Pressure energy recovery method based on rotary liquid switcher

Abstract

The invention relates to the technical field of water treatment and particularly relates to a pressure energy recovery method based on a rotary liquid switcher. The pressure energy recovery method based on the rotary liquid switcher is implemented through the cooperative use of a first switcher, a second switcher and a connection pipeline group for communicating the first switcher and the second switcher; the first switcher and the second switcher are of the same structure, and a rotor is rotatably assembled in a shell and switched between an initial position and a 90-degree rotation position; and the liquid type introduced into the connection pipeline group is circularly adjusted through the position switching of the rotor so as to realize continuous transfer and recovery of the liquid pressure energy. In the method, the recovery system is simple; since the rotor only needs regular rotation and switching, the energy consumption in the recovery process is low, and the control system is simple; and moreover, efficient recovery of the liquid pressure energy can be realized by multiple measures according to different requirements on the treatment capacity and the liquid mixing rate.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a pressure energy recovery method based on a rotary liquid switch. Background technique [0002] In chemical fields such as membrane seawater desalination and synthetic ammonia, there is often the phenomenon that pressure reducing valves are used to reduce the pressure of high-pressure liquids to allow the discharge pressure to be discharged directly. These throttling and decompression processes do not make reasonable use of the pressure energy of the discharged liquids. Huge waste is a typical extensive production method. In the fields of reverse osmosis seawater desalination and municipal sewage treatment, it is often the case that the pressure of the high-pressure liquid is reduced to allow the discharge pressure to be discharged directly through the pressure reducing valve. This throttling process does not effectively use the pressure energy of the high-pressure liqui...

AI Technical Summary

Problems solved by technology

However, the existing recovery methods have too high requirements on the corresponding recovery devices, and there are problems such as complex systems, high initial investment, high noise, complex control systems, and low reliability.

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