Kungakanani okwaziyo ngezindinganiso ezivamile ze-valve? Ama-valve asetshenziswa kakhulu ubunjiniyela bokushisa

Kungakanani okwaziyo ngezindinganiso ezivamile ze-valve? Ama-valve asetshenziswa kakhulu ubunjiniyela bokushisa

I-BS 6364 i-valve yokushisa ephansi
I-SHELL SPE 77/200 -50¡æ ngaphansi kwevalvu
I-SHELL SPE 77/209 0 ~ -50¡æ valve
Ama-valve asetshenziswa kakhulu ubunjiniyela bokushisa
Kunezinhlobo eziningi zama-valve kanye nohlu olubanzi lokusebenzisa. Epayipini ngezinye izikhathi kuyimishini eyinhloko, dlala indima yokulawula; Ngezinye izikhathi kuba idivayisi yesibili futhi idlala indima eyisizayo. Uma isetshenziswe ngendlela engafanele, kuzoba khona "ukugijima, ubungozi, ukuconsa, ukuvuza", ukukhanya kunomthelela ekukhiqizeni, izingozi zembangela enkulu. Ngakho ukuqonda nokusebenzisa kahle ama-valve kuyindaba ebaluleke kakhulu.
1 Ukuhlukaniswa kwe-valve
Kunezinhlobo eziningi zama-valve asetshenziswa ezinhlelweni zokufudumeza. Njengama-valve esango, ama-globe valves, ama-ball valves, ama-butterfly valves, ama-valve okuhlola, ama-valve okuphepha, ama-valve alawulayo, ama-bancing valves, ama-self-balancing valves nokunye. Ake sidlule kuzo ngamunye ngamunye.
1.1 ama-valve esango
Ebizwa nangokuthi i-valve yesango, i-valve yesango, iwuhlobo lwevalvu esetshenziswa.

ISIMISO SOKUSEBENZA: Ubuso obuvala isango kanye nesihlalo sevalvu esivala ubuso ubude bushelelezi, bushelelezi, buguquguqukayo, bucutshungulwe baba ipheya elingana kakhulu, evalekayo eqinile. Ngokucindezela phezulu naphansi kwesiqu se-valve, isango lakha ukuqhutshwa nokuvala kwe-medium. Isebenza njengokuvala ipayipi.

Izinzuzo: Ukumelana noketshezi oluphansi; Indawo yokuvala ayiguguleki lapho ivulwe ngokugcwele; Ingasetshenziswa esimweni sokugeleza kwezindlela ezimbili, akukho ukuqondiswa; Iqinile futhi ihlala isikhathi eside; Akufanele kuphela ukwenza ama-valve amancane, kodwa futhi angenza ama-valve amakhulu.
Ukungalungi: ukuphakama okuphezulu; Isikhathi eside sokuvula nokuvala; Kunzima; Kunzima ukulungisa; Uma kuyi-valve yesango elikhulu, ukusebenza ngezandla kuba nzima kakhulu.
I-valve yesango ngokusho kohlobo lwenduku ecacile ehlukene kanye nohlobo lwenduku emnyama; Ngokusho kwesakhiwo sepuleti lesango, uhlobo oluhambisanayo nohlobo lwe-wedge luhlukile; Kukhona isango elilodwa, amaphoyinti amabili esango. Ebunjiniyela bokushisisa, imvamisa isetshenziselwa ukuvula i-valve yesango lenduku eyodwa (Z41H-16C) kanye ne-valve yesango elilodwa lenduku emnyama (Z45T-10), eyokuqala ifakwa ohlangothini oluyinhloko lwesiteshi sokushisa, esokugcina. ifakwe ohlangothini lwesibili lwesiteshi sokushisa. Ngokujwayelekile idlala izindima ezimbili: njengokushintshwa kwemishini eyinhloko; Njengemishini esiza efakwe ngaphambi nangemva kwemishini eyinhloko yokulungiswa.
Lapho i-valve yesango ifakiwe, ungenzi isondo lesandla ngaphansi komugqa ovundlile (inverted), ngaphandle kwalokho okuphakathi kuzogcinwa kukhava ye-valve isikhathi eside, kulula ukugqwala isiqu. Ebunjiniyela bokushisa, i-valve yesango yayivame ukuba amandla amakhulu ku-valve. Manje ngokwamukelwa kwama-valve ovemvane, ama-valve esango athathelwe indawo ama-butterfly valves.
1.2 i-valve yokumisa
Futhi kuwuhlobo lwe-valve olusetshenziswayo. Isilinganiso esijwayelekile singaphansi kuka-100mm. ISEBENZA NJENGEVAVAVA YEsango NGAPHANDLE UKUTHI I-SHUTOFF (DISC) IHAMBA EMVA KOKUPHAKATHI KWESIHLALO. Idlala indima ekuvaleni kwepayipi, ingalungisa cishe ukugeleza.
Izinzuzo: Kulula ukwenza, kulula ukuyinakekela, iqinile futhi ihlala isikhathi eside.
Ukungalungi: Ukugeleza kwemidiya yendlela eyodwa kuphela okuvunyelwe, iqondise lapho ifakiwe. Ukumelana nokugeleza okukhulu, ukuvalwa kahle uphawu.

Ngokusho kwesakhiwo samaphuzu ahlukene uhlobo oluqondile, uhlobo lwe-Angle elungile, ukugeleza okuqondile, uhlobo olulinganiselayo. I-Flange eqondile (J41H) kanye nentambo yangaphakathi eqondile (J11H) ngokuvamile isetshenziswa kwezobunjiniyela. I-valve ye-Globe iqondise, ayikwazi ukucindezelwa emuva. Akufanele iguqulwe.
Emkhiqizweni wethu, impilo, eyedlule evame ukusetshenziswa i-straight-through, i-valve yeglobhu yezinga elincane, manje ishintshwe kancane kancane i-valve yebhola.
1.3 i-valve yebhola
Uma kuqhathaniswa ne-valve yesango kanye ne-globe valve, i-valve yebhola iwuhlobo olusha lwe-valve oluye lwamukelwa kancane kancane. Umgomo wayo wokusebenza uthi: i-spool iyibhola elinembobo, futhi i-spool izungeza u-90¡ã ngesiqu se-valve ukwenza i-valve ivuleke noma ivinjwe. Isebenza njengokuvala ipayipi.
Izinzuzo: Ngaphezu kwezinzuzo ze-valve yesango ne-globe valve, kukhona ivolumu encane, ukubekwa uphawu okuhle (ukuvuza kwe-zero), kulula ukusebenzisa izinzuzo. Okwamanje, isetshenziswa petrochemical, amandla kagesi, amandla enuzi, zezindiza, Aerospace kanye neminye imikhakha.
Ukungalungi: Kunzima ukuyinakekela.
Ama-valve ebhola anezinhlobo ezimbili: uhlobo lwebhola elintantayo kanye nohlobo lwebhola elingashintshi. Ebunjiniyela bokushisa, ezinye izikhundla ezibalulekile, njengamagatsha abalulekile, inani labantu bokuxhunywa kwesiteshi sokushisa, i-DN250 ngezansi, ngokuvamile lithatha ama-valve ebhola angenisiwe. Ihlukile nesakhiwo se-valve yebhola yasekhaya: umzimba we-valve yebhola yasekhaya ngokuvamile izingcezu ezimbili, izingcezu ezintathu, uxhumano lwe-flange; Umzimba we-valve we-valve yebhola yokungenisa uhlanganisiwe, uxhumano oluhlanganisiwe, iphuzu lephutha lincane. Imvelaphi yayo i-Nordic efana neFinland, iDenmark kanye nobunye ubuchwepheshe bokushisa amazwe athuthuke kakhulu. Isibonelo, i-NAVAL, i-VEXVE evela e-Finland, i-DAFOSS evela e-Denmark, njll. Ngenxa yokuvaleka kwayo okuhle, ukuthembeka kokusebenza, kudala ithandwa ngabasebenzisi. Amavalvu ebhola awaqondile futhi angafakwa kunoma iyiphi i-Engeli. Welding ibhola valve ukufakwa ovundlile, valve kumele kuvulwe, gwema Welding lapho ukulimala inhlansi kagesi kanye ibhola surface; Uma IFAKWA KUPHIPHA OKUME UME, IVALI KUFANELE IVULWE UMA ISIXHUMANISI ESINGAPHEZULU SISISHIYIWE FUTHI SIVALWE UMA ISIxhumi ESIPHANSI SISHIYIWE UKUZE UGWEME OKUSHISA OKUPHEZULU NGAPHAKATHI KWEVAVI.
I-valve ye-butterfly engu-1.4
Kuhlelo lokushisa, okwamanje kusetshenziswa, izinhlobo eziningi ze-valve.
Umgomo wokusebenza: I-disc iyidiski, ngokuzungeza kwesiqu, i-disc ebangeni lesihlalo sokujikeleza okungu-90¡æ, ukubona ukushintshwa kwevalvu. Isebenza njengokuvala ipayipi.
Ingakwazi futhi ukulungisa izinga lokugeleza.
Izinzuzo: Isakhiwo esilula, umthamo okhanyayo, ukusebenza okulula, ukubekwa uphawu okuhle.
Ukungalungi: lapho ivuliwe ngokugcwele, ipuleti ye-valve (indandatho ye-seal) iguguleka yi-medium.
Ebunjiniyela bokushisisa, i-valve uvemvane ine-valve ye-butterfly yensimbi ene-eccentric emithathu, i-rubber soft seal butterfly valve.
1.4.1 I-valve uvemvane yensimbi ene-eccentric kathathu
Okubizwa ngokuthi "i-eccentricity emithathu" ibhekisela ku-valve shaft, i-valve plate endaweni ehlobene ne-valve ye-offset. I-valve uvemvane evamile i-eccentric, okungukuthi, umugqa omaphakathi we-valve shaft kanye nomugqa ophakathi nendawo wokuvala uphawu (umugqa wepuleti eliphakathi nendawo) ukuchezuka; Ukusebenza okuphezulu, engeza i-eccentricity, okungukuthi, umugqa ophakathi we-valve shaft uphuma emgqeni ophakathi we-valve (umugqa ophakathi wepayipi); Inhloso ye-eccentricity ekabili iwukuba ukususa ipheya yophawu kusuka komunye nomunye ngemva kokuvulwa kwepuleti le-valve libe ngu-20¡ã, ngaleyo ndlela kuncishiswe ukungqubuzana (umphumela we-CAM). I-valve yamavemvane ama-eccentric ku-eccentric ephindwe kabili engenhla ngesisekelo sokwengeza i-eccentric ehlukile - ikhoni etshekile, okungukuthi, i-offset ye-valve plate (indawo yokuvala kanye nendiza eqondile yepayipi itshekisa i-Engeli). Lokhu kwenza i-valve ebangeni lokuhamba le-90¡ã, ukuhlukana okuphelele phakathi kwe-pair yokuvala uphawu, hhayi nje ukuqinisa umphumela we-CAM, kodwa futhi kuqede ngokuphelele ukungqubuzana; Vala i-valve ngesikhathi esifanayo, lapho i-seal pair ivala kancane kancane, "umphumela we-wedge", nge-torque encane ukuze uzuze ukucinywa kakhulu.

Okubizwa ngokuthi "i-metal seal" kubhekisela esihlalweni se-valve, indandatho yokuvala kusetshenziswa ukumelana nokugqoka, ukumelana nokugqwala, ukumelana nokushisa okuphezulu kwe-alloy yekhwalithi eyenziwe; Ngesikhathi esifanayo ukuze ugweme indandatho yokuvala kanye nesihlalo esiqinile, umbhangqwana ovala uphawu uklanyelwe ukuxhumana oguquguqukayo, okungukuthi ukwakheka "kwe-elastic metal seal", ukuze kuqinisekiswe ukuvala ngokuqinile, okuvulekile okungenayo i-frictionless. NGESIKHATHI "se-eccentric ezintathu", sihlanganiswe "ne-elastic metal seal", ama-valve anjalo asebenza kalula, ahlala isikhathi eside futhi avalwe kahle.
I-valve ye-butterfly ye-eccentric metal seal ivame ukusetshenziswa ohlelweni lokushisa lomugqa oyinhloko kanye negatsha elikhulu. I-Caliber DN300 noma ngaphezulu.
I-valve yevemvane yensimbi engenisiwe emithathu ayinakho ukuqondiswa, kodwa isiqondiso sokufakwa ngokuvamile esinconywayo, akufanele sibuyiselwe emuva; Ukuqondisa kwasekhaya, ukuhlehla okuvamile kunomehluko oya phambili weleveli yokuvuza noma ileveli yengcindezi eyodwa kuya kwamabili, akukwazi ukuhlehliswa. Uma i-welding epayipi evundlile, i-valve kufanele ivalwe ukuze ivikele indandatho yophawu; EMZINI WE-VERTICAL pipe welding, i-valve kufanele ivalwe futhi amanzi kufanele engezwe ku-valve plate ngesikhathi sokushisela ukuze kucishwe i-slag yokushisela. Uma IFAKWE EMBHAYIBHELINI OVUNDELELWE, kunconywa ukuthi indawo yesiqu ithambekele ngokuvundlile noma iqonde ukuze kuqinisekiswe ukuthi ukuthwala okungaphansi kuhlanzekile.
1.4.2 I-valve uvemvane oluthambile lwerabha
Ipuleti uvemvane ngokuvamile plated nodular cast iron, futhi indandatho uphawu injoloba. Izinto zokuvala ezisetshenzisiwe zihlukile, ukusebenza kuhlukile. Okuvame ukusetshenziswa yilezi: Irabha ye-Dingqing, izinga lokushisa elisebenzayo le-12¡æ a +82¡æ; Irabha ye-ethylene propylene, izinga lokushisa elisebenzayo libe ngu-45¡æ a +135¡æ; Irabha ye-ethylene propylene ekwazi ukumelana nokushisa, ifanele izinga lokushisa elingu-20¡æ +150¡æ.
Ubunjiniyela bokushisa obuvame ukusetshenziswa kwisemishi (D371X), i-flange (D341X). I-DN125 ngezansi kwedrayivu yesibambo etholakalayo (D71, D41X). I-valve ye-butterfly eyi-wafer incane futhi ilula, ivula ngokushesha futhi ivalwe, kulula ukuyisebenzisa, kulula ukuyifaka, kulula ukuyigcina, ukubeka uphawu okuhle nokusebenza kahle, ukusebenza kwezindleko eziphezulu, ngakho kufanele yamukelwe ngamandla. I-valve yevemvane ye-soft seal ayinakho ukuqondiswa, ingafakwa ngokuzenzakalelayo.
Lapho i-valve uvemvane igcinwe, ipuleti levalvu kufanele livulwe 4¡ã kuya ku-5¡ã. Ukuze ugweme ukucindezelwa kwesikhathi eside kanye nokuguqulwa kwendandatho yokubeka uphawu, okuthinta uphawu.
1.5 i-valve yokuhlola
Ebizwa nangokuthi i-valve yokuhlola, umnyango wokugeleza owodwa. I-valve yokusiza evame ukusetshenziswa.
Isimiso sokusebenza: Kuye ngamandla oketshezi ngokwawo kanye nesisindo sediski, i-valve ivula ngokuzenzakalelayo futhi ivale. Njengoba igama liphakamisa, umsebenzi wayo ukumisa i-medium ukuthi ingabuyeli emuva. Ivamise ukufakwa endaweni yepompo ukuvimbela ukulimala kwesando samanzi epompo.
Okuvame ukusetshenziswa kubunjiniyela bokushisisa uhlobo lokuphakamisa oluvundlile (H41H), uhlobo lokushwibeka kwe-valve eyodwa (H44H), uhlobo lovemvane oluphindwe kabili (H77H).
I-valve yokuhlola iqondise futhi ayikwazi ukufakwa emuva. Izinhlobo ezahlukene zama-valve okuhlola, ngokusho kwesakhiwo sawo, zinokufakwa okuhleliwe, akufanele zifakwe ngokungalungile. Uhlobo lokuphakamisa oluvundlile lungafakwa kuphela epayipini elivundlile, futhi uqinisekise ukuthi idiski ye-valve isesimweni sokuma; Uhlobo lokushwibeka kwediski olulodwa lungafakwa kuphela epayipini elivundlile, futhi kuqinisekiswe ukuthi i-disc shaft isesimweni esivundlile; I-butterfly ye-valve ephindwe kabili ingafakwa ngokuzenzakalelayo.
1.6 umlawuli
Ibizwa nangokuthi i-throttle valve. Kuyi-valve evamile yesistimu yokushisa yesibili.

Umgomo wokusebenza: umumo, ukwakheka kanye ne-valve yokumisa kuyafana. Ipheya lokuvala kuphela elihlukile, i-disc ye-valve nesihlalo sifana nesivalo sebhodlela le-thermos nomlomo webhodlela, ngokusebenzisa ukunyakaza kwe-valve disc ukushintsha indawo yokugeleza ukuze ulawule ukugeleza. Irula ku-valve shaft ikhombisa izinga lokugeleza elihambisanayo.
Umsebenzi: Lungisa ukugeleza kokugeleza okuphakathi phakathi kwamapayipi ukuze kuzuzwe ibhalansi yokushisa.
Ubunjiniyela bokushisisa bebukade buqondile (T41H), kodwa bunobubi obuthile: ukumelana nokugeleza okuphezulu, hhayi ukufakwa okuqondile. Ngakho ngokuqhubeka kobuchwepheshe, i-valve yebhalansi (PH45F) esikhundleni se-valve yokulawula.
I-valve yebhalansi engu-1.7
I-valve yokulawula yohlobo oluthuthukisiwe. Isiteshi sokugeleza sithatha ukugeleza okuqondile, isihlalo sishintshwa sibe yi-PTFE; Inqoba ububi bokumelana nokugeleza okukhulu futhi inyusa izinzuzo ezimbili: ukuvala uphawu okunengqondo nomsebenzi wokusika.
Isetshenziswa kunethiwekhi yesibili yesiteshi esishisayo ekushiseni ubunjiniyela, futhi inezici ezinhle kakhulu zokulawula ukugeleza, ikakhulukazi ezifanele uhlelo lokugeleza okuguquguqukayo.
Iqondile futhi ingakhwezwa ivundlile noma iqonde phezulu.
1.8 I-valve yokulinganisa ngokwakho
Ibizwa nangokuthi i-flow control valve. Umgomo wayo wokusebenza uthi: ku-valve kukhona ifilimu yasentwasahlobo nenjoloba eyakhiwe ngomshini, ixhunywe nesiqu. Uma izinga lokugeleza likhuphuka, KUZODALWA AMANDLA ENGAKALINGANISI KUYO, OKUDALA I-DISC UKUTHI IHAMBE ESIQINISEKISO ESIVALIWEYO UKUZE YEHLISE INDAWO YOKUTHOLAKALA, YEHLISE ISILINGANISO, FUTHI IBUYISELE IZINGA LOKUTHUTHA ESIKHATHINI ESISEKELWE. Futhi ngokuphambene. Ngakho, izinga lokugeleza ngemva kwe-valve lihlala ligcinwa lingashintshiwe ukuze kuzuzwe injongo yokulawula izinga lokugeleza.
Kufakwe kusistimu yokushisisa endaweni yegatsha labantu abashisayo. Ukuqedwa okuzenzakalelayo kokungalingani kwe-hydraulic, ukuthuthukisa ukusebenza kahle kwesistimu, ukufeza ukusebenza kwezomnotho. Ukuqondisa kwe-valve yokulinganisa ngokwakho, ungafaki ukuhlehla.

Ngaphezu kwalokho, kukhona ukugqwala kwemvelo kanye nokuvikelwa kwe-valve, ukugqwala nokuvikelwa kwe-medium kuya ku-valve, izinga lokushisa nokucindezela kanye nezinkinga zokuvala nokuvuza nokunye. Ngamafuphi, nakuba i-valve incane, ulwazi lukhulu, lulindele ukuthi siqhubeke nokufunda nokufingqa.