1. Menene kebul mai hana ruwa shiga?
Ana kiran kebul ɗin da za a iya amfani da su a cikin ruwa gaba ɗaya da kebul mai hana ruwa (ruwa). Idan aka sanya kebul ɗin a ƙarƙashin ruwa, galibi ana nutsar da shi a cikin ruwa ko wurare masu danshi, ana buƙatar kebul ɗin ya kasance yana da aikin hana ruwa (juriya), wato, ana buƙatar ya kasance yana da cikakken juriyar ruwa, domin hana ruwa nutsarwa a cikin kebul ɗin, haifar da lalacewa ga kebul ɗin, da kuma tabbatar da dorewar aikin kebul ɗin a ƙarƙashin ruwa na dogon lokaci. Samfurin kebul ɗin da aka fi amfani da shi a cikin ruwa shine JHS, wanda ke cikin kebul mai hana ruwa na roba, kebul ɗin hana ruwa kuma an raba shi zuwa kebul mai hana ruwa da kebul na kwamfuta mai hana ruwa, da sauransu, kuma wakilan samfurin sune FS-YJY, FS-DJYP3VP3.
2. Nau'in tsarin kebul mai hana ruwa shiga
(1). Don kebul na tsakiya ɗaya, naɗeTef ɗin toshe ruwa mai rabin-gudaa kan garkuwar rufi, naɗe na yau da kullunTef ɗin toshe ruwaa waje, sannan a matse murfin waje, domin tabbatar da cikakken haɗin garkuwar ƙarfe, sai kawai a naɗe tef ɗin toshe ruwa mai rabin-guda a wajen garkuwar rufi, garkuwar ƙarfe ba ta sake naɗe tef ɗin toshe ruwa ba, ya danganta da matakin buƙatun aikin hana ruwa shiga, ana iya cika cikar da cikawa da cikawa na yau da kullun ko cika bulo na ruwa. Rufin ciki da kayan murfin waje iri ɗaya ne da waɗanda aka bayyana a cikin kebul na tsakiya ɗaya.
(2). Ana naɗe wani Layer na tef ɗin aluminum mai rufi da filastik a cikin murfin waje ko kuma Layer na ciki a matsayin Layer mai hana ruwa shiga.
(3). Fitar da murfin waje na HDPE kai tsaye a kan kebul. Kebul ɗin XLPE mai rufi sama da 110kV an sanye shi da murfin ƙarfe don biyan buƙatun hana ruwa shiga. Kariyar ƙarfe tana da cikakken juriya ga ruwa mai radial. Manyan nau'ikan murfin ƙarfe sune: hannun aluminum mai zafi da aka matse mai zafi, hannun gubar da aka matse mai zafi, hannun aluminum mai welded, hannun ƙarfe mai welded da aka matse mai welded, hannun ƙarfe mai sanyi da aka zana da sauransu.
3. Tsarin kebul mai hana ruwa ruwa
Gabaɗaya an raba su zuwa juriyar ruwa ta tsaye da ta radial guda biyu. Ana amfani da juriyar ruwa ta tsaye donZaren toshe ruwa, foda na ruwa da tef ɗin toshe ruwa, tsarin juriyar ruwa yana cikin waɗannan kayan yana ɗauke da ruwa zai iya faɗaɗa abu, lokacin da ruwan daga ƙarshen kebul ko daga lahani na murfin ya shiga, wannan kayan zai faɗaɗa ruwa cikin sauri don hana ƙarin yaɗuwa tare da kebul na tsayi, don cimma manufar hana ruwa na kebul na tsayi. Juriyar ruwa ta radial galibi ana samun ta ne ta hanyar fitar da murfin HDPE mara ƙarfe ko matsi mai zafi, walda da kuma murfin ƙarfe mai sanyi.
4. Rarraba kebul masu hana ruwa shiga
Akwai nau'ikan kebul guda uku masu hana ruwa shiga da ake amfani da su a China:
(1). Kebul ɗin da aka yi da takarda mai rufi shi ne kebul mafi yawan amfani da shi wajen jure ruwa. Ana cika shi da man kebul na rufi da masu jagoranci, kuma akwai jaket ɗin ƙarfe (jaket ɗin gubar ko jaket ɗin aluminum) a wajen rufin, wanda shine mafi kyawun kebul na jure ruwa. A da, yawancin kebul na ƙarƙashin ruwa (ko na ƙarƙashin ruwa) suna amfani da kebul na takarda mai rufi, amma kebul na takarda mai rufi yana da iyaka saboda raguwar, akwai matsala tare da zubewar mai, kuma kulawa ba ta da daɗi, kuma yanzu ana amfani da su ƙasa da ƙasa.
(2). Kebul ɗin roba mai rufi da ethylene propylene wanda ake amfani da shi sosai a cikin layukan watsawa na ƙarƙashin ruwa mai ƙarancin ƙarfi da matsakaicin ƙarfin lantarki ya faru ne saboda ingancinsa na kariya ba tare da damuwa da "itacen ruwa" ba. Kebul ɗin roba mai rufi da ruwa (Nau'in JHS) zai iya aiki lafiya a cikin ruwa mai zurfi na dogon lokaci.
(3). Kebul ɗin wutar lantarki mai haɗakar polyethylene (XLPE) mai haɗakar wutar lantarki saboda kyawun halayensa na lantarki, na inji da na zahiri, kuma tsarin samarwa yana da sauƙi, tsarin haske, babban ƙarfin watsawa, shigarwa da kulawa ya dace, ba a iyakance shi da fa'idodi da sauran fa'idodi ba, ya zama kayan rufewa da aka fi amfani da su, amma yana da matuƙar sauƙin kamuwa da danshi, a cikin tsarin kera da aiki idan rufin yana da danshi, yana da saurin lalacewa ga "bishiyar ruwa", yana rage tsawon rayuwar kebul ɗin sosai. Saboda haka, kebul ɗin da aka haɗakar polyethylene mai haɗakar wutar lantarki, musamman kebul na matsakaicin ƙarfin lantarki da babban ƙarfin lantarki a ƙarƙashin aikin ƙarfin lantarki na AC, dole ne ya sami "tsarin toshe ruwa" lokacin amfani da shi a cikin yanayin ruwa ko yanayin danshi.
5. Bambanci tsakanin kebul mai hana ruwa shiga da kebul na yau da kullun
Bambanci tsakanin kebul masu hana ruwa da kebul na yau da kullun shine cewa ba za a iya amfani da kebul na yau da kullun a cikin ruwa ba. Kebul mai hana ruwa na JHS shima wani nau'in kebul ne mai sassauƙa na roba, rufin shine rufin roba, da kebul na roba mai hana ruwa na yau da kullun, kebul mai hana ruwa na JHS galibi ana amfani da shi, amma yana cikin ruwa ko wasu zasu ratsa ta cikin ruwa. Kebul mai hana ruwa gabaɗaya suna da tsakiya 3, yawancinsu ana amfani da su lokacin haɗa famfo, farashin kebul mai hana ruwa zai fi tsada fiye da kebul na roba mai hana ruwa, yana da wuya a bambanta ko mai hana ruwa daga bayyanar, kuna buƙatar tuntuɓar mai siyarwa don sanin matakin hana ruwa.
6. Bambance-bambancen da ke tsakanin kebul mai hana ruwa shiga da kebul mai hana ruwa shiga
Kebul mai hana ruwa shiga cikin tsarin kebul, ta amfani da tsari mai hana ruwa shiga da kayan aiki.
Kebul ɗin toshe ruwa: Gwajin yana ba da damar ruwa ya shiga cikin kebul ɗin, kuma baya ba da damar shiga zuwa tsayin da aka ƙayyade a ƙarƙashin takamaiman yanayi. Ana raba kebul ɗin toshe ruwa zuwa toshe ruwa na conductor da toshe ruwa na tsakiyar kebul.
Tsarin toshe ruwa na mai jagora: ƙara foda mai toshe ruwa da zare mai toshe ruwa yayin da ake haɗa waya ɗaya, lokacin da mai jagora ya shiga ruwa, foda mai toshe ruwa ko zare mai toshe ruwa yana faɗaɗa da ruwa don hana shigar ruwa, ba shakka, mai jagora mai ƙarfi yana da ingantaccen aikin toshe ruwa.
Tsarin toshe ruwa na tsakiyar kebul: lokacin da murfin waje ya lalace kuma ruwan ya shiga, tef ɗin toshe ruwa yana faɗaɗa. Lokacin da tef ɗin toshe ruwa ya faɗaɗa, yana samar da sashin toshe ruwa cikin sauri don hana ƙarin shiga ruwa. Ga kebul mai tsakiya uku, yana da matuƙar wahala a cimma juriyar ruwa gaba ɗaya na tsakiyar kebul, saboda gibin tsakiya na tsakiyar kebul mai tsakiya uku yana da girma kuma ba daidai ba ne, koda kuwa an cika amfani da toshe ruwa, tasirin juriyar ruwa ba shi da kyau, ana ba da shawarar a samar da kowane tsakiya bisa ga tsarin juriyar ruwa mai tsakiya ɗaya, sannan a samar da kebul.
Lokacin Saƙo: Oktoba-23-2024