Thermostat ndi valavu yomwe imayendetsa njira yozizirira.Ndi chipangizo chosinthira kutentha, chomwe nthawi zambiri chimakhala ndi chigawo chozindikira kutentha, chomwe chimayatsa ndikuzimitsa kutuluka kwa mpweya, gasi kapena madzi powonjezera kutentha kapena kuzizira.
Thermostat imangosintha kuchuluka kwa madzi omwe amalowa mu radiator molingana ndi kutentha kwa madzi ozizira, ndikusintha momwe madzi amayendera kuti asinthe mphamvu yoziziritsira kutentha ndikuwonetsetsa kuti injiniyo imagwira ntchito m'malo oyenera kutentha.Thermostat iyenera kusungidwa muukadaulo wabwino, apo ayi idzakhudza kwambiri magwiridwe antchito a injini.Ngati valavu yayikulu ya thermostat imatsegulidwa mochedwa kwambiri, izi zimapangitsa injini kutenthedwa;ngati valavu yaikulu itsegulidwa mofulumira kwambiri, nthawi yotenthetsera injini idzakhala yaitali ndipo kutentha kwa injini kudzakhala kochepa kwambiri.
Zonsezi, ntchito ya thermostat ndikuteteza injini kuti isazizira kwambiri.Mwachitsanzo, injini ikamayamba kugwira ntchito bwinobwino, kutentha kwa injiniyo kungakhale kotsika kwambiri ngati palibe chotenthetsera chotenthetsera pamene mukuyendetsa m’nyengo yozizira.Panthawiyi, injini iyenera kuyimitsa kwakanthawi kuti madzi asayendetsedwe kuti atsimikizire kuti kutentha kwa injini sikutsika kwambiri.
Momwe makina opangira phula amagwirira ntchito
Thermostat yayikulu yomwe imagwiritsidwa ntchito ndi mtundu wa sera wotenthetsera.Pamene kutentha kozizira kumakhala kotsika kuposa mtengo wotchulidwa, parafini woyengedwa mu thupi la kutentha kwa thermostat imakhala yolimba, ndipo valavu ya thermostat imatsekedwa pakati pa injini ndi radiator pansi pa ntchito ya masika.Choziziriracho chimabwezeretsedwa ku injini kudzera pa mpope wamadzi kuti chiziyenda pang'ono mu injini.Pamene kutentha kwa choziziritsa kukufika pamtengo wotchulidwa, parafini imayamba kusungunuka ndipo pang'onopang'ono imakhala yamadzimadzi, ndipo voliyumu imawonjezeka ndipo chubu la rabara limakanikizidwa kuti lichepetse.Pamene chubu cha rabara chikucheperachepera, kukankhira mmwamba kumayikidwa pa ndodo yokankhira, ndipo ndodo yokankhira imakhala ndi valavu yobwerera kumbuyo kuti atsegule valavu.Panthawiyi, choziziritsa kukhosi chimadutsa mu radiator ndi valavu ya thermostat, kenako chimabwereranso ku injini kudzera pa mpope wamadzi kwa kuzungulira kwakukulu.Ma thermostats ambiri amapangidwa mu payipi yotulutsira madzi yamutu wa silinda.Ubwino wa izi ndikuti mawonekedwewo ndi osavuta, ndipo n'zosavuta kuchotsa thovu la mpweya mu dongosolo lozizira;kuipa kwake ndikuti thermostat nthawi zambiri imatsegulidwa ndikutsekedwa panthawi yogwira ntchito, zomwe zimapangitsa kuti pakhale oscillation.
Chigamulo cha boma
Injini ikayamba kuzizira, ngati pali madzi ozizira akuyenda kuchokera ku chitoliro cholowera m'chipinda chapamwamba chamadzi a thanki yamadzi, zikutanthauza kuti valavu yayikulu ya thermostat siyingatsekeke;pamene kutentha kwa madzi ozizira a injini kupitirira 70 ℃, chipinda chapamwamba chamadzi cha thanki lamadzi chimalowa Ngati palibe madzi ozizira omwe akuyenda kuchokera mupopi yamadzi, zikutanthauza kuti valavu yaikulu ya thermostat sichikhoza kutsegulidwa bwinobwino, ndipo kukonzanso kukufunika panthawiyi.Kuyang'ana kwa thermostat kumatha kuchitidwa pagalimoto motere:
Kuyang'ana injini itayambika: Tsegulani chivundikiro cholowera madzi cha radiator, ngati mulingo wozizirira mu radiator ndi static, zikutanthauza kuti thermostat ikugwira ntchito bwino;mwinamwake, zikutanthauza kuti thermostat sikugwira ntchito bwino.Izi zili choncho chifukwa pamene kutentha kwa madzi kuli kochepa kuposa 70 ° C, silinda yowonjezera ya thermostat imakhala mu mgwirizano ndipo valavu yaikulu imatsekedwa;pamene kutentha kwa madzi kuli pamwamba pa 80 ° C, silinda yowonjezera ikukula, valavu yaikulu imatsegulidwa pang'onopang'ono, ndipo madzi ozungulira mu radiator amayamba kuyenda.Pamene kutentha kwa madzi kumasonyeza pansi pa 70 ° C, ngati madzi akuyenda pa chitoliro cholowera cha radiator ndi kutentha kwa madzi ndi kutentha, zikutanthauza kuti valavu yaikulu ya thermostat sitsekedwa mwamphamvu, zomwe zimapangitsa kuti madzi ozizira azizungulira. msanga.
Yang'anani kutentha kwa madzi kukakwera: Kumayambiriro kwa ntchito ya injini, kutentha kwa madzi kumakwera mofulumira;pamene kutentha kwa madzi kumasonyeza 80, kutentha kumachepa, kusonyeza kuti thermostat imagwira ntchito bwino.M'malo mwake, ngati kutentha kwa madzi kwakhala kukukwera mofulumira, pamene kuthamanga kwa mkati kumafika pamtunda wina, madzi otentha amatuluka mwadzidzidzi, zomwe zikutanthauza kuti valavu yaikulu imatsekedwa ndipo mwadzidzidzi imatsegulidwa.
Pamene mulingo wa kutentha kwa madzi ukusonyeza 70°C-80°C, tsegulani chivundikiro cha rediyeta ndi choyatsira radiator, ndi kumva kutentha kwa madzi ndi dzanja.Ngati zonse zili zotentha, zikutanthauza kuti thermostat ikugwira ntchito bwino;ngati kutentha kwa madzi pa malo olowera madzi a radiator ndi otsika, ndipo radiator yadzazidwa Ngati palibe madzi otuluka kapena madzi oyenda pang'ono pa chitoliro chamadzi cholowera m'chipindacho, zikutanthauza kuti valavu yayikulu ya thermostat siyingatsegulidwe.
Thermostat yomwe yamamatira kapena yosatsekedwa mwamphamvu iyenera kuchotsedwa kuti iyeretsedwe kapena kukonzedwa, ndipo isagwiritsidwe ntchito nthawi yomweyo.
Kuyendera nthawi zonse
Kusintha kwa Thermostat
Kusintha kwa Thermostat
Malinga ndi chidziwitso, moyo wotetezeka wa sera thermostat nthawi zambiri ndi 50,000km, motero umayenera kusinthidwa pafupipafupi malinga ndi moyo wake wotetezeka.
Malo a Thermostat
Njira yoyendera ya thermostat ndikuwunika kutentha kotsegulira, kutentha kotseguka ndikukweza valavu yayikulu ya thermostat pazida zosinthira kutentha kwanthawi zonse.Ngati chimodzi mwa izo sichikukwaniritsa mtengo wotchulidwa, thermostat iyenera kusinthidwa.Mwachitsanzo, pa thermostat ya injini ya Santana JV, kutentha kotsegulira kwa vavu yayikulu ndi 87 ° C kuphatikiza kapena kuchotsera 2 ° C, kutentha kotseguka ndi 102 ° C kuphatikiza kapena kuchotsera 3 ° C, ndikukweza kotseguka kwathunthu. ndi 7mm.
Kukonzekera kwa Thermostat
Nthawi zambiri, choziziritsa choziziritsa madzi chimalowa m'thupi ndikutuluka kuchokera pamutu wa silinda.Ma thermostats ambiri amakhala pamzere wotulutsira mutu wa silinda.Ubwino wa makonzedwe awa ndikuti mawonekedwewo ndi osavuta, ndipo n'zosavuta kuchotsa thovu la mpweya m'madzi ozizira;kuipa kwake ndikuti oscillation imachitika pomwe thermostat imagwira ntchito.
Mwachitsanzo, poyambitsa injini yozizira m'nyengo yozizira, valavu ya thermostat imatsekedwa chifukwa cha kutentha kochepa kozizira.Choziziriracho chikangozungulira pang'ono, kutentha kumakwera mofulumira ndipo valavu ya thermostat imatsegulidwa.Panthawi imodzimodziyo, choziziritsa kutentha chochepa mu radiator chimathamangira m'thupi, kotero kuti choziziritsa chizizizira kachiwiri, ndipo valavu ya thermostat imatsekedwa kachiwiri.Kutentha kwa kozizira kukakweranso, valavu ya thermostat imatsegulidwanso.Mpaka kutentha kwa choziziritsa kuzizira kukhazikika, valavu ya thermostat idzakhala yokhazikika ndipo sidzatsegula ndi kutseka mobwerezabwereza.Chodabwitsa kuti valavu ya thermostat imatsegulidwa mobwerezabwereza ndikutsekedwa mu nthawi yochepa imatchedwa thermostat oscillation.Izi zikachitika, zimawonjezera mafuta agalimoto.
Thermostat imatha kukonzedwanso mu chitoliro chotulutsira madzi cha radiator.Kukonzekera kumeneku kumatha kuchepetsa kapena kuthetsa zochitika za oscillation za thermostat, ndipo zimatha kuwongolera bwino kutentha kwa choziziritsa kukhosi, koma mawonekedwe ake ndi ovuta komanso mtengo wake ndi wokwera, ndipo amagwiritsidwa ntchito kwambiri pamagalimoto ochita bwino kwambiri komanso magalimoto omwe nthawi zambiri amayendetsa pagalimoto. kuthamanga kwambiri m'nyengo yozizira.[2]
Kusintha kwa Wax Thermostat
Kusintha kwa Magawo a Magalimoto Oyendetsedwa ndi Kutentha
Shanghai University of Engineering and Technology yapanga mtundu watsopano wa thermostat wokhala ndi thermostat ya parafini monga thupi la kholo ndi koyilo yozungulira yooneka ngati yamkuwa yopangidwa ndi mawonekedwe amkuwa ngati chinthu chowongolera kutentha.Thermostat imakondera kasupe pamene kutentha kwa silinda yoyambira ya galimoto kumakhala kochepa, ndipo kasupe wa alloy compression amachititsa kuti valavu yaikulu ikhale yotseka ndi valavu yothandizira kuti itsegulidwe pang'ono.Kutentha kozizira kumakwera kufika pamtengo wina, kasupe wa alloy memory amakula ndikumakanikiza kukondera.Kasupe amapanga valavu yaikulu ya thermostat kutseguka, ndipo pamene kutentha kozizira kumawonjezeka, kutsegula kwa valve yaikulu kumawonjezeka pang'onopang'ono, ndipo valavu yothandizira imatseka pang'onopang'ono kuti ipange kuzungulira kwakukulu.
Monga gawo lowongolera kutentha, alloy memory alloy imapangitsa kuti ntchito yotsegulira valavu isinthe bwino ndi kutentha, zomwe zimapindulitsa kuchepetsa kupsinjika kwa kutentha kwamadzi ozizira ozizira mu tanki yamadzi pa cylinder block injini yoyaka mkati ikayamba, ndipo nthawi yomweyo imasintha moyo wautumiki wa thermostat.Komabe, thermostat imasinthidwa pamaziko a sera, ndipo kapangidwe kazinthu zowongolera kutentha kumakhala kochepa pamlingo wina.
Kusintha kwa ma valve
Thermostat imakhudza kuzizira kwamadzimadzi.Kutayika kwa madzi ozizira omwe akuyenda kudzera mu thermostat kumabweretsa kuwonongeka kwa mphamvu ya injini yoyaka mkati, yomwe singanyalanyazidwe.Valve imapangidwa ngati silinda yopyapyala yokhala ndi mabowo pakhoma lakumbali, ndipo njira yotuluka madzi imapangidwa ndi dzenje lakumbali ndi dzenje lapakati, ndipo mkuwa kapena aluminiyamu imagwiritsidwa ntchito ngati zida za valve kuti valavu ikhale yosalala. kuchepetsa kukana ndi kusintha kutentha.Kuchita bwino kwa chipangizocho.
Flow circuit kukhathamiritsa kwa sing'anga yozizira
Malo abwino ogwirira ntchito a injini yoyaka mkati ndikuti kutentha kwa mutu wa silinda kumakhala kocheperako komanso kutentha kwa silinda ndipamwamba kwambiri.Pachifukwa ichi, dongosolo lozizira logawanika-kutuluka iai likuwonekera, ndipo mawonekedwe ndi malo oyika a thermostat amagwira ntchito yofunikira mmenemo.Kuyika kwa ntchito yolumikizana ya ma thermostats, ma thermostats awiri amayikidwa pa bulaketi lomwelo, sensa ya kutentha imayikidwa pa thermostat yachiwiri, 1/3 ya kutuluka kozizira imagwiritsidwa ntchito kuziziritsa chipika cha silinda, 2/3 Chozizira. Kuthamanga kumagwiritsidwa ntchito kuziziritsa mutu wa silinda.
