How to Maintain Plate Heat Exchangers
Like any other device, a heat exchanger also requires regular maintenance to provide optimal performance. The good thing about plate heat exchangers is that it is easy to maintain them in comparison to other heat exchangers and in addition to it, it is relatively easy to diagnose problems that occur, which means there is lesser need to look for replacement plates.
In the following sections, we will examine things you need to do to maintain your plate heat exchanger in proper condition.
Maintenance of Plate Heat Exchangers
In case, there is no regular maintenance of a plate heat exchanger then the efficiency of such exchanger starts declining.
This happens due to what is known as plate fouling wherein matter starts building up in plate's grooves, resulting in a reduction in heat transfer capacity of plates and eventually you may have to look for replacement plates.
Moreover, with an increase in scaling over the plate, the rate at which fouling occurs expedites and as such, it becomes necessary to perform maintenance work regularly so that large expenditure on maintenance and extended downtime can be avoided.
Let us now examine things you must do to maintain your plate heat exchanger in the right condition and avoid the need to get replacement plates.
You need to keep a record of the date when last maintenance work was performed. In addition to it, you should regularly check the plate pack for tightness as well as lubricate the guide as well as carrying bars so that it becomes easier to open the heat exchanger.
By maintaining a record of all the details you will be able to properly schedule maintenance work on regular basis and keep your heat exchanger in good condition.
Perform Regular Inspection
By performing visual inspection you will be able to tell whether plate pack is in the tightened state as per given specification and the gaskets are undamaged. In addition to it, you should also examine the pressure gauges present at both ends of your plate heat exchanger to ensure that pressure drop will be within desired limits.
If during the inspection it is found that there is excessive pressure drop then it will indicate that there is a fouling issue that is to be addressed on urgent basis.
Moreover, the pressure drop could also be due to other reasons and as such, you should also check to ensure that all the pipes are in good condition and pumps are functioning properly.
Carry Out Cleaning
Cleaning on regular basis can be helpful in avoiding issues which can become major problems over time. The main aim of these cleaning procedures should be to flush out debris from your plate heat exchanger as well as to clean the plate pack, which in turn will help to prolong the lifespan of your exchange and reduce the need to purchase replacement plates.
The Bottom Line
To conclude we will say that it is important to maintain heat exchangers in good condition so that they continue to perform in optimal condition. By having a clearly defined maintenance schedule in place, it is less likely that you will have to look for replacement plates and other parts at regular interval.