TECHNICAL SPECIFICATION. SPC-4T Stirling Process Cryogenerator

Transcription

1 TECHNICAL SPECIFICATION SPC-4T Stirling Prcess Crygeneratr Reference _00 Issue Date April 20, 2016 Stirling Crygenics is a registered trade name f DH Industries BV Fr mre infrmatin n the Stirling Crygenics prduct range, please cntact: DH Industries BV Science Park Eindhven EB Sn The Netherlands Tel. +31 (040) Fax +31 (040) inf@dh-industries.cm

2 1. INTRODUCTION In this technical specificatin the different technical aspects f SPC-4T are described, tgether with different ptinal sub-systems t integrate the SPC-4T int a larger ttal system. Typical characteristics f the SPC-4T are: a quick start up, lw energy cnsumptin reliable peratin wrldwide technical supprt and service Stirling technlgy with highest efficiency Thank yu fr yur interest in ur cmpany and ur prducts, we lk frward t yur valuable respnse. Yurs sincerely, Technical Specificatin: _00 SPC-4T Date: April 20, 2016 Page 2 f 13 Stirling Crygenics is a registered trade name f DH Industries BV Fr mre infrmatin n the Stirling Crygenics prduct range, please cntact: DH Industries BV Science Park Eindhven EB Sn The Netherlands Tel. +31 (040) Fax +31 (040) inf@dh-industries.cm

3 2. PROCESS DESCRIPTION Stirling Crygenics Crygeneratrs utilize the highly efficient Stirling thermdynamic cycle t prduce lw temperatures dwn t crygenic temperatures. Stirling Crygenics Crygeneratrs cme generally in 2 cnfiguratins: as a ne cylinder unit (SPC-1) r as a 4 cylinder unit (SPC-4). Bth are available in single stage (fr temperatures dwn t apprx. 60K) and 2-stage cnfiguratin (fr temperatures dwn t 15K). Stirling 1 Cylinder 2-Stage Crygeneratr (SPC-4T). The SPCT-4T is a tw-stage Stirling crygeneratr which simultaneusly prvides refrigeratin at 20 K and at 80 K temperature levels by means f tw separate heat exchangers. The SPC-4T uses pressurized helium gas as medium t transfer cld t the applicatin. The helium is transferred by use f tw crygenic fans. These fans each have their wn frequency cnverter which allws them t run at any speed up t 350Hz. Islatin lsses n the system are minimized by means f specific vacuum insulatin n the crygeneratr head. Transfer line assembly and ther equipment cnnected t the crygeneratr are vacuum islated as well. By default each heat exchangers cnsists f a wund spiral tube and a cld gas fan. The fans circulate the gas in separate lps. The crygeneratr has 4 prcess cnnectins: tw cnnectins (in- and utlet) fr the 20K applicatin and 2 cnnectins fr the 80K applicatin. Typically the 20K stage is cnnected t the main applicatin, and the 80K stage is used t cl a heat shield r secndary applicatin at liquid nitrgen temperatures. Using the 80K stage hwever is nt mandatry and nt using it will actually increase the cling capacity f the 20K stage by 5-7%. Technical Specificatin: _00 SPC-4T Date: April 20, 2016 Page 3 f 13 Stirling Crygenics is a registered trade name f DH Industries BV Fr mre infrmatin n the Stirling Crygenics prduct range, please cntact: DH Industries BV Science Park Eindhven EB Sn The Netherlands Tel. +31 (040) Fax +31 (040) inf@dh-industries.cm

4 CryFan (CryZne brand): CryZne s CryFan are high speed crygenic gas circulatrs, specially designed t transprt crygenic gasses with minimum lsses. All CryFans have the same generic design cncept. The main parts are the impeller and vlute. Their dimensinal shape determines the functinality and efficiency f the fan. The impeller and vlute are psitined in the vacuum/crygenic part f the system. The impeller is driven by a high-rpm electric mtr t generate the flw. The electrical mtr Is lcated at the utside/warm part f the crygenic system. All cmpnents are placed within a single husing, since in the CryFan design, the mtr is installed within the pressurized gas area. This psitining avids the use f a rtating seal and hence the risk f leakage. In rder t create a thermal barrier between the mtr (at ambient temperature) and the cld impeller, a lng thin stainless steel shaft is utilized. T avid a cld bearing (which is prne t wear and tear), a cantilever set-up is used with a highly balanced shaft and impeller. This set-up ensures a minimum MTBF f hurs. The mtr with shaft and impeller can be munted frm the utside. This allws remval f the cmplete insert fr maintenance, withut disrupting the vacuum. The CryFan(s) are munted in the vacuum area f the cld head f the Crygeneratr. The capacity f the CryFans is cntrlled thrugh the speed (RPM) f the fan frm apprx %. This is integrated in the cntrl unit fr easy cntrl. Technical Specificatin: _00 SPC-4T Date: April 20, 2016 Page 4 f 13 Stirling Crygenics is a registered trade name f DH Industries BV Fr mre infrmatin n the Stirling Crygenics prduct range, please cntact: DH Industries BV Science Park Eindhven EB Sn The Netherlands Tel. +31 (040) Fax +31 (040) inf@dh-industries.cm

5 3 System cntrl The System Cntrl f the SPC-4T is based n a Siemens PLC (S versin 12). This cntrl unit is an integral part f the SPC scpe f supply. The System Cntrl will safeguard the prper functining f the SPC-4T, prtecting it frm internal and external faults (n il pressure, n water flw, etc) and will cntrl the capacity f the SPC-4T using a frequency cnverter t adapt the mtr speed. With a remte signal frm the custmer, the crygeneratr is perated (start/stp). With the RPM-regulatin f the frequency cnvertr, it is pssible t g dwn t 73% f the maximum cling pwer at the prevailing temperature and pressure. The crygeneratr RPM is adjusted by a frequency cntrller (between % f max. RPM) which is cntrlled by a 4-20 ma signal frm the custmer. The PLC will dampen the custmers cntrl signal t prevent the crygeneratr frm ramping up r dwn t fast. The temperature f each stage and the incming and utging gas temperatures f each stage can be read n the PLC and these temperatures will be sent t the custmer as an 2-20 ma signal fr mnitring. 2.1 Cntrl mdes In all mdes the SPC-4T crygeneratr is nly allwed t start if the fan is running. The fan speed can be manually set n the User Interface between 6000 and RPM in all mdes Nrmal mde The SPC-4T crygeneratr is in peratin, bth fans are running and all standard safety cntrls are active. The crygeneratr can either be started n the User Interface r via the standard remte ON/OFF cntrl if the system is in nrmal mde Test mdes There are 2 test mdes: Mde 1 - Crygenratr test mde: the crygeneratr is in peratin fr 15 minutes Mde 2 - CryFan test mde: bth fans are running but the crygeneratr is nt in peratin. Technical Specificatin: _00 SPC-4T Date: April 20, 2016 Page 5 f 13 Stirling Crygenics is a registered trade name f DH Industries BV Fr mre infrmatin n the Stirling Crygenics prduct range, please cntact: DH Industries BV Science Park Eindhven EB Sn The Netherlands Tel. +31 (040) Fax +31 (040) inf@dh-industries.cm

6 4 SCOPE OF SUPPLY 1 SPC-4T Crygeneratr: Basic 4-cylinder 2-stage Crygeneratr 2-stage thermdynamic Stirling cycle sectin Vacuum insulated cld head, including 2 heat-exchangers, per cylinder Electric mtr and cupling Munting frame and skid VJ Line cnnectin Internal helium gas lines and water lines Cnnectins t pwer, water and helium supply/buffer Safety sensrs (fr mnitring the Crygeneratr) Temperature sensr in 20K cld head 2 Ndin CryFans: Integrated in the vacuum area f the cld head Nte: If applicable 1 CryFan is als pssible Other CryFans are available upn request Cnnectin pieces: Cunter cnnectin(s) fr the VJ line t cnnect t the custmer s applicatin 1 Cntrl panel: Fr autmatic cntrl f Crygeneratr (start/stp, safe guarding); T cntrl the frequency cnverter f the Crygeneratr fr capacity cntrl (70-100% f cling capacity) CryFans speed (= flw cntrl) Operatr interface with Siemens TFT tuchscreen Others: Dcumentatin including perating and maintenance instructins (English language) the SPC-4T will be manufactured, assembled and tested in Sn, The Netherlands Stirling Crygenics Crygeneratrs meet the Eurpean CE and PED safety standards, as well as the IP54 and IEC Fr ther natinal standards that may be applicable in yur cuntry, please cntact us fr ther ptins Technical Specificatin: _00 SPC-4T Date: April 20, 2016 Page 6 f 13 Stirling Crygenics is a registered trade name f DH Industries BV Fr mre infrmatin n the Stirling Crygenics prduct range, please cntact: DH Industries BV Science Park Eindhven EB Sn The Netherlands Tel. +31 (040) Fax +31 (040) inf@dh-industries.cm

7 Optins: Set f cnsumable parts fr perating hurs & maintenance tls All cnsumables parts t perate the initial perating hurs Maintenance tl set fr 6.000hrs maintenance Services (n-site): Installatin and cmmissining Site acceptance test Basic peratr training Remte access: T reduce supprt cst and shrten the respnse time, the SPC-4T can ptinally be supplied with an industrial VPN ruter fr easy remte access t the PLC and HMI. This ffers the pssibility t trublesht systems remtely withut ging n-site. Technical Specificatin: _00 SPC-4T Date: April 20, 2016 Page 7 f 13 Stirling Crygenics is a registered trade name f DH Industries BV Fr mre infrmatin n the Stirling Crygenics prduct range, please cntact: DH Industries BV Science Park Eindhven EB Sn The Netherlands Tel. +31 (040) Fax +31 (040) inf@dh-industries.cm

8 5 Grss cling pwer The SPC-4T Crygeneratr grss cling pwer is shwn in the graph belw. Figure 1: grss crygeneratr capacity. The net cling pwer will be lwer due t fan islatin lsses and increased static lsses via the fan shaft. See ur technical specificatin fr the Ndin CryFan fr calculating the fan lsses. Technical Specificatin: _00 SPC-4T Date: April 20, 2016 Page 8 f 13 Stirling Crygenics is a registered trade name f DH Industries BV Fr mre infrmatin n the Stirling Crygenics prduct range, please cntact: DH Industries BV Science Park Eindhven EB Sn The Netherlands Tel. +31 (040) Fax +31 (040) inf@dh-industries.cm

9 6 CryFan characteristics Bth Ndin CryFans prduce a static head in meters depending n the speed f the fan and the vlume flw prduced by the fan. This is independent f the medium (type f gas) used, as well as the perating pressure. The specific medium and perating pressure will influence the dynamic lsses f the fan. The actual dp generated by the CryFan depends n the density f the specific medium that is being used, s at actual gas temperature and pressure. The a The Ndin CryFan can perate between and RPM and, based n the perating speed, the generated head and vlume flw will vary. Figure 2: perfrmance f the Ndin fan. Technical Specificatin: _00 SPC-4T Date: April 20, 2016 Page 9 f 13 Stirling Crygenics is a registered trade name f DH Industries BV Fr mre infrmatin n the Stirling Crygenics prduct range, please cntact: DH Industries BV Science Park Eindhven EB Sn The Netherlands Tel. +31 (040) Fax +31 (040) inf@dh-industries.cm

10 7 TECHNICAL SPECIFICATIONS Capacity lad n 1 st stage): Available dp fr custmers applicatin Pwer cnsumptin Pwer supply Required cling water supply 700W at 60K at system utlet 120W at 15K at system utlet See enclsed fan and SPC-4T curve. 45 kw 3Phs, 400V-480V, 50Hz-60Hz, incl. variable frequency drive l/h at 15 C(incl. 20% EG) Dimensins 2,32m x 0,73m x 1,40m (l x w x h) Weight kg Nise level <74 dba. MAWP (maximum allwable prcess pressure) Nrmal prcess pressure 30 bar (435 psi) 25 bar (363 psi) Technical Specificatin: _00 SPC-4T Date: April 20, 2016 Page 10 f 13 Stirling Crygenics is a registered trade name f DH Industries BV Fr mre infrmatin n the Stirling Crygenics prduct range, please cntact: DH Industries BV Science Park Eindhven EB Sn The Netherlands Tel. +31 (040) Fax +31 (040) inf@dh-industries.cm

11 8 INSTALLATION Installatin f a SPC-4T Crygeneratr is relatively easy. It invlves lcating the StirLNG-4 at its (final) psitin and cnnecting it t all applicable interfaces. Electric pwer availability and cnnectins is part f the custmer site preparatin (accrding t lcal regulatins). Installatin f the SPC-4T is mandatry required t be perfrmed by ne f ur service engineers. (see Appendix 1 fr SPC-4T dimensins and cnnectin psitins). Technical Specificatin: _00 SPC-4T Date: April 20, 2016 Page 11 f 13 Stirling Crygenics is a registered trade name f DH Industries BV Fr mre infrmatin n the Stirling Crygenics prduct range, please cntact: DH Industries BV Science Park Eindhven EB Sn The Netherlands Tel. +31 (040) Fax +31 (040) inf@dh-industries.cm

12 9. SERVICE AND MAINTENANCE Service With ur Service Agreements we cver all required (preventive) maintenance t ensure a reliable perating f the SPC-4T. Depending n custmer s persnal needs, the service cncept can be individualized and tailred t the specific requirements. With this apprach we ffer a chice f ptins fr planning and perfrming maintenance. Whether yu re priritizing high levels f prduct safety, want t keep a tight hld n yur maintenance csts at all times, r wish t ptimize yur ttal cst f wnership. Maintenance Each SPC-4T requires preventive (minr) maintenance nly after each 6,000 perating hurs. Specific Cnsumable parts sets are available fr this maintenance (please see ur price qutatin). At 36,000 perating hurs each SPC-4T requires a mre extensive (majr) maintenance. All maintenance inspectins can be dne at site by ur Service engineers. As an ptin, als custmer technicians can be trained t perfrm this maintenance but they need t be fficially certified. A (regular) training at ur premises is mandatry in this case. Maintenance inspectin Interval [perating hurs] Duratin (n site) Preventive (minr) maintenance every 6,000 hurs 8 hurs Extensive (majr) maintenance 36,000 hurs 16 hurs Nte: the SPC-4T has t be shut dwn (t be warmed up) at least 24 hurs befre cmmencing with each maintenance Technical Specificatin: _00 SPC-4T Date: April 20, 2016 Page 12 f 13 Stirling Crygenics is a registered trade name f DH Industries BV Fr mre infrmatin n the Stirling Crygenics prduct range, please cntact: DH Industries BV Science Park Eindhven EB Sn The Netherlands Tel. +31 (040) Fax +31 (040) inf@dh-industries.cm

13 APPENDIX 1 Final layut is subject t change due t cnfiguratin f the system Technical Specificatin: _00 SPC-4T Date: April 20, 2016 Page 13 f 13 Stirling Crygenics is a registered trade name f DH Industries BV Fr mre infrmatin n the Stirling Crygenics prduct range, please cntact: DH Industries BV Science Park Eindhven EB Sn The Netherlands Tel. +31 (040) Fax +31 (040) inf@dh-industries.cm