Deep sea fresh water lifting and conveying system with power type separating heat pipe

Abstract

The invention discloses a deep sea fresh water lifting and conveying system with a power type separating heat pipe. The deep sea fresh water lifting and conveying system comprises a deep sea floating platform, the power type separating heat pipe, a fresh water chamber, a phase change chamber and a fresh water lifting device, wherein the power type separating heat pipe comprises an evaporator, a condenser, a liquid storage tank, a heat pipe working medium pump, a heat pipe working medium liquid pipeline, a heat pipe working medium steam pipeline and a gas-liquid separator; the evaporator is arranged in surface-layer sea water, and the condenser is arranged in deep sea; the fresh water chamber and the phase change chamber are both arranged in the deep sea, share one cavity and are separated by a piston inside the cavity; and the phase change chamber is filled with a mixed working medium consisting of CO2 and ethane. The power type separating heat pipe is adopted to transfer heat of the surface-layer sea water to the phase change chamber in the deep sea efficiently, the mixed working medium is swelled to provide power to the fresh water lifting device, and fresh water is lifted and conveyed to the deep sea floating platform from a deep sea fresh water storage tank. In the invention, the heat of the surface-layer sea water is sufficiently utilized, so that the input of water pump power can be reduced, and the lifting and conveying of deep sea fresh water can be achieved.

Description

technical field [0001] The invention belongs to the technical field of seawater desalination, and more specifically, the invention relates to a deep-sea freshwater lifting and conveying system using a power-type separated heat pipe. Background technique [0002] The current shortage of fresh water resources has become a global problem, and seawater desalination is regarded as the most promising method. The main methods of seawater desalination are distillation and reverse osmosis; in reverse osmosis, the traditional method is to use a high-pressure pump to apply pressure to the side of the concentrated seawater, so that the solvent water is transported to the fresh water through a semi-permeable membrane, and the salt and other components Then stay in the thick sea water for testing, so as to make fresh water. With the development and progress of membrane technology, the cost of seawater desalination is reduced, and the application of membrane seawater desalination technolo...

AI Technical Summary

Problems solved by technology

If the seawater temperature difference can be used to provide power for freshwater lifting and transportation, the traditional gravity-separated heat pipe cannot transfer the heat of the surface seawater to the deep sea, which limits the separation heat pipe technology

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