CN216591811U

CN216591811U - Energy-saving firewood-burning steaming stove

Info

Publication number: CN216591811U
Application number: CN202121003980.2U
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

The energy-saving firewood-burning steaming stove is mainly formed from external shell, internal shell, bottom, door frame, refractory material, air-intake ring, draught fan, air-inducing pipe, air valve, heat-exchange coil and pot. The biomass fuel used in the utility model belongs to renewable energy sources, and is a product with zero carbon emission. The waste heat of the hearth and the waste heat of the high-temperature waste smoke are effectively utilized, and the energy-saving effect is obvious. The utility model can use wood blocks, wood segments, branches, straws, sawdust, leaves, biomass molding particles and the like as fuels, and has low fuel cost. The utility model adopts a three-dimensional air supply mode, the fuel is completely combusted, and no smoke exists indoors. 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

Energy-saving firewood-burning steaming stove

Technical Field

The utility model relates to the technical field of cooked food processing stoves, in particular to an energy-saving firewood-burning steaming 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 takes 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 stoves are sold in the market, large firewood stoves are not seen to be sold in the market, and the household firewood stoves are too small in heat production amount to be used commercially.

Disclosure of Invention

Aiming at the situation, the utility model aims to provide an energy-saving firewood-burning cooking stove which has large heat production and can be used commercially.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides an energy-conserving firewood cooking stove, by shell, inner shell, end, door frame, refractory material, air inlet ring, draught fan, induced duct, blast gate, heat transfer coil pipe, pot are constituteed, characterized by: the bottom, the outer shell, the inner shell and the door frame annular plate together enclose a non-closed space as a jacket furnace wall; the bottom, the bottom refractory material, the inner shell, the lower air inlet ring, the upper air inlet ring, the refractory material fixing plate, the upper air inlet ring refractory material, the door annular plate, the door refractory material, the door frame annular plate and the pot together enclose a non-closed space which is a combustion chamber; the induced draft fan is communicated with the combustion chamber through an induced draft pipe, a heat exchange coil and a smoke pipe; the upper air valve is communicated with the combustion chamber through an upper air pipe, an upper air inlet ring and a plurality of upper air inlet holes; the lower air valve is communicated with the combustion chamber through a lower air pipe, a lower air inlet ring and a plurality of inclined air inlet holes; the lower air valve is communicated with the combustion chamber through a lower air pipe, a lower air inlet ring and a plurality of lower air inlet holes.

The shape of the pan is circular or polygonal.

A food steamer is arranged on the food steamer fixing plate, and a food steamer cabinet is arranged on the food steamer fixing plate or the food steamer cabinet.

One or more circles of small holes are arranged on the upper air inlet ring and are upper air inlet holes.

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 < a < 90.

And removing the induced draft fan, and connecting the free ends of the upper and lower air valves with the air outlet of the air blower to form the blast type energy-saving firewood burning cooking stove.

Book (I)Compared with the prior art, the utility model has the following advantages:

1. the lower circle of air inlet holes at the lower part of the 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 biomass fuel used in the utility model belongs to renewable energy sources, and is a product with zero carbon emission.

3. The waste heat of the hearth and the waste heat of the high-temperature waste smoke are effectively utilized, and the energy-saving effect is obvious.

4. 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 has low fuel cost.

5. The utility model adopts a three-dimensional air supply mode, the fuel is completely combusted, and no smoke exists indoors.

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 energy-saving firewood cooking stove.

The utility model is further illustrated below with reference to fig. 1 and the examples:

in the figure, 1, a leg, 2, a lower air inlet ring, 3, a lower air inlet hole, 4, an inclined air inlet hole, 5, a door frame annular plate, 6, a door, 7, door refractory material, 8, a door annular plate, 9, a refractory material fixing plate, 10, an upper air inlet ring, 11, an upper air inlet hole, 12, an upper air inlet ring refractory material, 13, an outer shell, 14, a jacket furnace wall inner cavity, 15, a steaming tool fixing plate, 16, a pot, 17, a smoke pipe, 18, a smoke inlet flange, 19, a water level line, 20, a heat exchange coil, 21, a smoke outlet flange, 22, an air induction pipe, 23, an induced draft fan, 24, an upper air valve, 25, an upper air pipe, 26, an inner shell, 27, a lower air pipe, 28, a lower air valve, 29, a bottom and 30 are made of bottom refractory material.

Detailed Description

Fig. 1 depicts a structural form of an energy-saving firewood-burning cooking stove.

An energy-saving firewood-burning steaming stove comprises an outer shell, an inner shell, a bottom, a door frame, refractory materials, an air inlet ring, an induced draft fan, an induced draft pipe, an air valve, a heat exchange coil and a pot, wherein legs 1 and the bottom 29 are fixedly installed together, the bottom 29 is welded with the lower end of an outer shell 13, the bottom 29 is welded with the lower end of an inner shell 26, the upper side of the bottom 29 is provided with the refractory materials 30, one end of a smoke tube 17 is welded with the pot 16, and the other end of the smoke tube 17 is fixedly installed with the heat exchange coil 20 through a smoke inlet flange 18; the heat exchange coil 20 is fixedly installed with an induced draft pipe 22 through a smoke outlet flange 21; the induced draft tube 22 is welded with the outer shell 13, the induced draft tube 22 is welded with the inner shell 26, the door frame annular plate 5 is welded with the outer shell 13, the door frame annular plate 5 is welded with the inner shell 26, the door annular plate 8 is fixedly installed with the door 6, the door annular plate 8 is provided with the door refractory material 7 at the inner side of the door 6, the door 6 is hinged with the door frame annular plate 5, the pot 16 is welded with the upper end of the inner shell 26, the pot 16 is circular or polygonal, the steamer fixing plate 15 is welded with the upper end of the outer shell 13, and a steamer or a fixed steam cabinet is placed on the steamer fixing plate 15; the lower air inlet ring 2 is fixedly arranged on the bottom refractory material 30; the bottom 29, the outer shell 13, the inner shell 26 and the door frame annular plate 5 together enclose a non-closed space as a jacket furnace wall; a non-closed space which is a combustion chamber is enclosed by the bottom 29, the bottom refractory material 30, the inner shell 26, the lower air inlet ring 2, the upper air inlet ring 10, the refractory material fixing plate 9, the upper air inlet ring refractory material 12, the door 6, the door annular plate 8, the door refractory material 7, the door frame annular plate 5 and the pot 16; the induced draft fan 23 is communicated with the combustion chamber through an induced draft tube 22, a heat exchange coil 20 and a smoke tube 17; the upper air valve 24 is communicated with the combustion chamber through an upper air pipe 25, an upper air inlet ring 10 and a plurality of upper air inlet holes 11; the lower air valve 28 is communicated with the combustion chamber through a lower air pipe 27, a lower air inlet ring 2 and a plurality of lower air inlet holes 3; the lower air valve 28 is communicated with the combustion chamber through a lower air pipe 27, a lower air inlet ring 2 and a plurality of inclined air inlet holes 4;

a food steamer or a fixed food steamer cabinet is arranged on the food steamer fixing plate 15.

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, the lower circle of small holes are lower air inlet holes 3, and the connecting line of the centers of the lower air inlet holes 3 and the centers of the lower air inlet rings 2 is parallel to the horizontal plane; the round aperture of the upper side is an oblique air inlet 4, the included angle between the line of the center of the oblique air inlet 4 and the center of the lower air inlet ring 2 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 4 and the center of the lower air inlet ring 2 and the horizontal plane is a, then the angle has: 30 degrees < a < 90 degrees.

The draught fan 23 is removed, and the free ends of the upper and lower air valves are connected with the air outlet of the air blower to form the blast type energy-saving firewood burning cooking stove.

The pan 16 is circular or polygonal in shape.

When the utility model is used for burning firewood, the door 6 is opened to load fuel into the combustion chamber and ignite, the induced draft fan 23 is opened, the upper air valve 24 and the lower air valve 28 are adjusted to proper positions, the door 6 is closed, and the combustion chamber is changed into negative pressure. Under the action of pressure difference, air is rapidly sprayed to the lower part of the combustion chamber from the downdraft valve 28, the downdraft pipe 27, the lower air inlet ring 2 and the plurality of lower air inlet holes 3, and fuel at the bottom of the combustion chamber is greatly gasified. The utility model has the advantages that a circle of lower air inlet holes 3 on the lower air inlet ring 2 at the lower part of the combustion chamber adopts 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 can not be blocked at any time. Under the action of pressure difference, air is rapidly sprayed to the outer edge of the bottom of the pot 16 from the lower air valve 28, the lower air pipe 27, the lower air inlet ring 2 and the 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 bottom of the pot 16 by the air sprayed from the inclined air inlet holes 4, and all combustible gas contacting with the air curtain is rapidly combusted and emits a large amount of heat. Under the action of pressure difference, air is rapidly sprayed to the upper part of the combustion chamber from the upper air valve 24, the upper air pipe 25, the upper air inlet ring 10 and the upper air inlet holes 11, high-temperature combustible gas which rises to the upper part of the combustion chamber is mixed with air from the upper air inlet holes 11 for combustion, the pot 16 is heated, and water in the pot 16 is heated to generate steam; when the fuel is combusted in the combustion chamber, water in the inner cavity 14 of the jacket furnace wall is heated and steam is generated; the high-temperature combustion waste gas is discharged through the boiler 16, the smoke pipe 17, the heat exchange coil 20, the induced draft pipe 22 and the induced draft fan 23, and when the high-temperature combustion waste gas passes through the heat exchange coil 20, water in the boiler 16 is heated and steam is generated. The downdraft valve 28 is adjusted to adjust the intake air volume of the combustion chamber, thereby controlling the fuel gasification volume of the combustion chamber and further controlling the firepower of the combustion chamber. The upper air valve 24 is adjusted to adjust the air intake of the upper part of the combustion chamber, 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 induced draft fan 23, and the smoke discharged when the combustion is complete is colorless. And the lower air valve 28, the upper air valve 24 and the induced draft fan 23 are closed, the fuel in the combustion chamber is completely isolated from the air, and the combustion in the combustion chamber can be completely stopped. The utility model can be continuously used for a plurality of times and then ash removal is carried out once through the door.

The induced draft fan 23 is removed, the free ends of the upper and lower air valves are connected with the air outlet of an air blower, the air supply mode is changed into a blowing mode, the using method is the same as that of the induced draft mode, the blowing mode is suitable for being used in a relatively open environment, and the induced draft mode is suitable for being used in a relatively closed environment.

Claims

1. The utility model provides an energy-conserving firewood cooking stove, by shell, inner shell, end, door frame, refractory material, air inlet ring, draught fan, induced duct, blast gate, heat transfer coil pipe, pot are constituteed, characterized by: the bottom, the outer shell, the inner shell and the door frame annular plate together enclose a non-closed space as a jacket furnace wall; the bottom, the bottom refractory material, the inner shell, the lower air inlet ring, the upper air inlet ring, the refractory material fixing plate, the upper air inlet ring refractory material, the door annular plate, the door refractory material, the door frame annular plate and the pot together enclose a non-closed space which is a combustion chamber; the induced draft fan is communicated with the combustion chamber through an induced draft pipe, a heat exchange coil and a smoke pipe; the upper air valve is communicated with the combustion chamber through an upper air pipe, an upper air inlet ring and a plurality of upper air inlet holes; the lower air valve is communicated with the combustion chamber through a lower air pipe, a lower air inlet ring and a plurality of inclined air inlet holes; the lower air valve is communicated with the combustion chamber through a lower air pipe, a lower air inlet ring and a plurality of lower air inlet holes.

2. The energy-saving firewood cooking stove according to claim 1, characterized in that: a food steamer is arranged on the food steamer fixing plate, and a food steamer cabinet is arranged on the food steamer fixing plate or the food steamer cabinet.

3. The energy-saving firewood cooking stove according to 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 energy-saving firewood cooking 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 a with the contained angle of horizontal plane, then has: 30 degrees < a < 90 degrees.

5. The energy-saving firewood cooking stove according to claim 1, characterized in that: and removing the induced draft fan, and connecting the free ends of the upper and lower air valves with the air outlet of the air blower to form the blast type energy-saving firewood burning cooking stove.

6. The energy-saving firewood cooking stove according to claim 1, characterized in that: the shape of the pan is circular or polygonal.