CN2348305Y

CN2348305Y - Thermal conduction coal three-purpose boiler

Info

Publication number: CN2348305Y
Application number: CN 98218276
Authority: CN
Inventors: 王学江
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-08-21
Filing date: 1998-08-21
Publication date: 1999-11-10
Anticipated expiration: 2008-08-21

Abstract

The utility model relates to a heat conduction briquette three-purpose boiler, comprising a boiler outer shell, a boiler hearth, a burning chamber, a heat exchange body and a smoke channel. The utility model is characterized in that the heat exchange body is composed of the sleeve pipe of a heat conduction pipe sleeve pipe and the lower part of the sleeve pipe of a secondary smoke return pipe are communicated by a transverse connecting pipe and a boiler hearth jacket; the heat conduction pipe is connected in the sleeve pipe in series; two heat exchange bodies are heated by two surfaces; the utility model has the advantages that the heat quantity is fully utilized; the heat efficiency is high; the heat efficiency of the boiler of 0.5 ton achieve more than 79 %; the energy saves 30 %; the volume is small; the exhaust smoke achieves environment-protection requirement; the utility model is suitable for heating, hot water, bathing, industrial heating, baking, etc.

Description

The thermal conductance Moulded Coal Three-Purpose Boiler

The utility model relates to a kind of boiler.

At present, boiler ubiquity below two tons that the thermal efficiency is low, the common fault of smoke evacuation severe contamination atmosphere, recent many cities are Air Pollution prevention and control, hereinafter stop the diffusing coal of burning in boiler below two tons, advocate fuel oil, combustion gas, combustion coal, but fuel oil, combustion gas operating cost are higher, and a lot of enterprises hold and can't stand.Utilize former burning in boiler moulded coal combustion efficiency bad again, reduced the power of boiler.

The purpose of this utility model provides a kind of thermal conductance Moulded Coal Three-Purpose Boiler, improves boiler thermal output, saves the energy, reduces atmosphere pollution, makes oil, coal, three kinds of fuel of gas general.

Thermal conductance Moulded Coal Three-Purpose Boiler technical scheme of the present utility model is: comprise stove outer covering, burner hearth, combustion chamber, heat exchanger, flue, it is characterized in that:

(1), heat exchanger goes back to smoke pipe sleeve pipe bottom and is communicated with by cross pipe and burner hearth chuck and forms by being distributed on hanging heat pipe sleeve pipe in the burner hearth and secondary;

(2), the heat pipe permutoid is distributed in burner hearth center and inner ring, be the heat pipe string in sleeve pipe, form water jacket between two pipes, the heat pipe lower end is outstanding, puts in the upper combustion chamber;

(3), secondary returns smoke pipe sleeve pipe heat exchanger and is distributed in the burner hearth outer ring, be secondary smoke pipe string in sleeve pipe, form water jacket between two pipes, secondary smoke pipe end opening passes to upper combustion chamber, suitable for readingly directly is communicated with secondary collection smoke box;

(4), burner hearth is smoke box, heat exchanger, upper combustion chamber, lower combustion chamber, fire grate, pond hawk from top to bottom successively, secondary air channel is positioned at reducing place that lower combustion chamber leads to upper combustion chamber, one time airduct is positioned at above lower combustion chamber's fire grate, there is last fire door in upper combustion chamber, there is middle fire door in lower combustion chamber, and following fire door is arranged at fire grate top.

Split fire head is installed in a heat pipe bottom in the middle of the above-mentioned heat pipe sleeve pipe heat exchanger.

Above-mentioned lower combustion chamber bottom is a vertical wall, and top is the taper closed-entry.

Above-mentioned stove outer covering is vertical or horizontal.

Above-mentioned fire grate is travel(l)ing grate or fixed fire grate.

The course of work of the present utility model: after coal was lighted by lower combustion chamber, coal carried out destructive gasifying under the high temperature anoxia condition when the coal seam reaches certain thickness, recurred to burn after coal gas pours upper combustion chamber and secondary wind mixes.This moment, chimney be can not see black smoke, utilize radiant heat directly-fired kiln thorax jacket water (J.W.) and heat pipe sleeve pipe and secondary to return the interior water of smoke pipe sleeve pipe, at the same time, high-temperature flue gas impacts to top, be flushed to the top after, return downwards again, enter secondary and return smoke pipe, upwards enter secondary collection smoke box again, emerge through chimney, above process forms three backhauls of high-temperature flue gas naturally, the flue gas flow lengthening, enlarge the heat convection amount, in addition, the heat pipe bottom is heated, and the back is direct upwards conducts heat, directly heat is passed to the water between heat pipe and the sleeve pipe, form the water that water between the heat pipe sleeve pipe and secondary return between the smoke pipe sleeve pipe thus and all reach two-sided being heated simultaneously, quick heating effectively utilizes heat.

The utility model has the advantages that:, make full use of heat, thermal efficiency height because of the heat exchanger that adopts heat pipe sleeve pipe and secondary to return the smoke pipe sleeve structure is two-sided being heated.0.5 the ton boiler thermal output reaches more than 79%, more energy-conservation more than 30% than same model conventional boiler, because of the change of heat exchange method has reached littler by 1/2 than same model conventional boiler volume, for example 0.5 ton of boiler can be saved 2 tons of steel, lower combustion chamber, top are the mode that throat structure has changed the direct combustion heating of conventional boiler coal, improving fire grate and combustion intensity reaches abundant burning and can obtain the smoke abatement and dust control purpose, smoke evacuation need not add device for eliminating smoke and dust, just can reach the environmental requirement discharge standard.If the utility model gets final product fuel oil, combustion gas at last fire door install combustion device, need not change the type of furnace and just can make coal, oil, three kinds of fuel of gas exchange general.This stove can be widely used in and supply boiling water, have a bath, heating; Industrial stoving, heating, hot pressing etc.

Below in conjunction with drawings and Examples the utility model is described in detail:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is Figure 1A-A cross-sectional view.

As shown in the figure, this thermal conductance Moulded Coal Three-Purpose Boiler, comprise stove outer covering, burner hearth, combustion chamber, heat exchanger, secondary collection smoke box, it is characterized in that: heat exchanger goes back to smoke pipe sleeve pipe 3 bottoms and is communicated with by cross pipe 4 and burner hearth chuck 13 and forms by being distributed on hanging heat pipe sleeve pipe 2 in the burner hearth and secondary; The heat pipe permutoid is distributed in burner hearth center and inner ring, is that heat pipe 6 is gone here and there in sleeve pipe, forms water jacket between two pipes, and the heat pipe lower end is outstanding, puts in the upper combustion chamber 7; Bowl-type split fire head 14 is installed in a heat pipe bottom in the middle of the heat pipe sleeve pipe heat exchanger.Secondary returns smoke pipe sleeve pipe 3 heat exchangers and is distributed in the burner hearth outer ring, be secondary smoke pipe 5 string in sleeve pipe, form water jacket between two pipes, secondary smoke pipe end opening passes to upper combustion chamber 7, suitable for readingly directly is communicated with secondary collection smoke box 1.

Burner hearth is secondary collection smoke box 1, heat exchanger, upper combustion chamber 7, lower combustion chamber 9, fire grate 16, pond hawk 12 from top to bottom successively, secondary air channel 15 is positioned at reducing place that lower combustion chamber leads to upper combustion chamber, one time airduct 17 is positioned at above lower combustion chamber's fire grate, there is last fire door 8 in upper combustion chamber 7, there is middle fire door 10 in lower combustion chamber 9, and following fire door 11 is arranged at fire grate 16 tops.Lower combustion chamber 9 bottoms are vertical wall, and top is the taper closed-entry.Stove outer covering is vertical or horizontal, and stove outer covering can increase heat-insulation layer, and is furnished with intake-outlet, Pressure gauge, safety valve, sewage draining exit.When boiler is the 2-6 ton hour, fire grate can adopt travel(l)ing grate machinery to advance coal, and machinery is slagged tap; When boiler is to adopt below 1 ton the time fixed fire grate hand to burn formula.

Claims

1, a kind of thermal conductance Moulded Coal Three-Purpose Boiler comprises stove outer covering, burner hearth, combustion chamber, heat exchanger, flue, it is characterized in that:

2, thermal conductance Moulded Coal Three-Purpose Boiler according to claim 1 is characterized in that: split fire head is installed in a heat pipe bottom in the middle of the described heat pipe sleeve pipe heat exchanger.

3, thermal conductance Moulded Coal Three-Purpose Boiler according to claim 1 is characterized in that: described lower combustion chamber bottom is a vertical wall, and top is the taper closed-entry.

4, thermal conductance Moulded Coal Three-Purpose Boiler according to claim 1 is characterized in that: described stove outer covering is vertical or horizontal.

5, thermal conductance Moulded Coal Three-Purpose Boiler according to claim 1 is characterized in that: described fire grate is travel(l)ing grate or fixed fire grate.