A gas burner with strong ejection force and a gas stove using the burner

Abstract

The present invention relates to a gas burner with strong ejection force, characterized in that it comprises an annular outer ring gas mixing chamber, which is divided into at least two gas mixing sub-chambers along the circumferential direction, and each gas mixing sub-chamber is respectively connected to an outer ring ejection tube; and also relates to a gas stove. In the present invention, the outer ring gas mixing chamber is divided into at least two gas mixing sub-chambers along the circumferential direction, and each gas mixing sub-chamber is respectively connected to an outer ring ejection tube, that is, each gas mixing sub-chamber ejects airflow through an independent outer ring ejection tube, thereby enhancing the ejection capacity of the outer ring in the gas burner. In the gas stove of the present invention, the burner is positioned on the liquid receiving tray by inserting the gas connector into the mounting hole, and is supported on the liquid receiving tray by supporting feet. In addition, the ignition needle and the thermocouple are penetrated on the burner, so that the burner can be removed from the liquid receiving tray as a whole, and at this time, only the ignition needle and the thermocouple are left on the liquid receiving tray, which is convenient for cleaning.

Description

Technical Field

[0001] The invention relates to the field of gas stoves, in particular to a gas burner with strong ejection force and a gas stove having the burner. Background Art

[0002] Existing gas burners are generally provided with inner and outer ring fire covers, and correspondingly, inner and outer ring ejector tubes corresponding to the inner and outer ring fire covers are provided on the gas stove. Due to the limitation of its own structure, traditional upper air intake gas burners generally have the problem of insufficient ejection force. For example, the Chinese invention patent with application number 201711370764.X (publication number CN108036320A) discloses an upper burner, which includes a fire cover, a middle plate and a base from top to bottom. The middle plate and the base are installed and matched to form a small fire ejector tube and a main fire ejector tube. A small fire outlet tube and a main fire outlet tube are also provided in the middle plate. The outlet end of the small fire ejector tube is connected to the small fire outlet tube, and the outlet end of the main fire ejector tube is connected to the main fire outlet tube. The other end of the small fire ejector tube and the main fire ejector tube, that is, the air inlet end, is respectively connected to the gas interface. The middle plate and the fire cover are installed and matched to form a combustion chamber, and the top surface of the fire cover is provided with a number of evenly distributed strip-shaped fire outlet holes. In this patent, due to the structural limitation of the combustion chamber, the main fire ejector tube is relatively short, which shortens its ejection distance and affects its ejection force.

[0003] The Chinese invention patent with the patent number ZL201010270662 (the authorization announcement number is CN101936548B) discloses a top-inlet gas cooker, wherein the burner base has a central ejector tube, the upper surface of the burner base has an annular groove, the side has an air supply hole, the bottom has a support foot, and is connected to two side ejector tubes, the lower end surface of the outer ring fire cover has a circular ring channel, the outer circumference has a fire hole, the central fire cover is mounted in the center of the outer ring fire cover, the bottom of the gas ejector base is equipped with a central gas nozzle and a central gas interface, and the upper surface is equipped with two nozzles, which are respectively aimed at the inlets of the two side ejector tubes. Although the ejection force can be enhanced to a certain extent by setting up double side ejector tubes in this patent, the setting up of double ejector tubes not only makes the structure of the burner complicated, but also restricts the further layout and setting of the burner structure, which is not conducive to further improvement of the burner structure. Summary of the invention

[0004] The first technical problem to be solved by the present invention is to provide a gas burner with a simple structure and strong ejection force in view of the prior art.

[0005] The second technical problem to be solved by the present invention is to provide a gas stove with a simple structure, easy cleaning and high combustion efficiency in view of the prior art.

[0006] The technical solution adopted by the present invention to solve the above-mentioned first technical problem is: a gas burner with strong ejection force, characterized in that it includes an annular outer ring gas mixing chamber, which is divided into at least two gas mixing sub-chambers along the circumferential direction, and each gas mixing sub-chamber is respectively connected to an outer ring ejection pipe.

[0007] In order to further improve the ejection capacity of each outer ring ejector tube, each outer ring ejector tube is arranged inwardly and downwardly relative to the outer ring gas mixing chamber, and the air inlet ports of each outer ring ejector tube converge inwardly. In this way, the length of each outer ring ejector tube can be extended to the maximum extent, thereby ensuring its ejection capacity to the maximum extent.

[0008] Furthermore, the air inlet ports of the outer ring ejector tubes converge with the central axis of the outer ring gas mixing chamber as the center, and the projection of the extension direction of each outer ring ejector tube on the circle where the outer ring gas mixing chamber is located is eccentrically arranged relative to the circle where the outer ring gas mixing chamber is located. In this way, the airflow ejected from each outer ring ejector tube can have a certain tangential speed relative to the outer ring gas mixing chamber, which is beneficial to the uniformity of the flame.

[0009] Furthermore, it also includes an inner ring gas mixing chamber and an inner ring ejector tube, the gas inlet port of the inner ring ejector tube is connected to any one of the above gas mixing chambers, and the gas outlet port is connected to the above inner ring gas mixing chamber. This not only makes the burner compact and small in size, but also enables the inner ring to have secondary ejection, thereby significantly improving the ejection performance and obtaining a better ejection effect.

[0010] Preferably, the volume of the gas mixture chamber connected to the inner ring ejector tube is smaller than that of other gas mixture chambers, so as to maximize the combustion efficiency of the outer ring and the uniformity of flame combustion while ensuring the combustion requirements of the inner ring fire.

[0011] Preferably, the inner ring gas mixing chamber is arranged above the converging point of the air inlet ports of the outer ring ejector tubes. Such a design can make the overall structure of the burner more compact and further reduce its volume.

[0012] Preferably, the burner in the present invention comprises an annular cover plate and an annular outer ring base, the outer ring base comprises an annular bottom wall, the inner edge of the annular bottom wall extends vertically or obliquely upward to form an inner wall, and the top of the inner wall is provided with inner and outer fire outlet grooves spaced apart along the circumferential direction; the cover plate comprises an annular wall extending obliquely inward from bottom to top, the lower edge of the annular wall extends obliquely or vertically downward to form a lower edge, and the upper edge of the annular wall extends obliquely upward inward to form an upper edge, the cover plate is covered on the above-mentioned outer ring base to enclose the above-mentioned outer ring mixing chamber, the above-mentioned upper edge is covered on the above-mentioned fire outlet groove to form an outer ring fire outlet hole, and the above-mentioned lower edge is placed on the outer edge of the annular bottom wall.

[0013] Furthermore, the inner side of the top of the inner wall has an inner annular surface extending downward from the outside to the inside along the circumferential direction. The above-mentioned fire outlet groove opens on the inner annular surface and is inclined in the same direction along the circumferential direction, thereby forming an inner rotating fire structure on the outer ring, thereby increasing the contact area between the flame and the bottom of the pot and improving the combustion efficiency.

[0014] Preferably, a fire outlet opening is provided on the upper edge, which corresponds one-to-one with the fire outlet grooves and is used for the flame to eject.

[0015] The technical solution adopted by the present invention to solve the above-mentioned second technical problem is: a gas stove using the above-mentioned gas burner includes a panel, an ignition needle, a thermocouple and a liquid receiving pan, the above-mentioned panel is provided with an opening for installing the above-mentioned gas burner, and is characterized in that the liquid receiving pan is arranged on the panel and covers the above-mentioned opening, the above-mentioned ignition needle and the thermocouple are respectively inserted into the opening and the ignition needle and the thermocouple are vertically penetrated on the above-mentioned liquid receiving pan, and the bottom of each outer ring ejector tube is fixed with a supporting foot, and each supporting foot is respectively supported at a corresponding position of the above-mentioned liquid receiving pan; and it also includes a nozzle seat, the top of the nozzle seat is provided with nozzles corresponding to each outer ring ejector tube, and the bottom of the nozzle seat is provided with a gas connector for connecting the gas pipe, and the gas connector is inserted into the mounting hole opened in the above-mentioned liquid receiving pan.

[0016] Compared with the prior art, the advantages of the present invention are: the outer ring gas mixing chamber of the present invention is divided into at least two gas mixing sub-chambers along the circumferential direction, and each gas mixing sub-chamber is respectively connected to an outer ring ejector tube, that is, each gas mixing sub-chamber ejects the airflow through an independent outer ring ejector tube, thereby enhancing the ejection capacity of the outer ring in the gas burner. In the gas stove of the present invention, the burner is positioned on the liquid receiving tray by inserting the gas connector into the mounting hole, and is supported on the liquid receiving tray by supporting feet. In addition, the ignition needle and the thermocouple are penetrated on the burner, so the burner can be removed from the liquid receiving tray as a whole, and only the ignition needle and the thermocouple are left on the liquid receiving tray, which is convenient for cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of a burner in an embodiment of the present invention;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure in another direction;

[0019] Figure 3 for Figure 1 A schematic diagram of the structure in another direction;

[0020] Figure 4 for Figure 1 Cross-sectional view along AA direction;

[0021] Figure 5 for Figure 1Cross-sectional view along direction BB;

[0022] Figure 6 This is a structural exploded view of a burner in an embodiment of the present invention;

[0023] Figure 7 A schematic diagram of the structure of a gas stove in an embodiment of the present invention;

[0024] Figure 8 for Figure 7 The enlarged view of part I;

[0025] Fig. 9 It is a partial structural exploded view of a gas stove in an embodiment of the present invention;

[0026] Fig.10 for Fig. 9 The partial structural decomposition diagram of the middle part II;

[0027] Fig.11 A schematic diagram of the structure of the nozzle holder in an embodiment of the present invention;

[0028] Fig.12 for Fig.11 A schematic diagram of the structure in another direction;

[0029] Fig.13 for Fig.11 A schematic diagram of the structure in another direction;

[0030] Fig.14 It is a structural exploded view of the nozzle holder in the embodiment of the present invention;

[0031] Fig.15 for Fig.14 Schematic diagram of the structure in another direction. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below with reference to the accompanying drawings.

[0033] like Figures 1 to 15 As shown, a gas stove comprises a panel 81, a gas burner 100, an ignition needle 84, a thermocouple 83 and a liquid receiving pan 82. The panel 81 is provided with an opening 811 for installing the gas burner 100, the liquid receiving pan 82 is arranged on the panel 81 and covers the opening 811, the liquid receiving pan 82 is provided with a mounting hole 821a at the portion of the liquid receiving pan 82 that covers the opening 811, the ignition needle 84 and the thermocouple 83 are respectively inserted into the opening 811, and the ignition needle 84 and the thermocouple 83 are vertically penetrated on the liquid receiving pan 82.

[0034] The gas burner 100 comprises an annular cover plate 11 and an annular outer ring base 12, wherein the outer ring base 12 comprises an annular bottom wall 121, wherein the inner side edge of the annular bottom wall 121 extends vertically upward to form an inner side wall 122, wherein the top of the inner side wall 122 is provided with internal and external fire outlet grooves 122a spaced apart in the circumferential direction. The cover plate 11 comprises an annular wall 110 extending inwardly from bottom to top, wherein the lower side edge of the annular wall 110 extends vertically downward to form a lower edge 112, and the upper side edge of the annular wall 110 extends inwardly and upwardly to form an upper edge 111, wherein the cover plate 11 is covered on the outer ring base 12 to form an annular outer ring gas mixing chamber 10, wherein the upper edge 111 is covered on the fire outlet groove 111a to form the outer ring fire outlet hole 4, and the lower edge 112 is placed on the outer side edge of the annular bottom wall 121. Furthermore, the inner side of the top of the inner side wall 122 has an inner annular surface 120 extending downward from the outside to the inside along the circumferential direction, and the extension direction of the above-mentioned ignition groove 111a is inclined in the same direction along the circumferential direction.

[0035] The opening 811 of the above-mentioned fire outlet groove 111a is on the inner ring surface 120, and the extension direction of the above-mentioned fire outlet groove 111a is inclined in the same direction along the circumferential direction, so that the outer ring fire outlet hole 4 surrounded by each fire outlet groove 111a and the above-mentioned upper edge 111 is inclined in the same direction along the circumferential direction on the above-mentioned inner ring surface 120, so that an inner rotating fire structure can be formed on the outer ring, thereby increasing the contact area between the flame and the bottom of the pot and improving the combustion efficiency. In order to make the combustion flame eject better, a fire outlet 122a corresponding to the above-mentioned fire outlet groove 122a and for the flame to eject is opened on the upper edge 111.

[0036] An inner ring base 6 with an open top is arranged at the inner center of the outer ring base 12. In this embodiment, the inner ring base 6 is a cylindrical structure with a bottom, and an inner ring fire cover 5 is provided at its opening 811, and the outer ring base 12 is arranged on the periphery with the inner ring base 6 as the center.

[0037] Four triangular partition blocks 123 are protruding upward on the annular bottom wall 121, thereby dividing the outer ring mixing chamber 10 into four mixing chambers, and each mixing chamber is connected to an outer ring ejector tube 2. Compared with the prior art in which the outer ring mixing chamber 10 is connected to a total outer ring ejector tube 2, the present invention can significantly enhance the ejection capacity of the outer ring in the gas burner 100. Furthermore, in order to improve the ejection capacity of each outer ring ejector tube 2, each outer ring ejector tube 2 is arranged to be tilted inward and downward relative to the outer ring mixing chamber 10, and the air inlet port 201 of each outer ring ejector tube 2 converges inward, so that the length of each outer ring ejector tube 2 can be extended to the maximum extent, thereby ensuring its ejection capacity to the maximum extent. Specifically, the air inlet ports 201 of each outer ring ejector tube 2 converge with the central axis of the outer ring gas mixing chamber 10 as the center, and the projection of the extension direction of each outer ring ejector tube 2 on the circle where the outer ring gas mixing chamber 10 is located is eccentrically arranged relative to the circle where the outer ring gas mixing chamber 10 is located. In this way, the airflow ejected from each outer ring ejector tube 2 can have a certain tangential velocity relative to the outer ring gas mixing chamber 10, which is beneficial to the uniformity of the flame.

[0038] In the prior art, the outer ring ejector tube 2 and the inner ring ejector tube 3 are independently arranged. The burner 100 in the present application also includes an inner ring gas mixing chamber 60 and an inner ring ejector tube 3, wherein the inner ring gas mixing chamber 60 is formed by the inner ring fire cover 5 and the inner ring base 6, and the air inlet port 301 of the inner ring ejector tube 3 is connected to any one of the above-mentioned gas mixing chambers, and its gas outlet port 302 is connected to the above-mentioned inner ring gas mixing chamber 60. Not only can the structure of the burner 100 be compact and the volume be small, but also the inner ring can be ejected twice, thereby significantly improving the ejection performance and obtaining a better ejection effect. Among the above-mentioned gas mixing chambers, three of the gas mixing chambers are close in size, and the volume of the gas mixing chamber connected to the inner ring ejector tube 3 is smaller than that of other gas mixing chambers. In this way, on the basis of ensuring the combustion requirements of the inner ring fire, the combustion efficiency of the outer ring and the uniformity of the flame combustion are maximized. In addition, the inner ring gas mixing chamber 60 is arranged above the convergence point of the air inlet ports 201 of the outer ring ejector tubes 2. Such a design can make the overall structure of the burner 100 more compact and further reduce its volume. The top of the air inlet end of each outer ring ejector tube 2 is respectively fixed to the bottom of the inner ring base 6, so that the burner 100 forms an integrated structure, which is convenient for processing and assembly.

[0039] The gas stove of the present invention further comprises a nozzle seat 7, which is arranged below the inner ring base 6. Four nozzles 70 corresponding to the outer ring ejection tubes 2 are arranged on the top of the nozzle seat 7, that is, each nozzle 70 is respectively opposite to the air inlet port 201 of each outer ring ejection tube 2. In order to avoid mutual interference between the airflows ejected from the adjacent nozzles 70, in this embodiment, a partition ring wall 76 is arranged between the adjacent nozzles 70. Further, the nozzle seat 7 comprises an upper cap body 71 and a lower seat body 72. The nozzles 70 are arranged on the top of the cap body 71, and a limited cap brim 713 is formed at the lower part, and an upper gas chamber 710 with a downward opening 811 is formed inside. The seat body 72 has a truncated cone shape, a gas joint is arranged at the bottom, and a lower gas chamber 720 with an upward opening 811 is formed inside. When the cap body 71 is covered on the seat body 72, the upper gas chamber 710 and the lower gas chamber 720 are combined to form an outer ring gas chamber. During installation, the gas connector is inserted into the installation hole 821a to facilitate its connection with the gas pipe inside the gas stove, and the limiting cap edge 713 is limited on the edge of the installation hole 821a to achieve the limitation of the nozzle seat 7 in the installation hole 821a.

[0040] In this way, during assembly, the gas connector of the nozzle seat 7 is inserted into the mounting hole 821a, and the burner 100 is supported on the liquid receiving tray 82 through the supporting feet 21. The ignition needle 84 and the thermocouple 83 respectively pass through the gap between the corresponding outer ring ejector tubes 2, so that the gas burner 100 can be positioned and installed on the panel 81, with accurate positioning and convenient and quick assembly. When cleaning, it is only necessary to remove the gas burner 100 to expose the corresponding part of the liquid receiving tray 82, which is convenient for cleaning. In order to further facilitate the cleaning of the gas stove, in this embodiment, the liquid receiving tray 82 is flat as a whole, and further, a mounting boss 821 matching the above-mentioned base is convexly provided at the center thereof, and the upper ignition needle 84 and the thermocouple 83 are respectively penetrated on the mounting boss 821, and the above-mentioned mounting hole 821a is opened on the mounting boss 821, and the gas burner 100 is aligned with the mounting boss 821 when installed. In addition, the periphery of the liquid receiving plate 82 protrudes upward to form a liquid blocking flange 822 , and the liquid blocking flange 822 and the mounting boss 821 form a liquid receiving annular groove 823 .

[0041] In order to make the flames on the outer ring and the inner ring burn more evenly, the gas joint includes an outer ring gas joint 74 and an inner ring gas joint 73, which are used to connect the outer ring gas pipe (not shown) and the inner ring gas pipe (not shown) respectively. The outer ring gas joint 74 is in communication with the outer ring gas cavity, wherein three nozzles 70 are in communication with the outer ring gas cavity, and the three nozzles 70 correspond to the outer ring ejector pipe 2 which is not in communication with the inner ring ejector pipe 3. In addition, the cap body 71 and the seat body 72 are also assembled to form an inner ring gas cavity, the inner ring gas joint 73 is in communication with the inner ring gas cavity, and the remaining nozzle 70 is in communication with the inner ring gas cavity, and the nozzle 70 is used to correspond to the outer ring ejector pipe 2 which is in communication with the inner ring ejector pipe 3. The inner ring gas cavity is composed of an upper gas cavity 711 with an opening downwardly formed with the cap body 71 and a lower gas cavity 721 with an opening upwardly formed on the seat body 72, which is assembled from top to bottom.

Claims

1. A gas burner with strong ejection force, characterized in that: It comprises an annular outer ring gas mixing chamber (10), the outer ring gas mixing chamber (10) being divided into at least two gas mixing sub-chambers along the circumferential direction, each gas mixing sub-chamber being connected to an outer ring ejector pipe (2); Each of the outer ring ejector tubes (2) is arranged in an inwardly inclined manner downward relative to the outer ring gas mixing chamber (10), and the air inlet ports (201) of each of the outer ring ejector tubes (2) converge inwardly; The air inlet ports (201) of the outer ring ejector tubes (2) converge with the central axis of the outer ring gas mixing chamber (10) as the center, and the projection of the extension direction of each outer ring ejector tube (2) on the circle where the outer ring gas mixing chamber (10) is located is eccentrically arranged relative to the circle where the outer ring gas mixing chamber (10) is located; It also includes an inner ring gas mixing chamber (60) and an inner ring ejector tube (3), wherein the gas inlet port (301) of the inner ring ejector tube (3) is in communication with any one of the above-mentioned gas mixing chambers, and the gas outlet port (302) of the inner ring gas mixing chamber (60) is in communication with the above-mentioned inner ring gas mixing chamber (60); The invention comprises an annular cover plate (11) and an annular outer ring base (12), wherein the outer ring base (12) comprises an annular bottom wall (121), the inner edge of the annular bottom wall (121) extends vertically or obliquely upward to form an inner wall (122), and the top of the inner wall (122) is provided with ignition grooves (122a) penetrating inside and outside at intervals along the circumferential direction; The cover plate (11) comprises an annular wall (110) extending inwardly from bottom to top, the lower side edge of the annular wall (110) is inclined or vertically extended downward to form a lower edge (112), and the upper side edge of the annular wall (110) is inclined inwardly and upwardly extended to form an upper edge (111). The cover plate (11) is covered on the above-mentioned outer ring base (12) to enclose the above-mentioned outer ring gas mixing chamber (10), the above-mentioned upper edge (111) is covered on the above-mentioned fire outlet groove (122a) to form an outer ring fire outlet hole (4), and the above-mentioned lower edge (112) is placed on the outer side edge of the annular bottom wall (121).

2. The gas burner according to claim 1, characterized in that: The volume of the gas mixing sub-chamber connected to the inner ring ejector tube (3) is smaller than that of other gas mixing sub-chambers.

3. The gas burner according to claim 1, characterized in that: The inner ring gas mixing chamber (60) is arranged above the converging point of the gas inlet ports (201) of the outer ring ejector tubes (2).

4. The gas burner according to claim 1, characterized in that: The inner side of the top of the inner side wall (122) has an inner annular surface (120) extending downwardly from the outside to the inside along the circumferential direction, and the ignition groove (122a) opens on the inner annular surface (120) and is inclined in the same direction along the circumferential direction.

5. The gas burner according to claim 4, characterized in that: The upper edge (111) is provided with a fire outlet (111a) which corresponds one-to-one with the fire outlet groove (122a) and is used for the flame to be ejected.

6. A gas stove using the gas burner according to any one of claims 1 to 5, comprising a panel (81), an ignition needle (84), a thermocouple (83) and a liquid receiving pan (82), wherein the panel (81) is provided with an opening (811) for installing the gas burner (100), characterized in that: The liquid receiving pan (82) is arranged on the panel (81) and covers the opening (811); the ignition needle (84) and the thermocouple (83) are respectively inserted into the opening (811) and the ignition needle (84) and the thermocouple (83) are vertically penetrated on the liquid receiving pan (82); the bottom of each outer ring ejector tube (2) is fixed with a supporting foot (21), and each supporting foot (21) is respectively supported at a corresponding position of the liquid receiving pan (82); Furthermore, it comprises a nozzle seat (7), the top of which is provided with nozzles (70) corresponding to the outer ring ejector tubes (2), and the bottom of the nozzle seat (7) is provided with a gas connector for connecting to a gas pipe, the gas connector being inserted into a mounting hole (821a) provided in the above-mentioned liquid receiving tray (82).

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