CN201177284Y - Efficient Cooking Stoves - Google Patents

Abstract

The utility model discloses a high-efficiency cooking and heating furnace, the structure of which is that an interlayer water jacket is formed between the furnace shell and the inner liner, the return water pipe port and the water outlet pipe port on the furnace shell communicate with the water jacket, and a The furnace grate and the furnace door are connected with an air inlet pipe at the lower part of the furnace shell, an upper blow pipe and a drip pipe are respectively connected with the air inlet pipe, and an adjustable damper is installed in the air inlet pipe; The ring furnace mouth has a ring cavity inside the ring furnace mouth, and an extension pipe is connected externally. There is a blowing hole on the inner wall of the ring furnace mouth, and the outer port of the extension pipe is connected with the upper port of the upper blowing pipe. The utility model can realize the generation and combustion of water gas while burning coal, so that the combustion calorific value and thermal efficiency are greatly improved, and the combustible volatile matter of coal is fully utilized, thus realizing the effect of high efficiency and saving coal, and can reduce smoke emissions and environmental pollution.

Description

Efficient Cooking Stoves

technical field

The utility model relates to a coal-fired stove, in particular to a high-efficiency cooking and heating stove.

Background technique

Coal-fired boilers and coal-fired stoves are the primary energy consumption equipment of coal. Existing civil cooking and heating furnaces mostly form interlayer water jackets between the furnace shell and the inner liner, the return pipe mouth and the water outlet pipe mouth communicate with the water jacket, and a fire grate and a fire door are provided at the bottom of the furnace shell. The coal seam is burned in the furnace combustion chamber above the grate, and the radiant heat released heats the water jacket. In order to fully burn the coal seam, it is necessary to increase the oxygen supply. The method is generally to use a blower to blow air into the furnace, which causes a large amount of excess air in the furnace to overflow, and its direct damage: First, the heat energy in the furnace cannot be fully absorbed by the water jacket, and a large amount of waste heat is discharged with the flue gas. The waste is serious; the second is to discharge a large amount of flue gas, which has aggravated environmental pollution.

Utility model content

The purpose of the utility model is to provide a high-efficiency cooking and heating stove with low pollution and high thermal efficiency, so as to realize high efficiency, environmental protection and energy saving.

The utility model is achieved as follows: a high-efficiency heating furnace, an interlayer water jacket is formed between the furnace shell and the inner lining, the return pipe port and the water outlet pipe port on the furnace shell communicate with the water jacket, and a furnace is provided at the lower part of the furnace shell. The improvement of the grate and the furnace door is that an air inlet pipe is connected to the lower part of the furnace shell, an upper blowing pipe and a drip pipe are respectively connected to the air inlet pipe, and an adjustable damper is installed in the air inlet pipe; The mouth is provided with a ring furnace mouth, and there is a ring cavity inside the ring furnace mouth, and an extension pipe is connected to the outside. There is a blowing hole on the inner wall of the ring furnace mouth, and the outer port of the extension pipe is connected with the upper port of the upper blowing pipe.

The air inlet pipe in the utility model is externally connected with a blower. After the coal seam in the furnace burns, the air is blown into the air inlet pipe by the blower, and water is continuously dripped into the air inlet pipe through the drip pipe. Under the action of the wind force, the water droplets enter the lower part of the furnace shell through the air inlet pipe and are atomized, then go up with the wind and pass through the burning coal seam. Thus, a large amount of water gas will be produced in the high temperature environment in the furnace. At the same time, the upper blowing pipe connected with the air inlet pipe guides most of the air volume blown by the blower into the annular cavity of the ring furnace mouth on the upper part of the furnace shell, and flows to the furnace through the blowing hole on the inner wall of the ring furnace mouth. The mouth sends a large amount of oxygen-containing air. In this way, the water gas continuously generated in the furnace will be fully burned. Due to the full combustion of water gas, not only the second radiant heat generated is also transmitted to the interlayer water jacket and the cooker above the furnace mouth, so that the combustion calorific value and thermal efficiency of the coal furnace can be greatly improved; moreover, due to the original The combustible volatile matter of the coal in the furnace, which is discharged in large quantities from the chimney, is fully utilized. Therefore, the coal seam in the furnace does not need to be burned excessively, thereby achieving the purpose of saving coal and energy. The trial test shows that the stove can heat 5 kg of cold water in 2 minutes; burn for 10 hours, and use 60 kg of coal, which can meet the daily heating requirements for a building of 2000 square meters.

On the basis of properly adjusting the adjustable damper in the air inlet pipe, the utility model can realize smokeless combustion due to sufficient combustion, thereby greatly reducing smoke emission and environmental pollution, and conforms to the principle of "energy saving and emission reduction". trend.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a sectional view taken along line A-A of Fig. 1 .

Detailed ways

As shown in Fig. 1 and Fig. 2, an interlayer water jacket 4 is formed between the furnace shell 3 and the inner liner 5 of the high-efficiency cooking and heating furnace, and the backside of the furnace shell 3 is provided with a return pipe mouth 18 and a water outlet pipe mouth 20 (Fig. 2), the water return pipe mouth 18 and the water outlet pipe mouth 20 are both communicated with the water jacket 4 . Fire grate 7 is installed in the hearth of furnace shell 3 bottoms, and fire door 17 is contained on the opening (Fig. 2) of furnace shell 3 front lower bottoms. Among Fig. 1, the bottom of furnace shell 3 is connected with air inlet pipe 10, and the air inlet 16 of air inlet pipe and furnace shell junction is opened in the below of fire grate 7 (Fig. 2). On the air inlet pipe 10, be respectively connected with upper blowing pipe 11 and drip pipe 12, can match water pipe and faucet at the nozzle mouth place of drip pipe 12. An adjustable damper 9 is housed in the air inlet pipe 10 to adjust and distribute the air intake. An annular furnace mouth 1 is arranged on the upper mouth of the furnace shell 3, and there is a ring chamber in the annular furnace mouth 1, and a section of extension pipe 1a is connected outside the annular furnace mouth, and on the inner wall of the annular furnace mouth 1, there are A plurality of blowing holes 13, the outer port of the extension pipe 1a communicates with the upper port of the upper blowing pipe 11. Like this, the air volume that enters from air inlet pipe 10 just can be blown in the furnace mouth from the inner wall blowing hole 13 of ring furnace mouth 1 by upper blow pipe 11 and the extension pipe 1a of ring ring furnace mouth, oxygen supply combustion-supporting.

In Fig. 2, on the basis of the above-mentioned structure, the utility model can be provided with a smoke exhaust pipe 19 above the back of the inner lining layer 5, and the upper mouth of the smoke exhaust pipe 19 is connected on the furnace shell 3; The upper mouth of the smoke pipe is provided with a jacking frame 22, a cover plate 23 is housed in the jacking frame, and an external pipe head 21 is connected to the outside of the jacking frame. The external pipe head 21 is used to connect the chimney; the cover plate 23 in the jacking frame can be hooked with a fire hook. When the fire is not in use, it can be hooked out to cover the furnace mouth to seal the fire, and at the same time, the upper mouth of the smoke exhaust pipe can be opened to let the gas flow out; .

The utility model can be provided with a fixed grate, in order to improve efficiency, as shown in Figure 1, the utility model is to connect the grate 7 with the furnace shell 3 through the connecting shaft, and there is a rocking handle 6 and the grate outside the furnace shell The connecting shafts of the fire grate 7 are connected, and some upright driving levers 8 are provided on the top surface of the fire grate 7. In this way, by shaking the handle 6 by hand, the sintered coal seam can be moved through a plurality of driving levers 8 on the top surface of the grate 7, so as to realize smooth ash removal and avoid using a fire pillar to poke coal ash above the furnace mouth. Choke operation.

The utility model can open a coal filling port 15 leading to the hearth at the side wall of the furnace shell 3, and a furnace door 14 is connected outside the coal filling port. In this way, the ring furnace mouth 1 can be made small, so that the urn-shaped structure of the furnace is more conducive to the generation and combustion of water gas.

A fortress seat 2 can be set on the top surface of the stove shell of the present utility model, so that it can be used as a special stove for cooking in restaurants. Certainly like this preferably disposes a turret skeleton and the table top again in furnace shell periphery, both can be used for supporting turret seat 2, can expand operating table top again, is convenient to cooking operation. If the stove is mainly based on heat supply, a movable heat collection box can be set on the frame of the fort and the table top, and the water pipes placed horizontally are densely covered in the heat collection box. The water return pipe mouth 18 and the water outlet pipe mouth 20 are parallel or connected in series, and the bottom of the heating box is open, and the top is sealed, and a small opening is opened in its center. In this way, when the heating box is moved to the upper part of the furnace mouth, it can be used as an additional heating component, thereby effectively improving the overall heating effect of the stove. The stove configured with the heating box is suitable as a heating stove for public bathrooms, greenhouses and the like.

The water gas combustion structure in the utility model is also implemented on a large boiler, so that the original boiler can save more than 60% of coal with only a small amount of investment, and the economic and social benefits are very significant .

Claims (4)

1, a kind of efficient cooking heating stove, form intercalated water sleeve (4) between furnace shell (3) and the inner liner (5), the backwater mouth of pipe (18) on the furnace shell and effluent pipe mouth (20) communicate with water jacket (4), be provided with fire grate (7) and fire door (17) in the furnace shell bottom, it is characterized in that being connected to blast pipe (10) in furnace shell (3) bottom, on blast pipe (10), be connected to up-draught pipe (11) and weep pipe (12) respectively, at blast pipe (10) but in air register (9) is housed; At the ring fire door (1) that is provided with suitable for reading of furnace shell (3), the ring fire door has ring cavity in (1), and external extension tube (1a) has blowhole (13) on the inwall of ring fire door (1), and the external port of extension tube (1a) is connected with the upper port of up-draught pipe (11).

2, efficient cooking heating stove according to claim 1, it is characterized in that being provided with smoke exhaust pipe (19) in inner liner (5) back upper place, smoke exhaust pipe place suitable for reading at furnace shell (3) is provided with apical grafting frame (22), and cover plate (23) is housed in the apical grafting frame, and the outside of apical grafting frame is connected to external tube head (21).

3, efficient cooking heating stove according to claim 1 and 2, it is characterized in that fire grate (7) joins by connecting axle and furnace shell (3), there is the connecting axle of rocking handle (6) and fire grate to join in the furnace shell outside, is provided with some upright driving levers (8) at the end face of fire grate (7).

4, efficient cooking heating stove according to claim 1 and 2 is characterized in that having the coal filling hole (15) that leads to burner hearth at the sidewall of furnace shell (3), and coal filling hole is circumscribed with fire door (14).

Images