. Outside water is carried through shower 23 and is rotated in the shell 21 to outwards spray through shower nozzle 24, and like this, on the one hand, motor 25 drive rotates shell 21 and rotates, makes inside gas receive the effect of centrifugal force, and on the other hand, inlet port 221 is down, and shower nozzle 24 is last, and waste gas is from the ascending motion of the water smoke that sprays down, and water smoke glues the less impurity of granule, and dissolves the harmful substance in the radioactive gas, through the effect of centrifugal force, with water smoke separation to rotating shell 21's lateral wall, thereby accomplish further purification.
Referring to fig. 1 and 4, the drying apparatus 3 includes a vertically arranged drum 31, and a spiral blade is provided in the drum 31 to form a spiral passage 32 so that air spirally moves in the drum 31. Specifically, the bottom end of the drying cylinder 31 is provided with a third air inlet 33, the top end of the drying cylinder 31 is provided with a third air outlet 34, wherein the third air inlet 33 is connected with the second air outlet 211 through a pipeline, the third air outlet 34 is connected with the induced draft fan 4, the air which is centrifuged and sprayed moves upwards from the third air inlet 33, and after being dried, the air is discharged from the induced draft fan 4.
Further, a drying pipe 35 is arranged at the bottom of the drying cylinder 31, the top end of the drying pipe 35 is communicated with the spiral channel 32, and the bottom end of the drying pipe 35 is connected with an external drying device and used for introducing dry gas.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A radioactive gas filtering device, characterized in that: the method comprises the following steps:
the primary filter (1) is internally provided with a paper filter element (12);
the centrifugal spraying filter (2) is connected with the primary filter (1) and is provided with a rotating shell (21), an air inlet pipe (22) is inserted into the rotating shell (21), a spraying pipe (23) penetrates through the air inlet pipe (22), and the top end of the spraying pipe (23) penetrates through the air inlet pipe (22) and is arranged in the rotating shell (21);
the drying device (3) is connected with the centrifugal spraying filter (2) and is used for drying gas; and
and the draught fan (4) is connected with the drying device (3) and is used for leading the dried gas out.
2. The radioactive gas filtering device according to claim 1, wherein: the primary filter (1) further comprises a cylindrical filter shell (11), and the paper filter element (12) is fixed in the filter shell (11); the filter shell (11) comprises a first air inlet (111) and a first air outlet (112), the first air inlet (111) is communicated with the space between the filter shell (11) and the paper filter element (12), and the first air outlet (112) is communicated with the paper filter element (12).
3. The radioactive gas filtering device according to claim 1, wherein: the air inlet pipe (22) penetrates through the middle of the rotary shell (21), a plurality of air inlet holes (221) are formed in the air inlet pipe (22), and the plurality of air inlet holes (221) are all located in the rotary shell (21).
4. The radioactive gas filtering device according to claim 3, wherein: still be equipped with shower nozzle (24) in rotating shell (21), shower nozzle (24) set up the top at intake pipe (22), the bottom of shower nozzle (24) is connected with the top of shower (23).
5. The radioactive gas filtering device according to claim 4, wherein: a driven gear (212) is sleeved on the rotating shell (21), and the axial lead of the driven gear (212) is the same as that of the air inlet pipe (22); one side of the rotating shell (21) is also provided with a motor (25), a driving gear (251) is connected to the motor (25), and the driving gear (251) is meshed with a driven gear (212).
6. The radioactive gas filtering device according to claim 1, wherein: and a bearing (26) is arranged between the rotating shell (21) and the air inlet pipe (22).
7. The radioactive gas filtering device according to claim 1, wherein: and a second air outlet (211) is formed in the middle of the top end of the rotating shell (21).
8. The radioactive gas filtering device according to claim 7, wherein: drying device (3) are including drying cylinder (31) of vertical setting, the bottom of drying cylinder (31) has third air inlet (33) that communicate with each other with second gas outlet (211), the top of drying cylinder (31) has third gas outlet (34), third gas outlet (34) link to each other with draught fan (4).
9. The radioactive gas filtering device according to claim 8, wherein: a spiral channel (32) is arranged in the drying cylinder (31).
10. The radioactive gas filtering device according to claim 9, wherein: and a drying pipe (35) communicated with the spiral channel (32) is also arranged at the bottom of the drying cylinder (31) and used for sending drying air flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111163223.6A CN113813733A (en) | 2021-09-30 | 2021-09-30 | Radioactive gas filtering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111163223.6A CN113813733A (en) | 2021-09-30 | 2021-09-30 | Radioactive gas filtering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113813733A true CN113813733A (en) | 2021-12-21 |
Family
ID=78916267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111163223.6A Pending CN113813733A (en) | 2021-09-30 | 2021-09-30 | Radioactive gas filtering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113813733A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114534410A (en) * | 2022-03-11 | 2022-05-27 | 重庆外宇科技有限公司 | Exhaust gas air pipe deodorization collecting and filtering system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107469584A (en) * | 2017-09-30 | 2017-12-15 | 浙江联盛生物科技有限公司 | A kind of gas-water separation equipment |
| CN107497223A (en) * | 2017-08-21 | 2017-12-22 | 中国核电工程有限公司 | A kind of air cleaning unit and purification method |
| CN108771931A (en) * | 2018-06-28 | 2018-11-09 | 雷明光 | A kind of centrifugal removal device of soot dust granule spray based on burning waste gas |
| CN111145930A (en) * | 2019-12-16 | 2020-05-12 | 中国辐射防护研究院 | Simple and effective radioactive waste disposal cylinder |
| CN212431695U (en) * | 2020-03-31 | 2021-01-29 | 东莞市唯美陶瓷工业园有限公司 | Tail gas white smoke eliminating device of ceramic spray drying tower |
| CN212757299U (en) * | 2020-07-20 | 2021-03-23 | 吴天成 | Boiler flue gas waste heat recovery of thermal power factory disappears white device |
-
2021
- 2021-09-30 CN CN202111163223.6A patent/CN113813733A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107497223A (en) * | 2017-08-21 | 2017-12-22 | 中国核电工程有限公司 | A kind of air cleaning unit and purification method |
| CN107469584A (en) * | 2017-09-30 | 2017-12-15 | 浙江联盛生物科技有限公司 | A kind of gas-water separation equipment |
| CN108771931A (en) * | 2018-06-28 | 2018-11-09 | 雷明光 | A kind of centrifugal removal device of soot dust granule spray based on burning waste gas |
| CN111145930A (en) * | 2019-12-16 | 2020-05-12 | 中国辐射防护研究院 | Simple and effective radioactive waste disposal cylinder |
| CN212431695U (en) * | 2020-03-31 | 2021-01-29 | 东莞市唯美陶瓷工业园有限公司 | Tail gas white smoke eliminating device of ceramic spray drying tower |
| CN212757299U (en) * | 2020-07-20 | 2021-03-23 | 吴天成 | Boiler flue gas waste heat recovery of thermal power factory disappears white device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114534410A (en) * | 2022-03-11 | 2022-05-27 | 重庆外宇科技有限公司 | Exhaust gas air pipe deodorization collecting and filtering system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105289173B (en) | Gas purifier | |
| JP2006205077A (en) | Spiral structure, separator for separating mixture from gas using it and heat exchanger | |
| CN205586690U (en) | Oil smoke rotary filtering ware | |
| JP2018505049A (en) | Centrifuge for purifying gas | |
| CN113813733A (en) | Radioactive gas filtering device | |
| KR20160139799A (en) | Air cleaner with humidification of wet type | |
| KR100721258B1 (en) | Impurities filtration device using centrifugal force and filter | |
| EP3130405A1 (en) | Centrifuge having moisture discharge structure and purifier system using same | |
| CN104566593B (en) | Range hood | |
| CN216092659U (en) | Washing tower with centrifugal separation function | |
| CN105999872A (en) | Oil mist collecting device | |
| CN211411580U (en) | VOC exhaust treatment system | |
| CN105999976A (en) | Flue gas depth dedusting defogging water-saving unit and device composed thereby | |
| US3067876A (en) | Centrifugal separator process and apparatus | |
| CN107261720A (en) | Industrial waste gas processing system | |
| CN208389693U (en) | A kind of oil fog processor accurate filter | |
| CN209828600U (en) | A multi-stage filtration exhaust device for pharmaceutical factory | |
| JPS62213819A (en) | Mist removal device | |
| CN100408145C (en) | Air washer | |
| CN207786178U (en) | Exhaust treatment system in a kind of sewage | |
| CN220537584U (en) | Multistage formula sewage dissolves gas device | |
| CN209423224U (en) | A kind of medium-sized cleaner of Chemical Manufacture gas collection | |
| CN110917736A (en) | Tube bundle type dust and mist remover | |
| CN204494549U (en) | A kind of smoke exhaust ventilator | |
| CN213965846U (en) | Burn and examine stove with flue gas processing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211221 |