Ammonia Dosing System

Purpose: The primary objective of an ammonia dosing system is to provide a controlled and regulated means of introducing ammonia into a process, ensuring that it aligns with the specific requirements of the water treatment application. This precision helps achieve effective treatment outcomes while maintaining compliance with regulatory standards.

Overview: The dosing system typically consists of one or more chemical storage tanks, pumps to deliver the chemicals to the injection point, and a control system to regulate the amount of chemical injected. The control system may be based on a feedback loop that monitors process parameters such as pH, conductivity, or turbidity, or it may be based on a set time schedule.s

 

Advanced FEA Analysis & Engineering Calculations for Skid-Mounted Chemical Injection Packages

At Verito Engineering Private Limited, we specialize in providing comprehensive engineering analysis and calculations for Skid-Mounted Chemical Injection Packages, ensuring superior performance, reliability, and compliance with global industry standards.

Our expertise covers Finite Element Analysis (FEA), Computational Fluid Dynamics (CFD), Structural, Mechanical, Hydraulic, and Thermal Calculations for all critical skid components, including:

Key Engineering Capabilities

Pressure Vessel Calculations API 675-Compliant Dosing Pump Selection & Sizing Agitator & Mixing Calculations (For Chemical Preparation Skids)
  • Pressure Vessel Design & Shell Thickness Calculation as per ASME Sec. VIII Div. 1 & 2.
  • Vessel Internal Component Load Analysis (Baffles, nozzles, internals, etc.).
  • Stress Analysis for Pressure Retaining Components to ensure longevity.
  • Nozzle Reinforcement & Load Analysis to prevent failures under operational loads.
  • Flow Rate & Pressure Drop Calculation for precise chemical metering.
  • Pump Stroke Length, Plunger/Diaphragm Sizing & NPSH Calculation to prevent cavitation.
  • Pulsation Dampener Sizing for flow stability & reduced pressure fluctuations.
  • CFD Analysis for Flow Optimization in complex piping networks.
  • CFD Analysis for Flow & Performance Optimization.
  • Impeller Selection & Torque Calculation for effective chemical mixing.
  • Structural & Fatigue Analysis of Agitator Shaft & Blades for extended service life.
  • Vortex Prevention & Baffle Sizing for improved mixing efficiency.
Automation & Instrumentation for Optimized Operations Piping Stress & Pressure Calculations Structural & Skid Frame Analysis
  • PLC, HMI, SCADA-Based Automation for precise control & reduced human intervention.
  • Smart Flow Meters, Pressure Transmitters & Level Sensors for real-time monitoring.
  • Automatic Dosing Adjustment & Data Logging to optimize chemical consumption & efficiency.
  • Pipe Wall Thickness Calculation as per ASME B31.3.
  • Flange Sizing/rating, Leakage & Weld Joint Strength Assessment for high-pressure applications.
  • Surge & Transient Flow Analysis to prevent pressure spikes.
  • FEA-based validation for skid stability, seismic loads, and lifting conditions.
  • Baseplate & Pump Mounting Deflection Study to prevent misalignment.
Strainer Calculations Safety & PSV Sizing Calculations Injection Quill
  • Strainer Mesh Sizing & Pressure Drop Calculations for filtration efficiency.
  • Pressure Safety Valve (PSV) Sizing per API 520/521.
  • Overpressure & Surge Analysis for emergency scenarios.
  • Injection Velocity & Jet Penetration Analysis for precise chemical dispersion.
  • Wake Frequency Calculation to prevent vibration-induced failures.
Material Selection & Corrosion Analysis Operational Efficiency & Cost Reduction
  • Material Compatibility Assessment (SS316, Duplex, Super Duplex, Alloy 20, Hastelloy).
  • NACE MR0175/ISO 15156 Compliance for sour service applications.
  • Optimized Equipment Layout for Compact Skid Design - reduces footprint & installation cost.
  • Automated Operation to Reduce Manpower Requirements.
  • Remote Monitoring & Troubleshooting for reduced downtime & maintenance costs.

 

Storage Tank: This tank stores the ammonia solution, and its capacity depends on the specific needs of the application. The concentration of the ammonia solution may vary based on the intended use.

Dosing Pump A dosing pump is responsible for accurately injecting or dosing the required amount of ammonia into the water or process stream. This pump ensures a controlled and consistent dosage, contributing to the precision of the ammonia introduction.

Control System: The control system manages the dosing rate based on various parameters such as water quality, pH levels, or other specific requirements. This helps maintain the desired conditions in the water treatment process by adjusting the ammonia dosage as needed.

Ammonia dosing systems are commonly employed in water treatment processes for several purposes:

pH Adjustment: Ammonia is used to increase the pH in water treatment processes where alkalinity is required.

Dechlorination: Ammonia can neutralize chlorine, forming chloramines, which are less harmful and longer-lasting disinfectants.

Nutrient Addition: Ammonia serves as a nutrient in biological treatment processes, supporting the growth of beneficial microorganisms.

Selective Precipitation: Ammonia can be used to selectively precipitate specific ions or metals from water, aiding in their removal.

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