Kukosha kweASTM A139 mu Underground Natural Gasi Pipeline Kuvaka

Tsanangudzo Pfupi:

Paunenge uchigadzira mapaipi epasi pegasi echisikigo, zvakakosha kuti ushandise zvinhu zvakakodzera kuti uve nechokwadi chekuchengetedza, kusimba, uye kushanda nesimba.Chimwe chinhu chinowanzo shandiswa pakugadzira aya mitsara yegasi iASTM A139, inova ndiyo yakajairwa dhizaini yespiral welded kabhoni simbi pombi.Mune ino blog, isu tichaongorora kukosha kweASTM A139 mukuvakwa kwepombi yepasi pegasi yechisikigo uye kuti inoita basa rakakosha sei mukuona kutendeseka uye kuvimbika kweizvi zvakakosha zvivakwa.

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Spiral welded kabhoni simbi pombi yakagadzirwa kutiASTM A139yakanyatsogadzirirwa kushandiswa kwepasi pevhu sekufambiswa kwegasi rechisikigo uye kugovera masisitimu.Mapombi aya anogadzirwa pachishandiswa yakasarudzika welding process inogadzira majoini akasimba uye akasimba, ayo akakosha kumirisana nepasi pevhu uye mamiriro ezvakatipoteredza aya mapombi achaiswa.

Mechanical Property

	Grade 1	Grade 2	Grade 3
Yield Point kana goho simba, min, Mpa (PSI)	205(30 000)	240(35 000)	310(45 000)
Kusimba simba, min, Mpa (PSI)	345(50 000)	415(60 000)	455(66 0000)

Iyo spiral welding process inoshandiswa muASTM A139 inopa pombi kuenderana uye yakatsetseka yemukati nzvimbo, iyo yakakosha kuve nechokwadi chekuyerera kwakanaka kwegasi rechisikigo kuburikidza nepombi.Mapombi aya anowanikwawo mune zvakasiyana-siyana zvemadhayamita uye madziro makubvu, achibvumira kuchinjika mukugadzira uye kuvaka kuti isangane nezvinodiwa zvegasi rechisikigo kutapurirana kana kugovera system.

Pamusoro pekuvimbika uye kusimba, pombi yeASTM A139 inopa kushora, izvo zvakakosha kuti ive nechokwadi chekugara kwenguva refu kwepasi pevhu gasi pombi.Iyo kabhoni simbi inoshandiswa mumapombi aya yakanyatsogadzirwa kuti irambe corrosion, kuve nechokwadi chekuti mapombi anoramba akasimba uye asingabvire kwemakore anotevera.

Kuchengetedza kwakakosha zvakanyanya mukuvakwa kwemapaipi epasi pegasi chaiwo.Mapaipi eASTM A139 anogadzirwa uye akaedzwa kune yakasimba indasitiri zviyero uye zvakatemwa, kuve nechokwadi kuti vanogona kumirisana nematambudziko akasiyana epasi pevhu kunyorera.Izvi zvinopa zvechisikigo gasi zvinoshandiswa, zvinodzora uye veruzhinji runyararo rwepfungwa vachiziva kuti zvivakwa zvinounza gasi rechisikigo zvakavimbika uye zvakachengeteka.

Mukupedzisa, ASTM A139spiral welded carbon steel pipeinoita basa rakakosha mukuvaka mapaipi egasi repasi pevhu.Kugara kwadzo, corrosion kuramba uye kutevedzera zviyero zveindasitiri zvinoita kuti ive yakanakira mapurojekiti akakosha seizvi.Kana zvasvika pakuve nechokwadi chekuchengetedza, kuvimbika, uye kushanda kwegasi rechisikigo kutapurirana uye kugovera masisitimu, kushandisa ASTM A139 pombi isarudzo isingagone kufuratirwa.Nekusarudza zvinhu zvakafanira zvezvishandiso izvi zvepasi pevhu, tinogona kuve nechokwadi chekuti gasi redu rechisikigo zvivakwa zvinoramba zvakachengeteka uye zvakavimbika kuzvizvarwa zvinouya.

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