Three-handle-type Cleudea botanensis-like deep sea small and medium-sized sea water desalter

Abstract

The invention relates to a three-handle-type Cleudea botanensis-like deep sea small and medium-sized sea water desalter. The desalter is provided with three reverse osmosis unit handles. The structure of the desalter is as follows: the desalter is provided with a pretreatment filtering flat-shaped box, and the pretreatment filtering flat-shaped box is connected onto a reverse osmosis semi-permeable membrane assembly ball body through an upper connecting pipe, and the reverse osmosis semi-permeable membrane assembly ball body is connected onto a universal pipe joint through a lower connecting pipe so as to form a reverse osmosis unit handle; a bottom box is fixed on the seafloor with the depth of 30 meters, sea water enters the pretreatment filtering flat-shaped box under the pressure effect of sea water, then reverse osmosis is carried out through the reverse osmosis semi-permeable membrane assembly ball body to output fresh water through pretreatment, and then the refresh water is output after the fresh water passes through a pressure pump, a water storage tank and a sterilizer; a resonator system is formed by three reverse osmosis unit handles, three upper springs and three lower springs, and resonance is carried out under the surge effect of the sea water so as to shake down the dirt such as seaweed on the reverse osmosis unit handles; and moreover, the reverse osmosis efficiency is improved, and the dirt on a pretreatment mesh and the reverse osmosis mebance are removed by an ultrasonic cleaner.

Description

[0001] Technical field: It belongs to the technical field of ocean development and seawater desalination. Background technique: [0002] The development and utilization of seawater desalination are hot spots in recent years, and it is one of the green water sources. [0003] The seawater desalinator converts seawater into fresh water and merges it into domestic water, which is ecological and environmentally friendly. [0004] Seawater desalination methods mainly include: distillation, electrodialysis and reverse osmosis, among which: distillation is mainly used in large-scale seawater desalination and places with abundant energy; electrodialysis is to use ion exchange membranes under the action of an electric field to separate Anion and cation, so as to reduce the salt concentration in the fresh water chamber and obtain fresh water as a membrane separation technology, but there are shortcomings such as strict water quality requirements and the need for pretreatment of raw wate...

AI Technical Summary

Problems solved by technology

[0004] Seawater desalination methods mainly include: distillation, electrodialysis and reverse osmosis, among which: distillation is mainly used in large-scale seawater desalination and places with abundant energy; electrodialysis is to use ion exchange membranes under the action of an electric field to separate Anion and cation, so as to reduce the salt concentration in the fresh water chamber and obtain fresh water as a membrane separation technology, but there are shortcomings such as strict water quality requirements and the need for pretreatment of raw water, and poor adaptability; reverse osmosis method, using reverse osmosis half The permeable membrane desalination seawater has a high desalination rate, so it is widely used in seawater desalination, but there are: sediment, particles, bacteria, algae and other microorganisms in the seawater, which are easy to stick to the filter screen and reverse osmosis semi-permeable membrane. Frequent cleaning requires a high-pressure booster pump to pressurize to work, which has poor adaptability and is not suitable for small and medium-sized seawater desalination; for this reason, this patent proposes a method, a three-handle type deep-sea small and medium-sized seawater desalination Device: A resonance system and an ultrasonic descaling device are added to the pretreatment module and the reverse osmosis semi-permeable membrane module to carry out resonance and ultrasonic self-cleaning of dirt, and use the pressure of deep seawater to perform reverse osmosis desalination, realizing the miniaturization of seawater desalination. Flexible, water supply to remote sea islands and sea facilities, strong applicability, convenient life, energy saving

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