Ukuhlolwa ngaphambi kokufakwa kwe-valve

① Hlola ngokucophelela ukuthi imodeli ye-valve nokucaciswa kuyahlangabezana yini nezidingo zomdwebo.

② Hlola ukuthi ingabe isiqu se-valve nediski ye-valve ziyaguquguquka yini ekuvulekeni, nokuthi zinamathele noma zitshekile.

③ Hlola ukuthi ivalvu yonakele yini nokuthi imicu yevalvu ecushiwe iqondile futhi iqinile.

④ Hlola ukuthi ukuxhumana phakathi kwesihlalo se-valve kuqinile, ukuxhumana phakathi kwediski ye-valve nesihlalo se-valve, isembozo se-valve kanye nomzimba we-valve, nesiqu se-valve kanye ne-valve disc.

⑤ Hlola ukuthi i-valve gasket, ukupakisha kanye nezixhumi (amabhawodi) zifanele izidingo zemvelo yendawo yokusebenza.

⑥ Amavalvu okwehlisa ingcindezi amadala noma ashiywe isikhathi eside kufanele ahlakazwe, futhi uthuli, isihlabathi kanye nezinye izibi kufanele zihlanzwe ngamanzi.

⑦ Susa ikhava yokuvala imbobo bese uhlola idigri yokuvala. I-valve disc kufanele ivalwe ngokuqinile.

Ukuhlolwa kwengcindezi ye-valve

Amavalvu anomfutho ophansi, i-medium-pressure kanye ne-high-pressure kufanele ahlolwe amandla kanye nokuhlolwa kokuqina. Ama-valve ensimbi ye-alloy kufanele futhi enze ukuhlaziywa kwe-spectral kumagobolondo ngamunye futhi abuyekeze izinto.

1. Ukuhlolwa kwamandla e-valve

Ukuhlolwa kwamandla kwe-valve ukuhlola i-valve esimweni esivulekile ukuhlola ukuvuza endaweni engaphandle ye-valve. Kuma-valve ane-PN ≤ 32MPa, ukucindezela kokuhlola izikhathi ezingu-1.5 ukucindezela okuzisholo, isikhathi sokuhlola asikho ngaphansi kwamaminithi angu-5, futhi akukho ukuvuza kugobolondo nendlala yokupakisha okufanele ifaneleke.

2. Ukuhlolwa kokuqina kwe-valve

Ukuhlolwa kwenziwa ivalvu ivalwe ngokugcwele ukuze kubhekwe ukuthi akukho yini ukuvuza endaweni yokuvala ivalvu. Ingcindezi yokuhlola, ngaphandle kwamavalvu ovemvane, amavalvu okuhlola, ama-valve aphansi kanye nama-throttle valves, ngokuvamile kufanele yenziwe ngengcindezi encane. Uma kunganqunywa Ekucindezelweni kokusebenza, ukuhlolwa kungenziwa futhi izikhathi ezingu-1.25 zokucindezela kokusebenza, futhi indawo yokuvala i-disc ye-valve izofaneleka uma ingavuzi.

Imithetho ejwayelekile yokufakwa kwe-valve

1. Ukuma kokufakwa kwevalvu akufanele kuvimbe ukusebenza, ukuqaqa kanye nokugcinwa kwempahla, amapayipi kanye nomzimba we-valve ngokwawo, futhi ukubukeka kobuhle bokuhlanganiswa kufanele kucatshangelwe.

2. Ngama-valve kumapayipi avundlile, isiqu se-valve kufanele sifakwe phezulu noma sifakwe nge-engeli. Ungayifaki i-valve isondo lesandla libheke phansi. Amavalvu, iziqu zevalvu kanye namasondo esandla kumapayipi anobude obuphakeme angafakwa ngokuvundlile, futhi iketango elime mpo ezingeni eliphansi lingasetshenziswa ukulawula ukude ukuvuleka nokuvala kwevalvu.

3. Ilungiselelo liyalingana, licocekile futhi lihle; kumavalvu kupayipi elimele, uma inqubo ivuma, isondo lesandla se-valve lifaneleka kakhulu ukuthi lisetshenziswe endaweni ephakeme yesifuba, ngokuvamile libe ngu-1.0-1.2m ukusuka phansi, futhi isiqu se-valve kufanele silandele ukufakwa kwe-Orienteation yesisebenzisi.

4. Kuma-valve emapayipini aqondile ehlangothini nehlangothi, kungcono kakhulu ukuba nomugqa omaphakathi wokuphakama okufanayo, futhi ibanga elicacile phakathi kwamasondo ezandla akufanele libe ngaphansi kuka-100mm; kuma-valve emapayipini avundlile ohlangothini necele, kufanele anyakaze ukuze kuncishiswe ibanga phakathi kwamapayipi.

5. Uma ufaka ama-valve asindayo kumaphampu amanzi, ama-heaters nezinye izinto zokusebenza, amabakaki e-valve kufanele afakwe; lapho ama-valve esebenza njalo futhi efakwe ngaphezu kwe-1.8m kude nendawo yokusebenza, kufanele kufakwe isiteji sokusebenza esingashintshi.

6. Uma kunophawu lomcibisholo emzimbeni we-valve, isiqondiso somcibisholo isiqondiso sokugeleza kwe-medium. Lapho ufaka i-valve, qiniseka ukuthi umcibisholo ukhomba ohlangothini olufanayo nokugeleza kwe-medium epayipini.

7. Uma ufaka ama-valve e-flange, qinisekisa ukuthi ubuso bokugcina bama-flanges amabili buhambisana futhi bugxile komunye nomunye, futhi ama-gaskets aphindwe kabili awavunyelwe.

8. Uma ufaka i-valve enezintambo, ukuze kube lula ukuhlakazeka, i-valve enezintambo kufanele ifakwe inyunyana. Isimo senyunyana kufanele sicabangele ukunethezeka kwesondlo. Ngokuvamile, amanzi ageleza nge-valve kuqala bese edlula kunyunyana.

Izinyathelo zokuqapha zokufakwa kwe-valve

1. Impahla yomzimba ye-valve ngokuvamile iyinsimbi esakhiwe, ephukayo futhi akufanele ishaywe izinto ezinzima.

2. Lapho uthutha i-valve, ungayiphonsi ngokungahleliwe; lapho uphakamisa noma uphakamisa i-valve, intambo kufanele iboshwe emzimbeni we-valve, futhi ivinjelwe ngokuqinile ukuyibopha ku-handwheel, isiqu se-valve kanye nomgodi we-flange bolt.

3. I-valve kufanele ifakwe endaweni ekahle kakhulu yokusebenza, ukugcinwa nokuhlolwa, futhi kuvinjelwe ngokuqinile ukuyingcwaba ngaphansi komhlaba. Ama-valve kumapayipi agqitshwe ngokuqondile noma emiseleni kufanele afakwe imithombo yokuhlola ukuze kube lula ukuvuleka, ukuvala nokulungiswa kwama-valve.

4. Qinisekisa ukuthi imicu iqinile futhi isongwe nge-hemp, amafutha omthofu noma itheyiphu ye-PTFE