Ukufakwa kwepompo yekhemikhali nokusebenzisa izinyathelo zokuqapha amaphuzu asemqoka okufakwa kanye nokusetshenziswa kwamavalvu wephampu yamakhemikhali

Ukufakwa kwepompo yekhemikhali nokusebenzisa izinyathelo zokuqapha amaphuzu asemqoka okufakwa kanye nokusetshenziswa kwamavalvu wephampu yamakhemikhali

Iphampu yamakhemikhali imboni yamakhemikhali ukusebenzisa imikhiqizo engcono kakhulu, kunezinhlobo eziningana zephampu yamakhemikhali ye-centrifugal ngokusho kwempahla ihlukaniswe i-polypropylene, ipulasitiki ye-fluorine, insimbi engagqwali, ngokusho kwesakhiwo somzimba wephampu ihlukaniswe ngohlobo lokuxhuma oluqondile, shaft ehlangene. uhlobo, mpo, ovundlile eziningana, ngokusho isidingo sangempela kungabhekisela ukukhetha imikhiqizo efanele. Iphampu isethulo sobuchwepheshe obuthuthukile bangaphandle obuthuthukisiwe inkampani yethu ingathutha equkethe izinhlayiya eziqinile, i-crystallization elula ye-medium, ukumelana nezinga lokushisa, ukumelana nokugqwala, akukho ukuvinjelwa.
Inqubo yokufaka:
1, ngokusho kwemininingwane eyisisekelo ukwenza umsebenzi omuhle kakhonkolo, ndawonye ukungcwaba isikulufu sesisekelo sepompo yamakhemikhali.
2. Hlola iphampu yamakhemikhali kanye nenjini ngaphambi kokufakwa. Ingxenye ngayinye kufanele ibe sesimweni esihle, futhi akufanele kube nokungcola ngaphakathi kwephampu yamakhemikhali.
I-3, iphampu yamakhemikhali iyonke kuya kokuyisisekelo, phansi kanye nendawo eyisisekelo ye-block absorber block, ngokusho kokulungiswa kwe-block absorber block, thola izinga elihle lepompo lamakhemikhali. Ngemva kokulungiswa, qinisa izikulufo zehange.
4, inani lokungenisa nokuthekelisa lephayiphi lephampu lamakhemikhali kufanele libe nohlaka lokusekela, alikwazi ukusebenzisa iphampu yamakhemikhali ukusekela iphuzu lokusekela. Imininingwane yamapayipi okuhweba okungenisa nokuthumela ngaphandle izofana naleyo yokuhwebelana nokuthumela ngaphandle kwamaphampu amakhemikhali.
5. Uma ipompo yekhemikhali yokumunca yemvelo ifakiwe, ipayipi lokungena kufanele lixhunywe kuqala, bese kuthi ipayipi lenani lokuphuma lixhunywe ngemva kokugcwalisa uketshezi, futhi umphumela webhuleki ube muhle. Ipayipi lokungena lephampu kufanele libhangqwe nepompo, futhi ubude obugcwele abunakudlula amamitha angu-5, ngaphandle kwalokho kuzolimaza ukumuncwa kwemvelo kwepompo yamakhemikhali umphumela wokumunca wemvelo, isilinganiso sobubanzi bobude bokumunca bemvelo singabalwa ngokuvumelana nefomula. : amanzi abandayo ukumunca yemvelo 3m/ medium isihlobo ukuminyana = empeleni ukuncela ubude bemvelo ububanzi isilinganiso.
6. Ngemva kokufakwa kwephampu yamakhemikhali, ekugcineni ujikeleze idivayisi yokuxhuma i-shaft ngesandla ukuze uhlole ukuthi kukhona yini inkinga yokuklwebheka. Uma uzungezisa, kulula futhi ku-symmetrical ukuthi ukufakwa kuqedwe.
I-7, i-magnetic link chemical pump ayikwazi ukukhishwa nge-particle matter futhi kulula kakhulu ku-crystal liquid, ungavumeli ukusebenza okuqhubekayo ngaphansi kwesimo sokucisha indawo yokuthuthwa kwendle, idinga ukugcina okungenani ukugeleza okuphelele.
8, ukuze ugweme ukungcola empompo wamakhemikhali, emnyango kufanele kufakwe kudivayisi yokuhlunga, indawo yokukhathazeka kufanele ibe ngaphezu kwezikhathi ezi-3 ~ 4 zesigaba samapayipi.
9. Ipompo yekhemikhali enekhanda lepompo eliphezulu kufanele futhi ifake ivalvu yokuhlola epayipini lenani lokuthekelisa ukuvikela isando samanzi ukuthi sivaleke ngokuzumayo.
10. Kuyadingeka ukuqinisekisa ukuthi ukufakwa kwesilinganiso sokuphakama nobubanzi bepompo yamakhemikhali kuhambisana nesibonelelo se-cavitation sepompo, futhi kuyadingeka futhi ukucabangela ngokugcwele umonakalo wamapayipi kanye nokushisa okuphakathi. Ukuze ugweme imvume ye-cavitation ebangelwa umzimba wepompo yamakhemikhali, kufanele ihambisane nobudlelwane obulandelayo: NPSHaNPSHr 0.5NPSHa: I-Allowable Cavitation allowance (m)NPSHr Indispensable Cavitation allowance (m)NPSHa=106(PA-PV)/ g no s-hf Pa: Umthelela endaweni yokucindezela okuphakathi kweconveyor (MPa)Pv: ingcindezi yokusebenza komhwamuko omaphakathi (MPa) : ukuminyana okuhlobene kwendawo emaphakathi (kg/m3)hs: isilinganiso sobubanzi bokudonsa (m)hf : ukumelana nokungqubuzana kwepayipi lokumunca (m) g: amandla okuhlanganisa (m/s).
I-11, lapho izinga lokushisa loketshezi liphezulu, kuyadingeka ukwamukela isu lokupholisa amanzi lophawu lwepompo yamakhemikhali ukuze kugwenywe ukugqashuka kwendandatho emile ye-deformation mechanical seal.
12. Uma i-viscosity yoketshezi olukhishwe iphampu yamakhemikhali iphezulu kakhulu, izici zepompo ye-centrifugal namandla okukhiphayo zishintshwa kakhulu.
Amanothi okusetshenziswa:
1. Uma ufaka iphampu yamakhemikhali, isisindo sepayipi asikwazi ukungezwa epompo. Kufanele babe nomzimba wabo osekelayo, ukuze kungenzi ukuguqulwa kuthinte ukusebenza nokuphila.
2, insimbi engagqwali iphayiphi yamapayipi amakhemikhali kanye nemoto iyisakhiwo esibalulekile, ukufakwa ngaphandle kokuqondanisa, ngakho ukufakwa kulula kakhulu.
3. Ibholithi yehange kufanele iqiniswe ngesikhathi sokufakwa ukuze kugwenywe umthelela wokudlidliza ekusebenzeni kwepompo yamakhemikhali lapho iqala.
I-4, ngaphambi kokufakwa kwepompo yamakhemikhali kufanele ihlole ngokucophelela ukuthi azikho yini izinto eziqinile kumgijimi wepompo ezithinta ukusebenza kwepompo (njengamatshe, izinhlayiya zensimbi, njll.), ukuze ugweme ukulimala kwe-impeller kanye futha umzimba lapho iphampu yamakhemikhali eyi-centrifugal isebenza.
5, ukuze kube lula ukulungisa nokusebenzisa ukuphepha, endaweni yepompo yekhemikhali kanye nepayipi lokuphuma kufakwe ivalvu elawulayo kanye negeji yokucindezela eduze nendawo yokukhipha iphampu, ukuze kuqinisekiswe ukuthi endaweni elinganiselwe yekhanda kanye nohlu lokugeleza lokusebenza, ukuqinisekisa ukusebenza okuvamile. wephampu, ukwandisa impilo yesevisi yephampu yamakhemikhali.
I-6, iphampu esetshenziselwa izikhathi zokumunca, kufanele ifakwe i-valve engezansi, ngaphandle uma kuyiphampu eziziqhumisayo ayikwazi ukufaka i-valve engezansi, futhi ipayipi lokungena akufanele libe namagobi amaningi kakhulu, ngesikhathi esifanayo akufanele libe namanzi. ukuvuza, ukuvuza okwenzekayo.
7. Umugqa wokukhipha, njenge-valve yokuhlola, kufanele ufakwe ngaphandle kwe-valve yesango.
8. Ngemuva kokufakwa, hambisa i-pump shaft, i-impeller kufanele ibe nomsindo we-friction noma into enamathele, ngaphandle kwalokho ipompo kufanele ihlakazwe ukuze ihlole imbangela.
9, ukufakwa kwephampu yamakhemikhali kuhlukaniswe yaba uxhumano oluqinile nokufakwa kokuxhumeka okuguquguqukayo.
Ukufakwa kwe-valve yepompo yekhemikhali kanye nokusetshenziswa kwamaphuzu abalulekile
Iphampu yekhemikhali isetshenziswa kakhulu kubakhiqizi bamakhemikhali ekuletheni uketshezi, futhi kuvamile ukusebenzisa ama-valve amapayipi. Kunezinhlobo eziningi kanye nokubunjwa kwama-valve. Yini okufanele siyinake ekufakeni nasekusebenziseni inqubo nendlela yokuyifaka?
Eyokuqala, eyokuqala isiqondiso nendawo, ama-valve amaningi anesiqondiso: njenge-valve yeglobe, i-throttle valve, i-valve yokunciphisa ingcindezi, i-valve yokuhlola, njll., uma ihlanekezelwe, izothinta umphumela wokusetshenziswa nokuphila (njenge-throttle valve. ), noma ingasebenzi (njenge-valve yokunciphisa ukucindezela), futhi ibangele ingozi (njenge-valve yokuhlola). Ama-valve avamile anezimpawu eziqondisayo emzimbeni. Uma kungenjalo, kufanele ikhonjwe ngendlela efanele ngokuvumelana nesimiso sokusebenza se-valve. I-valve ye-valve ye-globe valve ayilingani, uketshezi kufanele ludedelwe ukusuka phansi luye phezulu ngembobo ye-valve, ukuze ukumelana noketshezi kube kuncane (kunqunywa ukuma), ukuvulwa kokugcinwa kwamandla (ngenxa i-medium pressure up), i-medium evaliwe ayicindezeli ukupakisha, ukugcinwa okulula, yingakho i-valve yembulunga ingakwazi ukuguqulwa. Amanye ama-valve nawo anezici zawo.
Ungaphenyisi isango (okungukuthi isondo lesandla liye phansi), ngaphandle kwalokho okuphakathi kuzohlala isikhathi eside esikhaleni sekhava yevalvu, isiqu esigqwala kalula, futhi kwezinye izidingo zenqubo i-contraindo. Akulula kakhulu ukushintsha ukupakisha ngesikhathi esifanayo. Vula i-stem gate valvu, ungafaki ngaphansi komhlaba, ngaphandle kwalokho ngenxa yokugqwala okumanzi kwesiqu esivelile. Phakamisa isheke valve, ukufakwa ukuqinisekisa ukuthi i-disc mpo, ukuze ephakamisa nezimo. Swing isheke valve, lapho efakwe ukuqinisekisa ukuthi izinga pin, ukuze swing nezimo. I-valve yokusiza ukucindezela kufanele ifakwe iqonde epayipini elivundlile, futhi ungatsheli kunoma iyiphi indlela.
Okwesibili, indawo yokufaka i-valve kufanele ibe lula ukusebenza; Ngisho noma ukufakwa kunzima okwesikhashana, cabanga ngomsebenzi wesikhathi eside. Isondo lesandla se-valve lihambisana nesifuba (ngokuvamile amamitha angu-1.2 ukusuka endaweni yokusebenza), ukuze kube lula ukuvula nokuvala i-valve. I-handwheel ye-valve yokufika kufanele ibe phezulu, ungatsheki, ukuze ugweme ukusebenza kabi. Umshini wodonga uncike ku-valve yemishini, kodwa futhi ushiye indawo yokuthi opharetha ame. Ukuze ugweme ukusebenza kwesibhakabhaka, ikakhulukazi i-asidi nesisekelo, imidiya enobuthi, ngaphandle kwalokho ayiphephile.

Ezintathu, izinyathelo zokufakwa kwe-valve: ungathinti i-valve eyenziwe ngezinto eziphukayo.
I-1, ngaphambi kokufakwa, hlola ngokucophelela ukuthi imodeli kanye nokucaciswa kwawo wonke ama-valve kuhambisana nomunye nomunye, ukuthi ukupakisha kuqinile, ukuthi ibhawudi le-gland linemvume eyanele yokulungisa, futhi uhlole ukuthi isiqu nediski ziyakhuluma, noma kukhona into ebambekile futhi etshekile.
2. Uma uphakamisa i-valve, intambo akufanele iboshwe ku-handwheel noma isiqu se-valve ukugwema ukulimala kulezi zingxenye, kodwa kufanele iboshwe ku-flange; Ukuze uthole ama-valve axhunywe epayipini, qiniseka ukuthi uyawahlanza.
3. Lapho ufaka i-valve yesikulufu, ukupakishwa kokuvala (i-twine namafutha e-aluminium noma ibhande le-polytetrafluoroethylene eluhlaza) kufanele kuboshwe emculweni wepayipi, ukuze kungangeni ku-valve, ukuze kungagcini ivolumu yememori ye-valve, kuthinte ukuhamba kwemidiya. . Uma ufaka ama-valve e-flange, qaphela ukuqinisa ama-bolts ngokulinganayo nangokulinganayo. I-valve flange kanye ne-pipe flange kufanele ihambisane, imvume enengqondo, ukuze ugweme ukucindezela okukhulu ngisho nokuqhekeka kwe-valve. Ikakhulukazi ezintweni eziphukayo kanye nama-valve anamandla aphansi. Amavalvu azoshiselwa ngamapayipi kufanele ashiselwe kuqala, bese evula ngokugcwele izingxenye zokuvala, bese efakwa efile.
4, amanye ama-valve, ngaphezu kwezindawo zokuvikela ezidingekayo, kodwa futhi abe ne-bypass kanye nensimbi. Kufakwe i-bypass. Kulula ukulungisa isicupho. Amanye ama-valve, nawo anokufakwa kwe-bypass. Ukuthi ukufakwa kwe-bypass kuncike esimweni se-valve, ukubaluleka kanye nezidingo zokukhiqiza.

Okwesine, i-valve yokusungula, ukupakisha okunye akukuhle, kanti abanye abahambisani nokusetshenziswa kwe-medium, okudinga ukushintsha ukupakisha; Kodwa uma isetshenziswa, i-filler kufanele iguqulelwe esimweni esiphakathi. Lapho ushintsha isigcwalisi, cindezela ngokuzungeza ngokuzungeza. Umthungo ngamunye wendandatho ukuya kuma-degree angama-45 kufanelekile, indandatho futhi ikhale ivuleke ngama-degree angama-180. Ukuphakama kokupakisha kufanele kucabangele igumbi lokucindezela okuqhubekayo kwe-gland. Njengamanje, ingxenye engezansi yegland kufanele ivunyelwe ukucindezela ikamelo lokupakisha ekujuleni okufanele, okungaba ngokujwayelekile kube ngu-10-20% wengqikithi yokujula kwekamelo lokupakisha. Kuma-valve adingeka kakhulu, i-engeli ehlangene ingama-degree angama-30. I-seams phakathi kwamasongo inyakaziswa ngama-degree angu-120.
Ngaphezu kokugcwalisa okungenhla, i-O-ring yerabha ingasetshenziswa futhi ngokuya ngesimo esithile (ukumelana nenjoloba yemvelo ku-alkali ebuthakathaka engaphansi kwama-degree Celsius angama-60, ukumelana nenjoloba ye-butadiene kumakristalu kawoyela angaphansi kuka-80 degrees Celsius, ukumelana nenjoloba ye-Fluorine ngaphansi kuka-150 degrees Celsius inhlobonhlobo yemidiya egqwalayo) izingcezu ezintathu ezistakiwe iringi ye-polytetrafluoroethylene (ukumelana okungaphansi kuka-200 degrees Celsius imidiya edlayo enamandla) indandatho yesitsha senayiloni (ukumelana ngaphansi kuka-120 degrees Celsius ammonia, alkali) ukwakha isigcwalisi. Ungqimba lwetheyiphu ye-polytetrafluoroethylene (PTFE) igoqwe kwidiski ye-asbestos evamile, engathuthukisa umphumela wokuvala futhi inciphise ukugqwala kwe-electrochemical kwesiqu se-valve. Lapho ucindezela isinongo, isiqu se-valve kufanele sijikelezwe ngesikhathi esifanayo ukuze sigcine sisesimweni esifanayo futhi sivimbele ukuthi singafi kakhulu. Indlala kufanele iqiniswe ngokulinganayo futhi ingatsheki.

Okwesihlanu, amanye ama-valve kumele abe nesivikelo sangaphandle, okuwukupholisa nokupholisa. Imigqa ye-steam eshisayo kwesinye isikhathi yengezwa kungqimba lokufakelwa. Hlobo luni lwe-valve okufanele lufakwe ngaphakathi noma lugcinwe lubanda, ngokuya ngezidingo zokukhiqiza. Lapho okuphakathi ku-valve kunciphisa izinga lokushisa kakhulu, kuzothinta ukusebenza kahle kokukhiqiza noma ukumisa i-valve, udinga ukugcina ukushisa, noma ngisho nokuxuba ukushisa; Lapho i-valve ivezwa khona, iyingozi ekukhiqizeni noma ibangele isithwathwa nezinye izinto ezimbi, kuyadingeka ukubanda. Izinto zokufakelwa i-asbestos, uboya be-slag, uboya bengilazi, i-perlite, i-diatomite, i-vermiculite njalonjalo; Izinto zokupholisa zingukhokho, i-perlite, igwebu, ipulasitiki nokunye