Ufakelo lwempompo yekhemikhali kunye nokusetyenziswa kolumkeleko lwamanqaku aphambili ofakelo kunye nokusetyenziswa kweevalvu zempompo yeekhemikhali
Impompo yemichiza lishishini lemichiza lokusebenzisa ezona mveliso zibalaseleyo, kukho iintlobo ezininzi zempompo yeekhemikhali ze-centrifugal ngokwezinto ezihlulwe zibe yi-polypropylene, iplastiki yefluorine, intsimbi engenasici, ngokwesakhiwo somzimba wempompo yahlulwe ngohlobo loqhagamshelo oluthe ngqo, i-joint shaft. uhlobo, ngokuthe nkqo, ngokuthe tye eziliqela, ngokweemfuno zokwenyani zingabhekisa ekukhetheni iimveliso ezifanelekileyo. Impompo kukuqaliswa kweteknoloji yangaphandle ephuhliswe yinkampani yethu inokuthutha equlethe amasuntswana aqinileyo, i-crystallization elula ye-medium, ukumelana nobushushu, ukuxhathisa ukubola, akukho ukuvaleka.
Inkqubo yokuhlohla:
I-1, ngokweenkcukacha ezisisiseko ukwenza umsebenzi omhle wekhonkrithi, kunye nokungcwaba isiseko se-screw yepompo yemichiza.
2. Qwalasela impompo yeekhemikhali kunye nemoto phambi kokufakwa. Ilungu ngalinye kufuneka libe kwimeko entle, kwaye kungabikho mdaka ngaphakathi kwimpompo yemichiza.
I-3, impompo yeekhemikhali ngokubanzi ukuya kwisiseko, ezantsi kunye nesiseko esiphakathi kwebhloko ye-shock absorber block, ngokumalunga nokulungelelaniswa kwebhloko ye-shock absorber, fumana inqanaba elihle lepompo yekhemikhali. Emva kokulungelelaniswa, qinisa izikrufu ze-anchor.
I-4, ixabiso lokungenisa kunye nokuthumela ngaphandle kombhobho wempompo yeekhemikhali kufuneka ibe nesakhelo senkxaso, ayikwazi ukusebenzisa impompo yeekhemikhali ukuxhasa indawo yokuxhasa. Iinkcukacha zemibhobho yorhwebo yokungenisa elizweni kunye nokuthumela ngaphandle iya kufana naleyo yorhwebo lokungenisa kunye nokuthengisa ngaphandle kweempompo zamachiza.
5. Xa impompo yekhemikhali yokufunxa yendalo ifakwe, umbhobho wokungena kufuneka udibaniswe kuqala, kwaye umbhobho wexabiso lokuphuma kufuneka udibaniswe emva kokuba i-liquid izaliswe, kwaye umphumo we-brake ulungile. Umbhobho wokungena wempompo kufuneka udityaniswe nempompo, kwaye ubude obugcweleyo abunakudlula iimitha ezi-5, kungenjalo kuya kulimaza ukufunxa kwendalo kwempompo yekhemikhali yesiphumo sokufunxa sendalo, ubungakanani bobude bokufunxa bendalo bunokubalwa ngokwefomula. : amanzi abandayo ukufunxa ngokwendalo 3m/ medium ingxinano ezalanayo = eneneni ukufunxa ngokwendalo ububanzi ratio.
6. Emva kokufakwa kwepompo yekhemikhali, ekugqibeleni ujikeleze isixhobo sokudibanisa i-shaft ngesandla ukuze ukhangele ukuba kukho ingxaki yokukrala. Xa ujikeleza, kulula kwaye i-symmetrical ukuba ukufakela kugqityiwe.
I-7, i-magnetic link yepompo yekhemikhali ayikwazi ukukhutshwa kunye ne-particulate matter kwaye ilula kakhulu kwi-crystal liquid, ungavumeli ukusebenza okuqhubekayo phantsi komqathango wokucima ukukhutshwa kwamanzi amdaka, kufuneka kugcinwe ubuncinane ukuhamba okupheleleyo.
I-8, ukwenzela ukuba ugweme ukungcola kwimpompo yeekhemikhali, ekungeneni kufuneka kufakwe kwisixhobo sokucoca, indawo yonke yokukhathazeka kufuneka ibe ngaphezu kwe-3 ~ 4 amaxesha ecandelo lombhobho.
9. Impompo yekhemikhali enentloko yempompo ephezulu kufuneka kwakhona ifake ivalve yokutshekisha kumbhobho wexabiso lokuthumela ngaphandle ukuthintela ihamile yamanzi ukuba ivale ngokukhawuleza.
10. Kuyimfuneko ukuba kuqinisekiswe ukuba ukufakwa komlinganiselo wobude ukuya kububanzi bompompo weekhemikhali kuhambelana nesibonelelo se-cavitation sempompo, kwaye kuyimfuneko ukuqwalasela ngokupheleleyo umonakalo wepayipi kunye nobushushu obuphakathi. Ukuze ugweme isibonelelo se-cavitation esibangelwa ngumzimba wempompo yeekhemikhali, kufuneka ihambelane nobudlelwane obulandelayo: NPSHaNPSHr 0.5NPSHa: Isibonelelo esivumelekileyo se-Cavitation (m) NPSHr I-Indispensable Cavitation allowance (m) NPSHa = 106 (PA-PV) / g no s-hf Pa: Isiphumo kumphezulu womthumeli ophakathi koxinzelelo olusebenzayo (MPa)Pv: umphunga ophakathi woxinzelelo osebenzayo (MPa): ubuninzi obuzalanayo bendawo ephakathi (kg/m3)hs: umlinganiselo wokufunxa ububanzi (m)hf : ukuxhathisa umbhobho wokufunxa (m) g: amandla ongezelelweyo (m/s).
I-11, xa ukushisa kwamanzi kuphezulu, kuyimfuneko ukwamkela isicwangciso sokupholisa amanzi sokutywinwa kwepompo yeekhemikhali ukuphepha ukuphulwa kwendandatho ye-static ye-deformation ye-mechanical seal.
12. Xa i-viscosity ye-liquid ekhutshwe yipompo yekhemikhali iphezulu kakhulu, iimpawu zempompo ye-centrifugal kunye namandla aphumayo aguqulwa kakhulu.
Amanqaku okusetyenziswa:
1. Xa ufaka ipompo yeekhemikhali, ubunzima bombhobho abukwazi ukufakwa kwimpompo. Kufuneka babe nomzimba wabo oxhasayo, ukwenzela ukuba ungenzi deformation ichaphazele ukusebenza kunye nobomi.
I-2, insimbi engenasici yempompo yombhobho wemichiza kunye ne-motor sisakhiwo esibalulekileyo, ukufakwa ngaphandle kokulungelelaniswa, ngoko ke ukufakela kulula kakhulu.
3. I-anchor bolt kufuneka iqiniswe ngexesha lofakelo ukuphepha impembelelo ye-vibration ekusebenzeni kwepompo yeekhemikhali xa iqala.
I-4, ngaphambi kokufakwa kwempompo yeekhemikhali kufuneka ihlolisise ngokucophelela ukuba akukho zinto zinzima kumgijimi wepompo ezichaphazela ukusebenza kwempompo (njengamatye, iinqununu zentsimbi, njl.), ukwenzela ukuba ugweme umonakalo kwi-impeller kunye impompo yomzimba xa impompo yeekhemikhali ezisentirifugal isebenza.
I-5, ukwenzela ukuba kube lula ukugcinwa kunye nokusetyenziswa kokhuseleko, kwi-inlet yempompo yeekhemikhali kunye nombhobho wokuphuma ufakwe ivalve elawulayo kunye ne-gauge yoxinzelelo kufuphi ne-outlet yempompo, ukuqinisekisa ukuba kwintloko ehleliweyo kunye noluhlu lokuhamba komsebenzi, ukuqinisekisa ukusebenza okuqhelekileyo. wempompo, ukwandisa ubomi benkonzo yempompo yemichiza.
I-6, impompo esetyenziselwa iziganeko zokufunxa, kufuneka ixhotyiswe ngevalve esezantsi, ngaphandle kokuba yimpompo yokuzimela ngokwayo ayikwazi ukufaka ivalve esezantsi, kwaye umbhobho wokungena kufuneka ube nokugoba okuninzi, kwangaxeshanye kufuneka kungabi namanzi. ukuvuza, ukuvuza okwenzekayo.
7. Umgca wokukhupha, njenge-valve yokutshekisha, kufuneka ufakwe ngaphandle kwevalve yesango.
8. Emva kofakelo, hambisa i-shaft yepompo, i-impeller kufuneka ibe nesandi sokuxutywa okanye i-axick phenomenon, ngaphandle koko umpompo kufuneka udityaniswe ukujonga isizathu.
I-9, ukufakwa kwempompo yeekhemikhali kuhlulwe kuqhagamshelwano oluqinileyo kunye nokufakelwa kokudibanisa okuguquguqukayo.
Ufakelo lwesivalo sempompo yekhemikhali kunye nokusetyenziswa kwamanqaku aphambili
Impompo yemichiza isetyenziswa rhoqo kakhulu kubenzi beekhemikhali kunikezelo lwamanzi, kwaye kuqhelekile ukusebenzisa iivalvu zemibhobho. Kukho iintlobo ezininzi kunye neemilo zeevalvu. Yintoni esifanele sinikele ingqalelo kuyo kwinkqubo yofakelo kunye nokusetyenziswa kunye nendlela yokuyifaka?
Enye, eyokuqala isalathiso kunye nesikhundla, iivalve ezininzi zinendlela: njengevalve yeglowubhu, ivalve ye-throttle, ivalve yokunciphisa uxinzelelo, ivalve yokukhangela, njl. ), okanye ungasebenzi (njengevalve yokunciphisa uxinzelelo), kwaye ubangele ingozi (njengevalve yokukhangela). Iivalvu ngokubanzi zineempawu ezibonisa indlela emzimbeni. Ukuba akunjalo, kufuneka ichongwe ngokuchanekileyo ngokwemigaqo yokusebenza yevalve. Igumbi levalve yevalve yeglowubhu ayilungelelananga, ulwelo kufuneka luyeke ukusuka ezantsi ukuya phezulu ngezibuko levalve, ukuze ukuxhathisa ulwelo kuncinci (kumiselwe yimilo), ukuvulwa kogcino lwamandla (ngenxa Uxinzelelo oluphakathi phezulu), indawo evaliweyo ayicinezeli ukupakisha, ukugcinwa lula, yiyo loo nto ivalve yeglowubhu ingenakuguqulwa. Ezinye iivalve nazo zineempawu zazo.
Musa ukuflip isango (okt ivili lesandla lihle), kungenjalo i-medium iya kuhlala ikwisithuba sokugquma sevalve ixesha elide, isiqu esinomhlwa kulula, kwaye kwezinye iimfuno zenkqubo contraindo. Kunzima kakhulu ukutshintsha ukupakisha ngexesha elinye. Ivalve yesango lesikhondo esivulekileyo, musa ukufaka ngaphantsi komhlaba, kungenjalo ngenxa ye-corrosion efumileyo evele isikhondo. Phakamisa ivalve yokukhangela, ukufakela ukuqinisekisa ukuba idiskhi nkqo, ukuze ukuphakamisa bhetyebhetye. Swing itshekhi iivalvu, xa efakwe ukuqinisekisa ukuba inqanaba isikhonkwane, ukuze ujingi bhetyebhetye. I-valve yokunciphisa uxinzelelo kufuneka ifakwe ngokuthe tye kumbhobho othe tye, kwaye ungaguquki kuyo nayiphi na indlela.
Isibini, indawo yokufakela ivalve kufuneka ilungele ukusebenza; Nangona ukufakela kunzima okwethutyana, cinga ngomsebenzi wexesha elide. I-handwheel yevalve ihambelana nesifuba (ngokuqhelekileyo i-1.2 yeemitha kude nomgangatho wokusebenza), ukwenzela ukuba kube lula ukuvula nokuvala i-valve. I-handwheel yevalve yokumisa kufuneka ibe phezulu, musa ukuthambeka, ukuze uthintele ukusebenza kakubi. Umatshini wodonga uxhomekeke kwivalve yesixhobo, kodwa kwakhona ushiye indawo yokuba umqhubi ame. Ukuphepha ukusebenza kwesibhakabhaka, ngakumbi i-asidi kunye nesiseko, imidiya enetyhefu, ngaphandle koko ayikhuselekile.
Ezintathu, amanyathelo okufakela ivalve: musa ukuchaphazela ivalve eyenziwe ngezinto ezinqabileyo.
I-1, ngaphambi kofakelo, khangela ngononophelo ukuba imodeli kunye neenkcukacha zazo zonke iivalvu zihambelana nomnye, ukuba ukupakishwa kuhambelana, nokuba ibholithi yedlala inesibonelelo esaneleyo sohlengahlengiso, kwaye khangela ukuba isiqu kunye nediski ziyathetha, nokuba kukho. into ebambekile kwaye egwenxa.
2. Xa uphakamisa i-valve, intambo akufanele iboshwe kwi-handwheel okanye i-valve stem ukuze ugweme umonakalo kula macandelo, kodwa kufuneka uboshwe kwi-flange; Kwiivalvu eziqhagamshelwe kumbhobho, qiniseka ukuba ucocekile.
3. Xa ufaka ivalve yesijivu, ukupakisha ukutywinwa (i-twine kunye ne-aluminium yeoli okanye i-polytetrafluoroethylene ibhanti yezinto eziluhlaza) kufuneka isongelwe kwintambo yombhobho, ukuze ingangeni kwivalve, ukwenzela ukuba i-valve yememori yevolumu, echaphazela ukuhamba kweendaba. . Xa ufaka iivalve ze-flange, qaphela ukuba uqinise iibholithi ngokulinganayo kwaye ngokulinganayo. I-valve flange kunye ne-flange yombhobho kufuneka ihambelane, ukukhutshwa okufanelekileyo, ukwenzela ukuba ugweme uxinzelelo olugqithisileyo kunye nokuqhekeka kwevalve. Ngokukodwa kwizinto ezinqabileyo kunye neevalve ezinamandla aphantsi. Iivalvu ezidityaniswe ngemibhobho kufuneka zifakwe kwindawo edityanisiweyo kuqala, emva koko zivule ngokupheleleyo iindawo zokuvala, emva koko zidityaniswe zifile.
I-4, ezinye iivalve, ngaphezu kwezibonelelo eziyimfuneko zokukhusela, kodwa nazo zine-bypass kunye nesixhobo. Kuye kwafakelwa i-bypass. Kulula ukulungisa umgibe. Ezinye iivalve, nazo zinofakelo lwe-bypass. Ingaba ukufaka i-bypass kuxhomekeke kwimeko ye-valve, ukubaluleka kunye neemfuno zokuvelisa.
Ezine, i-valve ye-inventory, enye ukupakisha ayilungile, kwaye ezinye azihambisani nokusetyenziswa kwe-medium, efuna ukutshintsha ukupakisha; Kodwa xa isetyenzisiwe, i-filler kufuneka iguqulelwe kwindawo ephakathi. Xa utshintsha isigcwalisi, cinezela ngokujikeleza ngokujikeleza. Umthungo ngamnye wendandatho ukuya kuma-degrees angama-45 ufanelekile, ring kunye ne-ring uvule i-180 degrees. Ukuphakama kokupakisha kufuneka kuthathelwe ingqalelo igumbi lokucofa ngokuqhubekayo kwegland. Okwangoku, inxalenye engezantsi ye-gland kufuneka ivunyelwe ukuba icinezele igumbi lokupakisha kubunzulu obufanelekileyo, obunokuthi ngokuqhelekileyo bube yi-10-20% yobunzulu obupheleleyo begumbi lokupakisha. Kwiivalvu zemfuno ephezulu, i-joint Angle yi-30 degrees. I-seams phakathi kwamakhonkco igxininiswe ngama-degrees angama-120.
Ukongeza kule filler ingentla, irabha O-ring ingasetyenziswa ngokwemeko ethile (ukumelana irabha yendalo ukuya alkali buthathaka ngezantsi 60 degrees Celsius, ukuxhathisa irabha butadiene kwiikristale oyile ngaphantsi 80 degrees Celsius, ukuxhathisa irabha Fluorine ngaphantsi 150 degrees Celsius. iintlobo ngeentlobo zosasazo ezonakalisayo) iziqwenga ezithathu zipakishwe i-polytetrafluoroethylene ring (ukumelana ngaphantsi kwe-200 degrees Celsius ezomeleleyo eendaba ezonakalisayo) iringi yesitya senayiloni (ukumelana ngezantsi kwe-120 ngokukaCelsius ammonia, ialkali) ukwenza isigcwalisi. Umaleko we-polytetrafluoroethylene (PTFE) i-tape ye-raw material ihlanganiswe kwi-disc ye-asbestos eqhelekileyo, enokuphucula umphumo wokutywina kunye nokunciphisa i-electrochemical corrosion ye-valve stem. Xa ucinezela i-seasoning, i-valve stem kufuneka ijikelezwe ngaxeshanye ukuyigcina ifana kwaye ithintele ukuba ingafi kakhulu. Idlala kufuneka liqiniswe ngokulinganayo kwaye lingathambeki.
Isihlanu, ezinye iivalve kufuneka zibe nokhuseleko lwangaphandle, oluyi-insulation kunye nokupholisa. Imigca yomphunga oshushu ngamanye amaxesha yongezwa kumaleko wokugquma. Luluphi uhlobo lwevalve ekufuneka lufakwe i-insulated okanye lugcinwe lubanda, ngokweemfuno zemveliso. Apho i-medium kwi-valve inciphisa ubushushu kakhulu, iya kuchaphazela ukusebenza kakuhle kwemveliso okanye ukumisa i-valve, kufuneka ugcine ubushushu, okanye udibanise ubushushu; Apho i-valve ibonakaliswe, ichasene nemveliso okanye ibangele iqabaka kunye nezinye izinto ezimbi, kuyimfuneko ukubanda. Izinto zokugquma i-asbestos, uboya be-slag, uboya beglasi, i-perlite, i-diatomite, i-vermiculite kunye nokunye; Izinto zokupholisa ziyi-cork, i-perlite, i-foam, iplastiki kunye nokunye
Ixesha lokuposa: Nov-07-2022
