Novel reverse osmosis membrane on-line full-automatic forward and back flushing device

Abstract

The invention discloses a novel reverse osmosis membrane on-line full-automatic forward and back flushing device. The flushing device comprises a solution tank and a flushing chamber, a motor is arranged at the bottom of the solution tank, a heater is fixedly arranged above the stirring paddle propeller in the solution tank, the right side of the bottom of the solution tank is provided with a liquid supply pipe, a flushing master valve, a cleaning pump, a precise filter and a gas dissolving tank are sequentially arranged on the liquid supply pipe from left to right, the right side of the upper part of the solution tank is provided with a forward flushing concentrated water return pipe, a back flushing concentrated water return pipe is arranged on the solution tank below the forward flushing concentrated water return pipe, the right ends of the forward flushing concentrated water return pipe, the back flushing concentrated water return pipe and the liquid supply pipe are connected with the flushing chamber, and the forward flushing concentrated water return pipe, the back flushing concentrated water return pipe and the liquid supply pipe communicate with the flushing chamber through a four-way connector. The novel reverse osmosis membrane on-line full-automatic forward and back flushing device has the advantages of being reasonable in structural design, reliable in use and the like, and can be widely popularized and used.

Description

technical field [0001] The invention belongs to the technical field of water purification, and in particular relates to a novel on-line fully automatic front and back washing cleaning equipment for reverse osmosis membranes. Background technique [0002] The principle of reverse osmosis technology is to separate these substances from water based on the fact that other substances cannot pass through the semi-permeable membrane under the action of the osmotic pressure higher than the solution. The membrane pore size of the reverse osmosis membrane is very small, so it can effectively remove dissolved salts, colloids, microorganisms, organic matter, etc. in water. The system has the advantages of good water quality, low energy consumption, no pollution, simple process and easy operation. Nowadays, the world (including China) pays attention to circular economy, energy saving and emission reduction, environmental protection, etc., and has introduced a series of industrial polici...

AI Technical Summary

Problems solved by technology

[0003] Physical cleaning methods include hydraulic cleaning and mechanical cleaning. Physical cleaning can only clean slightly fouled reverse osmosis membranes or protective flushing of reverse osmosis membranes during shutdown, and cannot achieve effective cleaning effects

Chemical cleaning is usually used more often. Chemical cleaning is essentially a multiphase reaction between pollutants and cleaning agents. Some or even a part of the pollutants cannot completely solve the fouling problem of the reverse osmosis membrane

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