Vapor-liquid two-phase flow asymmetric runner heat-transferring plate piece

Abstract

The invention relates to a vapor-liquid two-phase flow asymmetric runner heat-transferring plate piece. The heat transfer plate comprises a vapor-phase overflowing hole and a liquid-phase overflowinghole, the vapor-phase overflowing hole and the liquid-phase overflowing hole are oppositely arranged on the heat-transferring plate piece, heat transfer ripples are formed on the two sides of the heat-transferring plate piece, the area of the vapor-phase overflowing hole is larger than the area of the liquid-phase overflowing hole, and a plurality of protrusions are arranged on the heat transfer corrugations on the side surface of the heat transfer plate vapor phase medium flow. According to the heat-transferring plate piece, the flow volumes of the vapor-liquid phase media flowing on the twosides of the heat transfer plate can be matched with each other, the defects of the vapor-phase input quantity and the surplus of the liquid-phase overflowing hole is avoided, so that the overall heattransfer performance of the heat transfer plate sheet can be improved.

Description

technical field [0001] The invention belongs to the technical field of plates of plate heat exchangers, and in particular relates to a heat transfer plate of an asymmetric flow path of vapor-liquid two-phase flow. Background technique [0002] The plate heat exchanger plate is specially used in the plate heat exchanger to isolate the medium and perform heat exchange. The isolation medium flows along both sides of the heat transfer plate for heat exchange. The size of the vapor and liquid phase flow holes of the existing vapor-liquid two-phase heat transfer plate is equal to the cross-sectional size of the flow channel of the fluid on both sides (that is, the symmetrical flow channel), but the volume of the vapor phase per unit mass is larger than that of the liquid phase. However, the existing heat exchange plates with symmetrical inlets and symmetrical flow channels will lead to insufficient vapor phase input and excess liquid phase inlets and flow channels, which will affe...

AI Technical Summary

Problems solved by technology

The size of the vapor and liquid phase flow holes of the existing vapor-liquid two-phase heat transfer plate is equal to the cross-sectional size of the flow channel of the fluid on both sides (that is, the symmetrical flow channel), but the volume of the vapor phase per unit mass is larger than that of the liquid phase. Much, the existing heat exchange plates with symmetrical inlets and symmetrical flow channels will lead to insufficient vapor phase input and excess liquid phase inlets and flow channels, which will affect the overall heat transfer performance of the two-phase heat transfer plate

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