Temperature whakakā: te kaupapa, te parau tumu o te mahi, whakarite

Parenga o taputapu hiko i kawenga i te taikaha tānga waiariki whakarato. Te kore reira, ki nga waea overheat, hua i roto i te kore taimi halá, o te mātao.

parau tumu o te mahi

mahi tānga waiariki ko ki te momotu i te ara iahiko ina nui te nāianei e rere i roto i te reira i te lau peé. Kei te taputapu o te termopodogrevatelya roto i haere nāianei hiko, me te rihi o te bimetal, hauā nei ki runga ki whakawera a ka uaki i te mekameka hoapā. Ko te teitei te nāianei, te tere te mahi.

I muri tuwhera te thermocouple ara iahiko mātao me hoki ki tona āhua taketake.

Ngā momo o kaupapa o te fuser

tānga Thermal mahi i roto i kaupapa e rua:

• E katia hoki kaha hoapā whakawhitinga;
• tautuhi anō kaupapa te takitahi.

pā ana te whakatinanatanga tuatahi ki paruru waiariki tānga (hiko contactors, kupu taka iahiko et al.). whakamahia te tuarua i roto i te pāmahana whakaritea taonga pūnaha (he pouaka, he rino, wera papa et al.).

Ko te paraharaha bimetallic i te deflection mahi i runga i te rōpū whakapā, e oroko te ara iahiko hiko. No te mea o te tere urupare iti o te pūrere e kore tinei te pewa ki te pānga e hiahiatia ana. I roto i te pūrere tānga o tenei ra e whakamahia, te whakanui ake i te tere ara iahiko tuwhera.

Ngā momo o tānga waiariki

E tīpakohia tānga waiariki i rawa i te reira i te 20-30% te kawenga nekeneke iti. Ki te taua hīrau kikī puta i muri i te 20 min. āta sags te paraharaha bimetallic. I roto i tenei whakaaro, mahi ai ki runga ki nga titi i roto i te pūrere tere (whakapā rutua). Ko nga momo e whai ake nei o ngāwhā tānga.

1. RTP - tiaki toru motors wāhanga ki thermoelements i runga i ngā ki runga ki te 600 He me te whatunga ngaohiko DC ki runga ki te 150 A. hana te paraharaha bimetal e te whakamahana me te therethrough rerengia nāianei. faahouhia nāianei e tīni ā-ringatia e te deformation tuatahi o te pereti. Tautuhi mā te pēhi i te pātene, engari i reira he he putanga ki te tautuhianō-whaiaro.
2. RTL - mo te tiaki o motors arataki e toru wāhanga i kikī auroa, wāhanga unbalance i te jamming rotor, i roto i te tīmatanga nui ranei. I roto i taua mau huru, whakahaere huarahi hiko aranga ki, papua, pā, me ētahi atu mihini. Tānga whakaurua i roto i te timata i, a ka meinga nga whakaaro takitahi.
3. TPT - ngā roto i te kete o te tiaki o motors arataki e toru wāhanga i kikī auroa, wāhanga unbalance, me ētahi atu kia kia tāmau ratou i roto i te .. actuators autō i AC me DC iahiko.

Mana me te whirihoranga

kia wā hoatu te uara tiki te tānga electrothermal. Tuatahi te tirohanga, me te whakarite o ratou pāmahana roto tomu'a fakapapau'i. A, no te ārohi i te huru o te hoapā, mau api bimetal, huānga putanga me tikanga.

Tāutanga mo te wera ine mahana te whakarite hanga ki te whakanui ake whakaiti ranei, te wahi i ia wehenga o te tauine hāngai ki te whakatikatika ki te 10 ° C. Ki te whai pāmahana utu nga tānga, e hiahiatia ana kahore whakatikatika te.

hanga whakarerekētanga te ki te mahi i te hua ono-puninga i roto i ahau _nom. Ki te e whakahohe pūrere tūpuku iti i roto i te wā o 0.5-4 s, a ki te nui - i te 4 ki te 25 hēkona. Na, i te hanga i nga piki o nāianei i 1.2 ki ahau _nom. Tānga kupu e momotu hoapā 20 min.

thermostats ohie

Ka taea te hanga e hāngai ana Temperature whakawhiti i runga i iahiko hiko e e whakamahia ana ki te mau tonu i te aratau pāmahana tomu'a o te rorohiko, whare, incubator me te t. D. ki tenei truma kia whakamahia ai, te ara iahiko o e Kei roto te pūoko arā, o te ine me te tohutoro poluplecha thermistor R ₂ me parenga R _1, R _3, R _4.

A, no te nga huringa pāmahana rerekē te uara resistance R _2. whangai i te tohu hapa te i te piriti ki te tāuru o LM393 IC. Mahi i te reira i roto i te aratau comparator te wahi te kokoru 3 o te tohu tairitenga ko te whakawhitinga ohorere i kāwanatanga ona atu ki ona kaha. Tohu i te ara iahiko putanga rahi roa'tu, e transistor Q _1, a ka te tahi triggering puta. mātao te reira i te thermistor, ka huri te comparator atu te tahi. I roto i tenei ara, puta whakahaere waiariki mā rangi tautauā.

Pūoko mō te pāmahana mana o te papa whakawera

I runga i te parau tumu rite ki te whakahaere i te pūnaha o te papa whakawera.

Te ngaohiko AC 230 tono ki te pūrere tāuru me ka tahuri i roto i te supply transformerless mana ki te tamau 15 W. te i runga i paepae tautuhi te kaiwehewehe R _4, R _5, R _9. A, no te papa makariri, R ₉ thermistor resistance ko 10 ohms. I te TL431 e tango zener te tohu i runga 2.5 volts mekameka VD _3, R _6, HL _2, U _1. mahi tohu o tenei te ngōhiko HL _2. Triac VU ₁ kua tahuri ki runga ki a tukua te ngaohiko ki te whakawera papa. A, no te tae tona pāmahana te uara tomu'a, te thermistor resistance R ₉ (pūoko) heke te kia e te ngōhiko Zener i te mana uara tāuru tohu riro iti iho i te kiia 2.5 V. TL431, a mo ki a ratou optosimistor triac. Ka rite ki te hua, taupāhohea te wae whakamahana te. Ka rite ki te papa tīmata ki te whakamatao, korerotia te tukanga e.

whakaturia te iti me te pāmahana mōrahi e parenga R ₄ me R _5. whakaritea Whakawhiti paepae te i muri i te tāutanga o te pūoko R _9. Ko tōna kei roto i te waenganui i waenganui i nga coils whakamahana. Te putanga mana, e whakahaerea ana e te tānga waiariki, he ti'aturi i runga i te uara o te ātete R _7.

terminals pūoko ka ū mai katia ngongo shrinkable, ka hiri ki te here taura apa piripiri ranei. Conclusions he mea tika ki te hoatu i roto i te ringaringa parahi, me te whakakiia ki epoxy kapia. Top tāpa papa Uwhi.

Me pēhea te ki te hono i te ine mahana ki te whakamahana, e taea te kite i roto i te hoahoa, māngai nei i runga i te tinana o maha tauira. E taea hoki te kitea te reira i roto i te whakaahuatanga o te pūrere.

Ka taea te tīpakohia ine mahana Industrial mo te whakamahana i te momo e whai ake nei:

• electromechanical - ki pana tautuhi ā-;
• whakamana mana te pātene tairongo tūturu ranei, a ka whakaaturia te kōrero e tika ana (i te pāmahana me te tautuhinga o nāianei) kei runga i te whakaaturanga - mamati;
• programmable - he tautuhinga whakamahana o te hōtaka mo te wā tomu'a, a mamao whakahaeretia ana e te rorohiko.

mutunga

He maha ngā huarahi me pehea ki te hono i te tānga waiariki ki ngā pūrere. I mua, i ratou ki te kohikohi o ratou ringa ake. Na i roto i te mākete, ka taea e koe te whiriwhiri i te ine mahana, tona kaupapa, ko te optimally rite ki te whakamahana (nga kohua i hiko, papa mahana me ētahi atu.). He mea nui ki te whakarato i te taumahinga tika, tika me te haumaru i roto i te mahi.