JPH05280715A - Burner for hot-water supplier - Google Patents

Abstract

PURPOSE:To permit the elimination of combustion noise by preventing lift phenomenon and stabilizing combustion, in a burner for a hot-water supplier, in which the generation of nitrogen oxide is reduced upon combustion. CONSTITUTION:In a burner for a hot-water supplier, constituted of a multitude of Bunsen burners 1 provided in a row, a spark rod 5 is provided between water tubes for reducing NOX, which are provided above the Bunsen burners 1, and the Bunsen burners 1 while a fire shifting means 3 is provided near a flame port 4 between the Bunsen burners 1. According to this method, lift phenomenon is eliminated, combustion is stabilized and combustion noise can be eliminated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a burner device for a water heater used for supplying hot water or for heating.

[0002]

In Related Art water heater Bunsen burner, if installed NO _X reduction water tube to the Bunsen burner downstream,
Can reduce flame temperature, nitrogen oxides (NO _x )
Can be reduced (for example, Japanese Patent Application No. Hei 3-2090943). However, although the NO _X reducing effect can be expected, as shown in FIG. 2, a lift phenomenon in which combustion occurs above the NO _X reducing water pipe may occur, and combustion noise was found to significantly increase.

[0003]

In the above-described Bunsen burner for a water heater, the NO _X reducing water pipe suppresses the generation of NO _X , and at the same time, lift phenomenon is eliminated to stabilize combustion, and combustion noise due to lift is increased. The challenge is to eliminate the increase in energy consumption.

[0004]

The present invention provides a burner for a water heater, which comprises a number of Bunsen burners arranged in a row.
A spark rod is provided between the NO _x reduction water pipe provided above the Bunsen burner and the Bunsen burner, and a fire transfer means is provided in the vicinity of the flame opening between the Bunsen burners. is there.

[0005]

The gas-air mixture ejected from the flame opening is ignited by the spark generated from the spark rod provided between the flame opening and the NO _X reducing water pipe. Simultaneously with the generation of the flame, the flame transfer means ensures the flame transfer to a large number of burners arranged in a row, and the flame is instantaneously generated in the entire burner unit. As described above, sparks are generated from the spark rod between the NO _X reducing water pipe and the flame mouth, so that ignition can be reliably performed and at the same time,
Since the fire transfer means is present in the vicinity of the flame opening, the generated flame is fixed and burned in the flame opening without lift combustion on the NO _X reducing water pipe. As a result, the stabilization of the flame is promoted, and the problem of generation of combustion noise can be solved.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference numeral 1 indicates a Bunsen burner. The Bunsen burner is constituting the water heater burner with multiple arrayed state, for of the NO _X reduction, it is desirable to install a NO _X reduction water tube 2 to the maximum flame region or upstream thereof. However, although such a configuration has a great effect for reducing NO _X , the flame may lift and burn on the NO _X reducing water pipe, resulting in a significant increase in combustion noise. There has occurred. As a result of various experiments conducted by the present inventor, when the spark rod 5 is positioned between the NO _x reduction water pipe 2 and the Bunsen burner 1 to generate a spark, ignition can be reliably performed, and at the same time,
The generated flame instantly spreads to the entire burner by the fire transfer means 3 installed near the flame port 4 between the Bunsen burners 1 and stabilizes the entire flame. The above-mentioned fire transfer means enables a quick fire transfer by partially suppressing the amount of air passing between the Bunsen burners 1 by a sheet metal, a rod or the like. Combustion noise can be resolved by stabilizing the flame. Further, it is possible to suppress the deterioration of the surface of the water pipe for NO _x reduction and the increase in the amount of generated products.

[0007]

Industrial Applicability According to the present invention, a spark is generated between the NO _X reducing water pipe and the flame mouth portion to perform reliable ignition, and at the same time, the combustion is stabilized by the fire transfer means provided in the vicinity of the flame mouth portion. And various effects such as suppressing the generation of combustion noise are achieved.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of the present invention.

FIG. 2 is an explanatory diagram showing a lift phenomenon.

[Explanation of symbols]

1 Bunsen burner 2 Water pipe for NO _X reduction 3 Fire transfer means 4 Flame mouth part 5 Spark rod

Claims (1)

[Claims] 1. A water heater burner comprising a number of Bunsen burners arranged in a row, wherein a spark rod is installed between the NO _X reducing water pipe provided above the Bunsen burner and the Bunsen burner. A burner device for a water heater, which is provided with a heat transfer means in the vicinity of the flame opening between the burners.