Service channels between Tracker and PP1 • Installation order • Lessons from Cabling Mock-up • Component status Work done by Auli, Erkki, Giulio, Hans, Jarmo, Michel, Pascal, Pauli, Sébastien, Temuri, … TK Engineering Meeting 19 June 2007, Antti Onnela, CERN
Installation steps 1: Cable channels + 2: Water cooling Tracker STEP 1: Install cable channel, made of 5 sections (sections 1 and 2 are one unit) All attached to HCAL with screws Section 1 Section 2 Section 3 STEP 2: Install 10 mm water cooling pipe, one loop around channels “A” and “C”with its copper cooling plates (not shown here) Copper plates attached to channel pieces with screws Section 4 Section 5 Braze connections in PP1and leak test water circuit PP1
Installation step 3: Temperature and humidity sensors Per PP1 sector the sensors are only in one ½ channel In top and bottom sectors the sensors are in the special ½ channels “Min-max against ECAL”: 1 sensor at far corner away from water cooling 1 sensor next to water cooling Route sensor wires along 10 mm cooling pipe up to connector in PP1
Installation step 3: Temperature and humidity sensors Wires from ECAL area run along the 10 mm water pipes up to the connector (Note: Per channel only “A” or “C” side, never both) “Hot at cable entry”: Tight packing of cables entering PP1 “Cold against ribbons”: On the inside wall below multi-ribbon cables Total amount of sensors per channel:2 temp sensors at ECAL + 2 in PP11 humidity sensor in PP1 D-SUB connector(with humidity sensor)and pre-installed cable to racks
Install male Lancasher fitting + first bend piece • Measure the correct length of the copper pipe end • Remove Lancasher fitting, cut the pipe and solder them together • Install the pipe definitively Installation step 4: Pipes Attach the pipe to the temporary mid-support (subsequent pipes attached to previous ones) Cut the pipe to correct length Solder the pipe with ceramic fitting Clamp the pipe with support block (every 2 pipes) Leak test with Argon (every 2 pipes)
Installation step 5: Pipe insulation, from TK to mid-support 2 layers of 9 mm Armaflex AF insulation, with joining tape In channels 1 and 2 must reduce insulation to allow space of cables. Where possible use 3 mm tape in addition Insulation of individual pipes at TK end is still to be studied: 3 mm tape? Tubular insulation?
Installation step 5: Pipe insulation at mid-support Mid-path support with this element. During pipe installation use temporary support This support shall be slightly closer to optoribbons, to provide space for cables next to water pipe. This support shall also be a bit further away from the pipe bend, to ease insulation joint.
Installation step 5: Pipe insulation from mid-support to PP1 From mid-supports to PP1 use 18 mm insulation or 2 layers of 9 mm.
Installation step 5: Pipe insulation in PP1 Inside PP1 use precut flat pieces, glued together Glued junction from tubular to rectangular section at PP1 entry Insulation of Y-section being done alreardy now!
Installation step 6: Heating cable in PP1 30 W/m heating cable, length ~7 m / standard PP1, Routed on outer surfaces of the pipe channel connection
Installation step 6: Heating cable in PP1 Aluminium or plastic clamps and aluminium tape on top of the cable Heating cable follows the Y-piece (not present in this photo)
Installation step 7: Barrel MS & Ctrl cables Channel sections 1-4 Here we have installed 7 cooling pipes40 multi-service cables This represents the biggest channel occupancy, which is7 cooling pipes38 multi-service cables6 ctrl-cables (≈ 2 MS-cables) Channel section 5
Installation step 7: Barrel MS & Ctrl cables The covers fit, tightly Edges of covers 2 and 5 need to be slightly bent, to avoid scratching cables
Installation step 8: Optoribbons (after removal of nose cone) In section 1 and 2 optoribbons are 8 or 10 side by side, from section 3 to PP1 6 ribbons side by side. Ribbon pre-bundling work to be done in TIF
Installation step 8: Optoribbons Channels for these ribbons to reach the PP1 are at these phi-locations 1 cm All pipes, including TEC pipes, must be in place and insulated before installing optoribbons Installation step 9:TEC cables Last 1 cm of TK volume for TEC cables
Summary of installation order per PP1 * After removal of the nose cone the optoribbon installation can be done in parallel with tasks 4-7.