The invention discloses a generation tank device capable of improving the filling degree and the filling speed of hybrid gas and belongs to the technical field of boiler soot blowing equipment. According to the structure, when the diameter of an exterior water inletting pipe of the generation tank is smaller, a sealing head in a tank body can adopt a method of variable diameters, and inlet bifurcated pipes can adopt two ways to install; according to the first way, the bifurcated pipes adopt straight pipe sections, when the hybrid gas enters the generation tank, the gas flows to the edge of the tank body through the four horizontal bifurcated pipes, spreads in all directions of the tank body edge, an intensifier ring at the upper end of the tank body stop the hybrid gas from flowing along the edge to some extent, the spreading range of the gas is enlarged from the edge to the middle, and the filling speed and the filling degree of the gas is improved to a large extent; and according to the second way, the bifurcated pipes enable the spreading area of the hybrid gas to be enlarged when the hybrid gas enters the generation tank and have a more remarkable effect on flowing of the gas, the impact strength of detonation waves is improved by improving the filling degree of the hybrid gas of the impulse generation tank, so that the soot blowing strength of asoot bloweris improved, and a better soot blowing effect is improved.