| 摘要 |
1,077,707. Cleaning axial-flow and radialflow compressors. BROWN, BOVERI & CO. Ltd. Jan.3, 1966 [Jan.4, 1965], No.45/66. Heading F1C. The formation of deposits in the flow path of an axial-flow or radial-flow compressor is prevented or reduced by permanently wetting those components bounding the gas flow which are affected by deposits by continuously admixing with the gas flow a slowly vaporizing liquid of good wetting properties. Since deposits most frequently occur on the diffuser blades and diffuser walls (in the case of a radial-flow compressor), the liquid may be admitted at the annular space between the impeller and the diffuser blades. More conveniently, however, it may be fed to the compressor inlet, either through apertures in the casing wall through which the liquid is drawn by the injector effect of the gas flow or through nozzles which are fed with the liquid by a pump. The liquid flow may be regulated by varying the pump pressure or by adjusting a valve in the feed pipe either manually or by means of a regulator so as to be proportional to the compressor throughput. Where the compressor delivers combustion air to a gas turbine or an I. C. engine, the liquid may be a fuel, such as diesel oil, and the quantity of fuel fed to the turbine or engine in the conventional manner can then be correspondingly reduced. The fuel used for cleaning may be pumped by an additional pumping element of the fuel injection pump, whereby the amount fed for cleaning is proportional to the amount of fuel injected. |
