JPS59116678U - Hydraulically operated main blocking valve - Google Patents

Hydraulically operated main blocking valve

Info

Publication number
JPS59116678U
JPS59116678U JP997183U JP997183U JPS59116678U JP S59116678 U JPS59116678 U JP S59116678U JP 997183 U JP997183 U JP 997183U JP 997183 U JP997183 U JP 997183U JP S59116678 U JPS59116678 U JP S59116678U
Authority
JP
Japan
Prior art keywords
plunger
oil
hydraulic cylinder
main body
hydraulically operated
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.)
Granted
Application number
JP997183U
Other languages
Japanese (ja)
Other versions
JPH029042Y2 (en
Inventor
貞二 宮川
岩村　好雄
早川　允雄
Original Assignee
株式会社荏原製作所
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 株式会社荏原製作所 filed Critical 株式会社荏原製作所
Priority to JP997183U priority Critical patent/JPS59116678U/en
Publication of JPS59116678U publication Critical patent/JPS59116678U/en
Priority to US06/834,103 priority patent/US4696452A/en
Application granted granted Critical
Publication of JPH029042Y2 publication Critical patent/JPH029042Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Turbines (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図ないし第３図は従来の主塞止弁を示し、第１図は
縦断面図、第２図は油圧関係図、第３図はりレープラン
ジャの説明図、第４図は従来の別の主塞止弁の要部を示
す縦断面図、第５図および第６図は本考案の第１実施例
を示し、第５図は縦断面図、第６図は要部の拡大断面図
、第７図は本考案の第２実施例を示す要部の拡大断面図
である。 １・・・・・・油圧ピストン、２・・・・・・油圧シリ
ンダ、３・・・・・・弁体、４・・・・・・弁棒、５・
・・・・・ハンドル、８・・・・・・ブツシュ、９・・
・・・・ストッパ、１０・・・・・・ねシ、１５・・・
・・・ばね受はスリーブ、１６・・・・・・急閉用ばね
、１８・・・・・・プランジャ、１９・・・・・・第１
のオリフィス、２◎・・・・・・第１のランド、２３・
・・・・・第２のオリフィス、２４・・・・・・第２の
ランド、２５・・・・・・連通孔、　　　２６・・・・
・・小径部、２７・・・・・・駆動片。 第５図Figures 1 to 3 show a conventional main blocking valve, Figure 1 is a longitudinal sectional view, Figure 2 is a hydraulic diagram, Figure 3 is an explanatory diagram of a beam plunger, and Figure 4 is a conventional valve. 5 and 6 show the first embodiment of the present invention, FIG. 5 is a longitudinal sectional view, and FIG. 6 is an enlarged sectional view of the main part. , FIG. 7 is an enlarged sectional view of a main part showing a second embodiment of the present invention. 1...Hydraulic piston, 2...Hydraulic cylinder, 3...Valve body, 4...Valve stem, 5...
...Handle, 8...Buttons, 9...
...Stopper, 10...Neshi, 15...
... Spring holder is sleeve, 16 ... Quick closing spring, 18 ... Plunger, 19 ... First
Orifice, 2◎...1st land, 23.
...Second orifice, 24...Second land, 25...Communication hole, 26...
...Small diameter part, 27... Drive piece. Figure 5

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 蒸気タービンの入口等に配設され弁体を開位置に保持す
るための油圧シリンダと、該油圧シリンダに平行に配設
され、該油圧シリンダに選択的に圧油を導くパイロット
リレーバルブとが備えられた油圧作動型主塞止弁におい
て、前記パイロットリレーバルブは、前記油圧シリンダ
の給油側および排油側油室に通ずる給油通路および排油
通路とが設けられた本体と、該本体に摺動自在に収納さ
れるプランジャとを備え、該プランジャは前記排油通路
側に第１のオリフィスが設けられた第１のランドと、前
記給油通路側に第２のオリフィスが設けられた第２のラ
ンドとが形成され、かつ該プランジャは、該両オリフィ
スは連通孔により前記本体の給油通路に連通されており
、そして外部から前記プランジャを軸方向に変位させる
手段を備えることを特徴とする油圧作動型主塞止弁。−
４、A hydraulic cylinder is provided at an inlet of a steam turbine to hold a valve body in an open position, and a pilot relay valve is provided in parallel to the hydraulic cylinder and selectively guides pressure oil to the hydraulic cylinder. In the hydraulically operated main stop valve, the pilot relay valve includes a main body provided with an oil supply passage and an oil drain passage communicating with the oil supply side and oil discharge side oil chambers of the hydraulic cylinder, and a main body that slides into the main body. a plunger that can be freely stored, the plunger having a first land provided with a first orifice on the side of the oil drain passage, and a second land provided with a second orifice on the side of the oil supply passage. and the plunger is of a hydraulically operated type, characterized in that both the orifices are communicated with the oil supply passage of the main body through a communication hole, and that the plunger is provided with means for displacing the plunger in the axial direction from the outside. Main blocking valve. −
4,
JP997183U 1983-01-28 1983-01-28 Hydraulically operated main blocking valve Granted JPS59116678U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP997183U JPS59116678U (en) 1983-01-28 1983-01-28 Hydraulically operated main blocking valve
US06/834,103 US4696452A (en) 1983-01-28 1986-02-24 Trip throttle valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP997183U JPS59116678U (en) 1983-01-28 1983-01-28 Hydraulically operated main blocking valve

Publications (2)

Publication Number Publication Date
JPS59116678U true JPS59116678U (en) 1984-08-07
JPH029042Y2 JPH029042Y2 (en) 1990-03-06

Family

ID=30141418

Family Applications (1)

Application Number Title Priority Date Filing Date
JP997183U Granted JPS59116678U (en) 1983-01-28 1983-01-28 Hydraulically operated main blocking valve

Country Status (1)

Country Link
JP (1) JPS59116678U (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6586045B2 (en) * 2016-06-10 2019-10-02 株式会社荏原エリオット Main stop valve

Also Published As

Publication number Publication date
JPH029042Y2 (en) 1990-03-06

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