Adcatherm tray type deaerators TDG
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.
- Turndown (max./min. flow) – 100:1.
- Long life expectancy.
- Complete stainless steel construction.
- Complete system including all the necessary equipment.
- Two stage deaerators.
- Vent condenser for energy recover
- Steam boiler feed water.
- TDG – deaerator dome.
- Flanged EN 1092-1 or ASME.
- ISO or NPT threaded sockets.
- Different connections on request.
- Carbon steel with internal stainless steel components.
- Deaerator dome – vertical installation.
- Storage vessel – cylindrical horizontal design.
- Final dimensions and connections according to the drawing supplied after order confirmation.
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).