CN110805007A - Safe and reliable factory-wide public water supply method and system - Google Patents
Safe and reliable factory-wide public water supply method and system Download PDFInfo
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- CN110805007A CN110805007A CN201910982602.4A CN201910982602A CN110805007A CN 110805007 A CN110805007 A CN 110805007A CN 201910982602 A CN201910982602 A CN 201910982602A CN 110805007 A CN110805007 A CN 110805007A
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- 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
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- 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
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/152—Water filtration
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention belongs to the technical field of water conservancy and hydropower engineering, and particularly relates to a safe and reliable public water supply method and system for a whole plant. The invention supplies water for main transformer no-load water supply and fire fighting water supply through the water intake in the lower reservoir in the initial water supply unit, and after the unit of the pumped storage power station is put into operation, the water intake in the lower reservoir can be permanently plugged, and the problem that the whole-plant public water supply system is directly communicated with the lower reservoir is solved through the water intake in the tail water accident gate, so that the water intake reliability of the whole-plant public water supply system in the initial construction stage and normal operation of the pumped storage power station is ensured; in addition, set up an at least later stage water supply unit, when certain power station unit overhauls, one in initial stage water supply unit or the later stage water supply unit can also continue the operation, avoids closing tail water accident gate and evacuation runner and leads to the intake pipe of whole factory public water supply to cut off the flow under the condition that power station unit overhauld at needs to the reliability of pumped storage power station when overhauing has been ensured.
Description
Technical Field
The invention belongs to the technical field of water conservancy and hydropower engineering, and particularly relates to a safe and reliable public water supply method and system for a whole plant, which are suitable for pumped storage power stations developed at the tail.
Background
The whole-plant public water supply system of the pumped storage power station supplies water to intermittent water users (such as an SFC cooler, a water-cooled air compressor cooler, an air conditioner cooler of an underground plant, main transformer no-load water supply and the like) or fire water (such as underground plant fire protection, generator motor fire protection, main transformer fire protection and the like) which are not allowed to have overhigh water pressure in the plant. At the initial construction stage of a power station unit which is not put into operation, only main transformer no-load water supply and fire protection water are generally needed. The public water supply system adopts a centralized water supply mode of water taking of a water discharging reservoir, two public water filters are arranged, and two water taking ports are arranged behind tail water accident gates of different hydraulic units and are provided with a water supply main pipe which is used as a standby water source for technical water supply.
The open pumped storage power station of afterbody usually, underground factory building is nearer apart from the reservoir down, does not set up tail water accident gate opening, and tail water accident gate is established and is advanced/go out water department at the reservoir down, and some power stations do not set up the reservoir down and overhaul the gate, and even some power stations set up reservoir down and overhaul the gate and also be close to tail water accident gate setting down. For the power station, the water intake of the public water supply system of the whole plant is generally directly communicated with a lower water reservoir, and no partition measure is provided in the middle. Along with the extension of power station operating duration, in case the first valve seal that links to each other with the draft tube on the public water main of whole factory in the main building leaks because of ageing problem takes place, can not cut off rivers, can take place the risk of flooding the factory building. Meanwhile, the replacement and maintenance of the valve and the pipeline in front of the valve can be carried out only by discharging water from a storage to a position below a water intake of the factory public water supply, thereby bringing great difficulty to the operation and maintenance of the power station.
Disclosure of Invention
The first purpose of the present invention is to provide a safe and reliable public water supply method for whole plant.
For this reason, the above object of the present invention is achieved by the following technical solutions:
a safe and reliable factory-wide public water supply method is characterized in that: the safe and reliable factory-wide public water supply method comprises the following steps: in the initial construction stage of the pumped storage power station, a lower reservoir water intake is arranged at a dead water level higher than and close to the lower reservoir, and is led to a main plant by a water intake pipeline through the bottom of a No. 1 unit tail water tunnel; after the at least two units are put into operation, pumping water in the lower water reservoir to a dead water level, and permanently plugging a water intake in the lower water reservoir of the No. 1 unit;
at least two tail water accident gate internal water taking ports are arranged in tail water tunnels in front of tail water accident gates of different hydraulic units, each tail water accident gate internal water taking port corresponds to one water taking line, and the tail water accident gate internal water taking ports are converged into a water supply main pipe through a water taking pipe, a first valve, a second valve, a water filter system and a third valve to supply water to a whole plant public water supply system; once the first valve leaks or needs to be replaced in the later stage, the water in the flow channel can be emptied by dropping the tail water accident gate so as to fulfill the aims of overhauling and replacing the first valve;
and meanwhile, the power station is provided with at least two sets of water taking systems, so that even if a unit provided with the tail water accident gate is overhauled in one power station, the normal use of a water supply system of the whole-plant public water supply system can be still ensured, and the water supply reliability of the power station public water supply system is ensured.
While adopting the technical scheme, the invention can also adopt or combine the following technical scheme:
as a preferable technical scheme of the scheme, the method comprises the following steps: the aperture of the water intake pipeline connected with the water intake in the lower reservoir is smaller than that of the normal public water supply system, and a reducer is arranged at the joint of the water intake pipeline and the normal public water supply system.
The second objective of the present invention is to provide a safe and reliable public water supply system for whole plant.
For this reason, the above object of the present invention is achieved by the following technical solutions:
a safe and reliable's public water supply system of whole factory, its characterized in that: the safe and reliable whole-plant public water supply system comprises an initial water supply unit and at least one later-stage water supply unit, wherein the initial water supply unit and the later-stage water supply unit correspond to a power station unit respectively, the initial water supply unit and the later-stage water supply unit are connected by a water supply main pipe and are provided for each user, and the initial water supply unit comprises a lower water intake in a reservoir, a water intake in a tail water accident gate, a first valve, a second valve, a water filter system and a third valve which are connected by pipelines; the later stage water supply unit comprises a tail water accident gate inner water taking port, a first valve, a second valve, a water filter system and a third valve which are connected through a pipeline; the water intake in the lower reservoir is arranged in the lower reservoir, and the water intake in the tail water accident gate is arranged in a tail water tunnel in front of the tail water accident gate (close to the main plant side); the first valve, the second valve, the water filter system and the third valve are all arranged in the main plant.
While adopting the technical scheme, the invention can also adopt or combine the following technical scheme:
as a preferable technical scheme of the scheme, the method comprises the following steps: and a reducer is arranged on a connecting pipeline between the water intake in the lower reservoir and the water intake in the tail water accident gate. The water quantity required in the initial stage of the power station construction is not large, and the caliber of the water taking pipe is usually smaller than that of a normal public water supply system, so that a large head and a small head can be arranged for connection.
The invention provides a safe and reliable public water supply method and system of a whole plant, in the initial construction stage of a pumped storage power station, main transformer no-load water supply and fire-fighting water supply are provided through a water intake in a lower water reservoir in an initial water supply unit, and after a unit of the pumped storage power station is put into operation, the water intake in the lower water reservoir can be permanently plugged, and through a water intake in a tail water accident gate, the problem that the public water supply system of the whole plant is directly communicated with the lower water reservoir is solved, and the water intake reliability of the public water supply system of the whole plant in the initial construction stage and normal operation of the pumped storage power station is ensured; in addition, at least one later-stage water supply unit is arranged, when a certain power station unit is overhauled, one of the initial-stage water supply unit or the later-stage water supply unit can continue to operate, and the problem that a water intake pipe for public water supply of a whole plant is cut off under the condition that a tail water accident gate needs to be closed and a runner needs to be emptied to overhaul the power station unit is avoided, so that the reliability of the pumped storage power station during overhauling is guaranteed; the first valve and the second valve are arranged to improve the connection reliability between the water taking pipe and the upstream water supply pipeline in the main plant.
Drawings
Fig. 1 is a schematic diagram of a safe and reliable water supply system for the whole plant provided by the invention.
Detailed Description
The invention is described in further detail with reference to the figures and specific embodiments.
The utility model provides a safe and reliable's public water supply system of whole factory, includes initial stage water supply unit and at least one later stage water supply unit, in this embodiment, sets up to two later stage water supply units, and initial stage water supply unit and later stage water supply unit correspond a power station unit respectively, and initial stage water supply unit and later stage water supply unit are connected and are provided each user by water main 10, and each user includes: some intermittent water users (such as an SFC cooler, a water-cooled air compressor cooler, an air conditioner cooler of an underground workshop, main transformer no-load water supply and the like) or fire-fighting water (underground workshop fire protection, generator motor fire protection, main transformer fire protection and the like) which do not allow overhigh water pressure in the workshop.
The initial water supply unit comprises a water intake 1 in a lower reservoir, a water intake 4 in a tail water accident gate, a first valve 6, a second valve 7, a water filter system 8 and a third valve 9 which are connected by pipelines; the later stage water supply unit comprises a tail water accident gate inner water taking port 4, a first valve 6, a second valve 7, a water filter system 8 and a third valve 9 which are connected by pipelines; the water intake 1 in the lower reservoir is arranged in the lower reservoir, and the water intake 4 in the tail water accident gate is arranged in a tail water tunnel in front of the tail water accident gate (close to the main plant side); the first valve 6, the second valve 7, the water filter system 8 and the third valve 9 are all arranged in the main plant.
A big end and a small end 3 are arranged on a connecting pipeline between a water intake 1 in the sewer storage and a water intake 4 in the tail water accident gate. The water quantity required in the initial stage of the power station construction is not much, the caliber of the water intake pipe 2 is usually smaller than that of the water intake pipe 5 of the normal public water supply system, and therefore, the reducer 3 can be arranged for connection.
Specifically, the system is realized by the following method:
in the initial stage of power station construction, the lower reservoir is provided with a water intake 1 in the lower reservoir for supplying water for main transformer no-load water supply, fire-fighting water supply and the like, and the water intake 1 in the reservoir can be arranged about 0.3 m above the dead water level of the lower reservoir, so that water can be taken conveniently and the water intake can be blocked permanently in the later stage. After two units of the power station are put into operation, the water intake 1 in the lower reservoir behind the tail water accident gate (close to the lower reservoir side) of the 1# unit is sealed by the machine selection, so that the problem that the public water supply system of the whole plant is directly communicated with the lower reservoir is solved.
A tail water accident gate internal water intake 4 is arranged in a tail water tunnel in front of (close to the main plant side) tail water accident gates of different hydraulic units, and is converged into a water supply main pipe 10 to supply water to a whole plant public water supply system through a water intake pipe 5, a first valve 6, a second valve 7, a water filter system 8 and a third valve 9. Once the first valve 6 leaks or needs to be replaced in the later stage, the water in the flow channel can be emptied through the falling tail water accident gate, so that the purposes of overhauling and replacing the first valve 6 are achieved. Meanwhile, the power station is provided with three sets of water taking systems (namely, one initial water supply unit and two later water supply units), so that even if one set of the power station is overhauled by a set provided with a tail water accident gate, the two paths of water supply systems of the whole plant public water supply system can be still ensured to be normally used, and the water supply reliability of the power station public water supply system is ensured.
The above-described embodiments are intended to illustrate the present invention, but not to limit the present invention, and any modifications, equivalents, improvements, etc. made within the spirit of the present invention and the scope of the claims fall within the scope of the present invention.
Claims (4)
1. A safe and reliable factory-wide public water supply method is characterized in that: the safe and reliable factory-wide public water supply method comprises the following steps: in the initial construction stage of the pumped storage power station, a lower reservoir water intake is arranged at a dead water level higher than and close to the lower reservoir, and is led to a main plant by a water intake pipeline through the bottom of a No. 1 unit tail water tunnel; after the at least two units are put into operation, pumping water in the lower water reservoir to a dead water level, and permanently plugging a water intake in the lower water reservoir of the No. 1 unit;
at least two tail water accident gate internal water taking ports are arranged in tail water tunnels in front of tail water accident gates of different hydraulic units, each tail water accident gate internal water taking port corresponds to one water taking line, and the tail water accident gate internal water taking ports are converged into a water supply main pipe through a water taking pipe, a first valve, a second valve, a water filter system and a third valve to supply water to a whole plant public water supply system; once the first valve leaks or needs to be replaced in the later stage, the water in the emptying flow channel can reach the purposes of overhauling and replacing the first valve through the falling tail water accident gate.
2. A safe and reliable plant-wide public water supply method according to claim 1, characterized in that: the aperture of the water intake pipeline connected with the water intake in the lower reservoir is smaller than that of the normal public water supply system, and a reducer is arranged at the joint of the water intake pipeline and the normal public water supply system.
3. A safe and reliable's public water supply system of whole factory, its characterized in that: the safe and reliable whole-plant public water supply system comprises an initial water supply unit and at least one later-stage water supply unit, wherein the initial water supply unit and the later-stage water supply unit correspond to a power station unit respectively, the initial water supply unit and the later-stage water supply unit are connected by a water supply main pipe and are provided for each user, and the initial water supply unit comprises a lower water intake in a reservoir, a water intake in a tail water accident gate, a first valve, a second valve, a water filter system and a third valve which are connected by pipelines; the later stage water supply unit comprises a tail water accident gate inner water taking port, a first valve, a second valve, a water filter system and a third valve which are connected through a pipeline; the water intake in the lower reservoir is arranged in the lower reservoir, and the water intake in the tail water accident gate is arranged in a tail water tunnel in front of the tail water accident gate; the first valve, the second valve, the water filter system and the third valve are all arranged in the main plant.
4. A safe and reliable water public supply system for a whole plant according to claim 3, wherein: and a reducer is arranged on a connecting pipeline between the water intake in the lower reservoir and the water intake in the tail water accident gate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910982602.4A CN110805007B (en) | 2019-10-16 | 2019-10-16 | Whole-plant public water supply method and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910982602.4A CN110805007B (en) | 2019-10-16 | 2019-10-16 | Whole-plant public water supply method and system |
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| CN110805007A true CN110805007A (en) | 2020-02-18 |
| CN110805007B CN110805007B (en) | 2022-04-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111411660A (en) * | 2020-04-29 | 2020-07-14 | 中国电建集团华东勘测设计研究院有限公司 | Technical water supply system of large-scale unit |
| CN112196008A (en) * | 2020-09-04 | 2021-01-08 | 中国电建集团华东勘测设计研究院有限公司 | Water intake with maintenance cover and maintenance method |
| 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 |
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Cited By (3)
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| CN111411660A (en) * | 2020-04-29 | 2020-07-14 | 中国电建集团华东勘测设计研究院有限公司 | Technical water supply system of large-scale unit |
| CN112196008A (en) * | 2020-09-04 | 2021-01-08 | 中国电建集团华东勘测设计研究院有限公司 | Water intake with maintenance cover and maintenance method |
| 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 |
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| CN110805007B (en) | 2022-04-08 |
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