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The heat exchanger or steam coil is used to heat air for drying purposes with the heat energy supplied as steam.

The profiled plate fin with zigzag tubes is designed to accomplish effective and economical heat transfer between the internal medium of steam and the drying air.

The plate fin body of the heat exchanger consists of tubes of copper or copper-nickel that have been expanded mechanically against plate fins of aluminium. Each heat exchanger plate fin is in one piece, without slits or joints, to prevent dust particles and fibres from sticking to the plate body.

The casing or frame is made of hot-dip galvanized steel sheet and is provided with lifting eyes in each corner and attachments for a mesh filter. The manifold pipes of the heat exchanger are exposed inside the frame to enable the removal of fibres. The manifold pipe on the entry side (steam) is made of steel and coated with a corrosion protective paint. The manifold pipe on the exit side (condensate) is made of copper-nickel, and the condensate coupling is made of boiler steel coated with a corrosion protective paint.

熱交換器或蒸汽盤管用于加熱空氣以蒸汽形式提供熱能進行干燥。帶有鋸齒形管的異形板翅片設(shè)計用于實現(xiàn)有效且經(jīng)濟的熱傳遞蒸汽和干燥空氣的內(nèi)部介質(zhì)。熱交換器的板翅體由管子組成已膨脹的銅或銅鎳以機械方式抵靠鋁散熱片。每次加熱換熱器板翅片為一體式，無縫隙或接頭，防止灰塵顆粒和纖維粘附在板體。

外殼或框架由熱浸鍍鋅鋼制成并在每個角落配備吊耳和網(wǎng)狀過濾器的附件。熱交換器暴露在框架內(nèi)去除纖維物。入口側(cè)的歧管（蒸汽）由鋼制成并涂有防腐漆。出口側(cè)的歧管（冷凝物）由銅鎳制成，冷凝聯(lián)接器由涂有防腐涂料的鍋爐鋼制成。