Nws tshwm sim tias kev siv dej los ua cov khoom siv hluav taws xob tsis tuaj yeem ua tau. Nyob rau hauv cov xwm txheej zoo li no, "tiv thaiv khov" rau cua sov tuaj yeem cawm. Cov kua dej no muaj qee qhov kev xav tau rau kev ua haujlwm. Nws muaj cov yam ntxwv sib txawv ntawm cov dej, uas yuav tsum tau coj mus rau hauv tus account thaum tsim lub tshuab cua sov.
Destination
Nws nyob deb ntawm qhov tsis pub leejtwg paub tias ib qho tseem ceeb tshaj plaws ntawm lub tsev ntiag tug yog cov cua sov. Tom qab tag nrho, tsuas yog nrog kev pab los ntawm nws tuaj yeem tiv taus huab cua hnyav, los ntawm qhov tsis muaj leej twg muaj kev nyab xeeb hauv peb lub teb chaws, thiab qhov tseeb, nyob rau lub caij ntuj no yog deb ntawm qhov tsis tshua muaj tshwm sim. Tab sis, txawm tias qhov kev npaj txhij ntawm cov neeg siv khoom rau Frost, nws yog ib qho tsim nyog yuav tau pom qee qhov xav tsis thoob ua ntej. Thiab, tej zaum, qhov txaus ntshai tshaj plaws ntawm lawv tuaj yeem yog cov cua sov khov - nws tsis yog rau tsis muaj dab tsi uas tus mob no suav tias yog xwm txheej ceev.
raucua sov system xwm txheej tsis zoo. Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias qhov no tuaj yeem tshwm sim tsis tau tsuas yog nyob rau hauv lub hauv paus boiler chav, tab sis kuj nyob rau hauv ib tug neeg boiler. Vim li no, thaum tsim ib qho system, nws yog ib qho tsim nyog yuav tau xav txog cov xwm txheej los muab kev ruaj ntseg ntxiv.
Raws li cov kws tshaj lij, qhov teeb meem tshwm sim hauv ib lub tsev ntiag tug yog qhov tsis ua haujlwm ntawm boilers, thiab, raws li txoj cai, qhov no ib txwm tshwm sim tsis tau xav txog. Txhawm rau tiv thaiv qhov kev xav tsis thoob li no, nrog rau kev tiv thaiv qhov tsis ua haujlwm ntawm cov cua sov thiab nws cov cua txias tom qab, cov kws tshaj lij qhia kom siv cov kua dej tiv thaiv kab mob.
Composition
"Antifreeze" rau cua sov - qhov no yog tib yam tshuaj tiv thaiv kab mob los yog tshuaj tiv thaiv kab mob. Cov cuab yeej tseem ceeb ntawm cov coolant no yog tsis tig mus rau hauv dej khov thaum kub poob. Nyob rau hauv cov ntaub ntawv no, lub thickening ntawm cooled muaj pes tsawg leeg tshwm sim. Txhua yam tshuaj tiv thaiv kab mob rau cov cua sov yog ua raws li tib txoj cai. Nws muaj cov hauv qab no:
- khoom (ntxiv) lub luag haujlwm rau cov yam ntxwv ntawm cov khoom sib xyaw;
- tshuaj (inhibitors) uas tiv thaiv corrosion;
- cov khoom xyaw tseem ceeb;
- cawv (glycol) base.
khoom muaj nqis
Yog li, "tsis khov" thiab rau cua sov yog ib qho cawv. Glycol nws tus kheej tsis txaus ntshai, tab sis qee cov tshuaj ntxiv tuaj yeem ua rau muaj kev phom sij rau kev noj qab haus huv. ua activetivthaiv nyob rau hauv lub antifreeze kua yuav protrude:
- YGlycerin.
- YPropylene glycol.
- YEthylene glycol.
YEthylene glycol
Ethylene glycol-based coolant yog nruj me ntsis txwv tsis pub siv hauv tsev nrog cov neeg nyob ruaj khov. Cov kev txwv no yog vim qhov tseeb tias qhov no "tiv thaiv khov" rau cua sov yog tshuaj lom heev thiab, yog tias nws los rau hauv cov tawv nqaij, tuaj yeem ua rau kub hnyiab. Thiab cov kua lossis roj nkag mus rau hauv lub cev tuaj yeem ua rau muaj qhov tshwm sim loj, mus txog rau kev tuag.
Tosol
Tus paub zoo tias tsis muaj tshuaj tiv thaiv kab mob - lub tshuab ua kom khov, uas qee zaum kuj tau nchuav rau hauv lub tshuab cua sov - yog tsim los ntawm ethylene. Txawm li cas los xij, yog tias muaj qhov tsawg tshaj plaws ntawm tib neeg kev sib cuag nrog ethylene glycol, ces nws yuav tsum tau zam rau ntau yam:
- Nyob rau hauv ob-circuit boilers, sib tov yog ntxiv rau cov dej kub.
- Yuav ua li cas.
- Muaj peev xwm evaporation ntawm expansion tank qhib hom.
Ethylene glycol tiv thaiv cov kua dej khov tsis raug tso cai rau cov tshuab uas siv ob lub voj voog boiler ua lub rhaub.
Y Propylene Glycol
Propylene glycol-based coolant yog tsis muaj tshuaj lom. Tau kawg, qhov no tsis tau txhais hais tias koj tuaj yeem haus tau, tab sis yog tias koj tau txais nws tsawg kawg nkaus ntawm daim tawv nqaij lossis sab hauv, yuav tsis muaj teeb meem kev noj qab haus huv.
Glycerin Y
Glycerin "anti-freeze" rau cua sov (tus nqi qis)tau nchuav txij li nruab nrab ntawm lub xyoo pua nees nkaum thiab tau ua tiav siv rau niaj hnub no. Glycerin yog ib qho kev kho mob thoob ntiaj teb, thiab tsis zoo li ob qho dhau los, nws tsis qhuav roj hmab, tab sis rov ua dua. Hauv lwm lo lus, cov kua glycerine ua raws li cov roj ntsha rov ua dua tshiab ntawm cov roj hmab, yog li koj tsis tas yuav txhawj xeeb txog qhov xwm txheej ntawm cov roj hmab foob.
Txheej txheem cej luam ntawm cov tuam txhab
Ntawm cov neeg siv khoom Lavxias, cov neeg nyiam tshaj plaws "tsis khov" rau cov khoom cua sov hauv tsev xws li:
- Kub Ntshav-65Eco.
- "Stugna-N"
- Nyob hauv tsev.
Thaum xaiv cov tshuaj tiv thaiv kab mob, nws yog ib qho tseem ceeb kom nco ntsoov tias cov ntsiab lus ntawm propylene glycol hauv nws qhia tias cov txheej txheem ua kua crystallization tshwm sim ntawm qhov kub ntawm -60 ° C.
Antifreeze rau cua sov: nqe thiab cov ntaub ntawv kev
| Ntse | XNT-40 | "Cov Ntshav Kub 30 Eco" | "kwv kub 30 Eco" | "Dixis Top" | "Sov tsev 30 Eco" | |
| xim | pob tshab | Red fluorescent | Red fl-ny | Green fl-ny | Yellow ntsuab fl-ny | Green fl-ny |
| Heat peev | 4, 19 kJ(kg×K) | 3, 57 kJ(kg×K) | 3, 56 kJ(kg×K) | 3, 55 kJ(kg×K) | 3, 6 kJ(kg×K) | 3, 62 kJ(kg×K) |
| Viscosity | 1 mm 2/C | 7, 1mm 2/S | 6, 1mm 2/S | - | - | 5, 86mm 2/C |
| npog taw tes | 100°C | 106°C | 108°C | 106°C | 104°C | 106°C |
| Txias pib kub | 0°C | -40°C | -30°C | -30°C | -30°C | -30°C |
| Density | 1 g/cm3 | 1.075g/cm3 | 1.05g/cm3 | 1.045-1.05g/cm3 | 1.05g/cm3 | 1.04 g/cm3 |
| pH | 7 | 8-10 | 8, 0-9, 5 | 8, 0-9, 5 | 8,7 | 7, 5-9, 0 |
| Price per liter | 20 rub. | 180 RUB | 130 RUB | 80 RUB | 115 RUB | 80 RUB |
Qhia thiab tawm tswv yim los ntawm cov kws tshaj lij
Tau kawg, cov kua "tsis khov" rau cua sov muaj cov khoom sib txawv, cov yam ntxwv thiab kev tshuaj xyuas ntawm daim ntawv thov, tab sis qhov xwm txheej tseem ceeb yog qhov tsis muaj qhov nyiam khov. Cov muaj pes tsawg leeg ntawm antifreeze yog txiav txim los ntawm lub kub tswj ntawm lub crystallization tshwm sim. Lawm, koj yuav tsum xaiv qhov kub thiab txias, uas yog qhov zoo rau koj thaj chaw huab cua.
Hom cua sov qhov ntsuas seb hom "tiv thaiv khov" hauv tsev cua sov yuav yog qhov zoo tshaj plaws. Raws li tau hais los saum no, tag nrho cov tshuaj tiv thaiv kab mob yog tsim los ntawm ntau yam tshuaj. Cov muaj pes tsawg leeg yuav muaj ethylene glycol, qhov no yog cov tshuaj lom, yog li nwsnws raug tso cai siv tsuas yog hauv cov tshuab cua sov ntawm qhov kaw. Antifreeze raws li propylene glycol, raws li cov kws tshaj lij, tsis muaj tshuaj lom.
Antifreezes pab txuas ntxiv lub neej ntawm tag nrho cov cua sov, nrog rau cov radiators. Thiab qhov tseem ceeb tshaj, xws li lub coolant tiv thaiv cov tsos ntawm cov roj tsim.
Cov kua dej tiv thaiv khov yog sib xyaw ntawm propylene glycol nrog ntxiv ntawm ntau yam inhibitory Cheebtsam. Qhov nruab nrab kev pab cuam lub neej ntawm antifreeze yog 4-5 xyoos.
Zaj lus
Qhov zoo "tiv thaiv khov" rau cov tshuab cua sov yuav tsum xyuas kom tsis muaj kev cuam tshuam ntawm lub kaw lus, txawm tias thaum muaj xwm txheej ceev. Yog li ntawd, txuag ntawm kev yuav khoom antifreeze yog kiag li impractical. Koj tsuas tuaj yeem txuag tau ntawm diluting nws nrog dej distilled, tab sis tsuas yog tias koj tsis npaj ua haujlwm cua sov hauv qhov xwm txheej hnyav, piv txwv li, nyob rau sab qaum teb ntawm lub tebchaws.
