本文關(guān)鍵詞：基于強(qiáng)電場(chǎng)放電協(xié)同水力空化的氣液傳質(zhì)研究　出處：《高電壓技術(shù)》2017年06期 　論文類型：期刊論文

  更多相關(guān)文章： 高級(jí)氧化技術(shù) 強(qiáng)電場(chǎng)放電 氧活性粒子 水力空化 傳質(zhì)系數(shù)

【摘要】：為提高氧活性粒子與水的傳質(zhì)速率,利用自行研制的高濃度氧活性粒子溶液產(chǎn)生設(shè)備,通過對(duì)液相單位體積傳質(zhì)系數(shù)(kLa)的計(jì)算,研究了水力空化氣液混溶過程中,水溫、水力空化氣液混溶器進(jìn)、出水端壓力差(p_(in-out))和氣液體積比(VG/VL)及pH值等關(guān)鍵參量對(duì)氧活性粒子與水傳質(zhì)速率的影響。研究結(jié)果表明:氧活性粒子經(jīng)水力空化作用傳質(zhì)進(jìn)入水中的傳質(zhì)系數(shù)遠(yuǎn)高于后續(xù)管路中的傳質(zhì)系數(shù),說明水力空化對(duì)氧活性粒子向水中的傳質(zhì)過程起著關(guān)鍵作用。此外,k La隨水溫(10~30℃)升高,先增大后減小,隨p_(in-out)(0.098~0.305 MPa)與VG/VL(0.025~0.125)增加而增加,隨p H值(2.54~10.63)增加而減小,當(dāng)水溫為20℃,pH值為2.54,p_(in-out)為0.305 MPa,VG/VL為0.125時(shí),kLa最大,為10.62 s~( 1)。通過對(duì)以上關(guān)鍵參量的研究,可進(jìn)一步優(yōu)化大氣壓強(qiáng)電場(chǎng)放電協(xié)同水力空化氣液混溶高級(jí)氧化技術(shù)的應(yīng)用參數(shù)與途徑。
[Abstract]:In order to improve the mass transfer rate between oxygen active particles and water, the liquid phase unit volume mass transfer coefficient (KLA) was calculated by using a high concentration oxygen active particle solution generator. Water temperature and hydraulic cavitation gas-liquid mixers were studied in the process of hydraulic cavitation gas-liquid mixing. Outlet end pressure difference (PSD) and gas-liquid volume ratio (VG / VLV). The results show that the mass transfer coefficient of oxygen active particles into water through hydraulic cavitation is much higher than that in subsequent pipes. The results show that hydraulic cavitation plays a key role in the mass transfer of oxygen active particles to water. In addition, with the increase of water temperature (1030 鈩，

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