Integrated seawater desalination device

Abstract

The invention discloses an integrated seawater desalination device, belonging to the field of seawater desalination treatment. The integrated device comprises a seawater storage tank, a seawater inlet pump, a security filter, an ultrafiltration membrane assembly, a backwashing pump, an intermediate water tank, an intermediate water pump, a concentrated water storage tank, a fresh water storage tank, a polar water storage tank, a concentrated water circulation pump, a fresh water circulation pump, a polar water circulation pump, an electrically-driven membrane stack, a rectifier, a high-pressure pump, a reverse osmosis unit, a metering pump, a cleaning pump, a cleaning tank, a drinking water tank, a drinking water faucet, etc. According to the invention, seawater passes through an ultrafiltration unit, so suspended matters, algae and some bacteria in the seawater can be effectively intercepted; effluent of the ultrafiltration unit enters an electrically-driven membrane system via the intermediate water tank; output fresh water passes through the reverse osmosis membrane under the action of the high-pressure pump, and then the standards of drinking water are achieved; thus, the purpose of the seawater desalination is achieved. The device provided by the invention is integrated seawater desalination equipment, and has the characteristics of a high desalination rate, large water yield, low operation cost, highly-efficient integration and automation, etc.

Description

technical field [0001] The invention belongs to the field of seawater desalination treatment, and in particular relates to an integrated device for seawater desalination. Background technique [0002] Water is an irreplaceable and precious natural resource on the earth. It is an indispensable basic material for human survival and production. It is also an important strategic resource. The sustainable use of water resources is a major strategic issue related to economic and social development. . The scarcity of water resources is increasingly affecting the global economic development and ecological environment, and even leads to conflicts between countries and regions. [0003] The per capita amount of fresh water resources in my country is small, and the spatial and geographical distribution is uneven. In recent years, the shortage and pollution of fresh water resources have become an important factor restricting the sustainable development of the economy. Vigorously devel...

AI Technical Summary

Problems solved by technology

The reverse osmosis system has high requirements on the COD, SDI, residual chlorine and LSI of the influent water. If the traditional distillation technology is used for treatment, a large amount of steam will be consumed, and the equipment is complicated and the cost is high.

Images