JP2003299587A - Abnormality-detecting device for circulating water tank - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an abnormality-detecting device for a circulating water tank which can prevent accidents from occurring. <P>SOLUTION: This abnormality-detecting device for a circulating water tank is equipped with a cleaning device, and observes abnormality of the circulating water tank which circulates water, hot water, a liquid, or the like, stored in a water storage tank. The abnormality-detecting device has a suction pump which feeds the water, the hot water, the liquid, or the like, in the water storage tank into the cleaning device, a flow meter which detects the current velocity of the water, the hot water, the liquid, or the like, which flows out from the water storage tank, and a power source controlling unit which controls power being fed to the suction pump in response to the current velocity value from the flow meter. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a swimming pool, a large bath, a jet bath, a water storage facility, etc., in which water, hot water or liquid is placed between a water storage tank and a purification device installed outside the water storage tank. The present invention relates to an abnormality detection device for a circulating water tank, which is provided in a circulating water tank for circulating such components and detects an abnormality in the circulating water tank.

[0002]

2. Description of the Related Art In various swimming pools, large baths, and other small water storage facilities installed indoors or outdoors, in order to maintain cleanliness and purity of stored water, hot water, liquids, etc., Circulation operation is performed between the water tank and the purification device.

That is, in order to remove hot water, water, and dirt and impurities contained in the water stored in the water storage tank, hot water, water, liquid, etc. are installed in the bottom and side surfaces of the water storage tank (suction port),
Guide it to a purification device such as a filtration device through a suction pump and a pipe, remove dirt etc. here, and then pipe again.
It is returned to the water tank from the discharge port.

In this way, the circulation operation of water, hot water and liquid in the water storage tank is continuously operated to maintain the required purity in the water, hot water and liquid inside the water storage tank.

[0005]

However, in the circulating water tank as described above, several accidents occur annually at the inlets for water, hot water, liquid, etc., which are installed on the bottom surface, side surfaces, etc. in the water tank. Is occurring. That is, the water in the water tank is forced
Since hot water, liquid, etc. are sent to the purification device, the suction pressure at the suction port is considerably high. When a person or an object approaches the suction port, a part of the human body or an object may be sucked into the suction port to prevent escape and an unexpected accident may occur.

An object of the present invention is to solve such a problem, and an object thereof is to realize an abnormality detecting device for a circulating water tank capable of preventing an accident.

[0007]

The present invention which achieves the above objects is as follows. (1) In a circulating water tank abnormality detecting device, which is equipped with a purifying device and monitors an abnormality in a circulating water tank for circulating water, hot water, liquid, etc. stored in the water tank, A suction pump to be sent to the purification device, a flow meter for detecting the flow velocity of water, hot water, liquid, etc. flowing out from the water storage tank, and a power supply control for controlling the electric power supplied to the suction pump according to the flow velocity value from the flow meter An apparatus for detecting an abnormality in a circulating water tank, comprising: (2) The abnormality detection device for a circulating water tank according to (1), wherein the power supply control unit stops the supply of the electric power to the suction pump when the flow velocity value changes. (3) The abnormality detection device for a circulating water tank according to (1), wherein the power supply control unit intermittently supplies the electric power to the suction pump when the flow velocity value changes. (4) The abnormality detection device for a circulating water tank according to (1), wherein the power supply control unit reduces and supplies the electric power to the suction pump when the flow velocity value changes. (5) Any one of (1), (2), (3) or (4) is characterized in that the flow meter communicates the flow velocity value to the power supply control section using a wireless communication means. An abnormality detection device for a circulating water tank as described in. (6) The flow meter notifies the outside that the flow velocity value has changed as a warning (1),
An abnormality detection device for a circulating water tank according to any one of (2), (3) and (4). (7) The power supply control unit receives a change in the flow velocity value from the flow meter and notifies the outside as a warning, according to (1), (2), (3) or (4). An abnormality detection device for a circulating water tank according to any one of the above.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION An abnormality detecting and detecting apparatus for a purified water tank according to the present invention will be described below with reference to FIG. In this figure, a water tank 1 is a swimming pool, a bathhouse, various water storage facilities, and the like, and stores water, hot water, liquid, and the like. This water tank 1
Is provided with a suction port 2 on the inner bottom surface or side surface, and the water in the water tank 1 is
The hot water and the liquid are sent to the purifying device 5 such as a filtering device. Then, the water, hot water, and liquid purified by the purifying device 5 are returned to the water storage tank 1 again by the pipe 32, the discharge pump 6, and the discharge port 7.

A feature of the circulating water tank abnormality detecting device of the present invention is that a flow meter 8 is provided between the suction port 2 of the water storage tank 1 and the suction pump 4. As the flow meter 8, for example, an electromagnetic flow meter capable of detecting the flow rate without disturbing the flow in the pipe 31 is suitable.

A power control unit 9 is installed in the suction pump 4. This power supply control unit 9 is connected to a power supply 10 for operating the suction pump 4 and a flow meter 8, and when the flow velocity value detected by the flow meter 8 maintains a predetermined (constant) value,
Electric power from the power supply 9 is supplied to the suction pump 4 so that the suction pump 4 operates normally.

On the other hand, when the flow velocity value of the flow meter 8 is less than a predetermined (constant) value (the flow velocity is slow), the power supply from the power source 10 to the suction pump 4 is stopped or turned on / off to turn the suction pump 4 on. Control to stop or operate intermittently.

Next, the operation of the abnormality detecting device for the purifying apparatus of the present invention having such a configuration will be described. If there is no abnormality in the water tank 1, the operation of the suction pump 4 causes the water tank 1
Water, hot water, liquid, etc. from the suction port 2 is sent to the purifying device 5 through the pipe 31, and after the purifying process, the purified water and hot water are purified from the pipe 32 and the discharge port 7 by the operation of the discharge pump 6.
The liquid is returned to the water storage tank 1.

At this time, the flow velocity value in the flow meter 8 monitoring the flow velocity of water, hot water, liquid, etc. flowing in the pipe 31 is
It is known in advance and is almost constant.

On the other hand, when a part of the human body or some obstacle is near the suction port 2 of the water tank 1, that is, when a person or an object is sucked into the suction port 2 to cause an accident, Suppose that a failure is likely to occur.

In such a case, normal suction operation of normal water, hot water, liquid or the like from the suction port 2 is not performed, and the flow in the pipe 31 becomes slow. That is, pressure loss occurs with respect to the flow in the pipe 31.

In response to this, the flow velocity value detected by the flow meter 8 also changes (becomes slower), and this detected value is sent to the power supply controller 9. Receiving this notification, the power supply control unit 9 stops the power supply to the suction pump 4, or intermittently operates the suction pump 4 by supplying the power on / off. Or
The power of the suction pump 4 may be reduced by reducing the power supply voltage.

As a result, the suction pressure at the suction port 2 disappears, is turned on and off, and is reduced, and during this period, a person or an object in a dangerous state who is likely to be sucked into the suction port 2 can be evacuated to a safe position. it can.

At this time, the flow velocity value change information A from the flow meter 8 to the power supply control unit 9 may be wireless communication device instead of wired communication. This eliminates the need to lay cables around the purified water tank shown in this figure.

Further, the flow meter 8 may communicate the change information of the flow velocity value as an abnormal signal AL1 of the water tank 1 to the outside of the apparatus by wire or wirelessly.

Furthermore, the power supply control circuit 9 which has received the flow velocity value change information A of the flow meter 8 may communicate the abnormality signal AL2 of the water tank 1 to the outside of this apparatus by using a cable or wireless. .

[0021]

As described above, according to the abnormality detecting device of the purifying device of the present invention, it is possible to detect a state in which a person or an object cannot be separated from the suction port of the water tank, and People and objects can be evacuated.

If a wireless communication device is used for the flowmeter or the power supply controller, it is not necessary to lay cables around the device.

[Brief description of drawings]

FIG. 1 is a configuration block diagram of an abnormality detection device for a purified water tank according to the present invention.

[Explanation of symbols]

1 water tank 2 Suction port 31,32 pipe 4 suction pump 5 Purification device 6 discharge pump 7 outlet 8 flow meter 9 Power control unit 10 power supplies

Claims (7)

[Claims] 1. An abnormality detecting device for a circulating water tank, comprising a purifying device, for monitoring an abnormality of the circulating water tank for circulating water, hot water, liquid, etc. stored in the water tank, wherein the water in the water tank is
A suction pump that sends hot water, liquid, etc. to the purification device, a flow meter that detects the flow velocity of water, hot water, liquid, etc. flowing out of the water tank, and supplies the suction pump according to the flow velocity value from the flow meter. An apparatus for detecting abnormality in a circulating water tank, comprising: a power supply control unit that controls electric power. 2. The abnormality detecting device for a circulating water tank according to claim 1, wherein the power supply control unit stops the supply of the electric power to the suction pump when the flow velocity value changes. 3. The abnormality detecting device for a circulating water tank according to claim 1, wherein the power supply control unit intermittently supplies the electric power to the suction pump when the flow velocity value changes. 4. The abnormality detecting device for a circulating water tank according to claim 1, wherein the power supply controller reduces and supplies the electric power to the suction pump when the flow velocity value changes. 5. The flow meter communicates the flow velocity value to the power supply control section by using a wireless communication means, according to claim 1, claim 2, claim 3 or claim 4. An abnormality detection device for a circulating water tank according to any one of the above. 6. The flowmeter according to claim 1, wherein the flowmeter notifies the outside that the flow velocity value has changed, as a warning. Abnormality detection device for circulating water tank. 7. The power supply control unit, in response to a change in the flow velocity value from the flow meter, notifies the outside as a warning, claim 1, claim 2, claim 3 or claim. The abnormality detection device for a circulating water tank according to any one of 4 above.