CN215336474U

CN215336474U - High-efficiency energy-saving gas stove

Info

Publication number: CN215336474U
Application number: CN202121052830.0U
Authority: CN
Inventors: 刘效洲; 林培斌; 林远劲
Original assignee: Guangdong University of Technology
Current assignee: Guangdong University of Technology
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2021-12-28
Anticipated expiration: 2031-05-17

Abstract

The utility model discloses a high-efficiency energy-saving gas stove which comprises a cooking bench, a combustion chamber and an air inlet chamber, wherein a burner and a mixing device are arranged in the combustion chamber, the cooking bench is arranged at the upper end of the combustion chamber, the air inlet chamber is arranged at the periphery of the combustion chamber, a first air port communicated with the air inlet chamber is arranged at the bottom end of the combustion chamber, and an air inlet of the air inlet chamber is arranged at the annular edge of the cooking bench; the air inlet intracavity still installs the gas pipe, the gas pipe is including the income trachea, even trachea and a plurality of outlet duct of intercommunication each other, even trachea is ring shape, and place in the bottom below in burning chamber, all the outlet duct is the circumference equipartition formula and installs on the even trachea, each the gas nozzle is all installed to the end of outlet duct. The gas-cooker of this design structure science is compact, economical and practical, through setting up mixing arrangement and the even gas pipe of annular, realizes that air and gas are even to mix the postcombustion in advance, improves combustion efficiency, reaches energy-efficient purpose.

Description

High-efficiency energy-saving gas stove

Technical Field

The utility model relates to the field of stove structures, in particular to a high-efficiency energy-saving gas stove.

Background

At present, atmospheric type burners are mostly adopted in the cooking industry, due to structural reasons, insufficient combustion of gas is easily caused, the problem that flame intensity sprayed by a burner is not strong is solved, heat loss is large, and energy waste is easily caused after long-time use. In addition, a huge gap is formed between the pot bottom and the burner of the existing stove, air is supplemented to support combustion through the gap, but because the air and the flame are mixed late and the flow is difficult to accurately control, red flame or yellow flame phenomenon often appears in the flame, the combustion efficiency is low, the discharge amount of carbon monoxide is increased, and a large amount of energy is wasted.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a high-efficiency gas stove adopting premixed combustion of air and gas.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the efficient energy-saving gas stove comprises a stove body, wherein a hearth, a combustion chamber and an air inlet chamber are formed in the stove body, a burner and a mixing device are installed in the combustion chamber, the mixing device is arranged below the burner, the hearth is arranged at the upper end of the combustion chamber, the air inlet chamber is arranged on the periphery of the combustion chamber, a first air port communicated with the air inlet chamber is arranged at the bottom end of the combustion chamber, and an air inlet of the air inlet chamber is arranged at the annular edge of the hearth; the gas pipe is still installed to the air inlet intracavity, the gas pipe is including the income trachea, even trachea and a plurality of outlet duct of intercommunication each other, even trachea is ring shape, and place in the bottom below in burning chamber, all the outlet duct is the circumference equipartition formula and installs on the even trachea, and all the end of outlet duct is aimed at the extension line that descends of mixing arrangement's axis, each the gas nozzle is all installed to the end of outlet duct. The air inlet chamber is arranged in the periphery of burning chamber, and the heat that the effective absorption burning chamber produced heats combustion air, and combustion air mixes the gas entering nozzle of gas nozzle again, then spouts the nozzle burning and forms flame heating bottom of a boiler, reaches the purpose that improves combustion efficiency, and the gas pipe of this design can guarantee to have sufficient draft to inhale the air to make the gas can mix and input to burning chamber with the air uniformly.

Furthermore, install first absorber plate on the top of a kitchen range, the high temperature flue gas of top of a kitchen range discharges into atmosphere behind first absorber plate, therefore first absorber plate can absorb the heat of high temperature flue gas, can exchange the pot/stove of top of a kitchen range with the heat of first absorber plate with radiation transfer's mode on the one hand, on the other hand first absorber plate plays the heat-retaining effect for the temperature of top of a kitchen range surrounding risees, because the air intake of air inlet chamber sets up in the annular edge of top of a kitchen range, accessible heat transfer makes the combustion-supporting air temperature in the air inlet chamber promote rapidly like this, reaches the purpose that improves combustion efficiency.

Furthermore, a second heat absorption plate is arranged in the air inlet cavity, and plays roles of heat absorption and heat storage, so that the temperature of combustion air in the air inlet cavity is further increased, and the purpose of improving the combustion efficiency is achieved.

Furthermore, the first heat absorbing plate and/or the second heat absorbing plate are/is made of porous ceramic plates, the porous ceramic materials are made of high-quality raw materials such as corundum, silicon carbide and cordierite as main materials through molding and special high-temperature sintering processes, and the porous ceramic materials have the advantages of high temperature resistance, high pressure resistance, acid corrosion resistance, alkali corrosion resistance, organic medium corrosion resistance, good biological inertia, controllable pore structure, high open porosity, long service life, good product regeneration performance and the like. Preferably, the first heat absorbing plate and/or the second heat absorbing plate are/is made of porous alumina ceramic plates or porous aluminum nitride ceramic plates, and the alumina ceramic plates and the aluminum nitride ceramic plates are good in heat conductivity and beneficial to improving the combustion efficiency.

Furthermore, the mixing device adopts turbine blades, is arranged at the first air inlet, and uniformly mixes air sucked into the air inlet cavity and gas due to the suction force generated by the high-speed ejection of the gas through the mixing device and then burns the air and the gas at the burner, so that the combustion efficiency is improved.

Furthermore, the lateral wall of burning chamber is equipped with the intercommunication the second wind gap in air inlet chamber, the second wind gap is located on the second absorber plate, because the air will heat up through the second absorber plate, the air inlet chamber will form the region that two parts temperature is different about the second absorber plate department, set up the second wind gap, can directly carry out the secondary to burning chamber and mend the wind, will with the air intensive mixing burning that gets into by the secondary wind gap after nozzle flame tentatively forms, realize the premix burning, thoroughly solve the problem that the secondary air mixes the delay, improve combustion efficiency.

Furthermore, the second air port is provided with an air door for adjusting the size of the air port, the air door can be of a rotating shutter structure or a push-pull type gate structure, and the air inlet amount of the air door can be controlled by adjusting the size of the air port.

Further, the number of the outlet pipes is preferably 6 or 8.

Furthermore, for the drainage effect of gas and high temperature air is better, first wind gap department still is provided with the kuppe, the kuppe is by the loudspeaker form of supreme convergent down, each the end of outlet duct stretches into to in the kuppe.

The utility model has the beneficial effects that: the gas-cooker of this design structure science is compact, economical and practical, through setting up mixing arrangement in combustion chamber inside, sets up wind gap and the even gas pipe of annular in combustion chamber bottom, realizes that air and gas pass through mixing arrangement evenly to mix in advance the back and burn to nozzle department, improves combustion efficiency. The first heat absorbing plate is used for sealing the cooking bench, high-temperature smoke exhausted into the atmosphere is absorbed and utilized, energy waste is avoided, meanwhile, the heat is recycled and utilized for heating air in the air inlet cavity, the second heat absorbing plate and the second air inlet are arranged in the air inlet cavity, a secondary premixed combustion mode of flame can be achieved while combustion air is preheated, the efficiency of the gas stove is greatly improved, and the purposes of high efficiency and energy saving are achieved.

Drawings

FIG. 1 is a schematic view of the present invention in cross-section in overall configuration;

FIG. 2 is a block diagram of the working principle of the present invention;

fig. 3 is a schematic view of the structure of the gas pipe of the present invention.

Detailed Description

The utility model will be further described with reference to the accompanying drawings. Wherein the arrows in fig. 2 indicate the air flow direction.

High-efficient energy-saving gas-cooker, as shown in fig. 1, including the kitchen body, the kitchen body includes outer wall 11 and inner wall 12, encloses to cover in the inner wall 12 and forms the combustion chamber, install nozzle 100 and mixing arrangement 110 in the combustion chamber, mixing arrangement 110 adopts the turbine blade that can autogiration, and mixing arrangement 110 inhales air and the gas in the air inlet chamber and carries out the homogeneous mixing, then carries out abundant burning in nozzle department. An air inlet cavity is formed between the outer wall 11 and the inner wall 12 and is arranged at the periphery of the combustion cavity, so that the heat absorption and the temperature rise of combustion air are facilitated; the upper end of the combustion chamber is provided with a hearth support 21, a hearth side plate 22 and a hearth bottom plate 23, the hearth side plate 22 and the hearth bottom plate 23 are enclosed to form a hearth, and the first heat absorption plate 20 is installed on the hearth. The air inlet of the air inlet cavity is formed in the annular edge of the cooking bench, the second heat absorbing plate 30 is installed in the air inlet cavity, the second air port 102 communicated with the air inlet cavity is formed in the inner wall 12 of the combustion cavity, and the second air port 102 is formed in the second heat absorbing plate 30. The bottom in burning chamber is provided with bottom plate 13, is equipped with the first wind gap 101 of intercommunication air inlet chamber on bottom plate 13, and the bottom in burning chamber is supported by support 14, still install gas pipe 4 in the air inlet chamber and arrange the gas nozzle in gas pipe 4 head, the below of bottom plate 13 is located to gas pipe 4. The high-speed gas sprayed from the gas nozzle can suck the air in the air inlet cavity, is uniformly mixed by the mixing device 110, and then enters the burner for full combustion. The bottom of the combustion cavity is provided with a first air guide sleeve 103, the position of the first air port 101 is further provided with a second air guide sleeve 104, the first air guide sleeve 103 and the second air guide sleeve 104 are in a horn shape gradually reduced from bottom to top, the lower end of the first air guide sleeve 103 covers all the gas nozzles, and the design can better guide gas and high-temperature air in the air inlet cavity into the combustion cavity.

As shown in fig. 3, the gas pipe 4 includes an air inlet pipe 41, an air homogenizing pipe 42 and a plurality of air outlet pipes 43 which are communicated with each other, the air homogenizing pipe 42 is circular and is arranged below the bottom end of the combustion chamber, all the air outlet pipes 43 are circumferentially and uniformly arranged on the air homogenizing pipe 42, the tail ends of all the air outlet pipes 43 are aligned with the lower extension line of the axis of the mixing device 110, and the gas nozzle is arranged at the tail end of each air outlet pipe 43. The gas pipe of this design can guarantee that the gas is high-speed spout and utilize the residual pressure input to the combustion chamber after drawing the air. Wherein, the number of the outlet pipes 43 is preferably 6 or 8. As the best choice of this scheme, in order to make better water conservancy diversion of gas to the combustion chamber, the terminal of each outlet duct 43 can be the arc of perk upwards for the gas nozzle can be better aim at first wind gap 101, or each the terminal of outlet duct 43 directly stretches into in the second kuppe 104.

Furthermore, the outer wall 11 is made of a carbon steel plate, so that the cost is low, and the appearance and the rigidity are good. The inner wall 12 and the bottom plate 13 are made of cast iron, so that the structure is firm and durable, and the production is convenient. The hearth side plate 22 and the hearth bottom plate 23 are made of stainless steel plates, so that the appearance is exquisite, the rust is not easy to occur, and the cleaning is convenient.

Furthermore, an air door for adjusting the size of the air opening can be installed at the second air opening 102, the air door can be of a rotating shutter structure or a push-pull type gate structure, and the air inlet amount is controlled by adjusting the size of the air opening.

Further, the first heat absorbing plate 20 and/or the second heat absorbing plate 30 are/is made of porous ceramic plates, the porous ceramic materials are made of high-quality raw materials such as corundum, silicon carbide and cordierite as main materials through molding and special high-temperature sintering processes, and the porous ceramic materials with open pore diameters and high open porosity have the advantages of high temperature resistance, high pressure resistance, acid resistance, alkali resistance, organic medium corrosion resistance, good biological inertia, controllable pore structures, high open porosity, long service life, good product regeneration performance and the like. Preferably, the first heat absorbing plate 20 and/or the second heat absorbing plate 30 are made of porous alumina ceramic plates or porous aluminum nitride ceramic plates, and the alumina ceramic plates and the aluminum nitride ceramic plates have good thermal conductivity, which is beneficial to improving the combustion efficiency.

Further, the mixing device 110 is preferably disposed at the outlet of the second air guide sleeve 104, so that the air and the gas have a longer distance to reach the burner for enhanced mixing, thereby improving the combustion efficiency.

As shown in fig. 2, the working principle of the design is as follows: the cooking pot 5 is placed on a cooking bench support 21, a first heat absorption plate 20 is arranged on the cooking bench, one end of the first heat absorption plate 20 is connected with the cooking pot 5, and the other end of the first heat absorption plate is connected with a cooking bench side plate 22, so that the cooking bench forms a sealing structure. The high temperature flue gas generated by the combustion passes through the first heat absorption plate 20 and is discharged into the atmosphere. Therefore, the first heat absorption plate 20 absorbs the heat of the high-temperature flue gas to turn red, and the temperature can reach about 600 ℃. Combustion-supporting cold air is sucked in by suction force generated by the injection action of a gas nozzle through an annular gap (namely an air inlet of an air inlet cavity) between the hearth side plate 22 and the outer wall 11, and firstly, heat is exchanged with high-temperature flue gas through the hearth side plate 22 to be changed into medium-temperature air at about 100 ℃; part of the medium temperature air enters the combustion chamber through the second air port 102 for combustion supporting, and the quantity of the medium temperature air can be adjusted through the opening degree of the air doors arranged on the second air port 102. The other part of the medium temperature air passes through the second heat absorbing plate 30 by the suction force generated by the injection action of the fuel gas nozzle. The first heat absorption plate 20 at about 600 ℃ transfers heat to the hearth bottom plate 23 through radiation, and the temperature of the hearth bottom plate 23 can rise to 450 ℃; the cooktop bottom plate 23 then heats the second heat absorbing plate 30 to about 300 degrees by radiation. The temperature of the medium-temperature air passing through the second heat absorbing plate 30 can rise to more than 200 ℃ and become high-temperature air. The gas enters a plurality of gas nozzles which are annularly arranged through the gas pipe 4 and is sprayed out at a high speed, high-temperature air with the temperature of more than 200 ℃ is injected to form a mixture of natural gas (or other gas, such as coal gas, petroleum gas and the like) and the high-temperature air, the mixture is further uniformly mixed through the mixing device 110 and then enters the burner nozzle, and then the mixture is sprayed out to form a flame to heat the bottom of the pot. After the flame is formed primarily, the flame and the medium-temperature air entering from the second air port 102 are mixed and combusted fully, and the problem of secondary air mixing delay is solved thoroughly. Because the gas and the air are mixed well in advance and fully combusted in the combustion chamber, the combustion can be basically in a premixed combustion mode, and the heat efficiency of the gas stove is greatly improved.

The above description is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made in the claims and the description of the present invention are within the scope of the present invention.

Claims

1. The efficient energy-saving gas stove is characterized by comprising a stove body, wherein the stove body is provided with a hearth, a combustion chamber and an air inlet chamber, a burner and a mixing device are arranged in the combustion chamber, the mixing device is arranged below the burner, the hearth is arranged at the upper end of the combustion chamber, the air inlet chamber is arranged at the periphery of the combustion chamber, a first air port communicated with the air inlet chamber is arranged at the bottom end of the combustion chamber, and an air inlet of the air inlet chamber is arranged at the annular edge of the hearth; the gas pipe is still installed to the air inlet intracavity, the gas pipe is including the income trachea, even trachea and a plurality of outlet duct of intercommunication each other, even trachea is ring shape, and place in the bottom below in burning chamber, all the outlet duct is the circumference equipartition formula and installs on the even trachea, and all the end of outlet duct is aimed at the extension line that descends of mixing arrangement's axis, each the gas nozzle is all installed to the end of outlet duct.

2. The high efficiency and energy saving gas range as claimed in claim 1, wherein a first heat absorption plate is installed on the cooktop.

3. The efficient and energy-saving gas stove as claimed in claim 2, wherein a second heat absorbing plate is installed in the air intake chamber.

4. The high efficiency and energy saving gas range as claimed in claim 3, wherein the first heat absorbing plate and/or the second heat absorbing plate is a porous ceramic plate.

5. The high efficiency and energy saving gas range as claimed in claim 1, wherein the mixing means employs turbine blades.

6. The efficient energy-saving gas stove as claimed in claim 3, wherein the side wall of the combustion chamber is provided with a second tuyere communicated with the air inlet chamber, and the second tuyere is arranged on the second heat absorbing plate.

7. The efficient and energy-saving gas stove as claimed in claim 6, wherein the second tuyere is provided with a damper for adjusting the size of the tuyere.

8. The high efficiency energy saving gas range according to claim 1, wherein the number of the outlet pipes is 6 or 8.

9. The efficient energy-saving gas stove as claimed in claim 1 or 8, wherein a flow guiding cover is arranged at the first tuyere, and the flow guiding cover is in a horn shape which is gradually reduced from bottom to top.

10. The efficient and energy-saving gas stove as recited in claim 9, wherein each outlet pipe has a distal end extending into the dome.