JPS5937382A - Butterfly valve of vacuum jacket type - Google Patents
Butterfly valve of vacuum jacket typeInfo
- Publication number
- JPS5937382A JPS5937382A JP14982382A JP14982382A JPS5937382A JP S5937382 A JPS5937382 A JP S5937382A JP 14982382 A JP14982382 A JP 14982382A JP 14982382 A JP14982382 A JP 14982382A JP S5937382 A JPS5937382 A JP S5937382A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve box
- valve body
- relay pipe
- box
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
- Lift Valve (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は断熱用の真空ジャケットを備え１こバタフラ
イ弁に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a single butterfly valve equipped with a vacuum jacket for heat insulation.
従来から断熱用の真空ジャケットを備えたバタフライ弁
が知られているが、その構造は弁本体に貫通した弁棒に
弁体を取付ける構造となっているため、弁座部の調整等
のメンテナンスを行なう際に弁棒と弁体を一体に抜き出
すことができない構造であった。その１こめ弁体を取出
すには管路との継手部分を外す必要があったが、継手部
分を外すためにはその外側に形成された真空ジャケット
も外さなければならす、その結果メンテナンスの際に弁
体を取外す等の措置をとるたびに真空が破れ、その後に
改めて真空引きしなければならないという間塑があった
。Butterfly valves equipped with vacuum jackets for heat insulation have been known for some time, but their structure is such that the valve body is attached to a valve stem that penetrates the valve body, making maintenance such as adjusting the valve seat unnecessary. The structure made it impossible to pull out the valve stem and valve body together. Part 1: In order to remove the valve body, it was necessary to remove the joint that connects to the pipe line, but in order to remove the joint, the vacuum jacket formed on the outside of the joint also had to be removed, which made maintenance difficult. Every time I took measures such as removing the valve body, the vacuum would break and I would have to re-evacuate afterwards.
このような問題があるために、液体水素（−２５３℃）
、液体ヘリウム（−２６８℃）等の超低温流体の配管用
としての本格的な真空ジャケット形バタフライ弁は末だ
実用化されていない。Due to these problems, liquid hydrogen (-253℃)
A full-scale vacuum jacket type butterfly valve for piping of ultra-low temperature fluids such as liquid helium (-268°C) has not yet been put into practical use.
この発明は、上記のごとき問題点を解決し、超低温液体
配管用として本格的に使用できる真空ジャケット形バタ
フライ弁を提供することを目的としている。The object of the present invention is to solve the above-mentioned problems and provide a vacuum jacket type butterfly valve that can be used on a full scale for ultra-low temperature liquid piping.
上記の目的を達成するために、この発明は弁不体の」一
部外側に中継管を突設し、その中継管に連通した弁箱挿
入穴を弁本体に設けると共に、その弁箱挿入穴に弁箱を
抜き差し自在に挿入し、」−記中継管の内部に弁棒挿通
用の小径筒を有する中空の弁箱固定軸を挿入し、その弁
箱固定軸の下端に」−記弁箱を結合し、」−記小径筒に
挿通し１こ弁棒を弁箱に貫通してその先端部番こバタフ
ライ形の弁体を固定し、」−記中継管の上端部に弁箱固
定軸の押え部材を嵌めると共に、その中継管の−１一端
部にシール材を介して弁蓋を装着し、且つ−１−配弁本
体と中継管の外周に真空ジャケットを形成し１こ構成と
したものであり、この構成により真空を破ることなく弁
棒、弁箱及び弁体を一体に抜き出すことができるもので
ある。In order to achieve the above object, the present invention provides a relay pipe protruding from a part of the outside of the valve body, a valve box insertion hole communicating with the relay pipe, and a valve box insertion hole in the valve body. Insert the valve box so that it can be freely inserted and removed, insert a hollow valve box fixing shaft with a small diameter cylinder for inserting the valve stem into the relay pipe, and insert the valve box fixing shaft into the lower end of the valve box fixing shaft. ``--Insert one valve stem into the small-diameter cylinder and penetrate the valve box to fix the butterfly-shaped valve body at its tip. At the same time, a valve cover was attached to one end of the relay pipe via a sealing material, and a vacuum jacket was formed around the outer periphery of the valve main body and the relay pipe to form a one-piece structure. With this configuration, the valve stem, valve body, and valve body can be extracted as one without breaking the vacuum.
以下、添付図面に基づいてこの発明の詳細な説明する。Hereinafter, the present invention will be described in detail based on the accompanying drawings.
管路に接続される弁本体１の」二部外側に円筒形の中継
管２を突設し、その中継管２を突設し１こ部分の弁本体
１に中継管２に連通した弁箱挿入穴３を形成している。A cylindrical relay pipe 2 is provided protruding from the outside of the second part of the valve body 1 that is connected to the pipe line, and the valve box is provided with the relay pipe 2 protruding from the second part of the valve body 1 to communicate with the relay pipe 2. An insertion hole 3 is formed.
弁本体１の下部には」−記弁箱挿入穴３に対向し１こも
う１つの弁箱挿入穴３が形成され、下方の１■人穴３の
上流側の片面が−１一方の挿入穴３の」−流側の片面よ
りも弁棒４寄りになるよう下方の挿入穴３を若干狭く形
成し、これらの挿入穴３，３に弁箱５を楔状に挿入し、
下流側に金属０リング１１等のガスケットを入れ液密、
気密状態に保持する。At the bottom of the valve body 1, another valve box insertion hole 3 is formed opposite to the valve box insertion hole 3, and one side of the upstream side of the lower one hole 3 has one insertion hole. The lower insertion hole 3 is formed slightly narrower so as to be closer to the valve stem 4 than the one side of the flow side of the hole 3, and the valve box 5 is inserted into these insertion holes 3, 3 in a wedge shape.
Insert a gasket such as metal O-ring 11 on the downstream side to make it liquid-tight.
Keep airtight.
」−記中継管２の内部には中空の弁箱固定軸６が挿入さ
れ、その弁箱固定軸６の下端に上記弁箱５の車端を先端
が円筒状のビス７（第２図参照）により若干の自在性を
持１こせて固定している。弁箱固定軸６はその中心部に
弁棒４を挿通ずるための小径筒６が貫通して８つ、その
小径筒６の外周（こ中空室８が形成されている。また、
弁箱固定軸６の外周壁は中程が一段小径に形成され、中
継管２との間（こ空所９が形成される。この空所９は弁
本体１上部の−に流側に設け１こ異常昇圧防止用の穴１
ｄ’により弁本体１の内部と連通している。A hollow valve box fixing shaft 6 is inserted into the relay pipe 2, and a screw 7 with a cylindrical tip (see Fig. 2) is attached to the lower end of the valve box fixing shaft 6. ), it is fixed with some flexibility. The valve box fixing shaft 6 has eight small-diameter cylinders 6 penetrating through its center, into which the valve stem 4 is inserted, and a hollow chamber 8 is formed on the outer periphery of the small-diameter cylinder 6.
The outer circumferential wall of the valve box fixed shaft 6 is formed to have a diameter that is one step smaller in the middle, and a space 9 is formed between it and the relay pipe 2. This space 9 is provided on the flow side at the upper part of the valve body 1. 1 Hole 1 for preventing abnormal pressure rise
It communicates with the inside of the valve body 1 through d'.
弁棒４は上記の小径筒６及び弁箱５を貫通して２つ、そ
の下端部にバタフライ形弁体１０が固定されている。弁
体１０は弁箱５の下流側内周に装着された弁座１１に接
触しシールされる。弁棒４は下部４ ａ 、中間部４１
）及び」二部４Ｃの３部分に分割されて２つ、下部４ａ
と中間部４ｂは流れの方向（矢印ａ参照）に沿ったピン
１２により連結され、また中間部４ｂと」一部４Ｃは」
１記ピン１２と９０度向きの異なったピン１３により連
結されている。ま１こ、」一部４Ｃは後述のウオーム操
作機１４に上下方向のキー１５を介して連結されている
。したがって、弁本体１やその前後の配管の熱収縮によ
り、弁本体１に前後、左右、上下方向に歪みが生ずるこ
とがあっても、その歪みは上記の各連結部において吸収
され、弁本体１の歪みが弁箱５、弁座１１及び弁体１０
に影響を与えず、これらの機能を損わないよう【こして
いる。Two valve rods 4 pass through the small-diameter cylinder 6 and the valve box 5, and a butterfly-shaped valve body 10 is fixed to the lower end thereof. The valve body 10 comes into contact with a valve seat 11 mounted on the downstream inner periphery of the valve box 5 and is sealed. The valve stem 4 has a lower part 4 a and a middle part 41
) and "2 parts 4C divided into 3 parts, lower part 4a
and the intermediate part 4b are connected by a pin 12 along the direction of flow (see arrow a), and the intermediate part 4b and the "part 4C"
It is connected to pin 12 by a different pin 13 oriented at 90 degrees. The part 4C is connected to a worm operating device 14, which will be described later, via an up and down key 15. Therefore, even if the valve body 1 is distorted in the front-rear, left-right, and up-down directions due to thermal contraction of the valve body 1 and the piping in front and behind it, the distortion is absorbed at each of the above-mentioned connecting parts, and the valve body 1 The distortion of the valve body 5, valve seat 11 and valve body 10
This is done so as not to affect or impair these functions.
な２、上記弁棒４の各部４ａ、４ｂ、４ｃはピンによっ
て連結されているため、弁棒４の回動に支障を来たすこ
とはない。2. Since each part 4a, 4b, 4c of the valve stem 4 is connected by a pin, rotation of the valve stem 4 is not hindered.
また、−に記中継管２の上端部に（才、弁箱固定軸６の
押え部材として、押えリング１６と、その上方に若干の
間隙をおいてネジリング１７をはめ、複数の固定ボルト
１日により押えリング１６の上下位置を定めると共に、
その押えリング１６と弁箱固定軸６との曲にスプリング
１９を介在している。このスプリング１９は、中継管２
と弁箱固定軸６との熱収縮毒が異なる（中心部の方が冷
えやすいため収縮量が犬）ことＯこより、弁箱５に対す
る押え力が低減しシール効果が喪失するのをその弾性力
により補償している。In addition, a retaining ring 16 and a threaded ring 17 are fitted with a slight gap above the retaining ring 16 as a retaining member for the valve box fixing shaft 6, and a plurality of fixing bolts are attached to the upper end of the relay pipe 2 as shown in -. While determining the vertical position of the presser ring 16,
A spring 19 is interposed between the retaining ring 16 and the valve box fixing shaft 6. This spring 19 is connected to the relay pipe 2
The heat shrinkage of the valve box fixing shaft 6 and the valve box fixing shaft 6 are different (the amount of shrinkage is smaller because the center gets colder). Therefore, the pressing force against the valve box 5 is reduced and the sealing effect is lost due to its elastic force. Compensation is provided by
上記の押えリング１６とネジリング１７には口芯の穴２
０．２０を設け、川にこれらの穴２０゜２０と口芯のネ
ジ穴２１を弁箱固定軸６の」−面に設けである。これら
の穴は、メンテナンスの際に弁箱５が強く挿入穴３．３
に食い込み抜き出し難いときに、例えばボルト１８を外
してこれを大田２０に差込み、ネジ穴２１にねじ込むと
弁箱固定軸６が押えリング１６と共にネジリング１７と
の間隙の分だけ上昇するので、弁箱５を容易に抜き出す
ことができる。The above-mentioned presser ring 16 and screw ring 17 have holes 2 for the mouth core.
0.20, and these holes 20 degrees 20 and the screw hole 21 of the mouth core are provided on the ``-'' side of the valve box fixing shaft 6. These holes are inserted into the insertion holes 3.3 when the valve box 5 is strongly inserted during maintenance.
For example, when the bolt 18 is bitten and difficult to pull out, remove the bolt 18, insert it into the Ota 20, and screw it into the screw hole 21. The valve box fixing shaft 6 will rise together with the retaining ring 16 by the gap between the threaded ring 17 and the valve box. 5 can be easily extracted.
」二記中継管６の」一端にはフランジ２２が形成され、
そのフランジ２２上にＯリング２３を介して弁蓋２４を
装着し、その弁蓋２４にウオーム操作機１４を取付けで
ある。弁棒４はこの弁蓋２４を気密・液密状態を保持し
て貫通している。A flange 22 is formed at one end of the relay pipe 6,
A valve cover 24 is mounted on the flange 22 via an O-ring 23, and a worm operating device 14 is attached to the valve cover 24. The valve stem 4 passes through the valve cover 24 in an airtight and liquidtight state.
また、」−記中継管２と弁本体１の周囲には真空ジャケ
ット２５が形成されている。この真空ジャケット２５は
適宜な継手２６を介して配管の周りに２いて密閉される
。Further, a vacuum jacket 25 is formed around the relay pipe 2 and the valve body 1. This vacuum jacket 25 is hermetically sealed around the piping via suitable fittings 26.
この発明の実施例の構成は以上のごときものであるから
、弁体１０を抜き出すには、弁蓋２４及びボルト１８を
外し、必要に応じてそのボルト１８を穴２０．２０に差
込み弁箱固定軸６及びこれと一体の弁箱５を若干引き上
げ、弁箱５と挿入穴３゜３との嵌合を解いたのち、ネジ
リング１７及び押えリング１６を外すと、弁棒４、弁箱
固定軸６、弁箱５、弁座１１及び弁体１０を真空ジャケ
ット２５から独立して抜き出すことができる。Since the configuration of the embodiment of the present invention is as described above, in order to take out the valve body 10, remove the valve cover 24 and the bolts 18, and if necessary, insert the bolts 18 into the holes 20 and 20 to fix the valve box. After pulling up the shaft 6 and the valve box 5 integrated with it slightly to release the fitting between the valve box 5 and the insertion hole 3°3, and removing the screw ring 17 and the retaining ring 16, the valve stem 4 and the valve box fixing shaft are removed. 6. The valve box 5, valve seat 11, and valve body 10 can be extracted independently from the vacuum jacket 25.
以上述べたことかられかるように、この発明によれば据
付は後のメンテナンス等に際して弁棒、弁箱、弁体等を
一体番こ抜き出すことができると共に、その際に真空を
破ることがないので、著しく作業が容易になる。したが
って、超低温流体配管用の本格的なバタフライ弁として
好適なものであるということができる。As can be seen from the above, according to the present invention, the valve stem, valve body, valve body, etc. can be removed all at once during subsequent maintenance, etc., and the vacuum is not broken at that time. This makes the work considerably easier. Therefore, it can be said that it is suitable as a full-scale butterfly valve for cryogenic fluid piping.
第１図は閉弁状態の縦断正面図、第２図は開弁状態の縦
断側面図である。
１・・・弁本体、２・・・中継管、３，３・・・弁箱挿
入穴１．４・・・弁棒、５・・・弁箱、６・・・弁箱固
定軸、１０・・・弁体、１６・・・押えリング、１７・
・・ネジリング、１９・・・スプリング、２３・・・０
リング特許出願人 共栄バルブ工業株式会社同 代
理人 鎌 １） 文 ニ第１図
４ａ−５FIG. 1 is a longitudinal sectional front view of the valve in the closed state, and FIG. 2 is a longitudinal sectional side view of the valve in the open state. 1... Valve body, 2... Relay pipe, 3, 3... Valve box insertion hole 1.4... Valve stem, 5... Valve box, 6... Valve box fixing shaft, 10 ... Valve body, 16 ... Holding ring, 17.
...Screw ring, 19...Spring, 23...0
Ring Patent Applicant Kyoei Valve Industry Co., Ltd. Agent Kama 1) Letter D Figure 1 4a-5
Claims (1)
し１こ弁箱挿入穴を弁本体に設けると共に、その挿入穴
に弁箱を抜き差し自在に挿入し、」二記中継管の内部に
弁棒挿通用の小径筒を有する中空の弁箱固定軸を挿入し
、その弁箱固定軸の下端に上記弁箱を結合し、」−記小
径簡に挿通した弁棒を弁箱に貫通してその先端部にバタ
フライ形弁体を固定し、上記中継管の上端部に弁箱固定
軸の押え部材を嵌めると共に、その中継管の上端部（こ
シール材を介して弁蓋を装着し、且つ上記弁本体と中継
管の外周に真空ジャケットを形成してなる真空ジャケッ
ト形バタフライ弁。A relay pipe is provided on the outside of the upper part of the valve body, a valve box insertion hole is provided in the valve body that communicates with the relay pipe, and the valve box is inserted into the insertion hole so as to be freely inserted and removed. Insert a hollow valve box fixing shaft having a small diameter pipe for inserting the valve stem into the valve box, connect the above valve box to the lower end of the valve box fixing shaft, and insert the valve stem inserted through the small diameter pipe into the valve box. A butterfly-shaped valve body is fixed to the tip of the valve body, and a holding member of the valve box fixing shaft is fitted to the upper end of the relay pipe. A vacuum jacket type butterfly valve, which is attached to the valve body and has a vacuum jacket formed around the outer periphery of the valve body and the relay pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14982382A JPS5937382A (en) | 1982-08-26 | 1982-08-26 | Butterfly valve of vacuum jacket type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14982382A JPS5937382A (en) | 1982-08-26 | 1982-08-26 | Butterfly valve of vacuum jacket type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5937382A true JPS5937382A (en) | 1984-02-29 |
Family
ID=15483470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14982382A Pending JPS5937382A (en) | 1982-08-26 | 1982-08-26 | Butterfly valve of vacuum jacket type |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5937382A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101196439B1 (en) * | 2012-05-31 | 2012-11-01 | 주식회사 부산도시가스 | Device and method for mending maintenance of valve |
| JP2013002591A (en) * | 2011-06-20 | 2013-01-07 | Miyawaki Inc | Mixing valve device, and method for taking out guide body thereof |
| CN104265995A (en) * | 2014-10-21 | 2015-01-07 | 成都市翻鑫家科技有限公司 | Insulating gate valve |
| JPWO2018168339A1 (en) * | 2017-03-14 | 2019-11-07 | 株式会社水研 | Inserting a butterfly valve under constant flow |
| WO2021172457A1 (en) | 2020-02-25 | 2021-09-02 | 株式会社キッツ | Valve |
| WO2023182472A1 (en) * | 2022-03-25 | 2023-09-28 | 株式会社中北製作所 | Valve |
| WO2023182471A1 (en) * | 2022-03-25 | 2023-09-28 | 株式会社中北製作所 | Jacket structure |
-
1982
- 1982-08-26 JP JP14982382A patent/JPS5937382A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013002591A (en) * | 2011-06-20 | 2013-01-07 | Miyawaki Inc | Mixing valve device, and method for taking out guide body thereof |
| KR101196439B1 (en) * | 2012-05-31 | 2012-11-01 | 주식회사 부산도시가스 | Device and method for mending maintenance of valve |
| CN104265995A (en) * | 2014-10-21 | 2015-01-07 | 成都市翻鑫家科技有限公司 | Insulating gate valve |
| JPWO2018168339A1 (en) * | 2017-03-14 | 2019-11-07 | 株式会社水研 | Inserting a butterfly valve under constant flow |
| WO2021172457A1 (en) | 2020-02-25 | 2021-09-02 | 株式会社キッツ | Valve |
| EP4112982A4 (en) * | 2020-02-25 | 2024-03-13 | Kitz Corporation | Valve |
| WO2023182472A1 (en) * | 2022-03-25 | 2023-09-28 | 株式会社中北製作所 | Valve |
| WO2023182471A1 (en) * | 2022-03-25 | 2023-09-28 | 株式会社中北製作所 | Jacket structure |
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