CN2509448Y - Energy-saving efficient coal-burning stove - Google Patents

Abstract

The utility model provides an energy-saving efficient coal-burning stove for cooking for the urban and rural residents. The stove changes the structure way of arranging a water jacket in the hearth in the past and consists of a double interlayer with an inner interlayer and an outside interlayer(3,4) arranged on the side wall of a furnace body(1). The outside interlayer(4) and a furnace cover(17) are arranged inside two heat insulation layers(5,6), and the top of the furnace body(1) is also provided with a heat interchanger(9) which is internally provided with a water channel(10) and a smoke and fire channel(11). The stove not only provides enough air for sufficient burning of the fuel, effectively increases the hearth temperature and reduce the heat leakage, so as to sufficiently use the afterheat, and effectively increases thermal efficiency and high energy-efficient; but also avoids the occurring of steeping fire and smouldering fire. When compared with the prior coal-burning stove, the utility model has the advantages of an original design, simple structure, easy operation and easy manufacturing. The stove also has the advantages of small hearth, small amount of burning coal, large blaze, small smoke and dust, low cost, low investment, fast effect, long service life and easy popularization.

Description

The efficient energy-saving coal furnace

Technical field: the utility model relates to a kind of urban and rural residents for cooking the coal furnace that heating etc. are used.

Background technology: the stove critical facility that concerning the northern area of China does not have the urban and rural residents of central heating, is absolutely necessary.What urban and rural residents used winter for a long time can cook, and the coal furnace that can connect radiator again is by the body of heater that has ventilating opening, fire grate, and the chuck (being commonly called as water jacket) of body of heater inside (both burner hearths) and outer tube etc. are formed.This stove in use chuck must often feed cold water directly heating take away a large amount of heats fire box temperature obviously reduced.Can not satisfy so just that fuel combustion is temperature required to produce burner hearth to infuse fire, smouldering fire phenomenon, especially under the not too prosperous situation of stove fire, very easily stove fire be infused and gone out.Thereby the reduction thermal efficiency.Meanwhile, still unburnt in a large number fuel can directly be discharged from flue, has so both wasted fuel and also will produce a large amount of smoke pollution environment.Because the outlet flue position limits, furnace flame can not fully vertically contact with the bottom of a pan, but shape is taken away by chimney crosswise, thereby not only wastes fuel and also influence the thermal efficiency.

Summary of the invention: the purpose of this utility model is in order to solve fuel saving to greatest extent, and sufficient combustion reduces and pollutes, and infuses fire, smouldering fire phenomenon when avoiding burning, and effectively improves the problem of the fire box temperature and the thermal efficiency and provides a kind of, the efficient energy-saving coal furnace.

This utility model comprises body of heater, fire grate, bell, and the measure of taking is that sidewall of the furnace body is made as double sandwich, in outside sandwich and bell insulating is set, and also being provided with at the body of heater top in one is the heat exchanger of current, fireworks channel.

This utility model is owing to taked the heat exchanger structure at body of heater top, add the combination of double sandwich, insulating and other part, can not only provide full combustion of fuel required enough air, significantly improve fire box temperature and reduce heat and run off, the pyrotechnics waste heat is fully used, initial estimate can strengthen heating surface area more than 6 times, effectively improves the heating efficiency efficient energy-saving, and infuse fire, smouldering fire and the flue that can avoid existing coal furnace to produce are hung phenomenons such as white, icing.It compare with existing coal furnace novel, simple in structure, easy to use, be easy to make.Have also that burner hearth is little, fire coal less, the flame height, flue dust is little, cost is low, small investment, instant effect, life-span are long, easy advantages such as popularization.

Description of drawings: Fig. 1 is the overall structure schematic diagram of efficient energy-saving coal furnace.

The specific embodiment: this efficient energy-saving coal furnace (referring to Fig. 1) is the double sandwich structure that existing body of heater 1 part of cartridge type body of heater 1 its fire grate more than 2 is made as intraformational bed 3 and outside sandwich 4, insulating 5 is arranged in the outside sandwich 4, the two ends up and down of double sandwich 3,4 all encapsulate one with upper and lower annulus 6,7, are provided with equally distributed micropore and arc on last annulus 6 surfaces and hide cigarette angle 8.And be provided with circumferential round near top and the two side of forming outside sandwich 4 respectively near the bottom in the two side of forming intraformational bed 3.Make inside and outside interlayer 3,4 form the air channel.At this body of heater 1 top is a heat exchanger 9.This heat exchanger 9 is to be that a madial wall is provided with the annular cylinder that mouth 12 lateral walls into can be provided with a fire door and constitutes for current, fireworks channel 10,11 its outsides in one.The water stream channel 10 of this heat exchanger 9 with take over 13,14 and fixedly connected, and fireworks channel 11 with advance mouth 12 and outlet flue 15 links.In these heat exchanger 9 center of top is to be the bell 17 of insulating 16 in being provided with.

This stove in use, air enters horizontal fire grate 2 from bottom ventilating opening 18, it is effectively combustion-supporting to produce inertia.Simultaneously air also flows by the air channel that the micropore on the circle ring on inside and outside interlayer set round of 3,4 sidewalls and interlayer 3,4 tops forms, thereby quickens the flowing velocity of flue gas, for the different phase of fuel combustion provides enough air quantity.Under this air quantity effect, flare not only in the body of heater 1 inner burner hearth internal combustion that forms, also sees through inside and outside interlayer 3,4 micropores from last annulus and gets out, and makes still unburnt fuel be able to abundant burning under its effect.The thermal-flame of burning and flue gas form eddy current through hiding blocking of cigarette angle 8 at this, (effectively prolong the holdup time, so that flue gas makes full use of), slowly by advancing the fireworks channel 11 that mouth 12 enters heat exchanger 9, discharge from outlet flue 15 more then, simultaneously with the heating of the current in the water stream channel 10.When cooking meals with this stove, the thermal-flame in the burner hearth and flue gas directly contact the bottom of a pan and heat exchanger 9 to its heating and with waste heat recovery.When not cooking meals, the thermal-flame and the flue gas that cover in bell 17 (owing to establish insulating 5,16 in bell 17 and the outside sandwich 4, can stop heat convection current, conduction, width of cloth jet to lose, the improve fire box temperature) burner hearth all are used for heating heat exchanger 9 for the radiator heating.Effectively improve the thermal efficiency.But this stove is burning inferior coal both, also can suit measures to local conditions, and selects other fuel such as straw corn ear, and is economical and practical.

Claims (3)

1, a kind of efficient energy-saving coal furnace, comprise body of heater (1), fire grate (2), bell (17), it is characterized in that body of heater (1) sidewall is the double sandwich structure of inside and outside interlayer (3,4), be provided with insulating (5,16) in outside sandwich (4) and the bell (17), it is the heat exchanger (9) of current, fireworks channel (10,11) that body of heater (1) top also is provided with in one.

2, efficient energy-saving coal furnace according to claim 1, the upper/lower terminal that it is characterized in that inside and outside interlayer (3,4) encapsulates one with upper and lower two annulus (6,7) respectively, last annulus 6 surfaces are provided with micropore and hide cigarette angle (8), and by the bottom circumferential round are set by top and outside sandwich (4) two side in intraformational bed (3) two side respectively.

3, efficient energy-saving coal furnace according to claim 1 is characterized in that heat exchanger (9) is that to establish water stream channel (10) and fireworks channel (11), outside in one be that a madial wall is provided with into mouth (12), lateral wall and can establishes the circle ring column of a fire door and constitute.