Solar energy-based combined cycle energy multi-level utilization device

Abstract

The invention discloses a combined cycle multi-level utilization device, which is a multi-level energy source utilization device including solar heat utilization. The device comprises a solar heat collecting and steam generating device (1), a gas turbine combined solar application device (2), a heat energy multi-level utilization device (3), a cycle auxiliary device (4), a first valve (5-1), a second valve (5-2), a third valve (5-3), a fourth valve (5-4), a cycle pipeline (6) and a mixing box (7). In the device, due to the adoption of the mode of combining a gas turbine and solar energy, the safe and stable operation of a heat utilization device is ensured. The design of the device aims at various weather situations, can meet the requirement on heat utilization at all levels, and ensures suitable channels for water steam cycle. The design of the device can realize the heat utilization at four levels at the same time, can also realize any one or more types of heat utilization, and improves the heat utilization efficiency of a system.

Description

technical field [0001] The invention relates to an energy comprehensive utilization device, in particular to a multi-stage energy utilization device including solar heat utilization, and belongs to the technical field of energy utilization. Background technique [0002] As a clean, non-polluting renewable energy source, solar energy is considered an important part of the world's energy strategy for its development and utilization. Solar thermal utilization is the most important way in solar energy utilization. Its utilization forms are diverse. According to the temperature reached by the medium, it can be divided into low, medium and high temperature utilization, solar water heater, solar heating, solar refrigeration and air conditioning, solar sea water Desalination, solar drying, solar power generation, etc. [0003] Solar thermal power generation is a method to replace conventional energy sources, and it is one of the focuses of scientists and governments in various coun...

AI Technical Summary

Problems solved by technology

There are three main methods of solar thermal power generation: tower type, trough type, and dish type. Among them, the trough type solar thermal power generation is a kind with a relatively high level of commercialization and relatively mature technology. The heat collection efficiency can reach more than 60%, but the power generation efficiency is generally in the About 20%, a large amount of light-to-heat conversion energy has not been applied, so the cost is high and the promotion is difficult

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