JPS6130136Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a beverage cooling dispensing device, in particular, a cooling liquid such as water or antifreeze is placed in a liquid tank, and each liquid is wound in a coil shape in this cooling liquid. An evaporation pipe connected to the chamber and a beverage cooling pipe through which the beverage passes are installed, the cooling liquid is cooled by the evaporation pipe, and the cooling liquid is made to flow by a stirring blade, so that the flowing cooling liquid flows through the beverage cooling pipe. The present invention relates to a beverage cooling and dispensing device for cooling beverages.

A conventional example of such a beverage cooling device will be described with reference to FIG. 1. A refrigeration device (not shown) is housed under a main body 1, and a liquid tank 3 is attached above via a heat insulating material 2. A cooling liquid 4 is placed in the liquid tank 3, and an evaporation pipe 5 and a beverage cooling pipe 6 are provided, each of which is wound in a coil shape and arranged concentrically and vertically. The evaporation pipe 5 is connected to a refrigeration device, and the base end of the beverage cooling pipe 6 is connected to a beverage supply source (not shown) via a pot 7, and its tip is opened by a spout 8 and a spout 9. ing.

A centrifugal stirring blade 11 that is attached to an electric motor 10 and sends out the cooling liquid 4 in a radial direction is provided below the center line of the beverage cooling pipe 6, and the rotation of the stirring blade 11 causes the cooling liquid 4 to flow into the beverage cooling pipe 6. The coolant 4 is circulated in the liquid tank 3 by flowing from the top to the bottom in the center and from the bottom to the top in the inner and outer periphery of the evaporation tube 5. Thus, when the cooling liquid 4 cooled around the evaporator tube 5 flows around the beverage cooling tube 6, it is adapted to effectively cool the beverage in the beverage cooling tube 6. When water is used as the coolant 4, cylindrical ice 12 is formed around the evaporation tube 5 as shown by the two-dot chain line, and the ice 12 is formed in the ice storage control element 1.
3, the thickness of the ice, that is, the amount of stored ice is detected, and the refrigeration system is controlled on and off to store a predetermined amount of ice. In this way, ice 12 is placed around the evaporation tube 5.
is generated, so the temperature of the coolant 4 is as low as approximately 0°.

In such a beverage cooling and dispensing device, a low-temperature beverage is cooled from a beverage supply source left in an environment with low outside temperature such as in winter through a beverage cooling pipe 6, and the dispensing pot 8 is opened to allow the beverage to be drunk from a spout 9. Beverages may become more supercooled than necessary. Conversely, when a beverage from a beverage supply source left in an environment with high outside air temperature, such as in the summer, is cooled through the beverage cooling pipe 6, the cooling is insufficient and the beverage is not cooled to an appropriate temperature.

Furthermore, the ice 12 generated around the evaporator tube 5 melts through heat exchange with the beverage, and when the evaporator tube 5 is partially exposed in the cooling liquid 4, the ice 12 in the evaporator tube 5 melts. The temperature of the refrigerant increases through heat exchange with the cooling liquid 4, and finally the ice 12 separates from the evaporation tube 5 into the cooling liquid 4. This detached ice 12 collides with the stirring blade 11, causing abnormal noise, and has the drawback of causing damage to the electric motor 10 due to poor rotation.

This invention eliminates these drawbacks, and allows the beverage to be always cooled to the appropriate temperature regardless of whether it is winter or summer, and prevents the ice from colliding with the stirring blades even if it breaks off from around the evaporation tube. An object of the present invention is to provide a beverage cooling and dispensing device that does not generate abnormal noise or damage an electric motor.

An embodiment of the present invention will be described in detail below with reference to FIG. Note that explanations of the same members as in the conventional example shown in FIG. 1 will be omitted. A hollow cylindrical body 21 is provided above the stirring blade 11 and substantially concentric therewith so as to surround the beverage cooling pipe 6. The upper end of this cylindrical body 21 is opened and positioned below the upper surface of the cooling liquid 4 so as to guide the cooling liquid 4 into the inside of the cylindrical body 21, and the lower end extends close to the stirring blade 11 and has a small diameter. The liquid tank 3 has a plurality of legs 22 on the bottom.
It is attached via. When water is used as the coolant 4, ice 12 is generated as shown in the figure, and the ice storage amount control element 13 turns the refrigeration system on and off.
However, when antifreeze is used as the coolant 4, the refrigeration system is controlled by a liquid temperature control element (not shown) instead of the ice storage control element 13.

A lid 23 is provided at the lower end opening of the cylindrical body 21.
A shaft 24 having a screw on the upper part is fixed above the main body 3, and the screw of the shaft 24 is screwed into a nut 26 rotatably provided on a cover 25 attached to the upper part of the main body 1. Therefore, by rotating the nut 26 and bringing the lid 23 into close contact with the lower end opening of the cylindrical body 21, the lower end opening is closed, and by adjusting the nut 26, the lid 23 can be moved to any position within the height H range. Adjust the flow rate at the opening at the bottom end of the handle. A drain pipe 27 is connected to the side wall near the lower end of the cylindrical body 21, and the drain pipe 27 passes through the liquid tank 3 in a liquid-tight manner and is led out to the outside of the main body 1, and has a stopper 28 attached to its tip. .

Next, the operation of the present invention will be explained. With the lid 23 separated from the cylindrical body 21, the refrigeration device is connected to the electric motor 1.
0, the stirring blade 11 rotates, and this rotation sends out the cooling liquid 4 outward at the bottom of the liquid tank 3, sucks the cooling liquid 4 in the center, that is, inside the cylindrical body 21, and as shown by the arrow A. Produce the flow shown.
At the same time, the cooling liquid 4 inside the heat insulating material 21 is sucked downward, so a flow as shown by arrow B is generated at the upper end opening, and a flow as shown by arrows A and B occurs between the cylindrical body 21 and the side surface of the liquid tank 3. As a result, an upward flow shown by arrow C is generated, forming a circulating flow that passes through the inside and outside of the cylindrical body 21.
Note that, as described above, by adjusting the height H of the lid 23, the amount of circulation can be adjusted. Therefore, the heat exchange between the evaporation pipe 5 and the cooling liquid 4, the ice layer 12 and the cooling liquid 4, and the beverage and the cooling liquid 4 in the beverage cooling pipe 6 are adjusted by making the above-mentioned circulation amount variable.

When an ice layer 12 is generated around the evaporator tube 5 as shown in the figure, when ice pieces detach from the evaporator tube 5 and float in the coolant 4, the ice pieces are moved into the coolant by circulation flow and buoyancy. It floats on the liquid surface of 4. Next, the particles are melted into small pieces and sucked into the cylindrical body 21 and stored therein, but the lid 23 provided near the opening at the lower end of the cylindrical body 21 prevents them from directly flowing out to the stirring blades 11 . As a result, although the ice gradually melts, the lid 23 prevents the ice from colliding with the stirring blade 11, thereby eliminating the occurrence of abnormal noise and damage to the stirring blade 11 and the electric motor.

Since the cooling temperature of the beverage is high when the circulating amount of the cooling liquid 4 is large and low when the circulating amount is small, the cooling temperature is adjusted by raising and lowering the height of the lid 23. Lid 23
The coolant 4 is brought into close contact with the lower end opening of the cylindrical body 21.
If the circulation of the coolant 4 is interrupted, the circulation of the coolant 4 shown by arrows A, B, and C will stop, and since the coolant 4 in the cylindrical body 21 exchanges heat only by natural convection, the circulation of the coolant 4 will stop. The cooling effect of the beverage will be lower than when it is cold. In this case, the rotation of the stirring blade 11 causes the cooling liquid 4 to swirl around the cylindrical body 21 as a whole due to centrifugal force, thereby efficiently exchanging heat between the outer wall surface of the cylindrical body 21 and the evaporation tube 5 or the ice layer 12. be done. Furthermore, the lid 23
When the plug 28 at the tip of the drain pipe 27 is opened to discharge the cooling liquid 4 inside the cylindrical body 21 to the outside while the liquid is in close contact with the cylindrical body 21, the beverage cooling pipe 6 drains air from the cooling liquid 4 outside the cylindrical body 21. The cooling effect is minimized.

Figure 3 shows another embodiment of the present invention.
In this example, the cylindrical body 31 is open at the top and bottom, and a lid 33 is provided on the top and bottom to which a screw shaft 32 is fixed.The screw shaft 32 is screwed into the nut 26, so that the nut 2
By rotating 6, the height of the lid 33 can be adjusted. Therefore, in this example as well, the circulation amount of the cooling liquid 4 can be adjusted by adjusting the height of the lid 33, and when the lid 33 is brought into close contact with the cylindrical body 31, the beverage cooling pipe 6 cools the inside of the cylindrical body 31. The liquid 4 is cooled by natural convection. A discharge pipe 35 that opens toward the inside of the cylindrical body 31 is provided below the cylindrical body 31.
The liquid tank 3 is provided through the liquid tank 3 in a liquid-tight manner, and a stopper 36 is attached to the tip thereof. For this reason, the lid 33 is attached to the cylindrical body 3.
1, open the stopper 36 and remove the cylindrical body 31.
If this water is discharged, the beverage cooling pipe 6 will be cooled through the air from the cylindrical body 31, so that the cooling effect will be minimized. At this time, a hole is made in the center of the screw shaft 32 and the lid 33 in order to introduce air into the inside of the cylindrical body 31.

As mentioned above, the beverage cooling dispensing device of the present invention has the following features:
An evaporation tube wound into a coil and connected to a refrigeration device and a beverage cooling tube through which beverages pass are placed concentrically in a liquid tank storing a cooling liquid such as water, and the beverage cooling tube is A cylindrical body is provided to surround the cylindrical body, and one side of the cylindrical body has a lid that moves up and down, so that the gap between the cylindrical body and the lid can be adjusted, and the cooling liquid inside the cylindrical body can be drained. Furthermore, the cooling liquid is circulated by a stirring blade located below the cylindrical body.

Therefore, the amount of circulation of the cooling liquid, that is, the amount of heat exchange, changes depending on the size of the gap between the cylindrical body and the lid.Furthermore, the inside of the cylindrical body is drained and the beverage cooling pipe is cooled through air, so the beverage cooling is improved. Since the amount of heat exchanged through the tubes can now be adjusted, it has become possible to provide beverages that are always cooled to a constant, appropriate temperature, regardless of whether it is summer or winter. Also, if ice that has frozen around the evaporation tube melts and floats, this ice will not come into contact with the stirring blades because there is a lid.
The present invention has advantages such as eliminating the occurrence of noise and vibration and damage to the electric motor that drives the stirring blades.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a conventional example, FIG. 2 is a sectional view of one embodiment of the present invention, and FIG. 3 is a sectional view of another embodiment of the present invention. 3...Liquid tank, 4...Cooling liquid, 5...Evaporation pipe, 6
... Beverage cooling pipe, 11 ... Stirring blade, 21, 31 ...
...Cylindrical body, 23, 33... Lid, 27... Drain pipe.

Claims (1)

[Scope of utility model registration request] A liquid tank storing a coolant such as water or antifreeze, a coil-shaped evaporation tube located in the liquid tank and connected to a refrigeration device to cool the coolant, and A coiled beverage cooling pipe located on the inside and connected to a beverage supply source; a cylindrical body provided at the outer periphery of the beverage cooling pipe so as to surround the beverage cooling pipe and having both ends open; a lid that is movable so as to come into close contact with or open from the upper or lower end of the body; a stirring blade provided at the bottom of the liquid tank and below the cylindrical body; A beverage cooling dispensing device comprising a drain pipe for discharging the cooling liquid inside the cylindrical body when the beverage cooling dispensing device comes into close contact with the cylindrical body.