JPH045827B2 - - Google Patents
Info
- Publication number
- JPH045827B2 JPH045827B2 JP57136908A JP13690882A JPH045827B2 JP H045827 B2 JPH045827 B2 JP H045827B2 JP 57136908 A JP57136908 A JP 57136908A JP 13690882 A JP13690882 A JP 13690882A JP H045827 B2 JPH045827 B2 JP H045827B2
- Authority
- JP
- Japan
- Prior art keywords
- pump
- turbine
- surging
- opening
- amount
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 238000005086 pumping Methods 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000011017 operating method Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B15/00—Controlling
- F03B15/02—Controlling by varying liquid flow
- F03B15/04—Controlling by varying liquid flow of turbines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Water Turbines (AREA)
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は揚水発電所に使用するポンプ水車の運
転方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a method of operating a pump-turbine used in a pumped storage power plant.
一般に揚水発電所などにあつては、ポンプ水車
の揚水運転を行なう場合、水面押し下げを行い、
主機を起動し、排気、水圧確立を経た後、ガイド
ベーンを目標とする揚程の適正開度まで開動作し
て揚水運転を行なうようにしている。
Generally, in pumped storage power plants, etc., when pumping water from a pump turbine, the water surface is pushed down,
After starting the main engine, exhausting air, and establishing water pressure, the guide vanes are opened to the appropriate opening for the target lift to perform pumping operation.
上記のようにポンプ水車を用いて揚水運転を行
なう場合、揚水発電所は鉄管側にサージタンクを
有しているので、運転初期は上昇及び下降サージ
ングの発生によつてサージタンクの水位が一時的
に上下に動揺する。このため、第１図のポンプ特
性は図にも示す如く、揚水運転開始時にあつては
ポンプ水車はＢ点からC1点へと運転されるが、
上記した上昇サージング及び下降サージングの発
生に伴なつて揚程が変化する為、Ｂ点からD1点、
D1点からC3点、C3点からD2点、D2点からC2点…
…の如く図において徐々に振幅が小さくなるよう
に運転されることとなる。
When performing pumping operation using a pump-turbine as described above, the pumped storage power plant has a surge tank on the iron pipe side, so at the beginning of operation, the water level in the surge tank temporarily decreases due to rising and falling surging. sway up and down. Therefore, as shown in the figure, the pump characteristics in Figure 1 indicate that at the start of pumping operation, the pump-turbine is operated from point B to point C1 ;
Since the lift height changes with the occurrence of the above-mentioned upward surging and downward surging, from point B to point D,
D 1 point to C 3 points, C 3 points to D 2 points, D 2 points to C 2 points...
As shown in the figure, the operation is such that the amplitude gradually decreases.
そして、上昇サージングのため高揚程で過開度
状態にあるD1点付近においては第２図に示すよ
うに、ランナ１の入口側に二次流れ２が発生す
る。この二次流れ２は上昇サージングの都度徐々
に小さくはなるが周期的に発生し、第３図に示す
如くこの周期的な二次流れが周期的な騒音、振動
の原因となり、機器の安全運転上の阻害となつて
いる。 Then, as shown in FIG. 2, a secondary flow 2 is generated on the inlet side of the runner 1 near point D1, which is in an over-opening state at a high head due to upward surging. This secondary flow 2 gradually becomes smaller each time there is an upward surging, but it occurs periodically, and as shown in Figure 3, this periodic secondary flow causes periodic noise and vibration, allowing safe operation of equipment. This is becoming a hindrance to the above.
本発明は上述した従来のポンプ水車の運転にお
ける問題点を改善すべくなされたものであり、揚
水運転開始時における異常騒音や振動の発生を抑
制・低下し得るポンプ水車の運転方法を提供する
ことを目的とする。
The present invention has been made in order to improve the above-mentioned problems in operating the conventional pump-turbine, and provides a method of operating a pump-turbine that can suppress and reduce the occurrence of abnormal noise and vibration at the start of pumping operation. With the goal.
上記目的を達成すべく本発明に係るポンプ水車
の運転方法は、運転開始にあたつてポンプ水車の
ガイドベーンを目標揚程の適正開度よりも小さな
予め定めた開度まで開動作し、この開度を一旦固
定して運転し、次いで別設した鉄管側のサージン
グ量検出装置によつて所定のサージング量以下と
なつたことを検出した後、更にガイドベーンを開
動作して適正開度にするようにしたことを特徴と
している。
In order to achieve the above object, the method for operating a pump-turbine according to the present invention opens the guide vanes of the pump-turbine to a predetermined opening smaller than the appropriate opening for the target lift at the start of operation. Once the opening is fixed, the surging amount is detected by a separately installed surging amount detection device on the iron pipe side to indicate that the amount of surging is below the predetermined amount, and then the guide vane is further opened to achieve the proper opening. It is characterized by the fact that
以下に本発明の実施例を第１図に基づいて説明
する。
Embodiments of the present invention will be described below with reference to FIG.
先ず鉄管側にサージタンクを有するポンプ水車
を揚水運転するにあたつて、運転する揚程H0に
対応する適正開度A1よりも小さな予め定められ
た開度A2までガイドベーンを開動作する。そし
てこの開度A2を保持したまま運転する。 First, when operating a pump-turbine with a surge tank on the iron pipe side, the guide vane is opened to a predetermined opening A2 , which is smaller than the appropriate opening A1 corresponding to the operating head H0 . . Then, the operation is performed while maintaining this opening degree A2 .
すると、第１図の特性曲線においては、Ｂ点か
らE1点、E1点からF2点、F2点からE2点、E2点か
らF1点……の如く運転されるが、いずれも二次
流れを発生する領域にないので振動・騒音のない
静かな運転となる。 Then, in the characteristic curve shown in Figure 1, the operation is performed from point B to point E 1 , from point E 1 to point F 2 , from point F 2 to point E 2 , from point E 2 to point F 1 , etc. Since both are not in the area where secondary flow occurs, the operation is quiet with no vibration or noise.
次いで鉄管側のサージタンクに別設したサージ
ング量検出装置によつて所定のサージング量以下
になつたことを検出したら、再びガイドベーンを
開動作し適正開度A1に移行する。するとこのと
きは第４図にも示す如く、既に二次流れを発生せ
しめないサージング量となつているので異常騒
音、振動は発生しない。 Next, when a surging amount detection device installed separately in the surge tank on the iron pipe side detects that the surging amount has fallen below a predetermined amount, the guide vane is opened again to shift to the appropriate opening degree A1 . At this time, as shown in FIG. 4, the amount of surging has already reached such a level that no secondary flow is generated, so no abnormal noise or vibration occurs.
したがつて運転開始時から連続して異常騒音等
のない運転が行なえる。 Therefore, continuous operation without abnormal noise etc. can be performed from the start of operation.
以上の説明で明らかな如く、本発明のポンプ水
車の運転方法によれば、サージタンクのサージン
グ量が大きい揚水運転初期においてはガイドベー
ンの開度を目標揚程に対応する開度よりも小さく
して二次流れの発生を防ぎ、サージング量が二次
流れを発生しない量となつてから適正開度までガ
イドベーンを開動作せしめるようにしたので、揚
水運転開始から一貫して振動、騒音を抑制・低下
せしめた運転が可能となり、もつて機器の損傷等
を防止し、安全な運転ができる等多くの利点を有
する。
As is clear from the above explanation, according to the pump-turbine operating method of the present invention, the opening degree of the guide vane is made smaller than the opening degree corresponding to the target pumping height in the early stage of pumping operation when the amount of surging in the surge tank is large. By preventing the generation of secondary flow and opening the guide vane to the appropriate opening degree after the amount of surging reaches an amount that does not generate secondary flow, vibration and noise are consistently suppressed and noise is suppressed from the start of pumping operation. It has many advantages, such as being able to operate at a reduced temperature, preventing damage to equipment, and enabling safe operation.
第１図はポンプ水車の特性曲線図、第２図はラ
ンナ入口における二次流れを示す断面図、第３図
は従来の運転方法におけるガイドベーン開度、揚
程及び騒音・振動の発生の変化と運転時間との関
係を示すグラフ、第４図は本発明のポンプ水車の
運転方法を用いた場合の第３図と同様のグラフで
ある。
１……ランナ、２……二次流れ、H0……揚程、
A1……適正開度、A2……適正開度よりも小さな
予じめ定められた開度、Ｂ，C1，C2，C3，D1，
D2，E1，E2，F1，F2……ポンプ特性点。
Figure 1 is a characteristic curve diagram of a pump-turbine, Figure 2 is a sectional view showing secondary flow at the runner inlet, and Figure 3 is a diagram showing changes in guide vane opening, head, and noise/vibration generation in the conventional operating method. A graph showing the relationship with operating time, FIG. 4, is a graph similar to FIG. 3 when the pump-turbine operating method of the present invention is used. 1...Runner, 2...Secondary flow, H 0 ...Height,
A 1 ... Proper opening, A 2 ... Predetermined opening smaller than the proper opening, B, C 1 , C 2 , C 3 , D 1 ,
D 2 , E 1 , E 2 , F 1 , F 2 ... Pump characteristic points.
Claims (1)
揚水運転するに際して、先ずポンプ水車のガイド
ベーンを目標揚程の適正開度よりも予め定めた小
さな開度まで開動作し、この開度を一旦固定して
運転し、継いで別設したサージタンク内のサージ
ング量検出装置によつて二次流れを発生しない所
定のサージング量以下となつたことを検出した
後、更にガイドベーンを開動作して適正開度に移
行せしめるようにしたことを特徴とするポンプ水
車の運転方法。1 When pumping a pump-turbine with a surge tank on the iron pipe side, first open the guide vane of the pump-turbine to a predetermined opening smaller than the appropriate opening for the target pumping height, and then fix this opening once. After the operation is continued, the surging amount detection device in the surge tank installed separately detects that the surging amount is below a predetermined amount that does not generate secondary flow, and then the guide vane is further opened to determine the appropriate opening. A method of operating a pump-turbine, characterized in that the pump-turbine is caused to shift to
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57136908A JPS5928071A (en) | 1982-08-06 | 1982-08-06 | Operating method of pump water wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57136908A JPS5928071A (en) | 1982-08-06 | 1982-08-06 | Operating method of pump water wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5928071A JPS5928071A (en) | 1984-02-14 |
| JPH045827B2 true JPH045827B2 (en) | 1992-02-03 |
Family
ID=15186378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57136908A Granted JPS5928071A (en) | 1982-08-06 | 1982-08-06 | Operating method of pump water wheel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5928071A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4943850A (en) * | 1972-09-01 | 1974-04-25 |
-
1982
- 1982-08-06 JP JP57136908A patent/JPS5928071A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4943850A (en) * | 1972-09-01 | 1974-04-25 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5928071A (en) | 1984-02-14 |
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