JPH0214522B2 - - Google Patents
Info
- Publication number
- JPH0214522B2 JPH0214522B2 JP58246494A JP24649483A JPH0214522B2 JP H0214522 B2 JPH0214522 B2 JP H0214522B2 JP 58246494 A JP58246494 A JP 58246494A JP 24649483 A JP24649483 A JP 24649483A JP H0214522 B2 JPH0214522 B2 JP H0214522B2
- Authority
- JP
- Japan
- Prior art keywords
- oil passage
- cleaning
- hydraulic oil
- oil
- control device
- 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 - Lifetime
Links
- 239000003921 oil Substances 0.000 claims description 56
- 239000010720 hydraulic oil Substances 0.000 claims description 40
- 238000004140 cleaning Methods 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000011010 flushing procedure Methods 0.000 description 4
- 230000007257 malfunction Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
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
- F16N—LUBRICATING
- F16N33/00—Mechanical arrangements for cleaning lubricating equipment; Special racks or the like for use in draining lubricant from machine parts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は蒸気タービン制御装置の油通路清掃方
法に係り、特に、制御機器を一旦取外した上で油
通路の清掃を行うようにすることによつて制御機
器への異物の混入を防止し、かつ清掃を十分に行
いうるようにした蒸気タービン制御装置の油通路
清掃方法に関する。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a method for cleaning an oil passage in a steam turbine control device, and in particular, a method for cleaning an oil passage in a steam turbine control device. The present invention relates to a method for cleaning an oil passage of a steam turbine control device, which prevents foreign matter from entering control equipment and enables sufficient cleaning.
一般に、発電プラント等で使用される蒸気ター
ビンには、タービン軸の回転状態を制御するため
の種々の制御装置が付設されている。たとえば、
保安装置もその一種であり、タービンが通常の運
転から外れたとき非常停止させ蒸気タービン安全
に保つようにするための制御装置である。第１図
に示すように、この保安装置１には、油圧発生装
置２から油管路３を通して作動油が供給され、非
常時には、該保安装置１から油管路４を通して各
種蒸気弁５に急閉鎖用圧油が送供されるようにな
つている。また、前記蒸気弁５には油圧発生装置
２から油管路６を通して弁開保持用の圧油が直接
供給されており、この弁開保持用の圧油が上記保
安装置１からの急閉鎖用圧油により遮断され蒸気
弁５が急閉するようになつている。
Generally, steam turbines used in power generation plants and the like are attached with various control devices for controlling the rotational state of the turbine shaft. for example,
A safety device is also a type of control device that makes an emergency stop when the turbine deviates from normal operation to keep the steam turbine safe. As shown in FIG. 1, this safety device 1 is supplied with hydraulic oil from a hydraulic pressure generating device 2 through an oil pipe line 3, and in an emergency, the safety device 1 is supplied with oil through an oil pipe line 4 to various steam valves 5 for sudden closing. Pressure oil is now being delivered. Moreover, pressure oil for keeping the valve open is directly supplied to the steam valve 5 from the oil pressure generating device 2 through an oil pipe 6, and this pressure oil for keeping the valve open is supplied with pressure for sudden closing from the safety device 1. The steam valve 5 is shut off by the oil and is suddenly closed.
なお図中符号７および８は、排油管路を示し、
符号９はベント管路を示している。 Note that numerals 7 and 8 in the figure indicate oil drain pipes,
Reference numeral 9 indicates a vent pipe.
また、保安装置１は第２図に示すような構成を
なしている。すなわち、油圧発生装置２から油管
路３を通して送給される作動油は、メカニカルト
リツプバルブ（以下MTVという。）１１、ロツ
クアウト弁（以下LOVという。）１２およびリレ
ートリツプ弁（以下RTVという。）１３にそれぞ
れ矢印Ａ，ＢおよびＣで表すように送給される。 Further, the security device 1 has a configuration as shown in FIG. That is, the hydraulic oil supplied from the hydraulic pressure generator 2 through the oil pipe line 3 is supplied to a mechanical trip valve (hereinafter referred to as MTV) 11, a lockout valve (hereinafter referred to as LOV) 12, and a relay trip valve (hereinafter referred to as RTV) 13. are fed as indicated by arrows A, B and C, respectively.
そして、マスタートリツプソレノイド（以下
MTSという。）１４、マスタートリツプソレノイ
ドバルブ（以下MTSVという。）１５、マスター
トリツプソレノイドバルブＡ（以下MTSV−Ａと
いう。）１６およびマスタートリツプソレノイド
バルブＢ（以下MTSV−Ｂという。）１７が非常
停止信号を受けて動作した場合や、蒸気タービン
の回転数が規定値以上に上昇して非常調速機１８
が動作した場合あるいは、手動によりマスタート
リツプハンドル（以下MTHという。）１９を操
作した場合には前記蒸気弁５に急閉鎖圧油が送給
され蒸気タービンが非常停止するようになつてい
る。 And the master trip solenoid (below)
It's called MTS. ) 14, master trip solenoid valve (hereinafter referred to as MTSV) 15, master trip solenoid valve A (hereinafter referred to as MTSV-A) 16, and master trip solenoid valve B (hereinafter referred to as MTSV-B) 17 in emergency stop mode. The emergency governor 18 is activated when a signal is received, or when the speed of the steam turbine rises above the specified value.
When the master trip handle (hereinafter referred to as MTH) 19 is operated, or when the master trip handle (hereinafter referred to as MTH) 19 is operated, quick-closing pressure oil is supplied to the steam valve 5 and the steam turbine comes to an emergency stop.
なお上記MTV１１は非常調速機１８、MTS
１４およびMTH１９の動作により作動され、蒸
気弁５内の油圧を排出するように弁切換が行われ
るものであり、また、LOV１２は、上記MTV１
１と蒸気弁５との間の油圧の連絡を断つことがで
きるようにしたものであつて、タービン運転中に
非常調速機１８を作動試験するためのものであ
り、さらにRTV１３は、油圧の増巾を行う機能
を有するものである。また第２図中符号２０，２
１は、蒸気弁５への供給油圧を検出して油圧低下
時にタービンの停止を知らせる圧力スイツチを示
すとともに、符号２２は、圧力スイツチ２０，２
１への油圧の脈動を防止するアキユムレータを示
している。さらに、符号２３は、油圧の低下によ
つて蒸気タービンが非常停止した場合に蒸気ター
ビンの抽気ライン逆止弁作動させる油圧作動の空
気遮断弁を示すとともに、特に原子力発電プラン
トでは、蒸気タービン停止時の油圧低下を検出し
て原子炉を保護する圧力スイツチ２４，２５，２
６，２７が設けられている。 In addition, the above MTV11 is an emergency governor 18, MTS
14 and MTH 19, and the valve is switched so as to discharge the hydraulic pressure in the steam valve 5. Also, the LOV 12 is operated by the operation of the above MTV 1.
1 and the steam valve 5, and is used to test the operation of the emergency governor 18 during turbine operation. It has the function of increasing the width. Also, reference numerals 20 and 2 in Fig. 2
1 indicates a pressure switch that detects the oil pressure supplied to the steam valve 5 and notifies the turbine to stop when the oil pressure decreases, and 22 indicates a pressure switch 20, 2.
1 shows an accumulator that prevents oil pressure pulsation to 1. Further, reference numeral 23 indicates a hydraulically operated air cutoff valve that operates the steam turbine bleed line check valve when the steam turbine comes to an emergency stop due to a drop in oil pressure. Pressure switches 24, 25, 2 that protect the reactor by detecting a drop in oil pressure
6 and 27 are provided.
そして、これらの保安装置制御機器は、第３図
に示すように配置されている。すなわち油管路
３，４，７，９はマニホールドブロツク２８を介
して、MTV１１、LOV１２、RTV１３に接続
されるとともに各油管路の途中からの分岐管路に
空気遮断弁２３、圧力スイツチ２０，２１，２
４，２６，２７およびアキユムレータ２２が接続
されている。 These safety device control devices are arranged as shown in FIG. That is, the oil pipes 3, 4, 7, and 9 are connected to the MTV 11, LOV 12, and RTV 13 via the manifold block 28, and an air cutoff valve 23, pressure switches 20, 21, 2
4, 26, 27 and an accumulator 22 are connected.
ところが、各制御機器は、非常に精密な精度が
要求されるため異物の混入を回避せねばならず、
配管組付後においては、配管内部に付着したごみ
や異物の除去を行つて運転中に各制御機器内に異
物が混入しないようにする必要がある。このた
め、従来から配管の現地組付後、清掃油を各配管
内に流して循環させる（オイルフラツシング）こ
とによつて配管掃除を実施していた。
However, each control device requires extremely high precision, so it is necessary to avoid contamination with foreign matter.
After the piping is assembled, it is necessary to remove dirt and foreign matter that have adhered to the inside of the piping to prevent foreign matter from entering each control device during operation. For this reason, pipe cleaning has conventionally been carried out by flowing cleaning oil into each pipe and circulating it (oil flushing) after the pipes have been assembled on-site.
しかし、このようなオイルフラツシングを行う
と、各配管内の清掃は実行されるが、除去された
異物がしばしば制御機器内に混入してしまい、特
に切換弁類に動作不良が発生して適切なる制御動
作を得ることができなくなることがよくあつた。 However, when such oil flushing is performed, the inside of each pipe is cleaned, but the removed foreign matter often gets mixed into the control equipment, causing malfunctions in switching valves in particular. In many cases, it was not possible to obtain the desired control action.
そこで本発明は、油通路内の清掃に当つて制御
機器内に異物が一切混入することなく、油通路内
のオイルフランシングを行うことができるように
した蒸気タービン制御機器の油通路清掃方法を提
供することを目的とする。
Therefore, the present invention provides a method for cleaning an oil passage in a steam turbine control equipment, which enables oil flancing in the oil passage without any foreign matter getting into the control equipment. The purpose is to provide.
上記目的を達成するため本発明は、各制御機器
に作動油を導く作動油通路を形成してなる作動油
通路ハウジングに上記各制御機器を着脱自在に取
付けておき、油通路清掃時には各制御機器を一旦
取外し、その位置に上記作動油通路ハウジングの
作動油通路どうしを互いに連通せしめる清掃油通
路を備えてなる清掃油通路ハウジングを取付けた
後、清掃油を上記作動油通路内に供給して循環さ
せるようにしたことを特徴とし、制御機器を油通
路から分離した上で清掃を行うようにしている。
In order to achieve the above object, the present invention has the above-mentioned control devices removably attached to a hydraulic oil passage housing formed with a hydraulic oil passage that guides hydraulic oil to each control device, and when cleaning the oil passage, each control device is temporarily removed, and a cleaning oil passage housing comprising a cleaning oil passage that connects the hydraulic oil passages of the hydraulic oil passage housing with each other is installed in its place, and then cleaning oil is supplied into the hydraulic oil passage and circulated. The control equipment is separated from the oil passage before cleaning.
以下、本発明の実施例を図面に基づいて詳細に
説明する。
Embodiments of the present invention will be described in detail below with reference to the drawings.
第４図に示す実施例は上述した保安装置に関す
るものであつて、各制御機器および油通路は第１
図、第２図および第３図と同一符号で表してい
る。 The embodiment shown in FIG. 4 relates to the above-mentioned safety device, in which each control device and oil passage are
The same reference numerals as in FIGS. 2 and 3 are used.
まず、作動油を各制御機器に供給する各配管路
３，４，７，９は、作動油通路ハウジング３０を
介して各制御機器に接続されている。すなわち、
上記作動油通路ハウジング３０内には複数本の作
動油通路３１が形成されており、この各作動油通
路３１の入口部に上記配管路３，４，７，９が連
結されるとともに、作動油通路３１の出口部には
各制御機器が連結されている。 First, each piping line 3 , 4 , 7 , 9 that supplies hydraulic oil to each control device is connected to each control device via a hydraulic oil passage housing 30 . That is,
A plurality of hydraulic oil passages 31 are formed in the hydraulic oil passage housing 30, and the piping lines 3, 4, 7, and 9 are connected to the inlet portion of each hydraulic oil passage 31, and the hydraulic oil passages 3, 4, 7, and 9 are connected to Each control device is connected to the outlet of the passage 31.
さらに上記各制御機器は上記作動油通路ハウジ
ング３０に着脱自在に取付けらている。すなわ
ち、MTV１１、LOV１２、RTV１３は、作動
油通路ハウジング３０にボルト３２により締付け
固定されたマニホールドブロツク３３を介して取
付けられるとともに、空気遮断弁２３はマニホー
ルドブロツク３４内に収容されてボルト３５によ
り締付け固定され、さらにアキユムレータ２２お
よび各圧力スイツチ２０，２１，２４，２５，２
６，２７もマニホールドブロツク３６を介してボ
ルト３７により締付け固定されている。 Further, each of the control devices described above is detachably attached to the hydraulic oil passage housing 30. That is, the MTV 11, LOV 12, and RTV 13 are attached to the hydraulic oil passage housing 30 via a manifold block 33 that is tightened and fixed with bolts 32, and the air cutoff valve 23 is housed in a manifold block 34 and is tightened and fixed with bolts 35. Furthermore, the accumulator 22 and each pressure switch 20, 21, 24, 25, 2
6 and 27 are also tightened and fixed with bolts 37 via a manifold block 36.
そして、各作動油通路３１内を清掃する場合に
は、まず、ボルト３２，３５および３７を外して
マニホールドブロツク３３，３４および３６を取
外し、これら各マニホールドブロツク３３，３
４，３６の代りに清掃油通路ハウジング４０，４
１、および４２をボルト締めにより取付ける。こ
の清掃油通路ハウジング４０，４１，４２には、
上記作動油通路ハウジング３０に形成された作動
油通路３１を互いに連通せしめる清掃油通路４３
がそれぞれ形成されるとともに、この清掃油通路
４３の作動油通路３１との各連通路の途中に止め
弁４４が多数設けられている。 When cleaning the inside of each hydraulic oil passage 31, first remove bolts 32, 35, and 37, remove manifold blocks 33, 34, and 36, and then
Cleaning oil passage housing 40, 4 instead of 4, 36
1 and 42 are attached by tightening bolts. The cleaning oil passage housings 40, 41, 42 include
A cleaning oil passage 43 that allows the hydraulic oil passages 31 formed in the hydraulic oil passage housing 30 to communicate with each other
are formed respectively, and a large number of stop valves 44 are provided in the middle of each communication passage between the cleaning oil passage 43 and the hydraulic oil passage 31.
つぎに、油圧発生装置２（第１図参照）から清
掃油を作動油通路３１に送給して循環させ作動油
通路３１内の異物を取り除く。この場合、上記止
め弁４４を適宜開放、閉塞すれば、清掃する通路
を任意に選定することができる。 Next, cleaning oil is supplied from the hydraulic pressure generator 2 (see FIG. 1) to the hydraulic oil passage 31 and circulated to remove foreign matter in the hydraulic oil passage 31. In this case, by opening and closing the stop valve 44 as appropriate, the passage to be cleaned can be arbitrarily selected.
このようなオイルフラツシングによる作動油通
路３１の清掃が終了した後、清掃油通路ハウジン
グ４０，４１，４２を取外し、再び各制御装置の
マニホールドブロツク３３，３４，３６を作動油
通路ハウジング３０に取付ける。これにより清掃
作業が完了される。 After cleaning of the hydraulic oil passage 31 by such oil flushing is completed, the cleaning oil passage housings 40, 41, and 42 are removed, and the manifold blocks 33, 34, and 36 of each control device are reattached to the hydraulic oil passage housing 30. . This completes the cleaning work.
〔発明の効果〕
以上述べたように本発明による蒸気タービン制
御装置の油通路清掃方法は、各制御機器に作動油
を導く作動油通路を形成してなる作動油通路ハウ
ジングに各制御機器を着脱自在に取付けておき、
油通路清掃時には、各制御機器内に異物が混入し
ないように各制御機器を作動油通路ハウジングか
ら一旦取外し、その代りに各作動油通路を連通せ
しめる清掃油通路を備えた清掃油通路ハウジング
を作動油通路ハウジングに取付けた上でオイルフ
ラツシングを行うようにしたから、油通路の清掃
時に制御機器内に異物が混入することを完全に防
止することができ、制御機器の誤動作を回避する
ことができるとともに、油通路の全体を極めて良
好に清掃することができる。[Effects of the Invention] As described above, the method for cleaning an oil passage of a steam turbine control device according to the present invention is such that each control device is attached to and detached from a hydraulic oil passage housing formed with a hydraulic oil passage that guides hydraulic oil to each control device. Install it freely,
When cleaning the oil passages, each control device is temporarily removed from the hydraulic oil passage housing to prevent foreign matter from getting into each control device, and instead a cleaning oil passage housing equipped with a cleaning oil passage that connects each hydraulic oil passage is operated. Since the oil flushing is performed after being installed in the oil passage housing, it is possible to completely prevent foreign matter from entering the control equipment when cleaning the oil passage, and to avoid malfunctions of the control equipment. At the same time, the entire oil passage can be cleaned extremely well.
第１図は一般の火力発電プラントの蒸気タービ
ン制御装置の一つである保安装置の系統説明図、
第２図はこの保安装置の各要素関係を表した系統
説明図、第３図は従来の保安装置の配管系統を表
した説明図、第４図は本発明を実施するための保
安装置を表した配管系統説明図、第５図は本発明
の実施過程を示す配管系統説明図である。
１……保安装置、２……油圧発生装置、５……
蒸気弁、１１，１２，１３，１５，２０，２１，
２２，２３，２４，２５，２６，２７……制御機
器、３０……作動油通路ハウジング、３１……作
動油通路、３２，３５，３７……ボルト、３３，
３４，３６……マニホールドブロツク。
Figure 1 is a system diagram of a safety device, which is one of the steam turbine control devices of a general thermal power plant.
Fig. 2 is a system explanatory diagram showing the relationship between each element of this safety device, Fig. 3 is an explanatory diagram showing the piping system of the conventional safety device, and Fig. 4 is a diagram showing the safety device for implementing the present invention. FIG. 5 is an explanatory diagram of a piping system showing the implementation process of the present invention. 1... Safety device, 2... Hydraulic pressure generator, 5...
Steam valve, 11, 12, 13, 15, 20, 21,
22, 23, 24, 25, 26, 27... Control equipment, 30... Hydraulic oil passage housing, 31... Hydraulic oil passage, 32, 35, 37... Bolt, 33,
34, 36... Manifold block.
Claims (1)
ービン制御機器へ導く作動油通路に清掃油を流し
て該作動油通路内を清掃するようにした蒸気ター
ビン制御装置の油通路清掃方法において；各制御
機器に作動油を導く作動油通路を形成してなる作
動油通路ハウジングの各油通路出口部に上記各制
御機器を着脱自在に取り付けておき、油通路清掃
時には、各制御機器を一旦取外し、その位置に各
作動油通路どうしを互いに連通せしめる清掃油通
路を備えてなる清掃油通路ハウジングを取り付
け、その後清掃油を作動油通路内に供給、循環さ
せて作動油通路内の清掃を行うようにしたことを
特徴とする蒸気タービン制御装置の油通路清掃方
法。1. In an oil passage cleaning method for a steam turbine control device in which the inside of the hydraulic oil passage is cleaned by flowing cleaning oil into a hydraulic oil passage that guides hydraulic oil supplied from a hydraulic pressure generating device to a steam turbine control device; Each of the above-mentioned control devices is removably attached to each oil passage outlet of a hydraulic oil passage housing that forms a hydraulic oil passage that guides hydraulic oil to the control equipment, and when cleaning the oil passage, each control device is temporarily removed. A cleaning oil passage housing comprising cleaning oil passages that connect the hydraulic oil passages with each other is installed at that position, and cleaning oil is then supplied and circulated within the hydraulic oil passages to clean the inside of the hydraulic oil passages. A method for cleaning an oil passage of a steam turbine control device, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58246494A JPS60138207A (en) | 1983-12-27 | 1983-12-27 | Method of cleaning oil passage of steam turbine controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58246494A JPS60138207A (en) | 1983-12-27 | 1983-12-27 | Method of cleaning oil passage of steam turbine controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60138207A JPS60138207A (en) | 1985-07-22 |
| JPH0214522B2 true JPH0214522B2 (en) | 1990-04-09 |
Family
ID=17149231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58246494A Granted JPS60138207A (en) | 1983-12-27 | 1983-12-27 | Method of cleaning oil passage of steam turbine controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60138207A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016022423A (en) | 2014-07-18 | 2016-02-08 | 三菱重工業株式会社 | Aircraft hydraulic fluid pipe wash device and aircraft hydraulic fluid pipe wash method |
-
1983
- 1983-12-27 JP JP58246494A patent/JPS60138207A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60138207A (en) | 1985-07-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |