Development of High Performance Filtration System for Hot Gas Cleaning
开发用于热气体净化的高性能过滤系统
基本信息
- 批准号:08558064
- 负责人:
- 金额:$ 8.38万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (A)
- 财政年份:1996
- 资助国家:日本
- 起止时间:1996 至 1997
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
As filtration goes on, dusts are collected on a ceramic filter element and form a dust cake layr on it. The filtration conditions and particle properties affect the accumulated amount and its shape on the element. Once dust cake is formed, the appearance of the filter changes and thus the flow around it also changes. This means that both flow field and the shape of dust layr interact with each other and they change with time, i.e., filtration performance changes with time. To elucidate the change in the flow around the filter element and accumulation process with time, a new analysis method has been proposed. Its capability has been demonstrated by solving them at filtration velocity of 5 Ncm/s varying gas temperature from 293 to 1123 K,pressure from 1 to 10 atmosphere and packing from 0.03 and 0.12.As a result, it is found that dust cake forms a non-uniform layr on the element at any filtration condition, i.e., the maximum deposition appears at the front of the element and the minimum is observed around 120-150 degree from the front. It shifts forward as temperature rises but backward as pressure rises. With the increasing pressure, temperature and packing density, the uniformity of the dust layr increases. Suction velocity to the element, i.e., filtration velocity, decreases with time because of the increase in the resistance due to the accumulated dust. This also results in the suppression of accumulation rate of dust on the element with time. This effect is significant at high pressure and high temperature. Furthermore, pressure drop across the element increases non-linearly with time and it shows higher drops when temperature and pressure are high.
随着过滤的进行,粉尘被收集在陶瓷滤芯上,并在其上形成尘饼层。过滤条件和颗粒性质影响其在元件上的累积量及其形状。一旦粉尘饼形成,过滤器的外观就会发生变化,因此它周围的流量也会发生变化。也就是说,流场和粉尘层的形状是相互作用的,并随时间而变化,即过滤性能随时间而变化。为了阐明滤芯周围的流量随时间的变化和积累过程,提出了一种新的分析方法。通过在过滤速度为5 Ncm/s、气体温度为293 ~ 1123 K、压力为1 ~ 10个大气压、填料为0.03 ~ 0.12的条件下进行求解,证明了其性能。结果发现,在任何过滤条件下,滤芯上的尘饼都不均匀地形成一层,即最大的沉积出现在滤芯的前部,最小的沉积出现在离前端120 ~ 150度左右。它随着温度的升高而向前移动,但随着压强的升高而向后移动。随着压力、温度和堆积密度的增加,粉尘层的均匀性增加。由于积聚的灰尘使阻力增大,元件的吸入速度即过滤速度随时间而减小。这也导致随着时间的推移,元件上的粉尘积累速率受到抑制。这种效应在高压和高温下是显著的。此外,整个元件的压降随时间呈非线性增加,当温度和压力较高时,压降幅度较大。
项目成果
期刊论文数量(12)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
C.Kanaoka et al: "ANALYSIS OF HOT GAS FILTRATION BY RIGID CERAMIC CANDLE TYPE FILTER AND DUST RELEASE MECHANISM" 4th JAPAN-KOREA symp.Separation Tech.725-728 (1996)
C.Kanaoka 等人:“通过刚性陶瓷烛型过滤器和除尘机构进行热气体过滤的分析”第 4 届日本-韩国 symp.Separation Tech.725-728 (1996)
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- 影响因子:0
- 作者:
- 通讯作者:
金岡 千嘉男 他2名: "CLEANING OF DUST FROM PULSE JET BAG FILTER" '96CHINA-JAPAN SYMPOSIUM ON PARTICUOLOGY. 104-108 (1996)
Chiyoshi Kanaoka 和其他 2 人:“脉冲喷射袋式过滤器中的灰尘清洁”96CHINA-JAPAN SYMPOSIUM ON PARTICUROY (1996)。
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金岡 千嘉男 他1名: "ANALYSIS OF HOT GAS FIL TRATION BY RIGID CERAMIC CANDLE TYPE FILTER AND DUST RELEASE MECHANISM" THE FOURTH JAPAN-KOREA SYMPOSIUM ON SEPARATION TECHNOLOGY 1996. 725-728 (1996)
Chiyoshi Kanaoka 等 1 人:“刚性陶瓷烛式过滤器热气体过滤及除尘机构的分析”第四届日韩分离技术研讨会 1996. 725-728 (1996)
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- 影响因子:0
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C.Kanaoka, T.Kishima: "Mana Amornkitbamrung, Thickness Distribution of Dust cake on a Candle Type Ceramic Filter" 1997 Autumn Meeting of Soc.Powder Technol., Japan. 177-180 (1997)
C.Kanaoka、T.Kishima:“Mana Amornkitbamrung,蜡烛型陶瓷过滤器上粉尘饼的厚度分布”1997 年日本粉末技术学会秋季会议。
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- 影响因子:0
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金岡 千嘉男 他2名: "ACCIUMULATION AND RELEASE OF DUST FROM RIGD CERAMIC FILTER ELEMENT" 3rd International Symposium on Gas Cleaning at High Temperatures. 183-192 (1996)
Chiyoshi Kanaoka 和其他 2 人:“刚性陶瓷过滤器元件中灰尘的积累和释放”第三届高温气体清洁国际研讨会 183-192 (1996)。
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KANAOKA Chikao其他文献
KANAOKA Chikao的其他文献
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{{ truncateString('KANAOKA Chikao', 18)}}的其他基金
Development of Controlling Technologies of Indoor Air Environment in Highly Airtight and Insulated Living Space
高密闭隔热居住空间室内空气环境控制技术的发展
- 批准号:
10650585 - 财政年份:1998
- 资助金额:
$ 8.38万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Deposition of Ultra Fine Aerosol Particles on Solid Surfaces
超细气溶胶颗粒在固体表面上的沉积
- 批准号:
62550692 - 财政年份:1987
- 资助金额:
$ 8.38万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)
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