Ungawacindezela kanjani ama-valve ahlukene? (II)

3. Ukunciphisa ingcindezii-valveindlela yokuhlola ingcindezi

① Ukuhlolwa kwamandla kwe-valve yokunciphisa ingcindezi ngokuvamile kuhlanganiswa ngemva kokuhlolwa okukodwa, futhi kungahlanganiswa ngemva kokuhlolwa. Ubude besikhathi sokuhlolwa kwamandla: 1min nge-DN<50mm; I-DN65 ~ 150mm ubude kune-2min; Uma i-DN inkulu kuno-150mm, yinde kunemizuzu emi-3. Ngemuva kokuthi ama-bellows ashiselwe ezingxenyeni, izikhathi ezingu-1.5 zokucindezela okukhulu ngemuva kokusetshenziswa kwe-valve yokunciphisa ingcindezi, futhi ukuhlolwa kwamandla kwenziwa ngomoya.
② Ukuhlolwa kokuqina kwenziwa ngokuya ngendlela yokusebenza yangempela. Lapho kuhlolwa ngomoya noma ngamanzi, ukuhlolwa kwenziwa izikhathi ezingu-1.1 ukucindezela okuzisholo; Lapho kuhlolwa nge-steam, kwenziwa ngokucindezela okuphezulu okuvunyelwe ukusebenza ekushiseni okusebenzayo. Umehluko phakathi kwengcindezi yokungena kanye nengcindezi yokuphuma akufanele ibe ngaphansi kuka-0.2MPa. Indlela yokuhlola imi kanje: ngemva kokulungiswa kokucindezela kwe-inlet, isikulufu sokulungisa se-valve silungiswa kancane kancane ukuze ingcindezi yokuphuma ikwazi ukuzwela futhi ishintshwe ngokuqhubekayo ngaphakathi kwebanga lenani eliphakeme nelincane, ngaphandle kokuma nokuvinjwa. Ukuze i-valve yokunciphisa umfutho we-steam, lapho ukucindezela kwe-inlet kususwa, i-valve ivaliwe bese i-valve inqunywe, futhi ukucindezela kokuphuma kuyinani eliphakeme kakhulu neliphansi kakhulu. Phakathi nemizuzu emi-2, ukwazisa kokucindezela kokuphuma kufanele kuhambisane nezinhlinzeko. Kuma-valve okunciphisa umfutho wamanzi nomoya, lapho ukucindezela kwe-inlet kulungiswa futhi ingcindezi yokuphuma inguziro, i-valve yokunciphisa ingcindezi ivaliwe ukuze kuhlolwe ukuvala uphawu, futhi akukho ukuvuza kungakapheli imizuzu emi-2 okufanelekile.

4. Butterfly valveindlela yokuhlola ingcindezi

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Ukuhlolwa kwamandla kwevalve uvemvane womoya kuyefana naleyo yevalvu yembulunga. Ukuhlolwa kokusebenza kokuvala i-valve ye-butterfly kufanele yethule indlela yokuhlola kusukela ekugcineni kokungena, ipuleti levemvane kufanele livulwe, elinye ukuphela kufanele livalwe, futhi ukucindezela komjovo kufanele kufinyelele inani elishiwo; Ngemva kokuhlola ukuthi akukho ukuvuza ekupakisheni nakwezinye izimpawu, vala ipuleti levemvane, uvule ngakolunye uhlangothi, futhi uhlole ukuthi akukho yini ukuvuza kuphawu lwepuleti levemvane. Amavalvu ovemvane asetshenziselwa ukulawula ukugeleza awenzi ukuhlolwa kokusebenza kokuvala uphawu.

5.I-valve yokuxhumaindlela yokuhlola ingcindezi
①Uma i-valve yepulaki ihlolelwa amandla, okuphakathi kwethulwa ukusuka ekugcineni, enye indlela iyavalwa, futhi ipulaki lizungeziswa liyiswe endaweni yokusebenza evuleke ngokugcwele ukuze lihlolwe, futhi umzimba wevalvu awutholakali uvuza.
② Esivivinyweni sokuvala, iqhude eliqondile kufanele ligcine ukucindezela emgodini olingana nephaseji, ukushintshanisa ipulaki endaweni evaliwe, hlola ukusuka komunye umkhawulo, bese uzungezisa ipulaki 180 ° ukuze uphinde ukuhlolwa okungenhla; I-valve yepulaki yezindlela ezintathu noma ezine kufanele igcine ingcindezi emgodini ilingana nomkhawulo owodwa wephaseji, ijikelezise ipulaki endaweni evaliwe, yethule ukucindezela okuvela ekugcineni kwe-Engeli engakwesokudla, futhi ihlole enye ekugcineni ngesikhathi esifanayo.
Ngaphambi kokuhlolwa kwe-valve yepulaki, kuvunyelwe ukusebenzisa ungqimba lwamafutha okugcoba ancibilikisiwe angena-acidic endaweni yokuvala, futhi akukho ukuvuza namaconsi amanzi anwetshiwe atholakala phakathi nesikhathi esibekiwe. Isikhathi sokuhlola se-valve yepulaki singaba sifushane, ngokuvamile sibekwe ngokuthi l ~ 3min ngokuya ngobubanzi obujwayelekile.
I-valve yepulaki yegesi kufanele ihlolwe ukuqina komoya izikhathi ezingu-1.25 zokucindezela kokusebenza.

6.I-valve ye-diaphragmindlela yokuhlola ingcindezi

Ukuhlolwa kwamandla e-valve ye-diaphragm kwethula okuphakathi kusuka kunoma yimuphi umkhawulo, kuvula idiski ye-valve, futhi ivale enye indawo. Ngemuva kokuthi ingcindezi yokuhlola ikhuphukele enanini elishiwo, iyafaneleka ukubona ukuthi umzimba we-valve nesembozo se-valve akukho ukuvuza. Bese wehlisa ingcindezi ekucindezelweni kokuhlolwa kokuqina, vala idiski ye-valve, vula enye indawo ukuze ihlolwe, akukho ukuvuza okufanelekile.

7.I-valve yokumisafuthii-throttle valveindlela yokuhlola ingcindezi
Ukuhlolwa kwamandla e-valve yembulunga kanye ne-throttle valve kuvame ukufaka i-valve ehlanganisiwe endaweni yokuhlola ingcindezi, uvule idiski ye-valve, ujove okuphakathi nenani elishiwo, futhi uhlole ukuthi umzimba we-valve nesembozo se-valve ziyajuluka futhi ziyavuza. Ukuhlolwa kwamandla nakho kungenziwa ngakunye. Ukuhlolwa kokuqina okwe-valve yokumisa kuphela. Ngesikhathi sokuhlolwa, isiqu se-valve yokumisa sisesimweni esiqondile, i-disc ye-valve ivuliwe, i-medium yethulwa kusukela ekugcineni kwe-disc ye-valve kuya enani elicacisiwe, futhi ukupakisha kanye ne-gasket kuyahlolwa. Uma usufanelekile, vala idiski ye-valve bese uvula enye indawo ukuze uhlole ukuthi akukho yini ukuvuza. Uma ukuhlolwa kwamandla e-valve nokuqina kufanele kwenziwe, ukuhlolwa kwamandla kungenziwa kuqala, bese ukucindezela kuncishiswa kunani elicacisiwe lokuhlolwa kokuqina, futhi ukupakisha kanye ne-gasket kuyahlolwa. Bese uvala i-disc ye-valve, vula i-outlet ukuze uhlole ukuthi ukuvuza kwendawo yokuvala uphawu.


Isikhathi sokuthumela: Aug-11-2023