【正文】
孔系數(shù),取 φ - 焊縫系數(shù),雙面焊取 [σ ] -設(shè)計溫度下的許用應(yīng)力( 16MnR 鋼焊接壓力容器許用應(yīng)力為 150℃,200M3產(chǎn)潔霉素機械攪拌生物反應(yīng)器設(shè)計 6 170MPa) 攪拌器 采用渦輪式攪拌器,選擇攪拌器種類 和攪拌器層數(shù),根據(jù) d確定 h和 b的值 尺寸:六平葉渦輪式攪拌器已標(biāo)準(zhǔn)化, 稱為標(biāo)準(zhǔn)型攪 拌器;攪動液體的循環(huán) 量大,攪拌功率消耗也大;根據(jù) 4:5:15:20::: ?BLdD ii 攪拌器葉徑i為 mDi ??? 葉寬 B為 mDB i ??? 盤徑id為 mmDd ii ??? 葉弧長 L為 mmDL i ??? 底距 C mDC ?? 人孔和視鏡 人孔的設(shè)置是為了安裝、拆卸、清洗和檢修設(shè)備內(nèi)部的裝置。發(fā)酵罐裝料液體積: V1 = 3m 物料體積流量? ? smhVQ /????, 則排料管截面積???, a r彎 =(1 /2) d r 箭= (1/ 4)d 10a= 38e : h : b :d1:d=3:3. 5 : 5 : 1 3 : 20h : b : d : d = 4 :5 .5 :13 :2 0h : b : d : d = 4 : 5 : 13 : 2 0圖61 通 用的渦輪式攪拌器 a六 平葉 b六 彎葉 c六 箭葉hrhbbbdd1d1dd1d200M3產(chǎn)潔霉素機械攪拌生物反應(yīng)器設(shè)計 7 又 ? ,得 d=,取無縫鋼管,查閱資料,平焊鋼管法蘭 HG2059397,取公稱直徑 100,??。 裝液量 設(shè)計發(fā)酵罐裝料系數(shù):取 75% 發(fā)酵罐裝料液體積: 31 %75215 mV ????? 裝料系數(shù)全體積 不計算下封頭時的裝液體積: VV??1柱 下 封 頭 體 積 31 mV ???? 下封頭體積柱 裝液高度:? ? ? ? mDVh ???? ?柱 單位時間傳熱量=發(fā)酵熱裝料量 即:hKJV / 641 ??????發(fā) 視鏡 2個,標(biāo)準(zhǔn)號HGJ5018617 根據(jù)參考文獻(xiàn) [3]選取 進(jìn)、排料口直徑 ??mm 根據(jù)參考文獻(xiàn) [3]選取 進(jìn)、出氣口直徑 . 根據(jù)參考文獻(xiàn) [3]選取 冷卻水進(jìn)、出口直徑 ??mm 由工藝條件確定 補料口直徑 . 根據(jù)參考文獻(xiàn) [3]選取 取樣口直徑 ??mm 由工藝條件確定 溫度計 裝配式熱電阻溫度傳感器Pt100型, D= 100mm 壓力表 250YZ? 液位計 61R? 溶氧探頭 SE N DO F? ? ? pH探頭 2PHS? 型 200M3產(chǎn)潔霉素機械攪拌生物反應(yīng)器設(shè)計 9 冷卻水耗量 由實際情況選用進(jìn)出口水溫為 20℃ 、 27℃,則 ? ? ? ? ? ?hkgttC QW / 5612 ???? ???? Q-單位時間傳熱量 Cp-冷卻水的平均比熱,取 kJ/ (kg 通氣攪拌功率 Pg 的計算 因為是非牛頓流體,所以用以下公式計算 g )mPDPC Q?? ( C-系數(shù), /3iDD? 時,取 mP - 多層攪拌輸入的功率( kW) ω-渦輪轉(zhuǎn)速( r/min),取 142r/min iD -渦輪直徑( m), Q-通氣量( 3m /min), ????Q 計算 kwQ wDPCP img 32 ????????? ???????????? 電機及變速裝置選用 根據(jù)攪拌功率選用電動機時,應(yīng)考慮傳動裝置的機械效率。 通過這次設(shè)計,我學(xué)會怎么設(shè)計機械通風(fēng)反應(yīng)器,并學(xué)會一些基本的設(shè)計的步驟,以及認(rèn)真的態(tài)度。在這里要感謝的指導(dǎo),同學(xué)的幫助。盡管如此,我想我們的設(shè)計中仍會不可避免地出項一些疏漏,限于所學(xué)知識及實踐能力的缺乏,或許我們現(xiàn)在還無法覺察,所以相信老師在看了我們小組的設(shè)計之后,定會給我們一些建Y 葉距 m mRe 雷諾數(shù) n 轉(zhuǎn)速 r/min 或 r/s pN 攪拌功率準(zhǔn)數(shù) iP 軸功率 kW 電P 電機功率 kW pC 冷卻水比熱容 KkgkJ ?/ 總A 冷卻管總截積 2m W 冷卻水體積流量 sm/3 ? 壁厚 cm P 壓力 MPa c 壁厚附加量 mm ? 焊縫系數(shù) 200M3產(chǎn)潔霉素機械攪拌生物反應(yīng)器設(shè)計 14 議,以便我們更加了解發(fā)酵罐的設(shè)計。t appealed against the disciplinary action your employer has taken against you. However, if you win your case, the tribunal may reduce any pensation awarded to you as a result of your failure to appeal. Remember that in most cases you must make an application to an employment tribunal within three months of the date when the event you are plaining about happened. If your application is received after this time limit, the tribunal will not usually accept i. If you are worried about how the time limits apply to you If you are being represented by a solicitor at the tribunal, they may ask you to sign an agreement where you pay their fee out of your pensation if you win the case. This is known as a damagesbased agreement. In England and Wales, your solicitor can39。s Premier League match at Chelsea on Sunday. I am going to be at the match tomorrow and I have asked to meet Ya ya Toure, he told BBC Sport. For me it39。s actions. CSKA said they were surprised and disappointed by Toure39??傆X得自己似乎應(yīng)該去做點什么,或者寫點什 么。t really grow up, it seems is not so important。 instead of letting the world soften us, we let it drive us deeper into ourselves. We try to deflect the hurt and pain by pretending it doesn’t exist, but although we can try this all we want, in the end, we can’t hide from ourselves. We need to learn to open our hearts to the potentials of life and let the world soften ,我們常常會關(guān)上心門;世界不僅沒能慰藉我們,反倒使我們更加消沉。 Whenever a painful situation arises in your life, try to embrace it instead of running away or trying to mask the hurt. When the sadness strikes, take a deep breath and lean into it. When we run away from sadness that’s unfolding in our lives, it gets stronger and more real. We take an emotion that’s fleeting and make it a solid event, instead of something that passes through ,別再逃跑或隱藏痛苦,試著擁抱它吧;當(dāng)悲傷來襲時,試著深呼吸,然后直面