CN104595091B - Water supply system and water supply method of water-turbine generator set in heavy sediment-carrying river - Google Patents
Water supply system and water supply method of water-turbine generator set in heavy sediment-carrying river Download PDFInfo
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- CN104595091B CN104595091B CN201410569270.4A CN201410569270A CN104595091B CN 104595091 B CN104595091 B CN 104595091B CN 201410569270 A CN201410569270 A CN 201410569270A CN 104595091 B CN104595091 B CN 104595091B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 294
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000001816 cooling Methods 0.000 claims abstract description 57
- 239000008400 supply water Substances 0.000 claims description 13
- 230000006837 decompression Effects 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000000151 deposition Methods 0.000 abstract 1
- 230000037361 pathway Effects 0.000 description 12
- 238000004134 energy conservation Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B1/00—Methods or layout of installations for water supply
- E03B1/02—Methods or layout of installations for water supply for public or like main supply for industrial use
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
- E02B9/02—Water-ways
- E02B9/06—Pressure galleries or pressure conduits; Galleries specially adapted to house pressure conduits; Means specially adapted for use therewith, e.g. housings, valves, gates
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/02—Public or like main pipe systems
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
- E03B7/078—Combined units with different devices; Arrangement of different devices with respect to each other
-
- 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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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention discloses a water supply system and a water supply method of a water-turbine generator set in a heavy sediment-carrying river. The water supply system achieves switch of multiple water supply methods through a combination of a four-way valve and a three-way valve; one of the water supply methods is selected according to external conditions, normal operation of the water-turbine generator set on any conditions is guaranteed, and purposes of safety and saving energy are achieved. Meanwhile, water supply directions can be switched by the four-way valve, the purpose of water supply in forward and reverse is achieved, silt depositing in pipelines and blocking the pipelines are avoided, and the cooling effect of the water-turbine generator set is improved. The water supply system and the water supply method of a water-turbine generator set in the heavy sediment-carrying river has the advantages that not only technical water supply methods can be switched flexibly according to water quality situation of the water source, but also the water supply is safe, reliable and energy-saving and the like.
Description
Technical field
The present invention relates to the water system and method for supplying water of a kind of fully-loaded stream turbine-generator units, belong to high concentration of sediment river
The hydrotechny field of stream turbine-generator units.
Background technology
The power station of fully-loaded stream, the technical water supply of turbine-generator units are relatively difficult to resolve certainly.Water purifier filtration is adopted typically
Turbine-generator units are supplied after river, or adopts external clean water by circulating water pool → outer cooler → water pump for hydrogenerator
Group is supplied water, and its way of supplying water is more single, water supply security it cannot be guaranteed that, and not energy-conservation.Therefore, existing fully-loaded stream
The way of supplying water of turbine-generator units is still very undesirable, it is impossible to meet actually used needs.
The content of the invention
It is an object of the present invention to provide the water system and method for supplying water of a kind of fully-loaded stream turbine-generator units,
Technical water supply method can be adjusted flexibly according to the water quality situation at water source, the characteristics of with water supply security reliability, energy-conservation.It is existing to overcome
There is the deficiency of technology.
The technical scheme is that what is be achieved in that：
A kind of water system of fully-loaded stream turbine-generator units of the present invention is that the water system includes hydraulic generator
Unit, turbine-generator units are provided with two interfaces, and an interface is directly connected with the interface 3 of cross valve 4TF, another interface
Jing depressurized systems are connected with the 2nd interface of cross valve 4TF；1st interface of cross valve 4TF is connected with the interface 3 of threeway 3T3,
The 2nd interface Jing valves F1 of threeway 3T3 and hydraulic turbine liaison of penstock；The 1st interface Jing valves F2 of threeway 3T3 and threeway
The interface 3 connection of 3T2, the 2nd interface of threeway 3T2 are connected with the outlet valve of external circulation cooling system, and the 1st of threeway 3T2 connects
Mouth is connected with the 2nd interface of three-way valve 3TF1；The interface 3 of three-way valve 3TF1 is connected with the water intaking valve of external circulation cooling system,
1st interface of three-way valve 3TF1 is connected with the interface 3 of threeway 3T1；2nd interface of threeway 3T1 is connected with mountain spring pond, threeway
The 1st interface Jing valve F3 of 3T1 are connected with fire cistern；External circulation cooling system is provided with return pipe, return pipe and three-way valve
The 1st interface connection of 3TF2, the 2nd interface of three-way valve 3TF2 are connected with the 4th interface of cross valve 4TF, and the 3rd of three-way valve 3TF2 the
Interface is connected with the 1st interface of three-way valve 3TF3, and the 2nd interface of three-way valve 3TF3 is connected with the seepage sump in Factory Building, and three
The interface 3 of port valve 3TF3 is connected with downstream tail water.
In aforementioned water system, the depressurized system includes air relief valve, air relief valve two ends Jing valves F4 and valve F5 difference
It is connected with the interface 3 of the 1st interface and threeway 3T5 of threeway 3T4, the 2nd interface Jing bypass valves P's and threeway 3T4 of threeway 3T5
2nd interface connects；The interface 3 of threeway 3T4 is connected with one of interface of turbine-generator units, the 1st interface of threeway 3T5
It is connected with the 2nd interface of cross valve 4TF.
In aforementioned water system, the external circulation cooling system includes water intaking valve and outlet valve；Water intaking valve one end and threeway
The interface 3 connection of valve 3TF1, the water intaking valve other end are connected with circulating water pool；Outlet valve one end is connected with the 2nd interface of threeway 3T2
Connect, the outlet valve other end is connected with the outlet of recirculation cooler, the water inlet Jing valves F8's and threeway 3T6 of recirculation cooler
Interface 3 connects；The 2nd interface Jing valve F7 of threeway 3T6, check valve D2, water pump B2 and valve F10 and circulating water pool bottom connect
Connect；The 1st interface Jing valve F6 of threeway 3T6, check valve D1, water pump B1 and valve F9 are connected with circulating water pool bottom；Recirculated water
Pond is provided with return pipe, and return pipe is connected with the 1st interface of three-way valve 3TF2.
In aforementioned water system, the height of the mountain spring pond and fire cistern is higher than 40 meters of turbine-generator units.
Method of supplying water for a kind of fully-loaded stream turbine-generator units of the present invention of above-mentioned water system is to work as river
Preferably, and unit head is when being 15～70 meters for flowing water matter, directly positive or anti-to turbine-generator units from hydraulic turbine penstock
To water supply；When water quality of river preferably, and unit head is when being higher than 70 meters, backward by the decompression of hydraulic turbine penstock Jing depressurized systems
Turbine-generator units are supplied water forward or backwards；When water quality of river it is poor, and the mountain spring water yield it is larger when, from mountain spring pond directly to water wheels
Generating set is supplied water forward or backwards；When water quality of river it is poor, and the mountain spring water yield it is less when, by mountain spring pond and fire cistern Jing outside
Circulating cooling system is supplied water forward or backwards to turbine-generator units, and the backwater of turbine-generator units is returned Jing after depressurized system decompression
Return external circulation cooling system.
In aforementioned method of supplying water, circulating water pool in the external circulation cooling system, is provided with, entering on external circulation cooling system
Water valve Jing pipelines are directly connected with circulating water pool；Two water pumps are provided with external circulation cooling system, will be circulated by two water pumps
Water in pond is supplied water from the outlet valve of external circulation cooling system to turbine-generator units after being evacuated to recirculation cooler.
In aforementioned method of supplying water, during the water supply positive to turbine-generator units, the 1st interface of cross valve 4TF is connect with the 2nd
Mouth conducting, the interface 3 of cross valve 4TF and the conducting of the 4th interface.
In aforementioned method of supplying water, it is described to turbine-generator units reversely supply water when, the 1st interface of cross valve 4TF is connect with the 3rd
Mouth conducting, the 2nd interface of cross valve 4TF and the conducting of the 4th interface.
It is in aforementioned method of supplying water, described to be supplied from mountain spring pond and fire cistern Jing external circulation cooling systems to turbine-generator units
During water, the 1st interface and the interface 3 of three-way valve 3TF1 are turned on, and the 2nd interface of three-way valve 3TF2 and the 1st interface are turned on；Remaining feelings
Under condition, the 1st interface of three-way valve 3TF1 and the 2nd interface are turned on, and the 2nd interface and the interface 3 of three-way valve 3TF2 are turned on.
In aforementioned method of supplying water, the water in the fire cistern should be supplemented in use in time, it is ensured that fire cistern
Middle water-holding quantity is not less than the water yield of fire-fighting requirements.
As a result of above-mentioned technical proposal, the water system of the present invention can be adjusted flexibly according to the water quality situation at water source
Technical water supply program.When water quality of river is preferable, supplied water for turbine-generator units by hydraulic turbine penstock, if unit head is high
In 70 meters, decompression valve supply water is can access, it is ensured that water supply security.When water quality of river it is poor, and the mountain spring water yield on mountain it is larger when；Can
Supplied water for turbine-generator units by pure spring water.If water quality of river is poor, when the mountain spring water yield is also little；Then supplied using circulation
Water mode.If during mountain spring water yield wretched insufficiency, emergent and mountain spring can be used as by the fire cistern on mountain while supplying water.
As a result of the present invention water system, it can be ensured that turbine-generator units in all cases can normal water supply, in addition
As a result of cross valve so that two water supply interfaces of turbine-generator units can be exchanged, both can be with positive water supply, it is also possible to
Reversely supply water, therefore can greatly reduce deposition of the silt in turbine-generator units, improve the cooling effect of turbine-generator units
Really.The present invention is supplied water by multi-scheme, it is ensured that the reliability of water supply, selects one of which way of supplying water by external condition.
When quality of river water is preferable, directly supplied water by hydraulic turbine penstock；It is when rainy season flood period, spring water was in large supply, straight by spring water
Connect water supply；When quality of river water is bad and discharge of spring hour, periodical feeding mode is adopted by spring water plus fire water, reached safety with
The purpose of energy-conservation.But fire water is used, simply a kind of emergent means, ordinary circumstance is as far as possible without fire water, if using fire-fighting
Water, should be supplemented to fire water, it is ensured that in fire cistern, water-holding quantity is not less than the water yield of fire-fighting requirements in time.Safety is reached
With the purpose of energy-conservation.Therefore, compared with prior art, the present invention not only has can be flexible according to the water quality situation at water source for the present invention
The advantage of adjustment technology water supply scheme, but also there is water supply security, reliability, energy-conservation.
Description of the drawings
Fig. 1 is the structural representation of water system of the present invention；
Fig. 2 is the structural representation of the depressurized system in water system of the present invention；
Fig. 3 is the structural representation of the external circulation cooling system in water system of the present invention.
Labelling in accompanying drawing for：1- fire cisterns, 2- mountain springs pond, 3- hydraulic turbine penstocks, 4- depressurized systems, 5- water wheels
Generating set, 6- external circulation cooling systems, the seepage sump in 7- Factory Buildings, 8- air relief valve, 9- water intaking valves, 10- outlet valves,
11- circulating water pools, 12- recirculation coolers, 13- return pipes.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, but not as any limitation of the invention.
A kind of water system of fully-loaded stream turbine-generator units of the present invention, its structural representation is as shown in figure 1, bag
Turbine-generator units 5 are included, turbine-generator units 5 are provided with two interfaces, and an interface is directly connected with the interface 3 of cross valve 4TF
Connect, another interface Jing depressurized systems 4 are connected with the 2nd interface of cross valve 4TF；1st interface of cross valve 4TF and threeway 3T3
Interface 3 connection, the 2nd interface Jing valves F1 of threeway 3T3 is connected with hydraulic turbine penstock 3；1st interface of threeway 3T3
Jing valves F2 is connected with the interface 3 of threeway 3T2, and the 2nd interface and the outlet valve 10 of external circulation cooling system 6 of threeway 3T2 connect
Connect, the 1st interface of threeway 3T2 is connected with the 2nd interface of three-way valve 3TF1；The interface 3 of three-way valve 3TF1 is cooled down with outer circulation
The water intaking valve 9 of system 6 connects, and the 1st interface of three-way valve 3TF1 is connected with the interface 3 of threeway 3T1；2nd interface of threeway 3T1
It is connected with mountain spring pond 2, the 1st interface Jing valves F3 of threeway 3T1 is connected with fire cistern 1；External circulation cooling system 6 is provided with backwater
Pipe 13, return pipe 13 are connected with the 1st interface of three-way valve 3TF2, and the 2nd interface of three-way valve 3TF2 is connect with the 4th of cross valve 4TF
Mouthful connection, the interface 3 of three-way valve 3TF2 is connected with the 1st interface of three-way valve 3TF3, the 2nd interface of three-way valve 3TF3 and Factory Building
Interior seepage sump 7 connects, and the interface 3 of three-way valve 3TF3 is connected with downstream tail water.The depressurized system 4 as shown in Fig. 2
Including air relief valve 8, air relief valve 8 two ends Jing valves F4 and valve F5 are connect with the 3rd of the 1st interface and threeway 3T5 of threeway 3T4 the respectively
Mouth connection, the 2nd interface Jing bypass valves P of threeway 3T5 are connected with the 2nd interface of threeway 3T4；The interface 3 and water wheels of threeway 3T4
One of interface connection of generating set 5, the 1st interface of threeway 3T5 are connected with the 2nd interface of cross valve 4TF.Follow outside described
Ring cooling system 6 is as shown in figure 3, including water intaking valve 9 and outlet valve 10；9 one end of water intaking valve is connected with the interface 3 of three-way valve 3TF1
Connect, 9 other end of water intaking valve is connected with circulating water pool 11；10 one end of outlet valve is connected with the 2nd interface of threeway 3T2, outlet valve 10
The other end is connected with the outlet of recirculation cooler 12, and the water inlet Jing valves F8 of recirculation cooler 12 is connect with the 3rd of threeway 3T6
Mouth connection；The 2nd interface Jing valve F7 of threeway 3T6, check valve D2, water pump B2 and valve F10 are connected with 11 bottom of circulating water pool；
The 1st interface Jing valve F6 of threeway 3T6, check valve D1, water pump B1 and valve F9 are connected with 11 bottom of circulating water pool；Circulating water pool
11 are provided with return pipe 13, and return pipe 13 is connected with the 1st interface of three-way valve 3TF2.The mountain spring pond 2 and the height of fire cistern 1
Degree is higher than 40 meters of turbine-generator units.
For a kind of fully-loaded stream turbine-generator units of the present invention of above-mentioned water system method of supplying water include with
Lower 4 kinds of situations：
When water quality of river preferably, and unit head is when being 15～70 meters, from hydraulic turbine penstock 3 directly to hydraulic generator
Unit 5 is supplied water forward or backwards；
When water quality of river preferably, and unit head is when being higher than 70 meters, is reduced pressure by 3 Jing depressurized systems 4 of hydraulic turbine penstock
Backward turbine-generator units 5 are supplied water forward or backwards；
When water quality of river it is poor, and the mountain spring water yield it is larger when, it is directly positive or anti-to turbine-generator units 5 from mountain spring pond 2
To water supply；
When water quality of river it is poor, and the mountain spring water yield it is less when, by 1 Jing external circulation cooling systems 6 of mountain spring pond 2 and fire cistern
Supplied water to turbine-generator units 5 forward or backwards, the backwater of turbine-generator units 5 returns outer circulation Jing after the decompression of depressurized system 4
Cooling system 6.External circulation cooling system 6 as shown in figure 3, be provided with circulating water pool 11, the water inlet on external circulation cooling system 6
9 Jing pipelines of valve are directly connected with circulating water pool 11；Two water pumps are provided with external circulation cooling system 6, will be followed by two water pumps
Water in ring pond 11 is supplied from the outlet valve 10 of external circulation cooling system 6 to turbine-generator units 5 after being evacuated to recirculation cooler 12
Water.
When supplying water to turbine-generator units 5 are positive, the 1st interface of cross valve 4TF and the 2nd interface are turned on, cross valve 4TF's
Interface 3 and the conducting of the 4th interface.When reversely supplying water to turbine-generator units 5, the 1st interface of cross valve 4TF is led with interface 3
Lead to, the 2nd interface of cross valve 4TF and the 4th interface are turned on.From mountain spring pond 2 and 1 Jing external circulation cooling systems 6 of fire cistern to water
When turbine generator group 5 supplies water, the 1st interface and the interface 3 of three-way valve 3TF1 are turned on, and the 2nd interface of three-way valve 3TF2 is connect with the 1st
Mouth conducting；In the case of remaining, the 1st interface of three-way valve 3TF1 and the 2nd interface are turned on, and the 2nd interface of three-way valve 3TF2 is connect with the 3rd
Mouth conducting.
Water in the fire cistern 1 should be supplemented in use in time, it is ensured that in fire cistern 1, water-holding quantity is not less than
The water yield of fire-fighting requirements.
Embodiment 1
When water quality of river preferably, and unit head is when being 15～70 meters, from hydraulic turbine penstock 3 directly to hydraulic generator
Unit 5 is positive to supply water.Concrete operations are as shown in Figure 1：
The water stream channel of valve F2 cut-out fire cisterns 1, mountain spring pond 2 and external circulation cooling system 6 is closed, valve F1 is opened
The water stream channel of hydraulic turbine penstock 3 is opened, while the 1-2 passages of cross valve 4TF and 3-4 passages are opened, by three-way valve
The 2-1 pathway closures of 3TF2, the 2-3 passages of three-way valve 3TF2 are opened.Then as shown in Fig. 2 again by the valve in depressurized system 4
F4 and valve F5 is closed, and bypass valve P is opened.Now, the current in hydraulic turbine penstock 3 pass through hydraulic generator by following path
Unit 5：1-2 passages → 4 → the water wheels of depressurized system of hydraulic turbine penstock 3 → valve F1 → threeway 3T3 → cross valve 4TF are sent out
The 2-3 passages of the 2-3 passages → three-way valve 3TF3 of the 3-4 passages → three-way valve 3TF2 of group of motors 5 → cross valve 4TF → drain into factory
Seepage sump 7 or downstream tail water in room.As the valve F4 and valve F5 in depressurized system 4 is to close in this example, water
Bypass valve P in depressurized system 4 is flowed through by depressurized system 4, therefore depressurized system 4 does not work and do not reduce pressure in this example, water wheels
Water in machine penstock 3 is directly to supply water to turbine-generator units 5 are positive.
Embodiment 2
When water quality of river preferably, and unit head is when being 15～70 meters, from hydraulic turbine penstock 3 directly to hydraulic generator
Unit 5 reversely supplies water.Concrete operations are as shown in Figure 1：
The water stream channel of valve F2 cut-out fire cisterns 1, mountain spring pond 2 and external circulation cooling system 6 is closed, valve F1 is opened
The water stream channel of hydraulic turbine penstock 3 is opened, while the 1-3 passages of cross valve 4TF and 2-4 passages are opened, by three-way valve
The 2-1 pathway closures of 3TF2, the 2-3 passages of three-way valve 3TF2 are opened.Then as shown in Fig. 2 again by the valve in depressurized system 4
F4 and valve F5 is closed, and bypass valve P is opened.Now, the current in hydraulic turbine penstock 3 pass through hydraulic generator by following path
Unit 5：1-3 passages → the turbine-generator units 5 of hydraulic turbine penstock 3 → valve F1 → threeway 3T3 → cross valve 4TF → subtract
The 2-3 passages of the 2-3 passages → three-way valve 3TF3 of the 2-4 passages → three-way valve 3TF2 of pressure system 4 → cross valve 4TF → drain into factory
Seepage sump 7 or downstream tail water in room.As the valve F4 and valve F5 in depressurized system 4 is to close in this example, water
Bypass valve P in depressurized system 4 is flowed through by depressurized system 4, therefore depressurized system 4 does not work and do not reduce pressure in this example, water wheels
Water in machine penstock 3 is directly reversely to supply water to turbine-generator units 5.
Embodiment 3
When water quality of river preferably, and unit head is when being higher than 70 meters, is reduced pressure by 3 Jing depressurized systems 4 of hydraulic turbine penstock
Backward turbine-generator units 5 are positive to supply water；Concrete operations are as shown in Figure 1：Concrete operations are as shown in Figure 1：
The water stream channel of valve F2 cut-out fire cisterns 1, mountain spring pond 2 and external circulation cooling system 6 is closed, valve F1 is opened
The water stream channel of hydraulic turbine penstock 3 is opened, while the 1-2 passages of cross valve 4TF and 3-4 passages are opened, by three-way valve
The 2-1 pathway closures of 3TF2, the 2-3 passages of three-way valve 3TF2 are opened.Then as shown in Fig. 2 again by the valve in depressurized system 4
F4 and valve F5 is opened, and bypass valve P is closed.Now, the current in hydraulic turbine penstock 3 pass through hydraulic generator by following path
Unit 5：1-2 passages → 4 → the water wheels of depressurized system of hydraulic turbine penstock 3 → valve F1 → threeway 3T3 → cross valve 4TF are sent out
The 2-3 passages of the 2-3 passages → three-way valve 3TF3 of the 3-4 passages → three-way valve 3TF2 of group of motors 5 → cross valve 4TF → drain into factory
Seepage sump 7 or downstream tail water in room.It is as the valve F4 and valve F5 in depressurized system 4 is to open in this example, other
Port valve P is to close, and water flows through valve F5 in depressurized system 4, air relief valve 8 and valve F4 by depressurized system 4, therefore this example
4 decompressing effects of middle depressurized system, the water in hydraulic turbine penstock 3 is that the backward turbine-generator units 5 of decompression are positive to supply water.
Embodiment 4
When water quality of river preferably, and unit head is when being higher than 70 meters, is reduced pressure by 3 Jing depressurized systems 4 of hydraulic turbine penstock
Backward turbine-generator units 5 reversely supply water；Concrete operations are as shown in Figure 1：
The water stream channel of valve F2 cut-out fire cisterns 1, mountain spring pond 2 and external circulation cooling system 6 is closed, valve F1 is opened
The water stream channel of hydraulic turbine penstock 3 is opened, while the 1-3 passages of cross valve 4TF and 2-4 passages are opened, by three-way valve
The 2-1 pathway closures of 3TF2, the 2-3 passages of three-way valve 3TF2 are opened.Then as shown in Fig. 2 again by the valve in depressurized system 4
F4 and valve F5 is opened, and bypass valve P is closed.Now, the current in hydraulic turbine penstock 3 pass through hydraulic generator by following path
Unit 5：1-3 passages → the turbine-generator units 5 of hydraulic turbine penstock 3 → valve F1 → threeway 3T3 → cross valve 4TF → subtract
The 2-3 passages of the 2-3 passages → three-way valve 3TF3 of the 2-4 passages → three-way valve 3TF2 of pressure system 4 → cross valve 4TF → drain into factory
Seepage sump 7 or downstream tail water in room.It is as the valve F4 and valve F5 in depressurized system 4 is to open in this example, other
Port valve P is to close, and water flows through valve F4 in depressurized system 4, air relief valve 8 and valve F5 by depressurized system 4, therefore this example
4 decompressing effects of middle depressurized system, reduce 5 pressure at two ends of turbine-generator units.Water in hydraulic turbine penstock 3 is decompression
What backward turbine-generator units 5 reversely supplied water.
Embodiment 5
When water quality of river it is poor, and the mountain spring water yield it is larger when, directly supplied water to turbine-generator units 5 are positive from mountain spring pond 2；
Concrete operations are as shown in Figure 1：
The water stream channel that valve F3 cuts off fire cistern 1 is closed, the current of valve F1 cut-out hydraulic turbines penstock 3 are closed
Passage, closes the water stream channel that water intaking valve 9 and outlet valve 10 shown in Fig. 3 cut off external circulation cooling system 6, opens valve F2,
Simultaneously the 1-2 passages of cross valve 4TF and 3-4 passages are opened, the 1-2 passages of three-way valve 3TF1 are opened, three-way valve 3TF1's
1-3 pathway closures.The 2-1 pathway closures of three-way valve 3TF2, the 2-3 passages of three-way valve 3TF2 are opened.Then as shown in Fig. 2
Again the valve F4 in depressurized system 4 and valve F5 is closed, bypass valve P is opened.Now, the current in mountain spring pond 2 press following road
Footpath passes through turbine-generator units 5：The 1-2 passages of 2 → threeway of mountain spring pond 3T1 → three-way valve 3TF1 → threeway 3T2 → valve F2 →
3-4 passage → tri- of the 1-2 passages of threeway 3T3 → cross valve 4TF → depressurized system 4 → turbine-generator units, 5 → cross valve 4TF
2-3 passages of the 2-3 passages → three-way valve 3TF3 of port valve 3TF2 → drain into seepage sump 7 or downstream tail water in Factory Building.This
As the valve F4 and valve F5 in depressurized system 4 is to close in example, bypass valve P is to open, and water is flowed through in depressurized system 4
Bypass valve P by depressurized system 4, therefore depressurized system 4 does not play decompressing effect in this example, the water in mountain spring pond 2 be directly to
5 positive water supply of turbine-generator units.
Embodiment 6
When water quality of river it is poor, and the mountain spring water yield it is larger when, directly reversely supplied water to turbine-generator units 5 from mountain spring pond 2；
Concrete operations are as shown in Figure 1：
The water stream channel that valve F3 cuts off fire cistern 1 is closed, the current of valve F1 cut-out hydraulic turbines penstock 3 are closed
Passage, closes the water stream channel that water intaking valve 9 and outlet valve 10 shown in Fig. 3 cut off external circulation cooling system 6, opens valve F2,
Simultaneously the 1-3 passages of cross valve 4TF and 2-4 passages are opened, the 1-2 passages of three-way valve 3TF1 are opened, three-way valve 3TF1's
1-3 pathway closures.The 2-1 pathway closures of three-way valve 3TF2, the 2-3 passages of three-way valve 3TF2 are opened.Then as shown in Fig. 2
Again the valve F4 in depressurized system 4 and valve F5 is closed, bypass valve P is opened.Now, the current in mountain spring pond 2 press following road
Footpath passes through turbine-generator units 5：The 1-2 passages of 2 → threeway of mountain spring pond 3T1 → three-way valve 3TF1 → threeway 3T2 → valve F2 →
2-4 passage → tri- of the 1-3 passages of threeway 3T3 → cross valve 4TF → turbine-generator units 5 → depressurized system, 4 → cross valve 4TF
2-3 passages of the 2-3 passages → three-way valve 3TF3 of port valve 3TF2 → drain into seepage sump 7 or downstream tail water in Factory Building.This
As the valve F4 and valve F5 in depressurized system 4 is to close in example, bypass valve P is to open, and water is flowed through in depressurized system 4
Bypass valve P by depressurized system 4, therefore depressurized system 4 does not play decompressing effect in this example, the water in mountain spring pond 2 be directly to
What turbine-generator units 5 reversely supplied water.
Embodiment 7
When water quality of river it is poor, and the mountain spring water yield it is less when, by 1 Jing external circulation cooling systems 6 of mountain spring pond 2 and fire cistern
Supply water to turbine-generator units 5 are positive, the backwater of turbine-generator units 5 returns outer circulation cooling system Jing after the decompression of depressurized system 4
System 6.Concrete operations are as shown in Figure 1：
The water stream channel of valve F1 cut-out hydraulic turbines penstock 3 is closed, valve F2 and valve F3 is opened, is opened Fig. 3 institutes
The all valves for showing, while the 1-2 passages of cross valve 4TF and 3-4 passages are opened, the 1-3 passages of three-way valve 3TF1 are opened,
The 1-2 pathway closures of three-way valve 3TF1.The 2-3 pathway closures of three-way valve 3TF2, the 2-1 passages of three-way valve 3TF2 are opened.So
Afterwards as shown in Fig. 2 opening the valve F4 in depressurized system 4 and valve F5 again, bypass valve P is closed.Now, mountain spring pond 2 and disappear
Current in anti-pond 1 pass through turbine-generator units 5 by following path：1 → valve of fire cistern F3 → threeway 3T1, meanwhile, mountain
2 → threeway of spring pond 3T1 is converged with the water of → fire cistern 1, and then the 1-3 passages of Jing three-way valve 3TF1 enter outer circulation cooling system
System 6, into 6 current of external circulation cooling system as shown in figure 3, Jing water intaking valve 9 → circulating water pool, 11 → valve F9 and valve F10 →
Water pump D1 and water pump D2 → check valve F6 and check valve F7 → threeway 3T6 → valve F8 → recirculation cooler 12 → from outlet valve 10
Flow out；1-2 passages → 4 → the turbine-generator units of depressurized system of the water Jing threeway 3T3 → cross valve 4TF flowed out from outlet valve 10
The 2-1 passages of the 3-4 passage three-way valve 3TF2 of 5 → cross valve 4TF return the return pipe 13 of external circulation cooling system 6, return pipe
13 are connected with the circulating water pool 11 in external circulation cooling system 6.As the valve F4 and valve F5 in depressurized system 4 is in this example
Open, bypass valve P is to close, water flows through valve F5 in depressurized system 4, air relief valve 8 and valve F4 and passes through depressurized system
4 decompressing effects of depressurized system in 4, therefore this example, make 5 pressure at two ends of turbine-generator units keep pressurizer pressure.2 He of mountain spring pond
Water Jing external circulation cooling systems 6 in fire cistern 1 supply water to turbine-generator units 5 are positive, and press by depressurized system 4 is stable
Power.
Embodiment 8
When water quality of river it is poor, and the mountain spring water yield it is less when, by 1 Jing external circulation cooling systems 6 of mountain spring pond 2 and fire cistern
Reversely supply water to turbine-generator units 5, the backwater of turbine-generator units 5 returns outer circulation cooling system Jing after the decompression of depressurized system 4
System 6.Concrete operations are as shown in Figure 1：
The water stream channel of valve F1 cut-out hydraulic turbines penstock 3 is closed, valve F2 and valve F3 is opened, is opened Fig. 3 institutes
The all valves for showing, while the 1-3 passages of cross valve 4TF and 2-4 passages are opened, the 1-3 passages of three-way valve 3TF1 are opened,
The 1-2 pathway closures of three-way valve 3TF1.The 2-3 pathway closures of three-way valve 3TF2, the 2-1 passages of three-way valve 3TF2 are opened.So
Afterwards as shown in Fig. 2 opening the valve F4 in depressurized system 4 and valve F5 again, bypass valve P is closed.Now, mountain spring pond 2 and disappear
Current in anti-pond 1 pass through turbine-generator units 5 by following path：1 → valve of fire cistern F3 → threeway 3T1, meanwhile, mountain
2 → threeway of spring pond 3T1 is converged with the water of → fire cistern 1, and then the 1-3 passages of Jing three-way valve 3TF1 enter outer circulation cooling system
System 6, into 6 current of external circulation cooling system as shown in figure 3, Jing water intaking valve 9 → circulating water pool, 11 → valve F9 and valve F10 →
Water pump D1 and water pump D2 → check valve F6 and check valve F7 → threeway 3T6 → valve F8 → recirculation cooler 12 → from outlet valve 10
Flow out；1-3 passages → 5 → the depressurized system of turbine-generator units of the water Jing threeway 3T3 → cross valve 4TF flowed out from outlet valve 10
The 2-1 passages of the 3-4 passage three-way valve 3TF2 of 4 → cross valve 4TF return the return pipe 13 of external circulation cooling system 6, return pipe
13 are connected with the circulating water pool 11 in external circulation cooling system 6.As the valve F4 and valve F5 in depressurized system 4 is in this example
Open, bypass valve P is to close, water flows through valve F5 in depressurized system 4, air relief valve 8 and valve F4 and passes through depressurized system
4 decompressing effects of depressurized system in 4, therefore this example, make outer circulation cooling is returned after the hydraulic pressure of turbine-generator units 5 is reduced
Circulating water pool 11 in system 6.Water Jing external circulation cooling systems 6 in this example in mountain spring pond 2 and fire cistern 1 are to hydraulic generator
Unit 5 reversely supplies water.
, using fire cistern 1 as a kind of emergent means, ordinary circumstance is as far as possible without fire water for the present invention.Only work as river
Water quality is bad and discharge of spring hour uses fire cistern temporarily, if using fire water, in time fire water should be supplemented, it is ensured that
In fire cistern, water-holding quantity is not less than the water yield of fire-fighting requirements.The purpose of safety and energy-conservation is reached.
Claims (10)
1. a kind of water system of fully-loaded stream turbine-generator units, including turbine-generator units（5）, it is characterised in that：Water
Turbine generator group（5）Two interfaces are provided with, an interface is directly connected with the interface 3 of cross valve 4TF, and another interface Jing subtracts
Pressure system（4）It is connected with the 2nd interface of cross valve 4TF；1st interface of cross valve 4TF is connected with the interface 3 of threeway 3T3, and three
The 2nd interface Jing valves F1 of logical 3T3 and hydraulic turbine penstock（3）Connection；The 1st interface Jing valves F2 of threeway 3T3 and threeway
The interface 3 connection of 3T2, the 2nd interface of threeway 3T2 and external circulation cooling system（6）Outlet valve（10）Connection, threeway 3T2
The 1st interface be connected with the 2nd interface of three-way valve 3TF1；The interface 3 and external circulation cooling system of three-way valve 3TF1（6）Enter
Water valve（9）Connection, the 1st interface of three-way valve 3TF1 are connected with the interface 3 of threeway 3T1；2nd interface of threeway 3T1 and mountain spring
Pond（2）Connection, the 1st interface Jing valves F3 of threeway 3T1 and fire cistern（1）Connection；External circulation cooling system（6）It is provided with backwater
Pipe（13）, return pipe（13）It is connected with the 1st interface of three-way valve 3TF2, the of the 2nd interface of three-way valve 3TF2 and cross valve 4TF
4 interfaces connect, and the interface 3 of three-way valve 3TF2 is connected with the 1st interface of three-way valve 3TF3, the 2nd interface of three-way valve 3TF3 and
Seepage sump in Factory Building（7）Connection, the interface 3 of three-way valve 3TF3 are connected with downstream tail water.
2. the water system of fully-loaded stream turbine-generator units according to claim 1, it is characterised in that：The decompression system
System（4）Including air relief valve（8）, air relief valve（8）Two ends Jing valves F4 and valve F5 the 1st interface and threeway respectively with threeway 3T4
The interface 3 connection of 3T5, the 2nd interface Jing bypass valves P of threeway 3T5 are connected with the 2nd interface of threeway 3T4；The 3rd of threeway 3T4
Interface and turbine-generator units（5）The connection of one of interface, the 1st interface of threeway 3T5 and the 2nd interface of cross valve 4TF
Connection.
3. the water system of fully-loaded stream turbine-generator units according to claim 1, it is characterised in that：The outer circulation
Cooling system（6）Including water intaking valve（9）And outlet valve（10）；Water intaking valve（9）One end is connected with the interface 3 of three-way valve 3TF1,
Water intaking valve（9）The other end and circulating water pool（11）Connection；Outlet valve（10）One end is connected with the 2nd interface of threeway 3T2, outlet valve
（10）The other end and recirculation cooler（12）Outlet connection, recirculation cooler（12）Water inlet Jing valves F8 and threeway
The interface 3 connection of 3T6；The 2nd interface Jing valve F7 of threeway 3T6, check valve D2, water pump B2 and valve F10 and circulating water pool
（11）Bottom connects；The 1st interface Jing valve F6 of threeway 3T6, check valve D1, water pump B1 and valve F9 and circulating water pool（11）Bottom
Portion connects；Circulating water pool（11）It is provided with return pipe（13）, return pipe（13）It is connected with the 1st interface of three-way valve 3TF2.
4. the water system of fully-loaded stream turbine-generator units according to claim 1, it is characterised in that：The mountain spring pond
（2）And fire cistern（1）Height be higher than turbine-generator units（5）40 meters.
5. a kind of confession of the fully-loaded stream turbine-generator units for water system described in claim 1-4 any claim
Water method, it is characterised in that：When water quality of river preferably, and unit head is when being 15～70 meters, direct by hydraulic turbine penstock
Supplied water to turbine-generator units forward or backwards；When water quality of river preferably, and unit head is when being higher than 70 meters, by hydraulic turbine pressure
The backward turbine-generator units of steel pipe Jing depressurized systems decompression are supplied water forward or backwards；When water quality of river it is poor, and the mountain spring water yield compared with
When big, directly supplied water to turbine-generator units forward or backwards from mountain spring pond；When water quality of river is poor, and the mountain spring water yield is less
When, supplied water from mountain spring pond and fire cistern Jing external circulation cooling systems forward or backwards to turbine-generator units, hydrogenerator
The backwater of group returns external circulation cooling system Jing after depressurized system decompression.
6. the method for supplying water of fully-loaded stream turbine-generator units according to claim 5, it is characterised in that：The outer circulation
Circulating water pool is provided with cooling system, the water intaking valve Jing pipelines on external circulation cooling system are directly connected with circulating water pool；Follow outward
Two water pumps are provided with ring cooling system, the water in circulating water pool are evacuated to after recirculation cooler by outer circulation by two water pumps
The outlet valve of cooling system supplies water to turbine-generator units.
7. the method for supplying water of fully-loaded stream turbine-generator units according to claim 5, it is characterised in that：It is described to water wheels
When generating set forward direction supplies water, the 1st interface of cross valve 4TF and the 2nd interface are turned on, and the interface 3 of cross valve 4TF is connect with the 4th
Mouth conducting.
8. the method for supplying water of fully-loaded stream turbine-generator units according to claim 5, it is characterised in that：It is described to water wheels
When generating set reversely supplies water, the 1st interface and the interface 3 of cross valve 4TF are turned on, and the 2nd interface of cross valve 4TF is connect with the 4th
Mouth conducting.
9. the method for supplying water of fully-loaded stream turbine-generator units according to claim 5, it is characterised in that：It is described by mountain spring
Pond and fire cistern Jing external circulation cooling systems to turbine-generator units supply water when, the 1st interface of three-way valve 3TF1 and interface 3
Conducting, the 2nd interface of three-way valve 3TF2 and the conducting of the 1st interface；In the case of remaining, the 1st interface of three-way valve 3TF1 and the 2nd interface
Conducting, the 2nd interface and the interface 3 of three-way valve 3TF2 are turned on.
10. the method for supplying water of fully-loaded stream turbine-generator units according to claim 5, it is characterised in that：The fire-fighting
Water in pond should be supplemented in use in time, it is ensured that in fire cistern, water-holding quantity is not less than the water yield of fire-fighting requirements.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410569270.4A CN104595091B (en) | 2014-10-23 | 2014-10-23 | Water supply system and water supply method of water-turbine generator set in heavy sediment-carrying river |
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| CN201410569270.4A CN104595091B (en) | 2014-10-23 | 2014-10-23 | Water supply system and water supply method of water-turbine generator set in heavy sediment-carrying river |
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| CN106968876B (en) * | 2017-05-19 | 2019-01-04 | 华能澜沧江水电股份有限公司糯扎渡水电厂 | A kind of turbine-generator units technical water supply control method |
| 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 |
| CN109440869B (en) * | 2018-10-25 | 2020-12-04 | 青海盐湖工业股份有限公司 | Pressure-reducing water supply system for high-pressure water source |
| CN109268194B (en) * | 2018-11-19 | 2023-12-19 | 西安西热节能技术有限公司 | System and method for improving technical water supply reliability of hydropower station |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202402201U (en) * | 2012-01-04 | 2012-08-29 | 广东省飞来峡水利枢纽管理处 | System for cooling lamp bulb through-flow type water-turbine generator set |
| CN203532152U (en) * | 2013-10-25 | 2014-04-09 | 贵州省水利水电勘测设计研究院 | Pressure regulating device of hydropower station |
| CN204186523U (en) * | 2014-10-23 | 2015-03-04 | 贵州黔水科技有限公司 | The water system of fully-loaded stream turbine-generator units |
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2014
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202402201U (en) * | 2012-01-04 | 2012-08-29 | 广东省飞来峡水利枢纽管理处 | System for cooling lamp bulb through-flow type water-turbine generator set |
| CN203532152U (en) * | 2013-10-25 | 2014-04-09 | 贵州省水利水电勘测设计研究院 | Pressure regulating device of hydropower station |
| CN204186523U (en) * | 2014-10-23 | 2015-03-04 | 贵州黔水科技有限公司 | The water system of fully-loaded stream turbine-generator units |
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