Efficient energy-saving environment-friendly air return heating furnace

Abstract

The invention discloses an efficient energy-saving environment-friendly air return heating furnace, which comprises a furnace base, a furnace body, a furnace core, a furnace panel and a smoke exhaustchamber. The furnace core is arranged in the furnace body and coaxially arranged on the furnace base with the furnace body; the furnace panel is arranged at the top of the furnace body; an opening communicated with an inner cavity of the furnace core is formed in the top face of the furnace base, and a furnace bridge is arranged at the opening; the furnace body is composed of an inner furnace wall, a middle furnace wall, an outer furnace wall and a sealing plate, and two cavities are formed between the inner furnace wall and the outer furnace wall; the furnace core is composed of a refractorylayer, a housing and a fire gathering cover, and a second ventilation channel is formed between the refractory layer and the housing; and a first heat return channel is formed between the outer wall of the housing and the inner wall of the inner furnace wall. By the adoption of the return air heating furnace, different channels are utilized to make smoke and air operate in different channels, andheat in the smoke is fully utilized for heating input cold air; the fuel can be fully combusted through the heated air, so that the combustion efficiency is improved; and the return air heating furnace can be widely applied and popularized in rural areas or cities and towns.

Description

technical field [0001] The invention relates to the technical field of combustion stoves, in particular to a high-efficiency, energy-saving and environment-friendly return air heating stove. Background technique [0002] The air return furnace is a device that burns coal or other biomass fuels for heating or cooking. It mainly includes a furnace barrel for heat insulation, and a combustion chamber is set in the furnace body. The coal or biomass fuel is put into Heat is generated after combustion in the combustion chamber. At present, the country is actively advocating a low-carbon environment, and energy saving and consumption reduction have become the theme of the world. If the traditional stove is still used, it will not only waste resources, but also waste a lot of fuel, and the combustion firepower is not strong, the firepower cannot be adjusted, and there is a problem that it is difficult to seal the fire. lead to low combustion efficiency. It is mainly reflected in t...

AI Technical Summary

Problems solved by technology

At present, the fuel used in the commonly used air return stove is relatively simple, and in the process of use, sometimes it is necessary to use biomass fuel and firewood as fuel, which will easily cause the firewood to accumulate at the bottom of the furnace core and block the furnace bridge, causing the furnace to be damaged. Insufficient oxygen supply leads to insufficient combustion, resulting in large flue gas pollution, low thermal efficiency, and inability to effectively use the heat in the flue gas

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