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1. (WO2018159300) COOLING TOWER SYSTEM

Pub. No.:    WO/2018/159300    International Application No.:    PCT/JP2018/005176
Publication Date: Sat Sep 08 01:59:59 CEST 2018 International Filing Date: Fri Feb 16 00:59:59 CET 2018
IPC: F28F 27/00
B01D 61/02
B01D 61/12
B01D 61/14
B01D 61/58
C02F 1/44
F28G 13/00
Applicants: KURITA WATER INDUSTRIES LTD.
栗田工業株式会社
Inventors: ITOU, Kouji
伊藤 孝次
MIWA, Masayuki
三輪 昌之
Title: COOLING TOWER SYSTEM
Abstract:
When recirculation and supply of cooling water from a cooling tower 1 to a heat exchanger 4 is continued, the water level inside a pit 1d gradually decreases and electrical conductivity gradually increases. A submersible pump 8 starts operation once the electrical conductivity reaches an intermediate value C2. The water supply from the submersible pump 8 undergoes RO treatment by an RO device 13, concentrate is discharged outside the system, and permeate is guided to the pit 1d. Once the water level decreases to a lower limit H0, a ball tap 21 opens, and replenishment water is supplied until the water level increases to an upper limit H1. The submersible pump 8 stops when the electrical conductivity decreases to a prescribed value C1 in conjunction with the replenishment water supply.