Shell-and-tube condenser

Abstract

The invention provides a shell-and-tube condenser which comprises a shell, a first tube plate, a second tube plate, multiple layers of heat exchanging tubes, and a plurality of liquid collecting plates, wherein the axis of the shell extends horizontally; a gas inlet for feeding refrigerant gas and a liquid outlet for discharging refrigerant liquid; the first tube plate and the second tube plate cover two axial ends of the shell in a sealing manner; cooling water circulates in the multiple layers of heat exchanging tubes; the multiple layers of heat exchanging tubes are arranged in the shell inthe axial direction; the liquid collecting plates divide the interior of the shell into a plurality of heat exchanging areas arranged vertically; the multiple layers of heat exchanging tubes are distributed in the heat exchanging areas; each of the liquid collecting plates extends in the axial direction of the shell; the first end of each of the liquid collecting plates in the length direction isconnected with the first tube plate; and the second end of each of the liquid collecting plates in the length direction and the second tube plate are arranged at an interval, so that the refrigerantliquid on the liquid collecting plate flows out of the second end. The shell-and-tube condenser can lower the adverse effect of a liquid film on the heat exchanging efficiency of the heat exchanging pipes.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a shell and tube condenser. Background technique [0002] Shell and tube condensers are widely used in air conditioning chillers. In the current shell-and-tube condenser, multi-layer heat exchange tubes are usually arranged in the shell, the cooling water goes through the tube side, and the refrigerant goes through the shell side, and the two exchange heat through the tube wall of the heat exchange tube. [0003] During the heat exchange process, the refrigerant gas will condense on the outer wall of the heat exchange tube to form a liquid film, and the existence of the liquid film will reduce the heat exchange efficiency of the heat exchange tube. Moreover, since the liquid film will turn into droplets and drip down onto the heat exchange tubes in the lower layer, the heat exchange tubes will become thicker layer by layer from the upper layer to the lower layer, and th...

AI Technical Summary

Problems solved by technology

[0003] During the heat exchange process, the refrigerant gas will condense on the outer wall of the heat exchange tube to form a liquid film, and the existence of the liquid film will reduce the heat exchange efficiency of the heat exchange tube

Moreover, because the liquid film will turn into droplets and drop down to the heat exchange tubes in the lower layer, the heat exchange tubes will become thicker layer by layer from the upper layer to the lower layer, and the heat transfer efficiency will seriously drop

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