Kutheni ukhetho lwe-Sango lwe-veli luhlala lunemigibe?

Kutheni ukhetho lwe-Sango lwe-veli luhlala lunemigibe? Le migibe i-5 'engabonakaliyo' iphindwe kabini iindleko zobunjineli!

Kwiinkqubo zemizi mveliso,I-valves yesangozizixhobo ezibalulekileyo ze-cutoff. Ukhetho olungafanelekanga lunokukhokelela ekuvuyeni rhoqo kunye nokulibaziseka kokusebenza, kunye neemeko zokhuseleko, iingozi zokhuseleko, kunye neendleko ngaphezulu kweprojekthi yonke. Nangona kunjalo, enyanisweni, ngaphezulu kwe-60% ye-steve ye-valve esuka kwi "Iimpazamo zenqanaba eliphantsi" ngexesha lokukhetha. Kutheni le nto isango lesango elineeparamitha ezifanayo zinentsebenzo eyahlukileyo? Eli nqaku liveza imigibe yokhetho olungaphezulu kwezi-5 ukukunceda uphephe imigibe.

Umgibe woku-1: Uxinzelelo olufanelekileyo (PN) lubhalwe ngokuxoka, kwaye ukungavisisani kovavanyo olungakhokelela kwiziphumo ezibi

Uxinzelelo oluchanekileyo yiparamitha engaphambili ye-valve yesango, kodwa abathengi abathile bahlala benqumle iikona kwizixhobo ukuze banciphise iindleko. Umzekelo, ye-valve yesango ene-PN16, ukuba i-valve ifakwe kwi-WCB Ishishini elithile lekhemikhali lalikhetha ngokucothayo olu hlobo lwe-valines yesango, kwaye emva kweenyanga ezintathu zomsebenzi, imizimba yevali ye-varve igqitha ngaphezulu kwe-800000 yuan yuan. Iqhosha lokukhetha: Umenzi kufuneka anike ingxelo yezinto ezibonakalayo kwaye aqinisekise ngokuhambelana phakathi kwexabiso le-PN kunye nezixhobo zomzimba wevali, ikhava yevalve, kunye ne-valve stem.

Umgibe 2: I-Mismatric Elgan Transphation Izinto zeZinto zeMhlaba, ukuvuza iba ngumgangatho

Intsebenzo yokutywina kwamasango ixhomekeke ekubhekiseni phakathi kwezinto zomhlaba zokutywina kunye neemeko zomsebenzi, kodwa ukhetho luhlala lujongelwa. Umzekelo, i-valves enesango eliqinileyo (i-WCL + stl alloy) ilungele ubushushu obuphezulu, uxinzelelo oluphezulu, kunye ne-valves ephezulu, ngelixa irabha etywiniweyo (imithombo yeendaba ecocekileyo. Isityalo esithile sokunyanga esinyibilikileyo sisebenzise i-valve ethambileyo yesango lemibhobho yobushushu equkethe i-sediment. Kwinyanga nje enye, umphezulu wokutywina wawunxitywa kwaye wavuza, unyanzela ukuba ungene endaweni ye-valves yesango eliqinileyo ukusombulula ingxaki. Iqhosha lokukhetha: chaza ngokucacileyo ukwenziwa, ubushushu, kunye noxinzelelo lwe-valves ephakathi, kwaye ubeke phambili i-valves yesango eliphakathi kunye ne-valves yesango elinezinto ezibonakalayo ezikhulu kunexabiso lomda.

I-TRAP 3: Ukujikajika kweThente yoKhetho lwe-Halve Stem, I-Delemma phakathi kokusebenza kunye nokugcinwa

Isakhiwo seStem seI-valves yesangoYahlulahlulwe yangu-stem evulekileyo kunye nesiqu esifihliweyo, kwaye ukhetho kufuneka lusekwe kwindawo yokufaka kunye nokugcinwa rhoqo. I-valve enesango eliqaqambileyo le-Stemps lithambekele ekuqokeleleni uthuli kunye nolonwabo ngenxa ye-vall, kodwa isikhundla se-valte sinokujongwa ngokuthe ngqo ngexesha lokugcina; I-valve yesango le-Stem efihlakeleyo inesakhiwo secandelo kwaye ilungele imeko yendawo enomda, kodwa xa itywina liyasilela, yonke ivalve iphela kufuneka idityaniswe. Ngenxa yokunqongophala kokuqwalaselwa lula kolondolozo, iprojekthi ethile ethile inyule i-valve yesango efihlakeleyo kwiitoti ezinqamlezileyo, ezifuna ukwenziwa kwemibhobho yolondolozo kamva, kukhokelela kwindleko ezintathu zokulungisa. Iqhosha lokukhetha: indawo eyaneleyo kwaye ulondolozo rhoqo kufuneka ukhethe isibonda esibonakalayo; Isithuba silinganiselwe kwaye utyando lwexesha elide lufuna ukusetyenziswa kwezibonda ezifihliweyo.

I-4: Iindlela zokuqhuba ngokuqhuba, ukungalingani phakathi kokusebenza kakuhle kunye neendleko

I-valve yesango ineendleko eziphantsi, kodwa izibonelelo ezizenzekelayo zombane zesango zihlala zijongwa. Umzekelo, kwiiNkqubo zokuKhuselwa komlilo ezifuna ulawulo olude, i-valve yesango le-Subals lifuna ukuSebenza kweSiza kwaye zinamaxesha okuphendula kancinci; I-valve yombane yesango inokudityaniswa nenkqubo yokunxibelelanisa umlilo kwaye inokuvulwa kwaye ivaliwe ngaphakathi kwemizuzwana emi-3. I-valls yezorhwebo emva kokuba isetyenziselwe isango lesango elisetyenzisiweyo ukugcina iindleko, kodwa ngexesha lomlilo, abasebenzi abakwazanga ukufikelela kwindawo ngexesha lokuvala iivalvu, kubangela ukuba umlilo usasazeke. Iqhosha lokukhetha: Yenza izigqibo ezibanzi ezisekwe kwiimfuno zolawulo (imanyuwali / yombane / i-pneumatic), isantya sokuphendula, kunye nohlahlo-lwabiwo mali.

Umgibe 5: Ukuqinisekiswa kweshishini ', umgangatho awuqinisekanga

I-valves yesangoKufuneka uqinisekiswe ngokwemigangatho efana ne-API ye-API kunye ne-GB / T 12234, kodwa ezinye iifektri ezincinci zokuhambisa ngokukhawuleza. Umzekelo, i-valves yesango engakhange ithathe uvavanyo lwefuthe lobushushu liqhelene nokuqhekezwa kweBrittle kwindalo esingqongileyo -0 ℃; I-valve yesango engazange idlulise uvavanyo lokutshiza ityuwa luye emva kweenyanga ezi-3 kwindawo yaselwandle. Iqhosha lokukhetha: Umenzi kufuneka anikezele ngezatifikethi zengqiqo kwaye uqinisekise idatha ephambili efana nobushushu, uxinzelelo, kunye nokunganyangeki kovavanyo kwingxelo yovavanyo.

Ukuqukumbela: Ukukhetha kwe-Palve Palve ayingomdlalo olulula "wokuhambelana ngokuhambelana", kodwa kuthathelwa ingqalelo ngendlela ecwangcisiweyo yezinto ezibonakalayo, isakhiwo, iimeko zokusebenza, kunye nesiqinisekiso. Olunye ukhetho oluchanekileyo lunokwandisa ubomi benkonzo ye-valve yesango ngamaxesha angama-3-5 kwaye unciphise iindleko zokulungisa ngaphezulu kwe-50%. Khumbula: Ukubuza "Ngaba ilungele iimeko zam zomsebenzi?" Xa ukhetha ngcono kunokulungisa kalishumi emva koko!