Temperature difference energy power generation and comprehensive utilization system

Abstract

The invention discloses an ocean temperature difference energy power generation and comprehensive utilization system which comprises a warm seawater pump, a cold seawater pump and a solar pond. The power generation power circulating device comprises a power generation evaporator, a vapor-liquid separator, a first-stage turbine, a second-stage turbine, a power generator, an ejector, a condenser for power generation, a working medium pump, a low-temperature heat regenerator and a high-temperature heat regenerator. The absorption refrigeration device comprises a refrigerant loop and an absorbent loop; the flash evaporation type seawater desalination device comprises a main loop and a pressure stabilizing loop, and the seawater preheater for desalination is placed in the solar pond to preheat a flash evaporator to feed water; a planting area; a flow channel for realizing heat exchange between the soil and the three paths of mixed cold drained water and realizing temperature regulation is arranged in the soil of the planting area; marine ranching; a pipe network for regulating and controlling the temperature of the marine ranch is arranged in the marine ranch; the arrangement of the comprehensive utilization system is simplified, the utilization rate of the cold seawater is improved, and the power consumption of the cold seawater pump is reduced.

Description

technical field [0001] The invention relates to an island and reef energy and resource supply system, in particular to a power generation and comprehensive utilization system based on ocean temperature difference energy. Background technique [0002] Compared with the terrestrial environment, the ecosystem of islands and reefs is simple and the energy reserves are scarce. Therefore, using limited resources in a limited space to produce electricity, fresh water, refrigeration, crops and seafood development necessary for life is the first step in the development of islands and reefs. It is also the most challenging step. [0003] Renewable energy sources that can be directly utilized on islands and reefs include solar energy, wind energy, and ocean temperature difference energy. Solar energy and wind energy, as intermittent and unstable energy sources, cannot provide stable energy supply. Conversion, the technical difficulty is relatively high and the equipment occupies a lar...

AI Technical Summary

Problems solved by technology

However, for warm seawater around 30°C, the flash evaporation rate is small and the energy consumption of the necessary vacuum pumps and brine pumps is high, so it is necessary to improve the flash desalination device

[0006] Although the absorption refrigeration device is suitable for refrigeration driven by ocean temperature difference energy, the temperature of warm sea water is low and the temperature difference between warm and cold sea water is small, so the absorption rate of the absorber of the absorption refrigeration device driven by ocean temperature difference energy is low and the discharge of the generator is low. The gas range is small. When the system deflate range is less than 0, the absorption refrigeration cycle cannot obtain a lower temperature or even realize

[0007] In addition, the high-temperature and high-humidity climate characteristics of tropical islands and reefs and the characteristics of high-temperature and high-salt waters pose great challenges to the development of island and reef agriculture and aquaculture on islands and reefs. Higher soil temperatures will damage the root system of crops and cause crops Slow growth or death, higher water temperature will reduce the dissolved oxygen in seawater, which is not conducive to the breeding of temperature-changing animals such as fish and shrimp

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