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Heat Exchanger Tube Bundle Extraction Process

WEBVTT
Kind: captions
Language: en

00:00:20.430
we are now inside a refining plans and
00:00:24.390 00:00:24.400 we have to pull out to tube bundles
00:00:27.240 00:00:27.250 weighing 24 tons diameter one thousand
00:00:31.979 00:00:31.989 eight hundred and fifty millimeter ice
00:00:34.500 00:00:34.510 about 20 meter from the ground
00:00:48.330 00:00:48.340 you
00:01:05.600 00:01:05.610 while our operator makes a routine check
00:01:09.350 00:01:09.360 of the machine diesel and oil levels but
00:01:13.280 00:01:13.290 personnel has already prepared the tools
00:01:15.980 00:01:15.990 accessories necessary I bolts balance
00:01:19.760 00:01:19.770 and keval near the heat exchanger
00:01:38.840 00:01:38.850 [Music]
00:01:46.740 00:01:46.750 00:02:17.570 00:02:17.580 00:02:25.240 00:02:25.250 00:02:42.160 00:02:42.170 bringing the traction carriage we pull
00:02:45.040 00:02:45.050 out of the tube bundle for about Swan
00:02:47.770 00:02:47.780 1.2 meter so as to leave the space
00:02:51.040 00:02:51.050 necessary for the hydraulic support
00:02:53.740 00:02:53.750 carriages
00:03:15.450 00:03:15.460 00:03:53.800 00:03:53.810 we pass on to the hooking up and
00:03:56.839 00:03:56.849 hoisting of the tip sheet with the
00:03:59.420 00:03:59.430 extraction carriage and we completely
00:04:01.880 00:04:01.890 extraction being careful to distribute
00:04:04.460 00:04:04.470 the weight of the bundle on the carriage
00:04:06.589 00:04:06.599 and on the support carriages
00:04:10.680 00:04:10.690 00:04:22.760 00:04:22.770 00:04:48.560 00:04:48.570 once the weight of the puller is
00:04:50.910 00:04:50.920 balanced we completely release the cable
00:04:54.060 00:04:54.070 that is trying it to the heat exchangers
00:04:56.400 00:04:56.410 shell and we strive to do the sentence
00:04:58.830 00:04:58.840 with a crane
00:05:07.959 00:05:07.969 00:05:21.610 00:05:21.620 once it reached the ground the tube
00:05:24.700 00:05:24.710 bundle is removed from the structure and
00:05:27.310 00:05:27.320 it is ready for the maintenance
00:05:29.080 00:05:29.090 operations
00:05:31.870 00:05:31.880 00:05:54.230 00:05:54.240 when the maintenance phase has been
00:05:56.700 00:05:56.710 completed the to bundle is loaded again
00:05:59.939 00:05:59.949 onto the established and ring pushed all
00:06:02.369 00:06:02.379 the way back also in this case is the
00:06:06.390 00:06:06.400 way to the bundle distributed over the
00:06:08.790 00:06:08.800 various support carriers and on the main
00:06:10.920 00:06:10.930 carriage the okay is given to the crane
00:06:13.890 00:06:13.900 for the hoisting phase only after having
00:06:16.890 00:06:16.900 accurately balanced the machine with the
00:06:19.499 00:06:19.509 bundle when it is in position we align
00:06:23.309 00:06:23.319 the puller to the heat exchanger attach
00:06:27.749 00:06:27.759 the safety cable that was previously
00:06:30.269 00:06:30.279 placed on the flange on the shell side
00:06:32.089 00:06:32.099 to the side hydraulic cylinders and we
00:06:35.700 00:06:35.710 complete the Anchorage to the heat
00:06:37.379 00:06:37.389 exchanger
00:06:48.380 00:06:48.390 00:06:55.239 00:06:55.249 in the delicate inserting maneuver
00:06:58.109 00:06:58.119 during which the independent movement of
00:07:01.119 00:07:01.129 the hydraulically controlled supports or
00:07:03.789 00:07:03.799 the hoisting carriages is fundamental
00:07:06.339 00:07:06.349 for the gauge and rapid success of the
00:07:08.589 00:07:08.599 operation
00:07:18.780 00:07:18.790 00:07:27.159 00:07:27.169 00:07:45.980 00:07:45.990 having extracted the stripes the
00:07:49.200 00:07:49.210 insertion is completed with a sheet
00:07:51.630 00:07:51.640 coming to entirely touch the gaskets
00:08:06.200 00:08:06.210 00:08:19.080 00:08:19.090 00:08:19.360 00:08:19.370 00:08:22.370 00:08:22.380

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