Boiler Stainless Steel Condenser , Horizontal Water To Water Heat Exchanger

Tube Condensing Unit Marine Condenser

Shell and Tube Heat Exchanger

Shell and tube heat exchanger in the production, the tube and the tube of the general use of manual arc

welding, weld shape there are different degrees of defects, such as depression, pores, slag, etc., the

distribution of weld stress is not uniform.

When used in the tube part of the general contact with the industrial cooling water, and industrial cooling

water impurities, salts, gases, microorganisms will constitute the tube and weld corrosion, which is what we

often say electrochemical corrosion.

Studies have shown that industrial water, whether fresh or seawater, will have a variety of ions and

dissolved oxygen, which chloride ion and oxygen concentration changes, the corrosion of metal plays an

important role in the shape.

In addition, the complexity of the metal structure will also affect the corrosion pattern. Therefore, the

corrosion of the tube plate and the pipe weld is mainly pitting corrosion and crevice corrosion. From the

outside, the tube plate surface will have many corrosion products and accumulation of objects, the

distribution of the size of the pit.

When the sea water as the medium, but also produce galvanic corrosion. Chemical corrosion is the

corrosion of the medium, the heat exchanger tube board contact with a variety of chemical media, will be

subject to chemical corrosion.

In addition, the heat exchanger tube plate and the heat transfer tube will produce a certain degree of

bimetallic corrosion.