Ngophuhliso oluqhubekayo lolwakhiwo lobunjineli, iivalvu, njengesixhobo esibalulekileyo solawulo lokuhamba, ngokuthe ngcembe ziye zaba yinxalenye ebalulekileyo yamashishini ahlukeneyo. Indlela yokukhetha iivalve ezikumgangatho ophezulu ezihlangabezana neemfuno ziye zaba yingxaki abanini abaninzi abaxhalabileyo kwaye banenkxalabo ngayo. Namhlanje, siza kukunika inzululwazi eyaziwayo indlela yokukhetha iivalve ezikumgangatho ophezulu eziveliswe ngabavelisi bevalve yaseTianjin.
Okokuqala, nikela ingqalelo kwizinto eziphathekayo zevalve. Amashishini ahlukeneyo kunye neeprojekthi zifuna izixhobo ezahlukeneyo zevalve, ngoko ke kubaluleke kakhulu ukukhetha izinto ezifanelekileyo ngokweemfuno zangempela. Ngokuqhelekileyo, izixhobo zevalve zibandakanya intsimbi etyhidiweyo, intsimbi ye-carbon, insimbi engenasici, njl., apho iivalve zensimbi ezingenasici zisetyenziswa ngokubanzi kwiikhemikhali, ukutya, amayeza kunye namanye amashishini. Ngenxa yokuba i-valve yensimbi engenasici inokumelana ne-corrosion egqwesileyo, inokuqinisekisa ukusebenza okuzinzileyo kwexesha elide lenkqubo yobunjineli.
Okwesibini, kufuneka sinikele ingqalelo ekusebenzeni kokutywinwa kwevalve. Ivalve ekumgangatho ophezulu kufuneka ibe nomsebenzi obalaseleyo wokutywina ukuqinisekisa ukuchaneka kunye nokuzinza kokulawula ulwelo kunye nokuphepha ukuvuza kunye nokulahleka ngenxa yokutywinwa kakubi. Ngoko ke, xa kuthengwa i-valve eveliswe ngumenzi weValve ye-Tianjin, kuyimfuneko ukujonga ngokucophelela izinto zokutywinwa, isakhiwo kunye nenkqubo yokuvelisa i-valve ukuqinisekisa ukuba ihlangabezana nemigangatho efanelekileyo kunye neemfuno.
Kwakhona, qaphela ukuqina kwevalve. Ukuqina kwe-valve akuxhomekeke kuphela ekukhethweni kwezinto eziphathekayo, kodwa kuninzi malunga nokuchaneka kwezixhobo kunye nenkqubo yokuvelisa. Ngoko ke, khetha i-valve eveliswe ngumenzi wevalve ye-Tianjin, kufuneka siqwalasele ngokubanzi inkqubo yayo yokuvelisa, ukuchaneka kwezixhobo, ukuqinisekiswa komgangatho kunye nenkonzo emva kokuthengisa, njl., Ukuqinisekisa ukuba i-valve inokuqhuba ngokuzinzileyo ixesha elide.
Ekugqibeleni, kufuneka sinikele ingqalelo kwindlela yokulawula i-valve. Indlela yokulawula i-valve ihluke, ukuba imo yokulawula ayikhethwanga, inokukhokelela ekungaphumeleli kwe-valve, ukusebenza kakubi kunye nezinye iingxaki. Ngoko ke, xa ukhetha iivalve eziphezulu eziveliswe ngabavelisi beValve ye-Tianjin, iintlobo ezahlukeneyo ze-actuator, iindlela zokusebenza kunye neenkqubo zokulawula kufuneka zikhethwe ngokweemfuno zangempela zokuqinisekisa ulawulo oluchanekileyo kunye nokusebenza kakuhle kweevalve.
Ngamafutshane, ukukhethwa kweevalvu ezikumgangatho ophezulu kufuneka kuqwalaselwe inani lemiba, njengezinto eziphathekayo, ukusebenza kokutywinwa, ukuqina kunye neendlela zokulawula, kwaye kufuneka baqonde umthamo wemveliso kunye nenkonzo emva kokuthengiswa kwabenzi beevalve zeTianjin ukuqinisekisa ukuba iivalve ezikhethiweyo zinokuhlangabezana neemfuno zangempela kunye nokusebenza okuzinzile kwexesha elide. Ndiyathemba ukuba eli nqaku linokukunceda ukhethe iivalve ezikumgangatho ophezulu eziveliswe yiTianjin Valve umenzi e China.
Ixesha lokuposa: Jun-26-2023
