JP2631456B2 - Urinal flush water regeneration device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a urinal flushing water regenerating apparatus. More specifically, the present invention relates to a urinal flushing water regenerating apparatus that is generally used, such as a railway vehicle, a ship, and a station building.

[0002]

2. Description of the Related Art Conventionally, urinal flush water is used for urinals installed in, for example, railway vehicles, ships, station buildings, and the like.
The flush water is used to prevent urine stains on urinals and odors from the sewage tank.

The inventor has proposed a urinal flushing water regenerating apparatus disclosed in Japanese Patent Application No. Hei 6-52484 (see Japanese Patent Application Laid-Open No. Hei 7-216958). The device has a structure as shown in FIGS. That is, 11 is a urinal. A filter 12 is attached to a toilet outlet below the urinal 11. The filter 12 is a detachable filter, and prevents clogging of piping due to dust, urine stone, and the like. The filter 12 contains a urinary stone remover. 13
Is a drain pipe. The drain pipe 13 is attached to a lower part of the filter 12. Reference numeral 14 denotes a switching valve. Switching valve 14
Is a three-way switching valve in this embodiment, and is installed below the urinal 11 so as to communicate with the urinal 11 through a drain pipe 13. A switching valve motor 15 causes the switching valve 14 to perform a switching operation.

Reference numeral 16 denotes a sewage pipe. Sewage pipe 1
6 is connected to the urinal 11 via the switching valve 14 and the drain pipe 13 in a state where one of the switching valves 14 is selected. 17 is a waste tank. The waste tank 17 is installed at a lower end of the waste water pipe 16. Reference numeral 18 denotes a used washing water pipe. The used washing water pipe 18 is connected to the urinal 11 via the switching valve 14 in a state where the other switching valve 14 is selected. 19 is a treated water tank. Treated water tank 19
Is installed at the lower end of the used washing water pipe 18 to remove urine from the used washing water. That is, the treated water tank 1
9 is formed by laminating a lower storage tank 20, an activated carbon 21, a chlorine-based chemical 22, and a washing water tank 23 as shown in FIG. The washing water tank 23 is refilled with 6 l of fresh water for the first time by the water tank 24.

[0005] Reference numeral 25 denotes a pump. The pump 25 is installed near the treated water tank 19, and allows the treated water treated in the treatment tank 19 to flow into the urinal 11.

Reference numeral 31 denotes a user detection sensor. The user detection sensor 31 is installed above the urinal 11,
The presence or absence of a user coming in front of the urinal is sensed.

Reference numeral 32 denotes control means. The control means 32
It is connected to the user detection sensor 31, the switching valve motor 15, the user detection sensor 31, and the pump 25. The control means 32 controls the urinal 11 from the user detection sensor 31.
If a signal indicating that the presence of the user is not received is received, the switching valve 14 operates the switching valve motor 15 so as to close the sewage pipe and the used washing water pipe. Control means 3
2 receives the signal from the user detection sensor 31 to detect the presence of the urinal user, and operates the switching valve motor 15 so that the switching valve 14 opens to the sewage pipe 16. The control means 32 then controls the user sensor 31
Receives a signal indicating that there is no urinal user from the toilet, controls the pump 25 to flow the treated water into the urinal, and after a certain period of time, the switching valve 14 is opened to the used flush water pipe 18. And after a certain period of time the switching valve 14
The control means controls the switching valve motor 15 so as to bring the sewage pipe 16 and the used washing water pipe 18 into a closed state.
This prevents odor from rising from the waste tank 17.

For this reason, in Japanese Patent Application No. 6-52484 (see Japanese Patent Application Laid-Open No. Hei 7-216958), the control means 32
If a signal indicating that the urinal user is present is not received from the user sensor 31, the switching valve 14 closes the sewage pipe 16 and the used flush water pipe 18. And the waste water pipe 16 and the used washing water pipe 18 are closed.

The control means 32 controls the user detection sensor 31
Receives the signal indicating that the urinal user is present, the switching valve 14 causes the sewage pipe 16 to open.
Then, urine flows into the waste tank 17. Next, when the urinal user finishes using and leaves the urinal 11, the control means 32 receives a signal from the user detecting sensor 31 indicating that the urinal user is not present. Then, the control means 32 causes the pump 25 to flow the treated water into the urinal 11. The washing water flows in 2000 cc. Next, the control means 11 causes the switching valve 14 to open to the used washing water pipe 18 after the initial 200 cc of washing water among the flowing washing water flows. Then, the wastewater in which the first urine is thickly mixed flows into the waste tank 17, while the wastewater in which the urine is diluted flows into the treated water tank 19.

After a certain period of time, the control means 32
The switching valve 14 causes the sewage pipe 16 and the used washing water pipe 18 to be closed. Then, the odor from the waste tank 17 is blocked. Urinal flush water 2000 cc / time Use frequency 50 times / day Urination volume 250 cc / person 250 cc × 50 = 12.5 L / day COD per 1000 urine 4 g (according to literature) 250 cc urine was used as urinal Approximately 10 cc (4% measured value) of the amount of urine adhering to the toilet in the case of urine About 2.5 cc (1%)
/ 4) Predicted value COD of 2.5 cc is 0.004 g × 2.5 = 0.01
g The daily COD contained in the washing water is 0.01 × 50 =
O. 5 g Activated carbon has a COD adsorption amount of 90 g 90 g / 0.5 = 180 days The theoretical replacement cycle of activated carbon is 6 months, but it is considered 3 months for safety. 22.5L of sewage generated per day (50 persons /
Day) urine + wash water = 0.25 + 0.2 = 0.45 L / time 0.45 L × 50 persons = 22.5 L / day And it has the effect of reducing the amount of washing water.

[0011]

However, Japanese Patent Application No. Hei 6-52484 (see Japanese Patent Application Laid-Open No. Hei 7-216958).
In the "urinal flushing water regenerating apparatus", since activated carbon 21 is used in the treatment rank 19, various germs grow on the activated carbon, and there is a problem that it becomes a source of an unpleasant odor. Furthermore, in order to avoid the generation of odor, 40
Although it is desirable to use 00 cc to 5000 cc of wash water, if a large amount of wash water is prepared, the wash water tank of a vehicle or the like consisting of a limited number of containers overflows. In the conventional urinal washing water regenerating apparatus including the "apparatus", 1000 to 200
0 cc of wash water was used. However, 100
There was a problem that it was difficult to completely clean using the washing water of about 0 cc to 2000 cc.

[0012]

When the control means does not receive a signal indicating that the urinal user is present from the user detection sensor, the switching valve closes the sewage pipe and the washing water tank,
The pump is turned off. Therefore, the treated water does not flow into the urinal from the pump.

When the control means receives a signal from the user detection sensor indicating that the urinal user is present, the control means activates the pump for a certain time and causes the switching valve to open the sewage pipe. Therefore, the treated water flows into the urinal in the early stage of use of the urinal user. In addition, treated water and urinals urine flow into the sewage pipe.

When the control means does not detect the urinal user from the user detection sensor, the control means activates the pump for a certain period and causes the switching valve to open the washing water tank. Therefore, the washing water flows into the washing water tank.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIG. 1 showing a schematic front view and FIG. 2 showing a time chart thereof.

Reference numeral 51 denotes a urinal. Reference numeral 52 denotes a sewage pipe which is attached to the drain side of the urinal 51. 53 is
It is a primary filter. The primary filter 53 is attached in the middle of the sewage pipe 52. 54 is a switching valve. The switching valve 54 is installed below the sewage pipe 52 so as to communicate with the urinal 51. On the downstream side of the switching valve 54, 2
Is branched into a pipe. One pipe is sewage pipe 5
5 and the other is a washing water connecting pipe 56. The other end of the sewage pipe 55 is connected to a sewage tank (not shown). 57 is
The washing water tank is connected to the other end of the washing water connecting pipe 56.

The switching valve 54 communicates with a sewage pipe 55,
The closed state can be selected for the communication with the washing water connecting pipe 56 and the closed state of the dirty water pipe 55 for the washing water connecting pipe 56 as well. That is, the washing water tank 57 is connected to the urinal 51 via the switching valve 54 in a state where one of the switching valves 54 is selected, and the switching valve 54 in a state where the other of the switching valves 54 is selected.
Is communicated with the urinal 51 via the. Reference numeral 58 denotes a water supply line, which communicates with external fresh cleaning water via a water supply valve 59 formed of an electromagnetic valve. Reference numeral 60 denotes a water level sensor which detects the water level of the washing water tank 57.

Reference numeral 61 denotes a pump. The pump 61 causes the treated water stored in the washing water tank 57 to flow into the urinal 51. 62 is a user detection sensor. In this embodiment, the user detecting sensor 62 includes a light user detecting sensor, and detects the presence of a urinal user. 63 is
A circulation pipe 64 is a treatment agent tank. The treatment agent tank 64
It is attached to the upper part of the urinal 51 and contains a urine stone remover. The circulation pipe 63 connects the cleaning water tank 57 and the treatment agent tank 64. The treating agent tank 64 is connected to the upper part of the urinal 51 via a treated water pipe 65.

Switching valve 54, water supply valve 59, water level sensor 6
The zero user detection sensor 62 and the pump 61 are connected to control means (not shown) including a microcomputer. Next, the operation of the embodiment will be described.

If the control means does not receive a signal from the user sensor 62 indicating that a urinal user is present, the switching valve 54 turns on the sewage pipe 55 and the washing water tank 57.
And the pump 61 is turned off.
Therefore, the treated water does not flow into the urinal via the treated water pipe 65 from the pump 61.

When the control means receives the signal indicating the presence of the urinal user from the user detection sensor 62, the control means activates the pump 61 for 4 seconds and causes the switching valve 54 to open the sewage pipe 55. Let me take it. It takes 5 seconds to operate the switching valve 54. For this reason, treated water flows into the urinal 51 at the beginning of use by the urinal user to wet the urinal, thereby minimizing adhesion of urinal to the urinal 51 surface. The treated water flows into the urinal 51 by contacting the urine stone removing agent stored in the treating agent tank 64 so that the treated water contains the urine stone removing agent. Further, the treated water and urinal of the urinal user continue to flow into the sewage pipe 55, and the sewage pipe 5
Approximately 200 cc flows into the 5 each time it is used.

When the control means no longer detects the urinal user from the user detection sensor 62, the pump 61 is operated for 14 seconds to allow the treated water to flow into the urinal 51, and the switching water valve to the switching valve 54. 57 is opened. Therefore, the used washing water only in the portion where the concentration of urine is low flows into the washing water tank 57.

4,000 to 5,000, including early and after use
000 cc of treated water flows into the urinal 51.

The water level sensor 60 indicates that the water level has dropped, that is, about 20
When the control means receives a signal indicating that the water level has decreased by 0 cc, the control means operates the water supply valve 59 to inject new washing water into the approximately 200 cc washing water tank 57 to the initial water level. The urine is not injected into the washing water tank 57, and new washing water is injected into the washing water tank 57 each time it is used.
Urinal 51 is kept clean. In this embodiment, urine and spent treated water having a high concentration of urine are supplied to the sewage pipe 55.
It is discharged from the garbage and is recycled by adding new treated water to used treated water with low urine concentration, so that the concentration of urine in treated water can be kept at a certain level without using activated carbon . Further, in this embodiment, no activated carbon is used, so that it is possible to prevent the propagation of various bacteria and the generation of odor with the activated carbon.

[0025]

Therefore, in the present invention, since the flush water is sufficiently used, the entire toilet bowl is cleaned.

[Brief description of the drawings]

FIG. 1 is a schematic front view of an embodiment of the present invention.

FIG. 2 is a time chart of an embodiment of the present invention.

FIG. 3 is a front view of a conventional example.

FIG. 4 is a schematic view of a conventional use state.

[Explanation of symbols]

 51 urinal 53 filter 54 switching valve 55 sewage pipe 57 washing water tank 61 pump 62 user detection sensor

Claims (1)

(57) [Claims] 1. A urinal, a switching valve installed at a lower part of the urinal so as to communicate with the urinal, and a sewage pipe communicated with the urinal via the switching valve when one of the switching valves is selected. ,
A flush water tank that communicates with the urinal via the changeover valve while the other of the changeover valves is selected and communicates with the water supply valve that supplies new flush water, and the treated water stored in the flush water tank is flushed with the urinal. The pump comprises: a pump to be supplied; a user sensor for detecting the presence of a urinal user; and a switching valve, a water supply valve, a user sensor, and control means connected to the pump. If it does not receive a signal indicating the presence of a urinal user from the company, the switching valve closes the sewage pipe and washing water tank and the pump turns off, and the switch detects the urinal. Upon receiving a signal indicating the presence of a urinal user, the pump is operated for a certain period of time, and the switch valve is connected to the sewage pipe while the user detection sensor detects the presence of the urinal user. When the urinal is no longer detected by the user sensor, the pump is operated for a certain period of time and the switching valve is opened to the washing water tank for a certain period of time. A urinal flushing water regenerating device characterized by closing a sewage pipe and a flushing water tank.