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Cave system differential surge chamber

A surge chamber, differential technology, applied in engine components, greenhouse gas reduction, machines/engines, etc., can solve the problems of long surge wave attenuation period, affecting the power supply quality of the unit, and large surge surge amplitude in the surge chamber. , to achieve the effect of improving the flexibility of power station operation and scheduling, improving the quality of power supply, and reducing the amount of engineering.

Active Publication Date: 2008-05-14
POWERCHINA HUADONG ENG COPORATION LTD
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AI Technical Summary

Problems solved by technology

The most unfavorable problems brought about by this kind of long water diversion power generation tunnel project are the large amplitude of the surge in the surge chamber and the long attenuation period of the surge fluctuation, resulting in an increase in the height of the surge chamber, long-term operation of the speed control system of the unit, and interference to adjacent units. Larger, in order to avoid air leakage at the bottom of the surge chamber, it is necessary to set unit operation restrictions, which will affect the power supply quality of the unit

Method used

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  • Cave system differential surge chamber
  • Cave system differential surge chamber
  • Cave system differential surge chamber

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Embodiment Construction

[0024] As shown in Figure 1, the surge chamber of a long diversion hydropower station with medium and low water head and large flow has a large stable area due to the low power generation head and long tunnel line, large surge amplitude, and long wave attenuation time When a single large-scale surge chamber cannot be arranged due to geological conditions, hub layout, etc., 2 to 4 smaller-scale surge chamber groups can be arranged in series at the end of the long water diversion tunnel 1, and the distance between the surge chamber groups meets Surrounding rock stability or hub layout requirements, and arrange upper room connecting holes between the surge room groups to form a differential effect to achieve the purpose of suppressing the surge amplitude and accelerating the attenuation of surge fluctuations.

[0025] The surge chamber group in this embodiment is two impedance type underground surge chambers arranged in series. The first step is to determine the area of ​​the sur...

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Abstract

The invention relates to a cavity group differential pressure regulation room. The technical problem to be solved by the invention is to provide a cavity group differential pressure regulation room which solves the arrangement of ultra-great scale pressure regulation room by the type of pressure regulation room group and restrains the amplitude of a ground swell and speeds up the fluctuation attenuation speed of the ground swell by adopting a differential pressure regulation room, thus ensuring the safety of the structure of the pressure regulation room and improving the stability of the operation of the unit and the power supply quality of the unit. The technical proposal to solve the problem is that the cavity group differential pressure regulation room is characterized in that the end of a long water-traction tunnel is connected in series with 2 through 4 pressure regulation room group with small scales; furthermore, an upper chamber communicated hole is arranged between the pressure regulation rooms. The invention can be applied to hydropower engineering.

Description

technical field [0001] The invention relates to a tunnel group differential pressure regulating chamber. Applicable to water conservancy and hydropower projects. Background technique [0002] At present, in order to protect the environment, our country is intensifying efforts to develop green energy. Among them, water conservancy and hydropower projects, as green renewable energy, have become the country's priority development direction. A large number of water conservancy and hydropower projects have been developed one after another. The project has also entered the design and construction phases one after another. In order to ensure the normal and stable operation of the unit and the quality of power supply, the surge chamber is required to meet the Thomas stable section. For hydropower stations with medium and low water head and large flow, the Thomas stable section is required to be very large, and some projects are close to 2000m 2 , such a large-scale single surge ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03B15/14
CPCY02E10/226Y02E10/20
Inventor 张春生侯靖黄东军姜宏军李新新
Owner POWERCHINA HUADONG ENG COPORATION LTD
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