CN2388537Y

CN2388537Y - Vertical smokeless boiler

Info

Publication number: CN2388537Y
Application number: CN 98249093
Authority: CN
Inventors: 张延鳌
Original assignee: ZHANG YAN'AO
Current assignee: ZHANG YAN'AO
Priority date: 1998-11-27
Filing date: 1998-11-27
Publication date: 2000-07-19
Anticipated expiration: 2008-11-27

Abstract

The utility model relates to a vertical smokeless boiler, which has the structure and the working characteristic that coal is distributed and combusted by a fire grate (4) to be rotated in a coal bucket (8), and smoke combusting in a precombustion chamber (2) is integrally sent to the lower part of the fire grate (4) through a return flue (3) and an air inlet spray head (6) to be carried out secondary combustion. When the coal is rotated to a normal combustion chamber (7), the coal has no smoke, and when the coal is rotated to an ash outlet (10), the coal is completely combusted out and is discharged.

Description

Vertical less boiler

This patent relates to the vertical less boiler of a cover utility model; To occupy sizable ratio range of application extremely wide for vertical handwarmer in heating drinking-water heating boiler field.

Background technology:

Though that existing various vertical hand-fired boiler has is cheap, install and use advantages such as simple, but because manual stoking, cause the coal seam blocked up and inhomogeneous, black smoke is billowing when leading to fiery stoking, serious environment pollution, and because of manual stoking ash disposal labour intensity is big, burning of coal is incomplete, unreasonable, causes the vertical boiler thermal efficiency very low.As not putting into the melting pot, country comes New Times of straight attention more to environmental protection, and this class vertical boiler has the trend that is eliminated greatly; but it is inexpensive because of it; practical wide generally can not thoroughly ban use of again, for this reason, this patent has carried out rational Design on Plane on a large amount of experiment basis.

The purpose of this patent is:

One, keeps former circular body of heater, simply constructed characteristics, the mechanism of supporting machinery burning.

Two, match mechanism is simple and practical as far as possible cheap.

Three, make it burn that various bituminous coal are not smoldered or over-emitting black exhaust not.

Four, burning is complete, and it is high that the thermal efficiency is wanted.

Five, functional reliability height, long service life, easy access.

Six, applied widely, can be used for various Industrial Boilers.

The technical scheme of this patent is: by the unreasonable burning of the vertical handwarmer of thorough improvement, make coal ignite to discharge to become and clocklike rationalize burning with the mechanization combustion system to after-flame from the automatic continuous combustion chamber that enters, simultaneously the combustion chamber is divided into and gives combustion chamber and normal combustion chamber two parts, whole flue gases are drawn back with the air of sending into sent into the fire grate bottom in period of smoldering at new coal combustion initial stage, it is burnt once more, thereby realize smokeless combustion.

Beneficial effect:

Because this combustion system can reach idealized completing combustion clocklike by regulating coal seam thickness fire grate rotating speed and intake, adds the chance that the combustible in the flue gas is burnt again, its thermal efficiency must improve a lot than handwarmer.Because advance the coal ash discharge and carry out continuously generally must not leading to fire, make the fire grate diameter to increase arbitrarily again, promptly the evaporation capacity of the vertical boiler of this device can from little drinking water boiler greatly to several tons/time more than and replace existing various (comprising horizontal) Industrial Boiler.Rotate little many of flexible power and metal consumption because of its fire grate simple structure, the horizontal boiler that its cost is identical with existing evaporation capacity is compared and will be hanged down 30%.

In addition, the flame temperature that rotates to everybody because of this combustion system fire grate is progressively reducing, and adjustable, therefore created feasibility condition, finally realizing ideal burning and the idealized inexpensive purpose of high effective smokeless of conducting heat for the design of " heat pipe boiler " (because of the heating of heat pipe hot arc has the temperature limit).

The concrete structure of utility model is provided by the following drawings and embodiment:

Accompanying drawing is the partial sectional perspective view of vertical less boiler, comprises the general assembly drawing of furnace body and supporting rotary fire grate transmission device.

Embodiment:

(1) is furnace body among the figure, giving combustion chamber (2) is communicated with air-returen flue (3) air intake shower nozzle (6) sealing, coal-fired in coal bunker (8), under the driving of speed reducer with high transmission ratio (5) (patent description is arranged in addition), be distributed in new coal on the grate surface uniformly during with very slow speed rotation when rotary fire grate (4), ignited simultaneously, its coal seam thickness is adjustable (not drawing among the figure).Coal-fired in the combustion process of giving combustion chamber (2), its flue gas is all sent into the fire grate bottom by second-time burning by air-returen flue (3) under the gravitation of air intake shower nozzle (6).When fire coal enters normal combustion chamber (7), be smokeless incandescent flame and emit the highest caloric value.When going to ash hole (10), coal after-flame fully becomes the lime-ash discharge.Among the figure (9) for the furnace body bearing have three uniform.

Claims

1, vertical less boiler, by furnace body (1), give that (9) three of combustion chamber (2), normal combustion chamber (7), air-returen flue (3), rotary fire grate (4), speed reducer with high transmission ratio (5), air intake shower nozzle (6), coal bunker (8), furnace body bearings are uniform, ash hole (10) is formed, the feature of this device is: the combustion chamber is divided into gives combustion chamber (2), normal combustion chamber (7) two parts, coal bunker (8) places the porch of giving combustion chamber (2).Giving combustion chamber (2) is communicated with air-returen flue (3) air intake shower nozzle (6) sealing.

2, vertical less boiler according to claim 1 is characterized in that: give combustion chamber (2) and can adopt board-like with normal combustion chamber (7) or the separation of tubular type waterwall, also can adopt refractory material to separate.

3, vertical less boiler according to claim 1 is characterized in that: rotary fire grate (4) is formed the machine driving relation with speed reducer with high transmission ratio (5).

4, vertical less boiler according to claim 1 is characterized in that: the air-returen flue that gives combustion chamber (2) can be made up of＞1 multitube.