Amapayipi amapayipi agcwele yonke indawo. Uma kukhona izinkinga, lezi zici ezi-4 kuphela ezidingekayo ukuze kuxazululwe ama-valve amapayipi. Yini okufanele siyinake lapho sizifaka?
Iyini imisebenzi yamapayipi amapayipi?
Ungayifaka kanjani?
Zisho ukuthini izimpawu ezivamile?
Uma kukhona iphutha, indlela yokuyilungisa? Imisebenzi emi-4 ye-valve yamapayipi
Okokuqala, nquma futhi ukhulule i-medium
Lona umsebenzi oyisisekelo we-valve, ngokuvamile ukhetha i-valve yokudlula eqondile, ukumelana nokugeleza kwayo kuncane.
I-valve evalekile eya phansi (i-valve yembulunga, i-plunger valve) ngenxa yendlela yayo yokugeleza ehlukumezayo, ukumelana nokugeleza kuphakeme kunamanye ama-valve, ngakho akhethiwe kancane. Ama-valve avaliwe angasetshenziswa lapho ukumelana nokugeleza okuphezulu kuvunyelwe.
Okwesibili, lawula ukugeleza
I-valve okulula ukuyilungisa ngokuvamile ikhethwa ukulawula ukugeleza. Amavalvu OKUVALA abheke phansi (njengamavalvu e-GLOBE) AYIfanele Le Nhloso NGOBA Usayizi WeSIHLALO ULINGANISANA NE-STROKE YOKUVALA.
AMAVAVAVA Ajikelezayo (I-PLUG, uvemvane, amavalvu EBHOLA) kanye AMAVAVAVA OMZIMBA AFLEKILEYO (I-PINCH, I-DIAPHRAGM) AYATHOLAKALA NAWO UKULAWULWA OKUTHROTTLING, kodwa NGOKUVAMILE KUPHELA ebangeni elilinganiselwe lama-valve DIAMETERS.
I-VALVE yesango Isango elimise okwediski eliya embobeni yesihlalo esiyindilinga ukuze lenze ukunyakaza okuphambene, liseduze kuphela nendawo evaliwe, lingalawula kangcono ukugeleza, ngakho ngokuvamile alisetshenziselwa ukulawula ukugeleza.
Okwesithathu, ukuhamba kwe-shunt
I-valve ingaba namashaneli amathathu noma ngaphezulu, kuye ngesidingo sokuhlehla nokuphambukisa. Ama-valve okuxhuma nebhola afaneleka kakhulu kule njongo, ngakho-ke, ama-valve amaningi asetshenziselwa ukuhlehla nokuphambukisa akhethwa njengenye yala mavalvu.
Kodwa-ke, KWEZINYE IZIMO, ezinye IZINHLOBO ZAMAVAVAZI ZINGASE NAZO ZISETSHENZISWA NJENGEZIPHUMZI ZOhambo lokuya emsebenzini, INqobo nje kokuthi AMAVAVA AMABILI noma AMANINGI Axhumeke ngokufanele kwelinye.
4. Phakathi nezinhlayiya ezimisiwe
Lapho i-medium enezinhlayiya ezimisiwe, ** ifanele ukusetshenziswa kwezingxenye zokuvala eduze kwendawo yokuvala ye-valve eshelelayo enesenzo sokusula.
Uma UKUVALA KUME EMVA KWESIHLALO NAPHAMBILI, IZIQINISEKISO INGASE ZIBOSHWE, KHONA LE VALIVU IFANELE KUPHELA IMIDIYA EHLANZEKILE NGOKUQINISEKILE NGAPHANDLE NGAPHANDLE KOKUBA IMALI YOKUVALA IVUMELE UKUTHI IZIHLAYA ZIBOSHWE. Ama-valve ebhola nama-plug valve asula indawo yokuvala ngesikhathi sokuvula nokuvala, ngakho afaneleka ukusetshenziswa kumidiya enezinhlayiya ezimisiwe. Izinkinga ezi-3 zokufakwa kwamapayipi amapayipi
I. Hlola ngaphambi kokufakwa
1. Hlola ngokucophelela ukuthi imodeli ye-valve kanye nokucaciswa kuyahlangabezana yini nezidingo zomdwebo.
2. Hlola ukuthi isiqu nediski zivuleka kalula yini futhi azibambeki noma azitshekile.
3. Hlola ukuthi i-valve yonakele yini, nokuthi intambo ye-valve enentambo iqondile futhi iqinile.
4. Hlola ukuthi inhlanganisela yesihlalo kanye nomzimba we-valve iqinile, idiski ye-valve nesihlalo se-valve, isembozo se-valve kanye nomzimba we-valve, ukuxhumana phakathi kwesiqu se-valve ne-valve disc.
5. Hlola ukuthi i-valve padding, ukupakisha kanye ne-fasteners (ama-bolts) zifanelekile yini izidingo zemvelo yendlela yokusebenza.
6. I-valve endala noma esetshenziswe isikhathi eside yokunciphisa ukucindezela kufanele ihlakazwe, uthuli, isihlabathi kanye nezinye izinsalela kufanele zihlanzwe ngamanzi.
7.*** ukuvula uphawu, hlola idigri yokuvala, i-disc valve kumele ivalwe ngokuqinile.
2. Izinhlinzeko ezijwayelekile zokufakwa
1. Indawo yokufaka i-valve akufanele iphazamise ukusebenza, ukuhlakazwa nokugcinwa kwempahla, ipayipi kanye nomzimba we-valve ngokwawo, kuyilapho kucatshangelwa ukubukeka komhlangano.
2. Ngama-valve kumapayipi avundlile, faka isiqu se-valve phezulu noma nge-Engeli ethile, ungafaki isondo lesandla liye phansi. Ivalvu, isiqu kanye nesondo lesandla epayipini lokuphakama okuphezulu kungafakwa ngokuvundlile, futhi ukuvuleka nokuvalwa kwe-valve kungasetshenziswa ukude ngeketango endaweni ephansi eqondile.
3. Ukuhlelwa kwe-Symmetrical, kuhlanzekile futhi kuhle; Ivalvu esesikhuphukeni, ngaphansi kwesisekelo sokuvumela inqubo, isondo le-valve lesandla liye ekuphakameni kwesifuba ** ukusebenza okufanelekile, ngokuvamile okungu-1.0-1.2m ukusuka phansi kufanelekile, futhi isiqu se-valve kufanele sifakwe eceleni kokuqondisa komqhubi.
4. Ukuphakama komugqa omaphakathi wamavalvu esikhuphukeni esiseceleni neseceleni kuyavumelana ngokuqhathaniswa, futhi ibanga lenethi phakathi kwamasondo ezandla alikho ngaphansi kuka-100mm; Amavalvu emigqeni evundlile ehlangothini nehlangothini kufanele anyakaze ukuze kuncishiswe isikhala samapayipi.
5. Uma ufaka ama-valve asindayo kumaphampu amanzi, ama-heaters nezinye izinto zokusebenza, izisekelo ze-valve kufanele zisethwe; Uma i-valve isebenza njalo futhi ifakwe ngaphezu kwe-1.8m ukusuka endaweni yokusebenza, kufanele kuhlinzekwe isiteji sokusebenza esingashintshi.
6. Uma kunophawu lomcibisholo emzimbeni wevalvu, iphoyinti lomcibisholo liyisiqondiso sokugeleza kwe-medium. Lapho ufaka i-valve, qaphela ukuthi umcibisholo ukhomba endaweni efanayo nephakathi epayipini.
7. Uma ufaka ama-valve e-flange, qiniseka ukuthi ubuso obubili be-flange buhambisana futhi bugxilile, futhi ungasebenzisi ama-gaskets amabili.
8. Lapho ufaka ama-valve ane-threaded, i-valve enezintambo kufanele ifakwe uxhumano olubukhoma ukuze kuhlakazwe kalula. Ukusethwa koxhumano olubukhoma kufanele kucabangele ukunethezeka kokulungiswa, ngokuvamile amanzi ageleza kuvalvu bese kuba ngoxhumano olubukhoma.
Okwesithathu, izinyathelo zokuphepha zokufaka
1. Impahla yomzimba ye-valve iningi lenziwe nge-cast iron, brittle, ngakho-ke ayikwazi ukuthintwa izinto ezisindayo.
2. Uma uphatha i-valve, ungavumeli ukuphonsa; UMA UPHAKAMISA FUTHI UPHAKAMISA IVAVU, Intambo KUFANELE iboshwe emzimbeni wevalvu, futhi kwenqatshelwe ukubopha isondo lesandla, isiqu se-valve kanye nembobo yebhawudi ye-flange.
3. I-valve kufanele ifakwe endaweni ekahle kakhulu yokusebenza, ukugcinwa nokulungiswa kabusha. Akuvunyelwe ukulingcwaba ngaphansi komhlaba. I-valve yepayipi emgodini oqondile ongcwatshwe kanye nomsele kufanele ifakwe ekamelweni lokuhlola kahle, ukuze kube lula ukuvula, ukuvala nokulungiswa kwe-valve.
4. Qinisekisa ukuthi intambo iphelele futhi ayilimele, bese usonga intambo nge-hemp, amafutha omthofu noma ibhande le-PTFE lempahla eluhlaza. Lapho uguqula i-buckle, kuyadingeka ukusebenzisa i-wrench ukuze ujamu futhi ugoqe umzimba we-valve we-hexagonal ekugcineni kwepayipi.
5. Uma ufaka i-valve ene-flanged, qaphela ukuqinisa i-bolt yokuxhuma eduze kwesiqondiso se-diagonal, futhi usebenzise amandla ngisho nalapho usonta ukuvimbela i-gasket ukuthi ingaphumi noma ibangele ukuguquguquka nokulimala emzimbeni we-valve.
6. I-valve kufanele igcinwe ivaliwe ngesikhathi sokufakwa. Ukuze ama-valve E-THREADED asondele odongeni, ngokuvamile kuyadingeka ukususa isiqu, i-disc kanye nesondo lesandla ukuze ujike. Ngesikhathi se-disassembly, i-valve kufanele isuswe ngemva kokusonta isondo lesandla ukuze i-valve ivuleke. Izindlela ezi-6 zokufaka ezivamile zamapayipi amapayipi
A, i-valve yesango,
Eyaziwa nangokuthi i-valve yesango, ukusetshenziswa kwesango ukulawula ukuvuleka nokuvalwa kwe-valve, ngokushintsha ingxenye ephambanayo ukuze kulungiswe ukugeleza kwepayipi nokuvuleka nokuvalwa kwepayipi. I-valve yesango isetshenziselwa indawo ewuketshezi ukuvula noma ukuvala ngokugcwele kwepayipi.
Ukufakwa kwe-valve yesango ngokuvamile ngaphandle kwezidingo zokuqondisa, kodwa akukwazi ukuhlehliswa.
Okubili. I-valve yokumisa
I-valve esebenzisa i-disc ukulawula ukuvulwa nokuvala. Ngokushintsha imvume phakathi kwe-disc nesihlalo, okungukuthi, ukushintsha usayizi wesigaba sesiteshi ukuze ulungise ukugeleza okuphakathi noma ukusika indlela ephakathi. Naka isiqondiso sokugeleza koketshezi lapho ufaka i-valve yembulunga.
Ukufakwa kwevalvu yeglobhu kufanele kuhambisane nesimiso sokuthi, uketshezi olusepayipini ukusuka phansi ukuya embotsheni yevalvu, eyaziwa ngokuthi “phansi ukuya phezulu”, ungafaki ukuhlehla.
Okwesithathu, hlola i-valve
I-valve yokuhlola, eyaziwa nangokuthi i-valve yokuhlola, i-valve yokuhlola, iyi-valve ku-valve ngaphambi nangemva komehluko wengcindezi ngaphansi kwesenzo sokuvula nokuvala okuzenzakalelayo, indima yayo ukwenza i-medium yenze isiqondiso esisodwa sokugeleza, nokuvimbela ukugeleza okubuyela emuva okumaphakathi.
Hlola i-valve ngokuya ngesakhiwo sayo esihlukile, kukhona uhlobo lokuphakamisa, uhlobo lwe-swing kanye nohlobo lwevemvane. I-valve yokuhlola uhlobo lokuphakamisa kanye namaphoyinti avundlile naqondile.
Lapho ufaka i-valve yokuhlola, ukunakwa kufanele futhi kukhokhwe ekuqondisweni kokugeleza kwe-medium.
Okwesine, i-valve yokunciphisa ingcindezi
1. Iqembu le-valve yokunciphisa ingcindezi efakwe mpo ngokuvamile lihlelwa eduze kodonga endaweni ephakeme efanele ukusuka phansi; Isethi ye-valve yokunciphisa ukucindezela efakwe ngokuvundlile ngokuvamile ifakwa endaweni yokusebenza ehlala njalo.
2. Ukusetshenziswa kwensimbi kuma-valve okulawula amabili (okuvame ukusetshenziswa kuvalvu yeglobhu) ngaphandle kodonga, kwakha ubakaki, ipayipi le-bypass nalo libhajwe kubakaki, ukulinganisa nokuqondanisa.
3. Ivalvu yokunciphisa ukucindezela kufanele ifakwe iqonde epayipini elivundlile, ingatsheki, umcibisholo osemzimbeni wevalvu kufanele ukhombe lapho ukugeleza okuphakathi nendawo, hhayi ukuhlehla.
4. Ama-valve okumisa kanye nama-gauge okucindezela okuphezulu nokuphansi kufanele afakwe ezinhlangothini zombili ukuze kugcinwe izinguquko zokucindezela ngaphambi nangemva kwe-valve. Ububanzi bepayipi ngemva kwevalve yokunciphisa ingcindezi kufanele bube ngu-2#-3# mkhulu kunobubanzi bepayipi lokungena ngaphambi kwevalvu, futhi kufakwe ipayipi lokudlula ukuze lilungiswe.
5. Ipayipi yokulinganisa ingcindezi ye-valve yokunciphisa ingcindezi yefilimu kufanele ixhunywe kwipayipi eliphansi lokucindezela. Ivalvu yokuphepha izosethelwa ipayipi lomfutho ophansi ukuze kuqinisekiswe ukusebenza okuphephile kohlelo.
6. Uma isetshenziselwa ukuchithwa kwe-steam, ipayipi yokudonsa kufanele isethwe. Kuzinhlelo zamapayipi ezinezidingo eziphakeme zokuhlanzeka, izihlungi kufanele zibekwe ngaphambi kwe-valve yokunciphisa ingcindezi.
7. Ngemuva kokufakwa kweqembu le-valve yokunciphisa ingcindezi, i-valve yokunciphisa ingcindezi kanye ne-valve yokuphepha kufanele ihlolwe, igezwe futhi ilungiswe ngokuvumelana nezidingo zokuklama, futhi uphawu olulungisiwe kufanele lwenziwe.
8. Lapho ushayela i-valve yokunciphisa ukucindezela, vala i-valve yokungena ye-decompressor bese uvula i-valve yokushaywa umoya ukuze uyishaye.
Eyesihlanu, ugibe
1. I-valve yokusika (i-globe valve) kufanele imiswe ngaphambi nangemuva, futhi isihlungi kufanele sibekwe phakathi kwesicupho kanye ne-valve yokusika yangaphambili ukuze kuvinjelwe ukungcola okuku-condensate ekuvimbeleni isicupho.
2. Ipayipi lokuhlola kufanele libekwe phakathi kwesicupho kanye ne-valve yokusika yangemuva ukuze kuhlolwe ukuthi isicupho sisebenza ngokujwayelekile yini. Uma ipayipi lokuhlola livuliwe futhi inani elikhulu le-steam likhiqizwa, libonisa ukuthi isicupho siphukile futhi sidinga ukunakekelwa.
3. Ipayipi le-bypass isethelwe ukukhipha inani elikhulu lamanzi ahlanganisiwe ngesikhathi sokuqalisa ukuze kuncishiswe umthwalo wokukhipha isicupho.
4. Uma isicupho sisetshenziselwa ukususa amanzi e-condensate emishini eshisayo, kufanele ifakwe phansi kwemishini eshisayo ukuze ipayipi ye-condensate ixhunywe kumgibe ngokuma ukuvimbela ukugcinwa kwamanzi ngemishini eshisayo.
5. Indawo yokufaka kufanele ibe seduze ngangokunokwenzeka endaweni yokukhipha amanzi. Uma ibanga likude kakhulu, umoya noma isitimu sizonqwabelana epayipini elizacile eliphambi kogibe.
6. Uma ipayipi elivundlile lepayipi lesitimu elomile lilide kakhulu, inkinga ye-hydrophobic kufanele icatshangelwe.
Isithupha, i-valve yokuphepha
1. Ngaphambi kokufaka, umkhiqizo kufanele ubhekwe ngokucophelela ukuze ubone ukuthi sikhona yini isitifiketi sekhwalithi kanye nomyalelo womkhiqizo, ukuze ucacise isimo sokucindezela njalo lapho uphuma efektri.
2. I-valve yokuphepha kufanele ibekwe eduze kwesikhulumi ngangokunokwenzeka ukuze ihlolwe futhi igcinwe.
3. I-valve yokuphepha kufanele ifakwe ngokuqondile, i-medium kufanele igeleze isuka phansi iye phezulu, futhi ihlole ukuma kwesiqu se-valve.
4. Ngokuvamile, i-valve yokuphepha ayikwazi ukusethwa ngaphambi nangemva kwe-valve yokusika ukuqinisekisa ukuphepha nokuthembeka.
5 Ukukhululeka kwengcindezi yevalvu yokuphepha: lapho okuphakathi kuwuketshezi, ngokuvamile kukhishelwa epayipini noma ohlelweni oluvaliwe; Uma i-medium kuyigesi, ivamise ukukhishelwa emkhathini ongaphandle.
6. Indawo kawoyela negesi ngokuvamile ingakhishelwa emkhathini. Ipayipi elingenalutho levalvu yokukhulula kufanele libe ngamamitha amathathu ngaphezu kwesakhiwo eside esizungezile, kodwa izimo ezilandelayo kufanele zikhishelwe ohlelweni oluvaliwe ukuze kuqinisekiswe ukuphepha.
7. Ububanzi bepayipi labantu, ** kufanele bulingane nobubanzi bepayipi lokungena levalvu; I-DIAMETER YEPIYI LOKUCHIZA AWUBE NGAPHANSI KUKA-DIAMETER YOKUPHUMA YEVAVU, FUTHI IPHAYIBHI LOKUCHIZA LIZOKUKHOKHELWA NGAPHANDLE FUTHI LIFANELE NGOKUGOBELA UKUZE UKUPHUMA KWEPHIPHA KUQONDELWE INDLELA EPHEPHILE.
8. Uma i-valve yokuphepha ifakiwe, lapho uxhumano phakathi kwe-valve yokuphepha kanye nemishini kanye nepayipi kuyi-welding yembobo evulekile, ububanzi bokuvula kufanele bufane nobubanzi obujwayelekile be-valve yokuphepha.
Yini okufanele siyinake lapho sifaka ama-valve epayipi?
Ohlelweni lwamapayipi oketshezi, i-valve iyisici sokulawula, indima yayo eyinhloko ukuhlukanisa imishini kanye nesistimu yamapayipi, ukulawula ukugeleza, ukuvimbela ukubuyela emuva, ukulawula nokukhipha ingcindezi. Ingasetshenziswa ukulawula ukugeleza komoya, amanzi, isitimu, zonke izinhlobo zemithombo yezindaba ezonakalisayo, udaka, uwoyela, insimbi ewuketshezi kanye nemidiya ekhipha imisebe. Ngenxa yokuthi uhlelo lwepayipi lokukhetha i-valve efanele lubaluleke kakhulu, enqubweni yokwakha, ikhwalithi yokufakwa kwe-valve yamapayipi, ithinta ngokuqondile ukusebenza okujwayelekile kwesikhathi esizayo, ngakho-ke kufanele inake.
Hlola izinto ngaphambi kokufakwa
1. Hlola ngokucophelela ukuthi imodeli ye-valve kanye nokucaciswa kuyahlangabezana yini nezidingo zomdwebo.
2, hlola ukuthi i-stem ne-disc zivuleka kalula yini, ukuthi kukhona yini okubambekile nokutshekile.
3. Hlola ukuthi i-valve yonakele yini, nokuthi intambo ye-valve iqondile futhi iqinile.
4, hlola ukuthi ingabe inhlanganisela yesihlalo se-valve nomzimba we-valve iqinile, i-disc ye-valve nesihlalo se-valve, isembozo se-valve kanye nomzimba we-valve, isiqu se-valve kanye ne-valve disc.
5. Hlola ukuthi i-valve padding, ukupakisha kanye ne-fasteners (ama-bolts) zifanelekile yini izidingo zemvelo yendlela yokusebenza.
I-6, endala noma esetshenziswe isikhathi eside kufanele ihlakazwe, uthuli, isihlabathi kanye nezinye izinsalela kufanele zihlanzwe ngamanzi.
7, uphawu lokuvula, hlola idigri yokuvala, i-disc valve kumele ivalwe ngokuqinile.
Isikhathi sokuthumela: Oct-25-2022
