CN201406754Y - Drainage structure of underground powerhouse - Google Patents
Drainage structure of underground powerhouse Download PDFInfo
- Publication number
- CN201406754Y CN201406754Y CN2009201202043U CN200920120204U CN201406754Y CN 201406754 Y CN201406754 Y CN 201406754Y CN 2009201202043 U CN2009201202043 U CN 2009201202043U CN 200920120204 U CN200920120204 U CN 200920120204U CN 201406754 Y CN201406754 Y CN 201406754Y
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- drainage
- drainage system
- water pump
- valve
- operated valve
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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 utility model relates to a drainage structure of an underground powerhouse, and aims to enable reservoir water in a machine set to be closed in a drainage system all the time and pumped out from the powerhouse during maintenance by using a manner of combination of mechanical drainage and gravity drainage, and enable leakage water in the powerhouse to be drained out in an indirect manner. The technical scheme is as follows: maintenance water outlets of a maintenance drainage system is formed at the lower part of a draft tube of each generating set; each water outlet is connected with a closed drainage system (I) through a ball valve; the closed drainage system (I) is communicated with a drainage gallery via an outlet pipeline, and further communicated with a leakage collecting well though an inlet pipeline via an isolating valve; a leakage drainage system arranged at the lower part of the leakage collecting well is communicated with a leakage drainage and catchment gallery in the powerhouse; a closed drainage system (II) is arranged at the mouth of the leakage collecting well; and the water outlet of the closed drainage system (II) is connected with a drainage gallery arranged in a higher position of a mountain body via an outlet pipe. The drainage structure is suitable for water drainage of the underground powerhouse.
Description
Technical field
The utility model relates to a kind of discharge structure of underground power house.Be applicable to the draining of underground power house, as the underground power house in power station, the draining of underground structure etc.
Background technology
With the underground workshop is example, and flourish along with China's water power cause has a lot of huge power stations, pumped storage power plant etc. all to adopt the arrangement form of underground power house.Underground power house is because buried in underground, and the safe operation of its in-plant equipment is most important, and especially the drainage system of underground power house must be reliable, and this is the basic demand of underground power house equipment safety operation.In case water logging factory building accident occurs, direct/indirect loss of bringing is very heavy.Once water logging factory building accident occurred as domestic part power station, suffered heavy losses.As: November calendar year 2001 is in Xiang Hongdian power station, Anhui, 5#, 6# unit start back-to-back, the 6# unit drags in the process of 5# unit, and governor shuts down fast suddenly and causes water hammer pressure to rise, and the water ring draining valve breaks suddenly, underground power house is not surpassed generator floor by water logging, cause equipment such as generator motor not had by water logging fully,, call outside interim pumping equipment and draw water just to finish 5 days 5 nights water in the factory building is discharged by painstaking efforts, comprise processing such as equipment oven dry, cleaning, front and back amount to 27 days.Water logging factory building accident also appearred in other power stations such as Li Jiaxia, hall, green hill etc.For guaranteeing the safety of underground power station factory building draining, need to consider the higher drainage pattern of a kind of reliability.
Summary of the invention
The technical problems to be solved in the utility model is: a kind of discharge structure of underground power house is provided, is intended to the mode that combines by mechanical draining and free-draining, the reservoir water when making maintenance in the unit is enclosed in the drainage system all the time and pumps outside the factory; Percolating water in the factory is discharged outside the factory by indirect mode, guarantee that underground power house is not by water logging.
The technical scheme that the utility model adopted is: the discharge structure of underground power house, comprise drainage for overhaul system and seepage drainage system, it is characterized in that described drainage for overhaul system is provided with the drainage for overhaul mouth in the draft tube bottom of every generating set, each outfall is connected with the drainage system I of sealing by a ball valve, the drainage system I of this sealing is communicated with collector drain through outlet conduit, and the drainage system I of this sealing also is connected with the seepage collecting well through separation valve door by inlet duct; Described seepage drainage system is communicated with seepage draining charge for remittance gallery in the factory in the bottom of seepage collecting well, and the drainage system II of sealing being set at the seepage well head that catchments, the delivery port of the drainage system II of this sealing is connected to the collector drain that is located at the massif higher position through outlet pipe.
The drainage system I of described sealing comprises the dewatering installation that a pool-size is bigger, every cover dewatering installation comprises centrifugal water pump, by showing that stream signalling means, pressure regulator valve, concentric reducer and Chang Kai hand-operated valve are connected with outlet conduit, the other end of centrifugal water pump is connected with inlet duct by concentric reducer and Chang Kai hand-operated valve the one end successively; At described pressure regulator valve and show between the stream signalling means, show between stream signalling means and the centrifugal water pump and an end concentric reducer and often open and all be connected with instrument three-way cock and pressure meter between the hand-operated valve.
The drainage system I of described sealing also comprises the dewatering installation that a pool-size is less, every cover dewatering installation comprises centrifugal water pump, the one end is communicated with outlet conduit through Slow Close Valve and Chang Kai hand-operated valve successively, and the other end of centrifugal water pump is successively through showing that stream signalling means and Chang Kai hand-operated valve are connected with inlet duct; Described Slow Close Valve and often open between the hand-operated valve, between Slow Close Valve and the centrifugal water pump and centrifugal water pump and show between the stream signalling means and all be connected with instrument three-way cock and pressure meter.
Be connected to normally closed hand-operated valve between described outlet conduit and the inlet duct.
Be connected to pressure transmitter on the described inlet duct.
The drainage system II of described sealing is equipped with one group of deep well water pump, the port of export of every deep well water pump is successively through showing that stream signalling means, Slow Close Valve and Chang Kai hand-operated valve are connected to outlet pipe, and the other end of described deep well water pump is successively through showing the stream signalling means, often driving hand-operated valve, electromagnetic valve and often drive hand-operated valve with another and lubricate water with outside deep well water pump and be connected.
In the described seepage collecting well water level switch and level sensor are installed.
The port of export of every deep well water pump also is connected to instrument three-way cock and pressure meter.
The other end of described outlet pipe is connected to instrument three-way cock and pressure meter.
The beneficial effects of the utility model are: the utility model has been taken all factors into consideration drainage for overhaul system and seepage drainage system, by the drainage system of two sealings, when maintenance, the reservoir water that is deposited in the generating set all is enclosed in the drainage system and by the mode of mechanical draining on the one hand and extracts out outside the factory building respectively; The water that advances factory building for outside seepage at ordinary times then is pooled to these percolating waters in the collecting well earlier, the water in the collecting well is pumped in the collector drain of higher position by deep well water pump then, and the form with gravity flow drains into the safety area again.
Description of drawings
Fig. 1 is the system drawing of the utility model drainage for overhaul system.
Fig. 2 is the system drawing of the utility model seepage drainage system.
The specific embodiment
The present embodiment underground power house has four generating sets No. 1, No. 2, No. 3, No. 4, and drainage system has comprised drainage for overhaul system and seepage drainage system.
As shown in Figure 1, present embodiment drainage for overhaul system is provided with drainage for overhaul mouth 2 in the draft tube bottom of every generating set 1, each outfall is connected by the drainage system I of a ball valve 3 with sealing, the drainage system I of this sealing is communicated with collector drain 4 through outlet conduit 111, collector drain generally is located in the higher massif, makes water enter safety one band by the mode of flowing automatically.The drainage system I of this sealing also is connected with seepage collecting well 5 through separation valve door 22 by inlet duct 222.
The drainage system I of this example sealing comprises the bigger dewatering installation of two cover capacity, every cover dewatering installation comprises centrifugal water pump 6, by showing that stream signalling means 7, pressure regulator valve 8, concentric reducer 9 and Chang Kai hand-operated valve 10 are connected with outlet conduit 111, the other end of centrifugal water pump 6 is connected with inlet duct 222 by concentric reducer 9 and Chang Kai hand-operated valve 10 the one end successively; At described pressure regulator valve 8 and show between the stream signalling means 7, show between stream signalling means 7 and the centrifugal water pump 6 and an end concentric reducer 9 and often open and all be connected with instrument three-way cock 11 and pressure meter 12 between the hand-operated valve 10.
The drainage system I of this example sealing also comprises the less dewatering installation of two cover capacity, every cover dewatering installation comprises centrifugal water pump 6, the one end is communicated with outlet conduit 111 through Slow Close Valve 13 and Chang Kai hand-operated valve 10 successively, and the other end of centrifugal water pump 6 is successively through showing that stream signalling means 7 and Chang Kai hand-operated valve 10 are connected with inlet duct 222; Described Slow Close Valve 13 and often open between the hand-operated valve 10, between Slow Close Valve 13 and the centrifugal water pump 6 and centrifugal water pump 6 and show between the stream signalling means 7 and all be connected with instrument three-way cock 11 and pressure meter 12.
In the drainage for overhaul system, be connected to normally closed hand-operated valve 14 between described outlet conduit 111 and the inlet duct 222.On inlet duct 222, be connected to pressure transmitter 15.
Because the direct-connected drainage for overhaul mouth 2 of drainage pump pipeline makes the drainage for overhaul system directly link to each other with reservoir, has reduced draining intermediate link, and the reservoir water with big water gaging is controlled in the drainage system of sealing all the time, has increased the reliability of draining.
As shown in Figure 2, present embodiment seepage drainage system is communicated with seepage draining charge for remittance gallery 21 in the factory in the bottom of seepage collecting well 5, and the drainage system II of sealing being set at the seepage well head that catchments, the delivery port of the drainage system II of this sealing is connected to the collector drain 4 that is located at the massif higher position through outlet pipe 333.
The drainage system II of this example sealing is equipped with six deep well water pumps 16, the port of export of every deep well water pump is successively through showing that stream signalling means 7, Slow Close Valve 13 and Chang Kai hand-operated valve 10 are connected to outlet pipe 333, and the other end of described deep well water pump 16 is successively through showing stream signalling means 7, often driving hand-operated valve 10, electromagnetic valve 17 and often drive hand-operated valve 10 with another and lubricate water 18 with outside deep well water pump and be connected.
This example also is equipped with a plurality of water level switches 19 and a level sensor 20 in seepage collecting well 5.The port of export at every deep well water pump 16 is connected to instrument three-way cock 11 and pressure meter 12.And also be connected to instrument three-way cock 11 and pressure meter 12 at the other end of outlet pipe 333.
The seepage drainage system disperses owing to the draining source very much in the factory, can not adopt drainage plant directly to connect the water source of required draining, the utility model has just adopted the mode of indirect drainage, and seepage collecting well elder generation charge for remittance promptly is set, and with water pump the water in the collecting well is discharged outside the factory then.For improving seepage drainage plant reliability of operation, (this particular location can pass through calculated in advance pump motor should to be arranged in the higher position as far as possible, take all factors into consideration in conjunction with actual arrangement), in case water level is too high in the factory, should prolong the working time of suction pump as far as possible, at utmost to alleviate the influence that accident is brought.
After the water pump configuration is finished, pump outlet is increased to suitable draining place as far as possible, quote the thinking in complete Artesian Drainage water hole, the appropriate location is provided with the Artesian Drainage water hole in massif, drainage for overhaul system, seepage drainage system in the factory building are come water, by this Artesian Drainage water hole, Artesian Drainage is the safety area to factory.This Artesian Drainage water hole can make full use of landform in conjunction with the layout of power station collector drain 4, can reduce the length of discharge pipe line, can reduce pump head to a certain extent, when flow one regularly can reduce pump power, also helps the energy-saving and emission-reduction effect in power station.
Claims (9)
1, a kind of discharge structure of underground power house, comprise drainage for overhaul system and seepage drainage system, it is characterized in that: described drainage for overhaul system is provided with drainage for overhaul mouth (2) in the draft tube bottom of every generating set (1), each outfall is connected by the drainage system I of a ball valve (3) with sealing, the drainage system I of this sealing is communicated with collector drain (4) through outlet conduit (111), and the drainage system I of this sealing also is connected with seepage collecting well (5) through separation valve door (22) by inlet duct (222); Described seepage drainage system is communicated with seepage draining charge for remittance gallery (21) in the factory in the bottom of seepage collecting well (5), and the drainage system II of sealing being set at the seepage well head that catchments, the delivery port of the drainage system II of this sealing is connected to the collector drain (4) that is located at the massif higher position through outlet pipe (333).
2, the discharge structure of underground power house according to claim 1, it is characterized in that: the drainage system I of described sealing comprises the dewatering installation that a pool-size is bigger, every cover dewatering installation comprises centrifugal water pump (6), the one end is successively by showing stream signalling means (7), pressure regulator valve (8), concentric reducer (9) and often drive hand-operated valve (10) and be connected with outlet conduit (111), and the other end of centrifugal water pump (6) is by concentric reducer (9) and often drive hand-operated valve (10) and be connected with inlet duct (222); At described pressure regulator valve (8) and show between stream signalling means (7), show between stream signalling means (7) and the centrifugal water pump (6) and an end concentric reducer (9) and often open and all be connected with instrument three-way cock (11) and pressure meter (12) between the hand-operated valve (10).
3, the discharge structure of underground power house according to claim 1, it is characterized in that: the drainage system I of described sealing also comprises the dewatering installation that a pool-size is less, every cover dewatering installation comprises centrifugal water pump (6), the one end is successively through Slow Close Valve (13) with often drive hand-operated valve (10) and be communicated with outlet conduit (111), and the other end of centrifugal water pump (6) is connected with inlet duct (222) through showing stream signalling means (7) and often driving hand-operated valve (10) successively; Described Slow Close Valve (13) and often open between the hand-operated valve (10), between Slow Close Valve (13) and the centrifugal water pump (6) and centrifugal water pump (6) and show between the stream signalling means (7) and all be connected with instrument three-way cock (11) and pressure meter (12).
4, according to the discharge structure of claim 2 or 3 described underground power houses, it is characterized in that: be connected to normally closed hand-operated valve (14) between described outlet conduit (111) and the inlet duct (222).
5, according to the discharge structure of claim 2 or 3 described underground power houses, it is characterized in that: be connected to pressure transmitter (15) on the described inlet duct (222).
6, the discharge structure of underground power house according to claim 1, it is characterized in that: the drainage system II of described sealing is equipped with one group of deep well water pump (16), the port of export of every deep well water pump is successively through showing stream signalling means (7), Slow Close Valve (13) and often drive hand-operated valve (10) and be connected to outlet pipe (333), and the other end of described deep well water pump (16) is successively through showing stream signalling means (7), often opening hand-operated valve (10), electromagnetic valve (17) and another and often drive hand-operated valve (10) and lubricate water (18) with the deep well water pump of outside and be connected.
7, according to the discharge structure of claim 1 or 6 described underground power houses, it is characterized in that: water level switch (19) and level sensor (20) are installed in the described seepage collecting well (5).
8, according to the discharge structure of claim 1 or 6 described underground power houses, it is characterized in that: the port of export of every deep well water pump (16) also is connected to instrument three-way cock (11) and pressure meter (12).
9, according to the discharge structure of claim 1 or 6 described underground power houses, it is characterized in that: the other end of described outlet pipe (333) is connected to instrument three-way cock (11) and pressure meter (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201202043U CN201406754Y (en) | 2009-05-15 | 2009-05-15 | Drainage structure of underground powerhouse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201202043U CN201406754Y (en) | 2009-05-15 | 2009-05-15 | Drainage structure of underground powerhouse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201406754Y true CN201406754Y (en) | 2010-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201202043U Expired - Lifetime CN201406754Y (en) | 2009-05-15 | 2009-05-15 | Drainage structure of underground powerhouse |
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| Country | Link |
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| CN (1) | CN201406754Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818491A (en) * | 2010-05-31 | 2010-09-01 | 四川省水利水电勘测设计研究院 | Drainage system of hydropower station |
| CN104264770A (en) * | 2014-09-22 | 2015-01-07 | 国家电网公司 | Power distribution room water logging alarming and automatic draining system and control method thereof |
| CN104631604A (en) * | 2014-12-25 | 2015-05-20 | 中国电建集团贵阳勘测设计研究院有限公司 | Water-collecting well in hydropower house |
| CN107905187A (en) * | 2017-11-27 | 2018-04-13 | 新疆北方建设集团有限公司 | Method for arranging of the heavy caliber pressure regulator valve in power station |
-
2009
- 2009-05-15 CN CN2009201202043U patent/CN201406754Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818491A (en) * | 2010-05-31 | 2010-09-01 | 四川省水利水电勘测设计研究院 | Drainage system of hydropower station |
| CN104264770A (en) * | 2014-09-22 | 2015-01-07 | 国家电网公司 | Power distribution room water logging alarming and automatic draining system and control method thereof |
| CN104264770B (en) * | 2014-09-22 | 2015-11-18 | 国家电网公司 | A kind of power distribution room ponding is reported to the police and automatic drain system and control method thereof |
| CN104631604A (en) * | 2014-12-25 | 2015-05-20 | 中国电建集团贵阳勘测设计研究院有限公司 | Water-collecting well in hydropower house |
| CN107905187A (en) * | 2017-11-27 | 2018-04-13 | 新疆北方建设集团有限公司 | Method for arranging of the heavy caliber pressure regulator valve in power station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100217 Effective date of abandoning: 20090515 |