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湘潭大學(xué)興湘學(xué)院畢業(yè)論文
目 錄
摘要………………………………………………………………………1
第一章 前言…………………………………………………………3
1.1 背景………………………………………………………3
1.1.1選題的依據(jù)及研究意義………………………………3
1.1.2國內(nèi)外洗碗機(jī)發(fā)展與現(xiàn)狀……………………………3
1.2? 國內(nèi)市場上洗碗機(jī)的分析………………………………4
1.2.1國內(nèi)市場上洗碗機(jī)的特點(diǎn)與不足……………………4
第二章 總體方案…………………………………………………6
2.1? 設(shè)計(jì)要求…………………………………………………6
2.2 整體方案設(shè)計(jì)…………………………………………… 6
2.3 本章小結(jié)…………………………………………………7
第三章 超聲波清洗原理…………………………………………8
3.1? 超聲波清洗技術(shù)簡介……………………………………8
3.2 超聲清洗機(jī)理……………………………………………8
3.2.1 超聲空化作用…………………………………………8
3.3?超聲空化閥 ……………………………………………9
第四章 超聲清洗參數(shù)選定……………………………………… 10
4.1? 影響超聲波清洗效果的因素……………………………10
4.1.1?聲強(qiáng)………………………………………………… 10
4.1.2?頻率………………………………………………… 10
4.1.3?清洗液……………………………………………… 11
4.2? 超聲場的研究………………………………………………11 ?
4.2.1?空化強(qiáng)度的測量……………………………………11
4.3? 選取參數(shù)………………………………………………… 11?
4.3.1?超聲清洗參數(shù)……………………………………… 11
4.4 本章小結(jié)…………………………………………………11
第五章 超聲波洗碗機(jī)結(jié)構(gòu)設(shè)計(jì)………………………………… 13
5.1? 整體方案設(shè)計(jì)……………………………………………13
?5.2? 各重要部件設(shè)計(jì)…………………………………………13
5.2.1?清洗槽……………………………………………… 13
5.2.2?進(jìn)排水系統(tǒng)………………………………………… 13
5.2.3?水位感應(yīng)系統(tǒng)……………………………………… 13
5.2.4 噴臂系統(tǒng)…………………………………………… 14
5.2.5?超聲波發(fā)生器………………………………………15
5.2.6?超聲波換能器………………………………………16
5.2.7 加熱系統(tǒng)……………………………………………17
5.3 本章小結(jié)……………………………………………… 18
第六章 控制系統(tǒng)…………………………………………………19
6.1 控制邏輯…………………………………………………19
6.2 處理器選擇………………………………………………19
第七章 總 結(jié)……………………………………………………21
致 謝………………………………………………………… 22
參考文獻(xiàn)………………………………………………………… 23
附錄……………………………………………………………… 24
摘 要
隨著中國人生活水平的提高和生活節(jié)奏的加快,市場上出現(xiàn)了更多的適合于現(xiàn)代家庭生活的新型家用電器。這些電器都具有高效、節(jié)能和環(huán)保的特點(diǎn)。中國目前的家用電器產(chǎn)業(yè)發(fā)展很快,出現(xiàn)了海爾、TCL等國際企業(yè),在一些方面也達(dá)到了國際頂尖水平。在家用電器里,彩電和洗衣機(jī)的普及率比較高,然而家用洗碗機(jī)卻一直是一個(gè)未開發(fā)但擁有極大潛力的領(lǐng)域。究其原因,是因?yàn)閭鹘y(tǒng)的洗碗機(jī)僅采用噴臂式?jīng)_洗的清洗結(jié)構(gòu),不適合中國深度大的碗、盆等餐具的清洗,導(dǎo)致清洗效果差、效率低,耗能大,所以并不受歡迎。根據(jù)這些問題,提出將超聲波的清洗功能利用在這個(gè)領(lǐng)域,設(shè)計(jì)出高效節(jié)能的新型洗碗機(jī)。根據(jù)超聲波清洗的特點(diǎn)和餐具清洗的工藝,在洗碗機(jī)整體結(jié)構(gòu)、清洗工藝和控制系統(tǒng)三個(gè)方面進(jìn)行改良設(shè)計(jì)。結(jié)構(gòu)方面,采用不銹鋼清洗槽,合理布置超聲波系統(tǒng),噴臂沖水裝置和進(jìn)排水裝置等,使結(jié)構(gòu)更加緊湊合理,提升清洗效果。清洗工藝方面,根據(jù)鋁錫箔腐蝕法所得的結(jié)果,分析洗滌槽內(nèi)超聲波空化強(qiáng)度的分布,選擇合適的參數(shù),確定最優(yōu)的清洗流程??刂葡到y(tǒng)方面,選取合適的PLC,以各個(gè)部分作用的時(shí)間先后為邏輯順序,實(shí)現(xiàn)清洗過程的自動(dòng)化。?
關(guān)鍵詞:超聲波;洗碗機(jī);結(jié)構(gòu)設(shè)計(jì);PLC
Abstract
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? With?the?improvement?of?people's?living?standards?and?the?acceleration?of?modern?life?speed,?new?household?electrical?equipment?which?are?more?adaptable?to?the?modern?family?life?are?required?to?meet?customers’?need.?These?appliances?are?more?efficient,?energy-saving?and?environmentally-friendly.?The?household?appliances?industry?in?China?has?being?developing?rapidly.?And?there?appear?some?international?corporations?such?as?Haier,?TCL?etc.?Furthermore,?we?have?reached?in?top?level?in?some?technical?fields.?Among?household?appliances,?the?penetration?rate?of?color?TV?and?washing?machine?are?relatively?higher,?the?household?dishwasher,?however,?is?an?undeveloped?but?great?potential?field.?The?reason?is?because?the?traditional?dishwasher’s?flush?cleaning?system?and?spray?arm?structure?are?not?applicable?to?the?Chinese?tableware?such?as?deep?bowls,?deep?pots?etc.?It?was?generally?regarded?as?“bad?cleaning?effect,?low?efficiency?and?high?energy?consumption”,?so?it?was?not?popular.?Now,?I?try?to?takes?advantage?of?the?cleaning?feature?of?ultrasonic?to?solve?these?problems?by?designing?a?new?efficient?dishwasher.?According?to?the?characteristics?of?ultrasonic?cleaning?and?dishwashing’s?process,?I?have?improved?and?redesigned?the?overall?structure?of?the?dishwasher,?the?cleaning?process?and?control?system.?The?structure:?the?cleaning?tank?is?made?of?stainless?steel.?The?dishwasher?consists?of?reasonable?layout?of?the?ultrasound?system,?the?spray?arm?flush?device?and?the?plumbing?system,?so?that?the?structure?is?more?compact?and?reasonable,?to?improve?the?cleaning?effect.?Cleaning?process:?according?to?the?academic?result?of?corrosion?of?the?aluminum?foil?research,?figuring?out?the?distribution?of?ultrasonic?cavitations’?intensity?and?selecting?appropriate?parameters?to?determine?the?optimal?cleaning?process.?Control?system:?selecting?the?appropriate?SCM(Single?Chip?Microcomputer)and?basing?logical?order?on?the?running?order?of?each?part?to?makecleaning?process?automatic.?
Key?words:?ultrasonic;?dishwasher;?structure?design;?SCM(Single?Chip?Microcomputer)
第一章 緒論
1.1 背景
1.1.1選題的依據(jù)及研究意義
洗碗是一項(xiàng)必不可少的家務(wù)活動(dòng),然而過多的油漬讓人對洗碗很是厭煩,洗碗機(jī)的出現(xiàn)將會使這項(xiàng)家務(wù)活動(dòng)變得簡單而有趣。有一點(diǎn)值得注意的是,普通洗碗機(jī)需要加入大量的洗滌劑才能達(dá)到洗滌干凈的要求,浪費(fèi)大量水資源且對環(huán)境構(gòu)成污染。