Is gas compressor cleaning safe during operations?

We are huge advocates of . The idea of ‘little and often’ cleaning is ideal for keeping your compressor running productively, with more in-depth cleans reserved for occasional off-line sessions.

The process of cleaning during operations requires water/cleaning solution to be injected into the gas turbine compressor while it’s running. Introducing anything other than gas to the system may seem strange, and you wouldn’t be the first person to wonder if that’s detrimental to production or even if it’s safe. So, today’s article explores those two valid and important questions and explains why is a great way to look after your equipment.

Why do gas turbine compressors need cleaning?

During normal operation, accumulate on the internal surfaces of gas turbine compressors. Contaminants in the air, dust, hydrocarbons, salts, lubricants and other microscopic deposits adhere to surfaces under high heat and pressure, corroding, eroding and interrupting airflow. Left unchecked, these foulants inhibit production and eventually lead to .

Washing away foulants maintains production, boosts efficiency and extends the lifespan of your equipment.

What is on-line gas turbine compressor cleaning?

Conveniently, gas turbine compressors can be cleaned during normal operation. On-line cleaning is facilitated by specialised nozzles which spray water/cleaning solution directly into the compressor. Foulants are washed away during normal operation.

On-line cleaning is ideal for frequent use, complemented by occasional off-line cleans or manual washing which allows for the removal of stubborn residue.

Is on-line cleaning safe?

The short answer is yes. On-line cleaning is safe assuming proper precautions are taken and procedures followed.

Use specialised equipment

Choose that atomise cleaning solution and deliver a calculated spray pattern to avoid thermal shock while achieving the best possible results. We invest in computer modelling technology to simulate placement and spray patterns to ensure optimum results at each site. Our cleaning nozzles utilise proven and patented technology and are individually tested before leaving our dedicated workshop.

Use demineralised water

Using demineralised water prevents the avoidable introduction of further foulants.

Select appropriate chemicals

Specialist cleaning chemicals such as are designed to cleanse the delicate inner surfaces of gas turbine compressors.

Monitor operating conditions

At all times, including during a cleaning cycle, readings such as temperature, pressure, and vibration levels should all be closely monitored to ensure they’re within normal limits.

Does cleaning during use impact production?

You would think that introducing a liquid to your gas turbine compressor when it’s at load would negatively impact production and a very small, temporary dip in output may be noted during cleaning. However, the impact of this very brief dip is minute in comparison to the cumulative gains of regular on-line washing.

Keeping the compressor clean and efficient results in regained power and fuel savings. As an example, a Rochem customer reported savings of USD 15M over two years thanks to a combination of . You can .

Get in touch

At Rochem, we have unrivalled industry experience and knowledge in the specific field of gas turbine compressor cleaning. Our on-line , , chemicals and other are chosen at sites around the world, helping customers get the most from their gas turbines. Cleaning using our OEM-recommended technology is safe and effective.

We always endorse that a combination of regular on-line gas turbine compressor washing and occasional off-line cleans are the best way to maintain your equipment and maximise profit. If you’d like to discuss the options at your specific site or have any questions, please get in touch, today.