FIELD: heat-power engineering.
SUBSTANCE: proposed method is based on treatment of liquid by mechanical vibration source at frequency taken form the following series sequences satisfying the following empirical dependence: 
where 
is selected integer; 
= 7.99905 kHz is frequency of resonance excitation at N=1. Proposed method of heating the liquid based on acoustic treatment of liquid includes delivery of this liquid to cavity 1 of revolving impeller 2 and discharge of it from cavity 1 through outlet holes 8 found in peripheral circular wall 21 of impeller to circular chamber 5 and then to collecting chamber 10 at satisfying the following relationship: n R
=
where n(1/s) is rotational speed of impeller; 
is radius of peripheral surface of wall 21; 
kHz
is resonance frequency and 
is selected integer. Liquid in cavity 1 is subjected to additional resonance excitation by passing it through bypass holes 12 in intermediate wall 14 of impeller at satisfying the following relationship: 
= 1,16141 
, where n(1/s) is rotational speed of impeller, 
is radius of peripheral wall 14; 
is resonance frequency and 
is selected integer. Device proposed for realization of this method includes impeller 2 made in form of disk 20 and peripheral circular wall 21 having several outlet holes 8, stator 4 with coaxial wall 22, inlet hole 3 which is communicated with cavity 1 of impeller 2 and outlet hole 11 which is communicated with collecting chamber 10, circular chamber 5 communicated with collecting chamber 10 and drive unit. External radius of wall 21 of impeller 2 is equal to 
where 
is selected integer corresponding to number of outlet holes 8. Impeller 2 is provided with intermediate circular chamber 14 having several bypass holes 12. External radius of wall 14 is equal to 
where 
is selected integer corresponding to number of holes 12.
EFFECT: enhanced intensity of resonance excitation; enhanced efficiency of heating liquid.
13 cl, 4 dwg, 1 tbl
