FIELD: process engineering.
SUBSTANCE: invention relates to hydrodynamic cleaning of inner surfaces of deposits. Method comprises forcing pressurised fluid jet from cavitation exciter nozzle onto surface to be cleaned. Fluid jet is formed in drowned chamber with controlled fluid flow rate in jet. Part with slotted cavity is placed in closed vessel filled with water. Note here that said exciter nozzle forces out fluid flat jet, its sizes corresponding those of part slotted cavity cross section. Part position in sad vessel is fixed at preset distance of part open slotted hole from cavitation source slotted nozzle. Note here that fluid jet forced out contains high content of gas-steam bubbles in jet to affect deposits by total hydrodynamic and erosion effects by varying amplitude and frequency of internal and external pressure pulsations in fluid jet to approximate to deposit material natural resonance oscillations to allow maximum destruction of deposits in part slotted cavity. Static pressure corresponding to maximum erosion capacity of cavitation is maintained in drowned vessel.
EFFECT: efficient cleaning of slotted parts.
2 cl, 6 dwg
