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Difference between Deaerator and a Condensate Tank - Boiling point
WEBVTT Kind: captions Language: en
00:00:00.179 well today on the boiling point we're 00:00:01.79000:00:01.800 going to talk about the difference 00:00:02.96000:00:02.970 between a condensate system and a 00:00:05.15000:00:05.160 deaerator 00:00:10.66000:00:10.670 which tradeshows season here at ware and 00:00:13.54900:00:13.559 we're going to be at the power gin our 00:00:15.65000:00:15.660 container comes out and I start looking 00:00:17.51000:00:17.520 at it and I thought you know what let's 00:00:19.13000:00:19.140 talk a little bit about the deaerator 00:00:20.87000:00:20.880 and also a condensate system and talk a 00:00:23.12000:00:23.130 little bit about what the difference is 00:00:25.00900:00:25.019 got my man Steve Taylor here our 00:00:27.05000:00:27.060 resident expert if you will Steven while 00:00:29.96000:00:29.970 we talk a little bit about the deaerator 00:00:31.37000:00:31.380 first and what is a generator for to 00:00:35.84000:00:35.850 preheat the water and remove the oxygen 00:00:38.27000:00:38.280 from the water get oxygen in in the 00:00:40.36900:00:40.379 water 00:00:40.70000:00:40.710 introduce that into the bore and you 00:00:42.56000:00:42.570 start oxygen pitting that destroys the 00:00:45.17000:00:45.180 tubes inside of water that's what it for 00:00:46.91000:00:46.920 okay actually it's a feed system if I'm 00:00:49.06900:00:49.079 correct so what is it actually doing 00:00:51.38000:00:51.390 from this where you're you're preheating 00:00:53.15000:00:53.160 the water and then these feed pumps are 00:00:55.13000:00:55.140 taking that water but you're running 00:00:56.18000:00:56.190 four or five six pounds of pressure on 00:00:58.34000:00:58.350 the deaerator if the boiler is running 00:01:00.38000:01:00.390 125 pounds you've got to get that 00:01:01.91000:01:01.920 pressure pumped up so the preheated 00:01:04.75900:01:04.769 water goes to the pumps to pump Jack 00:01:07.39900:01:07.409 that pressure up pump it into the boiler 00:01:08.89900:01:08.909 as a boiler in each water just to keep 00:01:10.31000:01:10.320 water in the water as the boiler steams 00:01:12.23000:01:12.240 it off more water comes in just a full 00:01:14.63000:01:14.640 cycle okay what type of temperature are 00:01:16.82000:01:16.830 we talking about in the year 220 to 230 00:01:19.52000:01:19.530 to 25 to 27 is ideal but it will range 00:01:23.12000:01:23.130 between 220 and 230 degrees and why is 00:01:25.76000:01:25.770 the why it's important to actually take 00:01:28.16000:01:28.170 oxygen out of the water again it'll 00:01:30.74000:01:30.750 attack the oxygen will attack those to 00:01:32.51000:01:32.520 start pitying start oxygen pitting the 00:01:34.64000:01:34.650 tubes or a tube sheet the Morison tube 00:01:36.46900:01:36.479 Michell and that will destroy the tubes 00:01:37.96900:01:37.979 and the border itself okay once you take 00:01:39.83000:01:39.840 us through the inside of the deaerator 00:01:41.33000:01:41.340 and how when the water comes in and then 00:01:44.17900:01:44.189 how this actually works well this is a 00:01:45.98000:01:45.990 has a modulating feed valve on it so 00:01:47.69000:01:47.700 that valve will will modulate up and 00:01:49.96900:01:49.979 down the mcdonald miller has a slide 00:01:52.16000:01:52.170 switch on it that slides which works 00:01:53.99000:01:54.000 like this got a float in there that 00:01:56.09000:01:56.100 makes that slide switch work that sends 00:01:58.13000:01:58.140 a variable signal for 220 signal to the 00:02:00.44000:02:00.450 mod motor and that modulates that valve 00:02:04.21900:02:04.229 up and down according where you want the 00:02:06.02000:02:06.030 water level in the gauge class typically 00:02:08.24000:02:08.250 it runs just about here about halfway is 00:02:10.16000:02:10.170 where that 00:02:10.91900:02:10.929 water level will normally run okay when 00:02:12.66000:02:12.670 the water is introduced it drops down 00:02:14.19000:02:14.200 through a spray head so that water comes 00:02:16.64900:02:16.659 in through this spray head and when it 00:02:18.83900:02:18.849 comes in it comes out in a flash it'll 00:02:21.30000:02:21.310 come out spraying out at the same time 00:02:23.39900:02:23.409 to get rid of that that oxygen that's in 00:02:25.44000:02:25.450 that water because all water has oxygen 00:02:27.24000:02:27.250 in it you don't want that in the blower 00:02:28.47000:02:28.480 get rid of it you bring steam from the 00:02:30.75000:02:30.760 water in here reduce it down to about 00:02:33.20900:02:33.219 five to seven psi that comes in through 00:02:36.62900:02:36.639 this system the steam comes up in here 00:02:39.17900:02:39.189 and it mixes with that water and that 00:02:41.05900:02:41.069 that steam will force those oxygen 00:02:44.75900:02:44.769 molecules into the very top of the of 00:02:47.58000:02:47.590 the container itself but the tank itself 00:02:50.25000:02:50.260 you have another opening here that we 00:02:53.12900:02:53.139 have plugged that the event will the 00:02:57.42000:02:57.430 oxygen will vent out of and you take 00:02:59.19000:02:59.200 that out of the container itself a lot 00:03:00.36000:03:00.370 of time you walk by a boiler room or 00:03:01.83000:03:01.840 outside the boiler room you'll see a 00:03:02.94000:03:02.950 small pipe with steam coming out of it 00:03:05.00900:03:05.019 that's actually oxygen being vented off 00:03:07.40900:03:07.419 of that feed system all the time it's 00:03:08.75900:03:08.769 not wasted energy 00:03:09.65900:03:09.669 it's just oxygen being vented off that 00:03:11.58000:03:11.590 the aerator system okay and as we know 00:03:13.58900:03:13.599 from actually one of our steam cultures 00:03:15.24000:03:15.250 recently Brent was actually talking 00:03:17.12900:03:17.139 about just how oxygen is each metal so 00:03:21.30000:03:21.310 bad so okay well let's go over to the 00:03:23.39900:03:23.409 condensate system okay and we'll talk a 00:03:24.99000:03:25.000 little bit about that okay well we've 00:03:27.11900:03:27.129 walked over to a 350 horsepower mobile 00:03:29.87900:03:29.889 boiler room and this actually has a 00:03:31.55900:03:31.569 condensate system in it so Steven we've 00:03:34.08000:03:34.090 just talked a little bit about the 00:03:35.00900:03:35.019 deaerator now let's move to the 00:03:36.86900:03:36.879 condensate system and talk about how 00:03:38.58000:03:38.590 this works 00:03:39.39000:03:39.400 it's pretty much the same set up we're 00:03:41.58000:03:41.590 introducing water here we have a 00:03:43.46900:03:43.479 solenoid valve instead of a modulating 00:03:45.17900:03:45.189 valve here so we've got two probes the 00:03:47.42900:03:47.439 top of the tank when the probe hits the 00:03:49.74000:03:49.750 dropped off the bottom the water drops 00:03:52.43900:03:52.449 off the bottom probe it energizes this 00:03:54.27000:03:54.280 the solenoid valve when the water gets 00:03:56.33900:03:56.349 back up to the top probe it shuts that 00:03:58.25900:03:58.269 valve off just to fluctuate the water up 00:04:01.08000:04:01.090 and down so the water is introduced here 00:04:03.08000:04:03.090 through the make up water still have a 00:04:05.28000:04:05.290 preheater steam pre here that comes in 00:04:08.00900:04:08.019 but it's going in through a sparging 00:04:09.99000:04:10.000 system so what we have in there is a 00:04:11.67000:04:11.680 stainless steel pipe with two hundred 00:04:14.15900:04:14.169 eight inch holes drilled in it at angles 00:04:16.28900:04:16.299 they're shooting up into the water and 00:04:17.69900:04:17.709 that will preheat the water we typically 00:04:20.03900:04:20.049 run that between 180 00:04:21.64000:04:21.650 in 190 degrees better get rid of about 00:04:24.21900:04:24.229 95% of the oxygen out of the water the 00:04:26.86000:04:26.870 rest of it we have to clean it by 00:04:28.15000:04:28.160 chemical injection with sulfite to get 00:04:29.83000:04:29.840 the rest of that option now that water 00:04:31.21000:04:31.220 okay so Chemical actually gets to gets 00:04:33.46000:04:33.470 that out of it cleans what a derailleur 00:04:35.80000:04:35.810 we clean then we use sulfite to get get 00:04:38.17000:04:38.180 rid of the rest of it okay and then 00:04:39.21900:04:39.229 obviously once you do that chemical 00:04:40.89000:04:40.900 cleaning that sulfite you know there is 00:04:44.26000:04:44.270 there something you have to do in the 00:04:45.40000:04:45.410 boiler that that you introduce that into 00:04:48.07000:04:48.080 the border so that's going to create a 00:04:49.33000:04:49.340 little bit of sludge so that has to be 00:04:50.95000:04:50.960 blown out of order when you daily 00:04:52.27000:04:52.280 blowdown okay so why why da why 00:04:57.07000:04:57.080 condensate system loose if most of the 00:04:59.68000:04:59.690 time you'll see a condensate system on a 00:05:01.57000:05:01.580 smaller system a lot of times is 00:05:03.40000:05:03.410 strictly capital the deaerator system is 00:05:06.49000:05:06.500 probably three times the cost of a 00:05:08.20000:05:08.210 condensate system so it's strictly 00:05:09.70000:05:09.710 dollars and cents and if you've got a 00:05:12.18900:05:12.199 lot of return coming back then that 00:05:14.40900:05:14.419 return water is already treated very 00:05:16.90000:05:16.910 little oxygen in it so it's not nearly 00:05:19.18000:05:19.190 as aggressive as soft water is if you've 00:05:22.24000:05:22.250 got a lot of soft water a lot of make up 00:05:23.89000:05:23.900 water you really want to look at a 00:05:25.36000:05:25.370 derailer system versus the condensate is 00:05:27.18900:05:27.199 really the big thing is of course it's 00:05:29.58900:05:29.599 preheating the water because you 00:05:30.79000:05:30.800 certainly don't want to introduce cold 00:05:32.11000:05:32.120 water into a boil can't put cold water 00:05:33.64000:05:33.650 in the boiler you'll shock it and then 00:05:35.11000:05:35.120 tubes loosen the tube sheet you'll have 00:05:37.02900:05:37.039 all kinds of problems okay appreciate 00:05:38.62000:05:38.630 you hanging out with us again and 00:05:40.64900:05:40.659 there's a difference between the 00:05:42.39900:05:42.409 deaerator system as well as a condensate 00:05:44.37900:05:44.389 system and we'll see you next time on 00:05:46.12000:05:46.130 the boiling point well appreciate 00:05:48.33900:05:48.349 Stephan stopping by and talking to us a 00:05:50.02000:05:50.030 little bit about the condensate system 00:05:51.39900:05:51.409 and the deaerator 00:05:52.30000:05:52.310 we're going to be at power gen we'll 00:05:53.92000:05:53.930 have our tradeshow booth as always and 00:05:56.11000:05:56.120 again we'll be supporting wounded 00:05:58.27000:05:58.280 warriors make sure you stop by and see 00:05:59.80000:05:59.810 us and get that free t-shirt like us on 00:06:02.14000:06:02.150 facebook follow us on twitter and 00:06:04.14900:06:04.159 subscribe to that youtube channel we 00:06:06.55000:06:06.560 always appreciate you hanging out if you 00:06:08.14000:06:08.150 like our videos share them we'll see you 00:06:10.48000:06:10.490 next time 00:06:11.02000:06:11.030 on the boiling point
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