Steam filter arrangement for filtering foreign matters from steam in steam flow passage of steam turbine system, has steam filter whose filter surface is planar and inclined at specific angle with respect to outlet-side housing region

摘要

The arrangement (10a) has a steam filter (14a) accommodated within a filter housing (12a), where steam flows into the housing through an inlet-side housing region (16a) of the housing and exits the filter housing through an outlet-side housing region (18a) after passing through a filter surface of the steam filter. The filter surface is planar and inclined at an inclination angle (alpha) of 10-50 degree with respect to an outlet-side housing region of the housing. A steam valve i.e. controllable flap valve, is arranged in the outlet-side housing region of the housing.