JP2924454B2 - Sediment accumulation prevention device in bearing cooling water tank - Google Patents
Sediment accumulation prevention device in bearing cooling water tankInfo
- Publication number
- JP2924454B2 JP2924454B2 JP14653192A JP14653192A JP2924454B2 JP 2924454 B2 JP2924454 B2 JP 2924454B2 JP 14653192 A JP14653192 A JP 14653192A JP 14653192 A JP14653192 A JP 14653192A JP 2924454 B2 JP2924454 B2 JP 2924454B2
- Authority
- JP
- Japan
- Prior art keywords
- cooling water
- water tank
- bearing
- cooling
- tank
- 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
Landscapes
- Mounting Of Bearings Or Others (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、河川水を冷却水とし
て使用する水車軸受の冷却水槽内の土砂堆積を防止する
土砂堆積防止装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for preventing sediment accumulation in a cooling water tank of a water turbine bearing using river water as cooling water.
【０００２】[0002]
【従来の技術】水車の軸受あるいは軸受油槽には、軸受
を直接水で冷却するための水槽もしくは軸受潤滑油を冷
却するための冷却水槽が設けられる。図３は従来の潤滑
油を冷却する冷却水槽を備えた軸受冷却装置の断面図で
ある。図示しないランナを結合した主軸１は、主軸１と
一体構造のカラー１ａを備え、このカラー１ａを支持す
る主軸受２を軸受支え３で支持している。主軸受２は２
つ割り構造でランナをボルト締めで結合し、軸受支え３
により形成された油槽７に浸っている。主軸受２の上部
は軸受カバー４で被われ、軸受カバー４にねじ６で取り
付けたパッキン押さえ５を主軸１に押し付け、油槽７か
らの油のミストをシールしている。軸受カバー４には点
検用カバー８が取り付けられ、内部から点検できるよう
になっている。油槽７の外側には、油槽７内部の潤滑油
を水で冷却するための冷却水槽９が取り付けられてい
る。油槽７および冷却水槽９の内部には、冷却効率を上
げるため各々フィン３ａ，９ａが取り付けられている。2. Description of the Related Art A bearing or a bearing oil tank of a water turbine is provided with a water tank for directly cooling a bearing with water or a cooling water tank for cooling bearing lubricating oil. FIG. 3 is a sectional view of a conventional bearing cooling device provided with a cooling water tank for cooling lubricating oil. The main shaft 1 to which a runner (not shown) is connected has a collar 1a integral with the main shaft 1, and a main bearing 2 supporting the collar 1a is supported by a bearing support 3. Main bearing 2 is 2
With a split structure, runners are connected by bolts, and bearing supports 3
Immersed in an oil tank 7 formed by The upper portion of the main bearing 2 is covered with a bearing cover 4, and a packing retainer 5 attached to the bearing cover 4 with a screw 6 is pressed against the main shaft 1 to seal oil mist from an oil tank 7. An inspection cover 8 is attached to the bearing cover 4 so that inspection can be performed from the inside. A cooling water tank 9 for cooling the lubricating oil inside the oil tank 7 with water is attached outside the oil tank 7. Fins 3a and 9a are attached to the inside of the oil tank 7 and the cooling water tank 9 in order to increase the cooling efficiency.
【０００３】図４は図３のIV−IV断面図である。冷却水
槽９は油槽７の回りに沿って配置され、放射状に取り付
けられた複数のフィン９ａを備え、水車のカバーから冷
却水を取り出し、給水管１０ａにより冷却水槽９の下側
から冷却水を供給し、冷却水槽９の上側から排水管１０
ａにより排水している。FIG. 4 is a sectional view taken along line IV-IV of FIG. The cooling water tank 9 is arranged along the oil tank 7 and has a plurality of fins 9a radially attached thereto. Cooling water is taken out from the cover of the water turbine and supplied from the lower side of the cooling water tank 9 by a water supply pipe 10a. And a drain pipe 10 from above the cooling water tank 9.
The water is drained by a.
【０００４】[0004]
【発明が解決しようとする課題】従来の水車軸受の冷却
構造では、油槽のまわりに配置された冷却水槽に、水車
カバーから冷却水を導いて流通させ、水圧が低いので冷
却水槽内の水流が遅く、しかも冷却水槽内にフィンを放
射状に取り付けているので水が滞留して、冷却水槽の下
部に冷却水中の土砂が堆積し、対流面積が減って冷却水
槽の冷却効率が低下し、軸受温度が上昇する欠点があっ
た。このため、冷却水は効果な濾過装置を設けて、冷却
水中の土砂を取り除いてから冷却水槽へ給水し、冷却水
槽中に土砂が堆積しないようにする必要がある。In the conventional cooling structure of a water turbine bearing, cooling water is guided from a water turbine cover to a cooling water tank arranged around an oil tank, and flows therethrough. Since the water pressure is low, the water flow in the cooling water tank is reduced. Since the fins are mounted radially in the cooling water tank, water stays there, sediment in the cooling water accumulates at the bottom of the cooling water tank, the convection area decreases, the cooling efficiency of the cooling water tank decreases, and the bearing temperature decreases. Had the disadvantage of rising. For this reason, it is necessary to provide an effective filtration device for the cooling water, remove the earth and sand in the cooling water, and then supply the water to the cooling water tank so that the earth and sand do not accumulate in the cooling water tank.
【０００５】この発明は、濾過装置を通さずに土砂が含
まれたままの冷却水を用いても、軸受の冷却水槽内に土
砂が堆積しないようにした軸受冷却水槽内の土砂堆積防
止装置を提供することを目的とする。The present invention provides an apparatus for preventing sediment from accumulating in a bearing cooling water tank so that sediment does not accumulate in a cooling water tank of a bearing even if cooling water containing sediment is used without passing through a filtering device. The purpose is to provide.
【０００６】[0006]
【課題を解決するための手段】軸受油槽のまわりに冷却
水槽を備えた軸受において、前記冷却水槽の下部に水平
方向に開口するノズルを設け、水圧鉄管から導かれた高
圧の水を前記冷却ノズルから噴射させてジェット噴流に
より前記冷却水槽内の冷却水を攪拌し、土砂を前記冷却
水とともに前記冷却水槽から排出することによって、上
記目的を達成する。In a bearing provided with a cooling water tank around a bearing oil tank, a nozzle that opens horizontally is provided below the cooling water tank, and high-pressure water guided from a penstock is used to cool the cooling nozzle. The above object is achieved by stirring the cooling water in the cooling water tank by jetting from the cooling water tank and discharging earth and sand from the cooling water tank together with the cooling water.
【０００７】また、ノズルは冷却水槽内の給水管と排水
管との中間付近に取り付ければ、冷却水中の土砂を攪拌
させる上に好適である。[0007] Further, it is preferable to install the nozzle near the middle between the water supply pipe and the drain pipe in the cooling water tank in order to stir the earth and sand in the cooling water.
【０００８】[0008]
【作用】この発明においては、水圧鉄管から導かれた高
圧の水を冷却水槽内にノズルから水平方向に噴射させ、
このノズルから噴射されるジェット噴流により冷却水槽
内の冷却水を攪拌し、土砂を冷却水と混合させて排出す
るので、冷却水の滞留がなくなり土砂が冷却水槽内に堆
積することはない。In the present invention, high-pressure water guided from a penstock is injected horizontally from a nozzle into a cooling water tank,
The cooling water in the cooling water tank is stirred by the jet jet injected from the nozzle, and the earth and sand are mixed with the cooling water and discharged, so that the cooling water does not stay and the earth and sand do not accumulate in the cooling water tank.
【０００９】また、ノズルを冷却水槽内の給水管と排水
管との中間付近に取り付けたので、給水管の付近に吐出
された土砂は、直ちに冷却水槽内で攪拌され、土砂は冷
却水とともに排出される。In addition, since the nozzle is mounted near the middle of the water supply pipe and the drain pipe in the cooling water tank, the sediment discharged near the water supply pipe is immediately stirred in the cooling water tank, and the sediment is discharged together with the cooling water. Is done.
【００１０】[0010]
【実施例】図１はこの発明の実施例による軸受冷却水槽
内の土砂対流防止装置を備えた水車軸受冷却装置の断面
図である。図１において、図３と同じ部位は同じ符号を
付してある。図示しないランナを結合した主軸１は、主
軸１と一体構造のカラー１ａを備え、このカラー１ａを
支持する主軸受２を軸受支え３で支持している。主軸受
２は２つ割り構造でフランジをボルトで締めて結合し、
軸受支え３により形成された油槽７に浸っている。油槽
７の外側には油槽７の内部の潤滑油を水で冷却するため
の冷却水槽９が取り付けられている。水車のカバーから
冷却水を取り出し、給水管１０ａにより冷却水槽９の下
側から冷却水を供給し、冷却水槽９の上側から排水管１
０ａにより排水している。FIG. 1 is a sectional view of a water turbine bearing cooling device provided with an earth and sand convection preventing device in a bearing cooling water tank according to an embodiment of the present invention. 1, the same parts as those in FIG. 3 are denoted by the same reference numerals. The main shaft 1 to which a runner (not shown) is connected has a collar 1a integral with the main shaft 1, and a main bearing 2 supporting the collar 1a is supported by a bearing support 3. The main bearing 2 is divided into two parts and the flanges are bolted together and connected.
It is immersed in an oil tank 7 formed by the bearing support 3. A cooling water tank 9 for cooling the lubricating oil inside the oil tank 7 with water is attached outside the oil tank 7. The cooling water is taken out from the cover of the water turbine, the cooling water is supplied from the lower side of the cooling water tank 9 by the water supply pipe 10a, and the drain pipe 1 is
Water is drained by 0a.
【００１１】この発明の実施例による土砂堆積防止装置
は、冷却水槽９の下部に水平方向に開口するノズル１１
を設け、水圧鉄管から配管１２を経て導かれた高圧の水
をノズル１１から噴射させて、このノズル１１から噴射
されるジェット噴流により、冷却水槽９内の冷却水を攪
拌し、冷却水中の土砂を混合させる。ノズル１１は冷却
水槽９内に１本または２本設ける。図２は図１のII−II
断面図である。図２において、図４と同じ部位は同じ符
号を付してある。ノズル１１は、冷却水槽９内の給水管
１０ａと排水管１０ｂとの中間付近に取り付けられ、給
水管１０ａを通って供給される冷却水に混ざった土砂
は、ノズルから噴射されるジェット噴流により冷却水槽
９内で直ちに攪拌される。冷却水槽９内の土砂を含んだ
冷却水は、冷却水槽９内に滞留することなく排水管１０
ｂを通って排出されるので、冷却水槽９内に土砂の堆積
がなくなる。The apparatus for preventing sediment accumulation according to the embodiment of the present invention comprises a nozzle 11 that opens horizontally in a lower portion of a cooling water tank 9.
And high-pressure water guided from a penstock through a pipe 12 is jetted from a nozzle 11, and the jet water jetted from the nozzle 11 stirs the cooling water in the cooling water tank 9, causing the earth and sand in the cooling water to stir. Is mixed. One or two nozzles 11 are provided in the cooling water tank 9. FIG. 2 is II-II of FIG.
It is sectional drawing. 2, the same parts as those in FIG. 4 are denoted by the same reference numerals. The nozzle 11 is mounted near the middle of the water supply pipe 10a and the drainage pipe 10b in the cooling water tank 9, and the sediment mixed with the cooling water supplied through the water supply pipe 10a is cooled by a jet jet injected from the nozzle. The mixture is immediately stirred in the water tank 9. The cooling water containing the earth and sand in the cooling water tank 9 does not stay in the cooling water tank 9 and the drain pipe 10
Since the water is discharged through b, the accumulation of sediment in the cooling water tank 9 is eliminated.
【００１２】[0012]
【発明の効果】この発明によれば、水圧鉄管から導かれ
た高圧の水をノズルにより冷却水槽内に水平方向に噴射
させ、冷却水槽内の冷却水を攪拌して土砂を冷却水と混
合させて排出するようにしたので、冷却水中の土砂は排
水管から冷却水とともに排出される。濾過装置を通さず
に土砂が含まれたままの冷却水を用いても、冷却水槽内
に土砂が堆積することがないため、軸受の冷却効率を高
め、軸受を安定して冷却することができる。According to the present invention, high-pressure water guided from a penstock is injected horizontally by a nozzle into a cooling water tank, and the cooling water in the cooling water tank is agitated to mix earth and sand with the cooling water. The sediment in the cooling water is discharged together with the cooling water from the drain pipe. Even if the cooling water containing the earth and sand is used without passing through the filtration device, the earth and sand are not deposited in the cooling water tank, so that the cooling efficiency of the bearing can be increased and the bearing can be cooled stably. .
【図１】この発明の実施例による冷却水槽内の土砂堆積
防止装置を備えた軸受冷却装置の断面図である。FIG. 1 is a sectional view of a bearing cooling device provided with a device for preventing sediment accumulation in a cooling water tank according to an embodiment of the present invention.
【図２】図１のII−II断面図である。FIG. 2 is a sectional view taken along line II-II of FIG.
【図３】従来の軸受冷却装置の断面図である。FIG. 3 is a sectional view of a conventional bearing cooling device.
【図４】図３のIV−IV断面図である。FIG. 4 is a sectional view taken along line IV-IV of FIG. 3;
１ 主軸 １ａ カラー ２ 主軸受 ３ 軸受支え ７ 油槽 ９ 冷却水槽 １０ａ 給水管 １０ｂ 排水管 １１ ノズル １２ 配管 DESCRIPTION OF SYMBOLS 1 Main shaft 1a Collar 2 Main bearing 3 Bearing support 7 Oil tank 9 Cooling water tank 10a Water supply pipe 10b Drain pipe 11 Nozzle 12 Piping
Claims (2)
において、前記冷却水槽の下部に水平方向に開口するノ
ズルを設け、水圧鉄管から導かれた高圧の水を前記冷却
ノズルから噴射させてジェット噴流により前記冷却水槽
内の冷却水を攪拌し、土砂を前記冷却水とともに前記冷
却水槽から排出することを特徴とする軸受冷却水槽内の
土砂堆積防止装置。In a bearing provided with a cooling water tank around a bearing oil tank, a nozzle that opens horizontally in a lower part of the cooling water tank is provided, and high-pressure water guided from a penstock is injected from the cooling nozzle. An apparatus for preventing sediment accumulation in a bearing cooling water tank, wherein the cooling water in the cooling water tank is agitated by a jet jet, and earth and sand are discharged from the cooling water tank together with the cooling water.
防止装置において、ノズルは冷却水槽内の給水管と排水
管との中間付近に取り付けることを特徴とする軸受冷却
水槽内の土砂堆積防止装置。2. An apparatus for preventing sediment accumulation in a bearing cooling water tank according to claim 1, wherein the nozzle is mounted near an intermediate portion between a water supply pipe and a drain pipe in the cooling water tank. Prevention device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14653192A JP2924454B2 (en) | 1992-05-12 | 1992-05-12 | Sediment accumulation prevention device in bearing cooling water tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14653192A JP2924454B2 (en) | 1992-05-12 | 1992-05-12 | Sediment accumulation prevention device in bearing cooling water tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05312218A JPH05312218A (en) | 1993-11-22 |
| JP2924454B2 true JP2924454B2 (en) | 1999-07-26 |
Family
ID=15409755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14653192A Expired - Lifetime JP2924454B2 (en) | 1992-05-12 | 1992-05-12 | Sediment accumulation prevention device in bearing cooling water tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2924454B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062231B (en) * | 2013-01-21 | 2016-05-04 | 湖南崇德工业科技有限公司 | Sliding bearing oil-water cooler |
| KR102194121B1 (en) | 2017-06-21 | 2020-12-22 | 현대일렉트릭앤에너지시스템(주) | Cooling apparatus for thrust bearing |
| KR102194122B1 (en) * | 2019-03-29 | 2020-12-22 | 현대일렉트릭앤에너지시스템(주) | Cooling apparatus for thrust bearing |
-
1992
- 1992-05-12 JP JP14653192A patent/JP2924454B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05312218A (en) | 1993-11-22 |
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