| 摘要 |
FIELD: machinery-building, chemical, metallurgical and construction industries, particularly gas purifiers of blast-furnace centrifugal and axial-flow compressors, air turbo-compressor in chemical industry, stationary power installations, etc. SUBSTANCE: purifier has cylindrical body, purified air withdrawal device formed as truncated cone located coaxial into cylindrical body in spaced relation thereto. Swirler is fixedly installed in body cylindrical part above cone smaller base. Swirler consists of airfoil- section blades connected to cowl hub. Annular channel for dust extraction is created between purified air withdrawal device and cylindrical body. Untwisting means for purified gas flow having airfoil-section blades and hub for purified air venting out is mounted into purified air withdrawal device. Purified air withdrawal device has taper angle of 8-12 deg. and is formed as louver grate. Cross- section of swirler airfoil-section blade is selected for dust-and-gas flow optimization by optimum law. Ratios of inlet hub diameter and hub diameter in purified air withdrawal device outlet to cylindrical body part diameter are 0.3 - 0.4 and 0.2 - 0.3 accordingly. EFFECT: increased purification efficiency, decreased hydraulic resistance, reduced device dimensions. 4 cl, 5 dwg |
