1374958 九、發明說明： 【發明所屬之技術領域3 發明領域 本發明係有關於一種其上設有防止吸入口附近產生渦 5 流之旋渦發生防止裝置，且配置於河川等水路之水閘門閘 體上的水中用泵。 I：先前技術3 發明背景 由於治水等目的，河川等水路中設有多數水閘門。前 10 述水閘門上大多都有排水口，並具備其上設有水中用泵的 閘體。水中用泵係直接配置於閘體上，且該水中用泵係當 水閘門關閉時，強制性地排出水路之流水者。此種水中用 泵有各種類型，本案同一申請人亦提出有各種閘泵（gate pump)(本案申請人的登錄商標）。 15 此種水中用泵主要係依設置泵旋轉軸之方向而使得種 類有所不同，有橫軸式(形式)及豎軸式(形式）。又，為提高 水中用泵的吸入性能，必須讓吸入口盡可能地靠近河床（或 水路底）而設置。由於水路側之因素而讓水位降低時，若無 法確保水中用泵沈入水中所需要的深度，水中用泵會產生 20 吸入空氣的渦流、水下渦流、旋轉渦流等，致使水的吸入 性變差。該等吸入空氣的渦流、水下渦流、旋轉渦流會產 生汲水量降低、孔蝕、汲水程度降低等問題，而引起水中 用泵的性能降低、噪音、振動、軸承的磨耗、損傷、葉片 的沖蝕等機械性問題。 5 最適===述問題’-般都是決設定泵σ徑上的 條件，俾不引起連續的渦流吸入現象。若 ，面_及;^水中深度為適當值，不需挖藜等就可 中·水位進行運轉。又，有關橫軸式的水中用泵，由於水 用栗的水面則產生吸人空氣的渦流，為避免此情事， 值、、、定水中用泵的安裝高度及沒人水中所需的料之建議 進而，人們致力於降低必要水位，俾可以低水位進行[Technical Field] The present invention relates to a sluice gate preventing device which is provided with a vortex generation preventing device for preventing vortex 5 flow in the vicinity of a suction port, and is disposed in a waterway such as a river. Use a pump on the water. I: Prior Art 3 Background of the Invention Due to water control and the like, a plurality of water gates are provided in waterways such as rivers. Most of the water gates in the first 10 have drains and have a gate with a pump for water. The pump in the water is directly disposed on the brake body, and the pump in the water is forcibly discharged from the waterway when the water gate is closed. There are various types of pumps for such water use. In this case, the same applicant has also proposed various gate pumps (registered trademarks of applicants in this case). 15 This type of water pump mainly differs depending on the direction in which the pump's rotating shaft is set, and has a horizontal axis (form) and a vertical axis (form). Also, in order to improve the suction performance of the pump for water, it is necessary to set the suction port as close as possible to the riverbed (or the bottom of the waterway). If the water level is lowered due to the factor of the waterway side, if the depth required for the water pump to sink into the water cannot be ensured, the pump in the water will generate 20 eddy currents, underwater eddy currents, and swirling eddy currents, so that the water inhalation becomes variable. difference. The vortex, underwater vortex, and swirling vortex of the inhaled air cause problems such as reduced water volume, pitting corrosion, and reduced water level, resulting in reduced performance of the pump in the water, noise, vibration, bearing wear, damage, and blade. Mechanical problems such as erosion. 5 Optimum === The problem is generally determined by setting the condition of the pump σ path, and does not cause continuous eddy current inhalation. If the depth of the surface _ and ; water is an appropriate value, the water level can be operated without digging. In addition, the horizontal-axis type water pump generates a vortex that draws in air due to the water surface of the water chestnut. To avoid this, the value of the pump, the installation height of the pump for the fixed water, and the material required for the water in the water. It is suggested that people are working to reduce the necessary water level and that they can carry out low water levels.
運轉D 1〇 作為可解決前述問題之水中用泵（閘泵)設備，有橫軸式 0泵以及譬如專利文獻1、2所揭示者，即構造成讓閘泵的泵 ^轉輪傾斜地設置’並可於低水位進行運轉。如前述之水 中用泵，係以讓閘泵的泵旋轉軸（葉片軸)傾斜，且吸入口靠 近水路底之構造而為人所熟知》特別是，專利文獻1係本案 同一申請人的申請案’其中揭示該水中用泵設有突出於閘 系吸入口的水面側緣部流入方向之蓋體，以防止產生吸入 二氣的渦流。又，讓導蓋（guide casing)之吸入口流水通過 戴面積大於該導蓋内孔截面積，而讓凹渦不易成長為吸入 空氣的渦流。 再者，已知有如下述之水中用泵，即，栗吸入口係由 2〇 越朝前端侧開口部，徑度越大之圓錐形狀的筒狀構件構 成’且前端側開口部傾斜成上端部較下端部更突出於前端 側狀，又，前端側開口部設有阻流板、下部垂直阻流板、 及上部垂直阻流板（譬如參照專利文獻3)。進而，有如下述 之水中用泵，即，設於吸入口處之蓋體其吸入開口面積大 6 1374958 於泵的吸入部開口面積，並在吸入口蓋體的下壁或側壁上 形成開孔部，以防止渦流產生（譬如參照專利文獻4)β 【專利文獻1】日本專利公開公報特開2〇〇2 〇21〇50號 【專利文獻2】日本專利公開公報特開2〇〇3 〇55946號 【專利文獻3】曰本專利公開公報特開2〇〇5 〇〇2876號 【專利文獻4】日本專利公開公報特開2〇〇4 36〇5〇3號 【發明内容】 發明揭示 發明欲解決之問題 1〇 為抑制產生吸入空氣的渦流，如下對策也為人所採 用，即可藉由確保必要水位的最低限度來設置水中用泵。 惟，水中用泵中，水流對象並非僅有固定的順向渦流之水 流，又，亦非僅以靠近水面的水流為對象。流過水中用泵 外側的流水會碰撞水路的側壁及閘體並改變方向，即，反 15轉並逆流。該逆流之流水在水中用果的吸入口附近與順向 滿流合流，並由栗吸入口吸人。 此時會因水流流動的條件而產生水下渦流。該水下渦 流易在水流快速之場合'水壓高之場合等的不理想條件相 重疊時產生。該水下渦流捲入泵時，會導致水中用泵的性 20能降低，招致嗓音、振動、軸承磨耗、彳員傷、泵葉片的孔 蝕等機械性的問題。該水下渦流係因水路内，在水路壁及 閘體反轉且由水中用泵的後部側流入之流水，與由水中用 泵的前部側流入的順向渦流其流水，在交界部分相碰揸而 產生。 7 即，流過吸入口外側之流水因水路壁及閘體而反轉’ 並以逆流的渦形而被帶至吸入口附近，與順向渦流合流再 捲入吸入口。此時，沿著水中用泵而由後部側逆流之水流’ 係流向相對於順向渦流為略180度的不同方向，且在交界部 分0(參照第11圖）與順向渦流相碰撞。此時，相互的水流會 急遽地改變並抑制水流的方向，即產生迴旋並改變水流的 方向，又，水流流動強勁時，彼此間將局部的產生負壓而 發生水下渦流。 前述習知技術並未揭示消除該水下渦流之方法。譬如 專利文獻1、2所揭示之技術，係讓水中用泵的吸入口盡可 能地靠近水路底之技術，並非積極地消除水下渦流者。縱 或實施前述技術作為解決對策，一旦為低水位時，流速即 變快而產生吸入空氣的渦流。如此，即便係讓泵傾斜而設 置之構造’仍有其限度，並無法消除水下渦流，因此該技 術無法說是已臻極至。 又’前述專利文獻3所揭示之技術中，當河床上堆積有 土砂等障礙物時’下部垂直阻流板就會變成干擾而對閘體 的完全關閉動作造成阻礙，不但無法完全防止渦流產生， 還會有產生渦流以外的問題。進而，前述專利文獻4係於吸 入口蓋體的下壁或側壁上形成開孔部，並由該開孔吸入相 當於逆流之流水，並與順向渦流合流的技術，惟此方法亦 因椏有限的空間之故’而只能汲取極有限的流水，可說只 不過是緩和來自吸入口的逆流取入情形，並不是根本的解 決對策。因來自吸入口的逆流而引起的問題點並未解決。 在吸入口内合流時，並未順暢地產生渦流，因此並不一定 只與順向渴流合流。 本發明係為解決如前述習知之問題點而創作者，特別 是發展並改良前述專利文獻1之技術者，且可達成如下之目 的0 本發明之目的係在於提供一種設有漩渦發生防止裝置 之水中用泵，該水中用泵利用將漩渦發生防止構件設於泵 的吸入σ方式’以積極地防止產生水下渦流，並可於更低 之水位地進行運轉’且於低水位運_，仍可確保水中用 $順暢地進行運轉動作。本發明另—目的，係可讓旋紐 生防止裝置之構造簡單化，且亦將之可安裝於現有的水中 用泵上’以提供-種成本降低的設有朗發生防止裳置的 水中用泵。 < 本發明為達成前述目的係採用下述手段。 本發明【之設有旋生防止裝置之水Y 於t路之水閘門閘體上，且可吸人來自前述水路其 的級水，並讓流水朝前述水路另一端排出者，= 用泵於前魏人口下部附近設有義發’ 2 ’該水中 _生防止構件可改變由前述水中用錢部側::捲= 机水的流動方向’以防止由水中用系 入的流水產生漩渦β σ下部附近吸 本發明2之設有璇渴發生防止裝置之 , 發明卜前述水t用㈣橫轴式 料’係於本 用泵，且其旋轉軸相 本發明9之設有旋渴發生防止裝置之水中用泵，係於本 發明5或6中’前述旋渦發生防止構件係由合成橡膠材料形 成者。 本發明10之設有漩渦發生防止裝置之水中用泵，係於 本發明5或6中，前述漩渦發生防止構件係由塑膠材料形成 者。 本發明11之設有旋渦發生防止裝置之水中用泵，係於 本發明5或6中，前述旋渦發生防止構件係由板片彈簧形成 者。 發明之功效 本發明之設有漩渦發生防止裝置之水中用泵，係藉由 設置璇渦發生防止構件，而實現無渦流或可抑制竣渴產生 之水中用泵並讓該水中用泵運轉，故可在吸入順暢且安定 之流水的狀態下進行運轉，從而提高水中用泵的運轉效 率。又’相較於習知之水中用泵，可以更低之低水位進行 運轉。進而，由於構造簡單，相較於機能性提升，又可獲 致低成本的水中用泵。 再者，由於旋渦發生防止構件係可彈性變形，因此卷 閘體在完全關閉側降下時，縱或河床上有土砂之堆積物等 障礙物時’藉由璇渦發生防止構件的彈性變形，即可避免 損傷構成水中用泵的零件，並可讓閘體為完全關閉狀態。 【貧施方式3 實施發明之最佳態樣 依圖示詳細說明本發明設有漩渦發生防止裝置之水中 1374958 用泵的實施態樣。本實施態樣之水中用泵係橫軸式者。第1 圖係具有閘體的水閘門構造設備其側面截面圖，該閘雜係 設置有水中用泵（以下稱「閘泵」）者。該水閘門3係設於〆 般來說為支流側水路丨及主流側水路2的交接部，而流水係 5如箭頭般地流動。第1圖之狀態為閘體5降下且完全關閉之 狀態。 前述水閘門3係以混凝土構成，下部為排水口 4 ,且閘 體5(亦稱閘）可開啟、關閉該排水口4。水閘門3的上部安裝 有可開啟、關閉閘體5之開啟關閉機構6。又，細部雖未予 10 圖示’於水閘門3的兩側，上下方向地安裝有閘體5用的導 引構件。該導引構件係具凹溝的鋼板，埋設於水閘門3的混 凝土内。 另一方面，閘體5係略四角形狀，在覆蓋住排水口 4之 狀態下設置，並利用配置於水閘門兩側的導引構件引導而 15 上下滑動《再者，閘體5的下部設有閘泵7。該閘泵7係橫轴 式者，又，系的旋轉袖之轴線傾斜地設置於吸入口側，且 吸入口位在靠近河床（或水路底）之位置。有關閘泵7的基本 構造，係詳述於同^申請人的申請案，即前述專利文獻1， 故省略構造上的詳細説明。 2〇 閘泵7當閘體5降下而關閉排水口 4時，由於會強制地排 出水路中流水的水中用泵之故，流水會通過閘泵7内。進行 強制排水時，閘體5係如圖示般地關閉並鎖住水路，又，設 於閘體5上之閘泵7進行運轉，將支流側水路1之流水排往主 流侧水路2 »進行自然排水時’係藉由開啟關閉機構6而讓 12 離、朝水閘門3上部上升，而為完全開啟狀態或開啟狀 -、Hjc路讓支流側水路1之流水自然地往下流至主流 側水路2而排永。甘 八其次’說明設於該閘體5上之閘泵7的構成。 第9圖、隻 '第丨〇圖顯示習知之閘泵51的構造，第9圖係正 面^第1〇圖為側面戴面圖。閘泵51可運轉的最低水位S，， 立 不會發生吸入水下渦流的高度’以避免產生噪 振動、輪承的磨耗、損傷、泵葉片的孔蝕等機械性的 問題，又，係 ,一 本人於泵口徑之數值，即泵口徑+α(譬如泵口 10 4 3〇〇mm)。圖中為水平狀態地設置祕51之旋轉轴相 '|讓旋轉轴為傾斜狀態，可更降低最低水位，而此例係 屬驾去技術。該習知之閘泵51上，於上部雖設有蓋體，但 吸入口下部附近並未設置任何構件。 15 20 第2圖為本實施態樣之閘泵7的正面圖，第3圖為其側面 截面圖°於閘體5 ’閘聚7之旋轉軸的軸線係傾斜地安裝， 俾讓閘装7為吸人σ9側端部朝下方態樣。本實施態樣係旋 轉軸的軸線為傾斜狀的構成，但本發明並*限於此，亦可 讓旋轉軸之軸線為水平狀的構成。閘泵7的吸入口9上部， 設有蓋體8。因此，水路的水面為流速慢且自錢水之場 合，縱或汲取流水的界限，即水位3在蓋體8的下端部位置， 仍可不吸人空氣地進行流動1以防止水下渦流的璇滿發 生防止構件10，係設於吸入口 9下部。 第4圖係顯示閘果7之吸人D 9周邊的流水其流動態的 側面圖。閘泵7之吸入口 9附近的水流，係以由·7的前面 側直接流入蓋體8内之水流A (以下稱順向渦流）為主要者。 13 1374958 惟，閘泵7附近的水流非僅有順向渦流A’亦有鬆解開閘泵7 之蓋體8而流過蓋體8及閘泵7外側之水流B(以下稱反順向 渴流）。 如圖所示，前述水流係通過蓋體8之外側並碰撞閘體5 5 或水路壁而改變方向，反轉構成逆向渦流。該逆向渦流， 即反順向渦流B係由閘泵7之後部側流入吸入口 9。流入之反 順向渦流B與順向渦流A合流而成為順向渦流，並捲入吸入 口9。如第11圖所示，依習知之構成，由於反順向渦流b係 朝相對於順向渦流A為略180度不同的方向逆流，因此相互 1 〇 的水流碰撞的交界部分c ’呈現出會對前述水流群自身流動 造成妨礙的狀態。水流強勁時，流動摩擦變大，使得合流 時順向渦流與反順向渦流交接部分局部的產生負壓，而發 生水下渦流》 本實施態樣中’於閘泵7之吸入口 9下部，安裝有旋渦 15發生防止構件10，該旋渦發生防止構件10係沿著水路寬度 而具預定寬度的截面（或側面）呈略L字形狀者。該旋渦發生 防止構件10係合成橡膠材料形成者。該璇渦發生防止構件 10係至少吸入口 9側的前端部1〇b為可彈性變形，並在吸入 口 9側彈性變形。略L字形狀的漩渦發生防止構件1〇，係以 2〇下述方式安裝’#，讓前端部朝向其與順向渦流A之水 流為相對向或略相對向之側。由於漩渦發生防止構件1〇可 彈性變形，因此隨著閘體5降下時，縱或河床上有土砂等也 不會對閘泵7造成損傷，且閘體5可下降到最下部而為完全 關閉狀態。又，如第5圖所示’蓋體8之緣部上設有由水平 14 1374958 方向視之’係沿著水路側壁而在水平狀態具預定寬度的側 向葉片11。該側向葉片1丨設在蓋體8兩側，為鋼板製之平板 材。 側向葉片11係固定地設置，亦可為彈性變形之構造。 5藉由該構造，發生如第4、5圖所示之反順向渦流B之場合、 水位保持在最低限度的位置之場合時，反順向渦流B主要係 在由蓋體8兩側及吸入口 9下部捲進蓋體8之狀態下，逆流而 吸進吸入口9。相對於側向葉片u，流水係受到側向葉片u 阻礙的水流，且在吸入口 9處變成間接的緩衝水流而捲入。 10 又’來自反順向渦流B在吸入口 9附近下部之水流，因經由 旋渴發生防止構件10而使得水流被截斷，作為捲入漩渦發 生防止構件10等之水流而流進吸入口9。 此一狀態顯示於第6圖的說明圖。依第11圖之習知構 造，反順向满流B及順向渴流A係流向相互成略180度相對 15 的方向，並在交界部分C相碰撞。反順向渦流B碰到順向渦 流A的抵抗力時，係在迴旋狀態下改變方向而與順向渦流A 合流。此時，交界部分C處產生渦流之原因係如前所述。發 生漩渦的理由雖不一定僅限於此，但前述原因卻是極大要 因。相對於此，第6圖之例中，反順向渦流B係經吸入口 9 2〇 側前端部為可彈性變形且呈略L字形狀的漩渦發生防止構 件10而流動。該L字形狀的漩渦發生防止構件10係藉由螺栓 10a而安裝於閘泵7之吸入口 9的下部端部。 水流經過前述漩渦發生防止構件10時，水流會受到阻 礙且水流強度降低。水流緩弱時，發生漩渦的可能性即降 15 低，L字形狀的漩渦發生防止構件1〇產生變形的程度亦小。 水流強勁時，如第6圖所示，水流會因l字形狀的漩渦發生 防止構件1〇而受到抵抗力，變成遭受妨礙的水流，並不會 成為如第11圖所示之水流，且角度略朝9〇度水流變得緩 和才與順向渦流A合流。 再者，若水流變得強勁，反順向渦流8會被引至順向渦 流A且吸入口 9側為負壓狀態，因此該反順向渦流B係如圖 示，即，漩渦發生防止構件1〇的L字形狀前端部1〇b在吸入 口 9側，可如圖中需線所示般地彈性變形。利用伴隨該彈性 變形而變化的水流動態來解除掉負壓。藉此，水流由18〇度 的方向進行改變，且水流在前述L字形狀的漩渦發生防止構 件1〇處被截斷，同時沿著L字形狀而變換成朝向略9〇度的角 度之水流並吸引，而與順向渦流A合流。因此，水流的交界 部分幾乎全都被消除’因而不易產生旋渦。 又，於旋渦發生防止構件1〇的略L字前面（吸入口 9)側 產生初期渦流時，產生漩渦部分壓力降低。隨著壓力降低 程度，旋渦發生防止構件1〇產生彈性變形，並被牽引到略[ 字的前面侧。牵㈣作會讓壓力回升，而可抑制漩渴發生 或旋涡成m肖失時，料發生防止構件職復成原 來的略L字形狀。運轉中反覆進行前述動作，自動地平衡壓 力差而抑制旋渦生成。 由於彈性變形係依水流的強度而變化，因此水流越強 變形也越強’讀和水^水路因水流條件而有各種變化。 譬如，流速、流壓、水位、水路的通過面積、#向、果的 1374958 旋轉、存有異物等而微妙地變化。邏輯上，並不易設置可 配合前述條件而完全地去除水下渦流之固定機構。設置可 彈性變形之漩渦發生防止構件’係用以消除前述問題點的 一大有力對策。若可依條件而彈性變形，便有助於抑制漩 5 渦產生，做成最合適的狀態而獲致十足功效。The operation D 1 〇 is a water pump (gate pump) device which can solve the above problems, and has a horizontal axis type 0 pump and, as disclosed in Patent Documents 1 and 2, that is, the pumping wheel of the sluice pump is arranged obliquely. It can be operated at low water levels. The pump for underwater use is known in such a manner that the pump rotating shaft (vane shaft) of the sluice pump is inclined and the suction port is close to the bottom of the water passage. In particular, Patent Document 1 is the same applicant's application in this case. 'It is disclosed that the water pump is provided with a cover that protrudes in the inflow direction of the water surface side edge portion of the gate suction port to prevent eddy currents from inhaling the two gases. Further, the flow of the suction opening of the guide casing is made larger than the cross-sectional area of the inner diameter of the guide cover, so that the concave vortex does not easily grow into a vortex of the intake air. In addition, the pump for underwater use is known, that is, the chest suction port is formed by a tubular member having a conical shape with a larger diameter toward the distal end side opening portion, and the distal end side opening portion is inclined to the upper end. The lower end portion protrudes more from the front end side, and the front end side opening portion is provided with a baffle plate, a lower vertical baffle plate, and an upper vertical baffle plate (for example, refer to Patent Document 3). Further, there is a water pump as described below, that is, the cover provided at the suction port has a large suction opening area of 6 1374958 in the suction opening area of the pump, and an opening portion is formed in the lower wall or the side wall of the suction port cover. In order to prevent the generation of eddy currents (for example, refer to Patent Document 4). [Patent Document 1] Japanese Laid-Open Patent Publication No. 2〇〇2〇21〇50 [Patent Document 2] Japanese Patent Laid-Open Publication No. 2〇〇3 〇55946 [Patent Document 3] Japanese Patent Laid-Open Publication No. Hei 2 No. 5 No. 2876 [Patent Document 4] Japanese Patent Laid-Open Publication No. Hei No. Hei 2 No. 4 36 No. 5 No. 3 [Invention] Solution to Problem 1 In order to suppress the generation of eddy currents of the intake air, the following countermeasures are also employed, and the pump for water can be set by ensuring the minimum necessary water level. However, in a water pump, the water flow object is not only a fixed forward vortex flow, but also a water flow close to the water surface. The water flowing outside the pump through the water will collide with the side wall of the waterway and the gate and change direction, that is, reverse 15 turns and reverse flow. The countercurrent flowing water merges with the forward full flow near the suction port of the fruit in the water, and is sucked by the chest suction port. At this time, underwater vortex is generated due to the condition in which the water flows. This underwater vortex is easily generated when the undesired conditions such as the case where the water pressure is high and the water pressure is high overlap. When the underwater vortex is drawn into the pump, the performance of the pump in the water can be lowered, causing mechanical problems such as noise, vibration, bearing wear, employee injury, and pitting of the pump blade. In the underwater vortex, the water flowing in the waterway wall and the gate body is reversed and flows from the rear side of the water pump, and the forward vortex flowing in from the front side of the water pump is flowing in the boundary portion. Produced by touch. 7 That is, the flowing water flowing outside the suction port is reversed by the water passage wall and the brake body, and is brought to the vicinity of the suction port in a swirling flow, and merges with the forward vortex to be drawn into the suction port. At this time, the flow of water flowing back from the rear side by the pump in the water flows in a direction slightly different from the forward vortex by 180 degrees, and collides with the forward vortex at the boundary portion 0 (see Fig. 11). At this time, the mutual water flow will violently change and suppress the direction of the water flow, that is, generate a swirl and change the direction of the water flow. Further, when the water flow is strong, a negative pressure is locally generated to generate underwater vortex. The foregoing prior art does not disclose a method of eliminating this underwater vortex. For example, the technique disclosed in Patent Documents 1 and 2 is a technique in which the suction port of the pump in the water is as close as possible to the bottom of the water passage, and the underwater vortex is not actively eliminated. Vertically or by implementing the foregoing technique as a countermeasure, once the water level is low, the flow velocity becomes faster to generate a vortex of the intake air. Thus, even if the structure is set such that the pump is tilted, there is still a limit, and the underwater eddy current cannot be eliminated, so the technique cannot be said to be extremely extreme. Further, in the technique disclosed in the aforementioned Patent Document 3, when an obstacle such as soil sand is accumulated on the river bed, the lower vertical baffle plate becomes a disturbance and hinders the complete closing operation of the gate body, and the eddy current cannot be completely prevented. There are also problems other than eddy currents. Further, the above-mentioned Patent Document 4 is a technique in which an opening portion is formed in a lower wall or a side wall of a suction port cover, and a water corresponding to a countercurrent flow is sucked from the opening and merges with a forward vortex, but the method is also limited. The reason for the space is that it can only draw a very limited flow of water. It can be said that it is only to ease the countercurrent intake from the suction port, and it is not a fundamental solution. The problem caused by the backflow from the suction port has not been solved. When the flow is merged in the suction port, the eddy current is not smoothly generated, so it does not necessarily merge with the forward thirst. The present invention has been made in order to solve the problems of the prior art, and in particular to develop and improve the technique of the aforementioned Patent Document 1, and achieve the following objects. The object of the present invention is to provide a vortex generation preventing device. The pump is used in the water, and the pump is used to set the vortex generation preventing member to the suction σ mode of the pump to actively prevent the underwater vortex from being generated and can be operated at a lower water level. It can ensure that the water is operated smoothly with $. Another object of the present invention is to simplify the structure of the rotary blast prevention device, and also to install it on an existing water pump to provide a water-reducing water for preventing the occurrence of the sling. Pump. < The present invention employs the following means for achieving the above object. The water device Y of the present invention is provided with a water gate Y of the cyclone prevention device on the water gate of the road, and can suck the water from the waterway, and let the water flow to the other end of the waterway, = pumping In the vicinity of the lower Wei population, there is a Yifa '2' in the water. The raw prevention component can be changed by the water side of the water:: volume = the flow direction of the machine water to prevent the flow of water from the water to generate a vortex β σ In the vicinity of the lower portion, the thirst-preventing prevention device of the present invention is provided, and the water-using (four) horizontal-axis material is used in the present invention, and the rotary shaft phase thereof is provided with the thirst-preventing prevention device of the present invention. The pump for water is in the fifth or sixth aspect of the invention. The vortex generation preventing member is formed of a synthetic rubber material. According to a fifth aspect of the present invention, in the fifth or sixth aspect of the present invention, the vortex generation preventing member is formed of a plastic material. According to a fifth aspect of the present invention, in the fifth or sixth aspect of the invention, the vortex generation preventing member is formed of a leaf spring. Advantageous Effects of Invention The underwater pump provided with the vortex generation preventing device of the present invention is provided with a vortex generating preventing member, thereby realizing a pump for water having no eddy current or suppressing thirst and allowing the water to be operated by a pump. It can be operated while inhaling a smooth and stable flow of water, thereby improving the operating efficiency of the pump in the water. In addition, it can be operated at a lower water level than the conventional water pump. Further, since the structure is simple, a low-cost water pump can be obtained as compared with the improvement in performance. Further, since the vortex generation preventing member is elastically deformable, when the shutter body is lowered on the completely closed side, when there is an obstacle such as a deposit of soil sand in the longitudinal or river bed, the elastic deformation of the member is prevented by the vortex generation, that is, It can avoid damage to the parts that make up the pump in the water, and can make the gate completely closed. [Equivalent Mode 3] BEST MODE FOR CARRYING OUT THE INVENTION A description will be given in detail of an embodiment of a pump for use in a water having a vortex generation preventing device according to the present invention. The water pump of the present embodiment is a horizontal axis type. Fig. 1 is a side sectional view showing a water gate structure apparatus having a brake body provided with a water pump (hereinafter referred to as "gate pump"). The water gate 3 is provided at the intersection of the tributary side water passage 丨 and the main flow side water passage 2, and the flow water system 5 flows as an arrow. The state of Fig. 1 is a state in which the shutter 5 is lowered and completely closed. The water gate 3 is made of concrete, the lower part is a drain port 4, and the gate 5 (also called a gate) can open and close the drain port 4. The upper portion of the water gate 3 is provided with an opening and closing mechanism 6 for opening and closing the shutter 5. Further, although the details are not shown in the drawings, the guide members for the shutter 5 are attached to the both sides of the water gate 3 in the vertical direction. The guide member is a steel plate having a groove and is embedded in the concrete of the water gate 3. On the other hand, the shutter body 5 has a substantially square shape and is provided in a state of covering the drain port 4, and is guided by the guide members disposed on both sides of the water gate to slide up and down. 15 Further, the lower portion of the brake body 5 is provided. There is a brake pump 7. The gate pump 7 is a horizontal axis type, and the axis of the rotating sleeve is obliquely disposed on the suction port side, and the suction port is located close to the river bed (or the bottom of the water pipe). The basic structure of the sluice pump 7 is described in detail in the application of the same applicant, that is, the aforementioned Patent Document 1, and the detailed description of the structure is omitted. 2〇 When the sluice pump 7 is lowered and the drain port 4 is closed, the water will pass through the sluice pump 7 because the water in the water flowing in the water path is forcibly discharged. When the forced drainage is performed, the brake body 5 closes and locks the water passage as shown in the figure, and the gate pump 7 provided on the brake body 5 operates to discharge the flow water of the branch flow side water passage 1 to the main flow side water passage 2 » When the natural drainage is carried out, the water is turned off by the opening and closing mechanism 6 to the upper part of the water gate 3, and is completely open or opened. The Hjc road allows the water of the branch side waterway 1 to naturally flow down to the main stream side waterway. 2 and row forever. The configuration of the gate pump 7 provided on the gate body 5 will be described. Fig. 9 and Fig. only show the structure of the conventional gate pump 51, and Fig. 9 is a front view. The first figure is a side surface view. The lowest water level S at which the sluice pump 51 can operate, and the height of the underwater vortex does not occur to avoid mechanical problems such as noise vibration, wheel bearing wear, damage, and pump blade pitting. The value of a person in the pump diameter, that is, the pump diameter + α (such as the pump port 10 4 3 〇〇 mm). In the figure, the rotation axis phase of the secret 51 is set horizontally '| Let the rotation axis be inclined to lower the minimum water level, and this example is a driving technique. In the conventional gate pump 51, a cover body is provided on the upper portion, but no member is provided in the vicinity of the lower portion of the suction port. 15 20 Fig. 2 is a front view of the sluice pump 7 of the present embodiment, and Fig. 3 is a side sectional view thereof. The axis of the rotary shaft of the sluice 5' sluice 7 is obliquely mounted, and the sluice gate 7 is The side end of the suction σ9 faces downward. In the present embodiment, the axis of the rotating shaft is inclined, but the present invention is not limited thereto, and the axis of the rotating shaft may be horizontal. A lid body 8 is provided on the upper portion of the suction port 9 of the sluice pump 7. Therefore, the water surface of the waterway is slow in flow rate and self-contained water, and the boundary of the flowing water is drawn vertically or vertically, that is, the water level 3 is at the lower end position of the cover body 8, and can still flow without sucking air 1 to prevent the turbulence of the underwater vortex. The full occurrence preventing member 10 is provided at a lower portion of the suction port 9. Fig. 4 is a side view showing the flow dynamics of the flowing water around the D9 of the brake fruit 7. The flow of water near the suction port 9 of the sluice pump 7 is mainly caused by the flow A (hereinafter referred to as forward eddy current) directly flowing into the cover 8 from the front side of the -7. 13 1374958 However, the flow of water near the sluice pump 7 is not only the forward vortex A' but also the cover 8 of the sluice pump 7 and flows through the cover 8 and the water flow B outside the sluice pump 7 (hereinafter referred to as reverse directional) Thirsty flow). As shown in the figure, the water flow system changes direction by passing the outer side of the cover body 8 and colliding with the brake body 5 5 or the water passage wall, and the reverse direction constitutes a reverse eddy current. This reverse vortex, i.e., the reverse vortex B, flows into the suction port 9 from the rear side of the gate pump 7. The inflow forward vortex B merges with the forward vortex A to become a forward vortex, and is entangled in the suction port 9. As shown in Fig. 11, according to the conventional configuration, since the reverse vortex b is reversed in a direction slightly different from the forward vortex A by 180 degrees, the boundary portion c' of the collision of the water flows with each other appears. A state in which the flow of the water flow group itself is hindered. When the water flow is strong, the flow friction becomes large, so that a partial negative pressure is generated in the intersection of the forward vortex and the reverse forward vortex at the time of the merge, and the underwater vortex occurs. In the present embodiment, the lower portion of the suction port 9 of the sluice pump 7 is The vortex 15 occurrence preventing member 10 is attached, and the vortex generation preventing member 10 has a substantially L-shaped cross section (or a side surface) having a predetermined width along the water passage width. This vortex generation preventing member 10 is a synthetic rubber material former. The vortex generation preventing member 10 is elastically deformable at least at the end portion 1b of the suction port 9 side, and is elastically deformed on the suction port 9 side. The vortex-preventing member 1 is slightly L-shaped, and ‘# is attached in such a manner that the tip end portion faces the water flow of the forward vortex A toward or slightly opposite to the side. Since the vortex generation preventing member 1 is elastically deformable, when the brake body 5 is lowered, soil or sand on the vertical or riverbed does not cause damage to the brake pump 7, and the brake body 5 can be lowered to the lowermost portion to be completely closed. status. Further, as shown in Fig. 5, the edge portion of the lid body 8 is provided with a lateral blade 11 having a predetermined width in a horizontal state along the side of the water passage as viewed in the direction of the horizontal 14 1374958. The lateral blades 1 are disposed on both sides of the cover 8 and are made of a steel plate. The lateral blades 11 are fixedly disposed or may be elastically deformed. (5) With this configuration, when the reverse vortex B shown in Figs. 4 and 5 occurs, and the water level is kept at the minimum position, the reverse vortex B is mainly on both sides of the cover 8 and In a state where the lower portion of the suction port 9 is wound into the lid body 8, it is sucked into the suction port 9 in a countercurrent flow. With respect to the lateral vanes u, the flowing water system is blocked by the lateral vanes u, and becomes indirect buffering water flow at the suction port 9 to be caught. In addition, the water flow from the lower portion of the suction vortex B in the vicinity of the suction port 9 is blocked by the throttling prevention member 10, and flows into the suction port 9 as a water flow that is caught in the vortex generation preventing member 10 or the like. This state is shown in the explanatory diagram of Fig. 6. According to the conventional construction of Fig. 11, the anti-forward full flow B and the forward thirst flow A flow in a direction of 180 degrees with respect to each other, and collide at the boundary portion C. When the reverse vortex B hits the resistance of the forward vortex A, it changes direction in the swirling state and merges with the forward vortex A. At this time, the reason why the eddy current is generated at the boundary portion C is as described above. The reason for the whirlpool is not necessarily limited to this, but the above reasons are extremely important. On the other hand, in the example of Fig. 6, the reverse vortex flow B flows through the vortex formation preventing member 10 which is elastically deformable and has a slightly L shape through the tip end portion of the suction port 9 2 侧 side. The L-shaped vortex generation preventing member 10 is attached to the lower end portion of the suction port 9 of the gate pump 7 by the bolt 10a. When the water flows through the vortex generation preventing member 10, the water flow is hindered and the water flow intensity is lowered. When the water flow is weak, the possibility of occurrence of a vortex is lowered, and the degree of occurrence of deformation of the L-shaped vortex prevention member 1 is also small. When the water flow is strong, as shown in Fig. 6, the water flow is resisted by the prevention of the member 1 due to the vortex of the l-shape, and becomes a water flow that is hindered, and does not become a water flow as shown in Fig. 11, and the angle Slightly toward 9 degrees, the water flow becomes gentle and merges with the forward vortex A. Furthermore, if the water flow becomes strong, the reverse vortex 8 is led to the forward vortex A and the suction port 9 side is in a negative pressure state, so the reverse vortex B is as shown, that is, the vortex generation preventing member The L-shaped front end portion 1〇b of one turn is elastically deformed on the side of the suction port 9 as shown by a line in the drawing. The negative pressure is released by the flow dynamics that vary with the elastic deformation. Thereby, the water flow is changed by the direction of 18 degrees, and the water flow is cut off at the aforementioned L-shaped vortex generation preventing member 1 ,, and is converted into a water flow at an angle of slightly 9 degrees along the L shape. Attracted, and merged with the forward vortex A. Therefore, the boundary portion of the water flow is almost completely eliminated, and thus the vortex is less likely to occur. Further, when an initial eddy current is generated on the slightly L-shaped front side (suction port 9) side of the vortex generation preventing member 1A, the vortex partial pressure is lowered. As the pressure is lowered, the vortex generation prevents the member 1 from being elastically deformed and is pulled to the front side of the word. Pulling (4) will increase the pressure, but it can suppress the occurrence of sinus quenching or vortex into the o-shear, and the material will prevent the member from reverting to the original L shape. The above operation is repeatedly performed during the operation, and the pressure difference is automatically balanced to suppress the generation of the vortex. Since the elastic deformation varies depending on the strength of the water flow, the stronger the water flow, the stronger the deformation. The reading and the water channel have various changes due to the water flow conditions. For example, the flow rate, flow pressure, water level, water passage area, #向向, fruit 1374958 rotation, foreign matter, etc., subtly change. Logically, it is not easy to provide a fixing mechanism that completely removes the underwater vortex in accordance with the aforementioned conditions. The provision of the elastically deformable vortex generation preventing member' is a powerful countermeasure for eliminating the aforementioned problems. If it can be elastically deformed according to the conditions, it will help to suppress the generation of the vortex, and make it the most suitable state to achieve full effect.
如此，藉由側向葉片11及漩渦發生防止構件1〇，反順 向渦流B得以有變化餘裕，不會由交界部分c產生漩渦地被 吸進吸入口9。即，漩渦發生防止構件1〇的前端部可彈性變 形’因此可在改變水流的合流方向同時，依水流強度自動 H)地平衡壓力差，而抑制產生竣渴。由前述構造，本實施態 樣係可降低進行連續且安定之運轉的水位s，並可讓該水: s為小於栗口徑之數值（譬如栗口徑χ08)。譬如，若係栗口 徑為500mm之閘泵，其水位可為4〇〇mm。 15 20 .恐佩，顯示將漩渦發生防止構件i2 在截面視之的L字形狀，變更成截面視之為⑽狀之例。安 裝構造係與第6圖相同。義發生防止構件⑵系以下述 前端部係朝向相對於順向渦流A之流向 向之側。此時，可預期反順向_會沿 不可經由設於吸入口 9端部的支 ‘。樣』 形腺梅構件u，在仏9側進之 設計上，必須要為可調整摇 ，的構…在 復原狀之設計，此時，L字 於“變弱時立即回 件。前述祕亦以下述/ 13亦可―性變形構 衫切料裝，即，❺形狀構件13 17 的則端部，係朝向相對於順向渦流A之水流而成相對向或略 相對向之侧。 又，雖未予圖示，亦可為下述構造，即，將可讓反順 向渦流B之水流方向改變略90度方向之構件，固定地安裝於 5 吸入口 9側。藉由構造成讓相對於順向渦流，為180度之不 同方向的反順向渦流，不在交界部分與順向渦流相碰撞， <相當性地抑制璇渦產生。藉由讓漩渦發生防止構件為彈 性構件’縱或河床上有土砂之堆積物等的障礙物，可利用 禪性變形而避免損傷到用以構成閘泵之零件，並具有防止 1〇漩渦發生以外的功效。藉由前述構造，雖一部分重複，但 其結果，可獲致如下功效。 巧*藉由截斷來自閘泵後方的捲入水流，並消除水流的 交界部勿C，而抑制水下渦流產生，又，可讓由蓋體兩側部 流入的水机觉到阻礙，而抑制產生吸入有空氣之渦流，並 ι5 <在更低之水位進行運轉。再者，可在低水位進行運轉， 因此縱或疋習知之閘泵無法進行運轉的水路 ，亦可設置閘 泵。 讓閘體在完全關閉側降下時，縱或河床上有土砂之堆 積物等障礙物’因竣渴發生防止構件具柔軟性且可彈性變 2〇形’故可避免知傷用以構成閘聚之零件，並可讓閘體為完 食關閉狀態。不需挖馨河床等，就可低成本地設置閉泉。 進而，旋财生防止構件具柔軟性且字形狀 ，因此可 利用彈性變形’自動地平衡由於壓力不均等所產生的水下 滿流、捲入情形而弓1發的偏向渦流等，而抑制旋滿成長。 18 1374958 依水路的各種條件而有所變化並流向閘泵吸入口的水 机亦經彈性變形而具變化餘裕，且可適切地依前述變化 清形而改變，故可抑制漩渦產生。再者，漩渦發生防止構 件可藉由螺栓等而以簡單構造安裝於吸入口，故可實現低 5 成本的閘泵。 以上’說明本發明實施態樣，但本發明並不限於此。 ·#如’雖以合成橡膠材料形成旋渦發生防止構件，但亦可 藉由塑膠材料及板片彈簧等而形成。雖說明側向葉片係將 鋼板製平板狀的構件，水平地設置於蓋體兩側，惟材質亦 ίο 可為其他例，且並不限於水平設置態樣。 本發明之特徵係如前所述，可更低地設定讓水中用泵 可運轉的最低水位，並且減少吸入空氣之渦流等所產生的 影響，同時防止產生水下渦流，並提高水中用泵的運轉可 靠度。因此，在不脫離此目的、旨趣的範圍内，不消說， 15 係可做各種變更。 【囷式簡單說明】 第1圖係顯示具有本發明之水中用泵的水閘門整體截 面圖’該水中用泵係設有漩渦發生防止裝置者。 第2圖係設有旋渴發生防止裝置之水中用泵的正面圖。 20 第3圖係設有漩渦發生防止裝置之水中用泵的側面截 面圖。 第4圖係以側面截面圖來顯示設有旋渦發生防止裝置 之水中用泵其流水構造的說明圖。 第5圖係以平面圖來顯不設有旋滿發生防止裝置之水 19 1374958 中用泵其流水構造的說明圖。 第6圖係顯示略L字形狀之旋渦發生防止構件其構造的 說明圖。 第7圖係漩渦發生防止構件的其他實施態樣，顯示R形 5 狀構造的說明圖。 第8圖係漩渦發生防止構件的另一實施態樣，顯示可搖 動之構造的說明圖。 第9圖係顯示習知之閘聚構造的正面圖。 1 第10圖係顯示習知之閘泵構造的側面截面圖。 10 第11圖係顯示習知閘泵之吸入口附近的水流狀態之說 明圖。 【主要元件符號說明】 1...支流側水路 10a...螺栓 2...主流側水路 10b...前端部 3...水閘門 11...側向葉片 4...排水口 13..丄字形狀構件 5...閘體 51…閘泵 6...開啟關閉機構 A...順向渴流 7...閘泵 B...反順向渦流 8...蓋體 C...交界部分 9".吸入口 S...水位 10，12...旋渦發生防止構件 s’...最低水位 20As described above, the lateral vane 11 and the vortex generation preventing member 1A have a margin of change in the reverse vortex flow B, and are sucked into the suction port 9 without being vortexed by the boundary portion c. Namely, the tip end portion of the vortex generation preventing member 1A can be elastically deformed. Therefore, it is possible to automatically balance the pressure difference according to the water flow intensity while changing the direction of the flow of the water flow, thereby suppressing the occurrence of thirst. According to the foregoing configuration, the present embodiment can reduce the water level s for continuous and stable operation, and allows the water: s to be smaller than the value of the chestnut diameter (e.g., chestnut diameter χ 08). For example, if the gate pump with a diameter of 500mm is used, the water level can be 4〇〇mm. 15 20 . The example in which the vortex generation preventing member i2 has an L shape viewed in a cross section is changed to a cross section (10). The installation structure is the same as in Figure 6. The sense occurrence preventing member (2) is oriented such that the front end portion faces toward the forward vortex A. At this time, it is expected that the reverse direction _ will not pass through the branch ‘ provided at the end of the suction port 9. The shape of the glandular plum component u, in the design of the side of the 仏9, must be adjustable, the structure of the transformation... in the design of the restoration, at this time, the L character is immediately returned when it becomes weak. The following/13 can also be used to cut the material, that is, the end portion of the ❺-shaped member 13 17 is oriented opposite or slightly opposite to the water flow with respect to the forward vortex A. Although not shown, a member in which the direction of the flow of the reverse vortex B can be changed by a slight 90 degrees can be fixedly attached to the side of the suction port 9 by the structure. In the forward eddy current, the reverse vortex flow in different directions of 180 degrees does not collide with the forward eddy current at the boundary portion, <substantially suppresses the generation of the vortex vortex. By letting the vortex generating member be the elastic member 'longitudinal or There are obstacles such as deposits of soil sand on the river bed, which can be used to prevent damage to the parts used to form the gate pump, and have the effect of preventing the occurrence of a vortex. However, although the above structure is partially repeated, As a result, the following effects can be obtained. The water flow from the rear of the sluice pump is cut off, and the boundary portion of the water flow is eliminated, and the underwater vortex is suppressed, and the water flowing in from both sides of the cover body is prevented from being hindered, and the inhalation of air is suppressed. The eddy current, and ι5 < operates at a lower water level. In addition, it can be operated at a low water level, so the water pump can not be operated in the vertical or the conventional gate pump, and the gate pump can be set. When the closing side is lowered, there are obstacles such as deposits of soil sand in the vertical or river bed. 'Because thirst occurs to prevent the member from being soft and elastically deformable, it can avoid the damage of the parts used to form the gate. Let the gate body be in a closed state. It is possible to set a closed spring at a low cost without digging a riverbed, etc. Further, the spine prevents the member from having a soft and word shape, so that the elastic deformation can be used to automatically balance the pressure. The underwater full flow, the entrapment situation, and the deflection vortex generated by the bow, etc., inhibit the full growth. 18 1374958 The water machine that changes according to various conditions of the waterway and flows to the suction port of the gate pump is also elasticity In addition, the vortex generation preventing member can be attached to the suction port by a simple structure by bolts or the like, so that the vortex generation preventing member can be easily installed in the suction port by a bolt or the like. The sluice pump of the present invention has been described above, but the present invention is not limited thereto. · #如' Although the vortex generation preventing member is formed of a synthetic rubber material, it may be a plastic material, a leaf spring or the like. Although the lateral blade system has a flat plate-shaped member placed horizontally on both sides of the cover body, the material may be other examples, and is not limited to the horizontal arrangement. The features of the present invention are as before. According to the above, the lowest water level in which the pump can be operated in the water can be set lower, and the influence of the vortex of the intake air or the like can be reduced, and the underwater vortex can be prevented from being generated, and the operation reliability of the pump in the water can be improved. Therefore, it is not necessary to say that the 15 series can be changed in various ways without departing from the purpose and purpose. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing an overall view of a water gate having a water pump according to the present invention. The water pump is provided with a vortex generation preventing device. Fig. 2 is a front view of a water pump equipped with a thirst quenching prevention device. 20 Fig. 3 is a side cross-sectional view of the water pump provided with the vortex generation preventing device. Fig. 4 is an explanatory view showing a water flow structure of a water pump provided with a vortex generation preventing device in a side sectional view. Fig. 5 is an explanatory view showing the flow structure of the pump in the water in the case of the water full of 19-374958 in the plan view. Fig. 6 is an explanatory view showing the structure of a vortex generation preventing member having a slightly L shape. Fig. 7 is a view showing another embodiment of the vortex generation preventing member, showing an R-shaped 5-shaped structure. Fig. 8 is a view showing another embodiment of the vortex generation preventing member, showing an explanatory structure of the swayable structure. Figure 9 is a front elevational view showing a conventional sluice structure. 1 Figure 10 is a side cross-sectional view showing the construction of a conventional gate pump. 10 Figure 11 is an explanatory view showing the state of the water flow near the suction port of the conventional gate pump. [Description of main component symbols] 1...tributary side waterway 10a...bolt 2...mainstream side waterway 10b...front end section 3...water gate 11...lateral blade 4...drain port 13. 丄 shape member 5... sluice 51... sluice pump 6... open closing mechanism A... forward thirst flow 7... sluice pump B... reverse vortex 8... Cover C... Junction part 9". Suction port S... Water level 10, 12... Vortex generation preventing member s'... Lowest water level 20