Cov yam ntxwv thiab cov txheej txheem vuam ntawm hluav taws xob fusion yeeb nkab fittings

Hluav taws xob fusion yeeb nkab yog ib hom yas (polyethylene) yeeb nkab uas tuaj yeem yaj los ntawm qhov kub thiab txias los ntawm qhov tam sim no kom ncav cuag qhov sib txuas.
Cov yam ntxwv ntawm polyethylene electromelting yeeb nkab fittings
Hauv kev muag khoom thiab kev siv cov yeeb nkab polyethylene, li ntawm 15% mus rau 20% ntawm kev muag khoom yog cov yeeb nkab fittings. Cov yeeb nkab fittings ntawm polyethylene yeeb nkab system feem ntau muab faib ua kub yaj yeeb nkab fittings thiab hluav taws xob yaj yeeb nkab fittings. Vim hais tias ntawm tus nqi, tus nqi ntawm cov kub yaj yeeb nkab fittings nyob rau hauv engineering daim ntaub ntawv yog ntau tshaj li ntawm hluav taws xob yaj yeeb nkab fittings, tab sis hluav taws xob yaj yeeb nkab fittings muaj ib tug tseem ceeb irreplaceable luag hauj lwm nyob rau hauv engineering thiab txij nkawm, tshwj xeeb tshaj yog nyob rau hauv kev tsim kho, hluav taws xob yaj yeeb fittings yog tsawg. cuam ​​tshuam los ntawm ib puag ncig sab nraud thiab tib neeg yam, yog li lawv muaj kev ntseeg siab dua thiab cuam tshuam. Tshwj xeeb tshaj yog nyob rau hauv cov roj pipeline engineering, daim ntawv thov ntawm hluav taws xob fusion yeeb nkab fittings yog ntau thiab ntau. Nyob rau tib lub sijhawm, vim cov txheej txheem ntau lawm, tus nqi siab thiab kev muag khoom siab ntawm cov khoom siv hluav taws xob fusion yeeb nkab fittings, cov nyiaj tau los ntawm cov hluav taws xob fusion yeeb nkab fittings ntau lawm cov lag luam kuj yog siab, thiab nws tau dhau los ua qhov chaw lag luam kub.
Nyob rau tib lub sijhawm, vim tias cov matrix ntawm cov yeeb nkab fuse yog cov khoom siv PE, cov yeeb nkab pe yog tsim los ntawm PE yeeb nkab daws ob qhov teeb meem loj ntawm cov yeeb nkab tsoos: corrosion thiab sib koom ua ke. Nws qhov zoo yog raws li nram no: (1) corrosion kuj: ntev kev pab cuam lub neej; (2) Tsis muaj kev sib txuas ntawm qhov sib koom ua ke: Kev sib txuas ntawm cov yeeb nkab molten fittings tseem ceeb kom paub meej tias tus kheej ntawm cov khoom siv sib txuas thiab cov qauv ntawm cov yeeb nkab thiab cov yeeb nkab lub cev nws tus kheej, thiab paub txog kev sib koom ua ke ntawm kev sib koom ua ke thiab cov yeeb nkab; (3) tuaj yeem tiv thaiv kev txav hauv av thiab kev thauj khoom kawg. Tom qab PE yeeb nkab system txuas nrog txoj kev vuam, kev sib koom ua ke raws li txoj kev no tuaj yeem tiv taus qhov kawg ntawm qhov tsis muaj qhov to. Nyob rau tib lub sijhawm, cov yam ntxwv ntawm kev ntxhov siab ntawm PE tuaj yeem ua rau muaj kev ntxhov siab los ntawm kev deformation, yog li feem ntau, tsis tas yuav tsum muaj kev thauj mus los kim ntawm cov pob qij txha thiab khoov. Tsis tas li ntawd, vim nws qhov siab tawv, elongation ntawm kev tawg feem ntau tshaj 500%, PE pipeline system muaj zog heev adaptability rau qhov tsis sib haum ntawm cov yeeb nkab puag.
Installation thiab siv:
1. Txiav lub raj vertically thiab tshem tawm cov oxide txheej ntawm qhov chaw ntawm lub raj tso rau hauv lub raj fuse nrog lub scraper.
2. Kos cov yeeb nkab nto nrog ib qho cim raws li qhov tob ntawm cov yeeb nkab fuse.
3. Ntxig cov yeeb nkab rau hauv lub fuse haum kom txog rau thaum qhov tob ntawm kab cim. Tom qab kev teeb tsa, lub axis ntawm cov kav dej sib tshooj nrog cov fuse fittings.
4. Siv cov khoom siv los kho cov kav dej thiab cov fittings los tiv thaiv kev sib raug zoo thiab loosening thaum vuam.
Nco tseg:
1. Thaum lub sij hawm installation, nws yog nruj me ntsis txwv tsis pub ua phem rau lub puab phab ntsa ntawm lub vuam yeeb nkab thiab vuam cheeb tsam ntawm cov yeeb nkab nrog organic teeb meem thiab lwm yam khoom.
2. Thaum welding yeeb nkab fittings, kom deb ntawm cov welded yeeb nkab fittings kom txog thaum lub vuam txias tiav rau 30S.
3. Raws li qhov kub thiab txias ua haujlwm voltage ntawm qhov chaw ib puag ncig. Thaum vuam, lub sijhawm vuam tuaj yeem raug them kom raug.
4. Raws li qhov yuav tsum tau ua ntawm lub tshuab vuam, nkag mus rau lub zog sib xws. Qhov deb ntawm cov khoom siv hluav taws xob yog los ntawm lub tshuab vuam, qhov loj dua ntawm txoj kab hluav taws xob yuav tsum tau ua kom tsis txhob muaj hluav taws xob cuam tshuam rau qhov vuam zoo.
5. Thaum txhim kho cov kav dej, lub luj tshib thiab tees yuav tsum tau ntxiv nrog cov piers lossis kho nrog cov hlua khi, thiab cov kav dej yuav tsum tau them nyiaj kom zoo.
6. Cov kav dej yuav tsum tau muab faus rau hauv cov av khov txheej, thiab cov kav dej yuav tsum tsis txhob ntub dej thaum lub sijhawm teeb tsa thiab vuam.
7. Thaum qhov kub thiab txias, qhov vuam fuse fittings yuav tsum tau insulated.
8. Thaum ua haujlwm nyob rau hauv ib puag ncig nrog qhov kub thiab txias sib txawv ntawm nruab hnub thiab hmo ntuj, nws yog ib qho tsim nyog yuav tsum siv cov cuab yeej xws li centralizer los kho cov hlab ntawm ob sab ntawm lub fuse fittings kom tsis txhob muaj qhov cuam tshuam ntawm thermal expansion thiab contraction.
9. Thaum lub caij txias, cov kav dej thiab cov fittings yuav tsum tsis txhob txav mus.