JP2006029722A - Burner for cooking stove - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a burner for a cooking stove capable of obtaining predetermined carry over performance without worsening combustion performance even if an interval between main burner ports is apart. <P>SOLUTION: This burner for the cooking stove is provided with many burner ports at a peripheral fringe by loading a burner cap 6 on a burner main body 5 having a mixing chamber 4. In this burner, a plurality of main burner ports 1 are formed in the peripheral direction between the burner cap 6 and the burner main body 5 in a channel 1a for the main burner port provided radially on an under surface side of the burner cap 6, and a holding burner port 3 is formed over the peripheral direction between a bottom edge of the outer periphery of the burner cap 6 and a top surface of the burner main body 5. Chamfering 7 is applied to a corner part between the main burner port 1 and the holding burner port positioned between the main burner ports 1 in a part where an interval between at least adjacent main burner ports 1 is larger than a standard interval. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a stove burner, and more particularly to a technique for improving the fire transfer performance between adjacent main flame outlets.

  In general, a stove burner is formed so that a burner cap is mounted on a burner body having a mixing chamber and a plurality of flame openings are provided at the periphery. The flame mouth is composed of a main flame mouth and a flame holding mouth. The main flame mouth is provided at substantially equal intervals around the circumference of the burner cap, and the flame holding mouth is a burner cap. Between the lower edge of the outer periphery and the upper surface of the burner body.

  As described above, in the stove burner, the main flame openings are provided at substantially equal intervals in the circumferential direction, but if the main flame opening is provided at a position corresponding to the five virtue claws of the five victories, the flame formed in the main flame mouth There is a problem that the virtuosity will be beaten, the combustion will deteriorate and the heat efficiency will deteriorate due to the wasteful consumption of heat. If the main flame mouth is not provided in the part corresponding to the five virtue claws so as not to beat the virtue claws with the flame formed in the main flame mouth, the interval between adjacent main flame mouths across the five virtue claws becomes wide, There is a problem that it becomes difficult to transfer the fire at this portion, and the fire transfer performance is deteriorated.

In order not to deteriorate the fire transfer performance at the portion corresponding to the five victories, a small virtue port 2 for the five victories is provided at a position corresponding to the five virtue claws between the main flame ports 1 as shown in FIG. Thus, it has also been carried out to improve the fire transfer performance (for example, see Patent Document 1). In FIG. 9, 3 is a flame holder.
JP 2003-214606 A

  As described above, when the virtues for the virtues are provided in the part corresponding to the virtues, the flame formed in the virtues is smaller than the flame formed in the main flares, but it is formed in the virtues. There is a problem that the flame burns the virgin claws, the combustion performance is deteriorated, and the heat efficiency is deteriorated due to the wasteful heat consumption. It is conceivable to increase the amount of gas supplied to the flame holder without the virtues, and to increase the amount of gas supplied to the flame holder. Although it becomes large, there exists a problem that combustion deteriorates and heat efficiency worsens by useless heat consumption.

  The present invention was invented in view of the above-described conventional problems, and a burner for a stove that can obtain a predetermined fire transfer performance without deteriorating the combustion performance even if the main flame opening is spaced apart. It is a problem to provide.

  In order to solve the above problems, the burner for a stove according to the present invention is a burner for a stove provided with a burner cap 6 on a burner body 5 having a mixing chamber 4 and provided with a number of flame openings on the periphery. A plurality of main flame openings 1 are formed in the circumferential direction between the burner cap 6 and the burner body 5 by the main flame opening grooves 1a formed radially on the lower surface side of the burner cap 6 and the outer circumference of the burner cap 6 The flame holding port 3 is formed between the lower edge of the burner body 5 and the upper surface of the burner body 5, and at least the main flame port 1 is spaced apart from the standard interval. A chamfer 7 is formed at a corner between 1 and the flame holding port 3 located between the main flame port 1.

  According to the above configuration, the flame formed in the main flame mouth 1 by the chamfer 7 is formed so as to protrude into the flame holder 3, and the flame holder is maintained even if the interval between the adjacent main flame mouths 1 is separated. It becomes easy to transfer through the mouth 3. At this time, since the chamfer 7 is only provided, the combustion performance is not deteriorated, and the heat efficiency is not deteriorated due to wasteful heat consumption.

  Further, the interval between the main flame outlets 1 adjacent to the five virtue claws 8a of the five virtues 8 is wider than the interval between the main flame vents 1 of the other parts, and the main flames located on both sides across the five virtue claws 8a. It is also preferable that a chamfer 7 is formed at a corner between the mouth 1 and the flame holding mouth 3 positioned between the main flame mouth 1. The flame formed in the main flame outlet 1 does not hit the virtuosity claw 8a, the combustion performance is deteriorated by the virtuos claw 8a, and the heat efficiency is not deteriorated due to wasteful heat consumption. Thus, even if the main flame outlet 1 is spaced apart so that the flames of the main flame outlet 1 do not hit the five virtue claws 8a, it becomes easy to transfer the fire between the adjacent main flame outlets 1 by the chamfering 7.

  In addition, the communication port 9 is formed in the outer peripheral surface between the main flame ports 1 adjacent to each other in the circumferential direction and is recessed from the outer peripheral surface of the other part to the inner peripheral side to form a twin flame port T. It is also preferable that chamfers 7 are formed at the corners between the twin flame ports T between the main flame port 1 and the flame holding ports 3 located between the adjacent twin flame ports T. By setting the twin flame mouth T, the flame of the adjacent main flame mouth 1 is connected when a small fire is made, and it becomes difficult to extinguish even if the fire is small, and the small fire performance can be improved. Moreover, even if the space | interval of the twin flame mouth T adjacent to the position etc. corresponding to the five virtue claws 8a is separated, the fire transfer between the twin flame mouths T adjacent to each other by the chamfer 7 is facilitated.

  Since the present invention is configured as described, the flame formed in the main flame mouth by chamfering is formed so that it protrudes from the flame holding mouth, and the main flame is adjacent at the position corresponding to the five virtue claws. Even if the distance between the mouths is far apart, it has the effect of facilitating fire transfer through the flame-holding mouth, and the combustion performance is not deteriorated because only chamfering is provided, and the heat efficiency is deteriorated due to wasteful heat consumption. There is an effect that there is nothing.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings. As shown in FIGS. 1 and 2, the stove burner A is composed mainly of a burner cap 6 that is detachably mounted on the mixing chamber 4 of the burner body 5. The stove burner A has a large burner A1, a standard burner A2, and a small burner A3. In the case of the gas stove B in FIG. 3, the large burner A1, the standard burner A2, and the small burner A3 are added one by one. Three stove burners A are installed. The stove burner A is exposed on the top plate 10 from the opening 11 of the top plate 10 such as a glass top plate, and an annular burner ring between the burner body 5 and the edge of the opening 11 of the top plate 10. 12 is interposed to prevent the broth from dropping from the top plate 10. Further, Gotoku 8 is placed on the top plate 10 so as to surround a portion exposed on the top plate 10 of the stove burner A, and a pan or the like can be placed on and supported by the Gotoku 8. . The standard burner A2 includes a pan bottom temperature sensor S and is exposed upward from a through hole at the center of the cover 30 described later. This pan bottom temperature sensor S detects the temperature of the pan bottom by contacting the pan bottom when the pan is installed in the standard burner A2, and various control of combustion of the standard burner A2 can be performed according to the detected temperature.

  The burner A has a large burner A1, a standard burner A2, and a small burner A3. These burners have basically the same structure, and in the following description, an example of the large burner A1 will be described. As shown in FIGS. 1 and 2, the burner body 5 integrally has a mixing tube 15. In this example, the burner body 5 is made of aluminum (aluminum die cast product). A gas nozzle 14 that discharges gas as fuel is disposed at the base end of the mixing tube 15. When gas is discharged from the gas nozzle 14, primary air is sucked from the base end of the mixing tube 15, and the gas and primary gas are mixed in the mixing tube 15. It is designed to be mixed with air. The burner body 5 is formed in an annular shape, and secondary air for combustion is supplied even through the inner peripheral side of the burner body 5. The burner body 5 is provided with an annular mixing chamber 4, which is in communication with a mixing tube 15. A burner base 16 is provided on the upper surface of the burner body 5, and a burner cap 6 is mounted on the burner base 16. In the case of this example, the burner cap 6 is made of aluminum.

  The burner cap 6 has a plurality of main flame opening grooves 1a radially formed in the circumferential direction on the lower surface, and the burner cap 6 is placed on the burner base 16 of the burner body 5 to place a main flame opening groove. The main flame mouth 1 is formed at 1a. Further, a step portion 17 is provided on the upper surface of the burner base 16 over the entire circumference, and by placing the burner cap 6 on the burner base 16, the flame holding port is provided over the entire circumference at the step portion 17. 3 is formed. The flame holding port 3 is supplied with a gas whose flow rate is throttled and flow velocity is reduced through the inflow groove 19 and the reservoir space 20 from the mixing chamber 4. When gas is supplied from the mixing chamber 4 and ignited, a main flame with a large flame is formed in the main flame opening 1 and a small flame holding flame is formed in the flame holding mouth 3 over the entire circumference. ing.

  In the case of this example, the five virtue claws 8a are provided at equal intervals in the case of the five virtues 8. As shown in FIG. 4, the portions corresponding to the five virtue claws 8a of the burner cap 6 are six places indicated by reference numeral C. However, five of the six locations have wide intervals between the adjacent main flame ports 1, and only the flame holding ports 3 form the flame holding ports 3 between the main flame ports 1 adjacent to each other with this wide interval. It is like that. Even in the remaining one place, the interval between the adjacent main flame ports 1 is widened, and an ignition flame port 21 is formed between the adjacent main flame ports 1. The ignition flame port 21 forms an ignition flame and can ignite the gas emitted from the flame holding port 3 and the main flame port 1. In the portion where the ignition flame port 21 is provided, a concave curved surface 22 is provided on the outer peripheral surface of the burner cap 6, and the ignition flame port 21 is provided at a position corresponding to the central portion of the concave curved surface 22.

  An ignition device 23 is attached to a portion corresponding to the ignition flame 21 to generate an ignition spark and ignite the gas emitted from the ignition flame 21. The ignition device 23 is mainly composed of an ignition plug 24 and an ignition spark target 25. The spark plug 24 is attached to the burner body 5, and the electrode 24a of the spark plug 24 protrudes upward. Above the portion of the burner cap 6 where the ignition flame port 21 is provided, a flange portion 26 is provided so as to protrude outward from the igniter flame port 21 so as to prevent intrusion of boiled juice or the like. An ignition spark target 25 is provided on the lower surface of the electrode, and the electrode 24a of the spark plug 24 and the ignition spark target 25 face each other with a predetermined gap therebetween. When gas is discharged from the ignition flame 21 and an ignition spark is generated by the ignition device 23, the gas discharged from the ignition flame 21 is ignited to form an ignition flame. Further, a staying space 27 is provided between the ignition flame port 21 and the mixing chamber 4, and the staying space 27 and the mixing chamber 4 are communicated with each other via a communication hole 28, and supplied from the mixing chamber 4. The gas to be discharged is caused to flow into the retention space 27 through the communication hole 28, temporarily retained in the retention space 27, and discharged from the ignition flame port 21.

  Further, a concave groove 29 for supplying secondary air is provided radially on the upper surface of the burner cap 6 at a position between the adjacent main flame ports 1, for combustion supplied from the central opening of the burner body 5. The secondary air is supplied to both sides of the main flame outlet 1 through the concave groove 29. As a result, the amount of combustion secondary air supplied from the outer periphery of the burner body 5 on the top plate 10 is sufficiently reduced by supplying secondary air from the inner peripheral side through at least the concave groove 29. The secondary air is supplied for stable combustion. Further, a cover 30 is installed on the upper surface of the burner cap 6 to prevent the soup from adhering to the upper surface of the burner cap 6, and a fixing tool 31 such as a jar or rivet is attached from the cover 30 to a mounting boss 32 of the burner cap 6. The cover 30 is attached by driving in.

  Of the six five virtue claws 8a of the five virtues 8a, in the portion corresponding to the five five virtue claws 8a, the interval between the adjacent main flame vents 1 is made wider than the standard interval of the other portions. In a portion where the interval of 1 is widened, a flame holding port 3 is provided between them so that only flame holding is formed. As a result, the flame formed in the main flame mouth 1 does not hit the virtues claw 8a, the combustion does not deteriorate at this portion, and the heat efficiency is not deteriorated due to wasteful heat consumption. In this invention, the following structure is employ | adopted as a pair of main flame mouth 1 adjacent across this virtuous claw 8a. That is, as shown in FIG. 5, a chamfer 7 such as a C chamfer is formed at the corner between the flame holding port 3 and the main flame port 1 between the adjacent main flame ports 1. By providing the chamfer 7 as described above, the flame formed in the main flame mouth 1 is formed so as to protrude from the flame holding mouth 3, and the flame formed in the adjacent main flame mouth 1 approaches, so that the fire easily moves. Become.

  6 to 8 show an example in the case of the standard burner A2. In the case of this example, a twin flame mouth T is formed by setting two adjacent main flame mouths 1 as a set. In each twin flame mouth T, the outer peripheral surface between adjacent main flame ports 1 is recessed from the outer peripheral surface of the other part to the inner peripheral side to form a communication recess 9. In other words, the twin flame outlet T is formed on the outer circumferential surface between the main flame outlets 1 adjacent to each other in the circumferential direction by forming the communication recess 9 recessed inward from the outer circumferential surface of the other part. It is. In this manner, when the twin flame outlet T is used, when burning with a large fire, each main flame mouth 1 burns so that a flame is formed independently. Since the flame formed in 1 is connected at the communication recess 9 and burns, even if it becomes a small fire, it does not extinguish and the small fire performance is improved.

  In the case of this standard burner A2, the step 17 provided on the upper surface of the burner base 16 of the burner body 5 is composed of an inner step 17a on the inner peripheral side and an outer step 17b on the outer peripheral side. The outer diameter of the outer step portion 17 b is larger than the outer diameter of the burner cap 6, and the boundary portion between the outer step portion 17 b and the inner step portion 17 a is substantially the same as the outer diameter of the burner cap 6. In addition, the inner diameter of the inner step portion 17 b is smaller than the outer diameter of the burner cap 6. Thus, if the outer step portion 17b protruding outward from the outer periphery of the burner cap 6 is provided outside the inner step portion 17a, the flame holding formed in the flame holding port 3 can be stabilized. In the case of this standard burner A2, since the pan bottom temperature sensor S is provided as described above, the pan bottom temperature sensor S is installed so as to pass through the central opening of the burner body 5 and the burner cap 6. The cover 30 attached on the burner cap 6 is also provided with a through hole in the center, and the pan bottom temperature sensor S is exposed through the through hole. Further, a concave groove 29 for supplying secondary air is provided radially on the upper surface of the burner cap 6, and the secondary air for combustion supplied from the central opening of the burner body 5 is twin flame through the concave groove 29. It is supplied to the mouth T. In the case of this standard burner A2, the concave groove 29 is provided so as to be positioned between every other twin flame ports T. Specifically, the concave groove 29 is not provided between the twin flame outlets T corresponding to the five virtue claws 8a, but the concave groove 29 is provided between the twin flame outlets T located between the adjacent five virtue claws 8a.

  This twin flame outlet T also has a larger interval than the standard interval at the portion corresponding to the five virtue claws 8a of the five victories 8, and there is only the flame holding mouth 3 between the twin flame mouths T straddling the five virtue claws 8a. Then, a chamfer such as a C chamfer is formed at the corner between the main flame mouth 1 on the side of the five victories claw 8a of the pair of twin flame mouths T positioned so as to straddle the five virtue claws 8a and the flame holding mouth 3 between the main flame mouths 1. 7 is formed. As a result, even in the twin flame outlet T, a flame is formed so as to protrude from the flame holder 3 to the main flame outlet 1 and the fire transfer performance is improved. In the case of this example, the main flame outlet 1 and the main flame are also located between the twin flame outlets T other than the twin flame outlets T adjacent to each other across the five virtue claws 8a, that is, between the twin flame outlets T adjacent via the concave groove 29. A chamfer 7 is provided at the corner between the mouth 1 and the flame-holding port 3, thereby improving the fire transfer performance.

  The standard burner A2 employs the twin-flame T structure as described above, but the small burner A3 also employs the twin-flame T structure.

It is a disassembled perspective view which shows an example of the burner for stoves of this invention. It is sectional drawing of the state which installed the burner for stoves same as the above. It is a top view which shows the gas stove which installed the burner for stoves same as the above. The burner cap same as the above is shown, (a) is a plan view and (b) is a bottom view. (A) is the front view for demonstrating a flame mouth, (b) is the bottom view to which the principal part of the burner cap was expanded. It is a disassembled perspective view which shows the other examples of the stove burner same as the above. (A) is a bottom view which shows the burner cap of FIG. 6, (b) is the principal part enlarged view of (a). It is a front view for demonstrating a flame mouth same as the above. It is a front view explaining the flame mouth of a prior art example.

Explanation of symbols

A burner burner T twin flame outlet
1 Main flame mouth 1a Groove for main flame mouth 3 Flame holding mouth
4 Mixing chamber 5 Burner body 6 Burner cap 7 Chamfering 8 Gotoku 8a Gotoku nail

Claims (3)

In a burner burner with a burner cap mounted on the burner body having a mixing chamber and provided with a large number of flame outlets on the periphery, the burner cap is formed by a groove for the main flame opening radially drilled on the lower surface side of the burner cap. Forming a plurality of main flame ports in the circumferential direction between the burner body and the burner body, and forming a flame holding port between the lower edge of the outer periphery of the burner cap and the upper surface of the burner body, A chamfer is formed at the corner between the main flame mouth and the flame holding mouth located between the main flame mouths at a portion where the interval between adjacent main flame mouths is larger than the standard interval. Filter burner. The main flame outlet adjacent to the five virtue claws of the five virtues is wider than the gap between the main flame mouths of the other parts, and the main flame vents located on both sides across the five virtue claws and the main flame vent The stove burner according to claim 1, wherein a chamfer is formed at a corner between the flame holding port located between the stove burners. A twin crater is formed in the outer peripheral surface between every other main flame flank in the circumferential direction by forming a communication dent recessed from the outer peripheral surface of the other part to the inner peripheral side. The stove burner according to claim 1 or 2, wherein a chamfer is formed at a corner between the main flame mouth and the flame holding mouth located between the adjacent twin flame mouths.

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