INITIATION METHOD OF DETONATION IN TUBE WITH FLAMMABLE MIXTURE AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2011 - IPC F23C15/00 

FIELD: power industry.

SUBSTANCE: initiation method of detonation in tube with flammable mixture involves generation of primary blast wave (BW) and further local multiple energy action on front of moving blast wave from self-ignition centres of flammable mixture, which appear as a result of interaction of blast wave with curved surface; for generation of primary blast wave the flammable mixture in tube is lit up, turbulence of flame front is created and accelerated by means of turbulator to the observed flame velocity of 550-750 m/s with formation of primary blast wave with Mach number of not more than 2.5-3.0; then, turbulent flame front and blast wave front is separated spatially, and local multiple energy action on front of moving BW is performed to the formed space separating turbulent flame front and blast wave front by arrangement of diffraction of primary BW on windward curved surface of diverging-converging body placed into tube in the kernel flammable mixture flow, with further multiple pressure wave reflection from tube walls and from windward curved surface of the above medium, which leads to compression impact and self-ignition of flammable mixture in space between tube wall and this surface; at that, in flammable mixture flow kernel on windward side of the above medium in the nearby area of blast wave front there provided are additional self-ignition centres due to cumulation of reflected pressure waves.

EFFECT: invention is characterised with higher processibility.

10 cl, 4 dwg