CN216591816U

CN216591816U - Chimney-free waste heat recovery firewood stove

Info

Publication number: CN216591816U
Application number: CN202121017164.7U
Authority: CN
Inventors: 侯国山; 王平
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 recovery firewood stove mainly comprises a shell, a bottom, a door frame, heat-insulating refractory materials, an ash bucket, a firepower adjusting plate, an air inlet pipe, an air inlet ring, a smoke pipe, an induced draft fan, an air valve and a hot water bucket. The biomass fuel used in the utility model belongs to renewable energy sources, and is a carbon zero-emission product. The utility model adopts a three-dimensional air supply mode, the fuel can be completely combusted, and the indoor complete smoke-free effect can be realized. The utility model has simple production process and good practical effect. Can be used for large-scale industrial production and has wide market prospect.

Description

Chimney-free waste heat recovery firewood stove

Technical Field

The utility model relates to the field of biomass gasification combustion tools, in particular to a chimney-free waste heat recovery 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, only small household firewood stoves are sold in the market, large commercial firewood stoves are not sold in the market, the heat production quantity of the household firewood stoves is too small, and the processing tasks of hundreds of jin and even more cooked food cannot be completed at one time.

Disclosure of Invention

The utility model aims to provide a chimney-free waste heat recovery firewood stove which has long service life, does not need to build a tall chimney, is smoke-free indoors, can be moved, is convenient to manufacture and can provide a large amount of 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 recovery firewood kitchen, by shell, end, door frame, thermal-insulated refractory material, ash bucket, firepower regulating plate, air-supply line, air inlet circle, tobacco pipe, draught fan, blast gate, hot-water drum, pot are constituteed, characterized by: an ash bucket is fixedly arranged on the bottom, a firepower adjusting plate fixing angle is arranged at the lower end of an ash bucket pipe, and the firepower adjusting plate can slide back and forth on the firepower adjusting plate fixing angle; the shell of the heat-preservation barrel, the barrel fort, the heat-preservation barrel heat-insulation refractory material and the hot water barrel jointly enclose a waste heat recovery chamber; the stove chamber is formed by a stove shell, a stove heat-insulating refractory material, a bottom heat-insulating refractory material, a door heat-insulating refractory material, an ash bucket, a stove grate, a lower air inlet ring, an upper air inlet ring and a pot; 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 gap of a stove grate, an ash bucket and a gap between a firepower adjusting plate and the ash bucket; 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, a lower air inlet ring, a lower air inlet pipe and a lower air valve; the induced draft fan is communicated with the atmosphere through an induced draft pipe, a waste heat recovery chamber, a smoke pipe, a hearth, an upper air inlet hole, an upper air inlet ring, an upper air inlet pipe and an upper air inlet valve.

Go up the inlet ring and have round or many rings of apertures to be last inlet hole, the line at last inlet hole center and last inlet ring center and the contained angle of horizontal plane are between 0 degree and minus 30 degrees, if the line at last inlet hole center and last inlet ring center is a with the contained angle of horizontal plane promptly, then have: -30 ° < a < 0 °.

Two circles of small holes are formed in the lower 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 lower 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 lower 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 b with the contained angle of horizontal plane promptly, then has: b is more than 30 degrees and less than 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 main component for forming a waste heat recovery chamber, is a heat exchanger for recovering waste heat, and is also a cooler for air intake of the induced draft fan, so that the hot water bucket has a simple structure and strong functions, and can generate a large amount of domestic hot water by utilizing the waste heat in the cooking process.

2. The biomass fuel used in the utility model belongs to renewable energy sources, and is a product with zero carbon emission.

3. The utility model adopts a three-dimensional air supply mode, the fuel can be completely combusted, and the indoor complete smoke-free effect can be realized.

4. 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 recovery firewood stove.

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

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

in the drawing, 1, a fire adjusting plate, 2, a fire adjusting plate fixing angle, 3, an ash bucket, 4, a stove grate, 5, a bottom, 6, a bottom heat-insulating refractory material, 7, a first leg, 8, a lower air inlet ring, 9, a lower air inlet hole, 10, an inclined air inlet hole, 11, an upper air inlet ring, 12, an upper air inlet hole, 13, a stove shell, 14, a stove heat-insulating refractory material, 15, a fixing frame, 16, a stove face, 17, a stove turret, 18, a pot, 19, a smoke pipe, 20, a barrel turret, 21, a hot water barrel, 22, a heat-insulating barrel heat-insulating refractory material, 23, a heat-insulating barrel shell, 24, a waste heat recovery chamber, 25, an air guiding pipe, 26, an induced draft fan, 27, a second leg, 28, an upper air inlet valve, 29, an upper air inlet pipe, 30, a lower air inlet valve, 31, a lower air inlet pipe, 32, a fire blocking wall, 33, a fire adjusting rod, 34, a door frame, 35, 36, a fire-insulating material, 37, and a door ring-shaped plate are included.

Detailed Description

Fig. 1 and 2 together describe the structural form of a chimney-free waste heat recovery firewood stove.

A chimney-free waste heat recovery firewood stove comprises a shell, a bottom, a door frame, a heat insulation refractory material, an ash bucket, a firepower adjusting plate, an air inlet pipe, an air inlet ring, a smoke pipe, an induced draft fan, an air valve, a hot water bucket and a pot, wherein a first leg 7 and the bottom 5 are fixedly arranged together, a second leg 27 and a heat preservation bucket shell 23 are fixedly arranged together, a fixing frame 15 and the upper part of a stove shell 13 are fixedly arranged together, the fixing frame 15 and a stove surface 16 are fixedly arranged together, the fixing frame 15 and the heat preservation bucket shell 23 are fixedly arranged together, and the pot 18 is placed in a stove gun platform 17; a heat-insulating refractory material 22 of the heat-insulating barrel is arranged in the barrel-protecting shell 23; a space surrounded by the outer shell 23 of the heat-preservation barrel, the barrel fort 20, the heat-preservation barrel heat-insulation refractory material 22 and the hot water barrel 21 is a waste heat recovery chamber 24; the bottom 5 and the lower end of a stove shell 13 are fixedly arranged together, the upper edge of the bottom 5 is provided with a bottom heat-insulating refractory material 6, one end of a smoke tube 19 is fixedly arranged with a barrel protecting shell 23, the other end of the smoke tube 19 is fixedly arranged with the stove shell 13, the stove shell 13 is internally provided with a stove heat-insulating refractory material 14, and a fire blocking wall 32 is fixed in the stove heat-insulating refractory material 14; the door annular plate 37 is fixedly installed with the door 35, and the door heat-insulating refractory material 36 is arranged on the inner sides of the door 35 and the door annular plate 37; the door frame 34 is fixedly installed with the stove shell 13, and the door 35 is hinged with the door frame 34; a hearth is formed by the stove shell 13, the stove heat-insulating refractory material 14, the bottom 5, the bottom heat-insulating refractory material 6, the door 35, the door heat-insulating refractory material 36, the ash bucket 3, the stove grate 4, the lower air inlet ring 8, the upper air inlet ring 11 and the pot 18; the lower end of the ash bucket 3 is fixedly provided with a firepower adjusting plate fixing angle 2, and a firepower adjusting rod 33 is fixedly arranged with the firepower adjusting plate 1; the firepower adjusting rod 33 is pushed and pulled, the firepower adjusting plate 1 can slide back and forth on the firepower adjusting plate fixing angle 2, and the induced duct 25 and the heat preservation barrel shell 23 are fixedly installed together; the induced draft fan 26 is communicated with the atmosphere through an induced draft pipe 25, a waste heat recovery chamber 24, a smoke pipe 19, a hearth, a gap of a stove grate 4, an ash bucket 3, a gap between a firepower adjusting plate 1 and the ash bucket 3; the induced draft fan 26 is communicated with the atmosphere through an induced draft pipe 25, a waste heat recovery chamber 24, a smoke pipe 19, a hearth, a lower air inlet hole 9, an inclined air inlet hole 10, a lower air inlet ring 8, a lower air inlet pipe 31 and a lower air valve 30; the induced draft fan 26 is communicated with the atmosphere through an induced draft pipe 25, a waste heat recovery chamber 24, a smoke pipe 19, a hearth, an upper air inlet hole 12, an upper air inlet ring 11, an upper air inlet pipe 29 and an upper air valve 28.

Go up air inlet ring 11 and have round or many rings of apertures to be last air inlet hole 12, go up air inlet hole 12 center and the line at last air inlet ring 11 center and horizontal plane contained angle between 0 degree and minus 30 degrees, the line at last air inlet hole center and last air inlet ring center and horizontal plane are to 0 degree to 30 degrees down-slope promptly, if the line at last air inlet hole center and last air inlet ring center is a with the contained angle of horizontal plane, then has: -30 ° < a < 0 °.

Two circles of small holes are formed in the lower air inlet ring 8, one circle of small holes below the lower air inlet ring 8 are lower air inlet holes 9, and a connecting line between the centers of the lower air inlet holes 9 and the centers of the lower air inlet rings 8 is parallel to the horizontal plane; the round of aperture on the lower air ring 8 is oblique inlet opening 10, and the contained angle of the line of oblique inlet opening 10 center and 8 centers of lower air ring and horizontal plane is greater than 30 degrees, is less than 90 degrees, and the line of oblique inlet opening center and lower air ring center and horizontal plane incline 30 degrees to 90 degrees upwards promptly, if the line of oblique inlet opening center and lower air ring center and horizontal plane contained angle be b, then have: b is more than 30 degrees and less than 90 degrees

When the utility model is used, the door 35 is opened to load fuel into the hearth and ignite, the lower air valve 30 is adjusted to a proper position, the upper air valve 28 is adjusted to a proper position, the firepower adjusting plate 1 is adjusted to a proper position, the door 35 is closed, the induced draft fan 26 is opened, the induced draft tube 25, the waste heat recovery chamber 24, the smoke tube 19 and the hearth become negative pressure, air is quickly sprayed to the bottom of the hearth from the lower air valve 30, the lower air inlet tube 31, the lower air inlet ring 8 and the plurality of lower air inlet holes 9 in a circle under the action of pressure difference, and the fuel at the bottom of the hearth is greatly gasified; the lower air inlet ring 8 is provided with a circle of lower air inlet holes 9 in a transverse air inlet mode, so that the air inlet quantity is large and uniform, the fuel gasification quantity is large, and the air inlet holes cannot be blocked at any time; under the action of pressure difference, air is rapidly sprayed to the bottom of the pot 18 from the lower air valve 30, the lower air inlet pipe 31, the lower air inlet ring 8 and the plurality of inclined air inlet holes 10 in a circle, and a circle of air curtain is formed from the inclined air inlet holes 10 to the bottom of the pot 18 by the air sprayed from the plurality of inclined air inlet holes 10 in a circle, so that combustible gas contacting the air curtain can be rapidly combusted, and a large amount of heat is released; under the action of pressure difference, air rapidly enters the hearth from the gap between the firepower adjusting plate 1 and the ash bucket 3 and the gap between the ash bucket 3 and the hearth grate 4 for combustion supporting; the pot 18 is heated, and the combustion waste gas in the hearth is discharged through the smoke pipe 19, the waste heat recovery chamber 24, the induced draft pipe 25 and the induced draft fan 26. When the high-temperature exhaust gas passes through the waste heat recovery chamber 24, the water in the hot water tub 21 is heated; when the high-temperature waste gas passes through the waste heat recovery chamber 24, the heat of the high-temperature waste gas is absorbed by the hot water barrel 21 to be cooled, so that the induced draft fan is prevented from being damaged by the high temperature of the high-temperature waste gas; the lower air valve 30 is adjusted to adjust the air intake at the bottom 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 firepower adjusting rod 33 is pushed and pulled, so that the relative position of the firepower adjusting plate 1 and the ash bucket 3 can be adjusted, the air is adjusted to enter the hearth from the gap of the stove grate 4, the firepower of the hearth can be adjusted, the upper air valve 28 is adjusted, the complete combustion degree of combustible gas in the hearth can be adjusted, and the upper air valve 28 needs to be opened greatly when the smoke outlet of the induced draft fan 26 emits thick smoke.

Claims

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

2. The chimney-free waste heat recovery firewood stove according to claim 1, characterized in that: go up the inlet ring and have round or many rings of apertures to be last inlet hole, the line at last inlet hole center and last inlet ring center and the contained angle of horizontal plane are between 0 degree and minus 30 degrees, if the line at last inlet hole center and last inlet ring center is a with the contained angle of horizontal plane promptly, then have: -30 ° < a < 0 °.

3. The chimney-free waste heat recovery firewood stove according to claim 1, characterized in that: two circles of small holes are formed in the lower 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 lower 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 lower 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 b with the contained angle of horizontal plane promptly, then has: b is more than 30 degrees and less than 90 degrees.