Advantages immersion heat exchangers with ceramic heating pads

Advantages and disadvantages of immersion heat exchangers with ceramic heating pads

advantage

(1) Simple structure, low price, convenient manufacturing, installation, cleaning, and maintenance.

(2) The material range is wide, and the coil can be made of any material. For corrosive media, cast iron, glass, ceramics, etc. can be used to save precious metals.

(3) It can withstand high voltage and is convenient for operation and management.

(4) It can be used for fluids that are prone to crystallize and clog the heat exchanger due to low temperatures during the cooling process. At the same time, it has certain safety for the condensation and cooling of organic chemical products prone to fire.

shortcoming

(1) The metal consumption per unit heat transfer surface is large, requiring about 100kg of steel per square meter of heat transfer area, which is about three times that of tubular heat exchangers.

(2) Large volume, large footprint, and only 1 Sm 'of heat transfer area per cubic meter of cooler volume.

(3) The heat transfer coefficient is low, generally not more than 175-232W/(m2. K). This is mainly because the flow rate of the cold fluid in the container is too small. When used for gas condensation, a portion of the heat transfer area in the lower coil is occupied by the condensate, which reduces the heat transfer area, resulting in low heat transfer efficiency. Therefore, it is not suitable for manufacturing large heat exchangers.

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