JP2016124617A - Liquid pouring device, shut-off valve and blocking member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid pouring device capable of efficiently sterilizing a pipeline.SOLUTION: In a liquid pouring device 1, a cold water pouring flow channel 71, a hot water pouring flow channel 72 and a soda water pouring flow channel 73 connected individually to a cold water tank 11 storing cold water, a hot water tank 21 having a heater 53 and storing hot water and a soda water tank 31 storing soda water, respectively are connected to a common flow channel 74 via a confluent part and communicate with a pour-out port provided on the common flow channel 74. The device has plural individual shut-off valves 42 to 44 provided to the pouring flow channels 71 to 73, respectively to open or close the channels 71 to 73, and a common shut-off valve 45 opening or closing the common flow channel 74 between the confluent part and the pour-out port.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a liquid dispensing apparatus that provides liquids such as cold water, hot water, and carbonated water.

  A liquid pouring device that provides drinking water such as cold water, hot water, and carbonated water is provided with a mechanism for sterilizing piping in the liquid pouring device in order to maintain the quality of the drinking water. For example, a liquid pouring device having a mechanism for sterilizing the inside of piping using hot water to be provided is known (see, for example, Patent Document 1).

JP 2011-73736 A

  The beverage to be provided is stored in each tank for each type. It is necessary to sterilize the piping through which the beverage from each tank to the supply port flows, and realization of a mechanism for efficiently sterilizing the inside of the liquid dispensing apparatus is desired.

  Then, an object of this invention is to provide the liquid extraction apparatus etc. which can disinfect piping efficiently.

  In the liquid dispensing apparatus of the present invention, at least one of the plurality of tanks (11, 21, 31) for storing liquid is provided with a heating device (53, 39) for heating the stored liquid, A plurality of individual flow paths (71 to 73) individually connected to each of the plurality of tanks are connected to the common flow path (74) via the merging portion (47), and the spout provided in the common flow path In the liquid dispensing apparatus (1) communicating with (3), a plurality of individual on-off valves (42 to 44) provided in each of the plurality of individual flow paths to open and close the individual flow paths, and the merging portion And a common on-off valve (45) for opening and closing the common flow path between the outlet and the spout.

  According to the present invention, since the plurality of individual on-off valves are joined at the junction, the hot water heated by the heating device can be circulated through the flow path including the individual on-off valves and sterilized. Moreover, since the spout is shared for the liquid in each tank, the spout can be sterilized when hot water is poured out. Therefore, piping can be sterilized efficiently.

  In one aspect of the present invention, the plurality of individual on-off valves and the common on-off valve may be integrally configured. According to this, by integrally configuring the bodies of the plurality of on-off valves around the spout, when hot water flows through the flow path including any of the on-off valves, the other on-off valves are heated through the body. Is transmitted. Heat is transmitted to the whole of the plurality of integrally configured on-off valves, so that the sterilization efficiency can be improved.

  1 aspect of this invention WHEREIN: The said flow path is connected with the separate flow path (73) connected with any one specific tank (31) among the said several tanks, and another tank (11, 21). A partition member (48) for partitioning between the individual flow path and (71, 72) may be provided. In this aspect, the specific tank may be a carbonated water tank (13). In this aspect, the partition member may be provided so as to prevent the liquid flowing through the individual flow path connected to the specific tank from flowing into the individual flow path connected to the other tank. Good.

  In one aspect of the present invention, the plurality of tanks may include a cold water tank (11) that stores cold water and a hot water tank (21) that is provided with the heating device and stores hot water. In the liquid pouring device that pours cold water and hot water, the individual on-off valve and the common on-off valve can be sterilized using hot water.

  In the on-off valve of the present invention, at least one of the plurality of tanks (11, 21, 31) for storing liquid is provided with a heating device (53, 39) for heating the stored liquid. A plurality of individual flow paths (71 to 73) individually connected to each of the tanks are connected to the common flow path (74) via the merging portion (47), and the spout (3 provided in the common flow path) On / off valve (41) provided in the liquid dispensing device (1) in communication with a plurality of individual on-off valves (42) provided on each of the plurality of individual flow paths to open and close the individual flow paths (42). 44) and a common on-off valve (45) for opening and closing the common flow path between the junction and the spout, and the plurality of individual on-off valves and the body of the common on-off valve (46) ) Are integrally configured.

  According to the present invention, the body of the individual on-off valve and the common on-off valve is integrally configured so that when hot water flows through the flow path including either the on-off valve of the individual on-off valve or the common on-off valve, Heat is transferred to the other on-off valve via the. Heat is transmitted to the entire on-off valve, and sterilization efficiency can be improved.

  The liquid pouring device of the present invention comprises a cold water tank (11) for storing cold water, a hot water tank (21) having a heating device (53) for storing hot water, and a heating device (39) for carbonated water. A carbonated water tank (31) for storing and a spout (3) for pouring each liquid stored in each tank, and a supply flow path (76) connected to the cold water tank includes the carbonated water tank (31). It connects with the carbonated water flow path (73) connected to the said spout via a water tank, the said carbonated water flow path is connected with a connection path (78) via a branch part (73a), and the said connection path is a junction part ( The hot water in the carbonated water tank is circulated through the carbonated water circulation path (85) connected to the supply flow path via the supply channel 76b) and is circulated between the hot water tank and the cold water tank. The heated water circulation path (84) in the hot water tank The liquid dispensing apparatus (1) water is circulated, the hot water circulation path is one that contains the flow path to the confluence portion from the cold water tank of the supply channel.

  According to the present invention, the flow path from the cold water tank that is not included in the carbonated water circulation path to the junction is included in the warm water circulation path so that it can be sterilized at the time of sterilization in the warm water circulation path. Efficient sterilization is possible by including an unsterilized flow path in the flow path of another sterilization step executed in the liquid dispensing apparatus. Moreover, the sterilization leak of a flow path can be prevented. Therefore, piping can be sterilized efficiently.

  In one aspect of the present invention, the hot water circulation path may include the connection path. According to this, the connection path is included in the carbonated water circulation path, and water flows at the time of sterilization. However, the connection path is not used at the time of normal use and is likely to collect water. Sterilization leakage can be prevented by including the connection path in the hot water circulation path.

  1 aspect of this invention WHEREIN: The said carbonated water tank is a carbonator (31) which contains carbonated gas in water and produces | generates carbonated water, The water stored in the said carbonated water tank is circulated in the said carbonated water circuit The concentration of carbon dioxide in the water circulating in the carbonated water tank may be increased. According to this, for example, when hot water is circulated in the carbonated water circulation path and the piping constituting the circulation path is sterilized, the carbon dioxide gas is released from the water in the carbonated water tank. The drained water can be circulated to contain carbon dioxide. By using the sterilization flow path, it is possible to reduce the size of the apparatus without providing new piping. Therefore, piping can be sterilized efficiently.

  1 aspect of this invention, It operates according to the height of the water surface (S) in the said cold water tank inserted into the said cold water tank, and supplies water to the said cold water tank, and the said water supply pipe A blocking member (15) for blocking water supply from the water supply pipe, and when the lower end (12a) of the water supply pipe is positioned below the water surface, Good. According to this, when the shutoff member shuts off the supply of water and the inside of the cold water tank is full, the lower end of the piping member is immersed in water. When the blocking member comes into contact with water, the blocking member can also be sterilized via the water when the cold water tank is sterilized.

  The liquid pouring device of the present invention has a heating device (39), includes a carbonator (31) for generating carbonated water by containing carbon dioxide in water, and has a predetermined circulation path (85) including the carbonator. In the liquid pouring device (1) in which hot water heated by the carbonator circulates, the water stored in the carbonator is circulated in the circulation path, and the concentration of carbon dioxide in the water circulated in the carbonator is increased. It is.

  According to the present invention, for example, when hot water is circulated in the carbonated water circulation path and the pipes constituting the circulation path are sterilized, the water in the carbonated water tank has lost carbon dioxide gas. The water that has been removed can be circulated to contain carbon dioxide. By using the sterilization flow path, it is possible to reduce the size of the apparatus without providing new piping. Therefore, piping can be sterilized efficiently.

  The liquid dispensing apparatus of the present invention includes a tank (11) for storing liquid, a liquid supply pipe (12) that is inserted into the tank and supplies liquid to the tank, and a liquid level (S) in the tank. In a liquid dispensing apparatus (1), which operates according to height and shuts off the supply of liquid from the liquid supply pipe, the lower end (12a) of the liquid supply pipe is The blocking member blocks supply of liquid when positioned below the liquid level.

  According to the present invention, when the blocking member blocks the supply of water and the tank is full, the lower end of the piping member is immersed in water. When the blocking member comes into contact with water, the blocking member can be sterilized via the water when the tank is sterilized. Therefore, piping can be sterilized efficiently.

  In one aspect of the present invention, the tank may be a cold water tank (11) that stores cold water.

  The blocking member of the present invention can be installed in a tank (11) into which a liquid supply pipe (12) for supplying liquid is inserted, operates according to the height of the liquid level (S) in the tank, and A blocking member (15) for blocking the supply of liquid from the liquid pipe, and when the lower end (12a) of the liquid supply pipe is positioned below the liquid level, supply of the liquid from the liquid supply pipe It is a thing to cut off.

  According to the present invention, when the blocking member is installed in the tank, the blocking member blocks the supply of water, and when the tank is full, the lower end of the piping member is immersed in water. When the blocking member comes into contact with water, the blocking member can be sterilized via the water when the tank is sterilized. Therefore, piping can be sterilized efficiently.

  In addition, in the above description, in order to make an understanding of this invention easy, the reference sign of the accompanying drawing was attached in parenthesis, but this invention is not limited to the form of illustration by it.

  As described above, according to the present invention, since the plurality of individual on-off valves are joined at the junction, the hot water heated by the heating device is circulated through the flow path including each individual on-off valve, and sterilized. can do. Moreover, since the spout is shared for the liquid in each tank, the spout can be sterilized when hot water is poured out. Therefore, piping can be sterilized efficiently.

The perspective view of the water server to which the liquid pouring device concerning one form of the present invention was applied. The enlarged view of a storage part. The figure which shows arrangement | positioning inside a water server. The front view which showed the inside of a cold water tank. The side view of FIG. 4A. The front view of a stopper. FIG. 5B is a top view of FIG. 5A. Sectional drawing cut | disconnected by the VV line | wire of FIG. 5A. The front view which showed the inside of a warm water tank. The front view which showed the inside of the carbonated water tank. The side view of FIG. 7A. The circuit diagram of a water server. The front view of a valve block. FIG. 9B is a top view of FIG. 9A. Sectional drawing cut | disconnected by the IXC-IXC line | wire of FIG. 9B. Sectional drawing cut | disconnected by the IXD-IXD line | wire of FIG. 9B. The block diagram which shows the structure of the control system of a water server. The flowchart which shows the flow of a cold / hot water sterilization process. The flowchart explaining the disinfection process of a cold water tank. The flowchart explaining the sterilization process of a booster pump. The flowchart explaining the disinfection process of piping between a cold water tank and a warm water tank. The flowchart which shows the flow of a carbonated water sterilization process. The flowchart explaining the disinfection process of a carbonated water tank. The flowchart explaining the piping sterilization process which sterilizes the carbonated water circulation path containing a carbonated water tank. The flowchart explaining a carbon dioxide reapplying process. The figure explaining the effect | action of a stopper. The perspective view which showed the valve block of the state which removed the common on-off valve. Sectional drawing cut | disconnected by the XXI-XXI line of FIG. 9C. The figure explaining the flow of the liquid between a carbonated water extraction flow path and another extraction flow path.

(Water server configuration)
FIG. 1 is a perspective view of a water server to which a liquid dispensing apparatus according to an embodiment of the present invention is applied. The water server 1 is a device that attaches a water pack WP filled with drinking water and provides cold water, hot water, and carbonated water. The water server 1 includes a storage unit 2 that stores therein a water pack WP, a common spout 3 that discharges cold water, hot water, and carbonated water as liquids, and an operation unit 4.

  FIG. 2 is an enlarged view of the storage unit 2. The storage portion 2 is provided with a lid 2a that opens and closes with respect to the storage area A of the water pack WP, and an attachment 2b for taking out drinking water from the water pack WP. The storage unit 2 is not provided with a cooling device or a heating device, and the water pack WP is stored at room temperature. Hereinafter, room temperature drinking water may be referred to as room temperature water. The lid 2a is provided with a push plate 2c that presses the stored water pack WP. When the lid 2 a is closed, the push plate 2 c presses the water pack WP, and normal temperature water is sent out to the cold water tank 11. The attachment 2b is provided with a needle 2d (see FIG. 8) that is attached to the water pack WP and takes out room temperature water. Returning to FIG. 1, the spout 3 is connected to each of a cold water tank 11, a hot water tank 21, and a carbonated water tank 31, which will be described later, and dispenses cold water, warm water, and carbonated water according to the operation of the operation unit 4. . The operation unit 4 is provided with a plurality of buttons 4a for various operations such as buttons for pouring each type of water, and a display unit 4b. The operation unit 4 accepts various operations such as various types of water extraction and environment setting. In addition, "water" here is a superordinate concept including cold water, uncooled normal temperature water, warm water, and carbonated water. Cold water, room temperature water, hot water, and carbonated water are distinguished and may be expressed as various types of water. Further, the concept of “liquid” includes various drinks such as juice, beer and tea in addition to water.

  FIG. 3 is a diagram illustrating an internal arrangement of the water server 1. The water server 1 includes a cold water tank 11 that stores cold water and room temperature water, a hot water tank 21 that stores hot water, and a carbonated water tank 31 that stores carbonated water. Drinking water in the water pack WP is supplied to the cold water tank 11 via the attachment 2b, and a part of the supplied normal temperature water is cooled. From the cold water tank 11, normal temperature water is supplied to the hot water tank 21, and cold water is supplied to the carbonated water tank 31. In the warm water tank 21, room temperature water is heated to warm water. In the carbonated water tank 31, carbonated water is generated by applying pressure to cold water and carbon dioxide gas. A valve block 41 is provided between each tank 11, 21, 31 and the spout 3.

  4A is a front view showing the inside of the cold water tank 11, and FIG. 4B is a side view thereof. The cold water tank 11 is a cylindrical tank. The cold water tank 11 is connected to a water supply pipe 12 to which normal temperature water is supplied from the water pack WP, a cold water extraction pipe 13 that is connected to the spout 3 to extract cold water, and a hot water tank 21 to supply normal temperature water. A hot water tank water supply pipe 14a and a carbonated water tank water supply pipe 14b connected to the carbonated water tank 31 to supply cold water are connected. The water supply pipe 12 is made of stainless steel (SUS). In the cold water tank 11, a float type stopper 15 as a blocking member for blocking the supply of normal temperature water from the water supply pipe 12, a guide member 16 for guiding the stopper 15, cold water and normal temperature water in the cold water tank 11, and A separator 17 that separates the water, a float switch 18 that operates according to the water level in the cold water tank 11, a thermometer 19 that measures the temperature of the cold water, and an air filter 20 are provided.

  5A is a front view of the stopper 15, FIG. 5B is a top view thereof, and FIG. 5C is a cross-sectional view taken along line V-V in FIG. 5A. The stopper 15 is provided with a float portion 15a that floats on water, a plug portion 15b that blocks supply from the water supply pipe 12, and a connection portion 15c that connects the float portion 15a and the plug portion 15b. The float portion 15a is fixed to one end side of the connection portion 15c. The inside of the float part 15a is a cavity, and thereby buoyancy is obtained. The plug portion 15 b is provided with an O-ring 15 d and a packing 15 e, and stops water supply from the water supply pipe 12 together with the guide member 16. The connecting portion 15c is bent so as to support the plug portion 15b below the float portion 15a. The guide member 16 is a cylindrical member in which the water supply pipe 12 is fixed. When the water level in the cold water tank 11 rises, the guide member 16 and the plug portion 15b combine to stop water supply.

  Returning to FIG. 4A, the separator 17 will be described. The separator 17 includes a separation plate 17a that separates the cold water tank 11 into an upper portion 11A and a lower portion 11B inside the cold water tank 11, and a derivation that is fixed to the separation plate 17a and guides the room temperature water in the upper portion 11A to the hot water tank water supply pipe 14a. A pipe 17b is provided. The diameter of the separation plate 17 a is smaller than the inner diameter of the cold water tank 11, and a gap is generated between the outer peripheral portion 17 c of the separation plate 17 a and the inner peripheral surface 11 a of the cold water tank 11. Normal temperature water is supplied to the lower part 11B of the cold water tank 11 through this gap. On the other hand, the outlet pipe 17b secures a flow path of the water of the upper part 11A from the cold water of the lower part 11B, and guides the normal temperature water of the upper part 11A of the cold water tank 11 to the hot water tank water supply pipe 14a. The float switch 18 and the thermometer 19 may be configured using a well-known technique. In addition, an evaporator 51 that cools the lower part 11 </ b> B of the cold water tank 11 is provided outside the cold water tank 11. The evaporator 51 operates the compressor 52 provided in the lower part of the water server 1 to cool the water in the lower part 11B of the cold water tank 11. On the other hand, the upper part 11A of the cold water tank 11 is not a cooling target.

  FIG. 6 is a front view showing the inside of the hot water tank 21. The hot water tank 21 is branched from a hot water tank water supply pipe 14a, a hot water discharge pipe 22 connected to the outlet 3 for discharging hot water, an air vent hose 23 connected to the cold water tank 11, and a carbonated water tank water supply pipe 14b. A connecting pipe 24 connected to the portion 76a (see FIG. 8) is connected. In the air vent hose 23, hot water flows between the hot water tank 21 and the cold water tank 11 in a sterilization process described later. In addition, a thermometer 25 for measuring the water temperature in the hot water tank 21 is installed in the temperature tank 21. A heating device 53 for heating the hot water tank 21 is provided outside the hot water tank 21. The heating device 53 may be configured using a known technique.

  7A is a front view showing the inside of the carbonated water tank 31, and FIG. 7B is a side view thereof. The carbonated water tank 31 is a carbonator that generates carbonated water. The carbonated water tank 31 includes a carbonated water tank water supply pipe 14 b, a carbonated water extraction pipe 32 that is connected to the outlet 3 to extract carbonated water, a gas pipe 33 that supplies carbon dioxide from the carbon dioxide gas cylinder 104, and a drain valve. A drain pipe 34 connected to 105 is connected. The carbonated water tank 31 is attached with a water nozzle 35 that is connected to the carbonated water tank water supply pipe 14 b and injects cold water into the carbonated water tank 31. The water nozzle 35 is a well-known nozzle that jets the supplied cold water. The carbon dioxide gas filled in the carbonated water tank 31 by jet injection is easily contained in the cold water. The water nozzle 35 is sprayed in the vertical direction toward the bottom 31 a of the carbonated water tank 31. The jetted water collides with the bottom 31a of the carbonated water tank 31 and entrains carbon dioxide. Thereby, cold water and carbon dioxide are agitated, and the amount of carbon dioxide dissolved increases.

  The carbonated water extraction pipe 32 extends to near the lower part 31 a of the carbonated water tank 31. The bottom 31 a of the carbonated water tank 31 is provided with a cover portion 36 surrounding the periphery of the lower end 32 a of the carbonated water extraction pipe 32. The cover part 36 has a cylindrical shape whose upper end 36a is open. Thereby, the cover part 36 can prevent carbon dioxide from entering the carbonated water extraction pipe 32, and can guide the carbonated water to the carbonated water extraction pipe 32. Carbon dioxide gas is supplied from the gas pipe 33. The carbonated water tank 31 can be filled with carbon dioxide gas. In the carbonated water tank 31, a float switch 37 that operates according to the water level in the carbonated water tank 31, a thermometer 38 that measures the water temperature in the carbonated water tank 31, and the carbonated water tank 31 are heated. A heating device 39 is provided. The heating device 39 heats the water in the carbonated water tank 31 in order to circulate hot water in the carbonated water circulation path 85 described later. The heating device 39 may use a known heating device that can be used in water. An evaporator 54 is provided outside the carbonated water tank 31. The evaporator 54 operates the compressor 52 provided in the lower part of the water server 1 to cool the water in the carbonated water tank 31. The compressor 52 is used by switching each operation target of the cold water tank 11 and the carbonated water tank 31.

  FIG. 8 is a circuit diagram of the water server 1. Cold water extraction flow path 71 as a plurality of individual flow paths individually connected to each of tanks 11, 21, 31 via respective extraction pipes 13, 22, 32 of each tank 11, 21, 31, hot water The extraction flow path 72 and the carbonated water flow path 73 are connected to a common flow path 74 via a merging portion 47 in the valve block 41. The common flow path 74 is connected to the spout 3, and each type of water is poured out from the spout 3.

  9A is a front view of the valve block 41, FIG. 9B is a top view thereof, FIG. 9C is a sectional view taken along line IXC-IXC in FIG. 9B, and FIG. 9D is a sectional view taken along line IXD-IXD in FIG. . The valve block 41 is provided between each of the tanks 11, 21, 31 and the spout 3, and is a group of a plurality of on-off valves that open and close the flow paths of each type of water discharged to the spout 3. It is. The valve block 41 includes a cold water on / off valve 42 for opening and closing the cold water pouring channel 71, a hot water on / off valve 43 for opening and closing the hot water pouring channel 72, and a carbonated water on / off valve 44 for opening and closing the carbonated water pouring channel 73. And a common on-off valve 45 that opens and closes the common flow path 74 is provided. The cold water on / off valve 42, the hot water on / off valve 43, and the carbonated water on / off valve 44 correspond to individual on / off valves. Each on-off valve 42-44 may be called an individual on-off valve.

  As can be seen from FIGS. 9C and 9D, the cold water on / off valve 42, the hot water on / off valve 43 and the common on / off valve 45 have the same structure. The cold water on / off valve 42 is a well-known electromagnetic valve that is driven by a solenoid. The cold water on-off valve 42 is provided with a plunger 42b to which the valve 42a is fixed, a coil 42c for reciprocatingly driving the plunger 42b, and a spring 42d for biasing the plunger 42b in a direction in which the valve 42a is closed. By the operation of the solenoid, the plunger 42b is driven to reciprocate, and the valve 42a is opened and closed. On the other hand, the carbonated water on-off valve 44 has a flow path through the holder 44d by the plunger 44b having the packing 44a, the coil 44c for reciprocating the plunger 44b, the holder 44d in contact with the packing 44a, and the reciprocating driving of the plunger 44b. This is a known electromagnetic valve provided with a diaphragm valve 44e to be opened and closed.

  Each on-off valve 42 to 45 of the valve block 41 is configured integrally with a body 46. Each extraction channel 71 to 73 is connected to the common channel 74 at the junction 47 of the valve block 41. By opening any one of the cold water on / off valve 42, the hot water on / off valve 43, and the carbonated water on / off valve 44 and the common on / off valve 45, water of a type corresponding to the on / off valves 42 to 44 whose channels are open. Flows to the spout 3 via the common flow path 74.

  The junction 47 has a carbonated water extraction channel 73 as an individual channel connected to the carbonated water tank 31 as a specific tank and cold water extraction as an individual channel connected to the other tanks 11 and 21. A partition member 48 is provided to partition between the flow path 71 and the hot water discharge flow path 72. FIG. 20 is a perspective view showing the valve block 41 with the common opening / closing valve 45 removed. The partition member 48 is provided in the junction 47 so as to partition the carbonated water extraction channel 73 from the cold water extraction channel 71 and the hot water extraction channel 72, and the carbonated water extraction channel 73 is connected to the common channel 74. Leading to. Further, as will be described later, the partition member 48 is provided so as to connect the cold water pouring channel 71, the hot water pouring channel 72 and the common channel 74. The partition member 48 is provided so that the cold water extraction channel 71, the hot water extraction channel 72, and the carbonated water extraction channel 73 are positioned on the upstream side of the partition member 48 at the time of extraction. At least the hot water pouring flow path 72 and the carbonated water pouring flow path 73 are opposite to each other in the flow direction at the merging portion 47 (opposite directions). For example, the valve block 41 includes a T-shaped pipe. It is configured. The partition member 48 is provided so as to prevent the carbonated water flowing through the carbonated water extraction channel 73 from flowing into the cold water extraction channel 71 and the hot water extraction channel 72.

  21 is a cross-sectional view taken along line XXI-XXI in FIG. 9C. The partition member 48 extends to the vicinity of the upstream end portion of the common flow path 74 and guides carbonated water to the common flow path 74. Further, the partition member 48 is provided closer to the carbonated water extraction channel 73 side than the center of the common channel 74 so as not to disturb the flow of the cold water from the cold water extraction channel 71. This is to reduce the influence of the flow path of cold water or hot water being narrowed by the installation of the partition member 48, and prevents the discharge flow rate from decreasing. Thereby, it is possible to prevent the carbonated water that has flowed through the carbonated water extraction channel 73 via the junction 47 from flowing into the cold water extraction channel 71 and the hot water extraction channel 72. The shape of the partition member 48 is provided in the junction 47 so as to partition the carbonated water extraction channel 73 from the cold water extraction channel 71 and the hot water extraction channel 72. As long as it is provided so as to connect the cold water pouring flow channel 71 and the hot water pouring flow channel 72 and the common flow channel 74 while being guided to the common flow channel 74, an appropriate shape may be used. For example, the length of the partition member 48 desirably extends to the vicinity of the upstream end portion of the common flow path 74, but is common in the direction of the common opening / closing valve 45 as long as the flow path of each liquid can be secured. You may extend to the inside of the flow path 74. Further, as described above, the installation position of the partition member 48 is preferably closer to the carbonated water extraction flow path 73 than the center of the common flow path 74, but is not limited to this, and the partition member depends on the discharge flow rate of each liquid. 48 positions may be determined.

  When carbonated water is poured into the cold water pouring channel 71 and the hot water pouring channel 72 through the junction 47 when the carbonated water is poured out, the cold water pouring channel 71 and the hot water pouring channel after the pouring is finished. 72, especially carbonated water may accumulate in the flow path between the junction 47 and the cold water on / off valve 42 and the hot water on / off valve 43. Then, when cold water or hot water is poured out next, carbonated water collected first is poured out, and the taste may be changed by mixing the carbonated water with cold water or hot water. By providing the partition member 48 in the junction 47, it is possible to prevent the carbonated water from flowing into the cold water extraction channel 71 and the hot water extraction channel 72. Further, the partition member 48 guides cold water or hot water flowing through the cold water extraction channel 71 and the hot water extraction channel 72 to the common channel 74.

  On the other hand, as shown in FIG. 22, the carbonated water pouring channel 73 is connected to the cold water pouring channel 71 and the hot water pouring channel 72 through the common channel 74 in the junction 47. Thereby, even if the partition member 48 is provided in the junction 47, liquid can flow between the carbonated water extraction channel 73, the cold water extraction channel 71, and the hot water extraction channel 72. Therefore, although the 2nd cold / hot water circulation path 83 and the 3rd cold / hot water circulation path 84 which are mentioned later contain the junction part 47, hot water can be circulated by each circulation path 83,84. In addition, although the carbonated water tank 31 was demonstrated as a specific tank, it is not restricted to this. For example, a tank in which a beverage having a strong taste such as a fruit juice beverage, a colored beverage, or an alcoholic beverage such as beer is stored may be used. The liquid stored in the specific tank can be prevented from being mixed with other liquids.

  Returning to FIG. 8, the description of the circuit diagram will be continued. The cold water tank 11 is connected to the spout 3 via a cold water pouring channel 71 and a common channel 74 connected to the cold water pouring channel 71 via a junction 47. The cold water discharge channel 71 is provided with a cold water on-off valve 42 and the common channel 74 is provided with a common on-off valve 45, and the valve opens and closes according to the operation. The hot water tank 21 is connected to the spout 3 via a hot water pouring channel 72 and a common channel 74 connected to the hot water pouring channel 72 via the junction 47. A hot water opening / closing valve 43 is provided in the hot water pouring channel 72, and the valve opens and closes according to the operation. The carbonated water tank 31 is connected to the spout 3 via a carbonated water extraction flow path 73 and a common flow path 74 connected to the carbonated water extraction flow path 73 through the junction 47. In addition to the carbonated water on / off valve 44, an on / off valve 91, a check valve 92, and a rectifying valve 93 are provided in the carbonated water discharge passage 73. A pressure reducing valve may be provided in place of the rectifying valve 93.

  Further, the cold water tank 11 is connected to the hot water tank 21 via the hot water tank water supply passage 75 via the hot water tank water supply pipe 14a, and the carbonated water tank water supply passage 76 via the carbonated water tank 31 and the carbonated water tank water supply pipe 14b. Connected with. A check valve 94 is provided in the hot water tank water supply passage 75. In the carbonated water tank water supply flow path 76, a DCBL pump 95, a check valve 96, a three-way valve 97, a booster pump 98 and a check valve 99 which are selected by the three-way valve 97, an on-off valve 100, A check valve 101 is provided.

  A branch part 76a is provided between the booster pump 98 and the check valve 99 of the carbonated water tank water supply channel 76 and the on-off valve 100, and the carbonated water tank water supply channel 76 is connected to the hot water via the branch part 76a. Connected to the road 77. The hot water connection path 77 has an on-off valve 102 and is connected to the hot water tank 21. Further, a branch portion 76 b is provided between the check valve 96 and the three-way valve 97 of the carbonated water tank water supply channel 76. A branch portion 73 a is provided between the check valve 92 and the pressure reducing valve 93 in the carbonated water extraction flow path 73. The branch part 76 a of the carbonated water tank water supply channel 76 and the branch part 73 a of the carbonated water extraction channel 73 are connected by a carbonated water connection path 78. The carbonated water connection path 78 is provided with an on-off valve 103.

  The carbonated water tank 31 is connected to the carbon dioxide gas cylinder 104 and the gas pipe 33 through a gas flow path 79. In the gas flow path 79, a ball valve 106, an air filter 107, a pressure switch 108, an on-off valve 109, and a check valve 110 are provided. In addition, a first branch path 79b is connected to the gas flow path 79 via a first branch portion 79a. A pressure switch 111 is provided in the first branch path 79b. Furthermore, a second branch path 79d and a third branch path 79e are connected to the first branch path 79b via a second branch section 79c. A relief valve 112 is provided in the second branch path 79d. The third branch path 79e is provided with an on-off valve 113 and a HEPA filter 114. In order to supply carbon dioxide gas to the carbonated water tank 31, appropriate members such as an on-off valve and an air filter are arranged. The hot water tank 21 and the cold water tank 11 are connected by a cold water connection path 80 via an air vent hose 23. The water pack WP and the cold water tank 11 are connected to each other by a water supply channel 81 via a water supply pipe 12.

  The supply channel corresponds to the carbonated water tank feed channel 76, and the carbonated water channel is a common flow in which the carbonated water extraction channel 73 and the carbonated water extraction channel 73 are connected via the junction 47. It corresponds to the path 74, and the connection path corresponds to the carbonated water connection path 78.

  FIG. 10 is a block diagram showing the configuration of the control system of the water server 1. The water server 1 is provided with a control unit 5. The control unit 5 includes a microprocessor, a ROM in which a program such as an operating system to be executed by the microprocessor is recorded, and an internal storage device such as a RAM that provides a work area for the microprocessor. It is. In the control unit 5, an appropriate logical device realized by a combination of computer hardware and predetermined software is realized. The control unit 5 includes the operation unit 4, the thermometers 19, 25, and 38 of the tanks 11, 21, and 31, the float switch 18 of the cold water tank 11, and the float switch 37 of the carbonated water tank 31 as input devices. 42-45, 91, 100, 102, 103, DCBL pump 95, booster pump 98, three-way valve 97, compressor 52, and heating devices 53, 39 are connected as output devices. The control unit 5 receives a signal corresponding to the operation accepted by the operation unit 4 and controls the operation of the output device described above.

(Pouring channel control)
When pouring cold water, the cold water on / off valve 42 of the cold water pouring channel 71 and the common on / off valve 45 of the common channel 74 are opened and the hot water on / off valve 43 and the carbonated water on / off valve 44 are closed. Cold water is poured from 3. When pouring hot water, the hot water on / off valve 43 of the hot water pouring channel 72 and the common on / off valve 45 of the common channel 74 are opened, and the cold water on / off valve 42 and the carbonated water on / off valve 44 are closed. Hot water is poured out from No.3. When carbonated water is poured out, the on-off valve 91 and the carbonated water on-off valve 44 of the carbonated water pouring channel 73 and the common on-off valve 45 of the common channel 74 are opened, and the on-off valve 103, the cold water on-off valve 42, and Carbonated water is poured out from the spout 3 by closing the hot water on-off valve 43.

(Cold and hot water sterilization process)
In the water server 1, the tanks 11, 21, 31 and the flow paths in the server are periodically cleaned and sterilized. FIG. 11 is a flowchart showing the flow of the cold / hot water sterilization process. The cold / hot water sterilization step sterilizes the cold water tank 11, the hot water tank 21, and the flow path of the cold water and the hot water. The cold / hot water sterilization process is executed at an instruction from the operation unit 4 or at a preset time. The control unit 5 sequentially executes a sterilization process of the cold water tank 11 (step S1), a sterilization process of the booster pump 98 (step S2), and a pipe sterilization process (step S3). In addition, according to the instruction | indication from the operation part 4, you may make it perform the process selected among each process S1-S3 contained in a cold / hot water sterilization process.

  FIG. 12 is a flowchart for explaining the sterilization process of the cold water tank 11. The control unit 5 stops the compressor 52 of the cold water tank 11 (step S11). Cooling in the cold water tank 11 is stopped. The control unit 5 closes the on-off valve 100 and the common on-off valve 45 (step S12). Subsequently, the control unit 5 opens the cold water on-off valve 42, the hot water on-off valve 43, and the on-off valve 102, and closes the carbonated water on-off valve 44 (step S13). The control unit 5 connects the three-way valve 97 to the check valve 99 side (step S14).

  The control unit 5 controls the heating device 53 so that the water temperature in the hot water tank 21 is maintained at a predetermined temperature or higher. The control unit 5 operates the DCBL pump 95 (step S16) when the water temperature in the hot water tank 21 is equal to or higher than the specified temperature (step S15). Thereby, hot water circulates through the 1st cold / hot water circulation path 82 (dashed arrow of FIG. 8) including the cold water tank 11 and the hot water tank 21. FIG. The control unit 5 stops the operation of the DCBL pump 95 when the water temperature in the cold water tank 11 becomes equal to or higher than the specified temperature (step S17) (step S18). This state is maintained for a predetermined time, and the inside of the cold water tank 11 is sterilized. The control unit 5 determines whether or not the sterilization of the cold water tank 11 is finished (step S19), and when the sterilization is finished after a predetermined time, the current sterilization process is finished.

  FIG. 13 is a flowchart for explaining the sterilization process of the booster pump 98. The control unit 5 closes the cold water on-off valve 42 and opens the hot water on-off valve 43, the carbonated water on-off valve 44, and the on-off valve 103 (step S21). The control unit 5 connects the three-way valve 97 to the booster pump 98 side (step S22). Thereby, hot water circulates through the 2nd cold / hot water circulation path 83 (one-dot chain line arrow of FIG. 8) including the hot water tank 21. FIG. The control unit 5 operates the booster pump 98 for a predetermined time (step S23), and when the sterilization is completed after the predetermined time has elapsed (step S24), the operation of the booster pump 98 is stopped (step S25). The control unit 5 closes the on-off valve 102 (step S26), and ends the current sterilization process. When the on-off valve 102 is closed in step S27, the flow path of the hot water is changed to form the third cold / hot water circulation path 84 (two-dot chain arrow in FIG. 8).

  FIG. 14 is a flowchart for explaining a sterilization process for piping between the cold water tank 11 and the hot water tank 21. The control unit 5 operates the DCBL pump 95 for a predetermined time in a state where the third cold / hot water circulation path 84 is formed (step S31). Thereby, hot water circulates through the third cold / hot water circulation path 84. The control unit 5 stops the operation of the DCBL pump 95 (step S33) when the predetermined time elapses and the sterilization ends (step S32). Subsequently, the control unit 5 closes the cold water on-off valve 42, the hot water on-off valve 43, the carbonated water on-off valve 44, and the on-off valve 103 (step S34). As a result, the carbonated water connection path 78 is closed, and the extraction flow path can be formed. The control unit 5 operates the compressor 52 of the cold water tank 11 (step S35), stops the heating device 53 of the hot water tank 21 (step S36), and ends the current sterilization process. The hot water circulation path corresponds to the third cold / hot water circulation path 84.

(Carbonated water sterilization process)
FIG. 15 is a flowchart showing the flow of the carbonated water sterilization process. In the carbonated water sterilization step, the carbonated water tank 31 and the carbonated water flow path are sterilized. Similar to the cold / hot water sterilization process, the carbonated water sterilization process is executed at an instruction from the operation unit 4 or at a preset time. The control unit 5 sequentially executes a sterilization process (step S41) of the carbonated water tank 31, a pipe sterilization process (step S42), and a carbon dioxide reapplying process (step S43). In addition, according to the instruction | indication from the operation part 4, you may make it perform the process selected among each process S41-S43 contained in a carbonated water sterilization process.

  FIG. 16 is a flowchart for explaining the sterilization process of the carbonated water tank 31. The control unit 5 stops the operation of the compressor 52 of the carbonated water tank 31 (step S51). Subsequently, the control unit 5 stops the supply of carbon dioxide from the carbon dioxide cylinder 104 (step S52). The on-off valve 109 of the gas flow path 79 may be closed. The control unit 5 stops the operation of the booster pump 98 (step S53) and closes the on-off valve 100 (step S54). The control unit 5 releases the pressure in the carbonated water tank 31 (step S55), and operates the heating device 39 in the carbonated water tank 31 (step S56). The control unit 5 controls the heating device 39 so that the water temperature in the carbonated water tank 31 is maintained within the specified range (step S57). Thereby, the water in the carbonated water tank 31 is heated, becomes warm water, and the carbonated water tank 31 is sterilized. The carbonated water tank 31 is maintained in this state for a predetermined time. Control unit 5 will complete | finish this sterilization process, if predetermined time passes and sterilization is complete | finished (step S58).

  FIG. 17 is a flowchart for explaining a pipe sterilization process for sterilizing the carbonated water circulation path 85 (solid arrow in FIG. 8) including the carbonated water tank 31. The control unit 5 opens the on-off valves 91, 100 and 103 (step S61), and connects the three-way valve 97 to the booster pump 98 side (step S62). The control unit 5 operates the booster pump 98 for a predetermined time (step S63). Thereby, warm water circulates through the carbonated water circulation path 85 including the carbonated water tank 31. The control unit 5 stops the operation of the booster pump 98 when the predetermined time has elapsed and the sterilization of the carbonated water circulation path 85 is completed (step S64) (step S65). The control unit 5 closes the on-off valves 91, 100, 103 (step S66), stops the operation of the heating device 39 of the carbonated water tank 31 (step S67), and operates the compressor 52 of the carbonated water tank 31 (step S68). ) This sterilization process is finished. The carbonated water tank 31 is cooled again by the operation of the compressor 52.

  FIG. 18 is a flowchart for explaining the carbon dioxide reapplying step. After the pipe sterilization process, the water in the carbonated water tank 31 is cooled in step S68, but the carbon dioxide gas has been removed. For this reason, in the carbon dioxide reapplying step, carbon dioxide is included again in the cold water in the carbonated water tank 31. The control unit 5 opens the on-off valve 109 and supplies carbon dioxide gas into the carbonated water tank 31 (step S71). The control unit 5 opens the on-off valves 91, 100, 103 (step S72) and operates the booster pump 98 for a predetermined time (step S73). As an example of the predetermined time, the booster pump 98 operates for 2 minutes, and the cold water in the carbonated water tank 31 circulates in the carbonated water circulation path 85. In the carbonated water tank 31, cold water is jetted from the water nozzle 35 in a carbon dioxide atmosphere. Carbon dioxide dissolves in cold water, and carbonated water is generated.

  The control unit 5 stops the supply of carbon dioxide gas to the carbonated water tank 31 (step S75) when the reapplying of carbon dioxide gas ends after a predetermined time has elapsed (step S74). The control unit 5 closes the on-off valves 91, 100, 103 (step S76) and opens the on-off valve 102 (step S77). Thereby, the pressure applied in the carbonated water tank water supply flow path 76 is released. The control unit 5 closes the on-off valve 102 (step S79) when the pressure applied in the carbonated water tank water supply channel 76 is released after a predetermined time has elapsed (step S78), and ends the current process.

(Operation of valve block)
As described above, in the valve block 41, the cold water on / off valve 42, the hot water on / off valve 43, the carbonated water on / off valve 44, and the common on / off valve 45 as individual on / off valves are integrally provided by the body 46. When warm water flows through one of the flow paths of the valve block 41 by the integrated body 46, heat is transmitted to the other flow paths, and sterilization efficiency is improved. In addition, since heat is transferred to the flow path between the individual on-off valves 42 to 44 and the common on-off valve 45, water is accumulated in the pipe between the carbonated water on-off valve 44 and the common on-off valve 45. But heat can be transmitted and sterilized. Moreover, since the common flow path 74 is connected to the spout 3, the spout 3 is shared, and the spout 3 can be sterilized when hot water is poured out. Moreover, since there is only one spout 3, it is possible to prevent a pouring error.

  In a water server of a type that pours out a plurality of types of water, when sterilizing, hot water is circulated by connecting the upstream sides of individual open / close valves that individually open and close the flow paths of the tanks with connection paths. Then, each individual on-off valve cannot be sterilized. Therefore, in the water server 1 described above, the downstream sides of the individual on-off valves 42 to 44 are connected via the merging portion 47, and the common on-off valve 45 is provided in the common passage 74 connected to the merging portion 47. 74 and the spout 3 are connected. Thereby, by providing the junction 47 on the downstream side of the individual open / close valves 42 to 44, hot water can be circulated through the flow path including the individual open / close valves 42 to 44, and the spout 3 can be sterilized by sharing. Yes.

(Disinfection of carbonated water tank water supply channel and carbonated water connection channel)
The carbonated water circulation channel 85 is connected to a carbonated water tank feed channel 76 as a supply channel, a carbonated water extraction channel 73 as a carbonated channel, and a carbonated water connection channel 78 as a connection channel. Circulate. However, the carbonated water circulation path 85 does not include a channel from the cold water tank 11 to the branching portion 76b in the carbonated water cold water path 76, and the carbonated water circulation path 85 cannot be sterilized. In the water server 1, a flow path from the cold water tank 11 to the branch portion 76 b that cannot be sterilized by the carbonated water circulation path 85 is included in the third cold / hot water circulation path 84. Thereby, sterilization leakage can be prevented efficiently. Moreover, the carbonated water connection path 78 is not used at the time of normal extraction use, and a pool of water is generated. Since the third cold / hot water circulation path 84 also includes the carbonated water connection path 78, sterilization leakage can be prevented.

(Cool water flow path in carbon dioxide re-application process)
After circulating hot water in the carbonated water circulation path 85 and sterilizing the piping, the water in the carbonated water tank 31 is free of carbon dioxide. In order to cool this water and reapply carbon dioxide, a water circulation path is required. As this circulation path, the carbonated water circulation path 85 in the carbonated water sterilization process is used. The water server 1 can be made compact by using what is already provided without providing a new circulation path for the carbon dioxide reapplying step. In addition, it is not restricted to the path | route of the carbonated water circuit 85 mentioned above, What is necessary is just an appropriate circuit including the carbonated water tank 31. The carbonated water re-application process can be applied not only after the sterilization process but also when the carbon dioxide concentration of carbonated water is reduced during normal use. The carbonated water circuit 85 corresponds to the predetermined circuit.

(Sterilization of water supply piping)
FIG. 19 is a diagram for explaining the operation of the stopper 15. FIG. 19 shows the positional relationship between the position of the stopper 15 and the water supply pipe 12 when the cold water tank 11 is full. The water level S of the water stored in the cold water tank 11 is above the lower end 12a of the water supply pipe 12, and a contact portion 12b that contacts the water with a predetermined width W is formed in the lower part of the water supply pipe 12. When the cold water tank 11 is sterilized, the hot water in the cold water tank 11 becomes full, so that the contact portion 12b of the water supply pipe 12 comes into contact with the hot water, and the water supply pipe 12 is sterilized. Moreover, sterilization efficiency can be improved by making the material of the water supply piping 12 into SUS with good thermal conductivity. The width W of the contact portion 12b of the water supply pipe 12 may be set to a length that provides a sufficient sterilizing effect. The stopper portion 15b of the stopper 15 may be in contact with the lower end 12a of the water supply pipe 12, or may not be in contact. The contact part 12b should just be provided, and the positional relationship of the water supply piping 12 and the stopper 15 is good also as an appropriate structure.

(Production method of carbonated water)
As described above, the carbonated water tank 31 is a carbonator, and the carbonated water is generated by jetting cold water supplied from the cold water tank 11 into the carbonated water tank 31 in a carbon dioxide atmosphere by the water nozzle 35. . Although the water nozzle 35 attached to the upper part of the carbonated water tank 31 injects cold water in the vertical direction, it is not limited thereto, and cold water may be injected in an obliquely downward direction. What is necessary is just to attach to the carbonated water tank 31 so that the injection direction of the water nozzle 35 may become diagonally downward. By injecting cold water diagonally downward, the range in which the carbon dioxide gas is entrained is increased, and the amount of carbon dioxide gas dissolved is increased. The greater the force with which cold water jetted from the water nozzle 35 collides with the bottom 31a of the carbonated water tank 31, the greater the amount of cold water diffused and the greater the amount of carbon dioxide entrained. You may set the magnitude | size of the carbonated water tank 31 according to the injection capability of the water nozzle 35 installed. For example, if the water nozzle has the same spraying capacity, the tank height of the carbonated water tank 31 is preferably low.

  The present invention is not limited to the above-described form and can be implemented in various forms. For example, in the present embodiment, the valve block 41 has been described with an example in which the three individual on-off valves 42 to 44 are connected to the common on-off valve 45 through the junction 47, but the present invention is not limited thereto. The number of the individual on-off valves provided in the valve block 41 may be two, or four or more. By providing the body integrally, the sterilizing effect can be enhanced. Further, the individual on-off valves 42 to 44 and the common on-off valve 45 may be provided as independent on-off valves. If the individual open / close valves 42 to 44 are disposed in the individual flow paths 71 to 73, and the common open / close valve 45 is provided in the common flow path 74 connected to the individual flow paths 71 via the junction 47, respectively, It is not limited to the configuration of the valve block.

  Moreover, although this embodiment demonstrated the three tanks of the cold water tank 11, the hot water tank 21, and the carbonated water tank 31, the number of tanks and the kind of the liquid stored are not restricted to this. For example, the number of tanks of the water server 1 may be two or four or more. The present invention is not limited to the form of the water server, and the present invention may be applied to an apparatus for dispensing various beverages such as juice, beer, and tea. The present invention can be applied to an apparatus that dispenses various types of liquids.

  In this embodiment, the float-type stopper 15 is described as the blocking member that blocks the supply of the water supply pipe 12 of the cold water tank 11, but the present invention is not limited to this. An appropriate configuration is possible as long as the supply of water stops after the water supply pipe 12 contacts the water stored in the cold water tank 11. Moreover, the stopper 15 is not restricted to the form provided in the cold water tank 11. For example, a tank that stores room temperature water may be used. The present invention may be applied to a tank that needs to sterilize the water supply pipe 12 (liquid supply pipe).

1 Water server (liquid dispenser)
3 Outlet 11 Cold water tank 12 Water supply pipe 15 Stopper (blocking member)
21 Hot water tank 31 Carbonated water tank 41 Valve block 42 Cold water on-off valve (individual on-off valve)
43 Hot water on-off valve (individual on-off valve)
44 Carbonated water on-off valve (individual on-off valve)
45 Common open / close valve 47 Junction portion 71 Cold water pouring flow path 72 Hot water pouring flow path 73 Carbonated water pouring flow path (carbonated water flow path)
74 Common flow path 76 Carbonated water tank water supply flow path (supply flow path)
78 Carbonated water connection (connection)

In the liquid dispensing apparatus of the present invention, at least one of the plurality of tanks (11, 21, 31) for storing liquid is provided with a heating device (53, 39) for heating the stored liquid, A plurality of individual flow paths (71 to 73) individually connected to each of the plurality of tanks are connected to the common flow path (74) via the merging portion (47), and the spout provided in the common flow path In the liquid dispensing apparatus (1) communicating with (3), a plurality of individual on-off valves (42 to 44) provided in each of the plurality of individual flow paths to open and close the individual flow paths, and the merging portion A common on-off valve (45) for opening and closing the common channel between the outlet and the spout , one individual channel (72) connected to a tank provided with the heating device, and another At least one individual flow path (73) is connected via the common flow path. And those are.

In another liquid dispensing apparatus according to the present invention , at least one of the plurality of tanks (11, 21, 31) for storing the liquid is provided with a heating device (53, 39) for heating the stored liquid. A plurality of individual flow paths (71 to 73) individually connected to each of the plurality of tanks are connected to a common flow path (74) via a junction (47) and provided in the common flow path. A plurality of individual on-off valves (42 to 44) provided in each of the plurality of individual flow paths to open and close the individual flow paths, in the liquid pouring device (1) communicating with the spout (3); A common on-off valve (45) that opens and closes the common flow path between the junction and the spout, and the junction includes a specific tank (31) of any of the plurality of tanks, Connected individual flow path (73) and other tanks (11, 21) The partition member (48) may be provided for partitioning between the connected and the individual passages (71, 72). In this aspect, the specific tank may be a carbonated water tank (13). In this aspect, the partition member may be provided so as to prevent the liquid flowing through the individual flow path connected to the specific tank from flowing into the individual flow path connected to the other tank. Good.

In the on-off valve of the present invention, at least one of the plurality of tanks (11, 21, 31) for storing liquid is provided with a heating device (53, 39) for heating the stored liquid. A plurality of individual flow paths (71 to 73) individually connected to each of the tanks are joined to the merging section (4
7) an open / close valve (41) provided in the liquid dispensing device (1) connected to the common flow path (74) through 7) and communicating with the spout (3) provided in the common flow path. The plurality of individual on-off valves (42 to 44) that are provided in each of the plurality of individual channels and open and close each individual channel, and the common channel is opened and closed between the merging portion and the spout. A common on-off valve (45), wherein the individual on-off valves and the body (46) of the common on-off valve are integrally configured, and are connected to a tank provided with the heating device. The flow path (72) and the other at least one individual flow path (73) are connected via the common flow path .

Claims (10)

A heating device for heating the stored liquid is provided in at least one of the plurality of tanks for storing the liquid, and a plurality of individual flow paths individually connected to each of the plurality of tanks are connected via a junction. In the liquid dispensing apparatus connected to the common flow path and communicating with the spout provided in the common flow path,
A plurality of individual on-off valves provided in each of the plurality of individual flow paths to open and close each individual flow path;
A common on-off valve that opens and closes the common flow path between the junction and the spout;
A liquid dispensing device comprising:   The liquid dispensing apparatus according to claim 1, wherein the plurality of individual on-off valves and the common on-off valve are integrally configured.   The partition portion is provided in the merging portion to partition between an individual flow path connected to any one of the plurality of tanks and an individual flow path connected to another tank. The liquid dispensing apparatus according to 1 or 2. A heating device for heating the stored liquid is provided in at least one of the plurality of tanks for storing the liquid, and a plurality of individual flow paths individually connected to each of the plurality of tanks are connected via a junction. An open / close valve provided in the liquid dispensing device connected to the common flow path and communicating with the spout provided in the common flow path,
A plurality of individual on-off valves provided in each of the plurality of individual flow paths to open and close each individual flow path;
A common on-off valve that opens and closes the common flow path between the junction and the spout;
An on-off valve comprising a plurality of individual on-off valves and a body of the common on-off valve. A cold water tank that stores cold water, a hot water tank that has a heating device and stores hot water, a carbonated water tank that has a heating device and stores carbonated water, and a pour that dispenses each liquid stored in each tank An exit, and
A supply flow path connected to the cold water tank is connected to a carbonated water flow path connected to the spout via the carbonated water tank, and the carbonated water flow path is connected to a connection path via a branch portion, and the connection The hot water in the carbonated water tank circulates in the carbonated water circulation path that is connected to the supply channel through the junction and circulates, and is connected so as to circulate between the hot water tank and the cold water tank. In the liquid pouring device in which the hot water in the hot water tank circulates through the hot water circulation path,
The liquid pouring device, wherein the hot water circulation path includes a flow path from the cold water tank to the merging portion in the supply flow path.   The liquid dispensing apparatus according to claim 5, wherein the hot water circulation path includes the connection path. It has a heating device and is equipped with a carbonator that generates carbonated water by adding carbon dioxide to the water.
In a liquid dispensing apparatus in which hot water heated by the carbonator circulates through a predetermined circulation path including the carbonator,
A liquid pouring device that circulates water stored in the carbonator in the circulation path and increases a concentration of carbon dioxide in the water circulated in the carbonator. A tank for storing liquid;
A liquid supply pipe that is inserted into the tank and supplies liquid to the tank;
In a liquid dispensing apparatus comprising: a blocking member that operates according to a liquid level in the tank and blocks liquid supply from the liquid supply pipe;
A liquid dispensing apparatus in which the blocking member blocks supply of liquid when a lower end of the liquid supply pipe is positioned below the liquid level.   The liquid dispensing apparatus according to claim 8, wherein the tank is a cold water tank that stores cold water. A liquid supply pipe that supplies liquid can be installed in a tank inserted therein, operates according to the height of the liquid level in the tank, and is a blocking member that blocks supply of liquid from the liquid supply pipe,
A blocking member that blocks supply of liquid from the liquid supply pipe when a lower end of the liquid supply pipe is positioned below the liquid level.