JPH1150507A - Sterilization device for bathwater recycling system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable bathwater discharged from a bathtub to be sterilized by adjusting the same to a set chloride concentration when recycled for use as toilet flush water. SOLUTION: A sterilization device for use in a bathwater recycling system has a sterilizing tank 10 placed in a conduit connecting a bathtub to a water storage tank, the sterilizing tank 10 being provided to face an inlet 11a in a container main body 11 and comprising a shutter 12 capable of adjusting the opening of the inlet 11a, a strainer 13 having a flow straightening plate 131 placed in the container main body 11 in such a way as to surround the shutter 12, and a chemical cylinder 14 provided to face an outlet 11b in the container main body 11 and having a small hole 141b formed through the lower parts of its bottom wall and/or circumferential wall. Bathwater flowing into the sterilizing tank 10 has its inflow rate adjusted by the shutter 12, is straightened by the flow straightening plate 131, and is further contacted through the small hole 141b with a chlorine chemical M stored in the chemical cylinder 14, so that it flows out of the outlet 11b after being adjusted to a set chlorine concentration.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art Generally, bathtub water is stored in a bathtub in case of drought or when water is cut off, and is reused as flush water for a toilet. In this case, if the bathtub water in the bathtub is stored for a long time, there is a problem in hygiene and maintenance such that the bathtub becomes heavily soiled and the bathroom becomes entirely wet and mold is generated.

[0003] Therefore, bathtub water discharged from the bathtub is guided to a water storage tank to be 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 the flush water tank to be used as toilet flush water. Re-use has been proposed (see Japanese Patent Application Laid-Open No. 9-3979).

[0004] In such a bathtub water recycling system, in the summertime, various bacteria may proliferate in the water storage tank and the bathtub water may become spoiled. It may cause discomfort such as cloudiness of water and an unpleasant odor. In order not to cause such discomfort, bathtub water from the bathtub is sterilized by contacting it with the chlorine agent stored in the chlorine sterilizer to prevent the growth of various bacteria in the bathtub water stored in the water storage tank. I am trying to do it.

[0005]

By the way, in the above-mentioned bath water reuse system, the bath water from the bath is directly introduced into the chlorine sterilizer and comes into contact with the chlorine chemical. The amount of dissolution tended to increase. In other words, the residual chlorine concentration in the bathtub water is increased to increase the load on the downstream sewage treatment facility, and the consumption of the chemical is so severe that the chlorine chemical must be replaced frequently.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a bath water reuse system capable of adjusting bath water to be reused as toilet flush water to a set chlorine concentration and sterilizing the water. A sterilization apparatus is provided.

[0007]

SUMMARY OF THE INVENTION According to the present invention, bath water discharged from a bath is guided to a water storage tank and stored therein, and when the toilet is used, the bath water stored in the water storage tank is pumped up by a water supply pump to a washing water tank. In a bathtub water recycling system for supplying and reusing as toilet flush water, a container body having an inlet and an outlet, and a shutter provided facing the inlet of the container body and capable of adjusting the opening of the inlet, A sterilizer comprising a strainer having a current plate arranged to surround the shutter, and a drug cylinder provided facing the outlet of the container body and having a small hole formed in the bottom wall and / or lower peripheral wall. The tub is connected to the water conduit connecting the tub and the water storage tank, and the tub water in the tub, which flows into the sterilization tub, is adjusted by the shutter and rectified by the rectifier plate. , It is contacted through the chlorine agent and a small hole which is accommodated in the chemical cartridge, and is characterized in that outlet an outlet at a set chlorine concentration.

[0008]

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

FIG. 1 shows a sterilizing apparatus for a bath water reuse system according to the present invention. First, the bath tub water reuse system 1 will be described. A water storage tank 2 is buried in the site of the house A, and the water storage tank 2 is provided with a drain port of the bath tub b installed in the bathroom B of the house A. The other end of the water pipe 3 to which one end is connected is connected. A water supply pump 4 is attached to the water storage tank 2. One end of the water supply pump 4 is connected to the water storage tank 2 and the other end of a suction pipe 6 provided with a strainer 5. Is connected to the outlet of the water supply pump 4, and the other end of the supply pipe 7 having one end connected to the washing water tank c installed in the toilet C of the house A. On the other hand, one end of a branch pipe 9 provided with an electromagnetic switching valve 8 is connected to the supply pipe 7, and the other end of the branch pipe 9 is connected to the water storage tank 2.

Therefore, the bath water in the bath b is stored in the water storage tank 2 through the drain pipe 3 from the drain port. Then, when the washing water stored in the washing water tank c of the toilet C is used for washing the toilet c1, although not shown in detail, the pressure drop of the supply pipe 7 is detected and the water supply pump 4 is operated. The bathtub water stored in the water storage tank 2 is pumped up and supplied to the washing water tank c of the toilet C.
On the other hand, when the bath water in the water storage tank 2 is supplied to the cleaning water tank c and the cleaning water tank c is full, the valve (not shown) of the cleaning water tank c closes, and as a result, the pressure in the supply pipe 7 increases. The operation of the water supply pump 4 is stopped.

When the water supply pump 4 starts operating,
As a result of the electromagnetic switching valve 8 being also opened in synchronization, the bathtub water in the supply pipe 7 is partially returned to the water storage tank 2 through the branch pipe 9. Therefore, the bath water stored in the water storage tank 2 can be agitated by the bath water returned to the water storage tank 2. When the operation of the water supply pump 4 is stopped, the electromagnetic switching valve 8 is closed, and the return to the water storage tank 2 is stopped.

By the way, as shown in FIG. 6, the relationship between the concentration of chlorine dissolved in bath water and the number of bacteria is as follows, as long as about 5 mg of chlorine is dissolved per liter of bath water.
Bacteria including Escherichia coli can be reliably killed.

For this reason, a sterilization tank 10 is provided in the above-mentioned water pipe 3. As shown in FIG. 2, the sterilization tank 10 has an inlet 11a and an outlet 1 that can be connected to the water pipe 3.
1b, and a shutter 12 that can be moved up and down to adjust the opening of an inlet 11a of the container body 11.
And a strainer 13 disposed to face the inflow port 11a so as to surround the shutter 12, and a medicine tube 14 disposed to face the outflow port 11b of the container body 11. The upper opening of 11 is closed by a lid 15. Although not shown in detail, the shutter 12 can be fixed at an arbitrary elevating position by a biasing force of a spring. Therefore, the opening of the inflow port 11a is adjusted, and the The amount of inflow of water can be adjusted.

The strainer 13 is detachably attached to the container body 11, and as shown in FIG. 3, the bottom wall and the three side walls except the front surface facing the shutter 12 are formed by a plastic net or a perforated plastic plate. A straightening plate 131 having a fixed height is provided upright on the rear wall facing the shutter 12 with its lower end in contact with the bottom surface of the container body 11. A handle 132 is provided between the upper ends of the two opposing side walls of the strainer 13, and the strainer 13 can be pulled out of the container body 11 by grasping the handle 132.

On the other hand, the medicine tube 14 is attached to the container body 11, and as shown in FIG. 4, a tube body 141 capable of accommodating the chlorine medicine M, and a lid 142 covering the upper opening of the tube body 141. In the lower part of the peripheral wall of the cylinder body 141, a plurality of small holes 141a are formed at intervals, and a small hole 141b is also formed in the bottom wall. The cylindrical body 141 is provided with a certain space between the cylindrical body 141 and the bottom surface of the container body 11 so that bathtub water can enter therein through a small hole 141b formed in the bottom wall thereof. It is fixed to.

Therefore, when the bath water in the bath b flows into the sterilization tank 10 via the water conduit 3, first, the shutter 12
After the inflow amount is regulated by the opening degree of the inflow port 11a determined at the ascending / descending position, the flow is rectified so as to collide with the rectifying plate 131 and go around the left and right ends thereof. At this time, foreign matter such as hair is captured by the strainer 13. Then, the bathtub water, the momentum of which has been attenuated by the current plate 131, penetrates through the small holes 141 a and 141 b of the medicine tube 14 and comes into contact with and dissolves the chlorine medicine M stored in the medicine tube 14. Next, the bathtub water that has come into contact with the chlorine agent M and eluted the chlorine flows out through the outlet 11b and is stored in the water storage tank 2. At this time, when the chlorine agent M dissolves in the bathtub water, the organic substance is oxidized by the action of hypochlorous acid to kill various bacteria.

[0017] Here, the common 300 on the first and second floors
1 liter of bath tub b is installed, and about 80
%, The opening degree of the shutter 12 was changed, and the chlorine concentration of the bath water flowing out of the outlet 11b was measured. Table 1 shows the experimental results.

[0018]

[Table 1]

According to the results of this experiment, even if the installation position of the bathtub b, the formation position of the small holes 141a and 141b formed in the medicine cylinder 14, and the number thereof change, the shutter 12
It is clear that the optimum chlorine concentration can be obtained by changing the opening degree of.

Next, a general 300 liter bath tub b is installed on the first floor, the opening degree of the shutter 12 is changed while the bath tub b is filled with about 80% hot water, and a rectifying plate 131 is provided. In each case, the chlorine concentration of the bath water flowing out of the outlet 11b was measured. As the medicine tube 14 in this case, a medicine tube having a small hole 141b formed only in the bottom wall of the tube main body 141 was used. Table 2 shows the results of this experiment.

[0021]

[Table 2]

According to the experimental results, it is clear that when the current plate 131 is provided, the chlorine concentration can be reduced as compared with the case where the current plate 131 is not provided. That is, when the current plate 131 is not provided, most of the bathtub water flowing from the inflow port 11a collides with the medicine cylinder 14 as it is, as shown in FIG. On the other hand, when the current plate 131 is provided, the bathtub water flowing in from the inlet 11a collides with the current plate 131 and bypasses the current plate 131 as shown in FIG. 5B. Therefore, the momentum is attenuated and collides with the medicine cylinder 14 on average, and comes into contact with the chlorine medicine M and flows out. For this reason, when the current plate 131 is provided, it is considered that the degree of contact with the chlorine agent M is weaker than when the current plate 131 is not provided, and the amount of the chlorine agent M dissolved is reduced and the chlorine concentration is reduced.

As described above, the bathtub water from the bathtub b is supplied to the shutter 12, the current plate 131, and the small holes 141a, 141a.
b, it is adjusted to the set optimal chlorine concentration and sterilized without fail, so that it does not cause discomfort such as an unpleasant smell or cloudiness of the washing water, and also suppresses the consumption of the chlorine agent M. Can be. Things.

In the above-described embodiment, the water tank 20 is provided integrally with the sterilization tank 10, and when the bath water stored in the water storage tank 2 is small, the water is supplied. That is, as shown in FIG. 2, the water tank 20 is divided by a side wall so as to share the container body 11 of the sterilization tank 10.
An introduction pipe 22 provided with a constant water level valve 21 is connected thereto, and an overflow pipe 2 is provided at an upper portion and a bottom portion thereof, respectively.
3 and the supply pipe 24 are connected.

Here, the constant water level valve 21 is a ball tap 2
It opens and closes in conjunction with the operation of 1a. Specifically, when the water level in the water tank 20 decreases, the float 21b of the ball tap 21a lowers following the decrease in the water level, and the constant water level valve 21 linked to the ball tap 21a is opened. Thus, the tap water is introduced into the water tank 20 via the introduction pipe 22 and the constant water level valve 21. On the other hand, if the water level rises sequentially due to the introduction of tap water, the float 21b of the ball tap 21a rises following the rise in the water level. When the float 21b of the ball tap 21a reaches the upper limit water level, the constant water level valve 21 is closed, and thereafter, the introduction of tap water is shut off.

The overflow pipe 23 drains tap water supplied above the upper limit water level.

On the other hand, a constant water level valve 25 (see FIG. 1) is provided in the supply pipe 24, and one end thereof is connected to the water storage tank 2. The constant water level valve 25 also opens and closes in conjunction with the operation of a ball tap (not shown) provided in the water storage tank 2. That is, when the water level of the water storage tank 2 rises and falls, the float 25b (see FIG. 1) of the ball tap follows up and down the water level, and the constant water level valve 25 linked to the ball tap is closed or opened. You. Thus, the tap water in the water tank 20 is introduced into the water storage tank 2 through the supply pipe 24 and the constant water level valve 25, or the introduction is shut off. As a result, tap water is supplied from the water tank 20 so that the level of the bathtub water stored in the water storage tank 2 maintains the set water level.

Further, one end of an overflow pipe 26 is connected to the upper part of the water storage tank 2, and the other end is connected to a sewage pipe 27 for discharging sewage which has washed the toilet c1.
Therefore, when the bathtub water stored in the water storage tank 2 exceeds the upper limit water level of the water storage tank 2, the bathtub water is discharged to the sewer pipe 27 via the overflow pipe 26.

[0029]

As described above, according to the present invention, the bath water discharged from the bath is guided to the water storage tank and stored therein, and when the toilet is used, the bath water stored in the water storage tank is pumped up by the water supply pump to wash water. In a bathtub water reuse system that supplies to a tank and reuses as toilet flush water, a container body having an inlet and an outlet is provided facing the inlet of the container body, and the opening of the inlet can be adjusted. Shutter and
A sterilization tank comprising a strainer having a current plate arranged to surround the shutter, and a drug cylinder provided facing the outlet of the container body and having a small hole formed in the bottom wall and / or lower peripheral wall. Is connected to the water pipe connecting the bathtub and the water storage tank, and the bathtub water of the bathtub flowing into the sterilization tank is
The inflow is adjusted by the shutter and rectified by the rectifying plate.The rectifying plate is further contacted with the chlorine drug contained in the drug cylinder through the small hole, and flows out of the outlet at the set chlorine concentration, thereby being used as toilet flush water. The bath water to be reused can be adjusted to a set chlorine concentration and sterilized.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a sterilizer of a bathtub water reuse system of the present invention.

FIG. 2 is an enlarged sectional view showing a sterilization tank constituting a sterilization apparatus of the bathtub water reuse system of the present invention together with a water tank.

FIG. 3 is a perspective view showing a strainer with a current plate provided in a sterilization tank.

FIG. 4 is a perspective view showing a medicine cylinder provided in a sterilization tank.

FIG. 5 is an explanatory view showing a flow of bath water flowing into a sterilization tank.

FIG. 6 is an explanatory diagram showing the relationship between the chlorine concentration of the bath water and the number of germs.

[Explanation of symbols]

 Reference Signs List 2 water storage tank 3 water guide pipe 4 feed pump 5 strainer 6 suction pipe 7 supply pipe 8 electromagnetic switching valve 9 branch pipe 10 sterilization tank 11 container body 12 shutter 13 strainer 131 straightening plate 14 medicine cylinder 141a, 141b small hole 20 water tank A house B Bathroom b Bathtub C Toilet c Wash water tank c1 Toilet bowl

Claims (1)

[Claims] 1. The bathtub water discharged from the 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 the flush water tank, and re-used as toilet flush water. In a bathtub water reuse system to be used, a container body having an inlet and an outlet,
A shutter that is provided facing the inlet of the container body and has an adjustable opening degree of the inlet, a strainer having a rectifying plate disposed so as to surround the shutter, and a shutter that is provided facing the outlet of the container body. A sterilization tank comprising a medicine tube having a small hole formed in the bottom wall and / or the lower peripheral wall is connected to a water pipe connecting the bathtub and the water storage tank, and the bathtub water flowing into the sterilization tank is shuttered. The flow rate of the bath is adjusted by the flow regulating plate, and the flow is regulated by the flow regulating plate. Further, the flow is brought into contact with the chlorine medicine contained in the medicine tube through the small hole, and flows out of the outlet at the set chlorine concentration. Utilization system sterilizer.