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Cover type air cushion type pressure balance chamber

An air-cushion surge chamber and cover-type technology, which is applied in the field of equipment for suppressing water hammer and surge, can solve the problems of high natural permeability of rocks, etc., achieve the effects of small water flow, high water head, and saving engineering investment

Active Publication Date: 2009-02-04
CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above methods to deal with the air leakage problem of the air cushion surge chamber are effective in Norway, but this kind of air cushion surge chamber has higher requirements on the surrounding rock, and the geological conditions of our country often cannot meet the requirements of the air cushion surge chamber. Surrounding rock permeability requirements, rock natural permeability is relatively large

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  • Cover type air cushion type pressure balance chamber
  • Cover type air cushion type pressure balance chamber
  • Cover type air cushion type pressure balance chamber

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings.

[0014] Such as Figure 1 ~ Figure 3 As shown, the bell-type air-cushion surge chamber of the present invention also adopts a sealed air chamber 1, and by inflating the air chamber 1, an air cushion 7 and a water cushion 8 are formed in the air chamber 1. The air chamber 1 communicates with the pressure water channel 3 through the connecting tunnel 2. The periphery and top of the air chamber 1 are composed of a closed cover 4 with an open bottom, and the air cushion 7 formed in the air chamber 1 is closed by the airtight cover 4. gas, so as to avoid the large air leakage of the air-cushion surge chamber caused by the large leakage of the surrounding rock, and reduce the requirements of the air-cushion surge chamber on the leakage of the surrounding rock.

[0015] When the generating set is discarded or loaded, it will cause a pressure difference between the inside and ...

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Abstract

The invention relates to a frame air cushion pressure adjustable room which uses high pressure to form air cushion to restrain water level and water fluctuation, to be used in the condition with high rock natural penetration, wherein the invention forms air cushion and water cushion in sealed air room; the air room via connecting tunnel is connected to the pressure water channel; the periphery and top of air room are formed by the sealing frame with open bottom, to effectively seal the gas of air room. The invention can realize effective gas seal in the pressure adjustable room, with lower demand to the rock penetration, high detecting level and low flux. And the invention can save cost.

Description

technical field [0001] The invention relates to a device for suppressing water hammer and surge in water conservancy and hydropower projects, in particular to a cover-type air-cushion surge chamber that uses high-pressure air to form an air cushion to suppress the height and fluctuation amplitude of water level. Background technique [0002] The surge chamber used in water conservancy and hydropower projects is a device used to suppress water hammer and surge. The surge chamber is used to suppress the water hammer wave and surge from the pressure water channel, thereby reducing the water hammer of the pressure water channel. It is beneficial to improve the operation stability of the unit and the quality of power supply. The upper part of the conventional surge chamber is connected to the atmosphere, and the indoor water surface pressure is always the same as the atmospheric pressure. Therefore, when the load of the power station is adjusted, the water surface rises and falls...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B9/00E02B9/06
CPCE02B9/06Y02E10/22Y02E10/20
Inventor 陈五一郝元麟刘全才陈子海张团刘朝清汤雪峰郑岳岷
Owner CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE