Ngokwezinga elithile, i-valve yembulunga kanye ne-valve yesango kungashiwo ukuthi kunokuxhumana okuningi. Kungashiwo yini ukuthi i-valve yembulunga kanye ne-valve yesango ingaxutshwa ngempela? I-Shanghai Dongbao Valve Manufacturing Co., Ltd. ilapha ukuze ikuphendulele lo mbuzo.

1. Isakhiwo
Uma isikhala sokufaka sikhawulelwe, sicela unake okukhethiwe:
Ii-valve yesangoingavalwa ngokuqinile ngendawo yokuvala ngokuya ngengcindezi ephakathi, ukuze kuzuzwe umphumela wokungavuzi. Lapho uvula futhi uvala, i-valve core kanye nendawo yokuvala isihlalo se-valve zihlala zithintana futhi zikhuhlana komunye nomunye, ngakho indawo yokuvala kulula ukuyigqoka. Lapho i-valve yesango isiseduze nokuvalwa, umehluko wengcindezi phakathi kwengaphambili nengemuva lepayipi mkhulu, okwenza indawo yokuvala igqoke ibe bucayi kakhulu.
Isakhiwo se-valve yesango sizoba yinkimbinkimbi kakhulu kune-valve yokuvala. Ngokombono wokubukeka, i-valve yesango yinde kune-valve yokuvala futhi i-valve yokuvala yinde kune-valve yesango esimweni esifanayo. Ngaphezu kwalokho, i-valve yesango ingahlukaniswa ibe yinduku ekhanyayo nenduku emnyama. I-valve yokuvala ayifuni.
2. Isimiso sokusebenza
Lapho i-valve yokuvala ivuliwe futhi ivaliwe, isiqu siyaphakama, okusho ukuthi, lapho isondo lesandla liguqulwa, isondo lesandla lizojikeleza futhi liphakamise kanye nesiqu. I-valve yesango izungeza isondo lesandla ukwenza isiqu se-valve siye phezulu naphansi, futhi ukuma kwesondo lesandla kuhlala kungashintshiwe.
Izinga lokugeleza lihlukile, i-valve yesango iyadingeka ukuthi ivuleke ngokugcwele noma ivalwe ngokugcwele, kodwa i-valve yokumisa ayidingeki. I-valve yokuvala inezikhombisi-ndlela zokungena neziphumayo, futhi i-valve yesango ayinazo izidingo zokungena nokuphumayo.
Ngaphezu kwalokho, i-valve yesango inezifunda ezimbili kuphela: ivulekile ngokugcwele noma ivaliwe ngokugcwele, isango lokuvula nokuvala i-stroke inkulu, futhi isikhathi sokuvula nokuvala side. Ukunyakaza kwe-valve plate ye-valve yokuvala kuncane kakhulu, futhi i-valve plate ye-valve yokuvala ingamiswa endaweni ethile ngesikhathi sokunyakaza kokulungiswa kokugeleza. I-valve yesango ingasetshenziselwa ukusika kuphela, futhi ayinayo eminye imisebenzi.
3. Umehluko wokusebenza
I-valve yokuvala ingasetshenziselwa ukusika nokulungisa ukugeleza. Ukumelana noketshezi lwe-valve yembulunga kukhulu uma kuqhathaniswa, futhi kuba nzima kakhulu ukuvula nokuvala, kodwa ngenxa yokuthi ibanga phakathi kwepuleti le-valve nendawo yokuvala lifushane, ukuvuleka nokuvala kufushane.
Ngoba ii-valve yesangoingavulwa ngokugcwele futhi ivalwe ngokugcwele, lapho ivuliwe ngokugcwele, ukumelana nokugeleza okuphakathi esiteshini somzimba we-valve cishe ku-zero, ngakho-ke ukuvulwa nokuvalwa kwe-valve yesango kuzosindisa kakhulu umsebenzi, kodwa isango likude. kusukela endaweni yokuvala futhi isikhathi sokuvula nokuvala side. .
4. Ukufakwa nokugeleza
Umphumela we-valve yesango kuzo zombili izinkomba uyafana. Asikho isidingo sezikhombisi-ndlela ze-inlet ne-outlet zokufakwa, futhi okuphakathi kungazungeza kuzo zombili izinkomba. I-valve yokuvala idinga ukufakwa ngokuhambisana ngokuqinile nesiqondiso sophawu lomcibisholo emzimbeni we-valve. Kukhona futhi umgomo ocacile mayelana nesiqondiso se-inlet kanye ne-outlet ye-valve yokuvala. ivalvu yezwe lami “i-Sanhua” ibeka ukuthi indlela yokugeleza kwevalvu yokuvala kufanele isuke phezulu iye phansi.
I-valve yokuvala iphansi futhi iphuma phezulu. Ngaphandle, kusobala ukuthi ipayipi alikho emgqeni ovundlile wesigaba esisodwa. Indlela yokugeleza kwevalvu yesango ikumugqa ovundlile. I-stroke ye-valve yesango inkulu kunaleyo ye-valve yokumisa.
Ngokombono wokumelana nokugeleza, ukumelana nokugeleza kwe-valve yesango kuncane uma kuvuliwe ngokugcwele, futhi ukumelana nokugeleza kwe-valve yokumisa umthwalo kukhulu. I-coefficient yokumelana nokugeleza kwe-valve yesango evamile imayelana no-0.08 ~ 0.12, amandla okuvula nokuvala mancane, futhi okuphakathi kungageleza ngezindlela ezimbili.
Ukumelana nokugeleza kwama-valve ajwayelekile okuvala izikhathi ezi-3-5 kunama-valve esango. Lapho uvula futhi uvala, kudinga ukuphoqeleka ukuvala ukuze kuzuzwe uphawu. I-valve core ye-valve yokumisa ayixhumani nendawo yokuvala lapho ivalwe ngokuphelele, ngakho-ke ukugqoka kwendawo yokuvala kuncane kakhulu. I-valve yokumisa edinga ukwengeza i-actuator ngenxa yamandla amakhulu okugeleza kufanele inake Ukulungiswa kwendlela yokulawula ithoshi.
Lapho i-valve yokuvala ifakiwe, i-medium ingangena isuka ngaphansi kwe-valve core futhi ingene kusuka phezulu ngezindlela ezimbili.
Inzuzo yokungena okuphakathi kusuka ngaphansi kwe-valve core ukuthi ukupakisha akukho ngaphansi kwengcindezi lapho i-valve ivaliwe, engandisa impilo yesevisi yokupakisha, futhi ingathatha indawo yokupakisha lapho ipayipi phambi kwe-valve ingaphansi. ingcindezi.
Okubi kokungena okuphakathi kusuka phansi kwe-valve core ukuthi i-torque yokushayela ye-valve inkulu ngokuqhathaniswa, cishe izikhathi ezingu-1.05 ~ 1.08 zalokhu kungena okungenhla, isiqu se-valve singaphansi kwamandla amakhulu e-axial, futhi isiqu se-valve kulula ukugoba.
Ngalesi sizathu, indlela okungena ngayo okuphakathi kusuka ngezansi ngokuvamile ifaneleka kuphela ama-valve okumisa ama-diameter amancane (ngezansi kwe-DN50). Kumavalvu okumisa ngaphezulu kwe-DN200, okuphakathi kungena kusuka phezulu. I-valve yokuvala kagesi ngokuvamile ithatha indlela okuphakathi nendawo engena ngayo ukusuka phezulu.
Ububi bendlela i-medium engena ngayo isuka phezulu iphambene nje nendlela engena ngaphansi. Eqinisweni, ingageleza kuzo zombili izinkomba, icubungula nje imibono ehlukene.
5. Faka uphawu
Ubuso obuvaliwe bomhlabai-valveiyingxenye encane ye-trapezoidal ye-valve core (bheka ukuma kwe-valve core ukuze uthole imininingwane). Uma i-valve core iwa, ilingana nokuvala i-valve (uma umehluko wengcindezi mkhulu, yiqiniso ukuthi ukuvala akuqinile, kodwa umphumela wokuphikisa awukubi). I-valve yesango ivalwe eceleni kwepuleti lesango eliwumgogodla we-valve, umphumela wokuvala awumuhle njenge-valve yokumisa, futhi i-valve core ngeke ivalwe njenge-valve yokumisa lapho i-valve core iwa.