Combustor assembly and gas stove

Abstract

The utility model relates to the technical field of gas stoves, and particularly discloses a burner assembly and a gas stove.According to the burner assembly, an air compensation opening is formed between an air door fixing plate and a first injection pipe and / or between the air door fixing plate and a second injection pipe, and the air compensation opening is communicated with the first injection pipe and / or the second injection pipe; the air compensation opening is located in the bottom of the air inlet end of the first injection pipe and / or the bottom of the air inlet end of the second injection pipe, the lower limit of primary air supply in the injection pipes can be increased, the air supply amount is increased, and therefore the gas and air mixing effect is good, and sufficient combustion of gas is achieved; in addition, the air compensation opening is located at the bottom of the air inlet end of the injection pipe and located on the side deviating from the glass panel, so that flames cannot fly to the upper portion when accidental tempering occurs, the glass panel is prevented from being heated and exploded, meanwhile, dirt is prevented from entering the injection pipe from the air compensation opening, and potential safety hazards are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gas stove, especially to the burner assembly and the gas stove with the burner assembly. BACKGROUND

[0002] The burner assembly is one of the core components of the stove, and the main function of the burner assembly is to ignite the mixture of gas and air to generate stable flame for heating. The existing burner assembly usually includes two ejector pipes, and the gas and air are mixed in the ejector pipes. One of the two ejector pipes is used to supply gas to the center fire, and the other ejector pipe is used to supply gas to the outer ring fire. The two ejector pipes are connected at the air inlet end, and a damper fixing plate is connected at the air inlet end. Two gas inlet holes and a plurality of primary air supply holes are arranged on the damper fixing plate. The two gas inlet holes correspond to and communicate with the two ejector pipes. Part of the primary air supply holes correspond to and communicate with one of the ejector pipes, and the remaining primary air supply holes correspond to and communicate with the other ejector pipe. However, the air inlet of the above structure completely relies on the primary air supply holes on the damper fixing plate, and the amount of air entering is limited, which can easily lead to poor mixing effect of gas and air and insufficient combustion.

[0003] To solve the above problems, the Chinese patent CN211739069U provides an ejector pipe and a burner head with enhanced ejector capacity, wherein an ejector side hole is arranged on the mixing pipe section of the ejector pipe to change the jet capacity of the ejector pipe and increase the amount of primary air drawn by the ejector pipe, thereby improving the thermal efficiency of the stove. However, the ejector side hole in the above-mentioned Chinese patent is arranged on the upper surface of the mixing pipe section of the ejector pipe, and its position is towards the glass panel of the gas stove. When backfire occurs accidentally, the flame is easy to flow out from the ejector side hole and cause the glass panel to burst due to heat. At the same time, dirt is also easy to enter the inside of the ejector pipe from the ejector side hole, which causes safety hazards to users during use. SUMMARY

[0004] The utility model aims at solving the technical problems existing in the prior art, and provides a burner assembly which can avoid causing the glass panel of the gas stove to burst due to heat and avoid dirt entering the inside of the ejector pipe, and a gas stove with the burner assembly.

[0005] To solve the above technical problems, the utility model provides the following technical scheme:

[0006] The utility model discloses a burner assembly, including the first ejector pipe for providing outer ring fire mixed gas and the second ejector pipe for providing center fire mixed gas, the first eject pipe and second ejector pipe interval arrangement, and the air inlet end of first eject pipe and the air inlet end of second ejector pipe are connected, and set up damper fixed plate at the connecting place, set up two gas access holes on the damper fixed plate, two gas access holes correspond with first ejector pipe and second ejector pipe and communicate, still set up a plurality of primary air supply holes on the damper fixed plate, and part primary air supply hole corresponds with first ejector pipe and communicates, and the remaining primary air supply hole corresponds with second ejector pipe and communicates, set up air compensation mouth between the damper fixed plate and first ejector pipe and / or between the damper fixed plate and second ejector pipe, the air compensation mouth with first ejector pipe and / or second ejector pipe communicate, and the air compensation mouth is located the bottom of air inlet end of first ejector pipe and / or is located the bottom of air inlet end of second ejector pipe.

[0007] The utility model discloses a burner assembly, through setting up air compensation mouth between the damper fixed plate and first ejector pipe and / or between the damper fixed plate and second ejector pipe, air compensation mouth with first ejector pipe and / or second ejector pipe communicate, and the air compensation mouth is located the bottom of air inlet end of first ejector pipe and / or is located the bottom of air inlet end of second ejector pipe, not only can increase the lower limit of primary air supply in first ejector pipe and / or second ejector pipe, improve air supply amount, thereby with air mixed effectual gas, realize the full combustion of gas, still due to air compensation mouth is located the bottom of air inlet end of first ejector pipe and / or is located the bottom of air inlet end of second ejector pipe, is located the side of deviating from glass panel, thus when appearing accidental backfire, flame will not float to the upper, also avoided causing glass panel thermal burst, also prevented dirt from air compensation mouth into first ejector pipe and / or second ejector pipe, avoided the security risk.

[0008] Further, the air compensation mouth is formed by the damper fixed plate and the notch at the air inlet end of the first ejector pipe and / or the second ejector pipe.

[0009] Further, the damper fixed plate is connected in the inner hole of the ring-shaped mounting bracket by riveting; and the non-air inlet end of the first ejector pipe and the non-air inlet end of the second ejector pipe are respectively connected with the port blocking cover by riveting.

[0010] Further, the first ejector pipe comprises an inlet section, a straight pipe mixing section and a diffusion section connected in sequence, the inlet section has an inlet and an outlet, the diameter of the inlet of the inlet section is larger than the diameter of the outlet of the inlet section, the diameter of the inlet section gradually decreases from the inlet to the outlet of the inlet section, and the outlet of the inlet section is communicated with the inlet of the straight pipe mixing section; the diameter of the diffusion section gradually increases from the inlet of the diffusion section, and the inlet of the diffusion section is communicated with the outlet of the straight pipe mixing section; the structure of the first ejector pipe is the same as that of the second ejector pipe.

[0011] Further, a first connecting piece connecting the first ejector pipe and the second ejector pipe is arranged between the first ejector pipe and the second ejector pipe.

[0012] Further, a second connecting piece connecting the first ejector pipe and the second ejector pipe is further arranged between the first ejector pipe and the second ejector pipe, and the second connecting piece is in the shape of a concave.

[0013] Further, an outer ring fire gas outlet pipe for communicating the first ejector pipe with an outer ring fire cover is arranged on the first ejector pipe, and a center fire gas outlet pipe for communicating the second ejector pipe with a center fire cover is arranged on the second ejector pipe; the outer ring fire gas outlet pipe is connected with the center fire gas outlet pipe.

[0014] Further, the outer ring fire gas outlet pipe and the center fire gas outlet pipe are arranged in a staggered manner.

[0015] A gas stove comprises a glass panel, a center fire cover and an outer ring fire cover arranged on the glass panel, the outer ring fire cover is sleeved on the periphery of the center fire cover, and further comprises the above-mentioned burner assembly, the first ejector pipe in the burner assembly is used for supplying gas to the outer ring fire cover, and the second ejector pipe is used for supplying gas to the center fire cover. The gas stove has all the beneficial technical effects brought by the above-mentioned burner assembly, and details are not described herein. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings. In the drawings, like reference numerals refer to like elements throughout. The embodiments of the present application, illustrated in the drawings, are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the present application.

[0017] Fig. 1 and Fig. 2 It is a different direction structure schematic view of the burner assembly of the present application.

[0018] Fig. 3 It is a sectional view of the burner assembly.

[0019] Fig. 4 It is a bottom view of the burner assembly. DETAILED DESCRIPTION

[0020] For the convenience of understanding the present application, the present application will be described more fully with reference to the accompanying drawings, where:

[0021] It should be noted that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or can be connected through intervening elements. As used herein the terms "mounted", "one end", "the other end" and the like are used for the purpose of illustration only and are not intended to limit the present application.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the present application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0023] The present application specifically provides an embodiment of a burner assembly, referring to Figs. 1-4The application relates to a gas stove, which comprises a first ejector pipe 1 for providing outer ring fire mixed gas and a second ejector pipe 2 for providing central fire mixed gas, the first ejector pipe 1 and the second ejector pipe 2 are arranged at intervals, the air inlet end of the first ejector pipe 1 and the air inlet end of the second ejector pipe 2 are connected, the so-called air inlet end is the end into which air and gas enter, and a damper fixing plate 3 is arranged at the connecting position and is perpendicular to the axial direction of the first ejector pipe 1 or the axial direction of the second ejector pipe 2; two gas inlet holes 4 are arranged on the damper fixing plate 3, the two gas inlet holes 4 correspond to and communicate with the first ejector pipe 1 and the second ejector pipe 2 respectively, and a plurality of primary air supply holes 5 are arranged on the damper fixing plate 3, part of the primary air supply holes 5 correspond to and communicate with the first ejector pipe 1, and the remaining primary air supply holes 5 correspond to and communicate with the second ejector pipe 2, specifically, the primary air supply holes 5 are four, two of the primary air supply holes 5 correspond to and communicate with the inlet of the first ejector pipe 1, the two primary air supply holes 5 are located on the two sides of the gas inlet hole 4 which communicates with the inlet of the first ejector pipe 1, and the other two primary air supply holes 5 correspond to and communicate with the inlet of the second ejector pipe 2, the two primary air supply holes 5 are located on the two sides of the gas inlet hole 4 which communicates with the inlet of the second ejector pipe 2; air compensation openings 6 are arranged between the damper fixing plate 3 and the first ejector pipe 1 and / or between the damper fixing plate 3 and the second ejector pipe 2, it can be understood that the air compensation openings 6 can be arranged only between the damper fixing plate 3 and the first ejector pipe 1, only between the damper fixing plate 3 and the second ejector pipe 2, or both, which can be set according to actual conditions; when the air compensation openings 6 are arranged between the damper fixing plate 3 and the first ejector pipe 1, the air compensation openings 6 also communicate with the first ejector pipe 1, and the air compensation openings 6 are located at the bottom of the air inlet end of the first ejector pipe 1, when the air compensation openings 6 are arranged between the damper fixing plate 3 and the second ejector pipe 2, the air compensation openings 6 also communicate with the second ejector pipe 1, and the air compensation openings 6 are located at the bottom of the air inlet end of the second ejector pipe 2, the so-called bottom of the air inlet end refers to the side away from the glass panel of the gas stove, so as to avoid that the flame flowing out of the air compensation openings 6 directly contacts the glass panel and causes the glass panel to be heated and burst due to accidental backfire.Specifically, the annular mounting frame 7 is arranged at the air inlet end and at the connection between the first ejector pipe 1 and the second ejector pipe 2, the damper fixing plate 3 is arranged in the inner hole of the annular mounting frame 7, when the air compensation port 6 is arranged between the damper fixing plate 3 and the first ejector pipe 1, a notch is arranged at the first ejector pipe 1 and on the annular mounting frame 7, the notch and the damper fixing plate 3 form the air compensation port 6 between the damper fixing plate 3 and the first ejector pipe 1, when the air compensation port 6 is arranged between the damper fixing plate 3 and the second ejector pipe 2, a notch is arranged at the second ejector pipe 2 and on the annular mounting frame 7, the notch and the damper fixing plate 3 form the air compensation port 6 between the damper fixing plate 3 and the second ejector pipe 2.

[0024] The burner assembly in the embodiment can not only increase the lower limit of the primary air supply, improve the air supply amount, so that the gas and air mixing effect is good, and the gas is fully combusted, but also increase the lower limit of the primary air supply, because the gas stove adopts atmospheric combustion, the air inlet of the combustion assembly is a primary air inlet for air injection and oxygen compensation of the gas, the amount of primary air intake determines the amount of air pre-mixed by the gas, which is beneficial to the uniform mixing of gas and air, so that the air compensation port 6 is arranged, that is, the primary air supply amount is increased relative to the primary air supply hole 5, which is beneficial to the uniform mixing and full combustion of air and gas; in addition, the air compensation port 6 is located at the bottom of the air inlet end of the first ejector pipe 1 and / or at the bottom of the air inlet end of the second ejector pipe 2, which is located on the side away from the glass panel, so that when the flame is accidentally backfired, the flame will not float upwards, thereby avoiding the glass panel from being heated and cracked, and preventing dirt from entering the first ejector pipe 1 and / or the second ejector pipe 2 through the air compensation port 6, thereby avoiding safety hazards.

[0025] In a preferred embodiment, the damper fixing plate 3 is riveted to the inner hole of the annular mounting bracket 7; the non-inlet ports of the first ejector tube 1 and the second ejector tube 2 are respectively riveted to plugs 8 that seal the ports. Firstly, both the first ejector tube 1 and the second ejector tube 2 have inlet and non-inlet ports. The inlet port communicates with the gas inlet hole 4 and the primary air supply hole 5 on the damper fixing plate 3, while the non-inlet port needs to be blocked by the plug 8. The process of riveting the damper fixing plate 3 to the annular mounting bracket 7 and riveting the plug 8 to the non-inlet port of the ejector tube are performed simultaneously. By using a clamp to fix the first ejector tube 1 and the second ejector tube 2, the damper fixing plate 3 and the plug 8 can be riveted together in one go, resulting in high processing efficiency. In addition, due to the riveting connection method, better sealing performance can be achieved, ensuring safety and stability.

[0026] In the preferred embodiment, see Figs. 1-4 The first ejector tube 1 includes an inlet section 9, a straight-pipe mixing section 10, and a diffuser section 11 connected in sequence. The inlet section 9 has an inlet and an outlet, and the inlet diameter of the inlet section 9 is larger than the outlet diameter of the inlet section 9. From the inlet to the outlet of the inlet section 9, the diameter of the inlet section 9 gradually decreases. The outlet of the inlet section 9 is connected to the inlet of the straight-pipe mixing section 10. The diameter of the diffuser section 11 gradually increases from the inlet of the diffuser section 11, and the inlet of the diffuser section 11 is connected to the outlet of the straight-pipe mixing section 10. The structure of the first ejector tube 1 is the same as that of the second ejector tube 2. By adding a straight-pipe mixing section 10 to the first ejector tube 1 and the second ejector tube 2, and placing the straight-pipe mixing section 10 between the outlet of the inlet section 9 and the inlet of the diffuser section 11, the diameter of the straight-pipe mixing section 10 is made to match the diameter at the outlet of the inlet section 9 and the diameter at the inlet of the diffuser section 11. This further makes the gas and air mix more uniform, resulting in more complete combustion of the final gas mixture and higher combustion efficiency.

[0027] In this embodiment, see Figs. 1-4 A first connector 12 is provided between the first ejector tube 1 and the second ejector tube 2 to connect them. This first connector 12 facilitates the flow of molten aluminum during the integral casting of the first and second ejector tubes 1 and 2, ensuring a fuller die-cast furnace head. A second connector 13 is also provided between the first ejector tube 1 and the second ejector tube 2. The second connector 13 is U-shaped. This U-shape facilitates a secure connection between the burner assembly and the stove base cover while maintaining a certain distance between them. See also... Figs. 1-4The first injection pipe 1 is provided with an outer ring fire outlet pipe 14 for communicating the first injection pipe 1 with the outer ring fire cover, and the second injection pipe 2 is provided with a center fire outlet pipe 15 for communicating the second injection pipe 2 with the center fire cover; the outer ring fire outlet pipe 14 is connected with the center fire outlet pipe 15, facilitating the die casting of the aluminum liquid flow when the two are integrally formed, and ensuring that the furnace head produced by die casting is more full.

[0028] In the preferred embodiment, referring to Figs. 1-4 , the outer ring fire outlet pipe 14 and the center fire outlet pipe 15 are arranged in a staggered manner. That is, the first injection pipe 1 is longer, and since the first injection pipe 1 corresponds to a larger outer ring fire power, in order to ensure sufficient combustion, the length of the first injection pipe 1 can be increased, thereby forming a state in which the outer ring fire outlet pipe 14 and the center fire outlet pipe 15 are arranged in a staggered manner.

[0029] The utility model further provides an implementation mode of a gas stove, which comprises a glass panel, a center fire cover and an outer ring fire cover are arranged on the glass panel, the outer ring fire cover is sleeved outside the center fire cover, and further comprises the above-mentioned burner assembly, the first injection pipe 1 in the burner assembly is used for supplying gas to the outer ring fire cover, specifically, the first injection pipe 1 is connected with the outer ring fire cover through the outer ring fire outlet pipe 14 connected thereto, the second injection pipe 2 supplies gas to the center fire cover, specifically, the second injection pipe 2 is connected with the center fire cover through the center fire outlet pipe 15 connected thereto. The specific structure of the gas stove is the prior art except the burner assembly, and will not be repeated here. The gas stove has all the beneficial technical effects brought by the above-mentioned gas burner assembly, and will not be repeated here.

[0030] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0031] In the description of the specification, the description using the terms "preferred embodiment", "still another embodiment", "other embodiments", "specific example" or the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the specification, the illustrative expressions of the above terms are not necessarily directed to the same embodiment or example. Also, the specific features, structures, materials or characteristics described can be combined in an appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples, without contradiction.

[0032] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A burner assembly comprising a first injection pipe for providing outer ring fire mixture gas and a second injection pipe for providing center fire mixture gas, the first injection pipe and the second injection pipe are spaced apart, and the air inlet end of the first injection pipe and the air inlet end of the second injection pipe are connected, and a damper fixing plate is arranged at the connection, two gas inlet holes are arranged on the damper fixing plate, the two gas inlet holes correspond to and communicate with the first injection pipe and the second injection pipe one by one, and a plurality of primary air supply holes are further arranged on the damper fixing plate, part of the primary air supply holes correspond to and communicate with the first injection pipe, and the remaining primary air supply holes correspond to and communicate with the second injection pipe, characterized in that: An air compensation port is arranged between the damper fixing plate and the first ejector pipe and / or between the damper fixing plate and the second ejector pipe, which communicates with the first ejector pipe and / or the second ejector pipe, and is located at the bottom of the air inlet end of the first ejector pipe and / or the air inlet end of the second ejector pipe.

2. The combustor assembly of claim 1, wherein: An annular mounting bracket is arranged at the air inlet end and the connection between the first ejector pipe and the second ejector pipe, and the damper fixing plate is arranged in the inner hole of the annular mounting bracket, and a notch is arranged at the first ejector pipe and / or the second ejector pipe and on the annular mounting bracket, which forms the air compensation port with the damper fixing plate.

3. The combustor assembly of claim 2, wherein: The damper fixing plate is connected in the inner hole of the annular mounting bracket by riveting, and the ports of the non-air inlet end of the first ejector pipe and the non-air inlet end of the second ejector pipe are respectively connected with the port blocking plugs by riveting.

4. The combustor assembly of claim 1, wherein: The first ejector pipe comprises an inlet section, a straight pipe mixing section and a diffusion section connected in sequence, the inlet section has an inlet and an outlet, the diameter of the inlet of the inlet section is larger than the diameter of the outlet of the inlet section, the diameter of the inlet section gradually decreases from the inlet to the outlet, and the outlet of the inlet section communicates with the inlet of the straight pipe mixing section; the diameter of the diffusion section gradually increases from the inlet of the diffusion section, and the inlet of the diffusion section communicates with the outlet of the straight pipe mixing section; the structure of the first ejector pipe is the same as that of the second ejector pipe.

5. The combustor assembly of claim 4, wherein: A first connecting piece connecting the first ejector pipe and the second ejector pipe is arranged between the first ejector pipe and the second ejector pipe.

6. The combustor assembly of claim 4, wherein: A second connecting piece connecting the first ejector pipe and the second ejector pipe is further arranged between the first ejector pipe and the second ejector pipe, and the second connecting piece is in the shape of a concave.

7. The combustor assembly of claim 4, wherein: An outer ring fire outlet pipe for connecting the first ejector pipe and the outer ring fire cover is arranged on the first ejector pipe, and a center fire outlet pipe for connecting the second ejector pipe and the center fire cover is arranged on the second ejector pipe; the outer ring fire outlet pipe and the center fire outlet pipe are connected.

8. The combustor assembly of claim 7, wherein: The outer ring fire outlet pipe and the center fire outlet pipe are arranged in a staggered manner.

9. A gas stove comprising a glass panel, a center burner cap and an outer ring burner cap are arranged on the glass panel, the outer ring burner cap is sleeved on the periphery of the center burner cap, characterized in that: The burner assembly further comprises the first ejector pipe for supplying air to the outer ring fire cover and the second ejector pipe for supplying air to the center fire cover.

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