KR101637036B1 - nutrient solution supply system with filter - Google Patents

Abstract

The present invention relates to a nutrient solution supply system having a filtering device, comprising: a raw water tank (10); a mixing tank (30) in which a raw water from the raw water tank (10) and a nutrient solution from a plurality of nutrient solution tanks (20) are introduced and mixed; and a plurality of automatic irrigation valves (40) in which the nutrient solution mixed in the mixing tank (30) is irrigated through an irrigation tube, wherein the raw water in the raw water tank (10) is introduced into the raw water tank (10) through a filtering device from an underground irrigation pond by means of an irrigation water suction pump. The filtering device (200) comprises: a cover (210) which has an inlet (211) through which the raw water is introduced from the raw water suction pump; a precipitation unit (220) which is joined at a lower part of the cover (210) and separates the raw water and foreign materials; a filtering unit (230) which is joined at a lower part of the precipitation unit (220); a foreign material storage tank (240) which is joined at a lower part of the filtering unit (230) and stores the foreign materials removed in the precipitation unit (220); and a discharge outlet (212) which is formed so as to pass through a top surface of the cover and allows the raw water from which the foreign materials are removed to be discharged into the raw water tank (10). Thus, since the present invention utilizes a filtering device without a filter and thus does not require the repeated replacement of the filters, the filtering device can be used for a long time.

Description

[0001] The present invention relates to a nutrient solution supply system,

The present invention relates to a nutrient solution supply system provided with a filter, and more particularly to a nutrient solution supply system in which a nutrient solution in a nutrient solution tank is supplied to a mixing tank through a venturi, will be.

In general, nutrient solution cultivation is a scientific method for cultivating various crops by supplying a culture solution containing all nutrients necessary for plant growth, as described in the prior art in Patent Registration No. 10-1090279 and Registration No. 10-0298214 As a farming technology, it is intended to grow plants without regard to soil, and this is distinguished by cultivation of solid medium and cultivation of liquid medium and thin film according to medium. The above-mentioned nutrient solution cultivation can prevent the pests and diseases of various crops, and can be said to be an advanced farming method in which pollution free plants can be produced by an organic pesticide-free cultivation. In the nutrient solution feeding system for the nutrient solution cultivation, the concentration of the nutrient solution is set in advance so as to be suitable for the growth of cultivated crops, and then the concentrated nutrient solution is supplied and mixed with the water, The nutrient solution is automatically supplied and the nutrient solution is detected and read, and the read data is supplied to a display unit such as an LCD or the like via a warning display unit The present invention relates to an automatic nutrient supply control and fault diagnosis system for detecting and displaying an abnormality in a process, and discloses a technique for automatically adjusting and supplying environment and climate required by various cultivated crops.

In addition, as described in the above-mentioned prior art publication No. 10-1090279, registration No. 10-0933624 discloses a water supply system including a base portion connected to a raw water supply portion, a vegetation portion, a nutrient solution supply portion A control unit and nutrient solution supply means for supplying a solution and raw water by the nutrient solution supplier operated under the control of the control unit and storing the nutrient solution in which the solution and raw water are mixed in the base unit, The nutrients of the nutrient solution are directly supplied to the plant roots of the vegetation soil filled in the vegetation space of the vegetation part by the nutrient solution feeding means in a different amount by the control part for each vegetation space, In order for the growth of the growing plants to take place automatically, as well as for the growth of different plants in one place A technique for providing a nutrient solution cultivation apparatus is disclosed. However, the above-mentioned conventional nutrient solution supply system is merely a combination of the functions, and thus has a disadvantage in that the volume of the machine is large, its weight is heavy, and operation is inconvenient.

However, in the conventional apparatuses as described above, the filter is used as a filter system, and it has a disadvantage that it needs to be replaced and cleaned every time.

Accordingly, the present invention is advantageous in that the filter of the filter is not required to be replaced every time because the filter is used without a filter, and a nutrient supply system equipped with a filter capable of using the filter for a long time is provided.

The present invention relates to a nutrient solution supply system provided with a filter and includes a raw water tank 10, a mixing tank 30 in which nutrient solution is supplied and mixed in raw water and a plurality of nutrient tanks 20 of the raw water tank 10, The mixing tank 30 is composed of a plurality of pipe-receiving solenoid valves 40 through which the mixed nutrient solution is drained through a water pipe. The raw water of the raw water tank 10 is passed through a strainer The filter 200 is connected to a cover 210 having an inlet 211 through which raw water is introduced from the raw water suction pump and a lower portion of the cover 210, A filter unit 230 coupled to a lower portion of the dust collecting unit 220 and a foreign matter storage unit 220 coupled to a lower portion of the filtering unit 230 to store foreign substances removed in the dust collecting unit 220, A tank 240, and an upper surface of the cover 210 And a discharge port (212) for discharging raw water from which the foreign substance is removed to the raw water tank (10).

Accordingly, the present invention uses filters without a filter, so there is an advantage that the filter of the filter is not required to be replaced every time, and there is a remarkable effect that the filter can be used for a long period of time.

1 is a perspective view of a filter according to the present invention;
2 is a detailed sectional view of the filter of the present invention.
3 is a cross-sectional view of the filter of the present invention in a state where the cover of the foreign matter storage tank is separated.
4 is a view showing the structure of a nutrient solution system equipped with a venturi tube of the present invention.
Fig. 5 is a view showing a nutrient solution system equipped with a venturi tube according to the present invention, in which a nutrient solution supply head is installed.
6 is a schematic diagram of a conventional nutrient supply system and method.

The present invention relates to a nutrient solution supply system provided with a filter and includes a raw water tank 10, a mixing tank 30 in which nutrient solution is supplied and mixed in raw water and a plurality of nutrient tanks 20 of the raw water tank 10, The mixing tank 30 is composed of a plurality of pipe-receiving solenoid valves 40 through which the mixed nutrient solution is drained through a water pipe. The raw water of the raw water tank 10 is passed through a strainer The filter 200 is connected to a cover 210 having an inlet 211 through which raw water is introduced from the raw water suction pump and a lower portion of the cover 210, A filter unit 230 coupled to a lower portion of the dust collecting unit 220 and a foreign matter storage unit 220 coupled to a lower portion of the filtering unit 230 to store foreign substances removed in the dust collecting unit 220, A tank 240, and an upper surface of the cover 210 And a discharge port (212) for discharging the raw water, which is formed in a lock shape and has been removed of the foreign substance, to the raw water tank (10).

The raw water in the raw water tank 10 flows into the raw water tank 10 through the raw water suction pump and the filter from the underground tank and then flows into the mixing tank 30 through the feed pump 54, A negative pressure is generated in each of the venturi 94 connected between the branch pipe and the mixing tank 30 branched from the water pipe by the irrigation action of the irrigation pump 60, The nutrient solution of the nutrient solution tank 20 sequentially flows through the opening and closing valve 92 and the venturi 94 and then flows into the mixing tank 30 And the mixed nutrient solution in the mixing tank 30 is fed through a plurality of solenoid valves 40 via a waterpump pump 60 and each venturi is connected to one nutrient solution feeding head 100, The nutrient solution supplying head 100 is connected to the mixing tank 30 .

The water supply pump 54 is operated faster than the irrigation pump 60 for a predetermined time to disperse a high starting power generated when the water supply pump 54 and the irrigation pump 60 are operated simultaneously, .

Also, when the selection of nutrient solution in the nutrient solution tank 20 is changed in the control panel, the nutrient solution tank 20 is emptied through a separately installed drain pipe before the selection of the nutrient solution tank 20 is changed so that the previous nutrient solution can not remain in the mixing tank .

The present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of the filter of the present invention, FIG. 2 is a detailed sectional view of the filter of the present invention, FIG. 3 is a sectional view of the filter of the present invention, FIG. 5 is a schematic view showing a nutrient solution supply system equipped with a venturi tube of the present invention, and FIG. 6 is a schematic view of a conventional nutrient solution supply system and method.

The raw water suction pump uses an automatic pump with an automatic water level controller so that when the raw water inside the raw water tank is below a certain level, the pump automatically operates. When the water level reaches a certain level, the pump is stopped, .

The mixing tank is a tank that mixes the nutrients that have flowed through the venturi and has a capacity of about 200 liters.

And a control panel for controlling the nutrient solution supply and the irrigation water are installed together.

The maximum irrigation capacity of the present invention nutrient supply system is about 12,000 to 18,000 liters / hour and the nutrient supply is 10 to 500 liters / hour. The liquid control of the present invention performs proportional control by the nutrient solution setting value.

The machine weight of the present invention is about 80 Kg, and the power source uses three-phase four-wire type AC380V / 60Hz.

In the present invention, the nutrient solution for liquid fertilizer can be irrigated differently in different groups depending on the place and time, and all or part of the nutrient tanks are selected and mixed in a mixing tank. And select the appropriate group for each of them.

The nutrient solution supply system provided with the filter according to the present invention comprises a raw water tank, a mixing tank 30 in which nutrient solution is supplied and mixed in raw water and a plurality of nutrient tanks 20 of the raw water tank 10, And a plurality of pipe-receiving solenoid valves 40, through which the mixed nutrient solution is irrigated through the irrigation pipes.

The raw water in the raw water tank 10 is introduced into the raw water tank 10 through a filter by a raw water suction pump widely used from the underground tank or the earth surface and then flows through the feed pump 54 to the mixing tank 30 ).

The filter 200 includes a cover 210 having an inlet 212 into which raw water flows from the raw water suction pump, a dust collecting unit 220 coupled to a lower portion of the cover 210 to separate raw water and foreign substances, A foreign matter storage tank coupled to a lower portion of the filtration unit 230 to store foreign substances separated in the dust collection unit 220, And a discharge port 212 for discharging the raw water from which the foreign substances have been removed to the raw water tank 10.

The filter is a cyclone that actually collects foreign matter by using centrifugal force. The filter causes a swirling motion in the dust collecting part to separate raw water and foreign matter by a centrifugal force acting on the raw water.

That is, the raw water flowing into the filter is swirled by the inlet of the filter to form a descending vortex.

The foreign matter in the raw water gets a centrifugal force to get out of the vortex and collide with the inner wall of the dust collecting part to fall into the filtering part coupled to the lower part of the dust collecting part to fall into the foreign matter storage tank to separate the foreign matter.

That is, the raw water introduced into the inlet of the filter forms a vortex while spirally rotating in a cylindrical or conical cylinder, and the foreign matter contained in the raw water is separated from the raw water on the inner wall of the cylinder or the inner wall of the conical cylinder by the centrifugal force, Flows downward and is stored in the foreign matter storage tank 240.

Since the center portion of the dust collecting portion is maintained at a negative pressure, the raw water separated from the foreign material rises to the upper portion of the filter and is discharged to the raw water tank 10 through the discharge port.

Meanwhile, the filtration unit is provided between the lower surface of the dust collecting unit and the upper surface of the foreign matter storage tank, and passes the separated foreign matter to the foreign matter storage tank in the dust collecting unit.

The filtration unit 230 includes a case 231, a cylindrical support member 232 fixed to the inner wall of the case 231 and hollow inside thereof, a movable member 233 coupled to the support member to be movable up and down ).

A through hole is formed in the upper surface of the support member at a predetermined interval in the circumferential direction about a hollow hollow having an inner hollow. The through hole is formed to penetrate through the support member to move the foreign matter filtered in the dust collecting unit through the through hole It will act as a channel.

’형상이다.Wherein the moving member is formed in a cylindrical shape protruding from the disc and the lower portion of the disc,

'Shape.

The moving member also has the same through hole as the supporting member, and acts as a passage for moving the foreign matter filtered inside the dust collecting unit through the through hole.

In addition, a screw surface is formed on the outer periphery of the columnar body of the moving member, and a threaded surface is also formed on the inner circumferential edge of the cylindrical supporting member which is hollow, so that the moving member and the supporting member are screwed.

Thus, the user can move the handle 234 formed on the bottom surface of the moving member to the right or left direction, and move the moving member to the upper and lower portions while fastening the moving member to the supporting member.

Therefore, by controlling the volume of the inside of the dust collecting unit by moving the moving member to the upper and lower parts, the pressure of the center of the filter can be adjusted according to the swirling flow and the flow of raw water coming into the dust collecting unit.

The foreign matter storage tank is installed at a lower portion of the filtration unit, and stores the foreign matter filtered by the dust collection unit.

The foreign matter storage tank 240 is composed of a hollow body 241 and a foreign matter storage tank cover 242 coupled to a lower portion of the body, and a partition wall 243 protruding downward is formed on the upper surface of the body. And a partition wall protruding upward is formed on an upper surface of the foreign matter storage tank cover.

Accordingly, the foreign matter storage tank is formed with a partition wall, so that foreign matter can be prevented from being sucked back into the dust collection unit.

In this case, negative pressure is generated in each of the venturi 94 connected between the water supply pipe and the mixing tank by the irrigation action of the irrigation pump 60, The nutrient solution is sucked into the mixing tank 30 smoothly.

The nutrient solution of the nutrient solution tank 20 sequentially flows through the opening and closing valve 92 and the venturi 94 and then flows into the mixing tank 30.

The mixed nutrient solution in the mixing tank 30 is fed through a plurality of solenoid valves 40 via a water pump 60.

On the other hand, each of the venturi is provided with an opening / closing valve 92, and each venturi is connected to one nutrient solution supply head, and the nutrient solution supply head is connected to the mixing tank. Therefore, the nutrient solutions supplied through the respective venturi are uniformly mixed first in the nutrient solution feed head and then supplied to the mixing tank. Since the venturi can be used conventionally in the laboratory or in the field of fluid machinery, a detailed description thereof will be omitted.

Further, in the present invention, the feed pump 54 operates for a certain time, usually about 3 seconds, more than the irrigation pump 60. Therefore, stable power supply can be achieved by dispersing the high starting power generated when the pump water supply pump and the water supply pump operate simultaneously.

In addition, when the nutrient solution in the nutrient solution tank is changed to a new one in the control panel, the nutrient solution tank is emptied through a drain pipe separately provided under the nutrient solution tank before the selection of the nutrient solution tank is changed so that the previous nutrient solution does not remain in the mixing tank . The drain pipe is provided with a solenoid valve. When it is determined that the control panel selects a new nutrient solution, the control panel sends an electric signal to the solenoid valve to open the solenoid valve to drain the remaining nutrient solution. Then, the solenoid valve is closed, and then a new nutrient solution is supplied.

On the other hand, the EC sensor for measuring the electric conductivity and the PH sensor for measuring the acidity and the alkalinity are widely used, and the EC sensor is installed between the mixing tank and the irrigation pump, And the mixing tank.

Accordingly, the present invention uses filters without a filter, so there is an advantage that the filter of the filter is not required to be replaced every time, and there is a remarkable effect that the filter can be used for a long period of time.

10: raw water tank 20: nutrient solution tank
30: mixing tank 40: solenoid valve
54: Feed water pump 60: Irrigation pump
92: opening / closing valve 94: venturi
100: nutrient solution feeding head 101: EC sensor 102: PH sensor
200: filter 210: cover 211: inlet
212: exhaust port 220:
230: filtration unit 231: case 232: support member
233: moving member 234: handle
240: Foreign matter storage tank 241: Body
242: Foreign matter storage tank cover 243:

Claims (2)

A mixing tank 30 in which a nutrient solution is supplied and mixed in the raw water and a plurality of nutrient tanks 20 of the raw water tank 10 and a mixing tank 30 for mixing nutrient solution mixed in the mixing tank 30, And a plurality of tube-receiving solenoid valves 40,
The raw water in the raw water tank 10 flows into the raw water tank 10 through the raw water suction pump and the filter from the underground tank and then flows into the mixing tank 30 through the feed water pump 54, Negative pressure is generated in the respective venturi 94 connected between the branch pipe and the mixing tank 30 branched from the water pipe due to the watering action of the nutrient solution tank 60 and the nutrient solution in the nutrient solution tank 20 The nutrient solution of the nutrient solution tank 20 flows sequentially into the mixing tank 30 after passing through the opening and closing valve 92 and the venturi 94 in succession The mixed nutrient solution in the mixing tank 30 is fed through a plurality of solenoid valves 40 via a waterpump pump 60 and each venturi is connected to one nutrient solution feed head 100, The feeding head 100 is connected to a mixing tank 30, In the system,
The filter 200 includes a cover 210 having an inlet 211 into which raw water flows from the raw water suction pump, a dust collecting unit 220 coupled to a lower portion of the cover 210 to separate raw water and foreign substances, A foreign matter storage tank 240 coupled to a lower portion of the cover 220 to store foreign substances removed in the dust collecting unit 220, (Not shown).
The raw water introduced into the inlet of the filter forms a vortex while spirally rotating inside the conical cylinder, which is a dust collecting part. The foreign matter contained in the raw water is separated from the raw water on the inner wall of the conical cylinder by the centrifugal force and flows downward Since the central portion of the dust collecting portion is maintained at a negative pressure, the raw water separated from the foreign material rises to the upper portion of the filter and is discharged to the raw water tank 10 through the discharge port,
The foreign matter storage tank 240 includes a hollow body 241 having a hollow interior,
A partition wall 243 protruding downward is formed on the inner upper surface of the body, a partition wall protruding upward is formed on the upper surface of the foreign matter storage tank cover, and foreign matter Thereby preventing the filter from being sucked back into the dust collecting part.
delete

Images