Coolant. Thaum twg los hloov nws?

Sib nrug los ntawm cov roj cav thiab cov dej nres, cov dej txias yog cov dej ua haujlwm thib peb thiab tseem ceeb tshaj plaws hauv peb lub tsheb. Hmoov tsis zoo, txawm hais tias nws ua lub luag haujlwm tseem ceeb, hauv kev siv txhua hnub nws feem ntau underestimated thiab tsis nco qab lawm.

Qhov tseeb, lub coolant hauv lub tsheb yog dab tsi?

Nws txoj hauj lwm yog ua kom qhov kub thiab txias ntawm lub hwj chim chav tsev nyob rau hauv qhov kev pom zoo. Thiab thaum nws nce siab, lub coolant pib hloov cov hluav taws xob hluav taws xob ntawm lub cav thiab lub tshuab hluav taws xob uas nws txias kom muaj peev xwm dissipate qhov kub thiab txias hauv qhov system dua. Lwm qhov kev ua haujlwm thib ob ntawm cov kua yog kom sov lub tsheb sab hauv.

Tau kawg, tus tsav tuaj yeem ua kom txias nrog huab cua - qhov no yog qhov hu ua cua txias ncaj qha (raws li nws yog, piv txwv li, hauv cov menyuam yaus nto moo), tab sis qhov kev daws teeb meem no - txawm tias pheej yig dua - muaj ntau yam tsis zoo uas yuam cov tuam txhab lag luam feem ntau siv. classic kua txias system (hu ua indirect cooling).

Coolant. Kub dhau, txias dhau

Cov xwm txheej nyob rau hauv uas lub coolant "ua hauj lwm" yog unenviable. Nyob rau lub caij ntuj no - rho tawm qhov kub thiab txias, feem ntau ncav cuag 20, rho tawm 30 degrees C. Thaum lub caij ntuj sov, tshaj 110 degrees C. Thiab nws yog ib qho nyuaj rau ntseeg hais tias ib tug zoo tib yam kais dej yog siv los txias lub cav! Niaj hnub no, hmoov zoo, peb tsuas pom dej evaporating los ntawm lub radiator ntawm archival films.

Yog li ntawd, lub coolant yuav tsum muaj qhov qis, txawm tias -35, -40 ° C khov taw tes thiab kub kub taw tes.

Lub coolant muaj dej, ethylene los yog propylene glycol thiab ib pob khoom ntxiv. Lub luag haujlwm ntawm glycol yog txo qis qhov khov ntawm cov kua. Txij li thaum glycol yog caustic, additives suav nrog, ntawm lwm tus. anti-corrosion additives (hu ua corrosion inhibitors), stabilizers, anti-foam additives, dyes.

Tam sim no muaj peb hom kev tiv thaiv corrosion additives siv nyob rau hauv coolants. Nyob ntawm seb hom additives, muaj IAT, OAT lossis HOAT kua. Lub tuam txhab tsim tsheb tau teev tseg hauv tus tswv lub tsheb phau ntawv uas hom tshuaj tiv thaiv corrosion yuav tsum tau siv rau hauv lub cav muab. 

IAT Fluid (Inorganic Additive Technology). - inorganic additive technology) feem ntau pom zoo rau cov cav nrog lub cam khwb cia hlau thaiv thiab lub taub hau txhuas. Lub ntsiab Cheebtsam ntawm anti-corrosion additives yog silicates thiab nitrites, uas accumulates nyob rau hauv lub system, tiv thaiv corrosion. Silicates yooj yim khom ntawm cov hlau, thiab thaum lawv cov ntsiab lus hauv kev daws poob qis dua 20%, daim ntawv tso nyiaj. Qhov tsis zoo ntawm silicate corrosion inhibitors yog tias lawv hnav sai sai, yog li cov kua IAT yuav tsum tau hloov ntau zaus (feem ntau txhua txhua 2 xyoos). Feem ntau, IAT kua yog xim ntsuab lossis xiav. 

OAT (organic acid technology - technology ntawm cov organic additives) - organic acids yog siv los ntawm silicates. Cov txheej txheem tiv thaiv corrosion yog 20 lub sij hawm thinner dua hauv IAT thev naus laus zis. Organic acids hnov ​​​​mob nrog cov hlau lead uas feem ntau siv hauv cov tsheb radiators qub, yog li OAT yog siv rau hauv cov tsheb tshiab nrog aluminium radiators. OAT hom refrigerant kuj muaj cov cua kub zoo dua li IAT hom kua thiab ua kom muaj zog, yog li nws yog cov kua nrog lub neej ntev kev pab cuam thiab feem ntau yog xim txiv kab ntxwv, paj yeeb lossis ntshav. 

HOAT Fluid (Hybrid Organic Acid Technology - hybrid technology ntawm cov organic additives) muaj anti-corrosion additives raws li silicates thiab organic acids. Cias muab, peb tuaj yeem hais tias lawv muaj cov txiaj ntsig ntawm IAT thiab OAT kua. Cov kua dej no coj zoo li IATs tab sis muaj lub neej ntev dua thiab muab kev tiv thaiv zoo dua rau cov khoom siv txhuas thiab tiv thaiv dej twj tso kua mis los ntawm pitting.

Radiator kua dej yog cov lag luam muaj nyob rau hauv cov ntsiab lus kom diluted nyob rau hauv cov proportions tsim nyog nrog demineralized dej los yog raws li ib tug npaj-rau-siv tov. Cov tom kawg kuj yog qhov yooj yim tshaj plaws los siv hauv lub neej txhua hnub. 

Yuav ua li cas txhawm rau txheeb xyuas qhov txias txias?

Txhua tus, txawm tias tus neeg tsav tsheb tsis muaj kev paub, tuaj yeem tshawb xyuas cov qib coolant. Txawm li cas los xij, muaj qee cov ntsiab lus tseem ceeb uas yuav tsum nco ntsoov. Ua ntej tshaj plaws, lub tsheb yuav tsum tau muab tso rau ntawm qhov chaw tiaj tus. Nws yog ib qho tseem ceeb uas lub tsheb lub cav, thiab yog li ntawd cov kua dej yuav tsum txias. Vim li no, nws tsis tuaj yeem kuaj xyuas cov kua dej tam sim ntawd tom qab lub tsheb pib txav thiab nres.

Qhov zoo tshaj plaws coolant theem yuav tsum nyob nruab nrab ntawm lub min. thiab max. ntawm lub tank.

Cov kua dej qis dhau yuav qhia tau tias muaj pa hauv qhov cua txias, thiab qhov siab dhau lawm yuav yog vim muaj huab cua hauv qhov system. Hauv ob qho tib si, qhov ua rau ntawm cov kua dej kuj tuaj yeem ua rau lub tog raj kheej lub taub hau gasket puas.

Tom qab unscrewing lub hau - nco ntsoov, txawm li cas los xij, yog tias cov kua tau txias - peb tuaj yeem pom tias cov xim ntawm cov kua tau hloov thiab yog tias muaj cov impurities hauv nws. Ib qho kev hloov ntawm cov xim ntawm cov kua yuav qhia tau tias cov roj cav tov nrog nws.

Thaum twg yuav tsum tau hloov cov kua dej?

Coolant maj mam poob nws cov khoom nyob rau lub sijhawm, tsis hais seb lub tsheb puas nyob hauv chav nres tsheb lossis ntawm txoj kev. Yog li ntawd - nyob ntawm seb hom kua dej - nws yuav tsum tau hloov txhua txhua 2, 3 lossis siab tshaj 5 xyoos. Cov ntaub ntawv hais txog cov kua dej twg yuav tsum tau siv hauv lub tsheb no thiab tom qab lub sijhawm twg nws yuav tsum tau hloov pauv tuaj yeem pom hauv lub tsheb tus tswv phau ntawv lossis hauv kev pabcuam. Peb kuj tuaj yeem pom nws ntawm lub ntim ntawm cov kua, tab sis ua ntej peb yuav tsum paub seb yuav siv hom twg.

Saib kuj: Tax ntawm kev yuav tsheb. Thaum twg kuv yuav tsum them?

Kev hloov coolant yog qhov tseem ceeb thaum yuav ib lub tsheb siv. Koj yuav tsum tau hloov tam sim ntawd cov dej nres thiab cov roj cav nrog rau cov lim dej.

Kev sib xyaw ntawm coolant

Txawm hais tias ethylene glycol raws li cov kua dej tuaj yeem sib xyaw ua ke, peb yuav tsum tsuas yog siv cov tshuaj no thaum muaj xwm txheej ceev thaum peb tsuas yog xav tau ntxiv cov kua thaum muaj xwm txheej ceev (thaum muaj xwm txheej ceev peb tuaj yeem ntxiv cov dej dawb los yog zoo dua distilled). Thiab txij li thaum peb tau txais coolant ntawm yuav luag txhua qhov chaw nres tsheb roj hnub no, peb tsis tas yuav siv cov kev daws teeb meem kub ntxhov. Nws tseem yuav tsum tau nco ntsoov tias tom qab xws li kev sib tov nws yog ib txwm zoo kom ntws cov qub coolant, yaug lub system thiab sau nyob rau hauv ib tug tshiab pom zoo rau peb lub cav.

Saib ntxiv: Kev sim Skoda Kamiq - qhov tsawg tshaj plaws Skoda SUV