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一、问题的提出 全封闭式往复制冷压缩机的主要元件包括,自动舌簧阀、活塞、气缸、吸气阀、阀板、排气阀,见图2。标准的舌簧阀是由0.02cm厚的弹簧钢板制成。气阀是依靠气缸内活塞在上死点和下死点(BDC)运动,造成气缸内外压力差而开启的。阀板的位置是在吸气阀和排气阀之间,它有足够的厚度和刚性,能承受压缩循环期内很高的压力差而不产生变形。阀板通常是由0.35cm厚的钢板制成,其上开有吸气和排气孔,使制冷介质通过它进入气缸,随后排出气缸,从性能的观点出发一台性能良好的压缩机能输送大的气量,而只消耗很少的电能。确定
First, the problem raised All closed reciprocating refrigeration compressor’s main components include automatic reed valve, piston, cylinder, suction valve, valve plate, exhaust valve, shown in Figure 2. The standard reed valve is made of 0.02cm thick spring steel. Valve is to rely on the piston in the cylinder at the top dead center and bottom dead center (BDC) movement, resulting in pressure difference between the cylinder opening and opening. The position of the valve plate is between the suction valve and the exhaust valve. It has sufficient thickness and rigidity to withstand the high pressure differential during the compression cycle without deformation. The valve plate is usually made of 0.35cm thick steel plate with suction and exhaust holes on it to allow the refrigerant to pass through it into the cylinder and then out of the cylinder. From a performance point of view, a good compressor can deliver large Gas consumption, but consumes very little electricity. determine