CN2323276Y - Natural circulation type coal hot-air stove - Google Patents

Abstract

The utility model relates to a natural circulation type coal hot-air stove, which takes outdoor combustion air, and reduces the entrance of cold wind into a room. The air is heated by the preheating chamber of the stove which has a four-layer-typed stove core, few or no combustible in slag, a high hearth temperature, and an annular flue. Besides, the double-layer wind channel is heated inside and outside for the stove whose upper section is merged for wind exhaustion. The utility model has the advantages of large heating surface, high wind temperature, low smoke temperature, heat driving, natural circulation, no use of electricity and an average room temperature, and has a dual-purpose for heating and cooking.

Description

Natural Circulation moulded coal hot-blast stove

The utility model is a kind of heating-cooking dual-purpose type coal furnace that aims at the middle and primary schools classroom, office, medium and small shop and the home interior that do not possess central heating.Especially hot blast Natural Circulation, room temperature is even everywhere; Outdoor collecting folk songs reduced cold air and infiltrated indoor; Combustion chamber is adorned four stratotype coals, and burning is complete, and available residue preheated air improves furnace temperature.

Pass through the moulded coal stove of usefulness at present, one is the hot-water heating stove, installs to take money, and radiator takes up room more, influences the room and arranges; Two is traditional coal stove, need place in the emphasis heating room, low more from stove temperature far away more, to boil water cook between heating in very inconvenience.More than two class stoves burnings all collect folk songs from indoor, outdoor cold wind is entered the room additional, has reduced room temperature relatively; Three stratotype coal combustions still have not cinder combustible in the residue, waste energy, and combustion air is without preheating, and stove hall temperature is low.

The purpose of this utility model, provide a kind of moulded coal stove and accessory, it can not only be as existing moulded coal stove and accessory, satisfy the heating-cooking demand, and it is more easy for installation than hot-water heating stove, cheaply, take up space less, it is compared with dual-purpose reflection-type coal stove with traditional coal stove, between heating when big (as classroom office), temperature is not subjected to the distance affects from stove everywhere, and can be loaded on kitchen or inner room and warm braw is sent between main heating, both made between main heating indoor temperature everywhere even, can avoid again boiling and burn meal the influence between main heating, it is indoor to reduce the outdoor cold air infiltration in a large number, improves room temperature relatively.Four stratotype coals prolong burning the time of moulded coal, combustible in refuse content is extremely low, and the surplus pad preheated air of available slag makes that temperature improves in the stove, and moulded coal fully burns and energy savings, thereby a kind of quick for installation, cheap, energy-conservation, efficient, moulded coal stove and accessory that fire-sealing time is long is provided.

This is practical to be to realize like this, be equipped with on the base of slag bucket, body of heater shell and interior cover are installed, are incubated with cement expanded perlite successively from bottom to top between shell and the interior cover, with fire-resistant concrete sealing, outer casing underpart is opened return air inlet, open cinder hole on the inherent base of interior cover, the sealing of falling the bell jar, and with fire-resistant concrete insulation, fire door is established in the front, and side (also can in the back) establishes the outdoor air inlet that butterfly valve is housed.Up be fire bars, combustion chamber and the fire banking-up board when banking up a fire successively.Combustion chamber and interior inner room are with the insulation of aluminosilicate refractory fiber felt, above with fire-resistant concrete sealing.Shell and interior cover all connect with the stone or metal plate for standing a stove on as a precaution against fire socket joint, fix with screw.Floss hole is opened on interior cover top, join with horizontal chimney and upright ellipse garden shape chimney, upright chimney is inside and outside two-layer, is flue in the interlayer, is discharged by garden, top shape exhaust opening, be the air channel inside and outside the flue, outermost layer is that air duct and the following horizontal air duct that is installed on the shell join, and shunt in the bottom in the air channel, converge mutually by last horizontal airduct to top, discharge by hot-air mouth.

Below in conjunction with accompanying drawing the utility model is described further:

Fig. 1 is a vertical view of the present utility model.

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

Fig. 3 is cigarette of the present utility model, wind flow chart.

Among the figure: 1. in fire-resistant concrete 4. cement expanded perlites of base 2. slag buckets 3. 5. fire bars 6. fire-resistant concrete 7. combustion chambers 8. aluminosilicate refractory fiber felts 9. shells 10. on 11. times horizontal air duct 12. horizontal chimneys 13. upright air ducts 14. upright chimney shells 15. upright chimney inner casing 16. exhaust openings 17. of cover horizontal air duct 18. hot-air mouths 19. screws 20. fire banking-up boards 21. stone or metal plate for standing a stove on as a precaution against fires 22. fire-resistant concrete 23. outdoor wind inlets 24. fall bell jar 25. return air inlets 26. fire doors

Fig. 1 is a vertical view of the present utility model.Slag bucket (2) is installed in the base (1), and combustion air enters in the stove from the outdoor air inlet (23) that is installed on stove outer covering (9) and the interior cover (10).Flue gas is discharged from the exhaust opening (16) at top.Mark visible stone or metal plate for standing a stove on as a precaution against fire (21) among the figure, following horizontal air duct (11).Upright air duct (13).Hot blast is discharged from hot-air mouth (18).

Among Fig. 2, on the base that slag bucket (2) are housed (1), body of heater shell (9) and interior cover (10) are installed, between shell (9) and the interior cover (10), from bottom to top successively with cement expanded perlite (4) insulation, with fire-resistant concrete (6) sealing.Return air inlet (25) is opened in shell (9) bottom, opens cinder hole on the inherent base of interior cover (10) (1) end face, uses bell jar (24) sealing, and is incubated with fire-resistant concrete (3).Fire door (26) is established in the front, and the outdoor air inlet (23) that butterfly valve is housed is established in the side, is fire bars (5) from bottom to top successively in the interior cover (10).Combustion chamber (7) and the fire banking-up board of using when banking up a fire (20).Be incubated with aluminosilicate refractory fiber felt (8) between combustion chamber (7) and interior cover (10), above with fire-resistant concrete (22) sealing.Shell (9) and interior cover (10) all and stone or metal plate for standing a stove on as a precaution against fire (21) socket joint join, fixing with screw (19).Floss hole is opened on interior cover (10) top, with horizontal chimney (12) and upright chimney shell (14) and upright chimney inner casing (15) welding, is flue between interior smokestack interlayer, and cigarette is discharged from top exhaust opening (16).The road junction of blowing on the stove outer covering (9), with horizontal air duct (11) welding down, upright air duct (13) lower end cover plate opening and the sealing of exhaust opening (16) outer wall, outer with upright chimney shell (14) in the upright chimney inner casing (15) all is the air channel, flue and upright chimney shell (14) welding are passed by last horizontal air duct (17) in the air channel in the top, the hot blast in air channel converges with the hot blast in outer air channel in making, and discharges from the hot-air mouth (18) that is installed on the upright air duct (13).

Fig. 3 is a cigarette of the present utility model.The wind flow chart, the flow process of dotted arrow indication cigarette among the figure, during normal combustion, close fire door (26) and fall bell jar (24), open the butterfly valve on the outdoor wind inlet (23), combustion air enters, pass fire bars (5) and enter combustion chamber (7), under top stone or metal plate for standing a stove on as a precaution against fire (21), go into to stand rising between chimney shell (14) and the upright chimney inner casing (15) through horizontal chimney (12), discharge from exhaust opening (16).The flow process of solid arrow indication wind among the figure.Room air enters between the shell (9) of stove and the interior cover (10) from return air inlet (25) and rises to stone or metal plate for standing a stove on as a precaution against fire (21), enter down horizontal air duct (12), separately enter within the upright chimney inner casing (15) and outside the upright chimney shell (14) with upright air duct (13) within two bursts of air channels, in strand wind rise to that flue is passed in the top from last horizontal air duct (17) and silent partners wind converges, discharge from hot-air mouth (18).Form the heat power Natural Circulation with room air.

Owing to take such scheme, compare with the GENERAL TYPE coal furnace, be characterized in: combustion air from In the outdoor direct introducing stove, prevent that cold air from entering the room. Four stratotype coal combustions, combustibles in the slag is humble, The fire box temperature height is economized on coal, and fire-sealing time can reach more than 17 hours. Inner room is established folder in the body of heater shell Layer, the ring-type flue, inside and outside two bursts of air channels, heating surface (area) (HS is big, the wind-warm syndrome height, exhaust gas temperature is low, heat Power is big, can form strong Natural Circulation than big room, guarantees that temperature is even in the room everywhere. Be Classroom. The desirable heating coal-fired stove and accessory of office and middle and small store also can be as domestic heating. The stove and accessory that cooking is dual-purpose.

Claims (3)

1, a kind of Natural Circulation moulded coal hot-blast stove is characterized in that: establish the air channel between block furnace shell and circular inner casing, and the flue in the middle of horizontal air channel encircles, upright air channel is divided into inside and outside air channel, and flue is become annular.

2, Natural Circulation moulded coal hot-blast stove according to claim 1, it is characterized in that: establish return air inlet on the stove outer covering, the chimney upper side is established hot-air mouth.

3, Natural Circulation moulded coal hot-blast stove according to claim 1 is characterized in that: establish outdoor wind inlet on the stove outer covering under the fire bars, again toward dividing into down bell jar.

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