Akụkọ

A na-enweta akụrụngwa na-emepụta nitrogen site na ikewa ikuku na nitrogen site na ihe eji eme ihe na-eji ikuku dị ka ihe eji eme ihe.
Enwere ụdị atọ nke mmepụta nitrogen:
◆Cryogenic ikuku nkewa nitrogen
Cryogenic ikuku nkewa nitrogen bụ usoro mmepụta nitrogen ọdịnala nke dị na iri afọ ndị na-adịbeghị anya.Ọ na-eji ikuku dị ka ihe eji eme ihe, a na-echikọta ya, sachaa ya, wee na-eji mgbanwe okpomọkụ mee ka ikuku banye n'ikuku mmiri mmiri.Ikuku mmiri mmiri bụ ngwakọta nke oxygen mmiri mmiri na mmiri mmiri nitrogen, nke nwere isi ihe dị iche iche nke mmiri oxygen na mmiri mmiri nitrogen (ebe isi nke mbụ bụ -183 Celsius C na 1 ATM, nke ikpeazụ bụ -196 Celsius C). , na distillation site na mmiri mmiri ikuku Kewaa ha ka ha nweta nitrogen.The cryogenic ikuku nkewa nitrogen mmepụta ngwá bụ mgbagwoju, na-ekpuchi a nnukwu ebe, nwere a nnukwu ego na-eri, na nwere nnukwu ego na akụrụngwa, oké ọrụ na-eri, obere gas mmepụta (12 ka 24 awa), elu echichi chọrọ na ogologo okirikiri.Akụrụngwa zuru oke, ntinye na ihe akụrụngwa, akụrụngwa dị n'okpuru 3500Nm3 / h, ntinye ego nke akụrụngwa PSA nke otu nkọwa bụ 20% ~ 50% dị ala karịa ngalaba nkewa ikuku cryogenic.The cryogenic ikuku nkewa nitrogen osisi adabara nnukwu-ọnụ ọgụgụ ulo oru nitrogen mmepụta, mgbe na-ajụ na obere ọnụ ọgụgụ nitrogen mmepụta bụ uneconomical.

◆Molecular sieve nitrogen
Usoro a na-eji ikuku eme ihe dị ka akụrụngwa, a na-eji sieve carbon molecular mee ihe dị ka adsorbent, a na-eji ụkpụrụ mgbasa ozi nrụgide nrụgide, na-ahọrọ adsorption nke oxygen na nitrogen site na carbon molecular sieve iji kewaa nitrogen na oxygen. A na-akpọkarị PSA nitrogen mmepụta.Usoro a bụ teknụzụ na-emepụta nitrogen ọhụrụ nke e mepụtara ngwa ngwa na 1970s.N'iji ya tụnyere usoro mmepụta nitrogen omenala, ọ nwere usoro dị mfe, ogo dị elu nke akpaaka, mmepụta gas ngwa ngwa (15 ruo 30 nkeji), obere ume ike, ịdị ọcha ngwaahịa nwere ike gbanwee dị ka onye ọrụ chọrọ n'ọtụtụ dịgasị iche iche, ọrụ dị mfe na mmezi. , Arụ ọrụ ọnụ ala na ike mgbanwe nke ngwaọrụ, ya mere, ọ bụ asọmpi na nitrogen mmepụta ngwá n'okpuru 1000Nm3 / h.Ọ na-ewu ewu karịa n'etiti ndị na-eji nitrogen obere na ọkara.PSA nitrogen aghọọla nhọrọ mbụ maka ndị na-ajụ nitrogen na ndị nta.usoro.

◆Nitrogen nkewa ikuku nke membrane
A na-eji ikuku eme ihe dị ka ihe eji eme ihe, na n'okpuru ọnọdụ nrụgide dị iche iche, gas nke ihe dị iche iche dị ka oxygen na nitrogen nwere ọnụọgụ dị iche iche na-agbapụta na akpụkpọ ahụ iji kewaa oxygen na nitrogen.E jiri ya tụnyere ihe ndị ọzọ na-emepụta nitrogen, ọ nwere uru nke usoro dị mfe, obere olu, ọ dịghị valvụ na-agbanwe, obere mmezi, mmepụta gas ngwa ngwa (≤3 nkeji), mmụba ikike dị mma, wdg. Ọ dị mma karịsịa maka ịdị ọcha nitrogen ≤ 98 % nke ndị na-eji nitrogen na ọkara na obere nwere oke ọnụahịa/arụmọrụ kacha mma.Mgbe ịdị ọcha nke nitrogen dị n'elu 98%, ọ karịrị 15% dị elu karịa ngwa PSA na-emepụta nitrogen nke otu nkọwapụta.