| L阀控制飞灰循环特性的研究 |
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| 引用本文： | 陈祥荣,张坚平,沈湘林. L阀控制飞灰循环特性的研究[J]. 东南大学学报(自然科学版), 1992, 0(Z1) |
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| 作者姓名： | 陈祥荣 张坚平 沈湘林 |
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| 作者单位： | 东南大学热能工程研究所，东南大学热能工程研究所，东南大学热能工程研究所 |
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| 摘 要： | 飞灰循环回燃是提高鼓泡床锅炉燃烧效率的一项投资少、效果显著的技术,而控制合理的循环量是实现飞灰循环回燃技术的关键。飞灰循环系统通常由旋风分离器、立管和控制阀组成。由于工作条件恶劣,控制阀多采用非机械阀。非机械阀是70年代发展起来的固体循环调节阀。由于没有移动部件,适合在高温高压及有磨损、腐蚀等环境中运行,已被广泛应用。非机械阀通过调节松动风量来改变气-固在立管及阀内的流动,从而控制固体循环量。L阀和J阀是其中较典型的形式。对于其原理及易于控制的Geldart B类物料在其中的流动特性,Knowlton和Hirsan等曾作过深入研究,但是由于
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Investigation into Control Characteristics of Fly Ash Flow in an L Valve |
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| Chen Xiangrong Zhang Jianping Shen Xianglin. Investigation into Control Characteristics of Fly Ash Flow in an L Valve[J]. Journal of Southeast University(Natural Science Edition), 1992, 0(Z1) |
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| Authors: | Chen Xiangrong Zhang Jianping Shen Xianglin |
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| Affiliation: | Thermoenergy Engineering Research Institute |
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| Abstract: | Fly ash belongs to the Geldart A class. Its flow can not be controlled smoothly and widely with ordinary L valve. In this research, it was improved by means of appropriate arrangement of the airation air, so that its control characteristics became as good as those of the Geldart B materials. The experiment results are shown in this paper. |
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| Keywords: | valves for granular mediums flying ash circulation |
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