Ion exchange apparatus and method of controlling the same

Abstract

The present invention realizes an ion exchange apparatus capable of enhancing the reliability of regeneration operation. Further, the present invention realizes an ion exchange apparatus capable of simplifying the construction of a salt water supply device. The ion exchange apparatus includes a resin bed housing part (2) in which an ion exchange resin bed (5) is housed; a flow passage control valve (3) for switching between a water service operation and a regeneration operation; and a salt water tank (40) for reserving salt water to be used in regeneration, the flow passage control valve (3) being connected to the salt water tank (40) through a salt water supply line (31), in which the salt water supply line (31) is provided with a flow detecting unit (48) for detecting a flow rate in a direction of supplying salt water and a flow rate in a direction of supplying refill water.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

In the accompanying drawings:

FIG. 1 is a diagram showing an entire construction of an ion exchange apparatus according to a first embodiment of the present invention;

FIG. 2 is a diagram for illustrating a water service operation of the ion exchange apparatus according to the first embodiment of the present invention;

FIG. 3 is a diagram for illustrating a backwash process of the ion exchange apparatus according to the first embodiment of the present invention;

FIG. 4 is a diagram for illustrating a regeneration process of the ion exchange apparatus according to the first embodiment of the present invention;

FIG. 5 is a diagram for illustrating an extrusion process of the ion exchange apparatus according to the first embodiment of the present invention;

FIG. 6 is a diagram for illustrating a rinsing process of the ion exchange apparatus according to the first embodiment of the present invention; and

FIG. 7 is a diagram for illustrating a water-refill process of the ion exchange apparatus according to the first embodiment of the present invention.

Claims

1. An ion exchange apparatus comprising: a resin bed housing part in which an ion exchange resin bed is housed;a flow passage control valve for switching between a water service operation and a regeneration operation; anda salt water tank for reserving salt water to be used in regeneration, the flow passage control valve being connected to the salt water tank through a salt water supply line,wherein the salt water supply line is provided with a flow detecting means for detecting a flow rate in a direction of supplying salt water and a flow rate in a direction of supplying refill water.

2. An ion exchange apparatus controlling method of controlling the ion exchange apparatus according to claim 1, the method comprising:detecting, in a water-refill process, an integrated flow rate in a direction of supplying refill water by a flow detecting means; andterminating the water-refill process when a detected value reaches to a predetermined amount.

3. A method of controlling an ion exchange apparatus according to claim 2, further comprising: detecting, in a regeneration process, an instantaneous flow rate in a direction of supplying salt water by the flow detecting means; andreporting abnormal regeneration when a detected value exceeds zero and is less than a predetermined flow rate.

4. A method of controlling an ion exchange apparatus according to claim 2, further comprising: detecting, in the regeneration process, an instantaneous flow rate in a direction of supplying salt water by the flow detecting means; andterminating the regeneration process and shifting to an extrusion process when a detected value equals to zero.

5. A method of controlling an ion exchange apparatus according to claim 3 or 4, further comprising: detecting, in the regeneration process, an integrated flow rate in a direction of supplying salt water by the flow detecting means; andreporting a shortage of regeneration salt when a amount of difference between a detected value and the value detected at a time of the last water-refill process is less than a predetermined amount.