Incwadana yokuSebenza kunye nokuGcina yeeValthi zeSango

2.4 Izinto eziphambili kunye nezixhobo

IGAMA	IZINTO
Umzimba / Ibhonethi	WCB, LCB, WC6, WC9, CF3, CF3M CF8, CF8M
Isango	WCB, LCB, WC6, WC9, CF3, CF3M CF8, CF8M
Sihlalo	A105, LF2, F11, F22, F304, 304L, F316, 316L
Isiqu	F304 （304L 、 F316 （316L 、 2Cr13 imoto1Cr13
Ukupakisha	Umsizi osontiweyo weGrafayithi eFlexible kunye ne-PTFE njl
Bolt / Nut	I-35 / 25、35CrMoA / 45
I-Gasket	304 （316 Graph + Umsizi / 304 （316） + iGasket
SihlaloIringi / iDiski/ Ukutywina	13Cr, 18Cr-8Ni, 18Cr-8Ni-Mo, PP, PTFE, STL njl

 

3. UkuGcina kunye nokuGcina kunye nokuFakwa kunye nokuSebenza

3.1 UkuGcina kunye nokuGcina

3.1.1 Ivaluva kufuneka zigcinwe zikwimeko yangaphakathi. Ukuphela kwesiphelo kufuneka kugqunywe ngeplagi.

3.1.2 Ukuhlolwa kwexeshana kunye nokucoca kufuneka kwii-valves ezigcinwe ixesha elide, ngakumbi ukutywina ukucoca umphezulu. Akukho monakalo uvumelekileyo. Ukuthambisa ioyile kuyacelwa ukuba kuthintelwe umhlwa wobuso boomatshini.

3.1.3 Ngokumalunga nokugcinwa kwesivingco ngaphezulu kweenyanga ezili-18, kufuneka iimvavanyo ngaphambi kokufakwa kwevalve kwaye kurekhodwe iziphumo.

3.1.4 Ivaluva kufuneka ihlolwe rhoqo kwaye igcinwe emva kofakelo. Iingongoma eziphambili zezi zilandelayo:

1, uphawu umphezulu

2, isiqu kunye isiqu nut

3, Ukupakisha

Ukucocwa komphezulu wangaphakathi kwangaphakathi kunye neBonnet.

3.2 Ukufakwa

3.2.1 Phinda ujonge ukumakishwa kwevalve (Uhlobo, i-DN, ireyithingi, iMathiriyeli) ehambelana nokumakisha okucelwe yinkqubo yombhobho.

3.2.2 Ukucoca ngokugqibeleleyo indawo yokuvala kunye nokutywina kuyacelwa ngaphambi kokufakwa kwevalve.

3.2.3 Qinisekisa ukuba iibholiti ziqinile phambi kofakelo.

3.2.4 Qinisekisa ukuba ukupakisha kuqinile phambi kokufakwa. Nangona kunjalo, ayifanele iphazamise intshukumo yesiqu.

Indawo ye-Valve kufuneka ilungele ukuhlolwa nokusebenza kwayo. Horizontal ukuya kumbhobho kukhethwa. Gcina ivili lesandla phezulu kunye nokuma nkqo.

I-3.2.6 Yavalve evaliweyo, ayifanelekanga ukuba ifakwe kwimeko yoxinzelelo oluphezulu. Isiqu kufuneka sithintelwe ukuba sonakaliswe.

3.2.7 Kwi-valve yesokethi ye-welding, kucelwa uhoyo ngexesha lokuxhuma kwevalve ngolu hlobo lulandelayo:

1 Welder kufuneka ziqinisekiswe.

Inkqubo 2, i-parameter yentsimbi kufuneka ihambelane nesiqinisekiso somgangatho wento yokuwelda.

Izinto zokugcwalisa ezi-3 zomgca we-welding, ukusebenza kweekhemikhali kunye nokuchaphazeleka kunye ne-anti-corrosion kufuneka kufane nezinto zomzali womzimba.

3.2.8 Ukufakwa kwevalve kufuneka kuthintele uxinzelelo oluphezulu oluvela kwizihlanganisi okanye imibhobho.

3.2.9 Emva kofakelo, izivalo mazibe zivulekile ngexesha lovavanyo loxinzelelo lombhobho.

Indawo yokuxhasa i-3.2.10: ukuba umbhobho womelele ngokwaneleyo ukuxhasa ubunzima bevalve kunye nokusebenza kwe torque, indawo yenkxaso ayiceliwe. Ngaphandle koko iyafuneka.

3.2.11 Ukuphakamisa: Ukuphakamisa ivili lesandla akuvumelekanga kwiivelufa.

3.3 UkuSebenza nokuSetyenziswa

3.3.1 Izivalovalo zamasango kufuneka zivulwe ngokupheleleyo okanye zivaliwe ngexesha lokusetyenziswa ukunqanda ukuvalelwa kwesihlalo kunye nendawo yediski ebangelwe sisantya esiphezulu. Abanakumangalelwa ngommiselo wokuhamba.

3.3.2 Ivili lesandla kufuneka lisetyenziselwe ukubuyisela ezinye izixhobo ukuvula okanye ukuvala iivalve

3.3.3 Ngexesha lobushushu benkonzo evumelekileyo, uxinzelelo olukhawulezileyo kufuneka lube ngaphantsi koxinzelelo olulinganisiweyo ngokwe-ASME B16.34

3.3.4 Akukho monakalo okanye kugwayimbo kuvunyelwe ngexesha lokuthuthwa kwevalve, ukufakwa nokusebenza kwayo.

3.3.5 Linganisa isixhobo sokujonga ukuhamba okungazinzanga kuyacelwa ukuba silawule kwaye sisuse imeko yokubola ukuthintela ukonakala kwevalvu kunye nokuvuza.

3.3.6 amafu abandayo aya kuba nefuthe ekusebenzeni kwevalve, kwaye izixhobo zokulinganisa kufuneka zisetyenziselwe ukunciphisa ubushushu bokuhamba okanye ukubuyisela ivalve endaweni yayo.

3.3.7 Kulwelo olunokutsha lula, sebenzisa izixhobo zokulinganisa ezifanelekileyo ukuqinisekisa imeko yoxinzelelo kunye nokusebenza ayidluli kwindawo yalo yokutshisa (ingakumbi ukukhanya kwelanga okanye umlilo wangaphandle).

3.3.8 Kwimeko yolwelo olunobungozi, olunjengeziqhushumbisi, ezinokutsha, ezinetyhefu, iimveliso zeoksijini, akuvumelekanga ukubuyisela ukupakisha phantsi koxinzelelo. Ngapha koko, kwimeko kaxakeka, akukhuthazwa ukuba ubeke endaweni yokupakisha phantsi koxinzelelo (nangona ivalve inomsebenzi onjalo).

3.3.9 Qiniseka ukuba ulwelo alungcolanga, oluchaphazela ukusebenza kwevalvu, kungabandakanywa iziqina eziqinileyo, kungenjalo izixhobo ezifanelekileyo zokulinganisa kufuneka zisetyenziselwe ukususa ukungcola kunye nokuqina okuqinileyo, okanye ukubuyisela olunye uhlobo lwevalve.

3.3.10 Iqondo lobushushu lokusebenza elisebenzayo

Izinto eziphathekayo	Ubushushu	Izinto eziphathekayo	Ubushushu
WCB	-29 ～ 425 ℃	WC6	-29 ～ 538 ℃
I-LCB	-46 ～ 343 ℃	WC9	-29 ～ 570 ℃
ICF3, CF3M）	-196 ～ 454 ℃	CF8 （CF8M）	-196 ～ 454 ℃

3.3.11 Qiniseka ukuba izinto zomzimba wevalufa zikulungele ukusetyenziswa kumhlwa kunye nomhlwa othintela imeko engamanzi.

3.3.12 Ngexesha lenkonzo, jonga ukutywina ukusebenza ngokwetheyibhile engezantsi:

Indawo yokuhlola	Ukuvuza
Uqhagamshelo phakathi kwevalve yomzimba nevalufa yebhonethi	Unothi
Ukupakisha itywina	Unothi
Isihlalo somzimba weValve	Ngokweenkcukacha zobugcisa

3.3.13 Rhoqo ujongisise ukukhangela indawo yokuhlala, ukupakisha ukuguga nomonakalo.

3.3.14 Emva kokulungiswa, hlanganisa kwakhona kwaye ulungelelanise i-valve, uze uvavanye ukusebenza kokuqina kunye nokwenza iirekhodi.

4. Iingxaki ezinokubakho, oonobangela kunye namanyathelo okulungisa

Inkcazo yengxaki	Isizathu esinokubangela	Amanyathelo okulungisa
Ukuvuza xa upakisha	Ukupakisha ngokungonelanga	Qinisa kwakhona ukupakisha nut
	Ubungakanani obungonelanga bokupakisha	Yongeza ukupakisha okungaphezulu
	Ukupakisha konakele ngenxa yenkonzo yexesha elide okanye ukhuseleko olungalunganga	Buyisela ukupakisha
Ukuvuza kwindawo yokuhlala yevalve	Ubuso bokuhlala obumdaka	Susa ukungcola
	Ubuso obunxibileyo bokuhlala	Yilungise okanye ubeke endaweni yokufaka iringi okanye isitya sevalve
	Indawo yokuhlala eyonakalisiweyo ngenxa yokuqina okuqinileyo	Susa izinto eziqinileyo ezilukhuni kulwelo, buyisela iringi yokuhlala okanye ipleyiti yevalve, okanye ubeke olunye uhlobo lwevalve
Ukuvuza kunxibelelwano phakathi komzimba wevalve kunye ne-bonnet yevalve	Iibholiti azifakwanga kakuhle	Ngokulinganayo bopha iibholiti
	Ibhonethi eyonakalisiweyo yokutywina ubuso bomzimba wevalve kunye nevalve flange	Yilungise
	I-gasket eyonakeleyo okanye eyaphukileyo	Buyisela i-gasket
Ubunzima bokujikeleza kwevili lesandla okanye ipleyiti yevalve ayinakuvulwa okanye ivalwe.	Ukupakisha okuqinisiweyo kakhulu	Ngokufanelekileyo sikhulule i-nut yokupakisha
	Ukuguqulwa okanye ukugoba kwe-gland yokutywina	Lungisa ukutywina idlala
	Umonakalo we-nut stem we-valve	Lungisa intambo kwaye ususe emdaka
	Umtya ogqityiweyo okanye owaphukileyo we-valve stem	Guqula i-nut stem stem
	Isiqu sevalve ebunjiweyo	Guqula isiqu sevalve
	Isikhokelo esingcolileyo somgangatho weplate yevalve okanye umzimba wevalve	Susa ukungcola kumphezulu wesikhokelo

Qaphela: Umntu wenkonzo kufuneka abe nolwazi olufanelekileyo kunye namava ngevaluva zokutywina kwamanzi ivalve yesango

Ukupakisha kwebhonethi kukutywinwa kwamanzi, kuya kwahlulwa phakathi komoya ngelixa uxinzelelo lwamanzi lufikelela kwi-0.6 ~ 1.0MP ukuqinisekisa ukusebenza kakuhle kokutywinwa komoya.

5. Isiqinisekiso:

Emva kokuba ivalve isetyenzisiwe, ixesha lewaranti yenyanga ezili-12, kodwa ayidluli kwiinyanga ezili-18 emva komhla wokuziswa. Ngexesha lewaranti, umenzi uya kubonelela ngenkonzo yokulungisa okanye izinto ezizezinye ngaphandle kwentlawulo yomonakalo ngenxa yemathiriyeli, umsebenzi okanye umonakalo onikezelweyo ukuba umsebenzi uchanekile.