CN211472708U - Safe and reliable's public water supply system of whole factory - Google Patents
Safe and reliable's public water supply system of whole factory Download PDFInfo
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- CN211472708U CN211472708U CN201921733630.4U CN201921733630U CN211472708U CN 211472708 U CN211472708 U CN 211472708U CN 201921733630 U CN201921733630 U CN 201921733630U CN 211472708 U CN211472708 U CN 211472708U
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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
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Abstract
The utility model belongs to the technical field of hydraulic and hydroelectric engineering, especially, relate to a safe and reliable's public water supply system of whole factory, including initial stage water supply unit and at least one later stage water supply unit, initial stage water supply unit and later stage water supply unit correspond a power station unit respectively, initial stage water supply unit and later stage water supply unit are connected and are provided each user by water main, initial stage water supply unit includes the interior intake of launching the reservoir, the interior intake of tail water accident gate, first valve, second valve, water filter system and third valve by the pipeline connection; 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.
Description
Technical Field
The utility model belongs to the technical field of hydraulic and hydroelectric engineering, especially, relate to a safe and reliable's public water supply system of whole factory is applicable to the pumped storage power station of afterbody development.
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.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a safe and reliable's public water supply system of whole factory to the technical problem that above-mentioned exists.
To this end, 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.
When adopting above-mentioned technical scheme, the utility model discloses can also adopt or make up and adopt 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 utility model provides a safe and reliable's public water supply system of whole factory, at the initial stage of construction of pumped storage power station, for main transformer no-load water supply and fire control water supply through the intake in the lower reservoir in the initial stage water supply unit, and after the unit of pumped storage power station was thrown, can be with the permanent shutoff of intake in the lower reservoir, through the intake in the tail water accident gate, solved the problem that the public water supply system of whole factory and lower reservoir directly communicate with each other with this, ensured pumped storage power station at the initial stage of construction and normal operating the water intaking reliability of the public water supply system of whole factory; 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 plant-wide public water supply system provided by the present invention.
Detailed Description
The invention will be described in further detail with reference to the accompanying drawings 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.
In the initial stage of power station construction, a lower reservoir is provided with a lower water intake 1 for supplying water for main transformer no-load water supply, fire protection water supply and the like. 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 detailed description is provided for explaining the present invention, and is only a preferred embodiment of the present invention, but not for limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made by the present invention are within the scope of the present invention.
Claims (2)
1. 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.
2. The safe and reliable water public supply system for whole plant according to claim 1, 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 |
|---|---|---|---|
| CN201921733630.4U CN211472708U (en) | 2019-10-16 | 2019-10-16 | Safe and reliable's public water supply system of whole factory |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921733630.4U CN211472708U (en) | 2019-10-16 | 2019-10-16 | Safe and reliable's public water supply system of whole factory |
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| CN211472708U true CN211472708U (en) | 2020-09-11 |
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| CN201921733630.4U Active CN211472708U (en) | 2019-10-16 | 2019-10-16 | Safe and reliable's public water supply system of whole factory |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805007A (en) * | 2019-10-16 | 2020-02-18 | 中国电建集团华东勘测设计研究院有限公司 | Safe and reliable factory-wide public water supply method and system |
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2019
- 2019-10-16 CN CN201921733630.4U patent/CN211472708U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805007A (en) * | 2019-10-16 | 2020-02-18 | 中国电建集团华东勘测设计研究院有限公司 | Safe and reliable factory-wide public water supply method and system |
| CN110805007B (en) * | 2019-10-16 | 2022-04-08 | 中国电建集团华东勘测设计研究院有限公司 | Whole-plant public water supply method and system |
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