CN217763411U - High-power gas furnace end and combustor suitable for multiple air supplies - Google Patents

Abstract

The utility model relates to a high-power gas furnace end and a burner suitable for multiple gas sources, the furnace end comprises a furnace body, a burner arranged in the furnace body and an ignition device arranged on one side of the burner, a plurality of first burning ports are arranged in the burner, and a plurality of second burning ports are arranged outside the burner; the bottom of the burner is uniformly provided with a plurality of air inlets from bottom to top, the air inlets are communicated with the first combustion port and the second combustion port, and combustible gas introduced from the lower part of the furnace body is guided into the first combustion port and the second combustion port and is ignited and combusted by the ignition device. The utility model discloses not only can show the thermal efficiency and the power that promote gas cooking utensils, simple structure, with low costs moreover can also be suitable for multiple air supply.

Description

High-power gas furnace end and combustor suitable for multiple air supplies

Technical Field

The utility model relates to a gas equipment technical field, in particular to high-power gas furnace end and combustor suitable for multiple air supply.

Background

The existing commercial gas stoves mainly comprise two types, wherein one type is directly connected with combustible gas for combustion, and the other type is that the combustible gas and air are premixed to form premixed gas and then the premixed gas is introduced into the premixed gas stove for combustion, wherein the premixed gas stove is mainly used in families; the latter is mainly applied to places such as dining halls, restaurants, hotels, food processing factories and the like, and is characterized by high power, quick heating and convenient fire adjustment.

Among the premix gas-cooker commonly used at present, there is a structure that, as shown in fig. 1, a combustor 2 is placed in a burner 1, the inner wall of the combustor 2 is provided with a plurality of gas nozzles 3, and the premixed gas is jetted from the gas nozzles 3 and then combusted to form flame, and the flame formed by each gas nozzle 3 in the combustor 2 converges to generate a large amount of heat, which can be used for cooking. At present, if the power of a gas stove needs to be increased, the gas stove can be realized only by increasing the size of the combustor 2, but the increase of the combustor 2 inevitably leads to the increase of the whole volume of the gas stove, because the volume increasing space of the gas stove is limited, the size and the power increase of the flame of the combustor 2 are also limited, and the increase of the size of the high-power gas stove brings more disadvantages, such as the compression of the kitchen space, the increase of the cost of the gas stove, the reduction of the heat efficiency of the gas stove and the like.

SUMMERY OF THE UTILITY MODEL

Therefore, a need exists for a high-power gas burner and a burner suitable for various gas sources, which not only can significantly improve the heat efficiency and power of the gas cooker, but also has a simple structure and low cost, and can be suitable for various gas sources.

In order to achieve the above purpose, the present invention adopts the following technical solutions.

The utility model provides a high-power gas furnace end suitable for various gas sources, which comprises a furnace body, a burner arranged in the furnace body and an ignition device arranged on one side of the burner, wherein the burner is in a hollow cylinder shape, a plurality of first combustion ports are arranged in the burner, and a plurality of second combustion ports are arranged outside the burner; the bottom of the burner is uniformly provided with a plurality of air inlets from bottom to top, the air inlets are communicated with the first combustion port and the second combustion port, and combustible gas introduced from the lower part of the furnace body is guided into the first combustion port and the second combustion port and is ignited and combusted by the ignition device.

Preferably, the combustor is of an integrated structure, and a plurality of annular notches are respectively cut in the circumferential direction along the inner wall and the outer wall of the combustor.

Preferably, the lower part of furnace body is equipped with the air inlet that is used for being connected with the combustible gas source be provided with a distributor between air inlet and the combustor, the distributor is provided with round annular pit be provided with a plurality of ventholes in the annular pit, the venthole with the inlet port is corresponding.

Preferably, the burner is supported above the distributor, and the bottom of the burner can just seal the annular pit, so that an air pressure buffer zone is formed in the annular pit, and combustible gas enters the burner through the air inlet after entering the air pressure buffer zone through the air outlet.

Preferably, the air inlet is two circles, including the first air inlet that the circle distributes in the inboard and the second air inlet that the circle distributes in the outside, first air inlet with a plurality of annular incisions of cutting along the circumference of combustor inner wall link up, form a plurality of first combustion ports, the second air inlet with a plurality of annular incisions of cutting along the circumference of combustor outer wall link up, form a plurality of second combustion ports.

Preferably, the burner also comprises a fire protection ring, and an annular gap is formed between the fire protection ring and the burner.

Preferably, the fire guard is arranged between the furnace body and the burner or integrally formed with the furnace body.

Preferably, the pilot device has a pilot port, which communicates with the annular gap.

Preferably, the upper part of the pilot device is provided with a pilot cap, and the pilot port is positioned below the pilot cap and is suitable for guiding the flame of the pilot device to the annular gap so as to pilot the combustible gas in the annular gap.

The utility model also provides a high-power burner suitable for various gas sources, which is hollow cylinder-shaped, the interior of the burner is provided with a plurality of first burning ports, and the exterior of the burner is provided with a plurality of second burning ports; the bottom of the burner is uniformly provided with a plurality of air inlets from bottom to top, the air inlets are communicated with the first combustion port and the second combustion port, and combustible gas is guided into the first combustion port and the second combustion port.

The utility model discloses an inside and the outside of combustor are provided with a plurality of first burner ports and second burner port respectively for the gas-cooker can form a combustion area respectively in the inside and the outside of combustor, thereby has increased combustion area, compares the combustor of equal specification, and the power is bigger, and the thermal efficiency is higher. Because contain the utility model discloses a gas-cooker spare part of combustor is few, simple structure, and consequently the manufacturing cost of product is lower, is favorable to reducing the purchase cost of trade company, improves the profit of trade company.

Drawings

FIG. 1 is a schematic cross-sectional view of a premix gas range according to the prior art;

FIG. 2 is a schematic view of an overall structure of a medium power gas burner of the first embodiment;

FIG. 3 is a schematic sectional view of a high power gas burner of the first embodiment;

fig. 4 and 5 are schematic exploded structural views of a medium-power gas burner of the first embodiment;

FIG. 6 is a schematic view of the overall structure of a high power burner according to one embodiment of the present invention;

fig. 7 is a schematic view of the overall structure of a high-power gas burner of the second embodiment;

fig. 8 is a schematic view of the overall structure of a high-power gas burner in the third embodiment;

fig. 9 is a schematic sectional view of a high power gas burner in the third embodiment.

The purpose of the present invention, its function and principle will be further elucidated in the detailed description with reference to the accompanying drawings.

Detailed Description

The following further description is made with reference to the drawings and specific embodiments.

The first embodiment is as follows:

as shown in fig. 2 to 5, a high power gas burner 100 suitable for various gas sources is provided, and the high power gas burner 100 includes a burner body 10, a burner 20 disposed in the burner body, and a priming device 30 disposed at one side of the burner 20. Referring to fig. 5 and 6, the burner 20 is formed in a hollow cylindrical shape, and has a plurality of first combustion ports 21 formed therein and a plurality of second combustion ports 22 formed therein. A plurality of air inlets 23 are uniformly arranged at the bottom of the burner 20 from bottom to top, the air inlets 23 are communicated with the first burner port 21 and the second burner port 22, and combustible gas introduced from the lower part of the furnace body 10 is guided into the first burner port 21 and the second burner port 22 and is ignited and combusted by the ignition device 30. The combustible gas may be natural gas or a premixed gas of natural gas and air.

Since the burner 20 has the first and second burner ports 21 and 22, the combustible gas can generate a combustion area inside and outside the burner 20, respectively, thereby providing a large amount of power to the gas range and thus a larger power per unit area compared to the burner of the same size in the prior art.

Specifically, the lower portion of the furnace body 10 is provided with an air inlet 11 for connecting with a combustible gas source (such as a natural gas pipeline or a natural gas premixing device), a distributor 40 is arranged between the air inlet 11 and the burner 20, the distributor 40 is provided with a ring of annular pits 41, a plurality of air outlet holes 42 are arranged in the annular pits 41, and the air outlet holes 42 correspond to the air inlet holes 23. After the combustible gas from the combustible gas source is dispersed by the distributor 40, air flows with relatively uniform pressure are formed, and after the air flows enter the burner 20 from the plurality of air inlet holes 23, the air pressure is further stabilized, so that the burning flame is more stable.

In this embodiment, the burner 20 is supported on the distributor 40, and the bottom of the burner 20 just closes the annular recess 41, so that an air pressure buffer area (as shown in fig. 3) is formed in the annular recess 41, and the combustible gas enters the air pressure buffer area through the air outlet 42 and then enters the burner 20 through the air inlet 23. After the combustible gas comes out of the gas outlet 42, the combustible gas passes through the air pressure buffer zone and then enters the gas inlet 23, so that great air pressure change cannot be generated, and the flame burnt by the burner 20 is more stable.

To facilitate placement of the burner 20, the present embodiment provides a collar 43 on the distributor 40, the collar 43 having a diameter that is compatible with the inner or outer diameter of the burner 20, such that the burner 20 can be quickly positioned by the collar 43 without the need for repeated adjustment of the position of the burner 20 on the distributor 40.

Furthermore, the burner 20 has two circles of air inlets 23, one circle is a first air inlet 231 distributed inside, the other circle is a second air inlet 232 distributed outside, the first air inlet 231 is communicated with the plurality of annular notches 24 cut along the circumferential direction of the inner wall of the burner 20 to form a plurality of first combustion ports 21, and the second air inlet 232 is communicated with the plurality of annular notches 25 cut along the circumferential direction of the outer wall of the burner 20 to form a plurality of second combustion ports 22. The first combustion port 21 and the second combustion port 22 are porous independent structures, and can perform independent combustion, the air pressure of each combustion port is constant, and the combustion is uniform, so that the flame at each part is basically the same, and the fire pattern is good. In addition, a plurality of first combustion ports 21 are formed in the first air inlet 231 from bottom to top, and when the combustible gas flows in the first air inlet 231, the combustible gas is preheated by the combustion port with high temperature at the lower part through which the combustible gas passes before reaching the first combustion port 21 at the upper part, so that catalytic combustion is formed, the combustible gas can be combusted more fully, and higher thermal efficiency is achieved. Similarly, the second intake holes 232 are formed with a plurality of second combustion ports 22 from bottom to top, and when the combustible gas flows in the second intake holes 232, the combustible gas is preheated by the combustion port with high temperature passing through the lower part of the combustible gas before reaching the second combustion port 22 positioned above, so as to form catalytic combustion and achieve higher thermal efficiency. Therefore, the gas cooker using the burner 20 and the burner 100 of the present embodiment is more energy-saving and environment-friendly.

In addition, the first combustion port 21 and the second combustion port 22 of the burner 20 of the present embodiment are porous independent structures, so that there is no risk of backfire, and therefore, various gas sources such as liquefied petroleum gas, natural gas, hydrogen-rich natural gas and liquid hydrogen can be used as fuels, thereby providing technical conditions and product support for the gas cooker to meet the environmental protection requirements of carbon neutralization and carbon peaking.

In this embodiment, the burner 20 is an integral structure and is integrally made of a steel ingot, and the plurality of ring- shaped cutouts 24 and 25 are cut by a cutting process. Compared with a combined structure formed by overlapping, welding or riveting a plurality of layers of steel sheets, the combined structure has the advantages that the processing technology is simple, the cold and hot deformation amount is consistent, the product deformation and cracking caused by uneven cold and hot deformation can be avoided, and the service life of the combustor 20 is longer.

Referring to fig. 1 and fig. 2 again, the burner 100 of the present embodiment further includes a fire protection ring 50, the fire protection ring 50 is integrally formed with the burner body 10, an annular gap 60 is provided between the fire protection ring 50 and the burner 20, and the annular gap 60 can enable the gas at the second combustion port 22 to have a suitable air-fuel ratio, so as to provide an advantage for sufficient combustion of the fuel.

Furthermore, the pilot device 30 has a pilot opening 31, the pilot opening 31 communicating with the annular gap 60. Therefore, the ignition device 30 is closer to the second combustion port 22, the combustible gas ejected from the burner 20 can be ignited more easily, deflagration can not be generated, and the phenomenon of 'pot jumping' can be reduced or eliminated during cooking.

Example two:

referring to fig. 7, the present embodiment provides another high power gas burner 200 suitable for various gas sources, which has a structure substantially the same as that of the first embodiment, except that the upper portion of the ignition device 30 has a fire pressing cap 32, the ignition port 31 is located below the fire pressing cap 32, and the fire pressing cap 32 is used for pressing down the flame of the ignition device 30 so that the flame is guided to the annular gap 60 through the ignition port 31, so that the combustible gas in the annular gap 60 can be ignited more easily, and the phenomenon of 'pot jump' can be further reduced or eliminated.

Example three:

referring to fig. 8 and 9, the present embodiment provides another high power gas burner 300 suitable for various gas sources, which has a structure substantially the same as that of the first or second embodiment, except that the flame ring 50 is disposed between the burner body 10 and the burner 20, and the flame ring 50 with different thickness can be removed and replaced to adjust the width of the annular gap 60. Because different air sources have different requirements on air during combustion, the flame protection rings 50 with different thicknesses can be replaced according to different air sources, so that the air-fuel ratio of flame at the second combustion port 22 can be adjusted, the flame is more suitable for the fuel in the current air source, the effect of full combustion of the fuel is realized, and the power and the heat efficiency of the product are effectively improved.

To sum up, the utility model discloses inside and outside at the combustor are provided with a plurality of first burner ports and second burner port respectively for the gas-cooker can form a combustion area respectively in the inside and the outside of combustor, thereby has increased combustion area, compares the combustor of equal specification, and the power is bigger, and the heat efficiency is higher. In addition, the combustor adopts a porous independent structure, so that the risk of backfire can not occur, and various gas sources such as liquefied petroleum gas, natural gas, hydrogen-rich natural gas, liquid hydrogen and the like can be used as fuels, thereby meeting the environmental protection requirements of national carbon neutralization and carbon peak reaching.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims (10)

1. The utility model provides a high-power gas furnace end suitable for multiple air supply, includes the furnace body, sets up the combustor in the furnace body and sets up the ignition device in combustor one side, its characterized in that: the combustor is in a hollow cylindrical shape, a plurality of first combustion ports are formed in the combustor, and a plurality of second combustion ports are formed in the combustor; the bottom of the burner is uniformly provided with a plurality of air inlets from bottom to top, the air inlets are communicated with the first combustion port and the second combustion port, and combustible gas introduced from the lower part of the furnace body is guided into the first combustion port and the second combustion port and is ignited and combusted by the ignition device.

2. The multi-source high power gas burner of claim 1, wherein: the combustor is of an integrated structure, and a plurality of annular notches are respectively cut in the circumferential direction along the inner wall and the outer wall of the combustor.

3. The multi-source high power gas burner of claim 1, wherein: the lower part of furnace body is equipped with the air inlet that is used for being connected with combustible gas source be provided with a distributor between air inlet and the combustor, the distributor is provided with round annular pit be provided with a plurality of ventholes in the annular pit, the venthole with the inlet port is corresponding.

4. The multi-source high power gas burner of claim 3, wherein: the burner is supported above the distributor, and the bottom of the burner can just seal the annular pit, so that an air pressure buffer area is formed in the annular pit, and combustible gas enters the air pressure buffer area through the air outlet and then enters the burner through the air inlet.

5. The multi-gas source high power gas burner of claim 2, wherein: the air inlet is two rings, and including the first air inlet that the circle distributes in the inboard and the second air inlet that the circle distributes in the outside, first air inlet link up with a plurality of ring incision along the circumference of combustor inner wall surely, forms a plurality of first burner ports, the second air inlet link up with a plurality of ring incision along the circumference of combustor outer wall surely, forms a plurality of second burner ports.

6. The multi-gas source high power gas burner of claim 1, wherein: still include and protect the fire circle, protect to have an annular clearance between fire circle and the combustor.

7. The multi-source high power gas burner of claim 6, wherein: the fire protection ring is arranged between the furnace body and the burner or is integrally formed with the furnace body.

8. The multi-source high power gas burner of claim 7, wherein: the ignition device is provided with an ignition port which is communicated with the annular gap.

9. The multi-gas source high power gas burner of claim 8, wherein: the upper part of the ignition device is provided with a fire pressing cap, and the ignition port is positioned below the fire pressing cap and is suitable for guiding the flame of the ignition device to the annular gap so as to ignite the combustible gas in the annular gap.

10. A high-power combustor suitable for multiple air supplies characterized in that: the combustor is in a hollow cylindrical shape, a plurality of first combustion ports are formed in the combustor, and a plurality of second combustion ports are formed in the combustor; the bottom of the burner is uniformly provided with a plurality of air inlets from bottom to top, the air inlets are communicated with the first burning port and the second burning port to guide combustible gas into the first burning port and the second burning port.

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