Hot-air heating coal-saving boiler

Abstract

The disclosed boiler includes door of boiler, fire hole, fire grate, bottom of furnace, and lagging casing. Characters are that the boiler also includes a double-decked boiler cylinder and a single-decked boiler cylinder, which is inside the former. There is air inlet at lower part and air outlet at upper part of the double-decked boiler cylinder. Flame channel is formed in gap around between double-decked and single-decked boiler cylinders. Inner cavity of single-decked boiler cylinder is as room for gasifying stored coal. Flame generation room is formed between the fire grate and bottom of furnace. Solenoid valve controls air doors in channels to the room for gasifying stored coal and flame generation room; solenoid valve controls on / off of ventilation doors in breather pipes. Being setup on outer wall of double-decked boiler cylinder, thermostat or sensor through controller controls operation of fan and action of solenoid valve. Features are: high use ratio, no radiator etc.

Description

technical field [0001] The application belongs to boilers, in particular to heating boilers. Background technique [0002] At present, all kinds of heating boilers, regardless of steam heating or water heating, burn hot water or steam, and realize heating through the circulation of radiators. It is composed of heat preservation shell, water inlet, water (steam) outlet and water pipe grate. The water pipe grate is set in the combustion chamber, and the combustion chamber leads directly to the high chimney through the flue. A double-layer furnace tube is arranged around the combustion chamber, or a tube-and-tube exchanger is arranged in the flue to increase the heat exchange effect and make full use of heat energy. In the above-mentioned boiler, the coal is directly burned in the combustion chamber, and the uncombusted gas is exhausted from the flue and discharged into the atmosphere. The heat utilization rate is less than 30%, and the exhaust gas pollutes the atmosphere. I...

AI Technical Summary

Problems solved by technology

In the above-mentioned boilers, coal is directly burned in the combustion chamber, and the unburned gas is discharged from the flue into the atmosphere, and the heat utilization rate is less than 30%, and the exhaust gas pollutes the atmosphere

In addition, the above-mentioned heating methods are inseparable from radiators, which are complicated to install and take up space. Once water leaks, it is difficult to repair

Moreover, the heat absorption area of ​​the water pipe grate is small, and a large amount of heat energy is quickly discharged from the flue before being absorbed, and the heat transfer effect is poor, which wastes energy.

Moreover, it is bulky and requires special operation by a fireman.

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