JP4096471B2 - Water heater - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a purified water heater for supplying hot water after purification or water used in a home or office.
[0002]
[Prior art]
Conventionally, there is a jar pot as a household device for storing hot water by raising the temperature of hot water to a constant temperature using electricity. There is also a water purifier that is directly connected to the water supply to purify the water.
[0003]
[Problems to be solved by the invention]
However, although the jar pot with the conventional configuration can be used without waiting until the hot water is exhausted, when the water is used up, the person stores water and waits until it is heated to the set temperature.In recent years, the amount of hot water has been increasing. There were problems such as high heat insulation power. The number of people who are dissatisfied with tap water and who use water purifiers is increasing.
[0004]
[Means for Solving the Problems]
This invention solves the problem which such a conventional structure has, and uses the hot water or purified water which heated the water after purified water and stored the hot water of predetermined temperature gradually, supplying water automatically by water supply direct connection. Is. If it is a small amount of hot water that does not require water supply by humans, it is a purified water heater with a low waiting time and a small amount of stored heat while suppressing the maximum hot water storage amount.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
The invention described in claim 1 includes a water pipe through which the water is connected to the water pipe, a water shut-off means for the water stopping water is connected to the water pipe, a water purification unit for water purification and water is connected to the water stop means, a flow path switching means for switching coupled to said water purification section flow path purified water discharge side or the water supply pipe side, a hot-water storage container storing hot water is connected to the water supply pipe, the water container connected to the hot-water storage container top to said water supply Kan A guide water pipe for discharging water through the bottom, a heating means for heating water, a temperature detecting means for detecting hot water temperature, a pump for transferring hot water to the discharge part, and an opening for extracting steam A first water level detection means for detecting a first predetermined water level, and inputs the output of the temperature detection means and the output of the first water level detection means, and the water stop means and the flow path switching means. And control means for controlling the heating means and the pump With the door, the control means is a water purifier water heater water supply to YuAtsushi operation starting time of a predetermined level not tapped until the first predetermined temperature, said guide water pipe, a predetermined flow path cross-sectional area at the bottom And having an air venting means in the vicinity of the water storage container , hot water below a predetermined temperature is not discharged and hot water at a predetermined temperature is obtained. It is a purified water heater that reduces the amount of hot water stored and has low thermal insulation power.
[0006]
In addition , by providing a guide water pipe that is connected to the water supply pipe and allows water to pass from the top to the bottom of the hot water storage container, the heating means comes into contact with water having a low temperature at the time of water supply, so heat transfer is good. It is a purified water heater that is hard to mix and has a small temperature change.
[0007]
Also it has a discharge port or guide water pipe having a predetermined flow path cross-sectional area at the bottom is connected to a water supply pipe, hot water storage even when the flow rate supplied larger from a water by providing a reservoir of water in the hot water storage vessel upper The container is a purified water heater with small changes in hot water temperature that can be supplied at a small flow rate or with a small number of water stops.
[0008]
In addition , the guide water pipe is a water heater without water breakage that is capable of dropping water without storing air in the water pipe by providing an air venting means for extracting air in the water pipe.
[0009]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0010]
Example 1
A first embodiment will be described with reference to FIG. Reference numeral 1 denotes a water pipe that is piped in the home and through which tap water flows. Reference numeral 2 denotes a water pipe connected to the water pipe 1, which has a water stop means 3 on its path and is connected to a flow path switching means 5 via a water purification means 4. The water stop means 3 is composed of an electromagnetic valve or the like for passing or stopping tap water. The water purification means 4 is composed of activated carbon for purifying tap water, a hollow stop film, and the like. The inlet side of the flow path switching means 5 is commonly connected to the purified water means 4, one on the outlet side is connected to the purified water discharge 6, and the other is connected to the discharge port 8 for discharging to the upper part of the hot water storage container 16 through the water supply pipe 7. In this case, the purified water is discharged or supplied to the hot water storage container 16, and is constituted by a combination of a motor type three-way valve or two electromagnetic valves. Reference numeral 11 denotes a temperature detecting means installed at the bottom of the hot water storage container 16 and is composed of a thermistor or the like. Reference numeral 12 denotes a heating means installed at the bottom of the hot water storage container 16 and is composed of a heater or the like. The outflow pipe 13 has a pump 14 and is connected to a hot water discharge section 15. Reference numeral 9 denotes a steam vent opening provided in the upper part of the hot water storage container 14. Reference numeral 10 denotes a first water level detection means for detecting a first predetermined water level or a water storage amount installed on the upper side surface of the hot water storage container, or a combination of two electrodes that hold a predetermined interval or a combination of floating, photodiode, phototransistor, etc. Etc. The temperature detection means 11 and the first water level detection means 10 are connected to the control means 18 via the input means 17. The water stop means 3, the flow path switching means 5, the heating means 12, and the pump are connected to the control means 18 via the output means 19.
[0011]
The operation of the above configuration will be described.
[0012]
When a water purification switch (not shown) is operated, the control means 18 switches the flow path switching means to the purified water discharge 6 side, passes the water stopping means 3, and tap water is purified by the purified water means 4 and discharged. The control means 18 switches the flow path switching means 5 at the start of operation to the water supply pipe 7 side, passes the water stop means 3, supplies water to the hot water storage container to the first predetermined water level of the first water level means 10, and stops the water stop means 3. The heated water is stopped by the heating means 12, and when the temperature reaches the first predetermined temperature of the temperature detecting means 11 at the bottom, the heating is stopped and a hot water supply that is not described is displayed or indicated by a buzzer. When a hot water supply switch not described when hot water supply is possible is operated, the control means operates the pump to discharge hot water having a first predetermined temperature from the discharge unit 15. When hot water is used during operation and the amount of hot water drops below the first predetermined water level, the control means 18 switches the flow path switching means 5 to the water supply pipe 7 side, passes the water stop means 3 and passes the purified water into the hot water storage container 16. When the hot water of the temperature detecting means 11 falls to the second predetermined temperature or when the amount of hot water at the first predetermined water level of the first water level detecting means 10 is stored, the water stopping means 3 is stopped and the heating means 12 is used. Heat until the hot water temperature reaches the first predetermined temperature. When the temperature of the hot water to be used is low, the hot water is prohibited, the hot water is reheated by the heating means 12 and the temperature is raised to a predetermined temperature, and the hot water can be discharged . If a sufficient amount of time is left after one use, the first predetermined amount of hot water is stored, so that it is a small amount of hot water storage compared to the jar pot. If a small amount is acceptable, hot water having a predetermined temperature is stored while being heated or kept warm, so that hot water having a predetermined temperature can be used even during hot water storage. Therefore, it is convenient.
[0013]
( Reference Example 1 )
Reference Example 1 will be described with reference to FIG. In addition, the thing of the same structure as said Example 1 attaches | subjects the same code | symbol, and abbreviate | omits description.
[0014]
20 is a flow restricting means for restricting the flow rate to a predetermined flow rate or less even in an area where the water pressure is high, which is installed in the water supply pipe 7 for supplying the purified water to the hot water storage container 16, and is composed of a diaphragm and an orifice with a narrowed flow path diameter. Is done.
[0015]
The operation in the above configuration will be described.
[0016]
When the amount of hot water in the hot water storage container 16 decreases during operation, water lower than the hot water temperature is supplied at a small flow rate through the flow restricting means 20, so the change in the hot water temperature when water is supplied to the hot water storage container is reduced or the number of water stops is reduced. It can be reduced.
[0017]
(Example 2 )
A second embodiment will be described with reference to FIG. In addition, the same structure as said Example 1 or the reference example 1 attaches | subjects the same code | symbol, and abbreviate | omits description.
[0018]
A guide water pipe 21 is connected to the discharge port 8 of the water supply pipe 7 and discharges water through the bottom of the hot water storage container 16.
[0019]
The operation in the above configuration will be described.
[0020]
If the amount of hot water in the hot water storage container 16 decreases during operation, water lower than the hot water temperature is discharged near the heating means 12 through the guide water pipe 21, so that the heating means 12 comes into contact with water having a low temperature during water supply, so that heat is transferred. It is also possible to reduce the temperature change of the hot water because it is difficult to mix the hot water and water in the upper part.
[0021]
( Reference Example 2 )
Reference Example 2 will be described with reference to FIG. In addition, the thing of the same structure as said Example 1 , Reference Example 1, and Example 2 attaches | subjects the same code | symbol, and abbreviate | omits description.
[0022]
Reference numeral 22 denotes a heat insulating means for insulating the periphery of the guide water pipe 21 and is composed of a waterproof heat insulating sheet or a double structure in which vacuum or air is sealed.
[0023]
The operation in the above configuration will be described.
[0024]
If the amount of hot water in the hot water storage container 16 decreases during operation, water lower than the hot water temperature passes through the guide water pipe 21 having the heat insulating means 22, so that the hot water and water in the upper part are hardly mixed and the temperature change of the hot water can be reduced. .
[0025]
(Example 3 )
Example 3 will be described with reference to FIG. The same components as those in the first and second embodiments and the reference examples 1 and 2 are denoted by the same reference numerals and the description thereof is omitted.
[0026]
24 has a second water level detecting means for detecting a second predetermined water level connected to the control means 18 via the input means 17 on the side surface, and has a heat insulating means 22 at the bottom and water is passed through the bottom of the hot water storage container 16. This is a water storage container having a guide water pipe 21 having a predetermined flow path cross-sectional area to be discharged and connected to the discharge port 8 of the water supply pipe 7.
[0027]
The operation in the above configuration will be described.
[0028]
Even when the flow rate supplied from the water supply to the hot water storage container 16 is large during operation, the flow rate of water flowing to the bottom is not so great, so the hot water storage container can be supplied with a small flow rate with a small change in hot water temperature or the number of water stops. Less. Further, the control means can prevent the water in the water storage container from overflowing by stopping the water supply when a predetermined amount or more of water is stored in the water storage container.
[0029]
【The invention's effect】
The invention described in claim 1 includes a water pipe through which the water is connected to the water pipe, a water shut-off means for the water stopping water is connected to the water pipe, a water purification unit for water purification and water is connected to the water stop means, a flow path switching means for switching coupled to said water purification section flow path purified water discharge side or the water supply pipe side, a hot-water storage container storing hot water is connected to the water supply pipe, the water container connected to the hot-water storage container top to said water supply Kan A guide water pipe for discharging water through the bottom, a heating means for heating water, a temperature detecting means for detecting hot water temperature, a pump for transferring hot water to the discharge part, and an opening for extracting steam A first water level detection means for detecting a first predetermined water level, and inputs the output of the temperature detection means and the output of the first water level detection means, and the water stop means and the flow path switching means. And control means for controlling the heating means and the pump With the door, the control means is a water purifier water heater water supply to YuAtsushi operation starting time of a predetermined level not tapped until the first predetermined temperature, said guide water pipe, a predetermined flow path cross-sectional area at the bottom And having an air venting means in the vicinity of the water storage container , hot water below a predetermined temperature is not discharged and hot water at a predetermined temperature is obtained. It is possible to realize a purified water heater that suppresses the amount of stored hot water and has low heat retention power.
[0030]
In addition , by providing a guide water pipe that is connected to the water supply pipe and allows water to pass from the top to the bottom of the hot water storage container, the heating means comes into contact with water having a low temperature at the time of water supply, so heat transfer is good. It is possible to realize a purified water heater that is difficult to mix and has a small temperature change of hot water.
[0031]
Also it has a discharge port or guide water pipe having a predetermined flow path cross-sectional area at the bottom is connected to a water supply pipe, hot water storage even when the flow rate supplied larger from a water by providing a reservoir of water in the hot water storage vessel upper It is possible to realize a water purifier with a small change in hot water temperature that can be supplied at a small flow rate or a small number of water stops.
[0032]
Moreover , the guide water pipe can provide a water purifier with no water breakage in which water is allowed to fall without accumulating air in the water pipe by providing an air vent means for drawing out air in the water pipe.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing a configuration of a purified water heater according to a first embodiment of the present invention. FIG. 2 is an explanatory diagram showing a configuration of a purified water heater according to a first reference example of the present invention. Explanatory drawing which shows the structure of the purified water heater of the 2nd Example of this invention [FIG. 4] Explanatory drawing which shows the structure of the purified water heater of the 2nd reference example of this invention [FIG. 5] 3rd Example of this invention Explanatory diagram showing the structure of a water heater
DESCRIPTION OF SYMBOLS 1 Water pipe 2 Water pipe 3 Water stop means 4 Water purification means 5 Flow rate switching means 6 Purified water discharge 7 Water supply pipe 8 Discharge port 9 Opening part 10 1st water level detection means 11 Temperature detection means 12 Heating means 13 Outflow pipe 14 Pump 15 Discharge part 16 Hot water storage container 17 Input means 18 Control means 19 Output means
21 Guide water pipe
24 water storage container
25 Air vent hole (Air venting means)

Claims (1)

A water pipe through which the water is connected to the water pipe, a water shut-off means for the water stopping water is connected to the water pipe, a water purification unit for water purification and water is connected to the water stop means, connected to said purified water means water purification discharge side Alternatively the flow path switching means for switching the flow path to the water supply pipe side, the connection to the hot water storage vessel storing hot water to the water supply pipe, the guide for discharging through the water to the bottom from the water storage container connected to the hot-water storage container top to said water supply Kan A water pipe, a heating means for heating water in the hot water storage container, a temperature detection means for detecting hot water temperature, a pump for transferring hot water to a discharge part, an opening for extracting steam, and a first predetermined water level are detected. First water level detecting means, and control means for inputting the output of the temperature detecting means and the output of the first water level detecting means to control the water stop means, the flow path switching means, the heating means and the pump. And the control means is operated. Hajimeji to a water purifier water heater feed water to YuAtsushi is not tapped until the first predetermined temperature to a predetermined level, the guiding water tube has a predetermined flow path cross-sectional area at the bottom, the reservoir near A purified water heater having air venting means .

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