Cryomech PT415 Installation, Operation And Routine Maintenance Manual Download Page 76

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073

Appendix A

Main Assembly Drawing

Reliquefier Stand Assembly
(Optional)

Mounting the Reliquefier to
Optional Stand

Summary of Contents for PT415

Page 1: ...PT415 Helium Reliquefier INSTALLATION OPERATION and ROUTINE MAINTENANCE MANUAL...

Page 2: ...rer Cryomech Inc reserves the right to add change modify or delete any or all information contained herein without prior written notice Revisions to this document may be issued at the time such change...

Page 3: ...iew Section 2 Warranty Section 3 Safety Section 4 Inspection and Unpacking Section 5 Specifications Section 6 Installation Section 7 Operation Section 8 Routine Maintenance Appendix A Appendix B Spray...

Page 4: ...1 1 Section 1 Overview...

Page 5: ...e Liquid t can be insta m gas from ga upplies the c The operation nsion cycle A package wh he cold head es to cool it mech cryoge helium flex l ad and carry lo follows An oi urned from th the oil from...

Page 6: ...ification enefits of Tube Cold He e free service ube technolog ssure control trical power a etween mainte fluctuation fro ration and ma efits of the A1000 Series he following fe data logging face of f...

Page 7: ...on ow are used w cryorefriger abetical order this section couplings is nts e g that c the cold head e potential for pment See IE nic system th The advanta 1 3 etc and lettere performed in d or hollow...

Page 8: ...sists of a com Cryorefrigera yorefrigerator lacer or pisto re corrugated ge and the col or Flex Lines corrugated s rogen Plant m rs to the exte ety of the syst rator gerator is a c be instead of 1 4...

Page 9: ...r Min ters per Minut ale Pipe Thre xygen Free H ounds per Squ ch Conta Inc Drive NY 13211 315 455 25 15 455 2544 pport cryome www cryomec sed as a syno nes and cold h s are used in hread nute te ead H...

Page 10: ...2 1 Section 2 Warranty...

Page 11: ...ling char warranted fo e specified tem the warra r in any situati anty If you pl Cryomech S on guidelines ld head mus t be taken wh be assemblies magnetic field e cold head ill damage th g of the cold...

Page 12: ...w come into c elium leaks not be covere ss than 10 inc is not covere er serviceable ty Contact C on 8 m must be 9 of the conta uch higher th rade the cold e helium by esulting from system Wate e or b...

Page 13: ...3 1 Section 3 Safety...

Page 14: ...et by th an equivalen Recognized T he same stan bol designate ndbook sign ould read the ound on the c and Informatio g message is ons could resu An electrical precautions c ced on Cryom fies that alte...

Page 15: ...t in significa ccompanying the best per at does not in yomech Cryo nd cautions a d routine mai ations CAU quefier in an l void the war ditions conta tion CAU magnetic field CAU extending ou elicate Pl...

Page 16: ...ocal electric compressor p ssor package 3 3 ation CAU n guidelines c pressor pack WA t be positione r lines to the CAU equirements in in Section 5 e warranty CAU water inlet an pressor pack CAU an 10...

Page 17: ...quefier 3 4 um flex lines CAU when connec cedure can c and helium CAU come into c elium leaks not be covere CAU ss than 10 inc is not covere WA couplings fr he line to acce ufficient force perating CA...

Page 18: ...erature is mu severely degr he helium by ng from a syst 3 5 enance CAU no user servi e warranty THE HELIU ber CAU p couplings cement can is equipped WAR nnected from m CAU bar 34 kilop e system If t C...

Page 19: ...o ng part of the s Aeroquip ut first relievi ow off the cou 3 6 CAU system Wate WA coupling from ng the helium upling with su UTION er getting into RNING m the helium m charge T ufficient force o the...

Page 20: ...4 1 Section 4 Inspection and Unpacking...

Page 21: ...e com 4 1 n and U IMPO MAGE DO N CT CRYOME cuments any v re packing cr ed The walls and each othe eded the top crate by unfas inside of the n activated ev amage beside and all other an envelope w ing...

Page 22: ...elium re reliquefier for especially on eliquefier box reliquefier or es eel helium fle or cord y signs of dam ord is complet r and compres 4 2 5 for the we d more than 5 uipped with ca h your system d...

Page 23: ...dy p 4 3 stem is shipp e yomech compressor A number and omponents IMPO fier box to mi material rewra box The orig protect the he ckage on th ent the wheels age to the pal the compres mpressor pack cur...

Page 24: ...5 2 Section 5 Specifications...

Page 25: ...helium reliquefier in any situation that does not meet the specifications in this section will void the warranty If you plan to operate the system outside any of the specified conditions contact Cryo...

Page 26: ...e 0 C Figure 5 1 Cooling water requirement 0 2 4 6 8 10 12 14 16 18 20 22 24 0 8 1 0 1 2 1 4 1 6 1 8 2 0 2 2 2 4 2 6 2 8 3 0 3 2 Water Flow Rate LPM Water Pressure Drop bar Water Flow Rate GPM Water P...

Page 27: ...r use 6560 ft 2000 m Environment Pollution Degree 2 Pollution Degree 2 Installation Category II Category II Maximum relative humidity 80 for T 88 F Decreasing linearly to 50 at 104 F 80 for T 31 C Dec...

Page 28: ...the system The Pulse Tube Cryorefrigerator supplies the cooling to liquefy the helium The complete cryorefrigerator consists of two major components the Helium Compressor Package and the Pulse Tube Co...

Page 29: ...bly The diode cable connects this receptacle to the cold head temperature monitor and pressure controller C Vapor Gas Inlet The boil off helium from the dewar cryostat enters the condensing chamber th...

Page 30: ...t For maximum performance it is important that the liquid helium leaves the liquid return line inside your cryostat at a level which is in the gaseous helium and 8K To install the Helium Reliquefier C...

Page 31: ...the system drops to below 1 Atm air might enter the system and solidify on the Cold Head heat exchangers This will reduce the efficiency of the Helium Reliquefier and possibly block the flow of liqui...

Page 32: ...1000 Series Compressor Package including switches and valves It also describes the functions of all connectors electrical cords and gauges on the front panel Low Pressure Aeroquip Low Pressure Gauge H...

Page 33: ...uge should read the pressure specified in Appendix A Control Panel The control panel houses the compressor controls and system display Cold Head Motor Connector The cold head motor cord attaches to th...

Page 34: ...8 FPT 3 8 Female National Pipe Thread Power Cord The power cord supplies power from the wall to the entire system 5 5 2 Control panel description Figure 5 6 Control panel of the compressor package 5 C...

Page 35: ...the compressor is switched off with the Compressor Off button or when one of the compressor s internal safety switches has tripped 5 capacitive touch screen The touch screen displays system status war...

Page 36: ...section Figure 5 7 15 Pin connector diagram Inputs Three remote inputs are provided to start stop and inhibit operation of the compressor For INPUTS a low or false is a voltage differential of less t...

Page 37: ...supply may also be used for other purposes provided the current limit is not exceeded Input pin descriptions Pin 15 RMT_ON Issues START compressor command on RISING edge Pin 14 RMT_OFF Issues STOP co...

Page 38: ...em I O 15 pin connector refer to the cm db15 pdf file This file can be located on the ship disk that was sent with each system in the Control Panel Computer Interface Package folder You can also downl...

Page 39: ...Specifications 5 15 Figure 5 8 System I O wiring diagram Internal Supply Local Mode...

Page 40: ...Specifications 5 16 Figure 5 9 System I O wiring diagram Internal Supply Remote Mode...

Page 41: ...Specifications 5 17 Figure 5 10 System I O wiring diagram External Supply Local Mode...

Page 42: ...Specifications 5 18 Figure 5 11 System I O wiring diagram External Supply Remote Mode...

Page 43: ...system under a vacuum in the dewar The controller has been programmed to monitor the pressure every 250 milliseconds The heater power is updated every 250 milliseconds and the display is updated twice...

Page 44: ...the up and down arrow button J Temperature Diode Receptacle The temperature diode receptacle is connected to a silicon diode mounted to the cold head s helium condenser inside the dewar The diode cab...

Page 45: ...6 2 Section 6 Installation...

Page 46: ...than 500 gauss will void the warranty CAUTION The Liquid Helium Return Line extending out of the side of the Helium Re liquefier Main Assembly is extremely delicate Please handle with care Do not ben...

Page 47: ...ted on an adjustable stand If you have purchased the stand from Cryomech Inc please follow the installation instruction of the stand If you choose to build your own stand please use the 8 screw holes...

Page 48: ...an o ring fitting to connect to the Re liquefier Main Assembly and a needle valve Cryomech has supplied the other end of the vapor line with an o ring fitting and a 1 4 MNPT adapter fitting to connect...

Page 49: ...ns Figure 6 5 Pressure Controller Back Panel 6 4 1 Set the Pressure Controller If your cryostat boil off rate is smaller than the liquefaction rate of the re liquefier it is necessary to apply heat to...

Page 50: ...requirements in Section 5 If water that does not meet the cooling water specifications in Section 5 is introduced into the system even for cleaning purposes it will void the warranty CAUTION Do not ap...

Page 51: ...Be sure to follow all local electrical codes and guidelines 3 Make sure that the dedicated circuit breaker is turned OFF 4 The ground or earth wire in the power cord is either green 60 Hz systems or...

Page 52: ...igh pressure and low pressure helium flex lines are not interchangeable due to the size of the Aeroquip couplings attached to the ends of the flex lines Before connecting the flex lines to the compone...

Page 53: ...ssure port on the compressor package front panel The high pressure port is marked HIGH Tighten the connector until a positive stop is felt 7 Connect the other end of the helium flex line to the high p...

Page 54: ...kage IMPORTANT The system is shipped from the factory with excess helium in order to allow for some loss when assembling system components Complete this step ONLY if the actual system pressure exceeds...

Page 55: ...7 1 Section 7 Operation...

Page 56: ...se compressor motor overheating and possible failure Indications of voltage operation outside that range will void the compressor warranty 6 Make sure the flow rate and temperature range of the coolin...

Page 57: ...ff the circuit breaker on the front panel of the compressor package b Turn off the dedicated circuit breaker to disconnect the system from power at the source to prevent electrical shock c Examine the...

Page 58: ...es can signify degradation in performance that could result from the beginning of a problem that requires attention Cryomech recommends keeping regular logs of key measurements at intervals that make...

Page 59: ...sor Coil the cold head motor cord in preparation for transport or storage 6 Disconnect the instrumentation cord from the reliquefier 7 Turn off the water supply at the source 8 Using two wrenches disc...

Page 60: ...igure 7 2 Figure 7 2 Disconnecting flex lines from a cold head 12 Install the dust plugs that originally came with the system and are stored in the tool kit on the female Aeroquip couplings attached t...

Page 61: ...tics 7 7 2 System starts no pressure fluctuation SYMPTOM System starts no bounce in the pressure gauges no refrigeration POSSIBLE CAUSE 1 Cold head motor cord not connected to the cold head and or to...

Page 62: ...an error occurs or a stop request is received Helium Over Temp Recovery Delay WAIT x x is a number counting down in minutes seconds When x is zero compressor will start Compressor ON request received...

Page 63: ...essure Delta Pressure Too Low The differential pressure is below the low set point verify static pressure verify line orientation lines may be reversed High to Low Static Pressure Too High The static...

Page 64: ...ow High pressure is approaching the low set point verify static pressure check historical data to determine if a leak may have occurred Low Pressure Running Low Low pressure is approaching the low set...

Page 65: ...ures reduce flow rate or increase temperature 7 7 7 Error and warning set points The trip and clear set points for all the errors and warnings are listed in the following table Error Message Lock Out...

Page 66: ...ure Running High 280 PSIG 19 3 bar Static Pressure Running Low 170 PSIG 11 7 bar Water In Temp Running High 85 F 29 C Water In Temp Running Low 45 F 7 C Water Out Temp Running High 110 F 43 C Water Ou...

Page 67: ...Operation 7 12 Syracuse NY 13211 Phone 315 455 2555 Fax 315 455 2544 Email cryoservice cryomech com Website www cryomech com...

Page 68: ...8 1 Section 8 Routine Maintenance...

Page 69: ...the helium reliquefier will void the warranty CONTACT CRYOMECH IF THE HELIUM RELIQUEFIER NEEDS TO BE RETURNED FOR SERVICING 8 4 Replace the adsorber Required tools Quantity Description Comment 1 1 Op...

Page 70: ...three wrenches disconnect the Aeroquip coupling between the adsorber and the oil separator as shown in Figure 8 1 Figure 8 1 Disconnecting the Aeroquip adsorber 5 Remove the nut holding the high press...

Page 71: ...access port 8 6 Recharge helium Required tools and equipment Quantity Description Comment 1 3 4 Open end wrench For Aeroquip coupling 1 Service Aeroquip coupling For service access port 1 Vacuum charg...

Page 72: ...e sure the service valve is closed 6 Attach the service Aeroquip coupling to the service access port Figure 8 2 Service valve and access port 7 Attach a charging line from the service Aeroquip to a ty...

Page 73: ...desired amount of helium pressure 13 Slowly open the service valve to add helium to the system The final helium charge in the system is specified in Section 5 CAUTION No more than 5 PSIG 34 bar 34 kil...

Page 74: ...ium flex lines are detached from the compressor package and or the cold head If an Aeroquip coupling needs cleaning Wipe the mating surfaces of the coupling with a dry lint free cloth After wiping blo...

Page 75: ...ance 8 7 Main power cord If the power cord becomes damaged a replacement should be obtained from Cryomech Cold head motor cord If the cold head motor cord becomes damaged a replacement must be obtaine...

Page 76: ...073 Appendix A Main Assembly Drawing Reliquefier Stand Assembly Optional Mounting the Reliquefier to Optional Stand...

Page 77: ...Appendix A A 1 Figure A 1 Reliquefier Main Assembly Drawing...

Page 78: ...ly Tools Required hex wrench 2 wrench s 7 16 wrench 1 Carefully unpack the main beam assembly and base assembly 2 Using a hex wrench loosen the main beam side supports only enough to be able to move t...

Page 79: ...faces the side of the base assembly with the single rear post mounted to it Do not fully tighten the hardware down Note This is step takes two people to complete 4 Slide the main beam side supports i...

Page 80: ...e bolt from the washer B Slide the mounting hardware up C Tighten the bolt with using the hex wrench as support using the wrench lining the threads up the hex wrench for the washer with the hole and f...

Page 81: ...way from the counter weight tank as shown by loosening the fourth bolt 8 Install the rear support beam onto the rear post by sliding it vertically depicted below while keeping the mounting hardware lo...

Page 82: ...n beam 10 With the rear support beam able to slide vertically on the main beam and single post on the rear of the base assembly slide the rear support beam until it is just below the bottom of the win...

Page 83: ...racket using 4 5 16 18 x 1 mounting bolts and nuts as shown in pictures 12 Install the Reliquefier bottom support bracket using the bottom 2 5 16 18 x 1 mounting bolts and nuts These bolts should be l...

Page 84: ...slack in the steel cable until the loop in the cable reaches the top hole of the Reliquefier bottom bracket and install the cable retaining bolt as shown 14 Install the other 2 5 16 18 x 1 mounting b...

Page 85: ...Appendix A A 9 15 Fill the counter weight tank with water and using the post level level the stand before mounting Cryomech Reliquefier Counter Weight Tank Fill Post Level...

Page 86: ...ping tube to the mounting plate of the Reliquefier assembly Carefully remove the shipping tube taking care not to damage the drain leg 3 Ensure that there is enough room to stand the Reliquefier witho...

Page 87: ...y 24 from the bottom bracket 6 Carefully mount the Reliquefier on the lower mounting bracket with the drain leg located opposite the vertical post on the stand 7 While holding the Reliquefier lower th...

Page 88: ...he mounting plate align with the mounting holes on the lower bracket Secure the Reliquefier to the bracket using the five 5 5 16 18 UNC 2B screws supplied 10 Tighten the screw securing the Reliquefier...

Page 89: ...Appendix B Spray Lubricant Instructions...

Page 90: ...system The purpose of this work instruction is to document the proper use of TFL 50 Dry Lube on Cryomech systems with Aeroquip connectors Related documents and work instructions TFL 50 MSDS Connection...

Page 91: ...en ends of the Aeroquips Doing so will contaminate the system and void the warranty Apply lubricant to the Aeroquips only after they are hand tightened together 3 Before using this product carefully r...

Page 92: ...on of the female Aeroquip Figure B 5 Apply lubricant to swivel portion 5 Apply a small amount of TFL 50 to the threaded portion of the male Aeroquip Figure B 6 Apply lubricant to threaded portion 6 Us...

Page 93: ...x B B 4 Disassembly 1 Apply a small amount of TFL 50 to the swivel portion of the female Aeroquip as shown in Figure B 5 2 Use wrenches to loosen and remove the Aeroquips see manual for instructions 3...

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