Bearing the technical water supply system of hydropower station by hydroelectric generating set, generator cooling water system, the system will directly affect the unit running safety and the economical plant operation; According to technical water supply system of hydropower station, the basic technical parameters and equipment requirements of technical parameters of the detailed design of water supply and reasoning, make a design scheme to conform to the requirements of the specification, make the system meet the normal safe operation of the unit under various conditions.

object of technical water supply system for generator on the guide bearing oil cooler, generators, thrust bearing oil cooler, air cooler water turbine guide bearing oil cooler. Hydropower unit technology in water supply cooling water to have a vital role to the safe operation of power plant unit, cooling water is not normal operation, will cause the temperature rise, alarm, and even outage.

1, the low water head is less than 15 m, appropriate USES pump water supply way.

2, scope of water head is 15 m - 70 m, appropriate USES artesian water supply mode.

3, water head range of m - 70 120 m, appropriate USES gravity stress or other water supply way.

4, water head is larger than 120 m, choose water supply mode, should carry on the technical and economic comparison.

5, when the power plant water head variation range is larger, the single water supply mode cannot satisfy the need or not the economy, can be used mixed water supply way.

6, the arrangement conditions permit and the economic and reasonable, can choose pool water supply in the middle.

according to the regulation, YanYun, zhenjiang shut power station are appropriate chooses their decompression technology. Clay plant of high water head, can consider to pump water, closed cycle water supply, or artesian water pool in the middle. Below can compare the technical water supply ways:

1, the water pump water supply: water pump engine is converted to mechanical energy

. 。 。 。 。 。

more information please click: the technical water supply system for hydropower units of several ways to compare

finest YanYun power station ( H=120M，N=2×8MW） ; Zhenjiang power plant ( H=102M，N=2×14MW） ; The clay plant ( H = 188。 5 m, N = 2×16兆瓦) Belong to the high water head hydropower station. According to the standard DL/T5186 - hydroelectric power station mechanical and electrical design 2004 'regulation: