1.Kupititsa patsogolo njira yopukuta makina a3PE anti-corrosion zokutira
① Pezani kapena kupanga zida zabwinoko zotenthetsera m'malo mwa tochi yodulira gasi. Zida zotenthetsera ziyenera kuwonetsetsa kuti malo opoperapo motowo ndi aakulu mokwanira kutenthetsa gawo lonse lopaka kuti lichotsedwe nthawi imodzi, ndipo panthawi imodzimodziyo onetsetsani kuti kutentha kwa lawi kuli pamwamba pa 200 ° C.
② Pezani kapena pangani chida chabwino kwambiri chovula m'malo mwa fosholo yafulati kapena nyundo. Chida chovunda chiyenera kukwaniritsa mgwirizano wabwino ndi kunja kwa payipi, kuyesa kukanda zokutira zotsutsana ndi dzimbiri pamtunda wakunja kwa payipi nthawi imodzi, ndikuwonetsetsa kuti zokutira zotsutsana ndi dzimbiri zimamangiriridwa ku peeling. chida ndi zosavuta kuyeretsa.

2. Electrochemical peeling ya 3PE anti-corrosion coating
Ogwira ntchito zaumisiri ndi zomangamanga amatha kusanthula zomwe zimayambitsa kuwonongeka kwa mapaipi okwiriridwa ndi gasi ndi zolakwika za 3PE anti-corrosion ❖ kuyanika, ndikupeza njira zatsopano zowonongera ndikuchotsa zokutira zotsutsana ndi dzimbiri.
(1) Zomwe zimayambitsa kuwonongeka kwa mapaipi akunja ndikuwunika zolakwika za 3PE anti-corrosion coating
① Kuwonongeka kwa mapaipi okwiriridwa
Kusokera kwapano ndi komwe kumachitika chifukwa cha kukhudzidwa kwa zinthu zakunja, ndipo kuthekera kwake kumayesedwa ndi njira yofufuzira polarization [1]. Kusokera panopa ali lalikulu dzimbiri mwamphamvu ndi ngozi, osiyanasiyana ndi amphamvu randomness, makamaka kukhalapo alternating panopa kungayambitse depolarization wa elekitirodi pamwamba ndi kukulitsa dzimbiri mapaipi. Kusokoneza kwa AC kumatha kufulumizitsa ukalamba wa anti-corrosion wosanjikiza, kupangitsa kuti anti-corrosion wosanjikiza adulidwe, kusokoneza magwiridwe antchito achitetezo a cathodic, kuchepetsa mphamvu yapano ya anode yansembe, ndikupangitsa kuti payipi isapezeke. chitetezo champhamvu choletsa dzimbiri.
② Kuwononga chilengedwe kwa mapaipi okwiriridwa

Zomwe zimakhudzidwa kwambiri ndi nthaka yozungulira pakuwonongeka kwa mapaipi a gasi okwiriridwa ndi izi: a. Mphamvu ya mabatire oyambirira. Ma cell a Galvanic opangidwa ndi electrochemical inhomogeneity ya zitsulo ndi media ndizofunikira chifukwa cha dzimbiri mu mapaipi okwiriridwa. b. Mphamvu ya madzi. Madzi okhutira ali ndi chikoka chachikulu pa dzimbiri mapaipi gasi, ndi madzi m'nthaka ndi chikhalidwe zofunika ionization ndi kuvunda kwa electrolyte nthaka. c. Zotsatira za resistivity. Zing'onozing'ono nthaka resistivity, mphamvu corrosiveness kwa zitsulo mapaipi. d. Zotsatira za acidity. Mipope imawonongeka mosavuta mu dothi la acidic. Dothi likakhala ndi ma organic acid ambiri, ngakhale pH ili pafupi kusalowerera ndale, imawononga kwambiri. e. Zotsatira za mchere. Mchere m'nthaka sikuti umangokhala ndi gawo la conductive ndondomeko ya dzimbiri la nthaka, komanso nawo pazochitika za mankhwala. Batire yosiyana ya ndende ya mchere yomwe imapangidwa ndi kukhudzana kwa payipi ya gasi ndi dothi lokhala ndi mchere wosiyanasiyana kumapangitsa kuti payipi ikhale pamalo okhala ndi mchere wambiri ndikuwonjezera dzimbiri. f. Zotsatira za porosity. Kuchuluka kwa nthaka kumathandizira kulowetsa mpweya wa okosijeni ndi kusunga madzi m'nthaka, ndipo kumalimbikitsa kuchitika kwa dzimbiri.

③ Kusanthula kwachilema kwa 3PE anti-corrosion coating adhesion [5]
Chinthu chofunikira chomwe chimakhudza kumamatira pakati pa 3PE anti-corrosion ❖ kuyanika ndi chitoliro chachitsulo ndi khalidwe lapamwamba la mankhwala ndi kuipitsidwa kwa chitoliro chachitsulo. a. Pamwambapo ndi mvula. Pamwamba pa chitsulo chitoliro pambuyo derusting zakhudzana ndi madzi ndi fumbi, amene sachedwa dzimbiri akuyandama, zomwe zingakhudze adhesion pakati sintered epoxy ufa ndi pamwamba pa chitoliro zitsulo. b. Kudetsa fumbi. Fumbi lowuma mumlengalenga limagwera pamwamba pa chitoliro chachitsulo chochotsedwa ndi dzimbiri, kapena chimagwera pazida zotumizira ndipo kenako imayipitsa pamwamba pa chitoliro chachitsulo, chomwe chingayambitsenso kuchepa kwa kumamatira. c. Pores ndi thovu. Ma pores omwe amayamba chifukwa cha chinyezi amakhala pamtunda komanso mkati mwa HDPE wosanjikiza, ndipo kukula kwake ndi kugawa kumakhala kofanana, komwe kumakhudza kumamatira.
(2) Malangizo a electrochemical kuvula zokutira za 3PE anti-corrosion
Kupyolera mu kusanthula zomwe zimayambitsa dzimbiri kunja kwa mpweya kukwiriridwa mapaipi ndi adhesion zolakwika za 3PE odana dzimbiri zokutira, chitukuko cha chipangizo zochokera njira electrochemical ndi njira yabwino mwamsanga kuthetsa vuto panopa, ndipo palibe chipangizo chotero. pa msika pano.
Pamaziko a kuganizira mozama zakuthupi za 3PE anti-corrosion zokutira, pophunzira njira zowonongeka za nthaka ndi zoyesera, njira yowonongeka yokhala ndi chiwombankhanga chachikulu kuposa nthaka imapangidwa. Gwiritsani ntchito zolimbitsa thupi kuti mupange zinthu zina zakunja, kuti zokutira za 3PE zotsutsana ndi dzimbiri zigwirizane ndi ma reagents amagetsi, potero kuwononga kumamatira kwake ndi payipi kapena kusungunula mwachindunji zokutira zotsutsana ndi dzimbiri.

3.Miniaturization ya ma strippers apano akuluakulu

PetroChina West-East Gas Pipeline Company yapanga zida zofunika kwambiri zokonzera mwadzidzidzi mapaipi amafuta ndi gasi akutali - mapaipi akulu akulu m'mimba mwake akunja othana ndi dzimbiri wosanjikiza. Zipangizozi zimathetsa vuto lomwe anti-corrosion wosanjikiza ndizovuta kuchotsa pakukonzanso kwadzidzidzi kwa mapaipi akulu amafuta ndi gasi, zomwe zimakhudza magwiridwe antchito adzidzidzi. Makina opukutira amtundu waukulu wa m'mimba mwake akunja oletsa dzimbiri amagwiritsa ntchito mota ngati mphamvu yovumbula kuyendetsa burashi yozungulira kuti izungulire kuchotsa wosanjikiza wotsutsana ndi dzimbiri wokutidwa pakhoma lakunja, ndikuyenda mozungulira mozungulira pamwamba. a anti-corrosion layer a pipeline kuti amalize kusenda wosanjikiza wa mapaipi oletsa dzimbiri. Kuwotcherera ntchito kumapereka zinthu zabwino. Ngati zida zazikuluzikuluzi ndizochepa, zoyenerera mapaipi akunja ang'onoang'ono komanso kutchuka, zidzakhala ndi phindu labwino pazachuma komanso chikhalidwe cha anthu pakumanga kwadzidzidzi kwa gasi. Momwe mungachepetse payipi yamtundu wa crawler-diameter yayikulu yakunja ya anti-corrosion layer stripper ndi njira yabwino yofufuzira.