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Shell and Tube Silicon Carbide Heat Exchangers

High temperature RbSiC SiSiC ceramic Profiled supports

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For very aggressive chemicals like nitric and hydrofluoric acid the best choice for heat exchanger materials is silicon carbide. This material does not only exhibit excellent corrosion resistance it also has very good thermal conductance comparable to graphite and good thermal shock resistance. The directly sintered silicon carbide tubes are held in place at each end of the shell with PFA lined steel tube sheets, they have special FFKM seals sealing the tubes into the tube sheets with an intermediate SiC plate which doubles the amount of seals. This unique seal design is patented and the seals are the cumulation of SGLs many years experience. With all wetted parts being PFA, FFKM and silicon carbide the exchangers are ready to handle almost any very corrosive and toxic chemicals at pressures up to 8 bar g and 180 degrees C. The silicon carbide material is very hard and an excellent choice for conveying abrasive chemical solutions.

The heat exchangers are also suitable for use in high purity applications like semiconductor industries and are also FDA approved for use within the pharmaceutical sector.

 Ceramic heat protection tube has the following advantages:

 (1) the use of ceramic heat protection tube method is direct, simple, fast, efficient, environmental protection and energy saving. Don't need to be cold and high temperature protection, low maintenance cost, don't need to make any operation ceramic heat protection tube. Suitable for all kinds of environment of industrial kiln of gas waste heat recycling, especially solve the various problem of high temperature industrial kiln waste heat temperature too high can't use;

(2) countries require ceramic heat protection tube temperature 1000 ℃ or higher, due to its high temperature resistance, so they can be placed in high temperature area, the higher the temperature, so the heat exchange efficiency, the better, the more energy saving.

(3) high temperature circumstances instead of metal heat protection tube;

(4) solve the problem of chemical industry heat exchange, corrosion resistance;

(5) ceramic heat protection tube strong adaptability, high temperature resistant, corrosion resistant, high temperature and high strength, good oxidation resistance, thermal shock stability, long service life.

Ceramic heat protection tube is widely used in iron and steel, machinery, building materials, petrochemical, non-ferrous metal smelting and other industries of all kinds of heating furnace, hot stove, heat treatment furnace, furnace, baking equipment, melting furnace and soaking pit, oil and gas boiler furnaces, the technology is through the reversing device makes two endothermic heat regenerator alternation, maximize the recovery of flue gas heat, and the combustion air and gas heated to 1000 ℃above, even if low calorific value of inferior fuel (such as blast furnace gas) can realize stable and efficient combustion fire, can save fuel 40 ~ 70%.Production increased by more than 15%, fell by more than 40%, oxygenation loss of billet NOx emission is less than 100 PPM, flue gas emission temperature below 160 ℃, greatly reduce the greenhouse effect of the earth.

• Support beams
• Profiled supports
• Rollers and tubes
• Batts and plate setters
• Custom kiln components