PE0625 Doc Perfo-翻译.doc

October 30, 2013Page 2/15CNOOC Oil & Petrochemicals Co., Ltd. Huizhou RefineryPACKINOX Heat Exchanger Xylene Isomerisation Unit Thermal & Hydraulic Performances Analysis1. Main points（关键点） & associated recommendations （相应的推荐值）: UnitXylene Isomerisation UnitPKX ref. PE0625Heat ExchangerE-701Start-up date14/06/2009Years of operation4.5 yearsPACKINOX Services visits19/01/09 (Inspection before start up)Latest performances date/09/13Thermal Performances (Hot Approach Temperature)(热端温度)SatisfactoryHAT remains in（属于） rather same range（相同的范围） than first operation year and related evolution（演变） is in line with what expected.Note : The slightly higher value（值） than design recorded just after first start up is due to slightly different operation（操作） conditions (in particular （尤其）lower gas flow rate).Hydraulic Performances (Feed Stream Pressure Drop)(冷料压差)Satisfactory.（符合要求）DP remains in rather same range (50/60 Kpa) than first operation year. Latest available data seems quite （in line with）与。一致 main driving forces (flow rates)Hydraulic Performances (Effluent Stream Pressure Drop)热端压差Satisfactory.HAT remain in rather same range (70 Kpa) than first operation year (spot data). Latest available data seems quite in line with main driving forces (flow rates)Thermal & Hydraulic & Mechanical Performances(Spray Bars Pressure Drop)氢气压降Satisfactory.（符合要求的）Values available only over last April 2010. Latest value (in the range of 140 kPa) are satisfactory. Mechanical performances (Shell Skin Temperature) 壳体压力No T5 values（标准） provided to PACKINOX（板换）.Recommendations 推荐值(Installation + Instrumentation + Operating data)1) Improve instrumentations仪表 （as per）依据 PACKINOX recommendations (as per drawing next page) : - DCS recorded measure for shell skin temperature T5.2) Forward some information related to the process: typical treated feed as per Excel file here to attached.Recommendations (Operations + Maintenance + Inspection)As per general recommendations :1) Keep regular operating performances monitoring (daily continuous data shall be forwarded).2) Plan to perform an internal inspection + test once every 5 years of operation. 3) Ensure on site availability of spare parts ( see Appendix No. 2)._Headquarters : 14, rue de Bassano 75116 Paris (FRANCE)Phone : (33) 1 53 67 41 41 - Fax : (33) 1 53 67 41 42Engineering and Manufacturing Plant : BP 187 71105 Chalon-sur-Sane Cedex (France)Phone : (33) 3 85 90 48 54 - Fax : (33) 3 85 90 48 06SAS au capital de 5 590 144 Euros - RCS Nanterre B333914760 - VAT FR 72333914760October 30, 2013Page 8/15Transmission of operating data shall be continued in order to have a continuous figure over the operating life of the PACKINOX Heat Exchanger (every six months or if significant change is observed). PACKINOX general recommendations are described in Appendix No. 4.2. Hot End Approach Temperature (HAT) : 3. Pressure Drops (DP) :2.1. Feed stream Pressure Drop (DPR1) :2.2. Effluent stream Pressure Drop (DPR2) : 2.3. Spray Bars Pressure Drop (DPR4) :4. Temperatures : Effluent inlet temperatureTHE1U2S2N or N1/N2U1E2S1DPR1Recycle Gas inlet temperatureC3C1C2T2T4T5T1T1AT1BP2P1Combined Feedoutlet temperatureVessel skin temperatureDPR2Effluent streampressure dropPxEffluent outlet temperatureEffluent outlet pressure (separator pressure)DPR5Combined Feed vs. Effluent differential pressureT3Recycle Gas inlet pressure (discharge compressor)Combined Feed streampressure dropDPR4Spray Barspressure dropP3Effluent inlet pressureLiquid Feed inlet temperatureLiquid Feed inlet pressureAppendix No. 1: Impact / Influence of Inlet Parameters_Headquarters : 14, rue de Bassano 75116 Paris (FRANCE)Phone : (33) 1 53 67 41 41 - Fax : (33) 1 53 67 41 42Engineering and Manufacturing Plant : BP 187 71105 Chalon-sur-Sane Cedex (France)Phone : (33) 3 85 90 48 54 - Fax : (33) 3 85 90 48 06SAS au capital de 5 590 144 Euros - RCS Nanterre B333914760 - VAT FR 72333914760Page 10/15Appendix No. 2: Spare Parts Follow-up Table CNOOC Oil & Petrochemicals Co., Ltd. Huizhou Refinery PACKINOX Heat Exchanger (Xylene Isomerisation Unit)DescriptionRecommended QuantityTypical Delivery scheduleQuantity delivered with Heat ExchangerRecommendedProcess Expansion bellows for :- combined feed outlet.1 of each recommended as capital spare parts.23 weeks1Process Expansion bellows for :- effluent inlet.1 of each recommended as capital spare parts.23 weeks1Process Expansion bellows for :- effluent outlet.1 of each recommended as capital spare parts.23 weeks1Liquid Feed Distributor(s) = Spray bar(s)1 set (1 or 2 spray bars according to the Heat Exchanger design) is recommended as capital spare parts.23 weeks1Gaskets for blind flanges :- auxiliary nozzles,- manhole(s),- spray bar(s) holder(s)200% as capital spare parts.200% as maintenance turnaround spare parts.10 weeks200%200%Bolts for blind flanges : - auxiliary nozzles,- manhole(s),- spray bar(s) holder(s)20% (with a minimum of 4 of each kind) as capital spare parts.20% (with a minimum of 4 of each kind) as maintenance turnaround spare parts.12 weeks10%20%Note : Material & size are not described as they are customised project by project. Details are provided in Heat Exchanger Drawings and Manufacturer book.Appendix No. 3 : Operating Limits CNOOC Oil & Petrochemicals Co., Ltd. Huizhou Refinery PACKINOX Heat Exchanger (Xylene Isomerisation Unit)Recycle gas inlet(Compressor discharge)DP feed sideNormal : 80 kPaMaximum 200 kPaDPR1DP effluent sideNormal : 80 kPaMaximum see DPR5Effluent outletDP Spray barsNormal : 100 kPaMaximum 600 kPaDPR2DPR5DPR4To FurnaceFrom last reactorMaximum Differential : 730 kPaHAT(C)HAT Normal : 52C design conditionsMaximum 80CPage 15/15Appendix No. 4: PACKINOX Heat Exchanger general recommendations.1 Spare PartsThe following spare parts are recommended for PACKINOX Heat Exchangers :DescriptionRecommended QuantityProcess Expansion bellows for :- combined feed outlet,- effluent inlet,- effluent outlet.1 of each recommended as spare capital spare parts.Liquid Feed Distributor(s) = Spray bar(s)1 set (1 or 2 spray bars according to the Heat Exchanger design) is recommended as capital spare parts.Gaskets for blind flanges :- auxiliary nozzles,- manhole(s),- spray bar(s) holder(s)200% as commissioning spare parts.200% as operation spare parts.Bolts for blind flanges : - auxiliary nozzles,- manhole(s),- spray bar(s) holder(s)20% (with a minimum of 4 of each kind) as commissioning spare parts.20% (with a minimum of 4 of each kind) as operation spare parts.Note : Material & size are not described as they are customised project by project. Details are provided in Heat Exchanger Drawings and Manufacturer book.2 Performances MonitoringTo evaluate performances over the time, PACKINOX requires the transmission on a regular basis of daily average operating data (see typical example below).Daily average data easily collectable from refinery systems represents the best compromise as compared to spot data more difficult to analyse.At receipt of these data, PACKINOX will issue a Performances analysis memo with any recommendations for future operations, maintenance, 3 - InspectionThe PACKINOX Heat Exchanger requires very limited inspection, however the following preventative inspections should be performed during scheduled maintenance shutdown.DescriptionEvery 5 yearsOthersBundleTop Expansion Bellows (visual inspection)YesBottom Expansion Bellows (visual inspection) YesSpray Bar(s) Expansion Bellows (visual inspection)YesWelded Walls (visual or camera inspection)YesVisual or camera (borescope) inspection of Effluent Inlet & OutletYesVesselInternal inspection of the vessel walls & weldsWill depend of local regulationsExternal Inspection of the vessel walls & welds (after removing insulation)The inspection intervals given are only intended as a guide, if necessary these intervals may be extended to fit with convenient shutdown schedules.4 Testing & Non destructive examinationThe PACKINOX Heat Exchanger requires very limited testing & non destructive examination, however the following preventive (or mandatory according to some vessel codes) inspections should be performed during the scheduled maintenance shutdown.DescriptionEvery10 yearsOthersBundleTop Expansion Bellows (dye penetrant non destructive examination)YesBottom Expansion Bellows (dye penetrant non destructive examination)YesSpray Bar(s) Expansion Bellows (dye penetrant non destructive examination)YesPlate Bundle tightness test YesVesselNon destructive examination of the vessel internal walls & weldsWill depend of design code & local regulationsNon destructive examination of the vessel external walls & weldsVessel hydraulic pressure test in vertical positionThe inspection interva