Hollow direct injection burner

Abstract

The utility model provides a hollow direct injection burner which comprises a fire distributor, a furnace end seat, a nozzle assembly and an injection pipe, and the furnace end seat comprises a hollow center, an inner ring fuel gas channel and an outer ring fuel gas channel which are sleeved layer by layer and coaxially arranged; an outer ring gas inlet and an inner ring gas inlet are further formed in the bottom of the furnace end base, the outer ring gas inlet is communicated with the outer ring gas channel, and the inner ring gas inlet is communicated with the inner ring gas channel; the nozzle assembly comprises a direct spraying pipe, a direct spraying head and a mounting support which are sequentially mounted and communicated, the mounting support is fixedly mounted at the bottom of the furnace end base and located at the lower end of the hollowed-out center, the direct spraying pipe and the direct spraying head are located in the hollowed-out center, and the direct spraying pipe extends upwards to penetrate through the fire distributor; the direct spraying pipe is fixedly installed in the hollow center through the die-casting aluminum support and is concentric and coaxial with the hollow center, and it is guaranteed that flames do not shift in the combustion process.

Description

Technical Field

[0001] The utility model relates to the technical field of gas stoves, in particular to a hollow direct-injection burner. Background Art

[0002] The stove burner is generally used on gas stoves, and is usually composed of a fire distributor, a burner and an ejector tube. The fire distributor includes a straight nozzle, an inner ring and an outer ring. The straight nozzle concentrates the firepower on the bottom of the pot, and the middle ring and outer ring fire covers use upper and lower layered saw grooves to burn outward, so that the pot is heated faster and more evenly. The straight nozzle on the market is usually connected to the external gas pipe with an elbow joint. The elbow joint has a turning angle, which will have a certain impact on the flow rate of the incoming gas, thereby causing problems such as slowing down the gas flow rate and unsmooth gas circulation, resulting in the burning flame not being fierce enough and prone to yellow flames. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a hollow direct injection burner.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A hollow direct injection burner comprises an ignition divider, a burner head seat, a nozzle assembly and an ejector tube, wherein the ignition divider, the nozzle assembly and the ejector tube are respectively adapted to be installed on the burner head seat, and the burner head seat comprises a hollow center, an inner ring gas channel and an outer ring gas channel which are arranged coaxially and layer by layer; an outer ring gas inlet and an inner ring gas inlet are also provided at the bottom of the burner head seat, the outer ring gas inlet is connected to the outer ring gas channel, and the inner ring gas inlet is connected to the inner ring gas channel; the nozzle assembly comprises a straight injection pipe, a straight injection head and a mounting bracket which are installed and connected in sequence, the mounting bracket is fixedly mounted on the bottom of the burner head seat and is located at the lower end of the hollow center, the straight injection pipe and the straight injection head are located in the hollow center, and the straight injection pipe extends upward through the ignition divider.

[0006] Furthermore, the mounting bracket includes a die-cast aluminum bracket, a horizontal joint and an external aluminum air pipe; one end of the horizontal joint is connected to the die-cast aluminum bracket, and the other end is connected to the external aluminum air pipe, and the axes of the die-cast aluminum bracket, the horizontal joint and the external aluminum air pipe are located on the same axis.

[0007] Furthermore, a spray hole is provided on the top of the straight spray head.

[0008] Furthermore, the top surface of the inner cavity of the straight nozzle is provided with a conical surface, and the spray hole is located at the top end of the conical surface.

[0009] Furthermore, a plurality of air inlet holes are provided on the outer wall of the bottom of the straight injection pipe.

[0010] Furthermore, the fire divider includes an inner ring fire divider, an outer ring fire divider and a fire divider base; the fire divider base is provided with an inner ring fire divider channel connected to the inner ring gas channel and an outer ring fire divider channel connected to the outer ring gas channel; the inner ring fire divider channel is provided with a plurality of inner ring fire divider ports, and the inner ring fire divider ports are connected to the inner ring gas channel; the outer ring fire divider channel is provided with a plurality of outer ring fire divider ports, and the outer ring fire divider ports are connected to the outer ring gas channel; the inner ring fire divider is adapted to be installed on the inner ring fire divider channel, and the outer ring fire divider is adapted to be installed on the outer ring fire divider channel.

[0011] Furthermore, the outer diameter of the inner ring fire distribution channel is smaller than the inner diameter of the outer ring fire distribution channel.

[0012] Furthermore, fire dividing grooves are provided on the circumferential outer walls of the outer ring fire divider and the inner ring fire divider, and the fire dividing grooves are annularly surrounding the outer walls of the outer ring fire divider and the inner ring fire divider.

[0013] Furthermore, the ejector pipe comprises an outer ring ejector pipe and an inner ring ejector pipe arranged side by side; the outer ring ejector pipe is connected to the outer ring gas channel; the inner ring ejector pipe is connected to the inner ring gas channel; and a damper is provided at the air inlet end of the ejector pipe.

[0014] The utility model has the following beneficial effects:

[0015] 1. The straight nozzle is fixedly installed in the hollow center through a die-cast aluminum bracket, which is concentric and coaxial with the hollow center to ensure that the flame does not deviate during combustion.

[0016] 2. The die-cast aluminum bracket is connected to the external aluminum gas pipe through a horizontal joint. The horizontal joint is a straight pipe that allows the gas to enter and maintain the flow rate more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the overall structure of an embodiment of the utility model.

[0018] Figure 2 It is an overall structural exploded view of an embodiment of the utility model.

[0019] Figure 3 This is a front cross-sectional view of a straight spray nozzle according to an embodiment of the present utility model.

[0020] Reference numerals in the figure: fire distributor 1, inner ring fire distributor 11, outer ring fire distributor 12, fire distributor base 13, inner ring fire distribution channel 14, outer ring fire distribution channel 15, inner ring fire distribution port 16, outer ring fire distribution port 17, fire distribution groove 18;

[0021] Burner base 2, hollow center 21, inner ring gas channel 22, outer ring gas channel 23, outer ring gas inlet 24, inner ring gas inlet 25;

[0022] Nozzle assembly 3, straight nozzle 31, air inlet 311, straight nozzle 32, nozzle 321, conical surface 322, mounting bracket 33, side wing 331, side wing 331, die-cast aluminum bracket 34, horizontal joint 35, external aluminum air pipe 36;

[0023] The ejector tube 4 , the outer ring ejector tube 41 , the inner ring ejector tube 42 , and the damper 43 . DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] like Figure 1-Figure 3 As shown, a hollow direct injection burner is used on a gas stove, comprising a flame distributor 1, a burner base 2, a nozzle assembly 3 and an ejector pipe 4. The flame distributor 1 is installed on the burner base 2, the ejector pipe 4 is installed on one side of the burner base 2, and the nozzle assembly 3 is installed at the bottom of the burner base 2.

[0028] like Figure 1 , Figure 2As shown, the burner base 2 includes a hollow center 21, an inner ring gas channel 22 and an outer ring gas channel 23 which are coaxially arranged and are covered layer by layer from the inside to the outside. The hollow center 21, the inner ring gas channel 22 and the outer ring gas channel 23 are independent of each other and are not connected to each other. The bottom of the burner base 2 is also provided with an outer ring gas inlet 24 and an inner ring gas inlet 25, the outer ring gas inlet 24 is connected to the outer ring gas channel 23, and the inner ring gas inlet 25 is connected to the inner ring gas channel 22. The burner base 2 is also provided with an ignition needle and a thermocouple needle.

[0029] The fire divider 1 comprises an inner ring fire divider 11, an outer ring fire divider 12 and a fire divider base 13. The fire divider base 13 is provided with an inner ring fire divider channel 14 and an outer ring fire divider channel 15. The inner ring fire divider 11 covers and communicates with the inner ring fire divider channel 14. The outer ring fire divider 12 covers and communicates with the outer ring fire divider channel 12.

[0030] The outer diameter of the inner ring flame divider 11 is smaller than the inner diameter of the outer ring flame divider 12. The level of the inner ring flame divider 11 is higher than that of the outer ring flame divider 12, so that the burning flame can heat the pot faster and more evenly.

[0031] Furthermore, the inner ring fire distribution channel 14 is evenly distributed with a plurality of inner ring fire distribution ports 16, so that the gas is evenly distributed in the inner ring fire distribution channel 14, thereby making the flame more uniform and providing the cookware with more uniform and stable heat energy. Similarly, the outer ring fire distribution channel 15 is also evenly distributed with a plurality of outer ring fire distribution ports 17.

[0032] The outer ring fire divider 12 and the inner ring fire divider 11 are provided with fire divider grooves 18 on their circumferential outer walls. The fire divider grooves 18 are annularly surrounding the outer ring fire divider 12 and the inner ring fire divider 11. Flames are ejected outward through the fire divider grooves 18.

[0033] The ejector pipe 4 includes an outer ring ejector pipe 41 and an inner ring ejector pipe 42 arranged side by side. The outer ring ejector pipe 41 is communicated with the outer ring gas channel 23. The inner ring ejector pipe 42 is communicated with the inner ring gas channel 22. A damper 43 is provided at the air inlet end of the ejector pipe 4 for introducing air so that the gas can be burned more fully.

[0034] The nozzle assembly 3 is located in the hollow center 21 and is coaxially arranged with the hollow center.

[0035] The nozzle assembly 3 includes a straight spray pipe 31, a straight spray head 32 and a mounting bracket 33 which are sequentially installed and connected, and the mounting bracket 33 is connected to an external gas pipe. Provide a central flame for the burner. The mounting bracket 33 is provided with a side wing 331, which is fixedly installed at the bottom of the burner seat 2 by screws and is located directly below the hollow center 21. The straight spray head 32 is connected to the mounting bracket 33 by threads and is connected to the mounting bracket 33. The straight spray pipe 31 is installed on the straight spray head 32 by threads and extends upward to the inner ring of the inner ring fire distributor 11. The top of the straight spray head 32 is provided with a spray hole 321, and the straight spray pipe 31 is connected to the mounting bracket 33 through the spray hole 321. If the spray hole 321 is blocked, the straight spray pipe 31 and the straight spray head 32 can be directly removed from the fire distributor for cleaning or replacement, which is more intuitive and quicker than the previous method of removing and cleaning the straight spray head 32 from the bottom of the stove.

[0036] Furthermore, after the direct injection pipe 31 is positioned and installed by the mounting bracket 33 , it is located on the same axis as the hollow center 21 , which can ensure that it has a higher concentricity with the hollow center 21 and ensure that the direct injection flame will not be offset and is located exactly in the center of the ignition distributor 1 .

[0037] Further, such as Figure 3 As shown, the top surface of the inner cavity of the straight nozzle 32 is provided with a conical surface 322, and the nozzle hole 321 is located at the top of the conical surface 322. The conical surface 322 is used to gather the gas near the nozzle hole 321, so that when the gas enters the inner cavity of the straight nozzle 32, it can flow along the inner wall of the conical surface 322 and concentrate below the nozzle hole 321.

[0038] Further, such as Figure 2 As shown, in order to make the gas flow rate entering the mounting bracket 33 larger and smoother. The mounting bracket 33 includes a die-cast aluminum bracket 34, a horizontal joint 35 and an external aluminum gas pipe 36. One end of the horizontal joint 35 is connected to the die-cast aluminum bracket 34, and the other end is connected to the external aluminum gas pipe 36. Specifically, the horizontal joint 35 is a straight pipe, and the axis cores of the die-cast aluminum bracket 34, the horizontal joint 35 and the external aluminum gas pipe 36 are located on the same axis, so that when the gas passes through, the flow rate is faster and smoother, effectively avoiding the phenomenon of yellow flame of gas combustion caused by the poor gas flow rate due to the bend.

[0039] Furthermore, in order to make the gas ejected from the direct injection pipe 31 burn more completely, a plurality of air inlet holes 311 are provided on the bottom outer wall of the direct injection pipe 31 for replenishing air into the direct injection pipe 31 .

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any technical solutions that can be obtained by those skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention and on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. A hollow direct injection burner, comprising a flame distributor (1), a burner base (2), a nozzle assembly (3) and an ejector tube (4), wherein the flame distributor (1), the nozzle assembly (3) and the ejector tube (4) are respectively adapted to be mounted on the burner base (2), and characterized in that: The burner head seat (2) comprises a hollow center (21) which is coaxially arranged with layers of outer sleeves, an inner ring gas channel (22) and an outer ring gas channel (23); the bottom of the burner head seat (2) is also provided with an outer ring gas inlet (24) and an inner ring gas inlet (25), the outer ring gas inlet (24) is connected to the outer ring gas channel (23), and the inner ring gas inlet (25) is connected to the inner ring gas channel (22); the nozzle assembly (3) comprises a straight injection pipe (31), a straight injection head (32) and a mounting bracket (33) which are installed and connected in sequence, the mounting bracket (33) is fixedly mounted on the bottom of the burner head seat (2) and is located at the lower end of the hollow center (21), the straight injection pipe (31) and the straight injection head (32) are located in the hollow center (21), and the straight injection pipe (31) extends upward through the ignition distributor (1).

2. The hollow direct injection burner according to claim 1, characterized in that: The mounting bracket (33) comprises a die-cast aluminum bracket (34), a horizontal joint (35) and an external aluminum air pipe (36); one end of the horizontal joint (35) is connected to the die-cast aluminum bracket (34), and the other end is connected to the external aluminum air pipe (36); the horizontal joint (35) is a straight pipe; the axis cores of the die-cast aluminum bracket (34), the horizontal joint (35) and the external aluminum air pipe (36) are located on the same axis.

3. The hollow direct injection burner according to claim 1, characterized in that: The top of the straight spray head (32) is provided with a spray hole (321).

4. The hollow direct injection burner according to claim 3, characterized in that: The top surface of the inner cavity of the straight spray head (32) is provided with a conical surface (322), and the spray hole (321) is located at the top end of the conical surface (322).

5. The hollow direct injection burner according to claim 1, characterized in that: A plurality of air inlet holes (311) are provided on the outer wall of the bottom of the direct injection pipe (31).

6. The hollow direct injection burner according to claim 1, characterized in that: The ignition divider (1) comprises an inner ring ignition divider (11), an outer ring ignition divider (12) and an ignition divider base (13); the ignition divider base (13) is provided with an inner ring ignition divider channel (14) connected to the inner ring gas channel (22) and an outer ring ignition divider channel (15) connected to the outer ring gas channel (23); the inner ring ignition divider channel (14) is provided with a plurality of inner ring ignition ports (16), and the inner ring ignition ports (16) are connected to the inner ring gas channel (22); the outer ring ignition divider channel (15) is provided with a plurality of outer ring ignition ports (17), and the outer ring ignition ports (17) are connected to the outer ring gas channel (23); the inner ring ignition divider (11) is adapted to be installed on the inner ring ignition divider channel (14), and the outer ring ignition divider (12) is adapted to be installed on the outer ring ignition divider channel (15).

7. The hollow direct injection burner according to claim 6, characterized in that: The outer diameter of the inner ring fire distribution channel (14) is smaller than the inner diameter of the outer ring fire distribution channel (15).

8. The hollow direct injection burner according to claim 6, characterized in that: A fire dividing groove (18) is provided on the circumferential outer wall of the outer ring fire dividing device (12) and the inner ring fire dividing device (11), and the fire dividing groove (18) is annularly surrounding the outer wall of the outer ring fire dividing device (12) and the inner ring fire dividing device (11).

9. The hollow direct injection burner according to claim 1, characterized in that: The ejector pipe (4) comprises an outer ring ejector pipe (41) and an inner ring ejector pipe (42) arranged side by side; the outer ring ejector pipe (41) is in communication with the outer ring gas channel (23); the inner ring ejector pipe (42) is in communication with the inner ring gas channel (22); and a damper (43) is provided at the air inlet end of the ejector pipe (4).

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