JP3730307B2 - Bathtub cleansing equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bathtub hot water purifier.
2. Description of the Related Art In recent years, bathtub hot water purifiers that keep the hot water in a bathtub constantly clean by repeatedly drawing the hot water in the bathtub and passing it through a predetermined purification mechanism and then returning it to the bathtub again are widely used.
In such a bath water purifier, the bath water is forcibly circulated by a circulation pump, and is filtered by activated carbon or sterilized by ozone or the like, and at the same time is kept at a predetermined temperature by an electric heater. It is normal.
[0002]
[Problems to be solved by the invention]
However, in the conventional purification apparatus, in order to keep hot water at an appropriate temperature, it is necessary to always perform heating with an electric heater, and there is a problem that the running cost becomes expensive.
The object of the present invention is to solve the above-mentioned problems of the prior art.
[0003]
[Means for Solving the Problems]
In order to achieve the above object, the present invention relates to a bathtub hot water purifier that circulates bathtub hot water between a bathtub and a cleaning mechanism through a circulation path, and connects the bath hot water to a predetermined position of the circulation path. , A means for storing while heating to a predetermined temperature and keeping the temperature, a means for lowering hot water of a predetermined temperature from the means for storing to a predetermined temperature, and a means for lowering the predetermined temperature Detected by means for supplying hot water storage that has dropped to temperature to the circulation path at a position closer to the bathtub than the predetermined position, means for detecting the temperature of the bathtub hot water, and means for detecting when temperatures is equal to or less than a predetermined temperature, and a means for supplying a蓄湯dropped across a predetermined temperature to said means for supplying the circulation path, the means for storing the bath water to be introduced The same amount of hot water as the bathtub Supplied to it, characterized in.
Since the means for storing performs a heating operation at an appropriate time and stores the heated hot water, for example, midnight power can be used, and the cost required for heating can be reduced. Also, solar heat or the like can be used, and it is not always necessary to perform heating. Therefore, the range of selection of the heat source is increased, and the heating cost can be reduced. In addition, since the means for storing supplies the same amount of hot water as the bath water to be introduced to the bathtub side, the amount of water between the means for storing and the bathtub is constant in principle, and the amount of bath water is also Can be kept constant. In addition, it is not necessary to introduce low-temperature water from other systems between the means for storing, the bathtub, and the cleaning mechanism, and since a closed loop can be formed thermally, heat loss can be reduced. is there.
Moreover, the temperature of the hot water storage from the means for storing is used by lowering to a predetermined temperature and is not directly supplied to the bathtub, but is supplied to the circulation path once and then returned to the bathtub. Can prevent accidents such as burns caused by hot water storage.
As a means for lowering the temperature of the hot water storage, for example, the temperature can be lowered by mixing the hot water storage and the bath water. This hot water storage and bathtub hot water may be mixed using a thermo valve, or may be mixed by connecting a pipe having a preset pipe diameter. In this case, the hot water storage temperature falls to a predetermined temperature by setting the pipe diameter.
As described above, the means for storing outputs the same amount of hot water as the introduced bath water. Therefore, if the temperature is lowered by mixing with the bath water in the means for lowering the temperature, and if water is not supplied from other sources, the amount of hot water in the bath water can always be kept constant , Low loss and great energy saving effect.
It is also possible to further provide safety by further providing a safety device for stopping the supply of hot water when the temperature of the hot water from the lowering means is equal to or higher than a predetermined temperature. Further, when the thermo valve is used as described above, the hot water supply may be stopped by closing the thermo valve when the temperature of the hot water is equal to or higher than a predetermined temperature.
[0004]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
In FIG. 1, hot water in a bathtub 9 is sterilized by a sterilizer 7 through a circulation path X1 and a circulation path X2 by a pump 6, and further purified by passing through a circulation path X3 through a filtration device 8 to be circulated. It is comprised so that it may return to bathtub 9 from. The arrangement of the pump 6, the sterilizer 7 and the filtration device 8 can be changed, and other devices can be added.
A hot water temperature sensor 5 is provided in the circulation path X1 near the outlet of the bathtub 9 so as to detect the temperature of the bathtub hot water.
[0005]
A pipe Y1 is connected to the circulation path X2, and is connected to the valve 4. The valve 4 is opened and closed by a control device (not shown), and is configured to be opened and closed according to the temperature of the bath water from the hot water temperature sensor 5.
The pipe Y1 may be connected anywhere in the purification circuit. For example, it is possible to introduce hot water purified by the filtration device 8 by connecting to the circuit X4.
A pipe Y <b> 2 is provided on the outlet side of the valve 4 and is connected to the temperature drop unit 2, and the pipe Y <b> 3 is branched and connected to the bottom side of the heat storage tank 1.
The pipe Y1 is provided with a check valve 40 so that hot water on the heat storage tank 1 side does not flow back to the sterilizer 7 and the filter 8 side. Thereby, the accident by the backflow of hot water can be prevented in the case of cleaning and inspection of the filtration apparatus 8.
Moreover, it is preferable to provide a discharge valve in the heat storage tank 1 so that the hot water in the heat storage tank 1 can be discharged so that the heat storage tank 1 can be easily inspected and cleaned. This discharge valve may be realized by configuring the valve 4 with a three-way valve.
[0006]
The heat storage tank 1 has high heat insulation properties, and stores heat while keeping the temperature of hot water stored inside. The heat storage tank 1 is provided with a heater 10, which is turned on at a predetermined time in the middle of the night and heats hot water in the heat storage tank 1 using midnight power that is inexpensive. The pipe Y <b> 3 is connected to the bottom surface of the heat storage tank 1, so that the low temperature bath water is accumulated below the heat storage tank 1, and the hot water heated by the heater 10 is accumulated above the heat storage tank 1. ing. 11 is a hot water temperature sensor.
[0007]
A pipe Y <b> 4 is provided in the upper part of the heat storage tank 1 so that high-temperature hot water storage is supplied to the temperature drop unit 2.
Supply of the hot water from the heat storage tank 1 is performed by the inflow pressure of the bath water from the pipe Y3 to the heat storage tank 1, and when the low temperature bath water is supplied from the pipe Y3 to the heat storage tank 1. Accordingly, high-temperature hot water storage is supplied from the heat storage tank 1 to the temperature drop unit 2 via the pipe Y4. Since the hot water is supplied to the heat storage tank 1 by opening and closing the valve 4, the supply of hot water to the temperature lowering section 2 is eventually controlled by opening and closing the valve 4.
[0008]
The heat storage tank 1 is provided with a water shortage sensor 12, and when water shortage in the heat storage tank 1 is detected during the operation mode, a water shortage warning is given and the pump 6 is stopped, It is designed for safety. On the other hand, when water shortage is detected by the water shortage sensor 12 when not in the operation mode, the valve 4 is opened to fill the heat storage tank 1 with water. With this configuration, the water filling is performed by the pipe Y3, and it is not necessary to install an upper lid or the like in the heat storage tank 1, so that the cost can be reduced.
[0009]
In this embodiment, the temperature drop unit 2 is configured by mixing hot hot water storage from the pipe Y4 and low temperature bath water from the pipe Y2.
Instead of this, it is also possible to lower the temperature by mixing fresh tap water, for example.
A safety device 3 is provided on the exit side of the temperature drop unit 2, and is configured to stop the supply and to ensure safety when hot water of a predetermined temperature or more comes out.
[0010]
FIG. 2 shows an example of specific configurations of the temperature drop unit 2 and the safety device 3.
In this example, a thermo valve 20 is provided at a joint portion between the pipe Y 2 and the pipe Y 4, and the function of the temperature drop unit 2 and the safety device 3 is given to the thermo valve 20. The pipe Y2 is connected to the inlet 29 of the temperature drop part 2, and the pipe Y4 is connected to the inlet 28 of the temperature drop part 2.
This thermo valve 20 is called a wax thermo valve, and wax is stored in a wax storage portion 23, and the piston 24 is moved by this thermal expansion to open and close the valve body 21. The valve body 21 is pressed in the opening direction by a spring 22, and when the wax storage portion 23 is warmed and the internal wax expands, the piston 24 moves to move the valve body 21 in the closing direction. The wax storage unit 23 is located in the mixing chamber 25 where the pipe Y2 and the pipe Y4 intersect. When the temperature is high, the valve body 21 is moved in a direction to close the high temperature side pipe Y4, and the temperature of the mixing chamber 25 is low. And the valve body 21 is moved in the opening direction to increase the amount of hot water storage. By this operation, the temperature of the mixing chamber 25 is configured to be a predetermined temperature (in this embodiment, about 50 ° C.).
Further, when the temperature of the mixing chamber 25 becomes higher than a predetermined temperature, the valve body 21 is completely closed as shown in FIG. 3, and hot water storage from the pipe Y4 is not supplied. Thereby, it can prevent that hot water is supplied to the piping Y5 side.
[0011]
FIG. 4 shows another embodiment of the temperature drop unit 2 and the safety device 3.
In this embodiment, the temperature drop portion 2 ′ is a connecting portion that simply connects the pipe Y2 and the pipe Y4. By setting the pipe diameters of the inlet 28 ′ and the inlet 29 ′ to a predetermined one, a predetermined temperature is provided. The temperature of the hot water storage is lowered to the temperature. That is, the temperature of the hot water storage from the pipe Y4 is substantially constant, and the temperature of the bath water when the valve 4 is opened is also substantially constant, so that the pipe diameters of the inlet 28 'and the inlet 29' are appropriately set. It is possible to obtain hot water having a predetermined temperature in the mixing chamber 25 ′.
[0012]
In this embodiment, the safety device 3 is provided on the pipe Y5 side of the mixing chamber 25 ′. The safety device 3 is composed of the thermo valve 20 described above, and when hot water of a predetermined temperature or higher arrives from the mixing chamber 25 'side, the wax inside the wax storage unit 23 is heated, and the piston 24 moves to move the valve body 21. As shown in FIG. 5, the inflow of high temperature hot water from the mixing chamber 25 'is completely closed against the force of the spring 22.
[0013]
Hot water supplied from the temperature drop unit 2 and the safety device 3 is connected to the circulation path X4 via the pipe Y5, and is mixed with the bathtub hot water circulating through the circulation path X4 and then supplied to the bathtub 9. It is like that.
Therefore, the hot water from the pipe Y5 is not supplied directly to the bathtub 9, but is supplied after being mixed with the circulating hot water in the circulation path X4, thereby preventing an accident or the like in which hot water is further supplied directly to the bathtub 9. it can.
[0014]
Next, the operation will be described.
Bath water in the bathtub 9 passes through the circulation path X1, is sucked into the pump 6, and is sent out to the circulation path X2. Normally, the valve 4 is closed, and all the bath water is sent to the sterilizer 7, purified by the filtration device 8 through the circulation path X 3, and returned to the bathtub 9 through the circulation path X 4.
When the hot water temperature sensor 5 detects that the temperature of the bath water has become a predetermined temperature or less, the control device (not shown) opens the valve 4 and passes a part of the bath water through the pipe Y1, the pipe Y2, and the pipe Y3. To the heat storage tank 1.
[0015]
Hot water heated by midnight power is stored in the heat storage tank 1, and when hot water is poured from the lower side, hot hot water is discharged from the upper side through the pipe Y4.
The hot water is mixed with the bath water from the pipe Y2 in the temperature drop unit 2 through the pipe Y4, and the temperature is lowered to a predetermined temperature.
If an accident such as clogging or failure of the pipe Y2 prevents the bathtub hot water from being supplied, the hot water in the mixing chambers 25 and 25 'becomes hot, so the valve body 21 is closed and hot water is supplied to the pipe Y5. Not supplied. As a result, an accident in which hot water is supplied can be prevented.
The hot water whose temperature has been lowered to a predetermined temperature is mixed with the circulating bath water in the circulation path X4 via the pipe Y5 and supplied to the bathtub 9. As a result, when the temperature of the bath water rises, this is detected by the hot water temperature sensor 5, the valve 4 is closed, and the supply of the hot water storage from the heat storage tank 1 is stopped.
[0016]
With the above operation, the temperature of the bath water in the bathtub 9 is maintained at a predetermined temperature. The heating in the heat storage tank 1 does not always have to be performed, and since late-night power is sufficient as in this embodiment, the cost for heating can be reduced.
Furthermore, since the temperature of the hot water storage from the heat storage tank 1 is once lowered by the temperature lowering unit 2 and further mixed with the bath water of the circulation path X4, the hot water is supplied to the bath 9 so 9 is safe without being supplied. Further, even when the pipe Y2 is clogged, the safety device 3 stops the supply of hot water, so that the safety level is further improved.
[0017]
【The invention's effect】
As described above, according to the bathtub hot water purification apparatus of the present invention, it is not always necessary to heat the bathtub hot water, midnight power or solar heat can be used as a heating heat source , and the means for storing, the bathtub, the cleaning mechanism, In principle, there is no need to introduce water from other systems, a closed loop can be formed thermally, and heat loss can be reduced, reducing the cost required for heating and running costs. Can be lowered.
In addition, the bath water can be kept at a constant amount, and high-temperature hot water is not directly supplied to the bath, so that there are effects such as safety.
[Brief description of the drawings]
FIG. 1 is a schematic block diagram showing an embodiment of the present invention.
FIG. 2 is an enlarged cross-sectional view showing an example of a temperature drop unit 2 and a safety device 3 in an embodiment of the present invention.
FIG. 3 is an operation explanatory diagram of the temperature drop unit 2 and the safety device 3 in FIG. 2;
FIG. 4 is an enlarged cross-sectional view showing an example of another temperature drop unit 2 ′ and a safety device 3 ′ in an embodiment of the present invention.
FIG. 5 is an operation explanatory diagram of the safety device 3 ′ in FIG. 4;
[Explanation of symbols]
1: heat storage tank, 2: temperature drop unit, 3: safety device, 4: valve, 5: hot water temperature sensor, 6: pump, 7: sterilizer, 8: filtration device, 9: bathtub, 10: heater, 11: Hot water temperature sensor, 12: Water shortage sensor, 20: Thermo valve, 21: Valve body, 22: Spring, 23: Wax storage part, 24: Piston, 25: Mixing chamber, 28: Inlet, 29: Inlet, 40: Check valve.

Claims (6)

In the bathtub hot water cleaning device that circulates the bathtub hot water between the bathtub and the cleaning mechanism by a circulation path,
Means for connecting to a predetermined position of the circulation path, introducing bath water, heating, keeping warm, and storing;
Means for lowering hot water storage at a predetermined temperature from the means for storing to a predetermined temperature;
Means for supplying hot water, which has been lowered to a predetermined temperature by the means for lowering, to the circulation path at a position closer to the bathtub than the predetermined position;
Means for detecting the temperature of the bath water;
Means for causing the supply means to supply hot water that has dropped to a predetermined temperature to the circulation path when the temperature detected by the means for detecting becomes equal to or lower than a predetermined temperature ,
The means for storing supplies the same amount of hot water as the bath water introduced to the bathtub side,
Bathtub purification device. The means for lowering lowers the temperature by mixing the hot water and bath water;
The bathtub hot water purification apparatus according to claim 1. The hot water storage is lowered to a predetermined temperature by performing mixing of the hot water storage and bath water using a thermo valve,
The bathtub hot water purification apparatus according to claim 2 . The mixing of the hot water storage and bath water is performed by connecting a pipe having a preset pipe diameter, and the hot water storage is lowered to a predetermined temperature by setting the pipe diameter.
The bathtub hot water purification apparatus according to claim 2 . When the temperature of the hot water from the means for lowering is equal to or higher than a predetermined temperature, a safety device is further provided for stopping the supply of the hot water.
The bathtub hot water purification apparatus of Claim 1 or 2 or 3 or 4 . When the temperature of the hot water from the thermo valve is equal to or higher than a predetermined temperature, the thermo valve is closed and the supply of the hot water is stopped.
The bathtub hot water purification apparatus according to claim 3 .

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