Condensation-type hot-water boiler arranged in triple-pass folding manner

Abstract

The invention relates to a condensation-type hot-water boiler arranged in a triple-pass folding manner. The condensation-type hot-water boiler comprises a boiler body; the boiler body comprises a high-temperature section shell, a furnace chamber, a high-temperature section smoke tube, a low-temperature section shell, a front tube plate, a rear tube plate and a low-temperature smoke tube, wherein the high-temperature section shell covers the furnace chamber and the high-temperature section smoke tube arranged on the periphery of the furnace chamber; a water outlet pipe is arranged on the high-temperature section shell; the front tube pate, the rear tube plate and the low-temperature section smoke tube welded between the front tube plate and the rear tube plate are arranged in the low-temperature section shell in a welding manner; the front end of the low-temperature section shell is connected with a water inlet pipe; the rear end of the low-temperature section shell is provided with a connecting pipe which is connected with the bottom of the high-temperature section shell; the low-temperature section shell and the high-temperature section shell are of a horizontal type respectively and are arranged in a folding manner; the exhaust gas temperature is rapidly reduced by increasing the temperature difference between flue gas and a medium, a condensation effect is achieved and the thermal efficiency of the boiler is finally improved.

Description

technical field [0001] The invention belongs to the technical field of heat energy equipment, more specifically, it relates to a three-pass folded condensing hot water boiler. Background technique [0002] A boiler is a device that uses various fuels, electricity or other energy sources to heat the liquid contained in it to a certain parameter and output heat energy to the outside. [0003] Generally, a hot water boiler with a shell structure is used, and the temperature of the boiler water inside the heating surface such as the shell, the furnace, and the smoke pipe is basically the same. In a traditional boiler, no matter whether the burner is located in the lower part or the upper part of the boiler body, the flue gas The trajectory of the flue gas is consistent with the trajectory of the water flow. The temperature of the flue gas is gradually reduced during the flow, while the temperature of the medium is gradually increased. The temperature difference between the tempe...

AI Technical Summary

Problems solved by technology

[0003] Generally, a hot water boiler with a shell structure is used, and the temperature of the boiler water inside the heating surface such as the shell, the furnace, and the smoke pipe is basically the same. In a traditional boiler, no matter whether the burner is located in the lower part or the upper part of the boiler body, the flue gas The trajectory of the flue gas is consistent with the trajectory of the water flow. The temperature of the flue gas is gradually reduced during the flow, while the temperature of the medium is gradually increased. The temperature difference between the temperature of the flue gas and the temperature of the medium will decrease as it reaches the tail. As a result, the heat exchange effect is reduced, and the final flue gas is exhausted to the atmosphere with a large amount of waste heat, and the heat energy is lost in vain, which not only reduces the thermal efficiency of the boiler but also pollutes the environment

[0004] In addition, the traditional boiler occupies a large area because the boiler is not divided into sections but is arranged as a whole.

Images