CN103000003A - Bulb tubular water turbine generator set runner connecting bolt fracture warning device - Google Patents
Bulb tubular water turbine generator set runner connecting bolt fracture warning device Download PDFInfo
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- CN103000003A CN103000003A CN2012105894266A CN201210589426A CN103000003A CN 103000003 A CN103000003 A CN 103000003A CN 2012105894266 A CN2012105894266 A CN 2012105894266A CN 201210589426 A CN201210589426 A CN 201210589426A CN 103000003 A CN103000003 A CN 103000003A
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- fracture
- pipe
- tube
- runner
- disrumpent feelings
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- 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
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- Hydraulic Turbines (AREA)
- Control Of Water Turbines (AREA)
Abstract
A bulb tubular water turbine generator set runner connecting bolt fracture warning device is characterized in that two to three connecting bolt fracture warning devices provided by the invention are installed on a runner main shaft seal base plate opposite to a connecting bolt reference circle, a fracture tube in the warning device penetrates through the runner main shaft seal base plate and is supported by a support tube and a connecting seat of the fracture tube, inner threads are arranged in the support tube and the connecting seat, external threads are arranged at two ends of the fracture tube, a ring groove is arranged at one end of the fracture tube, the end of the fracture tube extends out of the support tube, and the other end of the fracture tube is connected with a control valve and a signal generator. The bulb tubular water turbine generator set runner connecting bolt fracture warning device can send a signal rapidly when a bolt fractures, so that monitoring staff can adopt response measures timely, and an accident is prevented from expanding.
Description
Technical field
The invention belongs to the bulb tubular hydraulic generating set runner coupling bolt breaking alarm device that is applied on hydroelectric power plant's rotary wheel of water turbine.
Background technology
In China, bulb tubular hydraulic generating set is more and more, because rotary wheel of water turbine and main shaft coupling bolt are subject to the resultant strain power effect of powerful stretching, compression, shearing, twisting resistance simultaneously, fracture accident appears easily, be free state behind the bolt fracture, bolt and nut will push the equipment such as maintenance sealing in the small space, main shaft seal, interior water guide cone and cause seal break-off, seal member will occur to leak in a large number after damaging, draining is untimely will to cause the water logging workshop accident, causes losing than large economy.
Guangxi Bai Longtan Installation in Plant 6 bulb tubular hydraulic generating sets, rated speed is 93.8r/min, No. 4 the bolt fracture leakage accident occurs respectively in March, 2006 and in October, 2010 in unit, all can not in time find economic loss.Can not in time pinpoint the problems for bolt fracture; the applicant studies and has invented a kind of bulb through-flow turbine runner coupling bolt breaking alarm device; after this warning device is installed; can in time send signal alarm during bolt fracture; the supervision personnel emergency measures such as in time taking shutdown behind the signal that receives the report for police service, a large amount of leakage accidents of avoiding break bolt percussion, extrusion damage seal member to cause occur.
Summary of the invention
The technical problem to be solved in the present invention is energy and alarm shutdown behind the bolt fracture, avoids the bulb tubular hydraulic generating set runner coupling bolt breaking alarm device that causes unit to leak in a large number because of bad seals.
The present invention solves the problems of the technologies described above with following technical scheme:
Bulb tubular hydraulic generating set runner coupling bolt breaking alarm device of the present invention on the runner main shaft seal foundation plate relative with coupling bolt calibration garden, is equipped with 2 to 3 coupling bolt breaking alarm devices of the present invention; Disrumpent feelings pipe in the warning device passes runner main shaft seal foundation plate, supported by the stay pipe of disrumpent feelings pipe and the Connection Block of disrumpent feelings pipe, stay pipe and Connection Block have internal thread, all there is external thread at the two ends of disrumpent feelings pipe, the end that disrumpent feelings pipe stretches out stay pipe is cecum, tube-surface near the end has annular groove, and the other end links to each other with by-pass valve control 7 and signal generator 8.
Runner main shaft seal foundation plate 5 is welded and fixed with stay pipe 4 and the Connection Block 6 of both sides.
Use bulb tubular hydraulic generating set runner coupling bolt breaking alarm device of the present invention, when bolt fracture, can send fast signal, thereby make the supervision personnel in time take counter-measure, avoid fault spread, this device has been applied to 6 units of Guangxi Bai Longtan power plant.
Description of drawings
Fig. 1 is bulb tubular hydraulic generating set runner coupling bolt breaking alarm device structural representation of the present invention.
Among the figure; The disrumpent feelings pipe 4-of 1-rotating part 2-coupling bolt 3-stay pipe 5-runner main shaft seal foundation plate 6-Connection Block 7-by-pass valve control 8-signal generator 9-monitor
Embodiment
Bulb tubular hydraulic generating set runner coupling bolt breaking alarm device of the present invention, the position relative with coupling bolt calibration garden on runner main shaft seal foundation plate is equipped with 2 to 3 runner of hydro-generating unit coupling bolt breaking alarm devices of the present invention; The disrumpent feelings pipe 3 of warning device vertically passes runner main shaft seal foundation plate 5, disrumpent feelings pipe 3 is by not having stay pipe 4 and the Connection Block 6 at the generator scene in the entry to support, runner main shaft seal foundation plate 5 is welded and fixed with stay pipe 4 and the Connection Block 6 of both sides, and stay pipe 4 and Connection Block 6 all have internal thread; The external thread that the two-end part of disrumpent feelings pipe 3 all has one section internal thread with stay pipe 4 and Connection Block 6 to be complementary: the end that disrumpent feelings pipe 3 stretches out stay pipe 4 is cecum, tube-surface near the end has 1-2 bar annular groove, and an end that stretches into the generator scene links to each other with by-pass valve control 7 and signal generator 8.
Before normal the production, mix up the gap of 2 of disrumpent feelings pipe 3 end faces and runner of hydro-generating unit coupling bolts, gap width is in the 10mm scope, and hydrogenerator can enter normal production.
In the production run, there is any one to damage fracture in the coupling bolt, under the effect of the rotation and vibration of unit, if the bolt head of fracture is longer, can deviate from screw, after deviating from the gap 10mm of distance greater than 2 of disrumpent feelings pipe 3 end faces and runner of hydro-generating unit coupling bolts, will bump breaks has the disrumpent feelings pipe 3 of weak groove; If the bolt head of fracture is shorter, bolt head can be thrown out of and fly in narrow space civil strike, will hit the disrumpent feelings pipe 3 in the same space, because the annular groove of disrumpent feelings pipe end makes the groove intensity step-down of disrumpent feelings pipe, the very fast brisement of disrumpent feelings pipe, outside water are namely on-the-spot through disrumpent feelings pipe inflow generator.If fail in time to find, will certainly cause the factory building at generator scene to be soaked, by forced-stopping machine.If but used bulb tubular hydraulic generating set runner coupling bolt breaking alarm device of the present invention, the monitor 9 of being located in the Control Room could in time be found, in time shuts down and processes, and has avoided factory building to be soaked.
Claims (2)
1. a bulb tubular hydraulic generating set runner coupling bolt breaking alarm device is characterized in that on the runner main shaft seal foundation plate relative with coupling bolt calibration garden 2 to 3 coupling bolt breaking alarm devices of the present invention being installed; Disrumpent feelings pipe in the warning device passes runner main shaft seal foundation plate, supported by the stay pipe of disrumpent feelings pipe and the Connection Block of disrumpent feelings pipe, stay pipe and Connection Block have internal thread, all there is external thread at the two ends of disrumpent feelings pipe, the end that disrumpent feelings pipe stretches out stay pipe is cecum, tube-surface near the end has annular groove, and the other end links to each other with by-pass valve control and signal generator.
2. bulb tubular hydraulic generating set runner coupling bolt breaking alarm device as claimed in claim 1 is characterized in that the stay pipe of runner main shaft seal foundation plate and both sides and Connection Block are welded and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210589426.6A CN103000003B (en) | 2012-12-29 | 2012-12-29 | Bulb tubular water turbine generator set runner connecting bolt fracture warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210589426.6A CN103000003B (en) | 2012-12-29 | 2012-12-29 | Bulb tubular water turbine generator set runner connecting bolt fracture warning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103000003A true CN103000003A (en) | 2013-03-27 |
| CN103000003B CN103000003B (en) | 2015-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210589426.6A Active CN103000003B (en) | 2012-12-29 | 2012-12-29 | Bulb tubular water turbine generator set runner connecting bolt fracture warning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103000003B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206332B (en) * | 2013-04-01 | 2015-08-12 | 武汉理工大学 | A kind of tubular turbine automatic cleaning apparatus |
| CN106815979A (en) * | 2017-04-07 | 2017-06-09 | 山西大唐国际云冈热电有限责任公司 | U-shaped fracture automatic alarm bolt |
| CN115331398A (en) * | 2022-07-05 | 2022-11-11 | 中国长江电力股份有限公司 | Intelligent monitoring device and method for bolt of volute entrance door of hydroelectric generating set |
Citations (4)
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|---|---|---|---|---|
| CN102466531A (en) * | 2010-11-10 | 2012-05-23 | 三一电气有限责任公司 | Bolt fault monitoring system and monitoring method thereof |
| US20120146450A1 (en) * | 2009-04-24 | 2012-06-14 | Alstom Hydro France | Electrical machine with a restraint system for a rotor winding head |
| CN102565192A (en) * | 2010-12-17 | 2012-07-11 | 华东电力试验研究院有限公司 | Detecting system for bolt of hydraulic generator and detecting method of detecting system |
| CN203055104U (en) * | 2012-12-29 | 2013-07-10 | 广西桂冠电力股份有限公司大化水力发电总厂 | Connected-bolt fracture alarm apparatus for rotation wheel of bulb-tubular water-turbine generator unit |
-
2012
- 2012-12-29 CN CN201210589426.6A patent/CN103000003B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120146450A1 (en) * | 2009-04-24 | 2012-06-14 | Alstom Hydro France | Electrical machine with a restraint system for a rotor winding head |
| CN102466531A (en) * | 2010-11-10 | 2012-05-23 | 三一电气有限责任公司 | Bolt fault monitoring system and monitoring method thereof |
| CN102565192A (en) * | 2010-12-17 | 2012-07-11 | 华东电力试验研究院有限公司 | Detecting system for bolt of hydraulic generator and detecting method of detecting system |
| CN203055104U (en) * | 2012-12-29 | 2013-07-10 | 广西桂冠电力股份有限公司大化水力发电总厂 | Connected-bolt fracture alarm apparatus for rotation wheel of bulb-tubular water-turbine generator unit |
Non-Patent Citations (3)
| Title |
|---|
| 刘国选: "《灯泡贯流式水轮发电机组运行与检修》", 30 June 2006, 中国水利水电出版社 * |
| 林立新: "灯泡式机组伸缩节螺栓断裂的原因分析及处理", 《人民珠江》 * |
| 陈松坚: "10MW灯泡式水轮机联轴螺栓断裂原因分析", 《大电机技术》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206332B (en) * | 2013-04-01 | 2015-08-12 | 武汉理工大学 | A kind of tubular turbine automatic cleaning apparatus |
| CN106815979A (en) * | 2017-04-07 | 2017-06-09 | 山西大唐国际云冈热电有限责任公司 | U-shaped fracture automatic alarm bolt |
| CN115331398A (en) * | 2022-07-05 | 2022-11-11 | 中国长江电力股份有限公司 | Intelligent monitoring device and method for bolt of volute entrance door of hydroelectric generating set |
| CN115331398B (en) * | 2022-07-05 | 2023-05-16 | 中国长江电力股份有限公司 | Intelligent monitoring device and method for volute inlet bolt of hydroelectric generating set |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103000003B (en) | 2015-06-17 |
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