Mumamiriro ezvinhu ekukurumidza kusimukira kweindasitiri yemagetsi emhepo yemazuva ano, kunyanya-simba remhepo pamusoro pegungwa nekunze kwemahombekombe, kutenheka kwave chimwe chezvinhu zvakakosha zvinokanganisa kuchengetedzwa kweturbine yemhepo, nguva yehupenyu, kugadzira magetsi, uye mari yekushandisa nekugadzirisa. Sezvo kureba kwe turbine hub kunoramba kuchiwedzera, kureba kweblade kunoramba kuchirebesa, uye imwe{2}}unit capacity inoramba ichikura, matambudziko akaita se wind vibration, tower resonance, blade kuzunguzika, transmission cheni vibration, uye faundesheni vibration inotarisana nematurbine emhepo panguva yekushanda zviri kuramba zvichionekwa.
Saka, nei damper yevibration ichidikanwa pakushanda kwesimba remhepo? Mhepo ine mhirizhonga, mhepo inovhuvhuta, mhepo yekuveura, uye mumvuri weshongwe inoita kuti mablades awane nguva nenguva achirovera, zvichitungamira mukubhururuka kwemablade uye oscillation, iyo inopfuudzwa kune hub, main shaft, gearbox, uye shongwe, zvichikonzera kuenderera mberi kwekudengenyeka. Impeller mass kusaenzana, main shaft misalignment, kutakura kupfeka, uye gearbox gear meshing zvinokonzeresa zvinounza makwiriro akakwirira-zvinova zvikonzero zvikuru zvekutadza kutapurirana cheni. Shongwe inhete, inochinjika ine yekutanga yakaderera{{3}kurongeka kwakaringana frequency, zvichiita kuti ive nyore kuita maungira nemaimpeller frequency frequency uye blade passage frequency. Kana resonance yaitika, iyo vibration amplitude inowedzerwa zvakanyanya, ichityisidzira kuchengetedzwa kwechimiro.
Ndedzipi njodzi dzinokonzereswa nekudengenyeka kumagetsi emhepo? Pasi pekudengenyeka kunoramba kuripo, hupenyu hwekuneta hwemagiya mabhokisi, mabhengi, shafts huru, uye mayaw masisitimu anopfupikiswa zvakanyanya, uye mwero wekutadza unowedzera zvakanyanya. Vibration inogona kukonzera shongwe flange mabhaudhi uye main furemu mabhaudhi kuti asununguke, uye mumatambudziko akaomarara, kuneta kutsemuka kunogona kuoneka mune welds. Kupfuura vibration miganho kunokonzeresa iyo huru yekudzora sisitimu kudzikisa mutoro, kumhanya kumisa, uye kuvhara kwekudzivirira, kudzikisa zvakananga kugadzirwa kwemagetsi nguva uye kubuda. Kutenheka{{3}kukonewa kunoenderana nekutadza kushanda kwemhepo kunodarika 50% yekutadza kushanda kweturbine, uye yakakwirira-kugadziriswa kwehurefu uye kushanda nekunze kwemahombekombe uye mari yekugadzirisa yakakwira zvakanyanya. -kutinhira kwenguva refu kana kuzunguzika kwakanyanya kunogona kukonzera kutsemuka kweblade, kuparara kweshongwe, kukuvadzwa kwefandesheni, uye kunyangwe tsaona dzakakomba.
Chinyorwa ichi chinosuma mashandisirwo ezvinonyorovesa zvekuzunguza pamashizha eturbine. Mablades ndiwo anonyanya kuzunguza, anonyanya kuratidza kubhururuka, kuzunguza, kupeperetswa, uye icing-inokonzeresa kuzunguzika kusingaenzaniswi. Madhamu anonyorovesa mukati, akaiswa pa20% -40% yehurefu hweblade, anoshandisa bloko, zvitubu, uye kunyorovesa chimiro kuti aenderane neruzevha rweblade, zvichinyatso kudzvanya chekutanga- uye chechipiri{6}kurongeka uye kuvhitavhita, kuderedza midzi yekubhenda kweupenyu.
Iko kushandiswa kwemadhamu ekudengenyeka kunoderedza blade vibration amplitude ne30% -60%, inoderedza kukuvara kweblade kuneta nepamusoro pe40%, inoderedza njodzi yekutsemuka kweblade uye kubvisa, uye inodzikamisa kusaenzana kukanganiswa kweicing vibration.
Indasitiri yemagetsi emhepo inowanzoshandisa vibration dampers emhando dzakasiyana-siyana uye misimboti yekushanda. Inonyanya kushandiswa mhando ndeye tuned mass damper, iyo ine mass block, chitubu, uye damper. Iyo frequency yakarongedzwa kune huru vibration frequency yemhepo turbine. Kana vibration ikaitika, iyo mass block inofamba ichienda kune imwe nzira kuti ipedze simba. Iyo ine chimiro chakavimbika, yakagadzikana mhedzisiro, uye yakakura kushandiswa.
Offshore wind turbines anoshanda munzvimbo dzakapetwa kakati wandei kupfuura maturbine ekumahombekombe. Naizvozvo, damper yevibration inofanira kusangana nepamusoro-soro yekudzivirira ngura, zvinosanganisira kupisa-dip galvanizing, 316L stainless steel, Dacromet coating, salt spray testing kwemaawa anopfuura 1000, uye kushanda kwakadzikama patembiricha kubva -40 degrees kusvika 80 degrees . Offshore gadziriso mari yakakwira zvakanyanya, zvinoda dhizaini yehupenyu hurefu. Iyo hydraulic damper inofanirawo kugadzirwa kudzivirira kubuda kwemafuta kunogona kusvibisa gungwa.
Ndeapi mabhenefiti anogona kuwanikwa nemapurazi emhepo kubva pakushandisa Vibration Damper?
Kuwedzera kugadzirwa kwemagetsi, kudedera kwakaderedzwa-kwakatanga kuganhurwa magetsi uye nguva shoma, kushanda kwakadzikama munzvimbo dzine mhepo ine mhirizhonga, uye kuwedzera kwemagetsi kwese kwe2% -8%; yakawedzera hupenyu hwezvinhu zvakakosha, nehupenyu hweblade hwakawedzera ne20% -40%, hupenyu hwegiya bhokisi hwakawedzera ne30% -50%, uye kukuvara kwekuneta kweshongwe kwakaderedzwa ne30% -60%; yakadzikira zvakanyanya mitengo yekushanda nekugadzirisa, -magadzirirwo mashoma epamusoro-soro, magiyabhokisi mashoma uye anotakura anotsiva, kuchengetedza zviuru kusvika kumakumi ezviuru zvemadhora ekuAmerica pa turbine yemhepo yekumahombekombe pagore; kunatsiridza kuchengetedzwa kweturbine kwese, kudzivirira resonance, kuwedzera kupona pasi pemadutu, kudengenyeka kwenyika, uye masaisai, uye kuderedza njodzi yekusunungura bhaudhi uye kuputika kwechimiro; ruzha rwakadzikira, nekudzikira kweaerodynamic uye ruzha rwechimiro, kusangana nekuchengetedzwa kwezvakatipoteredza zvinodiwa uye kufambisa kubvumidzwa kweprojekiti.
