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ZeroGas Thermophysical Deaerators

The thermophysical deaerator aims to remove dissolved gases (carbon dioxide and oxygen) from boiler feed water, thus reducing the risk of corrosion within the thermal cycle.

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Deaeration happens by spraying water and making it fall in a contact section. At the same time, steam acts as a stripping and heating medium in counterflow.

Cannon Artes has proprietary thermophysical deaerator technology called ZeroGas. Different deaerators can fall under the ZeroGas Deaeration technology.

In the Spray & Tray configuration, the degassing process is achieved in the deaerating tower, where make-up water is atomized on a set of special “structured packing.” This increases the contact between water and steam, where dissolved gases are stripped and vented with steam.

According to the design capacity and steam flow, the deaerating tower may be arranged vertically or horizontally to implement a larger mass and heat transfer surface.

Siamo in grado di fornire degasatori “a spruzzo” che combinano le sezioni di degasaggio e stoccaggio in un unico serbatoio con un design molto efficiente, dimensioni più compatte e un peso ridotto.

Siamo il vostro partner ideale anche per i degasatori integrali che possono essere installati direttamente su un LP drum delgeneratore di vapore a recupero di calore, con il vantaggio di utilizzare il vapore prodotto all’interno del tamburo stesso e risparmiare un’ulteriore sezione di stoccaggio. Si tratta di un’applicazione critica, poiché il flusso di vapore all’interno della torre di degasazione è determinato dalla perdita di pressione attraverso la sezione di trasferimento di massa (e dalla temperatura differenziale, poiché il sistema è in equilibrio liquido-vapore).

Qualunque sia la vostra esigenza di degasaggio, siamo in grado di aiutarvi con la nostra competenza.

ZeroGas Deaearation Technology

ZeroGas thermophysical deaeration is a specific technology in which dissolved gases are removed from the liquid phase by reducing the partial pressure of oxygen and carbon dioxide over the liquid surface by replacing air with steam.

To establish the equilibrium for oxygen and carbon dioxide between the liquid and vapor phases, the contact area is increased by spraying the liquid and making it fall on a proprietary structured packing. Steam is employed as a stripping and heating medium because the solubility of gases is reduced at higher temperatures.

Therefore, operation at higher-than-atmospheric pressures enables the establishment of more favorable equilibrium conditions because of the decreasing solubility of gases at increasing temperatures.

Our designs reduce dissolved oxygen content in the water to less than 7 ppb O2 and minimize the vented steam flowrate with a significant savings of steam consumption.