JPS6032322Y2 - Marine fuel blending equipment - Google Patents
Marine fuel blending equipmentInfo
- Publication number
- JPS6032322Y2 JPS6032322Y2 JP6440177U JP6440177U JPS6032322Y2 JP S6032322 Y2 JPS6032322 Y2 JP S6032322Y2 JP 6440177 U JP6440177 U JP 6440177U JP 6440177 U JP6440177 U JP 6440177U JP S6032322 Y2 JPS6032322 Y2 JP S6032322Y2
- Authority
- JP
- Japan
- Prior art keywords
- turbine
- generator
- solenoid valve
- turbine rotor
- oil
- 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
Landscapes
- Braking Arrangements (AREA)
- Control Of Turbines (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Description
【考案の詳細な説明】
この考案は発電機の負荷遮断信号に応動してタービンロ
ータの回転に制動力を付勢し、過速度を防止する発電機
駆動用のタービンの過速度防止装置に関するものである
。[Detailed description of the invention] This invention relates to a generator-driven turbine overspeed prevention device that applies braking force to the rotation of the turbine rotor in response to a generator load cutoff signal to prevent overspeed. It is.
一般に、発電機駆動用のタービンの調速装置としては、
定格負荷を遮断したときに達する速度を非常調速装置の
作動速度未満に抑制することが要求される。In general, the speed governor of a turbine for driving a generator is
It is required to suppress the speed reached when the rated load is interrupted to less than the operating speed of the emergency governor.
ところが、特に回転部のＧＤ２（Ｇ、Ｄはそれぞれ回転
部の重量および直径）、つまり慣性モーメントの比較的
小さなタービンでは上記要求を満足させるための調速装
置は速度変化に対してより機敏な機能をもつことが要求
される。However, in order to satisfy the above requirements, especially for turbines with relatively small GD2 (G and D are the weight and diameter of the rotating part), that is, the moment of inertia of the rotating part, the governor has a function that is more agile in response to speed changes. It is required to have
通常、この要求を満たすためには、その程度によって調
速装置を油圧式から電気式に変更するかあるいは油圧式
のま１でも調速装置本体の応答を迅速化する構造に変更
したりしているが、前者においては調速装置が高価とな
り、後者においては応答速度を高めるために、油圧式調
速装置本体が敏感になり、速度変化の外乱に対しても過
敏に応答するいわゆるハンチングの現象が発生し易くな
って定格運転に支障をきたしているのが現状である。Normally, in order to meet this requirement, depending on the extent of the problem, the speed governor must be changed from a hydraulic type to an electric type, or even if it is a hydraulic type, the structure must be changed to speed up the response of the speed governor itself. However, in the former case, the speed governor is expensive, and in the latter, in order to increase the response speed, the hydraulic speed governor itself becomes sensitive, resulting in the so-called hunting phenomenon in which it responds too sensitively to disturbances in speed changes. Currently, this is becoming more likely to occur and is interfering with rated operation.
この考案は上記欠点を改善するために、発電機の負荷遮
断信号で電磁弁を開放してタービンロータに直結された
制動ファンに制動油を供給することによって、タービン
ロータの回転に制動力を付勢し、油圧式調速装置本体の
構造を変更することなく、タービンロータの過速度を防
止する発電機駆動用のタービンの過速度防止装置を提供
することを目的とする。In order to improve the above-mentioned drawbacks, this invention applies a braking force to the rotation of the turbine rotor by opening a solenoid valve in response to a load cutoff signal from the generator and supplying braking oil to the braking fan directly connected to the turbine rotor. It is an object of the present invention to provide an overspeed prevention device for a turbine for driving a generator, which prevents overspeed of a turbine rotor without changing the structure of the main body of the hydraulic speed governor.
以下、この考案の実施例をフロンタービンの過速度防止
装置について説明する。An embodiment of this invention will be described below regarding an overspeed prevention device for a front turbine.
フロン−１１またはフロン−１１４を作動媒体とするフ
ロンタービンにおいては、作動媒体の蒸気比容積（単位
重量当りの容積）が同一蒸気圧力のたとえば一般水蒸気
タービンに較べて１桁から２桁タービンにおける蒸気の
環状通路面積が小さくなり、その結果、回転部の重量Ｇ
および直径りが小さくなって、回転部の慣性モーメント
は同一蒸気圧力、同一出力のたとえば一般水蒸気タービ
ンに比べて１桁から２桁小さくなる。In a fluorocarbon turbine that uses Freon-11 or Freon-114 as a working medium, the steam specific volume (volume per unit weight) of the working medium is one to two orders of magnitude higher than, for example, a general steam turbine at the same steam pressure. The annular passage area becomes smaller, and as a result, the weight of the rotating part G
As the diameter becomes smaller, the moment of inertia of the rotating part becomes one to two orders of magnitude smaller than that of, for example, a general steam turbine with the same steam pressure and output.
このため、上述したようにこの調速装置には速度変化に
対してより機敏な機能が要求される。Therefore, as described above, this speed governor is required to have a more agile function in response to speed changes.
図において、１はフロンタービンで、フロンガス発生器
（図示せず）によりフロン液を加熱、蒸発させてフロン
ガスを発生させ、その作動媒体はタービン内部で断熱膨
張し、この断熱膨張時のエネルギがタービンロータ２を
回転させ、タービン軸３、カップリング４を介して発電
機５を回転駆動する。In the figure, reference numeral 1 indicates a fluorocarbon turbine. A fluorocarbon gas generator (not shown) heats and evaporates fluorocarbon liquid to generate fluorocarbon gas. The working medium expands adiabatically inside the turbine, and the energy from this adiabatic expansion is transferred to the turbine. The rotor 2 is rotated, and the generator 5 is rotationally driven via the turbine shaft 3 and the coupling 4.
６はタービンロータ２の軸３に直結された制動ファン、
７はこの制動ファン６に制動油ａを供給する給油装置で
、たとえば給油ポンプ８、オリフィス９およびアキュム
レータ１０からなる。6 is a braking fan directly connected to the shaft 3 of the turbine rotor 2;
Reference numeral 7 denotes an oil supply device for supplying brake oil a to the brake fan 6, which includes, for example, an oil supply pump 8, an orifice 9, and an accumulator 10.
この給油装置７と制動ファン６との間の給油管１１には
電磁弁１２が介挿され、この電磁弁１２は発電機５の負
荷遮断信号を受けて作動する励磁装置１３により励磁さ
れる。A solenoid valve 12 is interposed in a refueling pipe 11 between the refueling device 7 and the brake fan 6, and the solenoid valve 12 is excited by an excitation device 13 which is activated in response to a load cutoff signal from the generator 5.
なお、図中、１４は排油管、１５は蒸気流である。In addition, in the figure, 14 is an oil drain pipe, and 15 is a steam flow.
いま、タービン１の回転駆動によって、発電機５が回転
中、発電機負荷が遮断されると、その負荷遮断信号を受
けて励磁装置１３から電磁弁１２に励磁電流が供給され
、この電磁弁が瞬時に開かれる。Now, when the generator load is cut off while the generator 5 is rotating due to the rotational drive of the turbine 1, an exciting current is supplied from the excitation device 13 to the solenoid valve 12 in response to the load cutoff signal, and this solenoid valve Opens instantly.
これによって、アキュムレータ１０内の制動油ａが給油
管１１、電磁弁１２を通って制動ファン６に供給され、
タービンロータ２の回転に制動力を付勢する。As a result, the brake oil a in the accumulator 10 is supplied to the brake fan 6 through the oil supply pipe 11 and the solenoid valve 12.
A braking force is applied to the rotation of the turbine rotor 2.
この動作は油圧式調速装置による調速弁の弁閉動作に先
行するので、このロータ２の過速度がより効果的に防止
される。Since this operation precedes the closing operation of the speed governor valve by the hydraulic speed governor, overspeed of the rotor 2 is more effectively prevented.
この考案は上述したことから明らかなように、発電機駆
動用のフロンタービンに代表される回転部の慣性モーメ
ントの比較的小さなタービンにおいてその効果が特に顕
著であるが、発電機の負荷遮断信号で電磁弁を開放して
タービンロータに直結された制動ファンに制動油を供給
することにより、タービンロータの回転に制動力を付勢
し、従来の油圧式調速装置本体の構造を変更することな
く、タービンロータの過速度を防止することができ、し
かもその過速度防止装置は比較的構造が簡単で安価であ
り、応答速度も早く、油圧式調速装置本体のバンチング
現象の発生の危惧なく、定格運転を適確に行なえる利点
を有する。As is clear from the above, this idea is particularly effective in turbines with a relatively small moment of inertia of the rotating part, such as the front turbine for driving a generator, but the By opening the solenoid valve and supplying braking oil to the braking fan directly connected to the turbine rotor, braking force is applied to the rotation of the turbine rotor, without changing the structure of the conventional hydraulic governor. , it is possible to prevent overspeed of the turbine rotor, and the overspeed prevention device has a relatively simple structure, is inexpensive, has a fast response speed, and has no fear of bunching phenomenon in the main body of the hydraulic speed governor. It has the advantage of being able to perform rated operation accurately.
なお、この考案は、フロン−１１またはフロン−１１４
を作動媒体とするフロンタービンにおいてその実施例を
説明したが、一般流体を作動媒体とするタービンにおい
てもこの考案は十分に適用されうる。This invention is based on Freon-11 or Freon-114.
Although an embodiment has been described for a fluorocarbon turbine using a fluorocarbon gas as a working medium, this invention can also be fully applied to a turbine using a general fluid as a working medium.
特に、回転部の慣性モーメントの比較的小さなタービン
においてその効果が顕著である。This effect is particularly noticeable in turbines whose rotating parts have a relatively small moment of inertia.
図面はこの考案の一実施例をフロンタービンに適応した
タービンの過速度防止装置を示す概略系統図である。
１・・・・・・フロンタービン、２・・・・・・タービ
ンロータ、３・・・・・田−夕軸、５・・・・・・発電
機、６・・・・・・制動ファン、７・・・・・・給油装
置、１２・・・・・・電磁弁、１３・・・・・・励磁装
置。The drawing is a schematic system diagram showing a turbine overspeed prevention device in which an embodiment of this invention is applied to a fluorocarbon turbine. 1... Front turbine, 2... Turbine rotor, 3... Field-Yu shaft, 5... Generator, 6... Braking fan. , 7... Oil supply device, 12... Solenoid valve, 13... Excitation device.
Claims (1)
直結された制動ファンと、この制動ファンに制動油を供
給する給油装置と、この給油装置と上記制動ファンとの
間に設けられた電磁弁とこの電磁弁を発電機の負荷遮断
信号により励磁する励磁装置とを備え、発電機の負荷遮
断信号で上記電磁弁を励磁して開放し、上記制動ファン
に制動油を供給することによって、タービンロータの回
転に制動力を付勢し、このタービンロータの過速度を防
止することを特徴とする発電機駆動用のタービンの過速
度防止装置。In the turbine that drives the generator, there is a brake fan directly connected to the turbine rotor, an oil supply device that supplies brake oil to the brake fan, a solenoid valve provided between the oil supply device and the brake fan, and the solenoid valve. and an excitation device that excites the valve using a load cutoff signal from the generator, and the solenoid valve is energized and opened by the load cutoff signal from the generator to supply braking oil to the braking fan, thereby controlling the rotation of the turbine rotor. An overspeed prevention device for a turbine for driving a generator, characterized in that it applies braking force to prevent overspeed of the turbine rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6440177U JPS6032322Y2 (en) | 1977-05-18 | 1977-05-18 | Marine fuel blending equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6440177U JPS6032322Y2 (en) | 1977-05-18 | 1977-05-18 | Marine fuel blending equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS53159403U JPS53159403U (en) | 1978-12-14 |
| JPS6032322Y2 true JPS6032322Y2 (en) | 1985-09-27 |
Family
ID=28968480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6440177U Expired JPS6032322Y2 (en) | 1977-05-18 | 1977-05-18 | Marine fuel blending equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6032322Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047976A (en) * | 2014-06-04 | 2014-09-17 | 郑州磨料磨具磨削研究所有限公司 | Revolution machine as well as deceleration method and deceleration device thereof |
-
1977
- 1977-05-18 JP JP6440177U patent/JPS6032322Y2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047976A (en) * | 2014-06-04 | 2014-09-17 | 郑州磨料磨具磨削研究所有限公司 | Revolution machine as well as deceleration method and deceleration device thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS53159403U (en) | 1978-12-14 |
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