JPS643119Y2 - - Google Patents
Info
- Publication number
- JPS643119Y2 JPS643119Y2 JP14308080U JP14308080U JPS643119Y2 JP S643119 Y2 JPS643119 Y2 JP S643119Y2 JP 14308080 U JP14308080 U JP 14308080U JP 14308080 U JP14308080 U JP 14308080U JP S643119 Y2 JPS643119 Y2 JP S643119Y2
- Authority
- JP
- Japan
- Prior art keywords
- microwave
- transmission line
- shielding plate
- airtight window
- sandwiched
- 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
Links
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000003989 dielectric material Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000012857 radioactive material Substances 0.000 description 1
- 239000000941 radioactive substance Substances 0.000 description 1
- 239000002901 radioactive waste Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Constitution Of High-Frequency Heating (AREA)
Description
【考案の詳細な説明】
本考案は、例えば、放射性廃棄物の乾燥又は同
廃棄物の焼却灰を溶融固化するためのマイクロ波
加熱装置等において、装置内部の放射性物質、ガ
ス等が外部にもれるのを防止するために、外気と
装置内部とをマイクロ波導波管の途上において遮
へいするマイクロ波低損失誘電体を用いた気密窓
に関するものである。[Detailed description of the invention] The present invention can be used, for example, in a microwave heating device for drying radioactive waste or for melting and solidifying the incineration ash of the same waste, so that radioactive substances, gases, etc. inside the device are exposed to the outside. The present invention relates to an airtight window using a microwave low-loss dielectric material that shields the outside air and the inside of the device in the middle of a microwave waveguide in order to prevent air leakage.
従来この種の気密窓の遮へい板１は、セラミツ
クス等のマイクロ波低損失誘電体製の板で構成さ
れ、これが第３図に示されるように、直接導波管
Ｐ１，Ｐ２の接続用のフランジ部Ｆ１，Ｆ２間
に、その周囲において挾持されるように取付けら
れ、あるいは第４図に示されるように、金属製の
枠１ａに、その周囲において一体に溶着され、こ
の枠１ａを介して同様にフランジ部Ｆ１，Ｆ２間
に挟持されていた。しかしながら、前者の場合、
導波管という比較的大きく、かつ大重量を有する
ものの間に直接遮へい板が挟持されるため、取り
付けの際に機械的破損を生じやすく、作業に慎重
を要する難点がある。また後者は、遮へい板が破
損して取り替えを要する場合に、破損した遮へい
板は溶融炉内に投入して溶融処理可能であるが、
被加熱物が放射性物質を含む場合には、放射線を
浴びている枠は再使用できず、その廃棄処理には
大きな問題がある。 Conventionally, the shielding plate 1 of this type of airtight window is composed of a plate made of a microwave low-loss dielectric material such as ceramics, and as shown in FIG. It is attached between parts F1 and F2 so as to be sandwiched around the periphery thereof, or as shown in FIG. It was held between the flange parts F1 and F2. However, in the former case,
Since the shielding plate is directly sandwiched between the waveguides, which are relatively large and heavy, they are susceptible to mechanical damage during installation, which requires careful work. In addition, in the latter case, if the shielding plate is damaged and needs to be replaced, the damaged shielding plate can be put into a melting furnace and melted.
If the object to be heated contains radioactive materials, the frame exposed to radiation cannot be reused, and its disposal poses a major problem.
本考案は、従来のマイクロ波加熱装置に用いら
れる気密窓の前記のような欠点に鑑み、これを解
消すべく工夫されたもので、遮へい板を保持、離
脱可能な枠体を介して導波管塗上に取り付け、枠
体は、遮へい板を取り替えて反復使用可能にした
ことが特徴である。 The present invention was devised to solve the above-mentioned drawbacks of airtight windows used in conventional microwave heating devices. It is attached to a tube coating, and the frame is characterized by the fact that the shielding plate can be replaced to enable repeated use.
本考案の実施の一例を図面について説明する
に、第１図において、マイクロ波伝送路である導
波管Ｐ１，Ｐ２の左側がマイクロ波電源側、右側
が気密側とする。セラミツクス等のマイクロ波低
損失誘電体から成る遮へい板１は、一対の枠体
２，２間に挿脱自在である。一方の枠体２の対向
面内方縁部には、嵌合凹部２ａが形成され、この
嵌合凹部２ａ内に遮へい板１の周囲を嵌合させた
後、両枠体２がパツキング３を介して対向接合さ
れ、ねじ４により締め付けられる。しかして、枠
体２，２の対向位置には夫々ねじ孔２ｂが設けら
れており、枠体２は、遮へい板１を保持した状態
で導波管Ｐ１，Ｐ２の接合用フランジＦ１，Ｆ２
間に挿入され、前記ねじ孔２ｂを通してボルト・
ナツト５により固着される
遮へい板１は付着物の増加に原因する放電等に
よりしばしば破損され、取り替えを必要とする
が、この場合には、破壊された遮へい板１は炉中
へ投入して処理し、新しい遮へい板を再び枠体
２，２間に挿入して使用する。導波管接続部への
取付に際しては、比較的もろい遮へい板１は枠体
２内部に保持されているため、その破損を気にす
ることなく簡単、迅速に作業を進めることができ
る。これが本考案の特徴である。 An example of the implementation of the present invention will be described with reference to the drawings. In FIG. 1, it is assumed that the left side of the waveguides P1 and P2, which are microwave transmission lines, is the microwave power source side, and the right side is the airtight side. A shielding plate 1 made of a microwave low-loss dielectric material such as ceramics can be freely inserted and removed between a pair of frames 2, 2. A fitting recess 2a is formed on the inner edge of the opposing surface of one frame 2, and after the periphery of the shielding plate 1 is fitted into this fitting recess 2a, both frames 2 are fitted with packing 3. They are joined facing each other through the screws 4 and tightened with screws 4. Thus, screw holes 2b are provided at opposing positions of the frames 2, 2, respectively, and the frames 2 are connected to the joining flanges F1, F2 of the waveguides P1, P2 while holding the shielding plate 1.
The bolt is inserted between the holes 2b and 2b.
The shielding plate 1 fixed by the nuts 5 is often damaged due to electrical discharge caused by an increase in deposits and needs to be replaced. In this case, the destroyed shielding plate 1 is thrown into a furnace and disposed of. Then, a new shielding plate is inserted between the frames 2 and 2 again and used. When attaching to the waveguide connection part, since the relatively fragile shielding plate 1 is held inside the frame 2, the work can be carried out easily and quickly without worrying about damage to the shielding plate 1. This is a feature of the present invention.
第１図、第２図は本考案の実施の一例を示す縦
断正面図、第３図、第４図は従来例を示す縦断正
面図である。
１……遮へい板、２……枠体、２ａ……嵌合凹
部、３……パツキング、４……ねじ、５……ボル
ト・ナツト。
FIGS. 1 and 2 are longitudinal sectional front views showing an example of the implementation of the present invention, and FIGS. 3 and 4 are longitudinal sectional front views showing a conventional example. 1... Shielding plate, 2... Frame, 2a... Fitting recess, 3... Packing, 4... Screw, 5... Bolt/nut.
Claims (1)
するために、伝送路接続用フランジ部間に取り付
けられる気密窓であつて、マイクロ波低損失誘電
体板と、この誘電体板の周囲を取外し可能に相対
向して挾持する一対の取付枠体とから成り、この
取付枠体が前記マイクロ波伝送路接続用のフラン
ジ部間に挾持されていることを特徴とするマイク
ロ波加熱装置用気密窓。 This is an airtight window installed between the transmission line connection flanges to isolate the outside air and the inside of the device in the microwave transmission line.It is an airtight window that is installed between the transmission line connection flanges, and the microwave low loss dielectric plate and the surrounding area of this dielectric plate are removed. An airtight window for a microwave heating device, comprising a pair of mounting frames that are sandwiched so as to face each other, the mounting frames being sandwiched between the flange portions for connecting the microwave transmission line. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14308080U JPS643119Y2 (en) | 1980-10-07 | 1980-10-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14308080U JPS643119Y2 (en) | 1980-10-07 | 1980-10-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5764737U JPS5764737U (en) | 1982-04-17 |
| JPS643119Y2 true JPS643119Y2 (en) | 1989-01-26 |
Family
ID=29502843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14308080U Expired JPS643119Y2 (en) | 1980-10-07 | 1980-10-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS643119Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5433870B2 (en) * | 2008-07-28 | 2014-03-05 | 国立大学法人京都大学 | Microwave irradiation apparatus and connected microwave irradiation apparatus |
-
1980
- 1980-10-07 JP JP14308080U patent/JPS643119Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5764737U (en) | 1982-04-17 |
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