JP3482981B2 - Sterilization water supply device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention produces sterilizing water having a sterilizing function, stores the produced sterilizing water, and stores the sterilizing water in order to prevent soiling and deodorization of toilet devices and the like. The present invention relates to a sterilizing water supply device for supplying sterilizing water.

[0002]

2. Description of the Related Art Conventionally, as this type of sterilizing water supply device, tap water is electrolyzed to generate sterilizing water having a sterilizing function, and the sterilizing water is passed through a device to be washed such as a toilet bowl to propagate germs. In order to prevent deodorization and deodorization, it is more efficient to temporarily supply a relatively large amount of sterilized water to the part to be cleaned in such a device. In order to increase the capacity of the electrolysis tank, the size of the electrolysis tank must be increased, and as a result, the size of the washing water supply device itself must be increased.Therefore, a liquid reservoir must be provided to store sterilizing water. The placed sterilizing water was made to flow toward the device to be cleaned.

[0003]

However, in the conventional sterilizing water supply device, the sterilizing water having a reduced sterilizing ability may be supplied to the device to be cleaned, which is a sufficient amount. Even if the intended sterilizing water was supplied, the desired antifouling and deodorizing effects could not be obtained.

That is, since the sterilizing water in the liquid reservoir has its sterilizing ability deteriorated with time, when the time from the storage to the supply of the sterilizing water to the device to be cleaned is long, the liquid reservoir is sterilized. Even if the sterilized water inside is flowed, the growth of various bacteria cannot be sufficiently suppressed. Further, even when new sterilizing water is supplied from the electrolytic cell to the liquid reservoir before the supply of the sterilizing water to the device to be cleaned is mixed with the sterilizing water remaining in the liquid reservoir with reduced sterilizing function. As a result, sterilizing water having a sufficient sterilizing function cannot be supplied to the device to be cleaned.

[0005]

Means for Solving the Problem and Its Action / Effect To solve the above problems, the first aspect of the present invention is to provide a sterilizing water producing means connected to a tap water supply source, and the sterilizing water producing means. In the sterilizing water supply apparatus, the sterilizing water supply device comprises a liquid reservoir portion located downstream of the reservoir for storing sterilizing water, and an outflow adjusting means for adjusting the outflow amount of the sterilizing water from the liquid reservoir portion to the device to be cleaned. It is characterized in that a control means for discharging the stored sterilizing water in the liquid storing portion based on the sterilizing water storing time of the storing portion is provided.

In this way, if the stored sterilizing water is discharged based on the sterilizing water storage time of the liquid reservoir, if the time required until the sterilizing function of the stored sterilizing water is lost is exceeded,
Since the stored sterilized water can be discharged, the sterilized water with a lowered sterilizing function is not stored and supplied, and the function of newly introduced sterilized water is mixed with the stored sterilized water. Without being damaged, it is possible to surely suppress the growth of various bacteria.

Further, the control means may discharge the stored sterilizing water in the liquid reservoir based on the time until the stored sterilizing water in the liquid reservoir flows out toward the device to be cleaned next. , The draining operation is not required at the next sterilizing water supply, and the time until the next sterilizing water supply can be shortened.

Further, the control means causes the stored sterilizing water in the liquid reservoir to be discharged based on the time from the previous supply of sterilizing water to the device to be cleaned when starting the supply of sterilizing water to the device to be cleaned. In this case, since the sterilizing water can be discharged in association with the deterioration of the function of the sterilizing water, it is possible to prevent wasteful discharging operation even if the sterilizing performance is not deteriorated.

Next, a second aspect of the present invention is to provide a sterilizing water generating means connected to a tap water supply source, and a liquid reservoir located downstream of the sterilizing water generating means for storing the sterilizing water. In a sterilizing water supply device comprising: an outflow adjusting means for adjusting the sterilizing water outflow amount from the liquid reservoir to the device to be cleaned, in the liquid reservoir before starting the supply of sterilizing water to the device to be cleaned. It is characterized in that a control means for discharging the stored sterilized water is provided.

As described above, if the stored sterilizing water in the liquid reservoir is discharged before the start of supplying the sterilizing water to the device to be cleaned, even if the sterilizing function is deteriorated due to factors other than the storage time, it is necessary to newly add the sterilizing water. The generated sterilizing water having a high sterilizing function can be supplied to the device to be cleaned.

In addition to the water level detecting means for detecting the water level in the liquid reservoir, the control means controls the stored sterilized water in the liquid reservoir only when the water level detecting means detects the water in the liquid reservoir. By draining the water, it is possible to prevent wasteful draining of the wash water even though there is no stored sterilizing water in the liquid reservoir.

Furthermore, if the water level detecting means judges that the water level detecting means is abnormal unless the water level detecting means detects a drop in the water level when the stored sterilized water is discharged, the water level detecting means of the water level detecting means can be operated. Since the operation can be checked, it is possible to prevent the sterilizing water supply device from operating abnormally.

If the device to be cleaned is a toilet device, it is possible to supply sterilizing water having a high sterilizing function to the toilet device, so that it is possible to reliably suppress the growth of germs even in the water pool of the toilet device where germs easily propagate. You can

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an overall configuration diagram of a urinal cleaning device showing a case where a sterilizing water supply device according to an embodiment of the present invention is applied to a urinal 1 as a device to be cleaned. The water supply pipe 2 and the water supply pipe 2 are connected via an on-off valve 3, and the urinal 1 is equipped with a trap portion 5 capable of storing water in order to block offensive odor from the drain pipe 4, Three
Is controlled to be opened and closed by the automatic toilet bowl cleaning system 6.

The urinal automatic cleaning system 6 is provided with a human body detecting device such as infrared ray (not shown), and when a person comes in front of the urinal 1, the on-off valve 3 is opened to pass water to the urinal 1, and in front of the urinal 1. When the person goes away, the on-off valve 3 is closed.

In this embodiment, a bypass pipe 7 is further provided which branches 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 on-off valve 8, electrolysis tank 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 energizing this electrode, tap water passing between the electrodes is electrolyzed to generate free chlorine-containing water having a sterilizing function.

The liquid reservoir 10 stores the free chlorine-containing water that has passed through the electrolysis tank 8 as sterilizing water, and is formed by an atmosphere open type tank, and its liquid level reaches a predetermined high water level (HL). An upper float switch 10a for detecting that it has reached, and a lower float switch 10 for detecting that the liquid level has dropped to a predetermined low water level (LL).
b and are provided.

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

Further, a control device 13 for controlling each load provided in these bypass pipes 7 is provided, and this control device 13 opens the upstream side opening / closing valve 8 and electrolyzes 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 liquid reservoir 10 up to a predetermined high water level (HL), the upstream opening / closing valve 8 is closed and the electrolytic tank 9 is closed. Turn off the power.

After that, the control device 13 controls the downstream opening / closing valve 1
2 is opened and the pressure pump 11 is driven to supply the free chlorine-containing water stored in the liquid reservoir 10 to the urinal 1, and then the liquid level in the liquid reservoir 10 becomes a predetermined low water level (LL). When the pressure drops, the downstream opening / closing valve 12 is closed and the pressure pump 11 is stopped.

The free chlorine-containing water thus supplied to the urinal 1 sterilizes and cleans the inner wall surface of the urinal 1 and is stored in the trap portion 5 to prevent the growth of various bacteria.

Next, this embodiment is applied to a plurality of urinals 1a-1.
FIG. 2 shows a form applied to c and only different points from FIG. 1 will be described.

That is, the bypass pipe 7 on the downstream side of the pressure pump 11 is branched into branch pipes 7a to 7c, and each of the branch pipes 7a to 7c is connected to the urinal 1a through the downstream opening / closing valves 12a through 12c. It is connected to 1c.

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

In the toilet cleaning device having the above structure, the control device 13 controls the sterilizing water supplied to the three urinals 1a to 1c shown in FIG. 2 with reference to the timing chart of FIG. The details will be described.

First, the sequence operation A for supplying chlorine-containing water to the urinal 1a will be described.
At a predetermined time set in advance, the upstream side opening / closing valve 8 is opened and the electrolyzer 9 is energized to electrolyze the tap water flowing into the electrolyzer 9 to generate free chlorine-containing water to store the liquid. Store in 10 as sterile water. Then, the liquid reservoir 10
Is filled with sterilizing water and the upper float switch 10a is turned on, after the delay time t1 (1 second) elapses, energization to the electrolytic cell 9 is stopped and the upstream solenoid valve 8 is closed to store sterilizing water. To finish.

The delay time t1 is set so that the upstream side on-off valve 8 does not repeatedly open and close in a short time even if the upper float SW 10a repeatedly turns on and off in a short time due to a temporary wave in the liquid reservoir 10. It is being done.

Next, after the delay time t5 (1 second) has elapsed after closing the upstream solenoid valve 8, the downstream opening / closing valve 12a corresponding to the urinal 1a is opened, and the delay time t2 (0. After a lapse of 5 seconds, the pressure pump 11 is driven to discharge the sterilizing water in the liquid reservoir 10 to the urinal 1a.
When the water level in the liquid reservoir 10 approaches the sky and the lower float switch 10b is turned off, the delay time t3
After the lapse of (1 second), the pump 11 is stopped and
The downstream side opening / closing valve 12a is closed to end the supply of sterilizing water to the urinal 1a.

Next, the sequence operation B will be described. After the delay time t4 has elapsed from the end of the sterilizing water outflow to the urinal 1a in the sequence operation A, the sterilizing water is stored in the liquid reservoir 10 as in the sequence operation A described above, and then the sterilizing water is discharged to the urinal 1b. It is a thing.

Next, the sequence operation C will be described.
The operation of supplying sterilizing water to the urinal 1c is the same as the sequence operation A or the sequence operation B, but is characterized by the timing of stopping the discharge from the liquid reservoir 10. That is, the delay time t3 ′ until the solenoid valve 12c is closed after the lower float switch 10b is turned off is longer than the delay time t3 until the opening / closing valves 12a and 12b in the operation sequences A and B are closed. It is set.

It is sufficient that the sterilizing water flows out into the urinals 1a to 1c about twice a day, and the operation sequence A
After completion of ~ C, the time until the next flow of sterilizing water into each urinal 1a-c is long, and the sterilizing function of the sterilizing water in the liquid reservoir 10 will be deteriorated by the next release of the sterilizing water. Therefore, most of the sterilizing water in the liquid reservoir 10 is discharged during the delay time t3 ′, so that when the next sterilizing water is supplied, old sterilizing water having a reduced sterilizing function exists in the liquid reservoir 10. Therefore, even if new sterilizing water is supplied from the electrolyzer 9, it will not be mixed with old sterilizing water, and the time for draining operation in the liquid reservoir 10 at the time of starting the storage of sterilizing water. There is no need for it.

Next, the details of the start of the supply of sterilizing water will be described with reference to the flowchart of FIG.

The flowchart of FIG. 4 is an interruption routine for interruption processing at predetermined time intervals, and when it is detected that the set sterilizing water supply time is reached (S102).
Y): Normally, the water level is lower than that of the lower float switch 10b, and almost no sterilizing water remains in the liquid reservoir, so the upper float switch 10a and the lower float switch 10b are turned off (S104N). By opening the open / close valve 8 to allow tap water to flow into the electrolytic bath 9 and supply new electrolytic sterilizing water to the liquid reservoir, sterilizing water having a high sterilizing function can be stored.

However, when the upper float switch 10a or the lower float switch 10b is turned on (S104Y), the sterilizing water is used because the sterilizing water is used in a small amount at the time of the previous sterilizing water supply. When it is judged that the remaining time has passed and the required time has passed since the last cleaning (S106Y), the downstream solenoid valve 12a
The valve is opened (S108), and the pressure pump 11 is driven (S110) to discharge the liquid reservoir 10.

Then, even if a sufficient time (about 15 seconds) has elapsed for draining the liquid reservoir 10 set by the timer T1 in S112 to S116, the upper float switch 1
If both 0a and the lower float switch 10b are not turned off (s116Y), it is determined that the float switch is faulty in S118, the main flow is returned to, and a message indicating the abnormality is displayed on the operation unit (not shown) and the device Prohibit operation and wait.

If both the upper float switch 10a and the lower float switch 10b are turned off during the operation of the timer T1, the timer T1 is cleared (S12).
0), the sterilizing water supply operation described above is started (S12).
2). Even when it is determined in S106 that the required time has not elapsed since the previous cleaning (S106N), the above-described sterilizing water supply operation of sterilizing water is started (S12).
2).

As described above, when the sterilizing water supply is started, it is detected by the upper float switch 10a and the lower float switch 10b that old sterilizing water remains in the liquid storage tank, and the sterilizing water is the last sterilizing water. When it is old sterilized water that has passed a predetermined time from the time of supply, it was determined that the sterilizing function of the sterilizing water was deteriorated and the sterilizing water was discharged. It is possible to detect the presence in the device 10, and the wasteful discharging operation is not performed.

The upper float switch 1 in S104
0a and the lower float switch 10b are ON, it is not particularly necessary to determine whether or not a predetermined time has passed since the previous cleaning in S106. If the sterilizing water supply is started, the drainage operation is always performed. It is possible to discharge the sterilized water having a reduced function remaining in the liquid reservoir 10 and supply fresh sterilized water having a high sterilizing function to the toilet device.

Next, an embodiment for determining the failure of the float switch in detail will be described with reference to the flowchart of FIG.

First, on / off of the upper float switch 10a is detected (S202), and the upper float switch 1 is detected.
When it is detected that 0a is off (S202N), on / off of the lower float switch 10b is detected (20
4). When it is detected that the lower float switch 10b is also off (S204N), it is determined that the upper float switch 10a and the lower float switch 10b are both normal because no sterilizing water remains in the liquid reservoir 10.
206). If the timer T1 is operating, the value is cleared, the main flow is returned to, and storage of sterilizing water is started.

Even if the upper float switch 10a is off (S202N), but the lower float switch 10b is on (S204Y), "water remains in the middle position.""Lower float switch 10b fails on. Since the cause is considered, the downstream side opening / closing valve 12c is opened (S210) and the pump 11 is operated (S2).
12) In the subsequent steps S214 to S218, the sterilizing water remaining in the liquid reservoir 10 is discharged to the urinal 1c during the time set by the timer T1, and the lower float switch 10b is turned off before the timer T1 time is up. If that happens (S216
Y) The discharge of the water remaining in the middle level is completed and the process proceeds to S206. However, if the lower float switch 10b does not transition to the off state (S218Y), it is determined that the lower float switch 10b has failed, and the process proceeds to the main flow. Then, the operation of the device is stopped, and a predetermined error code is displayed on the display means provided in the operating device.

However, when the upper float switch 10a is turned on in S202 (S202Y), the on / off state of the lower float switch 10b is detected (S22).
2) If it is detected that the lower float switch 10b is not turned on (S222N), "the upper float switch 1
ON failure of 0a. Since "the lower float switch 10b is in the off state and water remains in the tank." And the like are possible, the downstream side on-off valve 12c during the time set by the timer T1 in S224 to S232 in this case as well. When the float pump 10a is opened and the float switch 10a is turned off (230Y), the sterilizing water remaining in the liquid reservoir 10 is discharged to the urinal 1c. Although it is determined that the drainage is completed, the process proceeds to S206, but if the upper float switch 10a has not been turned off (S232Y), the upper float switch 10a
It is determined that the ON failure has occurred, the operation is shifted to the main flow, the operation of the apparatus is stopped, and a predetermined error code is displayed on the operation means provided in the controller.

Next, when it is detected that both the upper float switch 10a and the lower float switch 10b are on (S222Y), "a lot of water remains in the tank."ing."
Since the cause such as "the upper float switch and the lower float switch both have an ON failure", S23 is performed.
6, the downstream side opening / closing valve is opened and the pressure pump 11 is operated (S238), and the liquid reservoir 1
The sterilizing water remaining at 0 is discharged to the urinal 1c. If the upper float switch 10a is not turned off and the timer T1 is up (S244), and the float switch 10b is off (S246Y), S234.
Then, it is judged that the upper float switch 10b has failed, the main flow is stopped, the operation of the apparatus is stopped, and a predetermined error code is displayed on the operation means provided in the controller. If it is determined in S246 that the lower float switch 10b is not off (S246N), it is determined that both the upper float switch 10a and the lower float switch 10b are on-failure, and the operation moves to the main flow to stop the device operation. A predetermined error code is displayed on the operation means provided in the controller.

When the upper float switch 10a is turned off (S242Y) while the timer T1 is operating, it is determined whether or not the lower float switch 10b is turned off. When the lower float switch 10b is turned off, it is determined that drainage is completed. The process proceeds to S206, the timer T1 is cleared, the process proceeds to the main flow, and the sterile water storing operation is performed. However, the timer T does not detect that the lower float switch 10b is off.
When 1 times up (S252Y), the process proceeds to S220, it is determined that the float switch 10b is in failure, the process proceeds to the main flow, the device operation is stopped, and a predetermined error code is displayed on the operation means provided in the controller. To do.

The drainage is described as an embodiment in which the downstream opening / closing valve is opened and the pump 11 is operated to drain the drainage to the urinal. However, a flow path dedicated to drainage may be provided, and various modifications may be made. Is possible.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram when a sterilizing water supply device according to the present invention is used in a urinal.

FIG. 2 is an overall configuration diagram showing a form in which the sterilizing water supply device of FIG. 1 is applied to a plurality of urinals.

FIG. 3 is a timing chart showing a sterilizing water supply operation of the sterilizing water supply device of FIG.

FIG. 4 is a flowchart showing a process at the beginning of the supply of sterilizing water in FIG.

5 is a flowchart showing details of the float switch failure determination of FIG.

[Explanation of symbols]

1 ... Urinal 8 ... Upstream on-off valve 9 ... Electrolytic bath 10 ... Liquid reservoir 11 ... Pressure pump 12 ... Downstream on-off valve 13 Control device

Front page continuation (72) Inventor Yasuhiro Kumamoto 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu City, Fukuoka Prefecture Totoki Kikai Co., Ltd. (56) References JP-A-9-221808 (JP, A) JP-A 1-125436 (JP, A) Actual Kaihei 5-27182 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) E03D 1/00-13/00 E03C 1/00-1 / 10 C02F 1/50

Claims (7)

(57) [Claims] 1. A sterilizing water generating means connected to a tap water supply source, a liquid reservoir located downstream of the sterilizing water generating means for storing sterilizing water, and a liquid reservoir from the liquid reservoir to a device to be cleaned. A sterilizing water supply device comprising: a sterilizing water supply unit for adjusting the sterilizing water outflow amount; and a control unit for discharging the stored sterilizing water in the liquid reservoir based on the sterilizing water storage time of the liquid reservoir. A sterilizing water supply device characterized in that 2. The control means discharges the stored sterilizing water in the liquid reservoir based on the time until the stored sterilizing water in the liquid reservoir flows out toward the device to be cleaned next. The sterilizing water supply device according to claim 1. 3. The control means discharges the stored sterilizing water in the liquid reservoir based on the time from the previous supply of sterilizing water to the device to be cleaned when starting the supply of sterilizing water to the device to be cleaned. The sterilizing water supply device according to claim 1. 4. A sterilizing water generating means connected to a tap water supply source, a liquid reservoir located downstream of the sterilizing water generating means for storing sterilizing water, and a liquid reservoir from the liquid reservoir to the device to be cleaned. In a sterilizing water supply device comprising: an effluent adjusting means for adjusting the sterilizing water outflow amount, a control means for discharging the stored sterilizing water in the liquid reservoir is provided before the start of supplying the sterilizing water to the device to be cleaned. A sterilizing water supply device characterized in that 5. A water level detector for detecting the water level of the liquid reservoir is provided, and the controller controls the stored sterilized water in the liquid reservoir when the water level detector detects water in the liquid reservoir. The sterilizing water supply device according to claim 1, wherein the sterilizing water supply device is discharged. 6. The sterilizing water supply according to claim 5, wherein the control means determines that the water level detecting means is abnormal unless the water level detecting means detects a decrease in the water level when the stored sterilizing water is discharged. apparatus. 7. The sterilizing water supply device according to claim 1, wherein the device to be cleaned is a toilet device.