Once-through hot water boiler

Abstract

The invention relates to a once-through hot water boiler. The once-through hot water boiler comprises a boiler body, wherein a coil pipe which is wound around the outer wall of the boiler body is arranged on the boiler body, and a liquid inlet and a liquid outlet are formed in the coil pipe; a plurality of partition plates which are arranged in the axial direction of the boiler body and are parallel to one another are arranged in the boiler body, and the boiler body is divided into a plurality of communicating smoke cavities in sequence in the radial direction by the partition plates; a smokeinlet and a smoke outlet are formed in the boiler body, the smoke inlet is formed in the smoke cavity at the outmost end of one side of the boiler body, and the smoke outlet is formed in the smoke cavity at the outmost end of the other side of the boiler body; and each smoke cavity is internally provided with a plurality of baffle plates which are used for dividing the smoke cavity into a plurality of communicating areas. According to the once-through hot water boiler, the plurality of baffle plates are arranged in the boiler body, so that the boiler body forms a rotary type structure; each smoke cavity can make contact with the inner wall of the boiler body according to the arrangement mode of the partition plates, so that the smoke can always be in contact with the inner wall of the boiler body in the flowing process; and the structure enables the heat exchange efficiency to be effectively improved.

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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