Uma usebenzisa i-valve, kuvame ukuba nezinkinga ezithile ezicasulayo, okuhlanganisa ukuthi i-valve ingavalwa yonke indlela.Kumele ngenzeni?I-valve yokulawula inemithombo ehlukahlukene yokuvuza yangaphakathi ngenxa yohlobo lwayo lwesakhiwo se-valve esiyinkimbinkimbi.Namuhla, sizoxoxa ngezinhlobo eziyisikhombisa ezihlukene zokuvuza kwamavalvu okulawula kwangaphakathi kanye nokuhlaziywa nokulungiswa ngakunye.

1. I-valve ayivaliwe ngokugcwele futhi ukulungiselelwa kwendawo enguziro ye-actuator ayinembile.

Isixazululo:

1) Vala i-valve ngesandla (qinisekisa ukuthi ivalwe ngokuphelele);

2) Phinda uvule i-valve ngesandla, ngaphandle kokuthi amandla amancane angeke asetshenziswe ukuyijika;

3) Vula i-valve isigamu ukuphenduka ngakolunye uhlangothi;

4) Okulandelayo, shintsha umkhawulo ophezulu.

2. Ukucindezela kwe-actuator akwanele.

Ukuphonswa kwe-actuator akwanele ngenxa yokuthi i-valve iwuhlobo oluvalayo oludonsela phansi.Uma ingcindezi ingekho, kulula ukufika endaweni evalwe ngokugcwele, kodwa uma kunengcindezi, ukukhuphuka koketshezi oluya phezulu akukwazi ukubalwa, okwenza kungenzeki ukuvala ngokuphelele.

Isixazululo: buyisela i-actuator ye-high-thrust, noma shintshela ku-spool ebhalansi ukuze unciphise amandla angalingani we-medium

3. Ukuvuza kwangaphakathi okulethwe yikhwalithi yokwakhiwa kwamavalvu okulawula ugesi

Ngenxa yokuthi abakhiqizi be-valve abalawuli ngokuqinile impahla ye-valve, ubuchwepheshe bokucubungula, ubuchwepheshe bokuhlanganisa, njll. ngesikhathi senqubo yokukhiqiza, indawo yokubeka uphawu ayigxili ezingeni eliphezulu futhi amaphutha afana ne-pitting ne-trachoma awasuswanga ngokuphelele, okuholela ekuvuzeni kwangaphakathi kwe-valve. i-valve yokulawula kagesi.

Isixazululo: Sula kabusha indawo yokuvala

4. Ingxenye yokulawula yevalvu kagesi inomthelela ekuvuzeni kwangaphakathi kwevalvu.

Izindlela zokulawula imishini, okuhlanganisa ukushintshwa komkhawulo wama-valve kanye nokushintsha kwe-torque, kuyindlela evamile yokusebenzisa i-valve yokulawula kagesi.Indawo yevalvu ayilungile, intwasahlobo igugile, futhi i-coefficient yokunwetshwa kwe-thermal ayilingani ngoba lezi zakhi zokulawula zithintwa izinga lokushisa elizungezile, ukucindezela, kanye nomswakama.nezinye izimo zangaphandle, okuyizona ezinecala ngokuvuza kwangaphakathi kwevalvu yokulawula ugesi.

Isixazululo: lungisa umkhawulo.

5. Ukuvuza kwangaphakathi okulethwe yizinkinga ngokuxazulula inkinga kwevalvu yokulawula kagesi

Kuvamile ukuthi ama-valve okulawula kagesi ahluleke ukuvuleka ngemva kokuvalwa mathupha, okubangelwa izinqubo zokucubungula nokuhlanganisa.Isikhundla sesenzo sokushintshwa komkhawulo ophezulu naphansi singasetshenziswa ukulungisa ukushaywa kwe-valve yokulawula kagesi.Uma i-stroke ilungiswa encane, i-valve yokulawula kagesi ngeke ivale ngokuqinile noma ivule;uma i-stroke ilungiswa ibe nkulu, izobangela ngokweqile indlela yokuzivikela ye-torque switch;

Uma inani lesenzo le-over-torque likhuphuka, kuzoba nengozi engalimaza i-valve noma indlela yokudlulisa yokunciphisa, noma ishise injini.Ngokuvamile, ngemva kokuba i-valve yokulawula kagesi isilungisiwe, indawo ephansi yokushintsha umkhawulo womnyango kagesi isethwe ngokunyakazisa ngesandla i-valve yokulawula kagesi phansi, ilandelwe ukuyinyakazisa endaweni yokuvula, futhi umkhawulo ongaphezulu ubekwe ngesandla. unyakazisa i-valve yokulawula kagesi endaweni evuleke ngokugcwele.

Ngakho-ke, i-valve yokulawula kagesi ngeke ivinjwe ukuthi ivuleke ngemva kokuba ivalwe ngokuqinile ngesandla, okuvumela isicabha sikagesi ukuthi sivuleke futhi sivale ngokukhululekile, kodwa empeleni kuzoholela ekuvuzeni kwangaphakathi komnyango kagesi.Ngisho noma i-valve yokulawula kagesi isethwe kahle, njengoba indawo yesenzo sokushintsha umkhawulo igxilile kakhulu, okuphakathi esilawulayo kuzoqhubeka nokugeza nokugqoka i-valve ngenkathi isebenza, okuzophinda kubangele ukuvuza kwangaphakathi ekuvaleni ukuxega kwe-valve.

Isixazululo: lungisa umkhawulo.

6. I-Cavitation Ukuvuza kwangaphakathi kwe-valve yokulawula kagesi kubangelwa ukugqwala kwe-valve okulethwa ukukhetha okungalungile kohlobo.

Ukuhlukaniswa kwe-Cavitation nokucindezela kuxhunyiwe.I-Cavitation izokwenzeka uma umehluko wangempela we-pressure P we-valve uphakeme kunomehluko obalulekile we-Pc we-cavitation.Inani elibalulekile lamandla likhiqizwa ngesikhathi senqubo ye-cavitation lapho i-bubble iqhuma, enomthelela esihlalweni se-valve kanye ne-valve core.I-valve evamile isebenza ezimweni ze-cavitation izinyanga ezintathu noma ngaphansi, okusho ukuthi i-valve ihlushwa i-cavitation corrosion enzima, okuholela ekuvuzeni kwesihlalo se-valve kuze kufike ku-30% wokugeleza okulinganiselwe.Izingxenye ze-throttling zinomphumela olimazayo omkhulu.Lo monakalo awukwazi ukulungiswa.

Ngakho-ke, izidingo ezithile zobuchwepheshe zama-valve kagesi ziyahlukahluka kuye ngokusetshenziswa kwawo okuhlosiwe.Kubalulekile ukukhetha amavalvu okulawula ugesi ngobuhlakani ngokuhambisana nenqubo yohlelo.

Isixazululo: Ukuze uthuthukise inqubo, khetha i-valve enezigaba eziningi eyehlayo noma elawula imikhono.

7. Ukuvuza kwangaphakathi okubangelwa ukuwohloka okumaphakathi nokuguga kwevalvu yokulawula kagesi

Ngemuva kokuba i-valve yokulawula kagesi isilungisiwe, ngemva kokusebenza okuthile, i-valve yokulawula kagesi izovalwa ngoba i-stroke inkulu kakhulu ngenxa ye-valve cavitating, ukuguguleka okuphakathi, umgogodla we-valve kanye nesihlalo esigugile, futhi ukuguga kwezingxenye zangaphakathi.Ukwanda kokuvuza kwe-valve yokulawula kagesi kuwumphumela wezinto ezixegayo.Ukuvuza kwangaphakathi kwevalvu yokulawula kagesi kuzoba kubi kakhulu ngokuhamba kwesikhathi.

Isixazululo: lungisa i-actuator bese wenza ukunakekelwa okujwayelekile nokulinganisa.