Horizontal Compact Shell & Tube Condenser

Abstract

The invention relates to a horizontal compact shell-and-tube condenser which comprises a cylinder, a left end cover, a right end cover and heat exchange tubes. The cylinder is provided with a refrigerant inlet and a refrigerant outlet, the left end cover and the right end cover are in sealing connection with the two end faces of the cylinder through tube plates respectively, the right end cover is provided with a cooling liquid inlet and a cooling liquid outlet, the inner side of the left end cover and the inner side of the right end cover are respectively provided with a plurality of baffle plates, the left end cover and the right end cover are divided into a plurality of independent sealing cavities through the baffle plates and the tube plates, the heat exchange tubes are connected between the left end cover and the right end cover, the two ends of each heat exchange tube stretch into the corresponding cavities so that multiple tube passes which are connected in sequence can be formed, secondary heat exchange tubes connected with the heat exchange tubes in parallel are arranged at the bottom of the inner side of the cylinder, and inlets and outlets of the secondary heat exchange tubes stretch out of the cylinder. The condenser achieves secondary heat exchange, is good in heat exchange effect and compact in structure and saves space.

Description

technical field [0001] The invention relates to the field of condensers for freon refrigeration systems, in particular to a horizontal compact shell-and-tube condenser. Background technique [0002] The shell and tube heat exchanger is composed of shell, heat transfer tube bundle, tube sheet, baffle plate and tube box and other components. The shell is mostly cylindrical, with a tube bundle inside, and the two ends of the tube bundle are fixed on the tube sheet. There are two kinds of hot and cold fluids for heat exchange. One flows in the tube, called the tube-side fluid; the other is outside the tube. flow, known as the shell-side fluid. In order to improve the heat transfer partial coefficient of the fluid outside the tube, several baffles are usually installed in the shell to increase the fluid velocity on the shell side, forcing the fluid to pass through the tube bundle multiple times according to the specified distance, and enhance the degree of fluid turbulence. The...

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Problems solved by technology

The limitations of this technical solution are: (1) The tube plate adopts a flat plate type, which has space restrictions on the arrangement of the tube bodies, the layout of the tube body rows is limited, and the gap between the tube bodies is large, which wastes space and shell materials; (2) The tube body is a bare tube, the heat transfer area is small, and the heat transfer effect is not good; (3) The refrigerant only completes one heat transfer of three tube passes in the condenser, and the heat transfer effect is limited

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