Continuous dispersive combustion device and continuous dispersive combustion forming method
A combustion device and dispersion combustion technology, applied in the field of combustion, can solve the problems of complicated switching mechanism and control system, expensive, pressure fluctuation, etc., and achieve the effect of overcoming unsteady and intermittent combustion operations and stabilizing the dispersion combustion state.
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Embodiment 1
[0026] Such as figure 1Shown is a schematic structural view of a continuous dispersion combustion device with a porous gas-permeable preheater according to the present invention. see figure 1 , the combustion device includes a burner 60 , a drum 62 and a porous air-permeable preheater 61 located inside the drum 62 and adapted to the shape of the drum 62 , as well as a blower 68 and a heat exchanger 69 . A hollow interlayer A is formed between the cylindrical drum 62 and the porous air-permeable preheater 61 . A burner 60 is installed at the bottom of the cylindrical drum 62, and there is an annular smoke outlet 64 around the burner 60, and the exhausted smoke is passed into the shell side of the heat exchanger 69 for preheating the combustion-supporting air. The wall surface of the drum 62 is provided with an air inlet along the tangential direction. The combustion-supporting air from the outside is pressurized by the fan 68 and passed into the tube side of the heat exchang...
Embodiment 2
[0051] Such as figure 2 Shown is a schematic structural view of a continuous dispersion combustion device with a vortex-fin preheater according to the present invention. see figure 2 , the combustion device includes a vortex-fin preheater 7, an inner cylinder 721 and an outer cylinder 722, a dome plate 751 and a round bottom plate 752, as well as a fan 78 and a heat exchanger 79. A hollow interlayer B is formed between the inner cylinder 721 and the outer cylinder 722 . The top and bottom of the outer cylinder 722 are closed by a dome plate 751 and a round bottom plate 752, respectively. The inner cylinder 721 is fixedly installed on the lower surface of the dome plate 751 , and there is a gap between the lower end of the inner cylinder 721 and the round bottom plate 752 . The lower half of the inner cylinder 721 is provided with a vortex-finned preheater 7, and the vortex-finned preheater 7 is composed of a series of axially symmetrical distribution centered on the centr...
Embodiment 3
[0072] The current industrial furnace design specification mainly includes three parts: burner, furnace body and waste heat recovery heat exchanger. Burners mainly include premixed and diffused burners, etc., which are used to send fuel and air into the combustion zone and achieve stable combustion. Some problems to be overcome include: more excess air is required to achieve complete combustion, flame The temperature in the area is very high, and the amount of nitrogen oxides is generated in a large amount. The furnace body is used to form the combustion chamber. Some problems to be overcome include: the heat storage loss of the refractory furnace wall and the insulation layer and the heat dissipation loss of the outer surface are relatively large. In some cases, the refractory material often needs to be repaired. Waste heat recovery heat exchanger is used to recover flue gas waste heat. Some problems to be overcome include: limited heat exchange area, low flue gas waste heat ...
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