Full-premixing burner, heat exchanger and wall hanging stove

Abstract

The invention belongs to the technical field of burners, and discloses a full-premixing burner, a heat exchanger and a wall hanging stove. The burner comprises an air inlet plate and a burning wall, aplurality of air inlet holes are uniformly formed in the air inlet plate in the circumferential direction, the air inlet holes face the burning wall, and are connected with the air inlet plate in thedirection opposite to the burning wall; the burning wall is in a circular barrel shape with a closed end, one opened end of the burning wall is fixedly connected with the air inlet plate; and burningholes are uniformly distributed in the circular barrel wall of the burning wall. The full-premixing heat exchanger comprises the burner above, the heat exchanger and a shell, wherein the heat exchanger is arranged around the burning wall of the burner, and the shell is used for covering the burner and the heat exchanger to form an air inlet component. According to the full-premixing burner, the heat exchanger and the wall hanging stove, the burner can guide gas flow, so that mixed gas is directly sprayed to the burning wall and is sprayed out from the burning holes in the burning wall, flamecan burn above the burner due to the fact the gas flow is strong, so that the burner can be prevented from bearing high temperature, and loss and fatigue of burner materials can be reduced.

Description

technical field [0001] The invention belongs to the technical field of burners, and in particular relates to a fully premixed burner, a heat exchanger and a wall-hung boiler. Background technique [0002] The full premixed heat exchange of the wall-hung boiler is to install the burner and the heat exchange tube in the airtight shell, premix the natural gas and air in a certain proportion in advance, inject the premixed gas into the burner, and the flame will burn in the burner. Edge combustion, the temperature of the flame exchanges heat with the water in the surrounding heat exchange tubes to realize the function of heating water. The heat transfer efficiency is an important index to measure the full premixed heat exchanger, and the main factors affecting the heat transfer efficiency include the combustion state of the flame on the burner. The burner structure determines the gas flow direction and flame state. [0003] If the structure of the burner is poor, there will be...

AI Technical Summary

Problems solved by technology

The burner can guide the flow of gas in the burner, so that the mixed gas can be sprayed directly to the combustion wall, so as to solve the problems of weak gas injection, chaotic flame direction, long distance from the heat exchange tube, and low heat exchange efficiency. At the same time, it helps the combustion gas to be ejected from the combustion hole on the combustion wall, and the airflow is strong, so that the flame burns above the burner instead of clinging to the surface of the burner, avoiding the high temperature of the burner and reducing the loss and loss of burner materials. fatigue

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