JPH05169098A - Device for circulating and clarifying water of bathtub - Google Patents

Abstract

PURPOSE:To eliminate trouble by providing a by-pass in the circulation water way of a main pump and providing a self-suction type subpump therein, driving the subpump at a time for replacing water of a bathtub and thereby restoring the main pump in a normal actuation state and also detecting the water flow in the circulation waterway and driving the main pump. CONSTITUTION:A by-pass 6 is provided in the circulation waterway 2 of a non-self-suction type main pump 3. A self-suction type subpump 7 is provided in the by-pass 6. Water of a bathtub is introduced into the main pump 3 by driving the subpump 7 at a time for replacing water of the bathtub. The air of the inside of the main pump 3 is discharged and the effect of priming water is obtained. Further the main pump 3 is restored in a normal actuation state. A device for circulating and clarifying water of the bathtub is constituted so that water of the bathtub is detected by a water flow detecting means and the main pump 3 is driven via a controlling circuit 10 and the subpump 7 is stopped by a controlling circuit 11 and thereby normal operation for circulating and clarifying water of the bathtub is started. Therefore start-up or restart-up of circulation and clarification is instantaneously enabled only by sending a small amount of water of the bathtub.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bath water circulation purifying apparatus capable of purifying bath water in an ordinary household in a suitable state at all times.

[0002]

2. Description of the Related Art In a known circulation purification apparatus for purifying bath water and the like by utilizing microbial activity, a circulation purification system for bath water comprising a circulation water channel, a circulation pump, a filtration tank, and a biological treatment tank is constructed. The contaminated bath water was circulated with a circulation pump to remove dirt, suspended solids, and other SS components in the filtration tank, and in the biological treatment tank, the organic pollutant components were decomposed and removed by the action of microorganisms for purification. The means to return the bath water to the bath is adopted.

[0003]

However, in order to uniformly purify contaminated bath water and the like to the highest degree possible, sufficient agitation of the bath water in the bath and purification in the biological treatment tank are required. Improve the degree of contact between the microbial membrane that has settled on the carrier and the bath water, and conditions such as microbial aerobic retention in the biological treatment tank,
In addition, the amount of circulation of bath water, such as the allocation of bath water equivalent to the internal volume of the filtration tank and biological treatment tank, both increase the amount of circulation of bath water, and in terms of equipment, it becomes necessary to install a non-self-priming high-performance circulation pump. Therefore, there have been problems such as an increase in running cost burden, an idle operation of the circulation pump, and a defective circulation of bath water when the bath water is replaced or restarted.

The present invention relates to a circulating water purification system for bathtub water, and provides an effective circulating water purification system for bathtub water by solving the problems of the prior art as described above.

[0005]

In order to achieve the above-mentioned object, in the bath water circulation purifying apparatus of the present invention, bath water comprising a circulating water channel, a non-self-priming main pump, a filtration tank, and a biological treatment tank is used. In the circulation purification system, a main pump for circulating the bath water is arranged on the upstream side of the filtration tank of the circulation water channel, and a bypass water channel is provided on the upstream side or the downstream side of the main pump, By attaching a self-priming sub-pump to the bypass water channel and driving the sub-pump when the bath water is replaced, or when the circulation purification operation is restarted, etc. The main pump is driven by removing the air to restore the normal operating state and detecting the water flow of the bath water in the circulating water channel by driving the sub-pump. It is obtained by eliminating the trouble caused by dry running of Nponpu.

[0006]

As described above, in the bath water circulation purifying apparatus of the present invention, the bypass water passage provided upstream or downstream of the main pump, which is a non-self-priming pump, is used in advance when restarting the operation. Since the self-priming sub-pump is driven to introduce priming water into the main pump, proper driving of the pump is guaranteed, and the non-self-priming main pump is circulated by detecting the water flow in the circulating water channel by driving the sub-pump. It is possible to prevent the failure and stop of the cleaning operation due to the failure.

[0007]

FIG. 1 is a schematic view showing an embodiment of a bath water circulation purifying apparatus of the present invention, in which a bypass water passage is provided on the downstream side of a non-self-priming main pump.
Explaining the figure, the contaminated bath water in the bath 1
By driving the main pump 3 which is involved in the bath water circulation of the circulating water channel 2, it is fed into the filtration tank 4 via the circulating water channel 2 to remove SS components such as dust and suspended matter, and then fed into the biological treatment tank 5. hand,
This is an example of a circulation system in which organic pollutants contained in bathtub water are decomposed and removed by microbial activity and then returned to the bathtub 1 via the circulation channel 2, and the main path of the bathwater to be purified is indicated by a solid arrow. It is shown. The bath water referred to in the present invention also includes make-up water or the like newly supplied to the bath.

In the above-described bath water circulation purifying apparatus of the present invention comprising a circulation system, a bypass water channel 6 may be provided in the circulation water channel 2 on the downstream side of the main pump 3, and a self-priming sub-pump 7 may be attached to the bypass water channel 6. The first feature of the present invention is that the sub-pump 7 is driven to introduce the bath water into the main pump 3 when the bath water is replaced or when the circulation purification operation is started. Pump 3
The air in the inside is removed to provide a priming effect, and the main pump 3 is restored to a normal operating state. The path of bath water in the bypass water channel 6 is indicated by a dashed arrow.

Next, the second feature of the present invention is that the bath water reaching the filtration tank 4 is detected by the water flow detecting means 8 attached to the circulating water passage 2 by driving the sub-pump 7. , The detection of the water flow is linked to the control means 9, and the driving of the main pump 3 is started via the control circuit 10 of the main pump, while the control circuit 11 of the sub-pump stops the driving of the sub-pump 7 for normal operation. Since the bath water circulation purification operation is started, the circulation purification can be immediately started or restarted by sending a small amount of bath water.

The circulating water channel 2 of the main path corresponding to the bypass water channel 6 is driven by the sub-pump 7,
A check valve 12 is provided to prevent the bath water from flowing back to the upstream side of the main pump 3 or to prevent the bath water from short-circuiting in the bypass water passage 6. In addition, as a mode other than the attachment of the check valve 12, as shown in FIG.
A three-way motorized valve 14 controlled by the control means 9 and the valve control circuit 13 is additionally provided, and when the sub-pump 7 is driven, the three-way motorized valve 14 is switched to feed the bath water from the circulating water channel 2 to the bypass water channel 6. A guaranteed structure can also be used.

In another embodiment of the present invention, as shown in FIG. 3, when the bypass water channel 6 is provided upstream of the main pump 3 in the circulating water channel 2, for example, a solenoid valve 15 controlled by a control circuit 13 is provided. Is attached to the circulating water passage 2 of the main passage of the portion corresponding to the bypass water passage 6, so that when the sub pump 7 is driven, the electromagnetic valve 15 is closed, so that the bath water can be introduced into the bypass water passage 6. it can.

[0012]

INDUSTRIAL APPLICABILITY As described above, the bath water circulation purifying apparatus of the present invention has the effect of priming a non-self-priming main pump that is based on the drive of a self-priming sub-pump attached to a bypass channel when bath water is replaced. Defective bathtub water circulation when restarting operation is avoided, start-up is prompt, and water flow detection in the circulating water channel prevents defective circulation of the non-self-priming main pump and use of non-self-priming pump This enables efficient purification operation. Furthermore, because of the priming effect of the sub-pump, there are no restrictions on the installation conditions of the main pump, which increases the degree of freedom in the design and installation of the circulation purification device.

[Brief description of drawings]

FIG. 1 is a schematic view showing an embodiment of a bath water circulation purifying apparatus of the present invention.

FIG. 2 shows an example of a bypass channel according to the present invention,
It is a partial schematic diagram.

FIG. 3 is a partial schematic view showing another embodiment of the bypass channel according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bathtub 2 Circulation water channel 3 Main pump 4 Filtration tank 5 Biological treatment tank 6 Bypass water channel 7 Sub-pump 8 Water flow detection means 9 Control means 10 Main pump control circuit 11 Sub-pump control circuit 12 Check valve 13 Valve control circuit 14 Three-way electric valve 15 Electromagnetic valve

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location C02F 3/06 6647-4D

Claims (1)

[Claims] 1. A circulating water purifying apparatus comprising a circulating water channel, a non-self-priming main pump, a filtration tank, and a biological treatment tank, wherein a main pump is provided upstream of the filtering tank in the circulating water channel, A bypass water channel and a self-priming sub-pump are attached to the upstream side or the downstream side of the main pump, and the main pump is driven by detecting the water flow of the bath water in the circulating water channel driven by the sub-pump. A circulating water purification device for bath water.