TDG
6Pages

Catalog excerpts

ADCA ADCATHERM TRAY TYPE DEAERATORS TDG DESCRIPTION The TDG series tray type thermal deaerators are designed to heat boiler feed water and reduce oxygen and carbon dioxide levels (oxygen levels in the feed water of less than 0,02 mg/l - 0,02 ppm can be achieved). Remaining oxygen can be completely removed using oxygen scavenging chemicals. Basically, the complete system consists of a storage vessel, a deaeration section and a vent. OPERATION Returning condensate and softened make-up water are introduced in the deaerator dome to be heated by a contact cascade steam heating system (counter-current flow). Most of the dissolved gases are liberated from the water at this point, and they are released to the atmosphere trough the flash steam vent line. The deaerated water then falls to the storage vessel below, where a steam blanket ensures that no gases are reabsorbed. A sparger pipe is installed inside the tank, at the bottom level, providing the necessary heating energy. A second low pressure steam supply may also be necessary. The complete unit is supplied including all the necessary instrumentation for temperature, pressure and level control, to be described in our offer depending on the operation conditions (see Table 1). MAIN FEATURES Turndown (max./min. flow) – 100:1. Long life expectancy. OPTIONS: Complete stainless steel construction. Complete system including all the necessary equipment. Two stage deaerators. Vent condenser for energy recover Steam boiler feed water. AVAILABLE MODELS: Flanged EN 1092-1 or ASME. ISO or NPT threaded sockets. Different connections on request. CONSTRUCTION: Carbon steel with internal stainless steel components. INSTALLATION: Deaerator dome – vertical installation. Storage vessel – cylindrical horizontal design. Final dimensions and connections according to the drawing supplied after order confirmation. VALSTEAM ADCA LIMITING CONDITIONS PS – Maximum allowable pressure TS – Maximum allowable temperature 120 ºC Minimum operating temperature: -10 ºC; Design code: AD-Merkblatt. Remark: other conditions and CE marking on request. We reserve the right to change the design and material of this product without notice.

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* Maximum flow rate in m³/h (heating from 10 ºC to 105 ºC). Remarks: d1 to d6 and certified dimensions supplied after complete data evaluation. THERMAL DEAERATOR DATA INQUIRY Make-up water pressure Make-up water temperature Make-up water flow rate Condensate return pressure Condensate temperature Condensate flow rate Saturated heating steam pressure Feed water tank required capacity Max. dearated water flow required VALSTEAM ADCA We reserve the right to change the design and material of this product without notice.

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ADCA TYPICAL INSTALLATION Thermal deaerator system with cold make-up water (without dome steam injection) If a high percentage of hot condensate is recovered, the direct steam injection in the deaerator tower is usually unnecessary, as the heating steam supplied trough the steam injection system is, in most cases, enough. For more detailed information please consult assembly drawing ADTDGV.04.2843. VALSTEAM ADCA We reserve the right to change the design and material of this product without notice.

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ADCA TYPICAL INSTALLATION Thermal deaerator system with cold make-up water (with dome steam injection) In systems where condensate return is negligible and/or high flow rates are involved, an additional dome steam injection should be provided. For more detailed information please consult assembly drawing ADTDGV.01.2597. VALSTEAM ADCA We reserve the right to change the design and material of this product without notice.

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ADCA TYPICAL INSTALLATION Thermal deaerator system with vent condenser Thermal deaerators, including ADCATherm STS series complete stainless steel heat exchanger. Make-up water crossing the heat exchanger will condense the flash steam, preventing energy waste and increasing performance of the whole system. For more detailed information please see assembly drawing ADTDGV.02.2841. VALSTEAM ADCA We reserve the right to change the design and material of this product without notice.

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ADCA TYPICAL INSTALLATION Thermal deaerator system with pre-heating make-up water heat exchanger Thermal deaerator with low pressure steam to water ADCATherm STS complete stainless steel heat exchanger, providing make-up water heating. For more detailed information please see assembly drawing ADTDGV.03.2842. VALSTEAM ADCA We reserve the right to change the design and material of this product without notice.

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TDG 6Pages

Catalog excerpts

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TDG
6Pages