Mavavu a globe amagwiritsidwa ntchito kwambiri ndipo ali ndi mitundu yambiri. Mitundu yayikulu ndi mavuvu a globe, ma valve a globe, mavuvu amkati, mavavu amkati, mavavu a zitsulo zosapanga dzimbiri, ma valve a DC globe, mavavu a singano, ma valve amtundu wa Y, ma valve a ngodya, ndi zina zambiri. , valavu yachitsulo yapadziko lonse, valavu yachitsulo yopangidwa ndi zitsulo; momwe mungasankhire mtunduwo ndi wofunika kwambiri, uyenera kusankhidwa molingana ndi mawonekedwe a sing'anga, kutentha, kupanikizika ndi ntchito. Malamulo osankhidwa mwapadera ndi awa:
1. Valavu ya pneumatic globe iyenera kusankhidwa pa payipi kapena chipangizo cha kutentha kwambiri ndi sing'anga yothamanga kwambiri. Monga kutentha kwambiri ndi mapaipi othamanga kwambiri m'mafakitale amagetsi otentha ndi machitidwe a petrochemical;
2. Valavu yoyendera molunjika iyenera kugwiritsidwa ntchito papaipi pomwe zofunikira za kukana kwa convection sizolimba;
3. Valavu ya singano, valavu ya zida, valavu ya chitsanzo, valve gauge valve, etc. ingagwiritsidwe ntchito pa valve yaing'ono ya pneumatic globe;
4. Pali kusintha kwa kayendedwe ka kayendedwe kake kapena kupanikizika, koma zofunikira kuti zisinthidwe molondola sizili zapamwamba, ndipo m'mimba mwake wa payipi ndi wochepa. Mwachitsanzo, papaipi yokhala ndi m'mimba mwake mwadzina ≤50mm, ndi bwino kugwiritsa ntchito valavu yoyimitsa pneumatic ndi valavu yowongolera magetsi;
5. Kwa osavuta kulimbitsa crystallization sing'anga, sankhani valavu yotseka yosungira kutentha;
6. Pamalo othamanga kwambiri, ma valve opangidwa ndi globe ayenera kusankhidwa;
7. Small feteleza ndi feteleza lalikulu mu kupanga mafakitale kupanga ayenera kusankha mkulu kuthamanga ngodya valavu padziko lonse kapena mkulu kuthamanga ngodya throttle valavu ndi mwadzina kuthamanga PN160 mwadzina kuthamanga 16MPa kapena PN320 mwadzina kuthamanga 32MPa;
8. Mu msonkhano wa desiliconization ndi mapaipi omwe amakonda kukokera mu alumina Bayer ndondomeko, n'zosavuta kusankha valavu ya globe yopita mwachindunji kapena valavu yowonongeka yomwe ili ndi thupi lapadera la valve, mpando wochotsamo valavu, ndi simenti. carbide kusindikiza awiri;
9. M'mapulojekiti opangira madzi ndi kutentha m'mamangidwe a mizinda, njira yodziwika bwino ndi yaying'ono, ndipo valavu yotseketsa pneumatic, valve balance kapena plunger valve ingasankhidwe, mwachitsanzo, njira yodziwika bwino ndi yosachepera 150mm.
10. Ndikwabwino kusankha valavu ya globe yotumizidwa kunja kwa high kutentha nthunzi ndi poizoni ndi zoipa TV.
11. Pa valavu ya acid-base globe, sankhani valavu yachitsulo chosapanga dzimbiri kapena valavu ya globe yokhala ndi fluorine.
Nthawi yotumiza: Apr-29-2022
