Low nitrogen oxide burner of fuel gas heating water heater

A low-nitrogen oxide, gas heating technology, applied in gas fuel burners, burners, combustion methods, etc., can solve problems such as difficulty in adjusting the ratio of rich gas to light gas, complicated burner structure, and occurrence of acid rain, etc. The effect of strong oxygen supply and gas mixed flow capacity, improved combustion stability and low cost

CN106642109AActive Publication Date: 2017-05-10黄婉平
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2017-05-10

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Abstract

The invention discloses a low nitrogen oxide burner of a fuel gas heating water heater. When the low nitrogen oxide burner is applied, fuel gas and air mixed gas directly rushes upwards through a fuel gas mixing inlet injection pipe; when the fuel gas and air mixed gas collides a fuel gas guide concave bag, due to blocking of the fuel gas guide concave bag, a part of fuel gas and air mixed gas flows to the two sides, the other part of fuel gas and air mixed gas is directly upwards to enter a mixed gas groove, part of fuel gas and air mixed gas is straightly upwards to burn at the top of a fire dividing hole, the other small part of fuel gas and air mixed gas is blocked by a fire receiving hole separating plate to generate positive pressure, and under the influence of the positive pressure, part of gas enter an outer side fuel gas mixing gas dividing groove from a transverse fuel gas and air mixing air flow outlet hole and burns in an outer side burning hole; and the top of a burner shell cover is provided with a plurality of flame burning holes through a plurality of transverse plates in a mesh dividing manner, and the fire power of fire behaviors generated by burning is strong; meanwhile, the flame area is greatly increased, and burning is more sufficient.
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Description

[0001] Technical field:

[0002] The invention relates to a burner for a gas heating water heater, in particular to a low nitrogen oxide burner for a gas heating water heater. Background technique

[0003] As the country continues to strengthen environmental protection, there will be new standards for flue gas emissions from gas appliances, especially for NOx emissions. Now gas appliances entering Europe and the United States must have low NOx requirements. The NOx emission requirements for gas appliances also began in 2012; the existing burners for ordinary wall-hung boilers will produce a large amount of NOx during combustion, which will pollute the environment, and even cause acid rain and endanger the human respiratory system. In the prior art, under the condition of negative pressure, there is a burner with low nitrogen oxides using rich-lean technology. This type of burner includes an injection pipe and a head distributor. The gas inlet at one end of the injection pipe i...

Examples

Embodiment Construction

[0033]A low nitrogen oxide burner for a gas heating water heater. The low nitrogen oxide burner includes a gas mixing shell 1, a fire hole grille 2, and a burner shell cover 3; the gas mixing shell 1 is provided with A number of gas mixed intake injection pipes 11, the bottom end of the gas mixed intake injection tube 11 is provided with a gas injection port 111; the top of the gas mixed housing 1 is provided with a mixed gas groove 12, and The groove 12 communicates with the gas mixing intake injection pipe 11; the front and rear shell walls of the upper part of the gas mixing shell 1 are provided with ribs 13, which are formed between the ribs 13 and the top plate tail of the gas mixing shell 1. There is a step 131; several horizontal gas outflow holes 14 are arranged on the front and rear shell walls of the top plate tail of the gas mixing shell 1; the fire hole grid 2 is fixed on the slot of the gas mixture groove 12, and the fire hole grid The width of the grid 2 is great...