JPH04200623A - Device for production of carbonated water - Google Patents

Abstract

PURPOSE:To produce safely a carbonated water of high concn. with high use efficiency of carbonic acid gas by providing a carbonator and vibrator in a cooled water tank and providing a cooling unit in the cooled water tank to constitute a carbonated water producing device. CONSTITUTION:The cooled water tank 3 and the carbonator 2 are made integrally by including the carbonator 2 in the cooled water tank 3. City water is supplied from a water feeder 12 in the back of the body 1 through a piping 15a to the cooled water tank 3. After cooled, the water is supplied from the lower part of the cooled water tank 3 through a piping 15b to the carbonator 2. In the carbonator 2, carbonic acid gas is decreased in its pressure by a pressure reducer 7 from a carbonic acid gas cartridge cylinder 6 and flown from a piping 15c into the carbonator 2 to produce carbonated water. During cooling and carbonating, the vibrator 8 provided in the cooled water tank 3 is operated. The obtd. carbonated water is supplied through a piping 15d to an outlet 13 when a supply button 14 is depressed to pressurize the carbonated water by the pressure of carbonic acid gas.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a carbonated water maker, and particularly to a carbonated water maker for home use.

[Conventional technology]

Carbonated water is produced by blowing carbon dioxide gas into water or by blowing water into carbon dioxide gas. In a home carbonated water maker, the latter method of blowing water into carbon dioxide gas is difficult because it requires the use of a pump and is expensive. For this reason, household carbon dioxide generators use the former method of blowing carbon dioxide into water. However, simply blowing carbon dioxide gas into water does not produce carbonated water with a high carbonation concentration in a short period of time. Therefore, in order to dissolve a large amount of carbon dioxide, conventional home carbonated water makers either blow carbon dioxide gas into a water container and then shake the container, or blow carbon dioxide gas into the water container under high gas pressure. method was adopted. However, the former type of carbonated water maker, which shakes the entire container, has the disadvantage that it involves the risk of being dropped or hit because the container is shaken. In addition, the latter type, which dissolves at high gas pressure, has the disadvantages of the danger associated with high pressure and the increased amount of carbon dioxide gas that is not dissolved, resulting in a large amount of carbon dioxide gas being discarded.

[Problem to be solved by the invention]

The present invention was proposed to solve the above-mentioned drawbacks, and an object of the present invention is to provide a carbonated water maker that is safe, uses carbon dioxide gas efficiently, and can produce highly concentrated carbonated water. shall be.

[Means to solve the problem]

The gist of the present invention is a carbonated water maker characterized in that a carbonator and a vibrator are arranged in a cold water tank, and a cooling unit is arranged in the cold water tank.

In order to achieve the above objective, it is necessary to dissolve carbon dioxide gas in water in a short time even at low gas pressure.The dissolution of carbon dioxide gas into water is related by the following gas-liquid dissolution equation.

N=, xΔC 1/* = l/Hk, +1/βkL ΔC: concentration difference (kg-mol/m') H: Henry's constant (at-・va"7kg-mol) K, z solution Layer-based overall mass transfer coefficient (m/hr) kc: Gas phase mass transfer coefficient (kg-mol/hr-va2・at++) kL: Liquid phase mass transfer coefficient (+/hr) N: Per unit contact of gas and liquid absorption rate (kg-+sol/hr-m") β: reaction constant (-) In order to dissolve carbon dioxide gas in a short time at low pressure, K
, needs to be made larger. And k. Since it is difficult to increase k, it is clear that it is necessary to increase k. In order to increase kL, the liquid boundary film may be reduced by promoting renewal of the gas-liquid interface, such as by stirring, for example.

For the above reasons, the carbonated water maker according to the present invention is configured as described above.

[Function] By having the above configuration, the present invention has no mechanical movement and the dissolution rate of carbon dioxide gas into water is high (so that it is safe, and the use efficiency of carbon dioxide gas is high. A carbonated water maker capable of producing highly concentrated carbonated water can be provided.

〔Example〕

Next, examples of the present invention will be described. It should be noted that the embodiments are merely illustrative, and it goes without saying that various changes and improvements can be made without departing from the spirit of the present invention.

First, the carbonated water maker of the present invention will be explained with reference to FIG.

The cold water tank 3 and carbonator 2 are connected to the carbonator.
2 is housed in the cold water tank 3 as an integrated structure,
Since it is stored compactly, the carbonator 2 can be kept cool at all times, both when producing carbonated water and when storing carbonated water. Cooling is performed by an electronic cooling unit 5 called a Peltier element and a heat exchanger 4 for heat radiation, which are arranged vertically on the side of the cold water tank 3. Exhaust heat from the heat exchanger 4 is treated by sending air taken in by an air blower 10 provided at the bottom of the back of the pod 1 to the heat exchanger 4 and discharging it from the exhaust port 11. Cooling is performed by operating a vibrator 8 provided in the cold water tank 3.

Next, a method for producing carbonated water will be explained. Drinking water is supplied from a water supply port 12 on the back of the body 1 to a cold water tank 3 through a pipe 15a. After cooling, the water is sent from the lower part of the cold water tank 3 to the carbonator 2 through the pipe 15b. Then, carbonated water is produced by reducing the pressure of carbon dioxide gas from the carbon dioxide cartridge cylinder 6 with the pressure reducer 7 and then blowing it into the carbonator 2 through the pipe 15c. Furthermore, during cooling and carbonation, the vibrator 8 provided in the cold water tank 3 operates.

When the water supply button 14 is pressed, the carbonated water produced by the above method is pushed out by the carbon dioxide gas pressure, and the carbonated water
5d and is supplied from the discharge port 13.

〔Effect of the invention〕

According to the carbonated water maker of the present invention, there is no mechanical movement;
The dissolution rate of carbon dioxide gas into water can be increased.

This has the effect of providing a carbonated water maker that is safe, uses carbon dioxide gas efficiently, and can produce highly concentrated carbonated water.

Furthermore, since the vibrator operates during cooling, a flow occurs at a position corresponding to the cooling surface of the cooling unit, promoting heat transfer and improving cooling capacity.

[Brief explanation of the drawing]

FIG. 1 shows an embodiment of the carbonated water maker of the present invention. 1: Body, 2: Carbonator, 3: Cold water tank, 4: Heat exchanger, 5: Cooling unit, 6: Carbon dioxide cartridge cylinder, 7:
fIIi pressure gauge, 8: Vibrator, 9: Oscillator,
10: Blower, 12: Water supply port, 13: Discharge port, 14: Water supply pump, 15a: Piping, 15b: Piping, 15c: Piping, 15d: Piping.

Claims (1)

[Claims] (1) Place the carbonator and vibrator in the cold water tank,
A carbonated water maker characterized by having a cooling unit arranged in a cold water tank.