Condensing hot water boiler

Abstract

The invention provides a condensing hot water boiler which comprises a combustion chamber, a condensing heat exchanger and an internal circulation system, wherein the combustion chamber is arranged in a casing of the condensing heat exchanger; a connecting pipeline at the lower end of the combustion chamber penetrates through the casing of the condensing heat exchanger, and is used for being connected with the combustion engine; a smoke outlet is formed in the cylinder wall at the top of the combustion chamber; the smoke outlet is connected with smoke guiding bend pipes; a smoke discharging end opening of each smoke guiding bend pipe opens downwards; a water feeding atomization device of the boiler is arranged above the smoke guiding bend pipes. The internal circulation system is used for forcibly circulating boiler water to the atomization device above the combustion chamber; so that the internal circulation of water in the boiler is strengthened, and heat can be absorbed better. Through the arrangement of the special smoke guiding bend pipes, the water feeding atomization device and the internal circulation system, clean high temperature smoke and fed water of the boiler can be in direct contact effectively to exchange heat, the heat efficiency of the boiler can be fully improved, the temperature of the discharged smoke is reduced, and reliable hot water can be provided for enterprises and public institutions for heating, industry, bathing and the like.

Description

technical field [0001] The invention relates to the technical field of condensing boilers, and provides a condensing hot water boiler in which fully combusted high-temperature flue gas and boiler low-temperature feed water directly contact and exchange heat. technical background [0002] The purpose of the condensing hot water boiler is to reduce the exhaust gas temperature at the boiler outlet, release the latent heat of vaporization of water vapor, improve the thermal efficiency of the boiler, and comprehensively reduce the emission of pollutants in the flue gas. The measures taken are to allow the clean burning high-temperature flue gas to fully contact the boiler feed water in the boiler, quickly reduce the temperature of the hot flue gas, reduce the temperature of the water vapor in the flue gas to below the dew point, and fully reduce the concentration of water vapor in the flue gas. content, fully absorb the latent heat of vaporization of water vapor, improve boiler t...

AI Technical Summary

Problems solved by technology

However, the devices for implementing these measures in the prior art have the problems of complex structure and poor effect, so that the exhaust gas temperature of the condensing hot water boiler cannot be significantly reduced in practice. In addition, there are many exhaust outlets of the condensing hot water boiler. There are cases where white smoke takes away more heat and the circulating water is lost. In addition, due to the unreasonable structural design of the condensing hot water boiler, it also affects the heating effect

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