Efficient thermodynamic cycle system utilizing vortex tubes

Abstract

An efficient thermodynamic cycle system utilizing vortex tubes is mainly composed of a work medium pump, a heat exchanger, an expanding machine and a vortex tube flow dividing and cooling unit. The vortex tube flow dividing and cooling unit is formed by combining the multiple vortex tubes. Liquid working media separated from the vortex tubes directly enter a working medium pump inlet. Gaseous working media enter the heat exchanger to exchange heat with low-temperature working media on the high-pressure side of the cycle system. The cooled working media enter the vortex tubes again to be subjected to flow dividing and cooling; liquid working media enter the working medium pump inlet; and gaseous working media enter the heat exchanger to exchange heat with low-temperature working media on the high-pressure side of the cycle system again. Due to flow dividing and cooling of the multi-stage vortex tubes and many times of heat exchange with the low-temperature working media, most of the working media enter the working medium pump inlet in the form of liquid, only an extremely small part of working media are not liquefied, the proportion of the working media entering the working medium pump inlet to the non-liquefied working media is proper, and it can be guaranteed that all the working media on the working medium pump inlet are liquid working media by combining the working media entering the working medium pump inlet and the non-liquefied working media. A liquid working medium pump is used for pressurizing working media, power consumption of the pump is reduced, heat in the cycle system is recycled, and thermal efficiency is high.

Description

technical field [0001] The invention relates to the fields of heat cycle utilization technology and vortex tube cooling technology, in particular to a high-efficiency thermodynamic cycle system using a vortex tube. Background technique [0002] The high-efficiency thermodynamic cycle system using the vortex tube is a thermodynamic cycle system based on the Rankine cycle. The Rankine cycle refers to an ideal cycle process using water vapor as a working medium, mainly including isentropic compression, isobaric heating, isentropic expansion, and an isobaric condensation process, and is mainly used in the power cycle of steam plants. At present, the Rankine cycle thermodynamic systems researched and developed at home and abroad include organic Rankine cycle and supercritical Rankine cycle. The organic Rankine cycle is a Rankine cycle with low-boiling point organic matter as the working medium, and the supercritical Rankine cycle is a Rankine cycle with supercritical fluid as th...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a high-efficiency thermodynamic cycle system using vortex tubes to solve the problems of heat loss in the cooling process of the working fluid in the prior art, large compression work in the compression process, and low thermal cycle efficiency. The vortex tube cooling method is adopted. No external work is consumed, high-temperature heat can be recycled, no heat is lost to the outside world, and the cooling and liquefaction of the gaseous working medium after expansion and work can be realized. The use of a liquid working medium pump reduces the compression work and improves the cycle thermal efficiency of the system.

Images