Steam conveying energy-saving thermal-insulation pipeline used for zinc sulfate production

Abstract

The invention discloses a steam conveying energy-saving thermal-insulation pipeline used for zinc sulfate production. The steam conveying energy-saving thermal-insulation pipeline comprises a horizontal conveying pipe, the inner wall of the horizontal conveying pipe is coated with an anticorrosive layer, the outer wall of the horizontal conveying pipe is sleeved with a thermal-insulation layer, awater diversion groove is formed in the bottom of the thermal-insulation layer, the outer surface of the thermal-insulation layer is sleeved with a damp-proof layer, and the outer surface of the damp-proof layer is sleeved with an outer protective barrel. Accumulated water flowing into a drainage pipe is automatically discharged and prevented from accumulating in the thermal-insulation layer and reducing the effect of thermal insulation; through the outer protective barrel and the damp-proof layer, the thermal-insulation layer is wrapped, it is avoided that the temperature of steam is lost inpenetration into the thermal-insulation layer and external temperature affects the temperature of the steam inside the pipe, and accordingly the effect of thermal insulation is improved. Meanwhile, the inner wall of the horizontal conveying pipe is coated with the anticorrosive layer, in this way, the corrosion resistance of the horizontal conveying pipe is improved, the service life of the horizontal pipe is prolonged, and the period of thermal-insulation effectiveness is prolonged. Nuts are detached to separate an upper protective wall and a lower protective wall to replace the thermal-insulation layer, so that maintaining is convenient.

Description

technical field [0001] The invention relates to the technical field of steam transportation and heat preservation pipelines, in particular to an energy-saving and heat preservation pipeline for steam transportation used in the production of zinc sulfate. Background technique [0002] In the production process of zinc sulfate, it is necessary to carry out alternating cold and heat through the transmission of steam, and the steam transmission insulation pipe fittings have good mechanical properties and thermal insulation properties, usually can withstand high temperatures of 120 ° C, through modification or combination with other insulation materials It can withstand high temperature of 180°C. After long-term use, the existing steam transportation insulation pipe fittings are corroded and prone to steam leakage, which leads to the reduction of the insulation capacity of the insulation layer on the outside of the pipeline after absorbing water. In addition, the existing steam tr...

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Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides an energy-saving and thermal insulation pipeline for steam transportation for the production of zinc sulfate. The insulation capacity of the outer insulation layer decreases after absorbing water. In addition, the insulation layer of the existing steam transmission insulation pipe fittings is difficult to install and disassemble, resulting in difficult maintenance.

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