JP2003268810A - Reclaimed-water recycling device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reclaimed-water recycling device, in which the water- saving consciousness of a user is improved and workability is enhanced, because the user can confirm the same accurate usage of reclaimed water as the quantity of the reduction of city water and can set the quantity of water in a bathtub supplied to a water storage tank. <P>SOLUTION: The reclaimed-water recycling device has a water-storage quantity measuring means measuring the quantity of water stored in the water storage tank, a supply measuring means measuring a supply supplied with reclaimed water in the water storage tank and a city-water replenishing-quantity measuring means measuring the quantity of city water replenished into the water storage tank. The quantity of water obtained by subtracting the measured value of the city-water replenishing means from the measured value of the supply measuring means during a fixed period is computed, and the quantity of water obtained by subtracting the measured value of the city-water replenishing means from the measured value of the supply measuring means during the fixed period and the current measured value of the water-storage quantity measuring means are displayed to a display means. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention stores rainwater and bathtub water and effectively uses it as daily life water such as toilet flush water.
The present invention relates to an intermediate water reuse device for the purpose of saving water.

[0002]

2. Description of the Related Art Conventionally, bath water and rainwater are stored in a water tank,
Water is used for daily life by pumping water to a toilet bowl by gravity. For example, Japanese Patent Laid-Open No. 2000-234
No. 358 discloses a device for guiding bath water and rainwater to a water storage tank and pumping water to a toilet bowl or the like when necessary.

[0003]

However, the aforementioned Japanese Patent Laid-Open No. 20
According to the contents described in No. 00-234358, the means for measuring the supply amount of the inside water of the water tank supplied to the intermediate water utilization facility and the equipment, and the water tank is replenished by the tap water supply means when the water tank is below the lower limit value. There is no means for measuring the amount of tap water, and there is also no means for displaying the amount of tap water used. Therefore, the user does not know whether the tap water used is derived from bath water, rainwater, or supplemented tap water, and the tap water reduction amount obtained by introducing the tap water reuse device is equal to The amount of water used is unknown.

Further, since the amount of bath water to be sent to the water storage tank cannot be set, if the user wants to leave a part of the bath water in the bath, the user can visually check the remaining amount of the bath water when sending the bath water.
I had to operate the water recycling system.

The present invention has been made to solve the above-mentioned problems, and is a storage amount measuring means for measuring the storage amount of a water tank, and a supply amount for measuring the supply amount of the inside water or clean water of the storage tank. A measuring means and a tap water replenishment amount measuring means for measuring the amount of tap water replenished to the water tank are provided, and the stored water amount measuring means, the supply amount measuring means, and the value obtained from the tap water replenishing amount measuring means are accurate. A bathtub that calculates the appropriate amount of gray water supply and displays the amount of gray water supply on the display means so that the user can confirm the exact amount of gray water use that is the same as the reduction amount of tap water, and that the water is sent to the water tank. The amount of water can be set. Therefore, it is possible to provide a gray water recycling device that can improve the water saving awareness of the user and improve the operability of the gray water recycling device.

[0006]

[Means for Solving the Problems and Actions / Effects] The invention according to claim 1 made in order to solve the above problems, is a water tank for storing domestic wastewater including rainwater and bath water, and a water storage amount of the water tank. Is less than or equal to the lower limit, tap water replenishment means for replenishing tap water and tap water replenishment equipment equipped with tap water supply means for supplying the tap water It has a predetermined amount of stored water for measuring the amount of water, a supply amount measuring device for measuring the supply amount of the inside water of the water tank, and a tap water supply amount measuring device for measuring the amount of tap water supplied to the water tank. Calculate the amount of water by subtracting the measured value of the tap water supply means from the measured value of the supply amount measurement means during the period, subtract the measured value of the tap water supply means from the measured value of the supply amount measurement means during the predetermined period And the current measurement of the stored water amount measuring means. And displaying the value on the display means.

According to the present invention, even when the water level in the water tank is lowered and tap water is replenished to the water tank, the user can accurately use the medium water by subtracting the replenished tap water amount from the medium water amount used. You can check the quantity. Therefore, when the amount of use of medium water is small, it is possible to send the bath water to the water tank, or to send the domestic wastewater that was drained to the water tank even though it is originally reusable water. Can be effectively used.
Further, when the amount of water stored in the water storage tank is large, it is possible to further effectively use the water by carrying out car washing and water sprinkling using the medium water.

According to a second aspect of the present invention, the information displayed on the display means is the current measured value of the stored water amount measuring means,
The amount of water obtained by subtracting the measured value of the tap water supply unit from the measured value of the supply amount measuring unit in the predetermined period, and the predetermined period.

According to the present invention, the user can obtain the current stored water amount in the water storage tank, the accurate used amount of tap water obtained by subtracting the supplied tap water amount from the used tap water amount, and the predetermined amount for calculating the tap water use amount. You can see the time period, hours, days, months, or years. When the amount of use of medium water is small, by sending bathtub water to the water tank, or by sending domestic wastewater that had been drained to the water tank even though it was originally reusable water,
Effective use of water becomes possible. In addition, when there is a large amount of water in the water tank, car wash and water sprinkling can be performed by using medium water.
Further, effective use of water becomes possible.

According to a third aspect of the invention, the display means is
It is characterized in that a plurality of them are arranged in the operation part of the indoor water reuse device arranged indoors, or in the place where the device or equipment using the intermediate water is installed.

According to the present invention, since the operation unit for operating the water supply of the bath water to the water tank has the display means, the user confirms the amount of medium water used in the display unit and the water storage amount of the water tank, and then displays the water in the water tank. It is possible to easily determine whether or not there is a need for water supply in the bathtub. In addition, since there is a display at the location where each device and equipment that uses tap water is installed, the user can check the amount of tap water used and the amount of tap water stored in the water tank. Should individual water-use equipment and facilities be used to promote water-use,
You can judge whether or not. As a result, the convenience of the user is improved and the water can be effectively used.

According to a fourth aspect of the present invention, the display means is provided with an operation switch for setting the amount of bath water to be supplied to the water tank.

According to the present invention, the user can confirm the amount of water stored in the water storage tank and supply the required amount of bath water to the water storage tank.
As a result, the remaining bath water after the water supply can be used for cleaning the bathtub or the bathroom or for other purposes, so that the water can be effectively used.

According to a fifth aspect of the present invention, the display means is provided with an operation switch for opening and closing a valve which is means for supplying tap water to the water tank, thereby increasing the amount of water stored in the water tank. Is characterized by.

According to the present invention, the user can increase the amount of water stored in the water tank by replenishing the water stored in the water tank with the operation unit. Therefore, the water tank can be filled with water before the scheduled water cutoff.
It is possible to deal with water interruption. In addition, it will be possible to secure water in the event of a disaster.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described. Figure 1
In addition, the water supply / supply means 3 provided with the water supply means for supplying bath water or domestic wastewater to the water storage tank 1 and the supply means for supplying the waste water in the water storage tank 1 to the water supply utilization device or facility are provided. Example 1 of the utilization apparatus was shown. The water supply / supply means 3 is connected to a bathtub 5 serving as a reused water source and a house drainage tap 7 other than the bathtub such as a washbasin, a bathroom drainage tap, and a kitchen drainage tap. A rainwater branch pipe 9 for branching rainwater from the gutter is connected to the water tank 1, and the rainwater flows into the water tank from the roof through the gutter and the rainwater branch pipe 9. In addition, the water supply / supply means 3 is provided to the water tank 1 and the device 11 that uses the water in the water tank 1 such as a toilet bowl, a sprinkler 13, and a water-use facility 15 such as a disposer.
Is connected. Further, a water pipe 17 for supplying water to the water storage tank 1 is connected to the water storage tank 1 via the water supply / supply means 3. Although the water supply / supply means 3 is integrated in the first embodiment, the water supply function and the supply function may be separated from each other.

There is a method for measuring the amount of water stored in the water tank 1 to measure the amount of water stored in the water tank 1, and there is a method for measuring the amount of water stored from the pressure change due to the change in the water level in the water tank 1. Water supply / supply means 5 at the end of the connected pipe
There is a method of arranging in the water tank and a method of arranging in the water tank 1. Further, in the case of a sensor or an electrode for measuring the water level of the water storage tank 1 by light or a sound wave, it is arranged in the water storage tank 1. Example 1 of FIG.
In the former case where a pressure sensor is installed in the water supply / supply means 3, FIG. 2 shows an embodiment 2 in which a pressure sensor is installed in the water tank 1, and in FIG. 3 the latter measures the water level by light or sound waves. Example 3 is shown.

When a pressure sensor is installed in the water supply / supply means 3 of the embodiment shown in FIG. 1, the water tank 1 is connected by the pressure sensor which is the water storage amount measuring means 19 connected to the water tank by a pipe.
The change in water level can be measured as a change in pressure. As a result, the water level, which is the amount of water stored in the water tank 1, can be calculated, and the data of the water amount can be easily obtained from the water surface height and the shape of the water tank. That is, the amount of water stored in the water tank 1 when sending bath water or domestic wastewater to the water tank 1, the amount of water stored when rainwater flows into the water tank 1, and the devices and equipment that use the water in the water tank 1. It is possible to measure the amount of water stored when sending water to the tank, and the amount of water stored when supplying clean water to the water tank 1. Also, the embodiment of FIG.
Can measure the water storage of. In the case of the embodiment shown in FIG. 3, the distance between the sensor position of the water storage tank 1 and the water surface can be measured by a sensor arranged at a position higher than the full water position of the water storage tank 1 to measure the water level by light or sound waves. As a result, the water level, which is the amount of water stored in the water tank 1, can be calculated, and the data of the water amount can be easily obtained from the water surface height and the shape of the water tank. That is, the amount of water stored in the water tank 1 when sending bath water or domestic wastewater to the water tank 1, the amount of water stored when rainwater flows into the water tank 1, and the devices and equipment that use the water in the water tank 1. It is possible to measure the amount of water stored when sending water to the tank, and the amount of water stored when supplying clean water to the water tank 1.

The tap water replenishment amount measuring means 21 for measuring the amount of tap water replenished to the water tank 1 is provided by
When calculating from the change in the stored water amount, the stored water amount measuring means 19
Can be combined. Further, in the case of a flow sensor for directly measuring the amount of tap water passing through the water pipe 17, there is also a method of disposing it in the water supply / supply means 3. The flow rate sensor can measure the amount of tap water supplied to the water storage tank 1 by measuring the flow velocity. Example 4 of the latter is shown in FIG.

The supply amount measuring means 23 for measuring the supply amount of the inside water supplied to the water storage tank 1 can be used also by the water storage amount measuring means 19 when calculating from the change in the water storage amount of the water storage tank 1. Further, in the case of a flow rate sensor that directly measures the amount of intermediate water passing through the supply pipe 25, there is also a method of disposing it in the water supply / supply means 3. The flow sensor measures the flow velocity,
It is possible to measure the supply amount from the water storage tank 1. FIG. 4 shows the latter embodiment.

Further, when there are a plurality of devices and equipments that use the inside water of the water storage tank 1 and the individual amount of supplied inside water is displayed on the display means, a plurality of supply amount measuring means 2 are provided in the water supply / supply means 3.
3 can also be provided. Example 5 is shown in FIG.

FIG. 6 shows a detailed view of the water supply / supply means 3 of the first embodiment. Recycled raw water 29 such as bath water and domestic waste water, except rainwater, has a three-way valve 31, a pump 33, and a two-way valve 35.
Water is sent to the water storage tank 1 via the. The inside water of the water storage tank 1 is supplied to a device or facility 25 using the inside water such as a toilet bowl or a sprinkler via a three-way valve 31 and a pump 33. Further, when the water level in the water storage tank 1 reaches the lower limit value or when the user wants to supply tap water to the water storage tank 1, a tap water opening / closing valve 37 for supplying tap water is provided. Water supply / supply means 3
Is a control unit for controlling the operation of the gray water reuse device 3 such as sending the recycled raw water 29 to the water storage tank 1 and supplying the gray water from the water storage tank 1 to the device and the facility 25. 39 are provided. Further, in the control unit 39, based on the values obtained from the supply amount measuring means 23 and the tap water replenishing amount measuring means 21, the accurate recirculating water obtained by subtracting the tap water replenishing amount from the replenishing water for a predetermined period. It is also equipped with a calculation means capable of calculating the supply amount.

The control unit 39 includes a stored water amount measuring means 19, a tap water supply amount measuring means 21, a supply amount measuring means 23, a three-way valve 31, a pump 33, a two-way valve 35, a tap water opening / closing valve 37, and water supply / supply. It is electrically connected to the detection unit 43. In addition, the operation unit 41 of the recycled water recycling device can send and receive signals electrically or wirelessly.

The operation of supplying the tap water to the device or equipment 25 that uses tap water such as a toilet bowl or sprinkler is carried out by the three-way valve 31 based on the signal from the water feeding / feeding detector 43 for detecting the pressure and flow in the pipe. Direction, the pump 33 is turned ON / OFF. In addition, the operation of sending / stopping the reused raw water 29 such as bathtub water excluding rainwater and domestic wastewater to / from the water storage tank 1 is performed by the operation unit 4 of the intermediate water reuse device.
When the user operates 1, the direction of the three-way valve 31, the pump 33 is turned on / off, and the two-way valve is opened / closed.

FIG. 7 shows a schematic view of the operation unit 41. The operation unit 41 has a water supply switch 45 for supplying bath water to the water tank 1, a stop switch 47 for stopping, and a water supply / supply amount for setting the amount of bath water to be supplied and the amount of tap water to be supplied. A setting switch 49 and a supply switch 51 for increasing the amount of stored water by supplying tap water to the water tank 1 are also provided. Further, the operation section 41 is provided with a display section 53 for displaying an accurate amount of stored water in the water storage tank 1 and an accurate amount of supplied medium water obtained by subtracting tap water supply amount from the amount of supplied medium water for a predetermined period.

The amount of supply of gray water displayed on the display unit 53 is an integrated value within a predetermined period, and the start of integration is used by providing an integrated value from the start of starting the gray water recycling device and a reset function. It is possible to start from any start time set by the person, and 1 day, 1 week, 1 month, 2 depending on the reset function and timer.
It can be a month, etc.

When the bath water is sent to the water storage tank 1,
The user operates the replenishment amount setting switch 49 and the water supply switch 45, but by setting the water feeding / replenishment amount setting switch 49 to full water, if the water tank is full by the operation of only the water supply switch 45, it will be automatically It is also possible to stop at. If you want to send the bath water to the water tank 1 only for 50L, set the water / replenishment amount setting switch 49 to 50L,
By operating the water supply switch 45, the water supply of bath water is completed. When it is desired to stop the water supply of the bath water, the stop switch 47 can be operated to stop the water supply before the stored water amount reaches the set value.

The method of increasing the amount of water stored in the water tank 1 with tap water can be performed by operating the water supply / replenishment amount setting switch 49 and the replenishment switch 51. Any method of increasing the set amount is possible.

The operation of supplying bath water to the water storage tank 1 in the embodiment of FIGS. 6 and 7 will be described. The water supply of the bath water to the water storage tank 1 is started by operating the water supply switch 45 of the operation unit 41. First, the user sets the amount of water to be supplied and the amount of water to be supplied, thereby determining the amount of water to be fed in the bathtub. For example, when it is desired to fill the water tank 1 with water, the set value is filled with water, and when the water supply switch is operated, water is supplied until the water tank reaches full water or the bathtub becomes empty, and water supply is automatically stopped. The full storage of the water tank 1 can be detected by the water storage amount measuring means 19 and the water supply / supply detection unit 43 can detect whether or not the bath is empty. When the user wants to send the bath water to the 50 L water tank 1, the user sets the water supply amount and the replenishment amount to 50 L, and operates the water supply switch so that the water storage amount measuring means 19 sets the water storage amount of the water tank 1 to 50 L. Detects the increase and stops the water supply of bath water.

When the water storage amount in the water storage tank 1 reaches the lower limit value, it can be detected by the water storage amount measuring means 19, and therefore, clean water is automatically supplied to the water storage tank 1 until the lower limit value is reached. In order to calculate the accurate amount of clean water supply for a given period, the clean water supply amount when clean water is replenished is stored as an integrated value, and the amount of the clean water replenished from the water tank 1 to the device or facility that uses the clean water is calculated as an upper value. From the cumulative value of the water supply amount, calculate the accurate amount of medium water supply for the specified period,
It is displayed on the operation unit 41.

In FIG. 6, a tap water supply amount measuring means 21 such as a flow rate sensor and an intermediate water supply amount measuring means 23 are provided.
As described above, it is possible to calculate the tap water supply amount and the intermediate water supply amount only by the water storage amount measuring means 19.

The contents of the switches and the display unit of the operation unit of FIG. 7 are one embodiment, and the switch for supplying tap water and the display unit 53 are shown.
In addition to the supply of tap water, it is also possible to additionally display the amount of tap water supply and the amount of water and sewerage charges saved by using tap water.

Further, in the fifth embodiment of FIG. 5, since a plurality of supply amount measuring means 25 are provided in the water supply / supply means 3,
A display unit without an operating unit is installed at the location where multiple devices and equipment that use gray water are installed, and the amount of gray water supply used by each equipment and facility is displayed at the location where each equipment and facility is installed. It is also possible to do so. Further, it is also possible to display the individual supply amounts of a plurality of devices and equipment that use gray water side by side on the display unit 53 of the operation unit 41 of FIG. 7.

Although not described in the embodiment, it is desirable that the water tank 1 has a function of purifying and sterilizing domestic wastewater including rainwater and bath water by storing a purifying means to store the water. . Further, the purifying means may be provided separately from the water storage tank 1. Further, the purifying means can be integrated with the water supply / supply means 3.

Since domestic wastewater including rainwater and bath water contains a sedimentary component, a buoyant component, a dissolved component, and a bacterium, the purifying means removes the sedimented component and the suspended component. It is desirable to dispose a filtration section, an adsorption section for adsorbing and removing dissolved components, and a sterilizing component addition for sterilizing bacteria.

[Brief description of drawings]

FIG. 1 is a first embodiment of a recycled water recycling device according to the present invention.

FIG. 2 is a second embodiment of the recycled water recycling device according to the present invention.

FIG. 3 is a third embodiment of the recycled water recycling device according to the present invention.

FIG. 4 is a fourth embodiment of the gray water recycling apparatus according to the present invention.

FIG. 5 is a fifth embodiment of the recycled water recycling device according to the present invention.

FIG. 6 is an embodiment of the water supply / supply means of the recycled water recycling device according to the present invention.

FIG. 7 is a schematic view of an operating portion of the recycled water recycling device according to the present invention.

[Explanation of symbols]

1: Water tank 3: Recycled water recycling device 5: Water supply / supply means 7: Bathtub 9: House drain plug 11: Rainwater branch pipe 13: toilet bowl 15: Sprinkler 17: Water pipe 19: Water storage measuring means 21: Tap water supply amount measuring means 23: Means for measuring the amount of supplied water 25: Devices and equipment that use gray water 29: Reused raw water 31: 3-way valve 33: Pump 35: 2-way valve 37: Tap water opening / closing valve 39: Control unit 41: Operation unit 43: Water supply / supply detection unit 45: Water switch 47: Stop switch 49: Water supply / replenishment amount setting switch 51: Supply switch 53: Display

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Ken Takagi             2-1-1 Nakajima, Kokurakita-ku, Kitakyushu City, Fukuoka Prefecture             No. Totoki Equipment Co., Ltd. (72) Inventor Shinyo Endo             2-1-1 Nakajima, Kokurakita-ku, Kitakyushu City, Fukuoka Prefecture             No. Totoki Equipment Co., Ltd. (72) Inventor Yoshiaki Araki             2-1-1 Nakajima, Kokurakita-ku, Kitakyushu City, Fukuoka Prefecture             No. Totoki Equipment Co., Ltd.

Claims (5)

[Claims] 1. A water tank for storing domestic wastewater including rainwater and bath water, tap water replenishing means for replenishing tap water when the amount of water stored in the water tank is less than or equal to a lower limit, and the inside water of the water tank is used. In the medium water reusing device that has the medium water supply device that supplies the device and equipment that operate, the amount of stored water that measures the amount of stored water in the water tank and the amount of supply that measures the amount of water supplied from the water tank Equipped with measuring means and tap water replenishment amount measuring means for measuring the amount of tap water replenished to the water tank, and calculating the water amount by subtracting the measured value of the tap water replenishing means from the measured value of the supply amount measuring means during a predetermined period. However, the amount of water obtained by subtracting the measured value of the tap water supply unit from the measured value of the supply amount measuring unit during the predetermined period and the current measured value of the stored water amount measuring unit are displayed on the display unit. Water reuse device. 2. The information displayed on the display means is a current measured value of the stored water amount measuring means and a water amount obtained by subtracting the measured value of the tap water replenishing means from the measured value of the supply amount measuring means in the predetermined period. The water recycling system according to claim 1, wherein the predetermined period is the predetermined period. 3. A plurality of the display means are arranged at an operation section of an indoor water reuse device installed indoors, or at a place where an apparatus or facility that uses the indoor water is installed. Item 1. The reclaimed water device according to item 1 or 2. 4. The gray water reusing device according to claim 1, wherein the display means is provided with an operation switch for setting a bath water amount to be fed to the water storage tank. 5. The display means is provided with an operation switch for opening and closing a valve which is means for supplying tap water to the water tank, thereby increasing the amount of water stored in the water tank. The gray water recycling device according to any one of 1 to 4.