Variable-frequency pulse irrigation reverse osmosis (RO) water purification machine and method

Abstract

The invention relates to a variable-frequency pulse irrigation reverse osmosis (RO) water purification machine and method and belongs to the technical field of purification. The variable-frequency pulse irrigation reverse osmosis (RO) water purification machine comprises a front PP cotton filter element, an alkalescent ceramic filter element, a rear PP cotton filter element, a TDS sensor, a waterinlet electromagnetic valve, a booster pump, a reverse osmosis (RO) membrane filter element, a second irrigation valve, a one-way valve, a pressure water storage barrel, a high-pressure switch, a rearactivated carbon filter element, a faucet, a wastewater proportional valve and a first irrigation valve, wherein the front PP cotton filter element, the alkalescent ceramic filter element, the rear PP cotton filter element, the TDS sensor, the water inlet electromagnetic valve, the booster pump, the reverse osmosis (RO) membrane filter element, the one-way valve, the pressure water storage barrel, the high-pressure switch, the rear activated carbon filter element and the faucet are sequentially connected along a flowing direction, the first irrigation valve is connected with the alkalescent ceramic filter element, the second irrigation valve and the wastewater proportional valve are connected with the reverse osmosis (RO) membrane filter element, and the second irrigation valve is parallelly connected with the wastewater proportional valve. By the arrangement, the service life of the variable-frequency pulse irrigation reverse osmosis (RO) water purification machine can be prolonged.

Description

technical field [0001] The invention relates to a frequency conversion pulse flushing reverse osmosis RO pure water machine and a method, belonging to the technical field of purification. Background technique [0002] The traditional reverse osmosis pure water machine wastes 3 cups of waste water to make a cup of pure water, and the water efficiency utilization rate is 25%. The utilization rate must be above 35%. If the waste water is reduced and the water efficiency utilization rate is improved by simply reducing the waste water proportional valve flux and reducing the flushing time of the waste water flushing valve on the original basis, the life of the RO membrane filter element will be seriously damaged. The life of the RO filter element will be shortened with the reduction of the flux of the wastewater proportional valve and the decrease of the flushing water of the wastewater flushing valve. In this case, the pursuit of high water efficiency utilization will greatly sh...

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Problems solved by technology

[0002] The traditional reverse osmosis pure water machine wastes 3 cups of waste water to make a cup of pure water, and the water efficiency utilization rate is 25%. The utilization rate must be above 35%. If the waste water is reduced and the water efficiency utilization rate is improved by simply reducing the waste water proportional valve flux and reducing the flushing time of the waste water flushing valve on the original basis, the life of the RO membrane filter element will be seriously damaged. The life of the RO filter element will be shortened with the reduction of the flux of the wastewater proportional valve and the decrease of the flushing water of the wastewater flushing valve. In this case, the pursuit of high water efficiency utilization will greatly shorten the life of the RO membrane filter element, which increases the user's use cost.

In view of this, a reverse osmosis pure water machine is disclosed in the patent document whose application number is 201410381192.5, and the water efficiency utilization rate of the above reference document is low

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