I-1. I-Nitrogel Pipeliel ye-Nitrogen kufuneka ilandele imigaqo
"Ukuchazwa kwePidieli ye-Meyidi yeShishini kunye nokwamkelwa"
"I-OXCYGN YESICWANGCISO SOKUGQIBELA"
"IMIMISELO NGOLAWULO LOKHUSELEKO NOKUGCINWA KWEEMPAHLA YOKUGQIBELA"
"Ukucaciswa kokugcwala ubunjineli kunye nokwamkelwa"
"Isiseko sokwakha kunye nokwamkela ubunjineli be-welding yezixhobo zentsimi kunye nemisebenzi yemizi-mveliso"
I-2. I-Pipeliel kunye neemfuno zeNgxowa-mali
2.1 Yonke imibhobho, izityholo zombhobho, kunye neevalve kufuneka zibe nezatifikethi zefektri. Ngaphandle koko, jonga izinto ezingekhoyo kunye nezalathi zazo kufuneka zifezekise imigangatho yelizwe okanye yolungiselelo.
2. 2 Yonke imibhobho kunye nezinto zokwenza izinto kufuneka zihlolwe ngokubonakalayo, njengokuba injalo iziphene ezifana ne-rocks, imingxunya, imingxunya ye-stag, i-slag iqhina ukuqinisekisa ukuba umphezulu ucocekile kwaye ucocekile; Kwiivumba, amandla kunye novavanyo lokuqina kufuneka luqhutyekwe ngenye (uxinzelelo lovavanyo luphawu olwenziwe ixesha elingaphantsi kwemizuzu emi-5); Ivalve yokhuseleko kufuneka ichithwe ngaphezulu kwamaxesha ama-3 ngokwemigaqo yoyilo.
I-3. I-Peling Welling
3.1 Ukongeza ekuhlangabezeni iimfuno zemizobo, iimeko zobugcisa ze-welding kufuneka zenziwe ngokwemigaqo yezizwe ngezizwe.
3.2 Ii-welds kufuneka zihlolwe yi-radiographic okanye i-ultrasonic ngokungqinelana nenani elithile kunye nenqanaba lomgangatho.
3.3 Imibhobho ye-Welbon ye-Welbon ye-Carbon kufuneka ixhaswe nge-argon arc.
I-4. I-Pipeliel ye-Piperew kunye nokususwa kwe-run
Sebenzisa isanti yesanti kunye nokuthathwa ukuze ususe i-run kunye nehlazo lodonga olungaphakathi lombhobho.
I-5. Izilumkiso zofakelo lombhobho
5.1 Xa i-pipeline ixhunyiwe, akufuneki ihambelane namandla.
5.2 Jonga ngokuthe tye kwesinxibelelanisi se-butt sozzle. Ukulinganisa izibuko kumgama wama-200mm. Ukuphambuka okuvumelekileyo yi-1mm / m, ubude becala ubude bungaphantsi kwe-10mm, kunye nonxibelelwano phakathi kweeflethi kufuneka zifakwe ngokuhambelana.
5.3. Sebenzisa amaqhinga anentambo ukuze afake i-ptfe ngokupakisha, kwaye kuyaliwe ukusebenzisa ioyile ye-sesame.
5.4. Umbhobho kunye nenkxaso kufuneka zahlukaniswe yi-non-chide ion ye-ion ye-ion ye-ion; Umbhobho eludongeni kufuneka ulale, kwaye ubude bomkhono masingabi ngaphantsi kobunzima bomhlaba, kwaye umsantsa kufuneka ugcwaliswe zizixhobo ezingasasebenziyo.
5.5. Umbhobho we-nitrogen kufuneka ube nokukhusela ukukhanya kunye nezixhobo ze-elektrostatic.
5.6. Ubunzulu bombhobho ovuthayo awungaphantsi kwe-0.7m (umphezulu wombhobho ngaphezulu komhlaba), kwaye umbhobho ovuthuzayo kufuneka uphathwe nge-anticorrosion.
I-6. Uvavanyo lwe-piholi
Emva kokuba kufakwe umbhobho, yenza uvavanyo lwamandla kunye nokuqina, kwaye imigaqo yile ilandelayo:
| Uxinzelelo lokusebenza | Uvavanyo lwamandla | Uvavanyo lokuvuza | ||
| Mpa | ||||
| Imithombo yeendaba | Uxinzelelo (MPA) | Imithombo yeendaba | uxinzelelo (MPA) | |
| <0.1 | Umoya | I-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:
I-①air kunye ne-nitrogen kufuneka yomile kwaye iswele ioli;
Amanzi acocekileyo acocekileyo, imixholo ye-chidede ion yamanzi ayidluli kwi-2,5g / m3;
Iimvavanyo zoxinzelelo lobuchule kufuneka ziqhutywa ngokuthe ngcembe inyathelo ngenyathelo. Xa iphakama ukuya kwi-5%, kufuneka ihlolwe. Ukuba akukho mvuwulweyo okanye into engaqhelekanga, uxinzelelo kufuneka lunyuswe inyathelo ngenyathelo kwi-10% uxinzelelo, kunye nokuzinza kwe-voltage inyathelo ngalinye akufuneki lingaphantsi kwemizuzu emi-3. Emva kokufikelela kwingcinezelo, kufuneka igcinwe imizuzu emi-5, kwaye ifanelekile xa kungekho ngqiqweni.
Uvavanyo lokuqina luya kuhlala iiyure ezingama-24 emva kokufikelela kwingcinezelo, kwaye i-avareji ephakathi yexabiso lemvula kunye nemibhobho ye-Trenney kufuneka ibe ≤0.5% njengokuphumelela.
I-cebiso idlulisela uvavanyo lokuqina, sebenzisa umoya owomileyo owomileyo okanye i-nitrogen olwenziweyo, kunye nenqanaba lokuhamba elingaphantsi kwe-20m / s, kude kubekho i-rust, enye i-welding kunye nenye i-stansing kunye nomnye ubumdaka kunye nomnye ubumdaka.
I-7. Ukupeyinta kwe-pipeline kunye nokusebenza ngaphambi kwemveliso:
7.1. I-rump, idyding slag, i-burr kunye nezinye izinto zokungcola kwindawo yokupeyinta kufuneka isuswe ngaphambi kokupeyinta.
7.2. Faka endaweni ye-nitrogen ngaphambi kokubeka kwimveliso de kube ubunyulu bufanelekile.
IXESHA LOKUQALA: Jun-25-2021