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錯誤 !未定義書簽。 泵到分支處的壓力損失 錯誤 !未定義書簽。 分支處的壓力損失 錯誤 !未定義書簽。 分支后的管路壓力損失 錯誤 !未定義書簽。 噴頭下部連接管 的壓力損失 錯誤 !未定義書簽。 錯誤 !未定義書簽。 噴頭內(nèi)部壓力計算 錯誤 !未定義書簽。 噴頭 參數(shù)計算 錯誤 !未定義書簽。 泵的 參數(shù)確定 18 噴箱 參數(shù)確定 19 洗滌液箱體 參數(shù)確定 19 4 機(jī)器特點和注意事項 20 5 結(jié)論 錯誤 !未定義書簽。 參考文獻(xiàn) 錯誤 !未定義書簽。 致謝 錯誤 !未定義書簽。 東北大學(xué)繼續(xù)教育學(xué)院(自考)畢業(yè)設(shè)計論文 1 摘要 實驗用細(xì)頸瓶是指那些在實驗中使用的、瓶口相對較 小的玻璃瓶,如在化學(xué)實驗中經(jīng)常用到的容量瓶、錐形瓶等。這類瓶很不容易清洗,不但增加了實驗者的工作強(qiáng)度,而且降低了工作效率。因此,研制一種清洗這類瓶的清洗機(jī)具有十分重要的意義。 本實驗用細(xì)頸瓶清洗機(jī)的設(shè)計在考慮到方便、實用的基礎(chǔ)之上,對該類瓶的清洗方法以及清洗流程等各個方面進(jìn)行了分析、總結(jié),完成了對該機(jī)的清洗方法的選擇、清洗流程的確定、總體布局的設(shè)計 :本設(shè)計運用 SolidWork 軟件完成了對本機(jī)的總體設(shè)計 。通過分析現(xiàn)有噴頭的優(yōu)缺點,設(shè)計了錐形螺旋縫隙式噴頭 ,并用 Excel 分析設(shè)計了噴頭的螺旋傾角 。通過計算總體 壓力損失完成了對泵體的選擇;根據(jù)瓶體的大小和數(shù)量確定了噴箱和洗滌液箱的尺寸參數(shù)。 該機(jī) 沖洗效果好,使用方便,節(jié)省了沖洗時間,降低了勞動強(qiáng)度,并且將洗滌液回收循環(huán)利用,節(jié)約了洗滌液資源,做到了環(huán)保。不但可以在各個高?;瘜W(xué)實驗室和生物實驗室廣泛應(yīng)用,還可以應(yīng)用到醫(yī)學(xué)實驗以及其他化工廠的實驗中。 關(guān)鍵詞: 實驗;細(xì)頸瓶;清洗機(jī) 東北大學(xué)繼續(xù)教育學(xué)院(自考)畢業(yè)設(shè)計論文 2 Abstract The experimental narrow mouth flasks refers to the glass bottles used in chemistry experiment that have relatively smaller mouth, such as volumetric flask and taper flask, etc. This kind of bottle is difficult to clean. The cleaning of the bottle is not only increasing the working strength, but also reducing the working efficiency. Therefore, developing a cleaning machine for the bottles is extremely significant. This experimental flask cleaner’s design has been carried out on the analysis and summary to this kind of bottle’s cleaning method as well as the cleaning procedure. The design plan, the cleaning method, the cleaning procedure, and the overall layout has been determined considering not only convenient, but also practical .The overall design has pleted with SolidWork software. By analyzing the existing spaying nozzle, a helix slot cone spraying nozzle was designed, the spiral inclination angle of the nozzle was analyzed with Excel。 based on putation on pressure loss, the pump was selected。 the cleaning box and detergent box were designed according to the size and number of bottles. The machine’s washing effect is good, and it is easy to operate, meantime, it reduces the labor intensity. It can recycle the washing solution, save the detergent resources, protect the environmental. It can be used not only in each university chemical laboratory and the biological labora