Combustor and gas oven

Abstract

The utility model discloses a burner and a gas oven. The burner comprises a fire tube structure, the fire tube structure comprises an outer fire tube and an inner fire tube arranged on the inner side of the outer fire tube, outer fire holes are formed in the outer fire tube, and inner fire holes are formed in the inner fire tube; the gas pipeline structure comprises an inner pipeline and an outer pipeline, the outer pipeline is connected with the outer fire pipe, and the inner pipeline is connected with the inner fire pipe. According to the combustor, the inner fire pipe and the outer fire pipe which are independent of each other are arranged, the inner pipeline and the outer pipeline which are independent of each other are arranged, the inner pipeline provides gas for the inner fire pipe independently, the outer pipeline provides gas for the outer fire pipe independently, and therefore the combustion fire power of the inner fire pipe and the combustion fire power of the outer fire pipe can be adjusted independently; and compared with a single fire tube in the prior art, the fire adjusting range is larger, and the fire adjusting requirement of a user can be well met.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a burner and a gas oven. Background Technology

[0002] Existing gas oven burners typically have only one burner tube. A single burner tube provides relatively low heat output, making it impossible to provide high heat output or adjust to lower heat output. Furthermore, the heating is uneven, which fails to meet user needs.

[0003] Therefore, there is an urgent need for a burner to solve the above problems. Utility Model Content

[0004] This invention aims to at least partially solve one of the problems existing in the prior art. To this end, this invention proposes a burner that sets up independent inner and outer burners, as well as independent inner and outer pipes. The inner pipe supplies gas to the inner burner separately, and the outer pipe supplies gas to the outer burner separately. This allows the combustion power of the inner and outer burners to be adjusted independently. Compared with the single burner in the prior art, the range of power adjustment is larger, which can better meet the user's needs for power adjustment.

[0005] The above objectives are achieved through the following technical solutions:

[0006] A burner, comprising:

[0007] The fire tube structure includes an outer fire tube and an inner fire tube disposed inside the outer fire tube. The outer fire tube has an outer fire hole, and the inner fire tube has an inner fire hole.

[0008] A gas pipeline structure includes an inner pipeline and an outer pipeline, wherein the outer pipeline is connected to the outer fire pipe and the inner pipeline is connected to the inner fire pipe.

[0009] Optionally, the outer fire tube and / or the inner fire tube are arranged in a U-shape.

[0010] Optionally, the outer fire tube includes a first outer tube segment, a second outer tube segment, and a third outer tube segment connected in sequence, the first outer tube segment and the third outer tube segment being spaced apart and arranged opposite to each other, one end of the second outer tube segment being connected to one end of the first outer tube segment, and the other end of the second outer tube segment being connected to one end of the third outer tube segment. The inner fire tube includes a first inner tube segment, a second inner tube segment, and a third inner tube segment connected in sequence, the first inner tube segment and the third inner tube segment being spaced apart and arranged opposite to each other, one end of the second inner tube segment being connected to one end of the first inner tube segment, and the other end of the second inner tube segment being connected to one end of the third inner tube segment.

[0011] Optionally, the outer fire tube further includes an outer tube bend section, and the second outer tube section is connected to the first outer tube section and the second outer tube section is connected to the third outer tube section through the outer tube bend section. The inner fire tube further includes an inner tube bend section, and the second inner tube section is connected to the first inner tube section and the second inner tube section is connected to the third inner tube section through the inner tube bend section.

[0012] Optionally, the first outer pipe segment, the first inner pipe segment, the third outer pipe segment, and the third inner pipe segment all extend in the front-back direction and are arranged parallel to each other. The first outer pipe segment and the first inner pipe segment, as well as the third outer pipe segment and the third inner pipe segment, are spaced apart. One end of the second inner pipe segment is connected to the front end of the first inner pipe segment, and the other end of the second inner pipe segment is connected to the front end of the third inner pipe segment. One end of the second outer pipe segment is connected to the front end of the first outer pipe segment, and the other end of the second outer pipe segment is connected to the front end of the third outer pipe segment. The second inner pipe segment and the second outer pipe segment are spaced apart and arranged parallel to each other.

[0013] Optionally, the gas pipeline structure is located on the rear side of the fire tube structure, the front end of the inner pipe is connected to the rear end of the first inner pipe section, and the front end of the outer pipe is connected to the rear end of the first outer pipe section.

[0014] Optionally, the outer flame hole is opened on the outer side of the upper part of the outer flame tube and is inclined inward from top to bottom; and / or the inner flame hole is opened on the outer side of the upper part of the inner flame tube and is inclined inward from top to bottom.

[0015] Optionally, the outer fire tube and the outer pipe are integrally formed; and / or the inner fire tube and the inner pipe are integrally formed.

[0016] Optionally, it also includes an ignition needle, wherein an ignition hole is provided at one end of the inner pipe near the inner fire tube or at one end of the outer pipe near the outer fire tube, and the ignition needle is installed on the upper side of the gas pipeline structure and aligned with the ignition hole.

[0017] Another aspect of this utility model provides a gas oven, including a cooking liner and the aforementioned burner. The cooking liner is provided with a cooking cavity and a combustion cavity located below the cooking cavity. The burner is disposed in the combustion cavity. A ventilation hole communicating with the combustion cavity is provided on the front side of the cooking liner.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] The burner provided by this utility model includes a fire tube structure and a gas pipeline structure. The fire tube structure includes an outer fire tube and an inner fire tube disposed inside the outer fire tube. The outer fire tube has an outer fire hole, and the inner fire tube has an inner fire hole. The gas pipeline structure includes an inner pipeline and an outer pipeline. The outer pipeline connects to the outer fire tube, and the inner pipeline connects to the inner fire tube. By setting independent inner and outer fire tubes and independent inner and outer pipelines, with the inner pipeline supplying gas solely to the inner fire tube and the outer pipeline supplying gas solely to the outer fire tube, the combustion intensity of the inner and outer fire tubes can be individually adjusted. Compared to the single fire tube in the prior art, the range of intensity adjustment is wider, better meeting the user's needs for intensity adjustment. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the burner provided in a specific embodiment of the present utility model;

[0021] Figure 2 yes Figure 1 Top view;

[0022] Figure 3 This is a three-dimensional structural diagram of the burner installed in the cooking liner according to a specific embodiment of the present invention;

[0023] Figure 4 yes Figure 3 The main view;

[0024] Figure 5 yes Figure 4 Sectional view at point AA.

[0025] In the picture:

[0026] 1. Cooking inner pot; 100. Cooking cavity; 200. Combustion cavity; 120. Ventilation hole;

[0027] 2. Fire tube structure; 21. Outer fire tube; 211. First outer tube section; 212. Second outer tube section; 213. Third outer tube section; 214. Outer tube bend section; 22. Inner fire tube; 221. First inner tube section; 222. Second inner tube section; 223. Third inner tube section; 224. Inner tube bend section; 210. Outer fire port; 220. Inner fire port;

[0028] 3. Ignition needle;

[0029] 41. First support; 42. Second support;

[0030] 5. Gas pipeline structure; 51. External pipeline; 511. Third pipeline; 512. Fourth pipeline; 52. Internal pipeline; 521. First pipeline; 5210. Ignition hole; 522. Second pipeline. Detailed Implementation

[0031] The following embodiments illustrate the present invention, but the present invention is not limited to these embodiments. Modifications to the specific implementation of the present invention or equivalent substitutions for some technical features, without departing from the spirit of the present invention, should all be covered within the scope of the technical solution claimed by the present invention.

[0032] Please refer to Figures 1-5 This invention provides a burner, including a fire tube structure 2 and a gas pipeline structure 5. The fire tube structure 2 includes an outer fire tube 21 and an inner fire tube 22 disposed inside the outer fire tube 21. The outer fire tube 21 has an outer fire hole 210, and the inner fire tube 22 has an inner fire hole 220. The gas pipeline structure 5 includes an inner pipeline 52 and an outer pipeline 51. The outer pipeline 51 is connected to the outer fire tube 21, and the inner pipeline 52 is connected to the inner fire tube 22. By setting independent inner and outer fire tubes 22 and 51, and independent inner and outer pipelines 52 and 51 respectively, the inner pipeline 52 supplies gas solely to the inner fire tube 22, and the outer pipeline 51 supplies gas solely to the outer fire tube 21. This allows for independent adjustment of the combustion intensity of the inner and outer fire tubes 22 and 21, and compared to the single-fire tube technology in the prior art, the range of intensity adjustment is larger, better meeting the user's needs for intensity adjustment.

[0033] Optionally, the outer fire tube 21 and / or the inner fire tube 22 are arranged in a U-shape to facilitate the arrangement of the outer fire tube 21 and the inner fire tube 22 in the gas oven, which has the advantages of compact structure and more uniform fire distribution.

[0034] Optionally, the outer flame tube 21 includes a first outer tube segment 211, a second outer tube segment 212, and a third outer tube segment 213 connected in sequence. The first outer tube segment 211 and the third outer tube segment 213 are spaced apart and arranged opposite to each other. One end of the second outer tube segment 212 is connected to one end of the first outer tube segment 211, and the other end of the second outer tube segment 212 is connected to one end of the third outer tube segment 213, thereby making the outer flame tube 21 U-shaped. The inner flame tube 22 includes a first inner tube segment 221, a second inner tube segment 222, and a third inner tube segment 223 connected in sequence. The first inner tube segment 221 and the third inner tube segment 223 are spaced apart and arranged opposite to each other. One end of the second inner tube segment 222 is connected to one end of the first inner tube segment 221, and the other end of the second inner tube segment 222 is connected to one end of the third inner tube segment 223, thereby making the inner flame tube 22 U-shaped.

[0035] Optionally, the outer burner pipe 21 also includes an outer pipe bend section 214, through which the second outer pipe section 212 is connected to the first outer pipe section 211, and the second outer pipe section 212 is connected to the third outer pipe section 213, to facilitate the smooth flow of gas between the first outer pipe section 211 and the second outer pipe section 212, and between the second outer pipe section 212 and the third outer pipe section 213, thereby reducing the flow resistance of gas in the outer burner pipe 21. The inner burner pipe 22 also includes an inner pipe bend section 224, through which the second inner pipe section 222 is connected to the first inner pipe section 221, and the second inner pipe section 222 is connected to the third inner pipe section 223, to facilitate the smooth flow of gas between the first inner pipe section 221 and the second inner pipe section 222, and between the second inner pipe section 222 and the third inner pipe section 223, thereby reducing the flow resistance of gas in the inner burner pipe 22.

[0036] Optionally, the first outer pipe section 211, the first inner pipe section 221, the third outer pipe section 213, and the third inner pipe section 223 all extend in the front-back direction and are arranged parallel to each other. The first outer pipe section 211 and the first inner pipe section 221, and the third outer pipe section 213 and the third inner pipe section 223 are spaced apart. One end of the second inner pipe section 222 is connected to the front end of the first inner pipe section 221, and the other end of the second inner pipe section 222 is connected to the front end of the third inner pipe section 223. One end of the second outer pipe section 212 is connected to the front end of the first outer pipe section 211, and the other end of the second outer pipe section 212 is connected to the front end of the third outer pipe section 213. The second inner pipe section 222 and the second outer pipe section 212 are spaced apart and arranged parallel to each other, resulting in a simple and compact structure.

[0037] Optionally, the gas pipeline structure 5 is located on the rear side of the fire tube structure 2. The front end of the inner pipe 52 is connected to the rear end of the first inner pipe section 221, and the front end of the outer pipe 51 is connected to the rear end of the first outer pipe section 211. This allows the gas supply pipeline outside the gas oven to be connected to the fire tube structure 2 from the rear of the gas oven through the gas pipeline structure 5, thereby achieving gas supply. The structure is simple and the distribution is reasonable.

[0038] Optionally, the outer flame hole 210 is located on the outer side of the upper part of the outer flame tube 21 and is inclined inward from top to bottom, so that the flame of the outer ring fire generated by the outer flame tube 21 can extend outward from bottom to top, increasing the distribution range of the outer ring fire flame and thus improving the uniformity of combustion. And / or the inner flame hole 220 is located on the outer side of the upper part of the inner flame tube 22 and is inclined inward from top to bottom, so that the flame of the inner ring fire generated by the inner flame tube 22 can extend outward from bottom to top, increasing the distribution range of the inner ring fire flame and thus improving the uniformity of combustion.

[0039] Optionally, the outer burner tube 21 and the outer pipe 51 are integrally formed, which is simple in structure, easy to manufacture, and there is no gap between the outer burner tube 21 and the outer pipe 51, preventing gas from escaping through the gap. And / or the inner burner tube 22 and the inner pipe 52 are integrally formed, which is simple in structure, easy to manufacture, and there is no gap between the inner burner tube 22 and the inner pipe 52, preventing gas from escaping through the gap.

[0040] Optionally, the inner pipe 52 includes a first pipe 521 and a second pipe 522 connected to each other. The first pipe 521 is located in front of the second pipe 522 and is connected to the rear end of the first inner pipe section 221. The second pipe 522 extends in the front-to-back direction and is connected to the gas supply pipe outside the gas oven. The first pipe 521 extends from front to back towards the middle of the inner fire pipe 22 so that the inner pipe 52 can be arranged in the middle of the gas oven.

[0041] Optionally, the outer pipe 51 includes a third pipe 511 and a fourth pipe 512 connected to each other. The third pipe 511 is located in front of the fourth pipe 512 and is connected to the rear end of the first outer pipe section 211. The fourth pipe 512 extends in the front-to-back direction and is connected to the gas supply pipe outside the gas oven. The third pipe 511 extends from front to back towards the middle of the outer fire pipe 21 so that the outer pipe 51 can be arranged in the middle of the gas oven.

[0042] Optionally, the first pipe 521 and the third pipe 511 are arranged in parallel, and the second pipe 522 and the fourth pipe 512 are arranged in parallel, resulting in a simple and compact structure.

[0043] Optionally, it also includes an ignition needle 3. An ignition hole 5210 is provided at one end of the inner pipe 52 near the inner fire tube 22 or at one end of the outer pipe 51 near the outer fire tube 21. The ignition needle 3 is installed on the upper side of the gas pipe structure 5 and aligned with the ignition hole 5210 to facilitate the distribution of the ignition needle 3 in the gas oven.

[0044] Optionally, it also includes a support structure, with the fire tube structure 2 and the gas pipeline structure 5 installed in the gas oven via the support structure.

[0045] Optionally, the support structure includes a first bracket 41 and a second bracket 42, with the second bracket 42 installed on the lower side of the outer fire tube 21 and the inner fire tube 22, and the first bracket 41 installed on the lower side of the inner pipe 52 and the outer pipe 51.

[0046] Another aspect of this utility model provides a gas oven, including a cooking liner and the aforementioned burner. The cooking liner is provided with a cooking cavity and a combustion cavity located below the cooking cavity. The burner is disposed in the combustion cavity. A ventilation hole 120 communicating with the combustion cavity 200 is provided on the front side of the cooking liner 1 so that air can enter the combustion cavity 200.

[0047] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A burner, characterized in that, include: The fire tube structure (2) includes an outer fire tube (21) and an inner fire tube (22) disposed inside the outer fire tube (21). The outer fire tube (21) has an outer fire hole (210), and the inner fire tube (22) has an inner fire hole (220). The gas pipeline structure (5) includes an inner pipeline (52) and an outer pipeline (51), wherein the outer pipeline (51) is connected to the outer fire pipe (21) and the inner pipeline (52) is connected to the inner fire pipe (22).

2. The burner according to claim 1, characterized in that, The outer fire tube (21) and / or the inner fire tube (22) are arranged in a U-shape.

3. The burner according to claim 2, characterized in that, The outer fire tube (21) includes a first outer tube section (211), a second outer tube section (212), and a third outer tube section (213) connected in sequence. The first outer tube section (211) and the third outer tube section (213) are spaced apart and arranged opposite to each other. One end of the second outer tube section (212) is connected to one end of the first outer tube section (211), and the other end of the second outer tube section (212) is connected to one end of the third outer tube section (213). The inner fire tube (22) includes a first inner tube section (221), a second inner tube section (222), and a third inner tube section (223) connected in sequence. The first inner tube section (221) and the third inner tube section (223) are spaced apart and arranged opposite to each other. One end of the second inner tube section (222) is connected to one end of the first inner tube section (221), and the other end of the second inner tube section (222) is connected to one end of the third inner tube section (223).

4. The burner according to claim 3, characterized in that, The outer fire tube (21) further includes an outer tube bend section (214), through which the second outer tube section (212) is connected to the first outer tube section (211) and the second outer tube section (212) is connected to the third outer tube section (213). The inner fire tube (22) further includes an inner tube bend section (224), through which the second inner tube section (222) is connected to the first inner tube section (221) and the second inner tube section (222) is connected to the third inner tube section (223).

5. The burner according to claim 4, characterized in that, The first outer pipe section (211), the first inner pipe section (221), the third outer pipe section (213), and the third inner pipe section (223) all extend in the front-back direction and are arranged parallel to each other. The first outer pipe section (211) and the first inner pipe section (221), and the third outer pipe section (213) and the third inner pipe section (223) are spaced apart. One end of the second inner pipe section (222) is connected to the front end of the first inner pipe section (221), and the other end of the second inner pipe section (222) is connected to the front end of the third inner pipe section (223). One end of the second outer pipe section (212) is connected to the front end of the first outer pipe section (211), and the other end of the second outer pipe section (212) is connected to the front end of the third outer pipe section (213). The second inner pipe section (222) and the second outer pipe section (212) are spaced apart and arranged parallel to each other.

6. The burner according to claim 5, characterized in that, The gas pipeline structure (5) is located on the rear side of the fire pipe structure (2). The front end of the inner pipe (52) is connected to the rear end of the first inner pipe section (221), and the front end of the outer pipe (51) is connected to the rear end of the first outer pipe section (211).

7. The burner according to claim 1, characterized in that, The outer flame hole (210) is opened on the outer side of the upper part of the outer flame tube (21) and is inclined inward from top to bottom; and / or the inner flame hole (220) is opened on the outer side of the upper part of the inner flame tube (22) and is inclined inward from top to bottom.

8. The burner according to claim 1, characterized in that, The outer fire tube (21) is integrally formed with the outer pipe (51); and / or the inner fire tube (22) is integrally formed with the inner pipe (52).

9. The burner according to any one of claims 1-8, characterized in that, It also includes an ignition needle (3), and an ignition hole (5210) is provided at one end of the inner pipe (52) near the inner fire tube (22) or at one end of the outer pipe (51) near the outer fire tube (21). The ignition needle (3) is installed on the upper side of the gas pipeline structure (5) and aligned with the ignition hole (5210).

10. A gas-fired oven, characterized in that, The cooking inner pot (1) includes a cooking inner pot (1) and a burner as described in any one of claims 1-9. The cooking inner pot (1) is provided with a cooking cavity (100) and a combustion cavity (200) located below the cooking cavity (100). The burner is disposed in the combustion cavity (200). A ventilation hole (120) communicating with the combustion cavity (200) is provided on the front side of the cooking inner pot (1).

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