Ngaphambi kokuthi i-valve ifakwe, ukuhlolwa kwamandla e-valve kanye nokuhlolwa kokuvala i-valve kufanele kwenziwe ebhentshini lokuhlola i-valve hydraulic test.I-20% yama-valve anengcindezi ephansi kufanele ihlolwe ngokungahleliwe, futhi i-100% kufanele ihlolwe uma ingafaneleki;Ama-valve angu-100% aphakathi nendawo naphezulu kufanele ahlolwe.Imidiya esetshenziswa kakhulu ukuhlola umfutho we-valve ngamanzi, uwoyela, umoya, isitimu, i-nitrogen, njll. Izindlela zokuhlola ingcindezi yamavavu ezimboni okuhlanganisa amavalvu womoya zimi kanje:
Indlela yokuhlola ingcindezi ye-Butterfly valve
Ukuhlolwa kwamandla kwevalve uvemvane womoya kuyefana naleyo yevalvu yembulunga.Ekuhlolweni kokusebenza kokuvala i-valve ye-butterfly, indawo yokuhlola kufanele yethulwe kusukela ekugcineni kokugeleza kwe-medium, ipuleti le-butterfly kufanele livulwe, elinye ukuphela kufanele livalwe, futhi ukucindezela komjovo kufanele kufinyelele inani elishiwo;ngemva kokuhlola ukuthi akukho ukuvuza ekupakisheni nakwezinye izimpawu, vala ipuleti levemvane, vula elinye icala, futhi uhlole i-valve uvemvane.Akukho ukuvuza ku-plate seal okufanelekile.Ivalve yovemvane esetshenziselwa ukulawula ukugeleza ingase ingahlolelwa ukusebenza kokuvala.
Indlela yokuhlola ingcindezi ye-valve yokuhlola
Hlola isimo sokuhlola i-valve: i-axis ye-lift check valve disc isendaweni eqondile ukuya evundlile;i-axis yesiteshi se-valve yokuhlola i-swing kanye ne-disc axis isesimweni esicishe silingane nomugqa ovundlile.
Ngesikhathi sokuhlolwa kwamandla, indawo yokuhlola yethulwa ukusuka endaweni yokungena kuye enanini elishiwo, kanti enye iphetho ivaliwe, futhi ifaneleka ukubona ukuthi umzimba we-valve nesembozo se-valve akuvuzi.
Esivivinyweni sokuvala, indawo yokuhlola yethulwa kusukela ekugcineni kokuphuma, futhi indawo yokuvala iyahlolwa ekugcineni kokungena, futhi akukho ukuvuza ekupakisheni naku-gasket okufanelekile.
Indlela yokuhlola ingcindezi ye-valve yesango
Ukuhlolwa kwamandla kwe-valve yesango kuyefana nalokho kwe-valve yembulunga.Kunezindlela ezimbili zokuhlola ukuqina kwe-valve yesango.
①Vula isango ukuze wenze ukucindezela ku-valve kukhuphuke kunani elishiwo;bese uvala isango, ukhiphe i-valve yesango ngokushesha, uhlole ukuthi ingabe kukhona ukuvuza ezimpahleni zombili zesango, noma ujove ngokuqondile indawo yokuhlola kupulaki esembozweni se-valve enanini elishiwo, hlola izimpawu kuzo zombili. emaceleni esango.Indlela engenhla ibizwa ngokuthi i-intermediate pressure test.Le ndlela akufanele isetshenziselwe ukuhlolwa kokuvala ama-valve esango anobubanzi obuncane obungaphansi kwe-DN32mm.
②Enye indlela ukuvula isango ukwenza ukucindezela kokuhlolwa kwe-valve kukhuphuke kunani elishiwo;bese uvala isango, uvule ingxenye eyodwa yepuleti eliyimpumputhe, bese uhlola ukuthi indawo yokuvala iyavuza yini.Bese ubuyela emuva bese uphinda ukuhlolwa okungenhla kuze kube yilapho kufanelekile.
Ukuhlolwa kokuqina kokupakisha kanye ne-gasket ye-valve yesango le-pneumatic kuzokwenziwa ngaphambi kokuhlolwa kokuqina kwesango.
Indlela yokuhlola ingcindezi yevalvu yokunciphisa ingcindezi
①Ukuhlolwa kwamandla kwe-valve yokunciphisa ingcindezi ngokuvamile kuhlanganiswe ngemva kokuhlolwa kwesiqephu esisodwa, futhi kungabuye kuhlolwe ngemva kokuhlanganiswa.Ubude besikhathi sokuhlolwa kwamandla: 1min ye-DN<50mm;ngaphezu kwemizuzu emi-2 ye-DN65~150mm;ngaphezu kwemizuzu emi-3 ye-DN> 150mm.
Ngemuva kokuthi ama-bellows kanye nezingxenye zishiselwe, sebenzisa izikhathi ezingu-1.5 ukucindezela okukhulu kwe-valve yokunciphisa ingcindezi, bese uhlola amandla ngomoya.
②Ukuhlolwa kokungenisa umoya kuzokwenziwa ngokuya ngendlela yokusebenza yangempela.Uma uhlola ngomoya noma ngamanzi, hlola izikhathi ezingu-1.1 ukucindezela okujwayelekile;lapho uhlola nge-steam, sebenzisa ingcindezi yokusebenza ephezulu evunyelwe ngaphansi kwezinga lokushisa lokusebenza.Umehluko phakathi kwengcindezi yokungena kanye nengcindezi yokuphuma kuyadingeka ukuthi ungabi ngaphansi kuka-0.2MPa.Indlela yokuhlola iwukuthi: ngemva kokulungiswa kokucindezela kokungena, lungisa kancane kancane isikulufu sokulungisa se-valve, ukuze ukucindezela kokuphumayo kungashintsha ngokuzwela nangokuqhubekayo phakathi kobubanzi bamanani aphezulu kanye nobuncane, ngaphandle kokuma noma ukugxuma.Ukuze i-valve yokunciphisa umfutho we-steam, lapho ukucindezela kwe-inlet kulungiswa kude, i-valve ivaliwe ngemva kokuba i-valve ivaliwe, futhi ukucindezela kwe-outlet kungamanani aphezulu kakhulu futhi aphansi kakhulu.Ngaphakathi kwe-2min, ukunyuka kwengcindezi yokuphuma kufanele kuhlangabezane nezidingo kuThebula 4.176-22.Ngesikhathi esifanayo, ipayipi elingemuva kwevalvu kufanele libe Ivolumu ihambisana nezidingo ezikuThebula 4.18 ukuze ifaneleke;ama-valve okunciphisa umfutho wamanzi nomoya, lapho ukucindezela kwe-inlet kusethiwe futhi ingcindezi yokuphuma ingu-zero, i-valve yokunciphisa ingcindezi ivaliwe ukuhlolwa kokuqina, futhi akukho ukuvuza phakathi kwemizuzu engu-2 kufanelekile.
Indlela yokuhlola ingcindezi ye-globe valve kanye ne-throttle valve
Ukuze kuhlolwe amandla e-globe valve kanye ne-throttle valve, i-valve ehlanganisiwe ivamise ukufakwa kuhlaka lokuhlola ingcindezi, i-valve disc iyavulwa, i-medium ijovwe enani elishiwo, bese kuthi umzimba we-valve kanye nesembozo se-valve kuhlolwe ukujuluka kanye ne-valve. ukuvuza.Ukuhlolwa kwamandla nakho kungenziwa ngocezu olulodwa.Ukuhlolwa kokuqina okwe-valve yokuvala kuphela.Ngesikhathi sokuhlolwa, isiqu se-valve se-valve yembulunga 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;ngemva kokuphumelela ukuhlolwa, i-disc ye-valve ivaliwe, futhi enye iphetho ivuliwe ukuze kuhlolwe ukuthi kukhona ukuvuza.Uma ukuhlolwa kwamandla nokuqina kwe-valve kufanele kwenziwe, ukuhlolwa kwamandla kungenziwa kuqala, khona-ke ingcindezi iyancipha ibe yinani elicacisiwe lokuhlolwa kokuqina, futhi ukupakisha kanye ne-gasket kuhlolwe;khona-ke i-disc ye-valve ivaliwe, futhi isiphetho sokuphuma siyavulwa ukuze kubhekwe ukuthi indawo yokuvala uphawu iyavuza yini.
Indlela yokuhlola ingcindezi ye-valve yebhola
Ukuhlolwa kwamandla kwe-valve yebhola yomoya kufanele kwenziwe esimweni esivulekile se-valve yebhola.
①Ukuhlolwa kokuvala i-valve yebhola elintantayo: beka i-valve endaweni evuleke uhhafu, ngenisa indawo yokuhlola ekugcineni, bese uvala enye ingxenye;zungeza ibhola izikhathi eziningana, vula ukuphela okuvaliwe lapho i-valve isesimweni esivaliwe, futhi uhlole ukusebenza kokuvalwa kokupakisha kanye ne-gasket ngesikhathi esifanayo.Akufanele kube khona ukuvuza.I-test medium yethulwa ngakolunye uhlangothi bese ukuhlolwa okungenhla kuyaphindwa.
②Ukuhlolwa kokuvala kwe-valve yebhola ehleliwe: ngaphambi kokuhlolwa, zungeza ibhola izikhathi eziningana ngaphandle komthwalo, i-valve yebhola ehleliwe isesimweni esivaliwe, futhi indawo yokuhlola yethulwa kusukela ekugcineni kuya kwenani elicacisiwe;ukusebenza kokuvala isiphetho sesingeniso kuhlolwa nge-gauge ye-pressure gauge, futhi ukunemba kwe-gauge ye-pressure yi-0 .5 kuya ku-1, ububanzi buyizikhathi ezingu-1.6 zokucindezela kokuhlola.Phakathi nesikhathi esibekiwe, uma kungekho mkhuba wokucindezeleka, uyafaneleka;bese wethula indlela yokuhlola ukusuka komunye umkhawulo, bese uphinda ukuhlolwa okungenhla.Bese, faka i-valve esimweni esivulekile, vala zombili iziphetho, bese ugcwalisa i-cavity yangaphakathi nge-medium.Hlola ukupakisha kanye ne-gasket ngaphansi kwengcindezi yokuhlola, futhi akumele kube khona ukuvuza.
③I-valve yebhola enezinhlangothi ezintathu izohlolelwa ukucinana endaweni ngayinye.
Isikhathi sokuthumela: Mar-02-2022