Isu lokukhetha i-valve! Iqoqo! Uhlobo lwe-valve nereferensi yokukhetha uhlobo lwedrayivu

Isu lokukhetha i-valve! Iqoqo! Uhlobo lwe-valve nereferensi yokukhetha uhlobo lwedrayivu

Ezinhlelweni zamapayipi oketshezi, ama-valve ayizici zokulawula indima yazo eyinhloko iwukuhlukanisa amathuluzi nezinhlelo zamapayipi, 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. Ngoba uhlelo lwamapayipi lokukhetha i-valve efanelekile lubaluleke kakhulu, ngakho-ke, ukuqonda izici ze-valve kanye nokukhethwa kwezinyathelo ze-valve kanye nesisekelo nakho kubaluleke kakhulu.
Ezinhlelweni zamapayipi oketshezi, ama-valve ayizici zokulawula indima yazo eyinhloko iwukuhlukanisa amathuluzi nezinhlelo zamapayipi, 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. Ngoba uhlelo lwamapayipi lokukhetha i-valve efanelekile lubaluleke kakhulu, ngakho-ke, ukuqonda izici ze-valve kanye nokukhethwa kwezinyathelo ze-valve kanye nesisekelo nakho kubaluleke kakhulu.
Ukuhlukaniswa kweama-valve
Okokuqala, i-valve ingahlukaniswa ngezigaba ezimbili:
I-valve ye-othomathikhi yekilasi: incike emaphakathi (uketshezi, igesi) ikhono layo lokusebenzisa i-valve.
Njenge-valve yokuhlola, i-valve yokuphepha, i-valve elawulayo, isicupho, i-valve yokunciphisa ingcindezi, njll.
Uhlobo lwesibili lwe-valve yokushayela: ngosizo lwebhukwana, ugesi, i-hydraulic, i-pneumatic yokulawula isenzo se-valve.
Njenge-valve yesango, i-globe valve, i-throttle valve, i-butterfly valve, i-valve yebhola, i-plug valve nokunye.
Okubili, ngokwezici zesakhiwo, ngokuya ngesiqondiso sengxenye yokuvala ehlobene nokunyakaza kwesihlalo se-valve kungahlukaniswa:
1. Isimo somnyango wokumisa: ingxenye yokuvala ihamba phakathi nendawo yesihlalo;
2. Isimo sesango: ucezu oluvalayo luhamba phakathi nendawo eqondile yesihlalo;
3. Iqhude nebhola: ucezu oluvalayo yi-plunger noma ibhola, elizungeza umugqa ophakathi nendawo;
4. Swing shape: ingxenye yokuvala izungeza shaft ngaphandle kwesihlalo;
5. I-Disc: i-disc yengxenye yokuvala izungeza i-shaft esihlalweni;
6. I-valve ye-slide shape: ucezu lokuvala lushelela ohlangothini oluqondile lwesiteshi.
Okwesithathu, ngokuya ngokusetshenziswa, ngokuya ngokusetshenziswa okuhlukile kwe-valve kungahlukaniswa:
1. Ukuphuka: kusetshenziselwa ukuxhuma noma ukusika imidiya yepayipi, njengevalve yeglobu, i-valve yesango, i-valve yebhola, i-butterfly valve, njll.
2. Hlola: isetshenziselwa ukuvimbela ukubuyela emuva kwemidiya, njenge-valve yokuhlola.
3 ukulungiswa nge: okusetshenziselwa ukulungisa ingcindezi nokugeleza kwe-medium, njenge-valve yokulawula, i-valve yokunciphisa ingcindezi.
4. Ukusabalalisa: kusetshenziselwa ukushintsha isiqondiso sokugeleza kwendawo ephakathi, yokusabalalisa, njengeqhude lezindlela ezintathu, i-valve yokusabalalisa, i-valve yesilayidi, njll.
5. Ivalvu yokuphepha: uma umfutho ophakathi nendawo udlula inani elishiwo, isetshenziselwa ukukhipha okuphakathi okweqile ukuze kuqinisekiswe ukuphepha kwesistimu yamapayipi nezinto zokusebenza, njenge-valve yokuphepha kanye ne-valve yengozi.
6. Okunye ukusetshenziswa okukhethekile: okufana nesicupho, i-valve yokukhipha umoya, i-drain valve, njll.
Okwesine, ngokuya ngemodi yokushayela, ngokuya ngemodi yokushayela ehlukene ingahlukaniswa:
1. Imanuwali: ngosizo lwesondo lesandla, isibambo, i-lever noma i-sprocket, kukhona idrayivu yomuntu, i-torque yokudlulisela ifakwe igiya lezikelemu, igiya namanye amadivaysi okunciphisa.
2. Ugesi: oshayelwa yinjini noma ezinye izinto zikagesi.
3. I-Hydraulic: iqhutshwa (amanzi, amafutha).
4. I-pneumatic: iqhutshwa umoya ocindezelwe.
Ezinhlanu, ngokusho kwengcindezi, ngokusho kwengcindezi ebizwa ngokuthi i-valve ingahlukaniswa:
1. Vacuum valve: *** ingcindezi 0.1Mpa, okungukuthi 760mm mercury high valve, ngokuvamile mm mercury noma mm ikholomu yamanzi ukumela ukucindezela.
2. I-valve yokucindezela okuphansi: i-valve ye-PN≤1.6Mpa (okuhlanganisa i-PN≤1.6MPa valvu yensimbi)
3. I-valve yokucindezela okuphakathi: i-valve ye-PN2.5-6.4mpa ebizwa ngokuthi ingcindezi.
4 i-valve ephezulu yokucindezela: i-valve ye-PN10.0-80.0MPa.
5. I-valve yomfutho ophezulu we-Ultra: ukucindezela okuzisholo PN≥100.0MPa valve.
Okuyisithupha, ngokusho kwezinga lokushisa le-medium, ngokusho kwe-valve yokusebenza medium lokushisa kungahlukaniswa:
1. I-valve evamile: ilungele izinga lokushisa eliphakathi nendawo -40℃ ~ 425℃ valve.
2. I-valve yokushisa ephezulu: ifanele izinga lokushisa eliphakathi kuka-425 ℃ ~ 600 ℃ valve.
3. I-valve ekwazi ukumelana nokushisa: ifanele izinga lokushisa eliphakathi kuka-600℃ noma ngaphezu kwevalvu.
4. I-valve yokushisa ephansi: ifanele ukushisa okuphakathi -150 ℃ ~ -40 ℃ valve.
5.** I-valve yokushisa: ifanele izinga lokushisa eliphakathi nendawo elingaphansi -150℃ valve.
Eziyisikhombisa, ngokusho kobubanzi obujwayelekile, ngokusho kobubanzi be-valve zingahlukaniswa:
1. I-valve yobubanzi obuncane: i-valve engu-DN40mm eyi-diameter.
2. I-valve yobubanzi obumaphakathi: i-valve engu-DN50 ~ 300mm.
3. I-valve yobubanzi obukhulu: i-valve engu-DN350 ~ 1200mm.
4. I-valve yobubanzi obukhulu kakhulu: i-valve yobubanzi obujwayelekile DN≥1400mm valve.
Eyisishiyagalombili, ngokuya ngemodi yokuxhuma kanye nepayipi, ngokusho kwe-valve kanye nemodi yokuxhumeka kwepayipi ingahlukaniswa:
1. I-valve ene-Flanged: umzimba we-valve ufakwe i-flange, futhi ipayipi ixhunywe nge-valve ye-flange.
2. I-valve enezintambo: umzimba we-valve onentambo yangaphakathi noma yangaphandle, kanye nepayipi elinevalve yokuxhuma intambo.
3. Weld i-valve: umzimba we-valve ufakwe emlonyeni wokushisela, futhi i-valve ihlanganiswe nepayipi.
4 i-clamp valve yokuxhuma: umzimba we-valve one-clamp, futhi ipayipi ixhunywe nge-valve yokuqinisa.
5. I-valve yokuxhuma i-sleeve: i-valve ixhunywe nepayipi ngomkhono.
Izici zama-valve
Izici zevalvu ngokuvamile ziyizinhlobo ezimbili, izici zesevisi nezici zesakhiwo.
Izici zokusetshenziswa: inquma ukusetshenziswa okuyinhloko kokusebenza kwe-valve kanye nobubanzi bokusetshenziswa, okuyingxenye yezimpawu zokusebenzisa i-valve yilezi: isigaba se-valve (i-valve yesifunda evaliwe, i-valve elawulayo, i-valve yokuphepha, njll.); Uhlobo lomkhiqizo (i-valve yesango, i-globe valve, i-butterfly valve, i-valve yebhola, njll.); Izingxenye eziyinhloko ze-valve (umzimba we-valve, ikhava, isiqu, i-disc, indawo yokuvala) impahla; Imodi yokudlulisa i-valve, njll.
Izici zesakhiwo: inquma ukufakwa kwe-valve, ukulungiswa, ukugcinwa kanye nezinye izindlela zezinye izici zesakhiwo, eziyingxenye yesakhiwo: ubude besakhiwo se-valve kanye nokuphakama okuphelele, kanye nefomu lokuxhuma ipayipi (uxhumano lwe-flange, intambo uxhumano, uxhumano lwe-hoop, uxhumano lwentambo yangaphandle, uxhumano lwe-welding end, njll.); Ifomu lokuvala uphawu (faka indandatho, indandatho yentambo, indawo engaphezulu, i-spray welding, umzimba womzimba); Ifomu lesakhiwo se-valve stem (induku ejikelezayo, induku yokuphakamisa), njll.
Izinqubo zokukhetha ama-valve nesisekelo
Izinyathelo zokukhetha:
I-1, i-valve ecacile ekusetshenzisweni kwemishini noma idivayisi, inquma izimo zokusebenza ze-valve: indawo esebenzayo, ingcindezi yokusebenza, izinga lokushisa lokusebenza nokunye.
2, thola ububanzi obujwayelekile kanye nendlela yokuxhuma yepayipi exhuma ne-valve: i-flange, intambo, i-welding, njll.
3, nquma indlela yokusebenzisa i-valve: imanuwali, kagesi, i-electromagnetic, i-pneumatic noma i-hydraulic, ukuxhumana kukagesi noma ukuxhumana kwe-electro-hydraulic.
4, ngokusho kwepayipi lokudluliswa kwepayipi, ingcindezi yokusebenza, izinga lokushisa elisebenzayo ukuze kunqunywe igobolondo le-valve elikhethiwe kanye nezingxenye zangaphakathi zezinto ezibonakalayo: insimbi empunga, insimbi ethambile, i-ductile iron, i-carbon steel, i-alloy steel, insimbi engagqwali engamelana ne-asidi, ingxubevange yethusi, njll.
I-5, khetha uhlobo lwe-valve: i-valve yesifunda evaliwe, i-valve elawulayo, i-valve yokuphepha, njll.
6, nquma uhlobo lwe-valve: i-valve yesango, i-valve yeglobe, i-valve yebhola, i-butterfly valve, i-throttle valve, i-valve yokuphepha, i-valve yokunciphisa ingcindezi, i-steam trap, njll.
7, nquma amapharamitha we-valve: kuma-valve azenzakalelayo, ngokuya ngezidingo ezihlukene zokunquma ukumelana nokugeleza okuvunyelwe, umthamo wokuphuma, umfutho ongemuva, njll., bese unquma ububanzi obuncane bepayipi kanye nobubanzi bembobo yesihlalo se-valve. .
8, thola imingcele ekhethiwe yejiyomethri ye-valve: ubude besakhiwo, ifomu lokuxhumeka kwe-flange nosayizi, vula futhi uvale isiqondiso sokuphakama kwe-valve yosayizi, uxhumano losayizi wembobo ye-bolt nenombolo, ubukhulu bomumo we-valve yonke.
9, ukusetshenziswa kolwazi olukhona: ikhathalogi yomkhiqizo we-valve, amasampula womkhiqizo we-valve neminye imikhiqizo efanelekile yama-valve.
Ukukhetha isisekelo se-valve:
Ekuqondeni ukukhethwa kwezinyathelo ze-valve, kodwa futhi kufanele baqonde kabanzi isisekelo sokukhethwa kwama-valve.
1, ukusetshenziswa kwe-valve ekhethiwe, izimo zokusebenza kanye nemodi yokulawula.
I-2, uhlobo lwendawo yokusebenza: ingcindezi yokusebenza, izinga lokushisa lokusebenza, ukusebenza kokugqwala, kungakhathaliseki ukuthi iqukethe izinhlayiya eziqinile, noma ngabe i-medium inobuthi, kungakhathaliseki ukuthi iyavutha, i-explosive medium, i-viscosity ephakathi nokunye.
I-3, izici zoketshezi lwe-valve yezidingo: ukumelana nokugeleza, umthamo wokukhipha, izici zokugeleza, ibanga lokuvala nokunye.
4, usayizi wokufaka kanye nezidingo zosayizi wangaphandle: ububanzi okuzisholo, uxhumano nepayipi nosayizi wokuxhuma, usayizi wangaphandle noma umkhawulo wesisindo.
5. Izidingo ezengeziwe ekuthembekeni, impilo yesevisi kanye nokusebenza kokuvikela ukuqhuma kwemikhiqizo yamavalvu.
Lapho ukhetha amapharamitha, qaphela ukuthi:
Uma i-valve IZOSETSHENZISWA NGENXA YEZINHLOSO zokulawula, LE mingcele eyengeziwe elandelayo KUFANELE IQINISWE: indlela yokusebenza, izidingo eziphezulu KANYE nezincane zokugeleza, ukwehla kokucindezela kokugeleza okujwayelekile, ukwehla kokucindezela ekuvaleni, ukucindezela okukhulu KANYE ne-inlet encane ye-valve.
Ngokusho kokukhethwa okungenhla kwesisekelo se-valve kanye nezinyathelo, ukukhethwa okunengqondo nokulungile kwe-valve kufanele futhi kube ukuqonda okuningiliziwe kwesakhiwo sangaphakathi sezinhlobo ezihlukahlukene zama-valve, ukuze ukwazi ukukhetha ngokukhethekileyo i-valve ukuze wenze ukukhetha okufanele.
Ukulawula okuphelele kwepayipi i-valve. Izingxenye zokuvula nokuvala i-valve zilawula ukugeleza kwemidiya epayipini, ukuma kwesiteshi sokugeleza kwe-valve kwenza i-valve ibe nezici ezithile zokugeleza, okufanele zicatshangelwe lapho kukhethwa i-valve efanelekile ukufakwa ohlelweni lwamapayipi.
Khetha i-valve kufanele ilandele isimiso
1, ukusika kanye nendawo evulekile nge-valve
Isiteshi sokugeleza siyi-valve eqondile, ukumelana nokugeleza kuncane, ngokuvamile kukhethwe njengendlela yokusika nokuvula nge-valve. 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.
2, lawula ukugeleza kwama-valve
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.
3. Ivalvu yokuhlehla nokuphambukisa
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. Amavalvu aphakathi nendawo anezinhlayiya 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.