Water-saving reverse osmosis water purifier

Abstract

The invention relates to a water-saving reverse osmosis water purifier. The water purifier comprises a water intake and exhaust port, a water pretreating component, an intake pump, a reverse osmosis unit and a water outlet, wherein the water outlet is communicated with the outlet of the reverse osmosis unit, the water intake and exhaust port is communicated with the inlet of the reverse osmosis unit, a water inlet pipe at the inlet of the reverse osmosis unit is provided with the water pretreating component and the intake pump; the water purifier also comprises a pressure water tank, an electromagnetic valve and a sensor, wherein the inlet of the water tank is communicated with the concentrated water port of the reverse osmosis unit, the outlet of the water tank is communicated with the water intake and exhaust port, a drainage pipe at the water intake and exhaust port is provided with an electromagnetic valve; the sensor is arranged on a pipeline which is directly communicated with the water intake and exhaust port, and the outlet of the water tank is communicated with the inlet of the intake pump or the outlet of the intake pump. The energy-storage type pressure water tank is used to discharge concentrated water to a downstream water utensil of the water source pipeline from the water intake and exhaust port, thus reasonably and effectively utilizing concentrated water, increasing operation efficiency of concentrated water and realizing energy-saving and environmental protection.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a water-saving reverse osmosis water purifier. Background technique [0002] figure 1 It is a schematic diagram of an ordinary household reverse osmosis water purifier. The tap water flowing out of the tap water pipe flows into three pretreatment filter elements in turn through the water inlet pipe for pretreatment, and then enters the reverse osmosis filter element for advanced treatment after being pressurized by the booster pump. What flows out of the water outlet of the reverse osmosis filter element is pure water, and the concentrated water discharged from the concentrated water outlet of the reverse osmosis filter element is discharged as waste water after the waste water ratio. The waste water ratio is actually a throttling device, which has two functions: 1. Keep the reverse osmosis membrane in the filter element of the reverse osmosis filter with a high enough p...

AI Technical Summary

Problems solved by technology

[0004] 1. There are atmospheric pressure intermediate water tanks, concentrated water outlet pumps and concentrated water outlet taps, resulting in a large increase in costs, increased requirements for installation sites, and increased installation workload;

[0005] 2. Compared with ordinary reverse osmosis water purifiers (such as figure 1 shown) is not compatible, that is, the existing ordinary reverse osmosis water purifier is difficult to transform into figure 2 The principle of reverse osmosis water purifier;

[0006] 3. Ordinary reverse osmosis water purifiers are generally installed under the countertop of the home kitchen, and the figure 2 The principle of reverse osmosis water purifier is not suitable for installation under the platen, which will make it difficult to expand the market share of products using this technology

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