LP & HP Boiler Dosing System

Comprehensive chemical treatment systems designed to prevent scaling, corrosion, and fouling in low-pressure and high-pressure boiler feedwater.

ISO 9001:2015 certified
Global Export Standards
LP & HP Boiler Dosing Systemlp
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System Advantages

Skid-Mounted Compact Design
High-Pressure Metering Pumps
PLC-Based Fully Automatic Control
Flow-Proportional Dosing Logic
Corrosion-Resistant Injection Quills
HMI Touchscreen Interface

1. Essential System Components

  • Chemical Storage Tanks:Dedicated containment for oxygen scavengers, pH adjusters, and inhibitors.

  • Precision Metering Pumps:High-accuracy pumps to control the exact flow of treatment chemicals.

  • Advanced Control Panel:Automates dosing rates based on real-time water quality data.

  • Analytical Sensors:Monitoring pH, Conductivity, and ORP to optimize chemical consumption.

  • Injection Quills:Specialized hardware for safe chemical dispersion into high-pressure feedwater lines.

2. Strategic Chemical Treatments

  • Oxygen Scavengers:Essential for removing dissolved oxygen to prevent pitting and corrosion.

  • Alkalinity Agents:Raising pH levels to neutralize acidic corrosion within the boiler shell.

  • Scale Inhibitors:Preventing mineral buildup on tubes that impairs heat transfer and causes overheating.

  • Phosphate Treatment:Specifically for HP boilers to precipitate hardness as manageable sludge.

  • Amine Compounds:Protecting condensate return lines from corrosion by controlling pH levels.

3. Operational Workflow

  • Continuous Quality Monitoring:Sensors provide a live stream of feedwater chemistry data.

  • Flow-Proportional Dosing:Adjusting chemical injection rates based on fluctuating boiler loads.

  • Multi-Stage Injection:Tailored dosing for both LP (Low Pressure) and HP (High Pressure) sections.

  • Automated Feedback Loop:Real-time system adjustments based on post-dosing water quality analysis.

4. LP vs. HP Boiler Requirements

  • Low-Pressure (LP) Systems:Focused on basic oxygen scavenging and pH control for moderate climates.

  • High-Pressure (HP) Systems:Complex regimens involving precise phosphate and inhibitor control to prevent carryover.

  • Safety & Reliability:Automated systems minimize hazardous manual chemical handling and human error.

5. Industrial Applications

  • Power Generation:High-pressure boilers requiring extreme precision for turbine protection.

  • Chemical Processing:Managing diverse steam loads with tailored chemical regimens.

  • Food & Pharma:Ensuring high steam purity to avoid product contamination.

  • District Heating:Preventing scale and efficiency loss in massive HVAC networks.

Technical Matrix

Pump TypeHydraulic or Mechanical Diaphragm
Pressure RatingUp to 200 Bar (for HP Boilers)
Tank MOCHDPE / SS316L / Fiberglass
AutomationPLC with SCADA Connectivity
SensorspH, Conductivity, DO, ORP
ComplianceASME & Boiler Safety Standards

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