CN216591817U - Commercial firewood stove of induced air formula waste heat recovery - Google Patents
Commercial firewood stove of induced air formula waste heat recovery Download PDFInfo
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- CN216591817U CN216591817U CN202121017991.6U CN202121017991U CN216591817U CN 216591817 U CN216591817 U CN 216591817U CN 202121017991 U CN202121017991 U CN 202121017991U CN 216591817 U CN216591817 U CN 216591817U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
- Y02A40/924—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation using renewable energies
- Y02A40/928—Cooking stoves using biomass
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Abstract
The utility model relates to an induced air type waste heat recovery commercial firewood stove, which consists of a jacket water tank, a bottom, a door, refractory materials, an air inlet ring, an induced draft fan, an air pipe, an air valve, a heat exchanger and a pot. The combustion chamber of the utility model adopts negative pressure induced air, has quick fire, strong firepower and quick heating, and is completely smokeless indoors. The utility model can utilize the waste heat to generate a large amount of hot water. The utility model can use wood blocks, wood segments, branches, straws, sawdust, leaves, biomass molding particles and the like as fuels, and the fuel cost for processing cooked food is low. The utility model has the advantages of high reliability, low price, energy saving, no pollution, long service life, safety, simple production process, large-scale industrial production and wide market prospect.
Description
Technical Field
The utility model relates to the technical field of biomass gasification combustion stoves, in particular to an induced air type waste heat recovery commercial firewood stove.
Background
The firewood stove is also named as 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 household firewood furnaces are sold in the market, and the commercial firewood furnaces with induced air type waste heat recovery are not seen to be sold in the market, so that the heat production quantity of the household firewood furnaces is too small, and the processing task of cooked food of hundreds of jin and even more can not be completed at one time.
Disclosure of Invention
In view of the above situation, the present invention aims to provide an induced air type waste heat recovery commercial firewood stove capable of rapidly completing several hundred jin and even a very heavy cooked food processing task at one time.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides an induced air formula waste heat recovery commercial firewood stove comprises pressing from both sides cover water tank, end, door, refractory material, air inlet ring, draught fan, tuber pipe, blast gate, heat exchanger, pot, characterized by: the jacketed water tank is composed of a jacketed water tank inner ring, a jacketed water tank outer ring, a partial bottom, an upper bottom and a door frame annular plate; the bottom, the bottom refractory material, the lower air inlet ring, the lower part of the inner ring of the jacket water tank, the door annular plate, the door refractory material, the door frame annular plate, the top plate of the first combustion chamber, the upper air inlet ring and the refractory material at the periphery of the upper air inlet ring enclose a non-closed space which is the first combustion chamber; the upper part of the inner ring of the jacket water tank, the upper air inlet ring, the refractory material at the periphery of the upper air inlet ring and the pot together enclose a non-closed space which is a second combustion chamber; the induced draft fan is communicated with the atmosphere through an induced draft pipe, a heat exchanger, a second combustion chamber, a first combustion chamber, an upper air inlet hole, an upper air inlet ring, an upper air pipe and an upper air valve; the induced draft fan is communicated with the atmosphere through an induced draft pipe, a heat exchanger, a second combustion chamber, a first combustion chamber, a lower air inlet hole, an inclined air inlet hole, a lower air inlet ring, a lower air pipe and a lower air valve.
The firewood inlet on the jacket water tank is closed by the door frame annular plate.
One or more circles of small holes are arranged on the upper air inlet ring and are upper air inlet holes.
The lower air inlet ring is provided with two circles of small holes, 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 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 circle of lower air inlet holes and the circle of inclined air inlet holes on the lower air inlet ring at the lower part of the first combustion chamber can ensure that the air inlet amount is large and uniform, the fuel combustion gasification amount is large, and the air inlet holes can not be blocked at any time.
2. The combustion chamber of the utility model adopts negative pressure induced air, has quick fire, strong firepower and quick heating, and is completely smokeless indoors.
3. The utility model can utilize waste heat to generate a large amount of hot water.
4. The operation is simple. Experiments prove that only one time of fuel is needed to be added when the waste wood blocks are used for cooking one pot of raw meat.
5. The fuel adaptability is strong. The utility model can use wood blocks, wood segments, branches, straws, sawdust, leaves, biomass molding particles and the like as fuels, and the fuel cost for processing cooked food is low.
6. The utility model has the advantages of high reliability, low price, energy saving, no pollution, long service life, safety, simple production process, large-scale industrial production and wide market prospect.
Drawings
Fig. 1 is a schematic sectional view of an induced draft type waste heat recovery commercial firewood stove.
The utility model is further illustrated below with reference to fig. 1 and the examples:
in the figure 1, legs, 2, a lower air inlet ring, 3, lower air inlet holes, 4, oblique air inlet holes, 5, a door frame annular plate, 6, a door, 7, door refractory materials, 8, a door annular plate, 9, a first combustion chamber top plate, 10, an upper air inlet ring, 11, an upper air inlet hole, 12, upper air inlet ring periphery refractory materials, 13, a jacket water tank outer ring, 14, a jacket water tank inner ring, 15, a pot, 16, a heat exchanger upper opening, 17, an upper bottom, 18, a hot water outlet pipe, 19, a heat exchanger, 20, an upper air pipe, 21, an upper air valve, 22, a tap water pipe, 23, an air guiding pipe, 24, an induced draft fan, 25, a lower air pipe, 26, a lower air inlet valve, 27, a bottom and 28, bottom refractory materials.
Detailed Description
Fig. 1 illustrates a structure of an induced draft type waste heat recovery commercial firewood stove.
An induced air type waste heat recovery commercial firewood stove comprises a jacket water tank, a bottom, a door, a refractory material, an air inlet ring, an induced draft fan, an air pipe, an air valve, a heat exchanger and a pot, wherein legs 1 and the bottom 27 are fixedly installed together, the lower end of an inner ring 14 of the jacket water tank is fixedly installed with the bottom 27, the lower end of an outer ring 13 of the jacket water tank is fixedly installed with the bottom 27, the upper ends of the inner ring and the outer ring of the jacket water tank are fixedly installed with an upper bottom 17, and the jacket water tank inner ring 14, the jacket water tank outer ring 13, a part of the bottom 27, the upper bottom 17 and a door frame annular plate 5 jointly form a jacketed water tank; the upper edge of the bottom 27 is provided with a bottom refractory material 28, a door annular plate 8 and a door 6 are fixedly installed together, the door annular plate 8 and the inner side of the door 6 are provided with a door refractory material 7, the door 6 and a door frame annular plate 5 are hinged together, a first combustion chamber top plate 9 and a jacket water tank inner ring 14 are fixedly installed together, an upper air inlet ring peripheral refractory material 12 is fixedly installed on the first combustion chamber top plate 9, an upper air inlet ring 10 is fixedly installed in the upper air inlet ring peripheral refractory material 12, a pot 15 is fixedly installed at the upper end of the induced draft type waste heat recovery commercial firewood stove, and a lower air inlet ring 2 is fixedly installed in the bottom refractory material 28; a non-closed space which is a first combustion chamber is enclosed by the bottom 27, the bottom refractory material 28, the lower air inlet ring 2, the lower part of the jacket water tank inner ring 14, the door 6, the door annular plate 8, the door refractory material 7, the door frame annular plate 5, the first combustion chamber top plate 9 and the upper air inlet ring peripheral refractory material 12; a non-closed space which is a second combustion chamber is enclosed by the upper part of the jacket water tank inner ring 14, the upper air inlet ring 10, the refractory material 12 at the periphery of the upper air inlet ring and the pot 15; the cross sections of the upper air inlet ring 10 and the lower air inlet ring 2 are polygonal; the heat exchanger 19 is fixedly arranged in the jacket water tank, and the upper opening 16 of the heat exchanger is welded with the upper part of the inner ring 14 of the jacket water tank; an upper opening 16 of the heat exchanger is opened in the No. 2 combustion chamber through the upper part of an inner ring 14 of the jacket water tank, and a lower opening of the heat exchanger 19 is welded with the lower part of an outer ring 13 of the jacket water tank; the lower port of the heat exchanger 19 is communicated with an induced draft pipe 23, the hot water outlet pipe 18 is communicated with the upper part of the jacket water tank, the tap water pipe 22 is communicated with the lower part of the jacket water tank, and the induced draft fan 24 is communicated with the atmosphere through the induced draft pipe 23, the heat exchanger 19, the second combustion chamber, the upper air inlet hole 11, the upper air inlet ring 10, the upper air inlet pipe 20 and the upper air valve 21; the induced draft fan 24 is communicated with the atmosphere through an induced draft pipe 23, a heat exchanger 19, a second combustion chamber, a first combustion chamber, a lower air inlet hole 3, an inclined air inlet hole 4, a lower air inlet ring 2, a lower air pipe 25 and a lower air valve 26.
The firewood inlet on the jacket water tank is closed by a door frame annular plate 5.
The upper air inlet ring 10 is provided with one or more circles of small holes which are upper air inlet holes 11.
The lower air inlet ring 2 is provided with two circles of small holes, one circle of small holes below the lower air inlet ring 2 are lower air inlet holes 3, the connecting line of the centers of the lower air inlet holes 3 and the centers of the lower air inlet ring 2 is parallel to the horizontal plane, and the air supply direction of the lower air inlet holes 3 is on the extension line of the connecting line of the centers of the lower air inlet holes 3 and the centers of the lower air inlet ring 2, namely the horizontal direction; the round of aperture on lower air inlet circle 2 is oblique fresh air inlet 4, and the line in 4 centers of oblique fresh air inlet and 2 centers of lower air inlet circle and the contained angle of horizontal plane are greater than 30 degrees, are less than 90 degrees, if the line in 4 centers of oblique fresh air inlet and 2 centers of lower air inlet circle and the contained angle of horizontal plane are a, then have: 30 degrees < a < 90 degrees. The air supply direction of the oblique air inlet holes 4 is on the extension line of the connecting line of the centers of the oblique air inlet holes 4 and the center of the lower air inlet ring 2, namely from the oblique air inlet holes 4 to the outer edge of the lower opening of the second combustion chamber.
When the negative pressure type fuel injection valve is used, the door 6 is opened, fuel is filled into the first combustion chamber and ignited, the upper air valve 21 and the lower air valve 26 are adjusted to proper positions, the door 6 is closed, the induced draft fan 24 is opened, and the second combustion chamber and the first combustion chamber are changed into negative pressure. Under the action of pressure difference, air is rapidly sprayed to the lower part of the first combustion chamber from the downdraft valve 26, the downdraft pipe 25, the lower air inlet ring 2 and the plurality of lower air inlet holes 3, and fuel at the bottom of the first combustion chamber is greatly gasified; the ring of lower air inlet holes 3 on the lower air inlet ring 2 of the utility model adopts a transverse air inlet mode, which can ensure 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 outer edge of the lower opening of the second combustion chamber from the lower air valve 26, the lower air pipe 25, the lower air inlet ring 2 and the plurality of inclined air inlet holes 4, a circle of air curtain is formed from the inclined air inlet holes 4 to the outer edge of the lower opening of the second combustion chamber by the air sprayed from the plurality of inclined air inlet holes 4, and all combustible gas contacting the air curtain can be rapidly combusted and emit a large amount of heat. Under the action of pressure difference, air is rapidly sprayed to the lower port of the second combustion chamber from the upper air valve 21, the upper air pipe 20, the upper air inlet ring 10 and the upper air inlet hole 11, high-temperature combustible gas which rises to the lower part of the second combustion chamber is mixed with air coming out of the upper air inlet hole 11 for combustion, the pot 15 is heated, and high-temperature waste gas is discharged out of the combustion chamber through the heat exchanger 19, the induced draft pipe 23 and the induced draft fan 24; when the high temperature exhaust gas passes through the heat exchanger 19, the water in the jacket water tank is heated; the air intake of the first combustion chamber can be adjusted by adjusting the closing degree of the lower air valve 26, so that the gasification amount of the fuel in the first combustion chamber can be controlled, and the firepower of the second combustion chamber can be further controlled. The closing degree of the upper air valve 21 is adjusted, the air intake of the lower part of the second combustion chamber can be adjusted, so that the combustible gas can be completely combusted, the complete combustion degree can be judged according to the blackness of the smoke discharged from the smoke pipe, and the discharged smoke is colorless when the combustion is complete. And closing the lower air valve 26, the upper air valve 21 and the induced draft fan 24, completely isolating the fuel in the first combustion chamber from air, and completely stopping the combustion in the first combustion chamber and the second combustion chamber. The utility model can be continuously used for a plurality of times and then deashing once through the door.
Claims (4)
1. The utility model provides an induced air formula waste heat recovery commercial firewood stove comprises pressing from both sides cover water tank, end, door, refractory material, air inlet ring, draught fan, tuber pipe, blast gate, heat exchanger, pot, characterized by: the jacketed water tank is composed of a jacketed water tank inner ring, a jacketed water tank outer ring, a partial bottom, an upper bottom and a door frame annular plate; the bottom, the bottom refractory material, the lower air inlet ring, the lower part of the inner ring of the jacket water tank, the door annular plate, the door refractory material, the door frame annular plate, the top plate of the first combustion chamber, the upper air inlet ring and the refractory material at the periphery of the upper air inlet ring enclose a non-closed space which is the first combustion chamber; the upper part of the inner ring of the jacket water tank, the upper air inlet ring, the refractory material at the periphery of the upper air inlet ring and the pot together enclose a non-closed space which is a second combustion chamber; the induced draft fan is communicated with the atmosphere through an induced draft pipe, a heat exchanger, a second combustion chamber, a first combustion chamber, an upper air inlet hole, an upper air inlet ring, an upper air pipe and an upper air valve; the induced draft fan is communicated with the atmosphere through an induced draft pipe, a heat exchanger, a second combustion chamber, a first combustion chamber, a lower air inlet hole, an inclined air inlet hole, a lower air inlet ring, a lower air pipe and a lower air valve.
2. The induced draft type waste heat recovery commercial firewood stove of claim 1, characterized in that: the firewood inlet on the jacket water tank is closed by the door frame annular plate.
3. The induced draft type waste heat recovery commercial firewood stove of claim 1, characterized in that: one or more circles of small holes are arranged on the upper air inlet ring and are upper air inlet holes.
4. The induced draft type waste heat recovery commercial firewood stove of 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 a with the contained angle of horizontal plane, then has: 30 degrees < a < 90 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121017991.6U CN216591817U (en) | 2021-05-08 | 2021-05-08 | Commercial firewood stove of induced air formula waste heat recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121017991.6U CN216591817U (en) | 2021-05-08 | 2021-05-08 | Commercial firewood stove of induced air formula waste heat recovery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216591817U true CN216591817U (en) | 2022-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121017991.6U Active CN216591817U (en) | 2021-05-08 | 2021-05-08 | Commercial firewood stove of induced air formula waste heat recovery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216591817U (en) |
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2021
- 2021-05-08 CN CN202121017991.6U patent/CN216591817U/en active Active
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