JP2000179942A - Water heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To rapidly and effectively output a hot water drink of a stable flow rate and stable temperature by eliminating a disadvantage that, in the case of outputting hot water of a heater, when a long time is elapsed after heating to a preheating temp., a temperature distribution of water in a heating container is generated by a water convection to bring about the state that upper water is hot but lower water is tepid, and the distribution itself does not change only by raising water temperature of the entirety even by reheating as it is. SOLUTION: It the case of outputting a command for selling, warm water in a heating container 3 is heated while circulating the water by a pump 5 until the water becomes a set temperature (sellable temperature). When the water uniformly becomes the set temperature (sellable temperature), a water supply valve 2 is opened to supply water to the container 3 and a necessary amount for a storage container 4 is simultaneously lifted. A hot water valve 6 is opened to supply the hot water. Thus, the hot water in the container 3 is lifted to the container 4, and output by the valve 6, thereby supplying a drink for preventing changes in temperature of primary and secondary hot waters and output hot water amount.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water supply device having a function of discharging hot water quantitatively.

[0002]

2. Description of the Related Art Here, a cup type vending machine will be described as an example.

In a conventional hot water supply device of a cup-type vending machine, heating of water in a hot water tank to a constant temperature is controlled by a heater based on a temperature detected by a thermistor.

[0004] Such a hot water supply apparatus requires a rise time from the start of energization of the heater to the rise of hot water at a set constant temperature at which water can be sold. It is usually equipped with a relatively large capacity hot water tank that stores about 10 liters of hot water, and it can be sold at all times by energizing and controlling the insulated heater to a set constant temperature at which it can be sold. The size of the tank was increased and the power consumption of the heater was increased.

In order to solve the above problems, Japanese Patent Laid-Open Publication No.
No. 7695 discloses a method disclosed.

Hereinafter, the above-described conventional hot water supply apparatus will be described with reference to the drawings. FIG. 9 is a configuration diagram showing a configuration of a conventional hot water supply device for a cup-type vending machine.

In FIG. 9, 1 is a water reservoir,
This is a water storage container that temporarily stores water used to produce a beverage. Reference numeral 3 denotes a heating vessel, in which a heating element for heating water supplied by the water reservoir 1 by induction heating or the like is provided. An outlet thermistor 3 b detects the temperature of the outlet of the heating vessel 3 of the hot water heated by the heating vessel 3. Reference numeral 5 denotes a hot-water valve for supplying or stopping hot water as needed. Reference numeral 8 denotes a powder raw material container for storing powder raw materials such as coffee, sugar, and cream, and carrying out the raw materials necessary for sale.
Reference numeral 8a denotes a shooter for guiding the powder raw material in the powder raw material container 8. 9 is a mixing ball,
Hot water from the hot water and powder raw material container 8 to shooter 8
This is to stir the raw material carried out via a. 1
Reference numeral 0 denotes a cup, which is a container for a beverage to be sold. Numeral 11 denotes a nozzle for guiding the beverage stirred by the mixing ball 9 to the cup 10.

[0008] The operation of the hot water supply device for a cup-type vending machine configured as described above will be described below.

In the standby state for sales, the water supplied from the water reservoir 1 to the heating container 3 is heated and kept at a predetermined preheating temperature, and when a sales command is issued, the temperature is raised to the set salable temperature and the temperature is increased. 8 is supplied to the mixing ball 9 together with the powdered raw material in 8, and is poured into the cup 10 after being stirred and mixed. Therefore, the hot water tank is not used, and the small-capacity heating vessel 3 is used in the middle of the hot water supply path. Then, the temperature of the water in the heating container 3 is raised to a temperature at which the water can be sold.

[0010]

However, in the above-mentioned conventional configuration, after the sales command is issued, the temperature of the heat-retaining water in the heating vessel 3 is increased, and after the temperature reaches the sales temperature, the hot water is supplied to the mixing ball 8. It takes time to take a hot water.

[0011] Further, after a long time after heating to the preheating temperature, a temperature distribution occurs in the warm water in the heating vessel 3 due to the action of convection of water, and the upper water is hot and the lower water is lubricious. However, even if it is reheated as it is, only the overall water temperature rises, and the temperature distribution still has a problem.

[0012] In addition, two or more taps are performed to produce a full drink, but when a small amount of tap is supplied, the flow rate fluctuates.

In addition, when the outside air temperature is low, the heat loss of the heating container itself is radiated, thereby causing an energy loss.

The present invention solves the above-mentioned conventional problems and provides a hot water supply apparatus capable of quickly supplying hot water having a stable flow rate and a stable temperature.

[0015]

SUMMARY OF THE INVENTION In order to attain this object, the present invention provides a hot water supply system in which hot water in a heating vessel is pumped to a hot water storage vessel so that hot water having a stable flow rate and a stable temperature can be quickly discharged. An apparatus can be provided.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION
A water supply means for supplying water, a heating container equipped with a heating element for heating the water supplied by the water supply means by induction heating or the like, and temporarily storing a fixed amount of hot water heated by the heating container, A hot water storage container A equipped with a circulation port for circulation and connected to the heating container,
A hot water valve that is connected to the hot water supply port for discharging or stopping hot water as needed, a pump that normally circulates hot water and discharges hot water via the hot water valve when hot water is supplied, the hot water storage container A and the pump. And a circulation pipe A for circulating hot water by connecting the water supply means between the hot water storage container A and the pump and connecting the pump and the heating container.

When the water supply means is opened, water is supplied to the heating container, and when the amount of water required for sale is supplied, the water supply means is closed, and the water is passed through the circulation pipe A by a pump while heating the water by induction heating or the like. Then, by circulating the hot water, the temperature of the hot water is made uniform, and the temperature of the hot water is heated or not heated so as to reach the preheating temperature by heating the heating vessel or not, and the apparatus is on standby. Here, when a command to perform hot water is issued, the hot water in the heating vessel is heated while circulating with a pump until the hot water reaches a sellable temperature. By opening,
At the same time as supplying water to the heating container, a certain amount of warm water is pumped into the hot water storage container A, and the hot water is opened by opening the hot water valve. Here, as the hot water discharge pattern, there are cases where the hot water is discharged twice, such as the primary hot water and the secondary hot water. Temperature distribution occurs in the hot water inside, the temperature of the primary hot water and the secondary hot water fluctuates, and as a result, the temperature of the hot water discharged becomes unstable,
When a small amount of hot water is supplied, the flow rate fluctuates, and thus the amount of hot water varies. Further, besides the above-described two-time tapping, tapping may be performed three or more times depending on the case, so that the fluctuation increases. However, by pumping a certain amount of hot water from the hot water in the heating container into the hot water storage container A and tapping the hot water with a hot water valve,
It is possible to supply a beverage in which the temperature of the hot water of the primary hot water and the secondary hot water and the fluctuation of the amount of the hot water are prevented.

The invention according to claim 2 of the present invention further comprises:
Temporarily store a fixed amount of warm water heated by a heating vessel,
The hot water storage container B connected to the heating container, the heating container and a pump are connected, the water supply means is connected between the heating container and the pump, and the pump and the heating container are connected, so that hot water is supplied. And a circulation pipe B for circulating water.

Then, the hot water storage container B is provided in the heating container,
By connecting the heating vessel circulation pipe to the top of the heating vessel,
Pumping a certain amount of warm water into hot water storage container B, and circulating and heating the water supplied to pump it up with a pump, enables preliminary heating for the next sale and requires continuous sales in a short time In such a case, it is possible to respond sufficiently.

The invention according to claim 3 of the present invention further comprises:
In order to heat the hot water storage container B, there are provided a heating heater equipped with a heating element on the exterior of the hot water storage container B, and control means for controlling the energization of the heating heater.

Then, when the command of the hot water is issued,
A fixed amount of hot water is pumped into hot water storage container B, and hot water is supplied by opening a hot water valve. However, when the outside air temperature is low, heat loss in hot water storage container B causes the temperature of the hot water to decrease. Is mounted on the exterior of the hot water storage container B, and the heating heater is energized to perform heating. This makes it possible to supply a beverage in which the temperature of hot water is prevented from lowering even when the outside air temperature is lower. Further, when a fixed amount of hot water is stored in the hot water storage container B, reheating can be performed.

The invention according to claim 4 of the present invention further comprises:
As an internal configuration of the hot water storage container B, a hot water storage portion main body and a lower portion of the hot water storage portion main body, a water supply passage to the hot water storage portion main body, a suction portion for connecting to a heating container, and a water supply passage of the suction portion are provided. A hot water storage container C that is connected and has a discharge portion for connecting the hot water valve formed therein, and a space between the suction portion and the discharge portion that is equal to or less than half the volume of the hot water storage portion main body, and a component of the hot water valve, A hot-water valve O-ring, which is a seal component for preventing hot-water leakage, and a water-stop packing for closing hot water, which is a component of the hot-water valve, are provided.

And when the command of the hot water is issued,
A fixed amount of hot water is pumped into the hot water storage container B and the hot water is opened by opening the hot water valve. During the waiting period, it is desired to keep the water level below the heating container, but the hot water valve has a rubber hot water valve O as a component. There is a ring and a water-stop packing.Drying during the waiting period and repeated wetting at the time of pumping will promote deterioration.If the water level of the hot water valve is maintained, the temperature of the hot water from the hot water valve to the heating container will be lower than the heating container. The temperature of the hot water discharged from the hot water becomes lower than that of the hot water, but the amount of dead water in the suction part and the discharge part is reduced to less than half of the capacity of the hot water storage part body by the structure of the hot water storage vessel C. Convection between the following hot water and dead water in the suction section and the discharge section can minimize the temperature of the dead water, so that hot water with a reduced temperature can be supplied.

The invention according to claim 5 of the present invention further comprises:
A built-in hot water storage container that is provided inside the heating element of the heating container and temporarily stores a fixed amount of hot water heated by the heating container, and a heat source that directly heats the water to the hot water with the components of the heating container. A body and a component part of the heating vessel, which are provided outside the heating element, and include a coil for generating heat when the heating element is energized.

Then, when the command of the hot spring is issued,
Heat it while circulating it with a pump until it reaches the temperature at which it can be sold, and when the hot water reaches the temperature at which it can be sold uniformly, open the water supply valve and supply water, and at the same time, pump a fixed amount of hot water into the built-in hot water storage container and turn on the hot water valve. Open the bath to open. As described above, the hot water in the built-in hot water storage container is kept warm in the circulation hot water outside the built-in hot water storage container, so that it is possible to supply hot water in which the temperature is prevented from lowering. In addition, by incorporating the hot water storage container B inside the heating container, it is possible to reduce the size of the entire heating device.

The invention according to claim 6 of the present invention further comprises:
A heat insulating case, which is provided on the outer periphery of the heating container and insulates the heating container, and insulates the entire hot water supply apparatus including the heating container, the hot water storage container B, the hot water valve, the pump, and the circulation pipe B. Have.

The heating element is heated from water to hot water by a heating element that is heated by energizing a coil such as induction heating, which is a component of the heating vessel. The heating element from the coil itself is connected to the coil of the heating vessel. By equipping the heating container with a heat insulating material, the heat can be effectively used for heating without releasing heat. In addition, heat loss can be prevented by providing a heat insulating case for heat radiation from the hot water storage container B, the heating container, the circulation pipe B, the pump and the hot water valve of the hot water supply device. Becomes In addition, by making the outer cover of the heat insulating case metallic or flame-retardant, even if fire occurs due to empty cooking or the like, it is possible to limit internal ignition.

The invention according to claim 7 of the present invention further comprises:
A distributor equipped with each layer for distributing hot water discharged from the hot water valve to a path requiring hot water, and a movable device for moving the hot water discharged from the hot water valve to each layer of the distributor are provided. I have.

Further, depending on the hot water supply device, a plurality of hot water valves may be required, but the cost increases and the amount of dead water increases. Therefore, by injecting hot water from the hot water valve into each distributor using a movable device, the hot water valve can be minimized, and it is possible to cope with dead water resistance at low cost. Was.

The invention according to claim 8 of the present invention further comprises:
An extraction pump is provided to extract hot water from the hot water valve.

The hot water discharged from the hot water valve is injected into the next step by natural fall due to the height difference. However, due to the downsizing of the hot water supply device and the like, a difference in height from the hot water valve can be obtained. Although it may be difficult, an extraction pump is installed after the hot water valve, and the extraction pump is operated at the same time as the hot water from the hot water valve, so that the next process is configured when there is no height difference or above the hot water valve. In this case, the injection can be easily performed. In addition, by providing the extraction pump as compared with the natural fall due to the height difference, the extraction speed can be improved, and the sales time can be shortened.

[0032]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a hot water supply apparatus according to the present invention will be described below with reference to the drawings. The same components as those in the related art are denoted by the same reference numerals, and detailed description is omitted.

(Embodiment 1) FIG. 1 is a block diagram of a hot water supply apparatus according to Embodiment 1 of the present invention.

In FIG. 1, 1 is a water reservoir,
This is a water storage container that temporarily stores water used to supply drinking water. Reference numeral 2 denotes a water supply valve, which is a water supply means for discharging or stopping water stored in the water reservoir 1 as necessary. Reference numeral 3 denotes a heating vessel, in which a heating element for heating the water supplied by the water supply valve 2 by induction heating or the like is provided. An outlet thermistor 3a detects the temperature of the outlet of the heating vessel 3 of the hot water heated by the heating vessel 3. Reference numeral 3b denotes an inlet thermistor for detecting the temperature of the inlet of the heating vessel 3 of the hot water heated by the heating vessel 3. Reference numeral 4 denotes a hot water storage container A, which is provided with a circulation port for temporarily storing a fixed amount of hot water heated by the heating container 3 and circulating the hot water, and is connected to the heating container 3. Reference numeral 5 denotes a hot water valve, which is connected to the hot water storage container A4 and supplies or stops hot water as needed. Reference numeral 6 denotes a pump, which normally circulates hot water and discharges hot water via the hot water valve 5 when tapping. Reference numeral 7 denotes a circulation pipe A which connects the hot water storage container A4 and the pump 6, connects a water supply means between the hot water storage container A4 and the pump 6, and connects the pump 6 and the heating container 3 to circulate hot water. It is. Reference numeral 8 denotes a powder raw material container for storing powder raw materials such as coffee, sugar, and cream, and carrying out the raw materials necessary for sale. Reference numeral 8a denotes a shooter for guiding the powder raw material in the powder raw material container 8. Reference numeral 9 denotes a mixing ball for stirring the hot water discharged from the hot water valve 5 and the raw material discharged from the powder raw material container 8. Reference numeral 10 denotes a cup, which is a container for a beverage to be sold.
Numeral 11 denotes a nozzle for guiding the beverage stirred by the mixing ball 9 to the cup 10.

The operation of the heating device configured as described above will be described below. The water stored in the water reservoir 1 is supplied to the heating container 3 by opening the water supply valve 2, and if the amount of water required for sale is supplied, the water supply valve 2 is closed and the water is heated by induction heating or the like. The temperature of the hot water is made uniform by circulating the hot water through the circulation pipe A7 in the direction of the thin line arrow by the pump 6, so that the outlet thermistor 3a and the inlet thermistor 3b reach the set temperature (preheating temperature). The temperature of the warm water is detected, and the heating element of the heating vessel 3 is heated or non-heated to adjust the temperature and stand by.

However, steam (bubbles) generated during circulation is discharged from the upper part of the hot water storage container A4. Here, when a command for selling is issued, the hot water in the heating vessel 3 is heated while being circulated by the pump 6 until it reaches the set temperature (sellable temperature), so that the hot water is uniformly at the set temperature ( When the temperature reaches a temperature at which the hot water can be sold, the water supply valve 2 is opened to supply water to the heating container 3, and at the same time, a fixed amount of hot water is pumped in the hot water storage container 4 in the direction indicated by the thick line, and the hot water valve 5 is opened to discharge hot water. The discharged hot water and the powder raw material in the powder raw material container 8 are poured into a mixing ball 9 via a shooter 8a, mixed with stirring, and then poured into a cup 10 via a nozzle 11.

[0037] Here, as a normal hot water discharge pattern, there are a primary hot water in which a powdery material is dissolved to prepare a beverage, and a secondary hot water in which a beverage path such as a mixing ball 9 is washed. When hot water is supplied from the heating vessel 3 directly without pumping into the hot water storage vessel A4, a temperature distribution is generated in the hot water in the heating vessel 3 due to the convection action of the water.
The temperatures of the primary hot water and the secondary hot water fluctuate, and as a result, the product temperature of the beverage is not stable. Also, when a small amount of hot water is discharged, the flow rate fluctuates.

Further, besides the above-described two-time hot water supply, there are also three or more hot water taps depending on the beverage, so that the fluctuation increases.

However, the hot water in the heating vessel 3 is stored in the hot water storage vessel A.
By pumping a certain amount of hot water into the hot water 4 and tapping the hot water at the hot water valve 5, it is possible to supply a beverage in which the temperature of the hot water of the primary hot water and the secondary hot water and the amount of hot water are prevented from fluctuating.

As water supply means, water is stored in the water reservoir 1 and water is supplied through the water supply valve 2. However, water can be supplied directly by using the water supply valve 2 or by using an internal tank system.

Further, conventionally, about 10 liters of hot water is kept at the tap water temperature, but since a fixed amount of hot water is kept at the preheating temperature, significant energy saving is achieved.

Although the hot water storage container A4 is provided on the upper portion of the heating container 3, the hot water can be discharged from the upper and lower portions integrally with the heating container 3.

The outlet thermistor 3a and the inlet thermistor 3b attached to the heating vessel 3 can be installed at locations other than the heating vessel 3 as long as circulation and pumping hot water can be detected. But it is possible.

(Embodiment 2) FIG. 2 is a block diagram of a hot water supply apparatus according to Embodiment 2 of the present invention.

In FIG. 2, reference numeral 12 designates a tank for temporarily storing a fixed amount of hot water heated by the heating vessel 3 and connected to the heating vessel 3. Reference numeral 13 denotes a circulation pipe B which connects the heating vessel 3 and the pump 6, connects a water supply means between the heating vessel 3 and the pump 6, and connects the pump 6 and the heating vessel 3 to circulate hot water. It is.

In this embodiment, the heating apparatus according to the first embodiment is further provided with a hot water storage container B12 and a circulation pipe B13.

The operation of the thus configured hot water supply apparatus will be described below. The water stored in the water reservoir 1 is supplied to the heating container 3 by opening the water supply valve 2, and if the amount of water required for sale is supplied, the water supply valve 2 is closed and the water is heated by induction heating or the like. The temperature of the hot water is made uniform by circulating the hot water through the circulation pipe B13 in the direction of the thin line arrow by the pump 6, and the outlet thermistor 3a and the inlet thermistor 3b are set to the set temperature (preheating temperature). The temperature of the hot water is detected and the heating vessel 3
The temperature control is performed by causing the heating element to generate or non-generate heat, and the apparatus stands by.

However, steam (bubbles) generated during circulation is discharged from the upper portion of the hot water storage container B12. Here, when a command for selling is issued, the hot water in the heating vessel 3 is heated while being circulated by the pump 6 until it reaches the set temperature (sellable temperature), so that the hot water is uniformly at the set temperature ( Available temperature)
Then, the water supply valve 2 is opened to supply water to the heating vessel 3 and at the same time, a certain amount of hot water is pumped in the hot water storage vessel B12 in the direction of the thick arrow, and the hot water valve 5 is opened to discharge hot water.

The above operation is the same as that of the first embodiment. However, in the operation of the first embodiment, it is impossible to perform preheating while circulating while pumping water for tapping. It is not suitable for continuous sales in a short time.

Therefore, by equipping the heating vessel 3 with the hot water storage vessel B12 and connecting the circulation pipe B13 to the upper portion of the heating vessel 3, a certain amount of hot water is pumped into the hot water storage vessel B12 in the direction of the bold line arrow. By circulating and heating the supplied water with the pump 6, preliminary heating for the next sale becomes possible, and it is possible to sufficiently cope with a case where continuous sale is required in a short time.

(Embodiment 3) FIG. 3 is a block diagram of a hot water supply apparatus according to Embodiment 3 of the present invention.

In FIG. 3, reference numeral 14 denotes a heating heater.
This is a heating heater provided with a heating element on the exterior of the hot water storage container B12 in order to heat the hot water storage container B12. A control unit 14a controls the energization of the heating heater 14.

This embodiment is different from the water heater according to the second embodiment in that
Further, a heating heater 14 and a control means 14a are provided.

The operation of the heating device configured as described above will be described below. When a sales command is issued, a fixed amount of hot water is pumped into hot water storage container B12,
When the outside air temperature is low, the hot water is dropped in the hot water storage container B12, and the temperature of the hot water decreases. Therefore, the heating heater 14 is attached to the hot water storage container B12, and the outside air temperature is detected. When the outside air temperature sensor (not shown) falls below the set temperature, the heater 14 is energized to perform heating.

However, immediately after the sale is performed, since the hot water storage container B12, the piping after the hot water valve 5, the mixing ball 9, and the like are heated, the control such that the heating heater 14 is not energized is performed by a control means. 14a.

Thus, a beverage can be supplied in which the temperature of hot water is prevented from lowering even when the outside air temperature decreases.

Further, it becomes possible to reheat when several cups of hot water are stored in the hot water storage container B12. In addition, hot water storage container B1
2, it is also possible to heat the hot water directly.

(Embodiment 4) FIG. 4 is a sectional view of a hot water supply apparatus according to Embodiment 4 of the present invention.

In FIG. 4, reference numeral 15 denotes a hot water storage container C,
As the internal configuration of the hot water storage container B12, the hot water storage unit main body and the lower part of the hot water storage unit main body serve as a water supply passage to the hot water storage unit main body, and are connected to a suction unit that connects to the heating container 3 and a water supply passage of the suction unit. A discharge part for connecting the hot water valve 5 is formed, and the space between the suction part and the discharge part is made to be half or less of the volume of the hot water storage part main body. 5a is a hot water valve O-ring,
A component of the hot-water valve 5 and a sealing component for preventing hot-water leakage. Reference numeral 5b denotes a water stop packing, which is a component of the hot water valve 5 and is a packing for closing the tapping of hot water.

This embodiment is different from the water heater according to the second embodiment in that
Further, a hot water storage container C15 is provided.

The operation of the thus configured hot water supply apparatus will be described below. When a sales command is issued, a fixed amount of hot water is pumped into the hot water storage container C15 and the hot water valve 5 is discharged.
The hot water is opened by opening the water, but the water level is desired to be maintained in the A line during the waiting period. However, the hot water valve 5 has a rubber hot water valve O-ring 5a and a water stop packing 5b as constituent parts. Drying and pumping would cause deterioration if repeated wetting at the time of pumping would promote deterioration. If the water level was maintained at the B line, the temperature of the hot water from the A line to the B line would drop below the A line, so the hot water was discharged as it was. Although the temperature of the beverage produced by hot water is lowered, the amount of dead water is minimized (from the A line to the B
The capacity of hot water up to the line is less than half of the capacity of the hot water storage unit above the line B), and the temperature of the dead water below the line A and the dead water from the line B to the line A can be minimized by convection. This makes it possible to supply a beverage in which the temperature of hot water is prevented from lowering.

As a method for maintaining the water level,
There are a switch detection (not shown) by a float, a water level matching with the water reservoir 1, and the like.

(Embodiment 5) FIG. 5 is a block diagram of a hot water supply apparatus according to Embodiment 5 of the present invention.

In FIG. 5, reference numeral 16 denotes a built-in hot water storage container, which is provided inside the heating element of the heating container 3 and temporarily stores a fixed amount of hot water heated by the heating container 3. Reference numeral 3c denotes a heating element, which is a component of the heating vessel 3 and directly heats water to warm water. Reference numeral 3d denotes a coil, which is a component of the heating vessel 3 and is provided outside the heating element 3c, and causes the heating element 3c to generate heat when energized.

This embodiment is different from the water heater according to the second embodiment in that
Further, a built-in hot water storage container 16, a heating element 3c, and a coil 3c are provided.

The operation of the thus configured hot water supply apparatus will be described below. In the case where the heating heater 14 described in the third embodiment is provided in the hot water storage container B12 and the outside air temperature falls below the set temperature, the heating heater 14 is energized to heat the heater 14 in addition to this means. Built-in hot water storage container 1 with hot water storage container B12 built in heating container 3 as in the example
By providing 6, the same effect as in the third embodiment can be obtained.

First, at the time of standby for sales, the temperature of the hot water is made uniform by circulating the hot water in the direction of the thin line arrow so that the temperature becomes the set temperature (preheating temperature). , Until the set temperature (sellable temperature)
When the hot water is uniformly heated to the set temperature (sellable temperature) while being circulated by the pump 6, the water supply valve 2 is opened to supply water, and at the same time, a fixed amount of hot water is pumped into the built-in hot water storage container 16 in the direction of the thick arrow. Then, the hot water is opened by opening the hot water valve 5.

However, steam (bubbles) generated during circulation is discharged from the upper portion of the heating vessel 3. In this way, the hot water in the built-in hot water storage container 16 is kept warm in the circulation hot water outside the built-in hot water storage container 16, so that a beverage in which the temperature of the hot water is prevented from lowering can be supplied.

The hot water container B12 is provided inside the heating container 3.
The size of the entire heating device can be reduced by incorporating the heater.

(Embodiment 6) FIG. 6 is a block diagram of a hot water supply apparatus according to Embodiment 6 of the present invention.

In FIG. 6, reference numeral 17 denotes a heat insulating material for the heating vessel, which is provided on the outer periphery of the heating vessel 3 and insulates the heating vessel 3. Reference numeral 18 denotes a heat insulating case, which includes a heating container 3, a hot water storage container B12, a hot water valve 5, a pump 6, and a circulation pipe B1.
3 for heat insulation of the entire hot water supply apparatus.

This embodiment is different from the water heater according to the second embodiment in that
Further, a heat insulating material 17 and a heat insulating case 18 are provided.

The operation of the thus configured hot water supply apparatus will be described below. The heating element is heated from water to hot water by a heating element that is heated by energizing a coil 3d such as induction heating, which is a component part of the heating vessel 3 described in Example 4, but the heating element from the coil 3d itself is heated. By equipping the third coil 3d with the heating container heat insulating material 17, heat can be effectively used without radiating heat.

Further, the heat dissipation from the hot water storage container B12, the heating container 3, the circulation pipe B13, the pump 6 and the hot water valve 5 of the heating device is provided by the heat insulating case 18 to prevent heat loss and prevent the temperature of the hot water from lowering. Beverages,
Significant energy savings.

Further, by making the outer cover of the heat insulating case 18 metallic or flame-retardant, it is possible to keep the internal ignition even if the fire due to the empty cooking occurs.

(Embodiment 7) FIG. 7 is a block diagram of a hot water supply apparatus according to Embodiment 7 of the present invention.

In FIG. 7, reference numeral 19 denotes a distributor provided with each layer for distributing hot water discharged from the hot water valve 5 to a path requiring hot water. Reference numeral 20 denotes a movable device that moves to distribute hot water from the hot water valve 5 to each layer of the distributor 19.

This embodiment is different from the water heater according to the second embodiment in that
Further, a distributor 19 and a movable device 20 are provided.

The operation of the thus configured hot water supply apparatus will be described below. In FIG. 1 described in the first embodiment, the hot water valve 5 and the mixing ball 9 are clearly shown only for one beverage path, but originally, each powder raw material (coffee, cocoa, tea, etc.) of each powder raw material container 8 is stirred. Mixing balls 9 for mixing
Is required.

The hot water valve 5 is also required for mixing syrup and hot water instead of the powder raw material. Therefore, a large number of hot water valves 5 are required, which increases costs and increases the amount of dead water described in the fourth embodiment.

Therefore, by providing a distributor 19 for distributing hot water to each mixing ball 9 and a movable device 20 for injecting hot water from the hot water valve 5 into each distributor 19, the hot water valve 5 can be minimized. It is possible to cope with dead water resistance at low cost.

Also, in the case of increasing the number of beverage paths, the number of beverage paths can be easily increased by adding the distributor 19 without adding the hot water valve 5.

Further, the movable device 20 can be attached to the distributor 19.

The apparatus described in this embodiment is also effective in the hot water tank system described in the related art.

(Eighth Embodiment) FIG. 8 is a block diagram of a hot water supply apparatus according to an eighth embodiment of the present invention.

In FIG. 8, reference numeral 21 denotes an extraction pump;
This is a pump for extracting hot water discharged from the hot water valve 5.

This embodiment is different from the water heater according to the second embodiment in that
Further, an extraction pump 21 is provided.

The operation of the thus configured hot water supply apparatus will be described below. The hot water discharged from the hot water valve 6 is injected by natural fall due to the height difference between the hot water valve 5 and the mixing ball 9, but the height of the hot water valve 5 and the mixing ball 9 is low due to the configuration due to the miniaturization of vending machines and the like. Although it may be difficult to obtain a difference, the extraction pump 21 is provided between the hot water valve 5 and the mixing ball 9 and the extraction pump 21 is operated at the same time as the hot water from the hot water valve 5, so that there is no difference in elevation. In the case where the mixing ball 9 is provided above the hot water valve 5, the injection can be easily performed.

Further, by providing the extraction pump 21 as compared with the natural fall due to the height difference, the extraction speed can be improved, and the sales time can be shortened.

Further, by providing the extraction pump 21 between the hot water valve 5 and the distributor 19 and between the distributor 19 and the mixing ball 9 described in the seventh embodiment,
A similar effect can be obtained.

[0091]

As described above, according to the present invention, when the water supply means is opened, water is supplied to the heating container, and when the amount of water required for sale is supplied, the water supply means is closed and the water is heated by induction heating or the like. By circulating the hot water through the circulation pipe A by the pump, the temperature of the hot water is made uniform by making the temperature of the hot water uniform, and the temperature of the hot water is heated or not heated so as to be the preheating temperature, thereby controlling the temperature. Going and waiting.
Here, when a command to perform hot water is issued, the hot water in the heating vessel is heated while circulating with a pump until the hot water reaches a sellable temperature. When opened, water is supplied to the heating container, and at the same time, a certain amount of warm water is pumped into the hot water storage container A, and the hot water is opened by opening the hot water valve. Here, as the hot water discharge pattern, there are cases where the hot water is discharged twice, such as the primary hot water and the secondary hot water. Temperature distribution occurs in the hot water inside, the temperature of the primary hot water and the secondary hot water fluctuates, and as a result, the temperature of the hot water discharged becomes unstable, and the flow rate fluctuates if a small amount of hot water is discharged, The amount of hot water varies. Further, besides the above-described two-time tapping, tapping may be performed three or more times depending on the case, so that the fluctuation increases. However, a fixed amount of hot water in the heating container is pumped into the hot water storage container A, and the hot water is supplied from the hot water valve, thereby supplying a beverage in which the temperature of the primary hot water and the secondary hot water and the amount of hot water are prevented from fluctuating. It becomes possible.

Further, by equipping the heating container with the hot water storage container B and connecting the heating container circulation pipe to the upper portion of the heating container, a fixed amount of hot water is pumped into the hot water storage container B, and the water supplied for pumping is discharged. By performing circulating heating with a pump, preliminary heating for the next sale becomes possible, and it is possible to sufficiently cope with a case where continuous sale is required in a short time.

[0093] When a command to supply hot water is issued, a certain amount of hot water is pumped into hot water storage container B and hot water is opened by opening a hot water valve, but when the outside air temperature is low, hot water is stored in hot water storage container B. Since the temperature of the hot water decreases due to the loss, the heating heater is mounted on the exterior of the hot water storage container B, and the heating heater is energized to perform heating. This makes it possible to supply a beverage in which the temperature of hot water is prevented from lowering even when the outside air temperature is lower. Further, when a fixed amount of hot water is stored in the hot water storage container B, reheating can be performed.

[0094] When a command for tapping water is issued, a certain amount of hot water is pumped into hot water storage container B and hot water is opened by opening a hot water valve. The hot-water valve has a rubber hot-water valve O-ring and water-stop packing as its constituent parts. If held, the temperature of the hot water from the hot water valve to the heating container drops below the temperature of the heating container or lower. Therefore, the temperature of the hot water discharged as it is drops as it is. The amount of dead water is set to less than half of the capacity of the hot water storage unit main body, and the convection between the hot water below the heating vessel and the dead water in the suction part and the discharge part makes it possible to reduce the minimum dead water temperature, preventing the temperature drop Hot water can be supplied.

[0095] When the hot water supply command is issued, the water is heated while circulating with a pump until the temperature reaches the salable temperature, and when the hot water reaches the uniform salable temperature, the water supply valve is opened to supply water. At the same time, a certain amount of hot water is pumped into the built-in hot water storage container, and the hot water is opened by opening the hot water valve. As described above, the hot water in the built-in hot water storage container is kept warm in the circulation hot water outside the built-in hot water storage container, so that it is possible to supply hot water in which the temperature is prevented from lowering. In addition, by incorporating the hot water storage container B inside the heating container, it is possible to reduce the size of the entire heating device.

The heating element is heated from water to hot water by a heating element which is heated by energizing a coil such as induction heating which is a component of the heating vessel. The heating element from the coil itself is connected to the coil of the heating vessel. By equipping the heating container with a heat insulating material, the heat can be effectively used for heating without releasing heat. In addition, heat loss can be prevented by providing a heat insulating case for heat radiation from the hot water storage container B, the heating container, the circulation pipe B, the pump and the hot water valve of the hot water supply device. Becomes In addition, by making the outer cover of the heat insulating case metallic or flame-retardant, even if fire occurs due to empty cooking or the like, it is possible to limit internal ignition.

[0097] Further, depending on the hot water supply device, a plurality of hot water valves may be required, but the cost increases and the amount of dead water increases. Therefore, by injecting hot water from the hot water valve into each distributor using a movable device, the hot water valve can be minimized, and it is possible to cope with dead water resistance at low cost. Was.

[0098] The hot water discharged from the hot-water valve is injected into the next step by natural fall due to the height difference. However, due to the downsizing of the hot-water supply device and the like, a difference in height from the hot-water valve may be obtained. Although it may be difficult, an extraction pump is installed after the hot water valve, and the extraction pump is operated at the same time as the hot water from the hot water valve, so that the next process is configured when there is no height difference or above the hot water valve. In this case, the injection can be easily performed. In addition, by providing the extraction pump as compared with the natural fall due to the height difference, the extraction speed can be improved, and the sales time can be shortened.

[Brief description of the drawings]

FIG. 1 is a block diagram of a water heater according to a first embodiment of the present invention.

FIG. 2 is a block diagram of Embodiment 2 of the hot water supply apparatus according to the present invention.

FIG. 3 is a block diagram of Embodiment 3 of the hot water supply apparatus according to the present invention.

FIG. 4 is a cross-sectional view of Embodiment 4 of the hot water supply apparatus according to the present invention.

FIG. 5 is a block diagram of Embodiment 5 of the hot water supply apparatus according to the present invention.

FIG. 6 is a block diagram of Embodiment 6 of the hot water supply apparatus according to the present invention.

FIG. 7 is a block diagram of Embodiment 7 of the hot water supply apparatus according to the present invention.

FIG. 8 is a block diagram of Embodiment 8 of the hot water supply apparatus according to the present invention.

FIG. 9 is a block diagram of a conventional water heater.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Water reservoir 2 Water supply valve 3 Heating container 3a Outlet thermistor 3b Inlet thermistor 3c Heating element 3d Coil 4 Hot water storage container A 5 Hot water valve 5a Hot water valve O ring 5b Waterproof packing 6 Pump 7 Circulation piping A 8 Powder material container 8a Shooter 9 Mixing Ball 10 Cup 11 Nozzle 12 Hot water storage container B 13 Circulation pipe B 14 Heating heater 14a Control means 15 Hot water storage container C 16 Built-in hot water storage container 17 Heating container heat insulating material 18 Heat insulating case 19 Distributor 20 Movable device 21 Extraction pump

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masafumi Yamanaka 4-5-2-5 Takaida Hondori, Higashi-Osaka City, Osaka Inside Matsushita Refrigerating Machinery Co., Ltd. (72) Yasutomo Onishi 4-chome Takaida Hondori, Higashi-Osaka City, Osaka Prefecture No. 2 Matsushita Refrigerating Machinery Co., Ltd. (72) Inventor Yasuhiro Tsujii 4-5-2 No. 5 Matsushita Refrigerating Machinery Co., Ltd. Higashi-Osaka City, Osaka Prefecture (72) Inventor Gen Moto Nojima Takada Motomichi, Higashi-Osaka City, Osaka Prefecture 4-chome No.2-5 Matsushita Refrigeration Co., Ltd. F-term (reference) 3E047 AA02 BA01 DC03 DC04 DC06 DC08 FA01 3L025 AA08 AA27

Claims (8)

[Claims] 1. A water supply means for supplying water, a heating vessel equipped with a heating element for heating water supplied by the water supply means by induction heating or the like, and a fixed amount of hot water heated by the heating vessel. A hot water storage container A connected to the heating container, and a hot water valve connected to the hot water storage container A for discharging or stopping hot water as needed. Normally, hot water is circulated, and at the time of hot water supply, a pump for discharging hot water via the hot water valve, the hot water storage container A and the pump are connected, and the water supply means is connected between the hot water storage container A and the pump. A hot water supply device comprising a circulation pipe A for circulating hot water by connecting the pump and the heating container. 2. A hot water storage container B that temporarily stores a fixed amount of hot water heated by the heating container and is connected to the heating container.
A circulation pipe B for circulating hot water by connecting the heating vessel and a pump, connecting the water supply means between the heating vessel and the pump, and connecting the pump and the heating vessel.
The hot water supply apparatus according to claim 1, further comprising: 3. A heating heater provided with a heating element on the exterior of the hot water storage container B for heating the hot water storage container B, and a control means for controlling energization of the heating heater. The hot water supply device according to claim 2, wherein 4. An internal configuration of the hot water storage container B, a suction unit formed at a lower part of the hot water storage unit main body and the hot water storage unit main body, serving as a water supply passage to the hot water storage unit main body, and connected to a heating container.
A hot water storage container C is connected to a water supply passage of the suction portion, and has a discharge portion for connecting a hot water valve, wherein a space between the suction portion and the discharge portion is less than half the volume of the hot water storage portion main body.
And a hot water valve O-ring, which is a sealing component for preventing hot water leakage, as a component of the hot water valve, and a water stop packing for closing hot water out of the hot water valve component. The hot water supply device according to claim 2, wherein 5. A built-in hot water storage container, which is provided inside a heating element of a heating container and temporarily stores a fixed amount of hot water heated by the heating container, and a component for the heating container, which directly supplies hot water. 3. The hot water supply according to claim 2, further comprising: a heating element that heats the heating element, and a coil that is provided outside the heating element and that is configured to heat the heating element when energized. apparatus. 6. A heating container heat insulating material which is provided on the outer periphery of the heating container and insulates the heating container, the heating container and the hot water storage container B
The hot water supply apparatus according to claim 2, further comprising a heat insulating case configured to insulate the entire hot water supply apparatus including the hot water valve, the pump, and the circulation pipe (B). 7. A distributor equipped with each layer for distributing hot water discharged from a hot water valve to a path requiring hot water, and movable for distributing hot water discharged from the hot water valve to each layer of the distributor. The hot water supply device according to claim 2, further comprising a movable device. 8. The hot water supply device according to claim 2, further comprising an extraction pump for extracting hot water discharged from the hot water valve.