Enqubeni yokukhiqiza nokubhobhoza kwenkundla yamakhemikhali yamalahle, i-stop valve ivame ukusetshenziswa. Nakhu ukuhlaziya inqubo nokusebenza kwayo. Namuhla, sizoqonda ndawonye.
I-Globe valve, eyaziwa nangokuthi i-valve yokusika, ingenye yama-valve asetshenziswa kakhulu. Kuyaziwa ngoba ukungqubuzana phakathi kwendawo yokubekwa uphawu kwinqubo yokuvula nokuvala kuncane, kuqinile, ukuphakama kokuvula akukukhulu, kulula ukukhiqiza, ukugcinwa okulula, hhayi kuphela okufanele ingcindezi ephansi naphakathi, kepha futhi ifanele ukuphakama ingcindezi. I-Globe valve yi-valve yokufaka uphawu ngokuphoqelelwa, ngakho-ke lapho i-valve ivaliwe, ingcindezi kufanele isetshenziswe kudiski ukuphoqa indawo yokuvala ukuthi ingavuzi.
Isimiso sokusebenza se-valve sokusika: i-valve idlala ukunqunywa kulayini wayo phakathi nendawo nendima ebalulekile ye-mpintsha, i-valve esikiwe, njengohlobo lwamavaluva ekilasi ancishiswe abaluleke kakhulu, anamandla e-torque ku-valve stem seal, i-valve stem ekuqondeni kwe-axial ekucindezelekeni kwidiski, indawo yokufaka uphawu lwe-valve nendawo yokubekwa kwesihlalo se-valve ilingana kahle, ivimbela ukuvuza kwendawo emaphakathi nezikhala phakathi kwendawo yokubekwa uphawu.
Ukufakwa uphawu kwe-valve yomhlaba kubunjwe ebusweni bokubekwa uphawu kwe-valve disc nobuso bokubekwa kwesihlalo se-valve. Isiqu sishayela idiski ye-valve ukuthi ihambe ibheke eceleni kolayini wesihlalo se-valve. Inqubo yokuvula nokuvala i-valve yomhlaba, ukuphakama kokuvula kuncane, kulula ukulungisa ukugeleza, futhi kulula ukukhiqiza nokugcina, futhi ingcindezi isebenza ezinhlotsheni eziningi.
Uma kuqhathaniswa nokukhiqizwa kwezimboni kolunye uhlobo lwe-valve esetshenziswayo esetshenzisiwe esetshenziswa kakhulu, kusukela endaweni yokubuka, i-valve yomhlaba ilula kunangaphambili, kulula ukuyenza nokuyigcina. Empilweni yensizakalo, indawo yokuvala i-valve enqunyiwe akulula ukuyigqoka nokuklwebheka, ngenkathi kuvulwa futhi kuvalwa i-valve disc ngaphandle kokuhamba ngokulingana phakathi _ kwesihlalo sokubekwa uphawu, ngaleyo ndlela kuncane ukugqokwa nokuklwebheka endaweni yokubekwa uphawu, ukuze ukwenza ngcono impilo yensizakalo yamavalvu wembulunga yesitifiketi enqubeni yokushaywa okugcwele kwediski okuncane kuncane, ukuphakama kwayo kuqhathaniswa nenye i-valve encane. Ububi be-valve yomhlaba ukuthi isikhathi sokuvula nokuvala sikhulu futhi kunzima ukubona ukuvulwa nokuvalwa okusheshayo. Ngoba isiteshi sokugeleza emzimbeni we-valve sibuhlungu futhi ukumelana nokugeleza koketshezi kukhulu, ukulahleka kwamandla oketshezi kukhulu emgqeni.
Kuma-valve womhlaba, hhayi kuphela okumele akwazi ukufaka nokugcina, kepha nokusebenza.
1, vula uphinde uvale i-valve yomhlaba, amandla kufanele azinze, hhayi umthelela. Okunye ukuvulwa nokuvalwa komthelela wezingxenye ezinkulu zeglavu ze-globe kubhekele la mandla womthelela futhi i-valve yomhlaba jikelele ayikwazi ukulingana.
2. Lapho ivalvevu yeglobhu ivuleke ngokuphelele, isondo lesandla kufanele lihlehliswe kancane, ukuze imicu iqine, ukuze kugweme ukukhululeka nokonakala.
3. Lapho ipayipi lisetshenziswa okokuqala, kuningi ukungcola kwangaphakathi, ngakho-ke i-valve enqunyiwe ingavulwa kancane, ikhukhulwe ukugeleza kwejubane eliphakathi nendawo, bese ivalwa ngobumnene (ayivaliwe ngokushesha noma ngodlame, ukuvimbela ukungcola okusele ekulimaleni indawo ebekwe uphawu), kwavulwa futhi, kwaphindwa kaningi, kwagezwa ukungcola okuhlanzekile, kwabe sekufakwa umsebenzi ojwayelekile.
4. Ngokujwayelekile uvule i-valve yomhlaba, kungahle kube khona ukungcola endaweni yokubekwa uphawu. Uma ivaliwe, le ndlela engenhla kufanele isetshenziselwe ukuyigeza ihlanzeke, bese ivalwa ngokusemthethweni.
5. Uma isondo lesibambo nesibambo konakele noma kulahlekile, kufanele kuhlonyiswe ngokushesha, futhi kungenakushintshwa isandla sepuleti elihambayo, ukuze kugweme ukulimaza isiqu se-valve ezinhlangothini ezine, nokuhluleka ukuvula nokuvala, ukuze kubangele izingozi ekukhiqizeni.
I-6, eminye imithombo yezindaba, ukupholisa ngemuva kokuvalwa kwe-valve okusikiwe, ukuze isivalo se-valve, opharetha kufanele avalwe futhi ngesikhathi esifanele, ukuze indawo yokufaka uphawu ingashiyi umthungo omncane, kungenjalo, okuphakathi ukuthungwa okuncane kwejubane elikhulu, kulula ukuguguleka kwendawo yokufaka uphawu.
7. Uma kutholakala ukuthi lo msebenzi usebenza kanzima, kufanele kuhlaziywe izizathu. Uma ukupakisha kucinene kakhulu, kungakhululeka kahle. Uma isiqu se-valve sitshekile, abasebenzi kufanele baziswe ngokulungisa. Amanye ama-valve womhlaba, esimweni esivaliwe, izingxenye zokuvala zokwanda okushisayo, okuholela ekuvulekeni kobunzima; Uma kufanele ivulwe ngalesi sikhathi, khipha intambo yebhonethi isigamu iphendukele kokunye ukukhulula ukucindezela kwesiqu, bese udonsa isondo lesandla.
Isikhathi sokuthumela: Mar-24-2021