CN2273841Y - Self-combustion type boiler - Google Patents

Abstract

The utility model relates to a self-combustion type boiler which can mainly solve the problems of low heat efficiency and black smoke overflowing from a chimney of the existing boiler. The utility model adopts the structure that a hot water chamber 8 is arranged on the periphery of a combustion chamber 18, and an inverted U-shaped double-layer metal arched plate and an inverted V-shaped grate are fixed in the combination chamber; a warm water chamber 9 is arranged on the middle layer of the arched plate; a precombustion chamber 15 is formed between the arched plate and the grate. The utility model has the advantages of thorough combustion, no black smoke and high heat efficiency; the utility model can be used for boilers for supplying hot water, showering, heating, etc.

Description

The self-burning type boiler

The utility model relates to a kind of combustion apparatus, is a kind of self-burning type boiler specifically.

At present, self-burning type boiler, the anthracite vertical boiler that generally uses at home, mostly be double grate anti-flame formula structure and single fire grate tipping bucket formula structure, for example the CN922062307 patent is exactly the double grate light stove of getting fire, and the CN922305617 patent is exactly single fire grate tipping bucket formula boiler.The design feature of the anti-flame stove of double grate is that the combustion chamber is divided into two-layer fire grate, two fire doors, the both sides of smoke flue in the middle of upper and lower fire grate.During use, new coal is tapped to from last fire door on the upper fire-grating of combustion chamber, colludes descending fire door to collude following upper fire-grating gleed piece, drop into lower fire grating and enter second-time burning with fire.This stove is because structure is a double-layer grate, two-position igniting, thereby the difficulty of lighting a fire, simultaneously since upper fire-grating burns out easily in the middle of being in up and down fiery high temperature, so cause and want blowing out to keep in repair in the work, replacing; In addition because the boundary of the anthracite of this stove and black coal is indeterminate, thus black coal collude fall after, chimney over-emitting black exhaust then, and when the normal combustion cigarette, chimney often has grey cigarette, when banking up a fire, the equal over-emitting black exhaust of fire door on chimney and the boiler.

Single tipping bucket formula boiler, Combustion chamber design has the gradient slightly fire grate of one deck, and smoke flue is located at the rear side on the fire grate, and smoke flue and preceding precombustion chamber separate with arch bar, and smoke flue place is down opened the door that pokes fire.Coal is tapped to the pre-right chamber of fire grate from tipping bucket coal mouth,, colludes from goalkeeper's precombustion chamber anthracite that pokes fire with fire and to collude to overheavy firing chamber and smoke flue behind the 10-15 centimetre through combustion thickness, carries out normal combustion.This stove still has the following disadvantages:

When 1. burning, anthracite is down, and black coal is last, after black coal colludes, and over-emitting black exhaust, during normal combustion, the cigarette fontanel has the white cigarette of dust;

2. if smoke flue is stifled full, then increased flue resistance, caused the precombustion chamber burning difficulty of front with anthracite, and underpower;

3. if a small amount of anthracite is colluded into the smoke flue place, front precombustion chamber air quantity is increased, a large amount of black smokes are emerged from chimney through smoke flue, and contaminated environment causes the thermal efficiency to descend.

The purpose of this utility model is to avoid the deficiency of above-mentioned existing boiler, provides a kind of easy to operate, and burning is thorough, the self-burning type boiler that thermal efficiency height, flue are smoldered and be higher than the national environmental protection primary standard.

Realize that the utility model purpose technical scheme is on the basis of existing self-burning type boiler the structure of its combustion chamber to be improved.Whole boiler mainly is made of low temperature hydroecium, high temperature hydroecium, combustion chamber three parts.The low temperature hydroecium is located at the periphery of flue tube, is fixed with arch bar in the combustion chamber, and two of arch bar is quirk, and quirk communicates with chimney, and the below of arch bar is equipped with fire grate.It is characterized in that the boiling water chamber is located at the periphery of combustion chamber, the arch bar of combustion chamber is an inverted U double-sided metal arch bar, the intermediate course of arch bar is a warm water chamber, the fire grate of arch bar below be horizontal shape with inverted V-shaped in the polymorph fire grate of one, the tip of fire grate and the formation precombustion chamber of the space between the arch bar.

Polymorph fire grate in the such scheme is to be installed by four single fire grates to form, and wherein the extreme higher position of inverted V-shaped summit installation parallels with the lower end of arch bar.

During normal combustion, coal is tapped to from taking the coal mouth, in precombustion chamber through heating, dry, emit volatilization and fire burns, required air flows into naturally by taking the coal mouth simultaneously.The unburned volatile matter of combustion product and part both sides below passing the anthracite course of high temperature enter in the quirk process, are burnt down fully.The anthracite piece that has fired is because inverted V-shaped fire grate planar base surface balk, sufficient and the burning of air rapidly, and constantly diminish, tail off, cause downwards two lateral movements in succession under the gravity effect of coal cinder on the inverted V-shaped fire grate inclined-plane, mutual friction during this decline, both wipe the grey shell of coal cinder, avoided the slagging scorification of coal again.At this moment in the inclined-plane of inverted V-shaped fire grate to the air that passes perpendicular to the inclined-plane, the air with horizontal shape fire grate baseplane is upward through all enters from ash hole.And the recrement after stone, fragment of brick or the blowing out in the stove can be transferred to from cleanout door.

The utility model is compared with existing two, single boiler, has following advantage:

1. the high-temperature flue gas of combustion chamber chimney directly and the low temperature pool carry out heat convection, improved the caloric receptivity of water;

2. increase the surface area in low temperature pool, reduced the surface area and the radiation loss in high temperature pool;

3. disposable coal amount is big, and fire coal from falling, need not manually often to collude anthracite from top to down;

4. easy and simple to handle, the multidirectional wind of giving, no matter it is thick and thin to take the coal seam of coal mouth, the wind resistance of giving at anthracite place can not change;

5. burning is thorough rapidly, and the appearance heat radiation is little, thermal efficiency height, experiment shows that the hot property index can reach 80%, has thoroughly solved the problem of smoldering of bituminous coal Fuel Furnace, performance indications are higher than the primary standard of national Specification, and promptly lingemann blackness approaches 0 grade, dust exhausting concentration 50-60 milligram.

Below provide preferred embodiment accompanying drawing of the present utility model.

Fig. 1 is the overall structure figure of the utility model embodiment.

Fig. 2 is the A-A cutaway view of Fig. 1 fire grate.

Among Fig. 1, the 1st, chimney, the 2nd, the cigarette of banking up a fire lid, the 5th, flue tube.The periphery of flue tube 5 is low temperature hydroeciums 6, and the lower end of flue tube 5 is fixed with combustion chamber 18.Be provided with smokestack 7 in the combustion chamber, double-level-metal is for plate 17, fire grate 11 and quirk 10.The periphery of combustion chamber is provided with boiling water chamber 8.Chimney 1 communicates with flue tube 5, the intermediate course of arch bar 11 is middle warm water chamber 9, the upper end of this chamber is provided with water at low temperature import 19, this import 19 is not by pipeline communicate with low temperature hydroecium 6 (drawing among the figure), the lower end of arch bar 17 is middle warm water outlet 16, this outlet communicate with boiling water chamber 8 (not drawing among the figure), the both sides of arch bar are quirk 10, quirk 10 communicates with smokestack 7, the below of arch bar is equipped with fire grate 11, this fire grate is that to install and fix into both sides by four split fire grates be horizontal shape, and the centre is that the horizontal shape of inverted V-shaped shape and inverted V-shaped are in the multiform shape fire grate of one.Wherein the tip of inverted V-shaped fire grate and the space between the arch bar constitute precombustion chamber 15, take be placed on precombustion chamber (take the door in the precombustion chamber front, do not draw among the figure) the black coal piece the anthracite that the fires gravity by inverted V-shaped fire grate inclined-plane and slide on the horizontal shape fire grate down automatically and burn, heat by 10 pairs of hot hydroecium of both sides quirk and medium temperature chamber.Hot gas in the boiling water chamber 8 by muffler 4 enter low temperature hydroecium 6 again to the heating of its water at low temperature, to make full use of the energy.Fiery cigarette in the quirk 10 enters flue tube 5 by smokestack mouth 7 and discharges from chimney 1.The following of fire grate 11 is grey chamber 14, and a side of grey chamber 14 has ash hole (not drawing among the figure), but but ash hole not only ash discharge but also air intake.The both sides of body of heater lower end have ash gate 12 and blow-off pipe 13, and the opposite side of boiling water chamber is provided with thermometer 21 and boiling water outlet 20.The opposite side of low temperature hydroecium 6 is equipped with water level meter base 22.Under normal circulation water outlet situation, warm water chamber 9 cold water that flows into low temperature hydroeciums 6 from water inlet pipe 24 constantly flows under the hydraulic pressure effect, therefrom warm water chamber 9 enters boiling water chamber 8 again.The upper end cover 2 of body of heater is provided with blast pipe 23, and this pipe communicates with the low temperature hydroecium, returns to the hot gas in the low temperature hydroecium 6 from boiling water chamber 8, and a part is absorbed by cold water, and a part is discharged by draining tracheae 23.

Claims (2)

1. self-burning type boiler, include low temperature hydroecium (6), boiling water chamber (8), combustion chamber (18) three parts, low temperature hydroecium (6) is located at the periphery of flue tube (5), be fixed with arch bar in the combustion chamber, the both sides of arch bar are quirk (10), quirk (10) communicates with chimney (1), the below of arch bar is equipped with fire grate, it is characterized in that boiling water chamber (8) is located at the periphery of combustion chamber (18), arch bar in the combustion chamber is an inverted U-shaped double-sided metal arch bar (17), the intermediate course of arch bar (17) is middle warm water chamber (9), and the fire grate in the combustion chamber is that horizontal shape and inverted V-shaped are the polymorph fire grate (11) of one, and the space between the tip of fire grate (11) and the arch bar (17) constitutes precombustion chamber (15).

2. according to the described boiler of claim, it is characterized in that the extreme higher position that install on fire grate (11) inverted V-shaped summit parallels with the lower end of arch bar (17).

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