CN216591815U

CN216591815U - Induced air type firewood and gas dual-purpose stove

Info

Publication number: CN216591815U
Application number: CN202121017162.8U
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 utility model relates to an induced-draft firewood and gas dual-purpose stove, which consists of a shell, a bottom, a door frame, refractory materials, an air inlet ring, a smoke pipe, an induced draft fan, an air pipe, an air valve, a gas valve and a stove head. The utility model adopts a three-dimensional air supply mode, and the fuel can be completely combusted, so that the indoor environment can be completely smokeless. 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. The fuel of the utility model has wide application range, and can use both firewood as fuel and gas as fuel. 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

Induced air type firewood and gas dual-purpose stove

Technical Field

The utility model relates to the technical field of stoves, in particular to an induced air type firewood and gas dual-purpose 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 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.

The gas stove is also called as a gas stove, and refers to a cooked food processing stove using liquefied gas and natural gas as fuels.

The fuel of the firewood stove only can be firewood, and the fuel of the gas stove only can be gas, so that at present, a stove capable of burning both firewood and gas does not exist in the market.

Disclosure of Invention

In view of the above situation, the present invention aims to provide an induced air type firewood and gas dual-purpose stove capable of burning firewood and gas, which can rapidly finish the processing task of cooked food of hundreds of jin and even thousands of jin 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 firewood gas dual-purpose kitchen, by shell, end, door frame, refractory material, air inlet ring, tobacco pipe, draught fan, tuber pipe, blast gate, gas valve, furnace end constitution, characterized by: a non-closed space which is a combustion chamber is enclosed by the bottom, the bottom refractory material, the lower air inlet ring, the upper air inlet ring, the lower part of the shell, the refractory material of the lower part of the shell, the door, the refractory material of the door, the inner annular plate of the door frame, the furnace end and the pot; the lower air inlet ring is communicated with the central air supply pipe; the induced draft fan is communicated with the combustion chamber through an induced draft pipe and a gap between the refractory material on the upper part of the shell and the boiler; the induced draft fan is communicated with the atmosphere through an induced draft pipe, a cooling pipe and a cooling valve; the upper and lower air valves are communicated with the combustion chamber through upper and lower air pipes, upper and lower air inlet rings, a plurality of upper and lower air inlet holes and inclined air inlet holes; the lower air valve is communicated with the combustion chamber through a lower air pipe, a lower air inlet ring, a central air supply pipe, a vertical central air supply pipe and a plurality of central air inlet holes; the upper part of the combustion chamber is provided with a gas furnace end; the furnace end air valve is communicated with the combustion chamber through a furnace end air mixing pipe, a furnace end inner cavity and a plurality of furnace end mixed air outlet holes; the furnace end air valve is communicated with the combustion chamber through a furnace end air mixing pipe, a furnace end inner cavity and an ever-burning fire air supply hole; the gas pipe is communicated with the combustion chamber through a gas valve, a gas inlet pipe, a furnace end gas-air mixing pipe, a furnace end inner cavity and a plurality of furnace end mixed gas outlet holes; the ever-open-fire gas pipe is communicated with the combustion chamber through the ever-open-fire gas valve, the ever-open-fire tube and the ever-open-fire gas outlet hole.

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 degrees < a < 90 degrees.

The upper part of the vertical central air supply pipe is provided with a circle of small holes which are central air inlet holes.

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

1. the utility model has the advantages that the air inlet quantity is large and uniform, the gasification quantity of fuel combustion is large, and the air inlet holes can not be blocked at any time.

2. 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.

3. The firepower of the utility model is adjustable from large to small, and the utility model can be used for processing the raw materials into various cooked foods in the processing modes of steaming, frying, boiling and the like.

3. 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.

4. The fuel of the utility model has wide application range, and can use both firewood as fuel and gas as fuel.

5. 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 sectional view of an induced draft type firewood gas dual-purpose stove.

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

The utility model is further illustrated below with reference to fig. 1, fig. 2 and the examples:

in the figure, 1, legs, 2, a bottom, 3, a lower air inlet ring, 4, a lower air inlet hole, 5, an inclined air inlet hole, 6, a door frame annular plate, 7, a door annular plate, 8, a door, 9, a door refractory material, 10, a furnace end mixed air outlet hole, 11, a furnace tube, 12, an upper air inlet ring, 13, an upper air inlet hole, 14, a shell, 15, a flame guide plate, 16, a shell upper part refractory material, 17, a pot, 18, an induced draft tube, 19, an induced draft fan, 20, a cooling tube, 21, a cooling valve, 22, an upper air pipe, 23, an upper air valve, 24, a shell lower part refractory material, 25, a lower air pipe, 26, a lower air valve, 27, a bottom refractory material, 28, a central air inlet hole, 29, a vertical central air supply tube, 30, a vertical central air supply tube cover, 31, a central air supply tube, 32, an electronic ignition rod, 33, 34, a long open fire valve, 35, 36, a furnace end air mixed gas tube, 37. the burner comprises a burner air valve, 38 a gas inlet pipe, 39 a gas valve, 40 a gas pipe, 41 an ever-burning open fire air supply hole, 42 an ever-burning open fire air supply guide plate, 43 an ever-burning open fire gas outlet hole, 44 an ever-burning open fire cap, 45 a burner end enclosure and 46 a burner inner cavity.

Detailed Description

Fig. 1 and 2 illustrate a structure of an induced air type firewood gas dual-purpose stove.

An induced air type firewood and gas dual-purpose stove comprises a shell, a bottom, a door frame, refractory materials, an air inlet ring, a smoke pipe, an induced draft fan, an air pipe, an air valve, a gas valve and a furnace end, wherein legs 1 and the bottom 2 are fixedly installed together, the bottom 2 and the lower end of the shell 14 are fixedly installed together, the upper edge of the bottom 2 is provided with the refractory materials 27, an induced draft pipe 18 and the shell 14 are fixedly installed together, a door frame annular plate 6 and the shell 14 are fixedly installed together, a door annular plate 7 and a door 8 are fixedly installed together, the door annular plate 7 and the inner side of the door 8 are provided with the refractory materials 9, the door 8 and the door frame annular plate 6 are hinged together, the inner side of the upper part of the shell 14 is provided with the refractory materials 16 of the upper part of the shell, the inner side of the lower part of the shell 14 is provided with the refractory materials 24 of the lower part of the shell, the pot 17 is fixedly installed at the upper end of the shell 14, and the lower air inlet ring 3 is fixedly installed in the refractory materials 27; a non-closed space is defined by the bottom 2, the bottom refractory material 27, the lower air inlet ring 3, the lower part of the shell 14, the lower part refractory material 24 of the shell, the door 8, the door refractory material 9, the door frame annular plate 6, the furnace end and the pot 17 together to be a combustion chamber; the lower air inlet ring 3 is communicated with a vertical central air supply pipe 29 through a central air supply pipe 31; the draught fan 19 is communicated with the combustion chamber through a draught pipe 18 and a gap between the refractory material 16 on the upper part of the shell and the boiler 17; the induced draft fan 19 is communicated with the atmosphere through an induced draft pipe 18, a cooling pipe 20 and a cooling valve 21; the upper air valve 23 is communicated with the combustion chamber through an upper air pipe 22, an upper air inlet ring 12 and a plurality of upper air inlet holes 13; the lower air valve 26 is communicated with the combustion chamber through the lower air pipe 25, the lower air inlet ring 3 and the plurality of lower air inlet holes 4; the vertical central air supply pipe cover 30 is fixedly arranged at the upper end of the vertical central air supply pipe 29, and the upper part of the vertical central air supply pipe 29 is provided with a circle of small holes which are central air inlet holes 28; the lower air valve 26 is communicated with the combustion chamber through a lower air pipe 25, a lower air inlet ring 3, a central air supply pipe 31, a vertical central air supply pipe 29 and a plurality of central air inlet holes 28; one end of a furnace tube 11 is fixed with a gas-air mixing tube 36, the other end of the furnace tube 11 is sealed by a furnace end socket 45, a flame guide plate 15 is fixedly installed on the furnace tube 11, a pilot flame air supply guide plate 42 is fixedly installed on a pilot flame air supply hole 41 on the furnace tube 11, a lighting rod 32 and a pilot flame tube 33 are fixedly installed on the furnace tube 11, a pilot flame cap 44 is fixedly installed on the pilot flame tube 33, and a pilot flame gas outlet 43 is arranged on the pilot flame cap 44; the furnace tube 11, the ignition rod 32, the long open fire tube 33, the air-air mixing tube 36, the flame guide plate 15, the long open fire air supply guide plate 42 and the furnace end enclosure 45 jointly form a furnace end; the furnace end is installed and fixed in the refractory material 24 at the lower part of the shell; the furnace end air valve 37 is communicated with the combustion chamber through the furnace end air mixing pipe 36, the furnace end inner cavity 46 and the plurality of furnace end mixed air outlet holes 10; the furnace end air valve 37 is communicated with the combustion chamber through a furnace end air mixing pipe 36, a furnace end inner cavity 46 and a long open fire air supply hole 41; the gas pipe 40 is communicated with the combustion chamber through a gas valve 39, a gas inlet pipe 38, a burner gas-air mixing pipe 36, a burner inner cavity 46 and a plurality of burner mixed gas outlet holes 10; the ever-open flame gas pipe 35 is communicated with the combustion chamber through the ever-open flame gas valve 34, the ever-open flame pipe 33 and the ever-open flame gas outlet hole 43.

The upper air inlet ring 12 is provided with one or more circles of small holes which are upper air inlet holes 13.

Two circles of small holes are formed in the lower air inlet ring 3, one circle of small holes below the lower air inlet ring 3 are lower air inlet holes 4, and a connecting line of the centers of the lower air inlet holes 4 and the centers of the lower air inlet rings 3 is parallel to the horizontal plane; the round of aperture on lower ring 3 is oblique inlet opening 5, and the line of oblique inlet opening 5 center and lower ring 3 center and the contained angle of horizontal plane are greater than 30 degrees, are less than 90 degrees, if the line of oblique inlet opening 5 center and lower ring 3 center and the contained angle of horizontal plane are a, then have: 30 degrees < a < 90 degrees.

The upper part of the vertical central air supply pipe 29 is provided with a circle of small holes which are central air inlet holes 28.

When the utility model is used for burning firewood, the ever-burning open fire gas valve 34 is closed, the gas valve 39 is closed, the upper air valve 23, the lower air valve 26 and the furnace end air valve 37 are adjusted to proper positions, the door 8 is opened to load fuel into the combustion chamber and ignite, the door 8 is closed, the induced draft fan 19 is opened, and the combustion chamber is changed into negative pressure. Under the action of pressure difference, air is rapidly sprayed to the bottom of the combustion chamber from the downdraft valve 26, the downdraft pipe 25, the lower air inlet ring 3 and the plurality of lower air inlet holes 4, and fuel at the bottom of the combustion chamber is greatly gasified; under the action of pressure difference, air is quickly sprayed to the lower part of the combustion chamber from the lower air valve 26 through the lower air pipe 25, the lower air inlet ring 3, the central air supply pipe 31, the vertical central air supply pipe 29 and the plurality of central air inlet holes 28 to participate in the gasification of fuel at the lower part of the combustion chamber; the utility model adopts the transverse air inlet mode of the ring of lower air inlet holes 4 on the lower air inlet ring 3 at the lower part of the combustion chamber and the plurality of central air inlet holes 28 on the vertical central air supply pipe 29, 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 bottom of the pot 17 from the lower air valve 26, the lower air pipe 25, the lower air inlet ring 3 and the inclined air inlet holes 5, a circle of air curtain is formed from the inclined air inlet holes 5 to the outer edge of the bottom of the pot 17 by the air sprayed from the inclined air inlet holes 5, 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 23, the upper air pipe 22, the upper air inlet ring 12 and the upper air inlet hole 13, and high-temperature combustible gas rising to the upper part of the combustion chamber is mixed with air coming out of a circle of upper air inlet holes 13 for combustion; under the action of pressure difference, air is rapidly sprayed to the upper part of the combustion chamber from the furnace end air valve 37, the furnace end air mixing pipe 36, the furnace end inner cavity 46 and the plurality of furnace end mixed air outlet holes 10, and high-temperature combustible gas rising to the upper part of the combustion chamber is mixed with air from the plurality of furnace end mixed air outlet holes 10 for combustion; the boiler 17 is heated, and the combustion waste gas is discharged through a gap between the boiler 17 and the refractory material 16 on the upper part of the shell, an induced draft tube 18 and an induced draft fan 19. The downdraft valve 26 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 23 is adjusted to adjust the air inlet quantity at the upper part of the combustion chamber to ensure that the combustible gas is completely combusted, and the burner air valve 37 is adjusted to adjust the air inlet quantity at the upper part of the combustion chamber to ensure that the combustible gas is completely combusted; the degree of complete combustion can be judged according to the blackness of the smoke discharged from the draught fan 19, and the smoke discharged when the combustion is complete is colorless. And closing the lower air valve 26, the upper air valve 23, the furnace end air valve 37 and the induced draft fan 19, completely isolating the fuel in the combustion chamber from air, and completely stopping the combustion in the combustion chamber. The utility model can be continuously used for a plurality of times and then deashing once through the door.

When the utility model burns gas, the upper air valve 23 is closed, the lower air valve 26 is closed, the induced draft fan 19 is opened, the combustion chamber becomes negative pressure, the furnace end air valve 37 is opened, and under the action of pressure difference, air is quickly blown to the long open fire cap 44 by the furnace end air valve 37, the furnace end air mixing pipe 36, the furnace end inner cavity 46, the long open fire air supply hole 41 and the long open fire air supply guide plate 42; the pilot flame valve 34 is opened, the fuel gas is discharged from the pilot flame gas outlet hole 43 on the pilot flame cap 44 through the pilot flame gas pipe 35, the pilot flame gas valve 34 and the pilot flame pipe 33, and is mixed with the air blown to the pilot flame cap 44, and then is ignited by the electric spark of the electronic ignition rod 32, and the pilot flame starts to burn; when the gas valve 39 is opened, gas enters the burner gas-air mixing pipe 36 through the gas pipe 40, the gas valve 39 and the gas inlet pipe 38 to be mixed with wind to form mixed gas, the mixed gas enters the burner inner cavity 46, the mixed gas is discharged from the plurality of burner mixed gas outlet holes 10 and is ignited by burning ever-burning naked flame, the burning flame is guided by the flame guide plate 15, and the pot 17 is heated. The combustion waste gas is discharged through the gap between the refractory material 16 on the upper part of the shell and the pot 17 and the induced draft tube 18.

In the above operation process of firewood and gas burning, if the temperature of the exhaust gas entering the induced draft fan is too high, the temperature reducing valve 21 is opened, the air enters the induced draft pipe 18 through the temperature reducing valve 21 and the temperature reducing pipe 20, and the temperature of the exhaust gas entering the induced draft fan 19 is reduced.

Claims

1. The utility model provides an induced air formula firewood gas dual-purpose kitchen, by shell, end, door frame, refractory material, air inlet ring, tobacco pipe, draught fan, tuber pipe, blast gate, gas valve, furnace end constitution, characterized by: a non-closed space which is a combustion chamber is enclosed by the bottom, the bottom refractory material, the lower air inlet ring, the upper air inlet ring, the lower part of the shell, the refractory material of the lower part of the shell, the door, the refractory material of the door, the inner annular plate of the door frame, the furnace end and the pot; the lower air inlet ring is communicated with the central air supply pipe; the induced draft fan is communicated with the combustion chamber through an induced draft pipe and a gap between the refractory material on the upper part of the shell and the boiler; the induced draft fan is communicated with the atmosphere through an induced draft pipe, a cooling pipe and a cooling valve; the upper and lower air valves are communicated with the combustion chamber through upper and lower air pipes, upper and lower air inlet rings, a plurality of upper and lower air inlet holes and inclined air inlet holes; the lower air valve is communicated with the combustion chamber through a lower air pipe, a lower air inlet ring, a central air supply pipe, a vertical central air supply pipe and a plurality of central air inlet holes; the upper part of the combustion chamber is provided with a gas furnace end; the furnace end air valve is communicated with the combustion chamber through a furnace end air mixing pipe, a furnace end inner cavity and a plurality of furnace end mixed air outlet holes; the furnace end air valve is communicated with the combustion chamber through a furnace end air mixing pipe, a furnace end inner cavity and an ever-burning fire air supply hole; the gas pipe is communicated with the combustion chamber through a gas valve, a gas inlet pipe, a furnace end gas-air mixing pipe, a furnace end inner cavity and a plurality of furnace end mixed gas outlet holes; the ever-open fire gas pipe is communicated with the combustion chamber through the ever-open fire gas valve, the ever-open fire pipe and the ever-open fire gas outlet hole.

2. The induced-draft firewood gas dual-purpose 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.

3. The induced-draft firewood gas dual-purpose stove according to claim 1, characterized in that: two circles of small holes are arranged on 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.

4. The induced-draft firewood gas dual-purpose stove according to claim 1, characterized in that: the upper part of the vertical central air supply pipe is provided with a circle of small holes which are central air inlet holes.