Mechanical Infrared Thermography

WEBVTT
Kind: captions
Language: en

00:00:14.720
mechanical systems for many facilities
00:00:17.570 00:00:17.580 machinery is the heart of production
00:00:19.750 00:00:19.760 unexpected failures can interrupt
00:00:21.769 00:00:21.779 production idle workers and cause
00:00:24.320 00:00:24.330 widespread damage
00:00:25.720 00:00:25.730 fortunately infrared thermography can
00:00:28.280 00:00:28.290 detect a number of problems with in
00:00:29.749 00:00:29.759 operating mechanical systems as
00:00:33.170 00:00:33.180 mechanical devices operate heat is
00:00:35.240 00:00:35.250 generated excess forces caused by
00:00:38.390 00:00:38.400 friction misalignment or improper
00:00:41.120 00:00:41.130 lubrication are accompanied by a rise in
00:00:43.310 00:00:43.320 temperature in some cases this increase
00:00:46.430 00:00:46.440 in operating temperature may be present
00:00:47.990 00:00:48.000 for up to several weeks prior to a
00:00:49.430 00:00:49.440 failure perform regulated by a trained
00:00:52.189 00:00:52.199 thermography infrared inspections can
00:00:54.349 00:00:54.359 00:00:55.939 00:00:55.949 operating mechanical systems these
00:00:58.250 00:00:58.260 include the ability to identify
00:01:01.090 00:01:01.100 excessive friction and wear detect
00:01:04.729 00:01:04.739 misalignment in coupled systems document
00:01:08.330 00:01:08.340 over or under lubrication of bearings
00:01:11.620 00:01:11.630 pinpoint areas of refractory damage
00:01:14.860 00:01:14.870 locate underground pipe leaks and
00:01:17.950 00:01:17.960 monitor process heater or boiler tubes
00:01:20.690 00:01:20.700 in this thermogram we see excessive
00:01:23.870 00:01:23.880 heating caused by misalignment within a
00:01:25.609 00:01:25.619 couple system excess force caused by
00:01:28.249 00:01:28.259 even the slightest amounts of
00:01:29.630 00:01:29.640 misalignment can cause large amounts of
00:01:31.819 00:01:31.829 excess heat on bearings and driven
00:01:33.710 00:01:33.720 equipment such excessive heating can
00:01:36.260 00:01:36.270 lead to premature wear and failure of
00:01:37.880 00:01:37.890 the system as well as higher energy
00:01:39.800 00:01:39.810 consumption in this image we can clearly
00:01:42.740 00:01:42.750 see the effects of misalignment excess
00:01:45.170 00:01:45.180 heat on the pump on the left is shown in
00:01:46.999 00:01:47.009 white excess heat is also noted on the
00:01:49.609 00:01:49.619 motor bearing on the right
00:01:55.530 00:01:55.540 detecting motor misalignment in this
00:01:58.410 00:01:58.420 thermogram we once again see the
00:01:59.880 00:01:59.890 excessive heating caused by misalignment
00:02:01.620 00:02:01.630 within a couple system we see excessive
00:02:04.140 00:02:04.150 heat on both the driven device on the
00:02:05.640 00:02:05.650 left as well as the left side of the
00:02:07.290 00:02:07.300 flexible motor coupling many maintenance
00:02:09.690 00:02:09.700 professionals are surprised to learn
00:02:10.980 00:02:10.990 that even the slightest amounts of
00:02:12.390 00:02:12.400 misalignment caused large amounts of
00:02:14.190 00:02:14.200 excessive heating within couplings such
00:02:16.680 00:02:16.690 heat can lead to premature failure of
00:02:18.240 00:02:18.250 the coupling itself resulting in more
00:02:20.280 00:02:20.290 frequent outages more coupling
00:02:22.320 00:02:22.330 replacements and higher maintenance
00:02:24.690 00:02:24.700 costs worn pillow block bearing
00:02:30.230 00:02:30.240 thermography can also be affected and
00:02:32.430 00:02:32.440 quickly identifying and properly
00:02:33.690 00:02:33.700 lubricated or worn bearings this pillow
00:02:36.420 00:02:36.430 block bearing located on a large paper
00:02:38.400 00:02:38.410 machine has heated to the point that it
00:02:40.380 00:02:40.390 is actually causing the steel structure
00:02:41.850 00:02:41.860 to become warm properly lubricated
00:02:44.760 00:02:44.770 healthy bearings should operate close to
00:02:47.340 00:02:47.350 room temperature
00:02:48.740 00:02:48.750 once again thermography can be performed
00:02:51.690 00:02:51.700 quickly without interrupting production
00:02:53.720 00:02:53.730 thermography is especially suited for
00:02:55.980 00:02:55.990 remote inspections such as roller
00:02:57.780 00:02:57.790 bearings on elevated conveyor belt
00:02:59.850 00:02:59.860 system steel transfer ladles thermal
00:03:03.660 00:03:03.670 imaging is also useful in detecting
00:03:05.340 00:03:05.350 thermal deficiencies such as refractory
00:03:07.410 00:03:07.420 breakdown in large vessels on the Left
00:03:10.320 00:03:10.330 we see a refractory line steel transfer
00:03:12.600 00:03:12.610 ladle at work in a foundry
00:03:14.670 00:03:14.680 the thermal image shows a uniform
00:03:16.650 00:03:16.660 temperature gradient across the surface
00:03:18.270 00:03:18.280 of the ladle with no pronounced hot
00:03:20.100 00:03:20.110 spots
00:03:20.900 00:03:20.910 however the ladle on the right is a
00:03:23.310 00:03:23.320 different story a large hot spot here
00:03:25.920 00:03:25.930 indicates refractory breakdown within
00:03:27.930 00:03:27.940 the lining of the ladle left undetected
00:03:30.300 00:03:30.310 a failure of the refractory can cause
00:03:32.820 00:03:32.830 molten steel within the ladle to melt a
00:03:35.009 00:03:35.019 hole in a ladle shell and release tons
00:03:37.500 00:03:37.510 of molten steel onto the factory floor
00:03:39.210 00:03:39.220 in this case thermography provides early
00:03:43.020 00:03:43.030 detection that helps to avoid
00:03:44.699 00:03:44.709 catastrophic failure and personal injury
00:03:48.920 00:03:48.930 defective insulation on equipment
00:03:51.620 00:03:51.630 insulated process equipment can also be
00:03:54.090 00:03:54.100 inspected with thermography in this
00:03:56.310 00:03:56.320 image of an industrial drying oven we
00:03:58.500 00:03:58.510 see evidence of missing and damaged
00:04:00.270 00:04:00.280 insulation which allows excess heat loss
00:04:02.820 00:04:02.830 from a section of the roof uneven
00:04:05.970 00:04:05.980 heating in process equipment not only
00:04:07.530 00:04:07.540 wastes energy but can also be
00:04:09.330 00:04:09.340 uneven or improper heating of the
00:04:11.160 00:04:11.170 manufactured product in some cases
00:04:13.550 00:04:13.560 uneven heating may compromise product
00:04:16.080 00:04:16.090 quality in this facility thermal imaging
00:04:19.140 00:04:19.150 is an integral part of reducing energy
00:04:20.729 00:04:20.739 loss and maintaining product quality
00:04:25.580 00:04:25.590 underground steam line link thermography
00:04:28.590 00:04:28.600 can also be useful in detecting leaks in
00:04:30.719 00:04:30.729 heated or cooled underground piping
00:04:32.490 00:04:32.500 systems here we see a hot spot caused by
00:04:35.340 00:04:35.350 a leak within a varied steam system
00:04:36.930 00:04:36.940 located beneath the sidewalk this
00:04:39.480 00:04:39.490 infrared inspection is being performed
00:04:40.890 00:04:40.900 at night from ground level when a leak
00:04:43.860 00:04:43.870 develops in a steam system steam or
00:04:45.900 00:04:45.910 condensate is lost to the surrounding
00:04:47.490 00:04:47.500 earth if the leak is sufficient for heat
00:04:50.129 00:04:50.139 to reach the surface of the ground the
00:04:52.110 00:04:52.120 thermal imager can help detect the
00:04:53.550 00:04:53.560 location of a leaking pipe detect
00:04:56.850 00:04:56.860 ability of pipe leaks is dependent upon
00:04:58.530 00:04:58.540 several factors including pipe
00:05:00.270 00:05:00.280 construction burial depth operating
00:05:03.000 00:05:03.010 temperature and the amount of loss the
00:05:05.120 00:05:05.130 ghost tomography cannot determine the
00:05:07.409 00:05:07.419 cause of a hotspot excavation of the
00:05:09.629 00:05:09.639 suspect area is required however
00:05:11.730 00:05:11.740 thermography can help to eliminate
00:05:13.740 00:05:13.750 unnecessary and costly excavation by
00:05:16.860 00:05:16.870 directing efforts only to problem areas
00:05:20.270 00:05:20.280 underground steam line leaks one
00:05:23.430 00:05:23.440 alternative to performing infrared
00:05:24.960 00:05:24.970 inspections from ground level is to use
00:05:26.790 00:05:26.800 an aircraft such inspections can be
00:05:29.370 00:05:29.380 performed quickly for large areas such
00:05:31.350 00:05:31.360 as industrial facilities or
00:05:33.080 00:05:33.090 municipalities this composite thermogram
00:05:36.270 00:05:36.280 shows evidence of multiple leak sites in
00:05:38.279 00:05:38.289 an industrial park here leaks are
00:05:41.070 00:05:41.080 indicated by the large amorphous shapes
00:05:43.620 00:05:43.630 along the path of the Buried steam lines
00:05:45.690 00:05:45.700 which are evidence by the straight white
00:05:48.570 00:05:48.580 lines infrared inspection of steam traps
00:05:54.020 00:05:54.030 steam is an odorless colorless tasteless
00:05:56.969 00:05:56.979 gas which is often used to transport
00:05:58.950 00:05:58.960 heat energy within industrial facilities
00:06:01.469 00:06:01.479 in most facilities steam is produced in
00:06:04.260 00:06:04.270 a boiler or steam generator once steam
00:06:07.050 00:06:07.060 reaches the desired temperature and
00:06:08.940 00:06:08.950 pressure it is piped to various
00:06:10.379 00:06:10.389 locations where it is used once steam
00:06:13.230 00:06:13.240 leaves the boiler it begins to cool this
00:06:15.810 00:06:15.820 cooling causes condensate to form within
00:06:17.880 00:06:17.890 the steam lines as condensate builds
00:06:20.430 00:06:20.440 steam temperature decreases causing more
00:06:22.709 00:06:22.719 common
00:06:23.159 00:06:23.169 to form left unchecked this process will
00:06:26.399 00:06:26.409 continue until all of the steam has
00:06:28.110 00:06:28.120 returned to water in order to maintain
00:06:30.390 00:06:30.400 steam system efficiency condensate must
00:06:32.969 00:06:32.979 be quickly removed from the steam system
00:06:34.589 00:06:34.599 in order to do this an automatic
00:06:36.839 00:06:36.849 mechanical valve called a steam trap is
00:06:39.450 00:06:39.460 utilized to discharge condensate while
00:06:41.939 00:06:41.949 retaining live steam within the system
00:06:43.830 00:06:43.840 in this image set we see three inverted
00:06:46.739 00:06:46.749 bucket traps referring to the thermogram
00:06:49.439 00:06:49.449 the trap on the Left shows no apparent
00:06:51.899 00:06:51.909 temperature differential across the trap
00:06:53.760 00:06:53.770 this may be due to cycling of the trap
00:06:56.010 00:06:56.020 or a constant leak here
00:06:59.129 00:06:59.139 contact ultrasound can be used to
00:07:00.990 00:07:01.000 confirm the traps operating condition
00:07:04.640 00:07:04.650 improper fluid flow in this thermogram
00:07:07.679 00:07:07.689 we see an electrical transformer with
00:07:09.209 00:07:09.219 several cold cooling fins this thermal
00:07:11.640 00:07:11.650 pattern is indicative of an internal
00:07:13.589 00:07:13.599 blockage within the radiator tubes such
00:07:16.230 00:07:16.240 a condition causes the transform to run
00:07:17.909 00:07:17.919 hotter than its design limits and can
00:07:19.890 00:07:19.900 cause premature aging and failure of the
00:07:21.899 00:07:21.909 transformer in this case thermography
00:07:24.390 00:07:24.400 quickly provides evidence of this
00:07:25.980 00:07:25.990 condition without ever having to make
00:07:27.929 00:07:27.939 contact
Office location
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Phone: +7 343 216 77 75

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