JPH0354535B2 - - Google Patents
Info
- Publication number
- JPH0354535B2 JPH0354535B2 JP61107187A JP10718786A JPH0354535B2 JP H0354535 B2 JPH0354535 B2 JP H0354535B2 JP 61107187 A JP61107187 A JP 61107187A JP 10718786 A JP10718786 A JP 10718786A JP H0354535 B2 JPH0354535 B2 JP H0354535B2
- Authority
- JP
- Japan
- Prior art keywords
- stock solution
- nutrient solution
- solution
- stock
- dilution water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000011550 stock solution Substances 0.000 claims description 108
- 239000000243 solution Substances 0.000 claims description 88
- 235000015097 nutrients Nutrition 0.000 claims description 82
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 46
- 239000012895 dilution Substances 0.000 claims description 45
- 238000010790 dilution Methods 0.000 claims description 45
- 238000002156 mixing Methods 0.000 claims description 43
- 239000003337 fertilizer Substances 0.000 claims description 18
- 239000001963 growth medium Substances 0.000 claims description 8
- 239000002609 medium Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 description 14
- 238000007865 diluting Methods 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 8
- 239000002689 soil Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
-
- Y02P60/216—
Landscapes
- Hydroponics (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、養液栽培などに用いる植物の栽培
養液調合装置に係り、特に、肥料などの栽培に必
要な養液の高濃度原液などの混合ならびに農業用
水などによる高濃度養液の希釈化に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a plant cultivation nutrient solution preparation device used for hydroponic cultivation, etc., and in particular, it relates to a plant cultivation nutrient solution preparation device for use in hydroponic cultivation, etc., and in particular, a highly concentrated undiluted solution of a nutrient solution necessary for cultivation such as fertilizer. and the dilution of highly concentrated nutrient solutions with agricultural water, etc.
植物の栽培には、土壌を用いて行う従来からの
土壌栽培に対して、繊維状物質などの人工的な培
養媒体に植物を植付けて、育成上必要な肥料など
の養分を水に溶かした養液を供給して栽培を行う
培地耕がある。
In contrast to conventional soil cultivation, which uses soil, plants are planted in artificial culture media such as fibrous materials, and nutrients such as fertilizers necessary for growth are dissolved in water. There is culture medium cultivation in which cultivation is carried out by supplying liquid.
このような培地耕は、土耕栽培に比較して衛生
的で、栽培植物ごとに育成上の最適条件を設定で
き、また、その栽培管理が行い易いなど、優れた
特徴を有しているが、養液濃度などの管理が極め
て重要である。 Compared to soil cultivation, this type of culture medium cultivation has excellent characteristics, such as being more hygienic, allowing optimal growth conditions to be set for each cultivated plant, and easy cultivation management. , management of nutrient solution concentration, etc. is extremely important.
第2図は、植物の一般的な養液栽培装置の概要
を示す。この養液栽培装置は、養液混合希釈化装
置2に農業用水などの希釈水Wrとともに、養液
Wmの基礎としての肥料などを溶かした高濃度養
液(以下原液Mという)を原液タンク4から供給
し、この原液Mと希釈水Wrとを混合して原液M
の濃度を希釈化することにより、植物の栽培に適
した肥料濃度に設定された養液Wmを得る。 FIG. 2 shows an outline of a general hydroponic apparatus for growing plants. This hydroponic cultivation device uses a nutrient solution mixing and diluting device 2 along with dilution water Wr such as agricultural water.
A highly concentrated nutrient solution (hereinafter referred to as undiluted solution M) containing dissolved fertilizer, etc. as the basis of Wm is supplied from the undiluted solution tank 4, and this undiluted solution M is mixed with dilution water Wr.
By diluting the concentration of , a nutrient solution Wm with a fertilizer concentration suitable for plant cultivation is obtained.
そして、この養液Wmは、圧送ポンプや濾過器
などからなる養液供給装置6および供給管路8を
経て栽培地10に送られる。栽培地10では、供
給管路8に取り付けた複数の分岐管12を、植物
14を植え付けたベツド16の近傍に配設し、各
分岐管12に対して植物単位ごとに供給ノズルと
してのドリツプノズル18を設ける。したがつ
て、供給管路8を通して圧送された養液Wmは、
分岐管12を経てドリツプノズル18から植物の
近傍に適下して供給される。 Then, this nutrient solution Wm is sent to the cultivation area 10 via a nutrient solution supply device 6 consisting of a pressure pump, a filter, etc., and a supply pipe line 8. In the cultivation area 10, a plurality of branch pipes 12 attached to the supply pipe line 8 are arranged in the vicinity of the bed 16 in which the plants 14 are planted, and a drip nozzle 18 as a supply nozzle is connected to each branch pipe 12 for each plant. will be established. Therefore, the nutrient solution Wm pumped through the supply pipe 8 is
It is dripped and supplied to the vicinity of plants from a drip nozzle 18 via a branch pipe 12.
このような養液栽培では、養液Wmの調合は、
植物14に対して最適な肥料配分および濃度など
に設定することが必要であり、その肥料配分や濃
度は、植物ごとに異なる上、その生育状態や気象
条件などによつても大きく異なつているので、そ
の都度、生育データや気象データを参照しなが
ら、養液Wmの肥料配分や濃度を設定することが
必要である。
In this type of hydroponic cultivation, the formulation of the nutrient solution Wm is as follows:
It is necessary to set the optimal fertilizer distribution and concentration for the plants 14, and the fertilizer distribution and concentration differ from plant to plant and also vary greatly depending on their growth state and weather conditions. In each case, it is necessary to set the fertilizer distribution and concentration of the nutrient solution Wm while referring to growth data and weather data.
従来、原液Mを希釈水Wrと混合して希釈化す
るための養液Wmの混合希釈化において、希釈水
Wrを吸入して引き込む流量wrに応じて原液量
mnを設定して養液Wmを得る希釈器では、希釈
水Wrの流量wrや圧力によつて原液Mの希釈倍率
が変動し、一定の養液Wmの濃度を得ることがで
きず、自由に濃度変更を行うことができないもの
であつた。そこで、希釈倍率が変動した場合、原
液Mの肥料濃度を変更して対応しなければなら
ず、非常に面倒な作業を必要としていた。 Conventionally, in mixing and diluting the nutrient solution Wm for diluting the stock solution M by mixing it with the dilution water Wr, the dilution water
The amount of raw solution depends on the flow rate wr to inhale and draw Wr.
In a diluter that obtains the nutrient solution Wm by setting mn, the dilution ratio of the stock solution M fluctuates depending on the flow rate wr and pressure of the dilution water Wr, making it impossible to obtain a constant concentration of the nutrient solution Wm. It was not possible to change the concentration. Therefore, when the dilution ratio changes, it is necessary to change the fertilizer concentration of the stock solution M, which requires very troublesome work.
また、従来の養液Wmの調合を自動化したもの
として、養液混合希釈化装置2に一定量の希釈水
Wrを取り込んだ後、その中に特定濃度の原液M
を徐々に入れて養液Wmの濃度を濃度センサなど
を用いて監視しながら、必要な濃度を設定するも
のがある。これは、希釈水Wrを一定量単位で取
り込んで養液Wmを調合するので、濃度補正を連
続的に行う手数はないが、養液Wmの調合量が一
定量ごとに行われるので、調合した養液Wmの連
続的な供給制御を行うことができず、また、養液
Wmを一定の濃度に設定するためには、高価な濃
度センサが必要であつた。 In addition, as a way to automate the conventional preparation of nutrient solution Wm, a certain amount of dilution water is added to the nutrient solution mixing and diluting device 2.
After incorporating Wr, stock solution M with a specific concentration is added to it.
There is a method in which the necessary concentration is set by gradually adding Wm and monitoring the concentration of the nutrient solution Wm using a concentration sensor. This is because the nutrient solution Wm is prepared by taking in the dilution water Wr in fixed amounts, so there is no need to continuously correct the concentration. Continuous supply control of the nutrient solution Wm cannot be performed, and the nutrient solution
In order to set Wm to a constant concentration, an expensive concentration sensor was required.
そこで、この発明は、必要な濃度の養液を供給
される希釈水に対応して連続的に調合し、必要な
濃度を実現した植物の栽培養液調合装置の提供を
目的とする。 SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a plant cultivation nutrient solution mixing device that continuously mixes a nutrient solution with a required concentration in accordance with supplied dilution water to achieve the required concentration.
この発明の植物の栽培養液調合装置は、希釈水
Wrが供給される希釈水供給路(供給管路30)
と培地(栽培地10)に養液を供給すべき養液供
給路(供給路34)との間に介挿されて前記希釈
水供給路から希釈水を受け、この希釈水で第1又
は第2の原液Ma,Mb又は双方を希釈して養液
Wmを形成し、その養液を前記希釈水の水圧に応
じて前記培地側に流し出す養液混合希釈器22
と、前記第1の原液を溜める第1の原液タンク2
8Aと、前記第2の原液を溜める第2の原液タン
ク28Bと、前記第1の原液タンクと前記養液混
合希釈器との間の原液供給路に配置されて前記第
1の原液を前記養液混合希釈器に供給する第1の
定量吐出器26Aと、前記第2の原液タンクと前
記養液混合希釈器との間の原液供給路に配置され
て前記第2の原液を前記養液混合希釈器に供給す
る第2の定量吐出器26Bと、前記第1又は第2
の定量吐出器を駆動する駆動手段(定量吐出器駆
動回路32)と、前記希釈水供給路に配置されて
前記希釈水の流量を検出する流量センサ20と、
この流量センサからの流量データと、予め栽培条
件によつて設定される濃度データとから前記養液
混合希釈器に供給すべき前記第1又は第2の原液
の供給量を算出し、その算出結果に基づく制御出
力を発生し、この制御出力に応じて前記駆動手段
を通して前記第1又は第2の定量吐出器を動作さ
せ、前記第1の原液又は前記第2の原液又は双方
の原液を前記養液混合希釈器に供給させる原液量
制御装置24とを備えたことを特徴とするもので
ある。
The plant cultivation nutrient solution preparation device of this invention has a dilution water
Dilution water supply line where Wr is supplied (supply line 30)
and a nutrient solution supply path (supply path 34) that is to supply nutrient solution to the culture medium (cultivation area 10), receives dilution water from the dilution water supply path, and uses this dilution water to 2. Dilute the stock solution Ma, Mb or both to make a nutrient solution.
A nutrient solution mixing diluter 22 that forms Wm and flows out the nutrient solution to the medium side according to the water pressure of the dilution water.
and a first stock solution tank 2 for storing the first stock solution.
8A, a second stock solution tank 28B that stores the second stock solution, and a stock solution supply path between the first stock solution tank and the nutrient solution mixing diluter, and a second stock solution tank 28B that stores the second stock solution. A first quantitative discharge device 26A that supplies the liquid to the liquid mixing diluter is disposed in a liquid supply path between the second stock liquid tank and the nutrient liquid mixing diluter, and is arranged in a liquid supply path between the second liquid liquid and the liquid mixing diluter. a second quantitative dispenser 26B that supplies the diluter;
a driving means (a fixed-rate dispenser drive circuit 32) that drives the fixed-rate dispenser; a flow rate sensor 20 that is arranged in the dilution water supply path and detects the flow rate of the dilution water;
The supply amount of the first or second stock solution to be supplied to the nutrient solution mixing diluter is calculated from the flow rate data from this flow rate sensor and the concentration data set in advance according to the cultivation conditions, and the calculation result is generates a control output based on the control output, operates the first or second metering dispenser through the drive means in accordance with the control output, and supplies the first stock solution, the second stock solution, or both stock solutions to the culture medium. The present invention is characterized in that it includes a control device 24 for controlling the amount of stock solution supplied to the liquid mixing diluter.
この栽培養液調合装置によれば、養液Wmの濃
度設定および希釈Wrの流量に応じた原液量mnが
得られ、その原液量mnに設定された原液Ma,
Mbと希釈水Wrとを混合するので、希釈水Wrの
流量変動に即応して原液量mnが制御され、設定
された濃度の養液Wmの調合が連続的に行われ
る。
According to this cultivation nutrient solution mixing device, a stock solution amount mn can be obtained according to the concentration setting of the nutrient solution Wm and the flow rate of the dilution Wr, and the stock solution Ma, which is set to the stock solution amount mn, can be obtained.
Since Mb and the dilution water Wr are mixed, the amount mn of the stock solution is controlled in immediate response to fluctuations in the flow rate of the dilution water Wr, and the nutrient solution Wm of a set concentration is continuously prepared.
この場合、養液Wmの調合は、複数の原液Ma,
Mbを用いる場合には各原液Ma,Mbおよび希釈
水Wrとの混合希釈化、また、単一の原液Mを用
いる場合にはその原液Mと希釈水Wrとの混合希
釈化をいう。 In this case, the preparation of the nutrient solution Wm consists of multiple stock solutions Ma,
When Mb is used, it is mixed and diluted with each stock solution Ma, Mb and dilution water Wr, and when a single stock solution M is used, it is mixed and diluted with that stock solution M and dilution water Wr.
そして、この発明の植物の栽培養液調合装置に
おいて、原液Mは、成分の異なる第1および第2
の肥料原液(原液Ma,Mb)、または、肥料原液
およびPH補正原液からなり、養液Wmの設定濃度
および希釈Wrの流量wrに応じた成分またはPH値
構成に応じて第1および第2の原液Ma,Mbの
配合比率を設定すれば、所望の成分および濃度の
養液Wmを得ることができる。 In the plant cultivation nutrient solution preparation device of the present invention, the stock solution M is divided into first and second liquids having different components.
The fertilizer stock solution (stock solution Ma, Mb) or the fertilizer stock solution and the PH correction stock solution are used. By setting the blending ratio of stock solutions Ma and Mb, a nutrient solution Wm with desired components and concentration can be obtained.
また、この発明の植物の栽培養液調合装置にお
いて、原液供給手段は、原液を溜める原液タンク
28A,28Bと、原液量制御手段(原液量制御
装置24)および定量吐出器駆動回路32の出力
によつて制御される定量吐出器26A,26Bと
を備えれば、必要な量の原液Ma,Mbを確実に
養液混合希釈化手段(養液混合希釈器22)に供
給することができる。 In the plant cultivation nutrient solution mixing device of the present invention, the stock solution supply means is connected to the stock solution tanks 28A and 28B for storing the stock solution, the stock solution amount control means (the stock solution amount control device 24), and the output of the metering dispenser drive circuit 32. By providing the quantitative dischargers 26A and 26B that are controlled in this manner, necessary amounts of stock solutions Ma and Mb can be reliably supplied to the nutrient solution mixing and diluting means (the nutrient solution mixing and diluter 22).
第1図は、この発明の植物の栽培養液調合装置
の実施例を示す。
FIG. 1 shows an embodiment of the plant cultivation nutrient solution preparation device of the present invention.
特定濃度の養液Wmを得るための希釈水Wrに
は、たとえば、地下水、雨水などの農業用水を用
いる。この希釈水Wrは、図示していないタンク
などから希釈水供給路としての供給管路30を通
して連続的に供給されるが、供給管路30の途上
に、希釈水Wrの流量wrを検出する流量検出手段
としての流量センサ20が設置され、この流量セ
ンサ20によつて希釈水Wrの流量wrが電気的に
検出される。Vwrは希釈水Wrの流量wrを表わす
流量信号を示す。 For example, agricultural water such as groundwater or rainwater is used as the dilution water Wr for obtaining the nutrient solution Wm of a specific concentration. This dilution water Wr is continuously supplied from a tank or the like (not shown) through a supply pipe line 30 serving as a dilution water supply line. A flow rate sensor 20 is installed as a detection means, and the flow rate wr of the dilution water Wr is electrically detected by this flow rate sensor 20. Vwr indicates a flow rate signal representing the flow rate wr of dilution water Wr.
この希釈水Wrは、第1および第2の原液Ma,
Mbと混合するための養液混合希釈化手段として
配置された養液混合希釈器22に供給される。養
液混合希釈器22は、たとえば、供給管路30の
一部で構成するもの、供給管路30を構成する管
路に断面積の大きいエリアを形成したもの、また
は、供給管路とは別に養液Wmを調合しかつ貯留
する養液混合希釈化装置を設置したものでもよ
く、この実施例は供給管路30の一部に断面積の
大きい部分を設置して構成したものである。 This dilution water Wr contains the first and second stock solutions Ma,
The nutrient solution is supplied to a nutrient solution mixing and diluter 22 arranged as a nutrient solution mixing and diluting means for mixing with Mb. The nutrient solution mixing diluter 22 may be, for example, a part of the supply pipeline 30, a pipeline with a large cross-sectional area formed in the supply pipeline 30, or a separate unit from the supply pipeline. A nutrient solution mixing and diluting device for preparing and storing the nutrient solution Wm may be installed, and this embodiment is constructed by installing a portion with a large cross-sectional area in a part of the supply pipe line 30.
また、第1および第2の肥料原液Ma,Mbを
溜める原液貯留手段としての第1および第2の原
液タンク28A,28Bが設置されており、これ
ら原液タンク28A,28Bの原液Ma,Mbは、
電気的に制御される原液供給手段としての第1お
よび第2の定量吐出器26A,26Bを介して養
液混合希釈器22に供給される。原液Ma,Mb
の養液混合希釈器22への供給は、たとえば、定
量吐出器26A,26Bを通して必要な量の原液
MaまたはMbが重力または特定の圧力によつて
滴下するように設定される。 Further, first and second stock solution tanks 28A and 28B are installed as stock solution storage means for storing first and second fertilizer stock solutions Ma and Mb, and the stock solutions Ma and Mb in these stock solution tanks 28A and 28B are as follows:
The nutrient solution is supplied to the nutrient solution mixing diluter 22 via first and second quantitative dischargers 26A and 26B, which serve as electrically controlled stock solution supply means. Stock solution Ma, Mb
For example, the necessary amount of the stock solution is supplied to the nutrient solution mixing diluter 22 through the metering dispensers 26A and 26B.
Ma or Mb is set to drip by gravity or a certain pressure.
そして、流量センサ20で得られた流量信号
Vwrは、原液量制御手段として配置された原液
量制御装置24の原液量演算部241に加えられ
る。原液量演算部241は、刻々と変化する流量
信号Vwrによつて得られる流量データと、必要
に応じて設定された濃度Xnを表わす濃度データ
とから、その濃度Xnを得るに必要な原液量mnを
算出する。たとえば、この原液量演算部241
は、流量データと濃度データに対して、流量デー
タに応じた原液量データを記憶した記憶手段を設
置しておき、流量データと濃度データの入力によ
つて、必要な原液量データを読み出すようにして
もよい。 Then, the flow rate signal obtained by the flow rate sensor 20
Vwr is applied to the stock solution amount calculation unit 241 of the stock solution amount control device 24, which is arranged as a stock solution amount control means. The stock solution amount calculation unit 241 calculates the stock solution amount mn necessary to obtain the concentration Xn from the flow rate data obtained by the constantly changing flow rate signal Vwr and the concentration data representing the concentration Xn set as necessary. Calculate. For example, this stock solution amount calculation section 241
For the flow rate data and concentration data, a storage means is installed that stores the raw solution volume data according to the flow rate data, and the necessary raw solution volume data is read out by inputting the flow rate data and concentration data. It's okay.
この原液量演算部241によつて算出された原
液量データを表わす原液量信号Vmnは、原液量
供給制御部242に加えられて、必要な原液量を
供給するのに必要な原液制御信号Vcmを発生す
る。この場合、原液Ma,Mbについて配合比率
も同時に演算し、たとえば、濃度データに応じて
自動的に各原液Ma,Mbの配合比率を設定すれ
ば、濃度の決定に対して配合比が得られる。した
がつて、原液制御信号Vcmは、必要な濃度を設
定するための原液Ma,Mbの量と、その配合比
率を表わすデータ信号である。 The stock solution amount signal Vmn representing the stock solution amount data calculated by the stock solution amount calculation section 241 is added to the stock solution amount supply control section 242 to generate the stock solution control signal Vcm necessary to supply the necessary stock solution amount. Occur. In this case, by simultaneously calculating the blending ratio of the stock solutions Ma and Mb and automatically setting the blending ratio of each stock solution Ma and Mb according to the concentration data, for example, the blending ratio can be obtained for determining the concentration. Therefore, the stock solution control signal Vcm is a data signal representing the amounts of stock solutions Ma and Mb and their blending ratio for setting the required concentration.
この原液制御信号Vcmは、原液供給手段に対
する供給駆動手段として設置された定量吐出駆動
回路32に加えられ、定量吐出器駆動回路32は
原液制御信号Vcmに応じた駆動信号Va,Vbを出
力して各定量吐出器26A,26Bに加える。定
量吐出器26A,26Bは、原液制御信号Vcm
に設定された原液Ma,Mbの供給比率に対して
開閉時間が制御されて、希釈水Wrの流量wrに対
して設定濃度Xnを得るのに必要な量の原液Maま
た原液Mbあるいは双方が養液混合希釈器22に
供給される。 This stock solution control signal Vcm is applied to a metering discharge drive circuit 32 installed as a supply drive means for the stock solution supply means, and the metering dispenser drive circuit 32 outputs drive signals Va, Vb according to the stock solution control signal Vcm. Add to each metering dispenser 26A, 26B. The fixed quantity dispensers 26A and 26B receive the stock solution control signal Vcm
The opening/closing time is controlled according to the supply ratio of the stock solutions Ma and Mb set in The liquid is supplied to the liquid mixing diluter 22.
供給された原液Ma,Mbは、養液混合希釈器
22の内部で希釈水Wrの水流に応じて撹拌され
て必要な濃度の養液Wmが得られ、栽培地側に養
液供給路としての供給路34を通して供給され
る。その場合、養液Wmは、第2図に示したよう
に、養液供給装置6によつて必要な圧力で圧送さ
れる。 The supplied stock solutions Ma and Mb are stirred in the nutrient solution mixing diluter 22 according to the flow of the dilution water Wr to obtain the nutrient solution Wm of the required concentration, which is then used as a nutrient solution supply path on the cultivation field side. It is supplied through the supply path 34. In that case, the nutrient solution Wm is fed under pressure by the nutrient solution supply device 6 as shown in FIG. 2.
したがつて、このような養液調合装置によれ
ば、養液Wmの原液濃度が設定されると、希釈水
Wrの流量wrに応じて必要な量の原液Ma,Mbを
供給して調合し、希釈水Wrの流量変動に即応し
て必要な原液Ma,Mbの供給量を制御するので、
常に、安定した濃度の養液Wmが得られる。そし
て、このような濃度制御によれば、原液Ma,
Mbの濃度は一定でよく、混合希釈化タンクや濃
度センサを必要としないので、安価なシステムを
構成できる。また、原液量制御装置24は、マイ
クロコンピユータなどの演算処理装置で構成し、
原液量の制御を実現することができる。 Therefore, according to such a nutrient solution mixing device, once the concentration of the nutrient solution Wm is set, the dilution water is
The necessary amount of stock solutions Ma and Mb are supplied and mixed according to the flow rate wr of Wr, and the supply amount of the necessary stock solutions Ma and Mb is controlled in response to fluctuations in the flow rate of dilution water Wr.
A nutrient solution Wm with a stable concentration can always be obtained. According to such concentration control, the stock solution Ma,
Since the concentration of Mb can be kept constant and a mixing dilution tank or concentration sensor is not required, an inexpensive system can be constructed. In addition, the stock solution amount control device 24 is composed of an arithmetic processing device such as a microcomputer,
It is possible to control the amount of stock solution.
なお、実施例では、第1および第2の原液タン
ク28A,28Bを設置して二種の原液Ma,
Mbを用いた場合について説明したが、予め必要
な成分の肥料を配合して必要な原液タンクを設定
し、または、肥料間の化合による不都合を回避す
るために肥料ごとに原液タンクを設置して、肥料
を濃度設定に応じて配合してもよい。 In the embodiment, the first and second stock solution tanks 28A and 28B are installed to store two types of stock solutions Ma,
We have explained the case of using Mb, but it is possible to mix fertilizers with the necessary ingredients in advance and set up the necessary stock solution tank, or to install a stock solution tank for each fertilizer to avoid inconveniences caused by combinations of fertilizers. , fertilizer may be mixed according to the concentration settings.
また、この発明は、第1の原液タンク28Aに
肥料原液を貯留し、第2の原液タンク28BにPH
濃度補正原液を貯留すれば、PH濃度の補正に利用
できる。 Further, in this invention, the fertilizer stock solution is stored in the first stock solution tank 28A, and the PH is stored in the second stock solution tank 28B.
If the concentration correction stock solution is stored, it can be used to correct the PH concentration.
以上説明したように、この発明によれば、養液
の濃度設定に応じた希釈水の流量に対して必要な
原液量が演算され、その演算結果に基づいて原液
量を制御するので、希釈水の流量の変動に即応し
て原液量を制御でき、常に、設定された濃度の養
液を混合、希釈化して連続的な調合により培地に
連続供給を行うことができ、しかも、養液の濃度
を自由に設定し、かつ適正な濃度の養液を安定供
給することにより植物の育成を図ることができる
上、設備の小型化や設置面積の狭小化を図ること
ができる。
As explained above, according to the present invention, the necessary amount of stock solution is calculated for the flow rate of dilution water according to the concentration setting of the nutrient solution, and the amount of stock solution is controlled based on the calculation result. The amount of stock solution can be controlled immediately in response to fluctuations in the flow rate of the nutrient solution, and the nutrient solution at a set concentration can be constantly mixed, diluted, and continuously supplied to the culture medium through continuous preparation. By freely setting the nutrient solution and stably supplying a nutrient solution with an appropriate concentration, it is possible to grow plants, and it is also possible to downsize the equipment and reduce the installation area.
第1図はこの発明の植物の栽培養液調合装置の
実施例を示すブロツク図、第2図は植物の一般的
な養液栽培装置の概要を示すブロツク図である。
Wm……養液、Wr……希釈水、Ma……第1の
原液、Mb……第2の原液、20……流量セン
サ、22……養液混合希釈器、24……原液量制
御装置、26A……第1の定量吐出器、26B…
…第2の定量吐出器、28A……第1の原液タン
ク、28B……第2の原液タンク。
FIG. 1 is a block diagram showing an embodiment of the plant cultivation nutrient solution mixing device of the present invention, and FIG. 2 is a block diagram showing an outline of a general plant nutrient solution mixing device. Wm... Nutrient solution, Wr... Dilution water, Ma... First stock solution, Mb... Second stock solution, 20... Flow rate sensor, 22... Nutrient solution mixing diluter, 24... Stock solution amount control device , 26A...first fixed amount dispenser, 26B...
...Second quantitative dispenser, 28A...First stock solution tank, 28B...Second stock solution tank.
Claims (1)
液を供給すべき養液供給路との間に介挿されて前
記希釈水供給路から希釈水を受け、この希釈水で
第1又は第2の原液又は双方を希釈して養液を形
成し、その養液を前記希釈水の水圧に応じて前記
培地側に流し出す養液混合希釈器と、 前記第1の原液を溜める第1の原液タンクと、 前記第2の原液を溜める第2の原液タンクと、 前記第1の原液タンクと前記養液混合希釈器と
の間の原液供給器に設置されて前記第1の原液を
前記養液混合希釈器に供給する第1の定量吐出器
と、 前記第2の原液タンクと前記養液混合希釈器と
の間の原液供給路に配置されて前記第2の原液を
前記養液混合希釈器に供給する第2の定量吐出器
と、 前記第1又は第2の定量吐出器を駆動する駆動
手段と、 前記希釈水供給路に設置されて前記希釈水の流
量を検出する流量センサと、 この流量センサからの流量データと、予め栽培
条件によつて設定される濃度データとから前記養
液混合希釈器に供給すべき前記第1又は第2の原
液の供給量を算出し、この算出結果に基づく制御
出力に応じて前記駆動手段を通して前記第1又は
第2の定量吐出器を動作させ、前記第1の原液又
は前記第2の原液又は双方の原液を前記養液混合
希釈器に供給させる原液量制御装置と、 を備えたことを特徴とする植物の栽培養液調合装
置。 2 前記第1及び第2の原液は、成分の異なる肥
料原液、または、肥料原液およびPH補正原液から
なることを特徴とする特許請求の範囲第1項に記
載の植物の栽培養液調合装置。[Scope of Claims] 1. A dilution water supply channel that is inserted between a dilution water supply channel to which dilution water is supplied and a nutrient solution supply channel that is to supply nutrient solution to the culture medium to receive dilution water from the dilution water supply channel; a nutrient solution mixing diluter that dilutes the first or second stock solution or both with dilution water to form a nutrient solution, and flows out the nutrient solution to the medium side according to the water pressure of the dilution water; a first stock solution tank for storing the stock solution; a second stock solution tank for storing the second stock solution; a stock solution supply device installed between the first stock solution tank and the nutrient solution mixing diluter; a first quantitative discharge device for supplying a first stock solution to the nutrient solution mixing diluter; a second quantitative discharge device for supplying the stock solution to the nutrient solution mixing diluter; a driving means for driving the first or second quantitative discharge device; installed in the dilution water supply path to control the flow rate of the dilution water. a flow rate sensor that detects the flow rate; and a supply amount of the first or second stock solution to be supplied to the nutrient solution mixing diluter based on the flow rate data from this flow rate sensor and concentration data set in advance according to cultivation conditions. is calculated, and the first or second metering dispenser is operated through the drive means in accordance with a control output based on the calculation result, and the first stock solution, the second stock solution, or both stock solutions are supplied to the culture medium. A plant cultivation nutrient solution blending device comprising: a stock solution amount control device for supplying to a solution mixing diluter; 2. The plant cultivation nutrient solution mixing device according to claim 1, wherein the first and second stock solutions consist of fertilizer stock solutions with different components, or a fertilizer stock solution and a PH correction stock solution.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61107187A JPS62262901A (en) | 1986-05-10 | 1986-05-10 | Preparation of culture nutrient solution of plant |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61107187A JPS62262901A (en) | 1986-05-10 | 1986-05-10 | Preparation of culture nutrient solution of plant |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS62262901A JPS62262901A (en) | 1987-11-16 |
JPH0354535B2 true JPH0354535B2 (en) | 1991-08-20 |
Family
ID=14452676
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP61107187A Granted JPS62262901A (en) | 1986-05-10 | 1986-05-10 | Preparation of culture nutrient solution of plant |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62262901A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2544425Y2 (en) * | 1992-01-24 | 1997-08-20 | 株式会社淀川製鋼所 | Nutrient solution preparation device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5068821A (en) * | 1973-10-20 | 1975-06-09 | ||
JPS5118840A (en) * | 1974-08-07 | 1976-02-14 | Mitsubishi Electric Corp | |
JPS5840455A (en) * | 1981-09-01 | 1983-03-09 | アイシン精機株式会社 | Cryogenic refrigerator |
-
1986
- 1986-05-10 JP JP61107187A patent/JPS62262901A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5068821A (en) * | 1973-10-20 | 1975-06-09 | ||
JPS5118840A (en) * | 1974-08-07 | 1976-02-14 | Mitsubishi Electric Corp | |
JPS5840455A (en) * | 1981-09-01 | 1983-03-09 | アイシン精機株式会社 | Cryogenic refrigerator |
Also Published As
Publication number | Publication date |
---|---|
JPS62262901A (en) | 1987-11-16 |
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