200946914 【發明所屬之技術領域】 本發明係關於一種具鈍體及凹凸曲面結構之微混合器 主動控制機構，尤指一種包含流體通道與外部激發聢置之 微混合控制裝置，由於該流體通道中設有鈍體及凹凸曲面 結構，因此當配合外部激發裝置以特定頻率、波形激發流 場時，流體將在鈍體侧邊尖端下方陸續形成混合渦流，且 該等渦流將在沿著下游方向前進過程中，產生拉伸以及折 疊的混合現象，俾具有提升混合效果，使流體混合更為均 勻之優點及功效者。 【先前技術】 按，近年來在分析化學以及生命科學中，微型化已經 成為一種新的趨勢。微型化流體的控制與分析亦漸漸地在 各學門研究之間顯現出其重要性；微流體的應用包括：微 陣列、DNA解、樣品的製備収制、細齡離以及偵 測、甚至環職況㈣卿。在學術界錢卫業界，微流 體於上述的應用越來越受到矚目，其潛力與好處在於：小 量的樣品以及_的消耗、能有效的減短檢測時間、降低 成本以及擁有一次輸出大量的檢測結果等優勢。 而在一般微流體系統中，除了微幫浦以外，微混合器 亦屬另-項重要的組成元件，在過去的研究中，微混合器 的重要性-直傾了解，料少數的研究目體進行相關研 5 200946914 究，直到最近幾年’才陸續有關於微混合器的研究被提出， 且有越來越多以不同概念設計出來之微混合器相繼問世。 一般微混合器之設計主要係包含一微流道，提供兩種 不同流體進入微流道中充份混合。惟，經吾等發明人研究 後發現’習知微流道之設計往往會因為流道尺寸過小、壁 面摩擦力過大、雷諾數（Reynolds number)過低等因數， 導致不同流體在微流道中各自分流而無法充份混合（即兩 種流體一直保持層流狀態而無法形成紊流狀態），如此一 來，即使經過後續與高速氣流產生交互作用之步驟，所產 生之喷霧亦皆為各自不同成分之喷霧粒子而非混合狀態喷 霧粒子。 有鐘於此，為有效解決上述流體混合不均勻之問題， 吾等發明人特地針對微混合裝置之流體通道幾何形狀加以 研究及改良外，更嘗試在流體通道中設置鈍體結構，期藉由 純體使流體產生滿流進而提升混合效果，近來更研究發現若 可搭配外部激發裝置，可進一步產生控制流場型態之作用， 並在經過不斷實驗及修正後’遂有本發明之混合控制裝置問 世。 【發明内容】 緣是，本發明之目的係為提供一種具鈍體及凹凸曲面 結構之微混合器主動控制機構’主要係利用具有鈍體及凹凸 6 200946914 曲面結構之流體通道，搭配可產生特定頻率、波形激發流場 之外部激發装置’使流體在鈍體侧邊尖端下方陸續形成混合 渦流，且該等渦流將在沿著下游方向前進過程中，產生拉伸 以及折叠的混合現象’進而產生良好的混合效果者。 為達致以上目的，本發明人特別設計一種具鈍體及凹 凸曲面結構之微混合器主動控制機構，該機構包含一流體 Q 通道及外部激發裝置’其中’該流體通道之入口端至少連 接二道以上之進口流道，出口端則可連接至其他裝置，該 流體通道内部至少設一鈍體，該流體通道係配合鈍體曲面 I狀而在對應鈍體兩側區域形成流道’並在對應鈍體下方 區域形成外凸漸擴曲面段，且進而形成一擴張狀腔室，該 腔至底端形成漸縮曲面段並連接流體通道之出口端；而該 外部激發裝置則可產生特定頻率、波形以激發流體通道之 Q 流場；藉之，透過外部激發裝置之影響，流體將在鈍體侧 邊尖端下方陸續形成混合渦流，且該等渦流將在沿著下游 方向前進過程中，產生拉伸以及折疊的混合現象，進而使 流體混合更為均勻並提升混合效率者。 如上述之具鈍體及凹凸曲面結構之微混合器主動控制 機構’其中，該鈍體之兩側曲面係可為凹形曲面者。 如上述之具鈍體及凹凸曲面結構之微混合器主動控制 機構’其中’該鈍體之底面係可為單一内凹弧形曲面，或 7 200946914 為相鄰内凹弧形曲面者。 機構j之具鈍體及㈣曲面結構之微混合11主動控制 其中’概心__、可為㈣目連之曲面， 而底面係可為_内凹轉曲面者。 ❹ 機槿j之、鈍體及凹凸曲面結構之微混合11主動控制 機=，其中，該鈍體内部係可設—人狀通道，且通道出口 係”於純體兩側曲面與底面曲面相接處者。 浦者 如上述之具鈍體及凹凸曲面結構之微混合器主動控制 機構’、其巾，料麵發裝置係可設置於流贿道之進口 流道或出口端’且該外部激發裝置係可為電磁閥或壓電幫 如上述之具鈍體及凹凸曲面結構之微混合器主動控制 機構’其巾’料部激發裝置射設·對舰體通道之 純體兩·面尖端區域，且該外部激㈣㈣可為微致動 器或流量感測器或聲波驅動器者。 如上述之具鈍體及凹凸曲面結構之微混合器主動控制 機構’其巾，斜雜發裝置係可設置於越通道之任一 位置，且該外部激發裝置係可為微型幫浦者。 【實施方式】 關於本發明之技術手段，兹舉若干較佳可行實施例配 合圖式於τ文進行詳減明，供耻深人了解並認同本 8 200946914 發明。 明參閱第la、lb、I。、id圖所示，本發明之微混 合器主動控制機構主要包含—流體通I及外部激發裝 置；其中： 該流體通道1兩端分別為入口端11及出口端12,其入 口端11係連接至同軸直向進口流道13，俾可供不同成分之 越_注人趙财i巾，而出口端12财連接至其他 ❹ 裝置（例如其他混合襄置或喷嘴口，圖面未示出）；該流體 ϋ道1内部設-鈍體2，該鈍體2之上尖端係朝向流體通 道1之人σ% 11 ’純體2之兩側曲面之形狀係可如第a、 lb、lc、Id圖所示之凹形曲面，而底面則可為相鄰内凹 弧形曲面；此外，該流體通道丄同時亦配合純體2之形狀 及設置而在對應鈍體2兩侧區域形成概呈漸縮狀之流道 ❹ U ’該流體通道！並在對應鈍體2下方區域形成外凸漸擴 曲面段15，且進而形成一擴張狀腔室151，該腔室15丨底 端形成漸縮曲面段16並連接流體通道it出口端12 · _ Μ外部激發裝置則以可產生特定頻率、波形對流體通 道之流場產生特定影響之激發裝置為主；例如，該外 钱置係可為如fla圖所示之設置於流體通道i之出口 端12 (或入口端）之電侧30 (或壓電幫浦），由於該電 磁閥30 (或壓電幫浦）可啸概體之缝變化，因切 9 200946914 干擾流體產生影響；又，該外部激發裝置亦可為如第lb、 lc圖所示之設置於對應流體通道之鈍體兩側曲面尖端區 域之微致動器31 (如第lb圖所汴）或聲波驅動器32 (如 第lc圖所不）或流量感測器（圖面未綠示），由於該微致 動器31或聲波驅動器32或流量感測器可產生不同頻率強 度之壓力波’因此可干擾流體產生影響；再者，該外部激 發裝置以可為係可設置於流體通道1之任何位置之微型幫 浦（圖面未繪示），由於該微型幫浦可不斷對流體通道1施 壓形成間歇性供量控制，因此無論設置於流體通道之何處 皆可干擾流體產生影響；此外’本發明之外部激發裝置除 可單獨採用第la、lb、lc圖所示之激發裝置以外，本發 明當然亦可同時搭配兩組或兩組以上之激發裝置，甚或如 第ld圖所示將上述多種激發裝置同時裝設於同一流體通 道1上，亦為可行做法之一。 藉以上設置’當不同流體分別由進口流道13進入流體 通道1内之流道14處，此時將先遭遇鈍體2對流體產生之 干擾作用’進而分流進入鈍體2兩侧曲面與流體通道1内BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an active control mechanism for a micro-mixer having a bluff body and a concave-convex curved surface structure, and more particularly to a micro-hybrid control device including a fluid passage and an external excitation device, since the fluid passage is It has a bluff body and a concave-convex curved surface structure. Therefore, when an external excitation device is used to excite the flow field at a specific frequency and waveform, the fluid will gradually form a mixing vortex below the tip end of the bluff body, and the eddy currents will advance in the downstream direction. In the process, the mixing phenomenon of stretching and folding is produced, and the enthalpy has the advantages and effects of improving the mixing effect and making the fluid mixing more uniform. [Prior Art] According to recent years, in analytical chemistry and life sciences, miniaturization has become a new trend. The control and analysis of miniaturized fluids has gradually become important among various studies; the application of microfluidics includes: microarray, DNA solution, sample preparation, fine separation and detection, and even ring Occupation (4) Qing. In the academic industry, the micro-fluids are getting more and more attention in the above applications. The potential and benefits are: small sample and _ consumption, can effectively reduce the detection time, reduce costs and have a large output. Advantages such as test results. In the general microfluidic system, in addition to the micro-pump, the micro-mixer is another important component. In the past research, the importance of the micro-mixer - straightforward understanding, a small number of research objectives In the related research 5 200946914, until recently, research on micro-mixers has been proposed, and more and more micro-mixers designed with different concepts have been introduced. The design of a typical micromixer consists primarily of a microchannel that provides sufficient mixing of two different fluids into the microchannel. However, after investigation by our inventors, it was found that the design of the conventional microchannels is often caused by the small size of the flow channel, the excessive friction of the wall surface, and the low Reynolds number, resulting in different fluids in the microchannels. Divided and not fully mixed (ie, the two fluids remain laminar and cannot form a turbulent state), so that even after subsequent interaction with the high-speed airflow, the resulting sprays are different. Spray particles of the ingredients rather than mixed state spray particles. In order to effectively solve the problem of uneven mixing of the above fluids, the inventors have specially studied and improved the fluid passage geometry of the micro-mixing device, and tried to set a bluff body structure in the fluid channel. The pure body makes the fluid full flow and enhances the mixing effect. Recently, it has been found that if it can be combined with an external excitation device, the effect of controlling the flow field type can be further generated, and after continuous experiment and modification, the hybrid control of the present invention is adopted. The device came out. SUMMARY OF THE INVENTION The purpose of the present invention is to provide a micro-mixer active control mechanism with a bluff body and a concave-convex curved surface structure. The main purpose is to utilize a fluid passage having a bluff body and a concave-convex 6 200946914 curved structure, which can be combined to produce a specific The external excitation device of the frequency and waveform excitation flow field causes the fluid to form a mixing vortex below the tip end of the bluff body, and the vortex will generate a mixing phenomenon of stretching and folding during the advancement along the downstream direction. Good mix effect. In order to achieve the above object, the present inventors have specially designed an active control mechanism for a micro-mixer having a bluff body and a concave-convex curved surface structure, the mechanism comprising a fluid Q channel and an external excitation device 'where the inlet end of the fluid channel is connected at least two The inlet flow passage above the road, the outlet end can be connected to other devices, and the fluid passage has at least one bluff body inside, and the fluid passage is matched with the bluff body surface I to form a flow passage on both sides of the corresponding bluff body and Forming a convexly divergent curved surface segment corresponding to the lower portion of the bluff body, and further forming an expanded cavity, the cavity forming a tapered curved section to the bottom end and connecting the outlet end of the fluid passage; and the external excitation device can generate a specific frequency a waveform to excite the Q flow field of the fluid passage; thereby, by the influence of the external excitation device, the fluid will gradually form a mixing vortex below the tip end of the bluff body, and the vortex will be generated during the advancement along the downstream direction. The mixing phenomenon of stretching and folding, which makes the fluid mixing more uniform and improves the mixing efficiency. The micro-mixer active control mechanism having the blunt body and the concave-convex curved surface structure as described above, wherein the curved surface on both sides of the bluff body may be a concave curved surface. The micromixer active control mechanism of the bluff body and the concave-convex curved surface structure as described above may be a single concave curved curved surface, or 7 200946914 is an adjacent concave curved curved surface. The mechanism j has a bluff body and (4) a micro-hybrid 11 active control of the curved surface structure. The 'general __ can be the curved surface of the (4) mesh, and the bottom surface can be the _ concave curved surface.微 Machine 槿, blunt body and concave-convex surface structure of the micro-hybrid 11 active control machine =, wherein the bluff body can be set - human channel, and the channel exit "on both sides of the pure body surface and the bottom surface The above-mentioned micro-mixer active control mechanism with bluff body and concave-convex surface structure, the towel, the material surface-emitting device can be set at the inlet flow channel or the outlet end of the bribery road and the outside The excitation device can be a solenoid valve or a piezoelectric gang, such as the above-mentioned micro-mixer active control mechanism with a blunt body and a concave-convex curved surface structure, and its material, the material excitation device, and the pure body two-face tip of the hull passage. The area, and the external excitation (4) (4) may be a micro-actuator or a flow sensor or a sound wave driver. The above-mentioned micro-mixer active control mechanism with a bluff body and a concave-convex curved surface structure It is disposed at any position of the cross-channel, and the external excitation device can be a micro-pumper. [Embodiment] Regarding the technical means of the present invention, some preferred feasible embodiments are combined with the figure to reduce the τ text. Shame The invention understands and agrees with the invention of the present invention. The invention discloses a micro-mixer active control mechanism mainly comprising a fluid communication I and an external excitation device, wherein: the fluid channel 1 The two ends are an inlet end 11 and an outlet end 12, respectively, and the inlet end 11 is connected to the coaxial straight inlet flow passage 13, and the different components can be used for the different ingredients, and the outlet end is connected to the other. ❹ device (for example, other mixing devices or nozzle ports, not shown); the fluid channel 1 is internally provided with a bluff body 2, and the tip of the bluff body 2 is directed toward the fluid channel 1 by σ% 11 'pure The shape of the curved surface on both sides of the body 2 can be a concave curved surface as shown in the first, lb, lc, and Id diagrams, and the bottom surface can be an adjacent concave curved curved surface; in addition, the fluid passage 丄 is also matched with pure The shape and arrangement of the body 2 form a substantially tapered flow path ' U ' in the region of the corresponding bluff body 2 and form a convexly divergent curved surface segment 15 in the lower region of the corresponding bluff body 2, and further Forming an expansion chamber 151, the bottom end of the chamber 15 is formed with a tapered curved section 16 and connected The fluid channel is at the outlet end 12 · _ Μ the external excitation device is mainly an excitation device that can generate a specific frequency, the waveform has a specific influence on the flow field of the fluid channel; for example, the external money system can be as shown in the fla diagram The electric side 30 (or piezoelectric pump) disposed at the outlet end 12 (or the inlet end) of the fluid passage i, due to the solenoid valve 30 (or piezoelectric pump), can change the seam of the body, due to cut 9 200946914 Interfering with the fluid; further, the external excitation device may also be a microactuator 31 disposed on the curved tip end region of the bluff body of the corresponding fluid channel as shown in FIGS. 1b and 1c (as shown in FIG. 1b) Or the sonic driver 32 (as shown in Figure lc) or the flow sensor (not shown in green), because the microactuator 31 or the sonic driver 32 or the flow sensor can generate pressure waves of different frequency intensities' Therefore, the influence of the fluid may be disturbed; further, the external excitation device may be a micro-pull (not shown) that can be disposed at any position of the fluid channel 1, since the micro-piston can continuously flow to the fluid channel 1 Pressure to form intermittent supply control Therefore, no matter where the fluid passage is disposed, the influence of the fluid can be disturbed; in addition, the external excitation device of the present invention can be combined with the excitation device shown in the first, the lb, and the lc. It is also one of the feasible methods to mount the above-mentioned plurality of excitation devices on the same fluid channel 1 as a group or more than two or more excitation devices, or even as shown in FIG. By the above setting 'When different fluids enter the flow channel 14 in the fluid channel 1 from the inlet flow channel 13, respectively, the interference effect of the bluff body 2 on the fluid will be encountered first, and then the flow and the fluid on both sides of the bluff body 2 are shunted. In channel 1
Hi pa B ’此時’上述各外部激發裝置（例如電磁閥或壓電 浦3〇、微致動器31或聲波驅動器32、微型幫浦或全部） 斤產生之特定頻率或波形或壓力將對流體通道1之流場產 生激發、、生士 乂成流量變化，進而使流體在鈍體2侧邊尖端下 200946914 方形成第一個混合滿流.A，如第2圖所示。而當第2圖所示 之第一個混合渦流A形成後，透過外部激發裝置進行異相 驅動’使得流體將於鈍體侧邊上方形成第二個混合渦流B， 如第3圖所示。接下來再透過本流體通道1之曲面幾何形 狀設計’第2、3圖中所形成的渦流在沿著下游方向前進 過程中，將進一步產生拉伸以及折疊的混合現象c，如第4 圖所示，如此一來，利用流體在前進過程中產生之拉伸以 及折疊的混合現象’可使流體混合更為均勻，提升流體混 合效果。 以上所述乃係針對流體通道搭配外部激發裝置之基本 實施例之實施例說明’以下則係針對本發明之流體通道内 部鈍體之不同形狀實施例作進一步說明，如第5圖所示， 本發明之鈍體2之兩側曲面係可為凹形曲面，而底面係可 為單-内凹弧形曲面；如第6圖所示，該鈍體2之兩侧曲 面係可為凸凹相連之曲面’而底面係可為相鄰内凹弧形曲 面，更可-步如第7圖所示，該紐2之兩側曲面係可為 凸凹相連之曲面，而底面係可為相鄰内凹弧形曲面，且該 鈍體内部係設-人狀通道21，且通道21出口係介於鈍體2 兩侧曲面與底面曲面相接處者。 I由上述說明可知’本發明之主要藉由流體通道之幾 可升邊與鈍體結構搭g叫部激㈣置之設計，使流體遭遇 200946914 純體先產生渦流，再透過外部激發裝置之激發，使渦流在 沿者下游方向前進過程中，產生拉伸以及折曼的混合現 象’進而使流體混合更為均勻，俾有效提升混合效果。 綜上所述’本發明所揭露之技術手段確可達致預期之 目的與魏且具長遠進步性，誠屬可供產業上湘之發明 纟誤’爰依法提出巾請，懇祈肖上惠予詳審並賜准發明 專利，至感德馨。 © 惟以上所述者，僅為本發明之較佳實施例，當不能以 此限定本發明實施之範圍，即大凡依本發明申請專利範圍 及發明說明書内容所作之等效變化與修飾，皆應仍屬本發 明專利涵蓋之範圍内。 【圖式簡單說明】 第la圖係本發明微混合器主動控制機構第一實施例之示 意圖。 ® 第lb圖係本發明微混合器主動控制機構第二實施例之示 意圖。 第lc圖係本發明微混合器主動控制機構第三實施例之示 意圖。 第Id圖係本發明微混合器主動控制機構第四實施例之示 意圖。 第2圖係本發明之流體通道内部渦流狀態示意圖一。 12 200946914 第3圖係本發明之流體通道内部渦流狀態示意圖二。 第4圖係本發明之流體通道内部渦流狀態示意圖三。 第5圖係本發明之不同形狀鈍體結構示意圖一。 第6圖係本發明之不同形狀鈍體結構示意圖二。 第7圖係本發明之不同形狀鈍體結構示意圖三。 【主要元件符號說明】 1一流體通道 11 一入口端 12—出口端 Ο 13一進口流道 14--流道 15—漸擴曲面段 151—腔室 16--漸縮曲面段 2—純體 21—通道 30—電磁閥或壓電幫浦 31—微致動器 32--聲波驅動器 A--第一個渦流B--第二個渦流 C--拉伸以及折疊的混合現象Hi pa B 'At this time, the specific frequency or waveform or pressure generated by each of the above external excitation devices (such as solenoid valve or piezoelectric actuator, microactuator 31 or sonic driver 32, micro pump or all) will be The flow field of the fluid channel 1 generates an excitation, and the flow of the raw gem is changed, so that the fluid forms the first mixed full flow .A at the side of the side of the bluff body 2, 200946914, as shown in Fig. 2. When the first mixing vortex A shown in Fig. 2 is formed, the heterogeneous driving is performed by the external excitation means so that the fluid forms a second mixing vortex B above the side of the bluff body, as shown in Fig. 3. Then, through the curved surface geometry design of the fluid channel 1 , the eddy current formed in the second and third drawings will further produce a mixing phenomenon of stretching and folding during the advancement in the downstream direction, as shown in FIG. 4 . In this way, the mixing phenomenon of stretching and folding generated by the fluid during the advancement can make the fluid mixing more uniform and enhance the fluid mixing effect. The above description is directed to the embodiment of the basic embodiment of the fluid passage with the external excitation device. 'The following is a further description of the different shape embodiments of the fluid passage internal bluff body of the present invention, as shown in FIG. 5, The curved surface on both sides of the bluff body 2 of the invention may be a concave curved surface, and the bottom surface may be a single-concave curved curved surface; as shown in FIG. 6, the curved surfaces on both sides of the bluff body 2 may be convex and concave. The curved surface 'the bottom surface can be an adjacent concave curved curved surface, and the step can be as shown in FIG. 7 , the curved surface on the two sides of the New 2 can be a convex and concave curved surface, and the bottom surface can be an adjacent concave surface. The curved surface is curved, and the bluff body is internally provided with a human-like passage 21, and the outlet of the passage 21 is interposed between the curved surface of the bluff body 2 and the curved surface of the bottom surface. I can be seen from the above description that the present invention mainly adopts the design of the riser and the bluff body structure of the fluid channel, so that the fluid encounters the 200946914 pure body first to generate eddy current, and then is excited by the external excitation device. In the process of advancing the eddy current in the downstream direction of the ridge, a mixing phenomenon of stretching and folding is generated, thereby making the fluid mixing more uniform, and effectively improving the mixing effect. In summary, the technical means disclosed in the present invention can achieve the intended purpose and Wei and have long-term progress. It is a fallacy of the invention for the industry. Approved and granted the invention patent, to the sense of Dexin. The above is only the preferred embodiment of the present invention, and the scope of the present invention should not be limited thereto, that is, the equivalent changes and modifications made by the scope of the present invention and the contents of the description of the invention should be It is still within the scope of the invention patent. BRIEF DESCRIPTION OF THE DRAWINGS The first drawing is a schematic view of a first embodiment of the active control mechanism of the micromixer of the present invention. ® lb is a schematic representation of a second embodiment of the active control mechanism of the micromixer of the present invention. The lcth diagram is the schematic of the third embodiment of the active control mechanism of the micromixer of the present invention. The first Id diagram is a schematic representation of a fourth embodiment of the micromixer active control mechanism of the present invention. Figure 2 is a schematic view of the vortex state inside the fluid passage of the present invention. 12 200946914 Figure 3 is a schematic diagram of the internal eddy current state of the fluid passage of the present invention. Figure 4 is a third schematic view of the internal vortex state of the fluid passage of the present invention. Figure 5 is a schematic view of a blunt body structure of different shapes of the present invention. Figure 6 is a schematic view 2 of the bluff body structure of the different shapes of the present invention. Figure 7 is a schematic view 3 of the bluff body structure of the different shapes of the present invention. [Main component symbol description] 1 a fluid passage 11 an inlet end 12 - an outlet end Ο 13 an inlet flow passage 14 - a flow passage 15 - a divergent curved surface section 151 - a chamber 16 - a tapered curved section 2 - a pure body 21—channel 30—solenoid valve or piezoelectric pump 31—microactuator 32—sonic driver A—first vortex B—second vortex C—stretching and folding
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