自吸式文丘里水洗器引射特性研究
發(fā)布時間：2018-12-10 07:31
【摘要】：以安全殼過濾排放系統(tǒng)中的自吸式文丘里水洗器為研究對象,采用空氣和水為工質(zhì),在不同空氣流量、液位及系統(tǒng)壓力下對文丘里水洗器的引射特性進行實驗研究。結(jié)果表明,隨著喉部氣相折算流速(簡稱喉部流速)的增加,吸液口兩側(cè)壓差近似呈拋物線規(guī)律增長,引射量線性增加。壓力容器內(nèi)的液位對引射特性的影響與其相對于文丘里水洗器出口的位置有關(guān),當(dāng)液位低于文丘里水洗器出口時,隨著液位的提升,引射量獲得明顯的提高,并隨喉部流速的變化表現(xiàn)出分區(qū)效應(yīng),喉部流速較低時,增加液位對于改善引射量更加有效;當(dāng)液位在文丘里水洗器出口以上變化時,對引射量幾乎無影響。壓力是影響自吸式文丘里水洗器引射特性的重要因素,這主要歸因于氣體密度的變化,在0~150kPa范圍內(nèi),隨著壓力的提升,引射量得到明顯改善,且在高喉部流速區(qū)域壓力變化對引射量的影響較在低喉部流速區(qū)域更加顯著。
[Abstract]:The self-priming Venturi water washer in containment filtration and discharge system was used as the research object. The ejection characteristics of Venturi water washer were studied under different air flow rate, liquid level and system pressure by using air and water as working medium. The results show that with the increase of the gas velocity of the throat, the pressure difference between the two sides of the sucking mouth increases approximately with the parabola law, and the quantity of ejection increases linearly. The effect of liquid level in pressure vessel on ejection characteristics is related to its position relative to the outlet of Venturi water washer. When the liquid level is lower than the outlet of Venturi water washer, the ejection quantity increases obviously with the increase of liquid level. With the change of throat velocity, there is a zoning effect. When the throat velocity is low, increasing the liquid level is more effective to improve the ejection quantity. When the liquid level changes above the outlet of Venturi water washer, it has little effect on the ejection quantity. Pressure is an important factor affecting the ejection characteristics of the self-priming Venturi water washer, which is mainly due to the change of gas density. In the range of 0~150kPa, the ejection quantity is improved obviously with the increase of pressure. The effect of pressure on ejection is more significant in high throat than in low throat.
【作者單位】： 哈爾濱工程大學(xué)核安全與仿真技術(shù)國防重點學(xué)科實驗室;
【分類號】：TL364.3
本文編號：2370202
[Abstract]:The self-priming Venturi water washer in containment filtration and discharge system was used as the research object. The ejection characteristics of Venturi water washer were studied under different air flow rate, liquid level and system pressure by using air and water as working medium. The results show that with the increase of the gas velocity of the throat, the pressure difference between the two sides of the sucking mouth increases approximately with the parabola law, and the quantity of ejection increases linearly. The effect of liquid level in pressure vessel on ejection characteristics is related to its position relative to the outlet of Venturi water washer. When the liquid level is lower than the outlet of Venturi water washer, the ejection quantity increases obviously with the increase of liquid level. With the change of throat velocity, there is a zoning effect. When the throat velocity is low, increasing the liquid level is more effective to improve the ejection quantity. When the liquid level changes above the outlet of Venturi water washer, it has little effect on the ejection quantity. Pressure is an important factor affecting the ejection characteristics of the self-priming Venturi water washer, which is mainly due to the change of gas density. In the range of 0~150kPa, the ejection quantity is improved obviously with the increase of pressure. The effect of pressure on ejection is more significant in high throat than in low throat.
【作者單位】： 哈爾濱工程大學(xué)核安全與仿真技術(shù)國防重點學(xué)科實驗室;
【分類號】：TL364.3
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相關(guān)期刊論文 前1條
1 趙俊起,劉同欣,楊印成,趙俊卿;多功能文丘里管濕式除塵器模擬實驗系統(tǒng)[J];電力情報;1997年02期
，本文編號：2370202
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