System for improving geothermal energy and solar energy integrated thermoelectric conversion efficiency

Abstract

The invention relates to a system for improving geothermal energy and solar energy integrated thermoelectric conversion efficiency. The system is characterized by comprising an evaporator, a heat regenerator, a fractional distillation condenser unit, a solar ammonia collector, a separator, a turbonator and an ammonia feeding pump. The invention aims to provide the system for improving geothermal energy and solar energy integrated thermoelectric conversion efficiency, and belongs to the technical field of geothermal energy and solar energy thermoelectric conversion device. Compared with the traditional geothermal power generation technology, the system provided by the invention adopts Karina cycle technology and utilizes medium and low temperature heat sources, the cycle efficiency of the system is higher than general Rankine cycle for 20 percent to 50 percent within the medium and low temperature range, which is considerable in energy utilization, and the operational reliability and generating efficiency are improved. The method for collecting solar heating ammonia steam by the solar ammonia collector is mature in technology, and is economical and feasible, and the solar-thermal conversion efficiency is higher than 95 percent, which can not be surpassed by other solar heat collectors.

Description

technical field [0001] The invention relates to a system for improving the comprehensive thermoelectric conversion efficiency of geothermal energy and solar energy, and belongs to the technical field of geothermal energy and solar photothermal power generation devices. Background technique [0002] World economic development has an increasing demand for energy, and at the same time, the ecological environment on which human beings depend is deteriorating. Human beings have begun to consider vigorously developing new energy sources, especially renewable clean energy sources, to replace traditional energy sources. As new energy sources, geothermal energy and solar energy have attracted more and more attention. Countries have successively formulated policies to encourage the development and utilization of geothermal energy and solar energy, and new progress has been made in technology and equipment for the development and utilization of geothermal energy and solar energy. Geot...

AI Technical Summary

Problems solved by technology

Although at present, in the design of some more sophisticated tower systems, different heliostats start to use spherical surfaces with different curvature radii to reduce the size of the sun’s focused spot on the tower, but the complexity of optical design has greatly increased and the manufacturing cost has also increased. followed by substantial growth

[0032] Second, many heliostats are built around the central tower. The establishment of the huge central tower must ensure that the heliostats cannot block the light from each other.

The disadvantage of the disc system is that it is expensive, and it is also the first in this system

At present, the initial investment cost of the dish thermal power generation system is as high as 47,000 to 64,000 yuan

Although the concentration ratio of the dish system is very high and can reach high temperatures of 2000°C, such high temperatures are not necessary or even destructive for current thermal power generation technologies.

Therefore, the receiver of the dish system is generally not placed in the focus, but is properly placed in a lower temperature zone according to the performance index requirements, so that the advantages of high concentration cannot actually be fully utilized and heat storage Difficult, hot molten salt heat storage technology is dangerous and expensive

[0045] To sum up, the existing three solar thermal power generation technologies are all high-temperature solar power generation technologies, which greatly increase the performance requirements of solar collectors, and will inevitably increase the capital investment in solar collectors. , increasing the initial investment

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