Ibhukwana Lokufaka, Lokusebenza Nokunakekela - Amaphayiphu Butterfly Kagesi Amathathu

1. Ububanzi

Incazelo ifaka Ububanzi obujwayelekile i-NPS 10 ~ NPS48, i-Normal Pressure Class (150LB, 300LB) evundlile kathathu eccentric metal seal butterfly valve.

2. Incazelo Yomkhiqizo

2.1 Izidingo zobuchwepheshe

2.1.1 Izinga Lokuklama Nokukhiqiza: API 609

2.1.2 Izinga lokugcina lokugcina lokugcina: ASME B16.5

2.1.3 Izinga lobuso nobuso nobuso: API609

2.1.4 Izinga lebanga lokushisa kwengcindezi: ASME B16.34

2.1.5 Ukuhlolwa nokuhlolwa (kufaka phakathi ukuhlolwa kwe-hydraulic): i-API 598

2.2 Umkhiqizo Jikelele

Iveluvethi kavemvane ephindwe kathathu enokufakwa uphawu kwensimbi kabili ingenye yemikhiqizo emikhulu ye-BVMC, futhi isetshenziswa kakhulu ekusetshenzisweni kwensimbi, embonini ekhanyayo, kugesi, kuphethiloli, kusiteshi segesi nakweminye imikhakha.

3. Izici kanye Nokusetshenziswa

Isakhiwo sihleli kathathu futhi sakhiwe ngensimbi. Inokusebenza okuhle kokufaka uphawu ngaphansi kwesimo sokushisa kwegumbi kanye / noma ukushisa okuphezulu. Ivolumu elincane, isisindo esilula, ukuvula nokuvala impilo esebenza kalula futhi ende yizinzuzo zayo ezisobala uma kuqhathaniswa nama-valve esango noma ama-valve womhlaba. It is kabanzi metallurgy, umkhakha ukukhanya, amandla kagesi, petrochemical, amalahle igesi umzila kanye neminye imikhakha, ukusetshenziswa kwezokuphepha onokwethenjelwa, i-valve ukukhetha kahle amabhizinisi zanamuhla.

4．Isakhiwo

4.1 Kathathu eccentric metal ukubekwa uphawu uvemvane valve njengoba kukhonjisiwe kuMdwebo 1

Umdwebo 1 I-valve yesembozo se-butterfly esinezinsimbi ezintathu

5. Isimiso sokubekwa uphawu:

Umdwebo 2 I-valve evamile yokuvala uphawu yensimbi ephindwe kathathu ngumkhiqizo ojwayelekile we-BVMC, njengoba kukhonjisiwe kumdwebo 2.

(a) Izici Zesakhiwo: Isikhungo sokuzungezisa kwepuleti levemvane (okusho ukuthi isikhungo se-valve) ukwenza ubandlululo A ngophawu lokuvaleka kwepuleti levemvane, kanye nokuchema B ngomugqa ophakathi nendawo womzimba we-valve. Futhi i-Angle createdbe yenziwa phakathi komugqa ophakathi wobuso wophawu nomzimba wesihlalo (okusho umugqa we-axial womzimba)

(b) Isimiso sokubekwa uphawu: Kususelwa ku-valve eccentric butterfly ephindwe kabili, i-valve ka-eccentric butterfly ephindwe kathathu yathuthukisa i-Angleβ phakathi kwezindawo eziphakathi kwesihlalo nomzimba. Umphumela wokuchema njengoba ukhonjisiwe esigabeni sesi-3 esinqamulayo. Lapho umphakeli we-butterfly wokuvala uphawu kathathu usesimweni esivulekile ngokuphelele, indawo yokufaka uphawu lwepuleti levemvane izokwehlukaniswa ngokuphelele nendawo yokubekwa uphawu kwesihlalo se-valve. Futhi lapho kuzokwakhiwa imvume phakathi kwephiko levemvane lokufaka ubuso nobuso bokubopha umzimba ngokufana nevelufa kavemvane eccentric. Njengoba kukhonjisiwe kumfanekiso 4, ngenxa yokwakheka kwe-β angle, ama-anglesβ1and β2 azokwakha phakathi komugqa olengayo wethrekhi yokujikeleza kwe-disc nendawo yokubekwa kwesihlalo se-valve. Lapho uvula futhi uvala i-disc, ipuleti lokumaka ipuleti levemvane lizohlukana kancane futhi lihlangane, bese kuqeda ngokuphelele ukugqokwa kwemishini nokuhuzuka. Lapho ikhefu livula i-valve, indawo yokuvala i-disc izohlukana khona manjalo nesihlalo se-valve. Futhi kuphela ngomzuzu ovaliwe ngokuphelele, idiski lizohlangana esihlalweni. Njengoba kukhonjisiwe ku-figure4, ngenxa yokwakheka kwe-angle β1and β2, lapho ivalvevemvane ivaliwe, ingcindezi yophawu ikhiqizwa yi-valve shaft drive torque isizukulwane hhayi ukuguquguquka kwesihlalo sevemvane sevemvane. Ayikwazi ukuqeda kuphela ukuthi kungenzeka ukunciphisa ukuncipha komphumela nokwehluleka okubangelwa ukuguga kwempahla, ukugeleza okubandayo, ukuguquguquka kokuqina kwezinto, futhi kungashintshwa ngokukhululeka nge-torque yedrayivu, ukuze ukusebenza kokuvala uphawu kwe-valve ka-butterfly okusebenza kathathu nempilo yokusebenza kube kakhulu kuthuthukisiwe.

Umdwebo 2 ivalveli yensimbi enezinhlangothi ezimbili ezimbozwe kabili yensimbi

Umdwebo 3 Umdwebo we-eccentric double metal evalin butterfly valve endaweni evulekile

Umdwebo 4 Umdwebo wevalvethi yensimbi ephindwe kabili yensimbi ebekwa uphawu esondweni

6.1 Ukufaka

6.1.1 Ukuhlola ngokucophelela okuqukethwe ku-valve nameplate ngaphambi kokufaka, qinisekisa ukuthi uhlobo, usayizi, izinto zokuhlala kanye nokushisa kwe-valve kuzohambisana nomsebenzi wepayipi.

I-6.1.2 Ihlola okungcono wonke amabhawodi ekuxhumaneni ngaphambi kokufakwa, iqinisekisa ukuthi iyaqina ngokulinganayo. Futhi ngibheka ukuthi ukuminyaniswa nokufakwa uphawu kokupakisha.

I-6.1.3 Ukuhlola i-valve ngamamaki wokugeleza, njengokukhombisa ukuhanjiswa kokugeleza,

Futhi ukufaka i-valve kufanele kuhambisane nezinhlinzeko zokugeleza.

6.1.4 Ipayipi kufanele lihlanzwe futhi lisuswe owoyela balo, i-welding slag nokunye ukungcola ngaphambi kokufakwa.

I-6.1.5 Valve kufanele ikhishwe ngobumnene, ivimbele ukuphonswa kwayo nokuphonsa phansi.

6.1.6 Kufanele sisuse ikhava yothuli ekugcineni kwe-valve lapho sifaka i-valve.

6.1.7 Lapho ufaka i-valve, ubukhulu be-flange gasket bungaphezulu kuka-2 mm futhi ugu lolukhuni lungaphezu kwama-70 PTFE noma i-gasket egoqekayo, i-flange yamabhawodi wokuxhuma kufanele aqiniswe ngokulandelana.

6.1.8 Ukuyekelela kokupakisha kungadalwa ukushintsha kokudlidliza nokushisa kwezokuthutha, nokuqinisa amantongomane endlala yokupakisha uma kunokuvuza ekuvaleni isiqu ngemuva kokufakwa.

6.1.9 Ngaphambi kokufaka i-valve, indawo ye-pneumatic actuator kufanele isethwe, ukuze kwenziwe umsebenzi wokulungisa nokugcinwa kungalindelekile. Futhi i-actuator kufanele ihlolwe futhi ihlolwe ngaphambi kokufaka ekukhiqizeni.

6.1.10 Ukuhlola okungenayo kufanele kube ngokwamazinga afanele. Uma le ndlela ingalungile noma ibangelwa umuntu, i-BVMC Company ngeke ithathe noma yimuphi umthwalo.

6.2 Isitoreji kanye Mubuso  

6.2.1 Imikhawulo kufanele imbozwe ngothuli ekamelweni elomile nelinomoya, ukuqinisekisa ubumsulwa bomgodi we-valve.

6.2.2 Uma i-valve yesitoreji sesikhathi eside isetshenziswa kabusha, ukupakisha kufanele kuhlolwe ukuthi akuvumelekile yini bese kugcwaliswa uwoyela wokuthambisa ezingxenyeni ezijikelezayo.

6.2.3 Ama-valve kufanele asetshenziswe futhi agcinwe esikhathini sewaranti (ngokwesivumelwano), kufaka phakathi ukukhishwa kwe-gasket, ukupakisha njll.

6.2.4 Izimo zokusebenza kwe-valve kufanele zigcine zihlanzekile, ngoba zinganweba impilo yenkonzo yayo.

6.2.5 Amaphayiphu kudingeka ahlole futhi anakekele njalo ekusebenzeni ukuvikela ekumelaneni nokugqwala futhi aqinisekise ukuthi okokusebenza kusesimweni esifanele.

Uma le ndlela ingamanzi noma uwoyela, kuphakanyiswa ukuthi ama-valve kufanele ahlolwe futhi agcinwe njalo ezinyangeni ezintathu. Futhi uma okuphakathi kukonakalisa, kuphakanyiswa ukuthi wonke ama-valve noma ingxenye yama-valve kufanele ihlolwe futhi inakekelwe njalo ngenyanga.

I-6.2.6 Isihlungi se-air-relief valve-pressure valve kufanele siphume njalo, ukukhishwa kokungcola, kushintshe into yokuhlunga. Ukugcina umoya uhlanzekile futhi womile ukugwema ukungcoliswa kwezakhi zomoya, imbangela yokwehluleka. (Ukubona “umshini womoya osebenzisa umoyaukusebenza imfundo“)

6.2.7 Isilinda, izingxenye zomoya kanye namapayipi kufanele kuhlolwe ngokucophelela futhi njalo ukuze vimbela ukuvuza kwegesi (Ukubona "i-pneumatic actuator ukusebenza imfundo“)

6.2.8 Lapho kulungiswa ama-valve kuzophinda kugudle izingxenye, kususe umzimba wangaphandle, amabala nendawo egqwalile. Ukufaka esikhundleni sama-gaskets alimele nokupakisha, indawo yokufaka uphawu kufanele ilungiswe. Ukuhlolwa kwe-Hydraulic kufanele kwenziwe futhi ngemuva kokulungiswa, abaqeqeshiwe bangasebenzisa.

Ingxenye yomsebenzi we-valve (njengesiqu nophawu lokupakisha) kufanele ihlale ihlanzekile futhi isule uthuli ukuvikela ukubola nokugqwala.

6.2.10 Uma kunokuvuza lapho kupakwa futhi amantongomane okupakisha indlala kufanele aqiniswe ngqo noma aguqule ukupakisha kuye ngesimo. Kepha akuvunyelwe ukushintsha ukupakisha ngengcindezi.

6.2.11 Uma ukuvuza kwe-valve kungaxazululwa ku-inthanethi noma kwezinye izinkinga zokusebenza, lapho kukhishwa i-valve kufanele kube ngokwezinyathelo ezilandelayo:

1. Naka ukuphepha: ngokuphepha kwakho, ukususa i-valve epayipini kuqala kufanele kuqonde ukuthi yini umugqa wepayipi. Kufanele ugqoke imishini yokuvikela abasebenzi ukuvimbela okuphakathi ngaphakathi kokulimala kwepayipi. Ngasikhathi sinye ukuqinisekisa ukuthi ingcindezi ephakathi kwamapayipi isivele ikhona. I-valve kufanele ivalwe ngokuphelele ngaphambi kokukhipha i-valve.
2. Ukususa idivayisi yomoya (kufaka phakathi umkhono wokuxhuma, Ukubona “i-actuator yomoya ukusebenza imfundo") Kufanele aqaphele ukusebenza ukuze agweme ukulimala okuvela esiqwini nasedivayisini yomoya;
3. Indandatho yokufaka uphawu yediski nesihlalo kufanele ihlolwe ukuthi ayinakho yini ukuklwebheka lapho ivalvevemvane ivulekile. Uma kunokususwa okuncane kwesihlalo, kungasebenzisa indwangu ye-emery noma uwoyela ekuvalweni komhlaba ukuguqulwa. Uma kuvela ukuklwebheka okujulile okumbalwa, kufanele kuthathwe izinyathelo ezifanele ukulungisa, i-valve butterfly ingayisebenzisa ngemuva kokuhlolwa okufanelekile.
4. Uma ukupakisha kwe-stem kuvuza, indlala yokupakisha kufanele isuse, bese ibheka isiqu bese ipakisha ngenhla, uma isiqu sinokunwaya, i-valve kufanele ihlangane ngemuva kokulungiswa. uma ukupakisha kulimele, ukupakisha kufanele kushintshwe.
5. Uma isilinda sinezinkinga, kufanele sihlole izingxenye zomoya, siqinisekise ukuthi ukugeleza kwendlela yegesi nomfutho womoya, i-valve eguqula amandla kagesi ijwayelekile. Ukubona “umshayeli womoyaukusebenza imfundo“)
6. Lapho igesi ifakwa kudivayisi yomoya, iqinisekisa ukuthi isilinda ayikho ngaphakathi nangaphandle ayinakho ukuvuza. Uma umoya wensimbi womoya ulimele kungaholela ekwehliseni i-torque yokusebenza kwengcindezi, ukuze ungahlangabezani nokuvulwa nokuvalwa kokuvalwa kwevemvane, kuzonaka ukuhlolwa okujwayelekile nokuphindisela izingxenye.

I-pneumatic butterfly valve ezinye izingxenye ngokuvamile azilungisi. Uma umonakalo ubucayi, kufanele uxhumane nefektri noma uthumele kulondolozo lwefektri.

6.2.12 Isivivinyo

I-valve kuzoba ukuhlolwa kwengcindezi ngemuva kokuthi i-valve isilungise isivivinyo ngokuya ngamazinga afanele.

6.3 Imiyalo yokusebenza

6.3.1 I-valve esebenza nge-pneumatic nge-cylinder driver driver izokwenziwa i-disc ijikeleziswe ngo-90 ° ukuvula noma ukuvala i-valve.

6.3.2 Izikhombisi-ndlela ezivaliwe ze-pneumatic actuated butterfly valve zizomakwa ngesikhombi sesikhundla kudivayisi yomoya.

6.3.3 Ivemvane ye-Butterfly ene-truncation nokulungisa isenzo ingasetshenziswa njengokushintsha uketshezi nokulawula ukugeleza. Imvamisa ayivunyelwe ngaphezu kwengcindezi - isimo somngcele wokushisa noma ukucindezela okushintshanayo okuvamile nezimo zokushisa

6.3.4 Iveluvane le-Butterfly linamandla okumelana nokwehluka kwengcindezi enkulu, ungavumeli i-valve yovemvane ivulwe ngaphansi komehluko wengcindezi enkulu noma umahluko omkhulu wengcindezi iyaqhubeka nokuzungeza. Ngaphandle kwalokho kungadala umonakalo, noma ingozi engathi sína yokuphepha nokulahleka kwempahla.

6.3.5 Amaphayiphu womoya asebenzisa njalo, futhi ukusebenza kokunyakaza nezimo zokuthambisa kufanele zihlolwe njalo.

6.3.6 Idivayisi yomoya iwashi iwashi levemvane liyavalwa, lijike ngewashi ukuze ivalveve uvemvane ivuleke.

6.3.7 Usebenzisa umphini wovemvane womoya kufanele unake umoya uhlanzekile, ingcindezi yokuphakela umoya ingu-0.4 ~ 0.7 Mpa. Ukugcina izindima zomoya zivulekile, akuvunyelwe ukuvimba ukungena komoya nokugeleza komoya. Ngaphambi kokusebenza, idinga ukungena emoyeni ocindezelwe ukubona ukuthi ukunyakaza kweveluvane yomoya womoya kuvamile. naka i-pneumatic butterfly valve evulekile noma evaliwe, noma ngabe i-disc isendaweni evulekile ngokuphelele noma evaliwe. Ukunaka isikhundla se-valve kanye nendawo yesilinda kuyavumelana.

6.3.8 Isakhiwo se-pneumatic actuators crank ingalo iyinhloko engunxande, esetshenziselwa idivaysi yezandla. Lapho ingozi yenzeka, ingasusa ipayipi lokuhambisa umoya ngqo ngesiwunjana ukuthi umsebenzi wezandla ungafezeka.

7. Amaphutha, izizathu nesisombululo (Bheka iThebhu 1)

Ithebhu 1 Izinkinga ezingenzeka, izimbangela nesisombululo

Qaphela: Abasebenzi besondlo bayoba nolwazi olufanele nesipiliyoni.