Don a ce abubuwa da yawa sun faru a cikin shekara tun farkon barkewar cutar ta COVID-19, wannan rashin fahimta ne na al'amuran almara, ta yadda da wahala a tuna da farkon zamanin da masu fashin kwamfuta suka yi amfani da taro. -haɓakar PPE., Na'urar iska ta gida da sauransu.Duk da haka, ba mu tuna cewa an yi yunƙuri da yawa don gina wannan DIY oxygen concentrator a lokacin farkon fadada lokaci.
Ganin sauƙi da ingancin ƙirar da ake kira OxiKit, yana da alama ba mu ga ƙarin irin waɗannan na'urori ba.OxiKit yana amfani da zeolite, ma'adinai mai laushi wanda za'a iya amfani dashi azaman sieve kwayoyin.Ana cushe ƙananan beads ɗin a cikin silinda da aka yi da bututun PVC da kayan aiki daga kantin kayan masarufi, kuma an haɗa su da injin damfarar iska mara mai ta hanyar bawul ɗin huhu wanda ke sarrafa yawancin bawuloli na solenoid.Bayan sanyaya a cikin kwandon bututun jan ƙarfe, ana tilasta matsewar iska ta ratsa cikin ginshiƙin zeolite wanda zai fi dacewa da riƙe nitrogen yayin barin iskar oxygen ta wuce.Ruwan iskar oxygen ya rabu, wani sashi ya shiga cikin tanki mai buffer, ɗayan kuma ya shiga mashigar hasumiya ta biyu na zeolite, inda aka saki nitrogen da aka tilastawa.Arduino yana sarrafa bawul ɗin don canza iskar gas ɗin baya da baya don samar da lita 15 na 96% tsarkakakken oxygen a cikin minti daya.
Ba a inganta OxiKit kamar masu samar da iskar oxygen na kasuwanci ba, don haka ba shiru ba musamman.Amma wannan ya fi rahusa fiye da naúrar kasuwanci, kuma ga yawancin masu satar bayanai, yana da sauƙin ginawa.Zane-zane na OxiKit duk tushen budewa ne, amma suna siyar da kayan aikin kayan aiki da wasu sassa masu wahala don siyan abubuwa da abubuwan amfani, kamar zeolite.Za mu yi ƙoƙarin gina wani abu kamar wannan saboda fasahar tana da kyau sosai.Samun tushen iskar oxygen mai girma ba shine mummunan ra'ayi ba.
Lita 15 a minti daya yana da ban sha'awa sosai.Dangane da ma'auni, ya isa a ci gaba da rayuwar mutane 7 a cikin yanayi na yau da kullun (kowane mutum @ 2 lita a minti daya).
A koyaushe ina so in san yadda waɗannan suke aiki.Ban sha'awa.Da alama ya kusan keta dokokin thermodynamics, amma ba haka lamarin yake ba.
Tare da irin wannan adadi mai yawa na iskar oxygen da aka samar, Ina so in san abin da zai faru idan kun rataye wannan jaririn a kan injin mota da / ko ƙara girma.Yana iya zama kamar nitrite.Wannan zai zama lafiya sosai, saboda zaku iya saita shi don "tsabta" iskar oxygen da aka samar ana cinye nan da nan kusa da injin maimakon adana a ko'ina.Koyaya, Ina buƙatar fara daidaita motar.Komawa… "Zai yi kyau."
Ina tsammanin wannan yana da kyau ga walda / brazing / yanke oxygen / propane, oxygen / hydrogen ko oxygen / acetylene.
Ee, bayan na kalli wannan bidiyon, YT ya fito da bidiyon shawarar Dalbor Farny akan mai tattara O2.Manufar ita ce samar da wutar iskar oxygen da yake buƙata don busa gilashin lathe.Kera bututun dijital naku na musamman.A zahiri, shida daga cikinsu sun haɗu don samar da 30 lpm O2.
Ina tsammanin injin lita 2 da ke gudana a kan ƴan dubunnan RPM na iya cinye injin lita 15 maimakon minti 1.Duk da haka, wannan zai iya ƙara yawan iskar oxygen a cikin iskar sha zuwa isasshen matakin?da gaske ban sani ba
Nitrite na iya samar da makamashi saboda yana fitar da kwayoyin nitrogen ga kowane kwayoyin nitrous oxide da suka lalace (yana kiyaye girmansa kamar yadda ake shan iskar oxygen), kamar yadda yake kara yawan iskar oxygen mai inganci (Saki kuma zai ba da zafi).Zubar da isasshen iskar oxygen ba shi da fa'ida, saboda har yanzu kuna rasa ƙara kuma dole ne ku magance matsalolin da za su iya kunna toshe injin.
Kuna buƙatar haɓaka haɓaka da gaske.Injin mota mai lita 2 tare da saurin 2500 rpm "numfashi" kusan mita 2.5 na iska a minti daya (21% O²).Yana da kusan sau 600 na ɗan adam yana hutawa.Adadin numfashin da mutane ke cinyewa shine kusan kashi 25% na O², yayin da yawan numfashin da motoci ke cinyewa shine kusan 90%…
Yana kuma ƙone pistons masu zafi da narkakkarwa.Ta hanyar karkatar da cakudaccen man fetur, za ku iya samun ƙarin ƙarfi daga kowane injin.Amma fistan zai narke saboda karuwar zafi.Ƙananan abun ciki na oxygen yana hana ƙarfe daga narkewa.
Injunan motoci na yau da kullun ana iyakance su ta hanyar iska kuma za su samar da mafi girman iko lokacin kona duk iskar oxygen a cikin iska.Ana samun hakan ne ta hanyar haɓaka cakuda ɗanɗano, wanda baya ƙone ɗan man fetur.Sai dai idan ana buƙatar mafi girman ƙarfin, injinan mota yawanci suna tafiya a ɗan karkata, saboda aikin mai mai yana nufin rage tattalin arzikin mai da haɓaka gurɓataccen iska.
Idan kuna son amfani da wannan fasalin don ƙara ƙarfin wuta, kuna buƙatar hanyar da za ku iya yaudarar kwamfutar injin ta ƙara wani kaso na mai a lokaci guda.
Idan za ku iya kiyaye rabon iskar man fetur akai-akai, yana kama da buɗe ma'aunin da kashi kaɗan kawai.
Koyaya, idan kun wuce “kaɗan kashi” (da gangan…), kuna iya isa iyakar ikon ECU don fahimtar yawan iskar da ke shiga, ko sarrafa yawan man da ke fita, ko saita lokacin kunnawa daidai ba tare da la’akari da wane irin gudu ba. kuma iska kake amfani dashi.
Adadin kwarara da ake buƙata don kiyaye mutum a raye ya dogara da yanayinsu!2 l/min yana da sauƙin sauƙi.Yawancin marasa lafiya da ke buƙatar kulawa mai zurfi suna buƙatar 15 l / min.
Yi hankali kawai don ƙarewar iskar oxygen.Yawan yawan iskar oxygen na iya sa abubuwa da yawa su iya ƙonewa kuma suna haɓaka konewar mai da mai da yawa.Wannan shine dalilin da ya sa suke amfani da compressors marasa mai.
Wannan, da sauran sauran hanyoyin sarrafa O2 da yawa "ba da hankali ba nan da nan" na iya cutar da ku, musamman ma matsa lamba.
Idan kuna kunna O2, zaku iya amfani da Abokin Hacker na Vance Harlow's Oxygen Hacker's Companion (nitrox divers iya riga da wannan abokin): http://www.airspeedpress.com/newoxyhacker .html
Ban san littafin ba, mai amfani ne, ba mai kunnawa ba.Koyaya, na gode da bayanin ku, zan yi odar kwafi da zaran fom ɗin ya yi tasiri!
Ee, zan ambata.Yanayin rashin nasara na iska mai matsa lamba ta PVC shine fashewar shrapnel, don haka duba waɗannan ƙimar matsa lamba a hankali-kamar diamita na bututu yana ƙaruwa, ƙimar matsin lamba zai ragu.
A farkon shekarun 1980, na yi aiki da wani kamfani mai ba da hayar kayan aikin likita wanda ya yi hayar da sabis na janareta na iskar oxygen na Devilbiss.A lokacin, waɗannan raka'a sun kasance girman ƙaramin firij ɗin giya kawai.Na tuna a fili yanayin "hardware ajiya" yanayin tsarinsa na ciki.Har yanzu ina tuna cewa an yi gadon sieve tare da bututun PVC na 4-inch da murfin, don haka tsarin da aka bayyana a cikin wannan aikin ya dace da fasahar tarihi na baya (amma a bayyane yake).
Compressor nau'in piston/diaphragm ne mai motsi biyu, don haka babu mai a cikin matsewar iska.Bawul ɗin da ke cikin shugaban kwampreso siriri ne bakin bakin karfe.
Ana yin rarrabuwar rafi ta hanyar mai ƙidayar lokaci, ba a buƙatar Arduino.Mai ƙidayar lokaci yana da aiki tare (motar gear agogo) wanda ke tafiyar da shaft tare da ƙafafun cam masu yawa.Wani micro sauya mai hawa kan cam ɗin yana ƙone bawul ɗin solenoid, yana haifar da motsin gas ɗin.
Babban abokin gaba na waɗannan injuna shine babban zafi.Adadin kwayoyin ruwa yana lalata gadon sieve.
Kafin in bar kamfanin, mun fara samun abin tattara bayanai daga wani mai fafatawa na Devilbiss (sunan da ba a san ni ba a yanzu), kuma kamfanin ya nuna ci gaba sosai.Baya ga ƙaramin ƙarami kuma mafi natsuwa sabon maida hankali, kamfanin ya kuma gina gadon siffa ta amfani da bututun aluminum.An rufe bututun da farantin karfe tare da injuna don O-zobba.Ina ganin ina tunanin cikakken goyon baya wanda ya haɗu da majalisai.Amfanin wannan zane shine cewa idan ya cancanta, za'a iya raba gadon kuma za'a iya maye gurbin kayan sieve.Sun kuma kawar da masu ƙididdige ƙididdiga na inji kuma sun maye gurbin su da na'urorin lantarki masu sauƙi da SSRs don haifar da solenoids.
Suna buƙatar amfani da bututun SCH40 (matsa lamba 260psi @ 3 ″) kuma an sanye su a fili tare da bawul ɗin aminci na 40psi da mai sarrafa 20-30psi kafin a matsa PVC, don haka akwai ingantaccen yanayin aminci.Ba da tabbacin yadda za a fallasa shi ga O2 Canza ƙarfin.
Fashewar matsa lamba na SCH40 shine sau da yawa ƙimar ƙimar matsa lamba-dangane da diamita.Bututu mai inci 3 yana da kusan psi 850, kuma bututu mai inci 6 yana da kusan psi 500.1/2 inch yana kusa da 2000 psi.ninka adadin SCH80.Wannan shine dalilin da ya sa na'urorin wasan tennis na PVC ba sa fashewa-da yawa.Ƙara su zuwa ɗakin konewa na 6 ko 8 zai ƙara sa'ar ku.Amma gabaɗaya, jama'ar hacker suna da matuƙar yin la'akari da ƙarfin tulin filastik.https://www.pvcfittingsonline.com/resource-center/strength-of-pvc-pipe-with-strength-chart/
Zan yi sha'awar rage ikon mai son yin amfani da wasan wuta (da yuwuwar tsarki).Kasuwar sha'awa yawanci tana siyan silinda na iskar oxygen da suka yi ritaya.Wannan shine ra'ayina na farko, amma farashin kit + BOM ya zarce farashin rukunin likitocin da ya yi ritaya.
Injin mota mai lita 2 na iya cinye lita 9,000 na iskar oxygen (sauri mai girma), don haka lita 15 / minti na iskar oxygen kusan sau 600 ya fi guntu., Wannan na'ura ce mai sanyi.Na sayi abubuwan da aka gyara masu yawa na lita 5 a minti daya akan $300 kowanne (farashin da alama yana tashi).Yana samar da lita 5 / minti.Ana amfani da watts ɗari kaɗan, don haka an fitar da cewa lita 9000 a cikin minti ɗaya (don nishaɗi kawai) yana buƙatar kusan 360 kW (480 hp).
Domin su algorithm ɗin ƙungiyar Berlin ce ta rubuta su.(Kididdige ɗaya kuma za ku sami tauraron zinare.)
Duba gidan yanar gizon kamfanin… da kyau, ƙayyadaddun ƙayyadaddun da ke cikin kantin sayar da su ba su da daɗi, amma za su sayar muku da fam 5 akan $75.00.Don haka bari mu kalli github.Kar ka.Babu BOM a can.
Muna da wani buɗaɗɗen ƙirar lantarki wanda zai iya gaya muku yadda ake gina shi maimakon yadda ake cika shi.Ina kiran wannan wurin da babu mahimman bayanai.Yana kamar hali yana ɗaga gira… yana da ban sha'awa.
OxiKit ya ambata a cikin sharhi kan ɗayan bidiyon su (wanda na haɗa shi a cikin labarin, wato IIRC) cewa wannan shine sodium zeolite.
Kamar kowane sieve na ƙwayoyin cuta, kuna gaya wa masana'anta abin da kuke son amfani da shi, ba don abin da ake so ba.Domin abu daya ne, amma budewar ta sha bamban.
O2 concentrators yawanci amfani da 13X zeolite 0.4 mm-0.8 mm ko JLOX 101 zeolite, na biyu shi ne mafi tsada.Lokacin sake gina craigslist o2 concentrator, Na yi amfani da 13X.Hasken kore koyaushe yana kunne, don haka tsarkin o2 shine aƙalla 94%.

https://catalysts.basf.com/files/literature-library/BASF_13X-Molecular-Sieve_Datasheet_Rev.08-2020.pdf

5A (5 angstrom) kuma ana iya amfani da sieves na kwayoyin halitta.Ina tsammanin yana da ƙarancin zaɓi don nitrogen, amma har yanzu ana iya amfani dashi.
Akwai kyakyawar raye-raye akan Wikipedia wanda zai iya sahihan taimaka muku fahimtar ƙa'idar aiki na na'urar: https://upload.wikimedia.org/wikipedia/commons/7/76/Pressure_swing_adsorption_principle.svg Na matsa shigarwar iska A adsorption Ya fitar da iskar oxygen D desorption E shaye
Lokacin da ginshiƙin zeolite ya kusan cika da nitrogen, duk bawuloli suna jujjuya su don sakin nitrogen da shafi ke tallatawa.
Na gode kwarai da dan takaitaccen bayanin ku.A koyaushe ina mamakin ko za a iya amfani da janareta na nitrogen don ayyukan DIY na walda nitrogen a gida.Saboda haka, fitar da sharar iskar oxygen shine ainihin nitrogen: cikakke, zan yi amfani da shi a cikin tashar siyar da gubar ta.
Lallai, ga masu son, yana da matukar fa'ida don iya juyar da iska zuwa mafi yawan iskar oxygen mai tsafta kuma galibin nitrogen mai tsafta.Ina so in san ko za ku iya amfani da "mafi yawa nitrogen" a matsayin garkuwar gas don waldawa.
Ga TIG (wanda kuma aka sani da GTAW), tunda ƙwayar plasma tana da hankali sosai, ban tabbata ba.Ana amfani da iskar Argon galibi, wani lokaci tare da iskar helium kadan don shiga cikin kayan kamar aluminum da titanium.Gudun yana kusan 6 zuwa 8l/min, wanda zai iya yin girma da yawa don madaidaicin kwampreso.
Don walda, dole ne cewa manyan kamfanonin walda duk suna siyar da iskar gas ɗin kariya ta nitrogen don samar da rohs, amma farashin kit ɗin yana tsakanin Yuro 1-2k.Adadin kwararar su yana kusan 1l/min, wanda ya dace sosai don sieves na ƙwayoyin cuta.Don haka bari mu haɗa wasu kayan masarufi kuma mu yi siyar da dalma mara juyi a gida!
Welders suna so su sami damar yin amfani da nitrogen mai tsafta a matsayin iskar kariya.Ya fi argon ko helium mai rahusa.Abin takaici, yana da isassun amsawa a yanayin zafin da baka ya kai kuma yana ƙoƙarin samar da nitrides mara kyau a cikin walda.
Ana amfani dashi don walda garkuwar gas, amma kaɗan kaɗan ne kawai zai iya canza halayen walda.
Babu shakka, yana yiwuwa a yi amfani da shi a cikin walda na Laser, amma ko da ingantacciyar kayan aikin ƙila ba ta da wannan aikin.
Saboda haka, a ka'idar, ana iya amfani da aƙalla PSA ɗaya don rage nitrogen, sannan kuma wani PSA (ta amfani da wani zeolite) don rage iskar oxygen, yana barin mafi yawan abubuwan da ba oxygen ko nitrogen ba.
Lokacin da kake da gaskiya, a wannan lokacin, ina ba da shawarar cewa ka kwantar da iska sannan ka niƙa shi don raba gas ɗin da kake so / maras so.
@Foldi-A nadawa ta fuskar shigar da makamashi da fitar da iskar gas.Na yarda gaba ɗaya cewa ingancin zai kasance mafi girma akan sikeli mafi girma saboda zaku iya amfani da ƙashin ƙuri'a don sanyi.
Amma a kan ƙaramin ma'auni, za ku sami compressor 1, hasumiya na zeolite 4 da ɗigon matsi na lantarki da kuma farashin farko na mai sarrafawa mai arha (The Brain), wanda ina tsammanin zai ragu.
@irox na iya ta hanyar kwatankwacinta, amma babu wanda ke amfani da lita 2 na oxygen da zai mutu da sauri ba tare da samun iskar oxygen ba.Don kwatanta, sashin kulawar mu na gaggawa (ICU) waɗanda ke da babban kwararar ruwa na biyu saboda COVID, suna samun 45-55L lokacin da FIO2 ke da 60-90%.Waɗannan su ne majinyatan “kwanciyar hankali”.Idan babu babban kwarara, tabbas za su lalace da sauri, amma ba za su yi rashin lafiya ba har za a shigar da mu.Za ku ga lambobi iri ɗaya ko mafi girma ga sauran marasa lafiya na ARDS ko mafi yawan wasu yanayi waɗanda ke buƙatar cannula mafi girma fiye da cannula na hanci na al'ada.
A gare ni, amfani shine alkuki.Wannan yana iya kiyaye marasa lafiya 2 da kyau a matsa lamba na 6-8 L, wanda shine ainihin wurin da babban kwararar ruwa ke haskakawa sama da cannula na hanci na al'ada ko NIPPV.Ina so in faɗi cewa wannan yana da tasiri sosai ga ƙaramin asibiti tare da ƙarancin iskar oxygen, kuma yana iya ba da sabis na kiwon lafiya ga marasa lafiya da ke fama da cututtuka na yau da kullun a cikin yanayin gaggawa na ɗan lokaci.
Shin majiyyaci yana cinye lita 6 (ko 45-55) na oxygen a minti daya, ko kuma an rasa wani sashi, an fitar da shi zuwa yanayin ko wani abu?
Asalin nawa / gwaninta shine kawai tsarin tallafin rayuwa mai iyaka ga mutane masu lafiya (tare da cire carbon dioxide da kuma kimanin lita 2 na carbon dioxide da aka kara da mutum a minti daya), don haka godiya ga yawan amfanin likita, wannan shine mai buɗe ido!
Yana da mahimmanci a tuna cewa suna shan iskar oxygen, saboda huhun su yana da matsewa lokacin shan iskar oxygen.Saboda haka, idan aka kwatanta da ka'idar bukatun jikin mutum, farashin yana da yawa, domin a gaskiya, mutane kaɗan ne ke shiga.
Ban sani ba ko wanda ya yi magana shi ne ya tsara ta, amma wannan bai yi daidai da yadda ya kwatanta ba.Molecular sieves da zeolites ba sa tarko N2, za su iya tarko O2.Don kama N2, kuna buƙatar abin sha na nitrogen, wanda yake dabba ce ta daban.Sive yana kama O2 a ƙarƙashin matsin lamba yayin da nitrogen ke ci gaba da wucewa.Dole ne wannan ya zama daidai, domin lokacin da kuka saki matsa lamba kuma kuyi amfani da shi don zubar da N2 a wani shafi, ba ma'ana ba ne a yi ƙoƙarin cire N2 tare da N2..Waɗannan raka'o'in adsorption ne na matsa lamba (PSA), suna aiki ta tarko O2.Mafi girman matsa lamba da manyan silinda na iya kawo ingantaccen inganci (4 cylinders suna da inganci har zuwa 85%).Wannan yana ɗaukar O2, amma baya aiki kamar yadda ya faɗa (ko labarin ya faɗi)
Dole ne ku samar da tushen bayanin da ake buƙata, saboda kuna iya ɗaukar N2 gaba ɗaya akan 13X da 5A zeolite molecular sieves.http://www.phys.ufl.edu/REU/2008/reports/magee.pdf
Labarin PSA na Wikipedia kuma ya tabbatar da cewa zeolite yana sha nitrogen.https://en.wikipedia.org/wiki/Pressure_swing_adsorption#Tsarin
"Duk da haka, yana da arha fiye da rukunin kasuwanci."Tun da BOM ya wuce $ 1,000, yana da wuya a gare ni in goyi bayan wannan sanarwa.Lissafin kayan don gida (wanda ba šaukuwa ba) masu tattara bayanan kasuwanci yana kusan kusan 1/3, yana da sauƙin samu, kuma baya buƙatar aiki.Na san 17LPM yana da sanyi, amma babu wanda ke wajen asibiti da zai nemi irin wannan zirga-zirga.Duk mai irin wannan buƙatar yana shirin dubawa ko a shigar da shi.
Haka ne, wannan aiki ne mai kyau, amma a, ƙimar sa mai tsada ba shi da ƙima zuwa wani matsayi.A Ostiraliya, sabon kayan aikin 10l/pm kusan $1500AUD ne kawai.Zaton cewa $1000 dalar Amurka ce, wannan yana rage farashin siyan sabbin kayan aiki.
Kafin barkewar cutar, na sayi daya akan eBay akan farashin kusan £160 tare da kwararar lita 1.5 a minti daya akan farashin 98%.Kuma wannan abu ya fi wannan shuru!Ta wannan hanyar, kuna iya yin barci da gaske.
Amma da ya faɗi haka, wannan babban ƙoƙari ne.Saka shi a cikin daki kusa da dogon bututu don guje wa hayaniyar hayaniya da fashewa…
Ina so in san ko zai yiwu a gare ku ku yi amfani da shi azaman tushen tushen nitrogen mai tsabta, a cikin yanayin kariya ko ma a cikin walda?
Yaya game da tayoyin cike da nitrogen.Idan aka yi la'akari da kuɗin da suke caji don wannan sabis ɗin, nitrogen dole ne ya zama tsada sosai…
Mataki na gaba na iya zama mai ban sha'awa-samu fitowar wannan mai tattarawa kuma raba cakuda 95% O2 + 5% Ar.Ana iya yin wannan ta hanyar rabuwar motsi ta hanyar amfani da sieve kwayoyin CMS a cikin tsarin PSA.Sa'an nan kuma saita famfo 150 don cika silinda argon.
Yanzu, kawai muna buƙatar wani don yin aikin Linde a gida don samun nishaɗin fashewa na gaske
Ta amfani da gidan yanar gizon mu da sabis ɗinmu, kun yarda da ƙayyadaddun sanya ayyukanmu, ayyuka da kukis ɗin talla.Ƙara koyo