Single-channel upper air inlet fire cover seat and combustor

Abstract

The utility model relates to the technical field of gas stoves, and particularly discloses a single-channel upper air inlet fire cover seat and a combustor. The single-channel upper air inlet fire cover seat comprises a fire cover seat body, the fire cover seat body comprises an outer ring seat body and an inner ring seat body which are integrally formed, an outer ring gas mixing groove is formed in the top face of the outer ring seat body, an inner ring gas mixing groove is formed in the top face of the inner ring seat body, a first connecting opening is formed in the bottom wall of the outer ring gas mixing groove, and a second connecting opening is formed in the bottom wall of the inner ring seat body. A second connecting opening is formed in the bottom wall of the inner ring gas mixing groove; an injection channel and a connecting channel are arranged at the bottom of the burner cap seat body, the tail end of the injection channel is communicated with the outer ring gas mixing groove, the first connecting port is communicated with the connecting channel, the second connecting port is communicated with one end of the connecting channel, an opening is formed in the other end of the connecting channel, and a plug for blocking the opening is arranged in the opening. The utility model is convenient to process and manufacture.

Description

Technical Field

[0001] This utility model relates to the field of gas stove technology, and in particular to a single-channel top-inlet flame cover and burner. Background Technology

[0002] Stoves with top-mounted burners avoid risks such as backfire and glass breakage, and there is no need to open vents in the cabinet. Currently, many stoves use burners with this structure.

[0003] For example, Chinese utility model patent with publication number CN220567233U discloses a single ejector tube top air intake stove burner. In order to connect the outer ring mixing chamber and the inner ring mixing chamber, a connecting channel is formed on the side wall of the outer ring mixing chamber to connect with the inner ring mixing chamber. This structure has the problem of high processing difficulty. Utility Model Content

[0004] This utility model provides a single-channel top-inlet flame cover and burner, which is easy to process and manufacture.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] According to a first aspect of the present invention, an embodiment of the present invention provides a single-channel top-inlet flame cover holder, comprising a flame cover holder body, the flame cover holder body comprising an integrally formed outer ring seat and an inner ring seat, the top surface of the outer ring seat being provided with an outer ring mixing groove, the top surface of the inner ring seat being provided with an inner ring mixing groove, the bottom wall of the outer ring mixing groove being provided with a first connection port, and the bottom wall of the inner ring mixing groove being provided with a second connection port; the bottom of the flame cover holder body is provided with an ejector channel and a connecting channel, the tail end of the ejector channel communicating with the outer ring mixing groove, the first connection port communicating with the connecting channel, the second connection port communicating with one end of the connecting channel, the other end of the connecting channel forming an opening, and a plug for sealing the opening being provided in the opening.

[0007] In some embodiments, two connection channels are provided, with two first connection ports and two second connection ports respectively, and the two connection channels are symmetrically arranged relative to the ejection channel axis.

[0008] In some embodiments, the axis of the ejector channel passes through the axis of the inner ring seat, the two connecting channels are coaxially arranged, and the axis of the connecting channel is perpendicular to the axis of the ejector channel.

[0009] In some embodiments, the plug is interference-fitted with the opening.

[0010] In some embodiments, an inner groove is provided on the bottom wall of the outer ring mixing groove, the inner groove is connected to the tail end of the ejector channel, and an air baffle is fixed on the top of the inner groove, the air baffle is provided with a plurality of air vents.

[0011] In some embodiments, the inner wall of the groove is provided with a mounting post, and the tail end of the ejector channel faces the mounting post.

[0012] In some embodiments, the baffle plate is fixed to the mounting post by screws.

[0013] In some embodiments, the flame cover body includes an annular plate located outside the inner annular seat body, and the annular plate has two notches around its periphery.

[0014] According to a second aspect of the present invention, an embodiment of the present invention provides a burner, including a burner head seat, an outer ring burner cap, an inner ring burner cap, and a single-channel upper air intake burner cap seat as described in any of the first aspects above. The burner cap seat body is disposed on the top surface of the burner head seat, the outer ring burner cap is disposed on the outer ring seat body, the inner ring burner cap is disposed on the inner ring seat body, a protruding nozzle seat is disposed on the top surface of the burner head seat, and a nozzle is disposed on the side of the nozzle seat facing the injection channel.

[0015] In some embodiments, the bottom surface of the burner seat body is provided with three positioning posts, and the top surface of the burner head seat is provided with three positioning holes that are respectively adapted to the three positioning posts. The three positioning posts are respectively inserted into the positioning holes that are adapted to them, and the three positioning holes are distributed in a triangle on the top surface of the burner head seat.

[0016] This utility model has at least the following beneficial effects: The connection channel is set at the bottom of the burner cap body. The first connection port is connected to the connection channel, and the second connection port is connected to one end of the connection channel. Thus, the outer ring mixing groove and the inner ring mixing groove are connected through the connection channel. The other end of the connection channel forms an opening, and a hole can be drilled from the opening to form the connection channel. A plug is set in the opening to seal the opening and prevent air leakage. Therefore, the connection channel with this structure is easy to process and form, making the entire burner cap easy to process and manufacture. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a single-channel upper air intake fire cover seat according to an embodiment of the present invention;

[0018] Figure 2 for Figure 1 The diagram shows the structure of a single-channel top-inlet fire cover from another perspective;

[0019] Figure 3 for Figure 1 A cross-sectional view taken along section line AA.

[0020] Figure 4 This is a schematic diagram of the structure of a single-channel upper air intake fire cover seat according to another embodiment of the present utility model;

[0021] Figure 5 This is a schematic diagram of the structure of a burner according to an embodiment of the present invention;

[0022] Figure 6 for Figure 5 The diagram shown is an exploded view of the burner.

[0023] The attached figures are labeled as follows:

[0024] Outer ring seat 100, outer ring mixing groove 110, first connecting port 120, inner groove 130, baffle plate 140, vent hole 141, mounting post 150, screw 160, positioning post 170.

[0025] Inner ring seat 200, inner ring mixing groove 210, second connecting port 220, ring plate 230, notched hole 231;

[0026] Ejector channel 310, connecting channel 320, plug 321;

[0027] Burner head base 400, nozzle base 410, nozzle 420, positioning hole 430;

[0028] Outer ring burner cap 510, inner ring burner cap 520. Detailed Implementation

[0029] This invention provides the following description with reference to the accompanying drawings to aid in a comprehensive understanding of the various embodiments of the invention as defined by the claims and their equivalents. The description includes various specific details to aid understanding, but these details should be considered exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the invention.

[0030] In the description of this utility model, the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] It should be understood that when one element (e.g., the first element) is “connected” to another element (e.g., the second element), the element may be directly connected to the other element, or there may be an intervening element (e.g., the third element) between the element and the other element.

[0032] An embodiment of this utility model provides a single-channel top-inlet flame cover holder, such as... Figure 1-3 As shown, the device includes a burner cap body, which comprises an integrally formed outer ring seat 100 and an inner ring seat 200. The outer ring seat 100 may be annular and located outside the inner ring seat 200. The outer ring seat 100 and the inner ring seat 200 may be coaxially arranged. The top surface of the outer ring seat 100 is provided with an outer ring mixing groove 110, and the top surface of the inner ring seat 200 is provided with an inner ring mixing groove 210. The outer ring mixing groove 110 is used for mixing the fuel gas and air in the outer ring, and the inner ring mixing groove 210 is used for mixing the fuel gas and air in the inner ring.

[0033] A first connection port 120 is provided on the bottom wall of the outer ring mixing groove 110, and a second connection port 220 is provided on the bottom wall of the inner ring mixing groove 210. The bottom of the burner holder body is provided with an ejector channel 310 and a connecting channel 320. The head end of the ejector channel 310 is used to receive the gas injected by the nozzle, and the tail end of the ejector channel 310 is connected to the outer ring mixing groove 110, so that the gas mixture of gas and air can enter the outer ring mixing groove 110 through the ejector channel 310. The first connection port 120 is connected to the connecting channel 320, and the second connection port 220 is connected to one end of the connecting channel 320. Thus, the outer ring mixing groove 110 is connected to the inner ring mixing groove 210 through the connecting channel 320, and gas can also enter the inner ring mixing groove 210. The other end of the connecting channel 320 forms an opening, and a plug 321 is provided inside the opening to prevent gas leakage.

[0034] When forming the connecting channel 320, it is not affected by the side wall of the outer ring mixing groove 110. The connecting channel 320 can be formed by drilling from the opening or by die casting. This structure of the connecting channel 320 is easy to process and form, making the entire flame cap seat easy to process and manufacture.

[0035] In some embodiments, two connection channels 320 are provided, and two first connection ports 120 and two second connection ports 220 are provided respectively. The two first connection ports 120 are respectively connected to the two connection channels 320, and the two second connection ports 220 are also respectively connected to the two connection channels 320. The two connection channels 320 are symmetrically arranged with respect to the axis of the ejector channel 310, so that the gas in the outer ring mixing groove 110 can enter the inner ring mixing groove 210 relatively evenly from both sides, so that the inner ring flame remains relatively uniform.

[0036] Furthermore, the axis of the ejector channel 310 passes through the axis of the inner ring seat 200, and the two connecting channels 320 are coaxially arranged, with the axis of the connecting channel 320 perpendicular to the axis of the ejector channel 310. This structure allows the gas flowing out of the ejector channel 310 to be evenly distributed to both sides, so that the outer ring flame can also remain relatively uniform.

[0037] Furthermore, the sidewalls forming the ejection channel 310 and the sidewalls forming the connecting channel 320 can be connected to each other. The outer ring seat 100 and the inner ring seat 200 can be connected together through the sidewalls of the ejection channel 310 and the connecting channel 320 to simplify the connection structure and make the overall structure compact.

[0038] In some embodiments, the plug 321 is interference-fitted with the opening to seal the opening through the interference fit, and the plug 321 can be tightly attached to the inner wall of the opening to improve the sealing performance.

[0039] In some embodiments, such as Figure 1 and Figure 4 As shown, an inner groove 130 is provided on the bottom wall of the outer ring mixing groove 110. The inner groove 130 is connected to the tail end of the ejector channel. The gas first enters the inner groove 130 through the ejector channel, and then enters the outer ring mixing groove 110 through the inner groove 130. A baffle plate 140 is fixed on the top of the inner groove 130, and a plurality of vent holes 141 are provided on the baffle plate 140.

[0040] When the gas in the ejector channel enters the inner groove 130, the baffle plate 140 can prevent the gas from flowing directly upward. Only a portion of the gas can flow upward through the vent 141, while the remaining gas is blocked and flows to both ends of the baffle plate 140. This can slow down the airflow speed, prevent the airflow from rushing straight and causing flame lift-off, and keep the flame relatively uniform.

[0041] Furthermore, the inner wall of the groove 130 is provided with an installation column 150, and the tail end of the ejector channel faces the installation column 150. After the gas is blown out from the ejector channel, some of the gas will be blown to the installation column 150. The installation column 150 plays a certain role in diverting the gas, and some of the gas will be diverted to both sides of the installation column 150, so that the gas can be diffused relatively evenly in the outer ring mixing groove 110.

[0042] Furthermore, the baffle plate 140 is locked and fixed to the mounting post 150 by screws 160, so that the mounting post 150 can be used for both diversion and fixing of the baffle plate 140. The baffle plate 140 is provided with a through hole, and the top surface of the mounting post 150 is provided with a threaded hole. The screw 160 passes through the through hole on the baffle plate 140 and is then fixed into the threaded hole on the top surface of the mounting post 150.

[0043] In some embodiments, such as Figure 1 and Figure 4 As shown, the inner groove 130 can be fan-shaped, and the baffle plate 140 can also be fan-shaped. This structure allows the gas to diffuse more evenly in the outer ring mixing groove 110.

[0044] In some embodiments, such as Figure 4As shown, the burner seat body includes an annular plate 230 located outside the inner annular seat body 200. The annular plate 230 has two notches 231 around its perimeter. The two notches 231 can be used to avoid the ignition needle and thermocouple, respectively. The position of the two notches 231 can be used to position the entire burner seat so that the entire burner seat can be accurately placed on the burner head seat.

[0045] The notch 231 can be semi-circular, and the ignition needle and thermocouple pass through the two notches 231 and extend to the top of the burner cap body.

[0046] An embodiment of this utility model provides a burner, such as Figure 5 and Figure 6 As shown, it includes a burner head base 400, an outer ring burner cover 510, an inner ring burner cover 520, and a single-channel upper air intake burner cover seat of any of the above embodiments. For a detailed description of the single-channel upper air intake burner cover seat, please refer to the above embodiments, which will not be repeated here.

[0047] The burner cap body is located on the top surface of the burner head seat 400. The outer ring burner cap 510 covers the outer ring seat body 100, and the inner ring burner cap 520 covers the inner ring seat body 200. The mixed gas in the outer ring mixing groove can be ejected from the flame holes on the outer ring burner cap 510, forming an outer ring flame after ignition. Similarly, the mixed gas in the inner ring mixing groove can be ejected from the flame holes on the inner ring burner cap 520, forming an inner ring flame after ignition. A protruding nozzle seat 410 is provided on the top surface of the burner head seat 400, and a nozzle 420 is provided on the side of the nozzle seat 410, facing the ejector channel. The nozzle 420 is used to inject combustion gas into the head end of the ejector channel, where the combustion gas and air then enter the ejector channel together.

[0048] In this embodiment, the nozzle 420 is arranged laterally, which results in a longer ejector channel, improving combustion performance and preventing water overflow into the burner seat, making it more practical and easier to clean.

[0049] In some embodiments, such as Figure 2 and Figure 6 As shown, the bottom surface of the burner cap base body is provided with three positioning posts 170, and the top surface of the burner head base 400 is provided with three positioning holes 430 that are respectively adapted to the three positioning posts 170. The three positioning posts 170 are respectively inserted into the corresponding positioning holes 430, and the three positioning holes 430 are distributed in a triangle on the top surface of the burner head base 400. This structure can stably support the burner cap base body and restrict the movement of the burner cap base body on the top surface of the burner head base 400.

[0050] The terms and words used in the foregoing description and claims are not limited to their literal meaning, but are merely used by the applicant to enable a clear and consistent understanding of the present invention. Therefore, those skilled in the art should understand that the foregoing description of various embodiments of the present invention is for illustrative purposes only, and not intended to limit the present invention as defined by the appended claims and their equivalents.

Claims

1. A single pass top air inlet fire cover housing characterised in that: The fire cover seat body comprises an outer ring seat body and an inner ring seat body, the top surface of the outer ring seat body is provided with an outer ring gas mixing groove, the top surface of the inner ring seat body is provided with an inner ring gas mixing groove, the bottom wall of the outer ring gas mixing groove is provided with a first connecting port, and the bottom wall of the inner ring gas mixing groove is provided with a second connecting port; the bottom of the fire cover seat body is provided with an injection channel and a connecting channel, the tail end of the injection channel is communicated with the outer ring gas mixing groove, the first connecting port is communicated with the connecting channel, the second connecting port is communicated with one end of the connecting channel, the other end of the connecting channel forms an opening, and the opening is provided with a plug for plugging the opening.

2. The single-pass top inlet firepot of claim 1, wherein: The connecting channel is provided with two, the first connecting port and the second connecting port are correspondingly provided with two, and the two connecting channels are symmetrically arranged with respect to the axis of the injection channel.

3. The single-pass top inlet firepot of claim 1, wherein: The axis of the injection channel passes through the axis of the inner ring seat body, and the two connecting channels are coaxially arranged, and the axis of the connecting channel is perpendicular to the axis of the injection channel.

4. The single-pass top inlet firepot of claim 1, wherein: The plug is in interference fit with the opening.

5. The single-pass top-vented firepot of any of claims 1-4, wherein: The bottom wall of the outer ring gas mixing groove is provided with an inner groove, the inner groove is communicated with the tail end of the injection channel, the top of the inner groove is fixed with a gas baffle, and the gas baffle is provided with a plurality of gas permeable holes.

6. The single-pass top inlet firepot of claim 5, wherein: The inner wall of the inner groove is provided with a mounting column, and the tail end of the injection channel faces the mounting column.

7. The single-pass top inlet firepot of claim 6, wherein: The gas baffle is fixed on the mounting column by screw locking.

8. The single-pass top-vented firepot of any of claims 1-4, wherein: The fire cover seat body comprises a ring plate outside the inner ring seat body, and the periphery of the ring plate is provided with two missing holes.

9. A burner characterized by: The fire cover seat body comprises a ring plate outside the inner ring seat body, and the periphery of the ring plate is provided with two missing holes.

10. The burner of claim 9, wherein: The fire cover seat body comprises a ring plate outside the inner ring seat body, and the periphery of the ring plate is provided with two missing holes. The fire cover seat body comprises a ring plate outside the inner ring seat body, and the periphery of the ring plate is provided with two missing holes. The fire cover seat body comprises a ring plate outside the inner ring seat body, and the periphery of the ring plate is provided with two missing holes.

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