Ray-shape-imitating deep sea small-medium-sized seawater desalination device

Abstract

The invention relates to a ray-shape-imitating deep sea small-medium-sized seawater desalination device. The device has left and right fin pretreatment filtering sheet boxes which are respectively arranged on the left and right sides of an imitate-ray body through left and right elastic swing units, such that left and right resonance systems are formed. The imitate-ray body has five parts. An ultrasonic scale cleaner is arranged at the head of the imitate-ray body. A reverse osmosis semipermeable membrane assembly cylinder, a pressurizing pump and a water storage tank are sequentially arranged at the middle part. A sterilizer is arranged on the tail part of the imitate-ray body. At a 30m-deep seabed, under seawater pressure, seawater enters the left and right fin pretreatment filtering sheet boxes; after pretreatment filtering, the seawater enters the reverse osmosis semipermeable membrane assembly cylinder through connection hose pipes; reverse osmosis is carried out in the reverse osmosis semipermeable membrane assembly cylinder, and freshwater is output. Resonance is provided with the left and right resonance systems, such that dirt such as seaweed on the left and right fin pretreatment filtering sheet boxes are shaken off, and the reverse osmosis efficiency is improved. With the ultrasonic scale cleaner, dirt on pretreatment filtering sheets and a reverse osmosis membrane is removed.

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 small and medium-sized seawater desalinator in the shape of a ray-like deep sea: in the pretreatment component A resonance system and an ultrasonic descaling device are added to the reverse osmosis semi-permeable membrane module to carry out resonance and ultrasonic self-cleaning of dirt, and use the pressure of deep-sea seawater to perform reverse osmosis desalination, which realizes the miniaturization and flexibility of seawater desalination. The water supply of seawater islands and seawater facilities has strong applicability, convenient life and energy saving

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