JPH0543721Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The invention consists of a liquid storage tank that stores beverages such as coffee, black tea, and green tea, and a pouring valve that takes out the beverage in this liquid storage tank to the outside. The present invention relates to a hot water bath type heat retention device attached to a dispenser device including a plurality of dispensers arranged in parallel.

[Conventional technology]

When attaching a hot water bath type heat retaining device to a plurality of dispensers, there are two methods. One is to store multiple liquid storage tanks in a single storage tank and boil them together using hot water in the same storage tank, and the other method is to store each liquid storage tank in each storage tank. (An example of a method of heating one liquid storage tank in hot water is disclosed in Japanese Patent Application Laid-open No. 56-3019.)

[The problem that the idea aims to solve]

By the way, although the former method has the advantage of having a small number of component parts, the storage tank becomes large and the device concerned may become very large, so it should not be implemented when there are as many as 3 or 4 dispensers. is difficult. On the other hand, although the latter method can be easily implemented even when there are as many as three or four dispensers, it is necessary to separately provide a heat retaining device for each dispenser, which makes the device very expensive.

The present invention has been made to address the above-mentioned problems, and its purpose is to provide a hot water bath type heat-retaining device that can be compactly and inexpensively implemented in a dispenser device equipped with a plurality of dispensers.

[Means to solve the problem]

In order to achieve the above-mentioned object, the present invention includes a plurality of storage tanks that individually store each liquid storage tank, and a plurality of storage tanks that are arranged at approximately the same level as these storage tanks and that contain hot water inside. A single hot water supply tank that always stores a certain amount of hot water, each hot water supply valve provided in a passage connecting this hot water supply tank and each of the storage tanks, a sheathed heater disposed within the storage tank, and a sheathed heater disposed within the storage tank. and a control device that cooperates with these thermistors to control energization to each of the sheathed heaters to maintain the hot water temperature in each of the storage tanks at a heat retention set value. The hot water tank is connected to a boiler that produces and supplies hot water and steam via a hot water valve, and the hot water valve is opened and closed based on a float switch installed inside the hot water tank to adjust the liquid level in the hot water tank. It is desirable to maintain the set value.

[Functions and effects of the idea]

In the heat retaining device according to the present invention, hot water is supplied from the hot water tank to each storage tank based on the liquid level difference by opening each hot water supply valve at the same time as beverage is supplied into each liquid storage tank. A thermistor and a control device provided in each storage tank control the energization of the sheathed heater provided in each storage tank, thereby maintaining the water temperature in each storage tank at a heat retention setting value. Additionally, if the hot water tank is connected to the boiler via a hot water valve, the hot water valve is opened and closed based on a float switch installed inside the hot water tank, and the liquid level in the hot water tank is maintained at the set value. . The following effects can be obtained.

Therefore, in the heat retention device according to the present invention, (a) hot water heating can be carried out promptly as the beverage is supplied from each liquid storage tank. (b) Each sheathed heater functions to maintain the temperature of the hot water in each storage tank at the heat retention set value when the hot water supplied to the storage tank cools down, and is small and inexpensive. can. (c) Hot water is automatically supplied from the hot water supply tank to each storage tank based on the liquid level difference, and there is no need for a pump or other supply means, and it can be implemented at low cost. (d) If the hot water tank is connected to the boiler via the hot water valve, hot water can be supplied from the boiler to the hot water tank using the steam pressure of the boiler. (e) Since the hot water tank is shared by making it possible to supply hot water in the hot water tank to each storage tank via each hot water valve, the heat retention The device can be configured compactly and inexpensively. You can also expect similar effects.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

Figures 1 and 2 show a multi-dispenser consisting of four coffee dispensers A, B, C and D configured as one unit and three coffee dispensers configured as one unit. It is equipped with use dispensers E, F, and G, and these can be used by arranging them side by side.

As shown in Fig. 2, the coffee dispensers A, B, C, and D are arranged at the same level, and include a workbench H, a tableware storage container I for storing tableware such as cups, and a tableware storage container I for storing tableware such as cups. It is combined with accessory case J, dust box K, etc. to form a beverage manufacturing machine. Each of the coffee dispensers A, B, C, and D also has a liquid storage tank 11 that accommodates hot or iced coffee extracted by an extraction device to be described later, and a liquid storage tank 11 that dispenses coffee from the bottom of the liquid storage tank 11. (This solenoid valve and each solenoid valve explained below are all normally closed type) 12 for dispensing hot or iced coffee in the liquid storage tank 11. The liquid storage tank 11 is kept warm or cool by a heat/cold insulating device attached to the liquid storage tank 11. Each liquid storage tank 11 can accommodate approximately 20 cups of coffee, and each coffee dispenser A,
Pour switch A1 provided corresponding to B, C, D,
By pressing B1, C1, and D1 (see FIG. 2), each pouring valve 12 is opened for a set time and a cup of coffee is poured out.

As shown in FIGS. 1, 3 and 4, the extraction device includes coffee dispensers A, B, C,
Extractor 13 and rotating nozzle 1 provided corresponding to D
4. It is composed of an electromagnetic drip valve 15, a drip tank 16, a boiler 17, etc., and the drip tank 16 is configured to be shared by a pair of extractors 13, etc., and the boiler 17 is configured to be shared by a pair of drip tanks 16. It is composed of
Each drip switch A2, B2, shown in FIG.
By pressing C2 and D2, approximately 10 cups of coffee will be automatically brewed (drip).

Each extractor 13 is of a well-known type, and a filter and ground coffee beans (not shown) are placed in advance inside the extractor 13, and coffee is extracted with hot water spouted from a rotating nozzle 14 provided above. It is becoming more and more like this. Two rotary nozzles 14 are connected to a drip tank 16 via each electromagnetic drip valve 15, and when hot water is supplied from the drip tank 16, the rotary nozzles 14 rotate on their own axis and evenly distribute hot water to the coffee beans in the extractor 13. Sprinkle water.

The drip tank 16 is connected to the boiler 17 via a supply pipe 21, an electromagnetic hot water supply valve 22, and an electromagnetic steam supply valve 23 installed therein. In addition, an electromagnetic steam discharge valve 24 is attached to the drip tank 16, and three float switches 2
5, 26, 27 are attached, and the electromagnetic steam discharge valve 24 is connected to the dish storage container I.

The boiler 17 is well known and is capable of producing and supplying hot water and steam, and when the amount of hot water decreases, the water supply pump 28 and the electromagnetic water supply valve 2 are activated.
9, water (for example, tap water) is supplied. In addition, reference numeral 3 in Figures 1 and 3
The solenoid valve indicated by 1 is opened by pushing the steam supply switch 32 shown in FIG. 2, and is used, for example, to warm milk, etc. It is opened by pressing the hot water supply switch 34, and is used, for example, when dispensing hot water for tea.

The heat/cold storage device is composed of a heater and a cooler arranged around each liquid storage tank 11, and each operation of the heater and cooler is controlled by the liquid storage tank 1.
1, a thermistor 36 is provided in a storage tank 35 which stores a predetermined amount of water or hot water and whose upper end is sealed.
and is controlled by a control device 37. Furthermore, switching between the heater and the cooler is automatically performed by operating the respective changeover switches A3, B3, C3, and D3 shown in Fig. 2. D3
When the switch is operated to the hot side, the orange lamp integrated with each switch lights up, and when the switch is operated to the iced side, the blue lamp integrated with each switch lights up.

The heater is comprised of a well-known sheathed heater 38 disposed within the storage tank 35, a hot water tank 39 capable of supplying hot water into the storage tank 35, and the like. The sheathed heater 38 is formed in a circular shape along the bottom surface of the liquid storage tank 11 as shown in FIG. The temperature of the water inside the tank is maintained at a set temperature (e.g. 82 to 86 degrees Celsius). The hot water tank 39 is the first
As shown in the figure and FIG. 4, each storage tank 35
It is possible to supply hot water in advance to the storage tank 35 of the liquid storage tank 11 that stores hot coffee through each electromagnetic hot water supply valve 41, and the internal liquid level is between the float switch 42 and the boiler 17. The set value is maintained by an electromagnetic hot water valve 43 and a control device 37, and an exhaust hole 44 connected to the tableware storage I is provided at the top.

The cooler is composed of circulating cooling water that is supplied and discharged into the storage tank 35, and the cooling water is supplied to the bottom of the storage tank 35 through each electromagnetic water supply valve 45 from a cooling water circulation circuit that is shared by all the coolers. is configured to be The cooling water circulation circuit is composed of an ice storage 46, a circulation pump 47, a supply pipe 48, a return pipe 49, a discharge pipe 51, etc., and the supply pipe 48 has an electromagnetic water supply valve for supplying water to each storage tank 35. 45 are interposed therein, and an electromagnetic drain valve 52 is interposed in the discharge pipe 51. Further, each rising portion of the return pipe 49 liquid-tightly penetrates the bottom wall of each storage tank 35 and opens at the upper end of the storage tank 35, and cooling water flows into the return pipe 49 through the opening. A branch pipe 53 is connected to each rising portion, and an electromagnetic breather valve 54 is attached to the upper end of the branch pipe 53.

The ice storage 46 has an opening/closing door 55 at the front, and ice is supplied by falling from an upper portion of an upper ice storage 57 in a known auger ice maker 56 through a chute 58, or ice is poured in from the outside by opening the door 55. Ice is stored on an internal shelf plate 59 (water can pass through), and a supply pipe 48 is installed at the bottom.
One end is open, and one end of a return pipe 49 is open at the top. The ice storage 46 is also provided with a float switch 61 and an overflow pipe 62 at the bottom, and a water supply pipe (connected to the water supply) 64 equipped with an electromagnetic water supply valve 63 at the top. The ice stored in the upper ice storage 57 of the auger ice maker 56 can be taken out as appropriate through a chute 66 by pressing a switch 65 shown in FIG.

As shown in FIGS. 2 and 5, the tableware storage container I includes a stainless steel box 67 with a double wall structure and an opening in the front, and a coffee cup 68 (which is assembled into the box 67). It is composed of three drawers 69 capable of accommodating items such as
The space Ro formed between the double walls of 24 and exhaust hole 4
The steam discharged from 4 is supplied to the space Ro. Incidentally, excess steam is discharged from the space Ro through a discharge hole (not shown).

On the other hand, each use dispenser E, F, G is
As shown in FIG. 2, it is placed on the same level as the coffee dispensers A, B, C, and D, and is combined with a workbench L, a drawer-type refrigerator M, etc. into a unit. Furthermore, each of the youth dispensers E, F, and G is composed of a liquid storage tank 71 that accommodates a predetermined amount of youth, and an electromagnetic pour-out valve 72 that pours out the youth from the bottom of the liquid storage tank 71. The juice in the liquid storage tank 71 is kept cool by a cold storage device and is stirred by a stirring device. Each liquid storage tank 71 is removable by opening the front door 70, and each youth dispenser E,
Pour switches E1 and F corresponding to F and G
By pressing 1 and G1, each pouring valve 12 is opened for a set period of time, and one cup of juice is poured out.

As shown in FIG.
1 and a drawer-type refrigerator M, and includes an evaporator 73 and a pair of circulation fans 74 provided in the middle, and a compressor, condenser, etc. (not shown) that circulates refrigerant to the evaporator 73. Although omitted, it is provided in the machine room R2 below the refrigerator M), and the temperature of the refrigerator M is set to a set value (detected by a temperature sensor (not shown) installed near the refrigerator M). If it is higher than the machine room R2
The control device operates the circulation fan 74 when the compressor installed in the refrigerator compartment R1 operates and the temperature of the refrigerator compartment R1 becomes higher than a set value (detected by a temperature sensor, not shown, provided in the refrigerator compartment R1). 37.

The stirring device includes a stirring plate 75 that is swingably accommodated in each liquid storage tank 71 and whose upper end protrudes outside the tank.
(See FIG. 2), a plate cam 76 that swings this stirring plate 75, and a rotating shaft 78 that integrally holds each plate cam 76 and is driven by an electric motor 77. The juice in each liquid storage tank 71 is stirred gently to prevent it from settling.

The control device 37 not only controls the above-mentioned operations, but also controls various operations of the multi-dispenser, such as drip control (control of supply of hot water to the extractor 13), control of the supply of hot water in each storage tank 35, etc. It also controls the exchange of cooling water and hot water, controls the circulation of cooling water, and controls the operation of the auger ice maker 56.

According to drip control, each drip switch A
By pressing 2, B2, C2, and D2, the corresponding electromagnetic hot water supply valve 22 and electromagnetic steam discharge valve 24 open, hot water is supplied from the boiler 17 to the corresponding drip tank 16, and the hot water level in the drip tank 16 is raised to the upper level. When detected by the float switch 25, the electromagnetic hot water supply valve 22 and the electromagnetic steam discharge valve 24 are activated.
closes, the corresponding electromagnetic steam supply valve 23 and electromagnetic drip valve 15 open, and the hot water in the drip tank 16 is pressurized by steam and is ejected from the corresponding rotary nozzle 14 to the extractor 13. When the hot water level is detected by the central float switch 26, the electromagnetic drip valve 15 is closed for a set time (the time required for the hot water spouted into the extractor 13 to substantially complete dripping in the extractor 13), and the extractor 13 is closed. Hot water supply to 13 was suspended,
After the set time has elapsed, the electromagnetic drip valve 15 opens again and the hot water in the drip tank 16 is again spouted from the rotary nozzle 14 to the extractor 13, and when the hot water level in the drip tank 16 is detected by the lower float switch 27. Then, after a predetermined delay time (the time required for the hot water at the bottom of the drip tank 16 to be completely drained), the electromagnetic drip valve 15 and the electromagnetic steam supply valve 23 are closed, and the electromagnetic steam discharge valve 24 is opened for a predetermined time. A series of operations is obtained in which the steam remaining in the drip tank 16 is discharged into the space Ro of the dish storage container I.

In addition, according to the exchange control of cooling water and hot water in each storage tank 35, each changeover switch A3, B3, C
3. By switching D3 to the hot side, the circulation pump 47 is stopped for a predetermined time, and the electromagnetic water supply valve 45 provided in the corresponding storage tank 35 and the electromagnetic drain valve 52 provided in the discharge pipe 51 are opened for a predetermined time, and other All the electromagnetic water supply valves 45 are closed for a predetermined period of time to empty the corresponding storage tank 35, and then the electromagnetic water supply valve 45 and the electromagnetic drain valve 52 are closed, and the other electromagnetic water supply valves 45 are switched to each changeover switch A.
3, B3, C3, and D3 (if switched to the hot side, the closed state; if switched to the iced side, the open state), and the corresponding electromagnetic hot water valve 41 and electromagnetic When the breather valve 54 opens, the hot water in the hot water tank 39 reaches the specified level (float switch 42) in the corresponding storage tank 35.
is the level defined by the return pipe 49
This results in a series of operations in which the hot coffee in the corresponding liquid storage tank 11 is accurately boiled, and each changeover switch A3, B
By switching 3, C3, and D3 to the ice side, the corresponding electromagnetic water supply valve 41 and electromagnetic breather valve 54 are closed, the circulation pump 47 is stopped for a predetermined period of time, and the corresponding electromagnetic water supply valve 45 and electromagnetic drain valve 52 are closed to a predetermined value. Time-open and other electromagnetic water supply valve 45
are all closed for a predetermined period of time to empty the corresponding storage tank 35, and then the electromagnetic drain valve 52 is closed and the circulation pump 47 is started to supply cooling water to the corresponding storage tank 35. As a result, the coffee in the corresponding liquid storage tank 11 is appropriately cooled. In addition, when the temperature of the hot water mentioned above decreases, the sheathed heater 38
cooperates with the thermistor 36 to maintain the water temperature in the storage tank 35 at the heat retention setting value.

Furthermore, according to the cooling water circulation control, any one of the changeover switches A3, B3, C3, and D3 is maintained on the ice side, and the required amount of water is stored at the bottom of the ice storage 46 by the float switch 61. When detected, the circulation pump 47 is activated, and the cooling water flows into the corresponding storage tank 35 from the bottom thereof, and flows into the return pipe 49 from the upper end opening of the rising part of the return pipe 49 to the ice storage 46. In the return ice storage 46, the ice is directly applied to the ice on the shelf board 59 and cooled while flowing down, and is sucked into the circulation pump 47 again and circulated. The iced coffee stored in the container 11 is efficiently cooled. Further, when the water temperature in the corresponding storage tank 35 reaches the cold storage setting value (for example, 7 to 9°C) due to the above-mentioned circulation of the cooling water, the corresponding electromagnetic water supply valve 45 closes to prevent unnecessary circulation of the cooling water. Prevented. In addition, float switch 6
1, when it is not detected that the required amount of water has accumulated at the bottom of the ice storage 46, the electromagnetic water supply valve 6
3 is opened and water is supplied from the water supply pipe 64, and when the ice melts and the water level in the ice storage 46 reaches a specified value, the water is discharged outside the ice storage 46 through the overflow pipe 62 and overflows from the door 55. Never.

Further, according to the operation control of the auger type ice maker 56, the ice making operation is started when the multi-dispenser starts to be used, and the amount of ice in the ice storage 46 is increased to a specified amount (not shown). (detected by the detection means), the ice making operation is stopped.

By the way, in this embodiment, as is clear from the above description, in the heat/cold storage device that keeps the coffee in each storage tank 11 hot/cold,
As a heater, there are a plurality of storage tanks 35 that separately accommodate each of the liquid storage tanks 11, and are arranged at approximately the same level as these storage tanks 35 and connected to each storage tank 35 via each electromagnetic hot water supply valve 41. together with a single hot water tank 39 connected to the boiler 17 via an electromagnetic hot water valve 43, each thermistor 36, each sheathed heater 38, and the control device 3.
7th grade has been adopted. Therefore, if each changeover switch A3, B3, C3, D3 is operated to the hot side when hot coffee is extracted and supplied into each liquid storage tank 11, each hot water supply valve 41 opens as described above. from the hot water tank 39 to each storage tank 3.
5, hot water is supplied by the liquid level difference without using a supply means such as a pump, and hot water can be quickly heated. Furthermore, the supply of electricity to each sheathed heater 38 is controlled by a thermistor 36 and a control device 37 provided in each storage tank 11.
The temperature of the hot water inside 1 is maintained at the heat retention setting value. This temperature maintenance is performed by each sheathed heater 38 when the hot water supplied to each storage tank 11 has cooled down, and each sheathed heater 38 can be small and inexpensive. In addition, hot water tank 3
9 connects each storage tank 35 via each electromagnetic hot water supply valve 41
It is connected to the boiler 17 via the electromagnetic hot water valve 43, and is commonly used and has a compact and inexpensive structure.
3 is opened and closed based on the float switch 42,
The liquid level in the hot water tank 39 is maintained at the set value. In this case, hot water is supplied from the boiler 17 to the hot water tank 39 using the steam pressure of the boiler 17.

In addition, as a cooler for the heat/cold storage device, cooling water is used which is supplied into the storage tank 35 housing the liquid storage tank 11 and discharged, cooled by ice in the ice storage 46 and circulated by the circulation pump 47. Therefore, it is only necessary to provide a minimum gap between each liquid storage tank 11 and the storage tank 35 to accommodate the required amount of water, and the diameter of the storage tank 35 can be reduced, making it possible to downsize the device. can. Also,
When a large number of liquid storage tanks 11 are provided in parallel and used as in this embodiment, cooling water supply sources (ice storage 46 and Circulation pump 47
etc.) and can be implemented at extremely low cost. Furthermore, in a hot water bath using the sheathed heater 38 or the like, there are no obstructive members around the outer periphery of the liquid storage tank 11, and heat can be efficiently maintained.

In addition, since the boiler 17 is used to supply hot water for dripping and hot water for hot water heating, each operation can be performed efficiently in a short time.
is opened, and the steam remaining in the supply pipe 21 and the drip tank 16 flows into the space Ro formed between the double walls of the box body 67 through the connecting pipe Po, and the coffee cups stored in the tableware storage I are thereby 6
Class 8 tableware is heated. In this way, in this embodiment, the steam remaining in the supply pipe 21 and the drip tank 16 after dripping is completed (steam used for dripping) is guided to the tableware storage container I, and the heat of the steam is used to make coffee. Since the device is designed to heat tableware such as cups 68, the tableware can be heated economically, and the steam led to the tableware storage container I is heated in the space formed between the double walls of the box body 67.
It only flows into Ro and does not flow into the box body 67,
You can dry, heat, and keep dishes warm without getting them wet.

[Brief explanation of the drawing]

Fig. 1 is a schematic configuration diagram of a multi-dispenser equipped with a heat retention device according to the present invention, Fig. 2 is a front view of the multi-dispenser, Fig. 3 is an enlarged plan view of the coffee dispenser portion of the multi-dispenser, 4 is a schematic sectional view taken along the - line in FIG. 2, and FIG. 5 is a schematic sectional view taken along the - line in FIG. 2. Explanation of symbols, 11...Liquid storage tank, 12...Blowout valve, 17...Boiler, 35...Storage tank, 3
6...Thermistor, 37...Control device, 38...
Sealed heater, 39...Hot water tank, 41...Hot water valve, 42...Float switch, 43...Hot water valve, A, B, C, D...Coffee dispenser.

Claims (1)

[Scope of claim for utility model registration] (1) A liquid storage tank for storing beverages such as coffee;
A hot water bath type warming device attached to a dispenser device comprising a plurality of dispensers each having a pouring valve for taking out the beverage in the liquid storage tank to the outside, in which each of the liquid storage tanks is separated from the other. a single hot water tank that is placed at approximately the same level as the storage tanks and that always stores a certain amount of hot water therein; A hot water supply valve, a sheathed heater disposed within the accommodation tank, a thermistor disposed within the accommodation tank, and working together with these thermistors to control energization to each of the sheathed heaters to control electricity supply to each of the sheathed heaters. A heat retention device for a dispenser device that includes a control device that maintains the temperature of the water inside at a heat retention set value. (2) The hot water tank is connected to a boiler that produces and supplies hot water and steam via a hot water valve, and the hot water valve is opened and closed based on a float switch installed inside the hot water tank, so that the hot water tank is opened and closed. Claim 1 wherein the liquid level is maintained at a set value.
Heat retention device for the dispenser device described.