Quvur uglerod tolasini isitish simi sifatida ishlatadigan va vakuum muhitida elektr bilan isitiladigan qarshilik isitish elementidir. Oddiy metall sim, halogen va boshqa an'anaviy elektr isitish quvurlaridan farqli o'laroq, u elektr nurlanishining yo'qligi, kislota va gidroksidi qarshilik (hidroftorik kislotadan tashqari), uzoq xizmat muddati, yuqori elektrotermik konversiya samaradorligi, uzoq-infraqizil kabi ajoyib ko'rsatkichlarga ega. radiatsiya, salomatlik va atrof-muhitni muhofaza qilish. Asosiy komponentlar: kvarts tashqi trubkasi, uglerod tolali isitish simi, elektrod, izolyatsion qopqoq, sim. An'anaviy sim plyus bilan solishtirganda
Issiqlik quvurlari asosan energiyani tejash va oqim oqimining yo'qligi afzalliklariga ega.
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