Multi-combustion type civil heating furnace integrating direct firing, return firing and gasified combustion

Abstract

The invention relates to a multi-combustion type civil heating furnace integrating a direct firing, a return firing and a gasified combustion. The heating furnace comprises a furnace body and an expansion tank, a coaling port, a front air door and a slag-removing door are sequentially arranged on a front end of the furnace body from top to bottom, and a first furnace port is arranged on an upper end of the furnace body. The heating furnace is characterized in that a second furnace port is arranged on an upper end of the first furnace port, a porous cylindrical inner sandwich layer combustion-aiding device is embedded in the first furnace port, a cylindrical temperature increasing device with high refractory is fixedly arranged on a lower end of the porous cylindrical inner sandwich layer combustion-aiding device, an inner air duct system is arranged in the furnace body, and a connecting-rod-type air door adjustment device is arranged on a rear end of the furnace body. The heating furnace has the positive effects that firstly, the environmental pollution is reduced, secondly, the energy is saved, thirdly, the heat efficiency is high, fourthly, the use is safe, fifthly, multiple functions of one furnace are realized, and the requirement on use for a user is met, and sixthly, the combustion controllability of fuels and the fire banking capability of a cooker unit are increased.

Description

technical field [0001] The invention relates to a multi-combustion civil heating furnace integrating direct combustion, back-firing and gasification combustion. Background technique [0002] Most of the northern rural households use coal-fired heating stoves for heating in winter. With the improvement of living standards, people have higher and higher requirements for the performance of coal-fired heating stoves for water heating. , No pollution, high thermal efficiency, and convenient household use stoves to meet the current market demand for coal-fired heating stoves for civil water heating. [0003] According to GB16154-2005, the "General Technical Conditions for Civil Water Heating Coal Stoves", the multi-combustion civil heating stove that integrates direct firing, back-firing and gasification combustion is a combination of traditional direct-firing and back-firing civil heating. On the basis of the furnace, reasonable improvements and technical optimizations have been...

AI Technical Summary

Problems solved by technology

[0004] At present, civil water heating coal-fired stoves on the market are roughly divided into two types: "direct-fired" and "back-fired". A large number of discharges lead to serious environmental pollution. Household use has a lot of dust, smoke, and low indoor temperature, and the fuel cannot be fully burned, resulting in waste of resources and great potential safety hazards, such as: carbon monoxide poisoning, etc.; Residential heating furnaces have been relatively improved, and can carry out secondary combustion of combustible gases emitted during fuel combustion, but they are still unable to do what they want. The rationality of its internal structure needs in-depth design and planning, and there are still problems such as smoke emissions and dust pollution. , and even produce chain reaction problems such as low thermal efficiency, slow heating, and insufficient heating area. Although there are many problems to be optimized, compared with direct-fired civil heating furnaces, return-fired civil heating furnaces have gradually been recognized by the market

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