Combustor assembly and gas water heater

Abstract

The invention relates to the technical field of gas appliances, and discloses a combustor assembly and a gas water heater including the combustor assembly. The combustor assembly comprises a row-shaped fire nozzle assembly and a gas spraying tube, wherein the row-shaped fire nozzle assembly comprises a plurality of row-shaped fire nozzles and a mounting rack which is used for mounting the varietyof row-shaped fire nozzles together; ejection channels are arranged on the row-shaped fire nozzles, a corresponding ejection nozzle is formed in the bottom end of each of the ejection channels and a corresponding injection nozzle is formed in the other end of each of the ejection channels; a fire hole plate is arranged on the corresponding injection nozzle of each of the row-shaped fire nozzles; the variety of row-shaped fire nozzles are formed in the directions being perpendicular to the ejection channels at intervals; the gas spraying tube is mounted on the mounting rack; a plurality of nozzles corresponding to the the ejection nozzles are formed in the gas spraying tube; and at least two spraying holes are formed in the nozzles and align to the ejection nozzles. The combustor assembly and the gas water heater disclosed by the invention have the beneficial effects that at least two spraying nozzles are formed in the various nozzles of the gas spraying tube, so that the gas injectionpressure and speed can be increased, and more primary air can be ejected, and thus, the air can be burned fully, and the combustion efficiency can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of gas appliances, in particular to a burner assembly and a gas water heater including the same. Background technique [0002] In the burner, the minimum amount of air required for complete combustion of the gas is called the theoretical air volume, and the ratio of the air volume pre-mixed with the gas in the burner to the theoretical air volume is called the primary air coefficient, and its value reflects the The mixing state of the premixed gas. The burner designed according to the partial premixed combustion method is called the atmospheric burner. The common atmospheric burner assembly, because the primary air coefficient α is small, 0<α<1, the primary air of the burner is less, it will lead to incomplete combustion; [0003] In addition, there is a high-temperature combustion surface area in the combustion flame, and the high-temperature combustion surface makes the nitrogen in the air near the...

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Problems solved by technology

The burner designed according to the partial premixed combustion method is called the atmospheric burner. The common atmospheric burner assembly, because the primary air coefficient α is small, 0<α<1, the primary air of the burner is less, it will lead to incomplete combustion;

[0003] In addition, there is a high-temperature combustion surface area in the combustion flame, and the high-temperature combustion surface makes the nitrogen in the air near the combustion surface react with oxygen to continuously generate nitrogen oxides; European standards stipulate that the nitrogen oxide content of gas water heaters must be Not more than 56mg / kW.h, the existing atmospheric burner cannot meet the requirements

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