Umzimba weNtsimbi owenziweyo, iValve yeBhola yoxinzelelo oluPhezulu lweoyile, igesi kunye nemibhobho yekhemikhali

Iza neziphelo zeflange eziqhelekileyo. Yiyo loo nto iinjineli kunye nabaphathi bezityalo bahlala beyikhethela imigca yoxinzelelo oluphezulu - kulula ukuyifaka kwindawo, kulula ukuyigcina, kwaye i-flange edibeneyo ibamba itywina elithembekileyo.

Iimpawu eziphambili

Ukwakhiwa koMzimba weNsimbi owenziweyo

Umzimba wethu wevalve yebhola eyenziwe ngeflanged uveliswa kwibillet yentsimbi eqinileyo ngeforging, hayi ukuphosa isanti. Inkqubo yokugaya ilungisa i-internal grain structure yentsimbi, isusa iziphene eziqhelekileyo zokuphosa ezifana ne-porosity, i-shrinkage cavities kunye nokufakwa kwesanti. Oku kunika umzimba wevalve amandla aphezulu kakhulu, ukuxhathisa impembelelo kunye nokumelana nokothuka koxinzelelo.

Iivalvu zentsimbi zisebenza kakuhle kwimibhobho eqhelekileyo, ephantsi komngcipheko. Kodwa kuxinzelelo oluphezulu, umthwalo we-cyclic kunye nenkonzo ebaluleke kakhulu yokhuseleko, ukwakhiwa komgunyathi kunciphisa kakhulu umngcipheko wokuqhekeka komzimba kunye nokuvuza okuyingozi. Yonke inkcaso eluhlaza inokulandelwa ngamanani obushushu, kunye nezatifikethi zovavanyo olupheleleyo (MTC) ziyafumaneka xa uceliwe.

Ngawaphi amashishini kunye namajelo eendaba alungele le valve yebhola eyenziwe ngeflanged?

Le valve yebhola ephothiweyo yamkelwa ngokubanzi kuyo yonke ioyile kunye negesi, ukuhanjiswa kwerhasi yendalo, ukusetyenzwa kweekhemikhali, izixhobo zokucoca, ukuvelisa umbane, imibhobho encedisayo ekude nonxweme, inkqubo yokutofa ngamanzi anoxinzelelo oluphezulu kunye nezityalo zesichumisi.

Isebenza ngokuthembekileyo kulwelo olucocekileyo, umoya ocinezelweyo, igesi yendalo, initrogen, i-hydrocarbon kunye noluhlu olubanzi lwenkqubo yolwelo olungagxuphulekiyo. Ngokhetho olufanelekileyo lwe-trim kunye nesihlalo, inokuphatha imidiya enobungozi. Yenzelwe inkonzo yokwahlula, ilungele imibhobho efuna ukuvalwa okufanelekileyo ngexesha lolondolozo lwesiqhelo okanye ukuvalwa kongxamiseko.

Uyilo loQhagamshelwano oluneFlanged

Uqhagamshelo oluphothiweyo lolona khetho luphambili kwiiprojekthi zemizi-mveliso enzima. Umgangatho weflange ubuso (RF / RTJ ozikhethelayo) uhambelana nemigangatho ye-ASME B16.5 okanye i-GB yeflange. Ngexesha lofakelo, abasebenzi besiza banokulungelelanisa imingxuma ye-bolt ngokulula, babeke iigaskets kwaye baqinise iibholithi ngaphandle kwezixhobo ezikhethekileyo zokuwelda.

Inzuzo enkulu ifika ngexesha lokulungiswa: unako ukukhupha i-valve kwipayipi ngokukhawuleza ngaphandle kokusika umbhobho. Oku kunciphisa kakhulu ixesha lokuphumla xa kufuneka uhlole izinto zangaphakathi, utshintshe izihlalo okanye utshintshe ivalve yonke. Xa kuthelekiswa neziphelo ezinemisonto, amalunga aneflanged axhasa amanqanaba aphezulu oxinzelelo; xa kuthelekiswa neziphelo ezidityanisiweyo, yenza i-disassembly ephindaphindekayo.

Ngaba le valve yebhola engumqhagi ingamelana nobushushu obuqhelekileyo kunye noxinzelelo lokutshintsha?

Imibhobho yemizi-mveliso ihlala ibona ujingi kuxinzelelo lokusebenza kunye nobushushu ngexesha lokuqalisa, ukuvalwa kunye notshintsho lomthwalo. Umzimba wensimbi owenziweyo ugcina ukusebenza okuzinzileyo komatshini phantsi kwezi meko zebhayisikile.

Sidibanisa iphakheji yokutywina kwimvulophu yakho esebenzayo. I-PTFE, i-RPTFE kunye ne-metal-to-metal hard seal iinketho ziyafumaneka. Izihlalo ezithambileyo zibonelela ngeqamza elinguziro-elivuzayo ukuba livale nca kwinkonzo ecocekileyo; izihlalo zentsimbi zifanele ubushushu obuphezulu okanye iimfuno ezikhuselekileyo emlilweni. Uyilo lokupakisha isikhondo lulawula ukukhutshwa kwenkunkuma, ukuhlangabezana neemfuno eziqhelekileyo zokusingqongileyo kwinkonzo ye-hydrocarbon.

UKhetho lweMathiriyeli kuMzimba kunye nokuNcitshiswa kwaNgaphakathi

Sigcina ipotifoliyo yemathiriyeli ebanzi ukuze ihambelane nomhlwa ophakathi kunye neemfuno zobushushu:

-Intsimbi yeCarbon: A105 / A105N, ilungele irhasi engoxinzelelo oluphezulu kunye neoyile.

-Austenitic steel stainless: F304, F316L, kulwelo oludlekayo jikelele

I-Duplex kunye ne-super duplex: F51, F53, F57, NS2609, NS2607 yamanzi olwandle, i-brine kunye ne-acidic media equkethe i-H₂S

Sinokwenza ibhola, isiqu kunye nezixhobo zokuhlala. Yabelana nje ngexabiso lakho eliphakathi, le-pH kunye noluhlu lobushushu obusebenzayo, kwaye iqela lethu lobunjineli liya kucebisa eyona ndibaniselwano yetrim enexabiso eliphezulu.

Ubungakanani, iKlasi yoxinzelelo kunye noyilo loKhenketho

Ubungakanani bugubungela i-DN15 ~ DN300 kunye nokuzala okukhulu xa uceliwe. Imilinganiselo yoxinzelelo ibandakanya i-PN16, i-PN40, i-PN63, i-PN100, i-PN160, kunye ne-ASME iKlasi ye-150, i-300, i-600, i-900, i-1500.

Ubuso beFlange bufumaneka kwiFace ePhakamileyo (RF) kunye neRing Type Joint (RTJ). Uyilo olukhuselekileyo emlilweni kunye ne-anti-static lunokubonelelwa ngesicelo.

Unokukhetha ibhore epheleleyo okanye ibhore encitshisiweyo. Ukuzala okugcweleyo kokuphuma kwelahleko kwaye kuvumele ukukhwela kwehagu. Ukubhora okucuthiweyo kuncinci kwaye kuyasebenziseka ngakumbi uhlahlo lwabiwo-mali ukuba akudingekile.

Iinketho zokuSebenza

Sinikezela ngeendlela ezininzi zokusebenzisa ukuze zilingane neemfuno zakho zesayithi:

- Isibambo se-Lever: iyafikeleleka kwaye ilula, ifanelekile ekusebenzeni ngesandla xa ivalve ilula ukufikelela kuyo

-Umqhubi weGear: kwi-bore enkulu okanye i-valve ye-torque ephezulu, yenza ukuvula ngesandla kunye nokuvala kube lula kakhulu

-I-actuator ye-pneumatic: vula ngokukhawuleza kwaye uvale. Idibanisa kunye neevalvu ze-solenoid kunye nokutshintsha umda kulawulo oluzenzekelayo

-I-actuator yombane: ilungele ukusebenza kude, ulawulo lokuhamba, okanye iindawo ezingenawo umoya oxiniweyo

Singongeza kwakhona ivili lesandla kwi-valve esebenzayo. Oku kukuvumela ukuba usebenzise ivalve ngesandla ukuba amandla okanye unikezelo lomoya aluphumeleli.

Yeyiphi imigangatho yokuhlola kunye namaxwebhu onokuwafumana kuthi?

Yonke ivalve yebhola ephothiweyo ivavanywa kwiqokobhe le-hydrostatic kunye novavanyo lokuvuza kwesitulo phambi kokupakishwa. Silandela i-API 6D, i-ASME B16.5 kunye nemigangatho yezoshishino ehambelana nayo. Ukuhlolwa kwamangqina omntu wesithathu kuxhaswa ukuba kufunwa ngokwenkcazo yeprojekthi yakho.

Singabonelela ngawo onke amaphepha owafunayo: izatifikethi zovavanyo lwemathiriyeli, iingxelo zovavanyo, imizobo yobungakanani kunye neencwadana zokusebenza. Yonke i-valve isitampu ngokucacileyo kunye nenani layo lokushisa, ibakala lezinto eziphathekayo, ubungakanani kunye noxinzelelo loxinzelelo, ngoko unokulandelela izinto zayo kunye nembali yokuvelisa ngaphandle kwenkathazo.