Silicon carbide shell and tube heat exchanger

Description

Silicon carbide/SiC heat exchanger is a new shell & tube type heat exchanger that utilizes silicon carbide material as heat transfer element/tube. It is especially suitable for extreme environments of high temperature, high pressure, strong corrosion and high wear in industries such as chemical, petroleum, pharmaceutical and metallurgical industries. Its excellent heat exchange efficiency can meet the urgent needs of energy saving, emission reduction and environmental protection.

Like other tube-shell type heat exchanger, SiC heat exchanger consists of shell/body, SiC tube, lid/head, baffle, tube plate，seal & connected flange. The sealing of the SiC tubes is based upon a double-sealed o-ring system on both sides of tubes. Double tube plate design makes it possible to separate the process fluid and the service fluid with a separate chamber, so that no mix will occur between the two fluids when o-ring system was damage & leakage . The chamber of shell can be pressurized at a higher pressure than single-seal system to avoid leakage of o-ring system.

Silicon carbide/SiC is a single-phase, pressureless sintered, high-purity, fine-grained and extremely low porosity engineering ceramic with excellent properties such as corrosion resistance, high temperature resistance, high thermal conductivity, high hardness and wear resistance. It can be applicate as an excellent substitute material for graphite, stainless steel, precious metal as titanium, tantanum, hastelloy etc., fluoroplastics/PTFE and other traditional materials

Silicon carbide/SiC shell-tube type heat exchanger canbe special designed for various applications. Suitable components should be assembled depending on charactor of specific process/working medium. The shell & plate material canbe use by stailess steel, PTFE lined steel，glass lined steel, precious metal, alloy metal & ceramic according to the requiements of anti-corroson & working temperature.

PRODUCT SPECIFICATION

PROPERTY OF SIC

ADVANTAGE OF PRODUCT

High Thermal Conductivity - The thermal conductivity of SiC is much higher than other corrosion-resistant materials. When apply as heat transfer element in heat exchangers, it uses less heat exchange area under the same heat transfer efficiency, allowing smaller size and reducing space occupation.

Outstanding Corrosion Resistance - silicon carbide material has charactor of extremely high corrosion, oxidation and erosion resistance for high concentration of sulfuric acid, nitric acid, phosphoric acid, mixed acid, strong base, oxidant, etc. It is only the type anti-corrosion ceramic material that resistant to hydrofluoric acid.

Excellent wear resistance and permeability resistance - SiC tube have excellent wear resistance and permeability resistanceunder extreme high temperature and high pressure conditions. SiC tube canbe allowed medium to pass with high speed.

Anti- static - Silicon carbide is electrically conductive material and can not accumulate static.

Low Comprehesive Cost - The comprehesive operating cost of silicon carbide/SiC heat exchanger is lower than graphite and metal type.

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