CN101565963B - Discharge structure of underground factory - Google Patents
Discharge structure of underground factory Download PDFInfo
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- CN101565963B CN101565963B CN2009100988477A CN200910098847A CN101565963B CN 101565963 B CN101565963 B CN 101565963B CN 2009100988477 A CN2009100988477 A CN 2009100988477A CN 200910098847 A CN200910098847 A CN 200910098847A CN 101565963 B CN101565963 B CN 101565963B
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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 a discharge structure of an underground factory. The invention aims at always closing the reservoir water in a discharge system and pumping the water out of the factory when overhauling a machine set by adopting the mode of combining mechanical discharge and automatic flowing discharge, and leading the leakage water in the factory to be discharged out of the factory by anindirect mode. The technical proposal thereof is as follows: an overhauling discharge system is provided with overhauling discharge ports at the lower parts of the tail water pipes of each electric generating set; each discharge port is connected with a closed discharge system I through a ball valve; the closed discharge system I is communicated with a discharge gallery through an outlet pipeline;the closed discharge system I is also communicated with a leakage collection well by an isolating valve through an inlet pipeline; while the leakage discharge system is communicated with a leakage discharge gallery in the factory at the lower part of the leakage collection well and the closed discharge system II is arranged on the mouth of the leakage collection well. The water outlet of the closed discharge system II is connected to the discharge gallery arranged at the higher position of a hill through a water pipe. The discharge structure of underground factory is applicable to the discharge of the underground factory.
Description
Technical field
The present invention 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 problem to be solved in the present invention 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 solution adopted in the present invention 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 invention has the beneficial effects as follows: the present invention has 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 drainage for overhaul of the present invention system.
Fig. 2 is the system drawing of seepage drainage system of the present invention.
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 present invention 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. the discharge structure of a 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. the discharge structure of underground power house according to claim 6, 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 |
|---|---|---|---|
| CN2009100988477A CN101565963B (en) | 2009-05-15 | 2009-05-15 | Discharge structure of underground factory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100988477A CN101565963B (en) | 2009-05-15 | 2009-05-15 | Discharge structure of underground factory |
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| Publication Number | Publication Date |
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| CN101565963A CN101565963A (en) | 2009-10-28 |
| CN101565963B true CN101565963B (en) | 2011-01-05 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104120693B (en) * | 2014-08-12 | 2016-01-20 | 广东梅雁吉祥水电股份有限公司 | The energy-saving drainage system of a kind of bulb type generator set |
| CN105317616A (en) * | 2015-11-10 | 2016-02-10 | 西华大学 | Overhaul drainage system of through-flow turbine |
| CN105484349A (en) * | 2015-12-14 | 2016-04-13 | 国家电网公司 | Method for improving leakage drainage capacity of pumped-storage power station underground workshops |
| CN107419789A (en) * | 2017-07-20 | 2017-12-01 | 贵州省水利水电勘测设计研究院 | The drainage system and water discharge method of the turbine-generator units in the higher river of tailwater level |
| CN111321714B (en) * | 2020-03-03 | 2021-11-05 | 中国电建集团华东勘测设计研究院有限公司 | A overhaul drainage system for V style of calligraphy tailwater tunnel crowd |
| CN111663623A (en) * | 2020-05-18 | 2020-09-15 | 中国电建集团华东勘测设计研究院有限公司 | Water-flooding-proof drainage system for underground powerhouse of pumped storage power station |
| CN113653014A (en) * | 2021-08-02 | 2021-11-16 | 长江勘测规划设计研究有限责任公司 | Long tail water system maintenance drainage system and method |
| CN114960568B (en) * | 2022-04-22 | 2023-12-05 | 中国电建集团华东勘测设计研究院有限公司 | Emergency drainage system for seepage water collecting well of large hydropower station |
| CN117072364B (en) * | 2023-09-20 | 2024-04-02 | 中铁十四局集团第二工程有限公司 | Tail water treatment system of hydroelectric power station and hydroelectric power generation system |
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