JPH11115994A - Beverage dispenser - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a beverage dispenser of easy maintenance by preventing deposits from adhering on the inner face of a discharge route for beverage. SOLUTION: A beverage dispenser l is constituted of a cooling water tank 2 for storing cooling water 12, a beverage cooling pipe 3 immersed in the cooling water tank 2, a discharge cock 5 connected with the end of the beverage cooling pipe 3 and the like. Beverage such as draft beer and others discharged out of a storage container 17 is cooled by the indirect heat exchange between the beverage cooling pipe 3 and the cooling water 12 outside the pipe at the time of passing through inside the beverage cooling pipe 3 and fed from the discharge cock 5 into a glass. The inner face of a line in which beverage is passed through, namely the surface of a section being brought into contact with the beverage in the beverage cooling pipe 3 and the discharge cock 5 is formed with the surface roughness of 0.006 mmS or less in the dispenser.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beverage dispenser which is used when a beverage such as draft beer or soft drink is taken out of a storage container, cooled, and distributed to a container such as a glass. The present invention relates to a structure for preventing deposits from adhering to an inner surface of a beverage outlet path.

[0002]

2. Description of the Related Art In a beverage dispenser for draft beer, there is a problem that residual yeast contained in draft beer is deposited on an inner wall surface of a beverage outlet pipe or a spout cock to change the taste of draft beer. . In addition, even in a beverage dispenser for general soft drinks, there is a problem that components of the beverage and the like are bent out and deposited on an inner wall surface of an outlet pipe or the like, thereby causing a change in the composition or the dispensed amount of the beverage. For this reason,
2. Description of the Related Art Conventionally, an operation of cleaning the inside of a lead-out pipe or the like using water or the like once a day after business is closed.

[0003] The interior of the outlet pipe of the beverage dispenser, etc.
Washing once daily is a significant burden on the beverage dispenser user. In addition, changes in taste due to insufficient cleaning or blockage due to sediment, etc.
It is a complaint to beverage manufacturers and dispenser manufacturers.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a beverage dispenser for preventing deposits from adhering to the inner surface of a beverage outlet path. An object of the present invention is to provide a beverage dispenser which is easy to maintain by preventing the dispenser.

[0005]

A beverage dispenser according to the present invention comprises a refrigerant tank in which a refrigerant is stored, and an outlet pipe immersed in the refrigerant tank and through which a beverage discharged from an external storage container flows. A valve provided outside the peripheral wall of the refrigerant tank, penetrating through the peripheral wall and connected to the tip of the outlet pipe, and opening and closing the outlet pipe. In the beverage dispenser cooled inside and supplied to the outside through the valve, the surface of a part that comes into contact with the beverage inside the outlet pipe and the valve is set to 0.
It is characterized by being formed with a surface roughness of 006 mmS or less.

According to the beverage dispenser of the present invention, the surface of the liquid contact portion inside the outlet pipe and the valve is set to 0.00
By forming with a surface roughness of 6 mmS (average interval between local peaks) or less, residual yeast (about 7 μm) contained in draft beer or a component (about 10 μm) of soft drink water
m) and the like are less likely to be trapped by the irregularities on the inner wall surface of the outlet pipe and the valve, and can be prevented from adhering to and coagulating on the inner wall surface. As a result, the frequency of the work of cleaning the inside of the outlet pipe and the valve can be significantly reduced as compared with the conventional case.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a schematic structure of an instant cooling type beverage dispenser for draft beer packed in a barrel. In the figure, 1
Denotes a beverage dispenser, 17 denotes a storage container in which draft beer is stored, and 15 denotes a carbon dioxide gas cylinder. The beverage dispenser 1 includes a cooling water tank 2 (refrigerant tank), a beverage cooling pipe 3 (lead-out pipe), a pouring cock 5 (valve), and the like.

A wall around the cooling water tank 2 is formed of a heat insulating material 4, and cooling water 12 is stored in the cooling water tank 2.
An evaporator 10 is arranged inside the cooling water tank 2 along the inner wall surface, and the evaporator 10 is connected to a refrigerating device 9 arranged below the cooling water tank 2. The cooling water 12 is cooled by the evaporator 10, and a part thereof freezes around the evaporator 10 to become ice 13. A beverage cooling pipe 3 is arranged at the center of the cooling water tank 1 and is immersed in cooling water 12. The beverage cooling pipe 3 is made of stainless steel and formed in a coil shape, and an agitator 11 is disposed inside the cooling pipe. Agitator 11
Is designed to efficiently cool draft beer flowing inside the beverage cooling pipe 3 by stirring the cooling water 12.

[0009] The distal end of the beverage cooling pipe 3 penetrates the heat insulating material 4 and is connected to the pouring cock 5. The rear end of the beverage cooling pipe 3 penetrates the heat insulating material 4 and is connected to one end of a beverage hose 19, and the other end of the beverage hose 19 is connected to a dispense head 18 of a storage container 17. The dispensing head 18 is further connected to a carbon dioxide gas cylinder 15 via a regulator 16, and supplies carbon dioxide to the inside of the storage container 17 to apply pressure.

In the above arrangement, draft beer is poured out as follows. That is, when the discharge cock 5 of the beverage dispenser 1 is opened, the pressure of the carbon dioxide gas causes the storage container 1 to open.
The draft beer in 7 is pushed out of the dispense head 18 through a siphon pipe (not shown) provided in the storage container 17, and is introduced into the beverage cooling pipe 3 through the beverage hose 19. For draft beer, drink cooling pipe 3
Is cooled by indirect heat exchange with the cooling water 12 outside the beverage cooling pipe 3, and is distributed via the pouring cock 5 to a container (not shown) such as a glass.

FIG. 2 is an enlarged sectional view of the spout cock 5. The pouring cock 5 is formed at the tip of the valve box 21 and valve seat 22 made of plastic, a metal valve body 23, a rubber seat portion 24 formed on the seat surface of the valve body 23, and the valve box 21. It comprises a plastic spout 25 and an operating rod 26 for driving the valve body 23.

[0012] In the beverage dispenser of the present invention, the surface roughness of the inner surface of the path through which draft beer passes is formed to be 0.006 mmS. Specifically, the beverage cooling pipe 3 and the pouring cock 5
The surface of the part in contact with draft beer inside is manufactured with the above surface roughness.

As a method for realizing a surface roughness of 0.006 mmS or less, for a metal portion such as the beverage cooling pipe 3, electrolytic polishing can be used. Further, for plastic or rubber parts such as the valve box 21 and the seat part 24 of the pouring cock 5, the surface roughness of a mold used for the production thereof is increased, or mechanical polishing is performed. Can be used.

When the beverage dispenser shown in FIG. 1 is used by incorporating the beverage cooling pipe 3 and the pouring cock 5 having the above-mentioned surface roughness,
Even after 10 days had passed without washing the beverage outlet route, no alteration of taste and adhesion of deposits were observed.

[0015]

According to the beverage dispenser of the present invention, it is possible to prevent adhesion of residual yeast or beverage components to the inner wall surface of the beverage outlet path. As a result, the frequency of cleaning the inside of the beverage outlet path can be significantly reduced.

[Brief description of the drawings]

FIG. 1 is a diagram showing a schematic configuration of a beverage dispenser for draft beer to which the present invention is applied.

FIG. 2 is an enlarged sectional view of a pouring cock portion of the beverage dispenser.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Beverage dispenser, 2 ... Cooling water tank (refrigerant tank), 3 ... Beverage cooling pipe (lead-out pipe), 4 ... Insulation material, 5 ... Pouring cock (valve), 9. ..Refrigeration equipment, 1
0: evaporator, 11: agitator, 12: cooling water (refrigerant), 13: ice, 15: carbon dioxide gas cylinder, 16: regulator, 17: storage container, 1
8: dispensing head, 19: beverage hose,
21 ... valve box, 22 ... valve seat, 23 ... valve body, 2
4 ... seat part, 25 ... spout, 26 ... operating rod.

Claims (1)

[Claims] Claims: 1. A refrigerant tank in which a refrigerant is stored, a discharge pipe immersed in the refrigerant tank, and through which a beverage derived from an external storage container flows, and provided outside a peripheral wall of the refrigerant tank, A valve connected to the distal end of the outlet pipe through the peripheral wall to open and close the outlet pipe, the beverage discharged from the storage container is cooled in the outlet pipe, via the valve, In the beverage dispenser to be supplied to the outside, a surface of a part of the outlet pipe and the valve that contacts the beverage is formed with a surface roughness of 0.006 mmS or less.