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移动式喷灌机多点作业,起动频繁,因此,广大贫下中农迫切要求喷灌机的水泵能够实现自吸,下面介绍一种利用195柴油机废气实现自吸的装置。废气自吸装置(见图1)由排气管(3、4、5)、闹阀、射流器、吸气管等组成。排气管内径1(1/2)″,其中排气管4的出口需作成45°的斜口,工作位置如图1所示:吸气管为内径7.5毫米厚1.5毫米聚氯乙烯透明软管,它的两端通过密封接头与射流器和水泵连接。整个装置通过排气管3的法兰盘与发动机排气道出口法兰盘接接(去掉原机排气管总成)。
Mobile sprinkler multi-point operation, frequent start-up, therefore, the majority of poor peasants urgently require irrigation pump to achieve self-priming, the following describes a 195 diesel engine exhaust to achieve self-priming device. Exhaust gas self-priming device (see Figure 1) by the exhaust pipe (3,4,5), valve, jet, suction tube and other components. Exhaust pipe inner diameter 1 (1/2) ", of which the exhaust pipe 4 outlet to be made 45 ° bevel, the working position shown in Figure 1: Intake 7.5 mm in diameter and 1.5 mm thick PVC transparent soft The tube is connected at both ends to the jet and water pump by means of a sealing joint which is connected to the outlet flange of the engine exhaust duct through the flange of the exhaust pipe 3 (the original exhaust pipe assembly is removed).