JPS596979B2 - Pump automatic water supply device - Google Patents

Description

[Detailed Description of the Invention] Conventionally, for water distribution in high-rise buildings and high-rise apartments, an elevated water tank is installed on the rooftop, and the water is pumped up from the ground via a pump and stored, and the water is introduced to each floor using the water head difference. However, there are problems such as insufficient water head difference on floors near Yaju, resulting in poor water flow and inconvenience in use.

The present invention aims to provide an automatic water maintenance device that eliminates the drawbacks of the conventional art, and an example of the implementation of the device of the present invention will be described below with reference to the drawings.

1 is a motor, 2 is a water pump, 3 is a water suction source, 4 is a water suction pipe, 5 and 6 are check valves and gate valves on the pump discharge pipe side, 7
8 is a pumping pipe, 8 is a pressure storage tank which is branched from the pumping pipe 7, and 9 is a pressure switch, which turns on when the pressure in the pressure storage tank 8 decreases, and connects the motor starter via a signal line 10. 11 is activated, the motor 1 is driven, the water pump 2 is activated, and water is pumped up from the water suction source 3 toward the water pump 7.

12 is an elevated water tank installed on the roof of Building H, 13
is also a pressure water tank, and the water from the pumping tank 7 flows into the tank 12 through an automatic valve 14 in the former, and the water flows into the tank 12 through a branch pipe 15 and a check valve 16 in the latter. It is designed to flow into the tank 13.

In the present invention, the elevated layer 12 is provided with a water level detector 17 for detecting an upper limit water level and a lower limit water level.
4 and is electrically connected via a control circuit 18.

In this case, 19 is a short electrode, and 20 is a long electrode.

Reference numeral 21 is a water pipe for conveying the water stored in the tank to the water supply equipment on each floor, and construction work is being carried out so that water is supplied from the tank to the lower floors except for the floor near the roof. is being done.

On the other hand, 22 is a pressure boat water pipe from the pressure water tank 13, and this pipe is constructed so that water can be introduced to the floors near the roof.

In addition, an auxiliary water supply pipe 23 is connected to the pressure water supply pipe 22 from the bottom of the elevated water tank 12 via a check valve 24, so that the water supply from the pressure water tank 13 is not temporarily insufficient due to an accident such as a power outage. If so, this can be supplemented with water.

Further, in the drawing, 25 is an overflow pipe provided in the elevated water tank 12, and 26 is a water introduction device in each floor.

Next, the effect will be explained.

Now, in the illustrated example, the other floors B, C, except the top floor A...
When the water supply equipment 26 of .

When the amount of water loss becomes less than the predetermined low line LWL, the long electrode 20 of the water level detector 17 moves away from the water surface and the control circuit 1
8 is activated, the automatic valve 14 is opened, and water flows into the tank.

This watering is carried out continuously by automatically activating the water pump 2 as already mentioned above.

Therefore, even if the water supply device 26 is blocked on the way, water continues to flow into the tank, and when the amount of water in the tank reaches the predetermined upper line HWL, the water level detector 11 When water comes into contact with the short electrode 19, the control circuit 18 is activated and the automatic valve 14 is closed.

In this case, the control circuit 18 is configured to self-maintain the operation of the automatic valve 14 when water flows between the short electrode 19 and the long electrode 20.

Next, when the gravure water appliance 26 on the top floor A is opened, water is restored from the pressure water tank 13 through the pressure water introduction pipe 22, and any water loss due to water loss in the tank is immediately supplemented. On the other hand, when water is supplied to the elevated water tank 12, the water pump is automatically operated.
By simultaneously inflowing water through the branch pipe 15 and the check valve 16, a constant amount of water is always stored under the required pressure.

The auxiliary water pipe 23 is used to supply water from the elevated water tank in order to supplement the above-mentioned situation when the water pump does not operate due to an accident such as a power outage.

In the above embodiment, the water level detector 17 has a short electrode 19 and a long electrode 2.
2A and 2B, the automatic valve 14 is operated by a float type switch 17', 27 is a float, 28 is a guide rod, 29 and 30 are used. 31 is a switch terminal, which is connected to the upper water level ring 2 of the guide rod 28 by the vertical movement of the float.
9 and the low water level ring 30, the automatic valve 14 is opened and closed as in the previous example.

As described above, the device of the present invention has an elevated water tank and a pressure water tank installed side by side, and pressure water is poured onto the upper floors where a sufficient difference in water head cannot be obtained from the elevated water tank. The water in the tank is effectively directed to the lower floors, which is a great solution to the conventional problem.

[Brief explanation of the drawing]

FIG. 1 is a semi-illustrative diagram of an example of an embodiment of the apparatus of the present invention, and FIG. 2 is a partial explanatory diagram showing another example of a water level detector, in which A indicates a low water level state and B indicates a high water level state. 1... Motor, 2... Water pump,
4... Water intake pipe, 12... Elevated water tank, 1
3... Pressure water tank, 14... Ripple water valve,
17...Water level detector, 18...Control circuit, 19...Short electrode, 20...Long electrode, 23...Auxiliary wire Water pipe, 26...Gravity equipment, 27...Float, 29...High water level ring, 30...Low water level ring.

Claims (1)

[Claims] 1. When supplying mineral water to high-rise buildings and high-rise apartments, an elevated water tank and a pressure water tank are installed side by side, a water level detector is installed in the elevated water tank, and a water pump is activated when the water level in the tank is at a predetermined low level. However, by making the water stop at a predetermined upper line, water is sent to the elevated water tank and the pressure water tank. On the other hand, this pump automatic water supply system is characterized in that the water stored in the pressure water tank is piped so that water is introduced exclusively to the upper floors.