JPH0728617B2 - Nutrient solution sterilizer for hydroponics - Google Patents
Nutrient solution sterilizer for hydroponicsInfo
- Publication number
- JPH0728617B2 JPH0728617B2 JP63268424A JP26842488A JPH0728617B2 JP H0728617 B2 JPH0728617 B2 JP H0728617B2 JP 63268424 A JP63268424 A JP 63268424A JP 26842488 A JP26842488 A JP 26842488A JP H0728617 B2 JPH0728617 B2 JP H0728617B2
- Authority
- JP
- Japan
- Prior art keywords
- nutrient solution
- air
- tube
- generating tube
- ozone generating
- 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 - Fee Related
Links
Classifications
-
- Y02P60/216—
Landscapes
- Hydroponics (AREA)
- Physical Water Treatments (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、養液栽培用の養液殺菌装置に関するものであ
る。Description: TECHNICAL FIELD The present invention relates to a nutrient solution sterilizer for nutrient solution cultivation.
従来の技術 従来より多くの養液栽培装置が発表されてきたが、養液
栽培法の欠点は水媒伝染性の病気に対し、弱いという点
にある。とりわけ養液循環方式の養液栽培装置ではひと
たび１本でも羅病株が発生すると循環する養液を介し
て、同一流路系にある作物のすべてに感染し、全滅の事
態に見舞われることも少なくない。2. Description of the Related Art Conventionally, many hydroponic cultivation apparatuses have been announced, but the drawback of the hydroponic cultivation method is that they are weak against waterborne diseases. In particular, in the nutrient solution cultivator of the nutrient solution circulation type, once even one strain of Rao disease occurs, all of the crops in the same flow path system are infected through the circulating nutrient solution, which may lead to the eradication. Not a few.
発明が解決しようとする課題 しかしながら一般に、農業用水耕栽培では雑菌の飛来を
防止する手段もなく、温度や水分などの揃った条件下で
雑菌の繁殖を抑える方法もない。また農薬を使用するに
しても、病原菌の増殖・感染を抑制するためには栽培の
全期間を通じて処理を続けなければならないという問題
点がある。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, generally, in hydroponics for agriculture, there is no means for preventing the invasion of bacteria, and there is no method for suppressing the growth of bacteria under conditions of uniform temperature and moisture. Even if a pesticide is used, there is a problem that the treatment must be continued throughout the cultivation period in order to suppress the growth and infection of pathogenic bacteria.
本発明は、かかる点に鑑み、廉価で簡易な養液栽培用の
養液殺菌装置を提供する事を目的とする。In view of such a point, the present invention has an object to provide an inexpensive and simple nutrient solution sterilizer for nutrient solution cultivation.
課題を解決するための手段 循環型養液栽培装置の流路にある養液タンクから栽培ベ
ッドに到る養液供給パイプの一部から分岐させた揚水筒
を立て、その中心に紫外線発光管、その周囲にエアーを
流す構造のオゾン発生管、さらにその周囲に前記エアー
から変化したオゾンを含むエアーを底部より細かい多数
の出口から放出させ、かつ前記養液供給管分岐部に接続
し流入する養液を上記放出エアーより成る気泡で揚水
し、その揚水した養液を前記養液タンクへ還流する揚水
筒と、揚水筒の内側オゾン発生筒の外壁面を払拭する気
泡上向流利用の機構、かつ紫外線発光管およびエアーを
同期させ間歇駆動させる制御機構を備えた養液栽培用の
養液殺菌装置である。Means for Solving the Problems A pumping cylinder diverged from a part of the nutrient solution supply pipe that reaches the cultivation bed from the nutrient solution tank in the flow channel of the circulation type nutrient culture device is set up, and an ultraviolet light emitting tube is placed at the center of the pump. An ozone generating pipe having a structure in which air flows around it, and air that contains ozone changed from the air around it is discharged from a large number of outlets that are smaller than the bottom part, and is connected to the nutrient solution supply pipe branch part and flows in. The liquid is pumped by air bubbles consisting of the released air, and a pumping cylinder that recirculates the pumped nutrient solution to the nutrient solution tank, and a mechanism of bubble upward flow utilization that wipes the outer wall surface of the ozone generating cylinder inside the pumping cylinder, Further, it is a nutrient solution sterilizer for nutrient solution cultivation, which is equipped with a control mechanism for intermittently driving the ultraviolet light emitting tube and air in synchronization.
作用 本発明は前記した構成により、循環型養液栽培装置の養
液タンクから栽培ベッドへ向う養液供給系路から養液の
一部をとり、それを紫外線と、その紫外線を利用し発生
させたオゾンにより滅菌した後養液タンクへと還流する
事により循環養液を常に病菌濃度を低く保持させる。Action The present invention, with the above-mentioned configuration, takes a part of the nutrient solution from the nutrient solution supply system path from the nutrient solution tank of the circulation type nutrient solution cultivation apparatus to the cultivation bed, and generates it using ultraviolet rays and the ultraviolet rays. By sterilizing with ozone and then returning to the nutrient solution tank, the circulating nutrient solution always keeps the bacterium concentration low.
また、上記オゾンを含むエアーを殺菌装置内の揚水筒下
端より発泡放出する事に揚水筒中の養液に気泡を含む上
向流を生じさせ、養液を養液タンクへと汲み上げる。さ
らに、この殺菌装置を１日当り全養液１〜５循環量（装
置通過処理液が全養液の１〜５倍量）ぐらいの時間に間
歇運転するよう制御し、その運転開始の養液上向流を用
い揚水筒への紫外線照射を良好に保つため、オゾン発生
管外筒を機械的に払拭する機構を駆動させるものであ
る。Further, the air containing ozone is foamed and discharged from the lower end of the pump in the sterilizer to generate an upward flow containing bubbles in the nutrient solution in the pump, and the nutrient solution is pumped to the nutrient tank. Furthermore, the sterilizer is controlled to operate intermittently at a time of about 1 to 5 circulation of the total nutrient solution per day (1 to 5 times the amount of the treatment solution passing through the total nutrient solution), and the nutrient solution at the start of the operation is controlled. In order to keep the irradiation of ultraviolet rays to the pumping tube good by using the countercurrent, a mechanism for mechanically wiping the outer cylinder of the ozone generating tube is driven.
実施例 第１図は本発明の実施例における養液殺菌装置の断面図
を示したものである。第１図の１は養液タンク、２は養
液供給パイプ、３は100V,2Wの253.7nm紫外線ピークをも
つ紫外線発光管、４はエアーブロア、５はオゾン発生管
６へエアーを吹込む吸込管、７はオゾン発生管６からオ
ゾンを含むエアーを出す吹出管、８は前記吹出管７から
出たオゾンを含むエアーを揚水筒９の底部のエアコーン
10より放出するための送気管、11は揚水筒中をエアリフ
トで揚水された養液を養液タンク１中へ注水する注水
口、12はブロア４、紫外線発光管３を同期し間歇駆動さ
せる制御装置、13は間歇揚水される養液の上向流を用い
オゾン発生管６外壁を払拭するため外周に翼を、オゾン
発生管外壁接触部には刷毛を有する払拭機構となってい
る。Embodiment FIG. 1 shows a sectional view of a nutrient solution sterilizer in an embodiment of the present invention. In FIG. 1, 1 is a nutrient solution tank, 2 is a nutrient solution supply pipe, 3 is an ultraviolet ray emitting tube having a 253.7 nm ultraviolet ray peak of 100V, 2W, 4 is an air blower, and 5 is a suction tube for blowing air into the ozone generating tube 6. Reference numeral 7 denotes a blow-out pipe for ejecting air containing ozone from the ozone generating pipe 6, and 8 denotes an air cone at the bottom of the water pump 9 for feeding air containing ozone emitted from the blow-out pipe 7.
An air supply pipe for discharging from 10; a water injection port for injecting a nutrient solution pumped by an air lift into a nutrient solution tank 1 into the pump; a control device 12 for intermittently driving the blower 4 and the ultraviolet ray emitting tube 3 in synchronization with each other. , 13 are blades on the outer circumference for wiping the outer wall of the ozone generating tube 6 by using the upward flow of the nutrient solution to be intermittently pumped, and a wiping mechanism having a brush on the outer wall of the ozone generating tube.
１日に昼夜３時間づつ21回ブロア４および紫外線発光管
３をそれぞれ駆動させ紫外線発光管３の周囲にエアーが
供給されると、エアー中の酸素の一部がオゾン化し、混
合エアーとして揚水筒９中底部エアコーン10より放出さ
れる。その結果揚水筒９中の養液に気泡を生じさせ、そ
れにより上向流を発生させる。その上向流により払拭機
構13の翼により払拭機構13をわずかづつ上昇させ、払拭
機構13の刷毛によりオゾン発生管６の外壁を払拭し、紫
外線の透過率の低下を防止する。一定時間だけブロア
４、紫外線発光管３の稼働を制御装置12の作動により停
止されると、上方液面まで上昇していた前記払拭機構13
は自重で回転降下し、その時再び発光管壁を払拭しなが
らオゾン発生管下端で停止する。When the blower 4 and the ultraviolet arc tube 3 are respectively driven 21 times every day and night for 3 hours a day, and air is supplied around the ultraviolet arc tube 3, a part of oxygen in the air is turned into ozone, and as a mixed air, a water pump is installed. 9 It is discharged from the air cone 10 at the bottom of the center. As a result, bubbles are generated in the nutrient solution in the water pump 9, thereby generating an upward flow. The upward flow causes the blades of the wiping mechanism 13 to raise the wiping mechanism 13 little by little, and the brush of the wiping mechanism 13 wipes the outer wall of the ozone generating tube 6 to prevent the transmittance of ultraviolet rays from decreasing. When the operation of the blower 4 and the ultraviolet arc tube 3 is stopped by the operation of the control device 12 for a certain period of time, the wiping mechanism 13 has been elevated to the upper liquid level.
Rotates down by its own weight, at which time it again wipes the wall of the arc tube and stops at the lower end of the ozone generation tube.
上記動作を繰り返す事により養液中の病原菌を含む雑菌
濃度を通常栽培時の10-2〜10-4以下に抑止した状態で管
理することが可能である。第２図はトマトを夏期養液温
度を約25℃で栽培した場合根圏養液中の菌数の経時変化
を図示したものである。By repeating the above operation, it is possible to control the concentration of various bacteria including pathogenic bacteria in the nutrient solution in a state of being suppressed to 10 -2 to 10 -4 or less during normal cultivation. FIG. 2 shows the time course of the number of bacteria in the rhizosphere nutrient solution when tomatoes were cultivated at a summer nutrient solution temperature of about 25 ° C.
発明の効果 以上説明したように本発明によれば、駆動源はエアブロ
アと紫外線発光管のみで、紫外線照射と紫外線により発
生したオゾンにより養液を殺菌させ、かつその養液をオ
ゾンを含む上記エアーにより揚水し循環系へと戻し、か
つその揚水を間歇的に行わせる事による省エネルギー化
を図れるのみならず気泡上昇の間歇動作を利用してオゾ
ン発生管外壁につく藻類等の汚濁による紫外線の透過率
低下を防止する払拭機構を具備して、メンテナンスの簡
素化を図るものであり、その実用的価値は大である。As described above, according to the present invention, the drive source is only the air blower and the ultraviolet arc tube, and the nutrient solution is sterilized by ozone generated by ultraviolet irradiation and ultraviolet rays, and the nutrient solution contains ozone. Pumping and returning to the circulatory system, and by intermittently pumping it, energy can be saved, and the ultraviolet ray is transmitted by the pollution of algae etc. on the outer wall of the ozone generating tube by utilizing the intermittent operation of rising bubbles. It is equipped with a wiping mechanism that prevents a decrease in the rate, and simplifies maintenance, and its practical value is great.
第１図は本発明における一実施例の養液殺菌装置断面
図、第２図は本発明における実証実験中の雑菌濃度経日
変化を示す図である。 １……養液タンク、２……養液供給パイプ、３……紫外
線発光管、４……エアーブロア、５……エアー吹込管、
６……オゾン発生管、７……吹出管、８……送気管、９
……揚水筒、10……エアコーン、11……注水口、12……
制御装置、13……払拭機構。FIG. 1 is a sectional view of a nutrient solution sterilizer according to one embodiment of the present invention, and FIG. 2 is a diagram showing a daily change in the concentration of various bacteria during the demonstration experiment of the present invention. 1 ... nutrient solution tank, 2 ... nutrient solution supply pipe, 3 ... ultraviolet light emitting tube, 4 ... air blower, 5 ... air blowing tube,
6 ... Ozone generating tube, 7 ... Blowout tube, 8 ... Air supply tube, 9
…… Pumping cylinder, 10 …… Air cone, 11 …… Water injection port, 12 ……
Controller, 13 ... Wiping mechanism.
Claims (2)
に至る養液供給パイプの一部から分岐させた揚水筒を立
て、その中心に紫外線発光管、その周囲に漏れのないよ
うエアーを流しオゾン化させる構造のオゾン発生管、さ
らにその周囲に前記オゾン発生管から導かれたオゾンを
含むエアーを底部より細かい気泡として放出させ、かつ
前記供給パイプ分岐部に接続し流入する養液を前記気泡
によるエアリフトにより揚水し前記養液タンクへ還流す
る揚水筒、外側に揚水筒が間欠運転した時の上向流を用
い上昇する翼を、内側はオゾン発生管外壁に接触する刷
毛を具備して成る払拭機構を有する養液栽培用の養液殺
菌装置。1. A pumping cylinder diverged from a part of a nutrient solution supply pipe from a nutrient solution tank of a nutrient solution cultivation apparatus to a cultivation bed is set up, an ultraviolet light emitting tube is provided at the center thereof, and air is provided so as not to leak around the tube. An ozone generating tube having a structure for flowing ozonization, further causing the air containing ozone guided from the ozone generating tube to be discharged as fine bubbles from the bottom portion around the ozone generating tube, and connecting the nutrient solution flowing in by connecting to the supply pipe branching portion. It is equipped with a pumping cylinder that is pumped up by an air lift by air bubbles and returns to the nutrient solution tank, a wing that rises by using upward flow when the pumping cylinder operates intermittently on the outside, and a brush that contacts the outer wall of the ozone generating tube on the inside. A nutrient solution sterilizer for hydroponics having a wiping mechanism.
１日１〜３回、養液総量の１〜５倍の養液を毎回殺菌処
理する制御装置を具備して成る特許請求の範囲第１項記
載の養液栽培用の養液殺菌装置。2. An ultraviolet ray generating tube and an air glare are synchronized,
The nutrient solution sterilizer for nutrient solution cultivation according to claim 1, comprising a control device for sterilizing 1 to 5 times the total amount of nutrient solution each time 1 to 3 times a day.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63268424A JPH0728617B2 (en) | 1988-10-25 | 1988-10-25 | Nutrient solution sterilizer for hydroponics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63268424A JPH0728617B2 (en) | 1988-10-25 | 1988-10-25 | Nutrient solution sterilizer for hydroponics |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02113832A JPH02113832A (en) | 1990-04-26 |
| JPH0728617B2 true JPH0728617B2 (en) | 1995-04-05 |
Family
ID=17458295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63268424A Expired - Fee Related JPH0728617B2 (en) | 1988-10-25 | 1988-10-25 | Nutrient solution sterilizer for hydroponics |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0728617B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013103184A (en) * | 2011-11-15 | 2013-05-30 | Nec Lighting Ltd | Purification device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52117734A (en) * | 1976-03-31 | 1977-10-03 | Kokusai Electric Co Ltd | Sterilization of culture solution of nutritious solution cultivation |
| JPS6274484A (en) * | 1985-09-30 | 1987-04-06 | Toshiba Corp | Apparatus for purifying liquid |
| JPS63130186A (en) * | 1986-11-21 | 1988-06-02 | Fumio Denpo | Recirculation type sterilization and purification of liquid tank |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63141696U (en) * | 1987-03-09 | 1988-09-19 |
-
1988
- 1988-10-25 JP JP63268424A patent/JPH0728617B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52117734A (en) * | 1976-03-31 | 1977-10-03 | Kokusai Electric Co Ltd | Sterilization of culture solution of nutritious solution cultivation |
| JPS6274484A (en) * | 1985-09-30 | 1987-04-06 | Toshiba Corp | Apparatus for purifying liquid |
| JPS63130186A (en) * | 1986-11-21 | 1988-06-02 | Fumio Denpo | Recirculation type sterilization and purification of liquid tank |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02113832A (en) | 1990-04-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |