High-power gas burner head suitable for various gas sources

Abstract

The present application relates to a kind of high-power gas furnace head suitable for multiple gas sources, the furnace head includes furnace body, burner arranged in furnace body and ignition device arranged at one side of burner, the inside of the burner is provided with a plurality of first combustion port, outside is provided with a plurality of second combustion port;The bottom of the burner is uniformly provided with a plurality of air inlet holes from bottom to top, the air inlet hole is communicated with the first combustion port and second combustion port, the combustible gas from the lower part of the furnace body is introduced into the first combustion port and second combustion port, and is ignited by the ignition device and burns.This application can not only significantly improve the thermal efficiency and power of gas stove, but also has simple structure, low cost, and can be suitable for multiple gas sources.

Description

Technical Field

[0001] This invention relates to the field of gas equipment technology, and in particular to a high-power gas burner head suitable for multiple gas sources. Background Technology

[0002] There are currently two main types of commercial gas stoves: one is directly connected to combustible gas for combustion, and the other is premixed with air to form a premixed gas, which is then introduced into the premixed gas stove for combustion. The former is mainly used in homes; the latter is mainly used in canteens, restaurants, hotels, and food processing plants. Its characteristics are high power, fast heating, and convenient adjustment of flame size.

[0003] Among the commonly used premixed gas stoves, one type has a structure such as... Figure 1 As shown, a burner 2 is placed inside the burner head 1. The inner wall of the burner 2 has several jet nozzles 3. Premixed gas is ejected from these nozzles 3 and combusted to form a flame. The flames from the various jet nozzles 3 within the burner 2 converge to generate a large amount of heat, which can be used for cooking. Currently, for this type of gas stove, increasing the stove's power can only be achieved by increasing the size of the burner 2. However, increasing the size of the burner 2 inevitably leads to an increase in the overall size of the gas stove. Since the space for increasing the size of the gas stove is limited, the flame size and power increase of the burner 2 will also be restricted. Moreover, increasing the size of a high-power stove brings many disadvantages, such as reducing kitchen space, increasing stove costs, and reducing stove thermal efficiency, etc. Summary of the Invention

[0004] Therefore, it is necessary to provide a high-power gas burner head that is suitable for multiple gas sources. This not only significantly improves the thermal efficiency and power of gas stoves, but also has a simple structure, low cost, and is applicable to multiple gas sources.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solution.

[0006] The application provides a high-power gas stove head suitable for various gas sources, which comprises a stove body, a burner arranged in the stove body, and an ignition device arranged on one side of the burner, the burner is in a hollow cylindrical shape, a plurality of first combustion openings are arranged in the burner, and a plurality of second combustion openings are arranged on the outer part of the burner; a plurality of air inlets are uniformly arranged on the bottom of the burner from bottom to top, the air inlets are communicated with the first combustion openings and the second combustion openings, combustible gas introduced from the lower part of the stove body is introduced into the first combustion openings and the second combustion openings, and the combustible gas is ignited by the ignition device; the high-power gas stove head further comprises a fire guard, the fire guard and the burner have an annular gap, the fire guard is arranged between the stove body and the burner, and the fire guard with different thicknesses can be detachably arranged and replaced to adjust the width of the annular gap; the burner is in an integrated structure, a plurality of annular notches are circumferentially cut on the inner wall and the outer wall of the burner; the air inlets are in two circles, the first air inlets are arranged on the inner side, and the second air inlets are arranged on the outer side, the first air inlets are communicated with the annular notches circumferentially cut on the inner wall of the burner to form the first combustion openings, and the second air inlets are communicated with the annular notches circumferentially cut on the outer wall of the burner to form the second combustion openings.

[0007] Preferably, the lower part of the stove body is provided with an air inlet for connecting with a combustible gas source, and a gas distributor is arranged between the air inlet and the burner, the gas distributor is provided with an annular recess, a plurality of air outlets are arranged in the annular recess, and the air outlets correspond to the air inlets.

[0008] Preferably, the burner is supported above the gas distributor, and the bottom of the burner can just close the annular recess to form an air pressure buffer zone in the annular recess, combustible gas enters the air pressure buffer zone through the air outlets and then enters the burner through the air inlets.

[0009] Preferably, the high-power gas stove head further comprises a fire guard, and the fire guard and the burner have an annular gap.

[0010] Preferably, the ignition device has an ignition opening, and the ignition opening is communicated with the annular gap.

[0011] Preferably, the upper part of the ignition device is provided with a fire cap, and the ignition opening is located below the fire cap and is adapted to guide the flame of the ignition device to the annular gap to ignite the combustible gas in the annular gap.

[0012] The first and second combustion openings are arranged in the inner and outer parts of the burner respectively, so that the gas stove can form a combustion zone in the inner and outer parts of the burner respectively, thereby increasing the combustion area, and the power is larger and the thermal efficiency is higher compared with the same specification burner. Since the gas stove containing the burner has fewer parts and simple structure, the production cost of the product is lower, which is beneficial to reduce the purchase cost of the merchant and improve the profit of the merchant. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a sectional view of a premix gas stove in the prior art;

[0014] Figure 2 is a sectional view of a high-power gas stove in embodiment one;

[0015] Figure 3 is a sectional view of a high-power gas stove in embodiment one;

[0016] Figure 4 、 5 is an exploded view of a high-power gas stove in embodiment one;

[0017] Figure 6 is a sectional view of a high-power gas stove in embodiment one;

[0018] Figure 7 is a sectional view of a high-power gas stove in embodiment one;

[0019] Figure 8 is a sectional view of a high-power gas stove in embodiment one;

[0020] Figure 9 is a sectional view of a high-power gas stove in embodiment one.

[0021] The realization of the object of the present application and its functions and principles will be further described in the specific embodiments in combination with the drawings. DETAILED DESCRIPTION

[0022] The present application will be further described in combination with the drawings and specific embodiments.

[0023] Embodiment one:

[0024] As shown in Figures 2~5 , a high-power gas stove 100 suitable for multiple gas sources is provided, which includes a stove body 10, a burner 20 arranged in the stove body, and an ignition device 30 arranged on one side of the burner 20. In combination with Figure 5 and Figure 6As shown, the burner 20 is a hollow cylinder with several first combustion ports 21 inside and several second combustion ports 22 outside. Several air inlets 23 are evenly distributed from bottom to top at the bottom of the burner 20. These air inlets 23 communicate with the first and second combustion ports 21 and 22, guiding combustible gas introduced from below the furnace body 10 into the first and second combustion ports 21 and 22, where it is ignited by the ignition device 30. The combustible gas can be natural gas or a premixed gas of natural gas and air.

[0025] Since the burner 20 has a first combustion port 21 and a second combustion port 22, the combustible gas can generate a combustion zone inside and outside the burner 20 respectively. Therefore, compared with burners of the same size in current technology, it can provide a significant increase in the power of the gas stove, resulting in a greater power per unit area.

[0026] Specifically, the lower part of the furnace body 10 is provided with an air inlet 11 for connecting to a combustible gas source (such as a natural gas pipeline or a natural gas premixing device). A flame distributor 40 is provided between the air inlet 11 and the burner 20. The flame distributor 40 is provided with an annular recess 41, and a plurality of air outlets 42 are provided in the annular recess 41, which correspond to the air inlet 23. After the combustible gas from the combustible gas source is dispersed by the flame distributor 40, it forms a relatively balanced airflow. After this airflow enters the burner 20 through the plurality of air inlets 23, the gas pressure is further stabilized, making the combustion flame more stable.

[0027] In this embodiment, the burner 20 is supported on the flame distributor 40, and the bottom of the burner 20 can just close the annular recess 41, so that a pressure buffer zone is formed inside the annular recess 41 (e.g., Figure 3 As shown in the diagram, combustible gas enters the pressure buffer zone through the outlet 42, and then enters the burner 20 through the inlet 23. Because the combustible gas passes through the pressure buffer zone and then enters the inlet 23 after exiting through the outlet 42, there is no significant pressure change, resulting in a more stable flame in the burner 20.

[0028] To facilitate the placement of the burner 20, this embodiment provides a flange 43 on the flame distributor 40. The diameter of the flange 43 is adapted to the inner or outer diameter of the burner 20, so that the burner 20 can be quickly positioned by the flange 43 without repeatedly adjusting the position of the burner 20 on the flame distributor 40.

[0029] Furthermore, the burner 20 has two rings of air inlets 23: one ring consisting of first air inlets 231 distributed on the inner side, and the other ring consisting of second air inlets 232 distributed on the outer side. The first air inlets 231 communicate with several annular cuts 24 cut circumferentially along the inner wall of the burner 20 to form several first combustion ports 21. The second air inlets 232 communicate with several annular cuts 25 cut circumferentially along the outer wall of the burner 20 to form several second combustion ports 22. The first combustion ports 21 and second combustion ports 22 are multi-hole independent structures, allowing for independent combustion. The gas pressure at each combustion port is constant, resulting in uniform combustion and a basically identical flame pattern throughout. Furthermore, the first air inlet 231 has several first combustion ports 21 formed from bottom to top. When the combustible gas flows through the first air inlet 231, it is preheated by the high-temperature combustion ports below it before reaching the upper combustion ports 21, thus forming catalytic combustion. This allows the combustible gas to burn more completely and achieve higher thermal efficiency. Similarly, the second air inlet 232 has several second combustion ports 22 formed from bottom to top. When the combustible gas flows through the second air inlet 232, it is preheated by the high-temperature combustion ports below it before reaching the upper combustion ports 22, thus forming catalytic combustion and achieving higher thermal efficiency. Therefore, the gas stove using the burner 20 and burner head 100 of this embodiment is more energy-efficient and environmentally friendly.

[0030] Furthermore, the first combustion port 21 and the second combustion port 22 of the burner 20 in this embodiment are multi-hole independent structures, so there is no risk of backfire. Therefore, it can use a variety of gas sources such as liquefied petroleum gas, natural gas, hydrogen-rich natural gas and liquid hydrogen as fuel, providing technical conditions and product support for gas stoves to meet environmental protection requirements.

[0031] In this embodiment, the burner 20 is a one-piece structure, made entirely from a single steel ingot. The aforementioned annular cuts 24 and 25 are cut out by machining. Compared to some composite structures made of multiple layers of steel sheets welded or riveted together, this method not only simplifies the manufacturing process but also ensures consistent thermal deformation, avoiding product deformation and cracking caused by uneven thermal deformation. Therefore, the burner 20 in this embodiment has a longer service life.

[0032] Please refer to again Figure 1 and Figure 2 As shown, the burner head 100 in this embodiment also includes a fire guard ring 50, which is integrally formed with the furnace body 10. There is an annular gap 60 between the fire guard ring 50 and the burner 20. The annular gap 60 can make the gas at the second combustion port 22 have a suitable air-fuel ratio, providing favorable conditions for the complete combustion of fuel.

[0033] In addition, the igniter 30 has an ignition port 31, which is in communication with the annular gap 60. Thus, the igniter 30 is closer to the second combustion port 22, and it is easier to ignite the combustible gas ejected from the burner 20, without causing deflagration, and the "jumping pot" phenomenon can be reduced or eliminated when cooking.

[0034] Embodiment Two

[0035] Referring to Figure 7 The upper part of the igniter 30 has a fire cap 32, and the ignition port 31 is located below the fire cap 32. The fire cap 32 is used to lower the flame of the igniter 30, so that it is directed to the annular gap 60 through the ignition port 31, and it is easier to ignite the combustible gas in the annular gap 60, further reducing or eliminating the "jumping pot" phenomenon.

[0036] Embodiment Three

[0037] Referring to Figure 8 and 9 The upper part of the igniter 30 has a fire cap 32, and the ignition port 31 is located below the fire cap 32. The fire cap 32 is used to lower the flame of the igniter 30, so that it is directed to the annular gap 60 through the ignition port 31, and it is easier to ignite the combustible gas in the annular gap 60, further reducing or eliminating the "jumping pot" phenomenon.

[0038] In summary, the present application sets a plurality of first and second combustion ports in the inside and outside of the burner, respectively, so that the gas stove can form a combustion zone in the inside and outside of the burner, respectively, thereby increasing the combustion area, and the power and thermal efficiency are higher than those of the same size burner. In addition, the burner adopts a porous independent structure, which does not have the risk of backfire, so that liquefied petroleum gas, natural gas, hydrogen-rich natural gas, and liquid hydrogen can be used as fuel.

[0039] The technical features of the above embodiments can be combined in any way. To make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0040] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are within the protection scope of the present application.

Claims

1. A high-power gas burner head suitable for various gas sources, comprising a burner body, a burner arranged in the burner body, and an ignition device arranged on one side of the burner, characterized in that: The burner is a hollow cylinder with several first combustion ports inside and several second combustion ports on the outside. Several air inlets are evenly distributed from bottom to top at the bottom of the burner, communicating with the first and second combustion ports. Combustible gas introduced from below the furnace body is guided into the first and second combustion ports and ignited by the ignition device. The burner also includes a flame guard ring with an annular gap between it and the burner. The flame guard ring is positioned between the furnace body and the burner and is detachable. The width of the annular gap can be adjusted by replacing the protective rings of different thicknesses. The burner is an integral structure with several annular cuts cut circumferentially along the inner and outer walls of the burner. The air inlet is in two rings, including a first air inlet ring distributed on the inner side and a second air inlet ring distributed on the outer side. The first air inlet ring communicates with the several annular cuts cut circumferentially along the inner wall of the burner to form several first combustion ports. The second air inlet ring communicates with the several annular cuts cut circumferentially along the outer wall of the burner to form several second combustion ports.

2. A high-power gas burner according to claim 1, characterized in that: The lower part of the furnace body is provided with an air inlet for connecting to a combustible gas source. A flame distributor is provided between the air inlet and the burner. The flame distributor is provided with a ring-shaped recess and a plurality of air outlets are provided in the ring-shaped recess, and the air outlets correspond to the air inlet.

3. A high-power gas burner according to claim 2, characterized in that: The burner is supported above the flame distributor, and the bottom of the burner can just close the annular recess, so that a pressure buffer zone is formed in the annular recess. The combustible gas enters the pressure buffer zone through the gas outlet and then enters the burner through the gas inlet.

4. A high-power gas burner according to claim 3, characterized in that: The ignition device has an ignition port, which is connected to the annular gap.

5. A high-power gas burner according to claim 4, characterized in that: The upper part of the ignition device has a flame suppressor cap, and the ignition port is located below the flame suppressor cap and is adapted to guide the flame of the ignition device to the annular gap to ignite the combustible gas in the annular gap.

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