Water treatment equipment

Abstract

The invention discloses water treatment equipment. The water treatment equipment comprises a control system, a raw water box, four parallel-connected raw water pumps, three parallel-connected heat exchangers, a flocculating agent feeder, three parallel-connected pan filters, three parallel-connected ultra-filtration devices, an ultra-filtration water box, four parallel-connected RO (Reverse Osmosis) booster pumps, a reducing agent feeder, a scale inhibitor feeder, three parallel-connected safety filters, four parallel-connected primary high-pressure pumps, three groups of parallel-connected primary reverse osmosis devices, a primary RO water box, a sodium hydroxide feeder, four parallel-connected secondary high-pressure pumps, three groups of parallel-connected secondary reverse osmosis devices; a secondary RO water box, two parallel-connected EDI (Electronic Data Interchange) water supply pumps, a sterilizer, a precision filter, an EDI device, a nitrogen-sealed water box, two parallel-connected pure water pumps, a TOC (Total Organic Carbon) remover, a polishing mixed bed and a terminal filter, which are connected in series in sequence. The water treatment equipment has the advantages that the heat exchangers in the water treatment equipment are used when a temperature is lower, and the use of the heat exchangers is stopped when the temperature of the weather rises. The running efficiency of the water treatment equipment is improved.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to water treatment equipment. Background technique [0002] When the double-membrane high-purity water system is used in areas where the water temperature varies greatly in four seasons, the water production of the reverse osmosis equipment is greatly affected by the temperature. The desalination rate and water production of the reverse osmosis system are very sensitive to the change of the inlet water temperature. Increasing the water temperature will cause The desalination rate is reduced, mainly because the diffusion rate of salt molecules through the membrane will be accelerated due to the increase of temperature. At the same time, as the water temperature increases, the water flux increases almost linearly, which is mainly due to the decrease in the viscosity of the water molecules passing through the membrane, resulting in an increase in the diffusion capacity; convers...

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Problems solved by technology

At the same time, as the water temperature increases, the water flux increases almost linearly, which is mainly due to the decrease in the viscosity of the water molecules passing through the membrane, resulting in an increase in the diffusion capacity; conversely, at low temperatures, the water flux of the membrane will decrease. A sharp drop, the desalination rate will increase

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