JPS6253877B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a frozen carbonated beverage dispenser having a relay tank for creating and storing a mixed liquid of syrup, water and carbon dioxide gas for supply to a cooling chamber. In particular, it relates to cleaning of the relay tank.

[Conventional technology]

In this type of dispenser, the relay tank is designed to store a mixed liquid of syrup, water, and carbon dioxide gas, and therefore, from a sanitary standpoint, it is preferable that the relay tank can be cleaned at will. Therefore, conventionally, as disclosed in Utility Model Application Publication No. 57-104889, for example, a first discharge valve was provided in the mixed liquid supply pipe from the relay tank to the cooling chamber, and a first discharge valve was provided in the pipe branching from the mixed liquid supply pipe. A configuration was adopted in which a second discharge valve was provided and a third discharge valve was provided at the top of the relay tank. In the product manufacturing state, only the first discharge valve is opened to enable supply of the mixed liquid to the cooling chamber. On the other hand, in the cleaning state, the first discharge valve is closed to cut off the communication of the mixed liquid to the cooling chamber, the second discharge valve is closed, and the third discharge valve is opened to replace the syrup tank. The relay tank is filled with the cleaning liquid from the attached cleaning liquid tank, and when the cleaning liquid starts to be discharged from the third discharge valve due to the liquid filling, the supply of cleaning liquid from the cleaning liquid tank is stopped, and the second discharge valve is opened. The cleaning liquid was discharged and the relay tank was cleaned.

[Problem that the invention seeks to solve]

Such a configuration not only complicates the structure because it requires a third discharge valve at the top of the relay tank that communicates with the atmosphere, but also increases the number of points where carbon dioxide gas can leak, making maintenance and inspection time-consuming. In addition, there was a problem that the upper part of the relay tank could not be cleaned unless the relay tank was filled with cleaning liquid. Furthermore, in the conventional configuration described above, it is impossible to clean the relay tank during product manufacturing.

Therefore, an object of the present invention is to have a simple structure and easy maintenance.
To provide a frozen carbonated beverage dispenser which does not increase the labor of inspection and allows the upper part of a relay tank to be washed even during product manufacture.

[Means for solving problems]

For this purpose, the present invention provides a method for supplying and mixing syrup liquid in a syrup tank, water in a water storage tank, and carbon dioxide gas in a carbon dioxide gas cylinder into a relay tank having a float therein, and mixing the syrup liquid in the relay tank. , a frozen carbonated beverage dispenser for producing a frozen carbonated beverage by supplying a mixture of water and carbon dioxide gas to a cooling chamber, a syrup supply pipe, a carbon dioxide gas supply pipe, and a water supply pipe provided on the upper plate of the relay tank. a mixed liquid supply pipe for connecting the relay tank and the cooling chamber for transferring the mixed liquid; and a mixed liquid supply pipe connected to the mixed liquid supply pipe and switched to selectively communicate with the cooling chamber and its outlet. In the product manufacturing state,
The valve device is communicated with the cooling chamber side, and in the cleaning state, the valve device is communicated with the outlet side, and water supplied from the water supply pipe is injected onto the upper surface of the float. The present invention is characterized in that the inside of the relay tank is configured to be cleaned.

Further, in a preferred embodiment of the present invention, a check valve is provided on the syrup supply pipe to prevent washing water from flowing back into the syrup tank in the washing state.

[Effect]

In the product manufacturing state, if the valve device provided on the mixed liquid supply pipe is communicated with the cooling chamber side, the mixed liquid in the joint tank is supplied to the cooling chamber by carbon dioxide gas pressure from the carbon dioxide gas cylinder. When the liquid level of the mixed liquid in the relay tank decreases as the frozen carbonated beverage in the cooling chamber is discharged, the float detects the drop in the liquid level, and fluid from a water storage tank, etc. is supplied to the relay tank. Ru. At this time, the water hits the top surface of the float and scatters, cleaning the inner surface of the top of the relay tank even during product manufacturing.

In addition, when the valve device is switched to the washing state where it communicates with the outlet side, the supply of syrup is stopped and water is supplied to the water storage tank, and then the water in the water storage tank is used as washing water to pass through the water supply pipe to the top of the float. When injected upward, this cleaning water is reflected off the top surface of the float and splashed on the inner surface of the upper part of the relay tank, thereby cleaning the inside of the relay tank, and the water after cleaning is discharged outside from the outlet via the valve device. Ru. in this case,
A check valve prevents wash water from flowing back into the syrup supply pipe.

[Embodiments] Next, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, in which the same reference numerals indicate the same or corresponding parts.

FIG. 1 shows a schematic system diagram of the entire frozen carbonated beverage dispenser according to the present invention, in which carbon dioxide gas from a carbon dioxide gas cylinder 1 is supplied to a carbon dioxide gas supply including a first regulator 2, a first solenoid valve 3, and a second regulator 4. Carbon dioxide gas is supplied to the relay tank 5 via the pipe 1a, and the carbon dioxide gas supply pipe 1a is connected to the syrup tank 7 at the first branch 6 via the branch pipe 6'.

The syrup in the syrup tank 7 is supplied to the relay tank 5 via the syrup supply pipe 7a having the second solenoid valve 8 and the first check valve 9 due to the pressure of the carbon dioxide gas supplied as described above.
Water in the water storage tank 13 is supplied to the water storage tank 13 through a water supply pipe 13a having a second check valve 10, a third regulator 11, and a pump motor 12.

A pressure switch 14 is connected to the carbon dioxide gas supply pipe 1a, and a mixed liquid supply pipe 16 is connected to a discharge port 15 opening in the bottom plate 5a of the relay tank 5. It is connected via a valve 17 to a bottom plate 19 of a cooling chamber 18 . Furthermore, the second branch part 20 of the mixed liquid supply pipe 16 has a second
The discharge valve 21 is connected, and the outlet 2 of the second discharge valve 21
1a is open to the atmosphere, and a cooling chamber 18
A spout valve 22 for taking out the product is provided on the side of the container. Therefore, the first discharge valve 17 and the second
The discharge valve 21 drains the liquid in the relay tank 5 into the cooling chamber 1.
8 and the outlet 21a.

Furthermore, FIG. 2 is an enlarged cross-sectional view of the relay tank 5, and a float 5b having a diameter slightly smaller than the inner diameter of the relay tank 5 is built into the relay tank 5 so as to float above the mixed liquid 5c. The tip of the pipe 13a projects into the upper plate 5d of the relay tank 5 to form an injection port 13b, and the first check valve 9 is disposed between the syrup supply pipe 7a and the upper plate 5d. This float 5b
Since it is a well-known technology, it will not be explained in detail, but
This is a conventional means for detecting the liquid level of the mixed liquid 5c in the relay tank 5, and is designed to send out a request signal for raw material supply from each related tank when the liquid level drops.

In the above configuration, when operating the frozen carbonated beverage dispenser according to the present invention, first, in the product manufacturing state, the first discharge valve 17 of the mixed liquid supply pipe 16 is in the open state, and the second
When the discharge valve 21 is kept closed, the relay tank 5
The mixed liquid inside is supplied to the cooling chamber 18 by the carbon dioxide gas pressure from the carbon dioxide gas cylinder 1. When the liquid level of the mixed liquid 5c in the relay tank 5 decreases as the pouring valve 22 is opened to discharge the frozen carbonated beverage in the cooling chamber 18, the float 5b detects the decrease in the liquid level and releases the frozen carbonated beverage in the cooling chamber 18. 5 is supplied with fluid from a water storage tank 13 or the like. At this time, the water hits the upper surface of the float 5b and scatters, thereby cleaning the upper inner surface of the relay tank 5 even during product manufacture.

When switching to the cleaning state, the first discharge valve 17 is kept closed and the second discharge valve 21 is kept open, and the second solenoid valve 8 is closed to stop supplying the syrup. After supplying water,
When the pump motor 12 is operated, the water storage tank 1
The water in the tank 3 is sprayed onto the top surface of the float 5b from the injection port 13b through the water supply pipe 13a as cleaning water, and this cleaning water is reflected by the top surface of the float 15b and splashed on the top inner surface of the relay tank 5. Then, the inside of the relay tank 5 is cleaned, and the water after cleaning is discharged to the outside from the outlet 21a via the second discharge valve 21. In this case, since the first discharge valve 17 is closed, no cleaning water is supplied to the product in the cooling chamber 18, and since there is a check valve 9, no cleaning water is supplied to the syrup supply pipe 7a. No backflow. Further, since the carbon dioxide gas from the carbon dioxide gas cylinder 1 is supplied to the carbon dioxide gas supply pipe 1a under pressure, the washing water will not flow back into the carbon dioxide gas cylinder 1.

[Effects of the Invention] As described above, the frozen carbonated beverage dispenser according to the present invention includes a valve device, that is, the first and second discharge valves 17 and 21 in the mixed liquid supply pipe 16 from the relay tank 5 to the cooling chamber 18. In addition, a carbon dioxide gas supply pipe 1a, a syrup supply pipe 7a, and a water supply pipe 13a are provided on the upper plate 5d of the relay tank 5 having the float 5b, and in particular, water from the water supply pipe 13a is transferred to the float 5b. Since the spray is designed to be sprayed onto the top surface, the cleaning operation in the cleaning state can be performed with a simple structure without adding any cleaning elements other than the first and second discharge valves mentioned above. can do. Furthermore, even during product manufacturing, carbon dioxide gas, syrup liquid, and water are supplied to the relay tank 5 as the level of the mixed liquid in the relay tank 5 decreases. As described above, it is sprayed onto the upper surface of the float 5b and scattered around, thereby cleaning the inner upper surface of the relay tank 5.

Further, in a preferred embodiment of the present invention, the syrup supply pipe is provided with a check valve, so that the relay tank can be cleaned without discarding the syrup in the syrup supply pipe.

[Brief explanation of the drawing]

FIG. 1 is a schematic system diagram showing the overall configuration of a frozen carbonated beverage dispenser according to the present invention, and FIG.
FIG. 2 is an enlarged sectional view of a relay tank used in the dispenser of FIG. 1; 1... Carbon dioxide gas cylinder, 1a... Carbon dioxide gas supply pipe,
5... Relay tank, 5b... Float, 5c... Mixed liquid, 5d... Top plate, 7... Syrup tank, 7a... Syrup supply pipe, 9... Check valve, 13... Water storage tank,
13a...Water supply pipe, 16...Mixed liquid supply pipe, 17...
First discharge valve (valve device), 18...cooling chamber, 21a...
Outlet, 21...second discharge valve (valve device).

Claims (1)

[Scope of Claims] 1. Syrup liquid in a syrup tank, water in a water storage tank, and carbon dioxide gas in a carbon dioxide gas cylinder are supplied and mixed into a relay tank having a float inside, and the syrup liquid in the relay tank, In a frozen carbonated beverage dispenser that produces a frozen carbonated beverage by supplying a mixture of water and carbon dioxide gas to a cooling chamber, a syrup supply pipe, a carbon dioxide gas supply pipe, and a water supply pipe provided on the upper plate of the relay tank. , a mixed liquid supply pipe for connecting the relay tank and the cooling chamber for transferring the mixed liquid; and a mixed liquid supply pipe connected to the mixed liquid supply pipe and switched to selectively communicate with the cooling chamber and its outlet. In a product manufacturing state, the valve device communicates with the cooling chamber side, and in a cleaning state, the valve device communicates with the outlet side, and water is supplied from the water supply pipe to the float. A frozen carbonated beverage dispenser characterized in that the inside of the relay tank is cleaned by spraying onto the top surface of the frozen carbonated beverage dispenser. 2. The frozen carbonated beverage dispenser according to claim 1, further comprising a check valve provided in the syrup supply pipe.