Reverse osmosis water purification and dispensing machine structure and energy saving method therefor

Abstract

The present invention discloses a reverse osmosis water purification and dispensing machine structure and an energy saving method therefor. An inlet of a self-priming booster pump is connected to an external water source, an outlet of the self-priming booster pump is connected to an inlet of a prefiltering system, and an outlet of the prefiltering system is connected to an inlet of a reverse osmosis membrane; a water outlet end of the reverse osmosis membrane further comprises a purified water outlet and a concentrated water outlet, and purified water accesses a user for use by the purified water outlet. According to the present invention, under conditions of a designed temperature, pressure and the like, the produced purified water is good in water quality, thereby greatly improving the recovery rate of a water purification system; it is ensured that states of the waterway such as the operating pressure is maintained at conditions such as the design pressure, thereby greatly reducing the electrical energy consumption; the concentrated water formed on the surface of the reverse osmosis membrane can be discharged in time when the booster pump performs replenishment for the next time, thereby ensuring the freshness of water entering by the surface of the reverse osmosis membrane, and greatly prolonging the service life of the reverse osmosis membrane; and after operating for every certain period of time M min, Ns flushing is performed, with an intention of washing the reverse osmosis membrane, thereby further prolonging the service life of the reverse osmosis membrane.

Description

technical field [0001] The invention relates to the technical field of advanced treatment of drinking water, in particular to a structure of a reverse osmosis water purification machine and an energy-saving method thereof. Background technique [0002] Reverse osmosis technology is a high-efficiency membrane separation technology with good water quality, low energy consumption, no pollution, simple process, and easy operation. It can effectively remove dissolved salts, colloids, microorganisms, organic matter, bacterial impurities, heavy metals and other harmful substances in water, with significant health benefits, and can realize healthy and direct drinking of tap water. It is suitable for tap water purification, pure water preparation, ultrapure water preparation and seawater desalination, etc. The treated water can be directly reused or discharged into landscape water bodies, reservoirs, rivers or lakes. Based on the above advantages, reverse osmosis technology has been...

AI Technical Summary

Problems solved by technology

[0009] Taking "200G reverse osmosis membrane matching 200G pump and 600cc wastewater ratio" as an example to illustrate, under the design temperature, pressure and other conditions, the flow rate of 200G reverse osmosis membrane to prepare clean water is about 525ml / min (milliliters per minute, the same below), The flow rate of the 200G pump water supply is about 1600-1900ml / min, the flow rate of the 800cc wastewater specific discharge concentrated water is about 800-1000ml / min, and the remaining 100-600ml / min water supply cannot be ruled out to form a water pressure in the pipeline, resulting in an increase in the pressure of the waterway. Increasing the working current of the water pump increases, so the power consumption increases; the pressure of the waterway increases, the flow rate of the purified water increases, the surface salinity of the reverse osmosis membrane increases, the desalination rate decreases, the salinity of the purified water increases, and the life of the reverse osmosis membrane decreases. Small

Images