Ubushushu switsha: scheme, umgaqo yokusebenza, ukuqeshwa

Ukhuselo izixhobo zombane ukusuka umthwalo kwemfuneko irileyi thermal inikeza. Ngaphandle kwalo, iingcingo ukuba shushu ngokugqithisileyo, oko kukhokelele ukusilela ngaphambi kokuba usambathisa.

isimiso ukusebenza

umsebenzi relay thermal kukuba unokususa zeesekethe xa yangoku ayahamba singaphezu wesiqhelo. Izixhobo ibandakanya termopodogrevatelya apho umsinga wombane, kunye nembasa bimetal, nto leyo gqitha phezu lokushushubeza ivula chain abafowunelwa. Phezulu ngoku, i ngokukhawuleza lo msebenzi.

Emva kokuba thermocouple yesekethe evulekileyo ayaphola uze ubuyele endaweni yaso.

Iintlobo Amacebo fuser

relay thermal isebenza kusetyenziswe ezimbini:

• nabo usuke zivaliwe umva amandla;
• uhlelo kwakhona ngokuzimeleyo.

Lwalo lokuqala iphathelene yokhuselo thermal relay (kagesi contactors, amaza beesekethe et al.). Elesibini isetyenziswa lobushushu kulawulwa iinkqubo izinto (ifriji, i intsimbi, umgangatho shushu et al.).

Incence bimetallic kwindawo aphambuke enza izinto amaqela zoqhagamshelwano luvula kwisekethe yombane. Ngenxa yokwamkela ngesantya esiphantsi idivaysi ucime arc kunye neziphumo ebezifuneka. Kwizixhobo zanamhlanje relay zisetyenziswa, ukunyusa isantya yesekethe evulekileyo.

Types of baphinde thermal

baphinde thermal zikhethwa xa umthwalo motor wesiqhelo kunene khona nge-20-30%. Ngenxa esinjalo nokukhubeka sindisa kwenzeka emva imiz 20. Incence bimetallic SAGs kancinci. Kule nkalo, esisebenza phezu izikhonkwane ngokusebenzisa isixhobo eyanda (contact Bouncing). Ezi ndidi zilandelayo irileyi thermal.

1. RTP - ukukhusela Motors kwisigaba ezintathu thermoelements kwi imisinga ukuya ku-600 A kunye nothungelwano ombane DC ukuya ku 150 A. I-ipleyiti bimetal afudunyezwe nehitha kunye therethrough yangoku ugeleza. ashukumisa langoku ngesandla ingalungelelaniswa deformation lokuqala nembasa. Phinda ngokucinezela iqhosha, kodwa kukho uguqulelo kunye self-ukusetha.
2. RTL - ukukhusela iinjini kwesigaba sesithathu yoqheliso ngu ukucima kombane elide, isigaba unbalance ngoxa jamming plane, okanye ukuqala kakhulu. Kwiimeko ezinjalo, yokusebenza iindlela zombane wokuthwala, iimpompo, moya, kunye nezinye oomatshini. Ugqatso kufakwa kwi-starter, iyime izixhobo ngamnye.
3. PTT - ifakiwe iikhithi wokhuseleko yeemowutha kwesigaba sesithathu yoqheliso ngu ukucima kombane elide, isigaba unbalance, njl Basenokuba ibephakathi .. actuators Magnetic kwi AC kunye DC neziphaluka.

Control lolwakhelo

Le baphinde electrothermal kufuneka umana ukubeka ixabiso evenini. Okokuqala ukuhlolwa kwaye liqinisekisa lobushushu abanazo endlwini. Xa Hlola imeko abafowunelwa, iipleyiti bimetal, izinto eqwalasele kunye neendlela.

Ye ubushushu thermostat adjustable ukwenza ukunyusa okanye ukunciphisa, apho kwisahlulo ngalinye lesikali olungqamana ulungiso ukuya kwi-10 ° C. Ukuba baphinde babe imbuyekezo ubushushu, akukho luhlenga iyafuneka.

Uhlengahlengisa yenziwa ukuba isebenze ulwando oluphindwe-ezintandathu I _nom. Ne zixhobo inertia luyasebenza kwi lokuphumla 0.5-4 s, kunye enkulu - kwisekhondi-4 ukuya 25. Emva koko, ngokwenza unyuko zangoku kwi 1.2 ukuya I _nom. Ukubalisa ufanele qhawula abafowunelwa imiz-20.

thermostats elula

Ubushushu switch anokwenziwa ngokusekelwe zobuchwepheshe ezisetyenziswa ukugcina imo lobushushu igqitywe phambili yendlela olwakho ikhompyutha, isakhiwo, incubator kunye t. D. Ukuze oku thermostat lungasetyenziswa, ejikeleza eliquka zincwadi Womenzi equka wokulinganisa reference poluplecha thermistor R ₂ no resistors R _1, R _3, R _4.

Xa utshintsho ubushushu ziyohluka ixabiso ukuxhathisa _R-2. Uphawu isiphoso izakondliwa ibhulorho ukuya igalelo LM393 IC. It isebenza kwimo comparator apho ugwebu 3 uphawu analog i inguqu esikhawulezileyo kwimeko yayo off esebenzayo yayo. Uphawu ukusuka wesekethe yemveliso ziyanyuswa transistor Q _1, yaye ngoko ke fan kwaqala kwenzeka. Ayaphola lo thermistor, ngoko ke comparator ikwacima fan. Ngale ndlela, ulawulo thermal kwenzeka nge lungapholi emoyeni.

Woluvo ukulawula lobushushu floor zokufudumeza

On umgaqo ofanayo ukulawula inkqubo kumgangatho ukufudumeza.

I-AC ombane 230 isicelo kwisixhobo igalelo aze ke atshintshelwe kwi unikezelo transformerless amandla ukuya rhoqo 15 W. I-on Ungeno lichazwa nomabi R _4, R _{5, R-9.} Xa floor ebandayo, R ₉ thermistor uxhathiso akukho ohms-10. On TL431 zener wamkela umqondiso ngentla 2.5 volts chain vd _3, R _6, HL _{2, U-1.} Ibonisa oku kwenziwa diode HL _2. Triac VS ₁ ivuliwe kwaye ombane ebebunikwe loo zokufudumeza phantsi. Xa kwithempritsha yayo ufikelela ixabiso kwangaphambili, umlo thermistor _R-9 (isivamvo) uhle ukuze diode Zener kwi ulawulo ixabiso uphawu igalelo iba ngaphantsi kwe 2.5 V. TL431 itshixiwe, nabo ukuba optosimistor triac. Ngenxa yoko, iyunithi isifudumezi ivaliwe. Kamsinya nje emgangathweni iqala ukupholisa, le nkqubo iphindiwe.

I minimum and lobushushu eliphezulu olubekwe yi resistors _R-4 kunye R _5. umbundu Ukutshintshela siyahlengahlengiswa emva kokufakwa woluvo _R-9. ise yayo phakathi phakathi jiko heater. Imveliso amandla, ezingaqhutywa ngumbutho relay thermal, kuxhomekeke ixabiso ukuxhathisa _R-7.

iiterminal isivamvo ezayo ivaliwe tube shrinkable, yatywinwa tie cable okanye ngcina umaleko. Iziphelo kuyacetyiswa ukuba ngokufanelekileyo kwisingxobo nobhedu sifunxe epoxy resin. Top iithayile floor camera.

Indlela ukudibanisa thermostat ukuya imbawula, inokubonwa mzobo, nto leyo omelwa umzimba iimodeli ezininzi. Kananjalo kufuneka zifumaneka inkcazo kwefowuni.

thermostat lezoshishino le isifudumezi nga kukhethwa ndidi zilandelayo:

• electromechanical - ngencwadana usethe switch;
• yedijithali - ulawulo olwenziwa amaqhosha oluvo okanye ephathekayo, kwaye ulwazi oluyimfuneko (amaqondo obushushu yangoku kunye nezicwangciso) siboniswe kwidispleyi;
• yobuchwepheshe - isifudumezi isicwangciso enkqubo ixesha kwangaphambili, kwaye ilawulwa computer.

isiphelo

Kukho iindlela ezininzi ukudibanisa njani relay oshushu kwizixhobo. Ngaphambili, kwafuneka ukuba baqokelele ngezandla zabo. Ke kaloku, kule kwimarike, ungakhetha thermostat, ogama sikimu ngeyona ofana isifudumezi (boilers zombane, kumgangatho efudumeleyo kunye nabanye.). Kubalulekile ukunika usebenzo kuyimfuneko, ukuthembeka kunye nokhuseleko lomsebenzi.