JPH018765Y2 - - Google Patents
Info
- Publication number
- JPH018765Y2 JPH018765Y2 JP17475283U JP17475283U JPH018765Y2 JP H018765 Y2 JPH018765 Y2 JP H018765Y2 JP 17475283 U JP17475283 U JP 17475283U JP 17475283 U JP17475283 U JP 17475283U JP H018765 Y2 JPH018765 Y2 JP H018765Y2
- Authority
- JP
- Japan
- Prior art keywords
- gasket
- locking
- body plate
- opening
- clamp
- 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
- 238000000034 method Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Pressure Vessels And Lids Thereof (AREA)
Description
【考案の詳細な説明】
産業上の利用分野）
本考案は反応器、抽出器等高圧で用いられる圧
力容器用の自緊式開閉蓋装置に関する。[Detailed Description of the Invention] Field of Industrial Application) The present invention relates to a self-closing opening/closing lid device for pressure vessels used at high pressures such as reactors and extractors.
従来技術）
従来反応器、抽出器等化学工業の分野で用いら
れる高圧の圧力容器用の開閉蓋装置に関しては
種々の形式のものが提案されている。圧力が数十
気圧以上と高圧の場合には蓋板及び胴体フランジ
は厚肉になり通常のボルトナツトによる締付方式
では大径長尺のボルトが多数必要になり特に開閉
頻度が多い場合にはボルトナツトの取外し及び取
付に多くの労力と時間を要するため実際的でな
く、このボルト本数を減らしサイズを小さくする
改良がなされてきた。第１図及び第２図にその代
表例を示す、図に於て胴板１′の開口端部の外周
は係止段部２′になつており同じく蓋板３′の外周
囲も係止段部４′になつている。５′は前記段部
２′，４′を囲繞する環状のクランプであり通常は
180度の円弧長さで２分割され、その内径面には
前記係止段部２′，４′に嵌合する係止溝６′が刻
設されている。Prior art) Various types of opening/closing lid devices have been proposed for high-pressure vessels used in the chemical industry, such as reactors and extractors. When the pressure is high (several tens of atmospheres or more), the cover plate and body flange become thick, and the usual bolt-nut tightening method requires many long bolts with large diameters. This is impractical as it requires a lot of effort and time to remove and install, so improvements have been made to reduce the number and size of these bolts. Typical examples are shown in Figures 1 and 2. In the figures, the outer periphery of the open end of the body plate 1' becomes a locking step 2', and the outer periphery of the lid plate 3' is also locked. It becomes a stepped portion 4'. 5' is an annular clamp that surrounds the stepped portions 2' and 4';
It is divided into two parts with a circular arc length of 180 degrees, and a locking groove 6' that fits into the locking steps 2' and 4' is cut on the inner diameter surface thereof.
係止段部２′，４′と係止溝６′の係合面が角度
θをもつて接しているためボルトナツト８′を締
付ると胴板の係止段部２′、蓋板３′はガスケツト
１１′を緊締しシール作用を生ずる。このシール
方式では蓋板３′にかかる内圧に起因する力とガ
スケツトの所要締付力をボルトナツト８′で負担
しなくてはならないのでボルトサイズも相当の大
きさになる欠点がある。 Since the engaging surfaces of the locking steps 2', 4' and the locking groove 6' are in contact with each other at an angle θ, when the bolt nut 8' is tightened, the locking step 2' of the body plate and the cover plate 3 are tightened. ' tightens the gasket 11' to produce a sealing action. This sealing method has the disadvantage that the bolt size is considerably large because the bolt nut 8' must bear the force due to the internal pressure applied to the cover plate 3' and the required tightening force of the gasket.
第２図に図示される例も環状のクランプ５″の
内面に刻設される係止溝６″で胴板及び蓋板の係
止段部に角度θをもつて係合する点第１図の例と
同じであるがさらにガスケツト１１″が金属製の
三角形でありクランプのボルトナツト８″には相
当のガスケツトの最小締付圧力の負担がかかる欠
点があり開閉頻度が多い場合には金属ガスケツト
であるため蓋板及び胴板開口端部の当り面に損傷
が生じ易い欠点もある。 In the example shown in FIG. 2, the locking groove 6'' carved on the inner surface of the annular clamp 5'' engages the locking steps of the body plate and the lid plate at an angle θ. This is the same as the example above, but in addition, the gasket 11'' is a metal triangle, and the bolt/nut 8'' of the clamp has the disadvantage of having to bear a considerable amount of the minimum tightening pressure of the gasket.If the gasket is opened and closed frequently, a metal gasket is recommended. Therefore, there is also a drawback that damage is likely to occur on the contact surfaces of the lid plate and the opening end of the body plate.
考案の目的）
本考案は以上の従来技術の欠点を改良すべくな
されたものでシール性能がよくボルトサイズが小
さく、開閉頻度が多い高圧容器にも適する開閉蓋
装置を提供するものでその特徴とするところは圧
力容器胴板の開口部端部外周囲及び蓋板の外周囲
部にそれぞれ突設される係止段部に嵌合する係止
溝を有するクランプにより締着する開閉蓋装置に
於て、胴板開口部端部の内周角部及び蓋板の対峙
する部分にシール溝を刻設し、該シール溝には外
周面に２本のガスケツトを具備するシールリング
が嵌装され、内圧により拡径した該シールリング
が前記ガスケツトをそれぞれシール溝の胴板部分
及び蓋板部分に当接押圧する自緊式開閉蓋装置で
ある。(Purpose of the invention) The present invention was made to improve the above-mentioned drawbacks of the conventional technology, and provides an opening/closing lid device that has good sealing performance, has a small bolt size, and is suitable for high-pressure containers that are frequently opened and closed. This is done in the opening/closing lid device which is tightened by a clamp having locking grooves that fit into locking steps protruding from the outer periphery of the opening end of the pressure vessel body plate and the outer periphery of the cover plate. A sealing groove is carved in the inner circumferential corner of the end of the opening of the body plate and the opposing part of the cover plate, and a sealing ring having two gaskets on the outer circumferential surface is fitted into the sealing groove, This is a self-closing opening/closing lid device in which the seal ring whose diameter has been expanded by internal pressure presses the gasket into contact with the body plate portion and the lid plate portion of the seal groove, respectively.
考案の構成）
以下図面にもとずき本考案の構成について説明
する。第３図は本考案の一実施例を示す開閉蓋の
平面図、第４図は第３図のＡ−Ａ位置に於る本考
案の要部を示す要部縦断面図である。図において
１は圧力容器本体の胴板であり開口部端部の外周
には係止段部２が突設されている。３は蓋板であ
り外周囲下部には係止段部４が突設されている。
５は前記段部２，４を囲繞する環状のクランプで
あり大きさにより２個以上の複数個で円弧状に等
分割される。該クランプの内径面には前記係止段
部２，４に嵌合する係止溝６が刻設されている。
係止段部２，４と係止溝６の係合面は水平面（θ
＝０）であり従つて係止溝６の溝巾は係止段部
２，４の厚さプラス間隙分になる。７は分割され
たクランプの端部に上下それぞれ固着されるクラ
ンプラグでありその中央部にはボルトナツト８用
の通孔がクランプの円周接線方向に穿孔されてい
る。９は断面が長方形の環状のシールリングであ
り内圧により伸延できる様にステンレス又は銅系
合金等の材料からなる。胴板開口端の内周角部及
び蓋板の対峙する部分には前記シールリング９が
両者に跨つて嵌挿する環状のシール溝１０が刻設
されている。シールリング９の外周面にはリング
状のガスケツト１１嵌装用のガスケツト溝１２が
２本刻設されている。該ガスケツト１１の内１本
は蓋板側に当接し他の１本は胴板側に当接してい
る。Structure of the invention) The structure of the invention will be explained below based on the drawings. FIG. 3 is a plan view of an opening/closing lid showing an embodiment of the present invention, and FIG. 4 is a vertical cross-sectional view of the main parts of the present invention taken along the line AA in FIG. In the figure, reference numeral 1 denotes a body plate of the pressure vessel main body, and a locking step portion 2 is provided protruding from the outer periphery of the opening end. Reference numeral 3 denotes a lid plate, and a locking step portion 4 is provided protruding from the lower part of the outer periphery.
Reference numeral 5 denotes an annular clamp that surrounds the step portions 2 and 4, and is equally divided into two or more pieces in an arc shape depending on the size. A locking groove 6 that fits into the locking step portions 2 and 4 is formed on the inner diameter surface of the clamp.
The engagement surfaces of the locking steps 2 and 4 and the locking groove 6 are horizontal planes (θ
= 0), and therefore the groove width of the locking groove 6 is equal to the thickness of the locking steps 2 and 4 plus the gap. Reference numeral 7 denotes a clamp plug that is fixed to the upper and lower ends of the divided clamp, respectively, and a through hole for a bolt nut 8 is bored in the center of the clamp plug in the tangential direction of the circumference of the clamp. Reference numeral 9 denotes an annular seal ring with a rectangular cross section, and is made of a material such as stainless steel or copper alloy so that it can be expanded by internal pressure. An annular seal groove 10 into which the seal ring 9 is fitted is formed in the inner circumferential corner of the opening end of the body plate and the opposing portion of the cover plate. Two gasket grooves 12 for fitting ring-shaped gaskets 11 are cut on the outer peripheral surface of the seal ring 9. One of the gaskets 11 is in contact with the lid plate side, and the other one is in contact with the body plate side.
作用）
以上説明した構成の開閉蓋装置に於て内部圧力
Ｐがかかつた場合の作用について説明する。蓋板
は内圧により胴板の軸方向の開く方向に移動しよ
うとするが蓋板及び胴板の係止段部２，４にクラ
ンプ５の係止溝６が係合しているためこの移動は
一定の間隙で抑止される。一方シールリング９の
内周面側には内部圧力Ｐがかかるが外周面側２本
のガスケツト間は大気圧に等しいためシールリン
グ９はこの差圧により半径方向に拡大し２本のリ
ング状のガスケツト１１は蓋板及び胴板のシール
溝部の当接面に押圧されシールは自緊的に完全な
ものとなる。Operation) The operation when internal pressure P is applied to the opening/closing lid device configured as described above will be explained. The cover plate tries to move in the axial direction of the body plate due to internal pressure, but this movement is prevented because the locking groove 6 of the clamp 5 engages with the locking steps 2 and 4 of the cover plate and body plate. It is restrained by a certain gap. On the other hand, internal pressure P is applied to the inner peripheral surface of the seal ring 9, but the pressure between the two gaskets on the outer peripheral surface is equal to atmospheric pressure, so the seal ring 9 expands in the radial direction due to this pressure difference, and the two ring-shaped gaskets expand. The gasket 11 is pressed against the contact surfaces of the seal grooves of the lid plate and the body plate, and the seal is automatically completed.
考案の効果）
本考案を高圧の圧力容器に用いた場合次の従来
の装置には無かつた効果が得られる。Effects of the invention) When the present invention is used in a high-pressure pressure vessel, the following effects not found in conventional devices can be obtained.
イ ガスケツトが自緊的に緊締されるので比較的
安価なガスケツトを使用してもかなりの高圧ま
でシールできる。(a) Since the gasket is self-tightened, it is possible to seal up to quite high pressures even if a relatively inexpensive gasket is used.
ロ クランプには内圧に起因する円周方向の力は
かからないのでクランプ用ボルトは単に連接用
の強さのみあればよく、従つてボルトサイズは
最小となり開閉の省力化ができる。(b) Since no force in the circumferential direction due to internal pressure is applied to the clamp, the clamp bolt only needs to be strong enough for connection, so the bolt size is minimized and labor for opening and closing can be saved.
ハ シール機構及び各構成部分の構造が単純であ
り、開閉頻度が多い場合に問題となる疲労クラ
ツク等の点検が用意にできる。C. The structure of the seal mechanism and each component is simple, making it easy to inspect for fatigue cracks, etc., which can be a problem when opening and closing frequently.
第１図及び第２図は従来の開閉蓋装置の例を示
す図であり第３図は本考案の１実施例を示す開閉
蓋の平面図、第４図は要部縦断面図である。
１，１′：胴板、２，２′：係止段部、３，
３′：蓋板、４，４′：係止段部、５，５′，５″：
クランプ、６，６′，６″：係止溝、７：クランプ
ラグ、８，８′，８″：ボルトナツト、９：シール
リング、１０：シール溝、１１，１１′，１１″：
ガスケツト、１２：ガスケツト溝、Ｐ：内部圧
力。
1 and 2 are views showing an example of a conventional opening/closing lid device, FIG. 3 is a plan view of the opening/closing lid showing one embodiment of the present invention, and FIG. 4 is a longitudinal cross-sectional view of the main part. 1, 1': body plate, 2, 2': locking step, 3,
3': Lid plate, 4, 4': Locking step, 5, 5', 5'':
Clamp, 6, 6', 6'': Locking groove, 7: Clamp plug, 8, 8', 8'': Bolt nut, 9: Seal ring, 10: Seal groove, 11, 11', 11'':
Gasket, 12: Gasket groove, P: Internal pressure.
Claims (1)
周囲部にそれぞれ突設される係止段部２，４に嵌
合する係止溝６を有するクランプ５により締着す
る開閉蓋装置に於て、胴板開口部端部の内周角部
及び蓋板の対峙する部分にシール溝１０を刻設
し、該シール溝には外周面に２本のガスケツト１
１を具備するシールリング９が嵌装され、内圧に
より拡径した該シールリングが前記ガスケツト１
１をそれぞれ前記シール溝１０の胴板部分及び蓋
板部分に当接押圧することを特徴とする自緊式開
閉蓋装置。 An opening/closing lid device fastened by a clamp 5 having a locking groove 6 that fits into locking steps 2 and 4 protruding from the outer periphery of the opening end of the pressure vessel body plate and the outer periphery of the lid plate, respectively. In this process, a seal groove 10 is carved in the inner circumferential corner of the opening end of the body plate and in the opposing part of the cover plate, and two gaskets 1 are provided on the outer circumferential surface of the seal groove.
A seal ring 9 having a gasket 1 is fitted, and the seal ring 9 whose diameter is expanded by internal pressure is attached to the gasket 1.
1 is pressed against the body plate portion and the cover plate portion of the seal groove 10, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17475283U JPS6095264U (en) | 1983-11-14 | 1983-11-14 | Self-closing lid device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17475283U JPS6095264U (en) | 1983-11-14 | 1983-11-14 | Self-closing lid device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6095264U JPS6095264U (en) | 1985-06-28 |
| JPH018765Y2 true JPH018765Y2 (en) | 1989-03-09 |
Family
ID=30380365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17475283U Granted JPS6095264U (en) | 1983-11-14 | 1983-11-14 | Self-closing lid device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6095264U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03204481A (en) * | 1989-12-28 | 1991-09-06 | Nikkiso Co Ltd | Chamber for flow type measuring instrument |
-
1983
- 1983-11-14 JP JP17475283U patent/JPS6095264U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6095264U (en) | 1985-06-28 |
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