High gravity reverse osmosis solution separation device and method

Abstract

The invention discloses a high-gravity reverse osmosis solution separation device; it comprises a rotating shaft (2), on which a high-pressure pump (8), a reverse osmosis device (7), and a solution pump (6) are arranged; the The liquid inlet of the solution pump (6) is provided with a dilute solution inlet (3) through the pipeline A; the liquid outlet of the solution pump (6) is connected to the liquid inlet of the reverse osmosis device (7); the water outlet of the reverse osmosis device (7) is connected to the high pressure The liquid inlet of the pump (8); the liquid outlet of the high-pressure pump (8) is provided with a pure water outlet (5) through a pipeline C; the liquid outlet of the reverse osmosis device (7) is provided with a concentrated solution outlet (4) through a pipeline B.

Description

technical field [0001] The invention relates to the technical field of power equipment, in particular to a high-gravity reverse osmosis solution separation device and method. Background technique [0002] In the fields of air conditioning, power, and chemical technology, the separation of water in solution is often involved. For example, in seawater desalination projects, water must be separated from seawater. This separation process can be completed by reverse osmosis. The principle is to use high pressure to increase The chemical potential of water in the solution allows it to transfer to the other side of the membrane through the permeable membrane, thereby separating the solution. [0003] In reverse osmosis, the dilute solution is generally pressurized to a high pressure of Mpa level. After the water in the dilute solution permeates out through the osmotic membrane, the remaining concentrated solution still has a large liquid pressure energy, which can be recovered by a...

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Problems solved by technology

[0003] In reverse osmosis, the dilute solution is generally pressurized to a high pressure of Mpa level. After the water in the dilute solution permeates out through the osmotic membrane, the remaining concentrated solution still has a large liquid pressure energy, which can be recovered by a liquid energy recovery device. Recover this part of energy, improve system efficiency, and increase the technical economy of the system, but the liquid energy recovery device is expensive. For example, in seawater desalination projects, the initial investment cost of the energy recovery device accounts for 10-15% of the total investment, which makes Liquid energy recoverers are not widely used in reverse osmosis solution separation

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