CN102072069B - Integral type dustless brake device of hydroelectric generating set - Google Patents
Integral type dustless brake device of hydroelectric generating set Download PDFInfo
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- CN102072069B CN102072069B CN2011100305627A CN201110030562A CN102072069B CN 102072069 B CN102072069 B CN 102072069B CN 2011100305627 A CN2011100305627 A CN 2011100305627A CN 201110030562 A CN201110030562 A CN 201110030562A CN 102072069 B CN102072069 B CN 102072069B
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- dust
- brake
- brake device
- recovering powder
- integral type
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- 239000000428 dust Substances 0.000 claims abstract description 64
- 239000000843 powder Substances 0.000 claims description 34
- 238000001914 filtration Methods 0.000 claims description 17
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract 5
- 230000007547 defect Effects 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000013327 media filtration Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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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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Abstract
The invention relates to an integral type dustless brake device of a hydroelectric generating set, which comprises a brake device and a dust recovery device, wherein an ash damper is fixedly connected onto the edge of a brake supporting plate of the brake device. The integral type dustless brake device is characterized by mainly comprising the ash damper, an air filter and a dust collection box which are sequentially arranged from top to bottom, the dust recovery device is arranged beside the brake device, and the total height of the dust recovery device is less than the distance between the foundation bottom of the brake device and a brake ring. The integral type dustless brake device provided by the invention has the beneficial effects that the brake device is provided with the dust recovery device to form an integral connection, so that defects caused by separation of the brake device and the dust recovery device are overcome. The dustless brake device has a compact structure, and problems that the dust absorption effect is poor, pipe arrangement is difficult, and occupied space is large are solved.
Description
Technical field
The invention belongs to the hydraulic generator unit, relate in particular to a kind of integral type dustless brake device of hydraulic generator unit.
Background technique
In hydraulic turbine generator, the generator amature rotary inertia is very large, and startup and shutdown are very frequent, and in order when shutting down, generator set to be stopped very soon, generator is provided with braking device.Several breaks of circumference uniform distribution adopt the low-pressure compressed air operation, and when shutting down, pressurized air is squeezed in break, and brake plunger rises, and the braking flashboard contact generation with brake hoop on being fixed on generator amature and rubs, and makes the rotor brake application stoping.Therefore in this braking process, because the generator amature rotary inertia is very large, for making the rotor brake application stoping that (is generally 2min) at the appointed time, braking flashboard and brake hoop will occur to rub consumingly.Fricative heat raises brake hoop and stopping brake plate temperature, braking simultaneously flashboard and brake hoop will be worn, produce brake dust, clean out as untimely collection, will be taken away by the cooling-air that generator circulates, be deposited on iron core and stator and rotor coil surface, pollute coil, increase flowing resistance, reduce insulating property.In generator in early days, owing to not designing dust collecting system, stator and rotor are seriously polluted, affect unit and normally move, and even have an accident.For this reason, the power station has to send someone often go cleaning to safeguard, has increased the workload of unit regular maintenance.Along with the development of power station automation, general all being provided with break is by pipeline the dust exhaust apparatus that separated type is connected in the generator of design in recent years.The effect of this dust exhaust apparatus is the dust that produces when assembling also absorption brake braking by instruction, removes after filtering dust, and clean air is expelled back in atmosphere.Dust exhaust apparatus generally is made of four parts: collection/dust shield 8, pipeline 7, device for recovering powder 9 and control gear.Various forms of collection/dust shields are to be centered around the break surrounding, form a sealing or semi-enclosed space, and brake dust is enclosed in this space can't disperse.Pipeline is the passage that connects collection/dust shield and device for recovering powder; Produce negative pressure after the rotation of blower fan in device for recovering powder, make sealing or the hemi-closure space of collection/dust shield parcel form a swirling eddy by pipeline, the drive brake dust with the air-flow dispatch to blower fan and filtration system, thereby realize the collecting function of dust.Control gear is to control startup and the operation of device for recovering powder by receiving instruction that the power station central control chamber sends.Traditional dust exhaust apparatus and the mounting type of break are seen Fig. 5.Its dust shield is the large cover of Integral sealing, with whole break all cover get up, only in the gap of the 5mm that has an appointment near the part of brake hoop, this gap is both as the personal distance of rotating part and stationary part, again as the suction port of air.Under the effect of negative pressure, air is inhaled into thus from outside to inside, carries the dust that braking process produces, and through piping, is pumped to device for recovering powder, and dust by media filtration, is discharged clean air in device for recovering powder.In used in the power station, the break of this structure and dust exhaust apparatus using effect were unsatisfactory.The 9th phase in 2004, " Tohoku Electric Power technology " author Zhao Xiangdong, Wang Liyu disclosed a kind of novel Brake Dust Collecting System for Turbine Generator, were the little cover dust collecting system of follow-up-type, and basic structure forms as shown in Figure 6.Compare with traditional large hood configuration, the difference of the little cover dust collecting system of follow-up-type maximum just is that the structure of dust shield is different, it adopts a very little dust shield, be fixed on the outer rim of break keep plate, except in face of one side of brake hoop moving direction, other three limits all are furnished with the ash gear, consist of " U " shape dust shield structure, the opening of " U " word is the direction that rotary component head-on comes, the air that comes along with rotary component just in time from then on opening enter dust shield, add the suction function of device for recovering powder, dust is sucked away.The bottom of " U " font is accumulation area, and the air that is connected with device for recovering powder by pipeline herein carries dust and collects herein, is drawn onto device for recovering powder.The ash gear is high temperature resistant hairbrush, high temperature resistant hairbrush is fixed on three edges of break keep plate, rise with brake plunger when unit is braked and fall, the ash gear contacts with brake hoop when rising, air sucks from the gap location of " U " shape dust shield opening and hairbrush, hairbrush can also with under the dust brush that sticks on brake hoop, prevent the excessive of dust.The dust collecting system advantage of this structure has been the volume-diminished of dust shield, and rate of air sucked in required is corresponding to diminish, the also corresponding reduction of capacity of adapted device for recovering powder.But integrally-built dust collecting system forms the dust suction unit by a plurality of breaks by multiple-way duct and device for recovering powder, then forms Brake Dust Collecting System for Turbine by many groups dust suction unit.Dust shield is connected with device for recovering powder by pipeline and is the long-range connection of separated type.Pipeline is long in actual use, pipeline to prolong journey loss large, the air quantity decay is very large, causes actual effect poor, and pipeline prolongs journey loss air quantity and can't accurately calculate, so will mate the blower fan of relatively high power in device for recovering powder; Due to the narrow space of generator set, long pipeline and a plurality of device for recovering powder take up room excessive simultaneously.Power plant demands developing a kind of hydraulic turbine generator braking dust collecting system that the space is little, pick-up performance is better that takes up an area urgently.
Summary of the invention
The object of the invention is to overcome the deficiency of above-mentioned technology, and a kind of integral type dustless brake device of hydraulic generator unit is provided, brake gear is integral formula with device for recovering powder and is connected, and has solved pick-up performance poor, the piping layout difficulty is taken up an area the large difficult problem in space.
The present invention for achieving the above object, by the following technical solutions: a kind of integral type dustless brake device of hydraulic generator unit, comprise braking device and device for recovering powder, be connected with the ash gear on the braking support plate edge of braking device, it is characterized in that: described device for recovering powder mainly is made of the ash gear, air filtering core and the dust-collecting box that set gradually from top to bottom, described device for recovering powder is positioned at the braking device side, the device for recovering powder total height less than the braking device bottom of foundation to the distance between brake hoop.
Described device for recovering powder mainly by self-priming dust dust-collecting box housing, be placed in fireproof plate, air filtering core and blower fan in self-priming dust dust-collecting box housing, described self-priming dust dust-collecting box housing top intake grill is placed on the tangent direction of rotary component rotary motion trace, and be positioned at below hairbrush ash gear, fireproof plate is connected successively from top to bottom with air filtering core and is placed in self-priming dust dust-collecting box housing, and blower fan is placed in the air filtering core rear.
Beneficial effect: self is provided with device for recovering powder break, is in one-piece connection, and has overcome break and has separated the shortcoming of generation with device for recovering powder.The compact structure of dust-free braking device has solved pick-up performance poor, and the piping layout difficulty is taken up an area the large difficult problem in space.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the plan view of Fig. 1;
Fig. 3 is that the A of Fig. 1 is to view;
Fig. 4 is the integral type dustless brake device structural representation with telescopic wind scoop;
Fig. 5 is the structural representation of traditional Brake Dust Collecting System for Turbine;
Fig. 6 is the structural representation of the little cover dust collecting system of follow-up-type.
In figure: 1, break, 2, self-priming device for recovering powder housing, 3, air filtering core, 4, hairbrush ash gear, 5, blower fan, 6, fireproof plate, 7, pipeline, 8, dust shield, 9, device for recovering powder, 10, wind scoop, 11, intake grill, 12, exhaust outlet.
Embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with accompanying drawing and preferred embodiment.As Figure 1-3, a kind of integral type dustless brake device of hydraulic generator unit, comprise braking device 1 and device for recovering powder 9, be connected with ash gear 4 on the braking support plate edge of braking device, the ash gear is the heatproof hairbrush, described device for recovering powder mainly is made of the ash gear, air filtering core and the dust-collecting box that set gradually from top to bottom, and described device for recovering powder is positioned at the braking device side, the device for recovering powder total height less than the braking device bottom of foundation to the distance between brake hoop.See Fig. 4 for details, be connected with the telescopic wind scoop that connects self-priming dust dust-collecting box housing below described ash gear.Described device for recovering powder mainly by self-priming dust dust-collecting box housing 2, be placed in fireproof plate 6, air filtering core 3 and blower fan 5 in self-priming dust dust-collecting box housing, described self-priming dust dust-collecting box housing top intake grill is placed on the tangent direction of rotary component rotary motion trace, and be positioned at below hairbrush ash gear, fireproof plate is connected successively from top to bottom with air filtering core and is placed in self-priming dust dust-collecting box housing, and blower fan is placed in the air filtering core rear.The intake grill 11 of described device for recovering powder 9 docks with ash gear on the keep plate edge, and the exhaust outlet 12 of device for recovering powder is provided with blower fan 5.Blower fan is placed in the air filtering core rear end.Dust absorption fan selects the small-sized axial flow fan of market sale to get final product.
Working procedure:
Hairbrush ash gear is fixed on three edges of break keep plate, rise with brake plunger when unit is braked and fall, hairbrush ash gear contacts with the brake hoop that rotates when rising, dust stops to fall because of hairbrush, slip over fireproof plate under the suction function that blower fan produces, wherein heavier dust falls into dust-collecting box, floats on simultaneously airbornely to enter filter core than fine dusts, after filtering clean air is discharged.
The above is only preferred embodiment of the present invention, is not structure of the present invention is done any pro forma restriction.Every foundation technical spirit of the present invention all still belongs in the scope of technological scheme of the present invention any simple modification, equivalent variations and modification that above embodiment does.
Claims (1)
1. the integral type dustless brake device of a hydraulic generator unit, comprise braking device and device for recovering powder, wherein is connected with the ash gear on the braking support plate edge of braking device; It is characterized in that: described device for recovering powder is positioned at the braking device side, its total height less than the described braking device bottom of foundation to the distance between brake hoop; This device for recovering powder mainly is comprised of self-priming dust dust-collecting box housing, fireproof plate, air filtering core and blower fan, and wherein fireproof plate, air filtering core and blower fan are placed in described self-priming dust dust-collecting box housing; Described self-priming dust dust-collecting box housing top intake grill is placed on the tangent direction of rotary component rotary motion trace, and is positioned at described ash gear below, and fireproof plate is connected from top to bottom successively with air filtering core, and blower fan is placed in the air filtering core rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100305627A CN102072069B (en) | 2011-01-28 | 2011-01-28 | Integral type dustless brake device of hydroelectric generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100305627A CN102072069B (en) | 2011-01-28 | 2011-01-28 | Integral type dustless brake device of hydroelectric generating set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102072069A CN102072069A (en) | 2011-05-25 |
| CN102072069B true CN102072069B (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100305627A Active CN102072069B (en) | 2011-01-28 | 2011-01-28 | Integral type dustless brake device of hydroelectric generating set |
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| CN (1) | CN102072069B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3073157A1 (en) * | 2017-11-06 | 2019-05-10 | Sogefi Filtration | FILTERING DEVICE AND USE OF THE DEVICE FOR SEPARATING AND COLLECTING BRAKING DUST |
| CN112869635A (en) * | 2019-11-29 | 2021-06-01 | 燕成祥 | Cleaning robot with fan brake device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2886110Y (en) * | 2006-04-04 | 2007-04-04 | 李春莹 | Novel brake for hydroelectric generating set |
| CN200976529Y (en) * | 2005-12-17 | 2007-11-14 | 吴雳鸣 | Full-automatic carbon powder purification apparatus |
| CN202012440U (en) * | 2011-01-28 | 2011-10-19 | 天津市发电技术设备有限公司 | Integral dust-free braking device for hydroelectric generating set |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3060003B2 (en) * | 1996-04-30 | 2000-07-04 | 農林水産省農業工学研究所長 | Dust removal device for water channel by flowing water energy |
| JP2009068439A (en) * | 2007-09-14 | 2009-04-02 | Csc Labo:Kk | Dust removal water wheel |
| KR100883932B1 (en) * | 2008-09-17 | 2009-02-18 | 주식회사 와텍 | Brake system of water wheel generator with dust collector |
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2011
- 2011-01-28 CN CN2011100305627A patent/CN102072069B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200976529Y (en) * | 2005-12-17 | 2007-11-14 | 吴雳鸣 | Full-automatic carbon powder purification apparatus |
| CN2886110Y (en) * | 2006-04-04 | 2007-04-04 | 李春莹 | Novel brake for hydroelectric generating set |
| CN202012440U (en) * | 2011-01-28 | 2011-10-19 | 天津市发电技术设备有限公司 | Integral dust-free braking device for hydroelectric generating set |
Non-Patent Citations (4)
| Title |
|---|
| JP特开2009-68439A 2009.04.02 |
| JP特开平9-296435A 1997.11.18 |
| 赵向东等."一种新型的水轮发电机制动器吸尘系统".《东北电力技术》.2004,(第9期),第41-42、45页. |
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| CN102072069A (en) | 2011-05-25 |
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