PURPOSE: To contrive to make a uniform film when liquid drips along the outer wall of a heat transfer pipe in a heat exchanger which is a stand pipe type and a film is formed by the liquid dripping along the outer wall of a pipe, by controlling the depth of liquid in the upper part of weirs and the rate of liquid dripping along the outer wall of a heat transfer pipe in a liquid rate controlling part, and by uniformly dispersing liquid by a filmy liquid-flow forming part, regardless of the depth of liquid and the liquid rate.
CONSTITUTION: In order to branch off and deviate the flow of liquid injected from the opening 15 of a liquid rate controlling part 13, the width and the shape of a dispersing weir 17 are determined by the speed of liquid flow injected from the opening 15, that is the depth of liquid in the upper part of a liquid disperser 10. The width of a weir 17 is desirable, however, to be wider than the width of an opening 15. The thickness of the protrudent part 14 of a liquid rate controlling part 13 and that of the weir 17 of a filmy liquid-flow forming part 16 are arbitrarily selective if the thickness is strong enough not to be broken when a heat transfer pipe is oscillated. The length of a branched-off flow deviation chamber 19 is selective if the liquid dripping from the opening 15 of a liquid rate controlling part 13 can flow smoothly.
SAITOU TERUMINE
MUNESAWA JIYUNICHI
JPS4730009B1 | ||||
JP54094963B |
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