JPH0325125B2 - - Google Patents
Info
- Publication number
- JPH0325125B2 JPH0325125B2 JP58245887A JP24588783A JPH0325125B2 JP H0325125 B2 JPH0325125 B2 JP H0325125B2 JP 58245887 A JP58245887 A JP 58245887A JP 24588783 A JP24588783 A JP 24588783A JP H0325125 B2 JPH0325125 B2 JP H0325125B2
- Authority
- JP
- Japan
- Prior art keywords
- tank
- water
- nutrient
- pipe
- sensor
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 235000015097 nutrients Nutrition 0.000 claims description 34
- 239000007788 liquid Substances 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000013019 agitation Methods 0.000 claims 1
- 239000003337 fertilizer Substances 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- Y02P60/216—
Description
【発明の詳細な説明】
本発明は養水のPH値、肥料濃度（EC濃度）の
ような化学的濃度をセンサタンクにおいて安定的
な測定値をうることを目的とするものである。DETAILED DESCRIPTION OF THE INVENTION The object of the present invention is to obtain stable measured values of chemical concentrations such as PH value of nutrient water and fertilizer concentration (EC concentration) in a sensor tank.
以下実施例について説明する。 Examples will be described below.
図において１は養水タンク、２は水耕槽、３は
苗、４は養水である。 In the figure, 1 is a water tank, 2 is a hydroponic tank, 3 is a seedling, and 4 is a water tank.
養水タンク１の養水４はポンプＰによつて供給
管６ａ，６ｂより水耕槽２に供給される。 The nutrient water 4 in the water nutrient tank 1 is supplied to the hydroponic tank 2 by a pump P through supply pipes 6a and 6b.
そして還流管７より養水タンク１に還流され
る。 The water is then refluxed to the water nutrient tank 1 through the reflux pipe 7.
８はセンサタンクで養水タンク１の上部に設置
され、供給管６ｂの分岐管９ａより養水の一部が
供給される。 A sensor tank 8 is installed at the upper part of the water nutrient tank 1, and a portion of the nutrient water is supplied from a branch pipe 9a of the supply pipe 6b.
センサタンク８の側壁上部の適所に排出管１０
が設けられ養水タンク１に向けて養水が落下す
る、そして養水タンクの養水は水位を一定の高さ
に保たれる。 A discharge pipe 10 is installed at a suitable location on the upper side wall of the sensor tank 8.
is provided, and the nutrient water falls toward the nutrient tank 1, and the water level of the nutrient water in the water tank is maintained at a constant level.
ＳはPHまたは肥料濃度のような化学的濃度を測
定するためのセンサである。センサからの測定回
路は図示していない
養水のPHを調節するためには調節液タンク１１
を複数個設けて酸性とするためには例えば燐酸、
硫酸を用い、アルカリ性とするためには水酸化カ
リ、炭酸カルシユウムなどの調節液５を用いる。
また肥料濃度を調節するためには前記タンク１１
に硫酸塩、硝酸カリ、硫酸マグネシユウム、第一
燐酸アンモニアなどの塩類を用いる。 S is a sensor for measuring chemical concentration such as PH or fertilizer concentration. The measurement circuit from the sensor is not shown. To adjust the pH of the nutrient water, use the adjustment liquid tank 11.
For example, phosphoric acid,
Sulfuric acid is used, and in order to make it alkaline, a regulating liquid 5 such as potassium hydroxide or calcium carbonate is used.
In addition, in order to adjust the fertilizer concentration, the tank 11
Salts such as sulfate, potassium nitrate, magnesium sulfate, and ammonium monophosphate are used for this purpose.
そして滴下管１２によつて養水タンク１内に必
要量を滴下して養水のPH値または肥料濃度（EC
濃度、ECとは電気伝導度の略字）を調節する。 Then, the necessary amount is dripped into the water tank 1 through the dripping pipe 12 to determine the pH value of the nutrient water or the fertilizer concentration (EC).
Adjust the concentration (EC is an abbreviation for electrical conductivity).
なお前記滴下管１２の下端部にはセンサタンク
８の排出管１０の出口に接近して設けることによ
り混合撹はんの一助ともなる。 Note that by providing the lower end of the dropping pipe 12 close to the outlet of the discharge pipe 10 of the sensor tank 8, it also helps in mixing and stirring.
また供給管６ｂからの分岐管９ａの途中より副
分岐管９ｂを設けてその出口を前記滴下管１２の
出口に近接して設ける。そして前記副分岐管９ｂ
の流下養水を養水タンク１に再び落下させて、前
記滴下管１２からタンク１に落下した調整液が養
水タンク１の養水の中に混合撹はんさせるように
する。なお各管の⊥印はコツクを表している。 Further, a sub-branch pipe 9b is provided in the middle of the branch pipe 9a from the supply pipe 6b, and its outlet is provided close to the outlet of the dropping pipe 12. and the sub-branch pipe 9b
The flowing nutrient water is allowed to fall again into the water nutrient tank 1, so that the adjustment liquid that has fallen into the tank 1 from the dripping pipe 12 is mixed and stirred into the nutrient water in the water nutrient tank 1. Note that the ⊥ mark on each tube represents a kotuku.
ところで、従来はセンサＳを養水タンク１に取
り付けていたが、この場合、滴下調節液５はタン
ク１内の養水４に即時には一様に分布しないので
センサの測定値は第２図ａで示すような山形突起
状となつて、その測定値が安定性を欠いていた。 By the way, in the past, the sensor S was attached to the water nutrient tank 1, but in this case, the dripping adjustment liquid 5 is not immediately uniformly distributed in the nutrient water 4 in the tank 1, so the measured value of the sensor is as shown in Fig. 2a. The measured values were unstable, forming a chevron-shaped protrusion as shown in the figure.
ところが、本発明では調節液の滴下管１２の出
口が前記副分岐管９ｂの出口および排出管１０の
出口に接近して設けてあるので、タンク１に落下
する調節液はタンク１内に於いて、十分一様に混
合撹拌され、かつ養水タンク１→ポンプＰ→分岐
管９ｂおよび排出管１０という循環流によつて養
水タンク１内の養水４が均質化されるという効果
がある。 However, in the present invention, the outlet of the adjusting liquid dripping pipe 12 is provided close to the outlet of the sub-branch pipe 9b and the outlet of the discharge pipe 10, so that the adjusting liquid falling into the tank 1 is , the nutrient water 4 in the water nutrient tank 1 is homogenized by the circulation flow from the nutrient tank 1 to the pump P to the branch pipe 9b and the discharge pipe 10.
そして供給管６ｂの養水取り入れ口は養水タン
ク１の底の方にあつてポンプＰによつて吸い上げ
るので、センサタンク８内の化学的濃度は一様と
なり、センサＳによる測定値は第２図ｂに示すよ
うに滴下量に比例してほぼ直線上に上昇して安定
する効果がある。 Since the nutrient water intake of the supply pipe 6b is located at the bottom of the water nutrient tank 1 and is sucked up by the pump P, the chemical concentration in the sensor tank 8 is uniform and the value measured by the sensor S is the second As shown in Figure b, there is an effect of increasing almost linearly in proportion to the amount of dripping and stabilizing it.
第１図は本発明装置の実施例の概要を示す正面
図、第２図は測定値の変化を示す線図である。
記号の説明、１……養水タンク、２……水耕
槽、４……養水、８……センサタンク、９……分
岐管、１１……調節液タンク、１２……滴下管、
Ｓ……化学的濃度測定用センサ。
FIG. 1 is a front view showing an outline of an embodiment of the apparatus of the present invention, and FIG. 2 is a diagram showing changes in measured values. Explanation of symbols, 1... Water nutrient tank, 2... Hydroponic tank, 4... Water nutrient tank, 8... Sensor tank, 9... Branch pipe, 11... Control liquid tank, 12... Dripping pipe,
S...Chemical concentration measurement sensor.
Claims (1)
に供給するための供給管６ｂに分岐管９ａ，９ｂ
を設け、管９ａはその流出口が化学的濃度検出用
のセンサタンクに養水を供給するような位置に配
設するとともに、管９ｂは養水が養水タンクに還
流するように設け、かつ前記センサタンクには化
学的濃度検出用のセンサＳを設けるとともに養水
タンクへの排出管１０を設け、また前記養水タン
クには化学的濃度調節液タンク１１から調節液を
供給する滴下管１２を設けるとともに、前記調節
液を供給する滴下管１２の出口を挾んでその両側
に排出管１０の出口および分岐管９ｂの出口を近
接して設け、もつて養水タンク１において養水４
中の調節液が混合撹拌と循環流によつて養水タン
ク内の養水４が均質化されることを特徴とする化
学的濃度測定器付水耕装置。1 Pump nutrient water 4 from water nutrient tank 1 to hydroponic tank 2
Branch pipes 9a and 9b are connected to the supply pipe 6b for supplying the
The pipe 9a is arranged in such a position that the outlet thereof supplies nutrient water to the sensor tank for detecting chemical concentration, and the pipe 9b is arranged so that the nutrient water flows back to the nutrient tank, and The sensor tank is provided with a sensor S for detecting chemical concentration, and is also provided with a discharge pipe 10 to the water nutrient tank, and the water tank is provided with a drip pipe 12 for supplying the adjustment liquid from the chemical concentration adjustment liquid tank 11. At the same time, an outlet of the discharge pipe 10 and an outlet of the branch pipe 9b are provided in close proximity to each other on both sides of the outlet of the drip pipe 12 for supplying the adjustment liquid, so that the nutrient water 4 in the water nutrient tank 1 is
1. A hydroponic device equipped with a chemical concentration measuring device, characterized in that the nutrient water 4 in the nutrient tank is homogenized by mixing and agitation of the regulating liquid therein and circulation flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58245887A JPS60137216A (en) | 1983-12-26 | 1983-12-26 | Hydroponic apparatus with chemical densitometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58245887A JPS60137216A (en) | 1983-12-26 | 1983-12-26 | Hydroponic apparatus with chemical densitometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60137216A JPS60137216A (en) | 1985-07-20 |
| JPH0325125B2 true JPH0325125B2 (en) | 1991-04-05 |
Family
ID=17140281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58245887A Granted JPS60137216A (en) | 1983-12-26 | 1983-12-26 | Hydroponic apparatus with chemical densitometer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60137216A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01215223A (en) * | 1988-02-20 | 1989-08-29 | Toshiba Corp | Hydroponic culture system apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5245577U (en) * | 1975-09-29 | 1977-03-31 | ||
| JPS5375033A (en) * | 1976-12-14 | 1978-07-04 | Matsushita Electric Ind Co Ltd | Automatic regulating method and device for composition of culture solution |
| JPS55148032A (en) * | 1979-05-09 | 1980-11-18 | Matsushita Electric Ind Co Ltd | Automatic regulating apparatus for culture medium composition |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5184947U (en) * | 1974-12-27 | 1976-07-07 |
-
1983
- 1983-12-26 JP JP58245887A patent/JPS60137216A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5245577U (en) * | 1975-09-29 | 1977-03-31 | ||
| JPS5375033A (en) * | 1976-12-14 | 1978-07-04 | Matsushita Electric Ind Co Ltd | Automatic regulating method and device for composition of culture solution |
| JPS55148032A (en) * | 1979-05-09 | 1980-11-18 | Matsushita Electric Ind Co Ltd | Automatic regulating apparatus for culture medium composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60137216A (en) | 1985-07-20 |
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