A low-temperature multi-effect evaporative cooler body welding method

Abstract

The invention discloses a welding method for a low-temperature multiple-effect evaporative cooler body. The construction method comprises the following steps that (1), construction preparation is conducted; a welding technique is evaluated aiming at a bi-directional stainless steel material, and evaluation of the welding technique is used for guiding reasonable and effective setting of all parameters in the welding process; when a straight line is welded, alignment of effect bodies from number one to number seven is completed; and owing to the fact that the diameters of the effect bodies of an evaporator are large, argon inert gas is adopted to conduct protecting during welding, and anti-wind measures need to be installed on the two sides of the welding position. The welding method for the low-temperature multiple-effect evaporative cooler body has the advantages that through effective combination of the welding technique, the welding method and welding measures, the quality and working efficiency of welding are improved, the quality defect is reduced, and the qualification rate of welding at a time is increased.

Description

technical field [0001] The invention relates to a welding method, and more specifically, relates to a welding method of a low-temperature multi-effect evaporative cooler body during the welding process of special materials for seawater desalination. Background technique [0002] Seawater desalination is the use of seawater desalination to produce fresh water. It is an open-source incremental technology to realize the utilization of water resources. It can increase the total amount of fresh water without being affected by time, space and climate. The water quality is good and the price is becoming more and more reasonable. Stable water supply such as boiler make-up water. The process of obtaining fresh water from sea water is called desalination. The seawater desalination methods currently used include seawater freezing method, electrodialysis method, distillation method, and reverse osmosis method; crystallization method can also be used to desalinate seawater, that is, add...

AI Technical Summary

Problems solved by technology

[0003] At present, there is no completely unified welding method patent for the welding of duplex stainless steel in the body of the low-temperature multi-effect evaporative cooler. With the gradual scarcity of fresh water resources on the earth, the society's demand for seawater resources will form a development trend. How to effectively use seawater resources The applicability and the requirements for conveying equipment and pipelines will be more stringent during the application process. This invention patent is the research on the duplex stainless steel welding technology of the low-temperature multi-effect evaporative cooler body under this circumstance.

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