Negative pressure reverse burning energy-saving furnace

Abstract

The invention relates to an energy-saving stove, namely a negative-pressure reversal combustion energy-saving stove suitable for heating of a room. The negative-pressure reversal combustion energy-saving stove comprises a shell (2), a water jacket (5), a hearth (3), a fire grate (7) and a smoke tube (9); and a hot water tube (12) and a return water tube (6) of the water jacket (5) are connected with circulating tubes at two ends of a heater (19). The negative-pressure reversal combustion energy-saving stove is characterized in that the hearth is provided with a stove door capable of being closed in a sealed manner, the smoke tube is repeatedly bent and coiled in closed space communicating with the water jacket, and the tail end of the smoke tube is connected with an inlet of an induced draft fan. The negative-pressure reversal combustion energy-saving stove has the beneficial effects that heat can be supplied for the heater and a heated brick bed simultaneously under the driving effect of the induced draft fan, banked fire is maintained for a long time and open fire can be started at any time, manual frequent operation is not required, heat efficiency is improved remarkably, emission is clean and little, and the stove is excellent in environmental protective performance. In addition, the negative-pressure reversal combustion energy-saving stove has the advantages of simple structure, low cost, stable work, safety, reliability and the like, and is expected to become a necessary utensil for families and small units.

Description

technical field [0001] The invention relates to an energy-saving stove, that is, a negative-pressure reverse-burning energy-saving stove suitable for heating a living room. Background technique [0002] In most parts of our country, the temperature in winter is low, and many rooms need heating. Cities with relatively concentrated residences have realized community heating or large-area centralized heating, while rural and pastoral areas with scattered residences still provide heating by households. Among them, many rooms can only be heated by direct combustion of stoves or by using smoke from pots and stoves to burn kangs for heating. Studies have shown that the temperature of stove heating fluctuates greatly, hot and cold, unhygienic and unsafe. The thermal efficiency of heating by burning a kang is extremely low, only below 30%, wastes fuel, pollutes the air, reduces the quality of life of residents, and the effect is not good, the surface of the kang is very hot and the...

AI Technical Summary

Problems solved by technology

However, this kind of stove requires frequent filling of fuel, cleaning of dust, and pressing of the fire, which requires frequent operations by someone and takes up manpower.

In addition, in order to burn vigorously, the stove has many ventilation points, and it is difficult to press the fire

When the room temperature does not need to continue to increase, or when people leave the room, even if fire suppression measures are taken, the fuel burns quickly, which is inconvenient to adjust the room temperature, and cannot continue to supply heat, making it difficult to form a stable room temperature

Visible, existing earth warmer still can't satisfy people's increasing demand, needs further improvement to improve

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