2results about How to "Easy to catch fire" patented technology

A combustion device is provided. A controller (8) accumulates the combustion time of a burner and stores the combustion accumulation time (Ta). The controller (8) sets a first lower limit value (A) and a second lower limit value (B) higher than the first lower limit value (A) as lower limit values of the air excess ratio of the mixture gas at the time of the re-ignition operation of an ignition mechanism (32) when the combustion accumulation time (Ta) is less than a prescribed set time and when the combustion accumulation time (Ta) is equal to or greater than the set time, respectively, which are lower than the initial value of the air excess ratio.

The invention provides a micro-miniature non-premixing burner based on a concave-convex wall structure, and relates to the technical field of micro-scale thermo-photoelectric capability conversion, the micro-miniature non-premixing burner comprises a burner outer wall, a porous medium is arranged on the inner side of the burner outer wall, and two groups of concave-convex walls arranged in a stacked manner are mounted on the inner side of the burner outer wall; the inner portion of the burner outer wall is divided into a first air inlet channel, a second air inlet channel and an air outlet channel by the two sets of concave-convex walls, the first air inlet channel and the second air inlet channel are symmetrically arranged on the two sides of the air outlet channel, the first air inlet channel and the second air inlet channel are both communicated with the porous medium, and the porous medium is communicated with the air outlet channel. The gas outlet channel comprises a combustion chamber, a bluff body and a gas outlet which are sequentially communicated; the combustion efficiency of the combustor can be improved, the combustion stability is enhanced, the heat loss is reduced, and the high-temperature environment and uniform temperature distribution are maintained.