/ News & Press / Video / Reconditioning – Reducing lifecycle costs of gasketed plate heat exchangers
Reconditioning – Reducing lifecycle costs of gasketed plate heat exchangers
WEBVTT Kind: captions Language: en
00:00:00.310 [Music] 00:00:05.53000:00:05.540 you recondition a heat exchanger for one 00:00:08.41900:00:08.429 out of two reasons one it's lost 00:00:10.82000:00:10.830 performance and the other one is because 00:00:12.70900:00:12.719 the gaskets between the plates are 00:00:14.27000:00:14.280 approaching end-of-life my name is - 00:00:17.54000:00:17.550 Elaine and I'm head of service for 00:00:19.46000:00:19.470 gasket and plated exchangers that Alfa 00:00:21.29000:00:21.300 Laval our skilled professionals use 00:00:24.32000:00:24.330 state-of-the-art equipment 00:00:25.73000:00:25.740 state-of-the-art service procedures and 00:00:27.76900:00:27.779 the highest quality spare parts and 00:00:29.77900:00:29.789 that's important because that gives you 00:00:32.54000:00:32.550 performance as good as new 00:00:34.45900:00:34.469 it gives you reliability as good as new 00:00:36.95000:00:36.960 but it also gives you an opportunity to 00:00:39.31900:00:39.329 learn about emerging problems and also 00:00:41.66000:00:41.670 what to do about them the first thing we 00:00:44.06000:00:44.070 do when we receive the heat exchanges 00:00:45.83000:00:45.840 arrival inspection and here we're 00:00:48.11000:00:48.120 looking for any present or emerging 00:00:50.27000:00:50.280 problems with the heater changing we 00:00:54.35000:00:54.360 remove the gaskets by submerging the 00:00:56.11900:00:56.129 plates in the liquid nitrogen bath and 00:00:58.49000:00:58.500 this is a very gentle and efficient way 00:01:00.88900:01:00.899 of removing all the gaskets and the glue 00:01:03.29000:01:03.300 residues and you want to do that because 00:01:05.35900:01:05.369 if you don't get all of that away you 00:01:07.60900:01:07.619 might face problems sealing the unit 00:01:09.83000:01:09.840 later on we clean the plates by 00:01:13.49000:01:13.500 submerging them in a caustic and an acid 00:01:15.49900:01:15.509 bath it's important to get the right 00:01:17.80000:01:17.810 chemicals concentration temperature and 00:01:21.56000:01:21.570 duration in order to have an efficient 00:01:23.74900:01:23.759 cleaning process if you get that right 00:01:25.88000:01:25.890 you get plates in as good as new 00:01:27.46900:01:27.479 condition and if you don't get it right 00:01:29.63000:01:29.640 you risk damaging the plates 00:01:32.85000:01:32.860 we do post cleaning inspection in order 00:01:35.47000:01:35.480 to identify signs of cracks corrosion 00:01:37.78000:01:37.790 and deformation and that's important 00:01:40.66000:01:40.670 because that helps you to improve the 00:01:42.25000:01:42.260 reliability of the equipment when it's 00:01:43.78000:01:43.790 back in operation we do a 00:01:47.23000:01:47.240 non-destructive track test in order to 00:01:49.09000:01:49.100 identify cracks not even visible to the 00:01:51.46000:01:51.470 eye and that's important because you 00:01:54.55000:01:54.560 want to identify those so you don't have 00:01:56.95000:01:56.960 any failures when you put the unit back 00:01:58.72000:01:58.730 in operation we use the two component 00:02:04.84000:02:04.850 the cured glue to give a very strong 00:02:07.57000:02:07.580 bond between the gasket and the plate 00:02:09.31000:02:09.320 that gives you the advantage when you do 00:02:11.74000:02:11.750 service in between reconditioning that 00:02:14.19900:02:14.209 the gaskets don't fall out and your 00:02:16.18000:02:16.190 cleaning processes will be more 00:02:17.65000:02:17.660 efficient to ensure the right shape of 00:02:21.19000:02:21.200 the gasket the right hardness the right 00:02:23.98000:02:23.990 compound and the right dimensional 00:02:25.93000:02:25.940 tolerances we only use genuine Alfa 00:02:28.06000:02:28.070 Laval gaskets and that helps you to 00:02:30.61000:02:30.620 avoid premature leakage or even worse 00:02:33.30000:02:33.310 damaging the plates we prefer to receive 00:02:37.69000:02:37.700 the entire unit when you service 00:02:39.37000:02:39.380 equipment with us by doing so we can 00:02:41.86000:02:41.870 expect the pressure retaining parts and 00:02:43.93000:02:43.940 advice on replacement needs we can 00:02:46.00000:02:46.010 restore the corrosion protection we can 00:02:48.79000:02:48.800 also make sure that all the plates are 00:02:50.50000:02:50.510 installed in the right order to get you 00:02:52.33000:02:52.340 the right performance when the unit is 00:02:53.94900:02:53.959 backed by servicing the frame with us 00:02:56.83000:02:56.840 you also ensure to get the unit tighten 00:02:59.35000:02:59.360 to the right specification not 00:03:01.39000:03:01.400 overtighten not under tightened but to 00:03:03.94000:03:03.950 the right specification and that avoids 00:03:06.43000:03:06.440 damaging the plates 00:03:09.96000:03:09.970 at the end we also do a hydrostatic test 00:03:12.97000:03:12.980 and that is to detect any internal or 00:03:15.64000:03:15.650 external leakages after assembly in our 00:03:21.10000:03:21.110 service reports you'll be able to see 00:03:22.42000:03:22.430 exactly what we've done to the unit the 00:03:24.39900:03:24.409 problems we've identified and also 00:03:26.64900:03:26.659 advice on future maintenance needs 00:03:29.23000:03:29.24000:03:32.00000:03:32.010 when reconditioning your equipment it's 00:03:34.25000:03:34.260 really important to work with the 00:03:35.60000:03:35.610 partner has very good product knowledge 00:03:37.19000:03:37.200 they use the state-of-the-art technology 00:03:39.41000:03:39.420 service procedures and the right spare 00:03:41.75000:03:41.760 parts for your equipment not getting all 00:03:46.39900:03:46.409 of this right means the risk of more 00:03:48.25900:03:48.269 than doubling the cost of maintenance 00:03:50.03000:03:50.040 during the lifecycle of the product and 00:03:51.83000:03:51.840 that without even considering the costs 00:03:54.11000:03:54.120 of downtime or lost production it's a 00:03:57.35000:03:57.360 great piece of equipment let's make sure 00:03:59.56900:03:59.579 it stays that way 00:04:02.49000:04:02.50000:04:06.54000:04:06.550 you
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