Ngokuvamile, amavalvu ezimboni awahlolwa amandla uma esetshenziswa, kodwa umzimba wevalvu kanye nesembozo sevalvu ngemva kokulungiswa noma umzimba wevalvu kanye nesembozo sevalvu esinomonakalo wokugqwala kufanele kuhlolwe amandla. Kumavalvu okuphepha, ingcindezi esethiwe kanye nengcindezi yesihlalo sokubuyisela kanye nezinye izivivinyo kufanele zihambisane nezinhlinzeko zemiyalelo yazo kanye nemithethonqubo efanele. Ivalvu kufanele ihlolwe amandla kanye nokuvalwa ngemva kokufakwa. Ama-valvu angu-20% aphansi ahlolwa ngokungahleliwe, futhi uma engafaneleki, kufanele ahlolwe ngo-100%; amavalvu aphakathi nendawo kanye nomfutho ophezulu kufanele ahlolwe ngo-100%. Imidiya evame ukusetshenziswa ekuhlolweni kwengcindezi yamavalvu amanzi, uwoyela, umoya, umusi, i-nitrogen, njll. Izindlela zokuhlola ingcindezi zamavalvu ahlukahlukene ezimboni kufaka phakathi amavalvu omoya yilezi ezilandelayo:

1. Indlela yokuhlola ingcindezi yama-ball valve

Ukuhlolwa kwamandla kwamavalvu ebhola asebenzisa umoya kufanele kwenziwe ibhola livulekile ingxenye.

① Ukuhlolwa kokuvala ivalvu yebhola elintantayo: beka ivalvu esimweni sokuvuleka kancane, faka indawo yokuhlola ekugcineni, bese uvala okunye; phendula ibhola izikhathi eziningana, vula ukuphela okuvaliwe lapho ivalvu isesimweni sokuvala, bese uhlola ukusebenza kokuvala kwepakethe kanye ne-gasket ngesikhathi esifanayo. Akufanele kube nokuvuza. Bese ufaka indawo yokuhlola kusukela komunye umkhawulo bese uphinda ukuhlolwa okungenhla.

②Ukuhlolwa kokuvala ivalvu yebhola okuhleliwe: Ngaphambi kokuhlolwa, zungezisa ibhola izikhathi eziningana ngaphandle komthwalo, ivalvu yebhola ehleliwe isesimweni sokuvalwa, futhi indawo yokuhlola yethulwa kusukela kolunye uhlangothi kuya enanini elicacisiwe; sebenzisa igeyiji yokucindezela ukuhlola ukusebenza kokuvala kokuphela kokungena, bese usebenzisa igeyiji yokucindezela enokunemba kwezinga elingu-0.5 kuya ku-1 kanye nobubanzi obuphindwe ka-1.5 kokucindezela kokuhlola. Phakathi nesikhathi esicacisiwe, uma kungekho ukwehla kokucindezela, kuyafaneleka; bese wethula indawo yokuhlola kusukela kolunye uhlangothi bese uphinda ukuhlolwa okungenhla. Ngemuva kwalokho, ivalvu isesimweni sokuvuleka kwesigamu, zombili iziphetho zivaliwe, umgodi wangaphakathi ugcwele indawo, futhi ukupakisha kanye ne-gasket kuhlolwa ngaphansi kokucindezela kokuhlola. Akufanele kube khona ukuvuza.

③Amavalvu ebhola anezindlela ezintathu kufanele ahlolwe ukuthi ayavalwa yini ezindaweni ezahlukene.

2. Indlela yokuhlola ingcindezi ye-check valve

Isimo sokuhlola se-valve yokuhlola: I-axis yediski ye-valve ye-valve yokuhlola ephakamisayo isendaweni eqondile neqondile; i-axis yesiteshi kanye ne-axis yediski ye-valve ye-valve yokuhlola ejikayo kusendaweni ecishe ifane nomugqa ovundlile.

Ngesikhathi sokuhlolwa kwamandla, indawo yokuhlola ifakwa kusukela ekugcineni kokungena kuya enanini elicacisiwe, bese kuthi enye ingxenye ivalwe. Kuyafaneleka ukubona ukuthi akukho ukuvuza emzimbeni wevalvu kanye nesembozo sevalvu.

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

3. Indlela yokuhlola ingcindezi yevalvu yokunciphisa ingcindezi

① Ukuhlolwa kwamandla kwevalvu yokunciphisa ingcindezi ngokuvamile kuhlanganiswa ngemva kokuhlolwa okukodwa, futhi kungahlolwa ngemva kokuhlanganiswa. Ubude bokuhlolwa kwamandla: umzuzu o-1 we-DN<50mm; ngaphezu kwemizuzu emi-2 ye-DN65~150mm; ngaphezu kwemizuzu emi-3 ye-DN>150mm. Ngemva kokuba izimbobo kanye nokuhlanganiswa kuhlanganisiwe, ukuhlolwa kwamandla kwenziwa ngomoya ngokuphindwe ka-1.5 kunokucindezela okuphezulu ngemva kwevalvu yokunciphisa ingcindezi.

② Ukuhlolwa kokuvala kwenziwa ngokwendlela yokusebenza yangempela. Uma kuhlolwa ngomoya noma ngamanzi, ukuhlolwa kwenziwa ngokuphindwe ka-1.1 kwengcindezi evamile; uma kuhlolwa ngomusi, ukuhlolwa kwenziwa ngengcindezi yokusebenza ephezulu evunyelwe ekushiseni okusebenzayo. Umehluko phakathi kwengcindezi yokungena kanye nengcindezi yokukhipha kudingeka ube ngaphansi kuka-0.2MPa. Indlela yokuhlola yile: ngemva kokuba ingcindezi yokungena isethiwe, lungisa kancane kancane isikulufu sokulungisa sevalvu ukuze ingcindezi yokukhipha ikwazi ukushintsha ngokuzwela nangokuqhubekayo ngaphakathi kobubanzi benani eliphakeme nelincane, futhi akumele kube nokuma noma ukuvimba. Kumavalvu okunciphisa ingcindezi yomusi, lapho ingcindezi yokungena ilungiswa, ivalvu yokuvala ngemuva kwevalvu ivaliwe, futhi ingcindezi yokukhipha iyinani eliphakeme neliphansi kakhulu. Phakathi nemizuzu emi-2, ukunyuka kwengcindezi yayo yokukhipha kufanele kuhlangabezane nezidingo zeThebula 4.176-22. Ngesikhathi esifanayo, ivolumu yepayipi ngemuva kwevalvu ihlangabezana nezidingo zeThebula 4.18 zalabo abafanelekayo; Kuma-valve okunciphisa umfutho wamanzi nomoya, lapho umfutho wokungena ulungiswa futhi umfutho wokuphuma ungaphansi kuka-zero, i-valve yokunciphisa umfutho ivaliwe ukuze kuvalwe, futhi akukho ukuvuza okuvumelekile kungakapheli imizuzu emi-2.

4. Indlela yokuhlola ingcindezi ye-butterfly valve

Ukuhlolwa kwamandla evalvu yebhabhathane ephefumulayo kufana nokwevalvu yokuma. Ukuhlolwa kokusebenza kokuvala kwevalvu yebhabhathane kufanele kwethule indawo yokuhlola kusukela ekugcineni kokugeleza okuphakathi, ipuleti lebhabhathane kufanele livulwe, elinye icala kufanele livalwe, futhi ingcindezi kufanele ifakwe enanini elicacisiwe; ngemva kokuhlola ukuthi akukho ukuvuza epaketheni nakwezinye izingxenye zokuvala, vala ipuleti lebhabhathane, uvule elinye icala, bese uhlola ukuthi akukho ukuvuza engxenyeni yokuvala yepuleti lebhabhathane ukuze uthole abafanelekayo. Ivalvu yebhabhathane esetshenziselwa ukulawula ukugeleza ayidingi ukuhlolwa ukusebenza kokuvala.

5. Indlela yokuhlola ingcindezi ye-plug valve

① Uma ivalvu yepulaki ihlolwa amandla, i-medium ifakwa kusukela kolunye uhlangothi, ingxenye esele yendlela ivaliwe, bese ipulaki ijikeleziswa ezindaweni zokusebenza ezivulekile ngokuphelele ukuze ihlolwe. Umzimba wevalvu uyafaneleka uma kungatholakali ukuvuza.

② Ngesikhathi sokuhlolwa kokuvala, ivalvu yepulaki eqondile kufanele igcine ingcindezi engaphakathi kwesikhala ilingana naleyo engaphakathi kwesikhala, ijikelezise ipulaki iye endaweni evaliwe, ihlole kusukela komunye umkhawulo, bese ijikelezisa ipulaki ngo-180° ukuze iphinde isivivinyo esingenhla; ivalvu yepulaki enezindlela ezintathu noma ezine kufanele igcine ingcindezi engaphakathi kwesikhala ilingana naleyo esekupheleni kwesikhala, ijikelezise ipulaki iye endaweni evaliwe ngokulandelana, ingenise ingcindezi evela ekugcineni kwe-engeli yesokudla, bese ihlola kusukela kwezinye izinhlangothi ngesikhathi esifanayo.

Ngaphambi kokuhlola i-valve yepulaki, kuvunyelwe ukufaka ungqimba lwamafutha amancane okugcoba angena-asidi endaweni yokuvala. Uma kungatholakali ukuvuza noma amaconsi amanzi akhulisiwe ngaphakathi kwesikhathi esibekiwe, kuyafaneleka. Isikhathi sokuhlola se-valve yepulaki singaba sifushane, ngokuvamile sichazwe njengemizuzu eyi-1 kuya kwemi-3 ngokuya ngobubanzi obujwayelekile.

I-valve yepulagi yegesi kufanele ihlolwe ukuthi umoya uqinile kangakanani ngokuphindwe ka-1.25 kunengcindezi yokusebenza.

6. Indlela yokuhlola ingcindezi yamavalvu e-diaphragm Ukuhlolwa kwamandla kwamavalvu e-diaphragm ukwethula i-medium kusuka kunoma iyiphi ingxenye, ukuvula idiski yevalvu, bese uvala enye ingxenye. Ngemva kokuba ingcindezi yokuhlola ikhuphukele enanini elibekiwe, hlola ukuthi akukho yini ukuvuza emzimbeni wevalvu kanye nesembozo sevalvu. Bese wehlisa ingcindezi iye ekucindezelweni kokuhlola kokuvala, uvale idiski yevalvu, uvule enye ingxenye ukuze kuhlolwe, bese udlula uma kungekho ukuvuza.

7. Indlela yokuhlola ingcindezi yama-valve okumisa kanye nama-valve okuphusha

Ukuze kuvivinywe amandla ama-valve okumisa kanye nama-valve okuphusha, ama-valve ahlanganisiwe avame ukufakwa ku-rack yokuhlola ingcindezi, i-valve disc iyavulwa, i-medium ifakwa enanini elicacisiwe, futhi umzimba we-valve kanye nesembozo se-valve kuyahlolwa ukuthi akunajuluka yini futhi kuyavuza. Ukuhlolwa kwamandla kungenziwa futhi entweni eyodwa. Ukuhlolwa kokuvala kwenziwa kuphela kuma-valve okumisa. Ngesikhathi sokuhlolwa, isiqu se-valve se-stop valve sisesimweni esiqondile, i-valve disc iyavulwa, futhi i-medium yethulwa kusukela ekugcineni kwe-valve disc kuya enanini elicacisiwe, futhi ukupakisha kanye ne-gasket kuyahlolwa; ngemva kokudlula esivivinyweni, i-valve disc iyavalwa futhi olunye uhlangothi luyavulwa ukuze kuhlolwe ukuthi akunavuza. Uma kuzokwenziwa kokubili ukuhlolwa kwamandla e-valve kanye nokuvala, ukuhlolwa kwamandla kungenziwa kuqala, bese ingcindezi ingancishiswa ibe inani elicacisiwe lokuhlolwa kokuvala, futhi ukupakisha kanye ne-gasket kungahlolwa; bese i-valve disc ingavalwa futhi i-outlet end ingavulwa ukuze kuhlolwe ukuthi indawo yokuvala iyavuza yini.