A.Ukufakwa kwevalvu yesango
Ivalve yesango, eyaziwa ngokuba yivalve yesango, ivalve esebenzisa isango ukulawula ukuvulwa nokuvala, kunye nokulungelelanisa ukuhamba kombhobho kwaye ivule kwaye ivale umbhobho ngokuguqula icandelo elinqamlezayo.Iivalve zesango isetyenziswa kakhulu kwimibhobho evula ngokupheleleyo okanye evala ngokupheleleyo isiphakathi solwelo. Ufakelo lwevalvu yesango ngokubanzi alunamfuno zalathiso, kodwa alunakuphetshwa.
B.Ukufakelwa kweiglowubhu ivalve
Ivalve yeglowubhu yivalve esebenzisa idiskhi yevalve ukulawula ukuvulwa nokuvala. Lungisa ukuhamba okuphakathi okanye unqumle isicatshulwa esiphakathi ngokutshintsha isithuba phakathi kwediski yevalve kunye nesihlalo sevalve, oko kukuthi, ukutshintsha ubungakanani becandelo leshaneli. Xa ufaka i-valve yokuvala, ingqwalasela kufuneka ihlawulwe kwicala lokuhamba kwamanzi.
Umgaqo omele ulandelwe xa kufakwa i-valve yeglowubhu kukuba ulwelo olukumbhobho ludlula kumngxuma wevalve ukusuka ezantsi ukuya phezulu, ngokuqhelekileyo owaziwa ngokuba "uphantsi kwaye uphume phezulu", kwaye akuvumelekanga ukuyifaka ngasemva.
C.Ukufakwa kwevalve yokukhangela
Khangela ivalve, eyaziwa ngokuba yi-valve yokutshekisha kunye ne-valve yendlela enye, i-valve evula ngokuzenzekelayo kwaye ivale phantsi kwesenzo somohluko woxinzelelo phakathi kwangaphambili nangasemva kwevalve. Umsebenzi wayo kukwenza ukuhamba okuphakathi kwicala elinye kuphela kwaye kuthintele i-medium ukuba ibuyele umva kwicala elingasemva. Ngokwezakhiwo zabo ezahlukeneyo,khangela iivalvu zibandakanya uhlobo lokuphakamisa, uhlobo lokujingi kunye nohlobo lwe-butterfly wafer. Ivalve yokukhangela yokuphakamisa yahlulwe ibe tye kwaye ime nkqo. Xa ufaka ikhangela ivalve, ingqwalasela kufuneka ihlawulwe kwakhona kwi-flow direction ye-medium kwaye ayikwazi ukufakwa umva.
D.Ukufakwa kwevalve yokunciphisa uxinzelelo
Ivalve yokunciphisa uxinzelelo yisivalo esinciphisa uxinzelelo lokungena kuxinzelelo oluthile olufunekayo lokuphuma ngohlengahlengiso, kwaye luxhomekeke kumandla ophakathi ngokwawo ukugcina ngokuzenzekelayo uxinzelelo lokuphuma luzinzile.
1. Iqela levalve yokunciphisa uxinzelelo elifakwe ngokuthe nkqo libekwe ngokubanzi eludongeni kumphakamo ofanelekileyo ukusuka emhlabeni; iqela levalve yokunciphisa uxinzelelo efakwe ngokuthe tye ifakwe ngokubanzi kwiqonga lokusebenza elisisigxina.
2. Insimbi yesicelo ilayishwe eludongeni ngaphandle kwee-valve ezimbini zokulawula (eziqhelekileyo zisetyenziselwa i-globe valves) ukwenza i-bracket, kwaye umbhobho we-bypass uphinde unamathele kwi-bracket ukuya kwinqanaba kunye nokulungelelanisa.
3. Ivalve yokunciphisa uxinzelelo kufuneka ifakwe ngokuthe tye kumbhobho othe tye, kwaye akufanele ithotyelwe. Utolo olukumzimba wevalvu kufuneka lwalathe kwicala lokuhamba okuphakathi, kwaye akufuneki lufakwe ngasemva.
4. Iivalve zeglobhu kunye ne-high and low pressure gauges kufuneka zifakwe kumacala omabini ukujonga utshintsho loxinzelelo ngaphambi nangemva kwevalve. Idayamitha yombhobho ngasemva kwevalve yokunciphisa uxinzelelo kufuneka ibe yi-2#-3# inkulu kunedayamitha yombhobho wokungena phambi kwevalve, kunye nombhobho wokugqitha kufuneka ufakelwe ulondolozo.
5. Umbhobho wokulinganisa uxinzelelo we-membrane yokunciphisa i-valve kufuneka idibaniswe kwipayipi yoxinzelelo oluphantsi. Imibhobho yoxinzelelo oluphantsi kufuneka ixhotyiswe ngeevalvu zokhuseleko ukuqinisekisa ukusebenza ngokukhuselekileyo kwenkqubo.
6. Xa isetyenziselwa ukuchithwa kwe-steam, umbhobho wokukhupha kufuneka ubekwe. Kwiinkqubo zemibhobho ezifuna iqondo eliphezulu lokucocwa, isihluzi kufuneka sifakwe phambi kwevalve yokunciphisa uxinzelelo.
7. Emva kokuba iqela le-valve yokunciphisa uxinzelelo lifakwe, i-valve yokunciphisa uxinzelelo kunye ne-valve yokukhusela kufuneka ivavanywe uxinzelelo, ihlanjululwe kwaye ilungiswe ngokweemfuno zoyilo, kwaye uphawu oluhlengahlengisiweyo kufuneka lwenziwe.
8. Xa ugungxula ivalve yokunciphisa uxinzelelo, vala ivalve yokungena yesinciphisi soxinzelelo kwaye uvule ivalve yokugungxula ukuze ugungxule.
E.Ukufakwa kwemigibe
Umsebenzi osisiseko we-steam trap kukukhupha amanzi adibeneyo, umoya kunye ne-carbon dioxide gas kwinkqubo ye-steam ngokukhawuleza; kwangaxeshanye, inokuthintela ngokuzenzekelayo ukuvuza komphunga ngowona mlinganiselo mkhulu. Kukho iintlobo ezininzi zemigibe, nganye inentsebenzo eyahlukileyo.
1. Iivalve zokuvala (iivalvu zokuvala) kufuneka zisetwe ngaphambi nasemva, kwaye isihluzo kufuneka sibekwe phakathi kwesivayipha kunye nevalve yokuvala yangaphambili ukuthintela ukungcola kumanzi ajiyileyo ekuthinteleni umgibe.
2. Umbhobho wokuhlola kufuneka ufakwe phakathi kwe-steam trap kunye nevalve yokuvala yangasemva ukujonga ukuba i-steam trap isebenza ngokuqhelekileyo. Ukuba umthamo omkhulu we-steam ukhutshwa xa umbhobho wokuhlola uvuliwe, kuthetha ukuba umgibe we-steam uphukile kwaye kufuneka ulungiswe.
3. Injongo yokumisela umbhobho we-bypass kukukhupha inani elikhulu lamanzi adibeneyo ngexesha lokuqalisa kunye nokunciphisa umthwalo wokukhupha umgibe.
4. Xa umgibe usetyenziselwa ukukhupha amanzi adibeneyo ezixhobo zokufudumeza, kufuneka afakwe kwindawo engezantsi yesixhobo sokufudumeza, ukwenzela ukuba umbhobho we-condensate ubuyiselwe ngokuthe nkqo kwi-trap yomphunga ukukhusela amanzi ukuba angagcinwa. izixhobo zokufudumeza.
5. Indawo yokufakela kufuneka ibe kufuphi nendawo yokukhupha amanzi ngokusemandleni. Ukuba umgama ude kakhulu, umoya okanye umphunga uya kuqokelelana kumbhobho obhityileyo phambi komgibe.
6. Xa umbhobho othe tyaba wombhobho we-steam ude kakhulu, kufuneka kuqwalaselwe ingxaki yokukhutshwa kwamanzi.
F.Ukufakwa kwevalve yokhuseleko
I-valve yokukhusela i-valve ekhethekileyo yokuba iindawo zokuvula kunye nokuvala zikwimeko evaliweyo ngokuqhelekileyo phantsi kwesenzo samandla angaphandle. Xa uxinzelelo oluphakathi kwisixhobo okanye umbhobho lukhuphuka ngaphaya kwexabiso elichaziweyo, likhupha i-medium ukuya ngaphandle kwenkqubo ukukhusela uxinzelelo oluphakathi kumbhobho okanye izixhobo ezingaphezulu kwexabiso elichaziweyo. .
1. Ngaphambi kofakelo, imveliso kufuneka ihlolwe ngononophelo ukuqinisekisa ukuba kukho isatifikethi sokuthotyelwa kunye nencwadana yemveliso, ukwenzela ukuba kucaciswe uxinzelelo oluqhubekayo xa ushiya umzi-mveliso.
2. Ivalve yokhuseleko kufuneka ilungiswe ngokusondeleyo kangangoko kunokwenzeka kwiqonga lokuhlola nokugcinwa.
3. Ivalve yokhuseleko kufuneka ifakwe ngokuthe nkqo, i-medium kufuneka iphume ukusuka ezantsi ukuya phezulu, kwaye i-verticality ye-valve stem kufuneka ihlolwe.
4. Kwiimeko eziqhelekileyo, iivalve zokuvala azikwazi ukusetwa ngaphambi nangemva kwevalve yokhuseleko ukuqinisekisa ukhuseleko nokuthembeka.
5. Ukunciphisa uxinzelelo lwevalve yokhuseleko: xa i-medium ilulwelo, ikhutshelwa ngokubanzi kumbhobho okanye inkqubo evaliweyo; xa i-medium iyigesi, ikhutshwa ngokubanzi kwi-atmosphere yangaphandle;
6. I-oyile kunye ne-gas medium ingakhutshwa ngokubanzi kwi-atmosphere, kwaye ukuphuma kwe-valve yokukhusela ipayipi yokukhusela kufuneka ibe yi-3m ephezulu kunezona zakhiwo ziphezulu ezijikelezileyo, kodwa le miqathango ilandelayo kufuneka ikhutshwe kwinkqubo evaliweyo ukuqinisekisa ukhuseleko.
7. Ububanzi bombhobho wabemi kufuneka bulingane ubuncinane nombhobho wokungena wevalve; ububanzi bombhobho wokukhupha akumele bube buncinci kunobubanzi be-valve, kwaye umbhobho wokukhupha kufuneka uholelwe ngaphandle kwaye ufakwe nge-elbow, ukwenzela ukuba umbhobho ujonge indawo ekhuselekileyo.
8. Xa i-valve yokhuseleko ifakwe, xa uxhulumaniso phakathi kwevalve yokhuseleko kunye nezixhobo kunye nombhobho uvula i-welding, ububanzi bokuvula kufuneka bufane nobukhulu obuqhelekileyo be-valve yokhuseleko.
Ixesha lokuposa: Jun-10-2022