JP3407908B2 - Beverage supply device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beverage supply apparatus for cooling and extracting a beverage in a beverage tank. 2. Description of the Related Art Conventionally, a beverage supply apparatus for cooling and supplying a beverage such as beer is disclosed in, for example, Japanese Utility Model Laid-Open No. 63-190880.
As shown in the publication (F25D11 / 00), cooling water is stored in a water tank, which is cooled by an evaporating pipe of a cooling device to generate ice around the cooling water, and a beverage cooling pipe is provided in the water tank. Are arranged in a coil shape, and beer is extracted through the inside of the beverage cooling pipe, thereby instantaneously cooling and supplying the beer. Also,
A stirrer is provided to stir the cooling water in the water tank uniformly so as to improve the cooling effect of the beverage cooling pipe. That is, the structure of the conventional beverage supply apparatus 100 will be described in more detail with reference to FIGS. For example, beer as a beverage is stored in the beverage tank 2, and the beer in the beverage tank 2 is constantly pressurized by the carbon dioxide gas cylinder 3. Case 10 of beverage supply device 100
1, a water tank 102 is housed therein.
Cooling water is stored therein and is constantly stirred by the stirrer 103. The stirrer 103 is a motor 10 fixed to a mounting plate 104 that is inserted into the upper end opening of the water tank 102.
3M, a shaft 105 descending from the motor 103M into the water tank 102 below, and a stirring blade 106 attached to the tip of the shaft 105. [0004] A cooling device 107 is further provided in the case 101. The cooling device 107 includes a compressor 108 constituting a refrigeration cycle, a condenser 109, an evaporating pipe 110 serving as an evaporator, and a condenser cooling fan 111. The evaporating pipe 110 is coiled in the water tank 102. To cool the cooling water in the water tank 102.
On the other hand, a beverage cooling pipe 112 is disposed in a coil shape in the water tank 102, and is immersed in the cooling water, and a lower end thereof is connected to a connection port 6 provided in a lower part of the front surface of the case 101 by a joint 113.
The upper end is connected to the cock 4 provided on the upper part of the front surface of the case 102 by a joint 114. The beverage pipe 9 drawn from the beverage tank 2
Is connected to the connection port 6. The evaporating pipe 1
The cooling water in the water tank 102 is cooled by the cooling by 10, and an ice layer I is generated on the outer periphery of the evaporation pipe 110. [0005] When the cock 4 is opened in such a configuration, the beer in the beverage tank 2 is extruded into the beverage pipe 9 by pressurization from the carbon dioxide gas cylinder 3 and then flows into the beverage cooling pipe 112 and passes therethrough. Extracted from the cock 4. The beverage cooling pipe 112 is cooled by the latent heat of the ice layer I in the water tank 102, and the beer is cooled by the beverage cooling pipe 11.
In the process of passing through 2, it is instantaneously cooled from its wall,
The temperature becomes low enough to be consumed and is extracted from the cock 4. The motor 103M of the stirrer 103 constantly rotates the stirring blades 106 to stir the cooling water, thereby enhancing the cooling effect of the beverage cooling pipe 112. [0006] Here, there is a problem that tartaric acid contained in beer adheres and grows on the inner wall surface of the beverage cooling pipe 112, and this acts as a resistance to cause the passing beer to foam. For this purpose, the beverage cooling pipe 112 needs to be periodically removed with the joints 113 and 114, taken out of the water tank 102, and the inside thereof needs to be chemically washed. However, with the conventional structure as described above, the beverage cooling pipe 112 is removed. In this case, the stirrer 103 and the mounting plate 104 are in the way, so they must be disassembled at the same time, and the maintenance work is complicated. Further, since the motor 103M of the stirrer 103 is located at the opening of the water tank 102 and is strongly affected by the cooling action of the cooling water in the water tank 102, dew condensation occurs on the surface of the motor 103M. Was. The present invention has been made to solve such a conventional technical problem, and an object of the present invention is to provide a beverage supply device capable of facilitating maintenance work and suppressing occurrence of a failure. [0008] A beverage supply apparatus 1 of the present invention.
Stores a cooling water, arranges a beverage cooling pipe 17 in the water tank 7 cooled by the cooling device 12,
The beverage stored in the water cooling pipe 17 is extracted by passing through the beverage cooling pipe 17, and is provided rotatably in the water tank 7, provided with a stirrer 26 having a magnet, and provided outside the water tank 7. The rotation shaft 15 is attached to the rotation shaft 15 of the stirring motor (motor) 11M disposed so that the rotation shaft 15 is located on the same axis as the rotation shaft 24 of the stirrer 26. The stirrer 2 located outside the water tank 7
And a guide plate 31 which extends radially around the stirrer 26 and is provided in the water tank 7 and protrudes into the water tank 7. A holding portion 32 for holding the beverage cooling pipe 17 is formed at an edge of the guide plate 31. According to the beverage supply device 1 of the present invention, the stirrer 26
Is the rotating shaft 15 of the magnet and the stirring motor (motor) 11M.
By the magnetic coupling with the power transmission magnet board 28 attached to the water tank 7, the cooling water in the water tank 7 is stirred by being rotationally driven by the stirring motor (motor) 11M. At this time, the stirrer 26
Is located in the water tank 7 and the stirring motor (motor) 11M is also outside the water tank 7, so that it does not hinder the removal of the beverage cooling pipe 17 from the water tank 7, and the stirring motor (motor) 1
1M is also difficult to be cooled from the cooling water in the water tank 7. Since the guide plate 31 extending radially around the stirrer 26 and protruding inward is provided in the water tank 7, the horizontal vortex water flow formed by the stirrer 26 is applied to the guide plate 31. Since the water collides and goes inward, the cooling water in substantially the entire region in the water tank 7 can be uniformly stirred. Furthermore, since the holding portion 32 for holding the beverage cooling pipe 17 is formed at the edge of the guide plate 31, the guide plate 3
The temporary cooling of the beverage cooling pipe 17 is achieved by 1, and the positioning when the beverage cooling pipe 17 is attached becomes easy, so that the attaching operation can be performed smoothly. Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a vertical sectional side view of the beverage supply device 1 showing an internal configuration of the beverage supply device 1 of the present invention, FIG. 2 is a perspective view of the beverage supply device 1, and FIG. 8 and 9 are the same as those in FIGS. 8 and 9, and the same beverage tank 2, carbon dioxide gas cylinder 3, and beverage pipe 9 are used. In the case 5 of the beverage supply device 1 of the present invention, a water tank 7 made of a stainless steel plate storing cooling water, and a cooling device including a compressor 8, a condenser 9, a condenser cooling fan 11, and the like below the water tank 7. An apparatus 12 is provided. The water tank 7 is open upward, and a heat insulating wall 13 is provided around the water tank 7 to be insulated. Insulating wall 1
A cutout 14 is formed on the bottom surface of the tank 3, and the bottom surface of the bottom wall 7A of the water tank 7 is exposed to the outside in this portion.
As will be described later, a motor 11M of the condenser cooling fan 11, which also serves as a stirring motor, is located below the notch. The rotating shaft 15 of the motor 11M projects vertically, and the condenser cooling fan 11 is attached to the lower end of the rotating shaft 15. An evaporating pipe 16 as an evaporator constituting a refrigerating cycle of the cooling device 12 together with the compressor 8 and the condenser 9 is inserted into the water tank 7 in a coil shape, and is immersed in the cooling water in the water tank 7. Then cool it. On the other hand, a coil-shaped beverage cooling pipe 17 is inserted and arranged from above in the water tank 7, and is submerged in the cooling water. Similarly, a connection port 6 to which a cock 4 for extracting a beverage and a beverage pipe 9 from the beverage tank 2 are provided respectively on the upper and lower sides of the front surface of the case 5, and a beverage cooling pipe 17 is provided from the cock 4 above the water tank 7. 18 and the pipe 19 from the connection port 6
Are connected to joints 21 and 22, respectively. The beverage pipe 9 drawn from the beverage tank 2 has a rotary shaft 24 erected above the notch 14 on the upper surface of the bottom wall 7A of the water tank 7 connected to the connection port 6 as described above. A stirrer 26 is rotatably attached to the rotating shaft 24. The rotating shaft 24 is located on the same axis as the rotating shaft 15 of the motor 11M, and a plurality of convex portions 27 are provided on the upper surface of the stirrer 26 as shown in FIG. A permanent magnet (not shown) is attached. on the other hand,
A power transmission magnet board 28 as shown in FIG. 5 is attached to the upper end of the rotating shaft 15 protruding upward from the motor 11M, and is located below the bottom wall 7A of the water tank 7 in the notch 14. Further, the stirrer 26 and the power transmission magnet disc 28 are opposed to each other with the bottom wall 7A interposed therebetween, and a permanent magnet (not shown) of the stirrer 26 is magnetically coupled to the power transmission magnet disc 28 so that It rotates synchronously with the power transmission magnet disc 28 in the same direction. This power transmission magnet board 2
8 is rotated by the rotating shaft 15 of the motor 11M, whereby the motor 11M also serves as a stirring motor for driving the stirrer 26. A stirrer 2 is provided on the upper surface of the bottom wall 7A of the water tank 7.
Four guide plates 31 extending radially around the center 6 are attached. The guide plate 31 has a substantially L-shaped cross section, and protrudes above the bottom wall 7A with a predetermined dimension. Further, the upper edge of the guide plate 31 is formed with two holding portions 32 which are slightly depressed, and the pipes at the lower end portions of the evaporating pipe 16 and the beverage cooling pipe 17 are outer and inner holding portions 32, 32. Each is entered and held. When the compressor 8 of the cooling device 12 is started with the above configuration, the high-temperature and high-pressure refrigerant discharged from the compressor 8 is condensed in the condenser 9 and decompressed by an expansion valve (not shown). Then, the cooling water flows into the evaporating pipe 16 and evaporates, and the cooling water in the water tank 7 is cooled by an endothermic effect generated at that time. By this cooling, an ice layer I is generated around the evaporating pipe 16 in the same manner as described above. The beverage cooling pipe 17 is cooled by the latent heat of the ice layer I. The motor 11 of the condenser cooling fan 11
M is also activated to cool the condenser 9 and to rotate the rotary shaft 15.
The power transmission magnet disk 28 rotates with the rotation of the stirrer 26
To rotate. Due to the rotation of the stirrer 26, the cooling water at the bottom of the water tank 7 is swirled on a horizontal plane and is directed upward by colliding with the guide plate 31, whereby the inner surface of the peripheral wall is rotated inside the water tank 7. A water flow that rises and descends in the center of the water tank 7 will be generated. Thereby, the cooling water in substantially the entire area in the water tank 7 is uniformly cooled, and the cooling effect of the beverage cooling pipe 17 is improved. When the cock 4 is opened in such a state, the beer in the beverage tank 2 is extruded into the beverage pipe 9 by pressurization from the carbon dioxide gas cylinder 3 not shown in FIG. 1, and then flows into the beverage cooling pipe 17. , And is extracted from the cock 4 by passing therethrough. The extracted beer is a beverage cooling pipe 17
In the process of passing through the inside, it is instantaneously cooled from the wall surface, and the temperature becomes low enough for drinking and is extracted from the cock 4. Next, when cleaning the inside of the beverage cooling pipe 17, it is removed from the pipes 18 and 19 at the joints 21 and 22, and the beverage cooling pipe 17 is lifted and taken out of the water tank 7. At this time, since the stirrer and the mounting plate do not exist at the upper part of the water tank 7 as in the related art, there is no need to disassemble and remove the stirrer and the mounting plate, and the work of removing the beverage cooling pipe 17 can be performed smoothly. In addition, when the cleaned beverage cooling pipe 17 is reassembled, the beverage cooling pipe 17 can be temporarily held and positioned by the holding portion 32 of the guide plate 31, so that the assembling work of the beverage cooling pipe 17 is also performed. As a result, the maintenance work on the beverage cooling pipe 17 becomes extremely simple and easy as a whole. A motor 11M for driving the stirrer 26
Since the motor 11M is below the water tank 7, the motor 11M is hardly cooled by the cooling water in the water tank 7, and therefore, a leakage fault or the like due to dew condensation unlike the related art is unlikely to occur. In particular, in the embodiment, since the motor 11M for driving the condenser cooling fan 11 is also used as the stirring motor, the number of parts is reduced, and
It will save energy. Further, since the motor 11M is located in the vicinity of the compressor 8 and the condenser 9 as heat generating elements, the occurrence of dew condensation is further suppressed. Next, FIG. 7 shows another configuration of the beverage supply device 1. 7 that are the same as those in FIGS. 1 to 6 are the same. In this case, the stirrer 26 and the guide plate 31 are removed, and instead, a rotating body 35 having a permanent magnet is rotatably mounted at the same position on the upper surface of the bottom wall 7A of the water tank 7. The rotating shaft (not shown) of the rotating body 35 is on the same axis as the rotating shaft 15 of the motor 11M, and the permanent magnet is also magnetically coupled to the power transmission magnet plate 28 below the water tank 7, and the power is supplied by the motor 11M. Transmission magnet board 2
8 is rotated in synchronization with the rotation. Further, a shaft 36 extending upward near the center of the winding of the beverage cooling pipe 17 is coaxially attached to the rotating body 35, and a propeller-like stirring blade 37 is attached to the tip of the shaft 36. I have. The stirring blade 37 is located in the middle of the water tank 7 above the rotating body 35, and is rotated together with the shaft 36 as the rotating body 35 rotates. By the rotation of the stirring blade 37, a water flow which rises while rotating the inner surface of the peripheral wall as shown by an arrow in FIG. 7 and descends at the center of the water tank 7 is generated in the water tank 7, whereby the cooling water is discharged. The cooling is performed uniformly over substantially the entire area, and the cooling effect of the beverage cooling pipe 17 is improved. Also in this case, the stirrer and the mounting plate do not exist at the upper part of the water tank 7, so that the beverage cooling pipe 1
The maintenance work of No. 7 is easy as described above. Similarly, since the motor 11M for driving the rotating body 36 is below the water tank 7, it is difficult for the motor 11M to be cooled from the cooling water in the water tank 7, so that a conventional leakage fault due to dew condensation hardly occurs. . In the embodiment, the stirrer 26 and the guide plate 31 are provided on the upper surface of the bottom wall 7A of the water tank 7, but the invention is not limited thereto.
It may be provided on the inner surface of the side wall of the water tank 7. Further, in the embodiment, the present invention is applied to the beverage supply device that extracts beer, but the present invention is not limited thereto, and the present invention is effective for a beverage supply device that extracts various beverages such as juice. As described above in detail, according to the present invention, the stirrer is provided in the water tank, and the stirring motor is located outside the water tank. In addition, the stirring motor is hardly cooled from the cooling water in the water tank. Therefore, maintenance work such as cleaning of the beverage cooling pipe can be performed extremely smoothly, and occurrence of a failure due to condensation on the stirring motor can be suppressed. Further, since the water flow from the stirrer collides with the guide plate and flows toward the inside of the water tank, it is possible to stir the cooling water in substantially the entire area of the water tank uniformly.
The cooling effect of the beverage cooling pipe can be improved. Furthermore, the beverage cooling pipe is temporarily held by the guide plate, and the positioning when the beverage cooling pipe is mounted is facilitated, so that the mounting operation after assembling the beverage supply device or after the maintenance operation can be performed smoothly. Become like

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a vertical sectional side view of a beverage supply device of the present invention. FIG. 2 is a perspective view of the beverage supply device of the present invention. FIG. 3 is a plan view of a water tank. FIG. 4 is a lower longitudinal side view of a water tank. FIG. 5 is a perspective view of a power transmission magnet board. FIG. 6 is a perspective view of a stirrer. FIG. 7 is a vertical sectional side view of a beverage supply device having another configuration. FIG. 8 is a vertical sectional side view of a conventional beverage supply device. FIG. 9 is a diagram showing an internal configuration of a conventional beverage supply device. [Description of Signs] 1 beverage supply device 2 beverage tank 4 cock 7 water tank 11M motor 12 cooling device 15 rotating shaft 16 evaporating pipe 17 beverage cooling pipe 26 stirrer 28 power transmission magnet board 35 rotating body 36 shaft 37 stirring blade

Claims (1)

(57) Claims : A cooling water is stored, a beverage cooling pipe is arranged in a water tank cooled by a cooling device, and the beverage stored in the beverage tank is transferred to the beverage cooling pipe. In the beverage supply apparatus for extracting by passing through the inside, a stirrer provided rotatably in the water tank, having a magnet, and provided outside the water tank, the rotation axis is the same axis as the rotation axis of the stirrer A stirring motor disposed so as to be located on a core, a power transmission magnet disk attached to a rotation shaft of the stirring motor, and positioned outside the water tank and magnetically coupled to a magnet of the stirrer; A guide plate extending radially around the stirrer, provided with a guide plate provided in the water tank and protruding inward of the water tank, and a holding portion for holding a beverage cooling pipe is formed at an edge of the guide plate. Beverage supply device.