JPH04215715A - Hot water feeder - Google Patents

Abstract

PURPOSE:To obtain a hot water feeder lowering the hardness of hot water when it is high. CONSTITUTION:A hot water storing container 2, a heater 13 heating the water in the container 2, and a discharge port 11 for pouring the hot water in the container 2 are provided, and an ion exchanger cartridge 12 is removably provided at the discharge port 11. The hard component in the hot water is removed by an ion exchange action when the hot water is poured.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water heater for supplying potable hot water to homes, offices, and the like.

0002

BACKGROUND OF THE INVENTION In recent years, interest in delicious water has increased. The Ministry of Health and Welfare's Delicious Water Study Group and other organizations have set out indicators of delicious water, but tap water across the country does not necessarily meet these indicators. In areas such as Okinawa, the hardness of water is extremely high, and home water heaters can hardly reduce its hardness.

0003

[Problems to be Solved by the Invention] The present invention is an attempt to solve such conventional problems, and aims to provide a water heater that can reduce the hardness of hot water when it is high. There is.

0004

[Means for Solving the Problems] In order to achieve the above object, the water heater of the present invention is provided with a hot water storage container, a heater for heating the water in the container, and a discharge port for pouring the hot water in the container. , an ion exchanger cartridge is removably provided at the discharge port.

[0005]

[Function] According to the above structure, when hot water is discharged, the hot water and the ion exchanger come into contact with each other, and hard components in the hot water are removed by the ion exchange action of the ion exchanger. This makes it possible to supply hot water that satisfies the hardness content of the index set by the Delicious Water Study Group of the Ministry of Health and Welfare, even in areas with particularly high hardness.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. In the figure, reference numeral 1 denotes the main body of the water heater, which has a hot water storage container 2 with an inner diameter of 150 mm and a depth of 180 mm for storing hot water therein. Reference numeral 3 denotes an inner stopper attached to seal the mouth of the hot water storage container 2. Further, numeral 4 denotes an upper lid that covers the upper part of the main body 1 so as to be openable and closable. 5 is a check valve, and the inner stopper 3
It passes through and communicates with the inside of the hot water storage container 2, and also communicates with the atmosphere. 6 is a motor provided at the bottom between the main body 1 and the hot water storage container 2; 7 is a pump driven by the motor 6; its suction port 8 communicates with the bottom of the hot water storage container 2; Reference numeral 9 denotes a discharge port of the pump 7, which communicates with a discharge pipe 10 constituting a water pumping path. 11 is a discharge port into which the hot water that has passed through the discharge pipe 10 is poured, and 12 is a discharge port 11.
This is an ion exchanger cartridge that is removably placed outside the ion exchanger cartridge, and an ion exchanger 12a is provided inside the ion exchanger cartridge so that it can be replaced. Reference numeral 13 denotes a heater, which is attached to the lower side surface of the hot water storage container 2. Reference numeral 14 denotes a starting switch and a variable resistor for driving the motor 6, which are operated via a rod 16 when a push button 15 is pressed. Reference numeral 17 denotes a compression type spring, and this spring 17 always urges the rod 16 upward.

The operation of this embodiment will be explained below. To supply hot water stored in hot water storage container 2, push button 1
Press down on 5. That is, by pressing the push button 15 down, the starting switch 14 is turned on, and by pressing it down further, the resistance is varied, the supply voltage is changed, and the motor 6 is energized. When the motor 6 is energized, the pump operates, sucking hot water stored in the hot water storage container 2 through the suction port 8 of the pump 7, and discharging it from the discharge port 11 through the discharge pipe 10 from the discharge port 9. The hot water passes through the ion exchanger cartridge 12. The ion exchanger cartridge 12 is easily removable, so that it can be easily dried after use, washed before use, and replaced with a new ion exchanger 12a. Note that the ion exchanger 12a may be an inorganic ion exchanger such as zeolite, but this time we used 15 ml of Mitsubishi Kasei's ion exchange resin SK-IB (H) and SA-10.
30 ml of A(OH) was mixed and used.

Experimental Example Experimental Water CaCO3 was dissolved in ultrapure water to form a 300 ppm solution.

[0009] Analysis method The hardness was measured using a titration method according to the water purification test item hardness measurement.

[0010] Experimental method 1. 3000 ml of the solution was poured and heated, and when the solution reached 100° C., the solution was sampled at 50 ml/min from the discharge port 11 without attaching the ion exchanger cartridge 12, and the concentration was immediately measured.

2. Pour 3000 ml of experimental water into the device shown in the figure and heat it. When the solution reaches 100°C, the ion exchanger cartridge 12
The solution was sampled from the discharge port 11 at a rate of 50 ml/min, and the concentration was immediately measured.

0012 3. Repeat steps 1 and 2 several times. Experimental result

[0013]

[Table 1]

[0014]

[Table 2]

[0015] Delicious water here refers to the hardness value of the delicious water index provided by the Delicious Water Study Group of the Ministry of Health and Welfare.

[0016] As a result, it is possible to supply hot water that satisfies the amount of hardness components as an index given by the Delicious Water Study Group of the Ministry of Health and Welfare.

[0017]

Effects of the Invention As is clear from this embodiment, the water heater of the present invention is provided with a hot water storage container, a heater for heating the water in the container, and a discharge port for pouring the hot water in the container. By using a water heater with a removably installed cartridge filled with ion exchanger at the outlet, even hot water with higher hardness can be made to have a delicious taste that meets the hardness index set by the Delicious Water Study Group of the Ministry of Health and Welfare. It is possible to supply hot water. In addition, the ion exchanger cartridge is easily removable, making it easy to dry after use, clean before use, and replace with a new ion exchanger, making it highly effective in actual use. It is something that you have.

[Brief explanation of the drawing]

[Fig. 1] A vertical cross-sectional view of a water heater showing an embodiment of the present invention.

[Explanation of symbols]

2 Container for hot water storage 7 Pump 11 Discharge port 12 Ion exchanger cartridge 13 Heater

Claims (1)

[Claims] 1. A water heater comprising a hot water storage container, a heater for heating the water in the container, and a discharge port for pouring the hot water in the container, and an ion exchanger cartridge removably attached to the discharge port.