SHOT CLEANING DEVICE AND SHOT BALL RECOVERING METHOD OF SHOT CLEANING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a shot cleaning device and a shot ball recovering method capable of uniformly spreading shot balls to the entire heat transfer tubes with a very simple device without using a complicated distributor relating to conventional technology, and being applied to an evaporator and a superheater exchanging heat with a high-temperature gas.;SOLUTION: In this shot cleaning device spreading the shot balls from an upper portion of the group of heat transfer tubes for knocking off dust attached to the group of horizontal heat transfer tubes recovering heat from an exhaust gas by drop collision of shot balls, the shot balls are jetted from the upper portion of the group of heat transfer tubes by pneumatic carrying, and a collision plate is disposed to allow the jetted shot balls to collide with the plate to be dispersed.;COPYRIGHT: (C)2009,JPO&INPIT