JPH0636848B2 - Seepage water intake device - Google Patents
Seepage water intake deviceInfo
- Publication number
- JPH0636848B2 JPH0636848B2 JP62251101A JP25110187A JPH0636848B2 JP H0636848 B2 JPH0636848 B2 JP H0636848B2 JP 62251101 A JP62251101 A JP 62251101A JP 25110187 A JP25110187 A JP 25110187A JP H0636848 B2 JPH0636848 B2 JP H0636848B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- pipe
- layer
- natural
- gravel layer
- 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 title claims description 137
- 239000008239 natural water Substances 0.000 claims description 23
- 239000004576 sand Substances 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 11
- 230000007423 decrease Effects 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 4
- 239000012466 permeate Substances 0.000 description 5
- 238000005755 formation reaction Methods 0.000 description 4
- 241001465754 Metazoa Species 0.000 description 3
- 238000009360 aquaculture Methods 0.000 description 3
- 244000144974 aquaculture Species 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000013535 sea water Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Filtration Of Liquid (AREA)
- Farming Of Fish And Shellfish (AREA)
Description
【発明の詳細な説明】 「産業上の利用分野」 本発明は、海底や湖底等の地層の水底表面を移動状態に
ある自然水の浸透性を良好に構成して水産動植物の養殖
用水などに使用する清澄な水の取水装置に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION "Industrial field of application" The present invention provides water for aquaculture of animals and plants, etc., which has good permeability of natural water that is in a moving state on the water bottom surface of the seabed or lake bottom. The present invention relates to a clear water intake device used.
「従来の技術」 従来の浸透水の取水装置は、海岸や湖岸等の近くの陸地
に井戸を設け、その井戸に浸透してきた水を揚水機（ポ
ンプ）で汲上げる手段と、海岸や湖岸等から海底や湖底
等に向けて斜めにボーリングし、海底や湖底等の地層に
スリット付きの取水管を差し込み、ポンプと連結して取
水する手段が存在する。"Prior art" Conventional infiltration water intake equipment has a well on the land near the coast or lake shore, and means for pumping the water that has permeated the well with a pump (shore), lake shore, etc. There is a means to make an oblique borehole from the bottom to the bottom of the sea or lake, insert an intake pipe with a slit into the stratum such as the bottom of the sea or the bottom of the lake, and connect it with a pump to take water.
「発明が解決しようとする問題点」 上記従来の取水手段は、海岸及び海底の地層の構成状況
により、浸透水の取水可能量に大きな差異があり、立地
条件に大きく左右される弱点がある。[Problems to be Solved by the Invention] The above-mentioned conventional water intake means has a large difference in the amount of permeated water that can be taken in, depending on the compositional conditions of the coastal and seabed formations, and has a weakness that is greatly affected by site conditions.
また、多量の取水が可能な立地条件にあったとしても、
多量取水を長期間、継続すると取水量が次第に低下し、
やがて取水不能となる問題点を有していた。In addition, even if the location conditions allow a large amount of water intake,
If a large amount of water is continued for a long period of time, the water intake will gradually decrease,
There was a problem that water could not be taken soon.
「問題点を解決するための手段」 本発明は、上記のような問題点を解決するためになされ
たもので、次のような手段を講じたものである。"Means for Solving Problems" The present invention has been made to solve the above problems and takes the following means.
本発明は、自然水(1) が移動状態にある海底や湖底など
の水底地層(4) に、底面および側面を有する有底状の隔
壁体(5) を形成し、 この隔壁体(5) 内に自然水(1) が浸透しやすい砂れき層
(6) を構成し、 上記水底地層(4) に露呈している浸透面となる濾面(7)
をほぼ水底表面(3) と同一または低い位置に形成すると
ともに、砂れき層(6) の最下層に集水管(9) を配設し、
該集水管(9) を地上に設けたポンプを介して送水管(13)
と連結し、 この送水管(13)より給水管(15)を介して水位検知器(17)
を有し、かつ水底地層(4) の水面(2) よりも上位に配置
した貯水槽(16)に連結し、 集水管(9) からの自然水(1) の集水量が減少したときに
貯水槽(16)より上記濾面(7) 及び砂れき層(6) で濾過し
た逆洗水を供給する配水管(18)を連結したものである。According to the present invention, a bottomed partition wall body (5) having a bottom surface and a side surface is formed on a water bottom layer (4) such as a seabed or a lake bottom where natural water (1) is in a moving state. Gravel layer in which natural water (1) easily penetrates
(6), which is the filtration surface (7) that is the permeation surface exposed to the above-mentioned submarine formation (4).
Is formed at the same or lower position as the water bottom surface (3), and the water collecting pipe (9) is arranged at the bottom of the sand gravel layer (6).
Water pipe (13) via a pump installed above the water collection pipe (9)
The water level detector (17) is connected from this water pipe (13) through the water supply pipe (15).
When the amount of natural water (1) from the water collection pipe (9) decreases, the water is connected to the water tank (16) that is located above the water surface (2) of the bottom layer (4). A water distribution pipe (18) is connected from the water storage tank (16) to supply the backwash water filtered by the filter surface (7) and the sand gravel layer (6).
このような手段を講じたことにより、自然の水底地層の
水底表面の一部を移動状態にある自然水が浸透しやすい
ように人為的に改造したうえで、浸透水の取水を可能な
状態とし、多量の取水の結果、浸透水量が低下した場合
には、濾過水を逆流させることにより、地層の締まりや
水底表面に付着した泥やプランクトンを開放し、水底地
層を容易に復元することができる浸透水の永続的な取水
装置を提供することにある。By taking such measures, a part of the bottom surface of the natural bottom layer is artificially modified so that the moving natural water can easily permeate, and then the permeated water can be taken in. When the amount of permeated water decreases as a result of a large amount of water intake, the filtered water is allowed to flow backwards to release the mud and plankton adhering to the surface of the bed and mud and plankton on the surface of the bed. It is to provide a permanent water intake device for permeated water.
「発明の実施例」 本発明の実施例を図面にもとづいて説明する。Embodiments of the Invention Embodiments of the present invention will be described with reference to the drawings.
図面は、本発明の実施例に係る取水装置の系統説明図で
ある。図において、１は海底や湖底等の移動状態にある
自然水で、実施例では海水を示してあり、以下、海水及
び海底について説明する。２はその水面で、３は水底表
面で、４は水底地層である。Drawing is a system explanatory view of the water intake device which concerns on the Example of this invention. In the figure, reference numeral 1 denotes natural water that is in a moving state such as the seabed or lake bottom. In the embodiment, seawater is shown. The seawater and the seabed will be described below. 2 is the water surface, 3 is the water bottom surface, and 4 is the water bottom stratum.
この水底地層４には、底面及び側面を有し、上面が開放
状態の有底状の隔壁体５が埋設形成されている。この隔
壁体５は、埋設されている水底地層４の周囲より海水が
浸透しないものであるば、その材質や形状は限定される
ものではない。この隔壁体５内には、砂層・砂利層を順
次積層した砂れき層６が形成されており、その上面には
浸透面７となる濾面が形成されている。浸透面７は水底
表面３とほぼ同一か、あるいは水底表面３より低い位置
で水底地層４に露呈して形成されている。そのために、
隔壁体５内には浸透面７のみから自然水１が砂れき層６
に浸透するようになっている。The bottom layer 5 having a bottom surface and side surfaces and an open upper surface is embedded in the water bottom layer 4. The material and shape of the partition wall body 5 are not limited as long as seawater does not permeate from around the buried water bottom stratum 4. In this partition body 5, a gravel layer 6 in which a sand layer and a gravel layer are sequentially laminated is formed, and a filtration surface serving as a permeation surface 7 is formed on the upper surface thereof. The permeation surface 7 is formed to be almost the same as the water bottom surface 3 or exposed to the water bottom formation 4 at a position lower than the water bottom surface 3. for that reason,
In the partition wall 5, natural water 1 is rubbed 6 from the permeation surface 7 only.
To penetrate into.
この隔壁体５内の砂れき層６の最下層には、複数個の穴
１０を穿設した集水管９の一端９ａが配設されており、
集水管９の他端は、地上８に設けた導水管１１に連結さ
れ、ポンプ１２を介して送水管１３に連結され、移動状
態にある自然水１を集水して水産動植物の養殖用水とし
て送水するようになっている。そして、集水管９の他端
と導水管１１との間には第１仕切弁１４が設けられてい
る。また、送水管１３の途中には給水管１５が配置され
ており、給水管１５の他端は貯水層１６に連結されてい
る。貯水層１６は、地上８に設置されており、水面２か
ら３〜５ｍの高さ位置に設置されている。この貯水層１
６には該層１６内の水面の最低と最高とを検知する水位
検知器１７が形成されており、貯水層１６内の水位を一
定に保つように構成されており、この貯水槽１６は、水
底地層４の水面２よりも上位位置となるように配置され
ている。One end 9a of a water collecting pipe 9 having a plurality of holes 10 is arranged in the lowermost layer of the gravel layer 6 in the partition wall body 5,
The other end of the water collecting pipe 9 is connected to a water guiding pipe 11 provided on the ground 8, and is connected to a water feeding pipe 13 via a pump 12, and collects the moving natural water 1 as aquaculture water for aquatic animals and plants. It is designed to send water. A first sluice valve 14 is provided between the other end of the water collection pipe 9 and the water conduit 11. A water supply pipe 15 is arranged in the middle of the water supply pipe 13, and the other end of the water supply pipe 15 is connected to the water storage layer 16. The water reservoir 16 is installed on the ground 8 and at a height of 3 to 5 m from the water surface 2. This reservoir 1
A water level detector 17 for detecting the minimum and maximum of the water surface in the layer 16 is formed in 6 and is configured to keep the water level in the water storage layer 16 constant. It is arranged so as to be located above the water surface 2 of the water bottom stratum 4.
貯水層１６と集水管９との間には、排水管１８が連結さ
れており、集水管９からの自然水１の集水量が減少した
ときに貯水層１６より逆洗水を供給するようになってい
る。また、排水管１８の途中には第２仕切弁１９が設け
られている。A drain pipe 18 is connected between the water storage layer 16 and the water collection pipe 9 so that backwash water is supplied from the water storage layer 16 when the amount of natural water 1 collected from the water collection pipe 9 decreases. Has become. A second sluice valve 19 is provided in the middle of the drain pipe 18.
上記のポンプ１２と第１仕切弁１４との間には、障壁体
５内の砂れき層６の浸透水の集水量が減少した場合に動
作する圧力スイッチ２０が設けられている。該スイッチ
２０により動作するタイマー２１は、制御部２２に接続
され、ポンプ１２の始動停止と、第１及び第２の仕切弁
１４，１９の開閉成を制御するようになっている。A pressure switch 20 is provided between the pump 12 and the first sluice valve 14 and operates when the amount of permeated water collected in the gravel layer 6 in the barrier body 5 decreases. The timer 21 operated by the switch 20 is connected to the control unit 22 and controls the start and stop of the pump 12 and the opening and closing of the first and second sluice valves 14 and 19.
なお、タイマー２１と制御部２２は、逆洗操作を自動化
するためのもので、操作を手動により行う場合には必要
としないものである。The timer 21 and the control unit 22 are for automating the backwash operation and are not necessary when the operation is performed manually.
「実施例の作用」 上記実施例の作用について説明する。"Operation of Embodiment" The operation of the above embodiment will be described.
予め第１仕切弁１４が開放され、第２仕切弁１９は閉成
されている。そこで、ポンプ１２を作動させると、集水
管９には吸引力が作用するので、人為的に設けられた隔
壁体５内の砂れき層６に浸透した自然水１は、集水管９
一端９ａに穿設された複数個の穴１０より集水される。The first sluice valve 14 is opened in advance and the second sluice valve 19 is closed. Therefore, when the pump 12 is operated, a suction force acts on the water collection pipe 9, so that the natural water 1 that has penetrated into the gravel layer 6 in the partition wall 5 artificially provided is not collected.
Water is collected from a plurality of holes 10 formed at one end 9a.
このとき、隔壁体５の内部は負圧となり自然水１が浸透
面７から砂層・砂利層を順次浸透し砂れき層６に補給さ
れるが、その際、水柱の浮泥やプランクトン等の懸濁物
は、浸透面７で濾過される。そのために、この浸透面７
にはこれらの懸濁物が膜状に堆積し自然水１の通過を妨
げることにより、砂れき層６全体にも下向きの圧力が加
わり、砂の粒子間の間隔も縮小されるため浸透する単位
時間当たりの集水量は、総取水量に対応して減少するこ
ととなる。At this time, the inside of the partition wall 5 becomes a negative pressure, and natural water 1 permeates the sand layer / gravel layer sequentially from the permeation surface 7 and is replenished to the gravel layer 6. At that time, suspension of mud or plankton in the water column The material is filtered at the permeation surface 7. Therefore, this penetration surface 7
These suspensions accumulate in the form of a film and impede the passage of the natural water 1, so that downward pressure is also applied to the entire sand gravel layer 6 and the interval between the sand particles is also reduced. The amount of water collected per unit will be reduced corresponding to the total amount of water intake.
この低下した浸透水量を復元するためには、上述の浮泥
等の堆積や砂粒子の締まりによ浸透抵抗を開放する必要
がある。その為には、集水管９から砂れき層６に対して
水を逆に送り込むことにより、砂れき層６を攪乱し砂の
粒子の間隔を復元させると共に、浸透面７に堆積した泥
やプランクトンを自然水１中に飛散させることが出来
る。In order to restore the lowered amount of permeated water, it is necessary to release the permeation resistance by the accumulation of the above-mentioned floating mud or the clogging of sand particles. For that purpose, water is sent backward from the water collection pipe 9 to the gravel layer 6 to disturb the gravel layer 6 and restore the intervals of the sand particles, and at the same time, the mud and plankton accumulated on the permeation surface 7 are naturally recovered. Can be dispersed in water 1.
この結果、自然水１は再び砂れき層６により浸透して濾
過される。その浸透した清澄水は、開放状態の第１の仕
切弁１４を通過し、ポンプ１２から送水管１３より所定
の場所である水産動植物の養殖用水などに送水されて飼
育用水などとして利用される。また、送水管１３の清澄
水の一部は給水管１５を通って貯水槽１６に補充され
る。As a result, the natural water 1 permeates again through the gravel layer 6 and is filtered. The clarified water that has penetrated passes through the first sluice valve 14 in an open state, and is pumped from the pump 12 to the water for aquaculture of animals and plants at a predetermined place through the water pipe 13 to be used as water for breeding. Further, a part of the clear water in the water supply pipe 13 is replenished in the water tank 16 through the water supply pipe 15.
一方、砂れき層６の浸透面７の浸透抵抗が増大し洗浄が
必要となった場合には、導水管１１に取付けてある圧力
スイッチ２０が自動的に作動し、タイマー２１をスター
トさせると共に、制御部２２を動作させる。この制御部
２２の動作により、まず、ポンプ１２の作用を停止し、
次いで、第１仕切弁１４を閉成した後、第２仕切弁１９
を開成すると貯水槽１６の貯水が重力だけで排水管１８
と集水管９を通って流下し砂れき層６内の自然水１を下
から吹き上げる。この結果、砂れき層６の浸透面７が攪
乱・破壊され膜状に堆積した懸濁物は直ちに自然水１中
に拡散し、移動状態の自然水１中に流失される。On the other hand, when the permeation resistance of the permeation surface 7 of the gravel layer 6 increases and cleaning becomes necessary, the pressure switch 20 attached to the water conduit 11 is automatically operated to start the timer 21 and control it. The part 22 is operated. By the operation of the control unit 22, first, the operation of the pump 12 is stopped,
Next, after closing the first sluice valve 14, the second sluice valve 19
When the water is opened, the water in the water tank 16 is drained by gravity only.
The natural water 1 in the gravel layer 6 flowing down through the water collecting pipe 9 is blown up from below. As a result, the permeation surface 7 of the gravel layer 6 is disturbed / destroyed and the film-shaped suspension immediately diffuses into the natural water 1 and is washed away into the moving natural water 1.
これによって、浸透面７を再生するための洗浄時間は、
極めて短時間に終了することができる。Thereby, the cleaning time for regenerating the permeation surface 7 is
It can be completed in an extremely short time.
隔壁対５は、逆洗時において逆洗水が改造した地層以外
に流失せず真上方向にのみ上昇するように限定する作用
をもっているので、水を透過しない材質でなければなら
ないが、埋め込み型なので大きな力が加わらず、防水シ
ートやプラスチック板を用いて建設経費を軽減すること
ができる。The partition wall pair 5 has a function of limiting the backwash water so that the backwash water does not flow away to other than the modified strata and rises only in the direction directly above during the backwash. Therefore, the construction cost can be reduced by using a waterproof sheet or a plastic plate without applying a great force.
「発明の効果」 本発明は叙上のように、自然水が移動状態にある海底や
湖底などの水底地層に、底面および側面を有する有底状
の隔壁体を形成し、この隔壁体内に自然水が浸透しやす
い砂れき層を構成し、上記水底地層に露呈している浸透
面となる濾面をほぼ水底表面と同一または低い位置に形
成するとともに、砂れき層の最下層に集水管を配設し、
該集水管を地上に設けたポンプを介して送水管と連結
し、この送水管より給水管を介して水位検知器を有し、
かつ水底地層の水面よりも上位に配置した貯水槽に連結
し、集水管からの自然水の集水量が減少したときに貯水
槽より上記濾面及び砂れき層で濾過した逆洗水を供給す
る配水管を連結したものである。[Advantages of the Invention] As described above, the present invention forms a bottomed partition wall having a bottom surface and a side surface in a bottom layer such as a seabed or a lake bottom where natural water is in a moving state. A sand gravel layer that allows water to easily permeate is formed, and the filtration surface that is exposed to the above-mentioned bottom layer is formed at a position that is almost the same as or lower than the bottom surface of the water bottom, and a water collection pipe is placed at the bottom of the gravel layer. Then
The water collecting pipe is connected to a water supply pipe via a pump provided on the ground, and a water level detector is provided from the water supply pipe via a water supply pipe,
In addition, it is connected to a water storage tank located above the water surface of the bottom layer, and when the amount of natural water collected from the water collection pipe decreases, the water is supplied from the water storage tank to the backwash water filtered by the filter surface and the gravel layer. A water pipe is connected.
したがって、集水などする自然水が浸透面および砂れき
層で濾過した清澄水であるので、集水管やポンプなどの
中間機器内には浮遊物が混入することがなく、集水管や
送水管などに付着性の生物が着生せず、維持管理が容易
である。Therefore, since the natural water that collects water is clear water that has been filtered by the permeation surface and the gravel layer, suspended solids do not enter the intermediate equipment such as the water collection pipes and pumps. No adherent organisms will settle and maintenance is easy.
また、自然水が浸透しやすい水底地層を人為的に作るの
で、地層による立地条件の制約を受けることなく、取水
の規模も任意に設定することができる。In addition, since the bottom layer that artificial water easily penetrates is artificially created, the scale of water intake can be set arbitrarily without being restricted by site conditions due to the formation.
さらに、装置が水底表面下に埋没しているので、船舶の
航行などへの支障がなく、港の中や浅瀬にも設定でき、
水域の制約も受ないという効果も有する。Furthermore, since the device is buried under the surface of the bottom of the water, it does not hinder the navigation of vessels, and can be set in the harbor or in shallow water.
It also has the effect of not being restricted by water areas.
図面は本発明の実施例に係る取水装置の系統説明図であ
る。 １……自然水、 ３……水底表面、 ４……水底地層、 ５……隔壁体、 ６……砂れき層、 ７……浸透面、 ８……地上、 ９……集水管、 １２……ポンプ、 １３……送水管、 １６……貯水槽、 １８……排水管。Drawing is a system explanatory view of the water intake device which concerns on the Example of this invention. 1 ...... natural water, 3 ... water bottom surface, 4 ... water bottom stratum, 5 ... partition body, 6 ... sand layer, 7 ... penetration surface, 8 ... ground, 9 ... water collection pipe, 12 ... Pump, 13 ... Water pipe, 16 ... Water tank, 18 ... Drain pipe.
Claims (1)
どの水底地層(4) に、底面および側面を有する有底状の
隔壁体(5) を形成し、 この隔壁体(5) 内に自然水(1) が浸透しやすい砂れき層
(6) を構成し、 上記水底地層(4) に露呈している浸透面となる濾面(7)
をほぼ水底表面(3) と同一または低い位置に形成すると
ともに、砂れき層(6) の最下層に集水管(9) を配設し、
該集水管(9) を地上に設けたポンプを介して送水管(13)
と連結し、 この送水管(13)より給水管(15)を介して水位検知器(17)
を有し、かつ水底地層(4) の水面(2) よりも上位に配置
した貯水槽(16)に連結し、 集水管(9) からの自然水(1) の集水量が減少したときに
貯水槽(16)より上記濾面(7) 及び砂れき層(6) で濾過し
た逆洗水を供給する配水管(18)を連結した、ことを特徴
とする浸透水取水装置。1. A bottomed partition wall body (5) having a bottom surface and side surfaces is formed on a bottom layer (4) such as a seabed or a lake bottom where natural water (1) is in a moving state. The gravel layer in which natural water (1) easily penetrates
(6), which is the filtration surface (7) that is the permeation surface exposed to the above-mentioned submarine formation (4).
Is formed at the same or lower position as the water bottom surface (3), and the water collecting pipe (9) is arranged at the bottom of the sand gravel layer (6).
Water pipe (13) via a pump installed above the water collection pipe (9)
The water level detector (17) is connected from this water pipe (13) through the water supply pipe (15).
When the amount of natural water (1) from the water collection pipe (9) decreases, the water is connected to the water tank (16) that is located above the water surface (2) of the bottom layer (4). A permeated water intake system, characterized in that a water pipe (18) for supplying backwash water filtered by the filter surface (7) and the sand gravel layer (6) is connected from a water storage tank (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62251101A JPH0636848B2 (en) | 1987-10-05 | 1987-10-05 | Seepage water intake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62251101A JPH0636848B2 (en) | 1987-10-05 | 1987-10-05 | Seepage water intake device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0194910A JPH0194910A (en) | 1989-04-13 |
| JPH0636848B2 true JPH0636848B2 (en) | 1994-05-18 |
Family
ID=17217658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62251101A Expired - Lifetime JPH0636848B2 (en) | 1987-10-05 | 1987-10-05 | Seepage water intake device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0636848B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015001082A (en) * | 2013-06-14 | 2015-01-05 | 株式会社ナガオカ | Backwash device of sea bottom permeation water intake facility and method thereof |
| KR20160064452A (en) * | 2014-11-28 | 2016-06-08 | (주)동성 Naiki | Mobile rack |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6530205B2 (en) * | 2015-03-12 | 2019-06-12 | 日立造船株式会社 | Seepage water intake system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58112421U (en) * | 1982-01-27 | 1983-08-01 | 株式会社小松製作所 | Water filtration equipment for farmed fish |
-
1987
- 1987-10-05 JP JP62251101A patent/JPH0636848B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015001082A (en) * | 2013-06-14 | 2015-01-05 | 株式会社ナガオカ | Backwash device of sea bottom permeation water intake facility and method thereof |
| KR20160064452A (en) * | 2014-11-28 | 2016-06-08 | (주)동성 Naiki | Mobile rack |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0194910A (en) | 1989-04-13 |
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| EXPY | Cancellation because of completion of term |