DEVICE FOR MECHANICAL CLEANING OF COOLING WATER FLOW

摘要

Equipment for filtering the cooling-water in a power-station condenser system comprises a cylindrical sieve housing (1), forming part of a duct and enclosing at least one sieve basket assembly (2) axially aligned with the housing axis (3). The basket assembly is divided into two or more sectors which act in parallel by partition (8), and a flap valve (10) enables each sector in turn to be isolated from the upstream side of the housing to suspend the forward flow therethrough. Each sector has a valve (11) which is then opened, so that water filtered through the other sector (5) backwashes the sieve in the isolated sector and carries debris out through that valve (11). Sieve baskets may be of various shapes, and a four- sector arrangement is exemplified.