CN216591818U

CN216591818U - Chimney-free waste heat utilization firewood stove

Info

Publication number: CN216591818U
Application number: CN202121017992.0U
Authority: CN
Inventors: 侯国山
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2022-05-24
Anticipated expiration: 2031-05-08

Abstract

A chimney-free waste heat utilization firewood stove comprises a draught fan, an induced draft pipe, an air inlet ring, an air inlet pipe, an air valve, a shell, a bottom, a door frame, heat-insulating refractory materials, a smoke pipe, an ash discharge pipe, a firepower adjusting plate, an ash bucket and a hot water bucket, wherein the ash discharge pipe is fixedly arranged on the bottom of the stove, and the firepower adjusting plate is arranged at the lower end of the ash discharge pipe; the shell of the heat-preservation barrel, the heat-insulation fireproof material of the barrel and the hot water barrel jointly enclose a waste heat recovery chamber; the utility model utilizes the waste heat recovery mode of high-temperature waste gas to generate a large amount of boiled water. The utility model can be used for processing various cooked foods by steaming, frying, boiling and other processing modes. The utility model has simple operation, strong fuel adaptability, low fuel cost of cooked food processing and wide market prospect.

Description

Chimney-free waste heat utilization firewood stove

Technical Field

The utility model relates to the technical field of biomass gasification stove combustion, in particular to a chimney-free waste heat utilization firewood stove.

Background

The firewood stove is also called a biomass cooking stove, a plant cooking stove and an energy-saving firewood stove. The firewood stove uses wood blocks, wood sections, branches, straws, sawdust, leaves and biomass molding particles as fuel, and uses a corresponding stove structure to enable the fuel to be polymerized at a stove mouth by the heat energy of wood direct combustion and wood gasification combustion so as to carry out cooking work. At present, the common household firewood stove is a return air stove with a brick concrete structure, and the return air stove with the brick concrete structure has the advantages of simple structure, long service life and no smoke indoors. The air return stove with the brick concrete structure has the following defects: the building is labor-consuming and time-consuming, a tall chimney is required to be arranged, the building cannot be moved, a firepower adjusting device is lacked, and a waste heat recovery device is lacked.

Disclosure of Invention

The utility model aims to provide a chimney-free waste heat utilization firewood stove which has long service life, does not need to build a tall chimney, is indoor smokeless, can move and can provide a large amount of domestic hot water by using waste heat.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a chimney waste heat utilization firewood kitchen, by draught fan, induced duct, air inlet ring, air-supply line, blast gate, shell, end, door frame, thermal-insulated refractory material, tobacco pipe, ash pipe, firepower regulating plate, ash bucket, hot-water drum constitute, characterized by: an ash discharging pipe is fixedly arranged on the bottom, and a firepower adjusting plate is arranged at the lower end of the ash discharging pipe; the shell of the heat-preservation barrel, the barrel fort, the barrel heat-insulation refractory material and the hot water barrel jointly form a waste heat recovery chamber; a stove hearth is enclosed by the stove shell, the stove heat-insulating refractory material, the bottom heat-insulating refractory material, the air inlet ring, the stove grate, the door and the pot; the draught fan is communicated with the atmosphere through gaps among the induced draft tube, the waste heat recovery chamber, the smoke tube, the hearth, the stove grate, the ash discharge tube, the firepower adjusting plate and the ash discharge tube; the induced draft fan is communicated with the atmosphere through an induced draft pipe, a waste heat recovery chamber, a smoke pipe, a hearth, a lower air inlet hole, an inclined air inlet hole, an air inlet ring, an air inlet pipe and an air valve; the hearth is communicated with the atmosphere through a gap between the stove grate, the ash discharge pipe and the fire adjusting plate.

Two circles of small holes are arranged on the air inlet ring, the lower circle of small holes are lower air inlet holes, and the connecting line of the center of the lower air inlet holes and the center of the air inlet ring is parallel to the horizontal plane; above-mentioned round aperture is oblique fresh air inlet, and the line at oblique fresh air inlet center and air inlet circle center is greater than 30 degrees with the contained angle of horizontal plane, is less than 90 degrees, if the line at oblique fresh air inlet center and lower air inlet circle center is a with the contained angle of horizontal plane, then has: 30 degrees < a < 90 degrees.

Compared with the prior art, the utility model has the following advantages:

1. the hot water bucket is a container for containing hot water, is a key element for forming a waste heat recovery chamber, is a heat exchanger for recovering waste heat, and is a cooler for air inlet of the induced draft fan, so that the hot water bucket is simple in structure and strong in function.

2. The utility model has the advantages of long service life, no smoke in the room, mobility and adjustable firepower, and can generate a large amount of domestic hot water by using waste heat in the cooking process.

3. The utility model has simple production process and good practical effect. Can be used for large-scale industrial production and has wide market prospect.

Drawings

FIG. 1 is a cross-sectional view of a chimney-free waste heat utilization firewood stove.

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1.

FIG. 3 is a schematic cross-sectional view taken along line B-B of FIG. 1.

The utility model is further illustrated with reference to the following figures and examples:

in the drawing, 1, an ash bucket, 2, an ash bucket fixing angle, 3, a connecting rod, 4, a bottom, 5, a first leg, 6, a bottom heat insulation refractory material, 7, an air inlet ring, 8, a lower air inlet hole, 9, an inclined air inlet hole, 10, a stove shell, 11, a shell heat insulation refractory material, 12, a fixing frame, 13, a stove surface, 14, a stove gun platform, 15, a pot, 16, a smoke pipe, 17, a barrel gun platform, 18, a hot water barrel, 19, a barrel heat insulation refractory material, 20, a barrel shell, 21, a waste heat recovery chamber, 22, a second leg, 23, an air valve, 24, an air inlet pipe, 25, a stove grate, 26, an ash outlet pipe, 27, a fixing plate, 28, a fire adjusting plate, 29, a fire adjusting rod, 30, a door, 32, an air guiding pipe and 33, an induced draft fan are arranged.

Detailed Description

Fig. 1, fig. 2 and fig. 3 together describe a structural form of a chimney-free waste heat utilization firewood stove.

A chimney-free waste heat utilization firewood stove comprises a shell, a bottom, a door frame, a heat insulation fireproof material, a smoke pipe, an induced draft fan, an air valve and a heat preservation water bucket, wherein a first leg 5 and the bottom 4 are fixedly installed together, a second leg 22 and a bucket shell 20 are fixedly installed together, a fixing frame 12 and the upper part of a stove shell 10 are fixedly installed together, the fixing frame 12 and a stove surface 13 are fixedly installed together, the fixing frame 12 and the bucket shell 20 are fixedly installed together, and a pot 15 is placed in a stove gun platform 14; a barrel heat insulation refractory material 19 is arranged in the barrel shell 20; a space enclosed by the barrel shell 20, the barrel heat-insulating refractory material 19, the barrel fort 17 and the hot water barrel 18 is a waste heat recovery chamber 21; the bottom 4 is fixedly installed with the lower end of a stove shell 10, the upper edge of the bottom 4 is provided with a bottom heat-insulating refractory material 6, one end of a smoke tube 16 is fixedly installed with a barrel shell 20, the other end of the smoke tube 16 is fixedly installed with the stove shell 10, the stove shell 10 is internally provided with the stove heat-insulating refractory material 11, a door frame 30 is fixedly installed with the stove shell 10, and a door 31 is hinged with the door frame 30; a stove chamber is defined by the stove shell 10, the stove heat-insulating refractory material 11, the bottom 4, the bottom heat-insulating refractory material 6, the air inlet ring 7, the stove grate 25, the door 31, the door frame 30 and the pot 15; the ash bucket 1 is placed on an ash bucket fixing angle 2, the ash bucket 1 can move back and forth on the ash bucket fixing angle 2, and the ash bucket fixing angle 2 is fixedly installed with the bottom 4 through a plurality of connecting rods 3; the ash discharging pipe 26 and the bottom 4 are fixedly arranged together, the firepower adjusting rod 29 and the firepower adjusting plate 28 are fixedly arranged together, the fixing plate 27 is fixedly arranged at the lower end of the ash discharging pipe 26, the firepower adjusting rod 29 is pushed and pulled, and the firepower adjusting plate 28 can slide on the fixing plate 27 front and back; the hearth is communicated with the atmosphere through gaps among the stove grate 25, the ash discharge pipe 26, the fire adjusting plate 28 and the ash discharge pipe 26; the induced draft fan 33 is communicated with the atmosphere through an induced draft pipe 32, a waste heat recovery chamber 21, a smoke pipe 16, a hearth, an inclined air inlet hole 9, an air inlet ring 7, an air inlet pipe 24 and an air valve 23; the induced draft fan 33 is communicated with the atmosphere through an induced draft pipe 32, the waste heat recovery chamber 21, the smoke pipe 16, the hearth, the lower air inlet hole 8, the air inlet ring 7, the air inlet pipe 24 and the air valve 23.

Two circles of small holes are arranged on the air inlet ring 7, the lower circle of small holes is a lower air inlet hole 8, and the connecting line of the center of the lower air inlet hole 8 and the center of the air inlet ring 7 is parallel to the horizontal plane; the round aperture of the upper side is an oblique air inlet 9, the included angle between the line of the center of the oblique air inlet 9 and the center of the air inlet ring 7 and the horizontal plane is more than 30 degrees and less than 90 degrees, if the included angle between the line of the center of the oblique air inlet and the center of the lower air inlet ring and the horizontal plane is a, the angle is as follows: 30 degrees < a < 90 degrees.

When the utility model is used, the door 31 is opened to load fuel into the hearth and ignite, the air valve 23 is adjusted to a proper position, the firepower adjusting plate 28 is adjusted to a proper position, the door 8 is closed, the induced draft fan 33 is opened, the induced draft tube 32, the waste heat recovery chamber 21, the smoke tube 16 and the hearth become negative pressure, air is rapidly sprayed to the lower part of the hearth from the air valve 23, the air inlet pipe 24, the air inlet ring 7 and the lower air inlet holes 8 in a circle under the action of pressure difference, and the fuel at the bottom of the hearth is greatly gasified; the utility model adopts the transverse air inlet mode of the lower air inlet ring 8 on the lower air inlet ring 7 of the hearth, so that the air inlet quantity is large and uniform, the fuel gasification quantity is large, and the air inlet holes can not be blocked at any time. Under the action of pressure difference, air is rapidly sprayed to the bottom of the pot 15 from the air valve 23, the air inlet pipe 24, the air inlet ring 7 and the plurality of inclined air inlet holes 9 in a circle, and a circle of air curtain is formed from the inclined air inlet holes 9 to the bottom of the pot 15 by the air sprayed from the plurality of inclined air inlet holes 9 in a circle, so that all combustible gas contacting the air curtain can be rapidly combusted, and a large amount of heat is emitted; under the action of pressure difference, air rapidly enters the hearth from a gap between the firepower adjusting plate 28 and the ash bucket 1, the ash bucket 1 and the stove grate 25 to participate in combustion; the boiler 17 is heated, and the high-temperature waste gas in the hearth is discharged out of the combustion chamber through the smoke pipe 16, the waste heat recovery chamber 21, the induced draft pipe 32 and the induced draft fan 33. When the high-temperature exhaust gas passes through the waste heat recovery chamber 21, water in the hot water tub 18 is heated. When the high-temperature waste gas passes through the waste heat recovery chamber 21, the heat of the high-temperature waste gas is absorbed by the hot water barrel 18 to be cooled, so that the induced draft fan is prevented from being influenced by the high temperature of the high-temperature waste gas; the air valve 23 is adjusted to adjust the air intake of the hearth, so that the gasification amount of the fuel of the hearth is controlled, and the firepower of the hearth is controlled; the relative position of the fire adjusting plate 28 and the ash bucket 1 can be adjusted by pushing and pulling the fire adjusting rod 29, so that the amount of air entering the hearth from the stove grate 25 can be adjusted, and the fire of the hearth can also be adjusted.

Claims

1. The utility model provides a chimney waste heat utilization firewood kitchen, by draught fan, induced duct, air inlet ring, air-supply line, blast gate, shell, end, door frame, thermal-insulated refractory material, tobacco pipe, ash pipe, firepower regulating plate, ash bucket, hot-water drum constitute, characterized by: an ash discharge pipe is fixedly arranged on the bottom, and a firepower adjusting plate is arranged at the lower end of the ash discharge pipe; the shell of the heat-preservation barrel, the barrel fort, the barrel heat-insulation refractory material and the hot water barrel jointly form a waste heat recovery chamber; a stove hearth is enclosed by the stove shell, the stove heat-insulating refractory material, the bottom heat-insulating refractory material, the air inlet ring, the stove grate, the door and the pot; the draught fan is communicated with the atmosphere through gaps among the induced draft tube, the waste heat recovery chamber, the smoke tube, the hearth, the stove grate, the ash discharge tube, the firepower adjusting plate and the ash discharge tube; the induced draft fan is communicated with the atmosphere through an induced draft pipe, a waste heat recovery chamber, a smoke pipe, a hearth, a lower air inlet hole, an inclined air inlet hole, an air inlet ring, an air inlet pipe and an air valve; the hearth is communicated with the atmosphere through a gap between the stove grate, the ash discharge pipe and the fire adjusting plate.

2. The chimney-free waste heat utilization firewood stove according to claim 1, characterized in that: two circles of small holes are arranged on the air inlet ring, the lower circle of small holes are lower air inlet holes, and the connecting line of the center of the lower air inlet holes and the center of the air inlet ring is parallel to the horizontal plane; above-mentioned round aperture is oblique fresh air inlet, and the line at oblique fresh air inlet center and air inlet circle center is greater than 30 degrees with the contained angle of horizontal plane, is less than 90 degrees, if the line at oblique fresh air inlet center and lower air inlet circle center is a with the contained angle of horizontal plane, then has: a is more than 30 degrees and less than 90 degrees.