Bidirectional-drive sea water desalination and power generation device by utilizing tidal energy

Abstract

The invention discloses a bidirectional-drive sea water desalination and power generation device by utilizing tidal energy. The bidirectional-drive sea water desalination and power generation device comprises a reservoir, a first water turbine, a second water turbine, a transmission box, a gearbox, a high-pressure pump, reverse osmosis membrane components, a turbine and a generator, wherein high-level seawater in the sea in the process of flowing to the reservoir in flood tide and the high-level seawater in the reservoir in the process of flowing to the sea are utilize to respectively impact the first water turbine and the second water turbine to rotate after ebb tide, the high-pressure pump is driven to work to generate high-pressure seawater through the gearbox, the high-pressure seawater is desalinated through the reverse osmosis membrane components, the high-pressure concentrated seawater discharged from the reverse osmosis membrane components impacts the turbine to rotate, the turbine drives the generator to rotate to generate electric energy, comprehensive utilization and conversion of the tidal energy are realized, the emissions in the energy utilization and conversion process are pollution-free, and the device is clean and environment-friendly, and moreover, additional power is not required to be provided in the system, the operating cost is low, the tidal energy is a renewable energy source, and the bidirectional-drive sea water desalination and power generation device has the sustainable development property, high social benefits and high application value.

Description

[0001] This application is a divisional application with a filing date of December 4, 2010 in China, application number 2010105815528, and a divisional application titled "Method and device for seawater desalination and power generation driven by tidal energy". technical field [0002] The invention relates to a seawater desalination and power generation device, in particular to a seawater desalination and power generation device driven by tidal energy. Background technique [0003] Water is an important substance for the survival of human beings and all living things. The earth has sufficient water resources. The total amount of water reaches 1.4 billion cubic kilometers. However, there are very few fresh water resources that can be used by human beings, and the reserves only account for the total amount of water in the world. 2.53% of the total, and 68.7% of the fresh water exists in the form of solid glaciers, which are difficult to exploit. The only fresh water that h...

AI Technical Summary

Problems solved by technology

A typical method of gathering ocean energy is wave energy or tidal energy, which uses tapered channels to send seawater to a certain height to form a potential difference. However, using this method to increase the height of seawater is limited, so only relying on flow The method of improving the potential energy of seawater by the channel structure is far from enough, because the pressure difference is not large, its efficiency is often relatively low, and it is not easy to use

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