Umax Advanced Ceramic Shell and Tube Heat Exchanger
Umax® Advanced Ceramic Shell and Tube Heat Exchanger CGTher Ceramic. Graphite. Heat Exchangers. Process Equipment
Umax® Advanced Ceramic Shell and Tube Heat Exchanger CG Thermal’s Principal Design Engineer and partner, B. David Hudson, invented this technology in 1984, which won the 1988 Research and Development Magazine’s R&D 100 award, and that same year won Chemical Processing’s award as a major contribution toward more efficient and effective Plant Operations. Beryllium Processing CGTherm Ceramic. Graphite. Heat Exchangers. Process Equipment
Design Tubes have exceptional high hardness, strength, and thermal conductivity and are immune to erosion and corrosion Each tube can be individually replaced without disturbing the shell side Benefits Can operate at higher velocities with highly efficient heat transfer reducing required surface area Unconditional 2 -year warranty against corrosion and erosion Easily and quickly field serviceable and repairable Carbon steel shell with SST and lined options Multi-pass construction available ASME Code design CGTher Ceramic. Graphite. Heat Exchangers. Process Equipment
Defining the Structure and properties of Umax® Advanced Ceramic. • Umax® Advanced Ceramic is an ALPHA SINTERED form of Si. C. • Single phase - Less than 0. 2% free Si. Compared to reaction bonded which can contain 10% and higher. • Non-Porous- No need for fillers, like resins, glass, tungsten, etc. Each tube is individually tested to over 2, 000 psig. • Pressureless Sintered- No reaction bonding agent required. Holds high dimensional machining tolerances after sintering. • Self Bonding Grain Structure- Fine grains are sintered together at temperatures above 4, 000 Deg F. Extremely hard. CGTher Ceramic. Graphite. Heat Exchangers. Process Equipment
• Universally corrosion resistant HR/Nitric and other acid environments throughout the units pressure and temperature ratings. • Can even reliably perform in air temperatures in excess of 3, 450 Deg F. • Unconditional universal corrosion guarantee. • For all practical purposes it is 100% erosion resistant • 50% harder than WC, 10 x harder than stainless steel. • Excellent fouling resistance. • Can be hydro-blasted at high pressure without damage. • Exceptional Thermal Properties • High thermal conductivity, low thermal expansion rate, and strength properties combine for excellent resistance to thermal shock. CGTher Ceramic. Graphite. Heat Exchangers. Process Equipment
Umax Tubing – Alpha Sintered Silicon Carbide Alpha Sintered No Fillers Over 98% Theoretical Density No Free Silicon No trace Contaminations 50% Harder than WC HF, BR 2, HNO 3, Mixed acids, H 2 SO 4 and High fouling applications CGTher Ceramic. Graphite. Heat Exchangers. Process Equipment
Properties Comparison of Common CPI Materials Umax Advanced Ceramic Impervious Graphite Tantalum 304 SS Borosilicate Glass Specific Gravity 3. 1 1. 9 16. 6 8. 0 2. 2 Flexural (psi) 60, 000 6, 380 50, 750 75, 000 1, 000 Compressive (psi) 560, 000 11, 310 NA 75, 000 150, 000 Mod. Elast. (x 106 psi) 59 2. 3 27 28 98 CTE (10 -6 in/in f) 2. 2 1. 04 5. 8 9. 3 1. 8 Conductivity (btu/ft-hr F) 72. 6 58 32 9. 1 0. 67 CGTher Ceramic. Graphite. Heat Exchangers. Process Equipment
Umax® - The Material Replaces graphite, glass, reactive metal, Fluoropolymer, and nickel alloy material of construction. UNCONDITIONAL 2 YEAR GUARANTEE AGAINST CORROSION AND EROSION
Tube to Tubesheet Sealing Tubes can expand independently of tubesheet. Easy tube replacement if required. Back-up rings create captured sealing mechanism. CGTher Ceramic. Graphite. Heat Exchangers. Process Equipment
Tube to Tubesheet Sealing Each tube is sealed individually with a tube nut allowing independent tube movement in response to system stresses. CGTher Ceramic. Graphite. Heat Exchangers. Process Equipment
Field Servicable Clean tubes by removing clamp plate. Bolting ring Tube removal: If ever required, remains in place and shell side is not disturbed individual tubes can be replaced in the field simply and economically without the need for special tools and/or highly specialized welding procedures. CGTher Ceramic. Graphite. Heat Exchangers. Process Equipment
Unit Design Springs for thermal expansion Clamp Plate Bolting Ring Tubesheet (Typ. Both Ends) CGTher Ceramic. Graphite. Heat Exchangers. Process Equipment
ASSEMBLY PROCESS Carbon steel shell typical (lined, SST, and other optional FRP or carbon steel baffles typical (other options upon request) Tubes inserted into baffle cage assembly in shell. CGTher Ceramic. Graphite. Heat Exchangers. Process Equipment
ASSEMBLY PROCESS Installation of back-up ring and O-rings: Interference fit of back-up rings encapsulates o-rings CGTher Ceramic. Graphite. Heat Exchangers. Process Equipment
ASSEMBLY PROCESS Tube nuts installed: Tube nut individually seals each tube to the tubesheet. Bolting ring installed: Sealing shell from tube side. 2 -pass design shown CGTher Ceramic. Graphite. Heat Exchangers. Process Equipment
TYPICAL PROCESS HEAD DESIGNS CGTher Ceramic. Graphite. Heat Exchangers. Process Equipment
Final assembly and packaging CGTher Ceramic. Graphite. Heat Exchangers. Process Equipment
Design Tubes have exceptional high hardness, strength, and thermal conductivity and are immune to erosion and corrosion Each tube can be individually replaced without disturbing the shell side Benefits Can operate at higher velocities with highly efficient heat transfer reducing required surface area Unconditional 2 -year warranty against corrosion and erosion Easily and quickly field serviceable and repairable Carbon steel shell with SST and lined options Multi-pass construction available ASME Code design CGTher Ceramic. Graphite. Heat Exchangers. Process Equipment
Umax® Advanced Ceramic Shell and Tube Heat Exchanger Questions? Information? Thermal sizing? www. cgthermal. com joanb@cgthermal. com CGTher Ceramic. Graphite. Heat Exchangers. Process Equipment
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