JPH09280662A - Bath water cleaning apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure rapid heating and prevent a danger such as a burn in a bath water cleaning apparatus where bath water is circulated between a bathtub and a cleaning mechanism for cleaning by providing means for leading and heating, and storing bath water, and intermittently supplying the stored hot water to the bathtub. SOLUTION: There are provided in order a bacterial lamp, a filtering material tank 10, and an auxiliary heater 26 on the outlet side of a circulation pump 9 interposed on a water inlet pipe 3 connected with a bathtub 2, and a heat stored layer 11 is selectively connected with the outlet side with the aid of a heating valve 16. A temperature sensor 20 detects bath water temperature, and controls the heating valve 16 when the detected bath water temperature is lower than set temperature to open a water outlet on the side of the heat storage tank 11 and hence lead high temperature stored high temperature hot water from the heat storage tank 11 to the side of a mixing valve 17. Further, the circulation pump 9 is turned on and off for each several second whereby high temperature hot water is intermittently supplied from the mixing valve 17 to the bathtub 2. Thereafter, the heating valve 16 is closed on its side of the heat storage tank 11, and the circulation pump 9 is operated to make uniform the temperature of the bath 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, since the electric heater has a small amount of heat, it is not possible to raise the temperature rapidly. Therefore, it is necessary to always keep the temperature of the bath water by the electric heater. In addition to the high cost, there was a large thermal loss due to constant heating, and there was a problem that the running cost as a whole increased. In order to solve such a problem, hot water heated by a low-cost heat source such as late-night power is stored in a heat storage tank, and this high-temperature hot water is supplied to the bathtub, which enables high-speed heating and cost reduction. Attempts have been made to realize However, in the case of such a system, high-speed hot water is supplied to the bathtub at a low cost and high-speed heating, but there is a possibility that the human body in the bathtub may be burned, etc. However, there are drawbacks such as giving a user discomfort. The present invention has been made in view of the above problems,
An object of the present invention is to provide a bath water cleaning device that can prevent the risk of burns or the like when supplying high-temperature hot water to a bath.

[0003]

In order to achieve the above object, the present invention provides a bath water purifying device for circulating bath water between a bath and a cleaning mechanism to purify the bath water.
It is characterized by comprising means for heating and storing and means for intermittently supplying hot water of a predetermined temperature from the means for storing to the bath. Since the means for supplying water intermittently supplies hot water to the bathtub, a large amount of high-temperature hot water does not flow into the bathtub at one time, and there is no danger to the human body such as burns. Further, further comprising means for detecting the temperature of the bath water, the means for supplying, until the temperature of the bath water reaches a predetermined temperature when the temperature of the bath water falls below a predetermined value. , Is configured to intermittently supply hot water of a predetermined temperature from the means for storing to the bathtub, automatically supply hot water of a predetermined temperature to the bathtub, and maintain the hot water temperature of the bathtub at a predetermined value It is also possible to do so.

[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 operation panel 5 attached to the wall surface of the bathroom. Operation panel 5
Is connected to the control device 6 in the main body by a cord and displays the operating state, hot water temperature, time, various warnings, etc. in the main body.

A pre-filter 8 is installed in the bathtub beyond the water inlet pipe 3.
Is connected and bath water is sucked into the main body from here. A circulation pump 9 is attached to the other main body side of the water inlet pipe 3. The water discharge side of the circulation pump 9 is connected to the sterilization lamp 7, and the bath water is sterilized here and then sent to the filter medium tank 10 for purification there. The filter medium tank 10 contains a filter medium such as ceramic balls and activated carbon to purify bath water.

An auxiliary heater 2 is provided on the outlet side of the filter medium tank 10.
6 is provided, and the outlet side of the auxiliary heater 26 is connected to the heating valve 16. The outlet side of the heating valve 16 is selectively connected to the heat storage tank 11. Normally, it is connected only to the water outlet pipe 4 side and the heat storage tank 11 side is closed. Only when heating is required, the heat storage tank 11 is connected to supply the bath water from the lower part of the heat storage tank 11. There is. The water outlet pipe 4 is connected to the jet nozzle 21, and the bath water is returned from here to the bathtub 2.

A heat storage tank heater 18 is attached to the heat storage tank 11 so as to heat the bath water introduced by using midnight power to a predetermined temperature (about 85 ° C.). Also,
In the heat storage tank 11, an upper temperature sensor 13, a residual hot water sensor 14,
And a lower temperature sensor 15 are attached to the heat storage tank 11
The temperature and the remaining amount of hot water inside can be detected.
Since the bath water (about 40 ° C) and the high temperature water have different densities, the high temperature water corresponding to the bath moisture in the heat storage tank 11 is the heat storage tank 11.
The bath water and the high temperature water do not mix in the heat storage tank 11. The upper part of the heat storage tank 11 is connected to the other water input side of the mixing valve 17. The mixing valve 17 adjusts the internal valve of the bath water from the heating valve 16 and the high temperature water coming out from the upper part of the heat storage tank 11 to an appropriate predetermined hot water temperature, and the safety valve 19
The water is supplied to the water discharge pipe 4 through the jet nozzle 21 and is intermittently discharged from the jet nozzle 21 into the bathtub 2.

A bath water temperature detecting sensor 20 is attached to the water inlet pipe 3, and the bath water temperature detecting sensor 20 is set at a temperature kept by the user.
When the bath water temperature detected by the bath water temperature detection sensor 20 is lowered, the heat storage tank 11 side of the heating valve 16 is opened to supply the bath water to the heat storage tank 11, whereby the heat storage tank 11 is heated to a high temperature. The hot water is supplied to the mixing valve 17, where the bath water and the high temperature water are mixed and discharged intermittently into the bath. The bath water temperature is a predetermined value (0.5 ° C
When the temperature exceeds the limit, stop mixing hot water and discharge only the bath water into the bath. This is performed by controlling the heating valve 16 by the control device 6. The valve is controlled by a pulse motor or the like. The discharge side of the mixing valve 17 is connected to the water discharge pipe 4 and is connected to the jet nozzle 21.

The auxiliary heater 26 is used when the temperature of the hot water in the heat storage tank 11 cannot be kept warm only by the high temperature water in the heat storage tank 11 in the winter and the like.
It becomes economically possible to keep the bath water at the desired temperature at all times.

Solenoid valve for jet 23, air filter 2
4 is connected to the jet nozzle 21 via an air tube 25, and the jet solenoid valve 23 is turned on by operating the jet key of the operation panel 5 so that air can be ejected from the jet nozzle 21. The jet nozzle 21 has a small inner diameter so that air is mixed therein. A pressure sensor 12 is provided in parallel with the circulation pump 9 so that a drop in the level of the bath water can be detected.

When hot water is supplied from the mixing valve 17 through the outlet pipe 4 and the jet nozzle 21, the control device 6 intermittently operates the circulation pump 9 so that the hot water directly contacts the human body. To prevent burns or discomfort.

This operation will be described with reference to FIG. First x
= 0 (step S1), bath water temperature detection sensor 20
The temperature of the bath water is detected by (step S2), and when it is lower than the set temperature (step S3), the heating valve 16 is controlled to open the water outlet on the side of the heat storage tank 11 to mix the hot water from the heat storage tank 11. Supply to valve 17 (step S
4). Then, the circulation pump 9 is turned on for 2 seconds, and then 2
It is turned off for a second (step S5), and this operation is repeated 5 times (steps S6 and S7). During this time, hot water is intermittently supplied to the bathtub 2 from the mixing valve 17. After repeating 5 times, the heat storage tank 11 side of the heating valve 16 is closed (step S8), the circulation pump 9 is operated for 10 seconds to make the temperature of the bath water uniform (step S9), and the process returns to step S1. The above operation is repeated until the bath water temperature reaches the set temperature.

According to the embodiment described above, it is possible to maintain the temperature of the bath water at a set temperature at all times, and since hot water is intermittently supplied to the bath, a large amount of water is supplied to the user. The hot water does not hit directly, and it is possible to prevent the risk of burns and discomfort.

[0014]

As described above, according to the bath water purifying apparatus of the present invention, by supplying hot water from the means for storing,
Since rapid heating is possible and the hot water is intermittently supplied, it can be used comfortably and there is no danger of burns.

[Brief description of drawings]

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

FIG. 2 is a flowchart showing an operation according to the embodiment of the present invention.

[Explanation of symbols]

1: Main body, 2: Bathtub, 3: Water inlet pipe, 4: Water outlet pipe, 5: Operation panel, 6: Control device, 7: Sterilization lamp, 8: Prefilter, 9: Circulation pump, 10: Filter medium tank, 11 :
Heat storage tank, 12: pressure sensor, 13: upper temperature sensor, 1
4: Leftover hot water sensor, 15: Lower temperature sensor, 16: Heating valve, 17: Mixing valve, 18: Heat storage tank heater, 19:
Safety valve, 20: bath water temperature detection sensor, 21: jet nozzle, 23: jet solenoid valve, 24: air filter, 25: air tube, 26: auxiliary heater.

Claims (2)

[Claims] 1. A bath water purifying apparatus for circulating and purifying bath water between a bath and a cleaning mechanism, comprising means for introducing the bath water, heating and storing it, and means for storing the same. And a means for intermittently supplying hot water of a predetermined temperature to the bathtub, and a bath water cleaning device. 2. A means for detecting the temperature of the bath water is further provided, and the means for supplying the bath water has a predetermined temperature when the temperature of the bath water is below a predetermined value. Until
The bath water purifying apparatus according to claim 1, wherein hot water having a predetermined temperature is intermittently supplied to the bath from the means for storing.