Polyhedral spiral channel heat exchanger for liquid refrigeration

Abstract

The invention discloses a polyhedral spiral channel heat exchanger for liquid refrigeration. The problems that a heat exchanger in the prior art is of a plate-type structure, large in size, small in heat energy exchange density and low in efficiency in the aspect of high-power refrigeration are solved. The polyhedral spiral channel heat exchanger for liquid refrigeration comprises a polyhedral cold block, a mandrel, connecting flanges and semiconductor chilling plates, wherein the polyhedral cold block is a prism with a polygonal section; an inner hole is formed in the axial direction of the center of the prism; a spiral groove for liquid to be refrigerated to circulate is formed in the wall of the inner hole; the connecting flanges are fixedly connected with two ends of the polyhedral cold block; the semiconductor chilling plates are installed on the side faces of the polyhedral cold block; the diameter of the mandrel is matched with the inner hole; and the mandrel is inserted into the inner hole to form a sealed spiral channel with the spiral groove. The polyhedral cold block is refrigerated together from all positions, so that the energy exchange density is improved, the size of the heat exchanger is reduced, and refrigeration is more uniform. Through the spiral channel, the flowing time of liquid is prolonged, and the heat exchange efficiency is improved.

Description

technical field [0001] The invention relates to the field of semiconductor refrigeration, in particular to a heat exchanger for liquid refrigeration with a polyhedral spiral channel. Background technique [0002] In recent years, with the rapid development of science and technology and the improvement of people's living standards, more accurate and faster temperature control has been proposed in various production and living fields such as medical beauty, biotechnology, laboratory equipment, communications, and daily small household appliances. , Smaller, higher energy exchange density and other requirements. [0003] The semiconductor refrigerator has the advantages of small size, light weight, no mechanical transmission part, no noise during operation, no liquid or gaseous working medium, so it does not pollute the environment, and the refrigeration parameters are not affected by the direction of space and gravity. By adjusting the size of the working current, the cooling...

AI Technical Summary

Problems solved by technology

[0005] The invention mainly solves the problem that the heat exchanger in the prior art adopts a plate structure, the heat exchanger has a large volume, the heat exchange density is small, and the efficiency is low in high-power refrigeration; it provides a heat exchanger for liquid refrigeration with a polyhedral spiral channel, a polyhedron Internally process the spiral channel, by disposing semi-conductor cooling sheets on each side of the polyhedron, multiple groups of cooling sheets can cool a cooling body at the same time, thereby increasing the energy exchange density and reducing the volume of the heat exchanger. The spiral channel extends the flow of liquid Time, improve heat exchange efficiency

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