CN2280221Y - Fins, combustion-aid and heat-exchange type high efficiency cooking and warming coal-saving stove - Google Patents

Abstract

The utility model relates to a fin combustion-aid and heat-exchange type high efficiency cooking and warming coal-saving stove, comprising a stove lining, an annular heat-exchanging water jacket, a communicating heat-exchanging water jacket, a steel U-shaped heat-transferring sheet, a steel ladder type heat-transferring sheet, a rectangular heat-exchanging sheet, a fin type irradiating ring, a secondary wind chamber, a secondary burning chamber and a once air door. The heat absorption and the heat transference of the stove are fast, and the functions of heat storage, heat release and heat reflection are conspicuous. The combustion system has sufficient combustion and small heat loss. The stove has the advantages of easy ignition, quick temperature rise and strong fire power. The temperature in the stove can reach 1000DEG. C when the stove is ignited 5-10 minutes. Since the structure is reasonable, the heat efficiency reaches 72%. The stove is clean and sanitary and suitable for cooking and heating of urban and rural residents.

Description

The combustion-supporting heat exchange type high-efficiency cooking of fin--heating coal-saving stove

The utility model relates to a kind of civil cooking, heating high-efficient coal-saving stove.

Existing cooking, coal-fired stove for heating, because stove combustion system and heat exchange structure collocation are unreasonable, it is insufficient to burn, the heat that produces in the burner hearth can not get fully being absorbed, and enters airspace, both wastes energy, again contaminated environment.If a kind of stove is provided with a kind of heat exchanger of efficient combustion-supporting above burner hearth, make stove and accessory fully absorb the heat that produces in the burner hearth, use heat accumulation, heat release, heat-reflecting method simultaneously, the imflammable gas that reduction is produced is fully burned, can reach and economize on coal, reduce the purpose of environmental pollution.But existing cooking, coal-fired stove for heating is because combustion system and heat exchange structure and the unreasonable purpose of economizing on coal that still do not reach of integral layout.

The purpose of this utility model is for urban and rural residents provide a kind of structure advanced person, and the novel high-efficiency cooking of being convenient to operate--heating coal-saving stove makes the resident not only be convenient to cooking but also heating, reaches and economizes on coal, and alleviates the purpose of environmental pollution.

The realization of the utility model purpose is that the combustion-supporting heat exchanger of a kind of efficient height is set above burner hearth.Not only make stove and accessory fully absorb heat, and, improve secondary combustion chamber and fire door annular heat exchanging water-jacket temperature on every side with heat accumulation, heat release, heat-reflecting method with thermal radiation and heat-conduction principle; Match with auxiliary air, the burning that promotes imflammable gas and coal with burn.

Below in conjunction with accompanying drawing the utility model is elaborated.

Fig. 1 is the full section schematic diagram of an embodiment of the utility model.Wherein: 1--furnace water jacket, 2--flue, 3--annular secondary air chamber, 4--twice aeration hole (19 are uniform), 5--annular heat exchanging water-jacket, 6--annular heat exchanging water-jacket's rectangle heat exchanger fin (12 are uniform), 7--U type heat transfer sheet (12 are uniform), 8--is communicated with heat exchanging water-jacket (totally 5), and the 9--rib-type width of cloth is penetrated ring, the 10--rib-type width of cloth is penetrated ring fin (12 uniform), 11--furnace roof water jacket, the 12--heat exchanging water-jacket that discharges fume, the 13--smokejack, 14--smoke evacuation heat exchanging water-jacket shell, 15--in-line arrangement formula heat exchanging water-jacket, 16--ladder type heat transfer sheet (totally 4), 17--grate, 18--main air intake and grey chamber, the 19--secondary air register, 20--shoot door, 21--main air intake, the 22--bell, the 23--bell, 24--bell, 25--secondary combustion chamber, the 26--outlet pipe, the 27--return pipe.

Fig. 2 be in Fig. 1 along the cutaway view of A--A line, the arrow points projecting direction.Wherein: 5--annular heat exchanging water-jacket, 6--annular heat exchanging water-jacket's rectangle heat exchanger fin (12 uniform, and this figure only draws wherein 3), (12 uniform for 7--U type heat transfer sheet, this figure only draws wherein 3), 8--is communicated with heat exchanging water-jacket (totally 5), and the 9--rib-type width of cloth is penetrated ring, the 10--rib-type width of cloth is penetrated the ring fin, and (12 uniform, this figure only draws wherein 2), 15--in-line arrangement formula heat exchanging water-jacket, 16--ladder type heat transfer sheet, the 13--smokejack, 14--smokejack heat exchanging water-jacket shell.

Fig. 3 be in Fig. 1 along the cutaway view of B--B line, the arrow points projecting direction.Wherein: 1--furnace water jacket, 2--flue, 3--annular secondary air chamber, 4--twice aeration hole (9 uniform), 19--secondary air register.

With reference to accompanying drawing, body of heater is water jacket (1), and it is cylindrical being provided with profile in body of heater, interior shape be the upper end and following all be the setting flue (2) that joins in reducing place of cone-shaped.On the flue external wall of upper portion, make secondary air chamber (3), around flue (2) top.Make 19 equally distributed twice aeration holes (4) on annular secondary air chamber wall, secondary combustion chamber (25) is led to by reducing place in this twice aeration hole.

Combustion-supporting heat exchanger is set above flue, and this combustion-supporting heat exchanger is penetrated ring (9) and is formed by annular heat exchanging water-jacket (5), annular heat exchanging water-jacket's rectangle heat exchanger fin (6), U type heat transfer sheet (7), connection heat exchanging water-jacket (8), the rib-type width of cloth.The rib-type width of cloth penetrate ring (9) by 12 rectangular fin chip width of cloth penetrate the ring fin (10) form.On the internal heating surface of annular heat exchanging water-jacket (5), 12 equally distributed annular heat exchanging water-jacket's rectangle heat exchanger fins (6) are set, this heat exchanger fin and the rib-type width of cloth are penetrated ring fin (10) and are evenly distributed on around the internal heating surface of annular heat exchanging water-jacket (5) interlacedly.The rib-type width of cloth is penetrated ring and is cast with heat-resisting cast iron and make, and outside desirable the coming out of the stove.Annular heat exchanging water-jacket (5) internal heating surface is connected with electric welding with annular heat exchanging water-jacket's rectangle heat exchanger fin (6).

12 equally distributed U shaped steel matter heat transfer sheets (7) are set on annular heat exchanging water-jacket's inwall, are provided with 5 and are communicated with heat exchanging water-jackets (8) on annular heat exchanging water-jacket's (5) outer facing the wall and meditating, wherein two at the exhaust opening place.These 2 are communicated with heat exchanging water-jackets (8) and are connected with furnace roof water jacket (11), and all the other 3 are connected with furnace water jacket (1).These 5 are communicated with heat exchanging water-jacket (8), annular heat exchanging water-jacket (5), and furnace roof water jacket (11), furnace water jacket (1) is interconnected.The body of heater top is furnace roof water jacket (11), smoke evacuation heat exchanging water-jacket (12) is set on the body of heater exhaust opening, and its inner casing is cuboid smokejack (13), and smokejack (13) has the gradient that necessarily makes progress with horizontal plane, shell (14) is smoke evacuation heat exchanging water-jacket shell, and shell (14) is perpendicular with body of heater.Smokejack (13) lining the smoke evacuation heat exchanging water-jacket is provided with two in-line arrangement formula heat exchanging water-jackets (15) that certain intervals is arranged, this water jacket and smoke evacuation heat exchanging water-jacket (12), and furnace roof water jacket (11), furnace water jacket (1) is connected.4 steel ladder type heat transfer sheets (16) that certain intervals is arranged are set on the top heat-transfer area of smokejack (13).Circular grate (17) is set below flue (2), and grate below is air channel and grey chamber (18).

Flue (2) adopts the heatproof refractory material of low heat conductivity to make.This flue heat absorption is little, and ignition, quick heating remain high temperature in flue, help the completing combustion of coal in the flue.In flue upper end reducing place 19 equally distributed twice aeration holes (4) are set, secondary combustion chamber (25) is led in this twice aeration hole.So the secondary air feed is strong, the flow velocity height is beneficial to secondary wind and mixes mutually in secondary combustion chamber (25) lining with imflammable gas, at high temperature is fully burned.Annular heat exchanging water-jacket (5) is set above flue, 12 rectangular fin chip width of cloth are set on the heating surface within it interlacedly penetrate ring fin (10) and 12 annular heat exchanging water-jacket's rectangle heat exchanger fins (6), because its distributed architecture is the rectangle heat exchanger fin that rib-type distributes, so heat absorption, the heat release area is big, heat accumulation, heat release, heat reflection function are remarkable, it passes to heat of high temperature in annular heat exchanging water-jacket's (5) the heat-transfer area and fluid with thermal radiation and heat conducting heat transfer form, has increased substantially the heat exchange function of stove and accessory.This heat exchanger fin has heat accumulation, heat release, heat reflection function, can guarantee the high temperature around secondary combustion chamber (25) and annular heat exchanging water-jacket (5) internal heating surface, thereby promote the burning of secondary combustion chamber (25) lining volatile combustible gases and auxiliary air mixture and burn.

12 equally distributed U type heat transfer sheets (7) are set on the inwall of annular heat exchanging water-jacket (5).Because it is shaped as the U type, so heat-transfer area is big, heat-transfer effect is obvious.This U type heat transfer sheet (7) has increased substantially heat transfer area in the fluid, and has strengthened the heat exchange function of annular heat exchanging water-jacket (5).

Be provided with 5 and be communicated with heat exchanging water-jackets (8) on shape heat exchanging water-jacket's (5) outer facing the wall and meditating, wherein 2 at the exhaust opening place.The high-temperature flue gas that comes out to enter smokejack in the burner hearth directly washes away the dispersion surface that exhaust opening is communicated with the heat exchanging water-jacket, so heat absorption capacity is big, the heat exchange effect is obvious.This is communicated with heat exchanging water-jacket (8) and annular heat exchanging water-jacket (5), and furnace water jacket (1) is connected, so promoted the water circulation of annular heat exchanging water-jacket (5) and furnace water jacket (1), helps heat convection in fluid.

By annular heat exchanging water-jacket (5), annular heat exchanging water-jacket's rectangle heat exchanger fin (6), U type heat transfer sheet (7), be communicated with heat exchanging water-jacket (8), the efficient rib combustion heat exchanger that the rib-type width of cloth is penetrated ring (9) composition is arranged on the burner hearth top, directly do not absorb the burner hearth width of cloth all around and penetrate heat,, guaranteed the abundant burning of coal in the burner hearth so reduced the cold degree of the water of burner hearth.This combustion-supporting heat exchanger volume is little, and heat-transfer surface is big, has reduced heat convection face and body of heater overall volume greatly.Smokejack (13) has necessarily upwards gradient with horizontal plane, and through testing and facts have proved that this fume flow resistance is little, smoke evacuation is smooth, the smoke discharging effect ideal.Being provided with 4 on the heat-transfer area of smokejack top has this heat transfer sheet of steel ladder type heat transfer sheet (16) of certain intervals to be connected with electric welding with the smokejack end face.This heat transfer sheet is simple in structure, and heat-transfer effect is obvious.This ladder type heat transfer sheet has reduced convection heating surface significantly, makes the Range structure compactness.

When this stove is ignited a small amount of fire-lighter (as about 400 grams such as dried firewood or waste paper) is put on the interior grate of stove, is put fuel such as bituminous coal or coal briquette again, lighted a fire back 5 minutes--temperature can reach 1000 ℃ in 10 minutes burner hearths.Along with temperature in the burner hearth rises gradually, open big secondary air register (19) gradually, secondary wind is entered by secondary air register, obtain preheating through secondary air chamber (3), enter secondary combustion chamber (25), mix mutually with fuel gas, at high temperature be fully burned, at this moment fire box temperature can reach 1300 ℃, can put cooking such as the pot of cooking a meal, cooking.

This stove is ignited easily, quick heating, and firepower is strong, the heating system of corresponding thermic load heating area with this stove is lighted a fire to and was heated up 30 minutes, and whole heating system fluid temperature (F.T.) can reach 90 ℃, secondary air register, the main air intake Close All gets final product with the coal banking fire simultaneously in the time of need banking up a fire.This stove has been designed to the series of products specification.

The combustion-supporting heat exchange type high-efficiency cooking of fin of the present utility model--the heating coal-saving stove has significant heat accumulation, heat release, heat exchange effect, because its thermal efficiency rational in infrastructure reaches 72%, can economize on coal compared with similar products reaches 40%--50%, uses relative clean in this furnace chamber, is convenient to the cooking heating.

The combustion-supporting heat exchange type high-efficiency cooking of the utility model fin--heating coal-saving stove is made easily, can produce in batches.Flue: cast with grey cast-iron earlier, cut into mould (model), utilize this mould (model) can produce flue in batches.The rib-type width of cloth is penetrated elder generation of the general Foundry Works of ring (10) analogue formation, and this model of combustion back is made the sand mold cast and produced in batches.Furnace water jacket, annular heat exchanging water-jacket, the smoke evacuation heat exchanging water-jacket is communicated with heat exchanging water-jacket and heat exchanger fin, utilizes 2mm or 3mm steel plate, uses the plate shearing machine blanking, and welding was made after bending was curled.At last each workpiece welding assembling is shaped.

Claims (2)

1, a kind of by furnace water jacket (1), flue (2), annular heat exchanging water-jacket (5), annular heat exchanging water-jacket's rectangle heat exchanger fin (6), U type heat transfer sheet (7), the rib-type width of cloth is penetrated ring (9), be communicated with heat exchanging water-jacket (8), smoke evacuation heat exchanging water-jacket (12) ladder type heat transfer sheet (16), secondary air register (19), the combustion-supporting heat exchange type high-efficiency cooking of fin--the heating coal-saving stove that main air intake (21) is formed, it is characterized in that annular heat exchanging water-jacket (5) is positioned at flue (2) top, 12 equally distributed annular heat exchanging water-jacket's rectangle heat exchanger fins (6) are set on the heating surface within it, this annular heat exchanging water-jacket rectangle heat exchanger fin (6) is penetrated ring fin (10) with the rib-type width of cloth and is evenly distributed on around the internal heating surface of annular heat exchanging water-jacket (5) interlacedly, the rib-type width of cloth is penetrated outside desirable the coming out of the stove of ring (9), 12 equally distributed U shaped steel matter heat transfer sheets (7) are set on the inwall of annular heat exchanging water-jacket (5), on annular heat exchanging water-jacket's (5) outer facing the wall and meditating, be provided with 5 and be communicated with heat exchanging water-jacket (8), wherein two at the exhaust opening place, smokejack (13) has the gradient that necessarily makes progress with horizontal plane, its top heat-transfer area is provided with the ladder type heat transfer sheet (16) of deciding the interval, flue (2) profile is cylindrical, interior shape is two different cone-shaped rotary bodies, join in reducing place, top on furnace outer wall is provided with annular secondary air chamber (3), on secondary air chamber (3) wall, 12 equally distributed twice aeration holes (4) are set, and twice aeration hole (4) lead to secondary air chamber (25) by reducing place.

2, the combustion-supporting heat exchange type high-efficiency cooking of fin according to claim 1--heating coal-saving stove, it is characterized in that being communicated with heat exchanging water-jacket (8) profile is flat cuboid, annular heat exchanging water-jacket (5) is connected by being communicated with heat exchanging water-jacket (8) with furnace water jacket (1).

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