高效過(guò)濾材料性能研究


頁(yè)數(shù)：72 字?jǐn)?shù)：19957


摘 要
隨著科學(xué)技術(shù)的不斷發(fā)展，現(xiàn)代工業(yè)產(chǎn)品的生產(chǎn)和現(xiàn)代化科學(xué)實(shí)驗(yàn)活動(dòng)對(duì)室內(nèi)空氣潔凈度的要求越來(lái)越高，高效過(guò)濾材料的應(yīng)用是越來(lái)越廣泛，發(fā)揮著越來(lái)越重要的作用。
本文在利用現(xiàn)有實(shí)驗(yàn)裝置的基礎(chǔ)上對(duì)杭州濾紙、聚丙烯濾紙以及玻纖濾紙等10種濾紙的阻力性能和過(guò)濾性能進(jìn)行測(cè)試和研究，并對(duì)三類(lèi)濾紙的機(jī)械性能進(jìn)行了測(cè)試和分析。在實(shí)驗(yàn)室無(wú)法進(jìn)行濾紙的分粒級(jí)效率測(cè)試的情況下，參考了國(guó)外同類(lèi)裝置后，設(shè)計(jì)加工了分粒級(jí)效率檢測(cè)裝置，提出了實(shí)驗(yàn)方案，進(jìn)行了濾紙的分粒級(jí)效率的測(cè)試。
實(shí)驗(yàn)結(jié)果表明，在測(cè)試風(fēng)速范圍內(nèi)，隨著風(fēng)速的增大，濾紙的阻力線(xiàn)性增長(zhǎng)，過(guò)濾效率越高的濾紙隨著流量的增加，阻力增長(zhǎng)越快。從穿透率曲線(xiàn)可以得出，在測(cè)試條件下，杭州濾紙最易穿透濾速在11cm/s左右，99.9%玻纖濾紙的最易穿透濾速在14cm/s左右。在測(cè)試的粒徑范圍內(nèi)，中效濾紙的分粒級(jí)效率隨粒徑的增大而增大，高效濾紙的分粒級(jí)效率隨粒徑變化不明顯。玻纖濾紙手折紙的性能更加優(yōu)于玻纖濾紙機(jī)折紙，為以后處理粒子粒徑分布不同的粉塵過(guò)濾材料的選擇提供參考。關(guān)鍵詞：高效過(guò)濾材料，玻纖濾紙，分粒級(jí)效率，穿透率

Study on Properties of High Efficiency Filter Material
ABSTRACT
With the development of science and technology, modern industrial production and modern scientific experiment activities have a higher requirements of the indoor’s air cleaning, the application of high efficiency filter material is increasingly widely and these filter materials playing an even more important role.
In this paper, the resistance and penetration rate of 10 kinds of filter paper such as Hangzhou filter paper, polypropylene and glass fiber filter paper were tested and studied by using of existing experimental devices, the mechanical properties of the three mentioned types of filter paper were also tested and analyzed. As the filter paper’s fractionated efficiency can not be tested in our laboratory, a fractionated efficiency tester has been designed referencing to similar foreign equipment. The experimental program was proposed and the test of filter paper’s fractionated efficiency has been carried out.
The experiment results showed that, with the increase of the wind speed, the filters resistance linear increase, the higher the filtration efficiency of filter paper is, the faster the resistance grew. We can conclude from the transmittance curve that: under the test conditions, Hangzhou filter paper’s easiest penetrating filtration velocity is 11cm/s more or less, and the glass fiber filter paper(99.9%)’s easiest penetrating filtration velocity is 14cm/s more or less. In the test particle size range, the efficiency to different particle size of filter paper’s increase with the increase of particle size, and high efficiency filter paper’s fractionated efficiency did not change significantly. The performance of hand folding glass fiber filter paper is better than machine folding glass fiber filter paper, it offered reference comments for later selection processing of different particle size distribution to dust filter material.
Key words: high efficiency filter material，glass fiber filter paper， efficiency to different particle size，rate of penetration

目 錄
畢業(yè)設(shè)計(jì)（論文）任務(wù)書(shū) I
摘 要 II
ABSTRACT III
第一章 引言 1
1.1高效過(guò)濾材料概述 1
1.1.1空氣過(guò)濾材料的發(fā)展 1
1.1.2 高效過(guò)濾材料的特點(diǎn) 1
1.1.3 高效空氣過(guò)濾器檢測(cè)標(biāo)準(zhǔn) 2
1.1.4 過(guò)濾材料的發(fā)展趨勢(shì) 3
1.2 高效過(guò)濾材料檢測(cè)方法簡(jiǎn)介 4
1.2.1 DOP法 4
1.2.2 鈉焰法 4
1.2.3 油霧法 5
1.2.4 粒子計(jì)數(shù)法 5
1.3 本課題的研究的主要內(nèi)容和意義 5
1.3.1 本課題的研究的主要內(nèi)容 5
1.3.2 本課題的研究意義 6
第二章 過(guò)濾理論 7
2.1 過(guò)濾機(jī)理 7
2.2 濾紙效率計(jì)算 8
2.2.1 慣性機(jī)理 8
2.2.2 擴(kuò)散原理 9
2.2.3 過(guò)濾機(jī)理的合并 9
2.2.4 濾材效率計(jì)算 10
第三章 實(shí)驗(yàn)裝置及方案 11
3.1 試驗(yàn)裝置 11
3.2 實(shí)驗(yàn)方案 19
3.3 實(shí)驗(yàn)材料 21
第四章 實(shí)驗(yàn)數(shù)據(jù)處理與分析 23
4.1 過(guò)濾阻力 23
4.2 穿透率 34
4.3 機(jī)械強(qiáng)度 45
4.4分粒級(jí)效率 51
第五章 結(jié)論與展望 61
5.1 實(shí)驗(yàn)結(jié)論 61
5.2 展望 61
參考文獻(xiàn) 63
致謝 65