HP Dosing System by Premix Technologies: Precision Boiler Feedwater Treatment

Introduction: Optimizing Boiler Feedwater with High-Pressure Dosing

In power plants, maintaining proper pH levels in boiler feedwater is critical to prevent corrosion, scaling, and equipment damage, ensuring efficient steam generation and long-term operational reliability. High-pressure (HP) dosing systems deliver precise amounts of chemicals, such as ammonia, phosphates, or caustic soda, to neutralize acidic conditions, inhibit scale formation, and protect boiler tubes and turbines. Accurate dosing and uniform chemical mixing are essential to avoid overdosing, which can lead to chemical waste or system inefficiencies.

Premix Technologies, based in Ahmedabad, Gujarat, India, designs advanced HP Dosing Systems for power plant boiler feedwater treatment. Our systems integrate agitators for homogeneous chemical mixing, delivering precise dosing under high-pressure conditions to maintain optimal pH levels (typically 8.8-9.2 for high-pressure boilers). With robust safety features and global standard compliance, we provide reliable solutions for thermal, nuclear, and combined-cycle power plants.

Why Choose Premix Technologies for HP Dosing Systems?

Premix Technologies offers innovative, safe, and efficient dosing solutions, distinguished by:

1. Precision Dosing and Mixing for Optimal pH Control
   
   • Accurate Chemical Delivery: Our systems dose chemicals (e.g., ammonia: 0.1-2 ppm; phosphates: 1-5 ppm) with ±0.5% accuracy, tailored to feedwater flow rates, using API 675-compliant metering pumps.
   • Homogeneous Mixing: Integrated agitators with propeller or turbine impellers ensure uniform blending of chemicals in storage tanks, preventing sedimentation of phosphates or concentration gradients in ammonia solutions.
   • Real-Time pH Adjustment: Inline pH sensors and flow meters enable automated dosing control, maintaining pH within tight ranges to prevent corrosion and scaling.
2. Robust Safety and Regulatory Compliance
   
   • Explosion-Proof Design: Certified to ATEX/IECEx Zone 1/2, our systems ensure safe operation in high-risk power plant environments.
   • Material Compatibility: Corrosion-resistant materials (e.g., SS316L, Hastelloy, PTFE) withstand aggressive chemicals like caustic soda, ensuring system durability.
   • Safety Mechanisms: Includes pressure relief valves, leak detection, spill containment drip pans, and emergency shutdown (ESD) systems to mitigate risks from hazardous chemicals.
   • Industry Standards: Compliant with API 675, ASME B31.3, ISO 9001, and NACE MR0175, ensuring adherence to power plant safety and environmental regulations.
3. High Reliability and Operational Efficiency
   
   • High-Pressure Operation: Engineered for pressures up to 400 barg, suitable for high-pressure boiler feedwater systems in power plants.
   • Continuous Operation: Designed for 24/7 performance, handling flow rates up to 5000 m³/hr in demanding power plant settings.
   • Low Maintenance: Durable components, including robust agitators and modular skids, reduce downtime, ideal for continuous operations.
   • Smart Automation: PLC-based controls with SCADA HMI enable real-time pH monitoring, automated dosing, and remote diagnostics for efficient operation.
4. Customizable, Turnkey Solutions
   
   • Tailored Design: Systems are customized for specific flow rates, chemical types (e.g., ammonia, phosphates, NaOH), and pressures, meeting unique power plant requirements.
   • Skid-Mounted Modularity: Compact skids simplify installation and integration into boiler feedwater systems, with robust piping for leak-free operation.
   • Comprehensive Support: From 3D modeling to commissioning, we provide training, maintenance, and spare parts support for long-term reliability.

Key Applications

Premix Technologies’ HP Dosing Systems are vital for:

• Boiler Feedwater Treatment: Maintains pH and prevents corrosion/scaling in high-pressure boilers for thermal and nuclear power plants.
• Steam Generation: Ensures water chemistry for efficient steam production, protecting turbines and heat exchangers.
• Condensate Treatment: Neutralizes acidic condensate to prevent corrosion in return lines.
• Cooling Water Systems: Adjusts pH to minimize scaling in cooling towers and associated systems.
• Water Treatment Plants: Supports pH control in power plant water treatment processes for regulatory compliance.

Technical Specifications

Our HP Dosing Systems are engineered for precision, safety, and durability, with specifications optimized for power plant applications:

Additional Benefits

• Chemical Versatility: Supports ammonia, phosphates, caustic soda, and other pH control agents with adjustable dosing profiles.
•  High-Pressure Capability: Operates at pressures up to 400 barg, ideal for high-pressure boiler systems.
• Environmental Compliance: Precise dosing and spill containment minimize chemical overuse, supporting regulatory standards.
• Global Standards: Meets API, ASME, ISO, and CE requirements for worldwide deployment.
• After-Sales Support: Maintenance plans, spare parts, and remote diagnostics ensure reliable performance.

Optimize Boiler Feedwater Treatment with Premix Technologies

Premix Technologies’ HP Dosing Systems with agitators deliver precision, safety, and compliance for boiler feedwater treatment in power plants. Our expertise in dosing and mixing technology ensures effective pH control, corrosion prevention, and scaling mitigation. Achieve operational efficiency and equipment longevity with our tailored solutions.

Contact us at sales@premixtechnologies.com or +91 89056 16775 to discuss your HP dosing needs and request a customized proposal. Visit www.premixtechnologies.com for more information.