JPH1023982A - Device for cleaning water in bathtub - Google Patents

Abstract

PROBLEM TO BE SOLVED: To rapidly heat water in a bathtub under with a precise temperature control at a low cost. SOLUTION: An external air temperature sensor 17 letting a thermo-sensitive part face the outside of a casing 18 is attached to a main body 4 of device connecting a hot water sucking pipe 3 and a hot water spouting pipe 9 and totally arranging purifying treatment equipment such as filtering tank 5, circulating pump 6, ultraviolet sterilizing device 14 and auxiliary heater 16. Then, a hot water tank 16 is provided for heating and pooling hot water in the bathtub through any inexpensive heat source such as late-night power, solar heat or kerosene, and the temperature of hot water in the bathtub is regulated by mixing the hot water pooled in the hot water tank 16 and heating it through the auxiliary heater based on the exact duty based on the external air temperature detected by the external air temperature sensor.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bath apparatus, and more particularly to a bath apparatus, in which hot water in a bath tub is forcibly circulated, while filtering, sterilizing, and other cleaning treatments are performed, and at the same time, the bath temperature is maintained at a bath temperature. The present invention relates to a so-called 24-hour bath apparatus in which the user can take a bath at any time for 24 hours.

[0002]

2. Description of the Related Art Recently, a bathtub hot water purifying apparatus, that is, a 24-hour bath, which constantly keeps hot water in a bathtub clean and at an appropriate temperature, enables comfortable bathing for 24 hours, and saves water, has been actively used. It has become.

[0003] An example of such an apparatus for cleaning bath water is shown in FIG. 6, wherein 1 is a bath tub, 2 is hot water, 3 is a suction pipe for pumping hot water 2 in bath tub 1, and 4 is a hot water suction pipe. An apparatus main body in which devices for cleaning the hot water pumped up by the water suction pipe 3 are collectively provided, and 9 is a fountain pipe for ejecting the hot water treated by the apparatus main body 4 into the bathtub 1 again. .

In order to remove dirt from the bath water, a filter tank 5 containing various types of granular filter media such as activated carbon, activated stones, and porous ceramic balls, and a fibrous filter is used. A circulation pump 6 for forcibly circulating hot water, an electric heater 7 for keeping the temperature of the hot water at an appropriate temperature, and an ozonizer 8 as an ozone sterilizer for the hot water.
Etc. are provided.

[0005] Reference numeral 10 denotes a prefilter attached to the end of the water suction pipe 3 for removing large dirt before being pumped to the apparatus main body 4. Reference numeral 11 denotes a jet flow of the hot water after the cleaning treatment as a high-speed jet flow in the bathtub 1. Suction pipe 1
Reference numeral 2 denotes a jet nozzle connected to the ejector unit.

A solenoid valve 13 for opening and closing a pipe is provided at the end of an intake pipe 12 connected to an ejector portion of the jet nozzle 11, and an ozonizer 8 is provided on the way. When the solenoid valve 13 is opened, the jet nozzle 11 is opened. Air is sucked in from the suction pipe 12 by the suction force of the air, this air is mixed into the hot water in the ejector section 24, and a jet flow is jetted out of the jet nozzle 11 into the bathtub 1 to form a bubble bath. The air sucked into 12 is ozonized and jetted into the bathtub 1 to sterilize the hot water 2 with ozone.

[0007]

However, in the apparatus configured as described above, since the hot water is heated by the electric heater, the running cost is increased, and the capacity of the electric heater is 800 W in relation to the wiring capacity. The heating capacity is insufficient to heat 200 liters of bath water, so that the heating speed becomes slow.

As a result, it is difficult to raise the temperature of the hot water during bathing, and it is difficult to increase the temperature when the hot water is replaced or when the operation of the apparatus has been stopped for a long time. Takes a very long time to heat the hot water to the bathing temperature.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a bathtub hot water purifying apparatus which solves the above-mentioned drawbacks of the prior art, reduces heating costs, and can rapidly heat hot water to a bathing temperature. .

[0010]

That is, according to the present invention, the inside of a device body provided with a filter tank for removing bath water from a hot water suction pipe by a circulation pump and a sterilizer for sterilizing with ozone or ultraviolet rays is provided. A bath water purifier that circulates and cleans and then re-blows it out of the hot water pipe into the bath tub is equipped with a hot water tank that stores a part of the bath water as hot water in order to adjust the temperature by mixing the hot water with the bath water. Then, an auxiliary heater and a temperature sensing part that operate according to the outside air temperature, which compensate for the lack of heat capacity in the hot water temperature adjustment by the hot water stored in the hot water tank, face the outside of the housing to detect the outside air temperature. An air temperature sensor is provided, and the hot water stored in the hot water tank is mixed according to the temperature of the hot water detected by the hot water temperature sensor, and at the same time heating by an auxiliary heater is performed according to the outside air temperature detected by the outside air temperature sensor. Configured to adjust in combination.

Thus, the heating speed is increased by mixing the hot water, and at the same time, the heating cost is reduced by using late-night power, solar heat, kerosene or the like as a heat source for heating the hot water, and further, the heat source is exposed outside the housing of the apparatus body. The temperature of the hot water stored in the hot water tank is insufficient even if the outside temperature is low and the heat capacity of the hot water stored in the hot water tank is insufficient because the outside air temperature sensor accurately detects the outside air temperature and is heated by the auxiliary heater according to the outside air temperature. Be able to adjust properly.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a basic embodiment of the present invention will be described with reference to the piping diagram of FIG. 1. The same components as those of the conventional example are denoted by the same reference numerals.

In this embodiment, the apparatus main body 4 is provided with an ultraviolet sterilizer 14 as a sterilizer, so that the suction pipe 12 is not shown as in the conventional example. A jet nozzle 11 with an intake pipe 12 connected thereto is attached to enjoy a bubble bath.

Reference numeral 15 denotes a hot water temperature sensor provided in the cleaning pipe. The hot water temperature sensor 15 constantly detects the temperature of the bathtub hot water, and the control device performs an operation based on the hot water temperature detected by the hot water temperature sensor 15. Control is performed to maintain the hot water temperature set by the bather.

Reference numeral 16 denotes an auxiliary heater, which is provided with a predetermined duty when the control unit determines that the heat capacity is insufficient to mix hot water stored in a hot water tank to be described later and adjust the hot water temperature due to a low outside air temperature. Operates to heat the bath water.

Reference numeral 17 denotes an outside air temperature sensor, which is disposed outside a housing 18 of the apparatus main body 4 with a temperature sensing portion facing the outside, and which is affected by heat generated from various kinds of processing equipment as in the case where the outside is disposed inside. Make it possible to accurately detect the outside temperature without receiving it.

Next, the outside temperature sensor 17 is connected to
A specific example in which the device is mounted on the apparatus main body 4 so as to face the outside will be described with reference to FIGS.

As shown in FIG. 2, the apparatus main body 4 includes a housing 18.
Since it is horizontally supported and supported by a plurality of height-adjustable legs 20 attached to the bottom surface 19 of the vehicle, the outside air temperature sensor 17 is made to face the leg 20 with the temperature sensing part circled. And attach it.

As shown in FIGS. 3 and 4, the leg portion 20 of the apparatus body 4 has the adjusting leg 21 attached to the bottom surface 19 via the mounting plate 22, so that the outside air temperature sensor 17 such as a thermistor can be used. FIG. 3 shows an embodiment in which a temperature sensing part at the tip is inserted into the mounting plate 22 by protruding into the bottom surface 19 of the apparatus main body 4 and inserted into the mounting plate 22, and FIG. Was.

In both of these embodiments, the outside air temperature sensor 17 has a temperature sensing portion at the tip located a few centimeters away from the bottom surface 19 of the housing 18 of the apparatus main body 4, so that the influence of internal heat is reduced. The outside temperature can be detected without receiving it, and it can be easily attached without using any special fixture because it is attached using the leg portion 20. In addition, the temperature sensing portion is protected by being surrounded by the adjuster leg 21 or the attachment plate 22. Therefore, there is no fear of being damaged even if the device is arranged so as to face the outside of the apparatus main body 4.

Reference numeral 23 denotes a hot water tank for storing the bath water 2 as hot water of about 80 ° C.
A water inlet 24 for sucking the bath water 2 is provided on the lower surface, and a water outlet 25 for discharging the hot water is provided on the upper surface. The hot water tank 23 is of an electrothermal type, so that it serves as a heat source for heating the bath water to be stored. A hot water heater 26 is provided in a lower part.

The bath water stored in the hot water tank 23 as hot water can be heated by a solar heating type, a kerosene heating type, or a combination of these types in addition to the electric heating type which is heated by the hot water heater 26 as described above. Of course, in the case of the electric heating type, the nighttime power with low power cost is used as much as possible.

Reference numeral 27 denotes a water suction pipe connected to the water suction port 24 of the hot water tank 23 at one end for sucking the bath water 2 into the hot water tank 23, and 28 denotes one end for flowing out the hot water stored in the hot water tank 23. A water outlet pipe connected to the water outlet 25, and the water suction pipe 27 and the other end of the water outlet pipe 28 are connected to the fountain pipe 9 via a switching valve 29 and a mixer 30 that opens and closes a flow control valve according to the hot water temperature. doing.

FIG. 5 is a control block diagram relating to the hot water temperature control of the apparatus configured as described above.

A key input device 31 is provided with various keys for setting operating conditions of the device, including a start / stop key for operating or stopping the device. A hot water temperature setting key 32 for setting the hot water temperature is also provided.

Reference numeral 15 denotes a hot water temperature sensor provided for detecting the temperature of the hot water flowing through the cleaning pipe for controlling the hot water temperature. Reference numeral 33 is stored in the hot water tank 23 although not shown. A hot water sensor for controlling the temperature of the hot water, and 17 is an outside air temperature sensor for detecting the above-mentioned outside air temperature.

Reference numeral 34 denotes a control device for controlling the entire apparatus. The control device 34 includes a CPU 35 as a central processing unit, a control program for overall control of the apparatus including hot water temperature control, and a control program. This is a microcomputer including a ROM 36 as a storage device storing control data and a RAM 37 as a temporary data storage device for arithmetic processing.

Reference numeral 38 denotes a circulating pump driving circuit for driving the circulating pump 6, and 39 denotes a hot water heater 2 of the hot water tank 23.
A hot water heater drive circuit for supplying electric power to 6, and a switching valve drive circuit 40 for driving the switching valve 29.

Reference numeral 41 denotes an auxiliary heater drive circuit which operates the auxiliary heater 16 in accordance with the outside air temperature detected by the outside air temperature sensor 17. Reference numeral 42 denotes a display device drive circuit. 3 is a circuit for displaying the operating state of the vehicle.

Next, the hot water temperature setting key 3 is set based on the hot water temperature detected by the hot water temperature sensor 15 in the device configured as described above.
Control for maintaining the hot water temperature set in 2 will be described.

When the hot water temperature sensor 15 detects that the temperature of the hot water circulating in the cleaning pipe of the apparatus body 4 has become lower than the set hot water temperature, the switching valve 29 is switched so that the water suction pipe 27 side is opened. .

Then, the hot water 2 in the bathtub 1 is sucked from the hot water suction pipe 3, cleaned by the apparatus main body 4, and flows out to the hot water pipe 9. At this time, the switching valve 29 is open to the water suction pipe 27 side. The hot water flows into the water absorption pipe 27, flows into the hot water tank 23 from the water suction port 24, and the same amount of hot water as the flowed water flows into the hot water tank 23 from the water discharge port 25.
Flow out to 8.

At this time, since the flow control valve of the mixer 30 is opened in accordance with the temperature of the hot water, an amount of hot water corresponding to the temperature of the hot water flows from the water discharge pipe 28 into the spout 9 through the mixer 30. Hot water mixed with hot water and heated is squirted from the fountain pipe 9 into the bathtub 1.

As described above, the hot water 2 in the bathtub 1 is mixed with the hot water stored in the hot water tank 23 and continues to be heated until the temperature reaches the set temperature. Is switched so that the side of the water absorption pipe 27 is closed, and the hot water 2 in the bathtub 1 is sucked from the water absorption pipe 3, cleaned by the apparatus main body 4, mixed with hot water and heated without being heated by the bathtub 9. Squirt into one.

However, a problem arises when the hot water tank is stored in advance in the hot water tank 23 as hot water, and a method of heating purified water in which an appropriate amount of the hot water is mixed in accordance with the temperature of the hot water. Is the total heat capacity held by the boiling water.

That is, although the total heat capacity of the hot water stored in the hot water tank 23 is naturally determined by the capacity of the tank, the capacity of the hot water tank 23 installed at home has its own limit.

When the bath water is heated by the stored hot water in the hot water tank 23, low-temperature bath water is stored in place of the hot water that has flowed out. The heating is not performed until the heating time comes.

As described above, since the hot water tank 23 cannot be heated and replenished as hot water immediately after the hot water flows out and a low-temperature bath water flows in instead of the hot water, only the heat capacity of the hot water stored in advance is obtained. Then, there is a concern that there is a shortage of keeping the bath water at an appropriate temperature for 24 hours, and this concern is particularly great in a severe winter.

In order to compensate for the shortage of heat capacity of the hot water tank 23, an auxiliary heater 16 is provided in the cleaning pipe, and the bath heater is used by the auxiliary heater 16 based on a predetermined duty according to the outside air temperature. To heat.

Therefore, when the outside air temperature cannot be accurately detected by the outside air temperature sensor 17, the duty is set on the safe side to prevent the hot water temperature from being unable to maintain the set temperature. The operation time becomes longer and the heating cost increases.

However, as in the present invention, the outside air temperature sensor 1
7 is arranged so that the outside air temperature can be accurately detected without being affected by the heat generated inside the apparatus body 4, the duty for operating the auxiliary heater 16 can be accurately adjusted according to the outside air temperature. You will be able to set it.

As a result, the bath tub hot water mixes the hot water stored in the hot water tank 23 with an appropriate amount according to the hot water temperature, and at the same time, the auxiliary heater 1 according to the outside air temperature detected by the outside air temperature sensor 17.
In step 6, heating is performed with an appropriate duty to adjust the hot water temperature.

As a result, the temperature of the hot water is kept at an appropriate level for 24 hours even in severe winter, and even when the auxiliary heater 16 is heated, the temperature is only the minimum necessary based on the duty properly determined according to the outside temperature. Costs are cheap.

[0044]

The bathtub hot water purifying apparatus of the present invention is constructed as described above, and is mixed with hot water stored in a hot water tank by heating with a cheap heat source such as midnight power, solar heat or kerosene. Since the hot water is heated, the heating cost is low and the heating speed is high.

In addition, an auxiliary heater is provided to compensate for the shortage of the heat capacity of the hot water stored in the hot water tank. At the same time, an external temperature sensor is provided with a temperature sensing part facing the outside of the apparatus main body to control the external temperature. It is configured so that it can be detected accurately.

As a result, the hot water tank does not need to be so large, so that the installation of the apparatus becomes easy,
At the same time, the auxiliary heater is operated based on an appropriately determined duty according to the outside air temperature to perform auxiliary heating without incurring much heating cost, so that the bathtub hot water can be kept at an appropriate temperature for 24 hours even in severe winter.

[Brief description of the drawings]

FIG. 1 is an example piping diagram,

FIG. 2 is a side view of an apparatus main body,

FIG. 3 is a diagram showing a first example of mounting an outside air temperature sensor,

FIG. 4 is a diagram showing a second example of mounting the outside air temperature sensor,

FIG. 5 is a block diagram of hot water temperature control,

FIG. 6 is a piping diagram of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bath tub 2 Hot water 3 Water suction pipe 4 Main body of device 5 Filtration tank 6 Circulation pump 9 Spouting pipe 14 Ultraviolet sterilizer 15 Hot water temperature sensor 16 Auxiliary heater 17 External temperature sensor 18 Housing 23 Hot water tank 27 Water suction pipe 28 Outflow pipe

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical indication location C02F 1/50 531 C02F 1/50 560Z 560 F24H 1/00 302D F24H 1/00 302 B01D 35/02 J

Claims (1)

[Claims] 1. A cleaning bath after forcibly circulating and purifying the inside of an apparatus main body provided with a filtration tank for removing dirt by pumping bath water from a suction pipe by a circulation pump and a sterilizing apparatus for sterilizing with ozone or ultraviolet rays. In the bath tub hot water purifying device that spouts again into the bath tub, a hot water tank that stores a part of the bath tub hot water as hot water in order to mix hot water with the bath tub hot water and adjust the hot water temperature is deployed, An auxiliary heater that operates according to the outside air temperature that compensates for the lack of heat capacity in the hot water temperature adjustment by the stored hot water and an outside air temperature sensor that detects the temperature of the outside air with the temperature sensing part facing the outside of the housing are provided. The hot water stored in the hot water tank is mixed according to the hot water temperature detected by the hot water temperature sensor, and simultaneously adjusted by using the auxiliary heater in accordance with the outside air temperature detected by the outside air temperature sensor. Tub of hot water cleaning system.