Pulojekiti ya Rupsha 800MW Combined Cycle Power Plant (Khulna) ndi pulojekiti yayikulu kwambiri ya EPC ya turbine imodzi ya gasi ku Bangladesh. Malowa ali ku Khulna City, Bangladesh, pamtunda wa makilomita 7.7 okha kuchokera mumzinda wa Khulna.
Wogulitsa ndalama ndi mwini wake ndi Bangladesh Northwest Power Generation Co., Ltd. (NWPGCL), ndipo kontrakitala wamkulu wa EPC ndi mgwirizano wa Shanghai Electric Group Co., Ltd. (SEC) ndi Ansaldo (AEN) waku Italy, ndi Fujian Yongfu Electric Power Design Co., Ltd. (YONGFU) wa gawo lofufuza ndi kupanga polojekiti.Pulojekiti ya siteshoni yamagetsi ya turbine ya gasi ya 800MW ku Bangladesh Rupusha ikuphatikizapo ma turbine awiri a gasi a "F" (Alstom GT26), ma jenereta awiri a turbine ya gasi, ma boiler awiri otentha, ma turbine awiri ozizira ndi mpweya ndi ma jenereta awiri a turbine ya nthunzi. Malo opangira magetsi amagwiritsa ntchito gasi wachilengedwe ngati mafuta akuluakulu komanso dizilo ya HSD yothamanga kwambiri ngati mafuta owonjezera. Mphamvu ya malo opangira magetsi imatumizidwa kunja kwa mzere ndi ma loops awiri a 230kV ndikulumikizidwa ku substation yakumwera kwa PGCB National Grid Khulna.
Pampu yamadzi ya OTC feed ya siteshoni yamagetsi ya turbine ya gasi ya 800MW ku Bangladesh Rupusha imagwiritsidwa ntchito popereka madzi mosalekeza ku OTC ya turbine ya gasi komanso kupereka madzi ochotsera kutentha ku OTC desuperheater ndi pressure reducer (onani Chithunzi 3). Pali mayunitsi awiri onse, gawo lililonse lili ndi mapompo awiri amadzi ochotsera kutentha a OTC okhala ndi mphamvu ya 100%, limodzi likuyenda ndipo lina limakhala lokhazikika. Dzina lapakati lotumizira: OTC water supply; PH value: 9.2~9.6; hardness: 0mmol/l; conductivity: ≤ 0.3ms/cm; oxygen content: ≤ 7mg/l; iron ions: ≤ 20 mg/l; copper ions: ≤ 5mg/l; Muli silicon dioxide: ≤ 20mg/l.
Mu ntchito yophatikizana ya chipangizochi, madzi ochokera ku chitofu chotenthetsera madzi (HRSG) chopondereza kwambiri amalowa mu OTC yopondereza kwambiri, ndipo kutentha komwe kumatulutsidwa ndi mpweya wotentha wobwezeretsedwa kumalowa mu dongosolo loyendera madzi ndi nthunzi.
Pampu yamadzi ya OTC imafunika kuti ikwaniritse magwiridwe antchito osiyanasiyana a OTC ya turbine ya gasi. Pampu yoyendetsa ikagwa mwangozi, pampu yoyimirira imatha kugwira ntchito yokha. Kuti ikwaniritse zofunikira zapadera zoyambira, kuzimitsa ndi kuyesa, imatha kuyendetsedwa pamanja pamalopo, ndipo ili ndi mawonekedwe owongolera kutali a DCS mchipinda chowongolera mayunitsi.
Mapampu anayi amadzi oyendera madzi a OTC omwe ali mu siteshoni yamagetsi ya turbine ya gasi ya 800MW ku Rupsha, Bangladesh adagulidwa ndi Shanghai Electric Group Co., Ltd. (SEC) kudzera mu bid. Pambuyo pa maulendo angapo olankhulana zaukadaulo, mafunso ndi mayankho apakanema, komanso zokambirana zamabizinesi, pamapeto pake adakhala gulu. Pampu ya SLDT ya centrifugal yokhala ndi magawo ambiri yomwe idapangidwa ndikupangidwa ndi chomera cha Dalian yalengeza bid yake yopambana.
Pampu yamadzi ya OTC feed imagwiritsa ntchito pampu ya API610-BB4 yokhala ndi malekezero awiri yothandizira chipolopolo chimodzi chogawanika mopingasa, chopangidwa ndi kupangidwa ndi chomera cha Dalian cha Liancheng Group. Chitsanzo chake ndi pampu ya SLDT80-260D×9 yokhala ndi makwerero ambiri.
Pompo yamadzi ya OTC, momwe pompo iyi imagwirira ntchito ikugwirizana ndi chitetezo cha chipangizo chonse, ndipo zofunikira pachitetezo ndi kukhazikika ndizambiri.
Pa mapampu a madzi odyetsera a OTC, chinthu choyamba choyenera kuganizira ndi mtundu wapamwamba, kukhwima, chitetezo ndi kudalirika kwa pampu, komanso kusinthana kwaukadaulo, upangiri ndi kufufuza ndikofunikira. Pampu ya madzi odyetsera a OTC ndiye zida zofunika kwambiri pa siteshoni yamagetsi ya turbine ya gasi ya 800MW. Pokhapokha posankha ogulitsa abwino kwambiri komanso ukadaulo wopangidwa bwino komanso wopanga zinthu, ndi pomwe magwiridwe antchito a zida zamagetsi nthawi zonse angatsimikizidwe, kukulitsa zofuna zamakampani komanso kuzungulira kwanthawi yayitali kwa siteshoni yamagetsi ya turbine ya gasi ya 800MW.
Kupambana kwa mpikisano wa pampu yamadzi odyetsa ya OTC ya siteshoni yamagetsi ya Rupsha 800MW ya turbine combined cycle ku Bangladesh kukuwonetsa kuti pampu yamadzi odyetsa ya OTC ya kampaniyo pankhani yopanga magetsi pogwiritsa ntchito gasi yadziwika bwino ndi makasitomala chifukwa cha kusintha kwa mphamvu zake, komanso kulimbikitsa utsogoleri waukadaulo wa kampaniyo mumakampani. Kulimbikitsa mpikisano pamsika.
Kuphatikiza apo, pampu ya SLDT series BB4 multi-stage centrifugal yomwe idapangidwa ndikupangidwa ndi chomera cha Dalian cha Liancheng Group yagwiritsidwa ntchito motsatizana mu projekiti yopangira coking ya Shanxi Lubao Group Co., Ltd. kuti ithandizire pampu yothira madzi ofunda yothira zinyalala (kutentha kwa madzi ophikira T=158℃), ndi Cathay Zhongke Clean The waste heat boiler feed water pump (kutentha kwa madzi ophikira T=120-130℃) ndi mapulojekiti ena auinjiniya mu projekiti yopanga magetsi ya Energy Technology Co., Ltd.
Mwachidule, kutengera lingaliro la chitukuko chobiriwira, kukonza bwino zinthu, kasamalidwe kopanda tsankho, kupitiriza kupatsa makasitomala ntchito zapamwamba, kugwira ntchito ndi makasitomala kuti apange mphamvu zoyera, zopanda mpweya woipa, zotetezeka komanso zogwira ntchito bwino, kupitirizabe kuyenda m'njira yopita ku chitukuko cha mphamvu zapamwamba, ndikupitirizabe kupanga mapulojekiti abwino komanso opanda mpweya woipa. Cholinga ndi cholinga chosasintha cha fakitale ya Dalian ya Liancheng Group.
Nthawi yotumizira: Julayi-21-2021