CN2771657Y - Vertical normal-pressure boiler of coal-burning new-type with siphon oxygenating smoke-eliminating - Google Patents

Abstract

The utility model relates to a vertical normal-pressure boiler of coal-burning new-type with siphon oxygenating smoke-eliminating dust-controlling, which is composed of an arch water cassette, an oxygen complementing nozzle, an air accumulating cassette, an air conditioning valve, a siphon opening water cassette, a heating pipe, a smoke eliminating control valve, an internal boiler chamber and an external boiler chamber. A bow arch water cassette is welded on the internal chamber wall of a boiler burning chamber. The siphon opening water cassette is fixed on the internal chamber wall corresponding to the upper part of the arch water cassette. A contracting narrow smoke gas passage is formed between the upper cassette and the lower water cassette, the smoke gas in the boiler chamber flows quickly from the upper side of a fire grate to the bottom of the arch water cassette under the negative pressure action, and then overturns downward to flow to the smoke gas passage; when the smoke gas passes through the oxygen complementing nozzle opposite to the arch water cassette, the smoke gas mixes with the air that is carried in to make the smoke gas generate whirlpool in the boiler chamber, carbon granules that are not burnt out are threw back to a fire bed to be burnt again, therefore the carbon content of the fly ash is reduced, and the coal be burnt sufficiently; the heat efficiency is improved, and the purpose of smoke-eliminating and dust-controlling is also obtained.

Description

The coal-fired vertical normal-pressure boiler of novel siphon oxygenating smoke abatement and dust control

Technical field

The utility model relates to the coal-fired vertical normal-pressure boiler of a kind of novel siphon oxygenating smoke abatement and dust control.

Background technology

Coal-fired vertical boiler commonly used does not at present mostly install any device for eliminating smoke and dust additional, makes pernicious gas directly enter atmosphere, has caused great air pollution to environment.Itself carry device for eliminating smoke and dust even if adorned smoke abatement device or boiler, but must adapted electric energy power.The utility model is in line with the principle of energy savings, on the basis of the coal-fired vertical normal-pressure boiler of conventional gravity-flow ventilation, flue gas flow passage to boiler has been done further improvement, set up the siphon oxygen supplementing device at the rear portion of boiler, by the oxygenating of control air distribution, under the situation that need not any driven fan of adapted, just can utilize gravity-flow ventilation and reach the purpose of smoke abatement and dust control.

Summary of the invention

The purpose of this utility model is that the coal-fired vertical normal-pressure boiler of the novel siphon oxygenating smoke abatement and dust control of design is on the basis of the coal-fired vertical normal-pressure boiler of conventional gravity-flow ventilation, and the flue gas flow passage of boiler has been done further improvement; This boiler is made up of chimney arch water box, oxygenating spout, collection wind box, volume damper, siphon saliva box, heat pipe, smoke evacuation control valve, the inside and outside courage of boiler; On the boiler furnace wall of inner container, welded arc chimney arch water box, on the wall of inner container of chimney arch water box top correspondence, fixed siphon saliva box, formed the narrow and small exhaust gases passes of a contraction between the last subjacent water box, make flue gas in the burner hearth under suction function fast by fire grate above to chimney arch water box bottom, tumble flows is to exhaust gases passes downwards, when the oxygenating spout place on approach chimney arch water box opposite, join mutually with the air of bringing into, make flue gas in burner hearth, produce vortex, rely on the centrifugation of vortex that unburnt carbon granules is got rid of the resume combustion of tempering bed, thereby reduced unburned carbon in flue dust, fire coal is fully burned, improve the thermal efficiency, reached the purpose of smoke abatement and dust control again.This boiler adopts gravity-flow ventilation siphon oxygenating mode to carry out smoke abatement and dust control, and promptly energy savings does not produce noise again, is applicable to various atures of coal, and soot emissions have reached national environmental standard.

The coal-fired vertical normal-pressure boiler of novel siphon oxygenating smoke abatement and dust control described in the utility model, this boiler is made up of chimney arch water box, oxygenating spout, collection wind box, volume damper, siphon saliva box, heat pipe, smoke evacuation control valve, the inside and outside courage of boiler; On inside of boiler (13) wall of fire grate (7) top, be welded with chimney arch water box (1), chimney arch water box (1) mouth communicates with the outer water layer of inside of boiler (13), on corresponding inside of boiler (13) wall in the top of chimney arch water box (1), be welded with siphon saliva box (11), siphon saliva box (11) mouth communicates with the outer water layer of inside of boiler (13), and the top of siphon saliva box (11) is welded with some heat pipes (14); Fire grate (7) top inner bag (13) and outside be welded with oxygenating spout (2) between the courage (12), locate welding collection wind box (3) at pot furnace outside-lining (12) oxygenating spout (2), and on collection wind box (3), have eyelet welding and tap into air port (5), the middle part of air inlet (5) is volume damper (4) fixedly.

Description of drawings

Referring to accompanying drawing

Fig. 1 is the utility model principal section structural representation

Fig. 2 is the utility model flat cutting face schematic diagram

The specific embodiment

Further describe and provide embodiment below in conjunction with accompanying drawing

The coal-fired vertical normal-pressure boiler of novel siphon oxygenating smoke abatement and dust control described in the utility model, this boiler is made up of chimney arch water box, oxygenating spout, collection wind box, volume damper, siphon saliva box, heat pipe, smoke evacuation control valve, the inside and outside courage of boiler; On inside of boiler (13) wall of fire grate (7) top, be welded with chimney arch water box (1), chimney arch water box (1) mouth communicates with the outer water layer of inside of boiler (13), on corresponding inside of boiler (13) wall in the top of chimney arch water box (1), be welded with siphon saliva box (11), siphon saliva box (11) mouth communicates with the outer water layer of inside of boiler (13), and the top of siphon saliva box (11) is welded with some heat pipes (14); Fire grate (7) top inner bag (13) and outside be welded with oxygenating spout (2) between the courage (12), inner bag and the outer wall of passing wide outside and narrow inside, locate welding collection wind box (3) at pot furnace outside-lining (12) oxygenating spout (2), and on collection wind box (3), have eyelet welding and tap into air port (5), the middle part of air inlet (5) is volume damper (4) fixedly.During use, one time wind enters coal-fired layer by clean-out door (6) through fire grate (7), high-temperature flue gas in the burner hearth produces siphonage under the effect of chimney negative pressure, and formation certain flow rate, negative pressure in the burner hearth can be regulated by the height and the middle smoke evacuation control valve of setting (16) of exceedingly high pipe (15) of chimney, after flue gas rises to chimney arch water box (1) bottom, the downward exhaust gases passes that forms between by chimney arch water box (1) and siphon water box (11) of tumble flows, thereby prolonged the flow process of flue gas, when oxygenating spout (2), air after will having volume damper (4) quantitatively with the principle of utilizing thermal siphon is brought the wind of burner hearth into and is joined, in burner hearth, produce vortex, rely on the centrifugation of vortex that unburnt carbon granules is got rid of the resume combustion of tempering bed, thereby reduced unburned carbon in flue dust, fire coal is fully burned, has improved the thermal efficiency, reached the purpose of smoke abatement and dust control again.This boiler adopts gravity-flow ventilation siphon oxygenating mode to carry out smoke abatement and dust control, and promptly energy savings does not produce noise again, is applicable to various atures of coal, and soot emissions have reached national environmental standard.

Claims (1)

1, the coal-fired vertical normal-pressure boiler of a kind of siphon oxygenating smoke abatement and dust control is characterized in that this boiler is made up of chimney arch water box, oxygenating spout, collection wind box, volume damper, siphon saliva box, heat pipe, smoke evacuation control valve, the inside and outside courage of boiler; On inside of boiler (13) wall of fire grate (7) top, be welded with chimney arch water box (1), chimney arch water box (1) mouth communicates with the outer water layer of inside of boiler (13), on corresponding inside of boiler (13) wall in the top of chimney arch water box (1), be welded with siphon saliva box (11), siphon saliva box (11) mouth communicates with the outer water layer of inside of boiler (13), and the top of siphon saliva box (11) is welded with some heat pipes (14); Fire grate (7) top inner bag (13) and outside be welded with oxygenating spout (2) between the courage (12), locate welding collection wind box (3) at pot furnace outside-lining (12) oxygenating spout (2), and on collection wind box (3), have eyelet welding and tap into air port (5), the middle part of air inlet (5) is volume damper (4) fixedly.

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