High-pressure membrane-type deaerator
High adaptability: It can achieve deoxygenation under conditions of low‑temperature feedwater and high‑oxygen‑content feedwater, provided that a sufficient steam flow is maintained.
Low-pressure film-type deaerator
High adaptability: It can achieve deoxygenation under conditions of low‑temperature influent and high‑oxygen‑content influent, provided that a sufficient steam flow is maintained.
High-pressure built-in deaerator
Reduce costs associated with insulation, platforms, piping, and feedwater recirculation pumps.
Low-pressure internal deaerator
Reduce costs associated with insulation, platforms, piping, and feedwater recirculation pumps.
Regular blowdown expansion tank
The periodic blowdown expansion tank reduces the pressure and expands the volume of boiler blowdown water, thereby separating secondary steam from waste hot water. The secondary steam is discharged to the atmosphere or utilized as a heat source, while the waste hot water is typically routed to an effluent cooling pond and then discharged into the groundwater system.
Continuous Blowdown Expansion Tank
The continuous blowdown flash tank is connected to the boiler’s continuous blowdown outlet and serves to reduce the pressure and expand the volume of the boiler’s continuous blowdown before discharging it. The secondary steam is routed through a dedicated pipeline, typically to the deaerator, while the waste hot water is automatically discharged via a float‑type level control valve or an overflow‑adjustment valve, usually into a fixed‑drain flash tank, allowing the thermal energy to be recovered and reused. The continuous blowdown flow rate is automatically adjusted in response to changes in the boiler feedwater load, maintaining a relatively stable blowdown rate. By utilizing the secondary steam and waste hot water as heat sources, a portion of the heat lost in the boiler’s continuous blowdown can be recovered, thereby improving boiler efficiency.
Wastewater discharge tank
Saudi Qassim & Taiba 1,800 MW Combined-Cycle Power Plant Project
Closed expansion tank
Jirong Thermal
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