JP7454999B2 - Conlovana - Google Patents

Description

The present invention relates to a stove burner that cooks food in a cooking container by burning a mixed gas of fuel gas and air.

Stove burners, which cook food in a cooking container by burning fuel gas, are widely used. A stove burner consists of a burner body to which a mixture of fuel gas and air is supplied, and a plurality of flame grooves radially formed on the annular lower end surface, and is placed on top of the burner body. A burner head that forms a plurality of flame ports between it and the mounting surface of the burner body, a mixing tube that is connected to the burner body on one end and has an opening on the other end, and It is equipped with an injection nozzle that injects fuel gas toward the fuel gas. Then, when fuel gas is injected from the injection nozzle toward the opening, the injected fuel gas flows into the mixing tube while drawing in surrounding air, mixes with air inside the mixing tube, and is then supplied to the burner body. . The mixed gas of fuel gas and air thus supplied to the burner body is ejected to the outside from multiple flame ports formed between the burner body and the burner head, and when this mixed gas is ignited, the generated flame The fire spreads to the adjacent fire pit. As a result, combustion of the mixed gas is started at all the flame ports, making it possible to cook the food.

In such a stove burner, if spillage occurs during cooking, the spilled liquid may get onto the burner head and burner body, blocking the flame opening. Moreover, if the boiling liquid spreads through the mounting surface of the burner body to distant flame ports, many of the flame ports may become blocked. This is particularly likely to happen if the concentration of the spilled broth is low. For this reason, even when boiling water, if the hot water spills over, many of the flame openings may become blocked. If many of the flame ports become blocked while the mixed gas is being combusted in the stove burner, the flame will flow backwards inside the stove burner's mixing tube, causing flames to blow out from the opening at the end of the mixing tube. (called a blowout) may occur. If backflow occurs, the inside of the gas stove (for example, the back side of the top plate) may be scorched by the ejected flames, potentially causing damage to the gas stove.

Therefore, a temperature sensor is installed near the opening at the end of the mixing pipe of the stove burner, and when it detects that the temperature has risen, it determines that flame is spewing out from the opening due to back injection, and fuel A technique has been proposed in which the supply of gas is stopped (Patent Document 1).

JP2003-028428A

However, in order to deal with back injection, a temperature sensor is installed, and the occurrence of back injection is detected based on the output of the temperature sensor, and when back injection is detected, the supply of fuel gas is stopped. The flame at the fire pit goes out. For this reason, when attempting to continue cooking, it is necessary to clean the flame port to unclog it and then relight it, which is troublesome.

This invention was made to solve the above-mentioned problems of the conventional technology, and provides a stove burner that can eliminate back injection and continue cooking without relighting. The purpose is to

In order to solve the above-mentioned problems, the stove burner of the present invention has the following configuration. That is,
A mixing tube in which a mixed gas of fuel gas and air is formed; a burner body to which the mixed gas is supplied from the mixing tube and having an annular mounting surface formed on the upper surface; A burner in which a plurality of burner grooves are formed on a lower end surface of a wall, and a plurality of burner ports are formed in an outer peripheral side surface of the cylindrical wall by being placed on a mounting surface of the burner body. A cooking stove burner that cooks food in a cooking container by ejecting and burning mixed gas from the plurality of flame ports,
The mixing tube has an opening formed at an end of the tube that is not connected to the burner body, and a mixed gas is formed by mixing the fuel gas and air that flowed in from the opening.
a collision wall provided at a position opposite to the opening of the mixing tube and with which the jetted flame collides when the mixed gas flame jets out from the opening; and a collision wall located above the collision wall. an upper wall extending in the direction of the burner body so as to guide the flame that collides with the collision wall in the direction of the burner body; and an upper wall extending from a position on both sides of the collision wall toward the burner body. a flame guide having a side wall extending to guide the flame colliding with the collision wall in the direction of the burner body ;
The upper wall has a shape in which an end on the burner body side extends in the direction of the burner body.
It is characterized by

In the stove burner of the present invention, a mixed gas of fuel gas and air is formed inside the mixing tube, and the mixed gas is surrounded by the mounting surface of the burner body and the flame opening groove of the burner head. By ejecting and burning from the plurality of flame ports formed, the food in the cooking container is heated and cooked. The mixing tube has an opening at the end of the tube that is not connected to the burner body, and fuel gas and air flow into the mixing tube from the opening. However, if a plurality of flame ports are blocked by boiling liquid or the like during cooking, the flame may flow backwards and the flame may blow out from the opening of the mixing tube (so-called back-spraying). Therefore, in the stove burner of the present invention, a flame guide is mounted on the opening side of the mixing pipe. This flame guide is provided with a collision wall at a position opposite to the opening, with which the flames ejected from the opening collide, and a collision wall extending from a position above the collision wall in the direction of the burner body. There are also provided an upper wall with a curved shape and side walls extending in the direction of the burner body from positions on both sides of the impingement wall. The upper wall has a shape in which the end portion on the burner body side extends in the direction of the burner body.

In this way, even if multiple flame openings are blocked by spilled juice and back jet occurs, the flames ejected from the openings will collide with the colliding wall and change direction , resulting in the flames hitting the upper and side walls. be guided. The upper wall and the side wall extend in the direction of the burner body, and the end of the upper wall on the burner body side has a shape extending in the direction of the burner body. Therefore, the flame that collides with the collision wall and changes its direction is guided toward the burner body by the upper wall and the side wall , thereby heating the burner body. As a result, the temperature of the mounting surface and the burner head groove increases, promoting the evaporation of the boiling liquid that is clogging the flame nozzle, which unblocks the flame nozzle and restores normal combustion. As a result, backflow can be naturally resolved. Furthermore, since the opening of the mixing tube is surrounded by the collision wall, upper wall, and side wall of the flame guide, there is no possibility that the inside of the gas stove will be damaged by back-sprayed flames. Furthermore, even if back injection occurs, it is possible to eliminate the back injection without stopping the supply of fuel gas to the burner (therefore, while cooking continues). Therefore, if you want to continue cooking even after back-splash has occurred, you have to remove the cause of the back-splash by cleaning the flame outlet groove, etc., and then restart the ignition to restart the fuel gas supply. No longer needed.

Furthermore, in the stove burner of the present invention described above, the flame guide may have an open bottom surface.

In this way, air can be supplied from below the flame guide toward the opening of the mixing tube. Therefore, even if a flame guide is installed, the amount of air supplied to the mixing tube does not decrease, making it possible to generate a mixed gas in which fuel gas and air are mixed at an appropriate ratio in the mixing tube. becomes.

Further, in the stove burner of the present invention described above, the collision wall of the flame guide may be formed parallel to the opening of the end of the mixing tube.

Since an upper wall and side walls are formed above and on both sides of the collision wall, air flowing into the opening of the mixing tube is mainly supplied from below the flame guide. Therefore, if the collision wall provided opposite the opening of the mixing tube is tilted so that the lower part of the collision wall approaches the opening, the flow of air flowing into the opening of the mixing tube will be obstructed. It becomes difficult to supply an adequate flow rate of air into the mixing tube. Conversely, if the collision wall is tilted so that the lower part of the collision wall moves away from the opening of the mixing tube, when back jet occurs and flames are ejected from the opening, the flame that collided with the collision wall will be directed downward by the collision wall. You will be guided to As a result, the flame may leak out of the flame guide and cause damage to the gas stove. On the other hand, if the collision wall of the flame guide is formed parallel to the opening of the mixing tube, the flow of air supplied to the mixing tube will not be obstructed, and back injection will not occur. When flames occur, the flames that collide with the collision wall can change direction and be reliably guided toward the burner body by the upper and side walls . Therefore, it is possible to prevent the flame from leaking out of the flame guide and damaging the gas stove.

FIG. 2 is an explanatory diagram showing a state in which a stove burner 10 according to the present embodiment is mounted on a gas stove 1. FIG. FIG. 2 is a cross-sectional view showing the structure of the stove burner 10 by cutting the stove burner 10 in the longitudinal direction at a temperature sensor 18. FIG. FIG. 3 is an explanatory diagram showing the external shape of the flame guide 30 of this embodiment. FIG. 3 is an explanatory diagram showing the reason why back injection is naturally eliminated by the flame guide 30 of this embodiment. 7 is an explanatory diagram showing the reason why the collision wall 31 is formed parallel to the opening 15a of the mixing tube 15 in the flame guide 30 of this embodiment. FIG. It is an explanatory view showing an external shape of a flame guide 30 of a first modification. FIG. 7 is an explanatory diagram showing the external shape of a flame guide 30 according to a second modification.

FIG. 1 is an explanatory diagram showing a state in which a stove burner 10 of this embodiment is mounted on a gas stove 1. As shown in FIG. As illustrated, the gas stove 1 includes a top plate 2 made of glass or metal, and the top plate 2 is formed with a burner opening 2a (see FIG. 2), which will be described later. The stove burner 10 is mounted with its upper portion protruding from the burner opening 2a. Further, a trivet 3 is placed on the top plate 2 so as to surround a stove burner 10 protruding from the burner opening 2a.A cooking container such as a pot is placed on the trivet 3, and the bottom of the pot is covered with the stove burner 10. It is possible to heat it. Furthermore, a gap between the burner opening 2a and the stove burner 10 is closed with a burner ring 4.

The stove burner 10 includes a burner body 14, a burner head 11 placed on the burner body 14, a spark plug 16, and the like. Further, a wide annular burner cover 17 is attached to the upper part of the burner head 11, and a temperature sensor 18 is attached with the upper part protruding from a through hole in the center of the burner cover 17. As will be described later, a mixed gas in which fuel gas and air are mixed is supplied to the inside of the burner body 14. Further, the burner head 11 has a plurality of vertically elongated main flame ports 12 and a plurality of auxiliary flame ports 13 having a smaller opening area than the main flame ports 12, which are opened on the outer circumferential side of the cylindrical shape. In the example shown in FIG. 1, the main flame ports 12 and the auxiliary flame ports 13 are formed alternately, but they do not necessarily need to be formed alternately. For example, the auxiliary flame port 13 may be formed every time a plurality of main flame ports 12 are formed in succession. The mixed gas inside the burner body 14 is ejected from the main flame port 12 and the auxiliary flame port 13, and combustion is started by igniting this mixed gas with the ignition plug 16. The burner cover 17 has a function of preventing spilled liquid from entering the inside of the gas stove 1 in the event of boiling over from the cooking utensil during heating. Further, the temperature sensor 18 can measure the temperature of the cooking container by having its upper end surface contact the bottom surface of the cooking container.

FIG. 2 is a sectional view showing the structure of the stove burner 10 by cutting the stove burner 10 in the longitudinal direction at the temperature sensor 18 position. The burner body 14 of the stove burner 10 is formed by assembling two press-formed sheet metals facing each other in an airtight state. One sheet metal constitutes an outer circumferential wall 14a, and the other sheet metal constitutes an inner circumferential wall 14b, and a burner body chamber 14c is formed between the outer circumferential wall 14a and the inner circumferential wall 14b. Furthermore, a mixing pipe 15 is connected to the side surface of the burner body chamber 14c.

The mixing tube 15 is formed by assembling a part of the sheet metal forming the outer circumferential wall 14a and a part of the sheet metal forming the inner circumferential wall 14b in an airtight state so as to face each other. The unconnected tube end forms an opening 15a. Further, the burner body 14 has an annular mounting surface 14d formed by bending an upper end portion of the outer peripheral wall 14a inward. The burner head 11 is placed on this placement surface 14d.

The burner head 11 is a substantially annular component formed by forging or die-casting using a metal material such as an aluminum alloy or brass, and a cylindrical support cylinder 11b extends downward from the inner edge of the annular shape. It is protruded towards. Further, a cylindrical wall 11a is provided to protrude downward from the outer edge portion of the annular shape. A plurality of flame opening grooves, which will be described later, are radially bored in the lower end surface of the cylindrical wall 11a. In addition, the flame outlet groove is formed in a state in which a deeply bored flame outlet groove (hereinafter referred to as the main flame outlet groove 11c) and a shallowly bored flame outlet groove (hereinafter referred to as the auxiliary flame outlet groove 11d) coexist. has been done. The burner head 11 having such a shape has the cylindrical wall 11a of the burner head 11 mounted on the mounting surface 14d of the burner body 14 in a state where the support cylinder 11b of the burner head 11 is fitted to the inner peripheral wall 14b of the burner body 14. is placed. Then, the part surrounded by the main flame outlet groove 11c bored in the lower end surface of the cylindrical wall 11a and the mounting surface 14d and opened on the outer peripheral side of the cylindrical wall 11a becomes the main flame outlet 12, and the auxiliary flame outlet A portion surrounded by the groove 11d and the placement surface 14d and opened to the outer circumferential side of the cylindrical wall 11a becomes the auxiliary flame port 13. FIG. 2 shows an enlarged cross section of the cylindrical wall 11a at the main burner outlet groove 11c and the auxiliary burner outlet groove 11d.

A wide annular burner cover 17 is attached to the upper part of the burner head 11 using a mounting bracket (not shown). Furthermore, the upper part of a cylindrical temperature sensor 18 protrudes from a through hole formed at the center of the burner cover 17 . The temperature sensor 18 is attached to the upper end of a support pole 19 that passes through the center of the support cylinder 11b of the burner head 11, and the upper end of the temperature sensor 18 is attached to the top surface of the trivet 3 when no cooking container is placed on the trivet 3. It stands out more than that. Further, the upper part of the burner body 14 (the part where the mounting surface 14d is formed) protrudes from the burner opening 2a that is opened in the top plate 2, and the burner body 14 and the burner opening 2a are connected. The gap is closed with an annular burner ring 4.

Further, a gas pipe 20 to which fuel gas is supplied is provided at a position facing the opening 15a at the end of the mixing pipe 15, and an injection nozzle 21 for injecting fuel gas is attached to the tip of the gas pipe 20. . Then, when the fuel gas is injected from the injection nozzle 21 toward the inside of the mixing tube 15, the injected fuel gas flows into the inside of the mixing tube 15 while drawing in surrounding air due to the ejector effect. A mixed gas is formed by mixing the fuel gas and air. After the mixed gas thus formed passes through the burner body chamber 14c inside the burner body 14, it is ejected from the main flame port 12 and the auxiliary flame port 13, and combustion is started by igniting the mixed gas.

Further, a flame guide 30 is provided at a position outside the opening 15a when viewed from the mixing tube 15 so as to surround the opening 15a with a gap left from the opening 15a. The flame guide 30 is a member made of sheet metal, and a collision wall 31 is provided in parallel with the opening 15a at a position facing the opening 15a of the mixing tube 15, and from the upper side of the collision wall 31, the burner body 14 An upper wall 32 extends in the direction. Further, side walls 33 extend from both sides of the collision wall 31 toward the burner body 14 .

FIG. 3 is an explanatory diagram showing the external shape of the flame guide 30 when viewed from the direction indicated by arrow P in FIG. 2. As shown in FIG. As described above, the flame guide 30 is provided with the collision wall 31 at a position facing the opening 15a of the mixing tube 15, and the upper end of the collision wall 31 is bent horizontally to form the upper wall 32. There is. Further, both ends of the bent collision wall 31 are bent downward to form a side wall 33, and the side wall 33 and the collision wall 31 are in close contact with each other without any gap. Furthermore, a slit-shaped insertion hole 31a is formed in the collision wall 31 in a range from the lower end to the center. Therefore, it becomes possible to insert the gas pipe 20 into the insertion hole 31a, and as a result, the injection nozzle 21 at the tip of the gas pipe 20 faces the opening 15a, and the fuel gas is injected into the mixing pipe 15. is possible.

As described above, the flame guide 30 is attached to the stove burner 10 of this embodiment, but this is intended to prevent flames from blowing out from the opening 15a of the mixing pipe 15 even if back injection occurs in the stove burner 10. However, this is to avoid damage to the inside of the gas stove 1 and to allow back injection to be resolved naturally without any special operation. The reason why this is possible is as follows.

FIG. 4 is an explanatory diagram conceptually showing the movement of flame ejected from the opening 15a of the mixing tube 15 when back injection occurs. The thick dashed-dotted arrow in the figure represents the movement of the flame ejected from the opening 15a. As shown in the figure, since a collision wall 31 exists at a position facing the opening 15a, the flame ejected from the opening 15a collides with the collision wall 31 and is changed direction.

Here, as described above using FIGS. 2 and 3, the shape of the flame guide 30 is such that an upper wall 32 is formed above the collision wall 31, and flame guides are formed on the left and right sides of the collision wall 31. 30 side walls 33 are formed, but the lower surface of the flame guide 30 is open. Therefore, before the back injection occurs, air mainly flows from below the flame guide 30 toward the opening 15a of the mixing tube 15. The arrows indicated by thick broken lines in FIG. 4 conceptually represent the flow of air from below the flame guide 30 toward the opening 15a.

When a back jet occurs with air flowing from below toward the opening 15a, the flames ejected from the opening 15a collide with the collision wall 31, but the collided flames do not head downwards. , it will mainly move upward and to the left and right. Above the collision wall 31, an upper wall 32 extends toward the burner body 14, and on both sides of the collision wall 31, side walls 33 extend toward the burner body 14. It has been extended. Therefore, the flame that collides with the collision wall 31 and changes its direction upward is guided toward the burner body 14 by the upper wall 32. Further, the flame that has collided with the collision wall 31 and changed its direction in the left-right direction is guided toward the burner body 14 by side walls 33 provided on both sides of the collision wall 31. As a result, the flame ejected from the opening 15a advances along the mixing tube 15 toward the burner body 14. In FIG. 4, the flame that has collided with the collision wall 31 is shown by a dashed-dotted arrow as it moves along the mixing tube 15 in the direction of the burner body 14.

In this way, in the stove burner 10 of this embodiment, when back injection occurs, the flame ejected from the opening 15a is guided toward the burner body 14 by the flame guide 30. Therefore, the mixing tube 15 and the burner body 14 are heated by the flame, the mounting surface 14d of the burner body 14 is heated, and the flame opening grooves 11c and 11d are also heated by heat transfer from the mounting surface 14d. As a result, in the main burner port 12 and the auxiliary burner port 13, the evaporation of the boiling liquid that had been blocked is promoted and the burner ports are opened, returning to normal combustion, so that back injection can be eliminated.

Of course, even if the back-injected flame is guided toward the burner body 14, the spilled juice that has blocked the main flame port 12 and the auxiliary flame port 13 will not immediately evaporate. Therefore, even if the back injection occurs, the main flame port 12 and the auxiliary flame port 13 are blocked by boiling juice etc. for a while, and the back injection continues. However, as shown in FIGS. 2 and 3, since the flame guide 30 is provided so as to cover the front, upper, and left and right sides of the opening 15a of the mixing tube 15, the flame does not blow out from the opening 15a. Even if the gas stove 1 is heated, the inside of the gas stove 1 (for example, the back side of the top plate 2, etc.) will not be burned by the flame, and the gas stove 1 will not be damaged. On the other hand, as the flame ejected from the opening 15a is guided toward the burner body 14 by the flame guide 30, the evaporation of spilled juice, etc. that had blocked the main flame port 12 and the auxiliary flame port 13 is promoted. be done. Therefore, the blockage of the main burner port 12 and the auxiliary burner port 13 will be resolved after a while, and the back injection can also be resolved.

In this way, in the stove burner 10 of the present embodiment, even if back injection occurs, the back injection can be resolved without taking any special measures, and the inside of the gas stove 1 will not be damaged. In addition, even if back injection occurs, it can be resolved while cooking continues, so when back injection occurs, fuel gas supply and combustion can be temporarily stopped and the flame grooves can be cleaned, etc. There is no need for the troublesome operation of re-igniting and restarting the supply of fuel gas in order to continue cooking after the back injection is resolved.

Note that it is not necessary for all the flame ports to be blocked for the back injection to occur, but it will occur when a certain percentage of the flame ports are blocked. This certain percentage is roughly thought to be around 80%. Conversely, if we go from a state where backsplash is occurring to a state in which about 20% (or even 30% of all burn holes) are unobstructed, backspout will occur. It becomes possible to eliminate the problem.

Furthermore, in this embodiment, the collision wall 31 of the flame guide 30 is formed parallel to the opening 15a of the mixing tube 15. The reason for this is as follows. FIG. 5 is an explanatory diagram of a case where the collision wall 31 of the flame guide 30 is formed obliquely with respect to the opening 15a of the mixing tube 15. FIG. 5A shows a case where the collision wall 31 is provided so that the lower side approaches the opening 15a. As mentioned above, the air flowing into the mixing tube 15 from the opening 15a is mainly supplied from below, so when the lower part of the collision wall 31 approaches the opening 15a as shown in FIG. The flow of air toward the portion 15a is obstructed. For this reason, when back injection is not occurring, it becomes difficult for air to flow into the mixing tube 15, and there is a possibility that generation of mixed gas in the mixing tube 15 will be hindered.

Further, FIG. 5(b) shows a case where the collision wall 31 is provided so that the lower side is farther away from the opening 15a. If the collision wall 31 is provided at an angle such that the lower part of the collision wall 31 moves away from the opening 15a, as shown in FIG. 5(b), air can be easily supplied to the opening 15a. Therefore, when no back injection occurs, there is no possibility that generation of mixed gas in the mixing pipe 15 will be hindered. On the other hand, since the collision wall 31 is tilted so that the downward direction moves away from the opening 15a, when a back jet occurs, the flame ejected from the opening 15a is guided downward by the tilted collision wall 31. It happens. As a result, there is a risk that the flames will overcome the collision wall 31 and leak to the outside of the flame guide 30, causing damage to the inside of the gas stove 1.

In contrast, in this embodiment, since the collision wall 31 of the flame guide 30 is formed parallel to the opening 15a of the mixing tube 15, the collision wall 31 directs the air flow from below toward the opening 15a. There is no obstruction. Therefore, when back injection does not occur, a mixed gas in which fuel gas and air are mixed at an appropriate ratio can be formed in the mixing pipe 15. On the other hand, even if back injection occurs, there is no possibility that the flame that collided with the collision wall 31 will be guided by the collision wall 31 and leak to the outside of the flame guide 30. Note that in order to obtain the above-mentioned effect, the collision wall 31 does not need to be completely parallel to the opening 15a, but may be tilted from parallel as long as it is within ±5 degrees to the opening 15a. It has been experimentally confirmed that similar effects can be obtained.

In the flame guide 30 of the present embodiment described above, the left and right side walls 33 have been described as being formed in parallel. However, the distance between the left and right side walls 33 may become narrower toward the burner body 14. In the flame guide 30 of the first modification example illustrated in FIG. In this portion, the distance between the left and right side walls 33 is formed to become narrower toward the burner body 14. In this way, after the flame that collided with the collision wall 31 is directed toward the burner body 14 by the upper wall 32 and the side walls 33, the flame is directed to the center by the left and right side walls 33 of the extended portion. You will be able to receive it. Therefore, the flame efficiently heats the burner body 14, and the mounting surface 14d of the burner body 14 and the main flame groove 11c and auxiliary flame groove 11d of the burner head 11 can be quickly heated. Therefore, back injection can be quickly resolved.

Further, in the flame guide 30 of the present embodiment described above, the upper wall 32 has been described as being formed in a planar shape. However, the upper wall 32 of the flame guide 30 may be formed in an upwardly convex shape. FIG. 7 illustrates a third modification of the flame guide 30 in which the upper wall 32 is formed in an upward convex shape. In the example shown in FIG. 7(a), the upper wall 32 is formed in an upwardly convex curved shape, and in the example shown in FIG. 7(b), the upper wall 32 is formed in an upwardly convex chevron shape. It is formed. In these third modified flame guides 30 as well, the flames ejected from the opening 15a and collided with the collision wall 31 are redirected toward the burner body 14 by the upper wall 32, or when the flame is directed toward the burner body 14 by the upper wall 32. As the flame progresses toward the body 14, the convex upper wall 32 centers the flame. Therefore, in the third modification, as in the second modification described above, the flame efficiently heats the burner body 14, so that back injection can be quickly resolved.

Although the present embodiment and various modified examples of the stove burner 10 have been described above, the present invention is not limited to the above-described embodiment and various modified examples, and can be implemented in various forms without departing from the gist thereof. It is possible to do so.

1... Gas stove, 2... Top plate, 2a... Burner opening, 3... Trivet,
4... Burner ring, 10... Stove burner, 11... Burner head,
11a...Cylindrical wall, 11b...Support tube, 11c...Main flame outlet groove,
11d...Auxiliary flame outlet groove, 12...Main flame outlet, 13...Auxiliary flame outlet,
14...burner body, 14a...outer peripheral wall, 14b...inner peripheral wall,
14c... Burner body chamber, 14d... Placement surface, 15... Mixing tube,
15a...opening, 16...spark plug, 17...burner cover,
18...Temperature sensor, 19...Support pole, 20...Gas pipe,
21... Injection nozzle, 30... Flame guide, 31... Collision wall,
31a...Insertion hole, 32...Upper wall, 33...Side wall.

Claims (3)

A mixing tube in which a mixed gas of fuel gas and air is formed; a burner body to which the mixed gas is supplied from the mixing tube and having an annular mounting surface formed on the upper surface; A burner in which a plurality of burner grooves are formed on a lower end surface of a wall, and a plurality of burner ports are formed in an outer peripheral side surface of the cylindrical wall by being placed on a mounting surface of the burner body. A cooking stove burner that cooks food in a cooking container by ejecting and burning mixed gas from the plurality of flame ports,
The mixing tube has an opening formed at an end of the tube that is not connected to the burner body, and a mixed gas is formed by mixing the fuel gas and air that flowed in from the opening.
a collision wall provided at a position opposite to the opening of the mixing tube and with which the jetted flame collides when the mixed gas flame jets out from the opening; and a collision wall located above the collision wall. an upper wall extending in the direction of the burner body so as to guide the flame that collides with the collision wall in the direction of the burner body; and an upper wall extending from a position on both sides of the collision wall toward the burner body a flame guide having a side wall extending to guide the flame colliding with the collision wall in the direction of the burner body ;
The upper wall has a shape in which an end on the burner body side extends in the direction of the burner body.
Conlovana is characterized by: In the stove burner according to claim 1,
The stove burner is characterized in that the flame guide has an open bottom surface. In the stove burner according to claim 1 or claim 2,
The stove burner characterized in that the collision wall of the flame guide is formed parallel to the opening of the end of the mixing tube.

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