Abstract

This circulating water treatment device for treating circulating water flowing to an appliance and a cooling unit connected by a circulation path comprises: a circulating water collecting portion for taking in the circulating water from the circulation path or the cooling unit; a pump for pumping the circulating water into a treatment flow path from the circulating water collecting portion; an ejector which is disposed in the treatment flow path to generate a gas-liquid mixed flow obtained by causing ozone gas supplied from an ozone generating device to dissolve in the circulating water; a bubble treatment portion which communicates with the ejector on the treatment flow path and which atomizes bubbles of ozone gas contained in the circulating water of the gas-liquid mixed flow; a pressurization treatment portion for storing and pressurizing, in a tank, the circulating water having the ozone gas dissolved therein, and returning the circulating water to the circulation path or the cooling unit when the inside of the tank has reached a set condition; and a control portion for controlling a flow rate of the circulating water in the treatment flow path and for controlling supply processing of the ozone gas. This makes it possible for circulating water used in cooling treatment, and a device for circulating the circulating water, to be cleaned. Further, a treatment device having a simple configuration and a reduced cost can be provided.

IPC Classes  ?

• F28G 13/00 - Appliances or processes not covered by groups Combinations of appliances or processes covered by groups
• B01F 23/2326 - Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles adding the flowing main component by suction means, e.g. using an ejector
• B01F 23/2373 - Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media for obtaining fine bubbles, i.e. bubbles with a size below 100 µm
• B01F 25/45 - Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
• B01F 25/53 - Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle in which the mixture is discharged from and reintroduced into a receptacle through a recirculation tube, into which an additional component is introduced
• B01F 35/213 - Measuring of the properties of the mixtures, e.g. temperature, density or colour
• B01F 35/71 - Feed mechanisms
• C02F 1/50 - Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
• C02F 1/78 - Treatment of water, waste water, or sewage by oxidation with ozone
• C02F 5/00 - Softening waterPreventing scaleAdding scale preventatives or scale removers to water, e.g. adding sequestering agents
• C02F 5/08 - Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents