Kodi Pipe ndi chiyani?

Chitoliro ndi chubu chopanda kanthu chomwe chili ndi gawo lozungulira lopatsirana potengera zinthu. Zogulitsazo zimaphatikizapo madzi, gasi, pellets, ufa ndi zina. Mawu akuti chitoliro amagwiritsidwa ntchito monga osiyanitsidwa ndi chubu kuti agwiritse ntchito kuzinthu za tubular za miyeso yomwe imagwiritsidwa ntchito kwambiri pamapaipi ndi mapaipi. Patsambali, mapaipi akugwirizana ndi zofunikira za:ASME B36.10Chitoliro Chachitsulo Chowotcherera ndi Chopanda Msoko ndiASME B36.19Chitoliro chachitsulo chosapanga dzimbiri chidzakambidwa.

Chitoliro kapena Tube?

M'dziko la mapaipi, mawu akuti chitoliro ndi chubu adzagwiritsidwa ntchito. Chitoliro chimadziwika ndi "Nominal Pipe Size" (NPS), ndi makulidwe a khoma amatanthauzidwa ndi "Nambala ya Pulogalamu" (SCH).

Chubu chimakonda kufotokozedwa ndi mainchesi ake akunja (OD) ndi makulidwe a khoma (WT), owonetsedwa mu Birmingham wire gage (BWG) kapena mu chikwi cha inchi.

Chitoliro: NPS 1/2-SCH 40 ndi mpaka kunja m'mimba mwake 21,3 mm ndi khoma makulidwe a 2,77 mm.
Chubu: 1/2 ″ x 1,5 ndi m'mimba mwake mpaka 12,7 mm ndi makulidwe a khoma la 1,5 mm.

Zomwe zimagwiritsidwa ntchito pachubu zili mu Heat Exchangers, mizere ya zida ndi zolumikizira zazing'ono pazida monga compressor, boilers etc..

Zida za Pipe

Makampani opanga mainjiniya ali ndi mainjiniya azinthu kuti adziwe zida zomwe zingagwiritsidwe ntchito pamapaipi. Chitoliro chambiri ndi chachitsulo cha kaboni (malingana ndi ntchito) chimapangidwa kumitundu yosiyanasiyana ya ASTM.

Chitoliro chachitsulo cha kaboni ndi cholimba, chodumphira, chowotcherera, chotheka, chomveka, chokhazikika ndipo nthawi zonse chimakhala chotsika mtengo kuposa chitoliro chopangidwa kuchokera kuzinthu zina. Ngati chitoliro cha kaboni-chitsulo chingathe kukwaniritsa zofunikira za kuthamanga, kutentha, kukana kwa dzimbiri ndi ukhondo, ndiye chisankho chachilengedwe.

Chitoliro chachitsulo chimapangidwa kuchokera ku chitsulo chachitsulo ndi ductile-iron. Zomwe zimagwiritsidwa ntchito kwambiri ndi madzi, gasi ndi zimbudzi.

Chitoliro cha pulasitiki chingagwiritsidwe ntchito popereka madzi owononga kwambiri, ndipo ndi othandiza makamaka pogwira mpweya wowononga kapena woopsa komanso kusungunula ma mineral acid.

Zitsulo zina ndi Aloyi chitoliro chopangidwa kuchokera mkuwa, lead, faifi tambala, mkuwa, aluminiyamu ndi zitsulo zosiyanasiyana zosapanga dzimbiri zitha kupezeka mosavuta. Zidazi ndizokwera mtengo ndipo zimasankhidwa nthawi zambiri mwina chifukwa cha kukana kwa dzimbiri ndi mankhwala, Kutumiza Kwawo Kutentha kwabwino, kapena chifukwa champhamvu yolimba pakutentha kwambiri. Ma aloyi amkuwa ndi amkuwa ndi achikhalidwe chamizere ya zida, kukonza chakudya ndi zida zosinthira kutentha. Zitsulo zosapanga dzimbiri zikugwiritsidwa ntchito kwambiri pa izi.

Lined Pipe

Zida zina zomwe zafotokozedwa pamwambapa, zaphatikizidwa kuti zipange machitidwe a mapaipi okhala ndi mizere.
Mwachitsanzo, chitoliro cha chitsulo cha kaboni chikhoza kukhala mkati ndi zinthu zomwe zimatha kupirira kuukira kwa mankhwala zomwe zimalola kugwiritsa ntchito kunyamula madzi owononga. Linings (Teflon®, mwachitsanzo) angagwiritsidwe ntchito pambuyo popanga mapaipi, kotero n'zotheka kupanga spools lonse la chitoliro musanayambe kuyika.

Zigawo zina zamkati zingakhale: galasi, mapulasitiki osiyanasiyana, konkire etc., komanso zokutira, monga Epoxy, Bituminous Asphalt, Zink etc. zingathandize kuteteza chitoliro chamkati.

Zinthu zambiri ndizofunikira posankha zinthu zoyenera. Chofunika kwambiri mwa izi ndi kupanikizika, kutentha, mtundu wa mankhwala, miyeso, ndalama ndi zina.