JPH0541437Y2 - - Google Patents
Info
- Publication number
- JPH0541437Y2 JPH0541437Y2 JP3824785U JP3824785U JPH0541437Y2 JP H0541437 Y2 JPH0541437 Y2 JP H0541437Y2 JP 3824785 U JP3824785 U JP 3824785U JP 3824785 U JP3824785 U JP 3824785U JP H0541437 Y2 JPH0541437 Y2 JP H0541437Y2
- Authority
- JP
- Japan
- Prior art keywords
- charcoal
- tray
- window
- layers
- filled
- 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.)
- Expired - Lifetime
Links
- 239000003610 charcoal Substances 0.000 claims description 58
- 238000011144 upstream manufacturing Methods 0.000 claims description 10
- 239000003245 coal Substances 0.000 claims 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 8
- 229910052740 iodine Inorganic materials 0.000 description 8
- 239000011630 iodine Substances 0.000 description 8
- 230000002285 radioactive effect Effects 0.000 description 8
- 239000012535 impurity Substances 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Separation Of Gases By Adsorption (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は原子力発電所で空気中の放射性沃素を
除去するために使用するチヤコールフイルタ装置
の改良に関するものである。[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to an improvement of a charcoal filter device used in nuclear power plants to remove radioactive iodine from the air.
（従来の技術）
従来の前記チヤコールフイルタ装置を第１６，
１７図により説明すると、１がハウジング、２が
上流側のダクト、３が下流側のダクト、６が窓を
設けた前板と側板と奥板と上下のチヤコール充填
層とをもち且つ同各チヤコール充填層の間にガス
通路をもつトレイ、４がハウジング１内のガス流
路を横切つて設けられて後面５部から上記トレイ
６を挿着可能に支持したトレイ棚で、上流側のダ
クト２からハウジング１内へ導かれた空気が上下
のチヤコール充填層→同各チヤコール充填層の間
にガス通路→トレイ６の前板に設けた窓を経て下
流側のダクト３へ導かれ、空気が上記上下のチヤ
コール充填層を通過するときに、空気中に含まれ
る放射性沃素が除去されるようになつている。(Prior art) The conventional charcoal filter device is
To explain with reference to Fig. 17, 1 is a housing, 2 is an upstream duct, 3 is a downstream duct, 6 is a front plate with a window, a side plate, a back plate, and upper and lower charcoal filling layers, and each of the same ducts has the same structure. A tray 4 having a gas passage between the filled layers is a tray shelf which is provided across the gas passage in the housing 1 and supports the tray 6 from the rear surface 5 so that the tray 6 can be inserted thereinto, and the duct 2 on the upstream side. The air is guided into the housing 1 through the upper and lower charcoal filled layers → the gas passage between the respective charcoal filled layers → the window provided in the front plate of the tray 6 and then guided to the duct 3 on the downstream side. Radioactive iodine contained in the air is removed when the air passes through the upper and lower charcoal filling layers.
（考案が解決しようとする問題点）
前記従来の前記チヤコールフイルタ装置では、
空気が各トレイ６の上下のチヤコール充填層を通
過して、空気中に含まれる放射性沃素が同チヤコ
ール充填層により除去されるときに、同チヤコー
ル充填層が空気中に含まれるSOx，NOx，溶剤，
油分等の不純物を吸着して、放射性沃素の吸着性
能が低下する。このため、場合によつては本来の
目的である放射性沃素を吸着して、チヤコール充
填層が劣化するよりも、SOx，NOx，溶剤，油
分等の不純物を吸着して、チヤコール充填層が劣
化する影響の方が大きくて、経済的に効率が悪い
ばかりでなく、劣化チヤコール充填層の繁雑な交
換に伴う作業量の増加、放射線雰囲気内での交換
作業に伴う作業員の被曝も発生するという問題が
あつた。(Problems to be solved by the invention) In the conventional charcoal filter device,
When air passes through the charcoal filling layers above and below each tray 6 and the radioactive iodine contained in the air is removed by the charcoal filling layer, the charcoal filling layer removes SOx, NOx, and solvents contained in the air. ，
It adsorbs impurities such as oil, reducing its ability to adsorb radioactive iodine. Therefore, in some cases, the charcoal packed bed deteriorates by adsorbing impurities such as SOx, NOx, solvents, and oil, rather than adsorbing radioactive iodine, which is its original purpose, and deteriorating the charcoal packed bed. The impact is greater, and it is not only economically inefficient, but also increases the amount of work required to replace the deteriorated charcoal filling bed, and workers are exposed to radiation due to the replacement work in a radioactive atmosphere. It was hot.
（問題点を解決するための手段）
本考案は前記の問題点に対処するもので、窓を
設けた前板と側板と奥板と添着炭を充填した上下
の第１チヤコール充填層とをもち且つ同各第１チ
ヤコール充填層の間にガス通路をもつ第１のトレ
イと、無窓の前板と側板と窓を設けた奥板と無添
着炭を充填した上下の第２チヤコール充填層とを
もち且つ同各第２チヤコール充填層の間にガス通
路をもつ第２のトレイと、ハウジング内のガス通
路を横切つて設けられて上記第１のトレイをその
前板に設けた窓がガスの流れ方向下流側に向かい
開口するようにまた上記第２のトレイをその奥板
に設けた窓がガスの流れ方向上流側に向かい開口
するように挿着可能に支持するトレイ棚とを具え
ていることを特徴としたチヤコールフイルタ装置
に係わり、その目的とする処は、添着炭を使用し
ているチヤコール充填層を有効利用できる。また
ハウジングの容積を最小限に抑えることができる
改良されたチヤコールフイルタ装置を供する点に
ある。(Means for Solving the Problems) The present invention addresses the above problems and has a front plate provided with a window, a side plate, a back plate, and upper and lower first charcoal filling layers filled with impregnated charcoal. In addition, a first tray having a gas passage between each of the first charcoal filled layers, a windowless front plate, a side plate, a back plate provided with a window, and upper and lower second charcoal filled beds filled with uncoated charcoal are provided. a second tray having a gas passage between each of the second charcoal filled layers, and a window provided in the front plate of the first tray, which is provided across the gas passage in the housing, to allow gas to pass through the first tray. The second tray is provided with a tray shelf that supports the second tray so that it can be inserted so that it opens toward the downstream side in the gas flow direction, and a window provided in the back plate of the second tray opens toward the upstream side in the gas flow direction. The present invention relates to a charcoal filter device characterized in that the purpose thereof is to effectively utilize a charcoal packed bed using impregnated charcoal. Another object of the present invention is to provide an improved charcoal filter device in which the volume of the housing can be minimized.
（実施例）
次に本考案のチヤコールフイルタ装置を第１図
乃至第１５図に示す一実施例により説明すると、
１１がハウジング、１２が上流側のダクト、１３
が下流側のダクト、１６ａが窓１７ａを設けた前
板１７と側板１８，１８と奥板１９と上下の第１
チヤコール充填層２０、２１とをもち且つ同各チ
ヤコール充填層２０，２１の間にガス通路２２を
もつ第１のトレイ、１６ｂが無窓の前板１７と側
板１８，１８と窓１９ａを設けた奥板１９と上下
の第２チヤコール充填層２０，２１とをもち且つ
同各チヤコール充填層２０，２１の間にガス通路
２２をもつ第２のトレイ、１４がハウジング１１
内のガス流路を横切つて設けられて後面１５ｂ部
から上記第１，２のトレイ１６ａ，１６ｂを挿着
可能に支持するトレイ棚で、上記第１のトレイ１
６ａの第１チヤコール充填層２０，２１には、放
射性沃素の吸着をよくするために表面を処理した
添着炭が使用され、上記第２のトレイ１６ｂに
は、安価な無添着炭が使用されている。これら第
１，２のトレイ１６ａ，１６ｂは、ボルト２４，
２５を介してトレイ棚１４の後面１５ｂに着脱自
在に取付けられるとともに第１，２のトレイ１６
ａ，１６ｂの前板１７及び奥板１９とトレイ棚１
４の前面１５ａ及び後面１５ｂとの間がシール材
２６によりシールされている。なお第１，２のト
レイ１６ａ，１６ｂの個数、配置等は上記例に限
定されない。また上記第１のトレイ１６ａの前板
１７に設けた窓１７ａは下流側のダクト１３の方
向に向い開口し、上記第２のトレイ１６ｂの奥板
１９に設けた窓１９ａは上流側のダクト１２の方
向に向い開口している。(Example) Next, the charcoal filter device of the present invention will be explained with reference to an example shown in FIGS. 1 to 15.
11 is the housing, 12 is the upstream duct, 13
is the downstream side duct, 16a is the front plate 17 with window 17a, the side plates 18, 18, the back plate 19, and the upper and lower first
A first tray having charcoal filling layers 20 and 21 and having a gas passage 22 between each of the charcoal filling beds 20 and 21; A second tray having a plate 19 and upper and lower second charcoal filled layers 20 and 21 and a gas passage 22 between the second charcoal filled layers 20 and 21;
A tray shelf that is provided across the gas flow path in the interior and supports the first and second trays 16a and 16b so as to be insertable from the rear surface 15b.
Impregnated carbon whose surface has been treated to improve the adsorption of radioactive iodine is used for the first charcoal packed layers 20 and 21 of 6a, and inexpensive non-impregnated charcoal is used for the second tray 16b. There is. These first and second trays 16a and 16b have bolts 24,
25 to the rear surface 15b of the tray shelf 14, and the first and second trays 16
Front plate 17 and back plate 19 of a, 16b and tray shelf 1
The space between the front surface 15a and the rear surface 15b of 4 is sealed by a sealing material 26. Note that the number, arrangement, etc. of the first and second trays 16a and 16b are not limited to the above example. Further, a window 17a provided on the front plate 17 of the first tray 16a opens toward the duct 13 on the downstream side, and a window 19a provided on the back plate 19 of the second tray 16b opens toward the duct 13 on the upstream side. It opens in the direction of.
（作用）
次に前記チヤコールフイルタ装置の作用を説明
する。上流側のダクト１２からハウジング１１内
へ導かれた空気が第２のトレイ１６ｂの奥板１９
に設けた窓１９ａ→ガス通路２２→第２のトレイ
１６ｂの上下の第２チヤコール充填層２０，２１
→第１のトレイ１６ａの上下の第１チヤコール充
填層２０，２１→ガス通路２２→第１の各トレイ
１６ａの前板１７に設けた窓１７ａを経て下流側
のダクト１３へ導かれ、空気が上記各上下のチヤ
コール充填層を通過するときに、空気中に含まれ
る放射性沃素が除去される。また上流側のダクト
１２からハウジング１１内へ導かれた空気が第２
のトレイ１６ｂの奥板１９に設けた窓１９ａ→ガ
ス通路２２→第２のトレイ１６ｂの上下の第２チ
ヤコール充填層２０，２１を通過するときに、空
気中に含まれるSOx，NOx，溶剤，油分等の不
純物の大半が除去される。(Function) Next, the function of the charcoal filter device will be explained. The air guided into the housing 11 from the upstream duct 12 passes through the back plate 19 of the second tray 16b.
Window 19a provided in → gas passage 22 → second charcoal filling layers 20, 21 above and below the second tray 16b
→The first charcoal filling layers 20, 21 above and below the first tray 16a→The gas passage 22→The air is guided to the downstream duct 13 through the window 17a provided in the front plate 17 of each first tray 16a. Radioactive iodine contained in the air is removed when the air passes through the upper and lower charcoal filled layers. Also, the air guided into the housing 11 from the upstream duct 12 is
SOx, NOx, solvent, Most of the impurities such as oil are removed.
（考案の効果）
本考案のチヤコールフイルタ装置は前記のよう
に窓を設けた前板と側板と奥板と添着炭を充填し
た上下の第１チヤコール充填層とをもち且つ同各
第１チヤコール充填層の間にガス通路をもつ第１
のトレイと、無窓の前板と側板と窓を設けた奥板
と無添着炭を充填した上下の第２チヤコール充填
層とをもち且つ同各第２のチヤコール充填層の間
にガス通路をもつ第２のトレイと、ハウジング内
のガス通路を横切つて設けられて上記第１のトレ
イをその前板に設けた窓がガスの流れ方向下流側
に向かい開口するようにまた上記第２のトレイを
その奥板に設けた窓がガスの流れ方向上流側に向
かい開口するように挿着可能に支持するトレイ棚
とを具えており、前記の作用が行われるので、次
の効果を達成できる。即ち、チヤコールフイルタ
装置内のチヤコール充填層はプラントの定期検査
ごとにその沃素除去効率を測定し、所定の除去率
以下に低下したときに、新しいものと取り替える
が、本考案のチヤコールフイルタ装置では、空気
中に含まれるSOx，NOx，溶剤，油分等の不純
物の大半が第２のトレイの上下の第２チヤコール
充填層により除去される。その際、上流側のダク
トからハウジング内に流入した空気が直接第１の
トレイの上下の第１チヤコール充填層へ導かれる
と、同第１のトレイの上下の第１チヤコール充填
層の除去効果が早期に失われるが、安価な第２の
トレイの上下の第２チヤコール充填層へまず導か
れて、上記SOx，NOx，溶剤，油分等の不純物
の大半が除去される。従つて添着炭を使用してい
る第１のトレイの上下の第１チヤコール充填層の
寿命を延ばすことができて、同添着炭を使用して
いる第１のトレイの第１チヤコール充填層を有効
利用できる。またトレイを交換するときは、ハウ
ジング内に入つて、トレイを交換することになる
が、第１，２のトレイをもとに前板側から引き抜
けばよくて、ハウジング内には、そのスペースが
あればよくて、ハウジングの容積を最小限に抑え
ることができる効果がある。(Effects of the invention) As described above, the chacoal filter device of the present invention has a front plate provided with a window, a side plate, a back plate, and upper and lower first chacoal filling layers filled with impregnated charcoal, and has the same first chacoal filter device. the first with a gas passage between the packed beds;
a tray, a windowless front plate, a side plate, a back plate with a window, upper and lower second charcoal filling layers filled with uncoated charcoal, and a gas passage between each of the second charcoal filling layers. a second tray, and a window provided in the front plate of the first tray that is provided across the gas passage in the housing and opens toward the downstream side in the gas flow direction; A tray shelf is provided in which a tray can be inserted and supported so that a window provided on the back plate thereof opens toward the upstream side in the direction of gas flow. That is, the iodine removal efficiency of the iodine removal efficiency of the charcoal packed bed in the charcoal filter device is measured at each periodic inspection of the plant, and when the removal rate falls below a predetermined level, it is replaced with a new one. In this case, most of the impurities such as SOx, NOx, solvent, and oil contained in the air are removed by the second charcoal packed layers above and below the second tray. At this time, if the air flowing into the housing from the upstream duct is directly guided to the first charcoal filling layer above and below the first tray, the removal effect of the first charcoal filling layer above and below the first tray is reduced. Although they are quickly lost, most of the impurities such as SOx, NOx, solvents, and oil are removed by first being led to the second charcoal packed layers above and below the inexpensive second tray. Therefore, it is possible to extend the life of the first charcoal packed layers above and below the first tray using impregnated charcoal, and to make the first charcoal packed bed of the first tray using the same impregnated charcoal more effective. Available. Also, when replacing the tray, you have to go into the housing and replace the tray, but all you have to do is pull it out from the front plate side based on the first and second trays, and there is a space inside the housing to replace the tray. This has the effect of minimizing the volume of the housing.
第１図は本考案に係わるチヤコールフイルタ装
置の一実施例を示す側面図、第２図は第１図の矢
視−線に沿う縦断正面図、第３図は第１図の
矢視−線に沿う縦断背面図、第４図は第１の
トレイの平面図、第５図はその正面図、第６図は
第４図の矢視−線に沿う縦断側面図、第７図
はその背面図、第８図は第２のトレイの平面図、
第９図はその正面図、第１０図は第８図の矢視Ｘ
−Ｘ線に沿う縦断側面図、第１１図はその背面
図、第１２図は同チヤコールフイルタ装置の一部
を拡大して示す縦断側面図、第１３図はその正面
図、第１４，１５図はその背面図、第１６図は従
来のチヤコールフイルタ装置の側面図、第１７図
は第１６図の矢視Ｘ−Ｘ線に沿う縦断背面図
である。
１１……ハウジング、１４……トレイ棚、１５
ａ……前面、１５ｂ……後面、１６ａ……第１の
トレイ、１６ｂ……第２のトレイ、１７……前
板、１７ａ，１９ｂ……窓、１８……側板、１９
……奥板、２０，２１……第１、第２のトレイ１
６ａ，１６ｂの第１、第２チヤコール充填層、２
２……ガス通路。
FIG. 1 is a side view showing an embodiment of a charcoal filter device according to the present invention, FIG. 2 is a longitudinal sectional front view taken along the arrow line in FIG. 1, and FIG. 4 is a plan view of the first tray, FIG. 5 is a front view thereof, FIG. 6 is a longitudinal sectional side view taken along the arrow line in FIG. 4, and FIG. Rear view, FIG. 8 is a plan view of the second tray,
Figure 9 is the front view, Figure 10 is the arrow X in Figure 8.
- A longitudinal side view taken along the X-ray, Fig. 11 is a rear view, Fig. 12 is a longitudinal side view showing an enlarged part of the same charcoal filter device, Fig. 13 is a front view thereof, Fig. 14, 15 16 is a side view of a conventional charcoal filter device, and FIG. 17 is a longitudinal cross-sectional rear view taken along the line X--X in FIG. 16. 11...Housing, 14...Tray shelf, 15
a...Front surface, 15b...Rear surface, 16a...First tray, 16b...Second tray, 17...Front plate, 17a, 19b...Window, 18...Side plate, 19
...Back board, 20, 21...First and second tray 1
6a, 16b first and second charcoal filling layers, 2
2...Gas passage.
Claims (1)
た上下の第１チヤコール充填層とをもち且つ同各
第１チヤコール充填層の間にガス通路をもつ第１
のトレイと、無窓の前板と側板と窓を設けた奥板
と無添着炭を充填した上下の第２チヤコール充填
層とをもち且つ同各第２チヤコール充填層の間に
ガス通路をもつ第２のトレイと、ハウジング内の
ガス通路を横切つて設けられて上記第１のトレイ
をその前板に設けた窓がガスの流れ方向下流側に
向かい開口するようにまた上記第２のトレイをそ
の奥板に設けた窓がガスの流れ方向上流側に向か
い開口するように挿着可能に支持するトレイ棚と
を具えていることを特徴としたチヤコールフイル
タ装置。 A first structure having a front plate provided with a window, a side plate, a back plate, and upper and lower first charcoal filled layers filled with impregnated coal, and having a gas passage between each of the first charcoal filled layers.
a tray, a windowless front plate, a side plate, a back plate provided with a window, upper and lower second charcoal filling layers filled with uncoated charcoal, and a gas passage between each of the second charcoal filling layers. The first tray is provided across the gas passage in the housing and the second tray is arranged so that a window provided in the front plate of the first tray opens toward the downstream side in the gas flow direction. A charcoal filter device comprising a tray shelf that can be inserted and supported so that a window provided in the back plate opens toward the upstream side in the gas flow direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3824785U JPH0541437Y2 (en) | 1985-03-19 | 1985-03-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3824785U JPH0541437Y2 (en) | 1985-03-19 | 1985-03-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61154600U JPS61154600U (en) | 1986-09-25 |
| JPH0541437Y2 true JPH0541437Y2 (en) | 1993-10-20 |
Family
ID=30545070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3824785U Expired - Lifetime JPH0541437Y2 (en) | 1985-03-19 | 1985-03-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0541437Y2 (en) |
-
1985
- 1985-03-19 JP JP3824785U patent/JPH0541437Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61154600U (en) | 1986-09-25 |
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