Once-through hot-water boiler

Abstract

The invention relates to a straight-through hot water boiler. Including the furnace body, the furnace body is provided with a coiled pipe wound on the outer wall of the furnace, and the coiled pipe is provided with a liquid inlet and a liquid outlet; Partition, the partition divides the furnace body into several connected flue gas chambers in the radial direction; the furnace body is provided with a smoke inlet and a smoke outlet, and the smoke inlet is set on the outermost flue gas chamber on one side The smoke outlet is arranged on the outermost smoke cavity on the other side; each smoke cavity is provided with a number of baffles that isolate the smoke cavity into several interconnected areas. In the present invention, a number of partitions are arranged in the furnace body to make the furnace body form a rotary structure, and the arrangement of the partitions in the present invention enables each flue gas chamber to come into contact with the inner wall of the furnace, so that the flue gas flows during the flow process. It can always be in contact with the inner wall of the furnace, and this structure effectively improves the heat exchange efficiency of the present invention.

Description

technical field [0001] The invention relates to a once-through hot water boiler, which belongs to the technical field of boilers. Background technique [0002] In boilers and industrial furnaces, hot water boilers are a common heating equipment with various structural forms. Shell boilers are widely used in fuel gas boilers, and the boiler steel consumption is relatively high. [0003] Once-through boilers are mostly used in large boilers, which have higher requirements for water quality and water system control. The miniaturized forced circulation once-through hot water boiler has a simple structure, low steel consumption, easy manufacture, and relatively high requirements for control and water quality. Low, the waste heat of the flue gas cannot be fully utilized; at the same time, a thicker furnace body is required to withstand greater pressure, which increases steel consumption and high cost, and needs further improvement. Contents of the invention [0004] The purpos...

AI Technical Summary

Problems solved by technology

The miniaturized forced circulation once-through hot water boiler has a simple structure, low steel consumption, easy manufacture, and relatively high requirements for control and water quality. Low, the waste heat of the flue gas cannot be fully utilized; at the same time, a thicker furnace body is required to withstand greater pressure, which increases steel consumption and high cost, and needs further improvement

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