Cooling & Quenching
Gas conditioning tower (GCT)
Process cooling and Zero Liquid Discharge (ZLD) with Gas Conditioning Towers (GCT)
Gas conditioning towers (GCT) are used in industrial applications to cool gases upstream of electrostatic precipitators / bag filters for effective temperature control, gas volume reduction and humidification by the evaporation of water. GEA provide the two available atomization technologies utilized in the evaporative cooling process are hydraulic atomization and twin-fluid atomization. Key parameter for GCT sizing is in addition to the amount of flue gas, inlet and outlet temperature mainly the attainable droplet size and the associated energy consumption.
Key features:
- Low maintenance and low maintenance costs
- Compact design
- Cleaning function available only after a specific deadtime
Working Principle
Working Principle of Gas Conditioning Towers
Hydraulic atomization with single fluid, spillback nozzles with larger droplet sizes provide less energy consumption but require a larger casing design and more purity on the cooling water. The amount of liquid injected is adjusted via a control valve in the spillback line, whereby part of the flow is taken from the inlet flow rate and returned to the buffer tank.
Twin fluid technology utilizes compressed air or steam to atomize the water into droplets via a spray injection nozzle/lance as well. The water and compressed air (the two fluids) combine inside the nozzle and exit into the flue gas stream. Smaller droplet sizes lead to smaller casing design and even wastewater can be used for Zero Liquid Discharge (ZLD) where recovered waste heat supports efficient evaporation of water for compliance with wastewater discharge limits.
The GCT casing structural design covers full under pressure of ID fan and is providing adequate gas distribution with deflection-, guide- and perforated sheets in the inlet area.
The transport of dust from the housing is taken into account for possible malfunctions with a reversible paddle screw and motor-driven double pendulum flaps on both sides.
Downloads
Productos relacionados
Sistemas de inmersión de gas caliente
Tubo de lavado en posición vertical con entrada de gas desde arriba y boquillas atomizadoras dispuestas radialmente en el tubo por debajo de la entrada de gas.
Columnas de refrigeración
Tubo vertical con entrada de gas desde abajo y un trabajo radial del líquido de lavado desde arriba por toda la sección transversal del tubo.
Torre de inmersión GEA
La rápida refrigeración de inmersión de los caudales de gas se utiliza en una serie de aplicaciones esenciales de las industrias de procesos. La selección y dimensionamiento de las boquillas atomizadoras es una de las decisiones más importantes para diseñar el sistema. El diseño de la torre de inmersión GEA consiste de un recipiente abierto en qu...
GEA Insights
Shifts in food packaging: 4 trends
Thermoforming has long played a central role in food packaging. Now it is facing a major shift. As regulations tighten, materials evolve and costs rise, form fill seal lines must do more than run reliably – they now shape how food stays fresh, affordable and recyclable. Take a look at the key thermoforming trends informing the food packaging and delivery landscape.
Almacenamiento de fruta en Betko: Control desde el momento álgido de la cosecha hasta su distribución global
Desde los huertos de Ciudad del Cabo hasta las góndolas de las tiendas en 40 países, la empresa sudafricana de envasado Betko ha construido su negocio en base a la frescura, puntualidad y fiabilidad. Gracias a la tecnología de refrigeración en atmósfera controlada de GEA, la empresa puede ahora almacenar manzanas y peras durante un máximo de 14 meses y reducir el consumo energético en un 20%, todo ello gracias a nuestra colaboración de más de 30 años.
