Purified water production device and production method

Abstract

The invention relates to the field of purified water production devices, in particular to a purified water production device and a production method. The purified water production device and the production method aim to solve the problems that in the prior art, the purified water production device is high in cost, short in service life of a filter material, instable in produced water quality and low in produced water purity. Along a product processing sequence, the purified water production device sequentially comprises a raw material water buffering device, a pretreating and filtering device,a multi-stage reverse osmosis type EDI purified water device and a terminal water device, wherein the multi-stage reverse osmosis device comprises a first-stage reverse osmosis part, a first-stage water producing tank, a second-stage reverse osmosis part, a second-stage water producing tank, an EDI purified water part, and a water producing loop sequentially connected with the reverse osmosis part, the first-stage water producing tank, the second-stage reverse osmosis part, the second-stage water producing tank and the EDI purified water so as to be flown out. The purified water production device also comprises a control device for controlling on and off of a passageway between the multi-stage reverse osmosis device and the terminal water device. The purified water production device and the production method have the advantages that the recovery rate of the whole water producing device is higher, the water resource saving and utilizing rate is higher, and the production cost is lower;meanwhile, the produced water quality is more stable, and the purity is higher; the whole filtering system is better in ecological stability, and a filtering material of the filtering system is longer in service life and more energy-saving.

Description

technical field [0001] The invention relates to the field of electronic and pharmaceutical equipment, in particular to purified water production equipment and a production method. Background technique [0002] Purified water is a colorless, odorless clear liquid. Refers to the electronic cleaning water and pharmaceutical water prepared by drinking water through distillation, ion exchange, reverse osmosis or other suitable methods. The purified water has low conductivity, so it is mostly used in medical production. Therefore, the terminal of the purified water production equipment is mostly connected to the raw water pipe of the raw material of the pharmaceutical equipment. [0003] The main improvement to purified water production equipment at this stage is to improve its work efficiency and product quality. For example, in the published Chinese patent literature, a purified water production system named CN203866146U discloses a system with The purified water production eq...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of high operating cost of purified water production equipment and unstable water quality in the prior art

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