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Water supply system and water supply method for hydroelectric generating units in rivers with many sediments

A technology for generator sets and water supply systems, applied in hydroelectric power generation, hydropower stations, water supply pipeline systems, etc., can solve the problems of non-energy saving, single water supply mode, and inability to meet the needs of actual use, so as to ensure the safety of water supply and improve cooling effect, the effect of ensuring reliability

Inactive Publication Date: 2017-05-03
贵州黔水科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For hydropower stations in rivers with many sediments, the technical water supply of hydroelectric generating units is difficult to solve
Generally, the water filter is used to filter the river water and then supplied to the turbine generator set, or the external clean water is used to supply water to the turbine generator set through the circulating pool → external cooler → water pump. The water supply method is relatively simple, the water supply safety cannot be guaranteed, and it is not energy-saving
Therefore, the water supply mode of the existing silt-rich river hydroelectric generator set is still not ideal, and cannot meet the needs of actual use

Method used

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  • Water supply system and water supply method for hydroelectric generating units in rivers with many sediments
  • Water supply system and water supply method for hydroelectric generating units in rivers with many sediments
  • Water supply system and water supply method for hydroelectric generating units in rivers with many sediments

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] When the water quality of the river is good and the water head of the unit is 15-70 meters, the penstock 3 of the water turbine directly supplies water to the water turbine generator unit 5 in the forward direction. Specific operations such as figure 1 Shown:

[0031] Close the valve F2 to cut off the water flow channel of the fire pool 1, the mountain spring pool 2 and the external circulation cooling system 6, open the valve F1 to open the water flow channel of the penstock 3 of the turbine, and open the 1-2 channel and 3-4 channel of the four-way valve 4TF at the same time , Close the 2-1 channel of the three-way valve 3TF2, and open the 2-3 channel of the three-way valve 3TF2. Then if figure 2 As shown, the valves F4 and F5 in the decompression system 4 are closed, and the bypass valve P is opened. At this time, the water flow in the penstock 3 of the hydraulic turbine passes through the hydroelectric generator set 5 in the following path: penstock 3 of the hydr...

Embodiment 2

[0033] When the water quality of the river is good and the water head of the unit is 15-70 meters, the penstock 3 of the water turbine directly supplies water in reverse to the water turbine generator unit 5 . Specific operations such as figure 1 Shown:

[0034] Close the valve F2 to cut off the water flow channel of the fire pool 1, the mountain spring pool 2 and the external circulation cooling system 6, open the valve F1 to open the water flow channel of the penstock 3 of the turbine, and open the 1-3 channel and 2-4 channel of the four-way valve 4TF at the same time , Close the 2-1 channel of the three-way valve 3TF2, and open the 2-3 channel of the three-way valve 3TF2. Then if figure 2 As shown, the valves F4 and F5 in the decompression system 4 are closed, and the bypass valve P is opened. At this time, the water flow in the penstock 3 of the turbine passes through the hydro-generator unit 5 in the following path: penstock 3 of the hydro-turbine → valve F1 → three-w...

Embodiment 3

[0036] When the water quality of the river is good and the water head of the unit is higher than 70 meters, the pressure steel pipe 3 of the hydraulic turbine is decompressed by the decompression system 4 to supply water to the hydraulic generator unit 5 in a positive direction; the specific operation is as follows figure 1 As shown: the specific operation is as follows figure 1 Shown:

[0037] Close the valve F2 to cut off the water flow channel of the fire pool 1, the mountain spring pool 2 and the external circulation cooling system 6, open the valve F1 to open the water flow channel of the penstock 3 of the turbine, and open the 1-2 channel and 3-4 channel of the four-way valve 4TF at the same time , Close the 2-1 channel of the three-way valve 3TF2, and open the 2-3 channel of the three-way valve 3TF2. Then if figure 2 As shown, the valves F4 and F5 in the decompression system 4 are opened, and the bypass valve P is closed. At this time, the water flow in the penstock...

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Abstract

The invention discloses a water supply system and a water supply scheme of a water-turbine generator set in a heavy sediment-carrying river. The water supply system achieves switch of multiple water supply schemes through a combination of a four-way valve and a three-way valve; one of the water supply schemes 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 scheme of a water-turbine generator set in the heavy sediment-carrying river has the advantages that not only technical water supply schemes 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 [0001] The invention relates to a water supply system and a water supply method of a hydroelectric generator set for a river with many sediments, and belongs to the technical field of water supply for a hydroelectric generator set for a river with many sediments. Background technique [0002] It is difficult to solve the technical water supply of the hydropower station and the hydroelectric generator set in the hydropower station of the river with many sediments. Generally, the water filter is used to filter the river water and then supplied to the hydro-generator unit, or the external clean water is used to supply water to the hydro-generator unit through the circulating pool→external cooler→water pump. Therefore, the water supply mode of the existing silt-rich river hydroelectric generating unit is still far from ideal, and cannot meet the needs of actual use. Contents of the invention [0003] The purpose of the present invention is to provide a water s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03B11/00
CPCE02B9/00E02B9/06E03B1/02E03B7/02E03B7/07E03B7/078Y02E10/20
Inventor 葛曦申献平郭建伟
Owner 贵州黔水科技有限责任公司
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