Ma hydraulic controlled pang'onopang'ono kutseka cheke valavu butterfly ndi zida zapamwamba zowongolera mapaipi kunyumba ndi kunja. Imayikidwa makamaka pa cholowera cha turbine cha hydropower station ndipo imagwiritsidwa ntchito ngati valavu ya turbine inlet; Kapena kuikidwa m'malo osungira madzi, mphamvu yamagetsi, madzi opangira madzi ndi pompu yamadzi, m'malo mwa valve yoyendera ndi valve valve. Pogwira ntchito, valavu imagwirizana ndi injini yaikulu ya payipi, malinga ndi mfundo ya kusintha kwa hydraulic transition, ndipo kupyolera mu njira zotsegulira ndi kutseka zomwe zidakonzedweratu, zimatha kuzindikira kudulidwa kodalirika kwa payipi, kuthetsa bwino nyundo yamadzi. payipi, ndikugwira ntchito poteteza chitetezo cha mapaipi.

Mfundo yogwira ntchito

The reserved kutseka mphamvu ya heavy nyundo hydraulic control pang'onopang'ono kutseka cheke butterfly valavu ndi heavy nyundo mphamvu mphamvu, amene amagawidwa mu heavy nyundo basi kuthamanga kusunga hydraulic control pang'onopang'ono kutseka cheke gulugufe valavu (pambuyo pake amatchedwa heavy nyundo kuthamanga kusunga mtundu) ndi kutseka heavy nyundo yodziwikiratu yosunga ma hydraulic control kutseka pang'onopang'ono cheke valavu yagulugufe (pambuyo pake amatchedwa mtundu wotseka wa nyundo wolemera). Zomwe zimagwiritsidwa ntchito makamaka zimaphatikizirapo pampu ya centrifugal, mawonekedwe a pampu ya axial komanso mawonekedwe a turbine.

Mkhalidwe wogwirira ntchito wa pampu ya centrifugal yokhala ndi kutsegula kwa valve (kuphatikizapo pampu yosakanikirana ya centrifugal): yambani mpope poyamba, ndipo tsegulani valavu mutachedwetsa nthawi.

Mkhalidwe wogwira ntchito wa valve yotseguka ya axial flow pump (kuphatikizapo axial mix flow pump): tsegulani valavu ya pampu nthawi yomweyo, kapena mutsegule valavu ku ngodya inayake, ndiyeno yambani mpope.

Kugwira ntchito kwa turbine yotsegulira ma valve: choyamba tsegulani valavu yodutsa kuti muchepetse kuthamanga, kenako tsegulani valavu, kenako tsegulani turbine.

Nthawi zambiri zimafunika kutseka valavu panthawi imodzimodzi yotseka kapena kulephera kwa mphamvu pansi pazikhalidwe zosiyanasiyana zogwirira ntchito.

Mfundo yayikulu yogwiritsira ntchito electro-hydraulic ndi motere:

Mukatsegula valavu, valavu ya solenoid imabwerera kumbuyo, mpope wamafuta umayamba, ndipo mafuta a hydraulic amalowa mu silinda yamafuta kudzera mu valavu yoyendetsa ndi payipi yothamanga kwambiri kukankhira pisitoni ndikuyendetsa cholumikizira cholumikizidwa nacho kuti chikweze nyundo yolemera. tsegulani valavu. Vavu ikatsegulidwa m'malo mwake, njira yodzitetezera yokha imayamba; The motor akupitiriza kulipira accumulator. Kuthamanga kukafika pamalo okwera kwambiri, pampu yamafuta imayima. Nthawi yotsegulira valavu imatha kusinthidwa pozungulira gudumu lamanja la valavu yowongolera kuthamanga, ndipo kusintha kosinthika ndi 10 ~ 90 masekondi.

Dongosolo likatuluka ndipo kupanikizika kumatsikira pamalo otsika kwambiri, makina opopera mafuta amangoyambira ndikuyima atafika pamalo okwera kwambiri.

Mukatseka valavu, valavu ya solenoid imatembenuka, mafuta oponderezedwa mu silinda yamafuta amabwerera ku tanki yamafuta kudzera mu valve yothamanga komanso pang'onopang'ono, payipi yothamanga kwambiri ndi valavu ya solenoid, nyundo yolemera imagwera pansi, ndipo ndodo yolumikizira imayendetsa. gulugufe mbale atembenuza kutseka valavu, kuti mwamsanga kudula ambiri a madzi otaya pafupifupi 70% ya sitiroko yapita; 30% yotsiriza ya sitiroko imatsekedwa pang'onopang'ono. Ngodya yotseka mwachangu komanso pang'onopang'ono komanso nthawi yotchingira pagawo lililonse imatha kusinthidwa malinga ndi momwe payipi imagwirira ntchito kuti athetse bwino nyundo yamadzi mupaipi; Nthawi yosintha ndi 2 masekondi mpaka 25 masekondi kuti atseke mofulumira ndi masekondi 6 mpaka 90 masekondi kuti atseke pang'onopang'ono.

Potsegula ndi kutseka, valavu ikhoza kuyimitsidwa pamalo aliwonse apakati ndi batani loyimitsa. Kuyimitsa ntchito kumagwiritsidwa ntchito makamaka pakukonza zolakwika.

Pampu yapamanja imagwiritsidwa ntchito makamaka pakukonza zolakwika. Pamene palibe magetsi kapena pampu ya mafuta silingagwire ntchito bwino, kugwedeza pampu yamanja kungathenso kutsiriza kutsegula kwa valve ndi kusunga kupanikizika kwa dongosolo. Tsegulani valavu yotsekera yomwe nthawi zambiri imatsekedwa, pansi pa mphamvu ya nyundo ndi torque ya hydrodynamic, ndodo yolumikizira imayendetsa mbale yagulugufe kuti izungulire kutseka valavu.