Inst ToolsInst ToolsInst Tools
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
  • Request
Search
  • Books
  • Software
  • Projects
  • Process
  • Tools
  • Basics
  • Formula
  • Power Plant
  • Root Cause Analysis
  • Electrical Basics
  • Animation
  • Standards
  • 4-20 mA Course
  • Siemens PLC Course
Reading: Leaky Boiler Drum Level Switch Stops NH3 Plant Commissioning
Share
Notification Show More
Font ResizerAa
Inst ToolsInst Tools
Font ResizerAa
  • Courses
  • Design
  • PLC
  • Interview
  • Control System
Search
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
  • Request
Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Inst Tools > Blog > Root Cause Analysis (RCA) > Leaky Boiler Drum Level Switch Stops NH3 Plant Commissioning

Leaky Boiler Drum Level Switch Stops NH3 Plant Commissioning

Instrumentation engineering root cause analysis of Leaky Boiler Drum Level Switch Stops NH3 Plant Commissioning.

Last updated: September 28, 2022 2:51 pm
S Raghava Chari
Root Cause Analysis (RCA)
No Comments
Share
2 Min Read
SHARE

Instrumentation engineering root cause analysis of Leaky Boiler Drum Level Switch Stops NH3 Plant Commissioning.

Contents
Leaky Boiler Drum Level SwitchAuthor SolutionBenefits Realized
Article Type:Root Cause Analysis (RCA)
Category:Instrumentation
Equipment Type:Instruments
Author:S. Raghava Chari

Note: This root cause analysis (RCA) is from real-time scenarios that happened in industries during the tenure of two or three decades ago. These articles will help you to improve your troubleshooting skills and knowledge.

Leaky Boiler Drum Level Switch

Problem: 40-bars 250o C waste heat boiler Steam Drum Level Switch electrode packing leaks delayed an ammonia plant commissioning.

The workshop found it impossible to turn-out the flexible material-shaped packing.

The drawing has shown flexible material was unfamiliar and not available.

Leaky Boiler Drum Level Switch

Author Solution

The author got the packing done thus:

  1. Hold the electrode in the hole and wedge at the bottom with two diametrically opposite tiny wooden chips.
  2. Fill loose high temperature graphite packing around the electrode; tighten the packing nut 3 turns after filling.
  3. Insert the top ceramic sleeve to prevent electrode contacting the packing nut.
  4. Tighten the packing nut if leaks seen at full drum pressure and temperature.

Benefits Realized

The level switch electrode never leaked; thus, a very important boiler safety alarm function reliably ever.

Author: S. Raghava Chari

Do you face any similar issues? Share with us through the below comments section.

If you liked this article, then please subscribe to our YouTube Channel for Instrumentation, Electrical, PLC, and SCADA video tutorials.

You can also follow us on Facebook and Twitter to receive daily updates.

Read Next:

  • Pressure Switch Screwed Cover
  • Too Low-Temperature Readings
  • Pressure Switch Screwed Cover
  • Thermowell Shank to Flange Leaks
  • Magnetic Flow Meter Liner Damaged
Don't Miss Our Updates
Be the first to get exclusive content straight to your email.
We promise not to spam you. You can unsubscribe at any time.
Invalid email address
You've successfully subscribed !

Continue Reading

Ammonia Flash Vessel All Level Instruments Stopped Working
Passing Control Valves Cause Yearly Losses in Production Plant
Repeat Failures of Letdown Valves
18 Temperature Sensors Fault Leads to Plant Shutdown
Heat Exchanger Tubes Corroded Root Cause Analysis
Cement kilns, Rotary Drum Driers Simplest Electrical Drive
Share This Article
Facebook Whatsapp Whatsapp LinkedIn Copy Link
Share
Leave a Comment

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Stay Connected

128.3kFollowersLike
69.1kFollowersFollow
210kSubscribersSubscribe
38kFollowersFollow

Categories

Explore More

Solving Control Valve Hunting: Instrument Troubleshooting
Ammonia Feed Ball Valve to Ship Tank Closed
Solenoid Valve Failure in Plant Start-Up: Identifying the Root Cause
Junction Box Internal Corrosion Problems and Solutions
Antifriction bearings (AFB) Problems and Delays Plant Restarts
Failing Weigh Feeders and Mechanical Variable Speed Drives (VSD)
A Plant Bucket Elevators chains too short chain lives problem eliminated
11 KV Bus A to Bus B Phase Check Problem

Keep Learning

Demister Pads Problem

Problems with Demister Pads – Root Cause Analysis (RCA)

ISO 5167 Orifice Plate Types

Readers Questions on Flow Transmitter

Testing of Pneumatic Systems

Panel and Field Pneumatic Controller’ Bumpless Transfer Issues

Bolted to Vessel Flange Displacer Level Transmitter

Seal Level Differential Pressure Transmitter Problems

Amine Pump Trip - Root Cause Analysis

Amine Pump Trip – Root Cause Analysis

Plunger Pump

Within Few Weeks Failing Acid Dozing Pumps

repairs of welding cast refractory lined box over the hot spots

Primary Reformer RFG main Hot Spots threaten Indefinite Outage

Erratic Radar Level Gauges

Erratic Radar Level Gauges Delays a Refinery Commissioning

Learn More

Capacitor Bank

Poor Power Factor Boosted – Industrial Electrical Problems

Difference Between Ethernet IP and Profinet

Difference Between Ethernet IP and Profinet

Allen Bradley Powerflex VFD

Allen Bradley Powerflex VFD

Control Valve Positioner Working Principle

Control Valve Positioner Working Principle

Benefits of SIMOCODE over Intelligent MCC

Benefits of SIMOCODE over Intelligent MCC

Ladder Logic Questions and Answers

Ladder Logic MCQ Questions and Answers

Automation in Mining Industry

Industrial Automation in the Mining Industry

Pressure Gauge Accessories

Pressure Gauge Accessories

Menu

  • About
  • Privacy Policy
  • Copyright

Quick Links

  • Learn PLC
  • Helping Hand
  • Part Time Job

YouTube Subscribe

Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Welcome Back!

Sign in to your account

Username or Email Address
Password

Lost your password?