Ingcindezi inani lamandla asetshenziswayo abheke phezulu endaweni yeyunithi, ngeyunithi ngayinye. Leyo,P = F/A, okuvela kuyo ukuthi indawo encane yokucindezeleka noma amandla anamandla aqinisa ingcindezi esetshenzisiwe. Uketshezi/Uketshezi kanye negesi nakho kungafaka ingcindezi kanye nendawo eqinile.
Ingcindezi ye-Hydrostatic ifakwa uketshezi ngesikhathi sokulingana endaweni ethile ngenxa yamandla adonsela phansi. Inani lomfutho we-hydraulic alihambisani nosayizi wendawo yokuxhumana kodwa ukujula koketshezi okungavezwa ngesibaloP = rgh. Kuyindlela evamile yokusebenzisa isimiso seingcindezi ye-hydrostaticukukala izinga loketshezi. Uma nje ukuminyana koketshezi esitsheni esivalekile kwaziwa, inzwa engaphansi kwamanzi inganikeza ukuphakama kwekholomu yoketshezi ngokusekelwe ekufundweni kwengcindezi ephawuliwe.
Isisindo somoya osemkhathini wembulunga yethu sikhulu futhi sicindezela kancane kancane endaweni ephansi. Kungenxa yokuba khona kokucindezela komkhathi lapho ukucindezela kokulinganisa kwenqubo kuhlukaniswa ngezinhlobo ezahlukene.
Amayunithi okucindezela ayahlukahluka ngokusekelwe emithonjeni ehlukene yokucindezela namayunithi wenani elibonakalayo elifanele:
I-Pascal - Iyunithi ye-SI yokucindezela, emele i-newton/㎡, lapho i-newton iyiyunithi ye-SI yamandla. Inani le-Pa eyodwa lincane kakhulu, kangangokuthi ekusebenzeni i-kPa ne-MPa zisetshenziswa kakhulu.
I-Atm - Inani lokucindezela komkhathi okujwayelekile, lilingana no-101.325kPa. Umfutho wangempela womkhathi wendawo ushintshashintsha cishe ku-1atm kuye ngokuphakama kanye nezimo zezulu.
Ibha - Iyunithi ye-Metric yokucindezela. Ibha engu-1 ilingana no-0.1MPa, ingaphansi kancane kune-atm. 1 mabr = 0.1kPa. Kulula ukuguqula iyunithi phakathi kwePascal nebha.
I-Psi - Amaphawundi ngeyintshi yesikwele, iyunithi yokucindezela ye-avoirdupois esetshenziswa kakhulu i-USA. 1psi = 6.895kPa.
Amayintshi amanzi - Kuchazwa njengengcindezi ekhishwa ngaphansi kwekholomu yamanzi eyiyintshi engu-1. 1 inH2O = 249Pa.
Amamitha amanzi - mH2O iyunithi evamile yeisidluliseli sezinga lamanzi sohlobo lokucwiliswa.
Amayunithi Ahlukene Wokucindezela Okuboniswayo ( kPa/MPa/bar)
Izinhlobo Zokucindezela
☆Ingcindezi yegeji: Uhlobo oluvame kakhulu lokulinganisa ingcindezi yenqubo ngokusekelwe kungcindezi yangempela yomkhathi. Uma kungekho ukucindezela okungeziwe ngaphandle kwevelu yomoya ozungezile, ukucindezela kwegeji kunguziro. Iba yingcindezi engeyinhle uma uphawu lokufunda lususwa, inani layo eliphelele lingeke lidlule ukucindezela komkhathi wendawo cishe ku-101kPa.
☆Ingcindezi evaliwe: Ingcindezi evaleleke ngaphakathi kwe-sensor diaphragm esebenzisa ingcindezi ye-atmosphere njengephoyinti lereferensi eliyisisekelo. Kungase futhi kube kuhle noma kube kubi, i-aka overpressure kanye ne-vacuum eyingxenye ngokulandelanayo.
☆Ingcindezi ephelele: Ingcindezi esekelwe ku-vacuum ephelele lapho yonke into ingenalutho, okungenzeka ukuthi ingafinyelelwa ngokuphelele ngaphansi kwanoma yiziphi izimo ezivamile eMhlabeni kodwa ingaba seduze kakhulu. Ingcindezi ephelele inguziro(vacuum) noma iphozithivu futhi ngeke ibe negethivu.
☆Umehluko wokucindezela: Umehluko phakathi kwezingcindezi zokulinganisa amachweba. Umehluko uhle kakhulu ngoba izimbobo zokucindezela okuphezulu nokuphansi ngokuvamile zinqunywa kusengaphambili ngokuvumelana nomklamo wesistimu yenqubo. Ukucindezela okuhlukile kungasetshenziswa ukulinganisa izinga leziqukathi ezivaliwe futhi njengosizo kwezinye izinhlobo zamamitha okugeleza.
ShanghaiWangYuan, uchwepheshe wokulawula inqubo ngaphezu kweminyaka engu-20 wenza amathuluzi okulinganisa ingcindezi amukela zonke izinhlobo zezimfuno ezenziwe ngokwezifiso kumayunithi nezinhlobo zengcindezi. Yonke imikhiqizo ilinganiswe ngokugcwele futhi ihlolwe ngaphambi kokuphuma embonini. Amamodeli anenkomba ebalulekile angalungisa iyunithi ebonisiwe mathupha. Sicela uzizwe ukhululekile ukusithinta ngezidingo zakho nemibuzo.
Isikhathi sokuthumela: Jun-11-2024