Sei mavharuvhu ebhora achigona kuvhurwa nekuvharwa nekukurumidza?

Chikonzero neibhora mavharuvhuinogona kuwana nekukurumidza kuvhura uye kuvhara nhema mune yavo yakasarudzika mekiniki chimiro uye fluid dynamics dhizaini. Chikamu chekuvhura nekuvhara i sphere ine denderedzwa kuburikidza ne-buri, iyo inogona kufambiswa nevharuvhu hunde kuti itenderere 90 madhigirii kutenderedza axis yayo kuti ipedze shanduko yehurumende - kana buri repasi rakanangana neakisi yepombi, vharuvhu yakavhurwa zvizere; Mushure mekutenderera 90 madhigirii, iyo kuburikidza-gomba iri perpendicular kune pombi uye valve yakavharwa zvizere. Iyi "quarter turn" dhizaini inorerutsa kuvhura nekuvhara kuita kuita kutenderera mukati mendege imwe, kupfupisa nzira yekushandisa.

Kubva pakuona kwe mechanical structure, bhora rebhora vharafuinotora nzira yekuisa chisimbiso ye "line contact" kana "surface contact" nechigaro chevharuvhu. Kutora vharafu yebhora inoyangarara semuenzaniso, bhora rinofamba rakananga kuchigaro chevharuvhu yekubuda pasi pekumanikidzwa kwepakati, kuita chisimbiso chekuzvisimbisa uye kuderedza kupikisa kwekupokana panguva yekuvhura nekuvhara; Iyo yakagadziriswa bhora valve inotsigirwa nemabhengi epamusoro uye ezasi mavharuvhu stems, kuitira kuti bhora rinongoda kukunda simba diki rekupokana pakati pechigaro chevhavha uye bhora kana richitenderera. Iyi dhizaini inoita kuti denderedzwa risave nekusakanganiswa nekupikiswa kwemvura panguva yekutenderera, kunyanya yakakodzera kune yakanyanya-kudzvanywa mamiriro. Semuenzaniso, muindasitiri yepetrochemical, DN300 pneumatic bhora mavharuvhu anogona kupedzisa kuvhura nekuvhara mumasekondi 0.5, nekukurumidza zvakanyanya kupfuura mavharuvhu egedhi kana globe mavharuvhu anoda kutenderera kwakawanda.

Iyo fluid dynamics maitiro inowedzera kuwedzera kukurumidza kupindura kugona kweiyobhora vharafu. Iyo inoyerera chiteshi cheiyo yakazara bhora bhora vharafu inonyatso kuenderana nemukati dhayamita yepombi, uye pane kanenge pasina kudonhedza kudonha kana mvura inopfuura. Ikoko hakuzovi nekuwedzera kushorwa nekuda kweiyo inertia yepakati panguva yekuvhura nekuvhara. Kusiyana neizvi, diski yevhavhavhavhavhavha inogona kuvharidzira dzimwe nzira dzekuyerera panguva yekutenderera, zvichiita kuti mvura iite reverse thrust pa disc uye inokanganisa kuzarura nekuvhara nekukurumidza; Gedhi regedhi revhavha rinoda kusimudzwa uye kuderedzwa, nekurohwa kwenguva refu uye rinobatwa nyore nyore ne viscosity yepakati. Data yekuedza inoratidza kuti muDN200 mapaipi, nguva yekuvhura nekuvhara yevhavhavha yebhora ipfupi ne40% pane iyo butterfly mavharuvhu eiyo yakafanana uye 70% ipfupi pane iyo yegedhi mavharuvhu.

Mukuwedzera, nzira yekufambisa yevhavha yebhora inopawo rubatsiro rwekukurumidza kuzarura nekuvhara. Pneumatic, magetsi, kana hydraulic actuators anogona ipapo kuburitsa yakakwira torque, ichityaira sphere kuti ipedze kutenderera 90 madhigirii mukati memasekondi 0.1. Semuyenzaniso, mugasi rechisikigo chekuvharisa kwechimbichimbi, chivharo chepneumatic bhora chinogona kugura kuyerera kwemhepo mukati memasekonzi 0.3 nekugamuchira masaini emagetsi, zvinobudirira kudzivirira tsaona kubva pakuwedzera. Iyi "millisecond level" simba rekupindura harienzaniswe nemavharuvhu echinyakare.