| 煤矿机械液压系统冷却净化器的研制与实验研究 |
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| 引用本文： | 周明连,许淑惠,葛振玉.煤矿机械液压系统冷却净化器的研制与实验研究[J].煤炭学报,2000,25(3):329-332. |
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| 作者姓名： | 周明连 许淑惠 葛振玉 |
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| 作者单位： | 1. 北方交通大学,机电学院,北京,100044
2. 河北建筑科技学院,河北,邯郸,056038 |
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| 基金项目： | 河北省科技攻关项目 !(982 1 2 1 4 3D ) |
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| 摘 要： | 在研究不同结构的管壳式热交换器壳侧流动和传热特性的基础上，结合强化传热技术、高梯度磁过滤技术，研制了适合煤矿机械液压及润滑系统使用的冷却净化器，测试表明，冷却净化器对１０ｕｍ以上颗粒的过滤效率为８４％，是一般磁过滤器效率的３宙侧对流换热系数比现有冷却器高１９．７％。该冷却净化器已在液压锚杆 机中取得了成功的应用。
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| 关 键 词： | 液压系统 冷却净化器 强化传热 煤矿机械 |
| 修稿时间： | 1999-12-29 |
Development and experimental study on the cooling-purifying device for hydraulic system of mining machinery |
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| ZHOU Ming-lian,XU Shu-hui,GE Zhen-yu.Development and experimental study on the cooling-purifying device for hydraulic system of mining machinery[J].Journal of China Coal Society,2000,25(3):329-332. |
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| Authors: | ZHOU Ming-lian XU Shu-hui GE Zhen-yu |
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| Abstract: | The flow patterns, pressure drops, and heat transfer characteristics of the shell side of shell and tube heat exchangers with different size segmental baffles, different size helical baffles, different porosity porous media and their combinations were studied by large amount of experiments. By combination of the heat transfer augmentation theory and mechanism of high gradient magnetic filter, a purifying cooling device for hydraulic and lubrication system was created and tested. Experiments show that the filtration ratio of the purifying cooling device is 6 09, about 3 times as high as traditional magnetic filter, and that the convection heat transfer coefficient of shell side is 19 7% higher than a newly developed oil cooler in Japan. The purifying cooling device has been successfully used in hydraulic bolter system. |
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| Keywords: | hydraulic system purifying cooling device heat transfer augmentation high gradient magnetic filter |
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