我厂今年开始转产30型机动喷雾机。在台架试验中,发现原定的进水阀组进水间隙(见图1)并不是最佳进水间隙。即进水间隙1.3±0.15并不能使泵在额定转速下获得最高的容积效率和总效率。事实上,在去年的行业质量检查中,有几个厂生产的泵的容积效率都没有达到部标的96%。为此,我们做了试验,以验证最佳进水间隙。 I plant this year began the conversion of 30-type mobile sprayer. In the bench test, found the original inlet valve inlet gap (see Figure 1) is not the best water gap. The inlet clearance of 1.3 ± 0.15 does not allow the pump to achieve the highest volumetric efficiency and overall efficiency at rated speed. In fact, in last year’s industrial quality inspection, the volumetric efficiency of pumps produced by several factories did not reach 96% of the target standard. To this end, we did a trial to verify the best water clearance.