Ukuhlolwa ngaphambi kokufakwa kwevalvu

① Hlola ngokucophelela ukuthi imodeli yevalvu kanye nezincazelo ziyahlangabezana yini nezidingo zokudweba.

② Hlola ukuthi isiqu sevalvu kanye nediski yevalvu kuyaguquguquka yini ekuvulekeni, nokuthi kunamathele noma kugobile.

③ Hlola ukuthi ivalvu yonakele yini nokuthi imicu yevalvu enemicu iqondile futhi ayishintshi.

④ Hlola ukuthi ukuxhumana phakathi kwesihlalo sevalvu nomzimba wevalvu kuqinile yini, ukuxhumana phakathi kwediski yevalvu nesihlalo sevalvu, isembozo sevalvu nomzimba wevalvu, kanye nesiqu sevalvu nediski yevalvu.

⑤ Hlola ukuthi i-gasket ye-valve, ukupakisha kanye nezinamathiselo (amabhawodi) ziyafaneleka yini ezidingweni zohlobo lwendawo yokusebenza.

⑥ Amavalvu okunciphisa umfutho amadala noma ashiywe isikhathi eside kufanele ahlakazwe, bese uthuli, isihlabathi kanye nodoti kumele kuhlanzwe ngamanzi.

⑦ Susa isembozo sokuvala imbobo bese uhlola izinga lokuvala. Idiski yevalvu kumele ivalwe kahle.

Ukuhlolwa kwengcindezi yevalvu

Amavalvu anomfutho ophansi, omfutho ophakathi kanye nomfutho ophezulu kumele ahlolwe amandla kanye nokuhlolwa kokuqina. Amavalvu ensimbi ye-alloy kufanele futhi enze ukuhlaziywa kwe-spectral kumagobolondo ngalinye ngalinye futhi abukeze izinto zokwakha.

1. Ukuhlolwa kwamandla evalvu

Ukuhlolwa kwamandla evalvu ukuhlola ivalvu isesimweni esivulekile ukuhlola ukuvuza ebusweni bangaphandle bevalvu. Kumavalvu ane-PN ≤ 32MPa, ingcindezi yokuhlola iphindwe ka-1.5 kunengcindezi evamile, isikhathi sokuhlola singengaphansi kwemizuzu emi-5, futhi akukho ukuvuza egobolondweni nasesithweni sokupakisha ukuze kuqinisekiswe.

2. Ukuhlolwa kokuqina kwevalvu

Ukuhlolwa kwenziwa ngevalvu ivaliwe ngokuphelele ukuhlola ukuthi kukhona yini ukuvuza ebusweni bokuvala ivalvu. Ukucindezela kokuhlola, ngaphandle kwamavalvu e-butterfly, amavalvu okuhlola, amavalvu angaphansi kanye namavalvu e-throttle, ngokuvamile kufanele kwenziwe ngokucindezela okuncane. Uma kungatholakala Engcindezini yokusebenza, ukuhlolwa kungenziwa futhi ngengcindezi yokusebenza ephindwe izikhathi ezingu-1.25, futhi ubuso bokuvala idiski yevalvu kufanele bufaneleke uma bungavuzi.

Imithetho ejwayelekile yokufaka ivalvu

1. Indawo yokufaka ivalvu akufanele ivimbele ukusebenza, ukuqaqwa kanye nokugcinwa kwemishini, amapayipi kanye nomzimba wevalvu uqobo, futhi ukubukeka kobuhle be-assembly kufanele kucatshangelwe.

2. Kuma-valve kumapayipi avundlile, isiqu se-valve kufanele sifakelwe phezulu noma sifakelwe nge-engeli. Ungafaki i-valve nesondo lesandla libheke phansi. Ama-valve, iziqu ze-valve namasondo esandla kumapayipi aphezulu angafakwa ngokuvundlile, kanti uchungechunge oluqondile olusezingeni eliphansi lungasetshenziswa ukulawula kude ukuvulwa nokuvalwa kwe-valve.

3. Ukuhlelwa kwayo kuyafana, kucocekile futhi kuhle; kuma-valve aku-standpipe, uma inqubo ivuma, isondo lesandla le-valve lifaneleka kakhulu ukusebenza ekuphakameni kwesifuba, ngokuvamile liyi-1.0-1.2m ukusuka phansi, futhi isiqu se-valve kumele silandele ukufakwa kwe-opharetha.

4. Kuma-valve asemapayipini aqonde eceleni, kungcono ukuba nokuphakama okufanayo komugqa ophakathi, futhi ibanga elicacile phakathi kwamasondo esandla akufanele libe ngaphansi kuka-100mm; kuma-valve asemapayipini aqondile eceleni, kufanele ahlelwe ukuze kuncishiswe ibanga phakathi kwamapayipi.

5. Uma kufakwa amavalvu asindayo kumaphampu amanzi, ama-heat exchanger kanye neminye imishini, kufanele kufakwe ama-valve brackets; uma amavalvu evame ukusetshenziswa futhi efakwa ibanga elingaphezu kuka-1.8m ukusuka endaweni yokusebenza, kufanele kufakwe ipulatifomu yokusebenza eqinile.

6. Uma kukhona uphawu lomcibisholo emzimbeni wevalvu, isiqondiso somcibisholo yisiqondiso sokugeleza kwe-medium. Uma ufaka ivalvu, qiniseka ukuthi umcibisholo ukhomba ohlangothini olufanayo nokugeleza kwe-medium epayipini.

7. Uma ufaka ama-valve e-flange, qiniseka ukuthi ubuso bokugcina bama-flange amabili buhambisana futhi buqondile, futhi ama-gasket amabili awavunyelwe.

8. Uma ufaka ivalvu enezintambo, ukuze kube lula ukuyihlukanisa, ivalvu enezintambo kufanele ifakwe i-union. Ukubekwa kwe-union kufanele kucabangele ukulula kokugcinwa kwayo. Ngokuvamile, amanzi ageleza nge-valve kuqala bese edlula nge-union.

Izinyathelo zokuqapha zokufakwa kwevalvu

1. Izinto zomzimba wevalvu ikakhulukazi ziyinsimbi ephonswe ngensimbi, ephuka kalula futhi akufanele ishaywe izinto ezisindayo.

2. Uma uthutha ivalvu, ungayilahli ngokungahleliwe; uma uphakamisa noma uphakamisa ivalvu, intambo kufanele iboshwe emzimbeni wevalvu, futhi akuvunyelwe ngokuphelele ukuyibopha esondweni lesandla, esiqwini sevalvu kanye nasembobeni yebhawodi yeflange.

3. Ivalvu kufanele ifakwe endaweni elula kakhulu yokusebenza, ukulungiswa kanye nokuhlolwa, futhi akuvunyelwe ngokuphelele ukuyingcwaba ngaphansi komhlaba. Amavalvu emapayipini agqitshwe ngqo noma emiseleni kufanele afakwe imithombo yokuhlola ukuze kube lula ukuvulwa, ukuvalwa kanye nokulungiswa kwamavalvu.

4. Qinisekisa ukuthi imicu ayishintshi futhi igoqwe nge-hemp, uwoyela we-lead noma i-PTFE tape