經濟部中央橾淮局Π工消f合竹社印製 A7 ____ B7 五、發明説明1() 發明背景 本發明有關於泵葉輪，更特定的說，有關於離心式或 半軸式泵所用的泵葉輪以汲水。 有許多泵及泵葉輪，然而，它們都有一些缺點。最嚴 重的缺點是堵塞及低效率。 污水包含許多不同污物，它們的量及結構取決於季節 及污水流過的地區類型。在都市中，塑膠材料、衛生物體 、紡織品是普通的，工業地區卻可能產生磨損性顆粒。經 驗顯示最壞的問題是破布粘住葉片前緣而繞住葉輪轂。此 類事件造成高頻服務及低效率。 在農業及界漿工業中，使用不同類特殊泵，以處理稻 草、草、葉及其他類有機物。爲此，葉片的前緣向後擺以 污物向外移而不粘住前緣。常用各式切割裝置來切割物質 並使流動更容易。SE435952、 SE375831 及US4347035呈現若干例子。 在污水裡的污物更難處理且污水泵的作業時間更長， 就可靠性或效率而言，上述泵都不適合處理污水。 污水泵經常1天運作1 2小時，這表示能量消耗取決 於泵的整體效率。 測試證明有發明的污水泵與已知的污水泵相比可能改 進效率達5 0% »因電動泵的壽命循環成本通常完全由能 量成本決定，此戲刻性增加將極重要。 栗葉片的設計的描述是非常槪略的，特別是前緣的掃 動。此掃動的精確定義不存在。 本紙張尺度適用中國國家桴芈（CNS > ( 210X297 » »1"""7^1 " 誚先閱讀背而之注*事項再填寫本s ) —裝------訂 ----'f :線---I - H ---- 經濟部中央櫺攀局K工消费合竹社印犁 A7 _____ Η 7 五、發明説明4 ) 測試顯示’爲獲得泵葉片的自淸能力，在前緣的掃角 分佈的設計是重要的。污物的性質需要不同掃角以提供良 好功能。 無任何資訊顯示需要什麼以使污物沿前緣依輻向滑翔 到外。僅S Ε 4 3 5 9 5 2提到前緣應是向後掃的鈍角。 SE435952及SE375831描述不同凹部 及切割裝置。它們的共同點是葉片是在肩部後。這表示， 相較於被來抽取淸水的高效率泵，可觀的效率損失。 在SE4 3 5 9 5 2中，在一實施例中，一軸向孔是 在一肩部後。它的理論是污物能被有向後掃的前緣的葉片 向外送到軸向孔。然而，這個籠統描述的實施例不適合抽 取含大量污物的污水。 在SE375831中，以相反原則，污物被送往中 ，離開長孔。這事實與上述肩部結合而不可能提液體送入 長孔。 如上述，葉片的前緣向後掃，才可能把污物向外送入 在周圍裡的長孔。若得不到這條件，則將很快發生故障。 SE9704222-0 及 SE9704223 — 8 描述 此類葉輪。當污物向外滑並到達在葉片及泵殼壁之間的長 孔，有一風險：它們粘住前緣並塞住長孔。 D Ε 6 1 4 4 2 6呈現一種設計以解決這些問題’卻 不需上述肩部。這種泵是離心泵，它的軸向入口與流道的 輻部的連接部是很尖的。因此，前緣的周邊是在流道的輻 部裡的連接部的下游。這件專利還提到另一種設計’它有 本紙張尺度適用中國國家枵羋（CNS ) Λ4^格（.210X297公处）_5- •J--：---*-----V81 ^-- - C (請先間讀背vg之：^--憑事項再填巧本頁) —訂 I ---1--ΙΜΓΙ ΓΊ-11 A7 Η 7 五、發明説明4 ) 實痕在前緣之前，實的高度往一切刀漸增，在它之後的是 螺旋溝，螺旋溝有三角形剖面及尖角且往周邊漸寬。它選 說這種解決方案的基本原理是可置換的切割裝置將切碎污 物。若這失敗，例如切割裝置變鈍，則結果將是實痕的渐 減的高度將迫使污物塞住有最小面積的部分，亦即在切割 裝置的區域裡。 上述專利所述的解決方案在一些條件下可獲得自淸能 力，但就效率、抗磨損力、壽命而言有嚴重缺點。此外， 未提供與葉片的前緣有關的極重要條件的細節，想用上述 設計來抽取污水的嘗試無意義。 發明槪述 圖式簡述 圖1呈現本發明的離心式泵殻面的三維圖。 圖2是沿本發明的泵的輻向剖開所取的圖。 圖3是朝泵殻面的軸向圖。 圖一是沿圖3的曲線B — B所取的部面圖。 經滅部中央榡擎局Η工消f合竹社印?2 主要元件對照 1 離心式泵 2 桶形入口 3 葉輪 4 穀 5 葉片 本紙张尺度適用中國國家榡準{ CNS > Λ4ϋ ( 210X297^ «Ί Γ -D - A7 B7 五、發明説明（4 ) 6 前緣 7 泵殼面 8 溝丨 9 旋轉方向 10 邊緣 11 邊緣 12 直角面 13 底部 14 過渡區 (請先間讀背而之注意事項再填寫本頁) I裝· 實施例詳述 ,ιτ 在圖式中，1是離心式泵，它有桶形入口 2。3是栗 葉輪而有桶形轂4及葉片5。6是葉片的前緣，7是泵殼 面，8是在壁裡的溝，9是旋轉方向’ z是旋轉軸。10 及1 1是溝8的邊緣，1 3是溝的底部，h是它的深度。 本發明的重要原則是不用切割裝置來切碎片在污水裡 的污物。相反的，本發明用更堅固的結構把污物外送到周 邊。這表示可觀的增加機器的壽命，特別是用來抽取污水 時。這設計還是穩定的，表示在泵殻面上的磨損將下降》 本發明的泵有特別型式的泵葉輪3，它的葉片5的前 緣6是在泵殼的上游，亦即在桶形入口 2^且前緣所在的 平面垂直於葉輪的旋轉軸ζ。 依本發明’一或數條溝8在泵殻面間且延伸在與葉輪 相反的面7上’亦即，從桶形入口 2到軸向泵殻面並有後述 本紙張尺度1¾叩中κ 1¾家炸今（i，NS ) Λ4規格（210Χ 297公釐）.7 - 經浹部中央作涞而只工消费合竹杜印奴 387977 a? H7 五、發明説明5() 形狀。溝8與葉片的前緣6合作以2污物沿泵出口的方向 移動。 爲確保把污物送過泵並爲確保其他優點，溝8有特定 路及形狀。 圖4呈現溝的弧形剖面形狀，它的特徵是它與葉輪經 過的一側的栗穀面7的平)!^Jt%^-〇。在上述桶形剖面 的溝的相反側1 1，相對泵殻面，是直角面1 2，它連續 的轉變成橢圓形底部1 3，它的橫軸的長度是溝的深度的 至少兩倍。底部的圓滑是重要的，因爲磨損性顆粒將被次 要流從面7沖走並因此可觀的減少該面上的磨損。/ 在與面7的平亂連^f|MrzQ_及溝的底部1 3之間是線 <*"* 性過渡區1 4 »在該過渡區及面7之間的角r落在2至 2 5度的區間裡，r被定義如下： r = arctan(A z /( r · A θ )) 其中，是軸向位移且r·Δ0是切線延伸。 圖3呈現溝8的掃角，其中 β = arctan (V (dr*dr + dz»dzy (r*d0)〉， 且其中dr，dz與d0是沿溝的邊緣的微分位移。 依本發明，掃角/3是1 0到4 5度以獲得最佳結果。 本紙张尺度適用中國國家柞隼（CNS ) Λ4圯枋< 21〇Χ2*Π公兑·） - 8 - (請尤閲讀背而之注&事@填寫本贫) -裝. 訂 線 387977 A7 Η 7 五、發明説明6() 藉助於本發明可獲得若干優點。以下是値得一提的·· 不需特定且永久或可置換的切割裝置，因送水功能處 理污物並帶走它們。 溝8做爲長孔密封物而發生直接效率提高，因減少透 過長孔的渗漏。 減少接近溝的面的磨損，因爲磨損性顆粒通過溝以後 從此區域被帶走。以此方式，保持良好效率，既使當污水 含磨損性顆粒。 獲得長壽，因爲在被抽取的媒介裡的磨損性顆粒保護 細節的原始形狀。這表示保持良好功能，既使在特定磨損 以後。 後表現觀點來看，本發明的泵葉輪有最佳形式，因爲 溝8的路線從軸向轉變爲輻向。Printed by the Central Economic and Technical Bureau of the Ministry of Economic Affairs and printed by Hezhusha A7 ____ B7 V. Description of the Invention 1 () Background of the Invention The present invention relates to pump impellers, and more specifically, to centrifugal or semi-shaft pumps. Pump impeller to draw water. There are many pumps and pump impellers, however, they all have some disadvantages. The most serious disadvantages are clogging and inefficiency. Sewage contains many different pollutants, and their amount and structure depend on the season and the type of area where the sewage flows. In urban areas, plastic materials, sanitary objects, and textiles are common, but industrial areas may produce abrasive particles. Experience has shown that the worst problem is that the rag sticks to the leading edge of the blade and surrounds the impeller hub. Such events cause high frequency service and inefficiency. In the agricultural and pulp industries, different types of special pumps are used to treat straw, grass, leaves and other types of organic matter. For this reason, the leading edge of the blade is swung backwards to move the dirt outward without sticking to the leading edge. Various cutting devices are commonly used to cut matter and make flow easier. Examples are shown in SE435952, SE375831, and US4347035. The sewage in the sewage is more difficult to handle and the operation time of the sewage pump is longer. In terms of reliability or efficiency, these pumps are not suitable for treating sewage. Sewage pumps often run for 12 hours a day, which means that energy consumption depends on the overall efficiency of the pump. Tests have shown that the invented sewage pump can improve efficiency by up to 50% compared to known sewage pumps »Because the life cycle cost of electric pumps is usually completely determined by energy costs, this dramatic increase will be extremely important. The description of the design of chestnut leaves is very sketchy, especially the sweeping of the leading edge. The precise definition of this sweep does not exist. The size of this paper is applicable to Chinese countries. (CNS > (210X297 »» 1 " " " 7 ^ 1 " 诮 Read the note of the back * Matters before filling in this s) —Installation ------ Order ---- 'f: line --- I-H ---- K-consumer consumption of the Central Jipan Bureau of the Ministry of Economic Affairs, Hezhu Society Printing Plough A7 _____ Η 7 V. Description of the invention 4) Tests show that The design of the self-sustaining ability and the sweep angle distribution at the leading edge is important. The nature of the dirt requires different sweep angles to provide good functionality. No information shows what is needed to make the dirt glide outward along the leading edge. Only S Ε 4 3 5 9 5 2 mentioned that the leading edge should be an obtuse angle swept backwards. SE435952 and SE375831 describe different recesses and cutting devices. What they have in common is that the blade is behind the shoulder. This represents a considerable loss of efficiency compared to high-efficiency pumps that are used to pump tritium water. In SE4 3 5 9 5 2 in one embodiment, an axial hole is behind a shoulder. Its theory is that the dirt can be sent outward to the axial holes by blades with a leading edge sweeping backwards. However, this generalized embodiment is not suitable for extracting sewage containing a large amount of dirt. In SE375831, on the opposite principle, the dirt is sent to the center and leaves the long hole. This fact is combined with the aforementioned shoulders and it is not possible to lift the liquid into the slot. As mentioned above, the leading edge of the blade is swept backwards, so that it is possible to send the dirt outward into the long holes in the surroundings. If this condition is not obtained, a malfunction will soon occur. SE9704222-0 and SE9704223 — 8 Description This type of impeller. When the dirt slides out and reaches the long hole between the blade and the pump casing wall, there is a risk: they stick to the leading edge and plug the long hole. D E 6 1 4 4 2 6 presents a design to solve these problems' without the need for the aforementioned shoulders. This pump is a centrifugal pump, and the connection between its axial inlet and the spoke of the runner is very sharp. Therefore, the periphery of the leading edge is downstream of the connection portion in the spoke portion of the flow path. This patent also mentions another design, 'It has the paper size applicable to the Chinese National Cricket (CNS) Λ4 ^ grid (.210X297 public place) _5- • J--: --- * ----- V81 ^ --C (please read back vg first: ^-fill in this page based on the matter) — order I --- 1--ΙΜΓΙ ΓΊ-11 A7 Η 7 V. Description of the invention 4) The real marks are first Before the edge, the real height gradually increased toward all the knives, and behind it was the spiral groove, which had a triangular section and sharp corners and gradually widened toward the periphery. It states that the basic principle of this solution is that the replaceable cutting device will shred dirt. If this fails, for example the cutting device becomes dull, the result will be that the decreasing height of the solid marks will force the dirt to plug the portion with the smallest area, i.e. in the area of the cutting device. The solution described in the above patent can obtain self-reliance ability under some conditions, but it has serious disadvantages in terms of efficiency, anti-wear and life. In addition, details of extremely important conditions related to the leading edge of the blade are not provided, and attempts to extract sewage using the above design are meaningless. Brief Description of the Drawings Figure 1 shows a three-dimensional view of the casing surface of a centrifugal pump according to the present invention. Fig. 2 is a view taken along a radial direction of the pump of the present invention. Fig. 3 is an axial view toward the pump casing surface. FIG. 1 is a partial plan view taken along the curve B-B in FIG. 3. The central government engine bureau of the Ministry of Economic Affairs of the People's Republic of China eliminates the seals of Hezhusha? 2 Comparison of main components 1 Centrifugal pump 2 Bucket-shaped inlet 3 Impeller 4 Valley 5 Blade This paper size applies to Chinese national standards {CNS > Λ4ϋ (210X297 ^ «Ί Γ -D-A7 B7 V. Description of the invention (4) 6 Leading edge 7 Pump casing surface 8 groove 丨 9 Direction of rotation 10 Edge 11 Edge 12 Right-angle surface 13 Bottom 14 Transition area (please read the precautions first) (Fill in this page again) I. Installation and detailed description of the embodiment, ιτ In the figure, 1 is a centrifugal pump, which has a barrel-shaped inlet 2. 3 is a chestnut impeller and has a barrel-shaped hub 4 and a blade 5. 6 is a blade The leading edge, 7 is the pump casing surface, 8 is the groove in the wall, 9 is the direction of rotation, and z is the axis of rotation. 10 and 11 are the edges of groove 8, 13 is the bottom of the groove, and h is its depth. The important principle of the present invention is that the cutting device is not used to cut the debris in the sewage. On the contrary, the present invention uses a stronger structure to send the dirt to the surroundings. This means that the life of the machine is increased significantly, especially When pumping sewage. This design is still stable, which means that the wear on the pump casing surface will be reduced. There is a special type of pump impeller 3, whose leading edge 6 of the blade 5 is upstream of the pump casing, that is, at the barrel-shaped inlet 2 ^, and the plane where the leading edge is located is perpendicular to the rotation axis ζ of the impeller. Or several grooves 8 are between the pump casing surfaces and extend on the surface 7 opposite to the impeller ', that is, from the barrel-shaped inlet 2 to the axial pump casing surface and have the paper scale 1¾ 叩 described later κ 1¾ i, NS) Λ4 specification (210 × 297 mm). 7-The central part of the crotch is used only to consume Hezhuduyinnu 387977 a? H7 V. Description of the invention 5 () Shape. The groove 8 and the leading edge of the blade 6 cooperates with 2 dirt moving in the direction of the pump outlet. To ensure that the dirt is sent through the pump and to ensure other advantages, the groove 8 has a specific path and shape. Figure 4 shows the curved cross-sectional shape of the groove, which is characterized by it Level with the chestnut noodles 7 on the side where the impeller passes)! ^ Jt% ^-〇. On the opposite side of the groove in the barrel-shaped section 11 above, it is a right-angled surface 12 opposite to the pump casing surface, which continuously transforms into an elliptical bottom 13, and the length of its horizontal axis is at least twice the depth of the groove. The smoothness of the bottom is important because the abrasive particles will be washed away from the face 7 by the secondary flow and therefore the wear on this face is significantly reduced. / Between the flat and chaotic connection ^ f | MrzQ_ and the bottom 1 3 of the groove is a line < * " * the transition zone 1 4 »The angle r between the transition zone and the plane 7 falls on In the range of 2 to 25 degrees, r is defined as follows: r = arctan (A z / (r · A θ)) where is the axial displacement and r · Δ0 is a tangential extension. Figure 3 presents the sweep angle of groove 8, where β = arctan (V (dr * dr + dz »dzy (r * d0)>), and where dr, dz and d0 are differential displacements along the edge of the groove. According to the present invention, Sweep angle / 3 is 10 to 45 degrees for best results. This paper size is applicable to the Chinese National Standard (CNS) Λ4 圯 枋 < 21〇 × 2 * Π 公 ··-8-(Please read the back And the note & 事 @ fill this poverty)-installed. 387977 A7 Η 7 V. Description of the invention 6 () With the help of the present invention, several advantages can be obtained. The following is mentioned… No need to be specific and permanent Or a replaceable cutting device, which treats dirt and removes it due to the water supply function. The groove 8 is used as a long hole seal to improve the direct efficiency and reduce the leakage through the long hole. Reduce the wear of the surface close to the groove because Abrasive particles are taken away from this area after passing through the ditch. In this way, good efficiency is maintained, even when sewage contains abrasive particles. Long life is obtained because abrasive particles in the extracted medium protect the original shape of the details. This Means to maintain good functionality even after a certain amount of wear. Ming preferred form has a pump impeller, because the route of the groove 8 to a transition from radial to axial.
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、1T 線_ 經濟部中央榡準局只工消费合竹社印裝 -9 本紙张尺度適用中國囷家榡牟（CNS > ( 21〇x2y7公Line 1T _ Central Government Bureau of the Ministry of Economic Affairs only consumes and prints printed by Hezhusha -9 This paper size is applicable to China's family furniture (CNS > (21〇x2y7 公