JPH08215518A - Circulating heat retention filter for bath water - Google Patents

Abstract

(57) [Summary] [Purpose] An object of the present invention is to provide a circulating heat retention filtration device for bath water that does not kill microorganisms that inhabit the filter medium even when the operation is stopped. In a circulating bath water keeping filtration apparatus A of a bath water, the pump 20 circulates the bath water, and a filtering unit 30 arranged in the bath water circulation path by the pump 20 to filter the bath water. A storage container 42 for storing a filter medium 45 in which useful microorganisms inhabit is provided in 30, and a temperature sensor 60 for detecting the water temperature of the bath water inside the storage container 42 is attached with a heat retention heater 50 for heating and keeping the filter medium in close contact. The heater 50 is attached according to the temperature of the bath water in the container detected by the temperature sensor 60.
A control means 70 for supplying power to the device is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circulating heat insulation filtration device for bath water.

[0002]

2. Description of the Related Art The purification of bath water stored in a bath so that it can be used repeatedly is not only a significant saving of bath water, but also replacement of bath water and cleaning of the bath due to stains on the bath water. It is also effective in reducing the work such as. Therefore, for this purpose, the bath water is sucked in using a pump, filtered by a filter, purified by a water purifier, and then returned to the bath again. A circulating warm water filtration device for bathtub water has been developed.

This kind of bath water circulating heat retention filtration device is characterized in that the bath water is continuously filtered and kept clear, and the bath water can be heated and kept at an appropriate temperature for 24 hours a day continuously. In this device, a circulation pump is installed outside the bathtub, and the circulation pump is connected to the bathtub via a circulation hose.
A filter and a water purifier are connected in series to the circulation hose. The water purifier is filled with a porous body such as zeolite, pumice stone, diatomaceous earth, and allophane, and this porous body has a water purifying action for clarifying bath water. It is not only the physical filtration of bath water that the porous body cleanly filters the bath water, but the myriad of bacteria that inhabit the porous body decompose and sterilize the organic substances and bacteria contained in the bath water. This is because

As such a device, for example, the actual fairness 2
There is a device disclosed in JP-A-28365. The structure of this device is shown in FIG. In the figure, reference numeral 1 is a bathtub, and 2
Is a circulating heat insulation filter for bath water. This bath water circulation warming / filtering device 2 includes a container 3 and a detachable case 4, a circulation pipe 5,
6 are connected. A circulation pump 7 for forcibly circulating bath water is provided below the container 3, and a circulation passage 8 extending in the up-down direction in the container 3 is connected to the circulation pump 7. Further, the container 3 is provided with filters 9, 10 and a warm water chamber 11. The filter 9 is made of coarse non-woven fibers, and the filter 10 contains a porous granular filter medium made of mineral stone. A heater 13 for heating bath water is provided in the warm water chamber 11. On the other hand, the detachable case 4 detachably attached to the bathtub 1 is provided with a water inlet 17 and a water outlet 18 for respectively sucking and discharging the bath water in the bathtub 1. Circulation pipes 5 and 6 are connected to the water inlet 17 and the water outlet 18, respectively.

Purification of bath water by the circulating water temperature retaining / filtering device 2 will be described. First, when the circulation pump 7 is driven, the bath water is sucked from the water inlet 17 and flows into the circulation pump 7 through the circulation pipe 5. The bath water is pressurized by the circulation pump 7 and discharged, and the flow passage 8
Ascends through the inside, and spouts vigorously to the upper part of the container 3. The bath water flows into the filter 10 after the suspended matter is collected by the filter 9. Filter medium 12 housed in the filter 10
Is always exposed to bath water, so it has a temperature environment suitable for the reproduction of microorganisms (bacteria), and the parasitic microorganisms contained in the bath water contained ammonia (sweat) and protein (dust) produced by the human body. ) Etc. to decompose organic substances and bacteria,
Sterilize. Then, it is appropriately heated in the warm water chamber 11, discharged through the water outlet 18 through the circulation pipe 6, and returned to the bath 1. In this way, the bath water is purified.

[0006]

By the way, the circulating water temperature retaining filtration apparatus 2 for bath water usually operates continuously to keep the bath water clear, and at the same time, heat and heat the bath water. Is usually held at night or in the morning, and bathing is often not done during the day. therefore,
It is common to shut down during the day to save electricity.

However, when the operation is stopped, the bath water does not circulate and the warm bath water does not flow through the filter 10, so the temperature inside the filter 10 decreases. Filter 10
When the internal temperature decreases, the temperature environment in which the microorganisms inhabiting the filter medium 12 are difficult to reproduce and most of them die. Then, even if the operation is restarted, there is a problem that the decomposition and bactericidal effects of organic substances cannot be expected until new microorganisms propagate on the filter medium 12.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a circulating heat-retaining filtration device for bath water with a filtration efficiency by not killing microorganisms inhabiting the filter medium. is there.

[0009]

In order to achieve the above-mentioned object, the circulating water temperature retention filtration apparatus for bath water of the present invention is provided with the following means. In a bath water circulation heat retention / filtering apparatus comprising a pump for circulating bath water and a filtering means arranged in the circulation path of the bath water by the pump to filter the bath water, a filtering material in which useful microorganisms inhabit the filtering means. A storage container is provided, and a warming heater is attached to the storage container in a close contact state. A temperature sensor that detects the temperature of the storage container and power supply to the warming heater according to the temperature detected by this temperature sensor And a control means for performing.

[0010]

When the bath water is circulated by the pump, the temperature inside the storage container is almost equal to the temperature of the circulating bath water.
It is in a temperature environment suitable for inhabiting useful microorganisms. At this time, if the pump is stopped to save power, the bath water will not circulate, and the bath water remaining in the storage container will gradually cool and the temperature will start to drop. According to the circulation warming / filtering apparatus for bath water of the present invention, the temperature in the storage container is constantly transmitted to the control means by the temperature sensor, and when the temperature falls below a predetermined value, the control means supplies power to the warming heater. , The inside of the storage container is kept in a temperature environment suitable for inhabiting useful microorganisms by heating and keeping the storage container warm. Then, when the pump is started, the control means stops the power supply to the heat retention heater. However, if the temperature of the bath water flowing into the storage container is lower than the predetermined temperature, the bath water is heated by the bath water heater and power is supplied to the heat retention heater even after starting until the temperature in the storage container rises. Continue. When the temperature inside the storage container rises to a predetermined value, the power supply is stopped. By operating the heat insulation heater as described above, the inside of the storage container can be maintained in a temperature environment suitable for inhabiting useful microorganisms regardless of the operating condition of the pump.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the circulating heat insulation filtration apparatus of bath water according to the present invention will be described with reference to FIG. As shown in FIG. 1, the circulating heat retention filtration apparatus A for bath water has a pump 20, a filtration unit 30, a heat retention heater 50, a temperature sensor 60, and a control unit 7.
0, and a power supply 80.

The pump 20 is operated by being supplied with power from a power source 80, for example, a household 100 volt power source, via a control means 70 such as a microcomputer, and circulates bath water. The pump 20 has a suction pipe 21 extending toward a bathtub (not shown) for sucking the bathwater, and a circulation pipe (circulation path) for sending the suctioned bathwater toward the filtering means 30.
22 is attached.

The filtering means 30 comprises a first container 32 to which the circulation pipe 22 is attached, and a second container (storage) whose bottoms are connected to each other by the first container 32 and the circulation pipe (circulation path) 23. Container 42).

The first container 32 has a cylindrical shape with a bottom, a lid 32a is screwed on the upper part, and a spool filter 31 for collecting suspended matter in the bath water is arranged inside.

Like the first container 32, the second container 42 has a cylindrical shape with a bottom, a lid 42a is screwed onto the upper part thereof, and is internally spaced apart from the inner surface of the second container 42. A container 43 is provided. The opening surface below the inner container 43 is closed by a porous plate 44. Inside the inner container 43,
A mesh bag 46 is provided to accommodate a filter medium 45 made of a porous material such as zeolite, pumice stone, diatomaceous earth, and allophane. The mesh bag 46 is placed on the porous plate 44.

A heat insulation heater 50 is attached to the outer surface of the lower portion of the second container 42 so as to surround the periphery of the second container 42. The heat-retaining heater 50 is provided with a heat transfer wire 51 on the inner surface thereof, and directly heats the second container 42 to heat and keep the bath water in the second container 42 heated. The heat retention heater 50 also operates by being supplied with power from the power supply 80 via the control means 70. Further, a temperature sensor 60 that detects the temperature inside the second container 42 is attached to the upper side surface of the second container 42. The temperature sensor 60 transmits the detected temperature inside the second container 42. To do.

At the bottom of the second container 42, a circulation pipe (circulation path) 24 for sending out the bath water flowing through the filter medium 45 is attached, and in the middle thereof is attached a bath water heater 25 for heating and keeping the bath water warm. Has been. Bath water heater 2
5 also operates by being supplied with power from the power supply 80 via the control means 70. The circulation pipe 24 extends toward a bathtub (not shown).

Next, the operation of the circulating heat insulation filtration apparatus A for bath water will be described. First, while the pump 20 and the bath water heater 25 are operating, bath water always flows into the second container 42, and the second container 42 is in a temperature environment suitable for the growth of microorganisms. . However, when the pump 20 and the bath water heater 25 are stopped, the bath water that has flowed into the device remains in the device as it is, and the temperature of the filter media 45 and 46 contained in the second container 42 decreases as time passes. Most of the microbes will die down.

Therefore, the temperature sensor 60 stops the pump 20 and the bath water heater 25, and then the second container 4
The temperature inside 2 is always detected and transmitted to the control means 70. Then, when the temperature in the second container 42 falls below a predetermined value, the control means 70 supplies electric power to the heat retention heater 50 to operate it, heats and heats the second container 42 and pumps the internal temperature environment. 20 and bath water heater 25 are kept the same as when operating.

The pump 20 and the bath water heater 2
5 is actuated again, and when the bath water flowing into the second container 42 reaches a predetermined temperature, the control means 70 causes the heat retention heater 50 to operate.
To stop the power supply to.

In the bath water circulation warming / filtering apparatus A described in this embodiment, a warming heater 50 is attached to the second container 42 containing the filter medium 45, and the pump 20 and the bath water heater 25 are provided. Even if the warm bath water does not flow into the second container 42 after being stopped, the heat retention heater 50 generates heat and the temperature environment inside the second container 42 is maintained by the pump 20 and the bath water heater 25. Keep it the same as time. Therefore, even if the pump 20 and the bath water heater 25 are stopped to save power, the microorganisms inhabiting the filter medium 45 contained in the second container 42 are not killed. Even when the operation of the pump 20 is restarted at any time, it is possible to keep the decomposition effect of organic substances by microorganisms and the bactericidal effect of bacteria unchanged from before the operation stop.

Here, the heat retaining heater 50 is used for the second container 4
The bath water in 2 is heated and kept warm. Since this bath water does not flow and remains in the second container 42, the pump 20 consumes the electric power consumed by the warming heater 50 for keeping warm. Compared with the sum of the generated electric power and the electric power consumed by the bath water heater 25 that heats and keeps the circulating bath water warm, it is obviously small.

The filtering means for collecting the suspended matter is not limited to the structure described in the above embodiment, but may have a completely different structure as long as it has the same performance.

[0024]

EFFECT OF THE INVENTION A heat retaining heater is attached in close contact with a container for storing a porous filter medium that constitutes a filtering means, and a temperature sensor for detecting the temperature inside the container is attached to this heat retaining heater.
Control means for supplying electric power to the warming heater according to the temperature detected by the temperature sensor is provided, and these keep the inside of the storage container at a constant temperature environment regardless of the operating condition of the circulating heat retaining / filtering device for bath water. . Therefore, even if the operation of the pump is stopped to save power, the microorganisms that live in the filter media inside the storage container will not be killed.Even if the operation of the pump is restarted next, the decomposition of organic substances by the microorganisms and the bactericidal effect of bacteria will not occur. Can be kept constant without changing from before the operation stop.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a circulating heat retention filtration apparatus of bath water according to the present invention.

FIG. 2 is a cross-sectional view showing an example of a conventional circulating heat retention filtration device for bath water.

[Explanation of symbols]

 20 Pump 30 Filtering Means 32 First Container 42 Second Container (Accommodating Container) 45 Filter Material 50 Heat Retaining Heater 60 Temperature Sensor 70 Control Means A Circulating Heat Retaining Filtration Device for Bath Water

Claims (1)

[Claims] 1. A bath water circulation heat retention / filtering apparatus comprising: a pump for circulating bath water; and a filtering means arranged in the bath water circulation path of the pump for filtering the bath water. A storage container for the filter medium in which useful microorganisms inhabit is provided, and a heat retention heater is attached to this storage container in close contact with the heat retention heater. Depending on the temperature sensor that detects the temperature of the storage container and the temperature detected by this temperature sensor. A circulating heat retention filtration device for bath water, comprising a control means for supplying power to the heat retention heater.