Mapaipi a mankhwala ndi ma valve ndi gawo lofunika kwambiri popanga mankhwala komanso kulumikizana kwa zida zosiyanasiyana za mankhwala. Kodi ma valve 5 odziwika bwino m'mapaipi a mankhwala amagwira ntchito bwanji? Cholinga chachikulu? Kodi ma valve a mankhwala ndi ma valve olumikizira ndi chiyani? (Mitundu 11 ya mapaipi + mitundu 4 ya ma valve a mapaipi + ma valve akuluakulu 11) Mapaipi a mankhwala, zonsezi zafotokozedwa bwino m'nkhani imodzi!

Mapaipi a mankhwala ndi ma valve olumikizira

Mitundu ya mapaipi a mankhwala imagawidwa m'magulu malinga ndi zinthu: mapaipi achitsulo ndi mapaipi osakhala achitsulo.

Chubu chachitsulo

Mapaipi achitsulo chopangidwa ndi chitsulo, mapaipi achitsulo chopangidwa ndi ...

①Chitoliro chachitsulo chopangidwa ndi chitsulo:

Chitoliro chachitsulo chopangidwa ndi chitsulo ndi chimodzi mwa mapaipi omwe amagwiritsidwa ntchito kwambiri m'mapaipi a mankhwala.

Chifukwa cha kufooka kwake komanso kulimba kosagwirizana, ndi yoyenera kunyamula zinthu zotsika mphamvu zokha, ndipo si yoyenera kunyamula nthunzi yotentha kwambiri komanso yothamanga kwambiri komanso zinthu zoopsa komanso zophulika. Amagwiritsidwa ntchito kwambiri m'mapaipi operekera madzi pansi pa nthaka, mapaipi a gasi ndi mapaipi a zimbudzi. Mafotokozedwe a mapaipi achitsulo chopangidwa ndi chitsulo amafotokozedwa ndi Ф mkati mwa diameter × makulidwe a khoma (mm).

②Chitoliro chachitsulo chosokedwa:

Mapaipi achitsulo chopingasa amagawidwa m'mapaipi wamba a gasi wamadzi (kukana kuthamanga kwa 0.1 ~ 1.0MPa) ndi mapaipi okhuthala (kukana kuthamanga kwa 1.0 ~ 0.5MPa) malinga ndi kuthamanga kwawo kogwira ntchito.

Kawirikawiri imagwiritsidwa ntchito kunyamula madzi opanikizika monga madzi, gasi, nthunzi yotentha, mpweya wopanikizika, ndi mafuta. Mapaipi opangidwa ndi galvanized amatchedwa mapaipi achitsulo opangidwa ndi galvanized kapena mapaipi opangidwa ndi galvanized. Omwe sapangidwa ndi galvanized amatchedwa mapaipi achitsulo chakuda. Mafotokozedwe ake amafotokozedwa molingana ndi mainchesi oyambira. Mainchesi oyambira ndi 6mm ndipo mainchesi oyambira ndi 150mm.

③Chitoliro chachitsulo chosasokonekera:

Ubwino wa chitoliro chachitsulo chopanda msoko ndi khalidwe lake lofanana komanso mphamvu zake zambiri.

Zipangizo zake ndi chitsulo cha kaboni, chitsulo chapamwamba kwambiri, chitsulo chopanda aloyi wambiri, chitsulo chosapanga dzimbiri, ndi chitsulo chosatentha. Chifukwa cha njira zosiyanasiyana zopangira, pali mitundu iwiri: mapaipi achitsulo osapanga dzimbiri opindidwa ndi kutentha ndi mapaipi achitsulo osapanga dzimbiri opindidwa ndi ozizira. Mu uinjiniya wa mapaipi, mapaipi opindidwa ndi kutentha amagwiritsidwa ntchito nthawi zambiri pamene m'mimba mwake muli oposa 57mm, ndipo mapaipi opindidwa ndi ozizira amagwiritsidwa ntchito nthawi zambiri pamene m'mimba mwake muli pansi pa 57mm.

Mapaipi achitsulo chosasunthika nthawi zambiri amagwiritsidwa ntchito kunyamula mitundu yonse ya mpweya wopanikizika, nthunzi ndi zakumwa, ndipo amatha kupirira kutentha kwambiri (pafupifupi 435°C). Mapaipi achitsulo chosungunuka amagwiritsidwa ntchito kunyamula zinthu zowononga, zomwe mapaipi achitsulo chosungunuka amatha kupirira kutentha mpaka 900-950℃. Mafotokozedwe a chitoliro chachitsulo chosasunthika amafotokozedwa ndi Ф mkati mwa diameter × makulidwe a khoma (mm).

Chitoliro chozizira kwambiri chakunja ndi 200mm, ndipo chitoliro chotentha kwambiri chakunja ndi 630mm. Mapaipi achitsulo chosasunthika amagawidwa m'mapaipi osasinthika komanso mapaipi apadera osasinthika malinga ndi momwe amagwiritsidwira ntchito, monga mapaipi osasinthika a petroleum, mapaipi osasinthika a boiler, ndi mapaipi osasinthika a feteleza.

④ Chitoliro cha mkuwa:

Chubu cha mkuwa chili ndi mphamvu yabwino yosamutsa kutentha.

Amagwiritsidwa ntchito makamaka m'mapaipi a zida zosinthira kutentha ndi zida zowunikira, machubu oyezera kuthamanga kwa zida kapena zotumizira madzi opanikizika, koma kutentha kukakhala kokwera kuposa 250 ℃, sikoyenera kugwiritsidwa ntchito pansi pa kupanikizika. Chifukwa mtengo wake ndi wokwera mtengo, nthawi zambiri amagwiritsidwa ntchito m'malo ofunikira.

⑤Chubu cha aluminiyamu:

Aluminiyamu ili ndi kukana bwino dzimbiri.

Machubu a aluminiyamu nthawi zambiri amagwiritsidwa ntchito kunyamula zinthu monga sulfuric acid yokhazikika, acetic acid, hydrogen sulfide ndi carbon dioxide, ndipo amagwiritsidwanso ntchito kwambiri mu zosinthira kutentha. Machubu a aluminiyamu sagonjetsedwa ndi alkali ndipo sangagwiritsidwe ntchito kunyamula mayankho a alkaline ndi mayankho okhala ndi ma chloride ions.

Popeza mphamvu ya makina a chubu cha aluminiyamu imachepa kwambiri kutentha kukakwera, kutentha kwa makina a aluminiyamu sikungapitirire 200°C, ndipo kutentha kwa makinawo kudzakhala kotsika pa payipi yopanikizika. Aluminiyamu ili ndi mphamvu zabwino kwambiri pamakina kutentha kotsika, kotero machubu a aluminiyamu ndi aluminiyamu amagwiritsidwa ntchito kwambiri pazida zolekanitsa mpweya.

⑥ Chitoliro cha lead:

Mapaipi a lead nthawi zambiri amagwiritsidwa ntchito ngati mapaipi onyamulira zinthu zokhala ndi asidi. Amatha kunyamula 0.5%-15% sulfuric acid, carbon dioxide, 60% hydrofluoric acid, ndi acetic acid yokhala ndi kuchuluka kosakwana 80%. Sikoyenera kunyamula nitric acid, hypochlorous acid ndi zinthu zina. Kutentha kwakukulu kwa chitoliro cha lead ndi 200℃.

Chubu chosakhala chachitsulo

Chitoliro cha pulasitiki, chitoliro cha pulasitiki, chitoliro chagalasi, chitoliro cha ceramic, chitoliro cha simenti.

①Chitoliro cha pulasitiki:

Ubwino wa mapaipi apulasitiki ndi kukana dzimbiri bwino, kulemera kopepuka, kuumba kosavuta komanso kukonzedwa mosavuta.

Choyipa chake ndi mphamvu yochepa komanso kukana kutentha kwambiri.

Pakadali pano, mapaipi apulasitiki omwe amagwiritsidwa ntchito kwambiri ndi mapaipi olimba a polyvinyl chloride, mapaipi ofewa a polyvinyl chloride, mapaipi a polyethylene,mapaipi a polypropylene, ndi mapaipi achitsulo okhala ndi polyolefin ndi polychlorotrifluoroethylene opoperedwa pamwamba.

②Chubu cha rabara:

Chubu cha rabara chili ndi kukana dzimbiri bwino, kulemera kwake kochepa, kusungunuka bwino, kusinthasintha komanso kosavuta kukhazikitsa ndi kusokoneza.

Machubu a rabara omwe amagwiritsidwa ntchito nthawi zambiri amapangidwa ndi rabala lachilengedwe kapena labala lopangidwa, ndipo ndi oyenera nthawi zomwe kupanikizika sikokwera kwambiri.

③Chubu chagalasi:

Chubu chagalasi chili ndi ubwino wokana dzimbiri, kuonekera bwino, kuyeretsa kosavuta, kukana kuzizira, komanso mtengo wotsika. Vuto lake ndilakuti ndi lofooka ndipo silingathe kupirira kupsinjika.

Kawirikawiri imagwiritsidwa ntchito poyesa kapena ntchito yoyesera.

④Chubu cha ceramic:

Zipangizo zadothi zopangidwa ndi mankhwala zimafanana ndi galasi ndipo zimakhala ndi kukana dzimbiri bwino. Kuwonjezera pa hydrofluoric acid, fluorosilicic acid ndi alkalis amphamvu, zimatha kupirira kuchuluka kwa ma inorganic acid, organic acid ndi organic solvents osiyanasiyana.

Chifukwa cha mphamvu zake zochepa komanso kufooka kwake, nthawi zambiri amagwiritsidwa ntchito kuchotsa zinthu zowononga m'mabotolo a zimbudzi ndi mapaipi opumira mpweya.

⑤Chitoliro cha simenti:

Imagwiritsidwa ntchito makamaka nthawi zomwe kufunikira kwa kuthamanga ndi kutseka kwa chitoliro cholumikizira sikuli kokwera, monga mapaipi a zinyalala zapansi pa nthaka ndi mapaipi otulutsira madzi.