FLUSHING METHOD FOR CONDENSERS WITH SHORT-TIME RETURN WATER FLOW Russian patent published in 2013 - IPC F28G13/00 

FIELD: power industry.

SUBSTANCE: flushing method of condensers with short-time return water flow involves an operating condenser filled with water, a supply water conduit having a shutoff gate valve and an operating forcing pump, an outlet water conduit having a shutoff gate valve, and an upper drain water chamber having a manhole hatch. Return water flow in the condenser is formed at performance of the following operations: shutoff gate valve is closed on an outlet water conduit, and after it is closed, the forcing pump on the supply water conduit is switched off. After the pump is stopped, the manhole hatch is opened on upper drain water chamber, and after the air suction through it to the condenser is completed, the manhole hatch is closed. Then, normal operation of the condenser and power of the turbine generator are restored. Such a method can be used at reduced power of the turbine generator for operation without any condenser.

EFFECT: at creation of short-time return water flow, soft and muddy deposits are washed off tubes of condensers; as a result, vacuum is improved in it and power of turbine generator increases.

1 dwg