1. Ukwakhiwa kwemibhobho ye-nitrogen kufuneka kulandele iinkcukacha
"Inkcazo yobunjineli bemibhobho yesinyithi kunye nokwamkelwa"
"Inkcazo yoyilo lwesikhululo seoksijini"
"Imimiselo yolawulo lokhuseleko kunye nokulawulwa kwemibhobho yoxinzelelo"
"Inkcazo yokunciphisa ubunjineli kunye nokwamkelwa"
"Inkcazo yokwakha kunye nokwamkelwa kobunjineli be-welding yezixhobo zentsimi kunye nemibhobho yoshishino"
2. Iimfuno zemibhobho kunye nezincedisi
2.1 Yonke imibhobho, izifakelo zemibhobho, kunye neevalvu mazibe nezatifikethi zangaphambili zasefektri.Ngaphandle koko, khangela izinto ezingekhoyo kunye nezalathi zazo kufuneka zihlangabezane nemigangatho yangoku yesizwe okanye yomphathiswa.
2. 2 Yonke imibhobho kunye nezixhobo kufuneka zihlolwe ngokubonakalayo, njengokuba kukho iziphene ezifana neentanda, imingxuma eyanciphayo, i-slag inclusions kunye nesikhumba esinzima ukuqinisekisa ukuba umphezulu ugudile kwaye ucocekile;kuba iivalve, iimvavanyo zamandla kunye nokuqina kufuneka zenziwe nganye nganye (uxinzelelo lovavanyo luxinzelelo lwegama 1.5 Ixesha lokubamba uxinzelelo alikho ngaphantsi kwemizuzu emi-5);i-valve yokhuseleko kufuneka ihlaziywe ngaphezu kwamaxesha e-3 ngokwemigaqo yoyilo.
3. Umbhobho welding
3.1 Ukongeza kokuhlangabezana neemfuno zemizobo, iimeko zobugcisa be-welding kufuneka zenziwe ngokuhambelana nemimiselo yamazwe ngamazwe.
3.2 Iiwelds kufuneka zihlolwe nge-radiographic okanye i-ultrasonic ngokuhambelana nobuninzi obuchaziweyo kunye nenqanaba lomgangatho.
3.3 Imibhobho yentsimbi yekhabhoni edibeneyo kufuneka ixhaswe nge-argon arc.
4. Ukukhutshwa kwepayipi kunye nokususwa komhlwa
Sebenzisa i-sandblasting kunye nokuchola ukususa umhlwa kunye nokuthoba udonga lwangaphakathi lombhobho.
5. Izilumkiso zokufakelwa kombhobho
5.1 Xa umbhobho uqhagamshelwe, mawungatshatiswa ngenkani.
5.2 Qwalasela ukuthe tye kwesiqhagamshelanisi esimpundu somlomo.Ukulinganisa izibuko kumgama we-200mm.Ukuphambuka okuvumelekileyo ngu-1mm / m, ukuphambuka kobude obupheleleyo bungaphantsi kwe-10mm, kwaye ukudibanisa phakathi kweeflange kufuneka kuhambelane.
5.3.Sebenzisa izihlanganisi ezinemisonto ukufaka i-PTFE ngokupakisha, kwaye akuvumelekanga ukusebenzisa ioli yesesame.
5.4.Umbhobho kunye nenkxaso kufuneka ihlulwe nge-non-chloride ion plastic sheet;umbhobho eludongeni kufuneka ube nemikhono, kwaye ubude bomkhono akufanele bube ngaphantsi kobunzima bodonga, kwaye i-gap kufuneka izaliswe ngezinto ezingenakutsha.
5.5.Umbhobho wenitrogen kufuneka ube nokhuseleko lombane kunye nezixhobo zokumisa i-electrostatic discharge.
5.6.Ubunzulu bombhobho ongcwatyiweyo abukho ngaphantsi kwe-0.7m (umphezulu wombhobho ungaphezulu komhlaba), kwaye umbhobho ongcwatyiweyo kufuneka unyangwe nge-anticorrosion.
6. Uvavanyo loxinzelelo lwepayipi kunye nokucoca
Emva kokufakwa kombhobho, yenza uvavanyo lwamandla kunye nokuqina, kwaye imimiselo imi ngolu hlobo lulandelayo:
| Uxinzelelo lokusebenza | Uvavanyo lwamandla | Ukuvuza uvavanyo | ||
| MPa | ||||
| Media | Uxinzelelo (MPa) | Media | uxinzelelo (MPa) | |
| <0.1 | Umoya | 0.1 | Umoya okanye i-N2 | 1 |
| ≤3 | umoya | 1.15 | Umoya okanye i-N2 | 1 |
| amanzi | 1.25 | |||
| ≤10 | amanzi | 1.25 | Umoya okanye i-N2 | 1 |
| 15 | amanzi | 1.15 | Umoya okanye i-N2 | 1 |
Phawula:
①Umoya kunye nenitrogen kufuneka yome kwaye ingabinaoyile;
②Amanzi acocekileyo angenawo ioli, umxholo we-chloride ion wamanzi awudluli kwi-2.5g/m3;
③Lonke uvavanyo loxinzelelo lobunzulu kufuneka lwenziwe ngokucotha inyathelo ngenyathelo.Xa inyuka ukuya kwi-5%, kufuneka ihlolwe.Ukuba akukho ukuvuza okanye into engaqhelekanga, uxinzelelo kufuneka lunyuswe inyathelo ngesinyathelo kwi-10% yoxinzelelo, kwaye ukuzinza kwe-voltage kwinqanaba ngalinye akufanele kube ngaphantsi kwemizuzu emi-3.Emva kokufikelela kuxinzelelo, kufuneka igcinwe imizuzu emi-5, kwaye ifanelekile xa kungekho deformation.
④ Uvavanyo lokuqina luya kuhlala kwiiyure ezingama-24 emva kokufikelela kuxinzelelo, kwaye umyinge wokuvuza kweyure kwimibhobho yangaphakathi kunye nomsele kufuneka ube ngu-≤0.5% njengoko ufanelekile.
⑤Emva kokuphumelela uvavanyo lwe-tightness, sebenzisa umoya owomileyo ongenawo ioli okanye i-nitrogen ukucoca, kunye nesantya sokuhamba esingekho ngaphantsi kwe-20m / s, kude kube kungabikho mhlwa, i-welding slag kunye nezinye i-debris kumbhobho.
7. Ipeyinti yepayipi kunye nomsebenzi ngaphambi kokuveliswa:
7.1.Umhlwa, i-welding slag, i-burr kunye nezinye izinto ezingcolileyo kwindawo epeyintiweyo kufuneka zisuswe ngaphambi kokupenda.
7.2.Faka inayitrojeni endaweni yayo phambi kokufakwa kwimveliso de ucoceko lube lufanelekile.
Ixesha lokuposa: Jun-25-2021