00:00:01.300 [Music] 00:00:14.20000:00:14.210 hi this is Walter from n con evaporators 00:00:17.45000:00:17.460 and what you're looking at is a 2000 00:00:21.52900:00:21.539 gallon per hour MVC evaporator this 00:00:26.26900:00:26.279 units heat source is steam but Electric 00:00:29.30000:00:29.310 is also available now this unit is in 00:00:33.59000:00:33.600 the final stages of quality control 00:00:35.51000:00:35.520 testing so it's not a hundred percent 00:00:37.40000:00:37.410 assembled for example the railings are 00:00:41.99000:00:42.000 not attached to the walkways above what 00:00:45.35000:00:45.360 I'd like to do is show you how this NBC 00:00:47.29900:00:47.309 evaporator works and it'll do a quick 00:00:49.67000:00:49.680 walk around and take a look at some of 00:00:51.08000:00:51.090 the components but first I'd like to 00:00:57.04900:00:57.059 discuss a little bit of a theory on how 00:00:58.84900:00:58.859 this unit works we have here is a little 00:01:04.10000:01:04.110 flow diagram and it's hard to read on 00:01:06.50000:01:06.510 the screen but what you have here is 00:01:09.50000:01:09.510 your feed liquid comes in through a feed 00:01:11.66000:01:11.670 pump and goes into a feed stock heat 00:01:13.91000:01:13.920 exchanger then it flows upward into the 00:01:18.38000:01:18.390 separation tank once this separation 00:01:21.20000:01:21.210 tank fills the recirculation pump will 00:01:24.14000:01:24.150 turn on and the liquid will flow round 00:01:26.83000:01:26.840 through a main heat exchanger now when 00:01:30.26000:01:30.270 the unit is first turned on steam will 00:01:33.77000:01:33.780 be flowing through the other side of 00:01:34.91000:01:34.920 this heat exchanger heating our feed 00:01:37.39900:01:37.409 liquid if this is electric unit an 00:01:40.70000:01:40.710 electric heater would be located to heat 00:01:43.01000:01:43.020 the liquid as it comes in and the liquid 00:01:45.56000:01:45.570 goes back into separation tank 00:01:47.12000:01:47.130 continually circulates as its heats up 00:01:50.45000:01:50.460 the boiling steam will rise and go into 00:01:54.46900:01:54.479 a vapor compressor this vapor compressor 00:01:58.89900:01:58.909 collapses the steam making it hotter 00:02:03.42000:02:03.430 that's sort of like a pressure cooker in 00:02:05.71000:02:05.720 that way except we're doing it 00:02:06.94000:02:06.950 mechanically this superheated steam will 00:02:10.48000:02:10.490 now flow down and go into our main heat 00:02:13.39000:02:13.400 exchanger now as the pressure rises from 00:02:16.60000:02:16.610 our vapor compressor and our superheated 00:02:18.94000:02:18.950 liquid of steam the steam incoming steam 00:02:22.42000:02:22.430 will shut off and the system will be 00:02:24.85000:02:24.860 heated just by the superheated steam as 00:02:28.42000:02:28.430 the pressure drops if it gets cooler the 00:02:31.69000:02:31.700 steam will turn back on to heat it back 00:02:33.10000:02:33.110 up again 00:02:34.62000:02:34.630 now the superheated steam goes through 00:02:37.12000:02:37.130 the main heat exchanger give me an 00:02:38.83000:02:38.840 Appetit for the feed liquid and by the 00:02:41.77000:02:41.780 time it comes out the other side it will 00:02:44.83000:02:44.840 be very hot distilled water this 00:02:47.83000:02:47.840 distilled water will flow down in the 00:02:49.78000:02:49.790 distal in tank and then flow down into 00:02:52.96000:02:52.970 the feedstock heat exchanger which heats 00:02:55.75000:02:55.760 the incoming liquid and then your cooled 00:02:59.05000:02:59.060 down distillate will be pumped up now 00:03:03.81000:03:03.820 let's take a look at the same thing but 00:03:06.78900:03:06.799 on the actual unit 00:03:19.41000:03:19.420 now one of the nice things about this 00:03:21.15000:03:21.160 unit there's a good amount of space to 00:03:24.21000:03:24.220 move around so you can come inside and 00:03:28.26000:03:28.270 do maintenance or repairs very easily 00:03:30.59000:03:30.600 and reach everything you see the pipes 00:03:37.47000:03:37.480 down at the very end that's where the 00:03:39.60000:03:39.610 feed liquid will come in it will flow 00:03:43.08000:03:43.090 along with the feed pump and it's hard 00:03:53.52000:03:53.530 to see on the video but it flows up 00:03:55.97000:03:55.980 around down into the feed stock heat 00:04:06.81000:04:06.820 exchanger 00:04:13.11000:04:13.120 get a good view of it here 00:04:24.35000:04:24.360 now this feedstock heat exchanger it's 00:04:28.86000:04:28.870 made up of many plates inside what 00:04:32.42900:04:32.439 happens is the liquid the feed liquid 00:04:37.61900:04:37.629 flows in it goes through a torture just 00:04:40.61900:04:40.629 pass through all these different plates 00:04:44.60000:04:44.610 and as the unit is running the heated 00:04:47.76000:04:47.770 distil go through here and heat up this 00:04:49.46900:04:49.479 feed liquid after it flows through that 00:05:03.08900:05:03.099 liquid will flow out go up and over 00:05:17.05000:05:17.060 and see that pipes it goes up and into 00:05:21.40900:05:21.419 that big pipe way up there on the top 00:05:25.60000:05:25.610 alright so let's get out of here and 00:05:27.95000:05:27.960 I'll show you on the outside where it 00:05:29.30000:05:29.310 goes from there 00:05:41.14000:05:41.150 well that feed liquid goes into this big 00:05:44.98000:05:44.990 pipe here which flows run into that big 00:05:49.78000:05:49.790 separation tank now as that tank fills 00:05:53.65000:05:53.660 up 00:05:59.29000:05:59.300 it's recirculation pump turns on and the 00:06:04.81000:06:04.820 feed liquid flows out through here 00:06:10.23000:06:10.240 through the pump 00:06:15.30000:06:15.310 and into the main heat exchanger now 00:06:19.17000:06:19.180 this main heat exchanger it's the same 00:06:23.31000:06:23.320 thing as our feedstock one just with an 00:06:26.76000:06:26.770 awful lot more plates now as I said 00:06:29.58000:06:29.590 before when this units first running 00:06:31.25000:06:31.260 steam will be going the other way in 00:06:33.30000:06:33.310 these heat exchanger giving up a teat in 00:06:35.58000:06:35.590 heating this liquid once the unit is 00:06:38.15900:06:38.169 running and going the superheated steam 00:06:41.07000:06:41.080 from the vapor compressor will be 00:06:44.52000:06:44.530 heating this so this liquid flows 00:06:48.33000:06:48.340 through there and then flows back out 00:06:52.82000:06:52.830 and back into the separation vessel as 00:06:59.31000:06:59.320 this keeps circulating it continues to 00:07:01.29000:07:01.300 heat up until it reaches boiling 00:07:14.78000:07:14.790 once it reaches boiling the steam rises 00:07:20.98000:07:20.990 goes on through that pipe on the top 00:07:24.55000:07:24.560 flows down along here and flows toward 00:07:31.13000:07:31.140 our favorite compressor 00:07:43.48000:07:43.490 there was a vapor compressor if you 00:07:47.80000:07:47.810 notice there are two on this unit the 00:07:50.95000:07:50.960 type of vapor compressor and the number 00:07:54.27900:07:54.289 of them will depend on the 00:07:55.83000:07:55.840 characteristics of the feedwater itself 00:08:01.40900:08:01.419 now this compresses our steam makes it 00:08:05.80000:08:05.810 superheated and super compressed that 00:08:10.71900:08:10.729 steam goes through this pipe 00:08:27.62900:08:27.639 and into the main heat exchanger it will 00:08:32.43000:08:32.440 now give up heat to the feed water 00:08:38.75900:08:38.769 that's circulating in our separation 00:08:40.62000:08:40.630 tank and once it gets through here it 00:08:46.01900:08:46.029 will be super hot 00:08:47.22000:08:47.230 distilled water that will flow and then 00:08:51.99000:08:52.000 this distillate tank will come out 00:09:00.86000:09:00.870 flow along here and to our feedstock 00:09:04.91000:09:04.920 heat exchanger where we'll be heating 00:09:08.03000:09:08.040 our feed liquid I'll give up more heat 00:09:11.93000:09:11.940 when it comes out it'll be pretty hot 00:09:14.66000:09:14.670 but cooled down quite a bit 00:09:17.15000:09:17.160 that distilled water will flow out 00:09:21.46000:09:21.470 around you know the unit and into your 00:09:27.07000:09:27.080 distillate tank that's a basic overview 00:09:32.11000:09:32.120 of how this unit works let's just take 00:09:36.29000:09:36.300 an overview look at it and see the two 00:09:42.74000:09:42.750 thousand gallon for our unit is quite 00:09:44.30000:09:44.310 big 00:09:56.69000:09:56.700 you see here these are some of the 00:09:58.76000:09:58.770 platforms that I was talking about these 00:10:03.68000:10:03.690 will have railings and ladders to them 00:10:05.80000:10:05.810 when it's actually installed at the 00:10:07.85000:10:07.860 customer site if you've noticed we build 00:10:14.03000:10:14.040 these units in a modular fashion so we 00:10:17.93000:10:17.940 can build it here test them here and 00:10:19.64000:10:19.650 then disassemble them into components 00:10:21.85000:10:21.860 and ship them to the customers location 00:10:24.32000:10:24.330 and put it together it makes it a lot 00:10:25.79000:10:25.800 easier on the customer site to assemble 00:10:27.50000:10:27.510 now you probably noticed that these 00:10:32.18000:10:32.190 three large pipes are quite far away 00:10:37.10000:10:37.110 from the actual MPC unit and the 00:10:39.56000:10:39.570 separation vessel and you probably also 00:10:42.20000:10:42.210 see that we seem to be supporting with 00:10:43.70000:10:43.710 wood here the reason for that is at the 00:10:46.40000:10:46.410 customer site the vessel will be outside 00:10:52.57000:10:52.580 and the NVC unit itself will be inside 00:10:57.59000:10:57.600 and obviously those pipes will be going 00:10:59.45000:10:59.460 through the wall 00:11:06.05000:11:06.060 as you noticed our pipes are very 00:11:08.78000:11:08.790 organized 00:11:16.39000:11:16.400 this right here is the feed system for 00:11:23.74000:11:23.750 anti foam and anti scale and though some 00:11:26.77000:11:26.780 applications may require that someone 00:11:37.31000:11:37.320 this right here is the control panel 00:11:42.96000:11:42.970 using this particular unit we're using 00:11:45.09000:11:45.100 an Allen Bradley 1250 panel which is a 00:11:49.35000:11:49.360 touchscreen decent-size the touch screen 00:11:53.22000:11:53.230 is sort of nice just for the amount of 00:11:55.68000:11:55.690 data you can look at and log and also 00:11:59.55000:11:59.560 just for navigating through the menus 00:12:02.75000:12:02.760 even I can navigate to the menus which i 00:12:05.49000:12:05.500 think is a programming feat this is the 00:12:10.95000:12:10.960 internals of the aux panel right there 00:12:29.50000:12:29.510 there are the paper compressors once 00:12:31.45000:12:31.460 again 00:12:37.78000:12:37.790 one other thing I did want to show you 00:12:42.09000:12:42.100 is the VFD units for the vapour 00:12:44.71000:12:44.720 compressors 00:12:54.40000:12:54.410 all right I think that is about it I 00:12:56.77000:12:56.780 hope you enjoyed my little tour of our 00:12:59.92000:12:59.930 NBC 2000 operator if you're interested 00:13:04.03000:13:04.040 in learning more about this unit from 00:13:05.52000:13:05.530 someone who really knows what they're 00:13:07.39000:13:07.400 talking about give us a call here at six 00:13:10.24000:13:10.250 oh three six two four five one one zero 00:13:14.38000:13:14.390 and thank you for watching
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Engineering company LOTUS®
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