JPS63283712A - Rotary strainer for suction pipe - Google Patents
Rotary strainer for suction pipeInfo
- Publication number
- JPS63283712A JPS63283712A JP11974587A JP11974587A JPS63283712A JP S63283712 A JPS63283712 A JP S63283712A JP 11974587 A JP11974587 A JP 11974587A JP 11974587 A JP11974587 A JP 11974587A JP S63283712 A JPS63283712 A JP S63283712A
- Authority
- JP
- Japan
- Prior art keywords
- strainer
- dusts
- suction pipe
- rotary strainer
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 11
- 238000007667 floating Methods 0.000 claims abstract description 5
- 239000000428 dust Substances 0.000 claims description 22
- 238000005192 partition Methods 0.000 claims description 9
- 230000002262 irrigation Effects 0.000 claims description 7
- 238000003973 irrigation Methods 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000002352 surface water Substances 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
Landscapes
- Compressor (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
この発明は、河川、用水路又は湖等の護岸沿いに設置す
る取水用吸込管のストレーナにおいて、これを円筒形回
転式に構成し流水力及びポンプ吸込力により内設した羽
根板により回転させるとともに補助原動機を具備し、ス
トレーナ外周に設けたスクレーバにより流水に浮遊する
塵芥を除去する吸込管の回転式ストレーナ装置並びにそ
の工法に関するものである。[Detailed Description of the Invention] [Objective of the Invention] (Field of Industrial Application) This invention is a strainer for a water intake suction pipe installed along the seawall of a river, irrigation canal, lake, etc. This invention relates to a rotary strainer device for a suction pipe, which is rotated by an internal vane plate using flowing water power and pump suction force, and is equipped with an auxiliary motor, and which removes dust floating in flowing water by a scraper provided on the outer periphery of the strainer, and its construction method. It is something.
（従来の技術）
従来河川等から表流水の取水に際して吸込管に直接取付
けて使用されるものとしては、竹籠、サクションストレ
ーナ、フートバルブ及び金網等が一般に用いられている
。これらはある程度塵芥が吸着すると流入通路を閉塞し
抵抗損失となり、取水量の低下またはポンプ羽根車に対
しキャビテーションを起こす原因となる。従って常時人
力による管理と塵埃の除去作業を必要とする問題がある
次に配管途中に設ける塵芥除去方法としては、パケット
ストレーナ、流体サイクロン除塵機、自動回転濾過除塵
機等がある。これらは吸込配管に設けた場合負圧ライン
のため、塵芥の除去にはポンプを停止したり、人力で除
去したり又は特別の圧力水源を使用して飛散させたりし
なければならず、塵芥の多い所では実用上使用困難であ
った。(Prior Art) Bamboo cages, suction strainers, foot valves, wire meshes, and the like are commonly used as devices that are directly attached to suction pipes when drawing surface water from rivers, etc. When a certain amount of dust is adsorbed on these, the inflow passage is blocked, resulting in resistance loss, which causes a decrease in the amount of water intake or cavitation of the pump impeller. Therefore, there is a problem in that constant manual management and dust removal work is required.Next, methods for removing dust installed in the middle of the piping include packet strainers, hydrocyclone dust removers, automatic rotary filtration dust removers, and the like. When these are installed in the suction piping, they are negative pressure lines, so in order to remove the dust, it is necessary to stop the pump, remove it manually, or use a special pressure water source to blow it away. In many places, it is difficult to use it practically.
結果として確実な良策がないため沈砂池や沈澱池を設け
、高額な自動除塵掻上装置を設置したものもある。As a result, there are no reliable measures, so some have installed sand settling basins or sedimentation basins, and expensive automatic dust removal and scraping equipment.
又融雪の取水では水路の流入方尚に円筒金網を１／３〜
１／２水没させて流水を通過させ外周方向に濾過水を自
然流下させる方法は公知の通りである。In addition, for water intake from melting snow, a cylindrical wire mesh is installed at 1/3 to 1/2 of the inflow direction of the waterway.
The method of submerging 1/2 of the filter in water, passing running water, and allowing filtered water to naturally flow down in the outer circumferential direction is a known method.
さらに用水路の流れ方向の直角に水車と同様にドラムを
回転し、内側の濾過水を自然流下させる方法も考案され
ているが、河床に突起して河積を犯すものは用水路、河
川等では治水上、法規上設置が困難である。Furthermore, a method has been devised in which the drum is rotated at right angles to the flow direction of the irrigation canal, similar to a water wheel, and the filtered water inside flows down naturally. Moreover, it is difficult to install due to legal regulations.
（発明が解決しようとする問題点）
表流水の取水はその水量の前部を濾過することとなり、
上述のように砂礫は避けられても塵芥の除去が大きな問
題で、簡単にして確実な省力化された方法がなく苦労し
ている実情である。(Problem to be solved by the invention) When surface water is taken in, the front part of the water volume is filtered,
As mentioned above, even if sand and gravel can be avoided, the removal of dust is a big problem, and the current situation is that there is no simple, reliable, and labor-saving method.
そこでこの発明は、まず沈砂池等の大きな施設を設ける
ことなく河水路の護岸に小規模な取水路を設け、ポンプ
の吸込配管に直結接続して使用する回転式ストレーナ装
置を設置するものである。Therefore, this invention firstly establishes a small-scale intake channel on the bank of a river channel without installing a large facility such as a settling basin, and then installs a rotary strainer device that is used by directly connecting to the suction pipe of the pump. .
ポンプには羽根車の力によって吸込能力をもっており、
自然水頭に比較し大きなエネルギーである。小規模なス
トレーナであっても、網目、有効開口面積が小さくても
速度水頭を早めることが容易である０次の問題点は河川
、用水路または貯水池の場合に水位を一定に保つことが
難しいので水位の変動に対しても揚水機能を保つ必要が
ある。The pump has suction capacity due to the power of the impeller.
This is a large amount of energy compared to the natural water head. Even with a small strainer, it is easy to increase the velocity head even if the mesh and effective opening area are small.The zero-order problem is that it is difficult to maintain a constant water level in the case of rivers, irrigation canals, or reservoirs. It is necessary to maintain the pumping function even when the water level fluctuates.
浅くなったときでも吸込口に渦流又は大気に連通ずるこ
とのない条件を作ることである。The aim is to create conditions at the suction port that do not create vortices or communicate with the atmosphere even when the water becomes shallow.
塵芥は一般に水中を浮遊しており、比重や水抵抗等によ
って千差万別である。この発明は下層の塵芥もストレー
ナに吸着させて上層で処理するもので、ストレーナの開
口面積とポンプの吐出量によってストレーナの通過流速
が定まり、外圧とストレーナの内圧に圧力差を生じ、外
圧は水深が深い程高くなり塵芥の吸着が容易となり下層
の塵芥処理が可能となるようになっている。この回転式
ストレーナの中には吸込配管を挿入し、回転機能を有す
るため円筒形ストレーナの支持は塵芥の少ない内側で支
承して支障を防止し、常に水没して使用するため耐久性
を有する構造としている。Dust generally floats in water, and it varies greatly depending on specific gravity, water resistance, etc. In this invention, the dust in the lower layer is also adsorbed by the strainer and treated in the upper layer.The flow rate through the strainer is determined by the opening area of the strainer and the discharge amount of the pump, creating a pressure difference between the external pressure and the internal pressure of the strainer, and the external pressure is determined by the water depth. The deeper the layer is, the higher it becomes, making it easier to attract dust and making it possible to dispose of the dust in the lower layer. The suction pipe is inserted into this rotary strainer, and since it has a rotating function, the cylindrical strainer is supported on the inside where there is less dust to prevent problems, and it has a durable structure because it is always submerged in water. It is said that
設置方法としては、河川、用水路の流れ方向と直角に上
流より護岸に切込み、上流側導水路と取水井を連接し下
流側に中仕切壁を構設して下流排水路とし本流に合流さ
せる。回転式ストレーナの本体は取水井に設け、内股の
羽根板による回転運動によって上流方向から下流方向に
回転させ、中仕切壁上端に取付けたスクレーバにより付
着する塵埃を掻き落し、下流排水路から本流へ流下させ
る。回転動力は流水力とポンプ羽根車の吸込力を利用し
、ストレーナ内周に羽根板を設は下部吸込スカートを工
夫し下槽外周片方に開口してストレーナを自転させるも
のである。The installation method involves cutting into the bank from upstream at right angles to the flow direction of the river or irrigation canal, connecting the upstream headrace and intake well, and constructing a partition wall on the downstream side to form a downstream drainage channel and join the main stream. The main body of the rotary strainer is installed in the intake well, and is rotated from the upstream direction to the downstream direction by the rotary movement of the inner wing plate, and the scraper attached to the upper end of the partition wall scrapes off the dust that has adhered to it, and then flows from the downstream drainage channel to the main stream. Let it flow down. The rotational power is generated by the power of flowing water and the suction force of the pump impeller.The strainer is rotated by installing vanes on the inner periphery of the strainer and devising a lower suction skirt that opens on one side of the outer periphery of the lower tank.
なお流入水頭及びポンプ吐出量の変動に対応するため、
補助動力として小出力の駆動用減速機付電動機を装備し
、万一の水没に備えて水中仕様とする。そしてこれらの
機器は枠組に収納し堤体に支障のないようユニット形態
化しておく。In addition, in order to cope with fluctuations in inflow head and pump discharge volume,
It is equipped with a small-output drive motor with a reduction gear as auxiliary power, and is designed to be submersible in case of submersion. These devices will be housed in a framework and configured as a unit so as not to interfere with the embankment body.
（問題点を可決するための手段）
〔実施例〕
以下本発明の一実施例を図面にもとづき説明すると、河
川、用水路等の流れ方向（矢印）と直角方向に上流側導
水路（１）及び取水井（２）を構設し、さらに中仕切壁
（３）を設けて下流側排水路（４）を構設し、上記取水
井（２）には横形円筒形のＶ形スロットワイヤスクリー
ン（ｖ）から成り、左右２条のリング板（５）の間に多
数の羽根板（６）を内周に取付けた回転式ストレーナ（
７）を枠組（８）の中へ構設し、この内部へ護岸（Ｒ）
側に配設したポンプ吸込管（１０）の先端部（９）を逆
止弁（１１）を介して挿入し、該先端部（９）の側壁を
開口して吸込スカート（１２）を散設する。また吸込管
（１０）の外周において回転式ストレーナ（７）の一端
をローラ軸受（１３）とし、回転式ストレーナ（７）の
他端には水中軸受（１４）を設けて駆動スブロケッＩ−
（１５）を取付け、上部の枠組（８）に設置した減速機
付補助電動機（１６）へ駆動チェーン（１７）を連結す
る。さらに上記の中仕切壁（３）の上部には回転式スト
レーナ（７）の回転頂部外周に当接する幅広のスクレー
バ（１８）を装設して成る吸込管の回転式ストレーナ装
置である。なお図面において（１９）は回転式ストレー
ナ（７）の左右ガードリングである。又本実施例は横形
回転式ストレーナであるが、第５図、第６図に示すよう
に竪型回転式ストレーナも同様に可能である。(Means for resolving issues) [Example] An embodiment of the present invention will be described below based on the drawings.The upstream headrace (1) and A water intake well (2) is constructed, and a partition wall (3) is further provided to construct a downstream drainage channel (4), and a horizontal cylindrical V-shaped slot wire screen ( v), a rotary strainer (
7) is constructed inside the framework (8), and a seawall (R) is installed inside this.
The tip (9) of the pump suction pipe (10) disposed on the side is inserted through the check valve (11), the side wall of the tip (9) is opened, and the suction skirt (12) is installed. do. Further, on the outer periphery of the suction pipe (10), one end of the rotary strainer (7) is provided with a roller bearing (13), and the other end of the rotary strainer (7) is provided with a submersible bearing (14).
(15) and connect the drive chain (17) to the auxiliary electric motor (16) with reduction gear installed on the upper framework (8). Further, the above-mentioned partition wall (3) is provided with a wide scraper (18) on the upper part of the rotating top of the rotary strainer (7). In the drawings, (19) are the left and right guard rings of the rotary strainer (7). Further, although this embodiment uses a horizontal rotary strainer, a vertical rotary strainer as shown in FIGS. 5 and 6 is also possible.
（作用）
以上のように構成した本発明の回転式ストレーナは両端
をローラ軸受（１３）と水中軸受（１４）とによりそれ
ぞれ支承され、流水の速度水頭及びポンプ羽根車の吸込
み力とにより内周に連設する羽根板（６）に流入して回
転力を発生して自転するが、又流水量とポンプ吐出量の
変動に対しては減速機付補助電動機（１６）を適時に運
転してストレーナを回転させることもできるようになっ
ている。(Function) The rotary strainer of the present invention configured as described above is supported at both ends by a roller bearing (13) and an underwater bearing (14), and the inner circumference is The water flows into the vane plate (6) connected to the pump, generates rotational force, and rotates.In addition, the auxiliary electric motor (16) with a speed reducer is operated in a timely manner to deal with fluctuations in the flow rate and pump discharge amount. The strainer can also be rotated.
これにより目的の半ばをなす流水中に浮遊する塵芥の除
去については、河川の流れ方向と直角方向に上流導水路
を設けることにより、浮遊する塵芥は第一段階で大半が
下流へ分離される。導水路の流水に混入した塵芥は上流
導水路へ流れ込み、横型回転式ストレーナ（７）の回転
頂点を平常水位をもって喫水せしめ、ポンプの吸込力に
よりストレーナの表面に吸着する塵芥は下層から上層に
移行する。そして表面付近で喫水気密と真空破壊を繰返
しているため表面に吸着した塵芥は剥離しやすい状態に
なっている。ここで中仕切壁（３）に取付けた幅広のス
クレーバ（１８）により剥離して掻き取り、掻き取られ
た塵芥は下流側排水路（４）へ落下して流下し本流へ戻
されることになる。なお用水の用途によっては回転式ス
トレーナを構成するＶ形スロットワイヤスクリーン（Ｖ
）のスリット幅とスロットの大きさを変更して製作すれ
ば微細な塵芥まで除去することが可能である（発明の効
果）
このように本発明の吸込管の回転式ストレーナ装置によ
ると、第１にポンプの吸込管に直結し水没して使用する
回転式ストレーナにより、流水の上層は勿論下層の塵芥
もすべてストレーナ表面に吸着してスクレーバで°掻取
り流下させるため、塵芥の二次処理を不要とし管理労力
を省力化し、目的とする清浄な取水を安全確実に遂行可
能とする効果を奏するものである。また本取水工法は河
積に支障なく設置が可能で小規模のため、あらゆる河川
の取水に通して建設費も低廉であり、さらに吸込管端を
下層として河川の水位変動にも空気の巻込みを生ずるこ
となく低水位でも揚水を可能とする利点を有し、なお流
水やポンプ吐出量の変動に対しても対応できる小型の補
助動力を具備するなど幾多の効果をも発揮する優れた装
置並びにその工法である。As for the removal of floating debris in flowing water, which is half of the purpose, by providing an upstream conduit in a direction perpendicular to the flow direction of the river, most of the floating debris is separated downstream in the first stage. The dust mixed in the water in the headrace flows into the upstream headrace, and the rotating peak of the horizontal rotary strainer (7) is brought to the normal water level, and the suction force of the pump causes the dust adsorbed on the surface of the strainer to move from the lower layer to the upper layer. do. Since draft airtightness and vacuum breakage are repeated near the surface, dust adhering to the surface is easily peeled off. Here, a wide scraper (18) attached to the partition wall (3) is used to peel off and scrape off the debris, and the scraped debris falls into the downstream drainage channel (4) and flows down to be returned to the main stream. . Depending on the use of water, a V-shaped slot wire screen (V
) By changing the slit width and slot size, it is possible to remove even minute dust (effects of the invention) As described above, according to the suction pipe rotary strainer device of the present invention, The rotary strainer is connected directly to the pump's suction pipe and submerged in water, and all of the dust in the lower layer as well as the upper layer of the flowing water is adsorbed to the strainer surface and scraped off with a scraper, eliminating the need for secondary treatment of dust. This has the effect of saving management labor and making it possible to safely and reliably carry out the intended clean water intake. In addition, this water intake construction method can be installed without disturbing the river area and is small-scale, so construction costs are low as it can be used for water intake from any river.Furthermore, with the end of the suction pipe as the lower layer, air can be trapped even when the river water level fluctuates. This is an excellent device that has the advantage of being able to pump water even at low water levels without causing water damage, and also has a small auxiliary power that can respond to fluctuations in water flow and pump discharge, and has many other effects. This is the construction method.
図面は本発明の一実施例を示し、第１図は一部欠截の平
面図、第２図は一部欠截の第１図Ａ−Ａ線断面図、第３
図は第２図のＢ−Ｂ線断面図、第４図はストレーナのＶ
形スロットワイヤスクリーン切欠の拡大斜視図、第５図
は竪型回転式ストレーナ装置の実施例を示す縦断面図、
第６図は竪型回転式ストレーナ装置の横断面図である。
（１）・・上流側導水路 （２）・・取水井（３）・・
中仕切壁 （４）・・下流側排水路（５）・・リング板
（６）・・羽根板 （７）・・回転式ストレーナ （
８）・・枠組 （９）・・吸込管先端部 （１０）・・
吸込管 （１１）・・逆止弁 （１２）・・吸込スカー
ト（１３）・・ローラ軸受 （１４）・・水中軸受 （
１５）・・駆動スブロケッ） （１６） ・・減速機
付補助電動機 （１７）・・駆動チェーン （１８）
・・スクレーバ （１９）・・ガードリング （Ｒ）
・・護岸 （Ｖ） ・・Ｖ形スロットワイヤスクリー
ン
特 許出願人 株式会社 出 産
（外−名） 。
代理人弁理士 三 原 隆′：［（外−名）
第５図
第６図
手続補正書（自発）
昭和６２−年 ６月２９日
１、事件の表示
昭和６２年特 許願第１１９７４５号事件との関係
特許出願人
４、代 理 人 郵便番号７３０
５、 補正命令の日付 自発
６、 補正により増加する発明の数Ｏ
８、補正の内容
（１）明細書第４頁第７行目「前部」とあるを「全部」
と訂正する。
（２）明細書第４頁第１２行目「河水路」とあるを「河
川、用水路」と訂正する。The drawings show one embodiment of the present invention, and FIG. 1 is a partially cutaway plan view, FIG. 2 is a partially cutaway cross-sectional view taken along the line A-A in FIG. 1, and FIG.
The figure is a sectional view taken along the line B-B in Figure 2, and Figure 4 is the V of the strainer.
FIG. 5 is a vertical sectional view showing an embodiment of the vertical rotary strainer device;
FIG. 6 is a cross-sectional view of the vertical rotary strainer device. (1)...Upstream headrace (2)...Intake well (3)...
Partition wall (4)...Downstream drainage channel (5)...Ring plate (6)...Blade plate (7)...Rotary strainer (
8)...Framework (9)...Suction pipe tip (10)...
Suction pipe (11)...Check valve (12)...Suction skirt (13)...Roller bearing (14)...Underwater bearing (
15)...Drive block) (16)...Auxiliary motor with reducer (17)...Drive chain (18)
...Scraper (19) ...Guard ring (R)
... Seawall (V) ... V-shaped slot wire screen Patent applicant: Birth Co., Ltd. (foreign name). Representative Patent Attorney Takashi Mihara': [(Foreign Name) Figure 5 Figure 6 Procedural Amendment (Spontaneous) June 29, 1988 1, Indication of Case 1988 Patent Application No. 119745 Case Relationship between patent applicant 4, agent zip code 730 5, date of amendment order Voluntary 6, number of inventions increased by amendment O 8, content of amendment (1) page 4, line 7 of the specification, “front section ” instead of “all”
I am corrected. (2) On page 4, line 12 of the specification, the phrase "river waterway" is corrected to "river, irrigation canal."
Claims (2)
流側導水路を構設して取水井とし、さらに中仕切壁を設
けて下流側排水路を構設し、該取水井には内周に羽根板
を取設した横型又は竪型の回転式ストレーナを枠組して
具設し、この内部へ護岸側に配設した吸込管の先端を挿
入し、この吸込管の外周において回転式ストレーナの一
端をローラ軸受し、また他端には水中軸受を設けて上部
に設置した補助原動機により駆動自在とし、なお上記中
仕切壁の上部あるいは側部には回転式ストレーナの外周
に当接する幅広のスクレーバを装設して成り、ストレー
ナの回転に伴い流水に浮遊する塵芥を逐次除去すること
を特徴とする吸込管の回転式ストレーナ装置。(1) Construct an upstream headrace channel in the flow direction along the bank of a river, irrigation canal, or lake to serve as an intake well, and then construct a downstream drainage channel by installing a partition wall. A horizontal or vertical rotary strainer with a blade plate installed on the inner periphery is installed as a frame, and the tip of a suction pipe installed on the seawall side is inserted into this frame, and a rotary strainer is installed on the outer periphery of this suction pipe. One end of the strainer is equipped with a roller bearing, and the other end is equipped with an underwater bearing so that it can be driven freely by an auxiliary motor installed at the top.In addition, there is a wide part on the top or side of the partition wall that abuts the outer periphery of the rotary strainer. A rotary strainer device for a suction pipe, which is equipped with a scraper, and is characterized in that it sequentially removes dust floating in flowing water as the strainer rotates.
レーナ装置において、河川、用水路又は湖等の護岸沿い
の流れ方向に上流側導水路を構設して取水井とし、さら
に中仕切壁を設けて下流側排水路を構設し、この取水井
内に吸込管を内部に挿入して該装置を構築することを特
徴とする工法。(2) In the suction pipe rotary strainer device according to claim 1, an upstream water conduit is constructed in the flow direction along the bank of a river, irrigation canal, or lake to serve as a water intake well, and an intermediate partition is further provided. A construction method characterized by constructing the device by providing a wall to construct a downstream drainage channel, and inserting a suction pipe into the intake well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11974587A JPS63283712A (en) | 1987-05-15 | 1987-05-15 | Rotary strainer for suction pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11974587A JPS63283712A (en) | 1987-05-15 | 1987-05-15 | Rotary strainer for suction pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63283712A true JPS63283712A (en) | 1988-11-21 |
Family
ID=14769093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11974587A Pending JPS63283712A (en) | 1987-05-15 | 1987-05-15 | Rotary strainer for suction pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63283712A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0285893U (en) * | 1988-12-19 | 1990-07-06 | ||
| US7063791B2 (en) * | 2004-07-20 | 2006-06-20 | Miner Daniel P | Pump inlet screen |
| CN108547779A (en) * | 2018-04-02 | 2018-09-18 | 宿州迅驰电子科技有限公司 | A kind of self-cleaning exhaust blower |
| JP2020159261A (en) * | 2019-03-26 | 2020-10-01 | 株式会社荏原製作所 | Pump comprising foreign substance removal device |
| RU2795054C1 (en) * | 2022-09-07 | 2023-04-28 | Общество с ограниченной ответственностью "Билдинг Строй Гроуп" | Self-cleaning filter for sprinkling machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5588814A (en) * | 1978-12-27 | 1980-07-04 | Hitachi Kiden Kogyo Ltd | Self-cleaning strainer |
-
1987
- 1987-05-15 JP JP11974587A patent/JPS63283712A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5588814A (en) * | 1978-12-27 | 1980-07-04 | Hitachi Kiden Kogyo Ltd | Self-cleaning strainer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0285893U (en) * | 1988-12-19 | 1990-07-06 | ||
| US7063791B2 (en) * | 2004-07-20 | 2006-06-20 | Miner Daniel P | Pump inlet screen |
| CN108547779A (en) * | 2018-04-02 | 2018-09-18 | 宿州迅驰电子科技有限公司 | A kind of self-cleaning exhaust blower |
| JP2020159261A (en) * | 2019-03-26 | 2020-10-01 | 株式会社荏原製作所 | Pump comprising foreign substance removal device |
| RU2795054C1 (en) * | 2022-09-07 | 2023-04-28 | Общество с ограниченной ответственностью "Билдинг Строй Гроуп" | Self-cleaning filter for sprinkling machine |
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