CLEANING MEMBER FOR STEAM TURBINE CONDENSER PIPE CLEANING Russian patent published in 2006 - IPC B08B9/57 

FIELD: cleaning, particularly cleaning pipes or tubes or systems of pipes or tubes.

SUBSTANCE: cleaning member comprises five equally shaped scraping rings formed of thin resilient sheet material. Each of two the first scraping rings have four narrow radial cuts extending from outer ring surface for depth equal to 1/2 of ring width and are spaced 90° along ring circle. Each of two other scraping rings has the same cuts, wherein two cuts are created on inner ring side and two cuts are formed on outer ring side. The fifth ring has eight similar cuts arranged from inner ring side and spaced 45° one from another along annular inner ring side. The first two rings are installed so that outer cuts thereof are inserted in two inner cuts of other rings and eight inner cuts of the fifth ring are inserted in eight cuts of four previous rings to create a frame. Foamed polyethylene article is put in the frame.

EFFECT: increased efficiency.

2 dwg