KR20190133810A - Irrigation management appratus using pressure difference - Google Patents

Abstract

The present invention relates to a field of an irrigation device and, more specifically, to an absorption amount control device including: a reservoir (100) which has a space for storing a water body; a suction tube (110) which provides a moving path of the water body by being extended from the upper side of the reservoir to the lower part; a wick (200) which is inserted into the suction tube and moves the water body from the reservoir to the upper side by a capillary phenomenon; a flow-through tube (120) which connects internal and external spaces of the reservoir; and a valve unit (300) which opens and closes the flow-through tube. The valve unit of the absorption amount control device: seals the internal space of the reservoir in a closed state and stops the operation of the wick by generating a differential head of the inside and outside of the suction tube as a water level in the suction tube descends by the wick; and operates the wick by allowing the water body of the outside of the suction tube to flow into the suction tube by connecting the internal space of the reservoir to the outside in an opened state. The absorption amount control device of the present invention is able to reduce burden on equipment while being environmentally friendly and improving maintenance.

Description

Suction control device using barometric pressure difference {IRRIGATION MANAGEMENT APPRATUS USING PRESSURE DIFFERENCE}

The present invention relates to a watering device, and more particularly to a suction amount control device that can be precisely adjusted for watering while having a simple structure.

A water supply system should be provided for growing plants such as crops and trees. This water supply facility uses a watering device, watering means to supply water to the plants, watering equipment means a device for forming a flow path through a predetermined facility to supply water to a number of plants in a convenient way. do.

Such watering device is generally divided into a watering device that is sprayed from the stem side of the plant to the soil side, and a ground watering system that supplies water directly from the soil side.

In the case of underground water, a tube having a large number of fine pores is used. Recently, a method using a drop hose or a drop tape is used. Drip (點滴) refers to a watering method that continuously supplies a small amount of water limited to the desired area by dropping or dropping the water droplets one by one.

Korean Patent Laid-Open No. 10-2015-0060228 discloses a plant cultivation apparatus to which the bottom watering device of the prior art is applied, and FIG. 1 is a front sectional view thereof.

The plant cultivation apparatus includes a reservoir 10, a drain plate 20, a loss prevention sheet 40, and a wick 30. The soil 2 for planting the plant is stacked on the loss prevention sheet 40, and the soil 2 is prevented from being lost through the vent hole 23 and the wick hole 24 of the drainage plate 20. . According to this configuration, the water of the reservoir 10 is continuously supplied to the soil 2 by the air gap and the hydrophilic fiber of the water pipe 34 of the wick 30 in response to the consumption of water.

As such, in the case of the bottom irrigation, there have been many cases of supplying moisture from the bottom of the vegetation base by using capillary phenomena in consideration of cost reduction, but it has a simple configuration, but artificial control of the amount of suction during irrigation is practical. There was a hard limit. Therefore, since soil is constantly saturated, it is difficult to supply oxygen to the roots and has a limit in which many diseases caused by bacteria and fungi are generated.

Recently, hydroponic cultivation has been introduced to supply artificially prepared nutrient solution directly to the root of the plant. This method has the advantage of accurate control, but it is equipped with the equipment for the mixing and circulation of nutrient solution, the purification device of waste nutrient solution, and oxygen supply. Excessive equipment such as aeration equipment for the use of energy has a lot of limitations.

The present invention has been made to solve the above problems, by allowing the suction amount can be adjusted in the bottom or underground irrigation system using a conventional wick, while reducing the burden on the installation, while maintaining the environmentally friendly and maintainability The purpose is to provide a volume control device.

The present invention provides a water reservoir 100 for providing a space in which a water body is stored, a suction pipe 110 extending downward from an upper side of the water reservoir to provide a moving passage of the water body, and a water body inserted into the suction pipe. A wick 200 for moving upwards according to the capillary phenomenon, a distribution pipe 120 for communicating the inner and outer spaces of the reservoir, and a valve part 300 for opening and closing the distribution pipe, wherein the valve is in the closed state. As the inside space of the suction pipe is lowered and the water level inside the suction pipe is lowered by the wick, the difference between the inside and the inside of the suction pipe is generated to stop the operation of the wick, and in the open state, the internal space of the reservoir communicates with the outside and the outside of the suction pipe It provides a suction amount control device to allow the water body to be introduced into the suction pipe to allow the wick to operate.

Preferably, the suction pipe has a lower end lower than the lower end of the wick.

In addition, the water reservoir may have an air pressure outside the suction pipe is lower than the atmospheric pressure in the closed state of the valve portion and the same as the atmospheric pressure in the open state of the valve portion.

As a first embodiment, the control unit 500 further controls the opening and closing operation of the valve unit and a soil humidity sensor 310 disposed in the soil receiving the water body from the wick, the control unit is a humidity measured from the soil humidity sensor When the humidity is more than the set humidity can be closed to operate the wick to stop the operation of the wick.

In addition, the reservoir may further include an inlet 130 for supplying rainwater as a water body.

The water level sensor 320 further includes a water level sensor 320 for measuring the water level of the water storage part, and the controller is configured to allow the rainwater to flow through the inflow part when the water level measured by the water level level sensor is lower than the set water level. It is desirable to make the air pressure inside the water part correspond to the atmospheric pressure.

The valve unit may be configured as a solenoid valve.

By the suction amount control device using the pressure difference according to the present invention described above, the suction amount can be adjusted only by opening and closing of the air pipe, so in the bottom water irrigation method using the existing wick, it minimizes the installation cost and energy use and precisely controls water supply. Has the possible effect.

Therefore, it is possible to build an optimized environment for the growth of vegetation by increasing the oxygen supply to the roots of vegetation by repeating the periodical water saturation or the watering state in the soil, and at the same time minimizing the amount of water consumption.

In addition, it is possible to utilize the inherent potential energy and organic components of the rain as it is, it is environmentally friendly and has an advantage in the regeneration of resources. This will lead to the advantage of using rainwater directly and omitting large-scale facilities or professional management for the supply of waterbodies, thereby contributing to the expansion of low-change urban productivity.

1 is a front sectional view of a plant cultivation apparatus to which the bottom watering device of the prior art is applied.
Figure 2 is a front sectional view of the suction amount control device according to the concept of the present invention.
3 is a view for explaining the operation of the suction amount control device of the present invention.
4 and 5 is a block diagram of a suction amount control device according to a first embodiment of the present invention.
6 is a configuration diagram of a suction amount control device according to a second embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in more detail the suction amount control device using the air pressure difference according to the present invention.

However, the embodiments described below are merely to describe in detail enough to be able to easily carry out the invention by those skilled in the art to which the present invention pertains, thereby limiting the protection scope of the present invention It does not mean.

In the following description, when a part is 'connected' to another part, this includes not only a case in which the part is directly connected, but also a case in which another element or device is interposed therebetween. In addition, when a part is said to "include" a certain component, it means that it may further include other components, except to exclude other components unless otherwise stated.

Basically, the present invention provides a capillary tube, which includes a reservoir for providing a space in which the water body is stored, a suction pipe extending from the upper side to the bottom of the water reservoir to provide a passage for moving the water body, and a water body inserted into the suction tube. According to the present invention, there is provided a suction amount adjusting device using a pressure difference configured to include a wick moving upwards, a flow pipe communicating inner and outer spaces of the reservoir, and a valve part for opening and closing the flow pipe.

In the present invention, as described below, the case of storing rainwater and using it for vegetation is shown as a basic embodiment, but the water body is irrespective of its kind if it can be used for vegetation such as water, constant water, river water, and chemicals.

Figure 2 is a front sectional view of the suction amount control device according to the concept of the present invention.

The wick 200 may move the water body 410 to the upper part by capillary action in a state in which a part of the water body 410 accommodated in the water storage part 100 is moved and continuously supply it to the soil 420 side to grow plants and the like. Function. Such a wick 200 is made of a good permeability and hygroscopic material, such as non-woven fabric, while the soil 420 is continuously saturated while the wick 200 is continuously locked, it is difficult to supply oxygen to the root of the plant and bacteria It is as described above that there is a problem that can cause the disease caused by the fungus. This is a problem generally seen in the irrigation system having a wick using capillary phenomena due to the inability to control the suction amount.

In the present invention, the wick 200 aspirates the water body 410 contained in the reservoir 100 by capillary phenomenon, but proposes a concept that can be controlled by the air pressure, for this purpose to control the predetermined air pressure on the wick 200 site A suction pipe 110 is formed as a pipeline. The water reservoir 100 may be formed in a predetermined water tank form, but may also be formed in a pipe form, regardless of the shape, number and materials.

The suction pipe 110 extends downward from the upper side of the casing of the reservoir 100 to communicate the upper and lower spaces, and the wick 200 is disposed therethrough. The wick 200 is a portion of the upper side meets the soil 420 and a portion of the lower side is in contact with the water body 410. As will be described below, the inside of the suction pipe 110 is formed with a relatively small diameter, and because water head difference may occur due to a pressure difference between the internal space of the water storage part 100, the lower part of the lower part of the wick 200 for adjusting the water level. They can be formed at lower positions. However, a space is formed between the bottom of the reservoir 100 and the bottom surface of the reservoir 100 so that the water body 410 may flow from the bottom of the reservoir.

The reservoir 100 provides a space that can be isolated from the outside as a whole, and the water body 410 is accommodated therein as described above. The reservoir 100 is connected to the distribution pipe 120 which can be communicated with the outside and the valve 300 is disposed in the distribution pipe 120.

The valve unit 300 performs a function of opening and closing the distribution pipe 120, and supplies the water to the soil 420 by using a pressure difference between the inside and the outside of the suction pipe 110 generated according to the suction of the wick 200. Take control. A detailed description thereof will be provided later. The distribution pipe 120 and the valve unit 300 may be arranged in various ways in consideration of the arrangement of the reservoir 100 or the vegetation.

The valve unit 300 may include a case where a manual operation such as a check valve and a stop valve is possible, as well as a case where it is electrically controlled such as a solenoid valve, and if the air to the distribution pipe 120 can be controlled, Regardless. In addition, the type of valve for controlling the inflow of the water body to be described later is not limited.

3 is a view for explaining the operation of the suction amount control device of the present invention.

3A illustrates a state in which the valve unit 300 is opened to continuously supply the water body 410 of the reservoir 100 to the soil 420, and FIG. 3B illustrates the valve unit 300. ) Is closed to limit the suction amount.

In the present embodiment, the soil 420 is contained in a predetermined container on the upper side of the reservoir 100, and the root of the vegetation part 430 is disposed in the soil 420. The wick 200 is inserted into the bottom of the soil 420, and the water body 410 is sucked by the capillary phenomenon and moved to the soil 420 at the bottom of the wick 200.

Referring to the state of FIG. 3A, the distribution pipe 120 is connected to the outside by the opening of the valve part 300, which indicates that the air pressure P1 inside the reservoir 100 matches the atmospheric pressure. it means.

Therefore, the water level in the reservoir 100 is equal to the water level in the suction pipe 110, and the wick 200 is supplied to the soil 420 by moving the water body upward in the state immersed in the water body 410. When the water body is exhausted from the surface of the soil 420 and the vegetation part 430 due to evaporation, etc., the wick 200 continuously supplies the water body of the reservoir 100 to the soil 420 to compensate for this (a). Will be done.

In this case, the water body can be supplied without external power, but there is a problem in that the oxygen supply is insufficient because the water saturation state to the soil 420 is maintained, which may cause the above problem, and to solve this problem, By appropriately controlling 300, the supply of water bodies can be adjusted.

In FIG. 3 (b), the valve part 300 blocks communication with the outside of the distribution pipe 120, and the internal air pressure P2 is at atmospheric pressure outside the water storage part 100 as the wick 200 is operated. Lower.

When the water body 410 at the bottom of the suction pipe 110 is exhausted to the soil side due to the capillary phenomenon of the wick 200, the water level of the suction pipe 110 is not increased because the volume of the exhausted water body does not flow from the distribution pipe 120. Descends. As the lowering continues, the water level outside the suction pipe 110 and the water level inside have a difference, that is, the head difference d, as shown.

When the contact between the wick 200 and the water body 410 inside the suction pipe 110 is interrupted, the capillary phenomenon is interrupted, so that the supply of water to the soil 420 can be controlled. When the water supply is stopped in this way, the supply of oxygen (b) from the outside to the soil 420 may be performed.

The supply of water to the soil 420 may be controlled by controlling the open state of the distribution pipe 120 according to (a) of FIG. 3 and the closed state of the distribution pipe 120 according to (b) of FIG. 3. This may be achieved by controlling the valve unit 300 according to the need for supplying water to the soil 420 or the need for external oxygen supply.

The control of the valve unit 300 may be performed in various ways such as manual operation by a user or automatic control through a predetermined sensor, and the related embodiments will be described below.

4 and 5 are configuration diagrams for a suction amount control device according to a first embodiment of the present invention, specifically showing the case of the underground water. 4 is a front view showing a suction amount control device according to a first embodiment of the present invention, Figure 5 is shown from the side.

In the following embodiments, the above-described suction amount adjusting device is applied or mutatis mutandis, and redundant description thereof will be omitted.

In the first embodiment of the present invention, it is constructed in the form of underground water.

Therefore, referring to FIG. 5, the reservoir is made of a pipeline embedded in the ground, and the soil 420 is disposed around the underground pipe 101 of the pipeline. The soil 420 is disposed above the soil soil 421, the low density soil 422 disposed on the side and the bottom of the underground pipe 101, and the vegetation part 430. It can be classified as supporting surface soil 423, but is not limited to this arrangement.

In the present invention, the wick 200 is disposed in the form of being inserted into the suction pipe 110 formed in the underground pipe 101, the upper side of the wick 200 functions to supply the water body in contact with the surface soil 423. . The surface soil 423 diffuses the water supplied from the wick and supplies it to the root portion of the vegetation part 430. In consideration of this, the surface soil 423 is mixed with the soil soil 421 and the artificial soil 1: 1. It would be desirable to.

The wick 200 may be considered to be inserted into the soil 420 in the form of a column as in the embodiment of FIG. 3, but when the vegetation part 430 is formed in a relatively large area such as grass or vegetation, For even supply of the upper side of the wick 200 may be preferably formed long in the form of a surface or line in the horizontal direction to the soil 420.

The underground pipe 101 is arranged in a horizontal direction orthogonal to the direction of gravity to function to flow the water body such as rainwater or a constant into the interior. In some cases, the underground pipes 101 may be formed in plural numbers arranged in parallel with each other. Here, the ground may include a case where the ground is disposed on the ground, as well as a case where the soil is formed for the greening of the wall.

In the first embodiment of the present invention is provided with a level sensor 320 to continuously supply the water body 410 to the underground pipe 101, when the soil 420 is insufficient water through the valve unit 300 Soil humidity sensor 310 is provided to supply the water body through the wick (200).

One side of the underground pipe 101 may be connected to the inlet 130 of the pipe form in which rain or water, etc. can be introduced, and the inlet 130 may be provided with a water level sensor 320. The water level sensor 320 detects the water level of the underground pipe 101 and can allow the inflow of water bodies when the water level is formed below the set amount, and keeps the wick 200 constantly operating. At this time, the inlet 130 is provided with a 'U' shaped measuring tube (not shown reference) of a smaller diameter than the underground tube 101 to minimize the influence on the water level of the underground tube 101 and enable accurate measurement The water level sensor 320 may be formed in a portion of the measurement tube.

The water level sensor 320 is connected to the control unit 500 to monitor the water level of the underground pipe 101, the control unit 500 can control the operation of the wick 200, which is the underground pipe 101 It can be made by controlling the operation of the valve unit 300 provided in the distribution pipe 120 connected to) as described above. To this end, the valve unit 300 is preferably made of a solenoid valve.

The control unit 500 may be a device having an independent microprocessor, but may also be a device having a communication module to transmit and receive a signal to a remote server, a PC, or a smartphone.

Meanwhile, at least one soil humidity sensor 310 is provided at a portion of the soil 420 that receives the water body from the wick 200, and measures the humidity of the soil 420 and sends it to the controller 500. . Therefore, the control unit 500 measures the humidity measured by the soil humidity sensor 310 and appropriately determines the case where the supply of water or the supply of oxygen is required, and the soil 420 by controlling the valve unit 300. ) Humidity can be controlled.

Looking at the suction amount control device according to the first embodiment of the present invention, when the water body of the soil 420 due to the evaporation of the vegetation part 430 is consumed, the control unit 500 is a distribution pipe through the valve unit 300 Opening the 120 to the outside and the wick 200 is to move the water body in contact with the suction pipe 110 to the soil 420 by the capillary phenomenon to supply the water body. The soil humidity sensor 310 monitors the humidity of the soil 420 in the process of supplying the water body, and when the humidity is higher than the reference amount, the control unit 500 closes the valve unit 300 to communicate with the distribution pipe 120. To block. Accordingly, the water level of the suction pipe 110 is lowered in the process of moving the body of the wick 200, but the pressure inside the underground pipe 101 is lowered, so that the water level in the suction pipe 110 having a relatively small diameter is faster than the external water level. Since the contact with the wick 200 is cut off, the capillary phenomenon is blocked. In the underground pipe 101, the water head difference d is generated inside and outside the suction pipe 110.

The control unit 500 continuously monitors the humidity of the soil 420 through the soil humidity sensor 310, so when the humidity of the soil becomes less than or equal to the set amount in the state in which the operation of the wick 200 is stopped, the valve unit 300 again. Repeat the process to operate the wick 200 to operate.

In addition, the water level sensor 320 may continuously monitor the internal water level of the underground pipe 101 in order to prevent the operation of the wick 200 due to the overall lowering of the water level inside the underground pipe 101. . At this time, the control system related to the adjustment of the water level will be described later in the description of the second embodiment.

6 is a configuration diagram of a suction amount control device according to a second embodiment of the present invention.

In a second embodiment of the present invention, a bottom watering type is provided.

Basically, the reservoir is disposed on a predetermined bottom surface or a bracket, etc. In this case, the reservoir is defined as the bottom tube 120. In the case of such a bottom tube 120 may be made in a variety of ways, such as the pipe or tank form as the first embodiment.

The bottom tube 120 has a structure that can be isolated from the outside roughly, and one or more suction pipes 110 communicating with the upper and lower portions are formed so that the wick 200 can be inserted therein. The wick 200 supplies a water body to the soil 420 in which the vegetation part 430 is formed, and in the second embodiment, a soil accommodating part such as a flower pot capable of accommodating the soil 420 is formed. However, as shown in the first embodiment, the soil 420 of the bottom pipe 120 may be continuously disposed.

A part of the bottom tube 120 is in communication with the distribution pipe 120 is opened and closed by the valve unit 300 and accordingly the wick 200 can be operated as described above. Even in the second embodiment, the valve unit 300 may be configured as a solenoid valve so that the operation may be controlled by the controller 500.

The soil humidity sensor 310 is disposed on the soil 420 to transmit a measurement signal of the humidity of the soil to the controller 500, and the controller 500 controls the valve unit 300 accordingly. Overlapping descriptions thereof will be omitted.

The water level sensor 320 is disposed inside the bottom tube 120 to perform a function of measuring the water level, and transmits a measurement signal for the water level to the controller 500. When the water level becomes less than the set amount, the control unit 500 may allow the external inflow of the water body to maintain the water level of the bottom tube 120. For this purpose, the bottom tube 120 may allow the water body to be introduced from the outside. It may be connected to the inlet 130.

The inlet 130 is formed in the form of a pipe to enable the inflow of water bodies such as rain or water, and the inlet opening and closing valve 330 may be provided to enable the control of the inlet by the control unit 500. The inlet opening and closing valve 330 controls the opening and closing of the inlet 130 so as to replenish the water level of the bottom tube 120 according to the control signal of the control unit 500.

Duplicate descriptions related to the operation of the soil humidity sensor 310, the control unit 500, and the valve unit 300 will be omitted, and the operation of the water level sensor 320 and the inlet opening / closing valve 330 will be described.

At this time, when the water body 410 is introduced, it is necessary to control the pressure inside, and it is preferable that the operation of the valve unit 300 and the inlet opening / closing valve 330 is interlocked. Therefore, when the inlet opening and closing valve 330 is opened and rainwater is introduced into the bottom tube 120 through the inlet 130, the water level sensor 320 detects an increase in the water level, and the control unit 500 inflows accordingly. Opening the shutoff valve 330 to match the air pressure in the bottom tube 120 with the atmospheric pressure. When the water level inside the bottom pipe 120 is formed at the set water level, the inlet opening / closing valve 330 closes the inlet 130 and the control unit 500 blocks the valve unit 300 in the state where the excellent storage is completed. The operation of the wick 200 may be controlled again by forming the head difference d within the suction pipe 110 according to the operation of the 200.

The water level level sensor 320 allows to monitor the water level inside the bottom pipe 120, and if the water level is lowered below the set amount, the control unit 500 again opens the inlet opening and closing valve 330 to compensate for this. The above process may be repeated.

Configurations of each of the above-described embodiments may be applied interchangeably or additionally, and various modifications will be included in the scope of the present invention.

By the suction amount control device using the pressure difference according to the present invention described above, the suction amount can be adjusted only by opening and closing of the air pipe, so in the bottom water irrigation method using the existing wick, it minimizes the installation cost and energy use and precisely controls water supply. There is a possible advantage.

Therefore, it is possible to build an optimized environment for the growth of vegetation by increasing the oxygen supply to the roots of vegetation by repeating the periodical water saturation or the watering state in the soil, and at the same time minimizing the amount of water consumption.

In addition, it is possible to utilize the inherent potential energy and organic components of the rain as it is, it is environmentally friendly and has an advantage in the regeneration of resources. This would lead to the advantage of using rainwater directly and omitting large-scale facilities or specialized management for water supply, which would contribute to the expansion of low-change urban productivity.

In the above, the present invention has been described in detail based on the embodiment and the accompanying drawings. However, the scope of the present invention is not limited by the above embodiments and drawings, and the scope of the present invention will be limited only by the contents described in the claims below.

100 Water reservoir 101 Underground pipe
110 ... suction tube 120 ... distribution tube
130 ... inlet 200 ... wick
300 ... Valve section 310 ... Soil humidity sensor
320 level sensor 330 inlet open / close valve
410 Water body 420 Soil
421 Ground Soil 422 Low Density Soil
423 Surface Soil 430 Vegetation
500 ... control unit

Claims (7)

Storage unit 100 for providing a space in which the water body is stored;
A suction pipe (110) extending from the upper side to the lower portion of the reservoir to provide a moving passage of the water body;
A wick (200) inserted into the suction pipe to move the water body from the reservoir to an upper side according to a capillary phenomenon;
Distribution pipe 120 for communicating the inner and outer space of the reservoir portion;
It includes; valve unit 300 for opening and closing the distribution pipe,
The valve unit,
In the closed state, the internal space of the reservoir is sealed and the water level inside the suction pipe is lowered by the wick to generate water head difference between the inside and the suction pipe to stop the operation of the wick, and open the internal space of the reservoir in the open state. A suction volume control device which communicates with and allows water bodies outside the suction pipe to flow into the suction pipe so that the wick can operate. The method of claim 1,
The suction pipe,
Suction amount control device that the lower end is formed lower than the lower end of the wick. The method of claim 1,
The water storage unit,
A suction amount control device in which the air pressure outside the suction pipe is lower than atmospheric pressure in the closed state of the valve portion and equal to atmospheric pressure in the open state of the valve portion.
The method of claim 1,
A control unit 500 for controlling the opening and closing operation of the valve unit; And
Further comprising: a soil humidity sensor 310 disposed in the soil receiving the water body from the wick;
The control unit,
Suction amount control device to stop the operation of the wick by closing the valve unit when the humidity measured from the soil humidity sensor is more than the set humidity.
The method of claim 4, wherein
Suction amount control device further comprising; inlet 130 for supplying rainwater to the reservoir to the rainwater.
The method of claim 5,
It further includes; a water level sensor 320 for measuring the water level of the reservoir portion,
The control unit,
When the water level measured by the water level level sensor is below the set level, the suction amount control device to allow the rainwater to flow through the inlet but to open the valve to correspond to the air pressure and the atmospheric pressure inside the reservoir.
The method according to any one of claims 1 to 6,
The valve unit,
Suction control device, solenoid valve.

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