Magulu Opangira Zowopsa

Kugwedezeka kwa seti ya hydro-jenereta ndikosiyana ndi makina amagetsi ambiri kumlingo wina.Kugwedezeka kwa unit ndizodziwikiratu, koma gwero la vibration nthawi zambiri limabisika.Kuphatikiza pa kugwedezeka komwe kumachitika chifukwa cha makina ozungulira kapena osasunthika, mphamvu yamagetsi ndi maginito ndi mphamvu yamagetsi yomwe imagwira pa gawo losefukira la turbine pa kugwedezeka kwa dongosolo ndi zigawo zake ziyenera kuganiziridwa. .Pali zifukwa zambiri za kugwedezeka kwa seti ya hydro-jenereta, ndipo magwero ambiri ogwedezeka amakhalapo nthawi imodzi.Amakhulupirira kuti mphamvu zosokoneza zomwe zimayambitsa kugwedezeka kwa ma unit zimachokera ku ma hydraulic, makina ndi magetsi, omwe amalumikizana ndipo nthawi zambiri amalumikizana kuti apange kugwedezeka kolumikizana.

Kugwedezeka kwakukulu kwa gawo lopangira mphamvu ya hydropower sikungawononge ogwira nawo ntchito, koma kugwedezeka kukapitilira zomwe zimaloledwa, makamaka kugwedezeka kwanthawi yayitali ndi kumveka, mtundu wamagetsi, moyo wautumiki wa unit, magwiridwe antchito a zida zothandizira ndi zida, maziko a unit ndi nyumba zozungulira, ndipo ngakhale zonse zimabweretsa kuwonongeka kwakukulu pachitetezo chotetezeka komanso chachuma cha hydropower station.

Kupanga kuwonongeka kwa seti kumatha kugawidwa m'magulu awa:

Zimatsogolera ku mapangidwe ndi kukula kwa zone kuwonongeka kwa kutopa pakati pa zitsulo ndi weld, zomwe zimatsogolera ku ming'alu, ngakhale kuwonongeka kwa fracture ndi zidutswa.

Kumasula zomangira zina za unit sikungoyambitsa kung'ambika kwa zomangira zokha, komanso kumawonjezera kugwedezeka kwa magawo olumikizira ndikufulumizitsa kuwonongeka kwawo.

Kuchuluka kwa mavalidwe ogwirizana a magawo ozungulira a unit yothamanga.Mtsinje waukulu umagwedezeka mwamphamvu, tsinde ndi kukwera kwa kutentha, zomwe zimataya kuyaka;Kugwedezeka kwa ma jenereta ndikokulirapo, onjezerani kuchuluka kwa mphete ndi burashi, onjezerani kutentha, onjezerani chitsamba, onjezerani kutentha kwa burashi.

Kuthamanga kwa vortex pulsating komwe kumapangidwa mu tailpipe kumapangitsa kuti makina osefukira azitha kuyenda bwino, kutuluka kwa unit kugwedezeka, ndi khoma la tailpipe kusweka.Pazovuta kwambiri, ntchito yonse ya tailpipe imatha kuwonongeka.

Zotsatira za turbine resonance yamadzi ndizowopsa kwambiri.Mwachitsanzo, kumveka pakati pa zida zamagulu ndi chomera kumatha kuwononga chomera chonsecho ndi mbewu mosiyanasiyana.

Kugwedezeka kwa Hydraulic ndiko kugwedezeka komwe kumachitika chifukwa cha kusokonezeka kwa mphamvu ya hydrodynamic ya gawo la hydraulic la turbine, lomwe limatchedwa hydraulic vibration.Zinthu zama hydraulic zomwe zimayambitsa kugwedezeka zimaphatikizirapo: kusakhazikika kwa hydraulic komwe kumachitika chifukwa cha kutsika kwafupipafupi kwa vortex band ya tailpipe, karman vortex system, blade vortex, kusakhazikika pakusintha, kusalinganika kwa hydraulic, cavitation cavitation, clearance jet (axial flow turbine) ndi zina zotero.

Malo otsika pafupipafupi a vortex mu tailpipe ndi mtundu wamtundu wosakhazikika wotuluka wa tailpipe ya turbine ya Francis ndi turbine yamtunda wa axial pansi pa katundu wochepa.Pamene turbine ikugwira ntchito pansi pa mawonekedwe osapangidwira, kuthamanga kwapakati nthawi zambiri kumachitika m'mphepete mwa mchira chifukwa cha chikoka cha madzi ozungulira, kukhetsa kwa vortex ndi cavitation pa malo othamanga.Makamaka pambuyo pa kutuluka kwa gulu lalikulu la vortex mu tailpipe, gulu la vortex limazungulira mu chitoliro pafupifupi pafupipafupi, zomwe zimapangitsa kuti madzi azithamanga kwambiri.Madzi akamatuluka mu chubu, kuthamanga kwamphamvu kumayambitsa kugwedezeka kwa khoma la chitoliro, wothamanga, makina owongolera madzi, volute ndi chitoliro chopondereza.

Njira zopewera ndi kuchiza:

Konzani kamangidwe ka hydraulic.Woyendetsa ndege wa Angle Runner, kapangidwe koyenera ka kugawa kwa tsamba, korona yoyenera ndi chulu chotulutsa, komanso wothamanga wokhala ndi masamba othandizira amatha kuganiziridwa ngati wothamanga wothamanga kwambiri.

Khalani kutali ndi kugwedera ntchito area.Sinthani mlingo otaya ndi kasinthasintha otaya madzi, monga kutalikitsa chulucho kukhetsa, kuonjezera liner cone gawo lalitali, kuwonjezera mchira chitoliro ngodya Angle, kuwonjezera baffle mbale ndi baffle mbale, kulamulira vortex lamba eccentricity. , ndi zina.

Pakugwira ntchito kwa chipangizocho, mpweya wabwino umachitika m'malo apano a eddy, nthawi zambiri mpweya wachilengedwe, kapena kukakamiza mpweya pakafunika.

Magulu omwe ali pamwambawa amagawidwa ndi Dingbo Power, ngati muli ndi funso lokhudza jenereta dizilo ,pls kukhudzana ndi Dingbo Power omwe mankhwala ake amaphimba Cummins, Perkins, Volvo, Yuchai, Shangchai, Deutz, Ricardo , MTU, Weichai etc.