Unlock instant, AI-driven research and patent intelligence for your innovation.

Upper storage reservoir water filling and draining system

A drainage system and reservoir technology, applied in water conservancy projects, hydropower, hydropower stations, etc., can solve the problems of safety and reliability affecting the commissioning and commissioning time of power stations, so as to save equipment investment costs, control drainage rate, and increase reliability and the effect of flexibility

Active Publication Date: 2017-01-04
POWERCHINA HUADONG ENG COPORATION LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the safety and reliability of the water filling and drainage system of the upper reservoir directly affect the commissioning and commissioning time of the power station

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Upper storage reservoir water filling and draining system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] Such as figure 1 As shown, this implementation case is a water filling and drainage system for an upper reservoir. This system is arranged in the volute layer unit section of the underground powerhouse of the pumped storage power station. It has two sets of filling and drainage units connected in parallel. Each filling and drainage unit is composed of It consists of a water filling pump (multi-stage segmental centrifugal water pump) 3, a slow-closing check valve 4, two turbine worm drive valves 6, a normally open manual valve 1 and a bypass drain needle valve 9.

[0019] In this example, the water filling pumps 3 in the two sets of filling and drainage units are mutually standby, and can also be started at the same time; A normally closed manual valve 7 is installed on the connecting pipe.

[0020] The inlet end of the water filling pump 3 is connected to the tail water system of the lower reservoir after passing through the normally open manual valve 1, the water inta...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an upper storage reservoir water filling and draining system and aims at providing a safe and reliable upper storage reservoir water filling and draining system and providing a reliable debugging and testing water source and a water draining mode for first-time start debugging of a pumped storage power station water delivery system test and unit. According to the technical scheme, the upper storage reservoir water filling and draining system is characterized in that the system is arranged at an underground workshop volute-layer unit section of a pumped storage power station and is provided with two parallelly connected water filling and draining units, each water filling and draining unit consists of a water filling pump, a slowly closed stop valve, at least one worm wheel and worm driving valve, a normally opened manually operated valve and a bypass water draining needle valve. The system is suitable for the pumped storage power station.

Description

technical field [0001] The invention relates to a water filling and drainage system for an upper reservoir. Suitable for pumped storage power plants. Background technique [0002] For the pumped storage power station with no natural surface runoff supply in the upper reservoir, affected by natural conditions, construction period and other factors, when the first unit starts for the first time, the upper reservoir generally does not have a large water storage capacity. Considering the water storage capacity of the upper reservoir The power station needs to set up a safe and reliable water filling and drainage system for the upper reservoir. According to the characteristics of the pumped storage power station, water filling and pressure maintenance and drainage tests are required before the water delivery tunnel system is completed and put into operation. Before the unit starts, the upstream flow channel needs to be pre-filled with a certain level of water to meet the unit st...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): E02B9/02
CPCE02B9/02Y02E10/20
Inventor 和扁严丽周杰胡雄峰汪德楼曹春建郑应霞方杰刘文辉袁静张宝勇舒崚峰钱瑭
Owner POWERCHINA HUADONG ENG COPORATION LTD