JP3625117B2 - Water tank agitator for bath drainage reuse system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a water tank internal stirring system in a system for enabling reuse of bathtub water as toilet flushing water in a house.
[0002]
[Prior art]
In Japan, population density is high and annual precipitation per capita is not high. In addition, the topography is steep and less water is available. However, the amount of water used tends to increase year by year, and the current situation is that drought problems occur every year. Under such circumstances, in order to effectively use water resources, a bath drainage reuse system that reuses drainage from a bathtub with relatively good water quality and stable water volume as toilet flushing water for toilets is known. It has been proposed by the present applicant.
[0003]
Conventionally, in the bath drainage reuse system, the drainage of the bathtub is once stored in a water storage tank, and this drainage is pumped up by a pump and sent to the toilet, so that dirt in the water storage tank accumulates and becomes sediment. The sediment deposited in the tank may be periodically cleaned and removed, but inspection and cleaning of the tank installed outdoors is troublesome and may not be performed.
If the sediment remains in the water storage tank without being discharged for a long period of time, the organic matter will rot and become unsanitary, causing a bad odor. In the long term, the amount of sediment in the water tank increases, the apparent capacity of the water tank decreases, and the required amount of water cannot be stored.
[0004]
In order to prevent such a situation, in the bath drainage reuse system, it is possible to eliminate the need for cleaning by discharging the sediment in the water storage tank from the water storage tank together with the water supplied to the toilet. As a method of promoting the discharge of materials, a method has been proposed in which a dedicated pump is prepared and water or air is sent into the water to stir the tank, or the water tank is mechanically stirred with a stirrer or the like. It was.
[0005]
[Problems to be solved by the invention]
However, if a dedicated pump, a stirrer, or the like is provided as described above, the bath drainage reuse system becomes expensive and maintenance such as failure is required. Moreover, if the water tank is constantly stirred, the efficiency is low, and if a timer or the like is provided for intermittent stirring, the system becomes more expensive.
Therefore, the present invention stirs the water tank without providing a dedicated pump or stirrer, and stirs intermittently and only when necessary by a simple and inexpensive method without providing a timer. We propose a bath drainage reuse system that discharges sediments simultaneously with water supply to the toilet.
[0006]
[Means for Solving the Problems]
The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.
And water bath effluent drained from the bath to the water storage tank, the water pumps when the toilet using discharging water bath wastewater in the water storage tank, the bath drainage reuse system for reusing as toilet flushing water, pumping the wash water pump 4, a bypass pipe 32 is provided in the middle of the pumping pipe 7 guided to the wash water tank 3 of the toilet 5, a solenoid valve 31 is provided in the middle of the bypass pipe 32, and a nozzle 32 a that ejects wash water at the tip. The washing water is ejected from the nozzle 32 a into the water storage tank 2 to stir the bath drainage in the water storage tank 2, and the water in the washing water tank 3 is reduced. In conjunction with the start of the operation, the electromagnetic valve 31 is configured to open, and the bath drainage and sediment in the water storage tank 2 are simultaneously absorbed from the water absorption pipe 6 and discharged to the washing water tank 3. It is intended.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the present invention will be described.
FIG. 1 is a diagram showing an embodiment of a bath drainage reuse system in a house where bathrooms are arranged only on the first floor and toilets are arranged on the first and second floors, and FIG. 2 is a mechanism for guiding the bathtub water in the bathtub to the water storage tank. FIG. 3 is a diagram showing a mechanism for agitating the bath drainage of the water storage tank.
[0008]
Fig. 4 is a plan view of a housing site with a water tank buried in the space between the building and the adjacent land on the north side, and Fig. 5 is a diagram of the water tank when the water tank is buried in the space between the building and the adjacent site. FIG. 6 is a plan view of the water storage tank, FIG. 7 is a side view of the water storage tank, and FIG. 8 is a front view of the water storage tank.
[0009]
The outline of the bath drainage reuse system will be described with reference to FIG.
A bathtub 1 is provided inside a bathroom C arranged in the house. Since the water in the bathtub 1 becomes unnecessary after bathing, the water is stored in the water storage tank 2 from the drain port 1a via the drain pipe 8. The drain pipe 8 is a path for guiding bath drainage into the water storage tank 2.
And the sewage used in the washing place of the bathroom C is comprised so that it may flow into the sewer 9 via the sewage drain pipe 19 which is a path | route for guiding this sewage to the sewer 9 from the drain outlet 1b. In addition, an eye plate 35 for removing hair and the like in the bath drain is disposed at the drain port 1a. This prevents hair or the like from entering the water storage tank 2.
[0010]
Bath water discharged from the drain pipe 8 into the water storage tank 2 and stored in the water storage tank 2 is supplied to the washing water tank 3 by the pumping pump 4 along with the use of the toilet 5. That is, when the washing water in the washing water tank 3 decreases, the washing water is sucked from the water absorption pipe 6 by the pump 4 and supplied to the washing water tank 3 through the pumping pipe 7.
Similarly, when the toilet bowl 15 is used, the bath drainage in the water storage tank 2 is supplied to the washing water tank 13 by the pumping pump 4. Then, the washing water after washing the toilet bowl 5 or the toilet bowl 15 is drained from the washing drain pipe 12 to the sewer 9.
[0011]
About the bath drainage stored in the water storage tank 2, when the supply amount from the bathtub 1 is larger than the usage amount in the toilet D and the water storage tank 2 becomes full, the water is drained into the sewer 9 by the overflow pipe 29. Is done. On the contrary, when the usage amount in the toilet D becomes larger than the supply amount from the bathtub 1, and the water level in the water storage tank 2 approaches the tip level of the water absorption pipe 6 of the pump 4, the water supply from the replenishment pipe 28 It is configured to be refilled with water.
Moreover, since the bath drainage from the bathtub 1 has a relatively high temperature and abundant organic substances, and is in a state suitable for propagation of microorganisms, a sterilization tank 20 is disposed in the middle of the drainage pipe 8, The sterilization tank 20 sterilizes bath wastewater.
[0012]
2 and 3, the operation of the bathtub 1, the water storage tank 2, the pumping pump 4, and the cleaning tanks 3 and 13 will be described.
A drain port 1 a is provided at the bottom of the bathtub 1, and the drain port 1 a communicates from the sterilization tank 20 to the water storage tank 2 through the drain pipe 8. When the bath drainage from the bathtub 1 is stored in the water storage tank 2, the drainage port 1a is opened.
[0013]
When the amount of bath drainage introduced from the drainage port 1a through the drainage pipe 8 to the water storage tank 2 decreases, the ball tap 16 detects the decrease in the amount and opens the replenishment pipe 28 to supply water. Water is supplied and replenished, and at least water is replenished so that the water surface is located above the lower end of the water absorption pipe 6.
The washing water supplied to the washing water tanks 3 and 13 through the pumping pipe 7 is sucked into the washing water tanks 3 and 13 via the pumping pipe 7 by the tap water in the washing water tanks 3 and 13. 17 is configured so that a predetermined amount is always stored in the wash water tanks 3 and 13.
[0014]
Then, the washing water flows from the washing water tanks 3 and 13 to the toilet bowls 5 and 15, respectively. The bath drainage sucked from the water absorption pipe 6 by the pumping pump 4 can be branched to the outdoor sprinkling pipe 27 and used for watering an outdoor planting or the like. Further, the water stored in the water storage tank 2 in this system can be rainwater or clean water.
[0015]
Further, as shown in FIG. 3, a bypass pipe 32 is provided in the middle of the pumping pipe 7 for guiding the bath drainage sucked by the pumping pump 4 to the cleaning tanks 3 and 13, and an electromagnetic part is provided in the middle of the bypass pipe 32. A valve 31 is provided. The electromagnetic valve 31 is configured to open and close in conjunction with the operation of the pumping pump 4, and a nozzle 32 a for ejecting cleaning water is attached to the lower end portion of the bypass pipe 32.
[0016]
When the cleaning water in the cleaning water tanks 3 and 13 is reduced, the ball tap valve is opened, and the cleaning water is supplied to the cleaning water tanks 3 and 13, the pressure in the pumping pipe 7 decreases and the pressure switch 4a Is turned on, and the pump 4 starts operation. Since the pumping pump 4 and the electromagnetic valve 31 are interlocked, the electromagnetic valve 31 opens simultaneously with the start of operation of the pumping pump 4. When the electromagnetic valve 31 is opened, a part of the washing water discharged from the pumping pump 4 flows to the nozzle 32a through the bypass pipe 32.
From the nozzle 32a, washing water spouts out into the bath drainage in the water storage tank 2, and the bath drainage in the water storage tank 2 is agitated. When the bath drainage is agitated, the sediment that has settled at the bottom of the water storage tank 2 is mixed with the bath drainage and floats in the bath drainage, and this sediment is sucked up by the water absorption pipe 6 together with the bath drainage. It is done.
[0017]
Also, in this case, the tip of the nozzle 32a is attached to the angle and direction in which the sediment is best mixed with the bath drainage. When the water supply to the wash water tanks 3 and 13 is finished, the pressure in the pumping pipe 7 rises, the pressure switch 4a is turned off, the pumping pump 4 is stopped, and the electromagnetic valve 31 is also closed.
[0018]
The agitation of the bath drainage is repeatedly performed every time the wash water is supplied to the wash water tanks 3 and 13, but most of the precipitate in the water storage tank 2 is combined with the bath drainage by the agitation mechanism of the bath drainage. Since the water can be absorbed and discharged from the water storage tank 2, the sediment is not left in the water storage tank 2 for a long period of time, and there is no need to clean the water storage tank 2.
[0019]
Further, a strainer 22 is provided in the middle of the water supply pipe 6 to allow the precipitate to pass therethrough, but for example, the pumping pump 4 such as hair that has failed to be removed by the eye plate 35 of the drain port 1a is clogged. I try to remove the big foreign objects. The strainer 22 is installed in an easily visible place on the ground, and is configured to facilitate inspection, cleaning, and maintenance.
[0020]
In this way, it is possible to discharge the sediment in the water storage tank by stirring the water tank 2 only when necessary, while using existing facilities without providing a dedicated pump or stirrer. As a result, an inexpensive bath drainage reuse system was achieved.
[0021]
The pumping pump 4 can be a small pump of the same type as a household well pump, and is composed of a pump, a pressure tank, a pressure switch 4a, and the like. When the washing water is used, the pressure in the pressure tank decreases, the pressure switch 4a detects this, and the pumping pump 4 is automatically driven to supply water.
[0022]
In FIG. 4, the arrangement of the bathroom C, the toilet D, and the water storage tank 2 in the site of the house A is shown. In general, the bathroom C and the toilet D are usually arranged at one corner in the north of the house A, and the water storage tank 2 of the bath drainage reuse system of the present invention is also adjacent to the north side of the house A. It is buried between the ridges B provided between the two. Usually, according to the laws and regulations related to housing, it may be obliged to maintain the distance T between the wall on the north side of the housing A and the fence B to be about 1 meter. By burying, piping from the bathroom C or the toilet D can be shortened.
[0023]
In the interval T, the interval that can be used to actually embed the water storage tank 2 is the range of the interval W in FIG. That is, from the dimension L from the buried foundation 26 of the building to the boundary line 34 of the adjacent land, the dimension L1 from the center of the buried foundation 26 of the building to the end of the buried foundation 26, and the center of the buried foundation 33 of the ridge B from the buried foundation This is the interval W excluding the dimension L2 up to the 33rd end.
[0024]
The water storage tank 2 will be described with reference to FIGS. 6, 7, and 8.
As described above, the interval W, which is a space necessary for embedding the water storage tank 2, is often narrow, but in order to make it possible to embed the water storage tank 2 between the narrow intervals W, The width W1 of the water storage tank 2 shown in FIG. 8 is configured to be the same as or smaller than the interval W. Further, the height H of the water storage tank 2 is the same as the width W or smaller than the interval W, and the embedding depth is made shallow to facilitate the construction.
[0025]
The water storage tank 2 is formed in a substantially cylindrical shape having a flat surface 2b at the bottom when viewed from the front, and an inspection port 2a formed in a substantially circular shape in plan view is provided at the top. The inside of the water storage tank 2 can be inspected through the inspection port 2a.
By forming in this shape, it becomes easy to install horizontally when buried in the ground, and it is strong against the earth pressure received from the surroundings of the water storage tank 2 and prevents deformation and breakage. Can do. Further, since the water tank 2 is not provided with irregularities such as reinforcing ribs, the precipitate easily flows and the stirring is not hindered. As described above, the structure is such that the sediment is not easily accumulated in the water storage tank 2 and the sediment is easily discharged out of the water storage tank 2.
[0026]
Since the water storage tank 2 is formed in this manner, the water storage tank 2 can be embedded even if the site to be embedded is a narrow space where the distance between the outer wall of the building and the boundary of the adjacent land is about 1 m, for example. Sometimes the water storage tank 2 could be easily installed horizontally, making it easier to install. In addition, deformation and breakage of the water storage tank 2 in the soil can be prevented. Further, the sediment is not easily accumulated in the water storage tank 2, and the sediment is easily discharged out of the water storage tank 2.
[0027]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained.
Since it is configured as in the present invention, the water tank 2 is agitated only when necessary, and the sediment in the water tank is discharged without using a dedicated pump or stirrer and using existing facilities. And an inexpensive bath drainage reuse system. In addition, deposits far from the inlet of the water supply pipe can be discharged, and regular cleaning can be dispensed with.
[0028]
In addition, since the sediment in the water storage tank can be discharged while using existing equipment without providing a dedicated pump or stirrer, an inexpensive bath drainage reuse system can be achieved. It was. Further, since the electromagnetic valve is connected electrically in parallel with the motor of the water supply pump, the inside of the water storage tank 2 can be stirred only when necessary when the pumping pump 4 is driven .
[Brief description of the drawings]
FIG. 1 is a diagram showing an embodiment of a bath drainage reuse system in a house in which a bathroom is disposed only on the first floor and toilets are disposed on the first and second floors.
FIG. 2 is a diagram showing a mechanism for guiding bathtub water inside the bathtub to a water storage tank.
FIG. 3 is a view showing a mechanism for stirring bath drainage in a water storage tank.
FIG. 4 is a plan view showing a state in which a water storage tank is buried in a space between a building and an adjacent land on the north side in a residential site.
FIG. 5 is a cross-sectional view showing a storage space of a water storage tank when the water storage tank is embedded in a space between a building and a site adjacent to the site.
FIG. 6 is a plan view of a water storage tank.
FIG. 7 is a side view of a water storage tank.
FIG. 8 is a front view of a water storage tank.
[Explanation of symbols]
A Residential B Wall between adjacent areas C Bathroom D Toilet 1 Bath 2 Water storage tank 3 · 13 Washing water tank 4 Water pump 5 · 15 Toilet 6 Water intake pipe 7 Water supply pipe 31 Electromagnetic valve 32 Bypass pipe 32a Nozzle

Claims (1)

In the bath drainage reuse system that stores the bath drainage drained from the bathtub in the storage tank, absorbs and discharges the bath drainage in the storage tank by the pump when using the toilet, and reuses it as toilet flushing water.
A bypass pipe 32 is provided in the middle of the pumping pipe 7 for guiding the washing water to the washing water tank 3 of the toilet 5 by the pumping pump 4, an electromagnetic valve 31 is provided in the middle of the bypass pipe 32, and washing water is provided at the tip. The nozzle 32a is attached, and the washing water is ejected from the nozzle 32a into the water storage tank 2 to stir the bath drainage in the water storage tank 2.
The solenoid valve 31 is configured to open in conjunction with the start of operation of the pumping pump 4 when the washing water in the washing water tank 3 is reduced, and the water drainage pipe and the sediment in the water storage tank 2 are simultaneously sucked into the water absorption pipe. A water tank agitation device for a bath drainage reuse system, wherein water is absorbed from 6 and discharged to a washing water tank 3 .

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