CN110762523A - Gas burner with strong injection force and gas stove with burner - Google Patents

Abstract

The invention relates to a gas burner with strong ejection force, which is characterized in that it comprises an annular outer ring gas mixing cavity, the outer ring gas mixing cavity is divided into at least two gas mixing sub-cavities in the circumferential direction, and each gas mixing The cavity is respectively connected with an outer ring ejector tube; and also relates to a gas stove. In the present invention, the outer ring gas-mixing cavity is divided into at least two gas-mixing sub-cavities along the circumferential direction, and each gas-mixing sub-cavity is respectively connected with an outer-ring ejector tube, that is, each gas-mixing sub-cavity passes through an independent outer ring The ejector tube is used to eject the airflow, thereby enhancing the ejection capability of the outer ring in the gas burner. In the gas stove of the present invention, the burner is inserted into the installation hole through the gas connector to realize the positioning on the liquid-receiving pan, and is supported on the liquid-receiving pan by the supporting feet. In addition, the ignition needle and the thermocouple are pierced on the burner Therefore, the burner can be removed from the liquid-receiving pan as a whole, and only the ignition needle and the thermocouple are left on the liquid-receiving pan at this time, which is convenient for cleaning.

Description

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

technical field

The invention relates to the field of gas stoves, in particular to a gas burner with strong ejection force and a gas stove that should have the burner.

Background technique

Existing gas burners are generally provided with inner and outer ring fire covers, and correspondingly, the gas stove is equipped with inner and outer ring ejection pipes corresponding to the inner and outer ring fire covers respectively. Due to the limitation of its own structure, the traditional top-inlet gas burner generally has the problem of insufficient ejection force. For example, the Chinese invention patent with application number 201711370764.X (publication number CN108036320A) discloses a top-mounted burner, which includes a fire cover, a middle plate and a base from top to bottom, and the middle plate and the base are installed and cooperated to form a small burner. The fire ejector tube and the main fire ejector tube are also provided with a small fire outlet pipe and a main fire outlet tube in the middle plate. The other end of the small fire ejection pipe and the main fire ejection pipe, that is, the intake end, are respectively connected to the gas interface. The middle plate and the fire cover are installed and cooperated to form a combustion chamber. The top surface of the fire cover is provided with a number of evenly distributed strip-shaped fire holes. In this patent, due to the structural limitation of the combustion chamber, the length of the main fire ejector tube is short, so that the ejection distance thereof is short and the ejection force thereof is affected.

The Chinese invention patent with the patent number of ZL201010270662 (authorized announcement number of CN101936548B) discloses an upper air inlet gas cooker, the burner base has a central ejection pipe, the upper surface of the burner base is provided with an annular groove, and the side is provided with air supply holes The bottom surface has feet and connects two side ejection tubes. The lower end surface of the outer ring fire cover has a circular ring channel, and the outer circumference has a fire hole. The center fire cover is erected in the center of the outer ring fire cover, and the bottom of the gas ejection base A central gas nozzle and a central gas interface are installed, and two nozzles are installed on the upper surface, which are respectively aligned with the inlets of the two side ejection pipes. In this patent, although the ejection force can be enhanced to a certain extent by arranging double-side ejector tubes, the arrangement of dual ejector tubes not only complicates the structure of the burner, but also restricts the further layout and arrangement of the burner structure. Conducive to the further improvement of the burner structure.

SUMMARY OF THE INVENTION

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 against the prior art.

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 against the prior art.

The technical solution adopted by the present invention to solve the above-mentioned first technical problem is: a gas burner with strong ejection force, which is characterized in that it includes an annular outer ring gas mixing cavity, and the outer ring gas mixing cavity is divided along the circumferential direction There are at least two air-mixing sub-chambers, each of which is respectively connected with an outer ring ejector tube.

In order to further improve the ejection capability of each outer ring ejector tube, each of the outer ring ejector tubes 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 inward. . In this way, the length of each outer ring ejector tube can be extended to the greatest extent, so as to ensure its ejection capacity to the greatest extent.

Further, the inlet ports of the outer ring ejector tubes are converged at the center of the central axis of the outer ring air-mixing cavity, and the projection of the extension direction of each outer-ring ejector tube on the circle where the outer ring air-mixing cavity is located is relative to the outer ring. The circle where the air mixing chamber is located is eccentrically arranged. In this way, the airflow ejected from each outer ring ejection tube can have a certain tangential velocity relative to the outer ring gas mixing chamber, which is beneficial to the uniformity of the flame.

Further, it also includes an inner ring air-mixing cavity and an inner-ring ejector tube, the inlet port of the inner-ring ejector tube is communicated with any one of the above-mentioned air-mixing sub-cavities, and its air outlet port is communicated with the above-mentioned inner-ring air-mixing chamber. Not only can the burner have a compact structure and a small volume, but also the inner ring can be ejected twice, thereby significantly improving the ejection performance and obtaining a better ejection effect.

Preferably, the volume of the air-mixing sub-cavities connected to the inner ring ejector tube is smaller than that of other air-mixing sub-chambers. In this way, on the basis of ensuring the combustion requirements of the inner ring, the combustion efficiency of the outer ring and the uniformity of flame combustion are maximized.

Preferably, the inner ring gas mixing chamber is arranged above the convergence of the air inlet ports of the above-mentioned outer ring ejection pipes. Such a design can further compact the overall structure of the burner and further reduce its volume.

Preferably, the burner in the present invention includes an annular cover plate and an annular outer ring base, the outer ring base includes an annular bottom wall, and the inner side edge of the annular bottom wall extends vertically or obliquely upward to form an inner side wall, The top of the inner side wall is spaced apart along the circumferential direction with fire outlet grooves extending through the inside and the outside; the cover plate includes a ring wall extending obliquely inward from bottom to top, and the lower side edge of the ring wall is inclined or extends vertically downward to A lower edge is formed, the upper edge of the ring wall is inclined inwardly and extends upward to form an upper edge, the cover plate is arranged on the outer ring base to enclose the outer ring gas mixing chamber, and the upper edge cover is arranged on the above-mentioned outlet. An outer ring fire outlet is formed on the groove, and the aforesaid lower edge rests on the outer edge of the annular bottom wall.

Further, the inner side of the top of the inner side wall has an inner ring surface extending downwardly from the outside to the inside along the circumferential direction, and the fire outlet groove is opened on the inner ring surface and is inclined in the same direction along the circumferential direction, so that it can be placed on the outer ring. An internal swirling fire structure is formed, thereby increasing the contact area between the flame and the bottom of the pot and improving the combustion efficiency.

Preferably, the upper edge is provided with a fire outlet that corresponds to the fire outlet grooves one-to-one and is used for the flame to be ejected.

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, comprising a panel, an ignition needle, a thermocouple and a liquid-receiving pan, and the above-mentioned panel is provided with a space for the above-mentioned gas combustion It is characterized in that the liquid-receiving pan is arranged on the panel and covers the opening, the ignition pin and the thermocouple are inserted into the opening respectively, and the ignition pin and the thermocouple are vertically penetrated on the liquid-receiving pan. The bottom of each outer ring ejection tube is fixed with support feet, and each support foot is supported at the corresponding position of the above-mentioned liquid-receiving pan; moreover, it also includes a nozzle seat, and the top of the nozzle seat is provided with each outer ring ejection tube. A corresponding nozzle, the bottom of the nozzle seat is provided with a gas joint for connecting the gas pipe, and the gas joint is inserted into the installation hole opened in the above-mentioned liquid-receiving pan.

Compared with the prior art, the present invention has the advantages that: in the present invention, the outer ring gas-mixing cavity is divided into at least two gas-mixing sub-cavities along the circumferential direction, and each gas-mixing sub-cavity is respectively connected with an outer-ring ejector tube , that is, each gas mixture sub-chamber injects airflow through an independent outer ring ejector tube, thereby enhancing the ejection capability of the outer ring in the gas burner. In the gas stove of the present invention, the burner is inserted into the installation hole through the gas connector to realize the positioning on the liquid-receiving pan, and is supported on the liquid-receiving pan by the supporting feet. In addition, the ignition needle and the thermocouple are pierced on the burner Therefore, the burner can be removed from the liquid-receiving pan as a whole, and only the ignition needle and the thermocouple are left on the liquid-receiving pan at this time, which is convenient for cleaning.

Description of drawings

1 is a schematic structural diagram of a burner in an embodiment of the present invention;

Fig. 2 is the structural representation of another direction of Fig. 1;

Fig. 3 is the structural representation of another direction of Fig. 1;

Fig. 4 is the sectional view along the A-A direction of Fig. 1;

5 is a cross-sectional view of FIG. 1 along the B-B direction;

6 is an exploded view of the structure of the burner in the embodiment of the present invention;

7 is a schematic structural diagram of a gas stove in an embodiment of the present invention;

Fig. 8 is an enlarged view of part I in Fig. 7;

9 is an exploded view of a partial structure of a gas stove in an embodiment of the present invention;

Fig. 10 is a partial structure exploded view of part II in Fig. 9;

11 is a schematic structural diagram of a nozzle holder in an embodiment of the present invention;

FIG. 12 is a schematic structural diagram of FIG. 11 in another direction;

FIG. 13 is a schematic structural diagram of FIG. 11 in another direction;

14 is an exploded view of the structure of the nozzle holder in the embodiment of the present invention;

FIG. 15 is a schematic view of the structure of FIG. 14 in another direction.

Detailed ways

The present invention will be further described in detail below with reference to the embodiments of the accompanying drawings.

As shown in FIGS. 1-15 , a gas stove includes a panel 81 , a gas burner 100 , an ignition needle 84 , a thermocouple 83 and a liquid-receiving pan 82 . The above-mentioned panel 81 is provided with an opening 811 for installing the above-mentioned gas burner 100, the above-mentioned liquid-receiving pan 82 is arranged on the panel 81 and covers the above-mentioned opening 811, and the liquid-receiving plate 82 is opened at the part of the above-mentioned opening 811 that covers the above-mentioned opening 811. There is a mounting hole 821a, the ignition needle 84 and the thermocouple 83 are inserted into the opening 811 respectively, and the ignition needle 84 and the thermocouple 83 are vertically penetrated on the liquid receiving plate 82 .

The above-mentioned gas burner 100 includes an annular cover plate 11 and an annular outer ring base 12, the outer ring base 12 includes an annular bottom wall 121, and the inner edge of the annular bottom wall 121 extends vertically upward to form an inner side wall 122, The top of the inner side wall 122 is spaced apart along the circumferential direction with fire outlet grooves 122a penetrating inside and outside. The above-mentioned cover plate 11 includes a ring wall 110 extending obliquely inward from bottom to top, the lower side edge of the ring wall 110 extends vertically downward to form a lower edge 112, and the upper side edge of the ring wall 110 extends upward and obliquely An upper edge 111 is formed, the cover plate 11 is covered on the outer ring base 12 to form an annular outer ring gas mixing chamber 10, and the upper edge 111 is covered on the above-mentioned fire outlet groove 111a to form the above-mentioned outer ring fire outlet For the hole 4, the above-mentioned lower edge 112 rests on the outer edge of the annular bottom wall 121. Further, the inner side of the top of the inner side wall 122 has an inner annular surface 120 extending downwardly and inclined from the outside to the inside along the circumferential direction.

The opening 811 of the fire outlet groove 111a is on the inner annular surface 120, and the extension direction of the fire outlet groove 111a is inclined in the same direction along the circumferential direction, so that each fire outlet groove 111a and the outer ring fire outlet hole surrounded by the upper edge 111 are formed. 4. The above-mentioned inner ring surface 120 is inclined in the same direction along the circumferential direction, so that an inner whirling 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 better eject the combustion flame, the upper edge 111 is provided with a fire outlet 122a corresponding to the above-mentioned fire outlet grooves 122a one-to-one and for the flame to be ejected.

The inner center of the outer ring base 12 is provided with an inner ring base 6 with an open top. In this embodiment, the inner ring base 6 is a bottomed cylindrical structure, and the opening 811 is covered with an inner ring fire. The cover 5 is provided, and the outer ring base 12 is arranged around the outer circumference with the inner ring base 6 as the center.

The above-mentioned annular bottom wall 121 is protruded upwardly with four triangular partition blocks 123, so that the above-mentioned outer ring air-mixing cavity 10 is divided into four air-mixing sub-cavities, and each air-mixing sub-cavity is respectively connected with an outer ring ejector. Tube 2. Compared with the prior art in which the outer ring gas mixing chamber 10 is connected to a general outer ring ejection pipe 2, the present invention can significantly enhance the ejection capability of the outer ring of the gas burner 100. Further, in order to improve the ejection capability of each outer ring ejector tube 2, each outer ring ejector tube 2 is inclined inwardly and downwardly relative to the outer ring gas mixing chamber 10, and the air inlet port of each outer ring ejector tube 2 201 converges inwardly, so that the length of each outer ring ejector tube 2 can be extended to the greatest extent, so as to ensure its ejection capability to the greatest extent. Specifically, the 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 projections of the extending directions of the outer ring ejection tubes 2 on the circle where the outer ring gas mixing chamber 10 is located are opposite to each other. The outer ring gas mixing chamber 10 is eccentrically arranged in the circle. In this way, the airflow ejected from each outer ring ejection 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.

In the prior art, the outer ring ejection tube 2 and the inner ring ejection tube 3 are arranged independently. The burner 100 in this application further includes an inner ring gas mixing cavity 60 and an inner ring ejection tube 3, wherein the inner ring gas mixing cavity 60 It is composed of the above-mentioned inner ring fire cover 5 and the inner ring base 6. The air inlet port 301 of the inner ring ejection tube 3 is connected with any of the above-mentioned air mixing sub-chambers, and its air outlet port 302 is mixed with the above-mentioned inner ring. The air cavity 60 communicates. Not only can the burner 100 have a compact structure and a small volume, but also the inner ring can be ejected twice, thereby significantly improving the ejection performance and obtaining a better ejection effect. Among the above air-mixing sub-cavities, three of the air-mixing sub-chambers have similar sizes, and the volume of the air-mixing sub-chambers connected to the inner ring ejector tube 3 is smaller than that of the other air-mixing sub-chambers. In this way, on the basis of ensuring the combustion requirements of the inner ring, the combustion efficiency of the outer ring and the uniformity of 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 above-mentioned outer ring ejection pipes 2 . Such a design can further compact the overall structure of the burner 100 and further reduce its volume. The tops of the intake ends of the outer ring ejection tubes 2 are respectively fixed to the bottoms of the inner ring bases 6 , so that the burner 100 forms an integrated structure, which is convenient for processing and assembly.

The gas stove in the present invention further includes a nozzle holder 7, which is arranged below the inner ring base 6, and four nozzles 70 corresponding to the outer ring ejection tube 2 are arranged on the top of the nozzle holder 7 in one-to-one correspondence. That is, each nozzle 70 faces the intake port 201 of each outer ring ejection pipe 2 respectively. In order to avoid mutual interference between the airflows ejected from the adjacent nozzles 70 , in this embodiment, a partition ring wall 76 is provided between the adjacent nozzles 70 . Further, the nozzle holder 7 includes an upper cap body 71 and a lower base body 72, the top of the cap body 71 is provided with the above-mentioned nozzle 70, the lower part is formed with a limiting cap rim 713, and an upper gas chamber with a downward opening 811 is formed inside. 710. The outer shape of the base body 72 is in the shape of a truncated cone, the bottom of which is provided with a gas connector, and a lower gas cavity 720 with an upward opening 811 is formed inside. When the cap body 71 is covered on the base 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 above-mentioned gas connector is inserted into the above-mentioned installation hole 821a, so as to facilitate its connection with the gas pipe inside the gas stove, and the above-mentioned limit cap 713 is limited on the hole edge of the installation hole 821a, so that the nozzle seat 7 is located in the installation hole. Limits in 821a.

In this way, during assembly, the gas connector of the nozzle holder 7 is inserted into the installation hole 821a, the burner 100 is supported on the liquid-receiving pan 82 by the supporting feet 21, and the ignition needle 84 and the thermocouple 83 respectively pass through the corresponding outer ring The gap between the ejection tubes 2 can realize the positioning and installation of the gas burner 100 on the panel 81 , the positioning is accurate, the assembly is convenient and quick, and the gas burner 100 only needs to be removed to expose the corresponding part of the liquid receiving plate 82 when cleaning. That's it, easy to clean. In order to further facilitate the cleaning of the gas stove, in this embodiment, the liquid receiving plate 82 is in the shape of a flat plate as a whole, and further, a mounting boss 821 matching the above-mentioned base is protruded at the center thereof, and the ignition needle 84 and the thermoelectric The couplers 83 respectively pass through the mounting bosses 821 , the above-mentioned mounting holes 821 a are opened on the mounting bosses 821 , and the gas burner 100 is installed in alignment with the mounting bosses 821 . In addition, the peripheral edge 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 enclose a liquid receiving ring groove 823 .

In order to make the flames on the outer ring and the inner ring burn more evenly, the above-mentioned gas joints include an outer ring gas joint 74 and an inner ring gas joint 73, which are respectively used to connect the outer ring gas pipe. (not shown) and inner ring gas pipe (not shown). The outer ring gas joint 74 communicates with the above-mentioned outer ring gas cavity, wherein three nozzles 70 are communicated with the outer ring gas cavity, and the three nozzles 70 are respectively connected with the outer ring ejection pipe 2 which is not communicated with the inner ring ejection pipe 3 Corresponding. In addition, the cap body 71 and the base body 72 are also assembled to form an inner ring gas cavity, the inner ring gas joint 73 communicates with the inner ring gas cavity, and the remaining nozzle 70 communicates with the inner ring gas cavity. Corresponding to the outer ring ejection tube 2 communicated with the inner ring ejection tube 3 . The inner ring gas chamber is formed by the upper gas chamber 711 formed with the opening of the cap body 71 facing downward and the lower gas chamber 721 formed on the base body 72 with the opening facing upwards.

Claims (10)

1. A gas burner with strong ejection force, characterized in that it comprises an annular outer-ring gas-mixing cavity (10), and the outer-ring gas-mixing cavity (10) is divided into at least two gas-mixing sub-cavities in the circumferential direction , and an outer ring ejector tube (2) is respectively connected to each gas-mixing sub-chamber. 2 . The gas burner according to claim 1 , wherein each of the outer ring injection pipes ( 2 ) is inclined downward relative to the outer ring gas mixing chamber ( 10 ), and each outer ring leads The intake port (201) of the shot pipe (2) converges inward. 3. The gas burner according to claim 2, characterized in that, the central axis of the outer ring gas mixture cavity (10) of each of the outer ring injection pipes (2) is converged at the center of the inlet port (201), and each The projection of the extension direction of the 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. 4. The gas burner according to claim 2, characterized in that it further comprises an inner ring gas mixing chamber (60) and an inner ring ejector pipe (3), the air inlet port of the inner ring ejector pipe (3) (301) is communicated with any one of the above-mentioned air-mixing sub-chambers, and its air outlet port (302) is communicated with the above-mentioned inner ring air-mixing chamber (60). 5. The gas burner according to claim 4, characterized in that the volume of the gas mixture sub-cavities connected to the inner ring ejector (3) is smaller than that of other gas mixture sub-cavities. 6 . The gas burner according to claim 4 , wherein the inner ring gas mixing chamber ( 60 ) is arranged at the convergence of the air inlet ports ( 201 ) of the outer ring injection pipes ( 2 ). 7 . above. 7. The gas burner according to any one of claims 1 to 6, characterized in that it comprises an annular cover plate (11) and an annular outer ring base (12), the outer ring base (12) comprising An annular bottom wall (121), the inner side edge of the annular bottom wall (121) extends vertically or obliquely upward to form an inner side wall (122), the top of the inner side wall (122) is spaced apart along the circumferential direction with a fire outlet penetrating through the inside and outside slot (122a); The cover plate (11) comprises a ring wall (110) which is inclined and extended inward from bottom to top, and the lower side edge of the ring wall (110) is inclined or extends vertically downward to form a lower edge (112). The upper side edge of (110) is inclined inward and extends upward to form an upper edge (111). The upper edge (111) is covered on the fire outlet groove (122a) to form an outer ring fire outlet hole (4), and the lower edge (112) rests on the outer edge of the annular bottom wall (121). 8 . The gas burner according to claim 7 , wherein the inner side of the top of the inner side wall ( 122 ) has an inner annular surface ( 120 ) inclined downwardly extending from the outside to the inside along the circumferential direction, and the fire outlet concave The groove (122a) is opened on the inner annular surface (120) and is inclined in the same direction along the circumferential direction. 9. The gas burner according to claim 8, wherein the upper edge (111) is provided with a fire outlet (111a) corresponding to the fire outlet groove (122a) one-to-one and for the flame to be ejected ). 10. A gas stove to which the gas burner according to any one of claims 1 to 9 is applied, comprising a panel (81), an ignition needle (84), a thermocouple (83) and a liquid-receiving pan (82), the above-mentioned 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 above-mentioned 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 above-mentioned liquid-receiving plate (82), and each outer ring leads to the opening (811). Support feet (21) are fixed on the bottom of the injection tube (2), and each support foot (21) is respectively supported at the corresponding position of the above-mentioned liquid receiving tray (82); Moreover, it also includes a nozzle holder (7), the top of the nozzle holder (7) is provided with nozzles (70) corresponding to each of the outer ring ejection tubes (2) one-to-one, and the bottom of the nozzle holder (7) is provided with a gas pipe for connecting The gas connector is inserted into the installation hole (821a) opened in the liquid receiving pan (82).

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