1. Iyini ikhebula elingangeni manzi?
Amakhebula angasetshenziswa ngokujwayelekile emanzini abizwa ngokuhlanganyela njengamakhebuli kagesi angangeni emanzini (angengeni emanzini). Lapho ikhebula libekwe ngaphansi kwamanzi, ngokuvamile licwiliswa emanzini noma ezindaweni ezimanzi, ikhebula liyadingeka ukuba libe nomsebenzi wokuvimbela amanzi (ukumelana), okungukuthi, kuyadingeka ukuthi kube nomsebenzi wokumelana nokugcwala kwamanzi, ukuze kuvinjwe amanzi ukuthi angacwilisi kukhebula, abangele ukulimala kwekhebula, nokuqinisekisa ukusebenza okuzinzile kwesikhathi eside kwekhebula ngaphansi kwamanzi. Imodeli yekhebula elingangeni manzi evame ukusetshenziswa i-JHS, okungeyekhebula lerabha elingangeni manzi, ikhebula elingangeni manzi liphinde lihlukaniswe ngekhebula lamandla angangeni manzi kanye nekhebula lekhompyutha elingangeni manzi, njll., futhi abamele amamodeli yi-FS-YJY, FS-DJYP3VP3.
2. Uhlobo lwesakhiwo sekhebula elingangeni manzi
(1). Ngezintambo eziwumgogodla owodwa, bopha ii-semi-conductive water blocking tapeku-insulation shield, bopha okujwayelekiletape yokuvimbela amanzingaphandle, bese ucindezela i-sheath yangaphandle, ukuze uqinisekise ukuthintana okugcwele kwesihlangu sensimbi, ukugoqa kuphela i-semi-conductive water blocking tape ngaphandle kwesihlangu sokufakelwa, isihlangu sensimbi asisasonge i-tape yokuvimbela amanzi, kuye ngezinga lezidingo zokusebenza ezingangeni manzi, ukugcwaliswa kungagcwaliswa nge-filler evamile noma i-block block filler. I-lining yangaphakathi kanye nezinto ze-sheath zangaphandle ziyafana nalezo ezichazwe kukhebula eliwumgogodla owodwa.
(2). Isendlalelo sethayiphu ye-aluminium embozwe ngepulasitiki sisongwe ngobude ngaphakathi komgodla wangaphandle noma ungqimba loqweqwe lwangaphakathi njengongqimba olungangenwa amanzi.
(3). Khipha i-HDPE sheath yangaphandle ngokuqondile kukhebuli. Ikhebuli evalekile ye-XLPE engaphezu kuka-110kV ifakwe umpheme wensimbi ukuze ihlangabezane nezidingo zokungenwa kwamanzi. Isihlangu sensimbi sinokungangeneki okuphelele kanye nokumelana okuhle kwamanzi e-radial. Izinhlobo eziyinhloko zomgodla wensimbi yilezi: umkhono we-aluminium ocindezelwe oshisayo, umkhono wokuhola ocindezelwe oshisayo, umkhono we-aluminium oshiselwe kathayela, umkhono wensimbi oshiselwe, umkhono wensimbi odonsayo obandayo njalo njalo.
3. Ifomu elingangeni manzi lekhebula elingangeni manzi
Ngokujwayelekile ihlukaniswe yaba Ukumelana namanzi okuqondile kanye ne-radial okubili. Ukuphikiswa kwamanzi okuqondile kuvame ukusetshenziselwaintambo yokuvimba amanzi, i-powder yamanzi kanye ne-tape yokuvimbela amanzi, ukumelana nomshini wokumelana kwamanzi kulezi zinto ziqukethe amanzi angakwazi ukwandisa impahla, lapho amanzi avela ekupheleni kwekhebula noma kusuka ku-sheath defect angene, le nto izokwandisa ngokushesha amanzi ukuze kuvinjelwe ukusabalalisa okuqhubekayo eduze kwekhebula longitudinal, ukufeza inhloso yekhebula longitudinal elingangeni manzi. Ukumelana namanzi e-radial kutholakala ikakhulukazi ngokukhipha umgodla we-HDPE ongewona owensimbi noma ukucindezela okushisayo, ukushisela nokudweba okubandayo kweshethi yensimbi.
4. Ukuhlukaniswa kwezintambo ezingenamanzi
Kunezinhlobo ezintathu ikakhulukazi zezintambo ezingangeni manzi ezisetshenziswa eChina:
(1). Ikhebuli evalwe ngephepha likawoyela ikhebula elivamile elimelana namanzi. I-insulation yayo kanye nama-conductor agcwele uwoyela wekhebula, futhi kunejakhethi yensimbi (ijazi lomthofu noma ijazi le-aluminium) ngaphandle kwe-insulation, okuyikhebula elingcono kakhulu lokumelana namanzi. Esikhathini esidlule, izintambo eziningi ezihamba ngaphansi kwamanzi (noma ezingaphansi kwamanzi) zazisebenzisa izintambo ezivalwe ngephepha likawoyela, kodwa izintambo ezivalwe ngephepha likawoyela zilinganiselwe ngokuwa, kuba nenkinga ngokuvuza kukawoyela, nokugcinwa kwawo kuyizinkinga, futhi manje asetshenziswa kancane kancane.
(2). Ikhebuli evalekile yerabha ye-ethylene propylene esetshenziswa kakhulu emigqeni yokudlulisa yamandla kagesi aphansi naphakathi emanzini ingenxa yokusebenza kwayo okuphezulu kokufakwa ngaphandle kokukhathazeka “kwesihlahla samanzi”. Ikhebula lerabha elineshehethi elingangeni manzi (Uhlobo lwe-JHS) lingasebenza ngokuphepha emanzini angashoni isikhathi eside.
(3). Intambo yamandla kagesi exhumene ne-Cross-linked (XLPE) ngenxa yezici zayo ezinhle kakhulu zikagesi, ezomshini nezomzimba, futhi inqubo yokukhiqiza ilula, isakhiwo esilula, umthamo omkhulu wokudlulisa, ukufakwa nokugcinwa kokulungiswa kulula, akunqunyelwe ukwehla nezinye izinzuzo, iba yinto esetshenziswa kabanzi kakhulu yokwaleka, kodwa izwela kakhulu umswakama, ekukhiqizeni nasekusebenzeni uma ukufakwa kwamanzi kunokungena kwamanzi, ukudiliza ikhebula lempilo elifushane "i-protein life" Ngakho-ke, ikhebula le-polyethylene insulated elixhunywe esiphambanweni, ikakhulukazi ikhebula le-voltage eliphakathi nendawo neliphezulu ngaphansi kwesenzo se-voltage ye-AC, kufanele ibe "nesakhiwo sokuvimbela amanzi" lapho sisetshenziswa endaweni yamanzi noma endaweni emanzi.
5. Umehluko phakathi kwekhebula elingangeni manzi nekhebula elivamile
Umehluko phakathi kwezintambo ezingangeni manzi kanye nezintambo ezivamile ukuthi izintambo ezivamile azikwazi ukusetshenziswa emanzini. Ikhebula le-JHS elingangeni manzi nalo liwuhlobo lwekhebula lerabha eliguquguqukayo, okokufakwa kwe-rubber insulation, kanye nekhebula le-rubber sheath evamile, ikhebula le-JHS elingangeni manzi livame ukusetshenziswa, kodwa lisemanzini noma ezinye zizodlula emanzini. Izintambo ezingenamanzi ngokuvamile ziyi-3 core, eziningi zazo zisetshenziswa lapho kuxhunywa iphampu, intengo yezintambo ezingenamanzi izobiza kakhulu kunezintambo ezijwayelekile ze-rubber sheath, kunzima ukuhlukanisa ukuthi zingangeni manzi kusukela ekubukeni, udinga ukubonisana nomthengisi ukuze wazi ungqimba olungangeni manzi.
6. Umehluko phakathi kwekhebula elingangeni manzi nekhebula elingangeni emanzini
Ikhebula elingenawo amanzi: vimbela amanzi ukuthi angangeni ngaphakathi kwesakhiwo sekhebula, usebenzisa isakhiwo esingangeni manzi nezinto zokwakha.
Ikhebula lokuvimbela amanzi: Ukuhlolwa kuvumela amanzi ukuthi angene ngaphakathi kwekhebula, futhi akuvumeli ukungena kubude obucacisiwe ngaphansi kwezimo ezithile. Ikhebula lokuvimbela amanzi lihlukaniswe libe yi-conductor water blocking kanye ne-cable core water blocking.
Isakhiwo somqhubi wokuvimbela amanzi: ukwengeza i-powder yokuvimbela amanzi kanye nentambo yokuvimbela amanzi ohlelweni lwentambo eyodwa yocingo, lapho umqhubi engena emanzini, i-powder yokuvimbela amanzi noma intambo yokuvimbela amanzi iyanda ngamanzi ukuvimbela ukungena kwamanzi, yiqiniso, umqhubi oqinile unomsebenzi ongcono wokuvimbela amanzi.
Isakhiwo sokuvimbela amanzi se-cable core: lapho i-sheath yangaphandle yonakalisiwe futhi amanzi engena, i-tape yokuvimbela amanzi iyanda. Lapho i-tape yokuvimbela amanzi ikhula, yenza ngokushesha ingxenye yokuvimbela amanzi ukuvimbela ukungena kwamanzi okuqhubekayo. Ngekhebula le-three-core, kunzima kakhulu ukufeza ukumelana okuphelele kwamanzi kwe-cable core, ngoba igebe eliphakathi le-core cable core likhulu futhi alivamile, noma ngabe ukusetshenziswa kwe-block yamanzi kugcwele, umphumela wokumelana namanzi awumuhle, kunconywa ukuthi umgogodla ngamunye ukhiqizwe ngokuvumelana nesakhiwo sokumelana kwamanzi okukodwa, bese kwakhiwa ikhebula.
Isikhathi sokuthumela: Oct-23-2024