Amaphampu amabili okulayishwa kwe-propane anesilinganiso sokushayela akalwe ku-30 horsepower (hp) asebenza ngokuqhubekayo kumazinga okugeleza okuphezulu okungaphezu komthamo olinganiselwe wokuklama ongamalitha angu-110 ngomzuzu (gpm).Ngesikhathi sokuthulula okuvamile, iphampu isebenza ngo-190 gpm, okuyi- ngaphandle kwejika lephampu.Iphampu isebenza ku-160% Best Efficiency Point (BEP), okungamukeleki.Ngokusekelwe emlandweni wokusebenza, iphampu isebenza kabili ngeviki ngesikhathi sokusebenza esimaphakathi sehora elilodwa ukubaleka ngakunye. iphampu ibe nokulungiswa okukhulu ngemva kweminyaka eyisithupha yokusebenza.Isikhathi sokusebenza esilinganiselwe phakathi kokulungiswa okukhulu cishe inyanga engu-1, okufushane kakhulu.Lawa maphampu abhekwa njengonokwethenjelwa okuphansi, ikakhulukazi njengoba uketshezi lwenqubo lubhekwa luhlanzekile ngaphandle kokuqina okumisiwe.Propane ukuthulula amaphampu kubalulekile ukugcina amazinga e-propane ephephile yokusebenza okuthembekile kwe-natural gas liquids (NGL).Ukufaka ukuthuthukiswa kokusetshenziswa nokunciphisa ukuvikelwa kwepompo kuzovimbela umonakalo.
Ukuze unqume imbangela yokusebenza kokugeleza okuphezulu, phinda ubale ukulahleka kokungqubuzana kwesistimu yokukhipha amapayipi ukuze unqume ukuthi ingabe iphampu iklanywe ngokweqile.Ngakho-ke, yonke imidwebo ye-isometric efanelekile iyadingeka.Ngokubuyekeza imidwebo yamapayipi kanye ne-instrumentation (P&IDs), i-isometrics yamapayipi edingekayo kunqunywe ukusiza ukubala ukulahleka kokungqubuzana.Umugqa wokumunca ophelele wokubuka we-isometric wepompo unikeziwe.Ukubuka kwe-Isometric kweminye imigqa yokukhipha akukho.Ngakho-ke, ukulinganiselwa okuqinile kokungqubuzana komugqa wokukhipha iphampu kwanqunywa ngokusekelwe kumingcele yokusebenza kwepompo.Ngakho-ke, Umugqa wokumunca weyunithi B ucatshangelwa esibalweni, njengoba kukhonjisiwe kokuluhlaza kuMfanekiso 1.
Ukuze kunqunywe ubude obulinganayo bokungqubuzana kwamapayipi wokukhipha amapayipi, kusetshenziswe imingcele yokusebenza kwepompo yangempela (Umfanekiso 2). Njengoba kokubili iloli nomkhumbi oya kuwo kunemigqa yokulinganisa ingcindezi, lokhu kusho ukuthi umsebenzi owodwa wepompo ungahlukaniswa ube kabili. .Umsebenzi wokuqala uwukuphakamisa uketshezi ukusuka ezingeni lamaloli ukuya ezingeni lesitsha, kanti umsebenzi wesibili uwukunqoba ukungqubuzana kwamapayipi axhumanisa amabili.
Isinyathelo sokuqala siwukuthola ubude beshubhu lokungqubuzana obulinganayo ukuze kubalwe ingqikithi yekhanda (ƤHtotal) kudatha etholiwe.
Njengoba ikhanda eliphelele liyisamba sekhanda lokungqubuzana kanye nenhloko yokuphakama, ikhanda lokushayisana linganqunywa nge-Equation 3.
lapho i-Hfr ibhekwa njengenhloko yokungqubuzana (ukulahlekelwa okushayisanayo) yalo lonke uhlelo (okungukuthi imigqa yokumunca nokukhipha).
Ngokubheka uMdwebo 1, ukulahlekelwa kokungqubuzana okubalwe kumugqa wokuncela weYunithi B kuboniswa kuMfanekiso 4 (190 gpm) kanye noMfanekiso 5 (110 gpm).
Ukungqubuzana kwesihlungi kudinga ukucatshangelwa esibalweni.Okuvamile kwesihlungi esingenayo i-mesh kulesi simo iphawundi elingu-1 iyintshi yesikwele (psi), okulingana namafidi angu-3 (ft). Futhi, cabangela ukulahlekelwa ukungqubuzana kwepayipi, okungamafidi angaba ngu-3.
Kafushane, ukulahleka komugqa wokudonsa ngo-190 gpm nokugeleza okulinganiselwe kwepompo (110 gpm) kuku-Equations 4 kanye no-5.
Kafushane, ukulahlekelwa kokungqubuzana emugqeni wokukhipha kunganqunywa ngokukhipha isamba sokungqubuzana kwesistimu i-Hfr kusukela kufriction yomugqa wokumunca, njengoba kuboniswe ku-Equation 6.
Njengoba ukulahleka kokungqubuzana kolayini wokukhipha kubalwa, ubude obulinganayo bokungqubuzana bomugqa wokukhipha bungalinganiselwa ngokusekelwe kububanzi bepayipi elaziwayo kanye nesivinini sokugeleza kwepayipi. yepayipi elingu-4″ ku-190 gpm ibalwa ukuze ibe amafidi angu-7.2.Ngakho-ke, ubude bokungqubuzana obulinganayo bomugqa wokukhipha bungabalwa ngokuya nge-Equation 7.
Ngokusebenzisa ubude obulinganayo bepayipi lokukhipha ngenhla, ukungqubuzana kwepayipi lokukhipha kunoma yisiphi isilinganiso sokugeleza singabalwa kusetshenziswa noma iyiphi isofthiwe yengxenyana yamapayipi.
Njengoba ukusebenza kwefekthri kwepompo okuhlinzekwe ngumphakeli kungafinyelelanga ukugeleza kwe-190 gpm, i-extrapolation yenziwa ukuze kunqunywe ukusebenza kwepompo ngaphansi kokusebenza kokugeleza okuphezulu okukhona. isibalo se-LINEST ku-Excel.Isibalo esimelela ijika lekhanda lepompo singalinganiswa nge-polynomial ye-oda lesithathu.I-Equation 8 ibonisa i-polynomial efanelekile kakhulu yokuhlolwa kwasefekthri.
Umfanekiso wesi-7 ubonisa ijika lokukhiqiza (eliluhlaza) kanye nejika lokumelana (elibomvu) ngezimo zamanje ensimini nevalve yokopha evuleke ngokugcwele.Khumbula ukuthi iphampu inezigaba ezine.
Ukwengeza, umugqa ohlaza okwesibhakabhaka ubonisa ijika lesistimu, kucatshangwa ukuthi i-valve yokuvala ukukhishwa ivaliwe kancane.Ingcindezi elinganiselwe yokuhlukanisa phakathi kwe-valve ngamamitha angu-234. Kuma-valve akhona, lokhu kuyingcindezi enkulu yokuhlukanisa futhi ayikwazi ukuhlangabezana nezidingo.
Umfanekiso wesi-8 ubonisa isimo esihle lapho iphampu yehliswa isuka kuma-impellers amane kuya kwamabili (okuluhlaza okukhanyayo).
Ukwengeza, umugqa ohlaza okwesibhakabhaka ubonisa ijika lesistimu lapho iphampu imiswa futhi ivalve yokuvala ukukhipha ivalwe kancane.Ingcindezi elinganiselwe yokuhlukanisa kuyo yonke i-valve ingamamitha angu-85.Bheka ukubala kwasekuqaleni kuMfanekiso 9.
Uphenyo lomklamo wenqubo lwembule ukucabangela ngokweqile kwekhanda elihlukile elidingekayo ngenxa yokuklama okungalungile, ukungabi khona komugqa webhalansi wegesi/umhwamuko phakathi kwendawo engaphezulu yeloli nengaphezulu lomkhumbi.Ngokwedatha yokucubungula, umfutho we-propane vapor uyahlukahluka. ngokuphawulekayo kusukela ebusika kuya ehlobo.Ngakho-ke umklamo wokuqala ubonakala wenziwe ngomfutho womhwamuko ophansi kakhulu elolini (ubusika) kanye nomfutho womhwamuko ophakeme kakhulu esitsheni (ehlobo) engqondweni, okuyinto engalungile.Njengoba kokubili kuxhumene njalo kusetshenziswa umugqa olinganiselayo, ukuguqulwa komfutho we-vapor kuyoba okungabalulekile futhi akufanele kucatshangelwe ekulinganisweni kwekhanda lokuhluka kwepompo.
Kunconywa ukuthi wehlise ipompo kusuka kuma-impellers amane kuya kwamabili bese ucindezela i-valve yokukhipha cishe ngamamitha angu-85. Thola ukuthi i-valve kufanele igxilwe kuze kube yilapho ukugeleza kufinyelela ku-110 gpm. akukho monakalo wangaphakathi.Uma i-valve yangaphakathi yokumboza ingaklanyelwe izimo ezinjalo, ifektri izodinga ukucabangela isenzo esengeziwe.Ukuze umise, i-impeller yokuqala kufanele ihlale.
U-Wesam Khalaf Allah unesipiliyoni seminyaka eyisishiyagalombili e-Saudi Aramco. Usebenza ngokukhethekile kumaphampu nezigxivizo zemishini futhi ubambe iqhaza ekugunyazweni nasekuqaliseni i-Shaybah NGL njengonjiniyela onokwethenjelwa.
U-Amer Al-Dhafiri uchwepheshe wobunjiniyela onokuhlangenwe nakho kweminyaka engaphezu kwengu-20 kumaphampu nezigxivizo zemishini ze-Saudi Aramco.Ukuze uthole ulwazi olwengeziwe, vakashela ku-aramco.com.
Isikhathi sokuthumela: Feb-21-2022
