Thaum tshav kub kub rov qab Biogas Generator Unit
Mainstream recycling technologies thiab cov khoom siv
Tshem tawm cua sov rov qab
Khib nyiab cua sov boiler: ua rau chav ntawm 0.4-0.6MPa thiab 150-170 degree, siv rau chav ua haujlwm, cua sov, lossis tsav tsheb lithium bromide tub yees.
Flue gas heat exchanger: High temperature section siv finned tube/heat pipe heat exchangers los tsim cov dej kub ntawm 90-}150 degree, thaum qhov kub qis siv phaj / plhaub raj preheating rau boiler feedwater lossis dej kub hauv tsev.
Thaum tshav kub kub tshuab thev naus laus zis: theem hloov tus kheej ncig, corrosion- cov khoom siv tiv taus (titanium alloy / stainless hlau) + anti- txheej txheej corrosion, haum rau sulfur- muaj cov roj flue, haum rau cov pa tawm ntawm 200-350℃.
Lub tog raj kheej liner dej pov tseg thaum tshav kub kub rov qab
Phaj cua sov exchanger: kev sib pauv cua kub zoo, ua rau 60-80℃dej kub, siv rau cua sov fermentation tso tsheb hlau luam, cua sov lossis dej kub hauv tsev.
Dej dej kub exchanger: cov qauv yooj yim, haum rau me me thiab nruab nrab- cov chav tsev loj, nrog kev rov ua haujlwm ntawm li 60% -75%.
Advanced Techniques
Ob theem kho qhov kub thiab txias qhov sib txawv ntawm lub zog tsim hluav taws xob: Cov pa hluav taws xob kub siab ua rau thawj theem tsim hluav taws xob, thiab cov dej txias rov ua dua tshiab ua rau lub zog thib ob. Nws yog txawm peem rau nrog theem hloov lub zog cia kom stabilize lub load, nrog ib tug efficiency ntawm 8% -10%.
Absorption tub yees: siv chav dej / dej kub los tsav lithium bromide units rau tub yees, ua tiav kev ua kom txias, cua sov, thiab hluav taws xob.
3, Kev tsim qauv thiab txheej txheem
Kev kho ua ntej: Biogas desulfurization (H ₂ S<200ppm), dehydration (dew point<-20 ℃), pressure stabilization (5-10kPa), to reduce equipment corrosion and scaling.
Cascade recycling txheej txheem
High kub tso tawm → khib nyiab boiler / tshav kub yeeb nkab kub exchanger → chav ntau lawm / siab -kub dej kub → siv rau industrial chav, tub yees los yog cua sov.
Tom qab txias, tso → economizer → preheat feedwater → txhim kho boiler efficiency.
Lub tog raj kheej liner dej → phaj kub exchanger → nruab nrab kub dej → Siv rau cua sov fermentation tso tsheb hlau luam, domestic dej kub los yog cua sov.
Thaum muaj hluav taws kub tsis txaus, cov khoom siv hluav taws xob faib hluav taws xob los yog lub zog cia tank yuav tsum tau siv rau qhov siab tshaj plaws shaving.
cov tsis tseem ceeb
Exhaust outlet temperature control>150 ℃ to avoid dew point corrosion; Cylinder liner water outlet temperature>50℃los tiv thaiv lub cav overheating.
Lub hom phiaj ntawm kev ua tau zoo ntawm lub cev yog ntau dua 85%, thiab ntxiv 0.6kWh ntawm thermal zog yog tsim rau ib cubic meter ntawm biogas.
5, Cov ntsiab lus tseem ceeb tsim
Kev tiv thaiv corrosion thiab cov ntaub ntawv: ND steel / stainless hlau + tiv thaiv -corrosion txheej ntawm sab tso tawm; Sab dej ntawm lub tog raj kheej liner yog ua los ntawm titanium phaj / 316L stainless hlau los tiv thaiv corrosion los ntawm acidic condensed dej.
Optimization of heat transfer efficiency: increase the heat transfer area (fins/extended surface), increase the flow rate (Re>10 ⁴), thiab tswj qhov kub ntawm qhov sib txawv (kua sab Δ T Ntau dua lossis sib npaug li 30 degree, sab dej Δ T Ntau dua lossis sib npaug li 10 degree).
tswj lub tswv yim
Temperature control: exhaust outlet>150 degree, lub tog raj kheej liner dej kub 60-90 degree.
Load tracking: Thaum hloov cov kev ua haujlwm, ua kom cov khoom siv hluav taws xob ruaj khov los ntawm bypass li qub / lub zog cia tank.
Kev tiv thaiv kev ruaj ntseg: Tshaj kub / tshaj lub tswb nrov, tsis siv neeg txiav - tawm los tiv thaiv cov khoom puas.
