The effect of different forms of strainer on reducing water loss during liquid vacuum cooling process was studied. Using cylindrical containers and keeping the liquid height at a fixed value in the experiments

the situation of the water lose was studied by changing the position of the flaky strainer. The influence for water loss of the columnar and comprehensive-shaped strainers which can resist bubbles from the sidewall was also studied. To compare the water loss effectively

the concepts of overpressure degree

actual water lose rate and water lose efficiency were put forward. The experimental results show that when flaky strainer is located at the liquid surface at the end of the losing water process

the effect of decreasing water loss is the best

and the columnar and comprehensive-shaped strainers can further reduce the water loss compared with the flaky strainer.