Ntxiv rau qee qhov kev xav tau purity rau kev kho mob oxygen (99.5% oxygen purity rau cov txheej txheem cryogenic), cov dej noo yuav tsum tsis pub tshaj qhov dej dew point ntawm -43 degree. Lub ntim feem ntawm carbon dioxide, nrog rau cov ntsiab lus ntawm carbon monoxide, gaseous acids thiab alkalis, ozone, thiab lwm yam gaseous oxidants yuav tsum tau ua raws li cov kev cai ntawm GB 8982-1998. Yog li ntawd, kev lag luam oxygen tsis ua raws li cov qauv kev kho mob oxygen, txhais tau tias cov pa oxygen zoo tib yam thiab cov pa oxygen cylinders tsis tuaj yeem siv los sau cov pa kho mob.
Siv adiaphragm compressoryog ib qho kev ntsuas los xyuas kom muaj cov pa oxygen zoo. Covkua oxygen internal compression txheej txheemyog ib qho kev nyab xeeb thiab tsis muaj kab mob - txheej txheem pub dawb rau kev tsim cov pa oxygen kho mob. Tshwj xeeb, kua oxygen yog muab rho tawm los ntawm lub ntsiab condenser, subcooled, thiab ces compressed mus rau 16 MPa los ntawm ib tug plunger - hom kua oxygen twj tso kua mis. Nws yog ces vaporized rau hauv siab - siab gaseous oxygen nyob rau hauv ib tug oxygen tshav kub exchanger, recovering lub txias zog. Ntau cov nroj tsuag oxygen tau siv qhov kev hloov kho no rau 50 m³ / h thiab 150 m³ / h oxygen generators. Cov ntsiab lus tseem ceeb yog raws li hauv qab no:
- Cov pa oxygen kub exchanger ua haujlwm nyob rau hauv kev kub siab thiab yuav tsum muaj peev xwm ua kom muaj peev xwm tiv taus siab. Tsis tas li ntawd, vim lub peev xwm txias txias ntawm cov kua oxygen ntau, cov cua txias hauv cov pa oxygen kub exchanger yog kwv yees li 1.7 npaug ntawm cov pa oxygen. Lub tshav kub load ntawm lub ntsiab tshav kub exchanger yog txo, thiab tsis txaus reheating ntawm rov qab qis-kub gas expands qhov kub-kawg kub sib txawv, ua kom txias poob;
- Thaum siv cov txheej txheem compression sab hauv, kev ua haujlwm tau txais los ntawm cov kua oxygen twj tso kua mis dhau los ua qhov txias txias ntxiv rau chav tsev. Lub caij no, lub siab - siab oxygen tawm hauv chav tsev nyob rau hauv siab, thiab lub throttling effect lub tub yees tsis siv. Yuav kom sib npaug ntawm qhov txias poob, lub tub yees muaj peev xwm ntawm lub expander yuav tsum tau nce. Qhov no yuav tsum tau tsa lub siab ua haujlwm ntawm lub tshuab cua compressor, feem ntau siab dua 4.0 MPa;
Yog tias chav tsev xav tau ib txhij tsim cov pa oxygen kho mob thiab muaj cov pa oxygen, qhov ntau thiab tsawg ntawm cov kua oxygen subcooler sib xws, cov pa oxygen kub hloov pauv, thiab cov twj tso kua oxygen yuav tsum tau txiav txim siab raws li qhov xav tau ntawm cov pa oxygen. Nyob rau hauv rooj plaub no, qhov nce hauv qhov txias poob yog qhov me me, thiab kev ua haujlwm siab kuj tuaj yeem txo qis.
