JPH0541335Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Purpose of the invention] (Field of industrial application) This invention creates ice in advance in a cooler so that even a small water storage tank can meet the demand and supply when cold water is used intensively. Regarding bottle-shaped water coolers.

(Prior Art) This type of bottle-shaped water cooler that has already been proposed is constructed as shown in FIGS. 5 and 6.

That is, in FIGS. 5 and 6, a cold water tank 3 formed of a heat insulating material 2 and a machine room 4 are separated by a partition plate 5 and provided in a frame body 1 provided with an upper lid 1a of the water cooler. A cooler (evaporator) 7 constituting a part of the refrigeration cycle 6 is wound around the lower outer periphery 3a of the cold water tank 3. Also,
A faucet 9 is attached to the bottom 3b of the cold water tank 3 through which a cold water pipe 8 is drawn, and a pedestal 11 for a pot 10 is provided below the faucet 9. Further, in the machine room 4, a compressor 12, which constitutes a part of the refrigeration cycle 6, a condenser 14 equipped with a cooling fan 13, and a capillary reach tube 15 are connected through a refrigerant pipe 16.

Therefore, the above-mentioned water chiller injects a certain amount of water into the cold water tank 3 in advance, and then drives the compressor 12 of the refrigeration cycle.
The refrigerant compressed by the compressor 12 is transferred to the condenser 14, where heat is exchanged to generate liquid refrigerant, and this liquid refrigerant is transferred to the capillary reach tube 15.
The pressure of this liquid refrigerant is reduced by pumping it through the refrigerant. This reduced pressure liquid refrigerant is transferred to the cooler 7.
By transferring the water to the cold water tank 3, the cooler 7 exchanges heat and generates cold water from the water in the cold water tank 3. This cooler 7 detects the water temperature with a temperature sensor (thermistor) S attached to a part of the cooler 7, and prevents the formation of ice.

On the other hand, the above-mentioned water cooler is limited in its installation location due to the store and the counter, so it is not possible to increase the capacity of the cold water tank 3, so the capacity of the cold water tank 3 is reduced and the initial cooling water is It is designed to shorten the time it takes to take it out.

(Problem to be solved by the invention) However, in the above-mentioned water cooler, when the cold water is used for a concentrated period of time, not only is there a risk that the cold water tank 3 with a small capacity may be insufficient in quantity, but also the amount of water used for the next cooling water is insufficient. There are disadvantages such as the need to spend a lot of time before removing the material.

The present invention has been developed in view of the above-mentioned circumstances. During cold water control operation, ice is created in the cooler, and the ice is peeled off from the cooler using hot gas and suspended in the water to create a cold water tank with a small capacity. The purpose of the present invention is to provide a water chiller that can meet the demand and supply even with a small cold water tank when chilled water is intensively used.

[Structure of the idea]

(Means for Solving Problems and Their Effects) The present invention is a water chiller equipped with a refrigeration cycle, in which the discharge side of the compressor of the refrigeration cycle and the inlet side of the cooler are connected by a hot gas circuit. A solenoid valve is attached to the hot gas circuit, and this solenoid valve is connected to a temperature controller installed near the cooler,
During controlled operation of the water chiller, ice is made in the cooler, and the hot gas in the hot gas circuit separates it from the cooler and floats it in the water to exchange heat and generate cold water.
The system is designed so that even a cold water tank with a small capacity will not be insufficient in quantity, and even a small cold water tank can meet the demand and supply when cold water is used intensively.

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

In addition, the present invention will be described with the same reference numerals attached to the same constituent members as in the above-described specific example.

1 to 3, reference numeral 1 denotes a frame body provided with an upper lid 1a in a bottle-type water cooler, and inside this frame body 1, a heat insulating material 2 is provided.
A cold water tank 3 and a machine room 4 formed by 7 is wrapped. Further, the discharge side 12a of the compressor 12 of the refrigeration cycle 6 and the inlet side 7a of the cooler 7 are connected through a hot gas circuit 17, and a solenoid valve 18 is attached to the hot gas circuit 17. Furthermore, this solenoid valve 1
8 is connected to a temperature regulator 19 equipped with a temperature sensor (thermistor) 19a provided near the cooler 7, and this temperature regulator 19 controls the electromagnetic temperature based on the detection signal of the temperature sensor (thermistor) 19a. The valve 18 is opened and hot gas is allowed to flow through the hot gas circuit 17 to warm the lower part 3a of the cold water tank 3, thereby peeling off ring-shaped ice that has formed on the lower part 3a of the cold water tank 3. . Furthermore, the upper opening of the cold water tank 3 equipped with the cooler 7 is provided with an upper lid 1a.
A power switch 20 that is linked to the opening and closing operation of the top cover 1a is attached to the lower upper opening.

Therefore, during the controlled operation of the water chiller, the compressor 12
By driving the ice cooler 7, ice is made in the cooler 7, the hot gas is passed through the hot gas circuit 17 to warm the lower part 3a of the cold water tank 3, and the ice is frozen in the lower part 3a of the cold water tank 3 to form a ring shape. Peel off the eggplant ice and float in the water. When the amount of ring-shaped ice increases, a portion of this ice pushes up the top lid 1a, so the power switch 20 is turned off in conjunction with the opening/closing operation of the top lid 1a, and the power supply from the power supply is interrupted. I'm trying to cut it off.

Next, in another embodiment of the present invention shown in FIG. 4, a plurality of fins 3c are attached in the cold water tank 3, and each fin 3c splits ring-shaped ice with hot gas from a hot gas circuit 17. This is designed to improve ice storage efficiency.

[Effect of idea]

As described above, according to the present invention, in a water chiller equipped with a refrigeration cycle 6, the discharge side 12a of the compressor 12 of the refrigeration cycle 6 and the inlet side 7a of the cooler 7 are connected by the hot gas circuit 17, A solenoid valve 18 is attached to this hot gas circuit 17, and this solenoid valve 18 is connected to a temperature regulator 19 provided near the cooler 7, so that even the cold water tank 3 with a small capacity will not be insufficient in quantity. Not only can this be done, but when cold water is used intensively, even a small cold water tank 3 can meet the demand and supply, and by using late-night electricity, running costs can be reduced. In comparison, the chilled water supply capacity can be greatly increased, and since the configuration is simple, assembly and adjustment are easy, and labor savings can be achieved through mass production.

[Brief explanation of the drawing]

Figure 1 is a sectional view of the water cooler of the present invention, Figure 2 is a diagram of the water cooler of the present invention, Figure 3 is an electrical circuit diagram of the water cooler of the present invention, and Figure 4 is the water cooler of the present invention. FIG. 5 is a sectional view of an already proposed water cooler, and FIG. 6 is a line diagram of an already proposed water cooler. 1... Frame body, 3... Cold water tank, 7... Cooler, 12... Compressor, 14... Condenser, 17...
... Hot gas circuit, 18 ... Solenoid valve, 19 ... Temperature controller, 20 ... Power switch.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. In a water chiller equipped with a refrigeration cycle, the discharge side of the compressor of the refrigeration cycle and the inlet side of the cooler are connected by a hot gas circuit, and a solenoid valve is attached to the hot gas circuit. A water chiller, characterized in that the electromagnetic valve is connected to a temperature regulator provided near the cooler. 2. The water chiller according to claim 1 of the utility model registration, characterized in that a top cover is provided at the upper opening of a cold water tank equipped with a cooler, and a power switch is attached that is linked to the opening/closing operation of the top cover.