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JP5010974B2 - Water hammer control device - Google Patents
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JP5010974B2 - Water hammer control device - Google Patents

Water hammer control device Download PDF

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Publication number
JP5010974B2
JP5010974B2 JP2007120488A JP2007120488A JP5010974B2 JP 5010974 B2 JP5010974 B2 JP 5010974B2 JP 2007120488 A JP2007120488 A JP 2007120488A JP 2007120488 A JP2007120488 A JP 2007120488A JP 5010974 B2 JP5010974 B2 JP 5010974B2
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Prior art keywords
water hammer
water
turbine
bypass
rupture disk
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JP2008274871A (en
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祐治 兼森
博之 井上
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Torishima Pump Manufacturing Co Ltd
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Torishima Pump Manufacturing Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/20Hydro energy

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  • Hydraulic Turbines (AREA)

Description

本発明は水撃抑制装置に関する。詳細には、本発明は、管路に水車を介設した発電システム等における水撃作用(ウォーターハンマー)の抑制に関する。   The present invention relates to a water hammer suppression device. Specifically, the present invention relates to suppression of a water hammer effect (water hammer) in a power generation system or the like in which a water turbine is interposed in a pipeline.

従来、管路中に水車を介設した発電システム等において、水車の前後を接続するバイパス管路を設け、かつこのバイパス管路に逆潮流防止、二次圧力制御等のための弁を介設した構成が知られている(例えば、特許文献1〜4参照)。この種の発電システムでは、水車と接続された発電機が事故等で系統から切り離れて単独運転となった際に、回転数上昇に伴って水車への流入量が急激に抑制され、その結果水撃作用が発生するおそれがある。しかし、バイパス管路に弁を介設した構成では、水撃作用を効果的に抑制できない。また、水撃発生を事後に確認することが容易でない。さらに、水撃の発生頻度が極めて低い場合は、水撃抑制のためにサージタンク、エアチャンバ等の比較的大型でコストのかかる設備を設けることは現実的でない。   Conventionally, in a power generation system with a turbine installed in the pipeline, a bypass pipeline connecting the front and rear of the turbine is provided, and a valve for preventing reverse power flow, secondary pressure control, etc. is installed in the bypass pipeline. The structure which did is known (for example, refer patent documents 1-4). In this type of power generation system, when the generator connected to the water turbine is disconnected from the system due to an accident and becomes independent operation, the amount of water flowing into the water turbine is drastically suppressed as the rotational speed increases. Water hammer effect may occur. However, the configuration in which a valve is interposed in the bypass line cannot effectively suppress the water hammer effect. Moreover, it is not easy to confirm the occurrence of water hammer after the fact. Furthermore, when the frequency of water hammer occurrence is extremely low, it is not realistic to provide relatively large and expensive equipment such as a surge tank and an air chamber for water hammer suppression.

特開2007−16637号公報JP 2007-16637 A 特開2006−29201号公報JP 2006-29201 A 特開2006−83758号公報JP 2006-83758 A 特開2000−352369号公報JP 2000-352369 A

本発明は、管路に水車を介設した発電システム等の水力設備において水撃作用を効果的に抑制し、かつ水撃発生を事後に容易に確認できる小型化かつ低コストの水撃抑制装置を提供することを課題とする。   The present invention is a downsized and low-cost water hammer control device that effectively suppresses water hammer action in a hydropower facility such as a power generation system having a water turbine in a pipeline and can easily check the occurrence of water hammer after the fact. It is an issue to provide.

本発明は、発電用のインライン水車を介設した主管路を有する水力設備における水撃抑制装置であって、前記主管路の前記インライン水車の前後を接続するバイパス管路と、前記バイパス管路に介設されたラプチャーディスクとを備える水撃抑制装置を提供する。 The present invention is a water hammer suppression device in a hydraulic power plant having a main pipeline with an inline turbine for power generation, the bypass pipeline connecting the front and rear of the inline turbine of the main pipeline, and the bypass pipeline Provided is a water hammer suppression device including an interposed rupture disk.

主管路のインライン水車入口側の圧力がラプチャーディスクの破裂圧力を上回ると、ラプチャーディスクが直ちに破裂し、主管路を流れる水の大部分はバイパス管路を通り水車を迂回する。その結果、水撃作用を効果的に抑制できる。水撃が発生した場合には、ラプチャーディスクが破裂するので、ラプチャーディスクの破裂の有無を確認するだけで水撃発生を事後に簡単に確認できる。また、本発明の水撃抑制装置は、サージタンク、エアチャンバ等の比較的大型の設備を設ける必要がないので、小型かつ低コストである。 When the pressure on the inlet side of the inline turbine in the main pipe exceeds the burst pressure of the rupture disk, the rupture disk immediately bursts, and most of the water flowing through the main pipe passes through the bypass pipe and bypasses the turbine. As a result, the water hammer effect can be effectively suppressed. If a water hammer occurs, the rupture disc will rupture, so it can be easily confirmed after the fact just by checking the presence or absence of the rupture disc. In addition, the water hammer suppression device of the present invention does not require a relatively large facility such as a surge tank or an air chamber, and is therefore small and low cost.

次に、添付図面を参照して本発明の実施形態を詳細に説明する。   Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

図1は、本発明の実施形態にかかる水撃抑制装置1を備える発電システム(水力設備)2を示す。この発電システム2は、主管路3に介設されたインライン水車4を備える。インライン水車4は図示しない発電機に機械的に接続され、発電機は系統に対して電気的に接続されている。また、主管路3のインライン水車4の入口4a側には、流量調整弁5が介設されている。この流量調整弁5はインライン水車4への流入水量を調整する機能がある。また、流量調整弁5は主管路3を遮断することができる。   FIG. 1 shows a power generation system (hydraulic facility) 2 including a water hammer suppression device 1 according to an embodiment of the present invention. The power generation system 2 includes an in-line water turbine 4 interposed in the main pipeline 3. The inline turbine 4 is mechanically connected to a generator (not shown), and the generator is electrically connected to the system. Further, a flow rate adjusting valve 5 is interposed on the inlet line 4a side of the inline turbine 4 in the main pipeline 3. The flow rate adjusting valve 5 has a function of adjusting the amount of water flowing into the inline turbine 4. Further, the flow rate adjusting valve 5 can block the main pipeline 3.

水撃抑制装置1は、バイパス管路6とラプチャーディスク7を備える。バイパス管路6は、主管路3のインライン水車4の入口4a側(流量調整弁5よりもインライン水車4側)と、主管路3のインライン水車4の出口4b側を接続している。ラプチャーディスク7はバイパス管路6に介設されている。さらに、バイパス管路6には、ラプチャーディスク7よりも下流側(バイパス管路6とインライン水車4の出口4b側の主管路3との接続部分側)に、常開の仕切弁8が介設されている。ラプチャーディスク7はJIS B8226に規定された破裂板式安全装置であり、設定された圧力(設定圧力)で破裂する。   The water hammer suppression device 1 includes a bypass pipe 6 and a rupture disk 7. The bypass pipeline 6 connects the inlet 4 a side of the inline turbine 4 of the main pipeline 3 (the inline turbine 4 side of the flow rate adjusting valve 5) and the outlet 4 b side of the inline turbine 4 of the main pipeline 3. The rupture disk 7 is interposed in the bypass pipe 6. Further, the bypass pipe 6 is provided with a normally open gate valve 8 on the downstream side of the rupture disk 7 (on the side of the connection part between the bypass pipe 6 and the main pipe 3 on the outlet 4b side of the inline turbine 4). Has been. The rupture disk 7 is a rupture disc type safety device defined in JIS B8226, and ruptures at a set pressure (set pressure).

通常時は、主管路3のみを通って水が流れインライン水車4を通過する。バイパス管路6には、主管路3からの分岐位置(バイパス管路6とインライン水車4の入口4a側の主管路3との接続位置)からラプチャーディスク7まで水が存在しており、主管路3の高圧側と同様の圧力がラプチャーディスク7に作用している。なお、仕切弁8は開弁状態である。   In normal times, water flows only through the main pipeline 3 and passes through the inline turbine 4. In the bypass line 6, water exists from the branch position from the main line 3 (connection position between the bypass line 6 and the main line 3 on the inlet 4 a side of the inline turbine 4) to the rupture disk 7. The same pressure as that of the high pressure side 3 is applied to the rupture disk 7. The gate valve 8 is in an open state.

系統事故時等の発電機の回転数上昇に伴ってインライン水車4への流入量が抑制されると、ラプチャーディスク7に作用する圧力が上昇する。ラプチャーディスク7に作用する圧力が前述の設定圧力に達するとラプチャーディスク7が破裂し、バイパス管路6が開放される。バイパス管路6が開放されると、主管路3を流れる水の大部分はバイパス管路6を通りインライン水車4を迂回する。その結果、水撃作用を抑制できる。換言すれば、ラプチャーディスク7の破裂によるバイパス管路6の開放によって水撃の高圧を低圧側に逃がすことで、水撃作用が抑制される。   When the amount of inflow into the in-line turbine 4 is suppressed with the increase in the rotational speed of the generator at the time of a system fault or the like, the pressure acting on the rupture disk 7 increases. When the pressure acting on the rupture disk 7 reaches the set pressure, the rupture disk 7 is ruptured and the bypass pipe 6 is opened. When the bypass line 6 is opened, most of the water flowing through the main line 3 passes through the bypass line 6 and bypasses the inline turbine 4. As a result, the water hammer effect can be suppressed. In other words, the water hammer action is suppressed by releasing the high pressure of the water hammer to the low pressure side by opening the bypass conduit 6 due to the rupture of the rupture disk 7.

ラプチャーディスク7は設定圧力に達すると直ちに破裂する。換言すれば、ラプチャーディスク7は圧力上昇に対する応答性が極めて良好である。また、開放されたバイパス管路6を通る水は、ラプチャーディスク7と開弁状態の仕切弁8を通過するが、これらはいずれも流体抵抗が小さい。従って、いったんバイパス管路6が開放されると、前述のように主管路3の水の大部分はバイパス管路6を通る。これらの点で、本実施形態の水撃抑制装置1は効果的に高圧を逃がして水撃作用を抑制できる。また、ラプチャーディスク7が破裂した際にも、水はバイパス管路6を通ってインライン水車4を迂回するだけであるので、外部に水が漏れることがない。   The rupture disk 7 bursts as soon as the set pressure is reached. In other words, the rupture disk 7 has very good response to pressure increase. Further, the water passing through the opened bypass pipe 6 passes through the rupture disk 7 and the gate valve 8 in the opened state, both of which have low fluid resistance. Therefore, once the bypass line 6 is opened, most of the water in the main line 3 passes through the bypass line 6 as described above. In these respects, the water hammer suppression device 1 of the present embodiment can effectively release the high pressure and suppress the water hammer action. Further, even when the rupture disk 7 is ruptured, the water simply bypasses the in-line water turbine 4 through the bypass pipe 6, so that the water does not leak to the outside.

水撃が発生した場合には、ラプチャーディスク7が破裂するので、ラプチャーディスク7の破裂の有無を確認するだけで水撃発生を事後に簡単に確認できる。破裂したラプチャーディスク7を交換する際には、仕切弁8及び流量調整弁5を閉弁してバイパス管路6を主管路3から遮断すればよい。   When a water hammer occurs, the rupture disc 7 is ruptured, so that the occurrence of water hammer can be easily confirmed after the fact only by confirming whether or not the rupture disc 7 is ruptured. When replacing the ruptured rupture disk 7, the gate valve 8 and the flow rate adjusting valve 5 may be closed to shut off the bypass line 6 from the main line 3.

本実施形態の水撃抑制装置1はバイパス管路6、ラプチャーディスク7、及び仕切弁8で構成されており、サージタンク、エアチャンバ等を設ける場合と比較して、小型で狭い場所にも設置可能であると共に、設置に要するコストも低い。さらに、既存の発電システムに対して最小限の改造で、本実施形態の水撃抑制装置1を追加できる。一般に水撃発生の頻度は極めて低いので、本実施形態のような小型で低コストの水撃抑制装置1は、発電システム2における水撃抑制の現実的な手段として極めて有効である。   The water hammer suppression device 1 of the present embodiment is composed of a bypass pipe 6, a rupture disk 7, and a gate valve 8, and is installed in a small and narrow place as compared with a case where a surge tank, an air chamber, etc. are provided. It is possible and the cost for installation is low. Furthermore, the water hammer suppression device 1 of the present embodiment can be added with minimal modifications to the existing power generation system. In general, since the frequency of water hammer occurrence is extremely low, the small and low-cost water hammer control device 1 as in the present embodiment is extremely effective as a practical means for water hammer control in the power generation system 2.

本発明の実施形態にかかる水撃抑制装置を備える発電システムの模式図。The schematic diagram of a power generation system provided with the water hammer suppression apparatus concerning embodiment of this invention.

符号の説明Explanation of symbols

1 水撃抑制装置
2 発電システム(水力設備)
3 主管路
4 インライン水車
4a 入口
4b 出口
5 流量調整弁
6 バイパス管路
7 ラプチャーディスク
8 仕切弁
1 Water hammer control device 2 Power generation system (hydropower equipment)
3 Main Pipeline 4 Inline Water Turbine 4a Inlet 4b Outlet 5 Flow Control Valve 6 Bypass Pipeline 7 Rupture Disc 8 Gate Valve

Claims (1)

発電用のインライン水車を介設した主管路を有する水力設備における水撃抑制装置であって、
前記主管路の前記インライン水車の前後を接続するバイパス管路と、
前記バイパス管路に介設されたラプチャーディスクと
を備える水撃抑制装置。
A water hammer suppression device in a hydropower facility having a main pipeline with an inline turbine for power generation ,
A bypass line connecting the front and rear of the inline turbine of the main line;
A water hammer suppression device comprising: a rupture disk interposed in the bypass conduit.
JP2007120488A 2007-05-01 2007-05-01 Water hammer control device Expired - Fee Related JP5010974B2 (en)

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JP2007120488A JP5010974B2 (en) 2007-05-01 2007-05-01 Water hammer control device

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JP2007120488A JP5010974B2 (en) 2007-05-01 2007-05-01 Water hammer control device

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JP5010974B2 true JP5010974B2 (en) 2012-08-29

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
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
KR101722073B1 (en) * 2015-09-18 2017-03-31 플로우테크 주식회사 Water piping system having function of alleviating slaming of check valve
CN109653930B (en) * 2018-12-10 2020-06-09 河海大学 A system and method for testing the efficiency of a hydraulic turbine using the water hammer of a straight water diversion pipeline
CN109372680B (en) * 2018-12-10 2020-06-09 河海大学 Water turbine efficiency testing system and method utilizing water hammer of bent water diversion pipeline
CN113307450B (en) * 2021-05-27 2023-04-18 公安县佳源水务有限公司 Diversion system in sewage treatment system
JP7384942B2 (en) * 2022-01-14 2023-11-21 中外炉工業株式会社 rupture disc device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54160936A (en) * 1978-06-09 1979-12-20 Mitsubishi Heavy Ind Ltd Small hydroelectric generating station
JPS60152069U (en) * 1984-03-21 1985-10-09 富士電機株式会社 Valve turbine runner boss pressurization system protection device
JPS60194181U (en) * 1984-06-04 1985-12-24 株式会社日立製作所 Automatic protection device for penstock pipelines
JPS6345568Y2 (en) * 1984-11-30 1988-11-25
JPS6473174A (en) * 1987-09-16 1989-03-17 Mitsubishi Electric Corp Output limiting device for water wheel
JP2000352369A (en) * 1999-06-10 2000-12-19 Mitsubishi Electric Corp Waterway of hydroelectric power plant and control device therefor
JP4274743B2 (en) * 2002-05-27 2009-06-10 関西電力株式会社 Hydroelectric power generation equipment
JP2007016637A (en) * 2005-07-06 2007-01-25 Kubota Corp Hydroelectric power generation method and apparatus

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