Wazi kangakanani malunga nemigangatho yevalvu eqhelekileyo? Ubunjineli bokufudumala obusetyenziswa ngokuqhelekileyo kwiivalvu

Wazi kangakanani malunga nemigangatho yevalvu eqhelekileyo? Ubunjineli bokufudumala obusetyenziswa ngokuqhelekileyo kwiivalvu

I-BS 6364 ivalve yobushushu obuphantsi
I-SHELL SPE 77/200 -50¡æ ngaphantsi kwevalve
I-SHELL SPE 77/209 0 ~ -50¡æ valve
Ubunjineli bokufudumala obusetyenziswa ngokuqhelekileyo kwiivalvu
Kukho iintlobo ezininzi zeevalvu kunye noluhlu olubanzi lokusetyenziswa. Kwipayipi ngamanye amaxesha sisixhobo esiphambili, dlala indima yokulawula; Ngamanye amaxesha sisixhobo sesibini kwaye sidlala indima encedisayo. Ukuba isetyenziswe ngokungafanelekanga, kuya kubakho "ukuqhuba, umngcipheko, ukuvuza, ukuvuza" isenzeko, ukukhanya kuchaphazela imveliso, iingozi ezibangela ubunzima. Ngoko ukuqonda kunye nokusetyenziswa ngokufanelekileyo kweevalvu ngumba obaluleke kakhulu.
1 Ukuhlelwa kweValve
Kukho iintlobo ezininzi zeevalvu ezisetyenziswa kwiinkqubo zokufudumeza. Ezinje ngeevalvu zesango, iivalvu zeglowubhu, iivalve zebhola, iivalve zebhabhathane, iivalve zetshekhi, iivalvu zokhuseleko, iivalve zokulawula, iivalve zokulinganisa, iivalve zokuzilinganisa njalo njalo. Masidlule kuzo nganye nganye.
1.1 iivalvu zesango
Ikwabizwa ngokuba ivelufa yesango, ivalve yesango, luhlobo lwesivalo esisetyenziswayo.

UMGAQO OSEBENZAYO: IGATE lokutywinwa kobuso kunye nesitulo sokutywina sobuso sobude obugudileyo, bugudileyo, buguquguqukayo, bucutshungulwe baba yinto efanelekileyo kakhulu, iperi etywiniweyo. Ngokucinezela phezulu nasezantsi kwesiqu sevalve, isango lenza ukuqhutywa kunye nokuvala okuphakathi. Isebenza njengokuvalwa kumbhobho.

Izinto eziluncedo: Ukuxhathisa ulwelo oluphantsi; Umphezulu wokutywina awukhukuliseka xa uvulwe ngokupheleleyo; Inokusetyenziswa kwimeko yokuhamba ngeendlela ezimbini, akukho mkhombandlela; Yomelele kwaye yomelele; Ayifanelekanga kuphela ukwenza iivalve ezincinci, kodwa inokwenza iivalve ezinkulu.
Ukungalungi: ukuphakama okuphezulu; Ixesha elide lokuvula kunye nokuvala; Inzima; Kunzima ukulungisa; Ukuba yivalve yesango elikhulu, ukusebenza ngesandla kunzima kakhulu.
Ivalve yesango ngokohlobo olwahlukileyo lwentonga ecacileyo kunye nodidi lwentonga emnyama; Ngokwesakhiwo seplate yesango, uhlobo oluhambelanayo kunye nohlobo lwe-wedge luhluke; Kukho isango elinye, iindawo ezimbini zesango. Kubunjineli bokufudumeza, ngokuqhelekileyo isetyenziselwa ukuvula intonga yohlobo lwevalve yesango enye (Z41H-16C) kunye nevalve emnyama yohlobo lwe-wedge enye yesango (Z45T-10), eyokuqala ifakwe kwicala eliphambili lesikhululo sobushushu, le yokugqibela ifakwe kwicala lesibini lesikhululo sobushushu. Ngokuqhelekileyo idlala iindima ezimbini: njengokutshintsha kwezixhobo eziphambili; Njengezixhobo ezincedisayo ezifakwe phambi nasemva kwesixhobo esiphambili solondolozo.
Xa i-valve yesango ifakwe, musa ukwenza i-handwheel engaphantsi komgca othe tye (inverted), ngaphandle koko i-medium iya kugcinwa kwi-cover ye-valve ixesha elide, kulula ukutshabalalisa i-stem. Kubunjineli bokufudumala, ivalve yesango yayiyeyona nto iphambili kwivalve. Ngoku ngokwamkelwa kweevalve zebhabhathane, iivalve zesango zitshintshwe ngamabhabhathane.
1.2 ivelufa yokumisa
Ikwaluhlobo lwesivalo esisetyenziswayo. Umgangatho jikelele ungaphantsi kwe-100mm. ISEBENZA NJENGEVAVAVU YESANGO NGAPHANDLE KOKUBA ISHUTOFF (DISC) IHAMBA KUMGCA WOMBIKO WESIHLALO. Idlala indima ekucinyweni kombhobho, inokuhlengahlengisa ukuhambahamba.
Izinto eziluncedo: Kulula ukwenza, kulula ukuyigcina, yomelele kwaye yomelele.
Ukungalungi: Kuphela yindlela enye yokuhamba kwemidiya evumelekileyo, eya ngqo xa ifakiwe. Ukuchasana nokuhamba okukhulu, ukutywinwa kakubi.

Ngokwesakhiwo samanqaku ahlukeneyo uhlobo oluchanekileyo, uhlobo lwe-Angle echanekileyo, ukuhamba ngokuthe tye, uhlobo olulungeleleneyo. I-Flange ngqo (J41H) kunye nentambo yangaphakathi echanekileyo (J11H) isetyenziswa ngokubanzi kubunjineli. Ivalve yeglowubhu ijonge kwicala, ayinakucinezelwa ngasemva. Ayifanelanga ijikwe.
Kwimveliso yethu, ubomi, ixesha elidlulileyo eliqhelekileyo elisetyenziswa ngokuthe ngqo, ivalve yeglowubhu encinci, ngoku ithathelwe indawo yivalve yebhola.
1.3 ivalve yebhola
Xa kuthelekiswa nevalve yesango kunye nevalve yeglowubhu, ivalve yebhola luhlobo olutsha lwesivalo esiye samkelwa ngokuthe ngcembe. Umgaqo wayo wokusebenza ngulo: i-spool yibhola enomngxuma, kwaye i-spool ijikeleza i-90¡ã ngesiqu sevalve ukwenza ivalve ingavalwa okanye ivalwe. Isebenza njengokuvalwa kumbhobho.
Izinto eziluncedo: Ukongeza kwiinzuzo zevalve yesango kunye neglowubhu yeglowubhu, kukho umthamo omncinci, ukutywinwa kakuhle (ukuvuza kwe-zero), kulula ukuyisebenzisa izibonelelo. Okwangoku, isetyenziswa kwi-petrochemical, amandla ombane, amandla enyukliya, i-aviation, i-aerospace kunye namanye amacandelo.
Iingxaki: Kunzima ukuyigcina ilungile.
Iivalvu zebhola zineendlela ezimbini: uhlobo lwebhola edadayo kunye nodidi lwebhola esisigxina. Kubunjineli bokufudumeza, ezinye izikhundla eziphambili, ezifana namasebe abalulekileyo, indawo yokudibanisa isikhululo sokushisa, i-DN250 engezantsi, ihlala ithatha iivalve zebhola ezithunyelwa ngaphandle. Yahlukile kwisakhiwo sevalve yebhola yasekhaya: umzimba wevalve yebhola yasekhaya ngokuqhelekileyo iziqwenga ezibini, iziqwenga ezintathu, uqhagamshelwano lweflange; Umzimba we-valve we-valve yebhola yokungenisa idityanisiwe, uxhulumaniso oludibeneyo, indawo ephosakeleyo incinci. Imvelaphi yayo yiNordic efana neFinland, iDenmark kunye nobunye ubuchwepheshe bokufudumeza amazwe aphuhlileyo. Umzekelo, i-NAVAL, iVEXVE evela eFinland, i-DAFOSS evela eDenmark, njl. Ngenxa yokutywinwa kwayo okulungileyo, ukuthembeka komsebenzi, kudala ithandwa ngabasebenzisi. Iivalvu zebhola azikho-directional kwaye zinokufakelwa nakweyiphi na i-engile. Ivalve yebhola yokuwelda ufakelo oluthe tyaba, ivelufa kufuneka ivulwe, uphephe ukuwelda xa umbane wentlantsi yokwenzakala kunye nomphezulu webhola; XA KUFAKWE KWIMIbhobho ethe nkqo, Ivalve KUFUNEKA IVULWE UKUBA ISIHLANGANISI ESINGAPHEZULU SISHIYELWE YAYE IVALIWE UKUBA ISIHLANGANISI ESINGAPHANTSI SISHIYELWE UKUNQANDA UKUSHISA OKUPHEZULU OKUPHAKATHI KWEVAVVU.
1.4 ivalve yebhabhathane
Kwinkqubo yokufudumala, ngoku isetyenziswayo, uninzi lweentlobo zevalve.
Umgaqo osebenzayo: I-disc yi-disc, ngokujikeleza kwe-stem, i-disc kwi-seat range ye-90¡æ ukujikeleza, ukuqonda i-valve switch. Isebenza njengokuvalwa kumbhobho.
Ingakwazi kwakhona ukulungelelanisa izinga lokuhamba.
Izinto eziluncedo: Isakhiwo esilula, umthamo okhanyayo, ukusebenza okulula, ukutywinwa okulungileyo.
Ukungalungi: xa ivuleke ngokupheleleyo, ipleyiti yevalve (intsimbi yokutywina) ikhukuliswa liphakathi.
Kubunjineli bokufudumeza, ivalve yebhabhathane inevalve yebhabhathane yentsimbi eneeccentric ezintathu, ivalve yebhabhathane yerabha ethambileyo.
1.4.1 Ivalve yebhabhathane yentsimbi etywiniweyo kathathu
Oku kubizwa ngokuba "yi-eccentricity emithathu" ibhekisa kwi-valve shaft, ipleyiti yevalvu kwindawo ehambelana nevalve ye-offset. Ivalve yebhabhathane eqhelekileyo yi-eccentric, oko kukuthi, umgca osembindini weshafti yevalve kunye nomgca osembindini wokutywina (umgca wepleyiti yevalve embindini) ukutenxa; Ukusebenza okuphezulu, yongeza i-eccentricity, oko kukuthi, umgca ophakathi we-valve shaft uphambuke kumgca ophakathi we-valve (umgca ophakathi wepayipi); Injongo ye-eccentricity ephindwe kabini kukususa isibini sokutywinwa komnye nomnye emva kokuba i-valve plate ivulwe kwi-20¡ã, ngaloo ndlela inciphisa i-friction (i-CAM effect). Ivalve yebhabhathane ye-eccentric kwi-double eccentric engasentla kwisiseko sokongeza i-eccentric eyodwa - i-oblique cone, oko kukuthi, i-offset yepleyiti yevalve (umphezulu wokutywina kunye nombhobho othe nkqo wendiza uthambekele i-engile). Oku kwenza i-valve kuluhlu lokuhamba lwe-90¡ã, ukuhlukana okupheleleyo phakathi kwesibini sokutywina, kungekhona nje ukuqinisa umphumo we-CAM, kodwa nokuphelisa ngokupheleleyo ukungqubuzana; Vala i-valve ngexesha elifanayo, xa isibini sokutywinwa sivalwa ngokuthe ngcembe, "impembelelo ye-wedge", kunye ne-torque encinci ukufezekisa eyona nto inzima kakhulu.

Into ebizwa ngokuthi "intsimbi yentsimbi" ibhekisela kwisihlalo sevalve, ukutywina ikhonkco usebenzisa ukuxhathisa ukunxiba, ukuxhathisa ukubola, ukumelana nobushushu obuphezulu be-alloy esemgangathweni eyenziwe; Kwangaxeshanye ukuze ugweme umsesane wokutywina kunye nesihlalo esinzima, isibini sokutywina senzelwe ukuba sibe noqhagamshelwano oluguquguqukayo, oko kukuthi ukubunjwa kwe "elastic metal seal", ukuqinisekisa ukuvala ngokuqinileyo, ukuvuleka okuvulekileyo. Ngesakhiwo "esithathu eccentric", kunye ne "elastic metal seal", iivalve ezinjalo zilula ukusebenza, zihlala zihlala kwaye zitywinwe kakuhle.
Ivalve yebhabhathane yentsimbi eccentric isetyenziswa ngokubanzi kwinkqubo yokufudumeza yomgca ongundoqo kunye nesebe eliphambili. Caliber DN300 okanye ngaphezulu.
Ivalve yebhabhathane yentsimbi yesithathu efakwe ngaphandle ayinalathiso, kodwa isalathiso sofakelo esicetyiswayo ngokubanzi, akufuneki sijikiswe; Umkhombandlela wasekhaya, umva jikelele kunomahluko wangaphambili wenqanaba lokuvuza okanye inqanaba elinye ukuya kumabini oxinzelelo, awunakuguqulwa. Ukuba i-welding kumbhobho othe tye, i-valve kufuneka ivalwe ukukhusela umsesane wokutywina; Kwi-CASE OF VERTICAL pipe welding, i-valve kufuneka ivalwe kwaye amanzi kufuneka afakwe kwi-plate ye-valve ngexesha le-welding ukucima i-slag ye-welding. Xa UFAKILE KWI-HORIZONTAL pipe, kucetyiswa ukuba indawo ye-stem ithotywe ngokuthe tye okanye ngokuthe nkqo ukuze kuqinisekiswe ukuba ukuthwala okuphantsi kucocekile.
1.4.2 Ivalve yebhabhathane yerabha ethambileyo
Ipleyiti yebhabhathane ngokuqhelekileyo ifakwe isinyithi esinamaqhuqhuva, kwaye umsesane wokutywina yirabha. Izinto zokutywina ezisetyenzisiweyo zahlukile, ukusebenza kwahlukile. Ngokuqhelekileyo ezisetyenziswayo zezi: Dingqing irabha, ubushushu obusebenzayo be-12¡æ a +82¡æ; Irabha ye-ethylene propylene, ubushushu obusebenzayo a 45¡æ a +135¡æ; Irabha ye-ethylene propylene ekwaziyo ukumelana nobushushu, ilungele ubushushu be-20¡æ +150¡æ.
Ubunjineli bokufudumala busetyenziswa ngokuqhelekileyo kwisandwich (D371X), i-flange (D341X). I-DN125 ingezantsi i-handle drive ekhoyo (D71, D41X). I-valve ye-butterfly valve incinci kwaye ilula, ivula ngokukhawuleza kwaye ivale, kulula ukuyisebenzisa, kulula ukuyifaka, kulula ukuyigcina, ukutywinwa kakuhle kunye nokulungelelanisa ukusebenza, ukusebenza kweendleko eziphezulu, ngoko kufuneka yamkelwe ngamandla. Ivalve yebhabhathane yetywina ethambileyo ayinalathiso, inokufakwa ngaphandle kwesizathu.
Xa ivalve yebhabhathane ikwindawo yokugcina, ipleyiti yevalve kufuneka ivulwe 4¡ã to 5¡ã. Ukuze ugweme ukunyanzeliswa kwexesha elide kunye nokuguqulwa kwendandatho yokutywina, echaphazela isitywina.
1.5 itshekhi valve
Ikwabizwa ngokuba ivelufa yokukhangela, ucango lokuhamba olunye. Ivalve encedisayo esetyenziswa ngokuqhelekileyo.
Umgaqo osebenzayo: Ngokuxhomekeke kumandla ombane ngokwawo kunye nobunzima bediski, i-valve ivula ngokuzenzekelayo kwaye ivale. Njengoko igama libonisa, umsebenzi walo kukumisa i-medium ukuba ingabuyeli ngasemva. Ngokuqhelekileyo ifakwe kwi-outlet yempompo ukukhusela umonakalo wehamile yamanzi kwimpompo.
Ngokuqhelekileyo isetyenziselwa ubunjineli bokufudumeza luhlobo lokuphakamisa oluthe tye (H41H), uhlobo lwe-valve enye yokujingi (H44H), uhlobo lwebhabhathane lwevalve ephindwe kabini (H77H).
Ivalve yokukhangela iqondise kwaye ayikwazi ukufakwa ngasemva. Iintlobo ezahlukeneyo zeevalve zokutshekisha, ngokwesakhiwo sazo, zinofakelo olusisigxina, akufanele lufakwe ngokungalunganga. Uhlobo lokuphakamisa oluthe tye lunokufakwa kuphela kumbhobho othe tye, kwaye uqinisekise ukuba idiski ye-valve ikwimeko ethe nkqo; Uhlobo olulodwa lwe-disc swing lunokufakwa kuphela kumbhobho othe tye, kwaye uqinisekise ukuba i-disc shaft ikwimo ethe tye; Ibhabhathane levalve ephindwe kabini inokufakwa ngokungenamkhethe.
1.6 umlawuli
Ikwabizwa ngokuba yi-throttle valve. Yivalve eqhelekileyo kwinkqubo yokufudumeza yesibini.

Umgaqo wokusebenza: imilo, ulwakhiwo kunye nevalve yokumisa ngokufanayo. Kuphela isibini sokutywina sihluke, i-disc ye-valve kunye nesihlalo esifana nesithinteli sebhotile ye-thermos kunye nomlomo webhotile, ngokuhamba kwe-valve disc ukuguqula indawo yokuhamba ukulawula ukuhamba. Irula ekwishafu yevalve ibonisa ireyithi yokuqukuqela ehambelanayo.
Umsebenzi: Lungisa ukuhanjiswa okuphakathi kokuhamba phakathi kwemibhobho ukufezekisa ibhalansi ye-thermal.
Ubunjineli bokufudumeza bebukade buthe tye (T41H), kodwa bunezinto ezingalunganga: ukumelana nokuhamba okuphezulu, hayi ukufakwa ngokuthe nkqo. Ke ngenkqubela phambili yetekhnoloji, ivalve yokulinganisa (PH45F) endaweni yokulawula ivalve.
1.7 ivalve yebhalansi
Ivalve yokulawula uhlobo oluphuculweyo. Umjelo wokuhamba uthatha ukuhamba ngokuthe tye, isihlalo sitshintshwa sibe yi-PTFE; Iyakoyisa ukungonakali kokuchasana nokuqukuqela okukhulu kwaye yonyusa iingenelo ezimbini: ukutywinwa okunengqiqo ngakumbi kunye nomsebenzi wokusika.
Isetyenziswe kuthungelwano lwesibini lwesikhululo se-thermal kubunjineli bokufudumeza, kwaye ineempawu ezibalaseleyo zokulawula ukuhamba, ngokukodwa ezifanelekileyo kwinkqubo yokuhamba okuguquguqukayo.
Ikwalathisa kwaye inokunyuswa ngokuthe tye okanye ngokuthe nkqo.
1.8 Ivalve yokulinganisa ngokwakho
Ikwabizwa ngokuba yivalve yokulawula ukuhamba. Umgaqo wayo wokusebenza kukuba: kwi-valve kukho ifilimu yasentwasahlobo kunye ne-rubber eyenziwe ngumatshini, idibene ne-stem. Ukuba IXESHA LOKUPHAMBANA LIYENYUKA, KUYA KUDALA UMTHETHO ONGABALULEKILEYO KUYO, KUBANGELA I-DISC IHAMBE KWINKCAZELO EVALIWEYO UKUNCIPHISA INDLELA YOKUPHUPHA, UKUNCIPHISA IXESHA LOKUHAMBA, KWAYE KUBUYISELWA IXESHA LOKUPHUMELA KWI-SET POINT. Kwaye ngokuchaseneyo. Ngaloo ndlela, izinga lokuhamba emva kokuba i-valve isoloko igcinwe ingatshintshi ukuze ifezekise injongo yokulawula izinga lokuhamba.
Ifakwe kwisixokelelwano sokufudumeza kwindawo yesebe ye-thermal yabantu. Ukuphelisa ngokuzenzekelayo ukungalingani kwe-hydraulic, ukuphucula ukusebenza kwenkqubo, ukufezekisa ukusebenza kwezoqoqosho. I-self-balancing valve directional, musa ukufaka umva.

Ukongeza, kukho ukubola kokusingqongileyo kunye nokukhuselwa kwevalve, ukubola kunye nokukhuselwa kwendawo ephakathi ukuya kwivalve, ubushushu kunye noxinzelelo kunye nokutywinwa kunye neengxaki zokuvuza njalo njalo. Ngamafutshane, nangona i-valve incinci, ulwazi lukhulu, lulindele ukuba siqhubeke nokufunda kunye nokushwankathela.