TWI698387B - Powder and granule transport device - Google Patents
Powder and granule transport device Download PDFInfo
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- TWI698387B TWI698387B TW108141689A TW108141689A TWI698387B TW I698387 B TWI698387 B TW I698387B TW 108141689 A TW108141689 A TW 108141689A TW 108141689 A TW108141689 A TW 108141689A TW I698387 B TWI698387 B TW I698387B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/40—Feeding or discharging devices
- B65G53/42—Nozzles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/40—Feeding or discharging devices
- B65G53/50—Pneumatic devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/66—Use of indicator or control devices, e.g. for controlling gas pressure, for controlling proportions of material and gas, for indicating or preventing jamming of material
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Abstract
Description
本發明係關於一種輸送裝置,詳而言之,係關於一種粉粒體輸送裝置。The present invention relates to a conveying device, in detail, to a powder and granular conveying device.
噴流泵(jet pump)係一種利用壓力較高的工作流體導引壓力較低的主流體以進行流體間質量與能量傳遞,最後輸出壓力與質量混合流體的混流輸送機械元件。由於噴流泵係以氣送的方式進行介質的輸送,其間不具備任何無法承受高溫條件操作之機械傳動元件,如:控制閥、旋轉閥、螺旋輸送機等,故與具有轉軸機構的機械閥相較,於高溫介質輸送方面具有更高可靠性,因而噴流泵特別適用於高溫介質的輸送狀態。A jet pump is a mixed flow conveying mechanical element that uses a higher pressure working fluid to guide a lower pressure main fluid for mass and energy transfer between fluids, and finally outputs a mixed fluid of pressure and mass. Since the jet pump is used to transport the medium by air, it does not have any mechanical transmission components that cannot withstand high-temperature operation, such as control valves, rotary valves, screw conveyors, etc., so it is comparable to mechanical valves with a rotating shaft mechanism. In contrast, it has higher reliability in the transportation of high-temperature media, so the jet pump is particularly suitable for the transportation of high-temperature media.
噴流泵根據噴嘴結構可分為中心噴流泵(central jet pump)與環形噴流泵(annular jet pump or ring jet pump)兩種。環形噴流泵於管路外部環狀設計噴嘴裝置,輸送主流體則從管路內部中間通過,其中,管路外部環狀排列的噴嘴將工作流體以高壓噴射進入管路,而於管路混合室內形成微負壓環境,使上游主流體牽引進入混合室,與工作流體混合,再經由漸縮噴口輸出混合流體,完成高壓工作流體吸引低壓主流體的混和輸送程序,環形噴流泵由於吸入通道在結構中間,與管路共軸平行,可使主流體連續供應輸送,有利於固體顆粒,如礦石、膠囊與豆類等的輸送。相對地,中心噴流泵的噴嘴置於管路中間,輸送主流體環繞著噴嘴外圍,最常見即為三通文氏管(venturi tube)之設計,三通文氏管的主體是一前端設計有擴孔腔的圓管,擴孔腔上游處為混合室,混合室的側面設計有主流體入口,混合室內設計有連通工作流體的噴嘴,噴嘴出口正對混和室漸縮段,形成漸縮噴口,再與擴孔腔連接輸出輸送的流體,運作時,經由噴嘴將工作流體高壓噴射進混合室,高速噴射的工作流體於混合室內形成微負壓環境,使旁通進入的混合室的主流體捲吸牽引進入混合室,與工作流體混合達到均速均壓後,再通過漸縮噴口,由擴孔腔輸出混合流體,完成高壓工作流體吸引低壓主流體的混合輸送程序,中心噴流泵有別於環形噴流泵的多孔噴嘴設計,中心噴流泵係為單一噴嘴,當工作流體由噴嘴噴出後,具有較高的流速,可使混合流體自擴孔腔輸出後具有較大的揚程,可適用於需要長距離輸送的應用。Jet pumps can be divided into central jet pump and annular jet pump or ring jet pump according to the nozzle structure. The annular jet pump is designed with a nozzle device on the outside of the pipeline, and the main fluid is conveyed through the middle of the pipeline. Among them, the annular nozzles on the outside of the pipeline spray the working fluid into the pipeline at high pressure, and in the pipeline mixing chamber A micro-negative pressure environment is formed to draw the upstream main fluid into the mixing chamber, mix with the working fluid, and then output the mixed fluid through the tapered nozzle to complete the mixed delivery process of the high-pressure working fluid attracting the low-pressure main fluid. The annular jet pump is due to the suction channel in the structure In the middle, coaxially parallel to the pipeline, the main fluid can be continuously supplied and transported, which is beneficial to the transport of solid particles such as ore, capsules and beans. In contrast, the nozzle of the central jet pump is placed in the middle of the pipeline, and the main fluid is conveyed around the periphery of the nozzle. The most common design is the three-way venturi tube. The main body of the three-way venturi tube is designed with a front end. The round pipe of the reaming cavity is a mixing chamber upstream of the reaming cavity. The side of the mixing chamber is designed with a main fluid inlet. The mixing chamber is designed with a nozzle communicating with the working fluid. The nozzle outlet faces the tapered section of the mixing chamber to form a tapered nozzle. , And then connected with the reaming cavity to output the fluid. During operation, the working fluid is sprayed into the mixing chamber at high pressure through the nozzle. The high-speed sprayed working fluid forms a slight negative pressure environment in the mixing chamber, so that the main fluid in the mixing chamber is bypassed The entrainment draws into the mixing chamber and mixes with the working fluid to achieve a uniform velocity and pressure, and then through the tapered nozzle, the mixed fluid is output from the reaming cavity to complete the mixing and delivery process of the high-pressure working fluid attracting the low-pressure main fluid. The center jet pump is different In the design of the multi-hole nozzle of the annular jet pump, the center jet pump is a single nozzle. When the working fluid is ejected from the nozzle, it has a higher flow rate, which can make the mixed fluid have a larger head after being output from the expanding cavity, which is suitable for Applications requiring long-distance transportation.
另外,於移動床反應系統,催化劑顆粒粒徑約為1~3mm,且連續循環於密閉系統內進行化學反應,由於氣送式的載氧體循環方式較機械閥式有較佳的高溫操作可靠性與密封性,故廣泛應用於移動床反應系統的催化劑循環輸送,其中,由於噴流泵具有顆粒輸送與計量的功能,便成為移動床反應系統重要的催化劑輸送與計量氣送元件,惟於化工生產製程中,反應器與輸送系統的氣流需要彼此做區隔,以免互相混合影響製程,甚至造成公安危險,此也是此類系統的研發重點。In addition, in the moving bed reaction system, the particle size of the catalyst is about 1~3mm, and it is continuously circulated in a closed system for chemical reactions. Because the air-carrying oxygen carrier circulation method has better high temperature operation reliability than the mechanical valve type It is widely used in the circulation of catalysts in moving bed reaction systems because of its tightness and tightness. Among them, the jet pump has the function of particle conveying and metering. It has become an important catalyst conveying and metering gas delivery component in the moving bed reaction system. It is only used in chemical production. In the process, the airflow of the reactor and the conveying system needs to be separated from each other to avoid mixing with each other to affect the process and even cause public security risks. This is also the focus of the research and development of such systems.
因此,如何找出一種有關粉粒體之輸送技術,特別是,如何讓反應器與輸送系統之間能氣體隔離,同時讓噴流泵於固體顆粒輸送時有較佳效果,此將成為本技術領域人員急於追求與努力之目標。Therefore, how to find a conveying technology for powders and particles, especially how to make the reactor and the conveying system be gas-isolated, and at the same time make the jet pump have a better effect when conveying solid particles, this will become the technical field The personnel are eager to pursue and strive for the goal.
有鑑於此,本發明提出一種適用高溫操作的氣送元件設計,用以輸送粉體或固體顆粒,為了避免氣送元件上游反應器與下游噴流泵的氣流混合,故氣送元件之上下游能氣體隔絕,並且能依據輸出量需求進行輸出量調整與優化,藉以維持噴流泵之輸送效率。In view of this, the present invention proposes a design of a gas delivery element suitable for high-temperature operation to transport powder or solid particles. In order to avoid the mixing of the gas flow between the upstream reactor of the gas delivery element and the downstream jet pump, the upstream and downstream energy of the gas delivery element The gas is isolated, and the output can be adjusted and optimized according to the output demand to maintain the delivery efficiency of the jet pump.
本發明為一種粉粒體輸送裝置,係包括:主流體輸入段,其用以輸送主流體;工作流體輸入段,其連接壓縮氣源以輸送該壓縮氣源所輸出之工作流體;負壓牽引段,分別連接該主流體輸入段及該工作流體輸入段,以使輸入該負壓牽引段之該工作流體牽引該主流體移動;以及喉口組件,其連接該負壓牽引段,用以輸出該主流體與該工作流體,其中,於該主流體輸入段或該負壓牽引段處設有旁通氣源輸入孔,以提供旁通氣流進入該負壓牽引段。The present invention is a powder and granular conveying device, which includes: a main fluid input section, which is used to convey the main fluid; a working fluid input section, which is connected to a compressed gas source to convey the working fluid output by the compressed gas source; and negative pressure traction Section, respectively connecting the main fluid input section and the working fluid input section, so that the working fluid input to the negative pressure traction section pulls the main fluid to move; and a throat assembly, which is connected to the negative pressure traction section for output The main fluid and the working fluid, wherein a bypass air source input hole is provided at the main fluid input section or the negative pressure traction section to provide a bypass air flow into the negative pressure traction section.
綜上可知,本發明提出一種粉粒體輸送裝置,藉由旁通氣流的進氣設計,可調整該主流體輸入段的壓力狀態,使得該粉粒體輸送裝置中該主流體輸入段與該負壓牽引段之間具有氣體隔絕的效果,另外,本發明更可透過在該工作流體輸入段與該負壓牽引段內設置噴嘴組件和螺桿組件,即時調整噴嘴組件之噴嘴位置以及噴嘴截面積,藉此除了調整該主流體輸入段的壓力狀態外,更能使固態粉粒體的輸送效果作最佳化調整,如此可以單一氣源達到固態粉粒體之控量出料、循環輸送及調控氣封的操作目的,特別適用於產出氣體產物的移動床化學迴路系統。In summary, the present invention proposes a powder and granular material conveying device, which can adjust the pressure state of the main fluid input section through the air intake design of the bypass airflow, so that the main fluid input section and the The negative pressure traction section has the effect of gas isolation. In addition, the present invention can further adjust the nozzle position and nozzle cross-sectional area of the nozzle assembly by arranging the nozzle assembly and the screw assembly in the working fluid input section and the negative pressure traction section. Therefore, in addition to adjusting the pressure state of the main fluid input section, the conveying effect of the solid powder can be optimized, so that a single gas source can achieve the controlled discharge, circulating transportation and The operation purpose of regulating the gas seal is especially suitable for the moving bed chemical loop system that produces gas products.
以下藉由特定的具體實施形態說明本發明之技術內容,熟悉此技藝之人士可由本說明書所揭示之內容輕易地瞭解本發明之優點與功效。然本發明亦可藉由其他不同的具體實施形態加以施行或應用。The following describes the technical content of the present invention with specific specific embodiments. Those familiar with the art can easily understand the advantages and effects of the present invention from the content disclosed in this specification. However, the present invention can also be implemented or applied by other different specific embodiments.
須知,本說明書所附圖式其繪示之結構、比例、大小等,均僅用以配合說明書所揭示之內容,以供熟悉此技藝之人士之瞭解與閱讀,並非用以限定本發明可實施之限定條件,故不具技術上之實質意義,任何結構之修飾、比例關係之改變或大小之調整,在不影響本發明所能產生之功效及所能達成之目的下,均應仍落在本發明所揭示之技術內容得能涵蓋之範圍內。同時,本說明書中所引用之如「上」、「第一」、「第二」及「一」等之用語,亦僅為便於敘述之明瞭,而非用以限定本發明可實施之範圍,其相對關係之改變或調整,在無實質變更技術內容下,當亦視為本發明可實施之範疇。It should be noted that the structure, proportion, size, etc. shown in the drawings in this manual are only used to match the content disclosed in the manual for the understanding and reading of those familiar with the art, and are not used to limit the implementation of the present invention. Therefore, it does not have any technical significance. Any structural modification, proportional relationship change, or size adjustment should still fall within the scope of the present invention without affecting the effects and objectives that can be achieved. The technical content disclosed by the invention can be covered. At the same time, the terms such as "above", "first", "second" and "one" cited in this specification are only for ease of description and are not used to limit the scope of the present invention. The change or adjustment of the relative relationship shall be regarded as the scope of the implementation of the present invention without substantial change in the technical content.
第1圖為本發明之粉粒體輸送裝置的結構圖。本發明之粉粒體輸送裝置,其目的是令上游反應器(如第4和5圖中之元件標號33)的氣體(例如氫)與下游固氣混合室的工作流體(例如空氣)能夠氣體隔離,亦即藉由調整調整主流體(粉粒體)其輸入端的壓力狀態,使得該區段壓力為零,進而達到粉粒體輸送裝置之上下游氣體隔離之目的,特別適用於高溫粉粒體的輸送。如第1圖所示,本發明之粉粒體輸送裝置1包括主流體輸入段11、工作流體輸入段12、負壓牽引段13以及喉口組件14。Figure 1 is a structural diagram of the powder or granular conveying device of the present invention. The purpose of the powder and granular conveying device of the present invention is to enable the gas (e.g., hydrogen) of the upstream reactor (e.g.,
主流體輸入段11用於輸送主流體,於此所述之主流體係指來自上游反應器的粉粒體,具體而言,上游反應器會產生混合氣體和固態的粉粒體,而所產生氣體通常會排出,且希望僅有固態的粉粒體進入粉粒體輸送裝置1,故正常情況下,主流體輸入段11是供主流體通過。The main
工作流體輸入段12連接一壓縮氣源(未圖示),用於輸送來自壓縮氣源之工作流體;負壓牽引段13分別與主流體輸入段11及工作流體輸入段12連接,以令主流體自主流體輸入段11落入負壓牽引段13後與工作流體一同向喉口組件14移動;另外,喉口組件14連接負壓牽引段13,用以輸出主流體與工作流體,其中,於主流體輸入段11或負壓牽引段13處,設有旁通氣源輸入孔110、130,可提供來自壓縮氣源或其他氣源之旁通氣流(空氣)。於一實施例中,該壓縮氣源例如為低壓型空壓機2(如第4和 5圖所示)。The working
於上述架構下,工作流體與主流體將於負壓牽引段13中混合,由於主流體為固態粉粒體,而工作流體為氣體,故由工作流體牽引主流體往喉口組件14移動並輸出,易言之,當工作流體進入負壓牽引段13時,負壓牽引段13會呈現負壓狀態,然本發明目的是為了讓上游反應器的氣體與下游的工作流體能夠氣體隔離,故本發明將會由旁通氣源輸入孔110、130輸入適當的旁通氣流至主流體輸入段11或至負壓牽引段13處,以使部分主流體輸入段11變為零壓狀態,而靠近負壓牽引段13的區段通常仍存在微壓差,但由於主流體輸入段11部分區段為零壓,藉此能達到上下游氣體隔離的目的。另外,於主流體輸入段11部分區段為零壓狀態下,主流體將以重力方式落入負壓牽引段13,也就是僅靠主流體(固態粉粒體)重量而掉落至負壓牽引段13中。Under the above structure, the working fluid and the main fluid will be mixed in the negative
須說明者,旁通氣源輸入孔110、130可無須同時存在,僅需有其中一者即可,例如旁通氣流可由負壓牽引段13處的旁通氣源輸入孔130送入,於此設計下,當旁通氣流從負壓牽引段13下方送入時,也能藉此帶起沉底的主流體,避免主流體堆積於負壓牽引段13下方。It should be noted that the bypass air
另外,粉粒體輸送裝置1可如噴流泵之設計,例如中心噴流泵或是環形噴流泵,其功能主要是令工作流體能帶動主流體移動即可,為了方便說明,本實施例與後續其他實施例將以中心噴流泵的型態進行示例與說明。In addition, the powder and granular conveying
第2圖為本發明之粉粒體輸送裝置另一實施例的結構圖。如圖所示,粉粒體輸送裝置1之主流體輸入段11、工作流體輸入段12、負壓牽引段13以及喉口組件14與第1圖所示相同,於此不再贅述,於本實施例中,粉粒體輸送裝置1復包括噴嘴組件15以及螺桿組件16。Figure 2 is a structural diagram of another embodiment of the powder and granular material conveying device of the present invention. As shown in the figure, the main
噴嘴組件15設置於工作流體輸入段12與負壓牽引段13內且能沿工作流體輸入段12之軸向移動,具體來說,噴嘴組件15由工作流體輸入段12進入並往負壓牽引段13延伸,噴嘴組件15可設於負壓牽引段13中心處,於此實施例中,工作流體係由噴嘴組件15向喉口組件14方向輸出,而噴嘴組件15與工作流體輸入段12之間為氣體密封。The
螺桿組件16設置於噴嘴組件15內且能沿噴嘴組件15之軸向移動,具體來說,螺桿組件16位於噴嘴組件15內部且兩者可共軸心設置,其中,噴嘴組件15能於工作流體輸入段12與負壓牽引段13內前後移動,其目的是調整工作流體其輸出位置,也就是壓縮氣源所輸出之工作流體進入到負壓牽引段13時的位置,此將會影響工作流體帶動主流體的效能;另外,螺桿組件16能在噴嘴組件15內前後移動,其目的是控制工作流體的輸出量。The
運作時,工作流體輸入段12可接受來自外部之壓縮氣源所提供的工作流體,例如工作流體由主氣注入口21進入工作流體輸入段12後,接著進入負壓牽引段13,另外,主流體由上游反應器經由粉粒體下料口111進入主流體輸入段11,接著進入負壓牽引段13,負壓牽引段13內的工作流體會牽引主流體移動,此時,螺桿組件16及噴嘴組件15即可依據需求,調控工作流體的輸出量,最終目的是希望主流體輸入段11為零壓狀態,此可由主流體輸入段11上設置壓力測點112來進行監測。由上可知,本發明之粉粒體輸送裝置1,透過調整噴嘴組件15於負壓牽引段13中的位置以及調整螺桿組件16於噴嘴組件15中的位置,將能控制工作流體的輸出量。關於上述調整機制,後面將詳細說明。During operation, the working
第3圖為本發明之粉粒體輸送裝置之噴嘴組件和螺桿組件的結構圖。如圖所示,噴嘴組件15位於負壓牽引段13內之一端設有噴嘴150,且噴嘴150具有噴嘴開口151,以供工作流體輸出,螺桿組件16具有位於噴嘴開口151處的塞頭161,以及連接塞頭161之螺桿162,透過移動螺桿162以調整塞頭161與噴嘴開口151之截面積關係,藉以控制工作流體的輸出量。具體來說,噴嘴組件15之噴嘴開口151為固定大小,而螺桿組件16之塞頭161可依據需求而設計不同大小,例如當塞頭161越靠近噴嘴開口151時,會使得噴嘴開口151的輸出量受到塞頭161影響而變小,反之,若塞頭161遠離噴嘴開口151時,則噴嘴開口151的輸出量受塞頭161影響而變大,如此即是藉由調整塞頭161與噴嘴開口151的截面積關係,以控制工作流體的輸出量。Figure 3 is a structural diagram of the nozzle assembly and screw assembly of the powder and granular conveying device of the present invention. As shown in the figure, one end of the
另外,由圖可知,噴嘴150可於工作流體輸入段12與負壓牽引段13內前後移動,噴嘴150能前後移動的範圍為移動範圍B;又如噴嘴開口151端的細部圖可知,塞頭161可於噴嘴150內前後移動,塞頭161能前後移動的範圍為移動範圍C。In addition, it can be seen from the figure that the
另外,喉口組件14復包括連接負壓牽引段13之噴流注入漸縮段141、連接噴流注入漸縮段141之喉口段142以及連接喉口段142之流體輸出擴散段143。當負壓牽引段13中的工作流體帶動主流體輸出時,會先經過噴流注入漸縮段141,接著通過喉口段142,最後由流體輸出擴散段143送出工作流體和主流體。In addition, the
第4圖為本發明之粉粒體輸送裝置應用於移動床化學迴路系統的系統架構圖,請一併參考第3圖。如圖箭頭所示,於系統中以移動床反應器33為主體,移動床反應器33底部出料口連接粉粒體輸送裝置1,再接續氣力輸送上升管34,氣力輸送上升管34高處末端裝設旋風分離器31,最後再連結移動床反應器33而形成可循環迴路,旋風分離器31出口銜接外部集塵器32,作最終的排氣淨化處理。詳言之,由粉粒體輸送裝置1輸出的粉粒體會於氣力輸送上升管34進行粉粒體氣送循環40,當粉粒體送至旋風分離器31並經旋風分離器31進行固氣分離後,外部集塵器32會進行排氣處理,此時僅由循環粉粒體41會進入移動床反應器33,移動床反應器33為一實現氣固相反應過程的反應器,可於反應器頂部連續加入顆粒狀反應物或催化劑,隨著反應的進行,固體物料逐漸下移並由底部輸出,移動床反應器33會加入與反應物或催化劑反應之反應氣體44,並產出所需氣體(氫)42,惟移動床反應器33為本領域已知技術,這裡不再贅述,經移動床反應器33處理後,高溫粉粒體43將落入主流體輸入段11,即進入本發明所述之粉粒體輸送裝置1。Figure 4 is a system architecture diagram of the powder and granule conveying device of the present invention applied to a moving bed chemical loop system. Please refer to Figure 3 together. As shown by the arrow in the figure, in the system, the moving
本發明之粉粒體輸送裝置1舉例配合一壓縮氣源可組成一固體顆粒循環輸送系統(未圖示),粉粒體輸送裝置1的結構型態為中心噴流泵,提供工作流體的單一氣源,例如為一2.0kg/cm
2的低壓壓縮氣源,其功能一方面作為操作噴嘴性能及粉粒體輸送的風量,另一方面則是作為調控主流體輸入段11壓力的風量,兩股從同一壓縮氣源提供的風量互相搭配,且以主流體輸入段11的壓力為指標,藉以完成粉粒體輸送裝置1之粉粒體控量出料、調控氣封以及循環輸送的運作。
The powder and granular conveying
於一實施例中,搭配本發明之粉粒體輸送裝置1,使上述的固體顆粒循環輸送系統應用於一移動床化學迴路系統,除了作為範例說明本發明之運作外,並針對性能進行驗證。本發明操作程序是以一低壓型空壓機2提供流量為2.0kg/cm
2且溫度為150~160℃的壓縮氣源,此壓縮氣源可作為工作流體45,將工作流體45輸送至粉粒體輸送裝置1,並且調控工作流體45之氣體流量至可輸送主流體(粉粒體)之流量的最少操作風量或以上,於此所述之最少操作風量將配合粉粒體輸送程序中所使用管件尺寸以及輸送揚程才能得到,亦即是根據實際需求而作調整。於一實例中,固體顆粒循環輸送系統於實驗測試時,平均控制工作流體45之氣體流量為0.75LPM(liter per minute,L/min,公升/每分鐘),所輸送主流體(粉粒體)之粒徑為約2mm的金屬固體顆粒。
In one embodiment, with the powder and granular conveying
當工作流體45(經FI-003)輸入至粉粒體輸送裝置1時,工作流體45即自噴嘴組件15之噴嘴開口151以高速噴流型態噴出,並進入噴流注入漸縮段141及喉口段142,受到高速噴流的影響,負壓牽引段13將會形成負壓狀態,以牽引上游的移動床反應器33的氣體與固態粉粒體進入主流體輸入段11,於此情況下,固態粉粒體都進入負壓牽引段13,最後,藉由移動慣性,令固態粉粒體隨著高速的工作流體45噴流而往下游的噴流注入漸縮段141及喉口段142輸送。在一為編號Test1的實驗測試,此為無旁通氣流46的狀態下,受到負壓牽引段13的壓力影響,主流體輸入段11將成為負壓狀態(PG-009處),量測所得主流體輸入段壓力為-335mmAq,而粉粒體的循環流量約為4.7kg/min,如以下表一所示。
When the working fluid 45 (via FI-003) is input to the powder and granular conveying
然為了達到本發明上下游氣體隔離之目的,可自負壓牽引段13的旁通氣源輸入孔130引入用於粉粒體出料控量之旁通氣流46(由FI-006處),隨旁通氣流46的增大調控,主流體輸入段11的負壓值逐漸變小(壓力增大),直到主流體輸入段11調控到零壓為止,此時為氣體隔絕功能的操作點。在一編號Test2的實驗測試中,將旁通氣流46的流量調整為0.09LPM,則部分主流體輸入段11的壓力則能達到零壓狀態,而固體顆粒的循環流量約為6.1kg/min,如以下表一所示。
However, in order to achieve the purpose of the upstream and downstream gas isolation of the present invention, the bypass gas flow 46 (from FI-006) for powder and granular discharge control can be introduced from the bypass gas
旁通氣流46的功能在於不管粉粒體輸送裝置1上游所連接的移動床反應器33其內部存在正壓或負壓的操作壓力,皆可藉由主動輸入旁通氣流46以調控主流體輸入段11的壓力至零壓,亦即,粉粒體輸送裝置1上游連接的固氣並存的移動床反應器33不會有反應氣體向下游竄入至粉粒體輸送裝置1中,而粉粒體輸送裝置1的氣送氣流(工作流體45)也不會向上游灌入反應器中,如此即可達到上下游元件之間氣體隔絕的氣封目的。
The function of the
如下表一所示,編號Test2的實驗測試結果中,由於旁通氣流46的擾動可令主流體輸入段11壓力為零壓,且旁通氣流46亦可提升固體顆粒的循環流量,因而本發明透過調整噴嘴組件15以優化粉粒體循環效果下,粉粒體的循環流量相較無旁通氣流46的編號Test1的實驗測試結果提升了30%。
As shown in Table 1 below, in the experimental test result numbered Test2, the disturbance of the
另外,粉粒體輸送裝置1能持續以固定操作風量輸送主流體(粉粒體),但為了維持主流體輸入段11的零壓狀態,旁通氣源輸入孔130引入旁通氣流46勢必影響負壓牽引段13的負壓值,在工作流體45之氣體流量不變的情況下,便需要透過本發明所述之噴嘴組件15來調整噴嘴氣體流量狀態,藉以優化主流體(粉粒體)的輸送效果。相關調控參數如以下表二所示,透過噴嘴主氣(工作流體45)送風、噴嘴注入位置、噴嘴流速、旁通氣流46的調整,將能改變粉粒體輸出量,且能基於需求即時地線上調控。
由上可知,本發明主要是令粉粒體輸送裝置1上游的移動床反應器33的氣體與下游的粉粒體輸送裝置1中的工作流體45產生氣體隔離,藉此避免上下游元件有氣體混合之問題,且透過噴嘴組件15與螺桿組件16之設計,可調整工作流體45之輸出量,除了能提供零壓狀態之調整外,也能優化粉粒體輸送效果。It can be seen from the above that the present invention mainly isolates the gas in the moving
第5圖為本發明之粉粒體輸送裝置即時監控的系統示意圖。本發明利用旁通氣流46的加入,藉以達到主流體輸入段為零壓之需求,且噴嘴組件與螺桿組件之利用也能調整工作流體45之輸出量,換言之,若知悉系統內特定位置之壓力,將能得到目前整個固體顆粒循環輸送系統是否符合運作須求,故本實施例即配合多個壓力偵測器,透過量測多處壓力以判斷固體顆粒循環輸送系統是否符合需求地運作。Figure 5 is a schematic diagram of a system for real-time monitoring of the powder and granular conveying device of the present invention. The present invention utilizes the addition of the
如第5圖同時配合第3圖所示,調控伺服器4能接收來自主流體輸入段11、負壓牽引段13及喉口組件14所分別設置之壓力感測器(PG009, PG008, PG010)所感測之壓力,當調控伺服器4判斷供氣量須調整時,例如主流體輸入段11為非零壓狀態,或是喉口組件14送出的工作流體45和主流體兩者混合下,壓力無法達到整個固體顆粒循環輸送系統後續處理需求時,則調控伺服器4可線上即時控制噴嘴組件15、螺桿組件16或是低壓型空壓機2以進行氣體輸出量調整,例如控制噴嘴組件15之噴嘴位置或是螺桿組件16之塞頭161位置,進而控制工作流體45之輸出量,又或是直接調控低壓型空壓機2以調整輸出的工作流體45流量,進而使整個固體顆粒循環輸送系統符合運作須求。因此本發明提出可線上調整粉粒體輸送裝置輸送效果,藉以即時維持粉粒體輸送裝置對於主流體的輸送效率。As shown in Fig. 5 and in conjunction with Fig. 3, the
綜上所述,本發明提出一種粉粒體輸送裝置,係一種噴嘴面積與位置可調、具氣封效果並適用於高溫粉粒體之輸送裝置,由一壓縮氣源輸入工作流體到負壓牽引段,主流體則由主流體輸入段輸送,最後由喉口組件輸出,特別是,粉粒體輸送裝置旁設有旁通氣源輸入孔,透過旁通氣流的加入,可調整主流體輸入段的壓力為零壓,進而達到上下游元件氣體隔離之目的,另外,透過噴嘴組件與螺桿組件可調整工作流體輸出量,可優化固態粉粒體之輸送效果,再者,透過監控各點壓力狀態,並提供線上調整壓縮氣源輸出量、噴嘴組件之噴嘴以及螺桿組件之螺桿位置,藉此達到即時調控之目的。In summary, the present invention proposes a powder and granular conveying device, which is a conveying device with adjustable nozzle area and position, air-sealing effect, and suitable for high-temperature powder and granular. A compressed air source inputs working fluid to negative pressure. In the traction section, the main fluid is transported by the main fluid input section, and finally output by the throat assembly. In particular, there is a bypass air source input hole beside the powder and granular conveying device, and the main fluid input section can be adjusted through the addition of bypass airflow. The pressure is zero pressure to achieve the purpose of gas isolation between upstream and downstream components. In addition, the output of the working fluid can be adjusted through the nozzle assembly and the screw assembly, which can optimize the conveying effect of solid powders and particles. Furthermore, by monitoring the pressure status of each point , And provide online adjustment of the compressed air source output, the nozzle of the nozzle assembly and the screw position of the screw assembly, so as to achieve the purpose of real-time control.
雖然本發明已以實施例揭露如上,然其並非用以限定本發明,任何所屬技術領域中具有通常知識者,在不脫離本發明的精神和範圍內,當可作些許的更動與潤飾,故本發明的保護範圍當視後附的申請專利範圍所界定者為準。Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field can make slight changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention shall be subject to those defined by the attached patent scope.
1:粉粒體輸送裝置1: Powder conveying device
11:主流體輸入段11: Main fluid input section
110:旁通氣源輸入孔110: Bypass air source input hole
111:粉粒體下料口111: Powder and granular material discharge port
112:壓力測點112: Pressure measuring point
12:工作流體輸入段12: Working fluid input section
13:負壓牽引段13: Negative pressure traction section
130:旁通氣源輸入孔130: Bypass air source input hole
14:喉口組件14: Throat assembly
141:噴流注入漸縮段141: Jet into the tapered section
142:喉口段142: Throat
143:流體輸出擴散段143: fluid output diffusion section
15:噴嘴組件15: nozzle assembly
150:噴嘴150: nozzle
151:噴嘴開口151: Nozzle opening
16:螺桿組件16: screw assembly
161:塞頭161: Stop
162:螺桿162: Screw
2:低壓型空壓機2: Low-pressure air compressor
21:主氣注入口21: Main gas injection port
31:旋風分離器31: Cyclone
32:外部集塵器32: External dust collector
33:移動床反應器33: moving bed reactor
34:氣力輸送上升管34: Pneumatic conveying rising pipe
4:調控伺服器4: Control the server
40:粉粒體氣送循環40: Powder and granular air circulation
41:循環粉粒體41: Circulating particles
42:氣體42: Gas
43:高溫粉粒體43: high temperature powder
44:反應氣體44: Reactive gas
45:工作流體45: working fluid
46:旁通氣流46: Bypass airflow
B、C:移動範圍B, C: moving range
第1圖為本發明之粉粒體輸送裝置的結構圖。 第2圖為本發明之粉粒體輸送裝置另一實施例的結構圖。 第3圖為本發明之粉粒體輸送裝置之噴嘴組件和螺桿組件的結構圖。 第4圖為本發明之粉粒體輸送裝置應用於移動床化學迴路系統的系統架構圖。 第5圖為本發明之粉粒體輸送裝置即時監控的系統示意圖。 Figure 1 is a structural diagram of the powder or granular conveying device of the present invention. Figure 2 is a structural diagram of another embodiment of the powder and granular material conveying device of the present invention. Figure 3 is a structural diagram of the nozzle assembly and screw assembly of the powder and granular conveying device of the present invention. Figure 4 is a system architecture diagram of the powder and granular material conveying device of the present invention applied to a moving bed chemical circuit system. Figure 5 is a schematic diagram of a system for real-time monitoring of the powder and granular conveying device of the present invention.
1:粉粒體輸送裝置 1: Powder conveying device
11:主流體輸入段 11: Main fluid input section
110:旁通氣源輸入孔 110: Bypass air source input hole
12:工作流體輸入段 12: Working fluid input section
13:負壓牽引段 13: Negative pressure traction section
130:旁通氣源輸入孔 130: Bypass air source input hole
14:喉口組件 14: Throat assembly
Claims (8)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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TW108141689A TWI698387B (en) | 2019-11-15 | 2019-11-15 | Powder and granule transport device |
CN201911251641.3A CN112811185B (en) | 2019-11-15 | 2019-12-09 | Powder conveying device |
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TW108141689A TWI698387B (en) | 2019-11-15 | 2019-11-15 | Powder and granule transport device |
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CN114148759B (en) * | 2021-12-30 | 2024-03-15 | 南京翔瑞智能装备技术有限公司 | Gas-powder conveying device without returning charge |
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CN204310505U (en) * | 2014-12-11 | 2015-05-06 | 潍坊天晟电子科技有限公司 | Adjustable strength eductor |
CN104619621A (en) * | 2012-09-28 | 2015-05-13 | 三菱重工业株式会社 | Powder conveyance device and char collection device |
TW201718378A (en) * | 2015-11-23 | 2017-06-01 | 財團法人工業技術研究院 | Device for transportation of powder |
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US6974279B2 (en) * | 2003-10-07 | 2005-12-13 | Trinity Inudstrial Corporation | Ejector, fine solid piece recovery apparatus and fluid conveyor |
CN201028575Y (en) * | 2007-01-05 | 2008-02-27 | 北京科技大学 | Low-pressure coal powder feeder with adjustable powder supply amount |
CN104512728A (en) * | 2013-09-30 | 2015-04-15 | 宁夏嘉翔自控技术有限公司 | Pneumatic-transmission gas-solid mixing room for flour |
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CN104619621A (en) * | 2012-09-28 | 2015-05-13 | 三菱重工业株式会社 | Powder conveyance device and char collection device |
CN204310505U (en) * | 2014-12-11 | 2015-05-06 | 潍坊天晟电子科技有限公司 | Adjustable strength eductor |
TW201718378A (en) * | 2015-11-23 | 2017-06-01 | 財團法人工業技術研究院 | Device for transportation of powder |
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