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在自功化船舶空调系统中应该采用内装式高速电动机驱动的小冷量离心式压缩机,此类压缩机已由敖德萨制冷工学院设计成功,它表示在图1上。其通流部份的主要特点是采用结构简单的强后弯叶片的半开式叶轮和无扩压的蜗壳。叶轮的基本几何尺寸:外径=140毫米,叶片的进口处宽度b_1=11.2毫米和出口处宽度b_2=9.3毫米,叶片的进口角β_(л1)=26°,出口角β_(л2)=15°,叶片数Z=8,其厚度δ=2毫米。在径向面内叶片中线形状由两个半径的圆弧形成。叶片的子午面由直线形成。
In self-service ship air-conditioning system should be used built-in high-speed motor-driven small capacity centrifugal compressor, such compressor has been designed by the Odessa Refrigeration Institute, which is shown in Figure 1. The main features of the flow through its part is the use of a simple structure of the curved blade after the semi-open impeller and no diffuser volute. The basic geometry of the impeller: outside diameter = 140 mm, the width of the inlet of the blade b_1 = 11.2 mm and the width of the outlet b_2 = 9.3 mm, the inlet angle β_ (л1) = 26 ° and the outlet angle β_ (л2) = 15 °, the number of leaves Z = 8, the thickness δ = 2 mm. The midline shape of the blade in the radial plane is formed by a circular arc of two radii. The meridian of the blade is formed by a straight line.