Indlela yokukhetha ijenereyitha yenitrogen efanelekileyo

Ngaphambi kokumisela iinkcukacha ezithile zemodeli (oko kukuthi Imveliso yeNitrogen ngeyure, ubumsulwa be-nitrogen, uxinzelelo lokuphuma, indawo yokubanda), kufuneka sigxile kuhlalutyo olupheleleyo lokuthelekisa ukusebenza kunye neempawu zeumvelisi wenitrogen, kwaye senze ukhetho olufanelekileyo ngokusekelwe kwiimeko zethu zokusingqongileyo ezikhoyo.

Iimfuneko ze-nitrogen kwimizi-mveliso eyahlukeneyo

A, Amashishini okulungisa isinyithi kunye nesinyithi

Amanye ala mashishini afuna i-nitrogen enobumsulwa obungaphezulu kwe-99.5%, ngelixa amanye efuna i-nitrogen esemgangathweni ophezulu enobumsulwa obungaphezulu kwe-99.9995% kunye ne-dew point ephantsi kune--65°C. Oku kufuneka kumiselwe ngokusekelwe kwiimeko zomveliso zomthengi.

B, Amashishini eekhemikhali kunye nezinto ezintsha

Ngokubanzi, iimfuno zokucoca i-nitrogen aziphezulu, kwaye ii-purity ezininzi ezingaphezulu kwe-98% zingasetyenziswa. Nangona kunjalo, iimfuno zokwenyani zixhomekeke kwinkqubo yokuvelisa yomthengi.

C, Amashishini okutya namayeza

Uninzi lwemizi-mveliso yokutya ayinazo iimfuno eziphezulu ze-nitrogen, kwaye ubunyulu obuyi-99.5% ~ 99.9% bunokuhlangabezana neemfuno. Inani elincinci lemizi-mveliso yokutya kufuneka likhethe ubunyulu obuyi-99.99% ngenxa yeemfuno zenkqubo. Imizi-mveliso yamayeza idla ngokufuna ubunyulu be-nitrogen obuyi-99.99% kwaye ifuna ukuba yenziwe ngentsimbi engagqwaliyo.

Ishishini le-elektroniki

Ngokubanzi, iimfuno ze-nitrogen ziphezulu, kwaye ngokuqhelekileyo kufuneka ubumsulwa be-nitrogen obuyi-99.99% nangaphezulu.

Uthelekiso phakathi kweentlobo ngeentlobo Umvelisi weNitrogens

A, Umatshini wokuvelisa i-nitrogen wokwahlula umoya i-Cryogenic

Imveliso ye-nitrogen yokwahlula umoya nge-cryogenic yindlela yemveli yokuvelisa i-nitrogen enembali ephantse ibe ngamashumi eminyaka. Isebenzisa umoya njengezinto eziluhlaza, iwucinezele kwaye uyicoce, ize isebenzise utshintshiselwano lobushushu ukwenza umoya ube ngumoya omanzi. Umoya omanzi ikakhulu ngumxube we-oxygen engamanzi kunye ne-nitrogen engamanzi. Amanqaku ahlukeneyo okubilisa e-oxygen engamanzi kunye ne-nitrogen engamanzi (kwi-atmosphere enye, indawo yokubila yeyokuqala yi--183℃ kwaye eyesibini yi--196℃) asetyenziselwa ukwahlulahlula ngokusebenzisa i-distillation yomoya omanzi ukuze kufunyanwe i-nitrogen. Izixhobo zokuvelisa i-nitrogen yokwahlula umoya nge-cryogenic ziyinkimbinkimbi, zithatha indawo enkulu, zineendleko eziphezulu zeziseko zophuhliso, zifuna utyalo-mali oluthe kratya kwizixhobo, zineendleko eziphezulu zokusebenza, imveliso yegesi ecothayo (iiyure ezili-12 ukuya kwezingama-24), zineemfuno eziphezulu zokufakela, kunye nomjikelo omde. Xa kujongwa izinto zezixhobo, ukufakwa kunye neziseko zophuhliso, isikali sotyalo-mali sezixhobo ze-PSA ezineenkcazo ezifanayo ezingaphantsi kwe-3500Nm3/h siphantsi ngama-20% ukuya kuma-50% kunezixhobo zokwahlula umoya nge-cryogenic. Izixhobo zokuvelisa i-nitrogen yokwahlulahlula umoya nge-cryogenic zifanelekile kwimveliso ye-nitrogen yemizi-mveliso emikhulu, ngelixa imveliso ye-nitrogen ephakathi nencinci ingabizi kakhulu.

B, ijenereyitha ye-nitrogen yokufunxa uxinzelelo lwe-PSA

Indlela yokusebenzisa umoya njengezinto ezikrwada, isihluzo se-carbon molecular njenge-adsorbent, ukusebenzisa umgaqo wokufunxa i-pressure swing, kunye nokusebenzisa i-adsorption ekhethiweyo ye-oxygen kunye ne-nitrogen nge-carbon molecular seef ukwahlula i-nitrogen kunye ne-oxygen ngokubanzi ibizwa ngokuba yi- Imveliso ye-nitrogen ye-PSALe ndlela yiteknoloji entsha yokuvelisa i-nitrogen eyaphuhliswa ngokukhawuleza ngeminyaka yoo-1970. Xa ithelekiswa neendlela zemveli zokuvelisa i-nitrogen, ineempawu zokuhamba kweenkqubo ezilula, inqanaba eliphezulu lokuzenzekelayo, imveliso yegesi ekhawulezayo (imizuzu eli-15-30), ukusetyenziswa kwamandla aphantsi, ubunyulu bemveliso bunokulungiswa ngaphakathi koluhlu olukhulu ngokweemfuno zomsebenzisi, ukusebenza okulula nokugcinwa, iindleko zokusebenza eziphantsi, ukuguquguquka kwesixhobo esomeleleyo, njl. Ke ngoko, ikhuphisana kakhulu kwizixhobo zokuvelisa i-nitrogen ezingaphantsi kwe-1000Nm3/h, kwaye yamkelwe ngakumbi ngabasebenzisi be-nitrogen abaphakathi nabancinci. I-Psa Nitrogen imveliso iye yaba yindlela yabasebenzisi be-nitrogen abaphakathi nabancinci.

C, Umvelisi wenitrogen wokwahlula iMembrane

Ukusebenzisa umoya njengezinto eziluhlaza, phantsi kweemeko ezithile zoxinzelelo, ioksijini kunye ne-nitrogen zahlulwe ngokusebenzisa amazinga ahlukeneyo okuntywila kweegesi ezineempawu ezahlukeneyo ezifana neoksijini kunye ne-nitrogen kwi-membrane. Xa kuthelekiswa nezinye izixhobo zokuvelisa i-nitrogen, ineengenelo zesakhiwo esilula, ubungakanani obuncinci, akukho valvu yokutshintsha, ukugcinwa okuncinci, imveliso yegesi ekhawulezayo (≤3 imizuzu), kunye nokwandiswa komthamo okulula. Ifanelekile ngokukodwa kubasebenzisi be-nitrogen abaphakathi nabancinci abanobumsulwa be-nitrogen ≤98%, kwaye inomlinganiselo ongcono womsebenzi kunye nexabiso. Xa ubumsulwa be-nitrogen bungaphezulu kwe-98%, ixabiso layo lingaphezulu kwe-15% kunelo leejeneretha ze-nitrogen ze-PSA ezineenkcazo ezifanayo.

Izinto ezichaphazela ixabiso leejenereyitha zenitrogen

1.Ixabiso lokuthenga kanye kuphela kwenkqubo yonke. Okwangoku, kukho iimpawu ezininzi kwimarike, kwaye umgangatho uhambelana nexabiso.

2. Uzinzo lokusebenza kwezixhobo kunye nobomi benkonzo obuqikelelweyo.

3. Iindleko zokusebenza nokugcinwa kwazo zonyaka.

4. Iindleko zamanzi nombane zemihla ngemihla.