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Seawater desalination corrosion test method

A corrosion test, seawater technology, applied in weather resistance/light resistance/corrosion resistance, measuring devices, instruments, etc., can solve problems such as overweight design, increased equipment cost, thickened corrosion allowance, etc.

Active Publication Date: 2021-02-26
XIAN UNITED PRESSURE VESSEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Increasing the thickness of the material far exceeds the design thickness, and thickening the corrosion allowance will make the whole design too heavy, increase the cost of the whole set of equipment, limit the capacity of the unit, and affect its use in some specific environments such as ships

Method used

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  • Seawater desalination corrosion test method
  • Seawater desalination corrosion test method
  • Seawater desalination corrosion test method

Examples

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Embodiment Construction

[0110] Such as figure 1 , figure 2 , Figure 8 and Figure 9 Shown is a seawater desalination corrosion test method, the device used in the method includes a test box, a wire mesh demister mechanism 10 and a spray mechanism arranged in the test box, the wire mesh demister mechanism 10 is located at the top of the test box, the wire mesh demister mechanism 10 is higher than the spray mechanism, and the first hanging piece assembly and the second hanging piece assembly are sequentially arranged in the test box from top to bottom. And the third hanging piece assembly, the first hanging piece assembly is located between the wire mesh demister mechanism 10 and the spray mechanism, the third hanging piece assembly is located at the bottom of the test box, the The second hanger assembly is located between the spray mechanism and the third hanger assembly, the spray mechanism is higher than the second hanger assembly and the third hanger assembly, and the first hanger The assembl...

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Abstract

The invention discloses a seawater desalination corrosion test method. The method comprises the following steps: 1, mounting a hanging piece assembly in a first corrosion test box; 2, mounting a hanging piece assembly in a second corrosion test box; 3, connecting a seawater desalination corrosion testing device; 4, testing the hanging piece assemblies; and 5, obtaining the corrosion rate. The method is reasonable in design, the test piece is convenient to mount, hang and take, a good gas-phase environment, a gas-liquid-phase environment and a liquid-phase environment can be provided, the corrosion rate of the test piece in the gas-phase environment, the gas-liquid-phase environment and the liquid-phase environment is tested, the corrosion behavior of the test piece material is convenientlyand deeply researched, and a basis is further provided for selection of materials used by seawater desalination equipment.

Description

technical field [0001] The invention belongs to the technical field of seawater desalination material corrosion, and in particular relates to a seawater desalination corrosion test method. Background technique [0002] Seawater desalination is the use of seawater desalination to produce fresh water. The technical process of separating the salt and water from seawater to obtain fresh water and concentrated brine from it. There are mainly distillation, reverse osmosis, electrodialysis and so on. Distillation is the desalination process and the main source of fresh water in most Gulf countries. Its system is stable, reliable and has high fresh water production capacity. [0003] However, in its long-term operation, corrosion still poses a serious threat to the entire process, especially in the heat recovery stage. Regular shutdown and maintenance have certain influences and constraints on the long-term efficient operation of the entire system. Increasing the thickness of t...

Claims

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Application Information

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IPC IPC(8): G01N17/00
CPCG01N17/00G01N17/002Y02A20/124Y02A20/131
Inventor 崔少平徐克叶建林孙万仓李强张成郗大来李宁童路贺旭明左彬
Owner XIAN UNITED PRESSURE VESSEL CO LTD
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