The Experimental Study Of Steam Ejector Under Varied Work Situation In Heat Pump Evaporation

The heat pump evaporation had become a feasible measure of energy conservation. However, the variational work situation influenced both the ejector's efficiency and the evaporation capability, even the normal production. Aiming at the variational work situation in heat evaporating, two-ejector in series adjustment was present, which provided a new way to adjust the variational situation. The experiment took water as the medium and experiments on two jet modes were carried out under the falling film vacuum evaporating. The experimental results indicated that the two ejectors in series compensation method could adjust the variational work situation due to the decrease of primary steam or secondary steam and insure the normal production. At the same time, the ejector's best work situation founded in the experiment would provide reference for ejector's design and usage. In this paper, the jet coefficient and utmost state of the strict series were analyzed and the equation of the multi-grade strict series equation was obtained.