MULTISTAGE WASHING DEVICE FOR A PLATE TYPE HEAT-EXCHANGER

摘要

PURPOSE: A multi-stage washing apparatus for a plate type heat exchanger is provided to improve the washing efficiency of a plate type heat exchanger by washing a heat transfer plate quickly and authentically with strong and fast flow and vortex flow. CONSTITUTION: A multi-stage washing apparatus for a plate type heat exchanger(10) comprises a housing(15), a multi-stage washing tube(11), and a horizontal transfer rod(16). The housing is in a pipe shape and connected to a fluid pipeline through a through-hole(4a) formed in a heat transfer plate(4). The multi-stage washing tube moves from the housing along a fluid passage which is provided by the through-hole and the fluid pipeline of the heat transfer plate. The horizontal transfer rod is extended to the outside through the housing. An opening(12) is formed on the front end of the multi-stage washing tube. The back-end of the multi-stage washing tube is closed and connected to the horizontal transfer rod. A fluid outlet(13) is formed on the edge of the back part of the multi-stage washing tube.