20# ipayipi lensimbi engenamthungo livamise ukusebenzisa i-20# yekhwalithi ephezulu yekhabhoni njengempahla eluhlaza, okuyipayipi lensimbi elikwazi ukumelana nokushisa kwekhabhoni elivamise ukusetshenziswa ekwakhiweni nasezakhiweni zemishini.

I-20 # insimbi inezici ezilandelayo: ipulasitiki enhle kanye nokushisela okuqinile. Ngenxa yamandla ayo aphansi, ilungele ukucubungula okubandayo kanye nezigcawu ezingenamandla aphezulu.

20# Seamless steel pipe ingasetshenziswa ezimbonini ezilandelayo:

1. Ngamapayipi ama-boiler aphansi naphakathi, izinga lokuqalisa liwukuthiGB 3087, asetshenziselwa ukukhiqiza amashubhu okushisa aphezulu kanye namashubhu odonga apholiselwe ngamanzi amabhoyela anomfutho ophakathi nendawo (ingcindezi yokusebenza ≤5.9 MPa), asezingeni lokushisa eliphezulu (≤480℃) + imvelo ye-oxidation yomhwamuko isikhathi eside

2. Amapayipi e-petroleum fracturing, izinga lokuqalisa liwukuthiGB 9948, esetshenziselwa ama-reactors, izishintshisi zokushisa, njll. yamayunithi okuhluza i-petroleum, ukuxhumana nemidiya ene-acidic (H₂S, CO₂) kanye nokucindezela okuphezulu (kufika ku-15 MPa)

3. Imishini kamanyolo enengcindezi ephezulu, izinga lokuqalisa liwukuthiGB 6479, esetshenziselwa izinto zomanyolo ezinengcindezi ephezulu (10~32 MPa) njenge-synthetic ammonia ne-urea, ethinta imidiya egqwala kakhulu (njenge-liquid ammonia, urea melt)

Amapayipi ensimbi angenamthungo agingqiwe ashisayo wezisekelo ze-hydraulic, izinga lokuqalisa liwukuthiI-GB/T17396, esetshenziselwa amakholomu asekela uketshezi oluningiliziwe kanye nojeke ezimayini zamalahle, futhi imelana nemithwalo eshintshashintshayo yamafrikhwensi aphezulu (50~100 MPa) kanye nokudlidliza okunomthelela