JPS5952113A - Gas burner - Google Patents

Abstract

PURPOSE:To improve ignition failure between burner ports when distance between burner ports are widened, by intermitting the distance of burner ports into several parts, and by providing flame holding grooves for ignition to burner ports at both ends of the intermitted parts. CONSTITUTION:Part of mixed gas injected from burner ports is spread in the distance direction 54 of burner ports 51 by flame holding grooves 53 for flames ignition provided in the distance direction of burner ports 51. The mixed air led by the flame holding groove 53 for ignition from the burner ports 51 at both ends is joined in an intermittent part 55, forming an actual burner port to become the continuous state with each other. The degree of continuity of the burner ports 51 in the intermittent part 55 is changed by the rate of mixed gas in the flame holding groove 53 for ignition. Formation of small flames which can be held in the intermittent part 55 is enough, and the secondary air can be fed enough to the burner ports without being disturbed by flames.

Description

DETAILED DESCRIPTION OF THE INVENTION An object of the present invention is to provide a burner that improves poor flame transfer between the burner holes, which occurs when the distance between the burner holes is increased.

First, a conventional gas burner will be explained using FIGS. 1 to 6.

In Fig. 1, when the cock 2 of the stove 1 is operated and opened, gas is ejected from the nozzle 3 into the mixing tube 4, air is sucked in from the surroundings by the ejection energy, and the gas and air are mixed in the mixing tube 4. Then, the burner head 5 and the burner cap 6 are combined into a mixing chamber T, where the burner cap 6, the burner head 5, the receiver 1, the trivet 10, and the pot are arranged through the flame holes 8 arranged on a constant circumference. The flame 9 is ejected into a combustion chamber 17 composed of 11 and combusts to form a flame 9. At that time,
A part of the air-fuel mixture ejected from the flame hole 8 is used for flame stabilization 21 by a flame stabilization groove 7 provided around the flame hole 8, and flame stabilization 21 of the flame 9 is performed. In this way, when the pot 11 is placed on the trivet 10-1- in the state of combustion, it is heated and the purpose is achieved. As mentioned above, secondary air for combustion from both sides of the flame during combustion, that is, from the center side of the burner, is necessary because all the air necessary for combustion does not enter the air-fuel mixture. If the difference between the required amount of air and the amount of air contained in the mixture is not supplied as secondary air, combustion in flame 9 will be incomplete, and the combustion exhaust gas will contain a large amount of carbon monoxide, making it difficult to use as a stove. It will not meet the performance standards of For this reason, it is necessary to supply more than a certain amount of secondary air, and secondary air 13 is supplied from the gap 14 between the burner head 6 and the saucer 12 in an attempt to maintain complete combustion. If secondary air is not similarly supplied to the closed space 16 composed of the cap 6, flame 9, and pot 11, the combustion surface 19 of the flame 9 on the closed space 16 side will not be formed, and the flame 9 will not flow into the combustion chamber 17. A situation occurs in which only the combustion surface 18 on the side is formed and combustion is maintained, resulting in a situation that is exactly the same as the problem of secondary air failure. In order to supply secondary air to the burner cap 6, the flame holes 8 provided in the burner cap 6 are not arranged at equal intervals over the entire circumference, but the intervals between the flame holes 8 arranged in the burner cap 6 are interrupted at several points.
By providing the intermittent part 2o, the interval between the flames 90 during combustion becomes larger in the intermittent part 2° than in the part where other flame holes 8 are arranged at predetermined intervals. Secondary air is supplied to the but,
In this way, the secondary air is completely supplied, and the combustion surface 19 on the closed space 16 side of the flame 9 is also formed, resulting in complete combustion.On the other hand, the interrupted section 2 provided as the secondary air passage
0, the intervals between the flame holes 8 are such that the flame holes 8 are arranged in a predetermined manner.
If the interval is larger than the interval of
The problem of fire transfer stopping at the 0 position was a problem, and the current situation was that contradictory results were obtained from the perspective of secondary air supply. This is where the bad burner setup was done.

As shown in 1- below, conventional gas burners have poor flame transfer performance.
If the interval between the flame conduits 8 is made smaller in order to improve the performance, the supply of secondary air as mentioned above will decrease, resulting in poor combustion. It has the disadvantage of poor flame transfer in some parts. The present invention solves the above-mentioned drawbacks of the conventional technology by improving the burner cap. FIG. 7 shows the present invention.

Although explained with reference to FIG. 8, the structure of the stove, the structure of the burner, etc. are the same as the conventional ones, so the explanation will be omitted.

The air-fuel mixture is ejected from the flame hole 51 of the burner camp 5o placed on the burner head 6'2 and burned, and part of the ejected air-fuel mixture is kept flame-holding by the flame-holding groove 52, just as in the conventional case. be done. Then, a part of the ejected air-fuel mixture spreads in the direction 64 between the flame holes 51 through the flame transfer and ffl flame holding grooves 63 provided in the direction of the flame hole 610 spacing, and at the interrupted portion 65, the flame transfer from the flame holes 51 at both ends. The air-fuel mixture guided by the flame-holding groove 53 comes together to form a substantial flame hole and are in a continuous state. Further, the degree of continuity of the flame holes 51 in the interrupted portion 65 changes depending on the amount of flame holding grooves 53 for flame transfer. Therefore, the conventional method of reducing the flame hole interval to improve flame transfer would result in the flame hole 51 being provided at the discontinuous part, making it impossible to supply secondary air, whereas the present invention According to this, it is sufficient to form a flame that is small enough to hold the flame in the intermittent portion 66, so that the secondary air is sufficiently supplied without being hindered by the flame.

As explained above, the present invention makes it possible to supply secondary air to the entire surface of the flame, prevents incomplete combustion due to lack of air, and prevents fire transfer even at the interrupted portions of the flame hole by providing a secondary air supply section. This has the effect of obtaining the same performance as one without providing an intermittent part.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing the structure of a conventional stove, Fig. 2 is a sectional view of a conventional burner cap and burner head, Fig. 3 is a sectional view of a conventional burner cap, and Fig. 4 is a plan view of the burner cap. , Figure 6 shows the same burner cap and )! - A partial cross-sectional view of the gas burner, FIG. 6 is a side view of the burner head, FIG. 7 is a partial cross-sectional view of an embodiment of the gas burner of the present invention, and FIG. 8 is a partial cross-sectional view of the burner head of the gas burner.
This is a side view. 5... Burner head, 5o... Burner cap, 61... Flame hole, 62... Flame holding groove,
63...Flame holding groove for fire transfer, 55...Intermittent part. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3! 14 Figure

Claims (1)

[Claims] The burner head and burner cap are combined, flame holes are arranged on a constant circumference, and flame-holding grooves are provided around the flame holes.
A gas burner having interrupted portions in which the intervals between the flame holes are interrupted at several places, flame holes at both ends of the interrupted portion, and flame holding grooves for flame transfer in the circumferential direction in which the flame holes are arranged.