Dual-mode flue gas emission secondary combustion heating furnace

Abstract

The invention discloses a dual-mode flue gas emission secondary combustion heating furnace. The heating furnace comprises a furnace body, a furnace hearth and a smoke exhaust pipe communicating with the furnace hearth; the smoke exhaust pipe is provided with a smoke exhaust port; a smoke exhaust valve is arranged at the smoke exhaust port; a kang connection port is formed in the part, located on the rear portion of the furnace hearth, of the furnace body; a kang connection valve is arranged at the kang connection port; a fire outlet is formed in the top of the furnace hearth; a secondary combustion air supply system is arranged at the fire outlet; a flue gas guide fire-distributing device is mounted on a furnace mouth; the flue gas guide fire-distributing device is arranged above the secondary combustion air supply system; a coal charging port is formed in the front portion of the furnace body; a coal charging smoke reversing prevention sealing device is mounted correspondingly on theouter portion of the coal charging port in a hinged mode; a communicating heat exchange water jacket is arranged on the furnace hearth and the smoke exhaust pipe; a high-efficiency heat collecting system communicating with the heat exchange water jacket is arranged in the smoke exhaust pipe; and flue deashing device corresponding to the high-efficiency heat collecting system is arranged on the outer wall of the smoke exhaust pipe. The structure is simple, design is reasonable, the heating furnace can be used for being connected with a kang or a heater, and the thermal efficiency of the heatingfurnace is improved.

Description

technical field [0001] The invention relates to the technical field of heating furnace equipment, in particular to a dual-mode flue gas discharge secondary combustion heating furnace. Background technique [0002] Most rural households in northern China use coal-fired water heating stoves for heating in winter. They can be used for cooking and heating with radiators. They are very convenient to use and have a high penetration rate. With the improvement of living standards, people have higher and higher performance requirements for water heating coal-fired heating stoves, that is, they should seek a stove that is safe, coal-saving, pollution-free, high thermal efficiency, and convenient for home use to meet the current needs of civil water heating. Market demand for coal-fired heating stoves. [0003] The heating furnace in the prior art mainly has the following problems: (1) the coal in the heating furnace cannot be fully burned, and a large amount of CO, SO2 and other harm...

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Problems solved by technology

[0003] The heating furnace in the prior art mainly has the following problems: (1) the coal in the heating furnace cannot be fully burned, and a large amount of CO, SO2 and other harmful and flammable and explosive flue gases will be produced, and these flue gases will Directly flowing away from the flue, when the flue gas is directly discharged to the outside, it will cause environmental pollution; (2) When the flue gas directly flows away from the flue, a large amount of heat in the furnace will be taken away, causing more heat loss , so that the thermal efficiency of the heating furnace is reduced; (3) The traditional heating furnace only has a single function, and cannot realize dual-purpose heating and ventilation.

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