 Thursday, January 05, 2012, 10:21, Isaac Earle, Maintenance, Target 1, Cooling, Defeated T1 and T2 cooling package vacuum interlocks.
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Defeated T1 and T2 cooling package vacuum interlocks at 1-C panel on South mezzanine in Meson Hall to allow cooling packages to continue running
after beamlines are vented.
Notified operations. |
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Monday, January 30, 2012, 16:44, Isaac Earle, Maintenance, Target 1, Cooling, Completed T1 Cooling Package MRO
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Replaced all o-rings and filters on the T1 cooling package. Replaced resin can. Refilled package
and restarted.
Can inlet resistivity at 9.8M |
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Thursday, February 02, 2012, 16:54, Isaac Earle, Repair, Target 2, Cooling, T2 Device Air Line Issue
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While checking operation of the M9 and M20 beam blockers earlier this week, a strange noise was noticed coming from the T2 cooling package area. It
is a squealing sound that starts when M9BB, M20BB, or T2 profile monitor are actuated and continues for approximately 30 seconds, then stops. The
source was eventually narrowed down to somewhere on the air supply line coming from the air amplifiers on the south mezanine. When the air amplifiers |
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Thursday, February 09, 2012, 17:19, Isaac Earle, Repair, Target 1, Cooling, T1 & T2 General MRO
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The following work was performed on the T1 cooling package:
- New filter housing installed for Col. A filter. The new housing has a drain valve to prevent water spills during future filter changes.
- Ball valve installed upstream of Col. A filter to allow proper isolation of filter during filter changes. |
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Tuesday, March 20, 2012, 10:31, Isaac Earle, Repair, Target 1, Cooling, T1 Cooling Package - Potential Water Leak
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The T1 expansion tank warning level sensor had tripped and the level was approximately 1cm from the base of the tank. No trip warning was observed
when Tom Lyth checked the panels last week. The T1 cooling package and target monolith were inspected and no water was observed. Two puddles
of water were found in the BL1A tunnel around the T1 package area: one directly below the 1AQ9 Cable Interlock Tray, and another approximately 1.5m to |
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Wednesday, March 21, 2012, 17:28, Isaac Earle, Repair, Target 1, Cooling, T1 Package Water Leak - Update
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The water level in the T1 cooling package expansion tank was checked again today approximately 24 hours after it was refilled. The level
had dropped about 5cm, equating to roughly 3.5L of water lost.
The T1 package was inspected thoroughly and no water was found. A leak on the target in the beamline is suspected. The T1 package has |
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Thursday, March 22, 2012, 13:58, Isaac Earle, Repair, Target 1, Cooling, T1 Package Water Leak - Update
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Vacuum group pumped down on the T1 & T2 volumes (because there is no cold trap on the T1 pump) for approximately 1 hour this morning. A
significant amount of water was found in the base of the cold trap which confirms our suspicions of a water leak on the T1 target.
Tomorrow we will transfer the T1 target from the beam line to the hot cell for inspection, leak checking, and repair. |
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Thursday, May 24, 2012, 18:26, Isaac Earle, Repair, Target 2, Cooling, Water Leak From T2 Cooling Package (Disconnected from Target)
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Today I noticed a "NOT OK" signal from T2 water expansion tank warning level sensor. I checked the water level in the tank and
confirmed that the water level in the tank had indeed dropped. The water package is currently not connected to the target so it is not possible for
this water to enter the beam line. |
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Monday, May 28, 2012, 17:17, Isaac Earle, Repair, Target 2, Cooling, T2 Water Loss Update
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The T2 cooling package, the top of the T2 monolith, and the Hansen water connections which connect the package to the target were inspected and
no evidence of a water leak was found. Kim wipes had been stuffed inside the female Hansen fittings after they were disconnected on April 12th, and
these were also completely dry. I checked with control room and there are no log entries regarding anyone starting the cooling package during the |
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Thursday, June 21, 2012, 13:38, Isaac Earle, Standard Operation, Target 2, Cooling, T2 Water Package Started
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The T2 water package was reconnected to the target and started after being shut-off since April 12, 2012. The M9 and M20 groups do not anticipate
having to vent the T2 volume, so the package will be left running in preparation for BL1A start-up in early July. There was no change in T2 vacuum
levels during start-up, and therefore no water leaks into the vacuum volume. |
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Friday, June 22, 2012, 13:48, Isaac Earle, Development, Target 1, Cooling, T1 & T2 Expansion Tank Level Sensor Recording Enabled
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Mike Mouat enabled recording for T1 and T2 expansion tank warning and trip level sensors on XTPAGE/XSTRIP.
XSTRIP output is in discreet integers as follows:
2 = Both sensors OK |
Tuesday, June 26, 2012, 09:05, Isaac Earle, Maintenance, Target 1, Cooling, T1 & T2 Target Water Flow Transducers Serviced 
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The target water outlet flow transducers on the T1 and T2 cooling packages were serviced (new shaft, paddle wheel, & o-ring) to address a noisy
signal. The service corrected the noisy signal. Additionally, it appears the worn parts were causing the transducers to read high, as both
dropped approximately 1 gallon/minute after the service. Both transducers would occasionally trip the high flow warning (8.5gpm), and should now |
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Tuesday, July 17, 2012, 15:30, Isaac Earle, Development, Target 1, Cooling, T1 & T2 Expansion Tank Level Warnings Added
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Mike Mouat and Juan Pon have modified the control system so that the control room will receive a message when the warning or trip level sensors
for the T1 & T2 expansion tanks read "NOT OK". The message also displays the current water height in the tank. This will help
with earlier detection of water leaks from the cooling package or from the target ladder in the vacuum volume when the vacuum interlock has been defeated. |
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Thursday, September 13, 2012, 18:09, Isaac Earle, Maintenance, Target 1, Cooling, September Shutdown T1 & T2 MRO
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The following tasks were performed during the 2012 September Shutdown:
- Both targets moved to position 0 in preparation for testing of profile monitors (portable ladder control box was used for controlling ladder
motors) |
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Tuesday, January 29, 2013, 15:55, Isaac Earle, Maintenance, Target 2, Cooling, T2 H.E. Transported to Warm Cell
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Friday Jan 25:
- Both sides of heat exchanger drained, disconnected, and capped
- Heat exchanger transported to warm cell (field from H.E. approximately 15 |
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Wednesday, March 06, 2013, 12:13, Isaac Earle, Maintenance, Target 2, Cooling, T2 Heat Exchanger MRO 7x
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- The new tube array was picked up from Kaltech on Feb 8th (observed vessel holding 60psi on hydro test at their shop)
- Vacuum leak checked at TRIUMF: would not pump down
- Applied 20psi air, and found leaks on both tube sheets using Snoop |
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Friday, April 12, 2013, 13:28, Isaac Earle, Standard Operation, Target 1, Cooling, Cooling Packages Leak Tight
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The T1 and T2 expansion tanks were filled on Monday April 8th. There was no change in the level when inspected today (April 12th). Visual
inspection of the packages also found no leaks. |
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Friday, April 12, 2013, 17:33, Isaac Earle, Development, Target 1, Cooling, T1 & T2 high-temp limit switch installation, wiring, and commissioning complete
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Installation, wiring, and commissioning of the high temperature limit switches for the T1 and T2 cooling packages was completed today as part of SAS
project SASP0120. The relay output from the switches was wired in series with the Central Safety System signals for T1 and T2 (cable number 13250
and 12250 respectively) in break-out panel #2 on the Meson Hall south mezzanine. There were already 3 other circuits wired in series with each signal |
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Friday, April 19, 2013, 09:55, Isaac Earle, Development, Target 1, Cooling, T1&T2 cooling package safety/standards compliance upgrade complete (SASP0120)
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Yesterday (April 18th) the T1 and T2 cooling package PRV outlet lines were routed to the active drain in the 1A tunnel. All items for the safety
and standards compliance upgrade for T1 and T2 as specified in Document-68861 are
now complete. |
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Friday, August 23, 2013, 10:39, Isaac Earle, Repair, Target 1, Cooling, T1 Cooling Package Inlet Pressure (P1) Sensor
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The T1 cooling package inlet pressure (P1) has been dropping since approximately May 5, 2013 from the regular operating pressure of approximately
75psi to the present value of 47psi. An increase in the rate of decrease started around August 5th as well as increased noise in the signal. Plots
attached below. No corresponding change in the outlet pressure, and no change in the water flow rate (also no change in inlet and oulet temperatures) |
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