Heat Exchangers

When taking samples from hot processes, thought has to be given to the sampling method and the safe handling of the sample by the operator.
Sample bottles should be less than 60 degrees C to be safely handled. 
Often processes can be at far higher temperatures than this.
To safely take a sample at elevated temperatures CRP use heat exchangers to cool the sample. The heat exchanger is designed to reduce the process temperature of the sample down to a safe level for handling. We have two types of heat exchanger design available.
 

Coil Heat Exchanger
This heat exchanger utilises a small bore tube through which the sample flows into the chosen sample dispensing method. This tube is coiled and positioned within a cylinderical water jacket, the cylinder has a water inlet and outlet which should be connected on site to a cold running water source. As the cold running water passes over the coil the heat is drawn from the sample. The cooling water supply need only be flowing when a sample is going to be taken, typically only around 10 seconds. The standard unit can reduce the sample temperature by 100 degrees C depending on sample flow rates. For higher temperature drops larger heat exchangers can be supplied. 
 
 
Volumetric Heat Exchanger
This heat exchanger utilises a fixed volume sample holding cylinder. The sample is dispensed from the sample valve into the cylinder. The cylinder has an outer cooling jacket which has water inlet and outlets to connect to a running cold water source. The sample is then released from the cooling cylinder into the sample bottle using a ball valve.
The heat exchanger can be manufactured from Hastelloy components for corrosive processes. The design also lends itself to remote processes where it is not possible to use cooling water. The sample can still be taken from the process pipeline in the normal way and held in the volumetric cooler. The sample can be left within the cooling chamber to cool naturally.This is often achieved very quickly due to the large metal content of the heat exchanger quickly drawing the high temperature away from the contained sample.
 
 

For further information please call our sales office on 01706 756 400

 

Contact Details

Corrosion Resistant Products Ltd
Todmorden Road
Littleborough
OL15 9EG

Phone: +44(0)1706 756400
Fax: +44(0)1706 379567
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