摘要:
A system for the preparation of a combustible gaseous mixture from solid or liquid fuels, in which an artificial gravitational field is used, generated by a rotating cup-shaped grate (1) for supporting a travelling bed of granular refractory material (sand), the fuel lying upon said bad. A gaseous medium is supplied to the outside of the support grate (1) at a pressure higher than the one prevailing inside said grate and results in a velocity of said medium such, that only very small particles of the travelling bed are entrained, while the temperature of the combustible mixture remains in the order of 900°C.
摘要:
A rotary screw compressor comprising a casing (1), a male rotor (6) and a female rotor (18) enclosed in a working space. The casing has a discharge outlet (2) at the high pressure end and a suction inlet (3) at the low pressure end of the working space. At least one rotor is rotatably supported at the low pressure end through a bearing arrangement comprising a bearing bracket (11) fixed to an end cover (5). The bearing bracket has a cylindrical outer circumferential surface and projects into a cavity provided in the rotor forming a first chamber (9) between the bracket and the rotor. The bracket is provided with an oil feed channel to feed oil into the first chamber. The circumferential surface of the bearing bracket is provided with at least a groove connected to the oil feed channel and a recess (13) connected to an oil drainage channel (12) provided in the bearing bracket. Sealing means (8) are provided between the first chamber and the working space.
摘要:
A process and device for the separation of particles from a stream of gas by centrifugal action, comprising a driven rotatable hollow conically diverging body (1,2) and a feeding means (4) for directing the contaminated gasstream towards the inside wall of said body in the region of its narrowest. portion so that the particles will be deposited against said wall and will gradually move towards the widest portion of said conical body, the stream of gas being controlled such that within the body a toroidal eddy forms for the recirculation of the contaminated gasstream.
摘要:
U The invention relates to a method of improving the part-load behaviour of a turbo machine operating with a rotor 13 having fixed vanes 14. The said method uses the feature of applying auxiliary fluid injection nozzles 18 near the inlet 11 of the rotor 13 for adding a small amount of fluid to the main fluid flow. The said additional amount is directed such that a substantial velocity component of the movement of this additional fluid is directed tangentially with respect to the rotation of the rotor.
摘要:
An apparatus for the preparation of a combustible gas mixture from solid or liquid fuels, consists of a housing (1), which comprises at least one rotatably disposed, conical basket (2) a fuel inlet (5), an inlet (9) for a gasification fluid, an ash outlet (6) and an outlet (8) for the produced combustible gas mixture. The fuel to be gasified is introduced into the inlet (5) and the apparatus is so operated that a number of revolutions of the basket(s) is maintained such, that the fuel is pressed against the said basket which also functions as a supporting grate.