CN201823437U - Deep bed activated carbon iodine absorber - Google Patents
Deep bed activated carbon iodine absorber Download PDFInfo
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- CN201823437U CN201823437U CN 201020574328 CN201020574328U CN201823437U CN 201823437 U CN201823437 U CN 201823437U CN 201020574328 CN201020574328 CN 201020574328 CN 201020574328 U CN201020574328 U CN 201020574328U CN 201823437 U CN201823437 U CN 201823437U
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- activated carbon
- iodine
- iodine absorber
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Abstract
The utility model provides a deep bed activated carbon iodine absorber, comprising a front face plate and a rear face plate, wherein the inner part of the activated carbon iodine absorber is vertically provided with a plurality of activated carbon absorption beds, the upper part of each of the activated carbon absorption beds is connected with a feeding chamber, and the lower part of each of the activated carbon absorption beds is connected with a blanking chamber; two ends of the feeding chamber are respectively fixed on the front face plate and the rear face plate, a flow guide pipe is arranged on the feeding chamber, is uniformly provided with holes, and simultaneously is connected with a feed pipe; and the blanking chamber is provided with a chamber wall vibrator, the bottom of the blanking chamber is connected with an ejector, and the bottom of the ejector is connected with a discharge pipe. The deep bed activated carbon iodine absorber is used for removing gaseous iodine mixture in air and gases in air purification systems of a nuclear facility and a nuclear power station, and can improve the safety, reliability and convenience of running and maintenance of a ventilation system of a nuclear power plant.
Description
Technical field
The utility model relates to nuclear air purifier, is specifically related to a kind of dark bed type (III type) the activated carbon-iodine absorber that can effectively remove radioiodine in nuclear pollution surrounding air and the gas.
Background technology
Nuclear air cleaning system is used for protecting the public and equipment operations staff to avoid the radioactive particle that air contains and the harm of radgas.These particles and gas produce in nuclear reactor, nuclear fuel treating apparatus, radio chemistry operation, laboratory and other nuclear operating process.The gas that should arouse attention in nuclear air cleaning system is radioiodine.Although concentration is extremely low, thyroid gland has very high absorbability to radioiodine, makes it become a main potential radioactive source to the public and power station operations staff.Radioiodine mainly is that elemental iodine and methyl iodide are main organoiodine compound.In the ventilating system and air cleaning system of nuclear environment, charcoal absorption is a most frequently used method of removing radioiodine in the air.
Nuclear power developed countries such as U.S., method release the advanced nuclear power station technology of the third generation already in the world at present, part country more set about developing the 4th generation nuclear power technology.These nuclear power technologies of new generation are aspect the security that guarantees nuclear power station significant raising to be arranged with respect to an importance of original second generation nuclear power station advance.Aspect the nuclear pollution air cleaning of power station, generally adopted the activated carbon-iodine absorber.Improve nuclear pollution air radioactive particle and organic iodine filtered absorption property in, the activated carbon-iodine absorber is just towards compact conformationization, compact in size, the direction of Standardization instrument develops.
Summary of the invention
The purpose of this utility model is to provide a kind of dark bed type (III type) activated carbon-iodine absorber, the gaseous iodine mixture that it is used in nuclear facilities and the novel nuclear power station air cleaning system removal air has improved security, reliability and the convenience of nuclear power plant's ventilating system operation maintenance.
Realize the technical scheme of the utility model purpose: a kind of activated carbon-iodine absorber, it comprises front panel and rear board, inner several activated carbon adsorption beds of vertically arranging of this activated carbon-iodine absorber, each activated carbon adsorption bed top all connects feeding bin, and the bottom all connects blanking bin; The feeding bin two ends are separately fixed on front panel and the rear board, are provided with mozzle above feeding bin, evenly perforate on the mozzle, and mozzle also connects with feed pipe; Blanking bin is provided with hopper wall vibrator, and the blanking bin bottom is connected with injector, and the injector bottom connects discharge duct.
Aforesaid a kind of activated carbon-iodine absorber, its each activated carbon adsorption bed is by having 2 blocks of web plates, 2 blocks of flaps to be welded; The web plate of 2 even perforates of same size is formed the bed body, and 2 blocks of flaps lay respectively at web plate two ends up and down; Some dividing plates evenly separate the gas channel between adjacent active charcoal adsorbent bed to guarantee the rigidity and the glacing flatness of web plate; Acticarbon is filled between two blocks of web plates.
Aforesaid a kind of activated carbon-iodine absorber, it is provided with backing plate at web plate and flap junction.
Aforesaid a kind of activated carbon-iodine absorber, it is provided with sampling jar between adjacent active charcoal adsorbent bed, and sampling jar is in parallel with activated carbon adsorption bed, fills acticarbon in the sampling jar.
Aforesaid a kind of activated carbon-iodine absorber, it is at inner several activated carbon adsorption beds of vertically arranging of this activated carbon-iodine absorber.
Aforesaid a kind of activated carbon-iodine absorber, its described feeding bin top has top cover.
Aforesaid a kind of activated carbon-iodine absorber, it connects 2 blast pipes on plate in front.
Effect of the present utility model is: activated carbon-iodine absorber described in the utility model can be used for removing in nuclear facilities and the novel nuclear power station air cleaning system gaseous iodine mixture in the air.The upgrading that it helps accelerating air cleaning system in the nuclear engineering has improved security, reliability and the convenience of nuclear power plant's ventilating system operation maintenance, has higher economic and social benefit.Active-carbon bed thickness increases, and has improved adsorption efficiency.Adopt activated carbon-iodine absorber described in the utility model, personnel needn't enter the purification unit, and promptly replaceable adsorbing medium has been avoided operation maintenance personnel's radiation injury.The replacing time has also shortened, and has improved operating efficiency.
Description of drawings
Fig. 1 is dark bed type activated carbon-iodine adsorber structure schematic diagram;
Fig. 2 is dark bed type activated carbon-iodine absorber internal structure schematic diagram;
Fig. 3 is the activated carbon adsorption bed structural representation;
Among the figure: the 1-blast pipe; The 2-top cover; The 3-feed pipe; The 4-rear board; The 5-mozzle; The 6-feeding bin; The 7-activated carbon adsorption bed; The 8-sampling jar; The 9-dividing plate; The 10-front panel; The 11-hopper wall vibrator; The 12-discharge duct; The 13-blanking bin; The 14-injector; The 15-web plate; The 16-backing plate; The 17-flap.
The specific embodiment
Below in conjunction with accompanying drawing and instantiation dark bed type activated carbon-iodine absorber described in the utility model is further described.
As depicted in figs. 1 and 2, activated carbon-iodine absorber described in the utility model comprises top cover 2, feed pipe 3, mozzle 5, feeding bin 6, front panel 10, rear board 4, activated carbon adsorption bed 7, sampling jar 8, blast pipe 1, hopper wall vibrator 11, discharge duct 12 etc.
As shown in Figure 1, this activated carbon-iodine absorber forms stereochemical structure by front panel 10, rear board 4.2 blast pipes 1 are connected front panel 10 tops, and discharge duct 12 is connected front panel 10 bottoms.
As shown in Figure 2, inner 8 activated carbon adsorption beds 7, the bed dark 4 vertically arranged of this activated carbon-iodine absorber " (101.6mm).These activated carbon adsorption bed 7 tops all connect feeding bin 6, and feeding bin 6 two ends are separately fixed on front panel 10 and the rear board 4, are provided with mozzle 5 above feeding bin 6, evenly perforate on mozzle 5, and mozzle 5 also connects feed pipe 3.Acticarbon to be filled evenly enters feeding bin 6 by mozzle 5.Feeding bin 6 tops have top cover 2.These activated carbon adsorption bed 7 bottoms connect blanking bin 13, on blanking bin 13, be provided with hopper wall vibrator 11, blanking bin 13 bottoms are connected with injector 14, and injector 14 bottoms connect discharge duct 12, and the active carbon of inefficacy enters blanking bin 13 and enter discharge duct 12 under the inducing action of injector 14.
6 sampling jars 8 vertically are arranged on respectively between the adjacent active charcoal adsorbent bed 7, and sampling jar 8 is in parallel with activated carbon adsorption bed 7.Sampling jar is in order to carry out monitoring test, to provide on mounted system and regularly take off the adsorbent representative sample.Vertically by sampling jar, its effective discharge is identical with activated carbon adsorption bed for air-flow.The sampling jar bed is thick, the holdup time, pressure falls with jar in the filling density of adsorbent should be identical with absorber.
As shown in Figure 3, each activated carbon adsorption bed 7 is by having web plate 15, flap 17 to be welded.The web plate 15 of the even perforate of same size is formed the bed body, and flap 17 lays respectively at web plate, and about in the of 15 two ends, and acticarbon is filled between two blocks of web plates 15.At web plate 15 and flap 17 junctions the backing plate 16 that clamps web plate 15 is installed.Dividing plate 9 is evenly separated the gas channel between adjacent active charcoal adsorbent bed.Flap 17 and dividing plate 9 all have minimum to be the no bore edges of 1in. (25.4mm), prevent the wall attachment effect of gas flow.Dividing plate 9 is used for strengthening the rigidity of whole activated carbon adsorption bed.The adsorption section of whole active carbon adsorber is formed in a plurality of activated carbon adsorption beds 7 welding in parallel backs.
In this activated carbon-iodine absorber, feeding bin 6 covers the top of each activated carbon adsorption bed 7 fully.The minimum deposit quantity of sorbent of feeding bin 6 is equivalent to 5% adsorbent bed body bulk.The volume of feeding bin 6 is counted from being higher than dark position of design bed of arbitrary activated carbon adsorption bed 7 top porous plates.When having only in the adsorbent that is higher than a body can freely flow into bed, the part that just can think to replenish storing.
The top cover 2 of feeding bin 6 provides the filling of abundance and the requirement of inspection.Feeding bin top cover 2 has suitable handle, and can prevent that when normal operation gas from leaking.
Activated carbon-iodine absorber operation principle: air-flow enters from the windward side of 7 of activated carbon adsorption beds, and the acticarbon by filling flows out from outlet air surface again.New acticarbon enters feeding bin 6 by feed pipe 3, and the inefficacy acticarbon is entered blanking bin 13 and entered discharge duct 12 under the inducing action of injector 14 by activated carbon adsorption bed 7, stipulates to pack into the active carbon pail for used dressings according to handling.
The specification requirement of above-mentioned activated carbon-iodine absorber is: the antidetonation classification is an antidetonation I class; The device security grade is a nuclear safe level; The face wind speed is≤0.2m/s; The thick 101.6mm of absorber charcoal bed (4 "); Holdup time: 〉=0.5 second; Maximum airflow resistance≤600Pa; Perforation web plate punching rate 35 ± 5%.
The performance of the adsorbent efficient that requires:
Molecular iodine (30 ℃, Φ=95%) maximum penetration rate 0.1%;
The minimum conservation rate 99.5% of molecular iodine (180 ℃);
Methyl iodide (30 ℃, Φ=95%) maximum penetration rate 3%;
Methyl iodide (80 ℃, Φ=95%) maximum penetration rate 1%;
Methyl iodide (130 ℃, Φ=95%) maximum penetration rate 2%.
Show this activated carbon-iodine absorber through test: the face wind speed is 0.18m/s; The thick 115mm of absorber charcoal bed; Holdup time: 0.52 second; Maximum airflow resistance 350Pa; Perforation web plate punching rate 32%; Methyl iodide (30 ℃, Φ=95%) maximum penetration rate 0.6%; All design parameters have all reached the requirement of design standard.
Claims (7)
1. dark bed type activated carbon-iodine absorber, it comprises front panel (10) and rear board (4), it is characterized in that: inner several activated carbon adsorption beds (7) of vertically arranging of this activated carbon-iodine absorber, each activated carbon adsorption bed (7) top all connects feeding bin (6), and the bottom all connects blanking bin (13);
Feeding bin (6) two ends are separately fixed on front panel (10) and the rear board (4), are provided with mozzle (5) in feeding bin (6) top, and mozzle (5) is gone up even perforate, and the also same feed pipe of mozzle (5) (3) connects;
Blanking bin (13) is provided with hopper wall vibrator (11), and blanking bin (13) bottom is connected with injector (14), and injector (14) bottom connects discharge duct (12).
2. a kind of dark bed type activated carbon-iodine absorber according to claim 1, it is characterized in that: each activated carbon adsorption bed (7) is by having 2 blocks of web plates (15), 2 blocks of flaps (17) to be welded, the web plate of 2 even perforates of same size (15) is formed the bed body, and 2 blocks of flaps (17) lay respectively at web plate (15) two ends up and down; Some dividing plates (9) are top to bottm evenly separated the gas channel between adjacent active charcoal adsorbent bed (7); Acticarbon is filled between 2 blocks of web plates (15).
3. a kind of dark bed type activated carbon-iodine absorber according to claim 2 is characterized in that: be provided with backing plate (16) at web plate (15) and flap (17) junction.
4. a kind of dark bed type activated carbon-iodine absorber according to claim 1 and 2, it is characterized in that: between adjacent active charcoal adsorbent bed (7), be provided with sampling jar (8), sampling jar (8) is in parallel with activated carbon adsorption bed (7), fills acticarbon in the sampling jar (8).
5. a kind of dark bed type activated carbon-iodine absorber according to claim 1 and 2 is characterized in that: at inner several activated carbon adsorption beds (7) of vertically arranging of this activated carbon-iodine absorber.
6. a kind of dark bed type activated carbon-iodine absorber according to claim 1 and 2, it is characterized in that: described feeding bin (6) top has top cover (2).
7. a kind of dark bed type activated carbon-iodine absorber according to claim 1 and 2, it is characterized in that: plate (10) is gone up and is connected 2 blast pipes (1) in front.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020574328 CN201823437U (en) | 2010-10-22 | 2010-10-22 | Deep bed activated carbon iodine absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020574328 CN201823437U (en) | 2010-10-22 | 2010-10-22 | Deep bed activated carbon iodine absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201823437U true CN201823437U (en) | 2011-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020574328 Expired - Lifetime CN201823437U (en) | 2010-10-22 | 2010-10-22 | Deep bed activated carbon iodine absorber |
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| CN (1) | CN201823437U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105225718A (en) * | 2015-10-30 | 2016-01-06 | 上海核工程研究设计院 | A kind of Wind Volume type III activated carbon-iodine adsorber feed distributing pipe |
| CN110052110A (en) * | 2019-03-29 | 2019-07-26 | 中国辐射防护研究院 | A kind of III moldeed depth bed iodine adsorber |
| CN110057627A (en) * | 2019-03-11 | 2019-07-26 | 中国辐射防护研究院 | One seed nucleus air is except iodine systematic sampling device and the sampling method carried out using the device |
| CN113350962A (en) * | 2021-04-26 | 2021-09-07 | 中国辐射防护研究院 | Iodine adsorption device with high utilization rate of adsorbent |
-
2010
- 2010-10-22 CN CN 201020574328 patent/CN201823437U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105225718A (en) * | 2015-10-30 | 2016-01-06 | 上海核工程研究设计院 | A kind of Wind Volume type III activated carbon-iodine adsorber feed distributing pipe |
| CN110057627A (en) * | 2019-03-11 | 2019-07-26 | 中国辐射防护研究院 | One seed nucleus air is except iodine systematic sampling device and the sampling method carried out using the device |
| CN110057627B (en) * | 2019-03-11 | 2021-11-16 | 中国辐射防护研究院 | Sampling device of nuclear air iodine removal system and sampling method using same |
| CN110052110A (en) * | 2019-03-29 | 2019-07-26 | 中国辐射防护研究院 | A kind of III moldeed depth bed iodine adsorber |
| CN113350962A (en) * | 2021-04-26 | 2021-09-07 | 中国辐射防护研究院 | Iodine adsorption device with high utilization rate of adsorbent |
| CN113350962B (en) * | 2021-04-26 | 2023-03-21 | 中国辐射防护研究院 | Iodine adsorption device with high utilization rate of adsorbent |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110511 |
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| CX01 | Expiry of patent term |