CN2118243U - Chamber of multifunctional civil coal stove - Google Patents

Abstract

The utility model relates to a chamber of a civil coal furnace. A straight cage internal furnace composed of four flat iron tubes is erected in a general civil powder coal furnace. One end of the straight cage internal furnace is fixed on a furnace mouth. The other end of the straight cage internal furnace passes through a grate. Honeycomb briquettes can freely move up and down in the straight cage internal furnace. When the powder coal is burned, air is conveyed to a coal seam which is remote from the grate through vent holes arranged in the tube walls of the iron tubes. Thus, the air in the furnace is unlocked, and the fire is strong. When honeycomb briquettes are burned, an external furnace is like a cupping covered on the honeycomb briquettes. Thus, the firepower is enhanced. Thereby, the internal furnace and the external furnace are matched each other. Various honeycomb briquettes or powder coal can be burned. In addition, a protection furnace can be either large or small. Meanwhile, the utility model has various functions of high thermal inefficiency and unpowered combustion support.

Description

Chamber of multifunctional civil coal stove

The utility model relates to the shared burner hearth of a kind of diffusing coal honeycomb briquette, particularly traditional Loose-coal stove thorax is transformed into and can burns the coal that looses and can burn honeycomb briquette again, quantity of heat production is changeable, and has the commercial coal stove burner hearth of unpowered combustion-supporting multiple function.

Because promoting the use of of honeycomb briquette, traditional Loose-coal stove is eliminated, thereby brings the certain economic loss to huge numbers of families, and the honeycomb briquette stove burner hearth is little, and coal feeding amount is limited, thereby quantity of heat production is lower than Loose-coal stove, this can influence promoting the use of of honeycomb briquette undoubtedly to the area of winter by coal stove heating.

In order to solve the low defective of honeycomb briquette stove quantity of heat production, generally be the quantity that increases burner hearth, as Beijing sun the subject of knowledge and the object of knowledge, eyes and many honeycomb briquette stoves of Tsing-Hua University and some other provinces and cities' developments.But burner hearth of every increase must strengthen the cost of stove and accessory, uses also the stove and accessory trouble than single burner hearth.The massacre Loose-coal stove is not utilized again yet.

The purpose of this utility model provides a kind of improved burner hearth, and it can not only burn the coal that looses can burn honeycomb briquette again, and quantity of heat production is artificially controlled, and can will eliminate Loose-coal stove and use again.

The purpose of this utility model is achieved in that has installed vertically in the Loose-coal stove thorax that four band iron pipes form, one end is fixed in around the fire door, the other end passes the stove bamboo or wicker fence, the straight cage internal furnace of honeycomb briquette easy on and off motion therein, when requiring quantity of heat production hour, honeycomb briquette is dropped in the internal furnace, and four band iron pipes are limited to outer burner hearth central authorities with coal, are beneficial to burning of coal.When requiring quantity of heat production big, in the outer burner hearth of coal or the broken honeycomb briquette input of will loosing, four iron pipes of internal furnace are enclosed in the coal fire and have become combustion-supporting passage.

The utility model only need be installed four cast iron pipes in common Loose-coal stove thorax, so simple in structure, repacking not only is the Loose-coal stove renovation and utilization owing to the starting point simultaneously easily, mainly is the combustion characteristics of fundamentally improving Loose-coal stove thorax and honeycomb briquette burner hearth.

In diffusing coal or broken honeycomb briquette input burner hearth, four iron pipes of internal furnace are enclosed in the coal fire, burn red iron pipe with after heating in the fresh air suction line under the stove bamboo or wicker fence, the passage of opening on tube wall is transported in the coal seam away from air intake, this moment, outer burner hearth was interior as having put into a coal that has four cores, thereby whole burner hearth air is unimpeded, and the coal combustion is abundant, and firepower is strong.Simultaneously because four iron pipes are vertical installations, thus very little to the resistance of air, be not afraid of the obstruction of cinder, coal ash to pipeline yet, promptly be to have clogging to remove also to be easy to.

When honeycomb briquette is put into burner hearth, internal furnace is limited to outer burner hearth central authorities with honeycomb briquette.Formed a big down little conical cavity between outer burner hearth and the honeycomb briquette, the air of this bottom, chamber being lightened by stove fire heating and being pushed by diminishing outer burner hearth when upwards flowing and flow out from fire door rapidly, make the air velocity in the burner hearth accelerate, thereby reach combustion-supporting purpose, this moment, outer burner hearth played the effect of cupping glass.

Concrete structure of the present utility model is provided by following example and accompanying drawing thereof.

Fig. 1 is the profile according to the multifunctional civil Coal stove chamber of utility model proposition.Fig. 2 is the situation that diffusing coal drops into burner hearth.Fig. 3 is the situation that honeycomb briquette drops into burner hearth.

Describe concrete structure of the present utility model and working condition in detail below in conjunction with Fig. 1, Fig. 2, Fig. 3.

This burner hearth is in the burner hearth (7) a straight cage internal furnace (4) of being made up of four flat cast iron pipes to be installed vertically outside, and four iron pipes of internal furnace (4) are distributed on fire door (2) on every side, honeycomb briquette (1) easy on and off motion therein.A port of iron pipe is shut and is fixed on the boiler face (8), and the stove bamboo or wicker fence is freely opened and passed to another port, and four iron pipes have 16 passages that communicate with tube core (5) on 4 faces separately, and its aperture area is preferably less than the tube core sectional area.

When coal or broken honeycomb briquette (6) four iron pipes from internal furnace (4) the burner hearth (7) outside fire door (2) drops into that loose are enclosed in the coal fire as scheming shown in (2), red-hot air in the pipe is transported in the coal seam through passage (5), thereby internal furnace becomes combustion-supporting air duct at this moment.

When honeycomb briquette (1) is put into burner hearth from fire door (2), internal furnace (4) is limited to the central authorities of outer burner hearth (7) with it, formed a big down cavity up and down between outer burner hearth (7) and the honeycomb briquette (1) shown in figure (3), the air in this chamber is heated the back burner hearth has been played combustion-supporting effect.

Outer burner hearth (7), internal furnace (4), passage (5) also can be fired together with seat clay, makes that the stove and accessory repacking is simpler.

Claims (3)

1, can burn various diffusing coals, broken honeycomb briquette, can burn honeycomb briquette again, quantity of heat production is changeable, have unpowered combustion-supporting multifunctional civil Coal stove chamber simultaneously, this burner hearth is in the burner hearth (7) a straight cage internal furnace (4) to be installed vertically outside, it is characterized in that internal furnace (4) is made up of four flat cast iron pipes, article four, the uniform fire door of iron pipe (2) on every side, the upper port of every iron pipe is shut and is fixed on the boiler face (8), and lower port is freely opened, and passes stove bamboo or wicker fence (3).On the tube wall around the iron pipe, have the passage (5) that communicates with tube core.

2, burner hearth according to claim 1 is characterized in that the straight cage internal furnace (4) that four cast iron pipes surround, and its internal diameter is a bit larger tham the external diameter of honeycomb briquette (1), makes honeycomb briquette easy on and off motion therein.

3,1 described burner hearth as requested is characterized in that having 4 pores that communicate with tube core (5) on each face of every iron pipe of internal furnace (4), and 4 faces have 16 passages altogether.