JPH06193105A - Controlling method for water storage quantity - Google Patents

Abstract

PURPOSE:To prevent occurrence of dead water and make the concentration of residual chlorine uniform by making adjustment of water storage quantity possible in accordance with variation in quantity of water consumption. CONSTITUTION:The quantity of water consumption in a place whereto water is supplied is detected with a water gauge 17, and a specific quantity of water storage corresponding to the above-mentioned quantity of water consumption is set by a control device 21. Then, a control valve 19 of a feed pipe 15 for supplying water to a water tank 11 is controlled by a controller 21 for opening and closing, based on detection signals from a water level gauge 13 so that the water in the water tank 11 can be kept at a level corresponding to the specific quantity of the water storage.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water storage amount control method suitable for use in a water tank of a building.

[0002]

2. Description of the Related Art In a building of a certain scale, a water tank (water receiving tank) is provided for the purpose of, for example, securing a water storage amount when water is cut off, and this water tank is constantly filled with water by keeping the water level constant. FIG. 2 is a side view of a water tank for explaining a conventional water storage amount control method. The water supply pipe 3 is connected to the water tank 1, and the water supply pipe 3
Is opened and closed by the FM valve 5. A ball tap 7 is connected to the FM valve 5, and the ball tap 7 opens the FM valve 5 when the water surface falls below a predetermined water level. A water supply pipe 9 is connected to the water tank 1, and the water supply pipe 9 is piped to water supply destinations in various parts of the building. In the water tank configured in this way, when water is used at the water supply destination, the water level in the water tank 1 decreases, the ball tap 7 opens the FM valve 5, and water supply is started. When the water level again reaches a predetermined water level (full surface) by water supply, the ball tap 7 closes the FM valve 5 and the water supply is stopped. Therefore, the water level is controlled so that the water level is always full.
Is always full when the water supply is stopped, regardless of the amount of water used.

[0003]

By the way, the amount of water used in a building changes day by day and season by holidays, long vacations, and seasonal changes in makeup water for air conditioning. However, in the conventional water storage control method, the water level is controlled at the full surface, so the water tank is always full, and if the amount of water used is small, the stored water will stay for a long time, resulting in dead water and residual chlorine concentration. There was a problem that water quality deteriorates due to non-uniformity. The present invention has been made in view of the above circumstances, and an object thereof is to provide a stored water amount control method capable of varying the stored water amount in accordance with changes in the amount of water used, aiming at preventing dead water and making the residual chlorine concentration uniform. To do.

[0004]

To achieve the above object, the structure of a water storage amount control method according to the present invention is a water storage amount control method for a water tank in which water is temporarily stored. A control valve for the water supply pipe that detects and sets a specific amount of water storage corresponding to this amount of water used, and supplies water to the water tank based on the detection signal from the water level gauge so that the water tank has a water level equivalent to this amount of water storage. Is controlled by a control device.

[0005]

[Function] The water level is automatically changed and set in accordance with the change in the amount of water used. For example, on days when the amount of water used is small, the stored water amount in the water tank is maintained at a low water level, and the residence time of the water supply in the water tank is constant. It becomes short time, and long-term retention of stored water disappears.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a water storage amount control method according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is a side view of a water tank for explaining the water storage amount control method of the present invention. Aquarium 1
1, a water level gauge 13 is attached, and the water level gauge 13 is a water tank 1.
The water surface (water level) in 1 can be electrically detected. A water supply pipe 15 is provided in the water tank 11, and the water supply pipe 15 supplies water to the water tank 11. A water meter 17 is attached to the water supply pipe 15, and the water meter 17 can electrically detect the amount of water supplied. Since the amount of water supplied to the water tank 1 is equal to the amount of water supplied from the water tank 1, if the amount of water supplied is detected by the water meter 17, the amount of water used at the water destination is also detected. A control valve 19 is attached to the water supply pipe 15, and the control valve 19 is opened / closed by a control signal from a control device described later. A control device 21 is connected to the water level gauge 13, the water meter 17, and the control valve 19, and the control device 21 controls the control valve 19 based on the water level detection signal from the water level meter 13 and the water supply amount measurement signal from the water meter 17. It is designed to open and close.

Now, the water level control operation of the control device 21 will be described. The control device 21 has a schedule function and a learning function, and controls the water level by the schedule function and the learning function and the signals from the water level gauge 13 and the water meter 17. The schedule function has a holiday mode and a season mode. In the holiday mode, by designating a holiday (Saturdays, Sundays, long vacations, holidays, etc.) in the schedule stored in the control device 21, the water storage amount in the water tank 11 becomes the minimum necessary on the day before the holiday. The water level is set automatically. During the holidays, keep the water level as it is,
The control valve 19 is controlled and the stored water amount is kept small. Therefore, the usage rate of the stored water is high and long-term retention is eliminated. Then, at the end of a holiday, the water level is controlled so that the water storage amount in the water tank becomes a required predetermined amount immediately before use.
1 automatically changes and sets the water storage amount. In addition, in the season mode, the water level is automatically set by the control device 21 so that the amount of water used is different for each season such as summer, intermediate season, and winter.

Further, in the learning function, when the amount of water used is different depending on the business day of the tenant or the like other than the holiday / season mode, the control device 21 detects and stores (learns) the state of change of the amount of water used from the water meter 17. Control device 2
In the first method, the required amount for the next week is estimated, and a predetermined water level is automatically set. For example, when the amount of water used on a particular day is large, the amount of water increase is calculated based on the water supply amount measurement signal from the water meter 17, and on this particular day, the water level for the amount of water increase is raised and automatically set.

As described above, in the above-mentioned stored water amount control method, the water level is automatically set and the stored water amount is automatically adjusted in accordance with the change in the used water amount, so that the retention time of the water supply in the water tank 11 is short. It becomes time, and long-term retention of stored water is prevented. Also,
If this storage amount control method becomes popular, a uniform chlorine concentration will always be maintained, so that a reduction in the chlorine concentration in tap water can be expected, and water with a low chlorine odor can be supplied.

[0010]

As described in detail above, according to the method for controlling the amount of stored water according to the present invention, since fresh water is always stored, dead water does not occur in the water tank, and the concentration of residual chlorine is not increased. Can also be uniform.

[Brief description of drawings]

FIG. 1 is a side view of a water tank for explaining a water storage amount control method of the present invention.

FIG. 2 is a side view of a water tank for explaining a conventional water storage amount control method.

[Explanation of symbols]

 11 Water Tank 13 Water Level Meter 15 Water Supply Pipe 17 Water Meter 19 Control Valve 21 Control Device

Claims (1)

[Claims] 1. A method for controlling the amount of water stored in a water tank for temporarily storing water to be sent, wherein the amount of water used at the water destination is detected by a water meter, and a specific amount of water stored corresponding to the amount of water used is set, and the water tank holds the stored water. A method for controlling the amount of stored water, wherein a control device controls opening and closing of a control valve of a water supply pipe that supplies water to the water tank based on a detection signal from a water level gauge so that the water level corresponds to the amount.