Material description of main parts of plate heat exchanger

24-03-2021

From the perspective of the development history of plate heat exchangers, improving heat exchange efficiency is the ultimate goal of the development of heat exchangers. In the early stage of the development of plate heat exchangers, due to technical limitations, the development of plate heat exchangers was mainly about the structure of the plate heat exchanger and the plate type of the plate heat exchanger, which was calculated and analyzed through thermal experiments. After entering the modern era, the development of plate heat exchangers mainly focused on the selection of component materials and the optimization of structural details.

Plate heat exchanger plate material and main application conditions

1. Stainless steel heat exchanger plates are mainly used in water purification, river water, edible oil, minerals and other conditions;

2. Titanium and titanium-palladium alloy heat exchanger plates are mainly used in conditions such as dilute sulfuric acid and inorganic aqueous solutions;

3. Nickel heat exchanger plates are mainly used in conditions such as high temperature and high concentration of caustic soda;

4. Hastelloy heat exchanger plates are mainly used in conditions such as concentrated sulfuric acid and inorganic aqueous solutions;

5. Molybdenum heat exchanger plates are mainly used in conditions such as dilute sulfuric acid and inorganic aqueous solutions;

6. Graphite heat exchanger plates are mainly used in conditions such as hydrochloric acid, medium concentration sulfuric acid, phosphoric acid, and hydrofluoric acid;

Sealing rubber gasket material and main application conditions of plate heat exchanger

1. The NBR heat exchanger gasket can withstand the highest temperature between 110 degrees and 140 degrees, which is mainly used in water, sea water, mineral water, salt water and other conditions;

2. EPDM heat exchanger gaskets can withstand the highest temperature between 150 degrees and 170 degrees, mainly used in hot water, steam, acid, alkali and other conditions;

3. FKM heat exchanger gaskets can withstand the highest temperature of 180 degrees, mainly used in high temperature water, acid, alkali, organic solvents and other conditions;

4. Neoprene heat exchanger gaskets can withstand the highest temperature of 130 degrees, mainly used in acid, alkali, minerals, lubricating oil and other conditions;

5. Silicone rubber heat exchanger gaskets can withstand the highest temperature between 180 degrees and 220 degrees, mainly used in food, oil, fat, alcohol and other conditions;

6. Asbestos rubber heat exchanger gasket, the highest temperature it can withstand is 260 degrees.

The material of the frame plate of the plate heat exchanger

1. The standard heat exchanger frame plate material is generally carbon steel;

2. The special heat exchanger frame plate material is semi-stainless steel or all stainless steel.

Plate heat exchanger interface material

1. The standard interface material is stainless steel bushing;

2. Special interface materials, such as nitrile rubber, EPDM, Hastelloy, titanium and other alloys.

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