JP2006347557A - Beverage dispenser - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a beverage dispenser which can sterilize a passage for feeding a beverage to each storage section from a beverage container and the inside of each storage section in a short period of time, and in addition, can save energy without deteriorating the taste of the beverage in the storage section without missing a vending opportunity. <P>SOLUTION: When a first electromagnetic valve 75 is closed, and at the same time, a second electromagnetic valve 60b, a third electromagnetic valve 73a and a fourth electromagnetic valve 74c are respectively opened, a passage which can circulate a heated beverage from a hot water tank 20 to each reservoir 10 is formed by communication pipes 71, 72, 73 and 74. Moreover, since each reservoir 10 and the hot water tank 20 are communicated by a first feeding pipe 60, the beverage which has been heated by the hot water tank 20 circulates to the first feeding pipe 60 when a pump 62 is operated, and the inside of the first feeding pipe 60 can be heat-sterilized. In the meantime, the inside of a cooling tank is sterilized by a black light 33 as well. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a beverage dispenser in which, for example, a beverage container containing mineral water is detachably attached, and mineral water supplied from the beverage container is heated or cooled to be arbitrarily discharged from a discharge valve.

  Conventionally, as this kind of beverage dispenser, a beverage container is detachably attached with a beverage outlet directed downward, and a first storage portion capable of heating and storing a beverage supplied from the beverage container; The second storage part that can cool and store the beverage supplied from the beverage container, and the ultraviolet irradiator that irradiates the second storage part with ultraviolet rays, and sterilizes the second storage part with ultraviolet rays. Is known (for example, see Patent Document 1).

In addition, as other beverage dispensers, the same beverage injection portion, the first storage portion and the second storage portion as described above, the first communication pipe for distributing the beverage from the beverage injection portion to the first storage portion, and the first communication Provided in the middle of the third communication pipe for distributing the beverage from the beverage injection part side of the pipe to the second storage part, the third communication pipe for distributing the beverage from the first storage part to the second storage part, And a pump for circulating the beverage in the third communication pipe to the second storage section side, and by circulating the beverage heated in the first storage section by the pump to the second storage section and each communication pipe, A device in which the inside of each unit and each communicating tube is sterilized by heating is known (for example, see Patent Document 2).
JP 2000-85893 A JP-A-11-190577

  However, in the former beverage dispenser, the inside of the first reservoir is sterilized by the heated beverage and the inside of the second reservoir is sterilized by the ultraviolet irradiator. There was a problem that the flow path for supplying the liquid could not be sterilized.

  In the latter beverage dispenser, the inside of each reservoir and the inside of each communication pipe can be sterilized by heating. However, when sterilizing by heating, it is necessary to heat the beverage that has been cooled in the second reservoir. There was a problem that it took a long time to complete. In addition, since the beverage once heated is cooled again by the second reservoir after the heat sterilization, there is also a problem that the taste of the beverage in the second reservoir is deteriorated. Furthermore, since the beverage in the second reservoir is repeatedly cooled and heated, the beverage cannot be discharged until the beverage is cooled to a temperature suitable for sale, and sales are missed due to interruption of sale. There was also a problem. In addition, there is a problem that it is contrary to energy saving by repeated cooling and heating.

  The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to sterilize a flow path for supplying a beverage from a beverage container to each reservoir and each reservoir in a short time. Furthermore, it is an object of the present invention to provide a beverage dispenser that can save energy without deteriorating the taste of the beverage in the reservoir and without missing a sales opportunity.

  In order to achieve the above-mentioned object, the present invention provides a beverage injection part to which at least one beverage container is detachably attached, a first storage part capable of heating and storing a beverage supplied from the beverage container, and a beverage container. A second dispenser that can cool and store the beverage to be supplied, and can dispense beverages from each reservoir, so that the beverage can be distributed from the beverage injection part to the first reservoir. A first flow path; a second flow path capable of flowing a beverage from the first flow path to the second storage section; a third flow path capable of flowing a beverage from the first storage section to the beverage injection section; A fourth flow channel capable of distributing a beverage from the section to the third flow channel, a beverage flow pump provided in at least one of the first flow channel and the third flow channel, and the second flow channel and the fourth flow channel. An on-off valve capable of opening and closing at least one of the two and the second reservoir can be irradiated with ultraviolet rays And external illuminator, by operating the pump causes closes the opening and closing valve, the third flow path, and a control means for circulating the beverage in the first reservoir to a dispensing unit and the first flow path.

  As a result, by closing the on-off valve and operating the pump by the control unit, the beverage in the first storage unit is circulated through the third flow channel, the beverage injection unit, and the first flow channel. Since the beverage is heated, the beverage heated by the first reservoir can be circulated through the first flow path, the third flow path, and the beverage injection section to perform heat sterilization. Moreover, since the inside of the second reservoir is irradiated with ultraviolet rays by the ultraviolet irradiator, the inside of the second reservoir can be sterilized. Furthermore, since at least one of the second flow path and the fourth flow path is closed by the on-off valve, the heated beverage that is circulated by the pump does not flow into the second reservoir, and the pump uses the second flow path. The beverage in the storage part does not flow out to the third flow path.

  The present invention also provides a beverage injection part to which at least one beverage container is detachably attached, a first storage part capable of heating and storing a beverage supplied from the beverage container, and a beverage supplied from the beverage container. A second dispenser that can be cooled and stored, and a beverage dispenser that can arbitrarily discharge beverage from each reservoir, and a first flow path that allows the beverage to flow from the beverage injection part to the first reservoir. A second flow path capable of distributing the beverage from the first flow path to the second storage section; and a third flow path capable of distributing the beverage from the first storage section to the first flow path closer to the beverage injection section than the second flow path. A flow path, a fourth flow path capable of flowing the beverage from the second reservoir to the third flow path, a beverage flow pump provided in at least one of the first flow path and the third flow path, An open / close valve capable of opening and closing at least one of the flow path and the fourth flow path, and irradiating ultraviolet light into the second reservoir. An ultraviolet irradiator capable, by operating the pump causes closes the on-off valve, and a control means for circulating the beverage in the first reservoir to the third flow path and the first flow path.

  As a result, by closing the on-off valve and operating the pump by the control unit, the beverage in the first reservoir flows through the third channel and the first channel, and the beverage in the first reservoir is heated. Therefore, the beverage heated by the first reservoir can be circulated through the first channel and the third channel for heat sterilization. Moreover, since the inside of the second reservoir is irradiated with ultraviolet rays by the ultraviolet irradiator, the inside of the second reservoir can be sterilized. Furthermore, since at least one of the second flow path and the fourth flow path is closed by the on-off valve, the heated beverage that is circulated by the pump does not flow into the second reservoir, and the pump uses the second flow path. The beverage in the storage part does not flow out to the third flow path.

  According to the beverage dispenser of the present invention, the beverage heated by the first reservoir can be circulated through the first flow path and sterilized by heating, and the inside of the second reservoir can be sterilized by the ultraviolet irradiator. Therefore, the 1st flow path for supplying a drink from a drink container to each storage part and the inside of each storage part can be sterilized. In addition, since the beverage in the second reservoir does not flow out to the third flow path by the pump, it is not necessary to heat the cooled beverage in the second reservoir when sterilizing by heating, and the sterilization is performed for a short time. Can be done. Further, since the heated beverage circulated by the pump does not flow into the second reservoir, the beverage in the second reservoir is not cooled again after heating and does not deteriorate in taste. The beverage can be maintained in the taste supplied from the beverage container. Moreover, since the place which heat-sterilizes is in flow paths other than a 2nd storage part, and a 1st storage part, a sales opportunity is not missed by repeatedly heating and cooling the drink in a 2nd storage part, and energy consumption Can be reduced.

  1 to 7 show an embodiment of the present invention. FIG. 1 is a schematic configuration diagram of a beverage dispenser, FIGS. 2 and 3 are explanatory views of the operation of the beverage dispenser during heat sterilization, and FIG. 4 is a beverage. FIG. 5 to FIG. 7 are flowcharts showing the operation of the control unit.

  The beverage dispenser of the present embodiment has a plurality of reservoirs 10 serving as beverage injecting portions to which a plurality of bottles 1 serving as beverage containers are detachably attached, and a first beverage capable of heating and storing beverages supplied from the respective reservoirs 10. A hot water tank 20 serving as a reservoir, a cooling tank 30 serving as a second reservoir capable of cooling and storing beverages supplied from the respective reservoirs 10, and a beverage that can be optionally discharged from beverages supplied from the hot water tank 20. A hot water nozzle 40 serving as one discharge valve, a cold water nozzle 50 serving as a second discharge valve capable of arbitrarily discharging a beverage supplied from the cooling tank 30, and a first beverage capable of circulating the beverage from each reservoir 10 to the hot water tank 20. A first supply pipe 60 as a flow path, a second supply pipe 61 as a second flow path through which the beverage can flow from the first supply pipe 60 to the cooling tank 30, and the first supply pipe 60 are provided. A well-known pump 62 that distributes the beverage in the first supply pipe 60 to the hot water tank 20 side, a first communication pipe 71 that can distribute the beverage from the hot water tank 20 to the hot water nozzle 40, and the cooling tank 30 to the cold water nozzle 50 Beverages can be circulated from the first communication pipe 71 to the second communication pipe 72 through the second communication pipe 72 through which the beverage can be distributed, and the beverages can be distributed from the second communication pipe 72 to the respective reservoirs 10. The fourth communication pipe 74 is provided between the cooling tank 30 and the branch of the fourth communication pipe 74 and the second communication pipe 72, and serves as an on-off valve that can open and close the flow path of the second communication pipe 72. 1 electromagnetic valve 75.

  Each bottle 1 is a commercially available plastic container that contains a beverage such as mineral water, and can be attached to the reservoir 10 with the beverage spout facing downward.

  Each reservoir 10 can be attached with a beverage spout for each bottle 1 on its upper surface, and stores a predetermined amount of beverage that has flowed out of each bottle 1. An air filter 11 is attached to the upper surface of each reservoir 10, and the air filter 11 supplies air to each bottle 1 through each reservoir 10.

  The hot water tank 20 is formed in a cylindrical shape with both ends closed, a known electric heater 21 for heating the stored beverage, a temperature sensor 22 capable of detecting the temperature of the stored beverage, and the beverage Is provided with an emptying prevention sensor 23 capable of detecting that the amount of water has become a predetermined amount or less, and a drain pipe 24 through which the beverage is discharged when the beverage in the hot water tank 20 exceeds a predetermined amount. . Here, the electric heater 21 is controlled based on the detection result of the temperature sensor 22, and maintains the beverage in the hot water tank 20 at a predetermined temperature. The drain pipe 24 is provided with a check valve 25 so that the beverage flows only in the discharge direction, and a drainage container 26 is provided below the drain port of the drain pipe 24.

  The cooling tank 30 is formed in a cylindrical shape with both ends closed, an evaporator 31 for cooling the stored beverage, a temperature sensor 32 capable of detecting the temperature of the stored beverage, and the cooling tank 30. A well-known ultraviolet lamp 33 as an ultraviolet irradiator capable of irradiating ultraviolet rays is provided therein, and is operated for a predetermined time every time cold water is discharged and every predetermined time interval. The evaporator 31 is a part of a known refrigerator, and cools the beverage in the cooling tank 30 with a refrigerant supplied from a compressor (not shown). Here, the amount of the refrigerant supplied to the evaporator 31 is controlled based on the detection result of the temperature sensor 32, and the beverage in the cooling tank 30 is maintained at a predetermined temperature.

  The hot water nozzle 40 is connected to one end of the first communication pipe 71 and includes a discharge pipe 41 formed to extend downward. Further, the hot water nozzle 40 is provided with an electromagnetic valve (not shown) inside, and arbitrarily discharges a beverage to a cup CA disposed below the discharge pipe 41. Further, the hot water nozzle 40 is provided with a first discharge sensor 42, and the first discharge sensor 42 can detect whether or not the beverage is discharged from the discharge pipe 41.

  The cold water nozzle 50 is connected to one end of the second communication pipe 72 and includes a discharge pipe 51 formed so as to extend downward. Further, the cold water nozzle 50 is provided with an electromagnetic valve (not shown) inside, and arbitrarily discharges a beverage to a cup CA disposed below the discharge pipe 51. Further, the cold water nozzle 50 is provided with a second discharge sensor 52, and the second discharge sensor 52 can detect whether or not the beverage is discharged from the discharge pipe 51.

  The first supply pipe 60 is branched at one end and communicates with each reservoir 10, and the other end communicates with the hot water tank 20 from below. Each branch pipe 60a branched in the first supply pipe 60 is provided with a second electromagnetic valve 60b as a switching means, and the flow path of each branch pipe 60a is opened and closed by each second electromagnetic valve 60b. It has become. That is, by switching the opening and closing of each second electromagnetic valve 60b, any reservoir 10 among the respective reservoirs 10 with which each branch pipe 60a communicates communicates with the hot water tank 20 side.

  One end of the second supply pipe 61 communicates with the first supply pipe 60 closer to the hot water tank 20 than the branch portion, and the other end communicates with the cooling tank 30 from below.

  The first communication pipe 71 has one end communicating with the hot water nozzle 40 and the other end communicating with the hot water tank 20 from above.

  The second communication pipe 72 has one end communicating with the cold water nozzle 50 and the other end communicating with the cooling tank 30 from above.

  The third communication pipe has one end communicating with the hot water nozzle 40 and the other end communicating with the cold water nozzle 50. Here, the hot water nozzle 40 has a hollow portion (not shown) formed therein, and the first communication pipe 71 and the third communication pipe 73 communicate with each other through the hollow section. Further, a hollow portion (not shown) is formed inside the cold water nozzle 50, and the second communication pipe 72 and the third communication pipe 73 are communicated with each other through the hollow section. The third communication pipe 73 is provided with a third electromagnetic valve 73a as a third communication pipe opening / closing valve so that the flow path of the third communication pipe 73 can be opened and closed.

  The fourth communication pipe 74 is branched at one end and communicates with each reservoir 10, and the other end communicates with the second communication pipe 72. Each branch pipe 74a branched in the fourth communication pipe 74 is provided with a check valve 74b so that the beverage flows only from the second communication pipe 72 side to each reservoir 10 side. Further, the fourth communication pipe 74 closer to the second communication pipe 72 than the branch portion is provided with a fourth electromagnetic valve 74c as a fourth communication pipe on-off valve, so that the flow path of the fourth communication pipe can be opened and closed. ing.

  The ultraviolet lamp 33, the discharge sensors 42 and 52, the pump 62, the first electromagnetic valve 75, the second electromagnetic valve 60b, the third electromagnetic valve 73a, and the fourth electromagnetic valve 74c are each a control unit 80 composed of a known microcomputer. And an input unit 81 and a storage unit 82 are connected to the control unit 80. Here, the storage unit 82 stores the first to third programs for sterilizing the inside of the beverage dispenser, and when any program is selected by an instruction input to the input unit 81, Control by the control unit 80 is performed based on the program.

  In the beverage dispenser configured as described above, the case where the internal sterilization is performed based on the first program will be described with reference to the flowchart (FIG. 5) showing the operation of the control unit 80. Here, before sterilization, the pump 62 is stopped and the first electromagnetic valve 75 is opened. In addition, the third electromagnetic valve 73a and the fourth electromagnetic valve 74c are closed, and a predetermined second electromagnetic valve 60b among the second electromagnetic valves 60b is opened. 3 minutes), and when there is no sale, irradiation is performed for a predetermined time (for example, 3 minutes) at a predetermined time interval (for example, every 2 hours). Here, it is desirable to set the predetermined time for irradiating ultraviolet rays at the time of sale to a time sufficient to sterilize the beverage that flows in in synchronization with the sale.

  First, in a state in which no beverage is discharged from the nozzles 40 and 50, when the internal clock in the control unit 80 reaches a predetermined time (S1), the first electromagnetic valve 75 is closed and the first electromagnetic valve 75 is closed. All the 2 solenoid valves 60b are opened, the 3rd solenoid valve 73a and the 4th solenoid valve 74c are opened, and the pump 62 is operated (S2). As a result, the first communication pipe 71, the third communication pipe 73, the second communication pipe 72 between the cold water nozzle 50 and the fourth communication pipe 74, the fourth communication pipe 74, each reservoir 10, and the first supply pipe 60 are provided. Heated sterilization can be performed by circulating the heated beverage in the hot water tank 20. That is, heat sterilization is performed at a predetermined time. At this time, since the first electromagnetic valve 75 is closed, the heated beverage does not flow into the cooling tank 30, and the cooled beverage in the cooling tank 30 is on the fourth communication pipe 74 side. Will not leak. Subsequently, when a predetermined time (for example, 30 minutes) elapses after the pump 62 is operated (S3), the pump 62 is stopped, the first electromagnetic valve 75 is opened, and the second electromagnetic valve 60b The second electromagnetic valve 60b opened for sterilization is closed, and the third electromagnetic valve 73a and the fourth electromagnetic valve 74c are closed (S4).

  Next, the case where sterilization is performed based on the second program will be described with reference to a flowchart (FIG. 6) showing the operation of the control unit 80. Here, before sterilization, the pump 62 is stopped and the first electromagnetic valve 75 is opened. Further, the third electromagnetic valve 73a and the fourth electromagnetic valve 74c are closed, and a predetermined second electromagnetic valve 60b among the second electromagnetic valves 60b is opened, and ultraviolet rays are constantly irradiated by the ultraviolet lamp 33.

  First, when a predetermined time (for example, 12 hours) elapses after the discharge sensors 42 and 52 no longer detect the discharge of the beverage (S11), the first electromagnetic valve 75 is closed and all the second electromagnetic valves 60b are all closed. The third electromagnetic valve 73a and the fourth electromagnetic valve 74c are opened, and the pump 62 is operated (S12). As a result, the first communication pipe 71, the third communication pipe 73, the second communication pipe 72 between the cold water nozzle 50 and the fourth communication pipe 74, the fourth communication pipe 74, each reservoir 10, and the first supply pipe 60 are provided. Heated sterilization can be performed by circulating the heated beverage in the hot water tank 20. That is, heat sterilization is performed when a predetermined time elapses after no drink is detected. At this time, since the first electromagnetic valve 75 is closed, the heated beverage does not flow into the cooling tank 30, and the cooled beverage in the cooling tank 30 is on the fourth communication pipe 74 side. Will not leak. Subsequently, when a predetermined time (for example, 30 minutes) elapses after the pump 62 is operated (S13), the pump 62 is stopped, the first electromagnetic valve 75 is opened, and the second electromagnetic valve 60b The second electromagnetic valve 60b opened for sterilization is closed, and the third electromagnetic valve 73a and the fourth electromagnetic valve 74c are closed (S14).

  Next, the case where sterilization is performed based on the third program will be described with reference to a flowchart (FIG. 7) showing the operation of the control unit 80. Here, before sterilization, the pump 62 is stopped and the first electromagnetic valve 75 is opened. Further, the third electromagnetic valve 73a and the fourth electromagnetic valve 74c are closed, and a predetermined second electromagnetic valve 60b among the second electromagnetic valves 60b is opened, and the ultraviolet lamp 33 is not irradiated with ultraviolet rays. is there.

  First, when a predetermined time (for example, 12 hours) elapses after the discharge sensors 42 and 52 no longer detect the discharge of the beverage (S21), the first electromagnetic valve 75 is closed and all the second electromagnetic valves 60b are all closed. The third electromagnetic valve 73a and the fourth electromagnetic valve 74c are opened, and the pump 62 is operated (S22). As a result, the first communication pipe 71, the third communication pipe 73, the second communication pipe 72 between the cold water nozzle 50 and the fourth communication pipe 74, the fourth communication pipe 74, each reservoir 10, and the first supply pipe 60 are provided. Heated sterilization is performed by circulating the heated beverage in the hot water tank 20. At this time, since the first electromagnetic valve 75 is closed, the heated beverage does not flow into the cooling tank 30, and the cooled beverage in the cooling tank 30 is on the fourth communication pipe 74 side. Will not leak.

  Subsequently, when a predetermined time (for example, 15 minutes) elapses after the pump 62 is operated (S23), ultraviolet rays are irradiated by the ultraviolet lamp 33 (S24). Thereby, the inside of the cooling tank 20 is sterilized by ultraviolet rays. Next, when 3 minutes have elapsed from the start of the irradiation of ultraviolet rays by the ultraviolet lamp 33 (S25), the irradiation of ultraviolet rays by the ultraviolet lamp 33 is stopped and the first electromagnetic valve 75 is opened (S26). Thereby, the beverage heated in the first supply pipe 60 flows into the cooling tank 30 and the beverage in the cooling tank 30 flows out to the fourth communication pipe 74 side.

  Subsequently, when a predetermined time (for example, 4 seconds) elapses after the first electromagnetic valve 75 is opened (S27), the first electromagnetic valve 75 is closed (S28), and ultraviolet rays are irradiated by the ultraviolet lamp 33 (S29). ). Here, it is desirable to set the time for opening the first electromagnetic valve 75 to a time sufficient to allow the beverage staying in the second communication pipe 72 and the second supply pipe 61 to flow out. As a result, the beverage that stays between the branches of the fourth communication pipe 74 in the second communication pipe 72 and has not been sterilized can be UV-sterilized, and also stays in the second supply pipe 61 and sterilizes. The beverage that has not been made flows into the cooling tank 30 and is sterilized by ultraviolet rays. Further, since the heat-sterilized beverage is introduced into the second supply pipe 61, the second supply pipe 61 is also replaced with the heat-sterilized drink. At this time, since the first electromagnetic valve 75 is opened for a short time, the amount of the heated beverage flowing into the cooling tank 30 is also small, and the beverage in the cooling tank 30 is not heated.

  Next, when a predetermined time (for example, 3 minutes) elapses from the start of the irradiation of ultraviolet rays by the ultraviolet lamp 33 (S30), the irradiation of ultraviolet rays by the ultraviolet lamp 33 is stopped (S31). Here, it is desirable to set the irradiation time of the ultraviolet rays from the ultraviolet lamp 33 to a time sufficient to sterilize the beverage that has newly flowed into the cold water tank 30. In addition, when a predetermined time (for example, 15 minutes) has passed since the irradiation of the ultraviolet light by the ultraviolet lamp 33 is stopped (S32), the pump 62 is stopped and the second electromagnetic valve 60b is opened for sterilization. The second electromagnetic valve 60b is closed, and the third electromagnetic valve 73a and the fourth electromagnetic valve 74c are closed (S33).

  Thus, according to the present embodiment, when the first electromagnetic valve 75 is closed and the second electromagnetic valve 60b, the third electromagnetic valve 73a, and the fourth electromagnetic valve 74c are opened, the communication pipes 71, 72, 73 and 74 form a flow path through which the beverage heated from the hot water tank 20 to the reservoir 10 can be circulated, and the reservoir 10 and the hot water tank 20 communicate with each other through the first supply pipe 60, so that the pump 62 is By operating, the beverage heated by the hot water tank 20 can be circulated through the first supply pipe 60 and sterilized by heating. On the other hand, since the inside of the cooling tank 30 is also sterilized by the ultraviolet lamp 33, the inside of the first supply pipe 60 and the inside of each tank 20, 30 for supplying beverages from each bottle 1 to each tank 20, 30 can be sterilized. it can.

  Moreover, since the 1st solenoid valve 75 is closed when performing heat sterilization and the cooled drink in the cooling tank 30 does not flow out to the 4th communication pipe 74 side, when performing heat sterilization, the cooling tank 30 There is no need to heat the cooled beverage, the sterilization can be performed in a short time, sales opportunities are not missed, and energy saving can be achieved.

  Furthermore, since the 1st solenoid valve 75 is closed when heat-sterilizing and the drink which heated in the cooling tank 30 does not flow in, the drink in the cooling tank 30 is cooled again after heating, and a taste falls. The beverage in the cooling tank 30 can be maintained at the taste supplied from each bottle 1.

  In addition, a flow path through which the beverage is circulated from the hot water tank 20 to each reservoir 10 is formed from each communication pipe 71, 72, 73, 74, and each communication pipe 71, 72 that circulates beverage through each nozzle 40, 50 is also heated Since the drinks that have been used are distributed, the heat sterilization can be performed up to the vicinity of the nozzles 40 and 50, and the beverage can be sterilized reliably.

  Furthermore, since the control unit controls the on-off valves 60b, 73a, 74c, 75 and the pump 62 at a predetermined time, and the heat sterilization is performed, the beverage can be sterilized without human hands. Can be easily and reliably sterilized.

  In addition, when a predetermined time (for example, 12 hours) has passed since the discharge of the beverage is no longer detected, the control unit controls each of the on-off valves 60b, 73a, 74c, 75 and the pump 62 to perform heat sterilization. Heat sterilization can be performed according to the frequency of use, which is extremely advantageous for efficient heat sterilization.

  Further, while operating the pump 62 for heat sterilization, the first electromagnetic valve 75 is opened for 4 seconds, the second supply pipe 61 is replaced with a heat sterilized beverage, and the second communication pipe 72 is filled. The beverage that was not sterilized was replaced with the beverage that was sterilized by ultraviolet rays in the cooling tank 20, and the beverage that was not sterilized in the second supply pipe 61 was introduced into the cooling tank 30 and sterilized by ultraviolet rays. As a result, the beverage can be sterilized more reliably.

  Further, since the first electromagnetic valve 75 is opened for a short time, the amount of the heated beverage flowing into the cooling tank 30 is small and the beverage in the cooling tank 30 is not heated. . That is, the taste of the beverage in the cooling tank 30 is not lowered by re-cooling after heating, and the beverage in the cooling tank 30 can be maintained at the taste supplied from each bottle 1.

  In the present embodiment, the fourth communication pipe 74 is formed such that one end side branches and communicates with each reservoir 10. However, as shown in FIG. 8, the fourth communication pipe 74 is formed at one end side. It is also possible to provide the first supply pipe 60 so as to be connected to the branch portion. In this case, the heated beverage in the hot water tank 20 during the heat sterilization includes the first communication pipe, the third communication pipe, the second communication pipe 72 between the cold water nozzle 50 and the fourth communication pipe 74, and the fourth. The communication pipe 74 and the first supply pipe 60 are circulated. For this reason, there is no need to control the opening and closing of each second electromagnetic valve 60b when performing heat sterilization, which is advantageous in that the program of the control unit 80 can be simplified.

The schematic block diagram of the drink dispenser which shows one Embodiment of this invention. Operation explanatory diagram of beverage dispenser at the time of heat sterilization Operation explanatory diagram of beverage dispenser at the time of heat sterilization Beverage dispenser block diagram Flow chart showing operation of control unit Flow chart showing operation of control unit Flow chart showing operation of control unit Operation | movement explanatory drawing at the time of carrying out heat sterilization in the beverage dispenser which shows the modification of the 4th communicating pipe in 1st Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Bottle, 10 ... Reservoir, 20 ... Hot water tank, 21 ... Electric heater, 22 ... Temperature sensor, 23 ... Emptying prevention sensor, 24 ... Drain pipe, 26 ... Drainage container, 30 ... Cooling tank, 31 ... Evaporator, 32 ... Temperature sensor, 33 ... Ultraviolet lamp, 40 ... Hot water nozzle, 41 ... Discharge pipe, 42 ... First discharge sensor, 50 ... Cold water nozzle, 51 ... Discharge pipe, 52 ... Second discharge sensor, 60 ... First Supply pipe, 60a ... Branch pipe, 60b ... Second solenoid valve, 61 ... Second supply pipe, 62 ... Pump, 71 ... First communication pipe, 72 ... Second communication pipe, 73 ... Third communication pipe, 73a ... First 3 solenoid valves, 74 ... fourth communication pipe, 74a ... branch pipe, 74c ... fourth solenoid valve, 75 ... first solenoid valve, 80 ... control section, 81 ... input section, 82 ... storage section, CA ... cup.

Claims (8)

A beverage injecting portion to which at least one beverage container is detachably attached, a first storage portion capable of storing a beverage supplied from the beverage container by heating, and a beverage supplied from the beverage container can be cooled and stored A beverage dispenser comprising a second reservoir and capable of discharging a beverage arbitrarily from each reservoir,
A first flow path capable of distributing a beverage from the beverage injection section to the first storage section;
A second flow path capable of flowing a beverage from the first flow path to the second reservoir,
A third flow path capable of distributing a beverage from the first storage portion to the beverage injection portion;
A fourth flow path capable of flowing a beverage from the second reservoir to the third flow path;
A beverage circulation pump provided in at least one of the first flow path and the third flow path;
An on-off valve capable of opening and closing at least one of the second flow path and the fourth flow path;
An ultraviolet irradiator capable of irradiating ultraviolet rays into the second reservoir;
A beverage dispenser comprising: a third flow path, a beverage injection section, and a control means for causing the beverage in the first storage section to flow through the first flow path by closing the on-off valve and operating the pump. A first discharge valve capable of arbitrarily discharging a beverage supplied from the first reservoir,
A second discharge valve capable of arbitrarily discharging a beverage supplied from the second reservoir,
A first communication pipe capable of flowing a beverage from the first reservoir to the first discharge valve;
A second communication pipe capable of flowing a beverage from the second reservoir to the second discharge valve;
A third communication pipe capable of distributing a beverage from the first communication pipe to the second communication pipe;
A fourth communication pipe capable of distributing the beverage from the second communication pipe to the beverage injecting section;
A third communication pipe opening / closing valve capable of opening and closing a flow path of the third communication pipe;
A fourth communication pipe opening and closing valve capable of opening and closing the flow path of the fourth communication pipe,
The third flow path is formed of a first communication pipe, a second communication pipe between the second discharge valve and the fourth communication pipe, a third communication pipe, and a fourth communication pipe.
The beverage dispenser according to claim 1, wherein the fourth flow path is formed by a second communication pipe between the second reservoir and the fourth communication pipe. A beverage injection part to which at least one beverage container is detachably attached, a first storage part capable of heating and storing a beverage supplied from the beverage container, and a beverage supplied from the beverage container can be cooled and stored A beverage dispenser comprising a second reservoir and capable of discharging a beverage arbitrarily from each reservoir,
A first flow path capable of distributing a beverage from the beverage injection section to the first storage section;
A second flow path capable of flowing a beverage from the first flow path to the second reservoir,
A third flow path capable of flowing a beverage from the first storage part to the first flow path on the beverage injection part side of the second flow path;
A fourth flow path capable of flowing a beverage from the second reservoir to the third flow path;
A beverage circulation pump provided in at least one of the first flow path and the third flow path;
An on-off valve capable of opening and closing at least one of the second flow path and the fourth flow path;
An ultraviolet irradiator capable of irradiating ultraviolet rays into the second reservoir;
A beverage dispenser comprising: a third flow path and a control means for circulating the beverage in the first reservoir through the first flow path by closing the on-off valve and operating the pump. A first discharge valve capable of arbitrarily discharging a beverage supplied from the first reservoir,
A second discharge valve capable of arbitrarily discharging a beverage supplied from the second reservoir,
A first communication pipe capable of flowing a beverage from the first reservoir to the first discharge valve;
A second communication pipe capable of flowing a beverage from the second reservoir to the second discharge valve;
A third communication pipe capable of distributing a beverage from the first communication pipe to the second communication pipe;
A fourth communication pipe capable of circulating a beverage from the second communication pipe to the first flow path on the beverage injection part side of the second flow path;
A third communication pipe opening / closing valve capable of opening and closing a flow path of the third communication pipe;
A fourth communication pipe opening and closing valve capable of opening and closing the flow path of the fourth communication pipe,
The third flow path is formed of a first communication pipe, a second communication pipe between the second discharge valve and the fourth communication pipe, a third communication pipe, and a fourth communication pipe.
The beverage dispenser according to claim 3, wherein the fourth flow path is formed by a second communication pipe between the second reservoir and the fourth communication pipe. The control means closes the on-off valve for a predetermined time at a predetermined time, opens the third and fourth communication pipe on-off valves, and pumps while the third and fourth communication pipe on-off valves are open. The beverage dispenser according to claim 2 or 4, wherein the beverage dispenser is configured to operate. A first discharge sensor capable of detecting whether or not a beverage is discharged from the first discharge valve;
A second discharge sensor capable of detecting whether or not the beverage is discharged from the second discharge valve;
When a predetermined time elapses after the discharge sensor no longer detects the discharge of beverage by each discharge sensor, the control means closes the on-off valve for a predetermined time and opens the third and fourth communication pipe on-off valves, The beverage dispenser according to claim 2 or 4, wherein the pump is operated while the fourth communication pipe opening / closing valve is open. The beverage dispenser according to claim 5 or 6, wherein the control means is configured to irradiate ultraviolet rays by an ultraviolet irradiator for a predetermined time after opening the third and fourth communication pipe opening / closing valves. The beverage dispenser according to claim 5, 6 or 7, wherein the control means is configured to open the on-off valve for a predetermined time while the pump is operating.

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