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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
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dc.contributor.advisor | 朱元南(Yuan-Nan Chu) | |
dc.contributor.author | Meng-Tsung Kuo | en |
dc.contributor.author | 郭孟璁 | zh_TW |
dc.date.accessioned | 2021-06-08T01:40:42Z | - |
dc.date.copyright | 2020-08-24 | |
dc.date.issued | 2020 | |
dc.date.submitted | 2020-08-18 | |
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dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/18955 | - |
dc.description.abstract | 水產養殖不可不考慮淤泥問題。淤泥一旦被微生物分解,就可能釋出氨氮或硫化氫等有毒物質,威脅魚蝦生存。本實驗室過去已發展出高效能的清淤機,在移動區域內可清除淤泥達99 %以上,然其驅動馬達是安裝於水面上,易受水分侵入而毀損;其傳動鏈條過長,易導致鬆動而有脫鏈的風險;其在啟動前必須先排水,兩段式的操作難以自動化。因此,本研究先針對清淤機傳動系統提出兩種改良方案,第一種利用防水外管包覆原有的齒輪減速馬達,將驅動馬達轉移至水下,可大幅減少傳動鏈長度。第二種為參考戽斗式水輪機之構造並研製的水輪動力系統,利用泵浦水流沖擊葉輪產生迴轉動能,並設計減速比為32的齒輪箱,放大扭力而帶動驅動輪旋轉。經過水下測試,在僅連接一個清淤模組的情形下,戽斗式水輪動力系統之驅動輪扭力為1.98 N-m,未達預期的扭力需求,而馬達防水外管之驅動輪扭力為大於5.4 N-m,在水下測試運轉為期約一個月,測試期間皆能穩定運轉且不進水,目前已安裝在高雄業者之養殖池使用中。本研究並研發物聯網監控系統,以NodeMCU開發板製作監控器,以Node-RED視覺化工具設計操作介面。管理者可採自動或半自動的操作模式,由遠端控制清淤機,使其既可執行自動化清淤的功能,又可適時藉啟動清淤機提供淤泥組成的資訊,進而使清淤機成為智慧型養殖監控系統的一環。 | zh_TW |
dc.description.abstract | The problem of sludge is important in aquaculture. Once the sludge is decomposed by microorganisms, it may release toxic substances such as ammonia-nitrogen or hydrogen sulfide which could threaten the survival of fish and shrimp. Our laboratory in the past has developed a high-efficiency sludge removing prototype which is capable of removing more than 99% of the sludge in its pass, but it still have some disadvantages that need improvement. First, since the prototype’s motor is installed above the water surface, it could be easily damaged by water in poor weather conditions or in flood. Second, since the prototype’s power transmission line is quite long, the power transferring chain could fall off the socket and get damaged especially under heavy load. Third, with a two-step procedure to operate, automation is hard to achieve. In this research, two solutions were designed and implemented to improve the power problem. Firstly, gear reducer motor was placed in a watertight tube and moved to just on top of the driving wheel, dramatically reducing the length of the power transferring chain. Secondly, a Pelton turbine was designed along with a corrosion resistant gearbox with a reduction ratio of 32 to serve as an alternative to the watertight motor above. The power source of the Pelton turbine was the pressurized water from a submerged pump on the sludge removing system. The two types of underwater power were tested with one sludge removing module installed. The results show that the torque from the Pelton turbine was only 1.98 N-m, not enough to drive the sludge removing system. On the other hand, the watertight motor was able to exert a torque higher than 5.4 N-m, suitable for the system, which then underwent an underwater test for about one month. The result showed that it could operate stably without water leakage. The entire sludge removing system including the new watertight underwater motor is later installed in a pond in Kaohsiung and is in use now. Furthermore, a controlling system based on Internet of Things was developed. The controller is a hardware using NodeMCU. Node-RED is used to design the user interface. The manager can control the sludge removing system by automatic or semi-automatic operation modes, so that it could not only feature the function of automatic dredging, but also provide timely information on the composition of sediments, which could make the sludge removing system become a part of the intelligent aquaculture monitoring system. | en |
dc.description.provenance | Made available in DSpace on 2021-06-08T01:40:42Z (GMT). No. of bitstreams: 1 U0001-1808202001094600.pdf: 5506305 bytes, checksum: c00cd20fccacb3f947c43bd70e17d984 (MD5) Previous issue date: 2020 | en |
dc.description.tableofcontents | 誌謝 i 摘要 ii Abstract iii 目錄 v 圖目錄 viii 表目錄 xii 第一章 前言 1 第二章 文獻探討 2 2.1 底泥的來源及組成 2 2.2 水車對底泥分佈的影響 3 2.3 底泥排除的設備探討 4 2.4 常見的水下動力機械 5 2.5 戽斗式水輪機的機構探討 5 2.6 物聯網於水產養殖的應用 6 第三章 材料與方法 8 3.1 問題分析與策略 8 3.1.1 清淤機結構之問題 8 3.1.2 清淤機操作之問題 9 3.1.3 清淤機改良策略 9 3.2 防水馬達之設計 11 3.2.1 防水外殼 11 3.2.2 防水效果測試 16 3.2.3 傳動鏈輪組 17 3.2.4 動力結構整合 19 3.3 戽斗式水輪機之設計 20 3.3.1 海水用軸流式水泵 20 3.3.2 水輪機之力學模式推導 21 3.3.3 水輪機之設計公式推導 22 3.3.4 葉輪參數之求取與實作 26 3.3.5 水輪系統機殼 29 3.3.6 齒輪箱之機構設計 30 3.3.7 傳動鏈輪組 34 3.3.8 動力結構整合 35 3.4 物聯網監控系統架構 36 3.4.1 研究規劃及流程圖 36 3.4.2 硬體設備規劃 38 3.4.3 軟體開發環境 44 3.4.4 全系統硬軟體整合 54 3.5 清淤系統與一般排水排污之效能試驗 55 第四章 結果與討論 57 4.1 水下動力系統試驗 57 4.1.1 驅動輪的輸出扭矩量測 57 4.1.2 水輪系統進水口及模組噴頭的流量試驗 59 4.2 水下動力方案的優劣分析 62 4.3 馬達防水外管的內部溫度量測 63 4.4 戶外養殖池的動力運轉試驗 64 4.5 清淤系統的商品化藍圖 66 4.6 物聯網應用於清淤系統的使用探討 67 4.6.1 監控系統展示與問題排除 67 4.6.2 清淤系統與一般排水排污的效能試驗結果 70 4.6.3 清淤系統作為智慧型養殖管理元件的價值 72 第五章 結論與未來展望 73 符號說明 74 參考文獻 75 附錄 78 | |
dc.language.iso | zh-TW | |
dc.title | 智慧型養殖池清淤系統之研發 | zh_TW |
dc.title | Development of a smart aquaculture pond sediment removing system | en |
dc.type | Thesis | |
dc.date.schoolyear | 108-2 | |
dc.description.degree | 碩士 | |
dc.contributor.author-orcid | 0000-0003-2487-4071 | |
dc.contributor.oralexamcommittee | 葉仲基(Chung-Kee Yeh),劉擎華(Chyng-Hwa Liou) | |
dc.subject.keyword | 淤泥,戽斗式水輪機,齒輪箱,物聯網,NodeMCU,Node-RED, | zh_TW |
dc.subject.keyword | sludge,Pelton turbine,gearbox,IoT,NodeMCU,Node-RED, | en |
dc.relation.page | 84 | |
dc.identifier.doi | 10.6342/NTU202003897 | |
dc.rights.note | 未授權 | |
dc.date.accepted | 2020-08-19 | |
dc.contributor.author-college | 生物資源暨農學院 | zh_TW |
dc.contributor.author-dept | 生物機電工程學系 | zh_TW |
顯示於系所單位: | 生物機電工程學系 |
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