Water Heaters
TEA’S " SUPERHEATER":
The Ultimate in Direct Contact Water Heating When high volumes of hot water are needed, Thermal Engineering’s "SUPERHEATER" Direct Contact Water Heater should be your first choice. The near 100% energy efficiency can provide the most economical water heating costs. Traditionally, water heating has involved transferring all the heat thru one or two metal walls. Water quality, fouling, rust, etc. all combine to reduce the efficiency of the heat transfer process. The result is an exhaust stack gas temperature many hundreds of degrees above that of the incoming water to be heated. Direct contact water heaters have ended these problems! Since their commercial introduction during the energy crisis years of the seventies, thousands of these heaters have been installed and have resulted in unmatched levels of performance. Key "SUPERHEATER" Features Fully removable top. Full diameter access for internal servicing. Other heaters on allow access through stack ports, 18" diameter up to 200 hp heaters. Burner nozzle cooling. High velocity water cooling channels maintain inner liner at near cooling water temperature. No expensive heat shields or burner shrouds are required. Competitive heaters with poor cooling use a failure prone heat shield, which requires periodic maintenance. Combustion zone cooling. Computer designed high velocity combustion zone cooling. Metal temperatures never exceed 200 F with flame at 2600 F plus. Inlet fresh water distribution. Eliminates pressure sensitive spray nozzles – the major cause of heater shut down. Larger droplets all but eliminate mist discharge from the stack. Excellent water distribution over packed bed through entire burner range. No flow rate changes due to nozzle restrictions or pressure fluctuations. Changing hot water demands – 100% down to 25% are easily handled automatically. Fresh water manifold. Shipped fully assembled, tested and mounted. The control valves allow full range ability from high demand conditions (100%) to low hot water needs (25%) for a true 4:1 turndown ratio of plants flow-rate with full burner temperature control. Competitive heaters can only operate at rated water flows of the spray nozzle. A change of flow results in thermal cycling, a major cause of metal failure. Pre-mounted transfer pump for rapid heater installation. "SUPERHEATER" Benefits - Inlet fresh water flow distributor eliminates pressure sensitive spray nozzles – the major cause of heater shutdowns.
- Water flow controls operation, not pressure - Booster supply pump never required for operation, unlike competitive units.
- Factory piped and tested – only needs minor assembly, utility and stack connections to be operational.
- Fully self contained – all major operating parts, valves, controls included.
- Combustion zone and burner nozzle high velocity jacket cooling – unmatched in the industry.
- A superior design – overcomes other heater wall hot spot problems.
- High temperature alloy stainless steel in combustion zone - for longest trouble-free service.
- Easily removed discharge cone – provides full access to heater internals.
- Internal components fully removable – provides top to bottom access.
Water heaters, like steam boilers benefit greatly from modulating water and burner controls. Frequent on/off cycling of heaters causes thermal stresses that distorts metal, cracks welds, reduces efficiency and in general will shorten the heater life. "Smart Therm" eliminates this problem. Plant demands for hot water are matched with automatic flow controls valves. This smoothes out water make-up flow rates down to even 25% of full rated flows at the maximum temperature rise. No competitive heater can make this statement. Graphic Control Panel TEA’S Graphic Control Panel offers high quality graphic annunciation of critical heater functions without extra cost. Indication lights provide view of operating status of all support systems. Digital tank level, temperature and flow rate meters indicate exact system performance for easy system evaluation. DC-1 "SUPERHEATER" Sizing and Performance Data Superheater Output
(BTU/Hr.)* |
BHP
(Nominal) | Overall Dimensions | Water Heat Rate (GPM) |
Gas
Supply |
Water
Supply |
Stack Dia. |
Length |
Width |
Height | 60ºF Rise | 100ºF
Rise | 125ºF Rise | | 1,700,000 | 50 | 82” | 42” | 130” | 57 | 34 | 27 | 1.5” | 2” | 16” | | 2,500,000 | 70 | 84” | 42” | 130” | 83 | 50 | 40 | 2.0” | 2” | 16” | | 3,800,000 | 110 | 94” | 48” | 132” | 127 | 76 | 61 | 2.5” | 3” | 18” | | 4,400,000 | 130 | 100” | 54” | 134” | 147 | 88 | 70 | 2.5” | 3” | 20’ | | 5,100,000 | 150 | 107” | 54” | 134” | 170 | 102 | 82 | 2.5” | 3” | 20” | | 6,300,000 | 200 | 113” | 60” | 136” | 210 | 136 | 101 | 3.0” | 3” | 24” | | 8,000,000 | 250 | 119” | 66” | 138” | 267 | 160 | 128 | 3.0” | 4” | 24” | | 10,200,000 | 300 | 119” | 66” | 138” | 340 | 204 | 163 | 3.0” | 4” | 24” | | 12,700,000 | 400 | 162” | 82” | 153” | 423 | 254 | 203 | 3.0” | 4” | 24” | | 15,850,000 | 500 | 162” | 82” | 153” | 528 | 317 | 254 | 3.0” | 4” | 24” | *Normal high fire output – turndown ratios of 4:1 are standard without modification
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Thermal Engineering
