Full premixing type water heater

Abstract

The invention discloses a full premixing type water heater. The water heater comprises a shell; an air inlet assembly which comprises a shell and an air blower, wherein the shell and the air blower are installed on the upper portion in the outer shell, the shell comprises a first mixing cavity and a second mixing cavity, the first mixing cavity is provided with a first inlet allowing fuel gas to enter and a second inlet allowing air to enter, the first mixing cavity communicates with the second mixing cavity, and an included angle is formed in the communicating position; a combustor which is provided with a gas inlet and a combustion end, wherein the gas inlet is relatively located above the combustion end, and the gas inlet is communicated with the output end of the second mixing cavity;a combustion chamber which is located below the combustor and is in butt joint with the combustion end of the combustor, wherein a space for containing flame generated by the combustor is formed in the combustion chamber; and a heat exchange pipeline which exchanges heat with the combustion chamber. According to the water heater of the structure, gas and air are fully mixed through the gas inlet assembly, and the phenomena of deflagration and poor combustion can be reduced.

Description

technical field [0001] The invention relates to the technical field of gas appliances, in particular to a fully premixed water heater. Background technique [0002] In order to improve the thermal efficiency of gas water heaters, you can choose to use fully premixed air intake, which means that the gas and air are fully mixed before being ignited, and then ignited. The structure design of the air intake components on the existing water heaters is complicated and unreasonable. As a result, the mixing of the gas is not uniform enough, resulting in deflagration and poor combustion; in addition, there is room for improvement in other structures of the existing gas water heater. Contents of the invention [0003] The purpose of the present invention is to solve at least one of the technical problems in the prior art, and provide a fully premixed water heater, which can fully mix air and gas, mix evenly, and reduce deflagration and poor combustion. [0004] According to one asp...

AI Technical Summary

Problems solved by technology

[0002] In order to improve the thermal efficiency of gas water heaters, you can choose to use fully premixed air intake, which means that the gas and air are fully mixed before being ignited, and then ignited. The structure design of the air intake components on the existing water heaters is complicated and unreasonable. Insufficient gas mixing leads to deflagration and poor combustion; in addition, existing gas water heaters also have room for improvement in other structures

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