Combined exterior structural heat pipe for vertical heat-pipe condensers and manufacturing method thereof

Abstract

The invention relates to a combined exterior structural heat pipe for vertical heat-pipe condensers. The combined exterior structural heat pipe for vertical heat-pipe condensers comprises a pipe body including a condensing segment and an evaporating segment. An exterior fin structure is arranged outside the pipe body, corresponding to the condensing segment, and an exterior grooved structure is arranged outside the pipe body, corresponding to the evaporating segment. The invention further relates to a manufacturing method of the combined exterior structural heat pipe for vertical heat-pipe condensers. The method includes the steps: manufacturing of the pipe body, manufacturing of an exterior fin unit, an upper end cover and a lower end cover, manufacturing of the exterior fin structure, and manufacturing and packaging of an absorbent core. The combined exterior structural heat pipe for vertical heat-pipe condensers and the manufacturing method thereof have the advantages that manufacturing process is simple and reliable, the combined exterior structural heat pipe provides a vertical heat-pipe condenser with good condensing effect and maintenance simplicity, and the combined exterior structural heat pipe and the manufacturing method thereof belong to the technical field of parts for condensers.

Description

technical field [0001] The invention relates to parts of a condenser, in particular to a composite outer structure heat pipe used in a vertical heat pipe condenser and a manufacturing method thereof. Background technique [0002] The equipment that realizes heat transfer between two materials in industrial production is collectively called a condenser. A condenser is a general process equipment commonly used in petrochemical, metallurgy, electric power, light industry, food and other industries. Condensers account for about 40% of the total equipment in oil refining and chemical plants. In recent years, with the development of energy-saving technology, the application field has been continuously expanded, and the use of condensers for high-temperature and low-temperature heat energy recovery has brought significant economic benefits. Condenser is a typical process equipment, which is widely used, and almost any chemical production process cannot do without it. [0003] The...

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Problems solved by technology

[0004] At present, the main heat transfer element used in the heat pipe condenser is a gravity heat pipe, but this kind of heat pipe does not have a good strengthening effect on the evaporation, condensation and reflux of the liquid working medium in the pipe, which is not conducive to increasing the heat transfer performance of the heat pipe and the condenser. overall performance of

Moreover, many heat pipes used in condensers are bare pipes with no external structure or single-structure heat pipes with fins processed only in the condensation section of the pipe body, while there is no processing and strengthening structure in the evaporation section of the heat pipe, which is not conducive to condensation. The steam in the condenser condenses and exchanges heat on the surface of the evaporation section of the tube body. The liquid in the condenser on the tube body tends to form a relatively thick liquid film layer. The larger the condensation amount, the thicker the liquid film layer, which greatly reduces condensation. The heat transfer coefficient of the steam in the condenser is detrimental to the overall performance of the condenser

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