Gasification circulation thermal power system of mild-hypothermia thermal source

Abstract

The invention discloses a gasification circulation thermal power system of a mild-hypothermia thermal source. The system comprises a high-temperature thermal source (1), a power machine (2) and a condensate cooler (3). A working medium outlet of the high-temperature thermal source (1) is connected with a working medium inlet of the power machine (2); the working medium outlet of the power machine (2) is connected with the working medium inlet of the condensate cooler (3); the working medium outlet of the condensate cooler (3) is connected with the heated working medium inlet of the mild-hypothermia thermal source (4) directly or by a liquid phase working medium pressurizing pump (5); and the heated working medium outlet of the mild-hypothermia thermal source (4) is connected with the working medium inlet of the high-temperature thermal source (1) by a gas phase working medium returning and pressurizing pump (6). The system can make the most of heat energy of a low-quality thermal source, thus improving thermal efficiency of the whole thermal circulation system.

Description

technical field [0001] The present invention relates to thermodynamic systems. Background technique [0002] At present, except for gas turbines, most thermal power systems use water as the working fluid. The efficiency of the thermal power system using water as the working medium is low, and the fundamental reason is that the latent heat of vaporization of water is huge. In the current thermal power system using water as the working medium, the gasification process of liquid water is completed in a high-temperature heat source, so a large amount of high-quality heat energy must be absorbed from the high-temperature heat source, and most of the absorbed latent heat of vaporization is discharged Given a low-temperature heat source, it does not participate in external work, which seriously affects the cycle efficiency of the system. In order to improve the efficiency of this type of circulation system, it is necessary to make the working fluid enter the high-temperature heat...

AI Technical Summary

Problems solved by technology

In the current thermal power system using water as the working medium, the gasification process of liquid water is completed in a high-temperature heat source, so a large amount of high-quality heat energy must be absorbed from the high-temperature heat source, and most of the absorbed latent heat of vaporization is discharged Given a low-temperature heat source, it does not participate in external work, which seriously affects the cycle efficiency of the system

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