Ngokuvamile, ama-valve ezimbonini awekho ngaphansi kokuhlolwa kwamandla lapho esetshenziswa, kodwa umzimba we-valve kanye nesembozo se-valve ngemva kokulungiswa noma i-valve yomzimba kanye nesembozo se-valve enomonakalo wokugqwala kufanele ihlolwe amandla. Kumavalvu okuphepha, umfutho obekiwe kanye nomfutho wesihlalo sokubuya nokunye ukuhlola kufanele kuhambisane nezinhlinzeko zemiyalelo yabo nemithethonqubo efanele. I-valve kufanele ihlolwe amandla kanye nokuvala uphawu ngemva kokufakwa. I-20% yama-valve anengcindezi ephansi ihlolwe ngokungahleliwe, futhi uma ingafaneleki, kufanele ihlolwe i-100%; ama-valve aphakathi nendawo naphezulu kufanele ahlolwe ngo-100%. Imidiya esetshenziswa kakhulu ukuhlola umfutho we-valve amanzi, uwoyela, umoya, isitimu, i-nitrogen, njll. Izindlela zokuhlola ingcindezi zamavalvu ezinhlobonhlobo zezimboni ezihlanganisa amavalvu womoya zimi kanje:

1. Indlela yokuhlola ingcindezi yamavalvu ebhola

Ukuhlolwa kwamandla ama-valve ebhola womoya kufanele kwenziwe ibhola livuleke uhhafu.

① Isivivinyo sokuvala i-valve yebhola elintantayo: beka i-valve endaweni evuleke uhhafu, ngenisa indawo yokuhlola ekugcineni, bese uvala enye ingxenye; vula ibhola izikhathi eziningana, vula ukuphela okuvaliwe lapho i-valve isesimweni esivaliwe, futhi uhlole ukusebenza kokuvala ukupakisha kanye ne-gasket ngesikhathi esifanayo. Akufanele kube khona ukuvuza. Bese wethula indlela yokuhlola ukusuka komunye umkhawulo bese uphinda ukuhlolwa okungenhla.

②Isivivinyo sokuvala i-valve yebhola elungisiwe: Ngaphambi kokuhlolwa, zungezisa ibhola izikhathi eziningana ngaphandle komthwalo, i-valve yebhola engaguquki isesimweni esivaliwe, futhi indawo yokuhlola yethulwa ukusuka ekugcineni kuya enanini elishiwo; sebenzisa i-gauge yokucindezela ukuze uhlole ukusebenza kokuvalwa kwendawo yokungena, futhi usebenzise i-gauge yokucindezela ngokunemba kwezinga le-0.5 kuya ku-1 kanye nobubanzi bezikhathi ezingu-1.5 zokucindezela kokuhlola. Ngesikhathi esibekiwe, uma kungekho ukwehla kwengcindezi, kuyafaneleka; bese wethula indlela yokuhlola ukusuka komunye umkhawulo bese uphinda isivivinyo esingenhla. Khona-ke, i-valve isesimweni esivulekile, zombili iziphetho zivaliwe, i-cavity yangaphakathi igcwele i-medium, futhi ukupakisha kanye ne-gasket kuhlolwe ngaphansi kwengcindezi yokuhlola. Akumele kube khona ukuvuza.

③Ama-valve ebhola lezindlela ezintathu kufanele ahlolelwe ukuvaleka ezindaweni ezihlukahlukene.

2. Indlela yokuhlola ingcindezi ye-valve yokuhlola

Isimo sokuhlola se-valve yokuhlola: I-axis ye-valve disc ye-valve yokuhlola i-valve isendaweni eqondile kuya evundlile; i-axis yesiteshi kanye ne-axis ye-valve disc yevalvu yokuhlola i-swing isesimweni esicishe silingane nomugqa ovundlile.

Phakathi nokuhlolwa kwamandla, i-test medium yethulwa ukusuka ekugcineni kwe-inlet kuya kunani elishiwo, futhi enye iphetho ivaliwe. Kufanelekile ukubona ukuthi akukho ukuvuza emzimbeni we-valve kanye nesembozo se-valve.

Ukuhlolwa kokuvala kwethula indawo yokuhlola kusukela ekugcineni kwe-outlet, futhi ihlola indawo yokuvala ekugcineni kokungena. Ukupakisha kanye ne-gasket kuyafaneleka uma kungekho ukuvuza.

3. Indlela yokuhlola ingcindezi ye-valve yokunciphisa ingcindezi

① Ukuhlolwa kwamandla kwe-valve yokunciphisa ingcindezi ngokuvamile kuhlanganiswa ngemva kokuhlolwa okukodwa, futhi kungahlolwa ngemva kokuhlanganiswa. Ubude besikhathi sokuhlola amandla: 1min ye-DN<50mm; ngaphezu kwe-2min ye-DN65 ~ 150mm; ngaphezu kwemizuzu emi-3 ye-DN> 150mm. Ngemuva kokuthi ama-bellows kanye nomhlangano kuhlanganiswe, ukuhlolwa kwamandla kwenziwa ngomoya izikhathi ezingu-1.5 zokucindezela okukhulu ngemuva kwe-valve yokunciphisa ingcindezi.

② Ukuhlolwa kokuvala uphawu kwenziwa ngokwendlela yokusebenza yangempela. Lapho kuhlolwa ngomoya noma ngamanzi, ukuhlolwa kwenziwa izikhathi ezingu-1.1 ukucindezela okuzisholo; lapho kuhlolwa nge-steam, ukuhlolwa kwenziwa ngengcindezi yokusebenza ephezulu evunyelwe ekushiseni okusebenzayo. Umehluko phakathi kwengcindezi yokungena kanye nengcindezi yokuphuma kuyadingeka ukuthi ungabi ngaphansi kuka-0.2MPa. Indlela yokuhlola iwukuthi: ngemva kokusetha ingcindezi yokungena, lungisa kancane kancane isikulufu sokulungisa se-valve ukuze ukucindezela kokuphumayo kungashintsha ngokuzwela nangokuqhubekayo ngaphakathi kwebanga lenani eliphakeme nelincane, futhi akumele kube khona ukumila noma ukuvinjwa. Ukuze uthole ama-valve okunciphisa umfutho we-steam, lapho ukucindezela kwe-inlet kulungiswa kude, i-valve yokuvala ngemuva kwe-valve ivaliwe, futhi ukucindezela kokuphuma kuyinani eliphakeme kakhulu neliphansi kakhulu. Phakathi nemizuzu emi-2, ukuphakama kokucindezela kwayo kwe-outlet kufanele kuhlangabezane nezidingo zeThebula 4.176-22. Ngesikhathi esifanayo, umthamo wepayipi ngemuva kwe-valve uhlangabezana nezidingo zeThebula 4.18 zabaqeqeshiwe; ama-valve okunciphisa umfutho wamanzi nomoya, lapho ukucindezela kwe-inlet kulungiswa futhi ingcindezi yokuphuma ingu-zero, i-valve yokunciphisa ingcindezi ivaliwe ukuhlolwa kokuvala uphawu, futhi akukho ukuvuza kungakapheli imizuzu emi-2 kufanelekile.

4. Indlela yokuhlola ingcindezi ye-butterfly valve

Ukuhlolwa kwamandla evalve uvemvane womoya kuyefana naleyo yevalvu yokumisa. Ukuhlolwa kokusebenza kokuvala i-valve ye-butterfly kufanele yethule indawo yokuhlola kusukela ekugcineni kokugeleza okuphakathi, ipuleti levemvane kufanele livulwe, elinye ukuphela kufanele livalwe, futhi ingcindezi kufanele ijovwe enanini elishiwo; ngemva kokuhlola ukuthi akukho ukuvuza kokupakisha nezinye izingxenye zokuvala, vala ipuleti uvemvane, uvule elinye icala, futhi uhlole ukuthi akukho yini ukuvuza engxenyeni yokuvala ipuleti uvemvane kwabafanelekayo. I-valve uvemvane esetshenziselwa ukulawula ukugeleza ayidingi ukuhlolwa ukusebenza kokuvala.

5. Indlela yokuhlola ingcindezi ye-plug valve

① Uma i-valve yepulaki ihlolelwa amandla, okuphakathi kwethulwa ukusuka ekugcineni, enye ingxenye yephaseji ivaliwe, futhi ipulaki izungeziswe ezindaweni zokusebenza ezivuleke ngokugcwele ukuze kuhlolwe. Umzimba we-valve ufanelekile uma kungatholakali ukuvuza.

② Ngesikhathi sokuhlolwa kokuvala uphawu, i-valve yepulaki eqondile kufanele igcine ingcindezi emgodini ilingana naleyo esephaseji, ijikelezise ipulaki endaweni evaliwe, ihlole ukusuka komunye umkhawulo, bese izungezisa ipulaki ngo-180 ° ukuze uphinde ukuhlolwa okungaphezulu; i-valve yepulaki yezindlela ezintathu noma ezine kufanele igcine ingcindezi emgodini ilingana naleyo esekupheleni kwephaseji, ijikelezise ipulaki endaweni evaliwe ngokushintshana, yethule ukucindezela okuvela ekugcineni kwe-engeli engakwesokudla, futhi uhlole kusukela ezinye ziphela kanyekanye.

Ngaphambi kokuhlola i-valve yepulaki, kuvunyelwe ukusebenzisa ungqimba lwamafutha okugcoba angena-acidic amancane endaweni yokuvala. Uma kungekho ukuvuza noma amaconsi amanzi akhulisiwe atholakala phakathi nesikhathi esishiwo, kuyafaneleka. Isikhathi sokuhlola se-valve yepulaki singaba sifushane, ngokuvamile sicaciswe njengemizuzu engu-1 kuya kwemi-3 ngokuya ngobubanzi obungajwayelekile.

I-valve yepulaki yegesi kufanele ihlolwe ukuqina komoya izikhathi ezingu-1.25 zokucindezela kokusebenza.

6. Indlela yokuhlola ingcindezi yamavalvu e-diaphragm Ukuhlola amandla amavalvu e-diaphragm ukwethula okuphakathi kusuka kunoma yimuphi umkhawulo, ukuvula idiski ye-valve, nokuvala enye indawo. Ngemuva kokuthi ingcindezi yokuhlola ikhuphukele enanini elishiwo, hlola ukuthi akukho yini ukuvuza emzimbeni we-valve kanye nesembozo se-valve. Bese unciphisa ukucindezela kokucindezela kokuhlolwa kokuvala, vala idiski ye-valve, uvule enye indawo ukuze ihlolwe, futhi udlule uma kungekho ukuvuza.

7. Indlela yokuhlola ingcindezi yamavalvu okumisa nama-throttle valves

Ukuze kuhlolwe amandla ama-stop valves nama-throttle valves, ama-valve ahlanganisiwe ngokuvamile afakwa endaweni yokuhlola ingcindezi, i-valve disc iyavulwa, i-medium ijovwe enani elishiwo, futhi umzimba we-valve kanye nesembozo se-valve kubhekwa ukujuluka futhi. ukuvuza. Ukuhlolwa kwamandla nakho kungenziwa ngocezu olulodwa. Ukuhlolwa kokuvala uphawu kwenziwa kuphela kuma-stop valves. Ngesikhathi sokuhlolwa, isiqu se-valve se-valve yokumisa sisesimweni esiqondile, i-disc ye-valve ivuliwe, futhi okuphakathi kwethulwa kusukela ekugcineni okuphansi kwe-valve disc kuya kunani elishiwo, futhi ukupakisha kanye ne-gasket kuhlolwa; ngemva kokuphumelela ukuhlolwa, i-disc ye-valve ivaliwe futhi enye ukuphela kuyavulwa ukuhlola ukuvuza. Uma kokubili amandla e-valve nokuhlolwa kokuvala kufanele kwenziwe, ukuhlolwa kwamandla kungenziwa kuqala, bese ukucindezela kungancishiswa kube inani elicacisiwe lokuhlolwa kokuvala, futhi ukupakisha kanye ne-gasket kungabhekwa; khona-ke idiski ye-valve ingavalwa futhi isiphetho sokuphuma singavulwa ukuze kubhekwe ukuthi indawo yokuvala uphawu iyavuza yini.