Ordinary pressure hot-gas boiler

Abstract

The invention discloses an ordinary pressure hot-gas boiler. The ordinary pressure hot-gas boiler comprises a feeding device, a stove and a boiler body. The feeding device is arranged corresponding to the stove and used for providing fuel for the stove. The stove is arranged at the bottom of the boiler body. The boiler body comprises a hearth, a hot-gas exchange room, a plurality of n-shaped heat conduction pipes and heat-conducting fins. The n-shaped heat conduction pipes are arranged in an inner cavity of the hearth. The multiple n-shaped heat conduction pipes are provided with gas inlets and gas outlets. The gas inlets extend to a smoke outlet, and the gas outlets stretch into the hot-gas exchange room. The heat-conducting fins are arranged on the outer wall of the hearth in a surrounding mode and located in a clearance space between the hearth and an insulating layer. The ordinary pressure hot-gas boiler disclosed by the invention is simple in structure and high in heat energy conversion rate, regenerative biomass particles are mainly used as fuel, environmental protection and sanitation are achieved, the heat energy conversion rate can reach 85% or above, and zero emission is basically realized.

Description

technical field [0001] The invention relates to a boiler, in particular to an atmospheric pressure hot gas boiler. Background technique [0002] At present, industrial boilers can be roughly divided into two types according to pressure, one is high-pressure boilers, and the other is atmospheric pressure boilers. The high-pressure boiler has been used for a long time, and the effect is very good, but there are too many safety hazards and the maintenance cost is quite expensive. Therefore, it has begun to be replaced by the atmospheric pressure boiler in many fields; the biggest advantage of the atmospheric pressure boiler is its safety. Strong performance and high heat conversion rate, the internal pressure of the boiler is basically balanced with the external atmospheric pressure, so there is basically no safety problem. At the same time, it can not only continuously provide water vapor, but also continuously provide hot air, thereby shortening It improves the conversion pr...

AI Technical Summary

Problems solved by technology

However, these two kinds of boilers in the past all have the same defect, that is, the conversion rate of energy from fuel to heat energy is not high. -60%, and the remaining 40-50% of the heat energy is dissipated in different ways in the flue gas, the internal friction of the furnace material, the radiation outside the furnace and the emission of heat energy of the flue gas, etc.

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