JP4127136B2 - Beverage supply equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a beverage supply apparatus, and is particularly applied to a beverage dispenser, a cup-type beverage vending machine, and the like, for supplying a beverage obtained by diluting a raw material supplied from a BIB (Bag In Box) or syrup tank with dilution water. The present invention relates to a beverage supply apparatus.
[0002]
[Prior art]
A conventional beverage supply apparatus includes a cooling water tank that stores cooling water cooled to a predetermined temperature by a refrigeration apparatus and cools dilution water and syrup passing through a cooling pipe immersed in the cooling water, and the cooling water tank A cooling water feed pump disposed coaxially with a stirring motor that rotationally drives a cooling water stirring blade that stirs the cooling water is provided inside, and when the stirring motor rotates, cooling water is sent from the cooling water delivery pump, Cooling water in the cooling water tank is circulated through a cooling water circulation line through a cooling pipe provided in the refrigerator that keeps the BIB cold, and after cooling the refrigerator, the cooling water tank is returned to the cooling water tank (for example, Patent Document 1). reference.).
[0003]
[Patent Document 1]
JP 2001-247194 (3rd page, Fig. 1)
[0004]
[Problems to be solved by the invention]
In the conventional beverage supply apparatus described above, the cooling water circulates in the cooling water tank, and the cooling water sent out by the cooling water delivery pump repeatedly returns to the cooling water tank. Therefore, the cooling water stored in the cooling water tank is contaminated with the passage of time, and if used continuously, there is a risk of causing corruption. Further, if such a state is left as it is, there is a problem that dirt may adhere to the inner wall surface of the cooling water tank, the outer surface of the cooling pipe, the inside of the cooling water delivery pump, or the inner surface of the cooling pipe, and the cooling performance may be deteriorated.
The present invention is intended to solve the problems of such a conventional configuration, eliminates dirt and spoilage of the cooling water in the cooling water tank, and constantly cools the beverage to a moderate temperature and stabilizes the beverage. An object of the present invention is to realize a beverage supply device capable of supplying quality while maintaining quality.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, a beverage supply device according to claim 1 of the present invention stores cooling water cooled by a refrigeration device and cools drinking water passing through a cooling pipe immersed in the cooling water. a cooling water tank, and the cooling water tank to a water supply valve for supplying the cooling water, and the drain for draining the cooling water of the cooling water tank valve, and the water level detecting means for detecting a variation in the water level of the cooling water in the cooling water tank, wherein In a beverage supply apparatus comprising a cooling water stirring blade for flowing cooling water and maintaining a uniform temperature ,
After stopping the rotation of the cooling water stirring blade, the drain valve is opened to drain the cooling water in the cooling water tank, and after the drain valve is closed, the water supply valve is opened to supply the cooling water to the cooling water tank And a control means for controlling the cooling water stirring blade to rotate after closing the water supply valve based on a signal output from the water level detecting means.
[0006]
According to the first aspect of the present invention, the cooling water is completely renewed while preventing the cooling water from being scattered, so that the cooling water in the cooling water tank is not contaminated or rotted. A beverage supply device that can cool and maintain a stable beverage quality by always cooling the beverage to a moderate temperature by preventing dirt from adhering to the inside and the inner surface of the cold insulation pipe Can be realized.
Moreover, the drink supply apparatus which concerns on Claim 2 of this invention sends out the said cooling water in the said cooling water tank in the said Claim 1 to the cold insulation pipe for cold-retaining the said BIB provided in the refrigerator which accommodates BIB. When cooling water delivery means is provided and the drain valve is opened to drain the cooling water in the cooling water tank, control is performed so as to stop the cooling water delivery of the cooling water delivery means.
[0007]
According to the second aspect of the present invention, it is possible to prevent the cooling water delivery pump from sucking air together with the cooling water and generating air spots when the cooling water level is lowered.
The beverage supply apparatus according to claim 3 of the present invention is the beverage supply apparatus according to claim 1 or 2, wherein the control means periodically drains and supplies the cooling water based on a signal output from a timer. characterized in that way the.
[0008]
According to invention of Claim 3, it becomes possible to replace | exchange cooling water in the time slot | zone when the restaurant which has installed the drink supply apparatus is not operating .
According to a fourth aspect of the present invention, in the beverage supply apparatus according to the first or second aspect, the control means is based on a signal output from a cooling water supply / drainage switch that instructs drainage and water supply of the cooling water. The cooling water is drained and supplied .
According to the invention of claim 4, since it can be exchanged according to the degree of contamination of the cooling water, the cooling water can be saved.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 shows an example according to an embodiment of the present invention, which eliminates contamination and decay of cooling water in a cooling water tank, constantly cools the beverage to a moderate temperature, and supplies a stable beverage quality. It is a cross-sectional side view which shows schematic structure of the drink supply apparatus which can do.
As shown in FIG. 1, the beverage supply device 1 has a cooling water tank 13 that stores cooling water 12 that is cooled by the refrigeration device 11, and cooling that is immersed in the cooling water 12 to cool syrup and dilution water (drinking water). A cooling device 10 having a pipe 14 and a refrigerator 42 that keeps a BIB 41 that contains beverage ingredients, and a syrup or dilution that is cooled and supplied after passing through the cooling pipe 14 with the ingredients supplied from the BIB 41. The dispenser main body 40 which forms a drink with water, and the drink piping 30 which supplies the syrup and dilution water which passed the cooling pipe 14 to the dispenser main body 40 are comprised.
[0011]
The refrigeration apparatus 11 includes a compressor, a condenser, a cooling fan, an evaporator, and the like. The evaporator is installed in the cooling water tank 13, and the refrigerant is evaporated when the refrigerant compressed by the compressor and condensed by the condenser circulates. In doing so, the cooling water 12 is cooled by exchanging heat with the cooling water 12. The cooling pipe 14 is immersed in the cooling water 12. When diluted water for forming a beverage by diluting the beverage raw material syrup or the beverage raw material passes through the cooling pipe 14, The heat exchange is carried out in order to cool the syrup and dilution water. The syrup is stored in a syrup tank (not shown) and pushed out to the cooling pipe 14 with the pressure of carbon dioxide supplied from a carbon dioxide cylinder (not shown). Dilution water includes carbonated water for diluting carbonated beverages and drinking water for diluting non-carbonated beverages. Carbonated water is formed by dissolving carbon dioxide supplied from a carbon dioxide gas cylinder in drinking water, and cooled with carbon dioxide pressure. The drinking water is supplied to the pipe 14 and is pumped by a water pump (not shown) and supplied to the cooling pipe 14.
[0012]
The cooling water tank 13 is provided with cooling water stirring blades 15 that flow the cooling water 12 to maintain a uniform temperature and efficiently cool the syrup and dilution water in the cooling pipe 14, and are rotated by the stirring motor 16. Driven. Further, a cooling water delivery pump 17 (which constitutes a cooling water delivery means is constituted by the agitation motor 16 and the cooling water delivery pump 17) is disposed coaxially with the agitation motor 16, and when the agitation motor 16 rotates, a cooling water suction port is provided. The cooling water 12 is sucked from 18 and the cooling water 12 is pumped from the cooling water delivery port 19.
The liquid level of the cooling water 12 is provided with a water level sensor 20 (water level detection means) that detects the vertical movement of the water level of the cooling water 12 and outputs a signal to the control unit 100 (described later). The float 21 moves up and down in conjunction with each other, and the water level detection unit 22 detects the vertical movement of the float 21 and outputs a signal to the control unit 100.
[0013]
In the above embodiment, the float type water level sensor is used as the water level detection means, but the present invention is not limited to this. In other words, any device capable of detecting a vertical movement of the water level of the cooling water 12 and outputting a signal may be used. For example, an electrode-type water level sensor may be used.
A drain valve 23 is provided on the bottom surface of the cooling water tank 13 for draining the cooling water 12 by a signal output from the control unit 100, and the cooling water 12 is output on the top surface of the cooling water tank 13 by a signal output by the control unit 100. A water supply valve 24 for supplying water is provided.
The dispenser main body 40 has leg portions 49 fixed at the four corners of the lower surface, and is placed on a table or the like via the leg portions 49. The front door 43 has a beverage selection button 44 corresponding to the type of beverage to be sold. By pressing this beverage selection button 44, syrup and dilution water supplied from the BIB 41 corresponding to the beverage selection button 44 or the syrup tank are supplied. Supplied. The refrigerator 42 is provided with a cold insulation pipe 45 for keeping the BIB 41 cold, and is cooled by the cooling water 12 pumped by the cooling water delivery pump 17. In addition, a tube pump 46 that pumps the syrup of the BIB 41 is disposed below the refrigerator 42, and a dilution water nozzle that supplies dilution water is provided adjacent to the tube pump 46. Further, a beverage mixing valve (see FIG. 5) that forms a beverage by mixing the syrup and dilution water stored in the syrup tank and passing through the cooling pipe 14 with the pressure of carbon dioxide supplied from a carbon dioxide cylinder. Not shown). When the beverage selection button 44 is pressed, the syrup of the BIB 41 or syrup tank, carbonated water or drinking water is poured into the cup 48 placed on the cup stage 47, and becomes a carbonated beverage or a non-carbonated beverage.
[0014]
The beverage piping 30 supplies the cooling water 12 delivered by the cooling water delivery pump 17 to the cold insulation pipe 45 and cools the refrigerator 42, and the cooling water delivery pipe 31 for cooling the refrigerator 42 to cool the refrigerator 42. The cooling water circulation pipe 32 for circulating the cooling water to the cooling water tank 13 and the drinking water such as syrup, carbonated water and drinking water that has passed through the cooling pipe 14 are supplied to the dilution water nozzle and the beverage mixing valve of the dispenser main body 40. A plurality of drinking water supply pipes 33 to be supplied are provided, and a cooling pipe 34 is disposed so as to surround the cooling water delivery pipe line 31, the cooling water circulation pipe line 32, and the plurality of drinking water supply pipe lines 33. The cooling pipe 34 is formed of a resin pipe and a heat insulating material covering the outside. Further, the cooling water recirculation conduit 32 has its tip opening 35 opened in the cooling pipe 34, and the cooling water 12 circulated from the cold insulation pipe 45 is discharged into the cooling pipe 34. And the cooling water 12 discharged in the cooling pipe 34 flows down the clearance gap formed between the cooling water delivery pipe line 31 in the cooling pipe 34 and the some drinking water supply pipe line 33, and a plurality of drinking water The syrup and dilution water in the supply pipe 33 are cooled or prevented from warming, and flowed into the cooling water tank 13 from the open end 36 of the cooling pipe 34 and circulated.
[0015]
In this way, the cooling water 12 stored in the cooling water tank 13 is pumped by the cooling water delivery pump 17, supplied to the cold insulation pipe 45 via the cooling water delivery pipe 31, and the refrigerator 42 is cooled, so that the BIB 41 is Keep cool. Then, the cooling water 12 that has been supplied to the cold insulation pipe 45 and has cooled the refrigerator 42 is discharged into the cooling pipe 34 from the tip opening 35 of the cooling water circulation pipe line 32. The cooling water 12 discharged in the cooling pipe 34 flows down gaps formed between the cooling water delivery pipe 31 and the plurality of drinking water supply pipes 33 in the cooling pipe 34 to supply a plurality of drinking water. Since the syrup and dilution water in the pipeline 33 are cooled or prevented from warming, the beverage supply in the beverage supply device 1 is interrupted, and the syrup and dilution water stays in the drinking water supply pipeline 33, or The syrup and dilution water in the drinking water supply pipe 33 always pass through the cooling pipe 34 even if the syrup beverage is not supplied and the syrup continues to stay in the drinking water supply pipe 33. Since cooling or warming is prevented by the cooling water 12 flowing down, the beverage supplied by the beverage supply device 1 can always be provided while maintaining a stable beverage quality cooled to an appropriate temperature.
[0016]
Furthermore, since the drinking water supply pipe line 33 is insulated from the atmosphere by insulating the cooling pipe 34 from the air, it is cooled by heat exchange through the cooling pipe 14 immersed in the cooling water 12. Since syrup and dilution water do not warm up while moving from the cooling device 10 to the dispenser main body 40, heat loss can be reduced. Further, since the syrup and dilution water supplied to the dispenser body 40 are always supplied in a cooled state, it is not necessary to provide a cooling water tank or a freezing device for cooling the syrup and dilution water in the dispenser body 40. The dispenser body 40 can be made compact.
[0017]
FIG. 2 shows a control block diagram of the beverage supply device 1 according to the present invention, an activation switch 80 that outputs an activation signal of the beverage supply device 1, and a water level that detects a vertical movement of the cooling water 12 and outputs a water level signal. The cooling water 12 is cooled by operating with the sensor 20, the beverage selection button 44 for outputting a beverage selection signal, the control unit 100 (control means) for controlling the supply of the beverage, and the signal output by the control unit 100. A refrigerating device 11, a stirring motor 16 that rotationally drives the cooling water stirring blade 15 and the cooling water delivery pump 17, a drain valve 23 that drains the cooling water 12 in the cooling water tank 13, and a water supply valve that supplies the cooling water 12 to the cooling water tank 13 24, a memory 102 for storing control data of each part of the beverage supply device 1 and a timer 103 for counting time by counting clocks generated by a reference clock generator (not shown).
[0018]
The configuration of the beverage supply device 1 according to the present invention that supplies the BIB 41 or the syrup of the syrup tank and carbonated water or drinking water by supplying carbonated water or drinking water has been described above, and the operation thereof will be described next.
In the above configuration, as shown in FIG. 5 (a), the cooling water 12 in the cooling water tank 13 is supplied with a specified amount (the water supply valve 24 is opened by the signal output from the control unit 100 to supply water), and the water level detection unit 22 is supplied. The water level detection piece 22a detects the float 21 and the water supply valve 24 is closed based on the signal output from the water level sensor 20 to stop water supply), and the beverage supply device 1 cooled by the refrigeration apparatus 11 When the beverage selection button 44 is pressed and a non-carbonated beverage such as oolong tea or juice is selected, the syrup in the BIB 41 cooled in the refrigerator 42 is fed by the tube pump 46 and supplied. In addition, potable water is pumped by a water pump (not shown), cooled through the cooling pipe 14, and supplied from the dilution water nozzle. The non-carbonated beverage syrup and drinking water supplied in this manner are poured into the cup 48 to obtain a non-carbonated beverage cooled to a suitable temperature. On the other hand, when the beverage selection button 44 for selecting a carbonated beverage is pressed, the syrup is fed from the syrup tank by the pressure of the carbon dioxide gas supplied from the carbon dioxide gas cylinder, cooled through the cooling pipe 14, and supplied from the carbon dioxide gas cylinder. Formed by dissolving the carbon dioxide gas in drinking water, and the carbonated water cooled and supplied through the cooling pipe 14 with the pressure of carbon dioxide gas is supplied to the beverage mixing valve to form a carbonated beverage cooled to a suitable temperature. And poured into the cup 48.
[0019]
The flowchart of FIG. 3 drains the dirty cooling water 12 in the cooling water tank 13 of the beverage supply apparatus 1 as an example showing the embodiment of the present invention, supplies new cooling water 12, and supplies the cooling water tank 13. The control method which eliminates the stain | pollution | contamination and decay of the cooling water 12 is shown. In step 200 of FIG. 3, control of the control unit 100 is started. Specifically, the signal output to the stirring motor 16 is stopped, the rotation of the cooling water stirring blade 15 and the cooling water delivery pump 17 are stopped (step 210), and the drain valve 23 is opened. Then, drainage of the cooling water 12 in the cooling water tank 13 is started (step 220). When drainage of the cooling water 12 in the cooling water tank 13 is completed (the drainage of the cooling water 12 is a method for confirming the completion of drainage by detecting the water level of the cooling water 12 with a water level sensor, and also based on the experimental results. The time is stored in a timer, and the drain valve 23 is closed (by a method of managing by time, etc.) to stop draining (step 230). Next, the water supply valve 24 is opened to start water supply (step 240). When the water level detection piece 22a of the water level detection unit 22 detects the rise of the float 21 interlocked with the water level of the cooling water 12 and the water level sensor 20 outputs a signal to the control unit 100 (step 250), the control unit 100 detects the water level sensor 20. Based on the signal output by the controller, it is determined that the specified amount of cooling water 12 has been supplied, and the water supply valve 24 is closed (step 260). Next, when a signal is output to the stirring motor 16 and rotated, the cooling water stirring blade 15 starts to rotate, and the cooling water delivery pump 17 starts sending the cooling water 12 (step 270). Then, in step 280, the control for eliminating the dirt and spoilage of the cooling water 12 in the cooling water tank 13 is terminated. The cooling water 12 is drained after the signal output to the stirring motor 16 is stopped and the rotation of the cooling water stirring blade 15 and the cooling water delivery pump 17 are stopped. This is to prevent the cooling water delivery pump 17 from sucking air together with the cooling water 12 and generating air spots when the water level of the cooling water 12 is lowered.
[0020]
In this way, when the dirty cooling water 12 in the cooling water tank 13 is completely drained and then supplied with new cooling water 12, all the cooling water 12 can be renewed. Dirt and spoilage are eliminated, and dirt does not adhere to the inner wall surface of the cooling water tank 13, the outer surface of the cooling pipe 14, the inside of the cooling water delivery pump 17, or the inner surface of the cold insulation pipe 45, thereby reducing the cooling performance. It is possible to realize a beverage supply device that can cool and maintain a stable beverage quality.
In addition, the control which drains the dirty cooling water 12 in the cooling water tank 13, supplies new cooling water 12, and eliminates the dirt and decay of the cooling water 12 in the cooling water tank 13 makes the memory 102 memorize time. Based on the signal output from the timer 103 that measures time, the drainage valve 23 and the water supply are periodically performed by the control unit 100 (for example, a time period when the restaurant where the beverage supply device 1 is installed is not open). A signal is output to the valve 24 so that the cooling water 12 is drained and supplied. By controlling in this way, it becomes possible to replace the cooling water 12 in a time zone when the restaurant where the beverage supply device 1 is installed is not operating.
[0021]
Further, a cooling water supply / drainage switch (not shown) for instructing drainage and water supply of the cooling water 12 is provided, and the control unit 100 sends a signal to the drainage valve 23 and the water supply valve 24 based on a signal output from the cooling water supply / drainage switch. You may make it output and drain the cooling water 12 and supply water. By controlling in this way, the cooling water 12 can be exchanged according to the degree of contamination of the cooling water 12, so that the cooling water 12 can be saved.
The flowchart of FIG. 4 supplies new cooling water 12 while draining the dirty cooling water 12 in the cooling water tank 13 of the beverage supply apparatus 1 as an example showing another embodiment of the present invention. The control method which eliminates the stain | pollution | contamination and decay of the cooling water 12 in 13 is shown. In step 300 of FIG. 4, the control of the control unit 100 is started. Specifically, after the drain valve 23 is opened and drainage of the cooling water 12 in the cooling water tank 13 is started (step 310) (when the water level of the cooling water 12 detected by the water level sensor becomes a predetermined water level, Based on the experimental results, the time required for draining to a predetermined water level is stored in a timer and managed by time, etc.), and the water supply valve 24 is opened to start water supply (step 320). Next, the drain valve 23 is closed to stop draining (step 330). And if the water level detection piece 22a of the water level detection part 22 detects the raise of the float 21 interlock | cooperated with the water level of the cooling water 12, and the water level sensor 20 outputs a signal to the control part 100 (step 340), the control part 100 will be a water level. Based on the signal output from the sensor 20, it is determined that the specified amount of cooling water 12 has been supplied, and the water supply valve 24 is closed (step 350). Then, in step 360, the control for eliminating the dirt and spoilage of the cooling water 12 in the cooling water tank 13 is terminated.
[0022]
In step 320, the water supply valve 24 is opened to start water supply, and in step 330, the drain valve 23 is closed to stop draining. In step 320, the drain valve 23 is closed to stop draining. In step 330, the water supply valve 24 may be opened to start water supply.
In this way, when new cooling water 12 is supplied while draining the dirty cooling water 12 in the cooling water tank 13, a predetermined amount of cooling water 12 remains in the cooling water tank 13. It is possible to replace the cooling water 12 while carrying out the process, and the dirt is attached to the inner wall surface of the cooling water tank 13, the outer surface of the cooling pipe 14, the inside of the cooling water delivery pump 17, and the inner surface of the cooling pipe 45, thereby reducing the cooling performance Therefore, it is possible to realize a beverage supply device that can always cool a beverage to a suitable temperature and maintain and supply a stable beverage quality. The control unit 100 periodically outputs signals to the drain valve 23 and the water supply valve 24 based on a signal output from the timer 103 that stores the time in the memory 102 and measures the time. Control to supply water. Further, a cooling water supply / drainage switch for instructing drainage and water supply of the cooling water 12 may be provided, and drainage and water supply of the cooling water 12 may be performed by a signal output from the cooling water supply / drainage switch.
[0023]
FIG. 5 is an explanatory diagram for explaining the fluctuation of the water level of the cooling water 12, (a) is the water level during the normal operation state of the beverage supply device 1, and (b) is the water level sensor 20 in step 320. When the detected water level of the cooling water 12 reaches the predetermined water level (L1) and the water supply valve 24 is opened to start water supply, (c) shows that the water level of the cooling water 12 is the cooling water suction port 18 of the cooling water delivery pump 17. It shows a time when it has dropped to a position of dimension L2 (for example, 10 to 30 mm). When the drain valve 23 and the water supply valve 24 are opened and closed in time, if the drainage amount of the drain valve 23 is larger than the water supply amount of the water supply valve 24, the water level is too low and the cooling water delivery pump 17 is aired together with the cooling water 12. The water level detection piece 22c of the water level detection unit 22 detects a decrease in the float 21 that is interlocked with the water level of the cooling water 12, and the water level sensor 20 outputs a signal to the control unit 100. Based on the signal output from the water level sensor 20, the control unit 100 determines that the water level of the cooling water 12 has decreased from the cooling water suction port 18 of the cooling water delivery pump 17 to a water level that exceeds a predetermined dimension L 2, and sends it to the stirring motor 16. When the output signal is stopped and the cooling water delivery pump 17 is controlled to stop delivery of the cooling water 12, the cooling water delivery pump 17 sucks air together with the cooling water 12 and the air is It is possible to prevent the cause.
[0024]
【The invention's effect】
As described above, according to the present invention, the drain valve is opened to drain the cooling water in the cooling water tank, and after the drain valve is closed, the water supply valve is opened to supply the cooling water to the cooling water tank, and the water level is detected. By providing a control means to control the water supply valve to close based on the signal output by the means, the cooling water in the cooling water tank is free from dirt and spoilage, and the beverage is always cooled to a suitable temperature and stable beverage quality It is possible to realize a beverage supply device that can maintain and supply food.
[Brief description of the drawings]
FIG. 1 is a cross-sectional side view showing a schematic configuration of a beverage supply apparatus as an example showing an embodiment of the present invention.
FIG. 2 is a control block diagram of a beverage supply apparatus as an example showing an embodiment of the present invention.
FIG. 3 is a flowchart showing a method for controlling a beverage supply apparatus as an example showing an embodiment of the present invention.
FIG. 4 is a flowchart showing a method for controlling a beverage supply apparatus as an example showing another embodiment of the present invention.
FIGS. 5A and 5B are explanatory diagrams for explaining the fluctuation of the cooling water level, in which FIG. 5A is a water level when the beverage supply device is in a normal operating state, and FIG. 5B is a predetermined water level when draining the cooling water; , (C) shows a state where the water level is lowered.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Beverage supply apparatus 10 Cooling apparatus 11 Refrigeration apparatus 12 Cooling water 13 Cooling water tank 14 Cooling pipe 15 Cooling water stirring blade 16 Stirring motor 17 Cooling water delivery pump 18 Cooling water inlet 19 Cooling water outlet 20 Water level sensor 21 Float 22 Water level detection Portion 22a Water level detection piece 22b Water level detection piece 22c Water level detection piece 23 Drain valve 24 Water supply valve 30 Beverage pipe 31 Cooling water delivery pipe 32 Cooling water recirculation pipe 33 Drinking water supply pipe 34 Cooling pipe 35 Tip opening 36 Open end 40 Dispenser body 41 BIB
42 Refrigerator 44 Beverage selection button 45 Cooling pipe 48 Cup 100 Control unit 102 Memory 103 Timer

Claims (4)

Cooling water tank that stores cooling water cooled by a refrigeration system, cools drinking water that passes through a cooling pipe immersed in the cooling water, a water supply valve that supplies cooling water to the cooling water tank, and cooling of the cooling water tank Beverage supply comprising: a drain valve for draining water; a water level detecting means for detecting fluctuations in the level of cooling water in the cooling water tank; and a cooling water stirring blade for causing the cooling water to flow and maintaining a uniform temperature. In the device
After stopping the rotation of the cooling water stirring blade, the drain valve is opened to drain the cooling water in the cooling water tank, and after the drain valve is closed, the water supply valve is opened to supply the cooling water to the cooling water tank The beverage supply device is characterized by further comprising control means for controlling the cooling water stirring blade to rotate after closing the water supply valve based on a signal output from the water level detection means.   The cooling water tank is provided with a cooling water sending means for sending the cooling water to a cold insulation pipe for keeping the BIB provided in the refrigerator that houses the BIB, and the drain valve is opened to supply the cooling water in the cooling water tank. 2. The beverage supply device according to claim 1, wherein when the water is drained, the cooling water sending means is controlled to stop sending the cooling water. The beverage supply device according to claim 1 or 2, wherein the control means periodically drains and supplies the cooling water based on a signal output from a timer . The said control means drains and supplies the said cooling water based on the signal which the cooling water supply / drain switch which instruct | indicates the drainage and the water supply of the said cooling water outputs, It is characterized by the above-mentioned. The beverage supply apparatus described .

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