A fully premixed condensing wall-hung boiler with oxygen-enriching equipment

Abstract

The invention discloses a full premix condensation type wall-hanging stove with oxygen enrichment equipment. The full premix condensation type wall-hanging stove comprises a fan, an air control valve, the oxygen enrichment equipment, an air inlet pipe, a gas inlet pipe, a gas control valve, a gas proportion valve, a combustor, a heat exchanger, a mixer and an integrated control system, wherein the fan, the air control valve, the oxygen enrichment equipment and the air inlet pipe are mutually connected through pipelines, and the gas inlet pipe, the gas control valve and the gas proportion valve are mutually connected through pipelines. When orders from the control system are received, the fan starts to introduce air, the air flows through the oxygen enrichment equipment to improve the oxygen content, then the air is evenly mixed with introduced gas in the mixer, and finally the air and the gas enter the combustor to be lighted and combusted. At the same time, heat supply water flows through the heat exchanger to be heated and flows out of a heat supply water outlet to be used. By means of the full-premix condensation type wall-hanging stove with the oxygen enrichment equipment, oxygen condensation of mixed gas can be effectively improved before combustion, and fuel can be completely combusted in a method which is simple and practical and convenient to control. Meanwhile, ignition temperature is reduced, combustion speed is quickened, and emission of harmful gas is effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of heating equipment, and more specifically relates to a fully premixed condensing wall-hung boiler with oxygen-enriching equipment. Background technique [0002] In recent years, with the gradual improvement of people's living standards, heating and domestic hot water provided by gas wall-hung boilers have entered thousands of households. The current household wall-hung boiler mainly includes combustion system, heating system and control system. When the cold heating water is heated to the required hot heating water. Wall-hung boilers can be divided into ordinary wall-hung boilers and fully premixed condensing wall-hung boilers according to the combustion method. Heat recovery and utilization, the combustion method is fully premixed ratio adjustment; compared with ordinary wall-hung boilers, the mixed gas can be burned more completely, and it also has the characteristics of high thermal efficiency, energy...

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Problems solved by technology

[0004] However, the above solutions are more concerned with better utilization of the latent heat of the flue gas generated after combustion and at the same time reducing heat loss, but this requires adding more complex components to perform the above process, which increases manufacturing and maintenance costs accordingly In addition, the fully premixed condensing wall-hung boilers developed in recent years cannot achieve the mixing ratio of complete combustion due to the gas and air, and the air coefficient is high under the partial heat load of the wall-hung boiler, which leads to low thermal efficiency.

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