Amavalvu okulawula adlala indima ebalulekile ekulawuleni ukugeleza koketshezi ezinqubweni ezihlukahlukene zezimboni, ukuqinisekisa ukunemba nokusebenza kahle. Phakathi kwezingxenye ezifaka isandla ekusebenzeni kwama-valve okulawula, isondo lesandla lesandla ligqama njengesici esilula kodwa esibalulekile. Lesi sihloko sihlola ukusebenza kwesondo lesandla lesandla kuvalvu yokulawula kanye nokubaluleka kwalo ekulawuleni inqubo.
1. Isingeniso Sokulawula Amavaluvu:
Amavalvu okulawula asetshenziswa ezinkulungwaneni zezimboni, kusukela kuwoyela negesi kuya ekukhiqizeni, lapho ukulawulwa okunembile kokugeleza koketshezi kubalulekile. Lawa mavalvu alawula izinga nevolumu yoketshezi oludlula epayipini, esabela kumasignali avela kusilawuli ukuze agcine izimo zenqubo efiselekayo. Nakuba izinhlelo zokulawula ezizenzakalelayo zivamile, ukusebenza okwenziwa ngesandla kusalokhu kuyisici esibalulekile sokunakekela, ukulinganisa, nezimo eziphuthumayo.
2. Izingxenye Zevalvu Yokulawula:
I-valve yokulawula ejwayelekile ihlanganisa umzimba we-valve, i-actuator, kanye ne-positioner. Umzimba we-valve unesibopho sokulawula ukugeleza, futhi i-actuator, enikwa amandla yimithombo yomoya, i-hydraulic, noma imithombo kagesi, ilungisa indawo ye-valve ngokusekelwe kumasiginali okulawula. I-positioner iqinisekisa ukuma kwe-valve okunembile.
3. Indima yeI-Handwhee eyenziwe ngesandlal:
Isondo lesandla elenziwa ngesandla liwumshini wokukhipha ngesandla ngesandla oxhunywe ku-actuator. Ivumela opharetha ukuthi balawule ngokuzenzakalelayo indawo ye-valve lapho kudingeka. Uma ungekho amandla noma ngesikhathi sokulungiswa, isondo lesandla liqinisekisa ukuthi opharetha bangakwazi ukulawula ngokuqondile ukuvulwa nokuvala kwe-valve.
4. I-Working Mechanism ye-Handwheel:
Isondo lesandla elenziwa ngesandla ngokuvamile lixhunywa kusiqu se-valve, esixhunywe kupulaki ye-valve ngaphakathi komzimba we-valve. Ukuphendula isondo lesandla liye njengewashi noma ngokuphambene newashi kuzungezisa isiqu, okwenza ipulaki yevalvu ihambe iye ngasesihlalweni sevalvu, ikhawulele ukugeleza, noma iqhele kuso, okuvumela uketshezi olwengeziwe ukuba ludlule. Ukunyakaza okujikelezayo kwesondo lesandla kuhunyushwa ekunyakazeni komugqa, okuthonya indawo yevalvu.
5. Imisebenzi Ephuthumayo Neyokulungisa:
Ezimeni lapho amasistimu azenzakalelayo ehluleka khona noma ngesikhathi sokulungiswa okuhleliwe, isondo lesandla lesandla liba yigugu. Ama-opharetha angasebenzisa isondo lesandla ukuze alungise kahle indawo ye-valve, aqinisekise ukuthi inqubo ihlala ilawulwa. Lokhu kusebenza kwezandla kubalulekile ekuvimbeleni ukungasebenzi kwesistimu nokugcina ukuguquguquka kokusebenza.
6. Ukucatshangelwa kokuphepha:
Idizayini yamasondo esandla enziwa ngesandla ngokuvamile ihlanganisa izici zokuvimbela ukulungiswa okungagunyaziwe noma ngephutha. Izindlela zokukhiya noma{1}}amasondo esandla asebenza ngokhiye ayizinyathelo ezivamile zokuphepha zokuqinisekisa ukuthi izisebenzi eziqeqeshiwe kuphela ezingasebenzisa ukubhala ngaphezulu mathupha.
7. Ukuhlanganiswa Nezinhlelo Ezizenzakalelayo:
Amasondo ezandla ezandla aklanyelwe ukuhlanganisa kalula namasistimu okulawula azenzakalelayo. Kumodi ezenzakalelayo, isondo lesandla lihlala limile, futhi i-actuator isabela kumasignali okulawula. Uma ishintshelwa kumodi eyenziwa ngesandla, isondo lesandla liyalawula, livumele ukulungiswa okunembile.
Isiphetho:
Emkhakheni wama-valve okulawula, i-handwheel isebenza njengethuluzi elithembekile nelibalulekile labaqhubi. Ubulula bayo buphikisana nokubaluleka kwayo, ihlinzeka ngokuhluleka{1}}indlela ephephile yokulawula mathupha phakathi nezimo eziphuthumayo noma imisebenzi yokunakekela. Njengoba izimboni ziqhubeka nokuthuthuka, isondo lesandla elenziwa ngesandla lihlala liyisici esingaphelelwa isikhathi, eliqinisekisa ukuthi amavalvu okulawula angasetshenziswa ngokunemba nangempumelelo ngaphansi kwanoma yisiphi isimo.
