JPH11290861A - Liquid sterilizing apparatus and method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To hold the concn. of residual chlorine in a liquid to a predetermined value even if any trouble is generated in a means and process for measuring the concn. of residual chlorine in the liquid. SOLUTION: In a liquid sterilizing apparatus equipped with a residual chlorine measuring means 1 for measuring the concn. of residual chlorine in a liquid and a chlorine supply means 2 supplying chlorine to the liquid based on the measured value of the residual chlorine measuring means 1, a chlorine supply data memory means 3c storing the chlorine supply data in the chlorine supply means 2 is provided and, when trouble is generated in the residual chlorine measuring means 1, the chlorine supply means 2 is controlled on the basis of the data of the chlorine supply data memory means 3c.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and a method for sterilizing liquid such as water in a pool, bathtub or water tank.

[0002]

2. Description of the Related Art Commercial or domestic liquid sterilizers for sterilizing liquids such as water in pools, bathtubs or water storage tanks are conventionally provided with residual chlorine measuring means for measuring the residual chlorine concentration of liquids such as water. And chlorine supply means for supplying chlorine to the liquid based on the measured residual chlorine concentration value.

A liquid sterilizer according to the prior art periodically measures the residual chlorine concentration of a liquid by a residual chlorine measuring means. If the measured value does not reach a predetermined concentration, a signal to that effect is supplied to the chlorine supply apparatus. Means to supply an appropriate amount of chlorine into the liquid. By performing such processing, the residual chlorine concentration of the liquid is maintained at a predetermined value, and the pool,
Liquid such as water in a bathtub or a water tank is sterilized in a state suitable for the use situation.

[0004]

However, in the liquid sterilizing apparatus according to the prior art described above, if any problem occurs in the residual chlorine measuring means, it becomes difficult to measure the residual chlorine concentration of the liquid, Since it becomes difficult to perform appropriate operation of the supply means, there has been a problem that the residual chlorine concentration of the liquid cannot be maintained at a predetermined value.

In such a situation, the liquid sterilizer according to the prior art periodically supplies a fixed amount of chlorine into the liquid as a provisional measure for sterilizing the liquid. However, when chlorine is supplied to the liquid in this way, chlorine is supplied periodically regardless of the residual chlorine concentration of the liquid, so when the number of users such as pools and bathtubs is small,
There has been a problem that the residual chlorine concentration of the liquid becomes unnecessarily high and an unpleasant odor is generated. In addition, when the number of users of the pool or bathtub is large, the residual chlorine concentration of the liquid such as water does not reach a predetermined value, and the liquid such as water in the pool or bathtub cannot be sterilized to a state adapted to the use situation. There was a problem.
That is, there is a problem that the residual chlorine concentration of the liquid cannot be maintained at a predetermined value even when such provisional measures are taken.

Therefore, the present invention has been made to solve the above-mentioned problems of the prior art, and even if some troubles occur in the means and the process for measuring the residual chlorine concentration of the liquid, the present invention is not limited thereto. An object of the present invention is to provide a liquid sterilizing apparatus and a liquid sterilizing method capable of maintaining the residual chlorine concentration at a predetermined value.

[0007]

That is, a liquid sterilizing apparatus according to the present invention for solving the above-mentioned problems comprises a residual chlorine measuring means 1 for measuring residual chlorine in a liquid, and a measured value of the residual chlorine measuring means 1. A chlorine supply means 2 for supplying chlorine to the liquid based on the chlorine supply data storage means 3c for storing the chlorine supply data in the chlorine supply means 2; When a failure occurs in the means 1, the chlorine supply means 2 is controlled based on the data in the chlorine supply data storage means 3c.

According to the liquid sterilizing apparatus of the present invention, even if the residual chlorine measuring means 1 is defective,
Since the chlorine supply means 2 is controlled based on the data of the chlorine supply data storage means 3c and an appropriate amount of chlorine is supplied into the liquid, the residual chlorine concentration of the liquid is maintained at a predetermined value. It becomes possible.

In the liquid sterilizing apparatus according to the present invention, it is preferable that the chlorine supply data storage means 3c store the chlorine supply time and the chlorine supply amount during the supply time.

According to this preferred embodiment, the chlorine supply data storage means 3c stores the supply time of the chlorine and the supply amount of the chlorine at the supply time, and based on the stored time and amount. Thus, the chlorine supply means 2 is controlled, so that the residual chlorine concentration of the liquid can be relatively easily maintained at a predetermined value.

A liquid sterilization method according to the present invention for solving the above-mentioned problems includes a residual chlorine measuring step of measuring residual chlorine in a liquid, and a chlorine supplying step of supplying chlorine to the liquid based on the measured value. In the liquid sterilization method consisting of: having a chlorine supply data storage step of storing the chlorine supply data, if a problem occurs in the residual chlorine measurement step, the data stored in the chlorine supply data storage step And supplying chlorine to the liquid based on the pressure.

According to the liquid sterilization method of the present invention, even if a problem occurs in the residual chlorine measurement step, the chlorine supply step is performed based on the data in the chlorine supply data storage step. Since an appropriate amount of chlorine is supplied to the liquid, the residual chlorine concentration of the liquid can be maintained at a predetermined value.

In the liquid sterilization method according to the present invention, it is preferable that in the chlorine supply data storing step, a supply time of the chlorine and a supply amount of the chlorine at the supply time are stored.

According to this preferred embodiment, in the chlorine supply data storing step, the supply time of the chlorine and the supply amount of the chlorine at the supply time are stored, and the chlorine supply time is stored based on the stored time and amount. Since the supply step is performed, it is possible to relatively easily maintain the residual chlorine concentration of the liquid at a predetermined value.

[0015]

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

FIG. 1 is a schematic view of a liquid sterilizing apparatus according to an embodiment of the present invention. Specifically, the liquid sterilizing apparatus according to the present embodiment is used to sterilize pool water. It is the schematic which showed the state used. FIG. 1 (a) shows a control path of the liquid sterilizer when the residual chlorine meter 1 as a residual chlorine measuring means is operating normally, and FIG.
Shows a control path of the liquid sterilizing apparatus when a failure occurs in the residual chlorine meter 1.

In FIG. 1, the liquid sterilizer according to the present embodiment periodically samples water in a pool 10 and measures the residual chlorine concentration of the sampled water. A hypochlorite tank 2 and a hypochlorite injection pump 4 which constitute chlorine supply means for supplying chlorine into the pool 10 based on the measured value of the residual chlorine meter 1; And a control device 3 for performing the above control.

Residual chlorine meter 1 as residual chlorine measuring means
There are various types, such as a polarographic system, a diaphragm system, and a galvanic system. Polarographic method uses two electrodes to measure water (sampled water)
The residual chlorine concentration is measured from the potential difference between the electrodes at that time, and a reduction current is generated in proportion to the residual chlorine concentration. In the diaphragm type, the electrode is composed of a positive electrode, a negative electrode, a diaphragm, and an electrolytic solution, and this electrode is immersed in measurement water to measure the residual chlorine concentration. In particular,
When the electrode is immersed in the measurement water, residual chlorine molecules in the measurement water pass through the diaphragm, a potential difference is generated between the positive electrode and the negative electrode, and a galvanic current proportional to the residual chlorine concentration is generated. In the galvanic method, the electrode is composed of a positive electrode and a negative electrode,
This electrode is immersed in measurement water to measure the residual chlorine concentration. Specifically, when the electrode is immersed in the measurement water, a potential difference occurs between the positive electrode and the negative electrode, and a galvanic current proportional to the residual chlorine concentration is generated. In the present embodiment, as the residual chlorine meter 1, any of the above-described polarographic, diaphragm, and galvanic chlorine meters may be used, or another type of chlorine meter may be used.
That is, the present embodiment does not limit the residual chlorine meter 1 to any method.

An aqueous solution containing a chlorine component, such as an aqueous sodium hypochlorite solution, is stored in the hypochlorite tank 2 constituting the chlorine supply means. Then, the hypogas injection pump 4 is driven based on a signal from the control device 3, and an aqueous solution (containing a chlorine component) corresponding to the required amount of chlorine is supplied from the hypogas tank 2 via the hypogas injection pump 4. And is supplied into the pool 10.

The control device 3 includes a chlorine meter determination processing unit 3a for determining whether the residual chlorine meter 1 is operating normally, a chlorine supply processing unit 3b for determining the amount of chlorine to be supplied into the pool 10, The apparatus has a chlorine supply data storage unit 3c as a chlorine supply data storage unit that stores a chlorine supply time for the pool 10 and a chlorine supply amount at each chlorine supply time.

The liquid sterilizing apparatus according to the present embodiment having the above-described configuration is generally provided with a residual chlorine measuring step of measuring the residual chlorine concentration of the sampled water by the residual chlorine meter 1 and the following steps based on the measured values. The sub-infusion pump 4 is driven to perform a chlorine supply step of supplying chlorine from the hypo-tank tank 2 into the pool 10, thereby appropriately sterilizing the water in the pool 10 and removing residual chlorine in the water in the pool 10. Maintain the concentration suitable for use. Then, in the liquid sterilizing apparatus according to the present embodiment, the chlorine supply time in the chlorine supply step and the chlorine supply amount at each chlorine supply time are stored in the control device 3.

When the residual chlorine meter 1 is operating normally, there is no problem because the residual chlorine measuring step and the chlorine supplying step are performed without delay. For example, when the electric system of the residual chlorine meter 1 is disconnected), it becomes impossible to measure the residual chlorine concentration normally in the residual chlorine measuring process. become unable. Therefore, in the liquid sterilizer according to the present embodiment,
When an abnormality of the residual chlorine meter 1 is detected by the chlorine meter determination processing unit 3a, the control system (path) in the control device 3
(Switching from FIG. 1 (a) to FIG. 1 (b)), and based on the data stored in the chlorine supply data storage unit 3c, instead of based on the measured value in the residual chlorine meter 1, the sub-injection is performed. The pump 4 is driven to control the supply of chlorine from the hypo-tank tank 2 into the pool 10.

FIG. 2 is a flow chart of the liquid sterilizing apparatus according to the embodiment of the present invention. Hereinafter, each step of sterilizing water in the pool 10 using the liquid sterilizing apparatus according to the present embodiment will be described with reference to FIG.

First, in step 201, a predetermined amount of water is sampled as sampling water in order to measure the residual chlorine concentration of water in the pool 10. This sampling may be performed every predetermined time (for example, every three hours), or may be performed continuously.

Next, in step 202, the residual chlorine concentration is measured using the residual chlorine meter 1.

Next, in step 203, it is determined whether or not the residual chlorine meter 1 as the residual chlorine measuring means is operating normally. Here, if it is determined that the residual chlorine meter 1 is operating normally (if “Yes” is determined in step 203), the process of step 204 is performed next, and the residual chlorine meter 1 It is not working properly (residual chlorine meter 1 has some problem)
Is determined (“No” in step 203), the process of step 208 is performed next. The determination as to whether or not the residual chlorine meter 1 is operating normally is performed by the chlorine meter determination processor 3a of the control device 3.
The chlorine meter determination processing unit 3a is configured to detect, for example, a failure due to disconnection of the electric system of the residual chlorine meter 1, or a state in which the residual chlorine meter 1 is contaminated and cannot be measured. Have been. And the residual chlorine meter 1
Is broken or the measurement is impossible due to contamination, in step 203, the chlorine meter determination processing unit 3a determines “No”.

Next, in step 204, it is determined whether or not to supply chlorine to the pool 10. That is, it is determined whether or not to supply chlorine and, if chlorine is to be supplied, how much chlorine is to be supplied in accordance with the residual chlorine concentration of the sampling water. Here, if the residual chlorine concentration of the sampling water is equal to or higher than a predetermined value, it is determined that there is no need to supply chlorine ("No" in step 204), and then step 2
Step 06 is performed. If the residual chlorine concentration of the sampling water is less than the predetermined value, it is determined that it is necessary to supply chlorine ("Yes" in step 204), and the necessary chlorine concentration is determined according to the residual chlorine concentration of the sampling water. In the state where the chlorine supply amount has been determined,
Step 5 is performed. Whether to supply chlorine and, if so, how much chlorine to supply,
This is performed in the chlorine supply processing section 3b of the control device 3. The chlorine supply processing unit 3b stores, for example, the residual chlorine concentration to be maintained in advance, and compares this value with the residual chlorine concentration of the sampling water to determine whether or not to supply chlorine. Done. Further, a chlorine supply amount corresponding to the residual chlorine concentration is also stored, and the required chlorine supply amount is determined by comparing this value with the residual chlorine concentration of the sampling water.

Next, in step 205, chlorine is supplied to the pool 10 in accordance with the chlorine amount determined in step 204. Specifically, the hypogas injection pump 4 is controlled in accordance with the value determined by the chlorine supply processing section 3b of the control device 3, and the hypogas injection pump 4 is used to
Supplies a predetermined amount of chlorine into the pool 10.

Next, in step 206, chlorine supply data at each time is stored. In particular,
In the chlorine supply data storage unit 3c of the control device 3, the presence / absence of chlorine supply at each time, the chlorine supply amount, and the like are stored. In the chlorine supply data storage unit 3c, not only storage of chlorine supply data but also editing of the stored data is performed. For example, chlorine supply data for each day of the week is edited and stored based on chlorine supply data for two months.

Next, in step 207, it is determined whether or not to stop the apparatus. In the present embodiment, the sterilization process in the pool 10 is repeatedly performed until an instruction to stop the apparatus is issued in this step 207 (until “Yes” is determined in step 207). Therefore, in step 207, “N
If "o" is determined, the process of step 201 is performed next. Note that a series of sterilization processes starting from sampling water sampling in step 201 may be performed continuously, or may be performed at predetermined time intervals. It may be configured to have a predetermined time until the process of step 201 is performed.

Next, in step 208, the data stored in the chlorine supply data storage section 3c of the control device 3 (or stored in an edited state) is read. As described above, the chlorine supply data for each time is stored in the chlorine supply data storage unit 3c in an edited state based on past data.

Next, at step 209, it is determined whether or not to supply chlorine to the pool 10. Specifically, based on the data read in step 208,
At each time, it is determined whether or not to supply chlorine, and if chlorine is to be supplied, how much chlorine is to be supplied. Here, if it is necessary to supply chlorine based on the data ("Y" in step 209).
es "), the process of step 210 is performed next, and if chlorine supply is unnecessary based on the data (if" No "is determined in step 209), then The process of step 211 is performed.

Next, in step 210, chlorine is supplied to the pool 10 according to the chlorine amount determined in step 209. Specifically, based on the judgment in step 209 (the data read in step 208), the hypo-injection pump 4 is controlled, and the hypo-infusion pump 4 is used to move the hypo-injection pump 4 from the hypo-tank 2 into the pool 10. A given amount of chlorine is supplied.

Next, in step 211, an indication that an abnormality has occurred in the measuring means is displayed. Step 20
The processes after 8 are provisional in the event that some abnormality occurs in the measuring means. Therefore, it is necessary to notify the user or the manufacturer of this fact. In step 211, a display for notifying the measuring means that some abnormality has occurred is performed. As the display means at this time, for example, means for displaying on a display provided in the device, means for displaying on a user or some terminal installed in a maker using communication means, and the like can be given.

Next, at step 212, it is determined whether or not to stop the apparatus. Here, when it is necessary to adjust or replace the measuring means,
An instruction of "Yes" is issued to stop the apparatus. If it is not possible to immediately replace the measuring means,
An instruction of "No" is issued, and the processing after step 208 is repeated.

In FIG. 2 described above, step 2
01 to 207 show a sterilization step (see FIG. 1A) in the case where the residual chlorine meter 1 is operating normally, and Steps 208 to 212 show a case in which a problem occurs in the residual chlorine meter 1. The sterilization process (see FIG. 1 (b)) is shown.

As described above, the liquid sterilizing apparatus according to the present embodiment described with reference to FIGS. 1 and 2 has a problem in the measuring means (residual chlorine meter 1) for measuring the residual chlorine concentration. Even in this case, provisional measures such as periodically supplying a fixed amount of chlorine into the liquid are not performed, and chlorine is supplied according to each situation (time) based on past data. It is configured as follows.

Therefore, according to the present embodiment, it is possible to maintain the residual chlorine concentration of the liquid at a predetermined value even if some trouble occurs in the means and process for measuring the residual chlorine concentration of the liquid. Become.

In this embodiment, the case where chlorine is supplied based on the data in the chlorine supply data storage section 3c has been described, but the storage format of this data is not limited to any form. Therefore, the data may simply store the chlorine supply time and the chlorine supply amount at that time, or may be obtained by editing the average of each day of the week from past data. Specifically, for example, one day (24 hours) is divided into eight, the chlorine supply amount is stored every three hours, and storage of this data is performed for a predetermined period (for example, 2 hours).
Months). Next, based on the data within the predetermined period, the data for each day of the week is edited and stored. During the proper operation of the liquid sterilizer, the chlorine supply time and the chlorine supply amount are updated as needed, edited, and stored as new data. If a problem occurs in the residual chlorine measuring means, the data one week before the date is read, and the chlorine dispensing means is controlled based on the data to operate the liquid sterilizing apparatus.

In this embodiment, the case where the sampled water is measured by the residual chlorine measuring means and then discharged as drain has been described. However, the present invention is not limited to this configuration. The water may be circulated and returned to the pool 10 again.

In the above description, the case where the liquid sterilizing apparatus according to the present embodiment is used for sterilizing water in a pool has been described. However, the present invention is not limited to this. The liquid sterilizer according to the present embodiment may be used to sterilize water in a bathtub or a drinking water storage tank. Further, the apparatus and method according to the present invention may be applied to sterilize liquids other than water.

[0042]

As described above, in the present invention, the residual chlorine measuring means for measuring the residual chlorine in the liquid and the chlorine supplying means for supplying chlorine to the liquid based on the measured value of the residual chlorine measuring means are provided. The liquid disinfection device includes a chlorine supply data storage unit that stores chlorine supply data in the chlorine supply unit, and supplies chlorine based on the data in the chlorine supply data storage unit when a failure occurs in the residual chlorine measurement unit. The means are configured to be controlled.

Therefore, according to the present invention, the residual chlorine concentration of the liquid can be kept at a predetermined value even if some trouble occurs in the means and process for measuring the residual chlorine concentration of the liquid. A liquid sterilizing apparatus and a liquid sterilizing method can be obtained.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a liquid sterilization apparatus according to an embodiment of the present invention.

FIG. 2 is a flowchart of the liquid sterilizing apparatus according to the embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 Residual chlorine meter 2 Secondary tank 3 Control device 3a Chlorine determination processing unit 3b Chlorine supply processing unit 3c Chlorine supply data storage unit 4 Secondary injection pump 10 Pool

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI C02F 1/50 531 C02F 1/50 531M 1/76 1/76 A

Claims (4)

[Claims] 1. A residual chlorine measuring means (1) for measuring residual chlorine in a liquid, and a chlorine supplying means (2) for supplying chlorine to the liquid based on a measurement value of the residual chlorine measuring means (1). A liquid disinfection device provided with: a chlorine supply data storage means (3c) for storing the chlorine supply data in the chlorine supply means (2); and when a failure occurs in the residual chlorine measurement means (1), The liquid sterilizer according to claim 1, wherein the chlorine supply unit (2) is controlled based on data in the chlorine supply data storage unit (3c). 2. The liquid sterilizing apparatus according to claim 1, wherein the chlorine supply data storage means (3c) stores a supply time of the chlorine and a supply amount of the chlorine at the supply time. 3. A liquid sterilization method comprising: a residual chlorine measuring step of measuring residual chlorine in a liquid; and a chlorine supplying step of supplying chlorine to the liquid based on the measured value. A liquid sterilization method comprising a chlorine supply data storage step, and supplying chlorine to the liquid based on data stored in the chlorine supply data storage step when a problem occurs in the residual chlorine measurement step. Method. 4. In the chlorine supply data storage step,
The liquid sterilization method according to claim 3, wherein a supply time of the chlorine and a supply amount of the chlorine at the supply time are stored.