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Serpentuator, Serpentine tubes, S-Shape Tubes

In the process of boiler production, almost all appliances are made of tubes. Some tubes are named as serpentine tubes because they are S-shaped. Serpentuator is for convection heating surface of the boiler.

Description

In the process of boiler production, almost all appliances are made of tubes. Some tubes are named as serpentine tubes because they are S-shaped.

The serpentine tube is mainly composed of tubes, connecting accessories and hanging devices. The components of the serpentine tube structure in the boiler generally include the boilers superheater, reheater, and economizer.

The function of the superheater is to heat the saturated steam into a certain temperature of superheated steam. According to the different layout position and heat transfer method, the overheating is divided into the rear panel superheater, the final stage superheater, the vertical low temperature superheater and the horizontal low temperature superheater.

The reheater is generally used in high-pressure large-scale power station boilers. Its function is to return the steam that has done part of the work in the high-pressure cylinder of the steam turbine to the boiler for reheating, and then return it to the middle and low-pressure cylinders of the steam turbine to continue working. According to its heat transfer method and layout position, it is divided into wall radiant reheater, Rear panel reheater, final stage reheater, etc.

The economizer is installed in the flue at the end of the boiler, and its function is to use the delayed waste heat to heat the feed water, To achieve the purpose of saving fuel.

Serpentuatorserpentuator

A tube that is circuitous in a plane many times. The convection heating surface of the boiler, such as economizer, superheater and reheater, etc., the pass band mostly adopts the structure of serpentine tube, which can be arranged horizontally and vertically. The vertical serpentine tube is easy to accumulate water in the tube after the furnace is shut down, but it is convenient to support and hang. The longitudinal pitch of the serpentine tube is related to the radius of the bend, R, which is generally not less than 1.5 times the outer diameter to ensure the quality of the bend.

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