| Abstract: | | 1. |
More than a decade of operation of water-cleaning machines with a conical net has demonstrated their good technical and economic characteristics as regards failure-free operation and water-cleaning performance.
| | 2. |
After a simple modification, the existing water-cleaning machines with a vertical axis of cone rotation can perform a fish-protecting function.
| | 3. |
For larger water consumers (such as water supply systems of thermal and nuclear power plants) machines with a horizontal cone rotation axis are recommended (so-called directflow water-cleaning machines). With some modernization of the flowthrough component, water offtake facilities can ensure bypass and survival of over 90% of young fish without building any expensive fish guard structures.
| | 4. |
Instead of fish guard facilities planned to be built at operating thermal and nuclear power plants, one should consider the possibility of removing the existing water-cleaning machines with flat nets and installing machines with conical nets.
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Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 12, pp. 37–40, December, 1990. |
