Dad badan ayaan waligood maqlin triethyl aluminium (TEAL), laakiin waxay door muhiim ah ka ciyaartaa soo saarista alaabada ay dadku arki karaan oo taaban karaan maalin kasta. TEAL waa organoaluminum (kaarboon iyo aluminium) oo loo isticmaalo in lagu soo saaro caagag cufan sare leh iyo cufan hoose, caag, dawooyin, semiconductors, iyo polymers looga baahan yahay "alkolada dufanka leh" ee saabuunta iyo gacmo nadiifiyaha.
Polymers waxay ku shaqeeyaan iyagoo isku daraya unugyo gaar ah (ama monomers) silsilado waaweyn oo loo isticmaali karo samaynta alaabada. polymers-ka organic, laf dhabarta silsiladahan waa kaarboon iyo xeryahooda organometallic, sida TEAL. Iskudhisyadani waxay bixiyaan kaarboonka loo baahan yahay falcelinta polymerization. Soo saarista qaar ka mid ah caagadaha ugu caansan, isku darka TEAL iyo titanium tetrachloride waxay soo saari karaan kicinta Ziegler-Natta. Tani waa kicinta loo baahan yahay si loo bilaabo fal-celin kiimikaad taasoo horseedaysa polymerization olefin toosan si loo soo saaro polyetylen iyo polypropylene.
Warshad kasta oo kaydisa ama farsamaysa TEAL waa in ay fiiro gaar ah u yeelato isbeddelka kiimikada. TEAL waa pyrophoric, taas oo macnaheedu yahay inay gubi doonto marka ay hawada gasho. Dhab ahaantii, falcelinta xooggan ee kiimikadan leh oksijiinta dareeraha ee cryogenic waa mid ka mid ah sababaha loo isticmaalo sidii marxaladda koowaad ee gantaalaha barnaamijka SpaceX. Kaliya hal shay oo la yiraahdo: taxadar aad u daran waa in la sameeyaa marka la maaraynayo walaxdan. Soosaarayaasha balaastikada ah ee soo saara kiimikadan maalin kasta, kaliya bambooyin si gaar ah loogu talagalay codsigan ayaa la isticmaali karaa. Taxaddar dheeri ah waa in la sameeyaa si loo hubiyo in kiciyahu aanu soo gaadhin hawada inta lagu jiro hawsha.
Markaad dooranayso bamka codsiyada TEAL, saxnaanta ayaa ah muhiimada ugu badan. Nidaam kasta oo kiimiko ah wuxuu raacayaa qaacido gaar ah. Durida maaddooyinka muhiimka ah oo aad u badan ama aad u yar ma soo saari doonaan natiijooyinka la rabay. Matoorada mitirka ee si gaar ah u duri kara qaddarka loo baahan yahay ee kiimikooyinka (oo sax ah +/- 0.5%) ayaa ah doorashada koowaad ee soosaarayaasha kiimikada codsiyada TEAL.
Marka laga hadlayo socodka iyo cadaadiska, TEAL waxaa badanaa lagu cabbiraa mug ka yar 50 gallon saacaddii (gph) iyo cadaadis ka yar 500 rodol halkii inji oo labajibbaaran (psig), kaas oo ku dhex jira inta u dhaxaysa inta badan bambooyin cabbiraadda. Qaybta muhiimka ah ee habka polymerization waa u hoggaansanaanta buuxda ee Machadka Batroolka Mareykanka (API) 675 xeerarka, saxnaanta iyo isku halaynta. TEAL waxay door bidaysaa bambooyin ka kooban 316 dhamaadka dareeraha birta ah, 316 LSS ball valve iyo kursiga, iyo polytetrafluoroethylene (PTFE) diaphragm si loo kordhiyo nolosha kiimikadan khatarta ah.
Badbaadada iyo isku halaynta Bamka cabbiraadda diaphragm (HAD) ee Haydarooliga ku socdaa wuxuu u shaqayn karaa si la isku halleyn karo muddo tobanaan sano ah wuxuuna leeyahay waqti dhexdhexaad ah oo u dhexeeya dayactirka (MTBR). Tani waxay inta badan sabab u tahay naqshadeynta bamka. Gudaha dhamaadka dareeraha, mugga iyo cadaadiska dareeraha hydraulic ee dhinac ka mid ah diaphragm waxay la mid yihiin cadaadiska dareeraha habka ee dhinaca kale, si diaphragm uu u ilaaliyo dheelitirnaanta siman ee u dhexeeya labada dareere. Piston-ka bamka waligiis ma taaban diaphragm-ka, waxa uu u dhaqaajiyaa saliidda hayrooliga ee diaphragm, taas oo keenaysa in ay foorarsato oo ku filan si ay u dhaqaajiso qadarka loo baahan yahay ee dareeraha habka. Naqshadani waxay meesha ka saaraysaa walbahaarka diaphragm waxayna leedahay nolol adeeg oo dheer.
Inkasta oo cimri dhererku muhiim yahay, mudnaanta waa in la siiyaa isku halaynta iyada oo aan la daadin. Matoorada mitirka ee codsiyada TEAL waa in lagu qalabeeyaa valves hubinta muhiimka ah si loo yareeyo waddooyinka daadsan. Usha 4-bolt ee dibadda waxay bixisaa isku xirka dhuumaha adag oo la isku halleyn karo. Muddo dheer, gariirka dibadda ee isku xirka tuubada wuxuu sababi karaa daadinta iyo dhibaatooyinka bamka weyn.
Diaphragm-ka PTFE wuxuu leeyahay rikoodh wanaagsan marka la soo shubo TEAL. Bambooyinku waa inay lahaadaan diaphragm laba jibaaran oo leh shaqo ogaansho, sida cabirka cadaadiska ama isku darka cabirka cadaadiska oo u beddelo inay ka digaan dhibaatooyinka iman kara.
Sida lakabka saddexaad ee ilaalinta, bustaha nitrogen ee ku jira daboolka hawo-biyoodka iyo sanduuqa gearbox waxay ka ilaalin doonaan dareeraha pyrophoric inuu soo gaadho hawada.
Dayactirka Qalabka hubinta ee bamka cabbiraadda, kaas oo ku shaqeeya 150 istaroog daqiiqadii, 365 maalmood sannadkii, wuu furmi doonaa oo xidhi doonaa in ka badan 70 milyan jeer sannadkii. Qalabka dayactirka caadiga ah ama KOP (ku wad bamgareynta) xirmada ayaa bixisa qaybaha loo baahan yahay si loogu beddelo bamka hubinta, kaas oo sidoo kale ay ku jiraan diaphragms, O-rings iyo shaabadihii. Iyada oo qayb ka ah dayactirka ka-hortagga ah, waa inay sidoo kale ku jirtaa beddelka saliidda hawo-biyoodka ee bamka.
Baahida balaastikada ee qalabka ilaalinta shakhsi ahaaneed (PPE), oo ay weheliso qiimaha saliidda hoose si loo dhimo kharashaadka alaabta ceeriin, waxay la macno tahay wax soo saarka kordhay iyo baahida loo qabo kicinta kacsan ee mitirka ah (sida TEAL).
Jesse Baker waa hogaamiyaha ganacsiga ee iibka Pulsafeeder, maamulka alaabta, injineernimada iyo kooxaha adeegga macaamiisha. Waxaad kala xidhiidhi kartaa jbaker@idexcorp.com. Wixii macluumaad dheeraad ah, fadlan booqo www.pulsafeeder.com.
Waqtiga boostada: Jan-20-2021
