The utility model provides a preparation
system of industrial pure water, which belongs to the technical field of pure water preparation, and comprises a
raw water tank, a
raw water pump, a pretreatment module, an
osmosis desalination module, an EDI (
Electronic Data Interchange)
machine and a pure water tank which are connected in sequence, one end of a
raw water channel of the FO membrane
assembly is connected with the pretreatment module, the other end of the raw
water channel of the FO membrane
assembly is connected with the
reverse osmosis machine, the other end of the
reverse osmosis machine is connected with the EDI machine, the draw solution circulating
system is connected with a draw solution channel of the FO membrane
assembly, and raw water is pre-concentrated through the FO membrane assembly and the draw solution circulating
system, so that the
osmotic pressure of the raw water is reduced; and water molecules can more easily penetrate through the RO membrane of the
reverse osmosis machine, so that the
water production rate is improved, and the technical problem that the
water production rate is low as the raw water is desalted only by a reverse
osmosis process in the prior art is solved.