JPS62155013A - Dilution distributor of plant culture liquid - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Purpose of the Invention] This invention is used in greenhouse horticulture, etc. to determine the amount of irrigation water mixed with an appropriate amount of crop fertilizer or agricultural chemicals to improve the condition of the target crop. It relates to a device that adjusts and distributes according to the amount of water.

In conventional plant cultivation, before planting crops, the necessary amount of fertilizer and various fertilizers are applied in the form of basal fertilizer to an appropriate depth.
Afterwards, during cultivation, it is common to apply additional fertilizer in an appropriate form such as liquid or powder depending on the growing situation of the crop, but with this method, it is difficult to adjust the optimal amount of fertilizer and watering for the crop. Depending on the weather and irrigation conditions, crops can attract growth and become susceptible to disease, requiring great skill to manage the healthy growth of crops.

In addition, in recent years, in facility cultivation, diluted liquid fertilizers are applied using irrigation vibrators, etc., through sprinklers or pipes buried in the ground, taking into account the growth conditions of the crops and the weather, etc., or they are applied without using the cultivation soil. Methods such as treating the fertilizer as liquid cultivation from the beginning and applying the liquid fertilizer after diluting it in proportions according to crop growth conditions are adopted.

However, these methods always require the consideration of a skilled cultivation room depending on the cultivation situation of the crop, and the operation thereof is complicated, and the facilities thereof inevitably become complicated.

In recent years, there have been a few proposals aimed at improving these points (see, for example, Japanese Patent Publication No. 57-24730), but these are only at the experimental stage, and are not intended to be applied or disseminated to farmers' cultivation facilities. It is far from the stage where it is enforced.

That is, in the above invention, only an appropriate amount of liquid fertilizer is dripped into the cultivation bed (in the embodiment, a container (usually referred to as a bench) which is located away from the soil of a field, etc.), and the relationship with the fertilizer concentrate, that is, the dilution effect, is also important. No consideration is given to the equalization of the application distribution effect, nor is there any suggestion of this.

[Structure of the invention]

Problems to be Solved by the Present Invention The present invention first aims to provide water from a pressurized water source to the intended cultivation plant bed at any given time.
That is, before or after sowing, at the time of planting, or at the beginning of growth,
What kind of water and fertilizer should be mixed with it, how much hormones, pest control agents, etc. should be applied in the middle and late stages (before and after harvesting), etc., and for how long? The purpose of the present invention is to provide a device that determines the following and rationally implements the same.

Next, to explain the solution of the present invention in more detail, as shown in the flow sheet of Figure 1 below, source water from an appropriate source water tank, etc. is passed through an inlet pipe and a solenoid valve is activated. Then, the pressure is reduced through an appropriate pressure reducing valve to a flow rate that can be supplied as desired depending on the floor area of the facility and the number of benches, and then through a manual pol valve, a pulse oscillation flowmeter, and the appropriate position of the water supply pipe. A flow sheet is provided in the tank, and an appropriate number of metering pumps are used to pump the appropriate number of liquids (two tanks for liquids A and B in Figure 1).
For example, an appropriate amount of undiluted fertilizer, etc. is mixed from a fertilizer tank into a liquid supply pipe through a check valve, introduced into a buffer tank, where the water and fertilizer are thoroughly mixed, and then fed to an appropriate field. It is electrically adjusted using a control box (internally equipped with appropriate I and C circuits).

Next, to explain the configuration of the present invention more specifically, FIGS.
As shown in the embodiment shown in Fig. 7, a nutrient solution diluter section is incorporated in case C, and this is controlled to supply a desired amount of mixed concentration of fertilizer, etc. to the field at a desired time. It consists of a control box B, which is connected to a source water tank (not shown) or a water pipe through an inlet pipe 1, and is then passed through a solenoid valve 2. It passes through a pressure reducing valve 3 that adjusts the water pressure on the discharge side so that the water pressure can be distributed to the metering pump 7, and the water pressure on the discharge side of the metering pump 7 is within a certain range, so that the metering pump operates normally.
Via a manually adjustable ball valve 4, a pulse oscillation flowmeter 5
Accordingly, the metering pump 7.7 supplies the appropriate amount of liquid (fertilizer stock solution, etc.) through the check valves 8, 8 to the liquid supply pipe 9, and the buffer tank built in below each of these devices. 1°, is introduced into the injection pipe 1) through the supply pipe 9', and is injected into the buffer tank IO through the injection hole 1)'.
When the tank is full, it is sent by the injection pipe 1) through the connecting pipe 12 into the adjacent banfa tank 10' of a similar structure, and is injected into the same tank from the injection hole 1)', until the tank is full. In other words, the liquid is supplied from the liquid supply port 14 to a cultivation bed or a bench in the facility through a pipe 17.

In addition, in the invention stated in claim 2,
From a pressurized water source, through various control valves (namely, solenoid valve 2, pressure reducing valve 3) and pulse oscillation flow meter 6, plant cultivation fertilizer stock solution etc. ￥1) Control box B to control the flow rate according to the cultivation situation or cultivation area.
At the same time, the flow checker 6 and manual ball valve 4 installed at appropriate locations in the water supply pipe 9 detect whether or not the required amount of flow from the raw water is always being supplied (i.e., the flow checker in the flow checker (detected by looking at the movement of the loose piece 6' installed by the spring 6),
When fluctuations (i.e. increases and decreases) occur due to some reason, the manual ball valve is operated to adjust the amount of water supplied to the necessary and appropriate amount, which is then sent to the buffer tank and mixed with raw water in the same manner as above. After mixing appropriate stock solutions of fertilizers, etc., the desired amount of solution is distributed to cultivation facilities.

The above is one embodiment of the present invention, and the size of the field used can be changed as appropriate.
Of course, the number of constant pressure valves 16, 16', and 16 can be selected as appropriate.

Effect of ClarificationNext, the effect of the present invention will be explained along with the usage situation of the device of the present invention.The raw water introduced through the introduction pipe 1 from a raw water tank or tap water (which has a constant pressure and a stable flow rate and is easy to use), etc. Solenoid valve 2.15.15'.

15" and a manual ball valve 4, the control box B adjusts the amount as desired according to the cultivation area (or hench area) in the facility, and the metering pump 7.7 is operated through the pulse oscillation flowmeter 5. Then, an appropriate amount of fertilizer, etc. (hormones, pesticides, etc.) is delivered from the fertilizer, etc. stock solution tanks T, T to the liquid supply pipe 9', and the injection pipe 1) is sent to the buffer tank 10, 10' provided at the bottom of the case. 13, and the buffer tank 1 is fed through the injection holes 1)' and 13'.
Spray the raw water and an appropriate amount of the stock solution within 0.10' of water (after stirring and mixing, spray at 19.19', 19' in the field).
For example, its design is as follows:
If the one-time discharge amount of the metering pump 7.7 is lcc and the metering pump 7.7' is operated once with one pulse, a diluted solution diluted 100 times can be prepared.

In the same way, the pulse oscillation flowmeter 5 outputs 100 pulses.
It is possible to dilute the nutrient solution by 1 pulse at cc or 1 pulse at 200 cc, or by operating the metering pump 7 in a range from 1 to 10 dilutions per pulse.

In addition, when supplying raw water as it is to the fields 19.19' and 19'', in addition to setting the discharge amount of the metering pump 7.7 to zero, you can also operate the metering pump 7.7 by operating the control box B. It is also possible to stop the water supply and only supply raw water.

In addition, a diluent that can supply a diluent with a concentration normally used is based on the upper limit of the number of operations per minute of the metering pump 7.7, which is 150 times/minute, and the upper limit of the discharge volume that can be discharged in one operation, 2 cc/times. The liquid volume is 301/min.

However, the concentration of the fertilizer stock solution that can be normally prepared is 1.
This is due to the fact that it is common to use a 00 times concentrated solution, and if it is possible to create a stock solution with a higher concentration, it can be further increased.

In this way, the diluted nutrient solution is supplied, but in 10a operation fields (tomatoes, cucumbers, strawberries, etc.), 5001 to 100067 days of supply is required, and this device cannot be used. Therefore, sufficient liquid can be supplied with an operating time of 20 minutes/200 minutes/day, making it possible to supply liquid suitable for actual operation cultivation.

In addition, the nutrient solution discharge equipment actually used 18.18.18-
The field is 19°19' according to the discharge amount per unit time.
, 19" into small blocks, each with a solenoid valve 15° and 15'
, 15" is installed, the opening and closing are adjusted using control box B, and the field is 19.19'.

Constant pressure valve 16.16', 16' installed separately on 19''
By #, the performance of the nutrient solution discharging device 18 can be fully demonstrated.

In addition, in the invention recited in claim 2, as described in detail in the configuration of the present invention, a suitable place of the water supply pipe 9 of the present invention (in this embodiment, next to the pulse oscillation flowmeter 5) is provided. A flow ticker 6 installed in a pressurized water source passes through various control valves and a pulse oscillation flow meter 1, and a metering pump 7.7 operated correspondingly supplies an appropriate amount of nutrient solution, etc., to a liquid supply pipe. The control box B allows the liquid to be mixed into the supply pipe, and the floating piece 6' of the flow sheet 6 can detect whether the desired flow rate is always reached, and this causes excess or deficiency. In this case, the flow rate can be adjusted to an appropriate level by operating the manual ball valve 4.

〔Effect of the invention〕

In view of the above configuration, the present invention provides (1) crop cultivation according to the growth conditions of the cultivated crop (2)
) In particular, the fertilizer components in the nutrient solution can be evenly mixed and fed using a simple device.

(3) An appropriate amount of fertilizer-containing nutrient solution can be supplied using an extremely simple device and easy to operate, depending on the cultivation area (bench area) within the facility.

(4) By installing a flow ticker, the supply of the desired nutrient solution can be checked at all times, and its adjustment can be easily performed by operating a manual ball valve, making it easier to manage greenhouse horticulture. It is.

[Brief explanation of drawings]

FIG. 1 is a flow sheet showing the concept of the present invention, FIG. 2 is a front view of the main parts of the device of the present invention, FIG. 3 is a plan view of the upper part of FIG. 2, and FIG. FIG. 2 is a side view of the buffer tank provided in the lower part of the tank, FIG. 5 is a partially sectional plan view of the buffer tank, FIG. The figure is an explanatory diagram of a field where the present invention is practiced. 1...Introduction pipe, 2...Solenoid valve, 3...Pressure reducing valve, 4
...Manual ball, 5...Pulse transmission flowmeter, 6...
・Flow checker, 6′... floating piece, 6"... spring, 7... metering pump, 8... check valve, 9.
...Water supply pipe, 9'...Liquid supply pipe (mixture of source water and fertilizer, etc.), 10.10'...Buffer tank, 1). 13・
...Injection pipe, 1)', 13'...Injection hole, 12...
Connecting pipe, 14...Liquid feeding port, 15, 15', 15".
...Solenoid valve, 16.16', 16"...Constant pressure valve, 1
7... Piping, 1st... Nutrient solution discharge equipment, 19.19'
, 19''...I field, c...case, B...control box, T...undiluted solution tank. Patent applicant: Kyowa Seed Co., Ltd. Figure 4 Figure 5

Claims (2)

[Claims] (1) An appropriate amount of plant cultivation fertilizer stock solution, etc. is introduced from a pressurized water source through various control valves and pulse oscillation flowmeters using a metering pump that operates in accordance with these, and is uniformly mixed in a buffer tank. A device for diluting and distributing a plant cultivation nutrient solution, etc., which is characterized in that it distributes an arbitrary amount of the solution to a cultivation facility. (2) An appropriate amount of plant cultivation fertilizer stock solution, etc. is allowed to flow in from a pressurized water source through various control valves and pulse oscillation flowmeters, and a metering pump that operates correspondingly to these, and the flow rate is determined based on the cultivation status or cultivation conditions. It is adjusted by a control box according to the area, and it is detected whether the required amount of flow from the source water is being supplied through a flow ticker and a manual ball valve installed at appropriate places in the water supply pipe, and if there is a failure. If appropriate, the amount of water supplied is adjusted by operating the manual ball valve, the water is uniformly mixed in a buffer tank, and then the desired amount of liquid is distributed to the cultivation facility. A device for diluting and distributing liquids, etc.