CN203055104U - Connected-bolt fracture alarm apparatus for rotation wheel of bulb-tubular water-turbine generator unit - Google Patents

Connected-bolt fracture alarm apparatus for rotation wheel of bulb-tubular water-turbine generator unit Download PDF

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Publication number
CN203055104U
CN203055104U CN2012207461999U CN201220746199U CN203055104U CN 203055104 U CN203055104 U CN 203055104U CN 2012207461999 U CN2012207461999 U CN 2012207461999U CN 201220746199 U CN201220746199 U CN 201220746199U CN 203055104 U CN203055104 U CN 203055104U
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China
Prior art keywords
fracture
pipe
bolt
tube
disrumpent feelings
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Application number
CN2012207461999U
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Chinese (zh)
Inventor
骆振业
李文
陈南文
沈帆
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Dahua General Hydropower Plant Of Guangxi Guiguan Electric Power Co Ltd
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Dahua General Hydropower Plant Of Guangxi Guiguan Electric Power Co Ltd
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Application filed by Dahua General Hydropower Plant Of Guangxi Guiguan Electric Power Co Ltd filed Critical Dahua General Hydropower Plant Of Guangxi Guiguan Electric Power Co Ltd
Priority to CN2012207461999U priority Critical patent/CN203055104U/en
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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

Abstract

A connected-bolt fracture alarm apparatus for a rotation wheel of a bulb-tubular water-turbine generator unit is characterized in that two to three connected-bolt fracture alarm apparatuses provided by the utility model are arranged on a seal basic plate of a rotation-wheel main shaft opposite to a reference circle of a connected bolt, a fracture tube in the alarm apparatus penetrates through the seal basic plate of the rotation-wheel main shaft 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, outer threads are mounted on two ends of the fracture tube, an annular groove is arranged on 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. According to the connected-bolt fracture alarm apparatus for the rotation wheel of the bulb-tubular water-turbine generator unit, when the bolt fractures, the connected-bolt fracture alarm apparatus for the rotation wheel can rapidly emit signals, so that monitoring personnel can adopt response measures timely, and an accident is prevented from expanding.

Description

Scaled bulb tubular hydraulic generator group runner coupling bolt fracture warning device
Technical field
The utility model belongs to the scaled bulb tubular hydraulic generator group runner coupling bolt fracture warning device that is applied on hydroelectric power plant's rotary wheel of water turbine.
Background technology
In China, the scaled bulb tubular hydraulic generator group is more and more, because rotary wheel of water turbine and main shaft coupling bolt are subjected 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 equipment such as maintenance sealing in the small space, main shaft seal, interior water guide cone and cause seal break-off, seal member will take place to leak in a large number after damaging, draining is untimely will to cause water logging factory building accident, causes losing than large economy.
Guangxi Bai Longtan Installation in Plant 6 desk lamps bubbles tubular-turbine generator group, rated speed is 93.8r/min, No. 4 the bolt fracture leakage accident takes place respectively in March, 2006 and in October, 2010 in unit, all can not in time find, causes economic loss.Can not in time pinpoint the problems at bolt fracture; the applicant studies and has invented a kind of bulb through-flow turbine runner coupling bolt fracture warning 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 take place.
The utility model content
The technical problems to be solved in the utility model is the shutdown of in time reporting to the police behind the bolt fracture, avoids the scaled bulb tubular hydraulic generator group runner coupling bolt fracture warning device that causes unit to leak in a large number because of bad seals.
The utility model solves the problems of the technologies described above with following technical scheme:
Scaled bulb tubular hydraulic generator group runner coupling bolt fracture warning device of the present utility model on the runner main shaft seal foundation plate relative with coupling bolt calibration garden, is equipped with 2 to 3 coupling bolt fracture warning devices; 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 fixing with stay pipe 4 and Connection Block 6 welding of both sides.
Use scaled bulb tubular hydraulic generator group runner coupling bolt fracture warning device of the present utility model, when bolt fracture, can send signal fast, thereby make the supervision personnel in time take counter-measure, avoid accident to enlarge, this device has been applied to 6 units of Guangxi Bai Longtan power plant.
Description of drawings
Fig. 1 is scaled bulb tubular hydraulic generator group runner coupling bolt fracture warning device structural representation of the present utility model.
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
Scaled bulb tubular hydraulic generator group runner coupling bolt fracture warning device of the present utility model, 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 bolts fracture warning 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 fixing with stay pipe 4 and Connection Block 6 welding 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 the ordinary 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 ordinary production.
In the production run, there is any one to damage fracture in the coupling bolt, under the effect of the rotation of unit and vibration, 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 is namely through disrumpent feelings pipe inflow generator scene.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 scaled bulb tubular hydraulic generator group runner coupling bolt fracture warning device of the present invention, the monitor of being located in the Control Room 9 could in time be found, in time shuts down and handles, and has avoided factory building to be soaked.

Claims (2)

1. a scaled bulb tubular hydraulic generator group runner coupling bolt fracture warning device is characterized in that on the runner main shaft seal foundation plate relative with coupling bolt calibration garden, and 2 to 3 coupling bolt fracture warning devices are 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. scaled bulb tubular hydraulic generator group runner coupling bolt fracture warning 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 welding are fixing.
CN2012207461999U 2012-12-29 2012-12-29 Connected-bolt fracture alarm apparatus for rotation wheel of bulb-tubular water-turbine generator unit Active CN203055104U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012207461999U CN203055104U (en) 2012-12-29 2012-12-29 Connected-bolt fracture alarm apparatus for rotation wheel of bulb-tubular water-turbine generator unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012207461999U CN203055104U (en) 2012-12-29 2012-12-29 Connected-bolt fracture alarm apparatus for rotation wheel of bulb-tubular water-turbine generator unit

Publications (1)

Publication Number Publication Date
CN203055104U true CN203055104U (en) 2013-07-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012207461999U Active CN203055104U (en) 2012-12-29 2012-12-29 Connected-bolt fracture alarm apparatus for rotation wheel of bulb-tubular water-turbine generator unit

Country Status (1)

Country Link
CN (1) CN203055104U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103000003A (en) * 2012-12-29 2013-03-27 广西桂冠电力股份有限公司大化水力发电总厂 Bulb tubular water turbine generator set runner connecting bolt fracture warning device
CN104851246A (en) * 2015-05-26 2015-08-19 重庆大学 Device used to monitor bolt fracture or looseness

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103000003A (en) * 2012-12-29 2013-03-27 广西桂冠电力股份有限公司大化水力发电总厂 Bulb tubular water turbine generator set runner connecting bolt fracture warning device
CN103000003B (en) * 2012-12-29 2015-06-17 广西桂冠电力股份有限公司大化水力发电总厂 Bulb tubular water turbine generator set runner connecting bolt fracture warning device
CN104851246A (en) * 2015-05-26 2015-08-19 重庆大学 Device used to monitor bolt fracture or looseness
CN104851246B (en) * 2015-05-26 2017-03-22 重庆大学 Device used to monitor bolt fracture or looseness

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