External water pressure reducing structure of surge chamber

A surge chamber, water pressure technology, applied in the direction of hydropower, hydropower stations, water conservancy projects, etc., can solve the problems of waste of resources, large use of steel bars, large investment, etc., achieving low cost, alleviating hidden dangers, and small changes Effect

Pending Publication Date: 2021-08-06
CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is limited in reducing the external water head, and the consolidation grouting increases the construction period (increasing the grouting process), and the corresponding investment is relatively large. At the same time, the risk of consolidation grouting polluting the environment is relatively high, which is not conducive to environmental protection
In addition, the reinforcement of the surge chamber is strengthened to resist the external water pressure, the amount of steel used is large, the investment is large, and resources are wasted, which does not meet the national energy-saving and emission-reduction requirements.

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
  • External water pressure reducing structure of surge chamber
  • External water pressure reducing structure of surge chamber
  • External water pressure reducing structure of surge chamber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Such as figure 1 , figure 2 with image 3 The water pressure decompression structure outside the pressure regulating chamber includes a pressure regulating chamber 31, a drainage pipe network system 7 is arranged in the wall of the pressure regulating chamber 31, and the drainage pipe network system 7 is arranged at the bottom of the pressure regulating chamber 31. The surge chamber drain pipe 4 is connected.

[0020] The surge chamber is a building set on the pressure waterway, which mainly reflects the water shock wave through the free water surface (or air cushion layer) of the surge chamber, and restricts the water shock wave from entering the pressure lead (tail) waterway, so as to meet the technical requirements of the unit regulation guarantee . When the deep buried surge chamber is overhauled, the external water pressure is relatively high. The pre...

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 the field of water conservancy and hydropower facilities, in particular to an external water pressure reducing structure of a surge chamber, and the external water pressure reducing structure of the surge chamber is low in cost and effectively realizes external water collection so as to directly and effectively reduce the external water pressure. The external water pressure reducing structure comprises the surge chamber, a drainage pipe network system is arranged in the wall surface of the surge chamber, and the drainage pipe network system is in communication with a surge chamber drainage pipe arranged at the bottom of the surge chamber; and when the surge chamber needs to be overhauled in actual use, firstly, all water inside the surge chamber is drained, then, the drainage pipe network system in the wall surface of the surge chamber is used for orderly collecting external water, and the collected external water is gathered to the surge chamber drainage pipe so as to be finally drained, so that the external water pressure is directly and effectively reduced. According to the external water pressure reducing structure of the surge chamber, the change of the existing structure is small, the corresponding cost is low, and various hidden dangers caused by overlarge external water pressure can be effectively relieved. The external water pressure reducing structure is particularly suitable for occasions of decompression of the external water pressure of the surge chamber.

Description

technical field [0001] The invention relates to the field of water conservancy and hydropower facilities, in particular to a pressure-regulating outdoor water pressure decompression structure. Background technique [0002] With the country's demand for hydropower and clean energy, a large number of high dams have been built to generate electricity using water heads. In order to reduce the impact on the environment and improve the adaptability to hub layout, a large number of underground workshops have been built. Pressure chamber and meet the requirements of reflected water shock wave. The deep-buried surge chamber is affected by the water surface line of the mountain body and the water seepage in the surge chamber, and the external water pressure is relatively high. When the surge chamber is overhauled, all the internal water body is drained, and the external water pressure is relatively high. Generally, bedrock consolidation grouting and surge chamber reinforcement are us...

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): E02B9/06
CPCE02B9/06Y02E10/20
Inventor 杨敬冯天骏赵明李永红鲁毅
Owner CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products