Multi-tube-row integrated header automatic adjusting dispensing condenser

Abstract

The invention discloses a multi-tube-row integrated header automatic adjusting dispensing condenser, comprising a first header, a second header, and heat exchange tubes. The header which is provided with an inlet pipe is provided with septums. The first header and the second header are internally provided with gas-liquid separators. The outlet tube segments of the heat exchange tubes extend into the cavity of the header, and the ends of the outlet tube segments bend downward. Or the outlet tube segments of the heat exchange tubes extend into the cavity of the header, and the outlet tube segments of the heat exchange tubes beveling downward from the diameter of the outlet tube segment and form bevel connections. Beneficial technical effects of the condenser are that heat transfer flowing performance of the condenser is improved, uniformity of working medium distribution is effectively improved, flow resistance is greatly reduced and high-efficiency heat exchange is maintained, a condensate liquid is prevented from being brought out of the headers, so as to greatly improve dispending effect of the headers on two ends, high-efficiency heat exchange flow state in tubes can be maintained on the tail of the condenser and under condition of lower area flow, and effect of enhancing heat transfer based on a dispensing condensing principle is improved.

Description

【Technical field】 [0001] The invention relates to the field of condensers, in particular to a multi-pipe-row integrated header box automatic adjustment liquid separation condenser. 【Background technique】 [0002] Existing condensers using liquid separation technology are limited to single-row heat exchange tubes, rather than multi-tube liquid-separation condensers. Existing separatory condensers all adopt a single-tube row structure, and the diameter of the heat exchange tubes is of a conventional scale, and micro-scale heat exchange tubes (micro-channels) are not considered. There are large limitations in heat exchange capacity (single tube row), large amount of liquid working fluid brought out with the gas phase working medium (conventional header and heat exchange tube end structure), and gas-liquid separator cannot reasonably separate liquid according to working conditions (opening holes Section fixed) and other issues, so that the effect of liquid separation technology...

AI Technical Summary

Problems solved by technology

Existing separatory condensers all adopt a single-tube row structure, and the diameter of the heat exchange tubes is of a conventional scale, and micro-scale heat exchange tubes (micro-channels) are not considered. There are large limitations in heat exchange capacity (single tube row), large amount of liquid working fluid brought out with the gas phase working medium (conventional header and heat exchange tube end structure), and gas-liquid separator cannot reasonably separate liquid according to working conditions (opening holes Cross-section fixed) and other issues, the effect of liquid separation technology and the application range of the condenser are greatly restricted

At present, there is no integrated header structure shared by too many tube rows in the liquid separator condenser (the so-called integrated header structure is a structure in which multiple rows of heat exchange tubes are connected in parallel into the same header to make fluids mix), and the existing header The box (the tube insertion surface is arc-shaped) is not conducive to the processing of multi-column condensers and the effect of preventing liquid from being carried out by gas is poor

In addition, due to the inhomogeneity of the heat transfer between the front and rear tube rows of the multi-column air-cooled microchannel condenser, the flow and heat transfer between the tube rows during the subsequent condensation process will deteriorate.

Images