JPH09253423A - Apparatus for purifying bath water - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce running costs and to keep a bath water temperature always at a desired value by a method in which a means which introduces bath water, heats it, keeps its temperature, and stores it is provided, and the bath water is controlled so that when its temperature reached a prescribed value or below, stored water is mixed with the bath water to decrease the temperature of the mixture at a prescribed value or below to supply it to a bathtub. SOLUTION: A circulating pump 9 which divided a channel on the water outlet side into two directions is installed in a water introduction pipe 3, one channel is connected with a filter medium tank 12, and the other is connected with the lower part of a heat accumulation tank 13. A heat accumulating heater 18 and a heat accumulating tank lower part hot water temperature sensor 19 are set in the lower part of the tank 13, and bath water in the tank 13 is heated using late night power, and the upper part is connected with the other water introduction side of a mixing valve 17. It is checked whether a temperature detected by a water introduction side hot water temperature sensor 20 is lower than a prescribed value or not, and if it is lower, the valve 17 is adjusted to mix hot water from the tank 13. When the detected temperature reaches a prescribed value, the valve 17 is adjusted to stop the mixing of the hot water.

Description

Detailed Description of the Invention

[0001]

The present invention relates to a bath water purifying apparatus. In recent years, a bath water purifying apparatus has been widely used in which a process of pumping hot water from a bath tub and passing it through a predetermined purification mechanism and then returning the bath water to the bath tub is repeated to keep the hot water in the bath tub constantly clean. In such a bath water purifying apparatus, the bath water is forcibly circulated by a circulation pump, filtered by activated carbon or sterilized by ozone, etc., and at the same time, maintained at a predetermined temperature by an electric heater. Normal.

[0002]

However, in the conventional purifying apparatus, it is necessary to always heat the hot water with an electric heater in order to keep the hot water at an appropriate temperature, and there is a problem that the running cost becomes high. An object of the present invention is to solve the above-mentioned problems of the conventional technology.

[0003]

In order to achieve the above object, the present invention provides a bath water cleaning apparatus for circulating bath water for purification by circulating the bath water between the bath and the cleaning mechanism. Means, means for introducing the bath water to heat and keep the same while keeping the temperature, means for detecting the temperature of the bath water, and bath water temperature detected by the means for detecting. When the temperature becomes lower than a predetermined set temperature, the hot water stored in the means for supplying is mixed with the bath water, the temperature is lowered to a predetermined temperature or lower, and the means for supplying to the bath and the bath Means for detecting the temperature of the hot water supplied to the bath from the means for supplying, and stopping the means for circulating the bath water when the temperature of the hot water supplied to the bath is equal to or higher than a predetermined temperature It is characterized by having means for When the temperature of the hot water supplied to the bathtub is equal to or higher than a predetermined temperature, it is possible to further include means for notifying the user of that fact. Further, when the means for supplying to the bath has a jet function, the safety effect according to the present invention is great. Furthermore, the present invention relates to a bath water cleaning device for circulating and purifying bath water between a bath and a cleaning mechanism, and means for circulating the bath water and introducing and heating the bath water to keep it warm. Meanwhile, a means for storing, a means for detecting the temperature of the bath water, and a means for supplying the bath water when the temperature of the bath water detected by the means for detecting falls below a predetermined set temperature When the hot water stored in the means is mixed with the bath water, the temperature is lowered to a predetermined temperature or less, and the hot water is supplied to the bathtub from the means for supplying the hot water to the bathtub. , And means for notifying the supply. The notification may be made by the user only while taking a bath. In the above configuration, the means for storing performs a heating operation at an appropriate time to store the heated hot water while keeping it warm, so that it is possible to use, for example, late-night power or the like, thereby reducing the cost required for heating. It can be reduced. Further, since it is possible to use solar heat or the like and it is not necessary to always perform heating, the range of selection of the heat source is widened, and the heating cost can be reduced. Further, when supplying heated hot water from the means for storing in this manner, there is a fear of an accident such as a burn due to high-temperature hot water. For this reason, in the present invention, the temperature of the hot water supplied to the bath is first mixed by mixing with the bath water, and the temperature of the hot water supplied to the bath is detected. It is stopped for safety. At this time, the user can be notified visually or audibly that the temperature is higher than the predetermined temperature. Further, when hot water is supplied from the means for supplying it to the bathtub, the user can be informed in advance that heating will be performed by notifying this supply by voice or display. It is sufficient for the user to make this notification only while taking a bath, and it is possible to judge whether or not the user is taking a bath by switching the operation mode when taking a bath. Further, air may be mixed in the hot water supplied to the bathtub, which can prevent burns and the like due to high temperature hot water. The high-temperature hot water can be prevented to some extent by providing a shielding plate or the like at the discharge port. However, when the discharge port is provided with a jet function for generating bubbles, the shield plate is used. It is not possible to attach it, and the above configuration has an advantage that safety can be achieved regardless of the presence or absence of such a jet function. Further, the discharge of the hot water itself is stopped by stopping the means for circulation instead of simply shutting off, so that the prevention can be surely performed.

[0004]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, a main body 1 is usually installed outdoors, and is connected to a bathtub 2 by an inlet pipe 3 and an outlet pipe 4. The user operates, stops, etc. by using the remote controller 5 attached to the wall surface of the bathroom. The remote controller 5 is connected to a control board 6 in the main body by a cord, and displays an operation state, hot water temperature, time, various warnings, and the like in the main body. A water inlet 8 having a built-in pre-filter 7 is connected to the inside of the bathtub ahead of the water inlet pipe 3 so that bath water from which hair and the like have been removed is sucked into the main body. A circulation pump 9 is installed in the other main body of the water inlet pipe 3, and a check valve for water is provided in the middle of the water inlet pipe 3 so that the bath water in the main body does not return to the bathtub when the circulation pump is stopped. 10 is attached. The flow path is divided into two directions on the water outlet side of the circulation pump 9, and one is connected to the filter medium tank 12 via the throttle 11 and the other is connected to the water inlet side below the heat storage tank 13 by a hose. The filter medium tank 12 contains a filter medium 15 such as ceramic balls and activated carbon.
Purify bath water. When the filter material is clogged due to long-term use, the tank lid 16 is opened, the filter material is taken out, and it can be washed by hand with tap water. Filter material tank 1
The water outlet side of 2 is connected to one water inlet side of the mixing valve 17 by a hose.

A heat storage heater 18 and a heat storage tank lower hot water temperature sensor 19 are attached to the lower part of the heat storage tank 13, and the bath water in the tank is turned into hot water (about 85 ° C.) by using midnight power. .
In addition, since the density of bath water (about 40 ° C) and hot water are different,
Hot water corresponding to the bath moisture that has entered the heat storage tank 13 flows out from the heat storage tank 13, and the bath water and hot water do not mix in the heat storage tank 13. The upper part of the heat storage tank 13 is connected to the other water inlet side of the mixing valve 17 by a hose. The mixing valve 17 adjusts the internal valve of the bath water that has passed through the filter medium tank 12 and the hot water that has come out of the upper part of the heat storage tank 13 to an appropriate predetermined hot water temperature, and the bath nozzle 2 from the jet nozzle 21. It is designed to be discharged.

A water inlet side hot water temperature sensor 20 is attached to the water inlet pipe 3, and when the bath water temperature detected by the water incoming side hot water temperature sensor 20 is lower than the warming temperature set by the user, the mixing valve is installed. The bath water and hot water are mixed by 17 and discharged into the bath, and the bath water temperature reaches a predetermined value (0.5
Discharge only bath water into the bath when the temperature exceeds the temperature. This is done by controlling the valves of the mixing valve 17 by the control board 6. The valve is controlled by a pulse motor or the like and has a built-in phase detection sensor for determining its initial phase as shown in FIG. When hot water is mixed and discharged into the bath, a message to that effect is displayed on the LCD 106 and the buzzer 108 is sounded. This allows the user to know that hot water having a high temperature is supplied to the bathtub. This notification may be made only in the bathing mode described later. The LED 107 may be blinked instead of the LCD 106 display. Further, either one of the display and the buzzer 108 may be displayed.

The discharge side of the mixing valve 17 is connected to the jet nozzle 21 via the water discharge pipe 4. In order to detect the temperature of the discharged bath water, a water temperature sensor 22 on the outlet side is attached near the discharge side of the mixing valve 17. The water temperature sensor 22 on the outlet side is the mixing valve 1
It is used to prevent hot water from being discharged from the jet nozzle 21 due to problems such as 7 and clogging of the pipe on the bath water side. When the temperature of high temperature (about 55 ° C) is detected, the control board 6 The circulating pump 9 is stopped by a command from the. At the same time, a warning is displayed on the remote control 5 side,
It also sounds a warning buzzer. With this configuration, it is possible to prevent accidents such as a user being burned.

Solenoid valve for jet 23, ozone generator 24
Is connected to the jet nozzle 21 via an air tube 25, and during a clean operation other than when taking a bath, the jet solenoid valve 23 and the ozone generator 24 are turned on to discharge the air containing ozone from the jet nozzle 21. The bath water is sterilized. When bathing, ozone generator 24
Is turned off and the jet key of the remote controller 5 is used to turn on the jet solenoid valve 23 so that only the air is mixed and the hot water containing the air is discharged from the jet nozzle 21 to the bathtub. In this embodiment, when the hot water is mixed, the jet solenoid valve 23 is automatically turned on when a person is taking a bath so that air is mixed and discharged from the jet nozzle 21. . With this configuration, it is possible to soften the contact of the discharged hot water with the human body and eliminate the discomfort caused by the high temperature.

The water shortage sensor 1 is provided in parallel with the circulation pump 9.
4 is provided so that it is possible to detect a drop in the water level of the bath water and the stoppage of the circulation pump 9. This water shortage sensor 14
Is a system for detecting the differential pressure of the circulation pump 9, and one tube is connected to the water inlet side of the circulation pump 9 and the other tube is connected to the water outlet side of the circulation pump 9.

FIG. 2 shows an electrical block diagram. Remote control 5
Is connected to the control board 6 in the main body 1 by a communication code 101, and is connected to a CPU 103 via a communication interface 102. CPU 103 is R
It is a one-chip microcomputer with built-in OM and RAM. The LCD 106 and the LED 1 are transmitted via the driver 105 according to the information from the key 104 and the CPU 201 in the control board.
A predetermined display is made at 07 and the buzzer 108 is sounded. As described above, when the outlet water temperature sensor 22 detects a high temperature and the circulation pump 9 is stopped, a warning is displayed on the LCD 106 and the buzzer 108 sounds at the same time. The key 104 includes an operation key, a jet key, a bath key, a temperature setting key, and the like.

On the control board 6 in the main body, the water shortage sensor 14, the incoming water temperature sensor 20, the outgoing water temperature sensor 22, the heat storage tank lower hot water sensor 19, the phase detection sensor of the mixing valve 17, etc. Heat storage heater 18 which is an output device, circulation pump 9, ozone generator 2 which is a sterilizer
4, the jet solenoid valve 23, the mixing valve 17 and the like are connected via a relay, a driver and the like. And A
A via C100V AC power supply side leakage breaker 202
The C100V, the transformer 203, and the AC200V midnight power side earth leakage breaker 204 are connected.

Next, the inside of the control board 6 will be described. The DC power supply 205 receives the transformer secondary voltage, and receives the circuit voltage Vcc.
(+5 V), Vd (+12 V) which is the power source of the sterilizing device and the jet solenoid valve, and Vb (+36 V) which is the power source of the stepping motor of the mixing valve 17. The communication code 101 from the remote controller 5 is connected to the CPU 201 via the communication interface 206.
Information is exchanged with the CPU 103 on the remote controller side. Each hot water temperature sensor 20, 22, 19 is connected to the AD input terminal of the CPU 201 via the voltage converter 207 so that the voltage changes over the required temperature range.

The energization start detector 208 is a midnight power AC2.
The configuration is such that the start of energization of 00V is detected and the heat storage heater relay 210 is controlled by the driver 209.
When the start of energization is detected (11:00 pm), the hot water temperature in the lower part of the heat storage tank 13 from the heat storage tank lower hot water temperature sensor 19 at that time is checked to calculate the energization time required to boil the hot water in the heat storage tank. The ON time T of the relay 210 is determined. There is no hot water remaining in the heat storage tank 13,
If the hot water temperature is the same as that in the lower part of the heat storage tank 13, the relay 210 is turned on after (8-T) hours from 11:00 pm, and thereafter, the hot water temperature sensor 19 at the lower part of the heat storage tank is changed to hot water (about 85 ° C). Until (7 am), the heat storage heater 18 is energized. When hot water remains in the heat storage tank 13, it boils early, and the heat storage heater 18 is turned off before 7 am.

When the operation key in the remote controller 5 is pressed to enter the operation mode, the relay 211 is turned on and the circulation pump 9 is energized to circulate the bath water. Normally, the driver 212 is turned on to operate the ozone generator 24 to sterilize the bath water, but when the bath key in the remote control is pressed, the bath mode is entered, and the driver 212 is turned off for 1 hour to turn off the sterilizer. To prevent the user from burning ozone.

When the jet key is pressed during the bathing mode, the driver 213 is turned on to energize the jet solenoid valve 23,
Air is supplied to the jet nozzle to enjoy a stream of water with bubbles. And if you press it again, driver
Is turned off to create a bubble-free stream. After one hour from pressing the bath key, the mode is automatically switched to the clean mode, and the driver 212 and the driver 213 are turned on to supply the air mixed with ozone to the jet nozzle to sterilize the bath water.

When the power is turned on, the motor in the mixing valve 17 is moved, and the signal from the phase detection sensor is received to perform the initial setting. While the circulating pump 9 is in operation, the warming temperature set by the temperature setting key in the remote controller and the inlet-side hot water temperature sensor 2
The detected temperature of 0 is compared, the motor in the mixing valve 17 is operated, the valve is adjusted to mix an appropriate amount of hot water from the heat storage tank 13, and the bath water temperature is kept within a range from the heat retention temperature to the heat retention temperature + 0.5 ° C. Is configured to control. When hot water from the heat storage tank 13 is mixed, it is determined whether or not the bathing mode is set,
In the bathing mode, the LCD 106 displays or LE
D107 blinks and the buzzer 108 sounds. Also, the jet solenoid valve 23 is opened to mix air.

Reference numeral 216 is an EEPROM that stores preset values such as the heat retention temperature and the operating mode set by the user so that they do not have to be reset when the power is turned on again after a power failure.

FIG. 3 is a detailed view of the outlet water temperature sensor 22 and the circulation pump 9 in the control board 6, and FIG. 4 shows a processing program for the outlet water temperature sensor 22. In FIG. 3, the hot water temperature sensor 22 on the outlet side, which is a thermistor, is connected to the + input terminal of the comparator IC1, and a divided voltage with the resistor R1 is applied. Reference numerals VR1 and R2 denote reference voltage circuits, which adjust the volume VR1 so that the thermistor has a voltage level VH when the temperature is high (about 55 ° C.) and supplies it to the minus input terminal of the comparator. The output of the comparator is C
It is connected to the input port P1 of the PU 201. R3 is a pull-up resistor. When the operation key of the remote controller 5 is pressed to enter the operation mode, the output port P of the CPU 201 is output.
2 becomes H level, the transistor TR1 is turned on, the relay 211 operates, the circulation pump 9 is energized, and the circulation of the bath water starts. The maximum temperature that can be set with the temperature setting keys on the remote control 5 is 45 ° C, and the temperature of the bath water coming out of the mixing valve 17 is usually high (55 ° C).
Will not be. Therefore, the resistance of the thermistor is large,
The + input terminal voltage of the comparator is higher than VH, and its output is at H level. Therefore, the operation of the pump is continued.

However, when the following cases occur, hot water may come out from the mixing valve 17. Since the filter material 15 is not regularly washed, the filter material tank 12 is clogged, and the filter material tank 1
When the flow rate of the bath water passing through 2 is extremely low. When the valve in the mixing valve 17 has a problem and the flow rate of the bath water on the filter medium tank 12 side is extremely reduced. The CPU 201 runs away due to external noise or static electricity. However, when the control of the mixing valve 17 is disabled and the flow rate of the bath water on the side of the filter medium tank 12 is extremely reduced, the temperature from the mixing valve 17 becomes high (55 ° C).
When water comes out, the resistance of the thermistor 22 decreases, the + input voltage of the comparator falls below VH, and when the output of the comparator becomes L level, the transistor TR1 turns off and the circulation pump 9 stops.

If the CPU 201 does not run out of control, the CPU 201 executes the water discharge side hot water temperature sensor processing program as shown in FIG. 4 and recognizes that the input is at the L level (S10).
A hot water discharge warning is displayed at 06 and the buzzer 108 is sounded to inform the user (S11, 12). Then, the operation is designated as the stop mode, and the circulation pump 9 is stopped (S
13).

The operation of hot water mixing will be described with reference to FIG.
The proper temperature of the bath water is set (step S21), and it is checked whether the temperature detected by the water temperature sensor 20 on the incoming side is lower than the set temperature (step S22). If low,
It is checked whether the bath key is pressed (step S2
3) If it is pressed, it is judged that the bath is taking place, and LC is mixed with hot water
Display on D106 or blink LED107. At the same time, the buzzer 108 sounds (step S24). Then, the jet solenoid valve 23 is turned on to mix air (step S25). Then, the mixing valve 17 is adjusted to mix hot water from the heat storage tank 13 (step S2).
6) When the temperature detected by the incoming water temperature sensor 20 reaches the set temperature (step S27), the mixing valve 17
Is adjusted to stop mixing hot water (step S28).
Then, the display of the LCD 106, the blinking of the LED 107 or the buzzer 108 is stopped (step S29), the solenoid valve 23 for jet is turned off, and the mixing of air is also stopped (step S30).

With the above construction, if the hot water from the mixing valve 17 exceeds a predetermined temperature for some reason, the circulation pump 9 is stopped, and the remote controller 5 displays a warning and a buzzer. Can prevent accidents. Further, when hot water is mixed, a notification to that effect is given, so that the user can know in advance that hot water will be discharged. In addition, since air is mixed in, no discomfort is given to the user.

[0023]

As described above, according to the bath water purifying apparatus of the present invention, it is not necessary to constantly heat the means for storing, and it is possible to use the late-night electric power, the solar heat or the like as the heating heat source. The cost can be reduced and the running cost can be reduced. Further, when the hot water supplied to the bathtub having a temperature equal to or higher than the predetermined temperature becomes equal to or higher than the predetermined temperature, the means for circulating the liquid is stopped and the supply of the hot water is stopped, so that it is possible to prevent an accident such as a burn due to the hot water. become. Further, when hot water is mixed, a notification is given, so that the user can know in advance, and there is an effect that high-temperature hot water is not suddenly discharged and agitated.

[Brief description of drawings]

FIG. 1 is a schematic block diagram showing an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a main body 1, a remote controller 5, and a control board 6 according to the embodiment of the present invention.

FIG. 3 is a detailed view of a water outlet side hot water temperature sensor 22, a CPU 201, and a circulation pump 9 according to the embodiment of the present invention.

FIG. 4 is a flowchart diagram illustrating the operation of the embodiment of the present invention.

FIG. 5 is a flow chart for explaining the operation of the embodiment of the present invention.

[Explanation of symbols]

1: Main body, 2: Bathtub, 3: Water inlet pipe, 4: Water outlet pipe, 5: Remote controller, 6: Control board, 7: Prefilter, 8: Water inlet, 9: Circulation pump, 10: Water check valve, 11: throttle, 12: filter material tank, 13: heat storage tank, 14: water shortage sensor, 15: filter material, 16: tank lid, 17: mixing valve, 18: heat storage heater, 19: heat storage tank lower hot water temperature sensor, 20 : Inlet water temperature sensor, 21: Jet nozzle, 22: Outlet water temperature sensor, 23: Jet solenoid valve, 24: Ozone generator, 25: Air tube, 2
6: auxiliary heater, 101: communication code, 102: communication interface, 103: CPU, 104: key, 10
5: driver, 106: LCD, 107: LED, 10
8: buzzer, 201: CPU, 202: earth leakage breaker,
203: transformer, 204: earth leakage breaker, 205: DC power supply, 206: communication interface, 207: voltage converter, 208: energization start detector, 209: driver, 2
10: Heat storage heater relay, 211: Relay, 212:
Driver, 213: driver, 214: driver, 21
5: waveform shaping circuit, 216: EEPROM.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display location C02F 1/50 531 C02F 1/50 531R 540 540A 550 550C 560 560B 1/78 1/78 F24H 9 / 00 F24H 9/00 W 9/20 9/20 A (72) Inventor Michio Hisatake, 1463, Sakuma-cho, Hachioji-shi, Tokyo Within Jamme Sewing Machine Co., Ltd. (72) Takumi Ando, Hazama, Hachioji, Tokyo No. 1463, Machi Nozomi Sewing Machinery Co., Ltd. (72) Inventor, Mineo Suzuki, No. 1, Kitakanyama, Otakamachi, Midori-ku, Nagoya-shi, Aichi 20 Chubu Electric Power Co., Inc. (72) Inventor, Tadashi Nozawa, Toyama 15-1 Ushijima-cho, Toyama City, Toyama Prefecture Hokuriku Electric Power Company (72) Inventor Shuichi Aoyama 15-1 Ushijima-cho, Toyama City, Toyama Prefecture From Hokuriku Electric Power Company (72) Person - awareness Osamu three Osaka-shi, Osaka, Kita-ku Nakanoshima 3-chome No. 3 No. 22 Kansai Electric Power Co., Ltd. in the (72) inventor blue tree light seafood Osaka-shi, Osaka, Kita-ku Nakanoshima 3-chome No. 3 No. 22 Kansai Electric Power Co., Ltd. in

Claims (5)

[Claims] 1. A bath water cleaning device for circulating and purifying bath water between a bath and a cleaning mechanism, and means for circulating the bath water, and introducing and heating the bath water to keep it warm. Meanwhile, a means for storing, a means for detecting the temperature of the bath water, and a means for supplying the bath water when the temperature of the bath water detected by the means for detecting falls below a predetermined set temperature. The hot water stored in the means is mixed with the bath water, the temperature is lowered to a predetermined temperature or lower, and the means for supplying to the bathtub and the temperature of the hot water supplied to the bathtub from the means for supplying to the bathtub are adjusted. Bath water comprising means for detecting, and means for stopping the means for circulating the bath water when the temperature of the hot water supplied to the bath is equal to or higher than a predetermined temperature. Purification device. 2. The bath water purifying apparatus according to claim 1, further comprising means for notifying a user that the temperature of the hot water supplied to the bathtub is equal to or higher than a predetermined temperature. 3. A bath water cleaning device for circulating and purifying bath water between a bath and a cleaning mechanism, and means for circulating the bath water, and introducing and heating the bath water to keep it warm. Meanwhile, a means for storing, a means for detecting the temperature of the bath water, and a means for supplying the bath water when the temperature of the bath water detected by the means for detecting falls below a predetermined set temperature. Means for mixing the hot water stored in the means with the bath water, lowering the temperature to a predetermined temperature or lower, and supplying the hot water to the bathtub; and when hot water is supplied to the bathtub from the means for supplying the hot water to the bathtub. A means for notifying the supply, and a bath water purifying apparatus comprising: 4. The bath water purifying apparatus according to claim 3, wherein the means for notifying the supply gives the notification only when the user is bathing. 5. The bath water purifying apparatus according to claim 1, wherein the means for supplying to the bath tub supplies air to the bath by mixing air into the mixed water of the hot water and the bath water. .