Ekusabalaliseni imakethe, sivamise ukuhlangana namapayipi ajwayelekile afana "namapayipi ajwayelekile amathathu" kanye "namapayipi ajwayelekile".
Kodwa-ke, abangane abaningi abazi ngokwanele mayelana nesimo sangempela samapayipi ajwayelekile, futhi abaqondi. Ngithemba ukuthi lesi sihloko singakunikeza ugqozi ukuze ungabe usaba nokungabaza ekuthengeni nasekusetshenzisweni okulandelayo.
01—Ukuthuthukiswa kwamapayipi asezingeni eliningi afana “namapayipi ajwayelekile amathathu” kanye “namapayipi ajwayelekile” kanye nezizathu kanye nokubaluleka kokuba khona kwawo.
Ezinsukwini zakuqala, amapayipi asezingeni eliningi ayegqugquzelwa noma adingwa yiqembu lephrojekthi, ukuze iqembu lephrojekthi likwazi ukuthenga futhi lisebenzise ngendlela ebumbene, lisindise isikhathi nezinkinga.
Ekuqaleni, amapayipi asezingeni eliphezulu ayekhona ngokuhambisana nezindinganiso zaseMelika kanye nezindinganiso zaseMelika, futhi isiqondiso esiyinhloko sokusetshenziswa kwakuwukuthunyelwa kwamanye amazwe, ikakhulukazi okuhlanganisa "amapayipi ajwayelekile" kanye "namapayipi ajwayelekile amahlanu". Kamuva, ngenxa yokuthi imiklamo eminingi yamaphrojekthi we-petrochemical yasekhaya yaqalwa ngokuhambisana nezindinganiso zaseMelika, amapayipi ajwayelekile afakwa kancane kancane ekuthengeni nasekusetshenzisweni kwemiklamo yasekhaya ye-petrochemical kanye namakhemikhali.
Njengoba isikhathi sihamba futhi imakethe ikhula ngendlela ecolisisiwe, ukuhlukaniswa kwamapayipi asezingeni eliningi emakethe manje sekunobuchwepheshe futhi kuhlukahlukene.
Njengamanje, ngaphezu "kwamapayipi ajwayelekile amathathu" kanye "namapayipi ajwayelekile amahlanu", kukhona "amapayipi ajwayelekile kabili" kanye "namapayipi ajwayelekile" emakethe. Ngaphezu kwalokho, azikhawulelwe ekuhlalisaneni kwezindinganiso zaseMelika kanye nezindinganiso zaseMelika, kodwa futhi phakathi kwamazinga kazwelonke namazinga kazwelonke, naphakathi kwamazinga kazwelonke kanye nezindinganiso zaseMelika.
Amapayipi e-multi-standard emakethe awasabuswa abasebenzisi bephrojekthi, kodwa aseqalwe ngabahlinzeki (izimboni, abadayisi bemakethe).
Isizathu sokuthi kungani amapayipi ajwayelekile akhona:
Okokuqala nje, ngokuyisisekelo, kuyafezeka. Amapayipi okuthiwa ama-multi-standard, njengoba igama libonisa: ipayipi yensimbi efanayo ihlangabezana nezindinganiso ezingaphezu kwezimbili zokubulawa kanye nezinto zokwakha. Ingakwazi ukuhlangabezana kokubili lapha nalaphaya, futhi izakhi zamakhemikhali, izakhiwo zemishini, nezidingo zobuchwepheshe bezinqubo zamazinga amaningana zingahlangatshezwa ngesikhathi esisodwa.
Esikhathini sokuqala: amapayipi e-multi-standard akhuthazwa ikakhulukazi yiqembu lephrojekthi ukuze kube lula ukuthengwa kwezinto ezimaphakathi, ukonga isikhathi, umzamo kanye nenkinga;
Njengoba imakethe ishintsha kancane kancane isuka emakethe yomthengisi iye emakethe yomthengi, izinzuzo "zokonga isikhathi, umzamo kanye nenkinga" zidluliselwa kubahlinzeki bemakethe, ngezinzuzo ezibaluleke kakhulu zezomnotho. Isibonelo: uma inani elifanayo lezimali lisetshenziselwa ukukhiqiza / ukugcina impahla eyodwa evamile, manje ingakhiqiza / isitokwe ezimbili, ezintathu, ezine ... Imikhiqizo yesitoko iphelele kakhulu, futhi ingahlinzeka ngezinsizakalo ezifika ngesikhathi zezidingo ezihlosiwe, eziqondile nezihlukene zabathengi.
02—Ukwehlukahlukana kanye nokucaciswa kokuhlukaniswa kwamashubhu ajwayelekile avame ukutholakala emakethe
Kunezinhlobo ezimbili zezimpendulo ekuhlukaniseni amashubhu ajwayelekile:
1. Ngokuvumelana nezindinganiso ezihambisanayo ezifakiwe: Okwamanje, kunamashubhu ajwayelekile amaningi phakathi kwamazinga aseMelika, amashubhu anezinga eliningi phakathi kwamazinga kazwelonke, kanye namashubhu ajwayelekile phakathi kwamazinga aseMelika kanye namazinga kazwelonke. Kulindeleke ukuthi kube namashubhu ajwayelekile phakathi kwamazinga kazwelonke, amazinga aseMelika, kanye namazinga aseYurophu esikhathini esizayo;
2. Ngokwenani lezindinganiso ezifakiwe: Kukhona amashubhu ajwayelekile, amashubhu ajwayelekile amathathu, amashubhu ajwayelekile amane, amashubhu ajwayelekile amahlanu kanye nezinye izinhlobo;
Abamele abakhulu: Amashubhu ajwayelekile kabili:I-ASTM A106 B, I-ASTM A53B; ASME SA106 B, ASTM A53B; ASME SA333 Gr.6, ASTM A333 Gr.6ASME SA106 B (C), ASTM A106B (C),I-GB/T 6479Q345E, Q355E, GB/T 18984 16MnDG;I-API 5L B(amamaki ensimbi ahambisanayo ezingeni elijwayelekile), i-GB/T 9711 L245 (amabanga ensimbi ahambisanayo ezingeni elijwayelekile) [lawa mazinga amabili empeleni ayinguqulo yokuhumusha elingana ngokuphelele yezinga laseMelika kanye nendinganiso kazwelonke]
Amapayipi ajwayelekile amathathu:I-ASTM A106 B, ASTM A53 B,I-API 5L PSL1 B; ASME SA106 B, ASME SA53 B, ASTM A106B;
Amapayipi asezingeni elinesine kanye namapayipi ajwayelekile amahlanu atholakala ikakhulukazi kumapayipi ajwayelekile aseMelika namapayipi adlulisa uketshezi: Abameleli abajwayelekile:I-ASTM A106B, ASMEI-SA106 B, ASTM A53Gr.B, API 5L PSL1 B, ASTM A333 Gr.6,I-API 5L X42kanye namanye amazinga nezinto zokwakha.
Isikhathi sokuthumela: Mar-13-2025
