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
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
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

Poor Power Factor Boosted – Industrial Electrical Problems
Failed Letdown Valve Shuts down a Urea Plant Several Hours
Cooling Tower Fans Frequently Failing
Thermocouple Extension Lead Problem
RCA – Compressor Did Not Trip on Suction Pressure Low Low
Incident Investigation: Motor Operated Valve Lesson
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
208kSubscribersSubscribe
38kFollowersFollow

Categories

Explore More

Stuck Segment Orifice Dimensions Calculations
Flange Joint Errors shutdowns root cause analyzed and eliminated
Wrong Operation Internals Destroyed Demineralization Mixed Bed Vessel
Phosphate Dozing System Problems
Gas Cooler Re-tubing Done Successfully (Root Cause Analysis)
Welding Machine Fail in Dusty and Corrosive Areas
Compressor Anti-Surge Control near-miss incident
NH3 Plant Turbo-compressor Sudden Rise in Temperature

Keep Learning

Valve Actuator Passing

Lessons Learned from Actuator Passing Incidents

Plunger Pump Drive

Too Low Efficiency Torque Converter Elimination Attempt

Control Valve Passing Problem after Overhauling Job

Control Valve Passing Problem after Overhauling Job

Control Panel Instruments

Control Panel Instruments Problem Threatened Plant Shutdown

A Large Gate Valve Failed Motorized Operation

A Large Gate Valve’s Failed Motorized Operation

Thermocouple Extension Lead Minimizer Circuit

Thermocouple Wires and Extension Lead Issues

Compressor Cracked Shaft Spacers

Compressor Cracked Shaft Spacers

NH3 Storage Tanks Ammonia Gas

NH3 Storage Tanks Ammonia Gas Venting Issue – Root Cause Analysis

Learn More

Difference Between RS232 and RS485

Difference Between RS232 and RS485

Time Interval Measurement Objective Questions

Time Interval Measurement Objective Questions

Garage Door Roller Shutter

Shutter Door Control using Motor and Limit Switches

Plant Engineering Drawings

Piping and Instrumentation Drawing (P&ID) Tutorials – Part 1

Digital Electronics MCQ

Quine McCluskey Logic Functions Objective Questions

car parking example logic

Up Down Counter Instruction in PLC

Pressure transmitter Calibration Setup

Instruments Calibration Procedures

Identify Process Variables in P&ID

Identify Process Variables in P&ID

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?