Fight Coke Deposit in Your Thermal Oil Heater System: A Simple Guide

Is your thermal oil heater https://8ruiyan.com/en/all-organic-heat-carrier-boilers/ losing efficiency? Are you seeing higher energy bills? Coke deposit might be the problem.Coke is a hard, carbonaceous substance. It forms when thermal oil degrades from overheating or oxidation. This sludge reduces heat transfer, increases energy use, and can even cause equipment failure.

Cleaning your system is crucial. Here is a simple guide.

Part 1: Prevent coke is Key

Stop coke before it forms.

• Use High-Quality Oil: Invest in a stable, high-grade thermal fluid.
• Avoid Overheating: Never exceed the oil’s maximum film temperature.
• Maintain a Closed System: Keep the expansion tank sealed. Use a nitrogen blanket to prevent oxidation.
• Test Your Oil Regularly: Check key parameters like viscosity, TAN, and carbon content.

Part 2: How to Clean Coke in the System

If coke is already there, you must remove it. You have two main options.

Option A: Online Cleaning (For Light Deposits)

This method cleans the system while it is operational.

• What it is: You add a chemical cleaning agent to the existing oil.
• How it works: The detergent circulates with the oil. It softens and disperses light sludge and deposits.
• Process:
  1. Add the cleaning chemical to the expansion tank.
  2. Let the system run at normal temperature for several days.
  3. The chemical breaks down the deposits.
  4. Finally, drain the entire old oil and flush the system.
  5. Refill with fresh, clean thermal oil.
• Best for: Mild fouling and maintenance cleaning.

Option B: Offline Cleaning (For Heavy Coke Deposit)

This is a thorough, shutdown cleaning. It is the most effective method for severe cases.

Warning: This is a job for professionals.

The steps are more complex:

1. Drain Old Oil: Completely drain the degraded thermal oil from the system.
2. Circulate Cleaning Fluid: A temporary pump is connected. A special chemical cleaning solution is heated and circulated for many hours. This solution dissolves the hard coke deposits.
3. Neutralize and Rinse: The acidic cleaning solution is drained. The system is flushed with water and a neutralizing agent.
4. Remove All Water: This is a critical step. Use compressed air to blow out all water. Any remaining water will cause serious problems with the new oil.
5. Refill with New Oil: Once the system is completely dry, fill it with new thermal oil.

Special Note: The Electric Heater Itself

The heater is a hotspot for coke formation. Heavy coke here can burn out the elements.

During offline cleaning, inspect the heater bundle. For severe scaling, mechanical cleaning or high-pressure water jetting may be needed.

Conclusion: Act Now

Do not ignore coke deposits. They waste energy and damage your equipment.

For light cases, consider an online flush. For heavy deposits, always choose a professional offline cleaning service.

A clean system runs efficiently, saves money, and lasts longer.

Disclaimer: Always consult with a professional before performing any chemical cleaning. Follow all safety procedures.

For further consultation, please contact our technical team for expert advice.

Whatsapp:86-19106101570

wechat:86-19106101570

email:fob@jsryan.com

http://www.8ruiyan.com