WO2013111678A1

WO2013111678A1 - Water-sprinkling device

Info

Publication number: WO2013111678A1
Application number: PCT/JP2013/050909
Authority: WO
Inventors: 清治布施; 康治渡邊
Original assignee: FUSE Seiji; Watanabe Yasuji
Priority date: 2012-01-27
Filing date: 2013-01-18
Publication date: 2013-08-01
Also published as: JP2014132133A; JP5161377B1

Abstract

[Problem] When sprinkling a small volume of water over a long period for cooling by water evaporation or the like to counteract warming in summertime, the problem addressed by the invention is to make it possible to sprinkle water with better energy-saving and a more stable water volume than when using a well pump. [Solution] A water-sprinkling device that: pressurizes a tightly sealed water storage tank (30) with compressed air from a compressed air pressure tank (20) adjusted to give a constant pressure using a reducing valve or the like (22); discharges water from the storage tank (30); adjusts the flow with a gate valve or the like (32); and sprinkles the water using a water-sprinkling tool (40).

Description

Sprinkler

This invention relates to the watering method which can perform watering moderately with the expansion force of pressurized air.

Water has been sprayed to cool down roads, entire houses, and roofs for a long time in the summer. In recent years, such sprinkling has been performed by mechanically watering tap water. Such mechanical watering is often performed in fields.
Such mechanical sprinkling is performed so that a desired watering effect can be obtained while suppressing the amount of water sprayed by sprinkling a small amount of water for a long time. Specifically, there are watering by a hydraulic pump and watering performed using the water supply as it is.
However, when water is sprayed by a hydraulic pump, the electric consumption of the pump is large and costs are high, and when a hydraulic pump is used to spray a small amount of water, the load on the pump increases, resulting in an increase in pump failure. Also, in the method of direct watering using the water supply as it is, there is a risk of water leakage if the strength of the pipe is not increased, and it is difficult to adjust the amount of water, and as a result it can be maintained at a very small amount of spraying. Therefore, a larger amount of water is used than desired.

Patent Document 1 proposes an apparatus and method for storing groundwater pumped up in a tank made of a pressure vessel and spraying water by injecting compressed air into the tank to push the water in the tank to the outside. .

The utility model document 2 includes a communication means for separating the inside of a pressure tank into a compressed air accumulator chamber and a spray medium enclosure chamber, and supplying compressed air in the spray medium enclosure chamber from the accumulator chamber to the spray medium enclosure chamber at a constant pressure. There has been proposed a spraying device that includes a pressure tank provided and a compressor that is driven by a vehicle power supply, and that communicates the pressure tank with an injection nozzle. *

Patent Document 1
JP 2006-170082 A

Utility model literature

Utility model document 2
Japanese Utility Model Publication No. 6-050479

However, in the device according to the proposal of the above-mentioned Patent Document 1 and the watering method using the device, the amount of water used is too much and may be a place where groundwater can be used. There was a problem from the viewpoint of securing water resources, electricity usage, and water usage due to excessive increase. For this reason, the present condition is that development of the watering apparatus and the watering method which can perform sufficient watering with low power consumption and a small amount of water use is demanded.

In addition, since the spraying device of Utility Model Document 2 is a spraying device that uses a single pressure tank divided into a compressed air accumulator chamber and a spray medium entrance chamber, the pressure tank is restricted by the strength of the pressure tank, and a pressure tank with a large capacity of the sealed liquid is used. Producing it is expensive and unsuitable for practical use. A method of accumulating compressed air using an electric compressor is also effective, but a method of accumulating compressed air using a human-powered air compressor or water pressure is also effective for the watering device.

Accordingly, an object of the present invention is to provide a watering device that can perform sufficient watering with low power consumption and a small amount of water used.

As a result of intensive studies to solve the above-mentioned problems, the present inventor has said that if the compressed air is introduced into the stored pressurized container and the water is discharged within a range where the pressure in the container is not so high. The inventors have found that the object can be achieved and have completed the present invention.
That is, the present invention provides the following watering device.
Compressed air pressure tank and water storage tank are connected via a pressure reducing valve, etc., and pressurized water with a constant pressure in the range of 0.02 to less than 0.2 MPa is pressurized to the water storage tank by the pressure reducing valve. Water is sprayed with a watering device connected with a tank and a gate valve. At this time, the amount of water is mainly adjusted by a gate valve or the like, but the pressure of pressurized air is adjusted as necessary.

The watering device of the present invention can sprinkle water over a long period of time with a small amount of energy consumption and a small amount of water. This sprinkler can easily create a water pressure lower than the water pressure of the water supply, and will not sprinkle more water than necessary. In addition, if you store water in a water storage tank and store compressed air in a pressure tank for compressed air, you can spray water regardless of whether you have water or electrical facilities.

FIG. 1 is a schematic diagram showing an outline of an entire embodiment of the watering apparatus of the present invention. FIG. 2 is a schematic diagram showing an outline of the entire embodiment of the watering device of the present invention. FIG. 3 is a longitudinal sectional view showing the internal structure of the water storage tank of FIGS. 1 and 2.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
A watering device 1 according to this embodiment shown in FIG. 1 includes a compressor 10 that generates compressed air, a compressed air pressure tank 20 that is connected to the compressor 10, and a water storage tank 30 that is connected via a pressure reducing valve 22 or the like. It consists of a watering device 40 connected through a gate valve 32 or the like.

A watering device 2 of the present embodiment shown in FIG. 2 supplies water to a water storage tank 30 from a water supply or a water pressure pump via a valve 31 or the like, 30 and a pressure tank 20 for compressed air pressurized by the water pressure. They are connected via a valve 33 or the like. 20 includes a water storage tank 30 connected via a pressure reducing valve 22 and a watering device 40 connected via a gate valve 32.

In the watering device 1 according to the present embodiment, the compressor 10 can be used without particular limitation what is normally used when air is compressed and transferred. Human powered air compressors can also be used. In the

sprinklers

1 and 2, the compressed air pressure tank 20 includes a compressed air supply port 52 and a compressed air discharge port 53. As the check valve 21 and the pressure reducing valve 22 for supplying a constant pressure, those normally used when compressing and transferring air can be used without particular limitation. As shown in FIG. 3, the water storage tank 30 includes a main body 30 formed of a pressure vessel, a compressed air inlet 55 and a compressed air discharge port 58 provided at the upper portion of the main body 30, and a water supply provided at the lower portion of the main body 30. A mouth 56 and a water outlet 57 are provided. The main body 30 is a hollow pressure-resistant container, and each opening has

valves

31, 32, 33, and 34 that can be freely opened and closed, which are normally used when air is compressed and transferred. Can be used without particular limitation. The pressure reducing valve 22 and the check valve 34 provided at the compressed air inlet 55 are connected to the compressed air pressure tank 20 via

pipes

53, 54, and 55. A valve 31 provided at the water supply port 56 is connected to a water supply source (not shown) such as a water supply or a hydraulic pump via a pipe 61. The gate valve 32 is connected to the watering device 40 through

pipes

57 and 60. Each

valve

31, 32, 33, 34 has a built-in valve mechanism that can be freely opened / closed (not shown), and can hold the inside of the main body in a pressurized state during opening / closing.

The capacity of the main body 30 is preferably 50 to 1000 liters for the watering device 1. The watering device 2 is preferably 20 to 200 liters. The pressure tank 20 for compressed air is preferably 10 to 40 liters.

The

piping

51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61 used in the present embodiment uses a flexible plastic hose in addition to piping made of iron or vinyl chloride. In particular, it is preferable to use a flexible vinyl hose or the like as the pipe 60. As the watering device 40, a device configured such that three nozzles are rotated by water pressure, such as a rotary sprinkler described in JP-A-06-182266, can be used. Moreover, a watering tube, a mist watering device, etc. can also be used.

And the watering method of this invention can be implemented as follows using the said watering apparatus. That is, a water storage process for storing water in the water storage tank 30, and pressurization for injecting compressed water with pressure adjusted into the water storage tank 30, pressurizing the water storage tank 30, discharging water from the water discharge port 57 and sprinkling water Perform watering process

This will be described in more detail below. The water storage process of the watering device 1 of FIG. 1 is performed by opening the valve 33 to the atmosphere with the

valves

32 and 34 closed, and supplying water from the valve 31 with tap water or a hydraulic pump. . At this time, it is preferable that the input amount is 1/3 to 10/10 of the internal volume of the main body 30 in order to effectively discharge water and perform watering.

In the water storage process of the watering device 2 in FIG. 2, water is supplied from the valve 31 with tap water or a hydraulic pump while the

valves

32 and 34 are closed, and the compressed air pressure tank 20 connected to the valve 33. Pressurize the air inside. Pressurize air while supplying water like a pressure tank of a well pump. At this time, the input amount is preferably 4/5 to 10/10 of the internal volume of the main body 30 in view of effectively discharging water and performing water spraying.

In the pressurized watering process, after the water storage process is completed, compressed water adjusted so that the pressure does not increase in proportion from the compressed air pressure tank 20 through the pressure reducing valve 22 or the like is pressurized to the water storage tank. At this time, the compressed air is supplied while adjusting the pressure in the main body 30 of the water storage tank to 0.02 to 0.2 MPa, preferably 0.05 to 0.12 MPa. Water is sprayed by a watering device 40 connected to the water storage tank 30 via a gate valve 32, etc., but the pressure is adjusted to be within the above range, and the gate valve 32 is adjusted to spray water with an appropriate discharge amount. It becomes possible to do. Moreover, when performing this process, it is preferable to introduce | transduce compressed air sequentially, monitoring an internal pressure with a pressure gauge so that the pressure inside the main body 30 may be in the above-mentioned range. And by discharging water from the main body 30 in this way, an appropriate amount of water is sprayed from the watering device 40.

By performing watering using the above watering device as described above, water can be sprayed for a sufficiently long time with the amount of water once accommodated in the main body 30, and it is effective while suppressing the amount of water and electricity used. Watering can be performed. In addition, the watering method of the present invention has an advantage that the amount of water sprayed can be easily adjusted by adjusting the pressure inside the gate valve 32 and the main body 30.

The watering method of the present invention is characterized in that water is stored in a water storage tank using a conventional water supply and water pressure pump in the water storage process, but the watering process uses the expandability of compressed air. Another feature is that the compressed air discharge pressure is increased within a relatively low range. Various modifications can be made without departing from the spirit of the present invention.

Hereinafter, the present invention will be described in detail with reference to examples, but the present invention is not limited thereto.

20 liters of compressed air of 0.76 MPa was produced with a household compressor. The amount of power used at that time was 0.025 kwh. Separately, 100 liters of water was put into a water tank body having a cross-sectional area of 1075 centimeters and a capacity of 116 liters. Next, the valve of the water inlet was closed, and the obtained compressed air was injected into the gap formed in the upper part of the main body to pressurize the main body. At this time, the pressure inside the main body of the container was 0.05 MPa. Met. Next, water was adjusted by opening the water outlet valve and adjusting the amount of water. As a result, watering for 70 minutes or more could be performed. In addition, when water was poured into the 116 liter water tank body and water was sprayed in the same manner, the power consumption of the compressor was 0.037 kwh, and water could be sprayed for more than 80 minutes. did it.

Using the same water tank main body as in Example 1, 115 liters of water was introduced into the water tank main body in the water storage process, the water inlet valve was closed, and 0.08 MPa of compressed air was then supplied to the water tank main body. The roof was sprinkled through a watering device installed on the roof with the water outlet valve opened. When one sprinkler as a watering device was provided, watering could be performed for about 50 minutes. In addition, when two sprinklers were provided, watering could be performed for about 25 minutes. The amount of power used at this time was 0.060 kwh. When 115 liters of water is pumped with a normal deep well pump, 0.075 kwh power is consumed if pumped in about 4 minutes, and 0.320 kwh power is consumed if pumped in about 32 minutes. As is clear from this comparison, the watering method of the present invention is also effective from the viewpoint of power consumption.

The watering device of the present invention can stably spray water for a long time with power saving because it pushes out water by air pressure, and can be used for roofing watering devices for household, factory facilities, dairy facilities, watering systems for home gardens, parking lots, etc. It is suitable for a mist spraying device and other cooling devices in summer using the latent heat of vaporization of water.

1 Watering device 1
2 Water sprinkler 2
DESCRIPTION OF SYMBOLS 10 Compressor 20 Pressure tank for compressed air 30 Reservoir tank 40 Watering equipment 21/34 Check valve etc. 22 Pressure reducing valve etc. 31/33 Valve etc. 32 Gate bubble etc. 51/52/53/54/55/56/5758/59 / 60/61 piping

Claims

Compressed air adjusted to a constant pressure within a pressure range of 0.02 to less than 0.2 MPa from the compressed air pressure tank 20 by a pressure reducing valve 22 or the like is injected into a sealed water storage tank 30 to store water. A watering device that pressurizes the water in the tank 30, discharges the water from the water storage tank 30, adjusts the flow rate with a gate valve 32 or the like, and waters the watering device 40.