Nau'in tsotsa tsayin tashar wutar lantarki mai famfo zai yi tasiri kai tsaye kan tsarin karkatar da wutar lantarki da tsarin gidan wutar lantarki na tashar wutar lantarki, kuma buƙatu mai zurfi mai zurfi na hakowa na iya rage farashin ginin farar hula na tashar wutar lantarki; Duk da haka, zai kuma ƙara haɗarin cavitation yayin aiki na famfo, don haka daidaitattun ƙididdiga masu tasowa a lokacin farkon shigarwa na tashar wutar lantarki yana da mahimmanci. A cikin farkon aikace-aikacen injin turbine, an gano cewa cavitation mai gudu a ƙarƙashin yanayin aikin famfo ya fi tsanani fiye da na ƙarƙashin yanayin aiki na turbine. A cikin zane, an yi imani da cewa idan cavitation a karkashin famfo aiki yanayin za a iya hadu, da turbine aiki yanayin kuma za a iya saduwa.
Zaɓin tsayin tsotsa na injin turbine mai gudana yana nufin ka'idoji guda biyu:
Na farko, za a yi shi bisa ga yanayin cewa babu cavitation a ƙarƙashin yanayin aiki na famfo na ruwa; Na biyu, rabuwar ginshiƙin ruwa ba zai iya faruwa ba a cikin dukkan tsarin isar da ruwa yayin aiwatar da canji na kin amincewa da nauyin naúrar.
Gabaɗaya, ƙayyadaddun gudun yana daidai da ƙimar cavitation na mai gudu. Tare da haɓaka ƙayyadaddun ƙayyadaddun gudu, ƙididdigar cavitation na mai gudu kuma yana ƙaruwa, kuma aikin cavitation yana raguwa. Haɗe tare da empiric lissafin darajar tsotsa tsawo da kuma lissafin darajar daftarin tube injin digiri a karkashin mafi m mika mulki yanayin yanayi, da kuma la'akari da cewa a kan jigo na ceton farar hula tono kamar yadda zai yiwu, da naúrar yana da isasshen submergence zurfin don tabbatar da lafiya da kuma barga aiki na naúrar.
A submergence zurfin babban kai famfo turbine an ƙaddara bisa ga rashi cavitation na famfo turbine da kuma rashi na ruwa shafi rabuwa a cikin daftarin tube a lokacin daban-daban transients. Zurfin ruwa na turbines na famfo a cikin injinan wutar lantarki da aka yi amfani da su yana da girma sosai, don haka haɓakar shigarwa na raka'a yayi ƙasa. Tsayin tsayin manyan na'urorin da aka yi amfani da su a masana'antar wutar lantarki da aka sanya a cikin kasar Sin, irin su Xilong Pond, shine - 75m, yayin da tsayin tsotsa mafi yawan wutar lantarki tare da kan ruwa 400-500m kusan - 70 zuwa - 80m, kuma tsayin tsotsa na kan ruwa na 700m ya kai - 100m.
A yayin aiwatar da ƙin yarda da kaya na injin turbine, tasirin guduma na ruwa yana sa matsakaicin matsa lamba na sashin bututu ya ragu sosai. Tare da saurin haɓakar saurin mai gudu a yayin aiwatar da ƙin yarda da kaya, ruwa mai ƙarfi mai juyawa yana bayyana a waje da sashin fitarwa na mai gudu, yana sanya matsa lamba na sashin ƙasa fiye da matsa lamba na waje. Ko da yake matsakaicin matsa lamba na sashin har yanzu yana da girma fiye da matsa lamba na ruwa, matsa lamba na gida na iya zama ƙasa da matsa lamba na ruwa, yana haifar da rabuwar ginshiƙin ruwa. A cikin ƙididdiga na ƙididdiga na tsarin sauyawar turbin famfo, kawai za a iya ba da matsakaicin matsa lamba na kowane sashe na bututu. Sai kawai ta hanyar cikakken gwajin siminti na tsarin ƙin yarda da kaya za a iya ƙaddara raguwar matsa lamba na gida don guje wa abin da ya faru na rabuwar ginshiƙin ruwa a cikin daftarin bututu.
The submergence zurfin high kai famfo injin turbin kamata ba kawai saduwa da bukatun anti yashwa, amma kuma tabbatar da cewa daftarin tube ba shi da ruwa shafi rabuwa a lokacin daban-daban mika mulki tafiyar matakai. Super high head pump turbine yana ɗaukar zurfin zurfin nutsewa don guje wa rabuwar ginshiƙin ruwa yayin aiwatar da canji da tabbatar da amincin tsarin karkatar da ruwa da raka'a na tashar wutar lantarki. Misali, mafi ƙarancin zurfin nitsewar tashar wutar lantarki ta Geyechuan Pumped Storage Power shine - 98m, kuma mafi ƙarancin zurfin zurfin tashar wutar lantarki ta Shenliuchuan shine - 104m. Tashar wutar lantarki ta Jixi ta cikin gida tana - 85m, Dunhua - 94m, Changlongshan - 94m, Yangjiang - 100m
Don injin injin famfo guda ɗaya, mafi nisa ya karkata daga yanayin aiki mafi kyau, mafi girman ƙarfin cavitation yana wahala. A karkashin yanayin aiki na babban ɗagawa da ƙananan kwararar ruwa, yawancin layin da ke gudana suna da babban kusurwa mai kyau na harin, kuma cavitation yana da sauƙin faruwa a cikin matsanancin matsin lamba na farfajiyar tsotsa; A ƙarƙashin yanayin ƙananan ɗagawa da babban kwarara, mummunan kusurwar kai hari na saman matsa lamba yana da girma, wanda ke da sauƙin haifar da rabuwar kwararar ruwa, don haka yana haifar da yashwar cavitation na matsa lamba na ruwa. Gabaɗaya, ƙididdigar cavitation yana da girma ga tashar wutar lantarki tare da babban kewayon canjin kai, kuma ƙananan haɓakawa na shigarwa na iya biyan buƙatun cewa babu cavitation da zai faru yayin aiki a ƙaramin ɗagawa da yanayin ɗagawa. Saboda haka, idan kan ruwa ya bambanta sosai, tsayin tsotsa zai karu daidai don saduwa da sharuɗɗan. Misali, zurfin ruwa na QX shine – 66m, da MX-68m. Saboda bambancin kan ruwa na MX ya fi girma, yana da wuya a gane daidaitawa da garantin MX.
An ba da rahoton cewa, wasu masana'antun sarrafa wutar lantarkin da ake fitarwa daga waje sun sami rabuwar ginshiƙin ruwa. An gudanar da cikakken gwajin samfurin simintin gyare-gyare na tsarin jujjuyawar injin famfo mai girma na Japan a cikin masana'anta, kuma an yi nazarin abin da ya faru na rabuwar ginshiƙin ruwa a cikin zurfin don sanin haɓakar haɓakar injin injin famfo. Matsalolin da ya fi wahala ga ɗimbin wutar lantarki da aka yi amfani da su shine amincin tsarin. Wajibi ne a tabbatar da cewa hawan yanayin yanayin karkace da matsa lamba mara kyau na wutsiya suna cikin kewayon aminci a ƙarƙashin matsanancin yanayin aiki, kuma tabbatar da cewa aikin hydraulic ya kai matakin matakin farko, wanda ke da babban tasiri akan zaɓin zurfin nutsewa.
Lokacin aikawa: Nuwamba-23-2022
