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
GEA 洞察
定制挤奶设备支持奶牛和农场主的福祉
健康快乐的奶牛是成功和可持续牛奶生产的关键。因此，保持奶牛健康是每个奶农努力的核心。奶牛的健康受到许多因素影响，例如根据奶牛个体需求进行适当喂养、良好的饲养条件以及新鲜的空气、水和光照。而且，挤奶方式对奶牛的健康状况也有很大的影响。GEA 因其“优质挤奶理念”而闻名，不断致力于进一步发展，并在动物健康和牛奶质量方面取得更好的成果。
利用 GEA 的整体工程解决方案实现净零排放
各行各业都在努力实现净零排放目标，同时遵守严格的脱碳法规和立法。与此同时，公司必须平衡日益增长的质量、产品开发和工艺优化需求，此外，还必须努力提高盈利能力。应对这一挑战需要采取 GEA 提供的协作和整体方法。
在餐桌上享用…新食品：打造我们食品的未来
咖啡、可可、牛奶、肉类、鱼类和蛋类 - 这些日常主食在很大程度上依赖集约农业。随着新食品技术的兴起，我们有了更多可持续的替代品。我们采访了 GEA 液体、发酵和灌装部门的高级副总裁 Reimar Gutte 博士，探讨其中的可能性和政策。
