JPH05172422A - Hot water cooler and method of cooling hot water - Google Patents

Abstract

PURPOSE:To cool down hot water and keep it cold at a room temperature or below by disposing connecting pipes with cooling fins between each of adsorption material vessels and a refrigerant vessel and keeping a system in which a bypass pipe is provided between each of portions where cooling fins are disposed and the refrigerant vessel in a vacuum condition. CONSTITUTION:Power is supplied to a heater for a water vessel and to heaters 1a, 1b for adsorption material vessels 3a, 3b, and a refrigerant liquid 4 adsorbed on the adsorption materials 2a, 2b is separated therefrom as vapor. The refrigerant vapor passes through connecting pipes 9a, 9b, is condensed by cooling fins 7a, 7b to be converted into the refrigerant liquid 4 and returns to a refrigerant vessel through bypass pipes 10a, 10b. At a point of time when a temperature in the water vessel reaches a boiling point, the supply of power to the heater for the water vessel is stopped, but the heaters 1a, 1b are kept in the condition of power supply. Hot water is allowed to flow into a cooling pipe 5 through an inlet port 5a thereof and, after heat exchange is effected between the hot water and the refrigerant liquid 4, the hot water circulates to be returned to the water vessel, thus the hot water is cooled clown to about 50 deg.C. According to this operation, the refrigerant liquid 4 is boiled at about 60 deg.C by heat of the hot water to be evaporated, and is condensed by cooling fins 8a, 8b and by the cooling fins 7a, 7b, thus the refrigerant is repeated to circulate to the refrigerant vessel 6 through the bypass pipes 10a, 10b. According to this continuous operation, the boiled hot water can be cooled down to 10 deg.C.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water cooler and a hot water cooling method capable of rapidly cooling hot water, boiled barley tea or the like and then maintaining the temperature below room temperature.

[0002]

2. Description of the Related Art Heretofore, there has been no device capable of consistently cooling hot water and keeping the temperature below room temperature, and these operations have been performed separately. For example, barley tea has been prepared by extracting tea with boiled water, cooling it to near room temperature with tap water, etc., and then cooling and keeping it in a refrigerator.

[0003]

However, the conventional cooling and cooling methods as described above have a problem that it is troublesome. Further, there has been a problem that the room for a refrigerator is reduced due to the increase in refrigerated foods in recent years, and there is no place to store a cooling container.

The present invention solves the above problems,
A hot water cooler and a hot water cooling method capable of consistently cooling hot water and keeping the temperature below room temperature.

[0005]

In order to solve the above-mentioned problems, according to the present invention, cooling to about 50 ° C. is performed by pouring hot water into a cooling pipe immersed in a refrigerant liquid and evaporating the refrigerant liquid generated under vacuum. Utilizing the condensation, the cooling from about 50 ° C to the following utilizes the latent heat of vaporization of the refrigerant liquid generated by using a strong adsorbent.
Further, the above adsorbent, until the temperature is lowered to about 50 ℃, in order to maintain activation and activation force, it is heated above the adsorption force generation temperature, then by stopping the heating,
Start adsorption and allow cooling below room temperature. Furthermore, two containers for the adsorbent are provided and alternately operated to enable cold storage for a long time.

In order to carry out the above-described hot water cooling method, the hot water cooler of the present invention comprises two containers for accommodating an adsorbent having a heater, and a container for accommodating a refrigerant containing a hot water cooling pipe. ,
The adsorbent container and the refrigerant container are connected to each other, and the connecting pipe is provided with a cooling fin, and the bypass pipe for circulating the liquid refrigerant condensed in the refrigerant container from the mounting portion of the fin is constituted by these. The system is a vacuum.

[0007]

With the above structure, when boiling water having a temperature of 100 ° C. is passed through the cooling pipe, the boiling point of the refrigerant under vacuum becomes about 60 ° C.,
It boils, and its latent heat of vaporization reduces it to about 50 ° C. The evaporated refrigerant vapor is condensed in a connecting pipe having fins, returns to the refrigerant container through the bypass pipe, maintains a constant amount of the refrigerant, and quickly lowers the hot water temperature. The adsorbent is heated by a heater at the same time as boiling water and discharges the adsorbed refrigerant to recover its activity.When the hot water temperature of the cooling pipe drops to about 50 ° C, the heating is stopped at the same time and refrigerant vapor adsorption starts. The latent heat of vaporization of the refrigerant in the refrigerant container lowers the temperature of the hot water in the cooling pipe. If the adsorption force of one of the adsorbent containers disappears, the heater is operated to start the reactivation process, and at the same time, the heating of the other adsorbent container is stopped to keep the temperature below room temperature.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to the sectional view of the construction of FIG.

In FIG. 1, the hot water cooler according to the present invention is
Built-in heaters 1a and 1b, respectively, and further adsorbent 2
Two adsorbent containers 3a and 3b containing a and 2b
And a refrigerant container 6 containing the refrigerant liquid 4 and having a built-in cooling pipe 5 for hot water immersed in the refrigerant liquid 4, and the adsorbent containers 3a and 3b and the refrigerant container 6 are connected to each other to form an N-shape. The cooling fins 7a and 8a on the upright portions.
And a bypass pipe 10a for circulating the condensed refrigerant liquid 4 for connecting the refrigerant pipe 6 and the connecting pipes 9a and 9b provided with 7b and 8b and the bent portions below the connecting pipes 9a and 9b.
And 10b, and the inside of the system is evacuated. In addition, the cooling pipe 5 built in the above-mentioned refrigerant container 6
Is provided with an inflow port 5a above the refrigerant container 6 and a discharge port 5b below, and the outlet from the refrigerant container 6 is sealed.

The operation of the hot water cooler thus constructed will be described. Water container heater (both not shown) and adsorbent container 3
The refrigerant liquid 4 adsorbed to the adsorbents 2a and 2b is simultaneously energized in the heaters 1a and 1b of a and 3b to be separated as vapor (reactivation treatment). The refrigerant vapor passes through the connecting pipes 9a and 9b and is condensed by the cooling fins 7a and 7b,
It becomes the refrigerant liquid 4, and returns to the refrigerant container through the bypass pipes 10a and 10b. When the water container reaches the boiling point, the energization of the heater of the water container is stopped, and the heater 1 of the adsorbent containers 3a and 3b is heated.
For a and 1b, while continuing to energize, open the discharge port of the water container, pour hot water from the inflow port 5a of the cooling pipe 5, and perform circulation for returning the hot water after heat exchange with the refrigerant liquid 4 to the water container.
Cool to 50 ° C. By this operation, the refrigerant liquid 4 boils and evaporates at about 60 ° C. due to the heat of the hot water, and the cooling fins 8a and 8b.
And 7a and 7b to condense and return to the refrigerant container 6 through the bypass pipes 10a and 10b. Since the adsorbent 2a is heated during this operation, the adsorption of the refrigerant liquid vapor does not occur.

In this way, the results of comparing the temperature drop state when 0.5 liter of water is used as the refrigerant liquid 4 and the cooling water of 3 liter is cooled and the case where it is immersed in the conventional running water are shown. Shown in 1.

[0012]

[Table 1]

When the hot water circulation is continued and the hot water temperature reaches 60 ° C., the energization of only the heater 1b is stopped, and the adsorbent container 3b.
The temperature of the adsorbent 2b (zeolite 13x, 1.0 kg per container is used) is reduced to adsorb the vapor of the refrigerant liquid 4 to lower the temperature of the refrigerant liquid 4 to further lower the hot water temperature. After continuing this operation for 20 minutes, the energization of the heater 1a is stopped, the heater 1b is re-energized, and the adsorbent 2 of the adsorbent container 3b is adsorbed.
Heating b, lowering the temperature of the adsorbent 2a in the adsorbent container 3a, and repeating the same operation as above are repeated.

As a result of comparison with the conventional one left in a refrigerator (atmosphere 5 ° C.), the cooling method of this example and Table 2 were obtained.

[0015]

[Table 2]

In this embodiment, Zeolite 13x is used, but it goes without saying that various kinds of zeolite, aluminosilicate gel, silica gel and activated alumina may be used. In addition, these give results equivalent to those of zeolite 13x by experimentally determining the reactivation temperature condition according to the type of adsorbent. Further, it goes without saying that the refrigerant liquid may use various organic solvents, chlorofluorocarbon-based solvents, and water + freezing agents other than water.

[0017]

As described above, according to the present invention,
A hot water cooler that can cool boiling water to 10 ° C by continuous operation is obtained.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing the construction of a hot water cooler according to the present invention.

[Explanation of symbols]

1a, 1b ... Heater, 2a, 2b ... Adsorbent, 3a, 3b ...
Adsorbent container, 4 ... Refrigerant liquid, 5 ... Cooling pipe, 5a ... Inlet port, 5b ... Discharge port, 6 ... Refrigerant container, 7a, 7b,
8a, 8b ... Cooling fins, 9a, 9b ... Connection pipes, 10a, 1
0b ... Bypass pipe.

Claims (2)

[Claims] 1. A connecting pipe having cooling fins is provided between a container provided with a heater for containing an adsorbent and a container containing a coolant and containing a cooling pipe for hot water. A hot water cooler in which a system in which a bypass path is provided in a container accommodating a refrigerant from an arrangement portion is made into a vacuum is used. 2. The refrigerant vapor adsorbent is heated by a heater to discharge the adsorbed refrigerant vapor to recover the activity and maintain the activity as it is. It circulates and cools to the hot water by using the latent heat of vaporization of the refrigerant, and below that uses the latent heat of vaporization of the refrigerant liquid generated by the adsorption of the refrigerant vapor of the adsorbent whose heating has been stopped to keep the temperature below room temperature Method.