JPH02303589A - Pure water forming device - Google Patents

Abstract

PURPOSE:To efficiently form the pure water suitable for drinking as it is by taking the water formed by melting the ice in a refrigeratable water storage tank out of a water intake port in the bottom of the tank. CONSTITUTION:The water 33 stored in the water storage tank 12 is cooled by the cold air of the refrigeratable temp. supplied from a cold air supply port 21 into a pure water forming chamber 4. The water 33 in the water storage tank 12 is stirred by a stirring body 19 to a fluid state. The transparent ice 34 without contg. impurities is gradually formed and the water 33 contg. the impurities remain on the inner side thereof. The water 33 is discharged through a pipe 29 for impure water by the operation of a solenoid valve 28. The pure ice 34 is melted as a heater 16 is energized. The water storage tank 12 is formed to the diameter decreasing successively toward the water intake port 14 in the bottom thereof so that the ice 34 efficiently is melted.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a pure water generating apparatus capable of producing pure water without unpleasant taste or odor.

(Prior Art) Traditionally, tap water has been used as drinking water in households.

(The invention aims to solve [fi]) However, in recent years, due to the intensification of pollution of raw water in rivers, lakes, etc., powerful water purification has become necessary, and as a result, tap water has become unpalatable and has a strong chlorine smell Therefore, it is an object of the present invention to provide a pure water generation device that can efficiently generate pure water suitable for drinking as it is.

[Structure of the Invention] (Means for Solving the Problems) The pure water generating device of the present invention has at least a peripheral wall formed of a material with excellent heat conductivity, and has a water reservoir in which cold air capable of making ice flows around the outer periphery of the peripheral wall. a tank, a kudzu stirring device that stirs the water stored in the water tank, and a heating device that melts the ice in the water tank by heating the water tank from its peripheral wall;
The water tank is provided with a water intake device for taking out water obtained by melting ice in the water tank from a water intake port at the bottom of the water tank, and the water tank is configured such that the diameter becomes smaller toward the water intake port at the bottom of the water tank.

(Operation) Ice is generated inside the water storage tank by storing water inside the water storage tank and cooling the water with cold air flowing around the outer periphery of the peripheral wall of the water storage tank while stirring the water with a stirring device. This ice, which does not contain impurities, is gradually generated from the inner surface of the peripheral wall of the water tank, and water containing impurities remains in the center of the water tank. Therefore, the water remaining in the center is discharged from the water intake, and then the ice in the water tank is melted by heating with a heating device, and the melted water is taken out from the water intake using a water intake device to remove impurities. It is possible to obtain pure water that does not contain

When melting Joki ice, the ice melts from the inner surface of the surrounding wall of the water tank, so it tends to move away from the inner surface of the surrounding wall. Since the diameter decreases toward the water intake at the bottom, the ice is always in contact with the inner surface of the water tank, allowing the ice to melt efficiently. Therefore, it is possible to melt the ice in 5 hours, and as a result, it is possible to efficiently generate pure water.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

First, in FIG. 2, 1 is a refrigerator cabinet, 2 and 3 are a freezer compartment and a refrigerator compartment formed in this cabinet 1, and 4 is a partition wall 5, 6 between the freezer compartment 2 and the refrigerator compartment 3, respectively. A case 7 of a pure water generating device is disposed within this pure water generating chamber 4 .

As shown in detail in FIG. 1, the case 7 includes a bottom plate 8,
An inner cylinder 9 fixed on this bottom plate 8 and an inner cylinder 9 fixed on the bottom plate 8.
an outer cylinder 10 fixed to surround the inner cylinders 9;
and a lid plate 11 that closes the upper opening of the outer cylinder 10.

A water storage tank 12 is formed by the inner cylinder 9 and the bottom plate 8 of this case 7.
A water inlet 13 is formed in a portion of the lid plate 11 facing the water tank 12. This water tank 12
The bottom of the tank is formed in a tapered shape that slopes downward toward the center, and a water intake port 14 is formed in the center of the bottom.
In addition, the inner cylinder 9 constituting the peripheral wall of the water tank 12 is made of a material with excellent heat conductivity, such as aluminum. It is formed in the shape of An extension part 15 that constitutes an auxiliary heating part is integrally provided at the lower end of the inner cylinder 9 along the bottom of the water tank 12. It is located on the outer periphery of Therefore, in this case, the water storage tank 12 has a water intake port 1 at the bottom.
It is configured such that the diameter becomes smaller as it goes toward 4. Reference numeral 16 denotes a heater as a heating device provided on the outer circumferential surface of the peripheral wall of the water storage tank 12 (the outer circumferential surface of the inner cylinder 9).

A stirring device 17 is composed of a motor 18 and a stirring body 19 that is rotationally driven by the motor 18.
is disposed in a cylindrical container 20 fixed to the lower surface of the lid plate 11 and located in the center of the water storage 612, and the stirring body 19 is disposed outside the container 20.

In the outer cylinder 10 of the case 7, a cold air outlet 22 is formed at the back so as to face the cold air supply port 21 formed at the back of the pure water generation chamber 4, and a cold air outlet 23 is formed at the front. has been done. Further, the space between the outer cylinder 10 and the inner cylinder 9 is used as a cold air passage 24. 25 is cold air supply port 2
This is a damper that opens and closes 1.

Reference numeral 26 denotes a water intake device, which consists of the water intake port 141; a common vibe 27 connected thereto, an impure water vibe 29 and a pure water vibe 30 connected to this via a switching valve 28. The impure water vibrator 29 faces an evaporation dish (not shown) through the partition wall 6 and the insulating wall at the back of the cabinet 1, and the pure water vibrator 30 faces a pure water storage tank placed in the refrigerator compartment 3 through the partition wall 6. I am facing the 31st.

In addition, 32 is a cooler arranged at the back of the freezer compartment 2, and the cold air generated by the cooler is sent to the freezer compartment 2 by a fan (not shown). Refrigerator room 3. It is also supplied to the pure water generation chamber 4. Furthermore, although not shown, a water supply tank and a water supply pump are disposed in the refrigerator compartment 3 in the cabinet 1, for example, and the water in the water supply tank is supplied from the water inlet 13 to the water storage tank 1.
It is designed to be supplied within 2 days.

Now, in the above configuration, when producing pure water, first, a predetermined amount of water 33 (for example, tap water) is supplied from a water supply tank (not shown) into the water storage tank 12 through the water inlet 13 as shown in FIG. and stored. Also, at this time, the damper 25 is in the open state, and the cold air at a temperature that allows ice making is supplied from the cold air supply port 21 into the pure water generation chamber 4 and enters the case 7 from the cold air intake 22 and flows through the cold air passage 24. The water 33 stored in the water storage tank 12 is cooled by the cold air in this process. Furthermore, at this time, the motor 18- of the stirring device 17 is driven to rotate the stirring body 19, and the water 33 in the water storage tank 12 is stirred by the stirring body 19 to be in a fluid state. As a result, transparent ice 34 containing no impurities is gradually generated in the water storage tank 12 from the inner surface of the peripheral wall (inner cylinder 9) of the water storage tank 12 in a cylindrical shape as shown in FIG. , and water 33 containing impurities remains inside.

When the generation of transparent ice 34 progresses and a predetermined amount of ice 34 is generated, an ice sensor (not shown) provided in the water storage tank 12 detects this, and based on this, the damper 25 is closed. Then, the supply of cold air to the pure water generation chamber 4 is stopped, and further generation of ice by the remaining water 33 containing impurities is stopped.

At the same time, the motor 18 of the agitation device 17 is cut off and its driving is stopped, and the switching valve 28 of the water intake device 26 is changed from the previously closed state to the common vibrator 27.
is operated to allow the impure water to pass through the impure water vibe 29.

By operating the switching valve 28, the water 33 containing many impurities remaining in the center of the water tank 12 is discharged from the water intake 14 through the common vibrator 27 and the impure water vibrator 29 toward an evaporation dish (not shown). .

Next, after the switching valve 28 is closed again, the heater 16 is energized and generates heat, which melts the pure ice 34 in the water tank 12 via the inner cylinder 9. At this time, the ice 34 is melted from the outside by being heated by the inner cylinder 9, which is the peripheral wall of the water storage tank 12, and the extension part 15, which is the auxiliary heating part at the bottom. As the dimensions are gradually reduced, the length in the vertical direction also becomes smaller. In this case, since the diameter of the water storage tank 12 decreases toward the water intake port 14 at the bottom, the outer peripheral surface of the ice 34 is always in contact with the inner surface of the inner cylinder 9 and is heated from there, and the lower surface is also heated. Since it is always in contact with the extension part 15 and is heated from there, the ice 34 can be efficiently melted and the ice 34 can be melted in a relatively short time.

The switching valve 28 of the water intake device 26 is switched to allow the common vibrator 27 to communicate with the pure water vibrator 30, so that the pure water generated by melting the pure ice 34 is transferred to the water storage tank. The pure water storage tank 31 is passed through the common vibrator 27 and the pure water vibrator 30 from the 12 water intake ports 14.
is stored in

Repeat the above to remove impurities from tap water ((
In addition, it is possible to efficiently obtain pure water that is free of unpleasant taste and odor and is suitable for drinking.

It should be noted that the present invention is not limited to the embodiments described above and shown in the drawings; for example, the present invention may be configured independently without being incorporated into a refrigerator, without departing from the gist. It can be implemented with appropriate changes within the scope.

[Effects of the Invention] As is clear from the above description, the pure water generating device of the present invention stirs the water stored in the water tank with the stirring device and cools it by the cold air flowing around the outer periphery of the peripheral wall of the water tank. By doing this, pure ice containing no impurities is generated, and after draining the remaining water containing impurities from the water storage tank, the water is melted by heating with a heating device, and then taken out from the water intake with a water intake device. This makes it possible to obtain pure water that does not contain impurities, has no unpleasant taste or odor, and is suitable for drinking as is. Moreover, in this product, the water tank is configured so that the diameter becomes smaller toward the water intake at the bottom, so when the ice is melted by the heating device, the ice can be melted efficiently and in a short time. Therefore, pure water can be efficiently produced.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, with FIG. 1 being a vertical sectional view of the main parts, and FIG. 2 being a vertical sectional side view of the device installed in a refrigerator. In the drawing, 4 is a pure water generation chamber, 9 is an inner cylinder (peripheral wall part), 12 is a water tank, 14 is a water intake port, 16 is a heater (heating device), 1
7 is a stirring device, 24 is a cold air passage, 26 is a water intake device, 33
indicates water and 34 indicates ice. Figure 1

Claims (1)

[Claims] 1. A water storage tank with at least a peripheral wall made of a material with excellent heat conductivity, and a water storage tank provided so that cold air capable of making ice flows around the outer periphery of the peripheral wall, and a water storage tank that stirs the water stored in the water storage tank. a stirring device provided in the tank; a heating device provided to melt the ice in the water tank by heating the water tank from the peripheral wall; 1. A pure water generating device comprising: a water intake device installed to take out water from a water intake port at the bottom, the water tank having a diameter decreasing toward the water intake port at the bottom.