Temperature inkinobho: isikimu, isimiso wokusebenza, aphoyintimenti

Ukuvikelwa zikagesi kusukela umthwalo ngokweqile edluliselwe ezishisayo inikeza. Ngaphandle kwayo, izintambo ukuze overheat, okuholela ukwehluleka kwanoma ukwahlukanisa.

Umgomo we operation

ezishisayo edluliselwe umsebenzi iwukuba unqamula wesifunda lapho wamanje egeleza ngokusebenzisa lidlula bokuzisholo. I-apharathasi siqukethe termopodogrevatelya okuyothi kagesi sihamba, futhi ipuleti we bimetal, okuyinto zikhubazekile phezu Ukushisa kuvula oxhumana chain. Ayanda wamanje, ngokushesha lo msebenzi.

Ngemva evulekile wesifunda thermocouple ayaphola bese ubuyela esimweni saso sokuqala.

Izinhlobo Amacebo fuser

edluliselwe Thermal usebenza emacebweni ezimbili:

• usuke oxhumana zivaliwe emuva amandla;
• sikimu kabusha ngokuzimela.

Samuntu sokuqala iphathelene ezishisayo zokuzivikela edluliselwe (kagesi contactors, wesifunda amadlambi et al.). Eyesibili isetshenziswa lokushisa ezilungisiwe izinto izinhlelo (isiqandisi, i-ayini, evuthayo phansi et al.).

I ipuleti bimetallic ngesikhathi kuka enza izinto maqembu, ephumela circuit kagesi. Ngenxa ongaphakeme impendulo ijubane idivayisi abukwamukelanga arc nge nomphumela ofiselekayo. Ngo amadivayisi edluliselwe lanamuhla zisetshenziswa, okwandisa evulekile isivinini wesifunda.

Izinhlobo udlulisela ezishisayo

udlulisela Thermal akhethiwe ngesikhathi okuzisholo motor umthwalo esingeqile ngokuhlela 20-30%. Nge onjalo ezithothene sindisa kwenzeka ngemva 20 imiz. I ipuleti bimetallic sags kancane. Kule ndaba, ke enza izikhonkwane ngokusebenzisa kuyashesha kudivayisi (contact oshaya). Lezi zinhlobo ezilandelayo edluliselwe ezishisayo.

1. RTP - ukuvikela isigaba izinjini ezintathu nge thermoelements ku imisinga kuze kufinyelele 600 A kanye DC voltage amanethiwekhi kuze 150 A. ipuleti bimetal ukufuthelana ngu heater kanye egeleza therethrough zamanje. ashukumisa lwamanje ngesandla ilungiswe ukusonteka kokuqala plate. Setha kabusha ngokucindezela inkinobho, kodwa kukhona inguqulo nge self-kabusha.
2. RTL - ukuze kuvikeleke ezintathu isigaba lokungeniswa izinjini by sindisa isikhathi eside, isigaba unbalance kuyilapho Jamming Rotor, noma ekuqaleni ezinzima. Ezimweni ezinjalo, ezisebenza ngogesi ephakamisa izindlela, amaphampu, abalandeli, kanye nezinye imishini. Edluliselwe ezifakiwe ukuziqalela, futhi wenze amadivaysi ngabanye.
3. PTT - kufakwe kits ukuvikelwa ezintathu isigaba lokungeniswa izinjini by sindisa isikhathi eside, isigaba unbalance, njll Zingase linamathele .. actuators Magnetic e AC futhi DC izifunda.

NeKwakha ukucushwa

I udlulisela electrothermal kufanele kube njalo ukubeka inani iveni. Okokuqala ukuhlolwa kuqinisekisa lokushisa abayicabange kusengaphambili zasendlini. Lapho Hlola isimo oxhumana nabo, bimetal amapuleti, izakhi yasibamba netindlela.

Ukufakwa ukuze ukushisa thermostat adjustable ukwenza maqondana ngokwandisa noma ukunciphisa, lapho division esikalini ngasinye oluhambisana sokuchitshiyelwa 10 ° C. Uma udlulisela babe lokushisa isinxephezelo, akukho udinga ukulungiswa.

Ukulungiswa senziwa sokuqhuba ukwanda ngasitfupha e mina _nom. Nge inertia amadivayisi ongaphakeme ocushiwe ku Isikhawu 0.5-4 s, futhi nge ezinkulu - kusukela imizuzwana 4 kuya 25. Khona-ke, ngokwenza inyuka wamanje kusuka 1.2 kuya mina _nom. Udlulisela ngaleyo ndlela Kufanele unqamule ukuxhumana oxhumana 20 imiz.

amath- elula

Temperature switch kungenziwa ezidalwe zisuselwa kagesi asetshenziselwa ukugcina predetermined lokushisa imodi ye-computer, izakhiwo, incubator futhi t. D. Ukuze lokhu thermostat lingasetshenziswa, phezu kwengungu okuyindawo ehlanganisa inzwa ehlanganisa wokulinganisa inkomba poluplecha thermistor R ₂ kanye resistors R _1, R _3, R _4.

Lapho ushintsho lokushisa kuyahlukahluka ukumelana ukubaluleka R _2. Isignali iphutha sidla kusukela kwebhuloho uvo LM393 IC. Isebenza ku Imodi comparator lapho itheku 3 isiginali ye-analog kuyinto ushintsho olwenzeka isigubhukane lisuke yayo isimo kokusebenzayo yayo. Esiginali kusukela wesifunda okukhipha is banezelwa Transistor Q _1, bese fan nokucupha kwenzeka. Epholisa le thermistor, ke comparator sekuqalile off fan. Ngale ndlela, ukuphathwa ezishisayo kwenzeka nge air Ukupholisa ngomoya.

Inzwa ukulawula lokushisa Ukushisa phansi

Osebenzisa isimiso esifana ukuphatha uhlelo Ukushisa phansi.

I-AC voltage 230 isetshenziswa idivayisi yokufaka bese bashintsha kwamandla transformerless kuya njalo 15 W. I ku embundwini kuchazwa ehlukanisayo R _4, R _{5, R-9.} Lapho phansi ezibandayo, R ₉ thermistor ukumelana 10 ohms. On TL431 zener ithola isignali ngenhla 2.5 volts uchungechunge vd _3, R _6, HL _2, U _1. Okubonisa lokhu kwenziwa diode HL _2. Triac VS ₁ ivuliwe futhi voltage enikeziwe Ukushisa phansi. Lapho izinga lokushisa yayo ifinyelela Inani elinqunyiwe, R thermistor ukumelana ₉ (inzwa) is lehla ukuze diode Zener ngaleso control isignali okufakwayo ukubaluleka kuba esingaphansi kuka 2.5 V TL431 ikhiyiwe, nokuthi nabo optosimistor triac. Ngenxa yalokho, i-heater iyunithi ivaliwe. Njengoba nje phansi kuqala kuphole, inqubo iyaphindwa.

Okuncane kanye lokushisa esiphezulu kusethwa resistors R ₄ futhi R _5. umbundu Ukushintsha ama is kushintshwe emva ukufakwa inzwa _R-9. Its ephakathi nendawo phakathi ohlobo heater. Okuphuma amandla, eziqhutshwa edluliselwe ezishisayo, luncike ukubaluleka R ukumelana _7.

Ezayo inzwa ezikhumulweni ivaliwe tube shrinkable, bese livalwa nge isibopho ikhebula noma ingcina ungqimba. Iziphetho kungcono ukubeka emikhonweni zethusi sigcwale epoxy resin. amathayili phansi camera eziphezulu.

Indlela ukuxhuma thermostat ukuba heater, kungabonwa kulombhalo, okumelelwe emzimbeni onobuhle eziningi. It kungabuye atholakala incazelo zedivayisi.

Industrial thermostat for heater kungenziwa kukhethwe lezi zinhlobo ezilandelayo:

• electromechanical - manual ukusetha kabusha inkinobho;
• digital - control wenziwa izinkinobho sezinzwa noma ethintekayo, futhi ulwazi olufanele (izinga lokushisa wamanje kanye nezilungiselelo) uboniswa esibukweni;
• ehlelwe - yezilungiselelo heater zohlelo for predetermined kathi, futhi ukude kulawulwa ikhompyutha.

isiphetho

Kunezindlela eziningana indlela kokuxhuma edluliselwe ezishisayo kumadivaysi. Ngaphambili, babefanele ukuqoqa yezandla zabo. Manje emakethe, ungakhetha i-thermostat, ogama Isikimi ngokufanele njengentamo heater (boilers kagesi, phansi efudumele nabanye.). Kubalulekile ukunikeza ezidingekayo ukusebenza, nokwethenjelwa nokuphepha ukusebenza.