JP5161377B1 - Sprinkler - Google Patents

Abstract

As a countermeasure against global warming in summer, it is possible to sprinkle a small amount of water for a long period of time, and to spray water with a more stable energy amount than using a well pump.
SOLUTION: A compressed water tank 30 is pressurized with compressed air adjusted to a constant pressure from a compressed air tank 20 by a pressure reducing valve 22 from a compressed air tank 20, water is discharged from the water storage tank 30, and the flow rate is gated. It is a watering device that adjusts with a valve 32 or the like and sprays water with a watering device 40.
[Selection] Figure 1

Description

  The present invention relates to a watering method capable of performing watering appropriately by the expansion force of pressurized air.

Water has been sprayed to cool down roads, entire houses and roofs for a comfortable 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 with a hydraulic pump, the pump consumes a large amount of electricity and costs, 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 than the desired amount of water is used.

  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 source and communicates with the pressure tank and the spray nozzle.

JP 2006-170082 A

Utility model document 2

Japanese Utility Model Publication No. 6-050479

  However, in the apparatus according to the proposal of the above-mentioned Patent Document 1 and the watering method using the apparatus, the amount of water used is too much and may be a place where groundwater can be used. There were problems from the viewpoint of securing water resources, electricity usage, and water usage. 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 enclosing chamber, the pressure of the encapsulated liquid is limited by the strength of the pressure tank. Producing a tank 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 aims to discharge the water by discharging compressed air into the stored pressurized container within a range where the pressure in the container is not so high. As a result, the present invention has been completed.
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. Pressurized air is pressurized to the water storage tank with a pressure reducing valve within a range of 0.02 to 0.2 MPa, and the water storage tank and gate Sprinkle with a watering device connected with a valve. At that 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 for a long 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.

Drawing 1 is a mimetic diagram showing the outline of the whole 1 embodiment of the watering device of the present invention. Drawing 2 is a mimetic diagram showing the outline of the whole 2 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.

Watering device 1; Watering device 2; Compressor 10; Compressed air tank 20; Water tank 30; Watering device 40; Check valve 21; Pressure reducing valve 22; Valve 31; Piping 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
A watering device 1 of this embodiment shown in FIG. 1 includes a compressor 10 that generates compressed air, a pressure tank 20 for compressed air that is connected to the compressor 10, and a water storage tank 30 that is connected via a pressure reducing valve 22 and a gate. It consists of a watering device 40 connected through a 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 through a valve 31, and 30 and a compressed air tank 20 and a valve pressurized by the water pressure. It connects via 33. 20 and a water storage tank 30 connected through a pressure reducing valve 22 and a watering device 40 connected through a gate valve 32 or the like.

In the watering device 1 of this embodiment, the compressor 10 can use what is normally used when compressing and transferring air, without a restriction | limiting. Human powered air compressors can also be used. In the sprinklers 1 and 2, the compressed air 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 composed of a pressure-resistant container, a compressed air inlet 55 and a compressed air outlet 58 provided at the upper part of the main body 30, and is provided at the lowermost part of the main body 30. The water supply port 56 and the water discharge port 57 are provided.
The main body 30 is a hollow pressure-resistant container, and is provided with valves 31, 32, 33, 34 for opening and closing each opening, and these are normally used when compressing and transporting air. A thing can be used without a restriction | limiting in particular. The pressure reducing valve 22 and the check valve 34 provided at the compressed air inlet 55 are connected to the compressed air tank 20 via the pipes 53, 54, and 55. A valve 31 provided in the water supply port 56 is connected to a water supply source (not shown) such as a water supply or a hydraulic pump through a pipe 61. The gate valve 32 is connected to the watering device 40 via pipes 57 and 60. Each valve 31, 32, 33, 34 has a built-in valve mechanism that is not shown, but can be freely opened and closed so that the inside of the main body can be held in a pressurized state during opening and closing.

As for 30 volumes of a main part, it is preferable that the sprinkler 1 is 50-1000 liters.
The sprinkler 2 is preferably 20 to 200 liters.
The compressed air tank 10 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 the piping made of iron or vinyl chloride. In particular, as the pipe 60, it is preferable to use a flexible vinyl hose or the like.
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-like watering device, etc. can 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 compressed air whose pressure is adjusted is injected into the water storage tank 30 to pressurize the water storage tank 30, and water is discharged from the water discharge port 57 and sprinkled. A pressure watering process is performed.

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, the input amount is preferably 1/3 to 10/10 of the internal volume of the main body 30 in terms of effectively discharging water and allowing water spraying.

  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 inside of the compressed air tank 20 connected to the valve 33. Pressurize the air. 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 terms of effectively discharging water and allowing 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 to the ratio from the compressed air tank 20 via the pressure reducing valve 22 is pressurized to the water storage tank. At this time, the compressed air is supplied by 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 a certain internal force 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-mentioned watering device as described above, it is possible to perform watering 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. Can be sprinkled.
Further, 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 the water storage process is stored in a water storage tank using a conventional water supply and a hydraulic pump, etc., but the watering process uses the expansibility of compressed air to spray water. The feature is to pressurize the water with a relatively low air discharge pressure, and various modifications can be made without departing from the spirit of the present invention.

  EXAMPLES Hereinafter, although an Example is shown and this invention is demonstrated in detail, this invention is not restrict | limited to these.

A household compressor produced 20 liters of 0.76 MPa compressed air. The amount of power used was 0.025 kWh.
Separately, 100 liters of water was put into a main body having a cross-sectional area of 1075 cm ² and a capacity of 116 liters (water storage step).
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. The pressure inside the main body of the container at that time was 0 0.05 MPa.
Next, the water outlet valve was opened to adjust the amount of water and spray water.
As a result, watering for 70 minutes or more could be performed.
Separately, water was poured into a full 116 liter body (water storage process), and water was sprayed in the same manner. The power consumption of the compressor was 0.037 kwh, and water was sprayed for more than 80 minutes. I was able to.

Using the same main body as in Example 1, 115 liters of water was introduced into the main body in the water storage step, the valve at the water inlet was closed, and then 0.08 MPa of compressed air was introduced into the main body. Water was sprayed on the roof through a watering device installed on the roof with the outlet valve open. 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 L of water is pumped with a normal deep well pump, 0.075 kwh is consumed if pumped in about 4 minutes, and 0.32 kwh is consumed in about 32 minutes. As is clear from this comparison, the watering method of the present invention is also advantageous from the viewpoint of power consumption.

  The watering method of the present invention can stably spray water for a long time with power saving because water is pushed out by air pressure, and can be applied to roofing watering devices for household, industrial facilities, dairy facilities, watering systems for home gardens, parking lots, etc. It is suitable as a mist watering device.

Claims (1)

Compressed air, which is adjusted to a constant pressure within a pressure range of less than 0.02 to 0.2 MPa by a pressure reducing valve 22 or the like from a pressure tank 20 for compressed air, 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.

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