JPS6391114A - Throwaway filtering device for gas filtration - Google Patents
Throwaway filtering device for gas filtrationInfo
- Publication number
- JPS6391114A JPS6391114A JP23525986A JP23525986A JPS6391114A JP S6391114 A JPS6391114 A JP S6391114A JP 23525986 A JP23525986 A JP 23525986A JP 23525986 A JP23525986 A JP 23525986A JP S6391114 A JPS6391114 A JP S6391114A
- Authority
- JP
- Japan
- Prior art keywords
- housing
- filter element
- gas
- electron beam
- welding
- 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
- 238000001914 filtration Methods 0.000 title claims abstract description 20
- 238000003466 welding Methods 0.000 claims abstract description 30
- 238000010894 electron beam technology Methods 0.000 claims abstract description 16
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 7
- 239000010935 stainless steel Substances 0.000 claims abstract description 7
- 230000014759 maintenance of location Effects 0.000 abstract description 6
- 230000000717 retained effect Effects 0.000 abstract 1
- 239000011324 bead Substances 0.000 description 13
- 230000006866 deterioration Effects 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- 210000001503 joint Anatomy 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は気体を濾過するための気体濾過用使い捨て濾過
装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a disposable filtration device for gas filtration.
（従来の技術）
従来、ハウジングがステンレス鋼からなり、内部にフィ
ルターエレメントを配設してなる使い捨ての気体源適用
の濾過装置は、耐圧密封構造を得るため、ＴＩＧ溶接や
ＭＩＧ溶接で封止する方法が取られてきた。しかし、こ
れらの方法は、溶接時の高熱によりハウジング内のフィ
ルターエレメントが熱的劣化を受けやすいため、フィル
ターエレメントの材質も熱劣化を受けにくいものに制限
されること、又、ハウジングの内径とこれに内接するフ
ィルターエレメントとの間隔を溶接時の熱から防御する
ため、広く設ける必要からハウジング外径が大となり、
ラインへの配管時隣接配管との間を広く取らざるを得ず
配管スペースを多く要すること、溶接部の継手内面にポ
ケット状のデッドスペースを生じ気体が滞留すること、
などの欠点があった。(Prior art) Conventionally, disposable gas source filtration devices with a housing made of stainless steel and a filter element arranged inside are sealed by TIG welding or MIG welding in order to obtain a pressure-tight sealing structure. methods have been taken. However, with these methods, the filter element inside the housing is susceptible to thermal deterioration due to the high heat during welding, so the material of the filter element is also limited to one that is resistant to thermal deterioration. In order to protect the gap between the filter element and the filter element that is inscribed in the housing from the heat during welding, it is necessary to provide a wide space, so the outer diameter of the housing becomes large.
When piping to a line, it is necessary to leave a wide space between adjacent piping, which requires a large amount of piping space, and a pocket-like dead space is created on the inner surface of the joint at the welded part, causing gas to accumulate.
There were drawbacks such as.
（発明が解決しようとする問題点）
本発明の目的は、このような従来の欠点を解消して、フ
ィルターエレメントに熱的劣化がなく、かつハウジング
内部に気体の滞留部のない気体濾過用使い捨て濾過装置
を提供することにある。(Problems to be Solved by the Invention) An object of the present invention is to solve these conventional drawbacks and to provide a disposable gas filtration device in which the filter element does not undergo thermal deterioration and there is no gas retention area inside the housing. The purpose of the present invention is to provide a filtration device.
（問題点を解決するための手段）
本発明の要旨とするところは、筒体と、該筒体の上部と
底部に設けられた上蓋及び底蓋とからなり、かつ之等上
蓋及び底蓋は各々少くとも１つの開口を有するステンレ
ス鋼製ハウジング内にフィルターエレメントを配設して
なる気体濾過用使い捨て濾過装置において、前記筒体と
上蓋及び底蓋とを、電子ビーム溶接にて接合し、ハウジ
ングの内面を平滑となしたことを特徴とする濾過装置に
ある。(Means for Solving the Problems) The gist of the present invention is to consist of a cylindrical body, and a top cover and a bottom cover provided on the top and bottom of the cylindrical body, and the top cover and the bottom cover are In a disposable filtration device for gas filtration in which a filter element is arranged in a stainless steel housing each having at least one opening, the cylindrical body, a top cover, and a bottom cover are joined by electron beam welding, and the housing The filtration device is characterized by having a smooth inner surface.
以下、本発明の詳細な説明する。The present invention will be explained in detail below.
電子ビーム溶接方法は、従来ステンレス鋼の溶接に良く
用いられるＴＩＧ溶接に比べて、アスペクト比（ａｓｐ
ｅｃｔ ｒａｔｉｏ ：溶接ビードの溶込み深さくＨ
＞に対するビード幅＜ｗ＞ ；Ｈ／Ｗであられされる）
が大きく、ＴＩＧ溶接の０．３〜１に対して５０〜１０
０と云う値を示す。アスペクト比はその値が大きいほど
、同一のエネルギーでより深い溶込みが得られることを
示す。従って、同一の溶込み深さで、ＴＩＧ溶接及び電
子ビーム溶接を行なった場合、電子ビームによる溶接の
方が格段にエネルギー量が少ない為、溶接される材料の
総発熱量も格段に少ない。Compared to TIG welding, which is commonly used to weld stainless steel, electron beam welding has a lower aspect ratio (asp
ect ratio: Weld bead penetration depth H
> bead width <w>; beaded by H/W)
is large, 50-10 compared to 0.3-1 for TIG welding.
Indicates a value of 0. The larger the aspect ratio value, the deeper penetration can be obtained with the same energy. Therefore, when TIG welding and electron beam welding are performed at the same penetration depth, electron beam welding requires much less energy, and therefore the total calorific value of the welded materials is also much less.
フィルターエレメントを内包するハウジングを溶接によ
り封止する場合、溶接部の発熱が少なければ少ないほど
フィルターエレメントへの熱伝導が少なく、熱劣化の危
険が回避できる。又、ハウジングと、それに内接するフ
ィルターエレメントの間隔を狭く出来ることから、ハウ
ジング外径を小さくすることが出来、コンパクトな形状
にすることが可能である。又、電子ビーム溶接の大きい
アスペクト比により、フィルターエレメントに熱劣化を
与えない程度のエネルギー量で溶接継手の裏側までビー
ドを延ばすことが可能である。このことは、ハウジング
内側の溶接継手部の接合溝に起因する気体滞留の原因と
な乏ポケット状デッドゾーンをなくすこと、つまりハウ
ジングの内面を平滑化出来ることを意味する。When a housing containing a filter element is sealed by welding, the less heat is generated in the welded part, the less heat is conducted to the filter element, and the risk of thermal deterioration can be avoided. Further, since the distance between the housing and the filter element inscribed therein can be narrowed, the outer diameter of the housing can be reduced, and the shape can be made compact. Additionally, the large aspect ratio of electron beam welding allows the bead to extend to the back side of the weld joint with an amount of energy that does not cause thermal degradation to the filter element. This means that the dead zone in the form of a small pocket, which causes gas retention due to the joint groove of the welded joint inside the housing, can be eliminated, that is, the inner surface of the housing can be smoothed.
（実施例）
以下、図面に基ずいて本発明の好適な実施例を説明する
。(Embodiments) Hereinafter, preferred embodiments of the present invention will be described based on the drawings.
第１図に気体濾過用使い捨て濾過装置を示す。FIG. 1 shows a disposable filtration device for gas filtration.
Ｓ Ｕ Ｓ−３１６Ｌステンレス鋼からなるハウジング
は円筒１、気体の出入口付き上蓋３及び底蓋６がら成り
、上蓋３及び底蓋６と円筒１との接合部の周囲を電子ビ
ーム溶接４及び５で溶接して一体と成している。フィル
ターエレメント２をハウジング内に納め一体と成す為に
は、ハウジングの円周部を少なくとも１ケ所、フィルタ
ーエレメント２を組み込んだ後で溶接により封止する必
要がある。The housing is made of S-316L stainless steel and consists of a cylinder 1, a top lid 3 with a gas inlet and an inlet, and a bottom lid 6. The joints of the cylinder 1 and the top lid 3 and bottom lid 6 are welded by electron beam welding 4 and 5. It is welded into one piece. In order to integrate the filter element 2 into the housing, it is necessary to seal the housing at least one circumferential portion by welding after the filter element 2 is assembled.
第２図、第３図にハウジングの溶接に用いられる一般的
な継手を示す。（Ａ）はハウジングの外面側、（Ｂ）は
ハウジングの内面側を表わしている。第２図の突合わせ
継手においてＴＩＧ溶接を行うと、第４図の如きビード
１１を形成するが、ハウジング内面Ｂにポケット状の溝
１２が円筒内周面に形成され、気体の滞留の原因となる
。上記欠点を改善する為、ビードの溶込み深さを内面壁
に達するまで深く行うと、溶接部に与えるエネルギーも
大となり、温度も上昇する。このためハウジング内部の
フィルターエレメントの溶接部近縁は融点以上となり、
溶融し、フィルターエレメントとしての役目を果たさな
い。Figures 2 and 3 show common joints used for welding housings. (A) shows the outer side of the housing, and (B) shows the inner side of the housing. When TIG welding is performed on the butt joint shown in Fig. 2, a bead 11 as shown in Fig. 4 is formed, but a pocket-shaped groove 12 is formed on the inner circumferential surface of the cylinder on the inner surface B of the housing, which may cause gas retention. Become. In order to improve the above-mentioned drawbacks, if the welding depth of the bead is increased to reach the inner wall, the energy given to the welded part becomes large and the temperature rises. For this reason, the area near the welded part of the filter element inside the housing reaches a temperature above the melting point.
It melts and does not function as a filter element.
第６図は、電子ビーム溶接によるビード２１を示してい
る。ビード２１はハウジング外面（Ａ）からハウジング
内面（Ｂ）の継目部２２に達している。このように低エ
ネルギーでビードの溶込みを深く出来る為、ＴＩＧ溶接
でみられた上記の如き欠点は起こらない。FIG. 6 shows a bead 21 formed by electron beam welding. The bead 21 reaches a joint 22 from the outer surface (A) of the housing to the inner surface (B) of the housing. Since deep bead penetration can be achieved with low energy in this way, the above-mentioned drawbacks observed in TIG welding do not occur.
第３図のさし込み継手の場合、ＴＩＧ溶接を行うと、第
５図の如きビード３１を形成するが、３２のような滞留
部（溝）がつくられてしまう。In the case of the insertion joint shown in FIG. 3, when TIG welding is performed, a bead 31 as shown in FIG. 5 is formed, but a retention part (groove) like 32 is also created.
しかしてこの滞留部が折れ曲っていることから、ビード
の溶は込みを深くしても、溝３２はなくならない。第７
図は電子ビーム溶接によるビード４１の形成状態を示し
ている。この図において、電子ビーム溶接によるビード
４１は、ハウジング外面（Ａ）からダイレクトにハウジ
ング内面（Ｂ）の継目部４２へ達し本発明の目的を果た
している。However, since the retention portion of the lever is bent, the groove 32 will not disappear even if the bead is melted deeply. 7th
The figure shows how a bead 41 is formed by electron beam welding. In this figure, a bead 41 formed by electron beam welding reaches directly from the outer surface (A) of the housing to the joint 42 on the inner surface (B) of the housing, achieving the purpose of the present invention.
（発明の効果）
以上のように本発明に従い、気体源適用濾過装置のハウ
ジングの溶接による封止を電子ビーム溶接で行うことに
より、フィルターエレメントの熱的性質を考慮すること
なく、内部容積を小さくでき、かつ、ハウジング内面を
気体の滞留のない平滑な仕上げ面とすることが出来、か
（して気体の純度を低下させず、かつ気体中の微粒子を
除去することのできる気体濾過用使い捨て濾過装置を提
供しうるものである。(Effects of the Invention) As described above, according to the present invention, by sealing the housing of the gas source filtration device by electron beam welding, the internal volume can be reduced without considering the thermal properties of the filter element. A disposable filtration filter for gas filtration that can be used to remove fine particles from the gas without reducing the purity of the gas. The device can be provided.
第１図は本発明の気体源適用濾過装置の縦断面図、第２
図は突合わせ溶接継手の断面図、第３図はさし込み溶接
継手の断面図、第４図は突合わせ溶接継手をＴＩＧ溶接
した時の状態をあられす断面図、第５図はさし込み溶接
継手をＴＩＧ溶接した時の状態をあられす説明断面図、
第６図は突合わせ溶接継手を電子ビーム溶接した時の状
態をあられす断面図、第７図はさし込み溶接継手を電子
ビーム溶接した時の状態をあられす模式断面図である。
Ａ：ハウジング外面側、Ｂ：ハウジング内面側、１８円
筒、２：フィルターエレメント、３：上蓋、４．５：電
子ビーム溶接、６：底蓋、
１１．２１，３１，４１：溶接ビード、１２．２２，３
２，４２：溝部。FIG. 1 is a longitudinal sectional view of the gas source applicable filtration device of the present invention, and FIG.
Figure 3 is a cross-sectional view of a butt-welded joint, Figure 3 is a cross-sectional view of a socket-welded joint, Figure 4 is a cross-sectional view of the butt-welded joint when it is TIG welded, and Figure 5 is a cross-sectional view of the butt-welded joint. An explanatory cross-sectional view showing the state when TIG welding a welded joint,
FIG. 6 is a schematic cross-sectional view of a butt-welded joint that has been welded with an electron beam, and FIG. 7 is a schematic cross-sectional view of a socket-welded joint that has been welded with an electron beam. A: Housing outer side, B: Housing inner side, 18 cylinder, 2: Filter element, 3: Top cover, 4.5: Electron beam welding, 6: Bottom cover, 11. 21, 31, 41: Weld bead, 12. 22,3
2, 42: Groove.
Claims (1)
とからなり、かつ之等上蓋及び底蓋は各々少くとも１つ
の開口を有するステンレス鋼製ハウジング内にフィルタ
ーエレメントを配設してなる気体濾過用使い捨て濾過装
置において、前記筒体と上蓋及び底蓋とを、電子ビーム
溶接にて接合し、ハウジングの内面を平滑となしたこと
を特徴とする濾過装置。The filter element is disposed within a stainless steel housing consisting of a cylinder body and a top cover and a bottom cover provided at the top and bottom of the cylinder body, each of the top cover and the bottom cover having at least one opening. 1. A disposable filtration device for gas filtration, characterized in that the cylindrical body, top cover, and bottom cover are joined by electron beam welding, and the inner surface of the housing is made smooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23525986A JPS6391114A (en) | 1986-10-02 | 1986-10-02 | Throwaway filtering device for gas filtration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23525986A JPS6391114A (en) | 1986-10-02 | 1986-10-02 | Throwaway filtering device for gas filtration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6391114A true JPS6391114A (en) | 1988-04-21 |
Family
ID=16983432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23525986A Pending JPS6391114A (en) | 1986-10-02 | 1986-10-02 | Throwaway filtering device for gas filtration |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6391114A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103753010A (en) * | 2014-02-12 | 2014-04-30 | 新乡市利尔过滤技术有限公司 | Metal filter element welded through novel electric beam welding technology |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60502142A (en) * | 1983-08-29 | 1985-12-12 | ユナイテツド ステ−ツ フイルタ− フル−イド システムズ コ−ポレイシヨン | Filter leaf and its manufacturing method |
-
1986
- 1986-10-02 JP JP23525986A patent/JPS6391114A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60502142A (en) * | 1983-08-29 | 1985-12-12 | ユナイテツド ステ−ツ フイルタ− フル−イド システムズ コ−ポレイシヨン | Filter leaf and its manufacturing method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103753010A (en) * | 2014-02-12 | 2014-04-30 | 新乡市利尔过滤技术有限公司 | Metal filter element welded through novel electric beam welding technology |
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