METHOD OF TWO-STAGE MIXING OF A LIQUID AND A GAS WITH HEIGHTENED HOMOGENEITY Russian patent published in 2005 - IPC

FIELD: mechanical engineering; power engineering; transportation industry; domestic equipment and other industries.

SUBSTANCE: the invention is pertaining to the fields of mechanical engineering, power engineering, transportation industry, domestic equipment and other fields, where processes of mixing of different liquids and gases take place, and also, in particular, to creation of low- emission combustion chambers (CC) of the stationary gas-turbine plants (GTP) with a preliminary preparation of a mixture of a liquid or gaseous fuels and air. According to the offered method the liquid and the gas are preliminary mixed, then a stream of the formed two-phase mixture pass through a penetrable element (PE) with a set value of porosity, where the basic mixing of components takes place with formation of a homogeneous mixture and its speeding up in the nozzle. The liquid is sprayed by its feeding either through a centrifugal or an air-operated injectors or through a perforated element and (or) an additional PE with the given values of porosity and dispersity installed at the end of the corresponding trunks of the liquid feeding. At that the liquid is fed under pressure, at which the dripping mode of its outflow from the additional PE is realized. A field of the centrifugal force is influenced on the two-phase mixture stream. For this purpose a special device - a turbulent mixing chamber representing a cap-shape hollow body of rotation is used. At that the side walls of the camber are in part or completely formed by PE. The field is formed by rotation of the two-phase mixture stream along the lateral surface of the turbulent mixing chamber with the help of an inlet axial - vane swirler or at the expense of one-, two- or multi-channel tangential feeding of the stream to this surface. In the capacity of a nozzle they use an outlet axial - vane swirler and (or) an axisymmetric profiled converging nozzle. Realization of the given method allows to produce the low- emission combustion chambers (CC) of the gas-turbine installations (GTI), household, office and industrial mixers with a multiple (in 5-7 times) saving of the sweet water and safe heaters of water with the help of the heated air, etc.

EFFECT: the invention allows to produce the low- emission combustion chambers of the gas-turbine installations, household, office and industrial mixers with a multiple (in 5-7 times) saving of the sweet water as well as the safe heaters of water.

3 cl, 2 dwg