Determination Device for Determining Antirust Effect of Treated Water and Method for Determining the Same

Abstract

A determination device capable of easily and quickly determining an enhancement in rust-prevention of treated water and a method for determining the same are provided. The device has first and second potential difference measurement devices, each including at least one anode electrode, a pair of cathode electrodes, a first current generator for applying an electric current between the anode and a first cathode of the pair, a second current generator for applying an electric current between the anode and a second cathode, an electric current changer for periodically changing a magnitude of a current between the first and second cathodes, a measurement/output equipment for measuring a potential difference across the first and second cathodes, and a determiner for determining antirust effect of treated water based on signal A outputted by the equipment of the first potential difference measurement device and signal B outputted by that of the second device.

1 . A determination device for determining antirust effect of treated water comprising a first potential difference measurement device and a second potential difference measurement device, wherein the first potential difference measurement device includes:
 at least one anode electrode,   a pair of cathode electrodes having a first cathode electrode and a second cathode electrode,   a first current generator for applying a first electric current between the anode electrode and the first cathode electrode,   a second current generator for applying a second electric current between the anode electrode and the second cathode electrode,   an electric current changer for periodically changing a magnitude of an electric current between the first cathode electrode and the second cathode electrode, and   a measurement and output device for measuring a first potential difference across the first cathode electrode and the second cathode electrode,   wherein the second potential difference measurement device includes:   at least one comparative anode electrode,   a pair of comparative cathode electrodes having a first comparative cathode electrode and a second comparative cathode electrode,   a first current generator for comparison, for applying a first electric current for comparison between the comparative anode electrode and the first comparative cathode electrode,   a second current generator for comparison, for applying a second electric current for comparison between the comparative anode electrode and the second comparative cathode electrode,   an electric current changer for comparison, for periodically changing a magnitude of a comparative electric current between the first comparative cathode electrode and the second comparative cathode electrode, and   a measurement and output device for comparison, for measuring a second potential difference across the first comparative cathode electrode and the second comparative cathode electrode,   wherein the at least one anode electrode and the pair of cathode electrodes of the first potential difference measurement device are immersed in treated water that has been treated with a water treatment device, and the at least one comparative anode electrode and the pair of comparative cathode electrodes of the second potential difference measurement device are immersed in untreated water that has not been treated with a water treatment device, and   a determiner for determining antirust effect of the treated water based on an output signal A outputted by the measurement, and output device of the first potential difference measurement device and an output signal B outputted by the measurement and output device for comparison of the second potential difference measurement device.   
     
     
         2 . The determination device according to  claim 1 , the first potential difference measurement device further including a third current generator for applying an electric current between the first cathode electrode and the second cathode electrode, and the second potential difference measurement device further including a third current generator for comparison, for applying a comparative electric current between the first comparative cathode electrode and the second comparative cathode electrode. 
     
     
         3 . The determination device according to  claim 1 , wherein the determiner determines the antirust effect of the treated water based on a ratio of a level of the output signal A to a level of the output signal B. 
     
     
         4 . The determination device according to  claim 1 , wherein the pair of the cathode electrodes and the pair of the comparative cathode electrodes have a surface made of silver, and the anode electrode and the comparative anode have a surface made of platinum. 
     
     
         5 . The determination device according to  claim 1 , wherein the water treatment device contacts water with a hybrid ceramic which emits far-infrared rays having wavelengths from 4.4 μm to 15.4 μm at an integral emissivity of 92% or more. 
     
     
         6 . A method for determining antirust effect of treated water comprising:
 applying an electric current between a first cathode electrode of a pair of cathode electrodes and at least one anode electrode, and between a second cathode electrode of the pair of cathode electrodes and the anode electrode, wherein the first cathode electrode, the second cathode electrode, and the anode electrode are immersed in treated water that has been treated with a water treatment device;   applying a comparative electric current between a first comparative cathode electrode of a pair of comparative cathode electrodes and at least one comparative anode electrode, and between a second comparative cathode electrode of the pair of comparative cathode electrodes and the comparative anode electrode, wherein the first comparative cathode electrode, the second comparative cathode electrode, and the comparative anode electrode are immersed in untreated water that has not been treated with a water treatment device; and   determining antirust effect of the treated water based on a first potential difference across the first cathode electrode and the second cathode electrode, and a second potential difference across the first comparative cathode electrode and the second comparative cathode electrode.   
     
     
         7 . The method according to  claim 6 , wherein the antirust effect of the treated water is determined based on a ratio of the first potential difference to the second potential difference. 
     
     
         8 . The method according to  claim 6 , wherein the pair of cathode electrodes and the pair of comparative cathode electrodes have a surface made of silver, and the anode electrode and the comparative anode electrode have a surface made of platinum. 
     
     
         9 . The method according to  claim 6 , wherein the water treatment device contacts water with a hybrid ceramic which emits far-infrared rays having wavelengths from 4.4 μm to 15.4 μm at an integral emissivity of 92% or more. 
     
     
         10 . The determination device according to  claim 2 , wherein the determiner determines the antirust effect of the treated water based on a ratio of a level of the output signal A to a level of the output signal B. 
     
     
         11 . The determination device according to  claim 2 , wherein the pair of the cathode electrodes and the pair of the comparative cathode electrodes have a surface made of silver, and the anode electrode and the comparative anode have a surface made of platinum. 
     
     
         12 . The determination device according to  claim 3 , wherein the pair of the cathode electrodes and the pair of the comparative cathode electrodes have a surface made of silver, and the anode electrode and the comparative anode have a surface made of platinum. 
     
     
         13 . The method according to  claim 7 , wherein the pair of cathode electrodes and the pair of comparative cathode electrodes have a surface made of silver, and the anode electrode and the comparative anode electrode have a surface made of platinum.