Iyini i-valve yokulawula?
Ai-valve yokulawulaiyingxenye yokugcina yokulawula esetshenziselwa ukulawula ukugeleza koketshezi eshaneli.Angakwazi ukugeleza phezu kobubanzi obuvuleke ngokugcwele ukuze buvaleke ngokugcwele.I-valve yokulawula ifakwe i-perpendicular to flow, isilawuli singakwazi ukulungisa ukuvulwa kwe-valve kunoma yisiphi isigaba phakathi kwe-ON & OFF.
Izimo ezithinta ukukhethwa kwe-valve:
I-valve yokulawula ibalulekile ekusebenzeni kwenqubo.Akukhona nje ukuthi imininingwane ye-valve ngokwayo ibalulekile, kodwa futhi kuyadingeka ukucabangela ngokwanele ezinye izindaba ezihlobene ne-valve yokulawula ukuze isebenze njengoba kudingeka.Okulandelayo ngamaphuzu asemqoka okufanele uwakhumbule lapho ucacisa i-valve yokulawula:
1. Ukucubungula okuqondisiwe:
Kubalulekile ukuqonda kahle inqubo kuhlanganise ne-valve yokulawula.umuntu kufanele aqonde ngokwanele ukuqala kanye nokuvalwa kwenqubo ngokwayo, kuhlanganise nokuziphatha okufanele esimweni esiphuthumayo.
2. Inhloso yokusebenzisa:
I-valve yokulawula isetshenziselwa izinhloso ezahlukene, ama-valve okulawula asetshenziselwa ukulawula izinga ethangini, kukhona nama-valve alawula ukwehla kokucindezela kusuka ohlelweni lokucindezela okuphezulu kuya ohlelweni oluphansi lokucindezela.
Kunamavalvu okulawula alawula ukunqanyulwa nokukhishwa koketshezi, axube uketshezi olubili, ahlukanise ukugeleza kube izinhlangothi ezimbili, noma ashintshisane ngoketshezi.Ngakho-ke, i-valve yokulawula efaneleke kakhulu ikhethwa ngemva kokunquma izinhloso ze-valve ethile.
3. Isikhathi sokuphendula:
Isikhathi esithathwe ukuphendula i-valve yokulawula ngemva kokushintsha isignali yokukhwabanisa yisikhathi sokuphendula se-valve yokulawula.Ivalvu yokulawula ibhekana nenkathi yesikhathi efile ngaphambi kokuba isiqu sepulaki sinqobe ukungqubuzana okuvela ekupakisheni futhi siqale ukunyakaza.Kukhona nenkathi yesikhathi sokusebenza esidingekayo ukuze uhambise ibanga elidingekayo.Kuyadingeka ukucabangela umphumela walezi zici ekulawuleni nasekuphepheni kwalo lonke uhlelo.Ukuze uthole i-valve yokulawula enhle, isikhathi sokuphendula kufanele sibe sincane.
4. Izici ezithile zenqubo:
Nquma kusengaphambili ukuba khona noma ukungabikho kokuzilinganisa, ububanzi bokuhluka kwesilinganiso sokugeleza esidingekayo, isivinini sokuphendula, njll.
5. Izimo zoketshezi:
Izimo ezihlukahlukene zoketshezi zingatholakala eshidini ledatha yenqubo, futhi lezi ziba izimo eziyisisekelo zokukhethwa kwe-valve yokulawula.Okulandelayo yizimo eziyinhloko ezizosetshenziswa:
- Igama loketshezi
- Izingxenye, ukwakheka
- Izinga lokugeleza
- Ingcindezi (kuzo zombili izimbobo zokungena neziphumayo zevalvu)
- Izinga lokushisa ·
- I-Viscosity
- Ukuminyana (i-gravity ethize, isisindo samangqamuzana)
- Umfutho we-vapor
- I-degree of superheating (umhwamuko wamanzi)
6. Uketshezi, izici ezikhethekile:
Umuntu kufanele anqume ukuba khona kwezingozi ezingaba khona mayelana nemvelo yoketshezi, ukugqwala, noma udaka.
7. Rangeability:
Esimeni lapho i-valve eyodwa yokulawula ingakwazi ukunikeza ububanzi obudingekayo, ukucabangela ukusetshenziswa kwama-valve amabili noma ngaphezulu kuyadingeka.
8. Ukucindezela kokuhluka kwevalvu:
Izinga lokulahlekelwa kwengcindezi ye-valve ohlelweni lwamapayipi kuyinkinga eyinkimbinkimbi.Njengoba izinga lokucindezela kokuhluka kwe-valve lincipha ngokuqhathaniswa nokulahlekelwa kwengcindezi iyonke yalo lonke uhlelo, izici zokugeleza ezifakiwe ziyasuka ezicini zokugeleza ezingokwemvelo.Nakuba kungenakwenzeka ukwenza okuvamile, inani le-PR eliphakathi kuka-0.3 no-0.5 ngokuvamile liyakhethwa.
9. Ukucindezela kokuvala:
Inani eliphakeme kakhulu lokucindezela okuhlukile ngesikhathi sokuvala i-valve yokulawula idatha ebalulekile okufanele isetshenziswe ekukhetheni i-actuator nasekuqinisekiseni umklamo oqine ngokwanele wengxenye ngayinye yevalvu yokulawula.
Imiklamo lapho ingcindezi yokuthatha isethwe ilingana nokucindezela okukhulu kokuvala miningi, kodwa le ndlela ingase ibangele ukucaciswa okwengeziwe kwamavalvu.Ngakho-ke kuyadingeka ukucabangela izimo zokusetshenziswa zangempela lapho kunqunywa ingcindezi yokuvala.
10. Ukuvuza kwesihlalo se-valve:
Kufanele kunqunywe ngokucacile ukuthi inani lokuvuza kwesihlalo lingabekezelelwa ngesikhathi sokuvalwa kwevalvu.Kuyadingeka futhi ukwazi imvamisa lapho kwenzeka khona isimo sokuvala i-valve.
11. Ukusebenza kwevalvu:
Kunezinhlobo ezimbili eziyinhloko zokusebenza kwe-valve yokulawula:
Ukusebenza ngokuya kwesignali yokufaka i-valve:Ukuvula nokuvala isiqondiso se-valve kulungiswa ngokusho ukuthi isignali yokufaka ku-valve iyanda noma iyancipha, kodwa ukusebenza akufani neze nokusebenza okuhlulekayo.Lapho i-valve ivala ngenxa yokufakwayo okwandisiwe, lokhu kubizwa ngokuthi isenzo esiqondile.Lapho i-valve ivuleka ngenxa yokwanda kwesignali yokufaka, lokhu kubizwa ngokuthi isenzo esibuyela emuva.
Ukusebenza okuhlulekile:Ukunyakaza kokusebenza kwe-valve kusendaweni ephephile yenqubo uma kwenzeka isignali yokufaka namandla kulahleka.Umsebenzi uhlukaniswa ngokuthi “ukuvalwa komoya ukwehluleka,” “vula,” noma “khiye.”
12. Ukuvikela ukuqhuma:
Ngokusekelwe endaweni lapho i-valve ifakwe khona ivalvu yokulawula idinga isilinganiso esanele sokuvikela ukuqhuma, kokubili ugesi osetshenziswa nevalvu kufanele ube nobufakazi bokuqhuma.
13. Ukunikezwa kwamandla:
Ukunikezwa kwamandla omoya ku-actuation ye-valve kufanele kube ngokwanele futhi kubalulekile ukunikeza umoya ohlanzekile ngamanzi, uwoyela nothuli olususiwe ukuze izingxenye ezifana ne-actuator ne-positioner zisebenze ngaphandle kokwehluleka.Ngesikhathi esifanayo, umuntu kufanele anqume ingcindezi esebenzayo namandla ukuze aqinisekise amandla asebenzayo anele.
14. Imininingwane yamapayipi:
Nquma ukucaciswa kwepayipi lapho i-valve yokulawula ifakwe khona.Ukucaciswa okubalulekile kufaka phakathi ububanzi bepayipi, izindinganiso zamapayipi, ikhwalithi yezinto ezibonakalayo, uhlobo lokuxhuma kumapayipi, njalonjalo.
Isikhathi sokuthumela: Apr-06-2022