JP2000220172A - Bathtub water reuse equipment - Google Patents

Abstract

(57) [Summary] [Problem] To supply bathtub water to a flush water tank when bath water in the flush water tank is used for flushing a toilet bowl, and to recirculate a part of the bathtub water to a water storage tank so as to return the bathtub water. Is stirred to suspend the precipitated pollutants and discharge them together with the bath water. When bath water in a flush water tank is used for flushing a toilet, a sensor detects a decrease in water pressure in a supply pipe, drives a water supply pump, and switches an electromagnetic switching valve. Therefore, the bathtub water stored in the water storage tank 2 is pumped up and supplied to the washing water tank z, and a part of the bathtub water in the supply pipe 6 is returned to the water storage tank 2 through the branch pipe 13 and the ejection nozzle 141 to store the water. Stir the bath water in tank 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathtub water recycling apparatus for reusing bathtub water as toilet flushing water.

[0002]

2. Description of the Related Art Conventionally, bathtub water discharged from a bathtub is guided to a water storage tank and stored therein, and when the toilet is used, the bathtub water stored in the water storage tank is pumped up by a water supply pump and supplied to a flush water tank. (See, for example, JP-A-9-3979).

[0003] That is, in the bathtub water recycling apparatus 1, as shown in FIG.
Is embedded in the water storage tank 2 and a water pipe 3 having one end connected to a drain port of a bathtub y installed in a bathroom Y of a house X.
Are connected to each other. A water supply pump 4 is attached to the water storage tank 2, and the suction port of the water supply pump 4 is connected to the other end of a suction pipe 5 having one end opened near the bottom of the water storage tank 2. The discharge port of the water supply pump 4 is connected to the other end of the supply pipe 6 having one end connected to the washing water tank z installed in the toilet Z of the house X.

[0004] The water pipe 3 is provided with a medicine tube 71.
Is provided, and the medicine cylinder 71 contains a chlorine medicine.

One end of the water storage tank 2 is provided with a sewer 8.
Is connected to the other end of the overflow pipe 9 connected to the other end, and is connected to one end of a supply pipe 10 for supplying tap water.

[0006] Further, the other end of the flush drain 11 whose one end is connected to the sewer 8 is connected to the toilet z1.

The toilet z1 is provided with a hot water washer z2, and tap water is supplied to the hot water washer z2.

[0008] Therefore, the bathtub water in the bathtub y is stored in the water storage tank 2 from the drain port through the water pipe 3. At this time, the bath water is sterilized, decolorized, and deodorized by dissolving in contact with the chlorine agent in the sterilization tank 7. When the washing water stored in the washing water tank z of the toilet Z is used for washing the toilet z1, the water supply pump 4 is driven,
The bathtub water stored in the water storage tank 2 is pumped up and supplied to the washing water tank z. Further, when the bath water in the water storage tank 2 is supplied to the washing water tank z and the washing water tank z becomes full, the constant water level valve (not shown) having the ball tap of the washing water tank z closes, and the water supply pump 4 is driven. To stop.

As described above, the bathtub water recycling apparatus 1 sterilizes bathtub water from the bathtub y and reuses it as washing water for the toilet z1.

The washing water after washing the toilet z1 is as follows:
The water is drained to the sewer 8 through the washing drain pipe 11.

When the number of uses of the toilet Z is small and the bathtub water in the water storage tank 2 is full, the overflow pipe 9
Through the sewer 8. On the other hand, when the number of times of use of the toilet Z is large and the bath water in the water storage tank 2 falls below the set water level, tap water is supplied to the water storage tank 2 via the supply pipe 10.

[0012]

By the way, in the bathtub water recycling apparatus 1 described above, human fat contained in the bathtub water,
Pollutants such as fatty acid metal salts and nitrogen-containing compounds gradually accumulate and settle in the water storage tank 2, and these pollutants and chlorine chemicals combine to lose residual chlorine, which causes decay and bad smell of bathtub water. There was a problem.

The present invention has been made in view of such a problem, and only when the bath water of the washing water tank is used for washing the toilet, the water supply pump is driven to supply the bath water to the washing water tank. Supplying a bathtub water recycling device that can recirculate some bathtub water to a water storage tank, stir the bathtub water, float suspended pollutants, and discharge it together with the bathtub water. is there.

[0014]

According to the first aspect of the present invention, bathtub water discharged from a bathtub is stored in a water storage tank through a sterilization tank, and the bathtub water stored in the water storage tank when the toilet is used. In a bath tub water reuse device that pumps water from a water supply pump to supply it to a flush water tank and reuses it as toilet flush water, a branch in which an electromagnetic switching valve is disposed in a supply pipe connecting the water supply pump and the flush water tank. One end of the pipe is connected, an ejection nozzle is connected to the other end of the branch pipe near the bottom wall of the water storage tank, and a sensor for detecting the water pressure of the supply pipe is provided. When used for flushing the toilet, the sensor detects a drop in water pressure in the supply pipe, drives the water supply pump, and switches the electromagnetic switching valve to flush the bathtub water stored in the water storage tank. And a part of the bath water in the supply pipe is returned to the water storage tank via the branch pipe and the jet nozzle to stir the bath water in the water storage tank, while the bath water supplied to the washing water tank is filled with water. In addition, the system detects a rise in the water pressure of the supply pipe due to the closing of the constant water level valve, stops driving the water supply pump, and returns the electromagnetic switching valve to the neutral position.

According to the present invention, when the bathtub water in the flush water tank is used for flushing the toilet, the constant water level valve of the flush water tank is opened and the water pressure in the supply pipe decreases. The water pressure drop is detected by a sensor, the water supply pump is driven, and the electromagnetic switching valve is switched. Therefore, the bath water stored in the water storage tank is pumped up and supplied to the cleaning water tank, and a part of the bath water in the supply pipe is returned to the water storage tank through the branch pipe and the jet nozzle to stir the bath water in the water storage tank. can do. On the other hand, when the tub water is supplied to the rinsing water tank and the rinsing water tank becomes full, the constant water level valve is closed.
Bathtub water in the water storage tank pumped by the water supply pump is returned to the storage tank via the supply pipe, the branch pipe, and the injection nozzle. At this time, since the diameter of the injection nozzle is smaller than the discharge amount of the water supply pump, the water pressure of the branch pipe and the supply pipe increases. Then, when the water pressure of the supply pipe rises above a certain level, the sensor detects the water pressure, stops driving the water supply pump, and returns the electromagnetic switching valve to the neutral position. Therefore, since the water pressure in the supply pipe and the branch pipe closed by the constant water level valve, the water supply pump, and the electromagnetic switching valve of the washing water tank is sealed as it is, the water supply pump continues to stop, and the electromagnetic switching valve remains in the neutral position. Held in position.

As a result, the water supply pump can be driven to supply the bath water to the flush water tank only when the bath water in the flush water tank is used for flushing the toilet, so that unnecessary power consumption is suppressed. can do. that time,
Since some bath water is returned to the water storage tank via the injection nozzle and the bath water in the water storage tank is agitated, it is possible to suspend the precipitated pollutant and pump it up together with the bath water with a water supply pump and discharge it. Residual chlorine can be ensured to prevent bathtub water from spoiling and generating odor.

In this case, the sensor for detecting the water pressure of the supply pipe can be directly installed in the supply pipe, in addition to the sensor built in the discharge port side of the water supply pump.

Further, the invention according to claim 2 is characterized in that bath water discharged from the bath is stored in a water storage tank via a sterilization tank, and the bath water stored in the water storage tank is pumped up by a water supply pump when the toilet is used. In a bathtub water recycling apparatus for supplying water to a tank and reusing it as toilet flushing water, one end of a branch pipe is connected to a supply pipe connecting the water supply pump and the flushing water tank, and the vicinity of a bottom wall of the water storage tank. A jet nozzle is connected to the other end of the branch pipe, and a sensor for detecting the fullness of the washing water tank is provided. When the bath water in the washing water tank is used for washing the toilet, the bath of the washing water tank is used. Detects water depletion with a sensor and drives the water supply pump to supply the bath water stored in the water storage tank to the washing water tank, and also to partly discharge the bath water from the supply pipe into the branch pipe and squirt. The method is characterized in that the water is returned to the water storage tank via a spill to agitate the bath water in the water storage tank, while the bath water supplied to the washing water tank is detected by a sensor to stop driving the water supply pump. It is.

According to the present invention, when bath water in the washing water tank is used for flushing the toilet, the water level in the washing water tank drops. Start the pump. Therefore, the bathtub water stored in the water storage tank is supplied to the washing water tank, and a part of the bathtub water in the supply pipe is returned to the water storage tank through the branch pipe and the jet nozzle to stir the bathtub water in the water storage tank. Can be. On the other hand, when bath water is supplied to the wash water tank and the wash water tank becomes full, a sensor detects the water level and stops driving the water supply pump.

As a result, the bath pump water can be driven to supply the bath water to the flush water tank only when the bath water in the flush water tank is used for flushing the toilet, thereby suppressing unnecessary power consumption. can do. that time,
Since some bath water is returned to the water storage tank via the injection nozzle and the bath water in the water storage tank is agitated, it is possible to suspend the precipitated pollutant and pump it up together with the bath water with a water supply pump and discharge it. Residual chlorine can be ensured to prevent bathtub water from spoiling and generating odor.

According to the first or second aspect of the present invention, a stirring pipe provided with jet nozzles at both ends is provided along the vicinity of the bottom wall at the longitudinally intermediate portion of the water storage tank and is connected to the other end of the branch pipe. When the injection nozzles of the injection nozzle are directed in opposite directions, the bathtub water of the water storage tank is emptied by the branch pipe, the stirring pipe, and the bathtub water supplied through the injection nozzle. Circulation and stirring can be carried out in each of the first and second parts.

[0022]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a bath water reuse apparatus 1A of the present invention.
Is described. This bathtub water recycling apparatus 1A is, similarly to the bathtub water recycling apparatus 1 described above, a water storage tank 2 buried in the site of the house X, and a bathtub y installed in the water storage tank 2 and the bathroom Y of the house X. , A water supply pipe 4 attached to the water storage tank 2, and a suction pipe connected between the suction port of the water supply pump 4 and the vicinity of the bottom wall of the water storage tank 2. 5 and outlet of water supply pump 4 and house X
The supply pipe 6 connected to the washing water tank z installed in the toilet Z, the sterilization tank 7 provided in the water guide pipe 3 and provided with the medicine tube 71, and the overflow connected to the water storage tank 2 In addition to a pipe 9 and a supply pipe 10, and a washing drain pipe 11 connected to the toilet z, the electromagnetic switching valve 12 is branched from a supply pipe 6 connecting the water supply pump 4 and the washing water tank z. A branch pipe 13 disposed, a stirring pipe 14 connected to the other end of the branch pipe 13 near the bottom wall of the water storage tank 2 and provided with injection nozzles 141 at both ends, and a built-in pipe on the discharge port side of the water supply pump 4. 15 for detecting the water pressure of the supply pipe 6
And is composed of

The stirring pipe 14 is disposed along the vicinity of the bottom wall at the middle part in the longitudinal direction of the water storage tank 2 and has a length substantially equivalent to a distance between a pair of opposed peripheral walls. The injection nozzles 141 provided at both ends are oriented so that their injection ports are opposite to each other (see FIG. 2).
For this reason, as will be described later, when bath water is supplied through the branch pipe 13, the stirring pipe 14, and the injection nozzle 141 thereof, the bath water stored in the water storage tank 2 is transferred to the storage tank 2.
Can be circulated and stirred in the left half and the right half in the longitudinal direction, respectively. Here, injection nozzle 1
The orifice 41 is formed in the orifice, and the water supply pump 4
It is set so that a constant pressure difference occurs before and after the bathtub water flow rate supplied from the bathtub. In particular,
When the diameter of the injection nozzle 141 is 2 mm, the discharge amount of the water supply pump 4 is 13 liters per minute when the total head is 12 m, and when the water pressure of the supply pipe 6 reaches 1.3 kgf per unit square centimeter, a sensor described later is used. The 15 contacts 151 (see FIG. 3) are set to operate.

As shown in FIG. 3, the water supply pump 4 is driven by an electric motor 16, and a power supply circuit of the electric motor 16 is provided with a contact point 151 of a sensor 15 and an electromagnetic switching valve 12. The solenoid 121 is connected. Therefore, when the water pressure in the supply pipe 6 decreases, the sensor 15 detects the decrease in the water pressure, and closes the contact point 151, thereby energizing and driving the electric motor 16 and driving the water supply pump 4 at the same time. The solenoid 121 is switched by energizing the solenoid 121.

Next, the operation of the bath tub water recycling apparatus 1A thus configured will be described. When the washing water stored in the washing water tank z is used for washing the toilet z1, the water pressure of the supply pipe 6 decreases.
5 detects it and switches its contact 151 to the closed position.
Therefore, the electric motor 16 is energized to drive the water supply pump 4, and the solenoid 121 is energized to switch the electromagnetic switching valve 12. Therefore, the water supply pump 4
The bathtub water stored in the water storage tank 2 is pumped up and supplied to the supply pipe 6.
Is supplied to the washing water tank z. At this time, a part of the bathtub water in the supply pipe 6 is returned to the water storage tank 2 through the branch pipe 13, the stirring pipe 14, and the injection nozzle 141, and therefore, is stored in the water storage tank 2 by the returned bathtub water. Bath water is circulated and agitated in the left half and the right half, respectively, in the longitudinal direction. Since the polluted substances deposited and deposited in the water storage tank 2 float by the stirring of the bath water in the water storage tank 2, the polluted substances floating with the bath water are pumped up by the water supply pump 4 and supplied to the washing water tank z. can do.

On the other hand, the bath water in the water storage tank 2 is supplied to the washing water tank z, and when the washing water tank z becomes full, the constant water level valve (not shown) of the washing water tank z closes. For this reason,
The bathtub water pumped up by the water supply pump 4 is supplied to the supply pipe 6, the branch pipe 13, the stirring pipe 14, and the injection nozzle 14 thereof.
1 is returned to the water storage tank 2 through the water supply tank 1.
A pressure difference occurs before and after 1, and the water pressure in the branch pipe 13 and the supply pipe 6 increases. When the water pressure in the supply pipe 6 rises and reaches the set pressure of the sensor 15, the contact 151 of the sensor 15
To release. As a result, the energization of the electric motor 16 is interrupted, and the drive of the water supply pump 4 is stopped. At the same time, the energization of the solenoid 121 is interrupted, the electromagnetic switching valve 12 is returned to the neutral position, and the branch pipe 13 is shut off. . For this reason,
The supply pipe 6 and the branch pipe 13 closed by the constant water level valve, the electromagnetic switching valve 12, and the water supply pump 4 of the washing water tank z.
Is filled with bath water at the set water pressure. Therefore, the contact point 151 of the sensor 15 is kept open, the water supply pump continues to stop, and the electromagnetic switching valve is kept at the neutral position.

On the other hand, when the flush water stored in the flush water tank z of the toilet Z is used for flushing the toilet z1, the constant water level valve of the flush water tank z is opened and the sealed state of the supply pipe 6 is opened. Therefore, the water pressure in the supply pipe 6 decreases, and the sensor 15 detects the decrease in the water pressure. The water supply pump 4 is driven again via the electric motor 16, and the electromagnetic switching valve 12 is switched. Water is supplied to the washing water tank z via the supply pipe 6 and a part of the bath water in the supply pipe 6 is returned to the water storage tank 2.

As described above, since the water supply pump 4 is driven only when the bath water of the washing water tank z is used for washing the toilet z1, unnecessary power consumption can be suppressed. Further, since a part of the bath water in the supply pipe 6 is returned to the water storage tank 2 to stir the bath water in the water storage tank 2, the polluted substances deposited and deposited in the water storage tank 2 can be floated and discharged.

In the above-described embodiment, the sensor 15 for detecting the water pressure of the supply pipe 6 is illustrated as being built in the discharge port side of the water supply pump 4, but the sensor 15 is arranged in the supply pipe 6. You may.

Further, a sensor for detecting the water level of the washing water tank z can be provided to control the water supply pump 4. In this case, as a sensor for detecting the water level of the washing water tank z, in addition to directly detecting the water level, a change in the water level may be detected by a change in the pressure, or the opening and closing of the constant water level valve may be detected. If such a sensor for detecting the water level is used, there is no need to fill the bathtub water in the supply pipe 6, and the electromagnetic switching valve 12 becomes unnecessary.

[0032]

As described above, according to the present invention, the water supply pump is driven to supply the bath water to the flush water tank only when the bath water in the flush water tank is used for flushing the toilet. Since some bath water is returned to the water storage tank via the injection nozzle and the bath water in the water storage tank is agitated, it is possible to suspend the precipitated pollutant and pump it up together with the bath water with a water supply pump and discharge it. Residual chlorine can be ensured to prevent bath water rot and odor. Also, unnecessary power consumption can be suppressed.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a bath tub water reuse device of the present invention.

FIG. 2 is a schematic plan view showing a water storage tank of the bathtub recycling apparatus of FIG.

FIG. 3 is an electric circuit diagram showing a relationship between an electric motor for driving a water supply pump, a sensor, and an electromagnetic switching valve of the bathtub water reuse device of FIG. 1;

FIG. 4 is a schematic view showing a conventional bathtub water recycling apparatus.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1A Bath tub water reuse device 2 Water storage tank 3 Water supply pipe 4 Water supply pump 6 Supply pipe 7 Sterilization tank 12 Electromagnetic switching valve 121 Solenoid 13 Branch pipe 14 Stirring pipe 141 Injection nozzle 15 Sensor 151 Contact 16 Electric motor X House Y Bathroom y Bath tub Z Toilet z Wash water tank z1 Toilet bowl

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Takashi Kawato 1-88, Oyodonaka, Kita-ku, Osaka-shi Inside Sekisui House Co., Ltd. (72) Satoshi Morimoto 1-1-1, Oyodonaka, Kita-ku, Osaka-shi No. 88 Sekisui House Co., Ltd. F-term (reference) 2D060 AA03 AB03

Claims (3)

[Claims] 1. Bath water discharged from a bath tub is stored in a water storage tank via a sterilization tank, and when the toilet is used, the bath tub water stored in the water storage tank is pumped up by a water supply pump and supplied to a flush water tank. In the bath tub water recycling apparatus to be reused as described above, one end of a branch pipe provided with an electromagnetic switching valve is connected to a supply pipe connecting the feed pump and the washing water tank, and in the vicinity of a bottom wall of the water storage tank. A jet nozzle is connected to the other end of the branch pipe, and a sensor for detecting the water pressure of the supply pipe is provided, so that when the bath water in the flush water tank is used for flushing the toilet, the water pressure of the supply pipe is reduced. The water supply pump is driven by the detection by the sensor, and the electromagnetic switching valve is switched to supply the bath water stored in the water storage tank to the washing water tank, and a part of the bath water in the supply pipe is branched. Then, the bath water in the water storage tank is stirred by flowing back to the water storage tank through the jet nozzle, and the water pressure in the supply pipe is increased by closing the constant water level valve when the bath water supplied to the washing water tank is full. A bathtub water reuse device, which detects the operation of the water supply pump, stops the operation of the water supply pump, and returns the electromagnetic switching valve to the neutral position. 2. The bathtub water discharged from the bathtub is stored in a water storage tank via a sterilization tank, and when the toilet is used, the bathtub water stored in the water storage tank is pumped up by a water supply pump and supplied to the flush water tank. In the bath tub water recycling apparatus, one end of a branch pipe is connected to a supply pipe connecting the water supply pump and the washing water tank, and a jet nozzle is provided at the other end of the branch pipe near the bottom wall of the water storage tank. Is connected, and a sensor for detecting the fullness of the washing water tank is provided, and when the bath water in the washing water tank is used for washing the toilet bowl, the sensor detects the depletion of the bath water in the washing water tank. The water supply pump is driven to supply the bath water stored in the water storage tank to the washing water tank, and a part of the bath water in the supply pipe is returned to the water storage tank via the branch pipe and the jet nozzle. The bath tub water reuse device is further characterized in that the bath tub water in the water storage tank is agitated, while the bath tub water reuse device is characterized in that the bath tub water supplied to the washing water tank is detected by a sensor and the driving of the water supply pump is stopped. 3. An agitating tube having ejection nozzles provided at both ends thereof near the bottom wall at a longitudinally intermediate portion of the water storage tank is connected to the other end of the branch pipe. 2. The device according to claim 1, wherein the device is oriented in the opposite direction.
Alternatively, the bathtub water recycling apparatus according to claim 2.