Condensation heat exchanger with U-shaped gas-liquid separation structure

Abstract

The invention relates to a condensation heat exchanger with a U-shaped gas-liquid separation structure. The condensation heat exchanger with the U-shaped gas-liquid separation structure comprises a steam inlet pipe, a condenser header, a pipeline heat exchange unit, the U-shaped gas-liquid separation structure and a condensing liquid outlet pipe; the condenser header comprises at least four headers which are divided into two groups, the two groups of headers are located on the left side and the right side of the condensation heat exchanger correspondingly; and the number of one group of headers is equal to that of the other group of headers, or the headers in one group are one less than the headers in the other group, and the headers in each group are arranged up and down. Through a partition board and the U-shaped gas-liquid separation structure, the pipeline heat exchange unit is divided into a plurality of heat exchange pipe passes; and through a liquid separation structure, condensation liquid formed in each pipe pass is separated out, the number of heat exchange pipes of each pipe pass is reduced in a stepped mode, the effect that the steam flow speed of each pipe pass is basically uniform is guaranteed, the heat exchange area is reasonably utilized, and the whole heat exchange effect of a condenser is improved effectively.

Description

technical field [0001] The invention relates to the technical field of heat exchangers, in particular to a condensation heat exchanger with a U-shaped gas-liquid separation structure. Background technique [0002] Condensing heat exchanger is a kind of heat exchanger accompanied by steam condensation process. It is an important equipment in refrigeration system, heat pump, power generation and chemical industry. With the rapid economic growth, energy consumption continues to increase. The optimization of the condenser can be effective Save equipment energy consumption. [0003] Compared with single-phase fluid heat transfer, phase change heat transfer has a higher heat transfer coefficient. For condensation heat transfer, it can be divided into bead-like condensation and film-like condensation. In current engineering applications, reasonable bead-like condensation cannot be formed. By adopting a new heat exchange tube structure, the fluid flow state and distribution can be ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned problems in the prior art that the heat exchange is deteriorated due to the thickening of the condensed liquid film, the present invention provides a condensation heat exchanger with a U-shaped gas-liquid separation structure, which aims to pass the tube (trough) The condensate in the channel is separated from the heat exchange surface in time, the dryness of the steam in the downstream pipe (tank) channel is improved, and the heat exchange area is effectively used, thereby improving the heat exchange performance of the condenser

Images