JPS62189393A - Accumulatively/pumping/feeding device - Google Patents

Abstract

PURPOSE:To eliminate the need of elevating a high-positioned water tank itself to install and to contrive to prevent the impossibility in feeding and facilitate the implementation work by arranging the constitution in such a way that an accumulating tank may be connected with a high-positioned water tank through the second pumping pipe and a pressure holding device and then pressured feeding and gravity feeding may be jointly used. CONSTITUTION:When water is used through an accumulating feed pipe 5, the pressure and the water level inside an accumulating tank 4 are lowered and it is detected by a detector 12 provided near the accumulating tank 4 and a group of pumps 2 are operated to pump up water into the accumulating tank 4 through the first pumping pipe 3. As a result, it returns to the former condition and the pressure can be maintained above the specific value. And when water is fed from a high-positioned water tank 8, water is pumped out from the accumulating tank 4 to the high-positioned water tank 8 through the second accumulating pumping pipe 6 and a pressure holding device 7, therefore a group of pumps 2 are also operated by detectors 12, 13 and the pressure is held above the specified pressure by the pressure holding device 7 and gravity pumping from the high-positioned water tank 8 becomes possible. Hereby the high-positioned water tank 8 itself is not required to elevate to install and it is made possible to prevent the impossibility in feeding and facilitate the implementation work.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a water supply device that pumps water from a water tank using a pump and supplies the water, and particularly relates to a pressure pumped water supply system that combines a pressure storage tank and an elevated water tank. It is related to the device.

(Prior Art) Water supply devices that pump water from a water tank using a pump and supply water include a single-gravity water supply device and a pressurized water supply device.

As shown in FIG. 2, the gravity type water supply device pumps water in a water tank 20 through a pump group 21 and a pumping pipe 22 to an elevated water tank 23 installed at a high position, and also pumps water into the elevated water tank 23. A water supply pipe 24 is connected to supply water from an elevated water tank 23 by gravity, and a water level detector 25 controls the pump group 21.

On the other hand, the pressurized water supply device has a water receiving tank 30 as shown in Fig. 3.
Water is stored under pressure in a pressure accumulation tank 32 via a pump group 31, and water is supplied via an accumulation water supply pipe 33 using the pressure, and the pump group 31 is controlled by a pressure or water level detector 34. It's like that.

(The problem that the invention is trying to solve) However, 1. The gravity type water supply system shown in L has the advantage of being able to supply water to the capacity of the elevated water tank even in the event of a pump failure or power outage, as well as being able to use a pump with a relatively small capacity. There are problems such as the need to install the

In addition, while pressurized water supply devices do not require the water tank to be raised to a high height, they also have problems such as being unable to supply water in the event of a pump failure or power outage, and requiring a large-capacity pump, which is uneconomical. .

An object of the present invention is to provide a pressure-accumulating pumped water supply system that can solve the problems of the above-described water resupply system.

(Means for Solving the Problems) In order to achieve the above object, the present invention makes it possible to supply water from two water tanks to a pressure storage tank via a pump and a first pressure storage water pipe, and to supply pressure storage water to the first pressure storage water pipe. In addition to connecting a pipe, an elevated water tank is connected to the pressure accumulation tank via a second pressure accumulation pumping pipe and a pressure holding device, and a water supply pipe is connected to the elevated water tank.

(Function) As shown in ``--, water is pumped to the pressure storage tank via the first pressure storage pipe, and water is also pumped from the pressure storage tank to the elevated water tank via the second pressure storage pipe, and the pressure storage tank and the elevated water tank are Since water can be supplied through the pressure accumulation water supply pipe and water supply pipe, respectively, if wood is used in the pressure accumulation water supply pipe, this will be detected by the pressure accumulation tank, and the pump will be activated to restore the original state and reduce the pressure. can be kept above a certain level.

On the other hand, when water is used in the water supply pipe, the elevated water tank is detected, the pump is activated, and the water is supplied through the pressure storage pumping pipe, pressure storage tank, and pressure holding device to restore the original state. . Therefore, water can be supplied by pressurized water and heavy water from both the pressure water supply pipe and the water supply pipe.

(Example) A preferred example of the present invention will be described below based on FIG. 1.

1 is a water receiving tank, 2 is a pump group, 3 is a first pressure accumulation pipe, and 4 is a pressure accumulation tank, so that water can be pumped to the pressure accumulation Jtj 4 via the pump group 2 and the first pressure accumulation water pipe 3.

5 is a pressure accumulation water supply pipe connected to the first pressure accumulation water pumping pipe 3.

6 is a second pressure accumulating water pipe, 7 is a pressure holding device, 8 is an elevated water tank, and 41f of elevated water! 8, water is pumped from the pressure storage tank 4 via the second pressure storage pumping pipe 6 and the pressure holding device 7.

9 is a water supply pipe connected to the elevated water tank 8.

A water supply pipe 10 connects the water supply pipe 9 and the pressure accumulation water supply pipe 5 and has a backflow prevention device ff1ll.

12.13. i4 is pressure storage tank 4. 2nd pressure accumulation pumping pipe 6. Detectors provided in the elevated water pumps 4 and 8 respectively detect the pressure, water level, leakage, etc. in the tank or pipe to control the operation and stop of the pump group 2.

According to the embodiment configured as described above, when water is used in the pressure accumulation water supply pipe 5, the pressure or water level in the pressure accumulation tank decreases, and this is detected by the detector 12 provided in the pressure accumulation tank 4. and pump n2 is activated. When the pump group 2 is operated, water is pumped into the pressure storage tank 4 via the first water pumping pipe 3, returning to its original state and maintained at normal pressure. In this way, pressurized water can be supplied from the pressure storage tank.

On the other hand, when water is used in the water supply pipe 9, the water level or pressure in the elevated ice tank decreases, this is detected by the detector 14, and the pump 2 is activated. Therefore, the first pumped water Ir:”
*Pressure tank 4. The water is pumped to the elevated water tank 8 via the second pressure storage pumping pipe 6 and the pressure holding device 7, and is returned to its original state.

In addition, 4'l of high water! When water is supplied from the detector 12.58, the water is pumped from the pressure storage tank 4 to the elevated water tank 8. l: The pump group 2 is also activated by l, and the pressure holding device 7
The pressure is always maintained at a constant pressure or higher. In this way, water can be supplied by gravity from the elevated water tank 8. Also, when the pump group 2 breaks down or there is a power outage, only a small amount of water can be supplied to the pressure-accumulated water supply pipe 5 due to the pressure accumulated, but since the water supply pipe 10 and backflow prevention device 11 are installed, the Water can be supplied from the water tank 8.

Note that the water supply pipe 10 and the backflow prevention device 11 may not be provided if there is no need to supply water from the pressure accumulation water supply pipe 5 at the time of a failure of the pump group or a power outage.

(Effects of the Invention) As detailed above, according to the present invention, the pressure storage tank and the elevated water tank are connected by VC via the second pumping pipe and the pressure holding device, and pressurized water supply and gravity water supply are used together. Because I am doing this,
The elevated water tank itself does not need to be raised as high as a conventional gravity-type water supply system, and can be easily and inexpensively constructed. Since water can be supplied from an elevated water tank, there is no possibility that the water supply will be unavailable. In addition, compared to the conventional pressurized water supply system, it is possible to reduce the pump capacity by using an elevated water tank, and it is possible to reduce the pump capacity to a single pump, which is equivalent to or smaller than a gravity type water supply system. . Therefore, it is possible to achieve great effects such as saving energy and reducing operating noise.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram showing an embodiment of the present invention. FIGS. 2 and 3 are configuration diagrams showing different conventional examples. l... water tank, 2... pump. 3... First pressure accumulation pumping pipe, 4... Pressure accumulation tank. 5...Accumulation pressure water supply pipe, 6...Second pressure accumulation wood pipe. 7...Pressure holding device, 8...Elevated water tank. 9... Water supply pipe, 10... Water supply pipe. 11... Backflow prevention device, 12. II, +4...
Detector.

Claims (3)

[Claims] (1) Water can be supplied from the water receiving tank to the pressure storage tank via the pump and the first pressure storage pumping pipe, and the pressure storage water supply pipe is connected to the first pressure storage pumping pipe, and the second pressure storage pumping pipe and pressure maintenance are connected to the pressure storage tank. An accumulating water pumping device characterized in that an elevated water tank is connected through the device, and a water supply pipe is connected to the elevated water tank. (2) The operation of the pump is controlled by the pressure or water level in the pressure storage tank, the ice floe or pressure in the second pressure storage pumping pipe, and the pressure or water level in the elevated water tank. The pressure-accumulated pumped water supply device according to item 1. (3) The pressure-accumulated pumped water supply system according to claims 1 and 2, characterized in that an auxiliary water supply pipe having a backflow prevention device is connected between the water supply pipe and the pressure-accumulated water supply pipe. .