JPH10263328A - Circulating purification device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a circulating purification device enabling to maintain purifying performance for a long period without clogging the purifying part with rubbish. SOLUTION: A circulation warming bath device is constituted to circulate bath water stored in a bathtub 10 with a circulation pump 12, collect the rubbish, etc., incorporated in the bath water with a preflight 23 and subsequently purify the bath water. In this case, when a filter detection switch 28 detects unloading of the prefilter 23, a stop valve 39 is closed and the circulation of the bath water is stopped.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circulation purifying apparatus for circulating a liquid stored in a storage tank by a circulation pump, collecting dust and the like mixed in the liquid by a filter, and purifying the liquid. About.

[0002]

2. Description of the Related Art Pooled water, for example, bath water stored in a bathtub, is inevitably mixed with organic matter such as dirt and hair, dust, dust, sand, etc., and is polluted with time due to turbidity. And smell,
In addition, slimming or the like occurs, and the comfort during bathing is impaired. If the stored water in the bathtub is replaced with new water every time it is used, such a problem will not occur, but the cost of using tap water and the heating cost when boiling it in hot water will increase, and the time and effort for water replacement will increase. There were drawbacks such as being unable to enjoy bathing at any time.

As a solution to such a drawback, a circulating purifying device for a bath generally called a 24-hour bath is known. Such a device is particularly intended for home use, and incorporates a purification cartridge in which useful microorganisms are grown on a collective substrate such as crushed stone, gravel, or other granular ceramics, and supplies the bath water. The cleaning water is forcibly circulated through the purification cartridge to purify the bath water.

In such a circulating purification apparatus, a circulating pump incorporated in the apparatus is driven to suck bath water in a bathtub, and a sponge or the like disposed in a communication passage between the circulating purification apparatus and the bathtub is used. Through a filter that collects and filters large trash such as hair and lint mixed in the bath water, then decomposes organic matter such as dirt and body fat in the bath water with microorganisms,
It is configured to purify the amount of the organic substance to an allowable value or less. The purified bath water is finally heated or kept at a predetermined water temperature by a heater and returned to the bathtub.

[0005]

However, in the above-mentioned circulating purification apparatus, when the filter for collecting large dust such as hair and lint mixed in the bath water is washed, the apparatus is not suitable. If the filter is removed without stopping the operation, or if the user forgets to attach the filter and operates the apparatus, large trash mixed in the bath water may enter the inside of the apparatus.
Therefore, there is a problem that the purification cartridge for purifying the bath water is clogged with large dust, and it becomes impossible to maintain the purification ability of the purification cartridge for a long period of time.

The present invention has been made to solve the above-mentioned problems, and provides a circulating purification apparatus capable of maintaining a purification ability for a long period of time without clogging a purification section with dust. It is intended to be.

[0007]

In order to achieve this object, a circulation purifying apparatus according to a first aspect of the present invention circulates a liquid stored in a storage tank by a circulation pump and mixes the liquid with the liquid. After collecting the garbage etc.
For the purpose of purifying the liquid, in particular, a filter detecting means for detecting whether or not the filter is mounted, and the liquid when the filter detecting means detects non-mounting of the filter. Stopping means for stopping the circulation of water. Therefore, the filter detecting means detects whether or not the filter is mounted, and the stopping means stops the circulation of the liquid when the filter detecting means detects that the filter is not mounted.

[0008] The circulating purification apparatus according to claim 2 is
The stop means is constituted by an opening / closing valve arranged in the circulation path of the liquid, and a first control means for controlling to close the opening / closing valve when the filter detecting means detects the non-attachment of the filter. Have been. Therefore, the first control means controls to close the open / close valve when the filter detection means detects that the filter is not attached.

Further, the circulating purification device according to claim 3 is
The stopping means is constituted by a second control means for controlling the driving of the circulation pump to be stopped when the filter detecting means detects the non-attachment of the filter. Therefore, the second control means controls to stop driving of the circulation pump when the filter detection means detects that the filter is not attached.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a circulation purifying apparatus according to an embodiment of the present invention.

FIG. 1 is a schematic configuration diagram of an embodiment in which the present invention is applied to a circulating hot water bath.

The circulating warm water bath is configured to purify bath water stored in the bathtub 10 and contaminated with time by circulating the bathwater outside the bathtub 10 by the circulation pump 12. Note that the circulating warm bath corresponds to the circulating purification device of the present invention.

Specifically, the circulating warm water bath includes a water supply unit 13 which is detachably mounted on a bathtub 10 as a liquid storage tank, a discharge unit 15, and a water absorption hose 16 and a drainage hose 18 provided in each unit. And an apparatus main body 19 connected via the.

The apparatus main body 19 is installed, for example, at the edge of the bathtub 10 or at an appropriate position outdoors.

Water supply unit 13 and discharge unit 15
Are fixed to the side wall of the bathtub 10 by suction cups (not shown). A suction port 21 is provided below the water supply unit 13, and is configured to suck bath water in the bathtub 10 through a pre-filter 23 as a collecting means. The pre-filter 23 is made of a polyurethane sponge, is detachable from the water supply unit 13, and has a large amount of dust and hair mixed in bath water.
Other foreign substances can be collected and removed. Bath water purified by the apparatus main body 19 is configured to return to the bathtub 10 from the discharge port 26 of the discharge unit 15.

Further, inside the water supply unit 13, there is provided a filter detection switch 28 as filter detection means for detecting whether or not the pre-filter 23 is mounted.

The apparatus body 19 includes a circulating pump 12 for pumping and circulating bath water from the bathtub 10, a purifying section 34 for purifying organic substances and other pollutants contained in the bath water by adsorption, decomposition, filtration, and the like; 35 for heating and keeping the water warm, and a flow sensor 3 for detecting the flow rate of the circulating bath water
6 and a temperature sensor 38 for detecting the temperature of the circulating bath water
An opening / closing valve 39 provided in the water absorbing hose 16,
And a flow path for communicating these components.

Among these components, the purifying section 34 for purifying the circulating bath water has a microorganism purifying mechanism 40 for adsorbing and decomposing organic substances contained in the bath water by microorganisms to purify the microorganism.
And physical filtering means 42 for collecting and filtering organic pollutants and inorganic pollutants contained in the bath water passed through the microorganism purification mechanism 40.

Next, the configuration of the control system of the circulating warm water bath of the present embodiment will be described with reference to the block diagram shown in FIG.

The control unit 50 includes a ROM 51 storing a program for controlling the entire circulating warm water bath, a control panel 52, a RAM 53 for storing data inputted by the control panel 52, a temperature sensor 38, Flow sensor 36 and filter detection switch 2
8, a pump drive circuit 55 for driving / stopping the circulation pump 12, a heater drive circuit 56 for driving / stopping the heater 35, and a valve drive circuit 57 for driving the opening / closing valve 39. It is configured to be connected to a CPU 60 for controlling components.
Here, the CPU 60, the ROM 51, the RAM 53, and the valve drive circuit 57 constitute a first control unit of the present invention.

Next, the operation of the circulating warm bath constructed as described above will be described.

In order to purify the bath water and heat and keep it warm,
The power of the circulating bath is turned on, and the temperature for keeping the bath water warm is set from the control panel 52. Then, CPU6
0 determines whether or not the pre-filter 23 is installed in the water supply unit 13 based on the signal from the filter detection switch 28. When it is determined that the pre-filter 23 is not mounted in the water supply unit 13, the control panel 52 displays that the pre-filter 23 is not mounted, and notifies the user.

The pre-filter 23 is installed in the water supply unit 13.
Is determined to be attached, the CPU 60
Outputs signals to the pump drive circuit 55, the heater drive circuit 56, and the valve drive circuit 57 in order to drive the circulation pump 12 and the heater 35 and open the opening / closing valve 39.

The circulation pump 12 is driven, and the open / close valve 39 is opened.
Is opened, a part of the bath water in the bathtub 10 is sucked through the suction port 21, and large dust, hair, and other foreign matters mixed in the bath water are collected and removed by the pre-filter 23, and the water is absorbed. It is sent to the apparatus main body 19 through the hose 16.

The bath water sent to the apparatus main body 18 is purified by a microorganism purifying mechanism 40 in which organic substances contained in the bath water are adsorbed and decomposed by microorganisms. The bath water that has passed through the microorganism purification mechanism 40 is collected and filtered by the physical filtration means 42 for organic pollutants and inorganic pollutants contained in the bath water, and then heated and maintained by the heater 35. The heated and maintained bath water is sent to the discharge unit 15 through the drain hose 18 and returned into the bathtub 10 from the discharge port 26.

The temperature of the bath water circulated by the circulation pump 12 is measured by a temperature sensor 38.
It is determined whether or not the water temperature measured by the temperature sensor 38 is equal to or higher than the heat retention set temperature input from the control panel 52. When determining that the measured temperature has become equal to or higher than the set temperature, the CPU 60 outputs a signal to the heater drive circuit 56 to stop the heater 35 so that the temperature of the bath water becomes the set temperature. Also, when the temperature of the bath water drops and the measured temperature falls below the set temperature,
The CPU 60 outputs a signal to the heater drive circuit 56 to drive the heater 35 again. By repeating this, the bath water is kept at a substantially constant temperature.

Further, while the bath water is circulated by the circulating pump 12 and the bath water is purified and kept warm, the user filters the pre-filter 23 to clean the pre-filter 23 and supplies the water to the water supply unit 13. From the filter detection switch 28, the CPU 60
A signal is output to the valve drive circuit 57 so as to close the opening / closing valve 39. When the opening / closing valve 39 is closed, circulation of the bath water is stopped.

Therefore, dust and the like mixed in the bath water in the bathtub 10 are not taken into the apparatus.

When the cleaning of the pre-filter 23 is completed and the pre-filter 23 is mounted in the water supply unit 13 again, the CPU 60 sends a signal from the filter detection switch 28 to the valve driving circuit 57 to open the opening / closing valve 39. After outputting a signal and collecting and removing large dust, hair and other foreign matters mixed in the bath water by the pre-filter 23, purification of the bath water and heat keeping are performed again inside the apparatus main body 19.

As described above, according to the circulating warm water bath of the present embodiment, the filter detection switch 28 detects whether or not the pre-filter 23 is mounted in the water supply unit 13, and the pre-filter 23 is mounted. If not, close the on-off valve 39 to stop the circulation of bath water,
When the pre-filter 23 is installed, the pre-filter 23 collects and removes the large dust and the like mixed in the bath water, so that the purification unit 34 is not clogged with the large dust and the like. The purifying ability of the purifying unit 34 can be maintained for a long time.

The present invention is not limited to the embodiment described in detail above, and various changes can be made without departing from the gist of the present invention.

For example, in the above-described embodiment, the opening / closing valve 39 is closed when the pre-filter 23 is not mounted. However, the operation of the circulation pump 12 is stopped to circulate the bath water. May be stopped. In this case, the CPU 60 and the ROM 5
1, the RAM 53, and the pump drive circuit 55 constitute the second control means of the present invention.

[0033]

As is apparent from the above description, the circulation purifying apparatus according to the first aspect of the present invention has a filter detecting means for detecting whether or not the filter is mounted, and the filter detecting means. Has stop means for stopping the circulation of the liquid when the non-attachment of the filter is detected. Therefore, the filter detecting means reliably detects the non-mounting of the filter, and the stopping means stops the circulation of the liquid, so that the liquid is taken into the apparatus without the filter mounted. In addition, it is possible to prevent the purification section in the apparatus from being clogged with large dust mixed in the liquid, and to maintain the purification ability for a long period of time.

Further, the circulating purification device according to claim 2 is
The stop means is constituted by an opening / closing valve arranged in the circulation path of the liquid, and a first control means for controlling to close the opening / closing valve when the filter detecting means detects the non-attachment of the filter. Have been. Therefore, the first control means controls to close the open / close valve when the filter detection means detects that the filter is not attached, so that the liquid circulation can be surely stopped.

Further, the circulating purification device according to claim 3 is
The stopping means is constituted by a second control means for controlling the driving of the circulation pump to be stopped when the filter detecting means detects the non-attachment of the filter. Therefore, the second control means controls the drive of the circulation pump to be stopped when the filter detection means detects the non-attachment of the filter, so that the liquid circulation can be reliably stopped. it can.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a circulating warm water bath according to an embodiment of the present invention.

FIG. 2 is a block diagram showing an electric circuit configuration of the circulating warm water bath.

[Explanation of symbols]

 Reference Signs List 10 bathtub 12 circulation pump 23 prefilter 28 filter detection switch 39 on-off valve 51 ROM 52 control panel 53 RAM 55 pump drive circuit 57 valve drive circuit 60 CPU

Claims (3)

[Claims] 1. A circulating purification device configured to circulate a liquid stored in a storage tank with a circulation pump, collect dust and the like mixed in the liquid with a filter, and then purify the liquid. Filter detecting means for detecting whether or not the filter is mounted, and stopping means for stopping the circulation of the liquid when the filter detecting means detects that the filter is not mounted. Circulation purification device. 2. The first stop means, comprising: an opening / closing valve arranged in a circulation path of the liquid; and a control means for closing the opening / closing valve when the filter detecting means detects that the filter is not mounted. The circulation purification device according to claim 1, wherein the circulation purification device is constituted by control means. 3. The method according to claim 2, wherein the stopping unit is configured by a second control unit that controls to stop driving the circulation pump when the filter detecting unit detects that the filter is not attached. The circulation purification apparatus according to claim 1, wherein