The water for the feeding of the thermal and thermoelectric power plants must be degassed, thus devoid of gas dissolved in it such as: oxygen, carbon dioxide, etc.
The most practical way to achieve this result is to heat that is based on the principle of water boiling at the operating temperature.
For the gas separation it is necessary that the water reaches the maximum free surface of expansion before and during the heating by rain or spray system.
The physical-thermal getter ns. production to optimize the increase of the water surface provides both the spray system and, in cascade, sprinklers plates system , with variable water velocity from 15 to 25 m3 / m2 a.c.
The degassed water with this system assumes a value of gas dissolved residue limit of 0.02 ppm c.
fdt srl produces two types of standard getters:
- "With turret" type dishes with sprinklers plates system
- "Spry" type with automatic spray nozzles.
The execution is scheduled with PED or similar testing for pressures greater than 1.5 ATA and atmospheric pressures below 1.5 ATA
The water demineralizing Plants eliminate all the salts contained in it. Water obtained by this process, meets the needs of hospitals, chemical processing, power plants etc. They are essentially constituted by a heat exchanger containing the cationic resins and a heat exchanger containing the anionic resins. The heat exchangers can be made in:
- Ebonized steel
- Acid-resistant steel.
Also they can be automated by:
- Plurivie valve
- Individual valve for easier operation and maintenance.
The price difference between these types of construction, reflects the best quality, reliability and durability.
fdt Ltd. builds, at its plant in Brugherio, all three versions, to meet all customer needs