Double flue direct-fired heating furnace

Abstract

The invention discloses a double-flue direct burning type heating furnace, and belongs to heating furnaces. The double-flue direct burning type heating furnace structurally comprises a furnace body, a hearth and a feeding opening. A box is arranged on the outer side of the furnace body, and comprises an outer-layer box body, an inner-layer box body and an interlayer, and a smoke outlet and a hot water outlet pipe are arranged at the top of the box. An upper smoke outlet channel is arranged at the position, between an upper furnace ring and the hearth, of the furnace body, a lower smoke outlet channel is arranged between one side of the upper portion of the hearth and the furnace body, a plurality of vertical hot water circulating pipes are arranged in the lower smoke outlet channel, an upper separation plate and a lower separation plate are arranged on the upper portion and the lower portion of the lower smoke outlet channel respectively, a water inlet cavity of the furnace body is communicated with a water return pipe, a lower furnace ring hot water circulating channel is arranged in a lower furnace ring, an upper furnace ring hot water circulating channel is arranged in the upper furnace ring, a connecting pipe is arranged between the upper furnace ring and the lower furnace ring, and a plurality of horizontally-arranged horizontal hot water circulating pipes are arranged in the inner-layer box body. The double-flue direct burning type heating furnace has the advantages of being capable of improving coal-fired heating efficiency and saving fire coal, being compact and reasonable in structure and the like.

Description

technical field [0001] The invention relates to a heating furnace, in particular to a double-flue direct-fired heating furnace. Background technique [0002] Due to the cold winter in the areas north of the Yangtze River in my country, artificial heating is required indoors to keep out the cold. Generally, large-scale boilers are used for municipal unified heating in cities, but municipal unified heating is generally not implemented in areas along the Yangtze River, rural areas, and townships. Or the indoor unit can set the indoor heating equipment for heating by itself. At present, the most commonly used household / indoor heating equipment among the people is still a coal-fired heating furnace. The existing coal-fired heating furnace uses coal to provide heat to heat the hot water in the water tank, and then provides the hot water to the indoor heating piping system. The indoor heating piping system refers to the water pipes installed indoors and their connections for heat di...

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Problems solved by technology

[0004] The chimney of the stove is a cannon that extends directly to the outside, releasing a large amount of heat to the outside and running away in vain. The utilization rate of heat is low and a lot of coal resources are wasted;

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