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A platform for research: civil engineering, architecture and urbanism
Transition connection device for swirling chamber and swirling tunnel during reconstructing guide tunnel into horizontal swirling tunnel
The invention relates to the field of water conservancy and hydropower, and in particular relates to a transition connection device for a swirling chamber and a swirling tunnel during reconstructing a guide tunnel into a horizontal swirling tunnel. The device comprises a cut slope formed at the tail end of a guide bank in the swirling chamber, and a loudspeaker-shaped transition for connecting the swirling chamber and the swirling tunnel; the transition section is subjected to gradual shrinkage and transition from the section of the tail end of the swirling chamber to the starting section of the swirling tunnel. With the adoption of the device, the spiral high-speed stream can be in smooth and stable transition from the swirling chamber to the swirling tunnel, so that the pressure of transition of the whole section is increased, the negative pressure can be avoided, and the cavitation damage of a transition connection part can be effectively prevented; meanwhile, the device has the advantages of being simple in structure, easy to be constructed, and small in cost.
Transition connection device for swirling chamber and swirling tunnel during reconstructing guide tunnel into horizontal swirling tunnel
The invention relates to the field of water conservancy and hydropower, and in particular relates to a transition connection device for a swirling chamber and a swirling tunnel during reconstructing a guide tunnel into a horizontal swirling tunnel. The device comprises a cut slope formed at the tail end of a guide bank in the swirling chamber, and a loudspeaker-shaped transition for connecting the swirling chamber and the swirling tunnel; the transition section is subjected to gradual shrinkage and transition from the section of the tail end of the swirling chamber to the starting section of the swirling tunnel. With the adoption of the device, the spiral high-speed stream can be in smooth and stable transition from the swirling chamber to the swirling tunnel, so that the pressure of transition of the whole section is increased, the negative pressure can be avoided, and the cavitation damage of a transition connection part can be effectively prevented; meanwhile, the device has the advantages of being simple in structure, easy to be constructed, and small in cost.
Transition connection device for swirling chamber and swirling tunnel during reconstructing guide tunnel into horizontal swirling tunnel
ZHANG DONG (author) / ZHANG WENYUAN (author) / WU YIHONG (author) / ZHANG JINXIONG (author) / YANG FAN (author) / ZHANG HONGWEI (author) / ZHANG RUI (author) / WANG ZHIGANG (author) / XIANG YAPING (author)
2015-07-08
Patent
Electronic Resource
English
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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