CN221086696U - Waste gas collecting device for radioactive substances - Google Patents
Waste gas collecting device for radioactive substances Download PDFInfo
- Publication number
- CN221086696U CN221086696U CN202322963989.3U CN202322963989U CN221086696U CN 221086696 U CN221086696 U CN 221086696U CN 202322963989 U CN202322963989 U CN 202322963989U CN 221086696 U CN221086696 U CN 221086696U
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- CN
- China
- Prior art keywords
- air inlet
- negative pressure
- extension air
- glove box
- extension
- 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.)
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- 239000000941 radioactive substance Substances 0.000 title claims abstract description 10
- 239000002912 waste gas Substances 0.000 title abstract description 23
- 239000002585 base Substances 0.000 claims abstract description 26
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000002808 molecular sieve Substances 0.000 claims abstract description 17
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000003513 alkali Substances 0.000 claims abstract description 15
- 239000010425 asbestos Substances 0.000 claims abstract description 15
- 229910052895 riebeckite Inorganic materials 0.000 claims abstract description 15
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 36
- 238000007789 sealing Methods 0.000 claims description 23
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 20
- 239000001569 carbon dioxide Substances 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 14
- 230000000007 visual effect Effects 0.000 claims description 9
- 239000012857 radioactive material Substances 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 21
- 230000002285 radioactive effect Effects 0.000 abstract description 14
- 230000007547 defect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000000443 aerosol Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- YZCKVEUIGOORGS-NJFSPNSNSA-N Tritium Chemical compound [3H] YZCKVEUIGOORGS-NJFSPNSNSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010795 gaseous waste Substances 0.000 description 1
- 230000008821 health effect Effects 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
- 239000002901 radioactive waste Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 229910052722 tritium Inorganic materials 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model relates to the technical field of polluted gas treatment, in particular to an exhaust gas collection device for radioactive substances, which comprises a negative pressure glove box, wherein an exhaust pipe is arranged at the top of the negative pressure glove box, an air supply duct is fixedly connected to the right side of the negative pressure glove box, and a first filter base box and a second filter base box are arranged at one side of one end, far away from the negative pressure glove box, of the air supply duct. The utility model overcomes the defects of the prior art, the air in the exhaust pipe flows to form a negative pressure environment by starting the fan, the radioactive air in the negative pressure glove box is sucked by the exhaust pipe, and the air passes through the extension air inlet cylinder I, the extension air inlet cylinder II and the extension air inlet cylinder III in sequence, and the interiors of the extension air inlet cylinder I, the extension air inlet cylinder II and the extension air inlet cylinder III are respectively filled with the molecular sieve layer II, the alkali asbestos layer II and the activated carbon layer, so that the harmful HTO and 14C02 carried by the waste gas in the air can be treated, and the treated waste gas can be discharged.
Description
Technical Field
The utility model relates to the technical field of polluted gas treatment, in particular to a radioactive substance waste gas collecting device.
Background
Radioactive materials are those which naturally radiate energy outwards, emitting radiation, and for certain materials, such as the nuclear energy of certain materials, decay, emitting radiation which is invisible and imperceptible to the naked eye, which can only be detected by special instruments, this property is called radioactivity;
Radioactive substance waste gas refers to gaseous waste containing radioactive gases and aerosols and having a concentration of radioactivity exceeding the emission limits specified by the national relevant sector, these waste gases mainly originating from radioactive waste gases generated in the radioactive operation process by leaks in the exhaust and equipment or by ventilation of the radioactive laboratories and plants, possibly together with inert gases, aerosols, iodine, tritium and other non-radioactive harmful gases, for the treatment and emission of which it is necessary to comply with the relevant regulations and regulations ensuring that no environmental and human health effects are imposed;
At present, radioactive gas and aerosol generated when radioactive substances are operated in an open environment are discharged after the radioactive gas is treated, and the existing exhaust equipment cannot treat the radioactive gas in the gas, so that the radioactive gas is discharged along with the exhaust equipment.
Disclosure of utility model
In view of the shortcomings of the prior art, the utility model provides a radioactive substance waste gas collecting device, which overcomes the shortcomings of the prior art and solves the problems mentioned in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a radioactive substance's exhaust gas collection device, includes the negative pressure glove box, the exhaust pipe is installed to the top configuration of negative pressure glove box, negative pressure glove box right side fixedly connected with air supply duct, and air supply duct keeps away from negative pressure glove box one end one side configuration and installs filtration base case one and filtration base case two.
The air blower can suck out the gas containing radioactivity from the negative pressure glove box through the air exhaust pipe, external air can enter the negative pressure glove box through the air supply air duct, and the first filter base box and the second filter base box arranged at the end part of the air supply air duct can recycle water and carbon dioxide in the air flowing into the air supply air duct, so that the content of water and carbon dioxide in the gas entering the negative pressure glove box is reduced, and the back-end collecting pressure is reduced.
As a preferable technical scheme of the utility model, the front surface of the negative pressure glove box is provided with a visual window, the front surface of the negative pressure glove box below the visual window is provided with a pair of sealing connection covers, and the left side of the negative pressure glove box is provided with a sealing door.
The vacuum glove box can be closed after the sample is placed inside the vacuum glove box by opening the sealing door, the situation of the inside of the vacuum glove box can be intuitively known through the visual window, and the glove on the inner side of the sealing connection cover can be sleeved for sealing and opening the sample.
As a preferable technical scheme of the utility model, one end of the exhaust pipe, which is far away from the negative pressure glove box, is sequentially provided with an extension air inlet cylinder I, an extension air inlet cylinder II, an extension air inlet cylinder III and a fan, wherein the extension air inlet cylinder I, the extension air inlet cylinder II and the extension air inlet cylinder III have the same structure, and the extension air inlet cylinder I, the extension air inlet cylinder II and the extension air inlet cylinder III are detachably connected through threads.
The exhaust pipe can be used for pre-treating exhaust gas before the exhaust of the negative-pressure glove box through the first extension air inlet barrel, the second extension air inlet barrel and the third extension air inlet barrel, so that harmless exhaust gas emission is realized.
As a preferable technical scheme of the utility model, the extension air inlet cylinder I comprises a storage box fixedly arranged on the inner wall of the extension air inlet cylinder I and a vent hole penetrating through the surface of the storage box, and the interior of the extension air inlet cylinder I, the interior of the extension air inlet cylinder II and the interior of the extension air inlet cylinder III are respectively filled with a molecular sieve layer II, an alkali asbestos layer II and an activated carbon layer.
The molecular sieve layer II, the alkali asbestos layer II and the activated carbon layer can be used for removing water and carbon dioxide in waste gas, and meanwhile, the extension air inlet cylinder I, the extension air inlet cylinder II and the extension air inlet cylinder III can be conveniently and quickly detached, so that waste gas can be better treated.
As a preferable technical scheme of the utility model, the electromagnetic valve is arranged and installed on the air supply duct, the first alkali asbestos layer is filled in the first filtering base box, and the first molecular sieve layer is filled in the second filtering base box.
The first filter base box and the first filter base box can be used for adsorbing water and carbon dioxide in gas entering the negative pressure glove box.
As a preferable technical scheme of the utility model, a first detection component is arranged between the fan and the extension air inlet barrel III, a second detection component is arranged at the lower half part of the exhaust pipe, the first detection component is composed of a carbon dioxide sensor and a humidity sensor, and the first detection component and the second detection component have the same structure.
The moisture and carbon dioxide content before the waste gas treatment can be measured respectively through the carbon dioxide sensor and the humidity sensor, so that the waste gas after the waste gas treatment can be compared and detected for use.
Compared with the prior art, the utility model has the beneficial effects that:
The radioactive sample is placed in the negative-pressure glove box by opening the sealing door, then closing the sealing door to enable the negative-pressure glove box to form a sealing space, then opening the sealing connection cover and opening the radioactive sample placed in the negative-pressure glove box through the sealing glove on the inner side of the sealing connection cover, then starting the fan to enable the air in the exhaust pipe to flow to form a negative-pressure environment, and the air with radioactivity in the negative-pressure glove box is sucked by the exhaust pipe, so that the air sequentially passes through the first extension air inlet barrel, the second extension air inlet barrel and the third extension air inlet barrel, and the second extension air inlet barrel, the third extension air inlet barrel, the second molecular sieve layer, the second alkali asbestos layer and the activated carbon layer are respectively filled in the first extension air inlet barrel, the second alkali asbestos layer and the activated carbon layer to treat harmful water and carbon dioxide carried by waste gas in the air, and the treated waste gas can be discharged.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic diagram of a second embodiment of the present utility model;
FIG. 3 is a schematic side view of the present utility model;
FIG. 4 is a schematic cross-sectional view of the utility model at A-A in FIG. 3;
FIG. 5 is a schematic partial cross-sectional view of the present utility model;
FIG. 6 is a schematic cross-sectional view of an extension air inlet duct of the present utility model;
Fig. 7 is a partial schematic view of fig. 1 at a in accordance with the present utility model.
In the figure: 1. negative pressure glove box; 101. a visual window; 102. sealing and connecting the cover; 103. sealing the door; 2. a blower; 3. extending a first air inlet cylinder; 301. a storage box; 302. a vent hole; 4. extending a second air inlet cylinder; 5. extending an air inlet cylinder III; 6. an air supply duct; 7. a first filtering base box; 8. a second filtering base box; 9. an electromagnetic valve; 10. a first alkali asbestos layer; 11. a molecular sieve layer I; 12. a molecular sieve layer II; 13. a second alkali asbestos layer; 14. an activated carbon layer; 15. a carbon dioxide sensor; 16. a humidity sensor; 17. and an exhaust pipe.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-7, an exhaust gas collection device for radioactive substances includes a negative pressure glove box 1, an exhaust pipe 17 is disposed and installed at the top of the negative pressure glove box 1, an air supply duct 6 is fixedly connected to the right side of the negative pressure glove box 1, a first filter base box 7 and a second filter base box 8 are disposed and installed at one side of one end of the air supply duct 6, which is far away from the negative pressure glove box 1, a gas containing radioactivity inside the negative pressure glove box 1 can be sucked by 17 and exhausted out through a fan 2, external air can enter the negative pressure glove box 1 through the air supply duct 6, and a first filter base box 7 and a second filter base box 8 which are arranged at the end parts of the air supply duct 6 can recover water and carbon dioxide in air flowing into the air supply duct 6, so that the pressure of recovering water and carbon dioxide in the gas at the rear end is reduced is realized.
Specifically, the front surface of the negative pressure glove box 1 is provided with a visual window 101, the front surface of the negative pressure glove box 1 below the visual window 101 is provided with a pair of sealing connection covers 102, the left side of the negative pressure glove box 1 is provided with a sealing door 103, and the internal condition of the negative pressure glove box 1 can be intuitively understood through the visual window 101.
Specifically, exhaust pipe 17 is kept away from negative pressure glove box 1 one end disposes in proper order and installs extension air inlet duct I3, extension air inlet duct II 4, extension air inlet duct III 5 and fan 2, and the structure constitution is the same between extension air inlet duct I3, extension air inlet duct II 4 and the extension air inlet duct III 5, and extend and dismantle the connection through the screw thread between air inlet duct I3, extension air inlet duct II 4 and the extension air inlet duct III 5, can carry the exhaust by fan 2 with the inside harmful gas of negative pressure glove box 1 through exhaust pipe 17, can carry out absorption treatment to HTO and 14CO2 in the waste gas of negative pressure glove box 1 through extension air inlet duct I3, extension air inlet duct II 4 and extension air inlet duct III 5, reduce the emission of harmful radial line material.
Specifically, the extension air inlet duct I3 comprises a storage box 301 fixedly installed on the inner wall of the storage box and a vent hole 302 penetrating through the surface of the storage box 301, the interior of the extension air inlet duct I3, the interior of the extension air inlet duct II 4 and the interior of the extension air inlet duct III 5 are respectively filled with a molecular sieve layer II 12, an alkali asbestos layer II 13 and an activated carbon layer 14, waste gas can be treated through the molecular sieve layer II 12, the alkali asbestos layer II 13 and the activated carbon layer 14, and meanwhile the extension air inlet duct I3, the extension air inlet duct II 4 and the extension air inlet duct III 5 can be conveniently and quickly detached, so that waste gas can be treated better.
Specifically, the electromagnetic valve 9 is configured and installed on the air supply duct 6, the first alkali asbestos layer 10 is filled in the first filtering base box 7, the first molecular sieve layer 11 is filled in the second filtering base box 8, and water and carbon dioxide in air can be adsorbed through the first alkali asbestos layer 10 and the first molecular sieve layer 11 in the first filtering base box 7 and the second filtering base box 8.
Specifically, a first detection component is configured and installed between the fan 2 and the extension air inlet barrel III 5, a second detection component is configured and installed at the lower half part of the exhaust pipe 17, the first detection component is composed of a carbon dioxide sensor 15 and a humidity sensor 16, the first detection component and the second detection component have the same structure, and the moisture and the carbon dioxide content before the waste gas treatment can be measured respectively through the carbon dioxide sensor 15 and the humidity sensor 16 so as to be convenient for comparing and detecting the waste gas after the waste gas treatment.
Working principle: the method comprises the steps of placing a radioactive sample into a negative pressure glove box 1 by opening a sealing door 103, then closing the sealing door 103 to enable the negative pressure glove box 1 to form a sealing space, then opening a sealing connection cover 102 and opening the radioactive sample placed in the negative pressure glove box 1 through sealing gloves on the inner side of the sealing connection cover 102, then starting a fan 2 to enable air in an exhaust pipe 17 to flow to form a negative pressure environment, sucking radioactive air in the negative pressure glove box 1 by an exhaust pipe 17, and when the air sequentially passes through a first extension air inlet cylinder 3, a second extension air inlet cylinder 4 and a third extension air inlet cylinder 5, respectively filling a second molecular sieve layer 12, a second alkali asbestos layer 13 and an active carbon layer 14 in the first extension air inlet cylinder 3, the second extension air inlet cylinder 4 and the third extension air inlet cylinder 5, treating harmful HTO and 14CO2 carried by waste gas in the air, discharging the treated waste gas, enabling the air in the negative pressure glove box 1 to supplement the air in the negative pressure glove box 1 by an air supply air channel 6 by opening an electromagnetic valve 9, and comparing the first filter base box 7 and the tail end of the air in the air supply channel 6 with the second filter base box 8 to detect the water in the air channel with the second molecular sieve layer, detecting the carbon dioxide layer and detecting the carbon dioxide layer, and comparing the detected data with the first molecular sieve layer and the second molecular sieve layer and the active carbon layer 13 detected and the quality.
Finally, it should be noted that: in the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The above is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that the present utility model is described in detail with reference to the foregoing embodiments, and modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (8)
1. The utility model provides a radioactive substance's exhaust gas collection device, includes negative pressure glove box (1), its characterized in that: the top configuration of negative pressure glove box (1) is installed exhaust pipe (17), and negative pressure glove box (1) right side fixedly connected with air supply wind channel (6), air supply wind channel (6) keep away from negative pressure glove box (1) one end one side configuration and install filtration base case one (7) and filtration base case two (8).
2. An exhaust collection device for radioactive materials as set forth in claim 1 wherein: the front surface configuration of negative pressure glove box (1) is installed visual window (101), and the front surface of negative pressure glove box (1) below visual window (101) is equipped with a pair of sealing connection lid (102), and sealing door (103) are installed in negative pressure glove box (1) left side configuration.
3. An exhaust collection device for radioactive materials as set forth in claim 1 wherein: one end of the exhaust pipe (17) far away from the negative pressure glove box (1) is sequentially provided with an extension air inlet barrel I (3), an extension air inlet barrel II (4), an extension air inlet barrel III (5) and a fan (2).
4. A radioactive material exhaust gas collecting apparatus according to claim 3, wherein: the structure components of the extension air inlet barrel I (3), the extension air inlet barrel II (4) and the extension air inlet barrel III (5) are the same, and the extension air inlet barrel I (3), the extension air inlet barrel II (4) and the extension air inlet barrel III (5) are detachably connected through threads.
5. A radioactive material exhaust gas collecting apparatus according to claim 3, wherein: the extension air inlet cylinder I (3) comprises a storage box (301) fixedly arranged on the inner wall of the extension air inlet cylinder I and a vent hole (302) penetrating through the surface of the storage box (301).
6. A radioactive material exhaust gas collecting apparatus according to claim 3, wherein: the interior of the first extension air inlet cylinder (3), the second extension air inlet cylinder (4) and the third extension air inlet cylinder (5) is respectively filled with a second molecular sieve layer (12), a second alkali asbestos layer (13) and an active carbon layer (14).
7. An exhaust collection device for radioactive materials as set forth in claim 1 wherein: the electromagnetic valve (9) is arranged on the air supply duct (6), the first alkali asbestos layer (10) is filled in the first filtering base box (7), and the first molecular sieve layer (11) is filled in the second filtering base box (8).
8. A radioactive material exhaust gas collecting apparatus according to claim 3, wherein: a first detection component is arranged between the fan (2) and the extension air inlet barrel III (5), a second detection component is arranged at the lower half part of the exhaust pipe (17), the first detection component is composed of a carbon dioxide sensor (15) and a humidity sensor (16), and the first detection component and the second detection component have the same structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322963989.3U CN221086696U (en) | 2023-11-02 | 2023-11-02 | Waste gas collecting device for radioactive substances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322963989.3U CN221086696U (en) | 2023-11-02 | 2023-11-02 | Waste gas collecting device for radioactive substances |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221086696U true CN221086696U (en) | 2024-06-07 |
Family
ID=91315245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322963989.3U Active CN221086696U (en) | 2023-11-02 | 2023-11-02 | Waste gas collecting device for radioactive substances |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221086696U (en) |
-
2023
- 2023-11-02 CN CN202322963989.3U patent/CN221086696U/en active Active
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