JPH1037270A - Sterilized-water flushing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To supply a device to be flushed with sterilized water in a tank, and to prevent an effect on an on-off valve by operating a pump by indicating the stoppage of the inflow of sterilized water to an inflow adjusting means when a detection output of a detecting means remains at a fixed value even after a fixed time passes after the detection output of the detecting means reaches the fixed value. SOLUTION: A switching power supply for electrolysis is started up, and an upstream-side on-off valve 8 is opened while free chlorine-containing water begins to be stored in a liquid reservoir section 10. When reaching to a fixed value of a water level in the liquid reservoir section 10 is detected by an upper float, the upstream-side on-off valve 8 is closed, and storage is completed. The upstream-side on-off valve 8 is closed and a downstream-side on-off valve 12 is opened, and free chlorine-containing water begins to be discharged from the liquid reservoir section 10 to a bypass piping 7 by driving a pressure pump 11. When lowering up to a fixed value of a water level in the liquid reservoir section 10 is detected by a lower float, the pressure pump 11 is stopped, and the downstream-side on-off valve 12 is closed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sterilizing water cleaning apparatus for supplying sterilizing water to a device to be cleaned.

[0002]

2. Description of the Related Art Conventionally, in this type of sterilizing water cleaning apparatus,
Generate sterilizing water from tap water, store the generated sterilizing water in a tank, and supply sterilizing water to the device to be cleaned via an on-off valve /
There was something to stop.

[0003]

However, in the above conventional apparatus, when a tank for storing the sterilizing water is provided,
In the case where the detection means for detecting the water level in the tank is provided, if the swelling of the sterilized water in the tank occurs, the detection means may erroneously detect.

Further, there is a problem that a water hammer is applied to the on-off valve by the operation of the pump provided in the supply path, and a load is applied to the on-off valve.

Accordingly, an object of the present invention is to provide a sterilizing water cleaning apparatus which supplies sterilizing water to a device to be cleaned accurately even when the sterilizing water in the tank is wavy, and which does not affect the on-off valve by operating the pump. To provide.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a sterilizing water generating means connected to a water source, a tank for storing the sterilizing water generated by the sterilizing water generating means, A sterilization water washing apparatus comprising: an inflow adjustment means for adjusting an inflow amount of sterilization water from the generation means to the tank; a detection means for detecting a water level in the tank; and a water level in the tank at a predetermined value. Control means for controlling the inflow adjustment means to adjust the amount of sterile water inflow so as to reach the predetermined time after the detection output of the detection means reaches the predetermined value. Also in the case of the predetermined value, since the inflow adjusting means was instructed to stop the inflow of the sterilizing water, it is assumed that the detection output temporarily becomes a value indicating the predetermined value due to the ripple in the tank. Also Since not immediately stop the sterilizing water influx briefly sterile water inflow stop, start, it is never repeated stop.

[0007] The present invention also provides a device to be cleaned, sterilizing water generating means connected to a water supply source, a tank for storing sterilizing water generated by the sterilizing water generating device, and a tank for storing the sterilizing water from the tank to the device to be cleaned. Outflow adjusting means for adjusting the amount of outflow of sterilized water, wherein the detecting means for detecting the water level in the tank, and the outflow so that the water level in the tank reaches a predetermined value. Control means for controlling the adjusting means to adjust the outflow amount of sterilized water, and the control means controls the outflow of the sterilized water after a predetermined time has elapsed since the detection output of the detection means has reached the predetermined value. Since the outflow adjusting means is instructed to stop, even if the detection output temporarily reaches a predetermined value due to the wave of the tank, the outflow of the sterilized water is not stopped immediately. Sterile water outflow stopped during start, it is never repeated stop.

Further, since the outflow adjusting means includes a pump provided on the downstream side of the tank, pump stop, drive and stop are not repeated in a short time.

[0009] The present invention also provides a device to be cleaned, sterilizing water generating means connected to a water supply source, a tank for storing sterilizing water generated by the sterilizing water generating device, and a device for transferring the sterilizing water from the tank to the device to be cleaned. And an outflow adjusting device for adjusting the outflow amount of the sterilizing water, wherein when the water level in the tank reaches a predetermined value, the outflow adjusting device is controlled to adjust the outflow amount of the sterilizing water. Control means, and wherein the outflow adjusting means arranges a pump and an on-off valve from an upstream side in an outflow channel from the tank to the device to be cleaned, and the control means comprises: When the pressure reaches the predetermined value, the on-off valve is opened, and after a lapse of a predetermined time, the pump is instructed to start driving, so that the pressure of the pump is applied to the on-off valve that is not completely opened. To It can be stopped.

[0010] The present invention also provides a sterilizing water generating means connected to a water supply source and having an electrode for generating sterilizing water, and a tank for storing the sterilizing water generated by the sterilizing water generating means. In the cleaning device, a detection unit that detects a water level in the tank, and a control unit that energizes the electrodes until the water level in the tank reaches a predetermined value to generate sterilizing water, and the control unit includes: An instruction is given to stop energization of the electrode after a predetermined time has elapsed after the detection output of the detection means has reached the predetermined value, so that the detection output temporarily indicates a predetermined value due to the wave of the tank. Even if the power supply is stopped, the power supply to the electrodes is not stopped immediately, so that the power supply to the electrodes is not repeatedly stopped, started, or stopped in a short time.

Further, according to the present invention, the control means discharges the electric charge between the electrodes when the water level in the tank reaches a predetermined value, and for a predetermined time after the detection output of the detection means reaches the predetermined value. Since the discharge was instructed after the lapse of time, the discharge between the electrodes started in a short time,
Stop and start are not repeated.

Further, the present invention is characterized in that the device to be cleaned is a toilet device.

[0013]

FIG. 1 is an overall structural view of a toilet flushing apparatus according to an embodiment of the present invention. A urinal 1 and a water supply pipe 2 are connected via an on-off valve 3, and Toilet bowl 1
Is provided with a storage section 5 for blocking odors and the like from the drain pipe 4, and the on-off valve 3 is controlled to be opened and closed by an automatic toilet flushing system 6.

The automatic toilet flushing system 6 includes a human body detecting device such as an infrared ray (not shown). When a person comes in front of the urinal 1, the on-off valve 3 is opened and water is passed through the urinal 1. When the person leaves, the on-off valve 3 is closed.

In this embodiment, there is further provided a bypass pipe 7 which branches off from the water supply pipe 2 upstream of the on-off valve 3 and joins the water supply pipe 2 downstream of the on-off valve 3. Upstream opening / closing valve 8, electrolytic cell 9, liquid reservoir 1
0, a pressure feed pump 11 and a downstream opening / closing valve 12 are provided.

The electrolytic cell 9 has a pair of electrodes (not shown).
By supplying electricity to the electrodes, tap water passing between the electrodes is electrolyzed to generate free chlorine-containing water.

The liquid reservoir 10 stores the liquid that has passed through the electrolytic cell 9 and is formed by an open-to-atmosphere tank for detecting that the water level has reached a predetermined high water level (HL). And a lower float SW 10b for detecting that the water level has dropped to a predetermined low water level (LL).

The pressure pump 11 is provided for sending the liquid stored in the reservoir 10 to the urinal 1 via the bypass pipe 7 on the downstream side.

Further, a control device 13 for controlling each load provided in the bypass pipe 7 is provided. The control device 13 opens the upstream-side on-off valve 8 and performs electrolysis by a predetermined trigger signal. When the tank 9 is energized to generate free chlorine-containing water, and the free chlorine-containing water is stored in the reservoir 10 to a predetermined high water level (HL), the upstream-side on-off valve 8 is closed and the water is supplied to the electrolytic tank 9. Stop energization.

After that, the control device 13 starts the downstream side on-off valve 1
2 is opened and the pressure pump 11 is driven to supply the free chlorine-containing water stored in the reservoir 10 to the urinal 1, and then the water level in the reservoir 10 drops to a predetermined low water level (LL). Then, the downstream side on-off valve 12 is closed and the pressure pump 11 is stopped.

The free chlorine-containing water supplied to the urinal 1 in this way sterilizes and cleans the inner wall surface of the urinal 1 and is stored in the storage section 5 to prevent the propagation of various bacteria.

Next, a plurality of urinals 1a to 1
2 is shown in FIG. 2, and only the differences from FIG. 1 will be described.

That is, the bypass pipe 7 downstream of the pressure feed pump 11 is branched into branch pipes 7a to 7c, and the branch pipes 7a to 7c are connected to the urinals 1a to 1c through the downstream on-off valves 12a to 12c. 1c.

In FIG. 2, the opening and closing valve 3 controlled by the automatic toilet flushing system 6 and the water supply pipe 2 in which the opening and closing valve 3 is installed are omitted for convenience of explanation.

The control performed by the controller 13 in the toilet bowl washing apparatus having the above configuration will be described in detail with reference to FIG.

First, a predetermined scheduled time (for example, 2
At 2:00), the switching power supply for electrolysis is started. Thereafter (for example, after 10 msec), the upstream-side on-off valve 8
At the same time, the PWM control for the voltage applied to the electrode is started, and the storage in the reservoir 10 is started. here,
The reason why the electrolytic switching power supply (not shown) is started prior to the upstream opening / closing valve 8 is to enable the PWM control to be started immediately when the upstream opening / closing valve 8 is opened. Note that the scheduled time is set at midnight, when there are few users of the toilet flushing device.

The PWM control is for keeping the water containing free chlorine constant, and by changing the pulse width output from the control device 13 to adjust the voltage applied to the electrodes, the current between the electrodes is controlled. It keeps the current constant.

Eventually, the upper float S indicates that the water level in the reservoir 10 has reached a predetermined value (eg, 4.35 liters).
When it is detected by turning on the W10a, after a predetermined time t1 (for example, 1 sec) has elapsed, the PWM control is ended, the upstream side on-off valve 8 is closed, and the storage is ended.

Then, for a predetermined time (for example, 10 msec)
After that, the power supply to the electrodes by the switching power supply is terminated, and after a predetermined time (for example, 10 msec), the electrodes are short-circuited to start discharging the accumulated charges of the electrodes.

Here, even if the upper float SW 10a repeatedly turns on and off in a short time due to the temporary undulation in the liquid reservoir 10, the predetermined time t1 is not limited to the upstream opening / closing valve 8
Is set so as not to repeat opening and closing in a short time.

The discharge of the accumulated charges of the electrodes due to the short-circuit between the electrodes prevents the scale from adhering to the electrodes.

Subsequently, after a lapse of a predetermined time (for example, 1 sec) since the closing of the upstream opening / closing valve 8, the downstream opening / closing valve 12a corresponding to the urinal 1a is opened, and the predetermined time t2 (for example, 50 seconds).
After a lapse of 0 msec), the pressure pump 11 is driven to start discharging from the reservoir 10 to the bypass pipe 7a.

Here, the predetermined time t2 is set so as to prevent the pressure of the pressure feed pump 11 from being applied to the downstream opening / closing valve 12a that is not completely opened.

Eventually, when it is detected by turning off the lower float SW 10b that the water level in the reservoir 10 has dropped to a predetermined value (for example, 0.35 liters), a predetermined time t3
After a lapse of (for example, 1 sec), the pressure pump 11 is stopped, and after a lapse of a predetermined time (for example, 100 msec), the downstream opening / closing valve 12a is closed.

Here, the predetermined time t3 is set so as to prevent the driving / stopping of the pressure feed pump 11 from being repeated in a short time, similarly to the predetermined time t1.
The reason for c is that, similarly to the predetermined time t2, the downstream side on-off valve 12a is closed after the discharge pressure of the pressure pump 11 completely disappears.

After a lapse of a predetermined time (for example, 10 seconds) from the closing of the downstream opening / closing valve 12a, the discharge due to the short-circuit between the electrodes is terminated, the switching power supply is started, and the electrodes are energized. After the elapse), the upstream side on-off valve 8 is opened again and the PWM control is started, and the sterilizing water storage / energization / discharge operation is repeated 3 × 2 times from the bypass pipes 7a to 7c, and the operation is terminated.

Here, by performing the discharge due to the short circuit between the electrodes in the seventh operation for 20 seconds longer than the discharge up to the sixth operation, it is possible to surely prevent the scale from adhering to the electrodes.

At the end of the above operation, the urinals 1a to 1a
1c is washed with sterilizing water, and sterilizing water is stored in traps 5a to 5c of each urinal.

It is needless to say that the predetermined value and the predetermined time are not limited to the above numerical values, but can be freely changed depending on the installation situation and environment.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of an embodiment of the present invention.

FIG. 2 is a diagram in which an embodiment of the present invention is applied to a plurality of urinals.

FIG. 3 is a timing chart showing the operation of the control device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Urinal 2 ... Water supply pipe 3 ... On-off valve 4 ... Drain pipe 5 ... Reservoir 6 ... Toilet automatic cleaning system 7 ... By-pass pipe 8 ... Upstream-side on-off valve 9 ... Electrolytic tank 10 ... Reservoir 11 ... Pressure pump 12 ... Downstream on-off valve 13 ... Control device

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Susumu Suma 2-1, 1-1 Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka

Claims (7)

[Claims] 1. A means for producing sterilized water connected to a water supply,
A sterilizing water washing apparatus comprising: a tank for storing the sterilizing water generated by the sterilizing water generating unit; and an inflow adjusting unit configured to adjust an amount of the sterilizing water flowing into the tank from the sterilizing water generating unit. Detecting means for detecting the water level in the tank, and control means for controlling the inflow adjusting means to adjust the amount of sterile water inflow so that the water level in the tank reaches a predetermined value, and the control means Is configured to instruct the inflow adjusting means to stop the inflow of the sterilizing water after a predetermined time has elapsed after the detection output of the detecting means has reached the predetermined value. 2. A device to be washed, sterilizing water generating means connected to a water supply source, a tank for storing sterilizing water generated by the sterilizing water generating device, and sterilizing water from the tank to the device to be cleaned. A germicidal water washing device comprising: an outflow adjusting unit that adjusts an outflow amount; a detecting unit that detects a water level in the tank; and the outflow adjusting unit so that the water level in the tank reaches a predetermined value. Control means for controlling the amount of outflow of sterile water, wherein the control means stops the outflow of the sterile water after a predetermined time has elapsed since the detection output of the detection means has reached the predetermined value. A sterilizing water washing apparatus, wherein the instruction is given to the outflow adjusting means. 3. The pump according to claim 2, wherein the outflow adjusting means includes a pump installed downstream of the tank.
A germicidal water washing device according to the above. 4. A device to be cleaned, sterilizing water generating means connected to a water supply source, a tank for storing sterilizing water generated by the sterilizing water generating means, and sterilizing water from the tank to the device to be cleaned. A germicidal water washing device comprising: an outflow adjusting unit that adjusts an outflow amount; a control unit that controls the outflow adjusting unit to adjust an outflow amount of the sterilizing water when a water level in the tank reaches a predetermined value. Wherein the outflow adjusting means arranges a pump and an on-off valve from an upstream side in an outflow channel from the tank to the device to be cleaned, and the control means, wherein the water level is the predetermined level. A sterilizing water washing apparatus characterized in that when the value reaches a value, the on-off valve is opened and an instruction is given to start driving the pump after a lapse of a predetermined time. 5. A germicidal water cleaning apparatus comprising: a germicidal water generating means connected to a water supply source and having an electrode for generating germicidal water; and a tank for storing the germicidal water generated by the germicidal water generating means. A detection unit for detecting a water level in the tank, and a control unit for generating sterile water by energizing an electrode until the water level in the tank reaches a predetermined value; and A sterilizing water cleaning apparatus, wherein an instruction is given to stop energization of the electrode after a predetermined time has elapsed after the detection output has reached the predetermined value. 6. The control means discharges the electric charge between the electrodes when the water level in the tank reaches a predetermined value, and after a predetermined time elapses after the detection output of the detection means reaches the predetermined value. The sterilizing water cleaning apparatus according to claim 5, wherein an instruction is given to perform discharging. 7. The sterilized water cleaning apparatus according to claim 1, wherein the apparatus to be cleaned is a toilet device.