jw-cs.co.za

Fouling in heat exchangers is an enormous problem internationally. The cleaning by jnw® will remove this fouling on the outsides of the air-cooled heat exchangers in a way that is not possible with manual lances and/or fire hoses.

The cleaning service is applicable for:

• Air cooled condensers
• Flat air coolers
• V-shape air coolers
• Hybrid cooling tower bundles

Contrary to the well-known cleaning processes, the jnw® process of these surfaces operates with high pressure water. The existing systems only remove the fouling cosmetically. The left fouling is pressed into the heat exchanger and is not washed away. The fouling is compacted an does not only prevent the heat transfer but also obstruct the airflow.

Disadvantages of not using the jnw® cleaning system:

• Higher operating costs
• Reduced performance
• Possible break-downs

Make use of the extended jnw® service!
The service includes an customized installation, cleaning and de-installation of the system. The cleaning is performed during operation, even a partial outage in not required.

The cleaning is exclusively done with high pressure water, without any additive. This is possible due to optimal and fixed nozzle beam angle. The nozzle beam is moved in a linear motion and powered by an electrical motor. Patents on operation samples have been applied in respect of various systems.

jnw® equipment maintenance:
To ensure optimal operation of the cleaning systems installed by jnw®, we offer a maintenance service with a maintenance schedule, all required repairs and maintenance are executed after consultation with the client.

Optimal fan performance as it was in the beginning:
Based on the reported performance improvement, the leading suppliers of air cooled condensers world wide, install jnw® cleaning systems in their equipment as standard practice.

In 4 power stations in Mexico with a total capacity of 1220 MW as well as power stations in the US and the UK with a total capacity of 3000 MW, the j&w® cleaning system is presently installed.

jnw® cleaning systems are available with the following options:

• Half automatic
• Full automatic
• Equipment for ex-protected sites with ex-protected electrical or pneumatic controls

Further jnw® services
In addition to the cleaning service of air-cooled heat exchangers, offers the following services:

• Mechanical maintenance of fan drives
• Internal tube cleaning
• Infrasonic cleaning service

We also provide both internal and infrasonic cleaning systems.