JPH087310Y2 - Hot water circulating bathtub device with primary filter - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water circulating bath apparatus for keeping hot water in a clear state by filtering it.

[0002]

2. Description of the Related Art A circulating hot water device for a bath, which is connected to a bath and circulates hot water for 24 hours, has been developed. This circulating hot water apparatus detects the hot water temperature with a sensor, and constantly controls the hot water to an appropriate temperature of 39 to 46 ° C by a heater provided in the hot water passage. Further, by circulating hot water, clarified it retains to remove plaque and bacteria and the like contained in the hot water.

In this type of bath, it is not necessary to heat the water by replacing it with fresh water every day. Therefore, it is possible to simultaneously satisfy both the characteristics of water saving and energy saving. Furthermore, it has the extremely convenient feature that you can take a bath 24 hours a day at any time. This type of bath is equipped with a primary filter and a filtering member in order to continuously keep warm water filtered for 24 hours and keep it clear. The filtering member crushes natural stone to a specified size,
Alternatively, an inorganic porous material obtained by crushing natural stone and sintering it into porous particles is used.

The primary filter mainly filters hair, organic soft material and the like contained in hot water. The inorganic porous filtering member is not limited to simply physically filtering and removing the foreign matter contained in the warm water. The filtering member is a collection of remarkably large particles compared to the foreign matter to be filtered,
It has the function of removing extraneous foreign matter contained in warm water and keeping it clear. This is because the filter member keeps warm water clear by the action of microorganisms.

When an inorganic porous filter member is arranged in a circulation path of hot water controlled to an appropriate temperature, a comfortable environment for breeding microorganisms is created, and aerobic microorganisms parasitize. Microorganisms decompose by eating ammonia and protein contained in warm water as food. Therefore, the sweat and dirt in the warm water are effectively removed by the microorganisms.

When the warm water is clarified in this state, invisible fine stains can be removed by using a large grain lumber that is incomparable to the foreign matter to be filtered. Therefore, hot water has a feature that it can be kept in a state of extremely high transparency.

However, in order for the inorganic porous filter member to clarify the warm water in this state, it is necessary to actively hold the action of microorganisms. For this reason, it is important to increase the circulating amount of warm water to supply sufficient oxygen to aerobic microorganisms, and to replenish sweat, dirt, etc., which feed the microorganisms. When the circulating volume of hot water is reduced, the supply of oxygen and food is reduced, and the ability of the microorganism to clarify warm water is reduced. Therefore, it is important how the circulating hot water device that keeps the hot water clear allows the microorganisms to work actively.

The inventor of the present invention has developed a device for solving this drawback (Japanese Utility Model Laid-Open No. 62-187263). The device described in this publication is provided with a primary filter at the inlet of the bath. The primary filter removes hair and organic soft matter contained in inhaled warm water. Therefore, there is a feature that it is possible to prevent the inorganic porous filter member incorporated in the main body from being clogged.

[0009]

However, it is difficult to increase the size of the primary filter in the device having this structure. It connects the primary filter to the inlet, so
This is because if it is increased, it will be an obstacle in the bathtub. A small capacity primary filter clogs and reduces the circulation of hot water. To solve this drawback, the present inventor has developed a device for connecting a large capacity primary filter to the outside of the bathtub. This device has the feature that the capacity of the primary filter can be increased to significantly extend the cleaning period.

However, when this device is actually used,
Despite the large capacity of the primary filter, the filtration capacity decreased in a single period. The primary filter was disassembled and the inside was observed to investigate the cause. As a result, it was revealed that the entire wood cannot be effectively used for filtration. That is, foreign materials such as hair and organic flexible material were concentrated on the lower part of the material. The inventor of the present invention has not been able to determine the cause of foreign matter being concentrated and adhering to the lower part of the lobe material even though a large capacity of the lobe material is stored in the casing. In order to clarify this, a transparent casing was prototyped and the filtered state of hot water was closely observed. As a result, it was found that the water surface level of the casing gradually decreased and the actual filtration area of the filter material decreased with the time of use.

By the way, in almost all cases, this type of device has an inlet for hot water at the bottom of the bath. For this reason, it was impossible to imagine that air would be inhaled from the inlet. In fact, when the inhaled warm water was visually observed, no air-entrained condition was observed. in spite of,
The water level of the primary filter gradually decreased with time of use.

Initially, the inventor could not find out the cause. Therefore, we conducted experiments in various states to explore the cause. As a result, it was clarified that the water level of the primary filter decreases when hot water containing innumerable bubbles is jetted into the bath. The fine air bubbles injected into the warm water did not all float on the surface of the water, but partly floated in the warm water, and this was sucked into the primary filter together with the warm water. The amount of fine bubbles contained in warm water is extremely small. Therefore, the water level of the primary filter slowly drops,
This made the investigation of the cause extremely difficult. When the injection of air bubbles was stopped, the water level of the primary filter did not drop. However, when the injection of air bubbles was stopped, the amount of molten oxygen in the warm water decreased, and the action of aerobic microorganisms inhabiting the filtration member decreased. To activate the clarification action of microorganisms in warm water, it is necessary to increase the amount of molten oxygen in warm water. Therefore, it is important to inject bubbles into warm water to increase the amount of molten oxygen.

The present invention was developed with the object of solving this drawback. An important object of the present invention is to provide a hot water circulating bath apparatus including a primary filter capable of injecting air bubbles into hot water to maintain the primary filter in an excellent filtering performance for a long period of time.

Another important object of the present invention is to provide a hot water circulation type bathtub device provided with a primary filter in which the circulation pump does not idle even if air is sucked in through a suction port or piping.

[0015]

In order to achieve the above-mentioned object, a hot-water circulating bath apparatus having a primary filter of the present invention has the following construction. In the hot water circulation type bathtub device including the primary filter of the present invention, the primary filter 1 is connected to the suction side and is connected to the bathtub through the primary filter 1. Further, the hot water circulation bath device of the present invention has a circulation pump 2 for circulating hot water, a filtering member 3 for clarifying the hot water, a heating member 4 for heating the hot water to a constant temperature, and a bubble for the bath. And a bubble ejecting member 5 for ejecting.

The primary filter 1 is closed by a watertight structure that can be opened and closed, and a casing 6 having an air hole in its upper part is opened.
And a filter material 7 provided in the casing 6 for filtering hot water
And the water level inside the casing 6 to detect the air vent
The water level sensor 8 is provided with a controller for exhausting air in the pump 9, and the air vent pump 9 is connected to the air hole of the casing 6 and controlled by the controller of the water level sensor 8. When air collects in the casing 6 and the water surface drops, the water surface sensor 8 detects this and controls
The roller section operates the air venting pump 9 to exhaust the air in the casing 6.

Further, in a hot water circulating bath apparatus having another structure of the present invention, the primary filter 1 is closed in a watertight structure that can be opened and closed, and a casing 6 having an air hole at the upper portion, and a casing 6 inside the casing 6. An air vent valve 1 connected to an air hole of a casing 6 provided with a filter material 7 for filtering hot water.
0 of the primary filter 1 connected to the air vent valve 10
When a certain amount of air accumulates in the casing 6, the valve is opened
And an air vent pump 9 for exhausting air.

A predetermined amount in the casing 6 of the primary filter 1
When the air is accumulated, the air vent valve 10 is opened, and the air vent pump 9 is configured to exhaust the air accumulated in the casing 6 via the air vent valve 10 .

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to the drawings. However, the embodiments shown below are examples of a hot water circulating bathtub apparatus for embodying the technical idea of the present invention, and the hot water circulating bathtub apparatus of the present invention, The structure and arrangement are not specified in the structure below. The hot water circulating bath apparatus of the present invention can be modified in various ways within the scope of the utility model registration claim.

Further, in this specification, in order to make it easy to understand the scope of claims for utility model registration, the numbers corresponding to the members shown in the embodiments are referred to as "Scope of Claims for Utility Model" and "Solution of Problems." It is added to the members shown in the column of "means for performing". However, the members shown in the scope of claims for utility model registration are by no means limited to the members of the embodiment.

In the hot water circulation type bath device shown in FIG. 1, the suction side is connected to the bath via a primary filter 1.
The hot water circulation type bath device continuously circulates the hot water in the bath, holds the hot water at a set temperature in the range of, for example, 39 ° C to 46 ° C, and removes stains in the hot water to sterilize.

The primary filter 1 filters the hot water sucked into the hot water circulating bath apparatus to remove foreign matters such as hair and organic soft bodies contained in the hot water. The primary filter 1 is
It is shown in FIG. The primary filter 1 includes a casing 6, a blank 7, an air vent valve 10, and a water surface sensor 8
And an air vent pump 9.

The casing 6 includes a bottom plate 11 and a cylindrical body 12.
And an upper case 13 and an outer case 14. The bottom plate 11 has a hot water outlet 15 at the center,
The cylindrical body 12 is watertightly fixed to the upper surface. The cylindrical body 12 is machined into a cylindrical shape as a whole, and a flange is fixed to the upper end. The upper flange is watertightly screwed to the outer periphery of the upper lid 13. An O-ring (not shown) is sandwiched between the brim of the cylindrical body 12 and the upper lid 13 to prevent water leakage.
An inlet 16 of hot water is opened in the upper part of the cylinder 12. The inlet 16 is connected to the inlet of the bath and the outlet 15
Is connected to the suction side of the hot water circulating bath device.

The upper lid 13 has a peacock 17 fixed to the center thereof, and an air hole opened through the peacock 17 has an air vent valve 1
0s are connected. Further, a mounting table 18 is provided above the upper lid 13.
The air vent pump 9 and the controller of the water surface sensor 8 are fixed to the mounting table 18.

The air exhaust port of the air vent valve 10 has a hose 19
Is connected to the suction side of the air vent pump 9. The air vent valve 10 includes all valves that allow air to pass therethrough but does not allow water to pass therethrough, for example, a float is incorporated therein, and when the water is introduced, the float floats to block the air exhaust port and the air is introduced. When the float descends, a valve can be used that opens the air outlet.

The water surface sensor 8 detects the water surface level of the casing 6 and controls the operation of the air vent pump 9. When the air collects in the casing 6 and the water surface level falls below a certain level, the water surface sensor 8 operates the air vent pump 9. When the air inside the casing 6 is exhausted and the water level rises, the operation of the air vent pump 9 is stopped.

In the primary filter 1 of this structure, even if either the air vent valve 10 or the water level sensor 8 fails, the air vent pump 9 does not suck in water. Therefore, an extremely reliable device can be realized. However, the device of the present invention can connect the air vent pump to the casing through the air vent valve without using the water level sensor, and the operation of the air vent pump can be controlled by the water level sensor. It is also possible to connect the air vent pump to the air holes of the casing without using the air vent valve.

Devices without a water level sensor operate the air vent pump continuously. The continuously operated air vent pump always tries to suck air from the air vent valve. Therefore, when air is collected in the casing, the air vent valve is opened and the air is exhausted. When the air in the casing is exhausted and water is sucked into the air vent valve, the air vent valve closes. In this state, the air vent pump does not exhaust air even if it is operated.

Further, in the device having no air vent valve, the operation of the air vent pump can be controlled by the water level sensor to exhaust the air from the casing. When air collects and the water level in the casing drops, the water level sensor activates the air vent pump,
When the water level of the casing rises, the water level sensor shuts off the air vent pump.

In the casing 6, a cylindrical material 7 having a pipe connected to the lower end is detachably arranged. A filter paper, an open-cell synthetic resin foam, a non-woven fabric, or the like is used as the second material 7. The water surface sensor 8 includes electrodes for detecting the water surface and a controller unit. The primary filter 1 having this structure is connected to the bathtub and the hot water circulating bathtub device through a circulation pipe.

The hot water circulation type bath device continuously circulates the hot water in the bath, holds the hot water at a set temperature in the range of, for example, 39 ° C. to 46 ° C., removes dirt in the hot water and sterilizes it. The hot water circulation bath device includes a circulation pump 2, a filtering member 3, and a heater that is a heating member 4. The circulation pump 2 draws in hot water from the bath through the primary filter 1, passes through the filter member 3 and the heater, and then returns to the bath. For the filter material 3 of the filter member 3, natural stone crushed into particles or natural stone sintered into porous particles is used. The discharge side of the hot water circulation bath device is connected to the bath via the bubble jetting member 5. The bubble jetting member sucks air into the hot water and jets the hot water mixed with bubbles into the bath.

As shown in FIG. 1, in the hot water circulation type bath apparatus constructed as described above, the circulation pump 2 draws in the hot water in the bath and the primary filter 1 filters the hair and large organic soft bodies. Then, it is sent to the filtering member 3,
The sterilized and filtered warm water is returned to the bath through the heater. Although not shown, the heater is controlled by a temperature sensor to control the temperature of the hot water to the set temperature.

[0033]

The hot water circulation type bathtub device of the present invention can inject bubbles into the bathtub to maintain the excellent filtering ability of the primary filter for a long period of time. The reason is that fine air bubbles floating in warm water and sucked into the primary filter are exhausted to an air vent pump connected to the casing. Therefore, hydronic bathtub apparatus of this invention is to increase the amount of oxygen which is melted in hot water, can actively act of microorganisms that inhabit the filtration member, thereby clarifying filtration the hot water I cotton long term There are features.

Further, in the hot water circulating bath apparatus of the present invention, the air vent pump is connected to the air hole of the casing through the air vent valve, or the operation of the air vent pump is controlled by the water level sensor. Therefore, the air vent pump does not suck water by mistake, the air vent pump operates reliably, and the air accumulated in the casing can be exhausted. Furthermore, since the primary filter connected to the suction side separates and sucks out the sucked air, even if air is sucked in from the suction port or the middle of the pipe, it is separated here and the hot water circulation type bathtub apparatus is separated. It also has the feature that the circulation pump can be prevented from idling.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view of a hot water circulation type bathtub apparatus including a primary filter showing an embodiment of the present invention.

FIG. 2 is a sectional view showing an example of a primary filter.

[Explanation of symbols]

1 ... Primary filter 2 ... Circulation pump
3 ... Filtration member 4 ... Heating member 5 ... Bubble injection member
6 ... Casing 7 ... Material 8 ... Water level sensor
9 ... Air venting pump 10 ... Air venting valve 11 ... Bottom plate
12 ... Cylindrical body 13 ... Upper lid 14 ... Outer case
15 ... Outflow port 16 ... Inflow port 17 ... Peacock
18 ... Stand 19 ... Hose

Claims (2)

[Scope of utility model registration request] 1. A suction side is connected to a bath via a primary filter (1), and further a circulation pump (2) for circulating hot water and a filtering member (3) for filtering hot water in a clear manner.
In a hot water circulation bathtub device comprising a heating member (4) for heating hot water to a constant temperature and a bubble jetting member (5) for jetting bubbles to a bathtub, a watertight seal in which a primary filter (1) can be opened and closed. A casing (6) that is closed to the structure and has an air hole at the top, and a filter material (7) that is provided in the casing to filter hot water;
Air vent pump that detects the water level in the casing
A water level sensor (8) having a controller for exhausting air at (9) and an air vent pump (9) connected to the air hole of the casing (6) and controlled by the controller of the water level sensor (8). Has a primary filter
When air collects in the casing (6) of (1) and the water surface drops, the water surface sensor (8) detects this and controls it.
A hot water circulating bathtub device comprising a primary filter, characterized in that the roller portion operates an air venting pump (9) to exhaust air in the casing. 2. The suction side is connected to a bath via a primary filter (1), and further, a circulation pump (2) for circulating hot water and a filter member (3) for filtering hot water in a clear manner.
In a hot water circulation bathtub device comprising: a heating member (4) for heating hot water to a constant temperature; and a bubble jetting member (5) for jetting bubbles to a bathtub, a primary filter (1) can be opened and closed. A casing (6) which is closed in a watertight structure and has an air hole at the top,
Ro material (7) installed in the casing to filter hot water
When, it is connected to the air hole of the casing (6), primary Fi
A certain amount of air accumulates in the casing (6) of the Luther (1)
An air vent valve (10) that is opened to exhaust air and an air vent pump (9) that is connected to the air vent valve (10), and is located in the casing (6) of the primary filter (1).
When a fixed amount of air is accumulated, the air vent valve (10) is opened, and the air vent pump (9) is configured to exhaust the air accumulated in the casing (6) through the air vent valve (10). A hot water circulating bathtub device equipped with a characteristic primary filter.