DEVICE FOR SHOCK-PULSE CLEANING OF BOILER SURFACES Russian patent published in 1999 - IPC

FIELD: heat-power engineering; cleaning of boiler heating surfaces from ash deposits in any technological process requiring shock-wave generators. SUBSTANCE: device for shock-pulse cleaning of boiler has shock pipe, explosion chamber and lock to let in explosive and initiate explosion. Explosion chamber is made in form of two-layer cylinder mated through threaded joint with shock pipe and lock which accommodates blasting mechanism and device blocking blast in process of recharging and under any emergency conditions, including operator's fault. Blocking device is made in form of plate with hole installed for movement in lock by means of flexible member and stop. EFFECT: provision of shock-wave generator with improved performance characteristics, enhanced reliability and efficiency in operation. 3 cl, 2 dwg