JPS58210304A - Separately-placed regulating valve tester - Google Patents
Separately-placed regulating valve testerInfo
- Publication number
- JPS58210304A JPS58210304A JP9120082A JP9120082A JPS58210304A JP S58210304 A JPS58210304 A JP S58210304A JP 9120082 A JP9120082 A JP 9120082A JP 9120082 A JP9120082 A JP 9120082A JP S58210304 A JPS58210304 A JP S58210304A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- lever
- piston
- regulating valve
- connecting rod
- 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
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/20—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted
- F01D17/22—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical
- F01D17/26—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical fluid, e.g. hydraulic
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Turbines (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は蒸気タービン用蒸気加減弁に係り、特に、その
弁を開直する機械式油圧サーボモータに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a steam control valve for a steam turbine, and more particularly to a mechanical hydraulic servo motor for re-opening the valve.
油雰囲気中での電気品の使用は、故障や誤作動表示が太
いので、ＩＭ開閉ストを実施した事による運転中のトラ
ブル管防止するため、及びテストを確実にするためテス
トハンドルを外部に取出し、手動操作としていた。When using electrical products in an oily atmosphere, failures and malfunctions are often displayed, so in order to prevent problems during operation due to the IM opening/closing strike, and to ensure a reliable test, the test handle should be taken out. , it was operated manually.
本発明の目的はタービン運転中に、制御入力側に何らの
変動を及ぼすことなく、弁の半閉テストを行ない得る弁
テスト装置を提供するにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a valve testing device that can perform a half-closed valve test without causing any fluctuations on the control input side during turbine operation.
本発明の他の目的は、単一のカム軸によル順次、開閉さ
れるようにした複数個の蒸気加減弁中の任意の１個を選
択して、その半開テストを行ない得る弁テスト装置を提
供するにある。Another object of the present invention is a valve testing device capable of performing a half-open test on any one of a plurality of steam control valves which are sequentially opened and closed by a single camshaft. is to provide.
以ド、本発明の一実施例を第１図により説明する弁作動
装置は第１弁についてのみ示されているが第２ないし４
弁についても同様である。Hereinafter, one embodiment of the present invention will be explained with reference to FIG. 1. The valve operating device is shown only for the first valve, but the second to fourth valves are shown.
The same applies to valves.
カム軸１１とその端部に取付けたビニオン９は、図示し
ない二次速度リレーによシ上ドされるランク１０と係合
し、このラック１０の上下動によシ、タービンの負荷に
応動して回転する。以下、第１弁につき、リンク機構及
び油圧サーボの構成を説明する。The camshaft 11 and the pinion 9 attached to its end engage with a rank 10 which is carried by a secondary speed relay (not shown), and the up and down movement of this rack 10 responds to the load of the turbine. and rotate. Hereinafter, the structure of the link mechanism and hydraulic servo for the first valve will be explained.
レバー３ ＃１１４を固定支点として回転０］′能に設
置され、カムおさえシリンダー２によ）曲端の力ＡＤ−
シーラーカム５外周に圧Ｊされている。更に、レバー３
の中間点はロッド１２によってパイロット操作レバー１
３に連結されている。レバー１３はその中間を第１図ブ
ロック１４ｄで示し、その詳細を第２図で後述する連、
端部分でパイロット弁１４に連結され、パイロット弁１
４は油圧サーボモーター１５にポート１４ａ、１４ｂ、
１５ａによシ連通している。油圧サーボモーターのピス
トン１５ｄはロッド１６．レバー２０によシ第１の加減
弁の弁体２２に連結される。同°、レバー２１、ロッド
１９は弁体２２の動きをサーボモータ１５に帰還し、レ
バー１７．ロッド１８は同じく弁体２２の動きをパイロ
ット弁１４に帰還するものである。なお、図示のカム６
ないし８についても、それぞれ前述したと同様のリンク
機構及び油圧サーボ、加減弁が設けられる。第１図中、
１４ｄで示した連結部の構成は次の通シである。Lever 3 is installed to rotate with #114 as a fixed fulcrum, and the force AD- at the bent end is applied by the cam holding cylinder 2.
It is pressed against the outer periphery of the sealer cam 5. Furthermore, lever 3
The midpoint of the pilot operating lever 1 is controlled by the rod 12.
It is connected to 3. The lever 13 is shown in the middle as a block 14d in FIG.
The end portion is connected to the pilot valve 14, and the pilot valve 1
4 is a hydraulic servo motor 15 with ports 14a, 14b,
It communicates with 15a. The piston 15d of the hydraulic servo motor is connected to the rod 16. A lever 20 is connected to a valve body 22 of the first control valve. At the same time, the lever 21 and the rod 19 return the movement of the valve body 22 to the servo motor 15, and the lever 17. The rod 18 similarly returns the movement of the valve body 22 to the pilot valve 14. In addition, the illustrated cam 6
8 to 8 are also provided with link mechanisms, hydraulic servos, and control valves similar to those described above. In Figure 1,
The structure of the connecting portion shown in 14d is as follows.
即ち、第２１園、第３図に示すように、レバー１３は固
定ｔ＄３２に装着したブツシュ２４内で摺動可能とした
コネクティングロッド２６上４に連結されており、この
コネクティングロッド２６内には押しバネ２５で上方向
に押し付けられたピストン２３を設け、また、コネクテ
ィングロッド２６にｉｉ支点２６ａとこの支点２６ａを
利用し、ピストン２３を押し下げるレバー２６ｂと、こ
のレバー２６ｂに力を加えるロッド２９をガイドするア
ーム２８を設けている。ロッド２９は上端にネジ２９ａ
を設け、このネジ２９ａを油圧サーボモータ格納箱３０
の雌ネジと取合いテストハンドル３１で上下動を繰返え
す。That is, as shown in Fig. 3 in Fig. 21, the lever 13 is connected to a connecting rod 26 which is slidable within a bushing 24 attached to a fixed shaft 32. The piston 23 is pressed upward by a push spring 25, and the connecting rod 26 is provided with a fulcrum 26a, a lever 26b that uses this fulcrum 26a to push down the piston 23, and a rod 29 that applies force to the lever 26b. An arm 28 is provided to guide the. The rod 29 has a screw 29a at the upper end.
and connect this screw 29a to the hydraulic servo motor storage box 30.
Repeat the up and down movement with the female screw and the test handle 31.
更ヒ、ピストン２３のブツシュ２４０下方に突出する凸
起は、パイロット弁１４の上方の凸起とコネクター３２
に連結される。Furthermore, the protrusion protruding downward from the bush 240 of the piston 23 is connected to the protrusion above the pilot valve 14 and the connector 32.
connected to.
次に、本発明装置の作動を説明する。Next, the operation of the device of the present invention will be explained.
通常の加減弁作動時には、テストロッド２９はレバー２
６ｂよル間１４１ ｍ ｍ ＊ しておく。従って、ピ
ストン２３は、Ｊ押しバネ２５にょシコネクティングロ
ッド２６内頂面に圧接され、ピストン２３とコネクティ
ングロッド２６は一体となってパイロット弁１４に連結
される。従って、カム＠１１の回転に応動するレバー１
３の動きにパイロット弁１４は追従し、油圧サーボモー
ター１５への圧油給排を行ない、加減弁の弁体２２を開
閉させる。During normal operation of the control valve, the test rod 29 is connected to the lever 2.
The distance between 6b and 6b is 141 mm*. Therefore, the piston 23 is pressed against the inner top surface of the connecting rod 26 by the J push spring 25, and the piston 23 and the connecting rod 26 are integrally connected to the pilot valve 14. Therefore, the lever 1 that responds to the rotation of the cam @11
The pilot valve 14 follows the movement of step 3, supplies and discharges pressure oil to the hydraulic servo motor 15, and opens and closes the valve body 22 of the control valve.
その際のリンク及び油圧サーボ機構の作動は通常慣用の
ものと全く同様であるー。The operation of the link and hydraulic servo mechanism at that time is exactly the same as that of a conventional one.
次ば、加減弁の半閉テストを行なう場合には、油圧サー
ボモータ格納箱３ｏの上面でハンドル・３１を回し、テ
ストロッド２９を下方に押し下げ、・レバー２６ｂ、支
点２６ａを介しピストン２３を押しバネ２５の力に抗し
徐々に押し下げる。この時、コネクションロッド２６は
全く動かない。ピストン２３の下降により、パイロット
弁１４も押し下げられ、油圧サーボモータ１５のピスト
ン１５ｄの下面に圧油を供給するボー）１４ａとボート
１５ａの連通を遮断すると同時に、ドレンボー） １４
ｃ 、 １４ ｂ 、 １５ ａ’と連通させる。従
って、サーホｌ−夕１５のピ淋トン１５ｄはバネ・ｉｓ
ｂの作用によりＡ下し、加減弁２２ｉｉ半閉する。Next, when performing a half-close test of the regulating valve, turn the handle 31 on the top surface of the hydraulic servo motor storage box 3o, push down the test rod 29, and push the piston 23 through the lever 26b and fulcrum 26a. Gradually push it down against the force of the spring 25. At this time, the connection rod 26 does not move at all. As the piston 23 descends, the pilot valve 14 is also pushed down, cutting off communication between the boat 14a that supplies pressure oil to the lower surface of the piston 15d of the hydraulic servo motor 15 and the boat 15a, and at the same time cutting off the communication between the boat 15a and the drain boat 14.
c, 14b, and 15a'. Therefore, the piston 15d of the server 15 is a spring.
By the action of b, A is lowered and the control valve 22ii is semi-closed.
本発明によれば、通５ｑ）ｎ合には、カム軸の回 ・転
によシ各加減弁は開閉動作し、例えば、１日１回等のテ
スト時にはカムリング系に何ら変動を及ぼすことなく、
任意の加減弁の半閉テストを行ない得、これによ〆、弁
棒のステック有無確認と防止が出来る。向、ピストン２
３はハンドルを元に戻す事によりバネ２５０カにょ力第
２図に図示した位置に復帰し通常運転状態となる。According to the present invention, each control valve opens and closes in accordance with the rotation and rotation of the camshaft during the 5q) and 5n rotations, so that, for example, during a test once a day, there is no change in the cam ring system. ,
It is possible to perform a half-closed test on any control valve, and by doing so, it is possible to confirm and prevent the valve stem from sticking. Direction, piston 2
3, by returning the handle to its original position, the force of the spring 250 returns to the position shown in FIG. 2, resulting in a normal operating state.
なお、図中１は制御圧油、１２ａは支点、１３ａはガイ
ド穴である。In the figure, 1 is control pressure oil, 12a is a fulcrum, and 13a is a guide hole.
第１図は本発明を４弁型蒸気加減弁作動装置に適用した
例を示す系統図、第２図は第１図の■部の詳細断面図、
ｓ３図は第２図のＩＩＩ−ＩＩＩ矢視断面図である。
１・・・制御圧油、２・・・油圧シリンダー、３・・・
レバー、４・・・カムローラー、５，６，７．８・・・
カム、９°・・・ピニオン、１０・・・ラック、１１・
・・カム軸、１２・・・ロン）”、１２ａ・・・支点、
１３・・・し／（−１１３Ｂ・・・ガイド穴、１４・・
・パイロット弁、１４ａ・・・給油ボ−１，１４ｂ・・
・給、排油ボーＦ、１４ｃ・・・排油ボー）、１４ｄ・
・・連結部、１５・・・サーボシリンダ、１５ａ・・・
ボート、１５ｂ・・・オシバネ、１５Ｃ・・・排油ポー
ト、１５ｄ・・−サーボピストン、１６・・・ロッド、
１７・・・レバー、１８・・・ロッド、１９・・・ロッ
ド、２０・・・レバ・−，２１・・・レバー、２２・・
・弁体、２３・・・ピストン、２４・・・ブツシュ、２
５・・・オシバネ、２６・・・コネクティングロッド、
２６ａ・・・支点、２６ｂ・・・レバー、ｔ・・・間隔
、２８・・・ガイドアーム、２９・・・ロッド、２９ａ
・・・昇降ネジ、３０・・・油圧す督 １ 詞FIG. 1 is a system diagram showing an example in which the present invention is applied to a four-valve steam control valve actuating device, FIG. 2 is a detailed sectional view of part ■ in FIG. 1,
Figure s3 is a sectional view taken along the line III-III in Figure 2. 1... Control pressure oil, 2... Hydraulic cylinder, 3...
Lever, 4...Cam roller, 5, 6, 7.8...
Cam, 9°...pinion, 10...rack, 11...
...Camshaft, 12...Ron)", 12a...Fully point,
13...shi/(-113B...guide hole, 14...
・Pilot valve, 14a... Refueling board 1, 14b...
・Supply, oil drain bow F, 14c...oil drain bow), 14d・
...Connection part, 15...Servo cylinder, 15a...
Boat, 15b...Oshibane, 15C...Drain port, 15d...-Servo piston, 16...Rod,
17... Lever, 18... Rod, 19... Rod, 20... Lever -, 21... Lever, 22...
・Valve body, 23... Piston, 24... Bush, 2
5...Oshibane, 26...Connecting rod,
26a...Fully point, 26b...Lever, t...Interval, 28...Guide arm, 29...Rod, 29a
...Elevating screw, 30...Hydraulic pressure controller 1 word
Claims (1)
ボモータと、この油圧サーボモータに圧油ｔ−給排する
パイロット弁と、このパイロット弁を応動させる制御機
構に連結されたレバーと、このレバーと前記パイロット
弁を連結し、プツシ内を摺動するコネクティングロッド
と、このコネクティングロッド内に摺動自在に設けた前
記パイロット弁に連結したピストンと、このピストンを
虐待は前記コネクティングロッドと一体に応動させ、開
閉テスト時には前記ピストンを作動させる操作装置を設
けたことを特徴とする別置形加減弁テスト装置つ(2) a steam control valve, a hydraulic servo motor for opening and closing the steam control valve, a pilot valve for supplying and discharging pressure oil to and from the hydraulic servo motor, and a lever connected to a control mechanism for responding to the pilot valve; A connecting rod that connects this lever and the pilot valve and slides inside the pusher, a piston that is slidably provided within this connecting rod and is connected to the pilot valve, and this piston is integrated with the connecting rod. A separately installed control valve test device characterized by being provided with an operating device that operates the piston in response to the opening/closing test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9120082A JPS58210304A (en) | 1982-05-31 | 1982-05-31 | Separately-placed regulating valve tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9120082A JPS58210304A (en) | 1982-05-31 | 1982-05-31 | Separately-placed regulating valve tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58210304A true JPS58210304A (en) | 1983-12-07 |
Family
ID=14019789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9120082A Pending JPS58210304A (en) | 1982-05-31 | 1982-05-31 | Separately-placed regulating valve tester |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58210304A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153828A (en) * | 2014-07-24 | 2014-11-19 | 中国长江动力集团有限公司 | Turbine admission regulating valve link mechanism |
-
1982
- 1982-05-31 JP JP9120082A patent/JPS58210304A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153828A (en) * | 2014-07-24 | 2014-11-19 | 中国长江动力集团有限公司 | Turbine admission regulating valve link mechanism |
| CN104153828B (en) * | 2014-07-24 | 2015-07-15 | 中国长江动力集团有限公司 | Turbine admission regulating valve link mechanism |
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