摘要:
The invention concerns a method and an installation for preparing a combustible gas mixture from solid or liquid fuels by means of a rotatable cup-shaped, perforated bowl (1) forming a supporting grate with a fuel supply (6) to its inner wall and a feed of a gasifying fluid to the outer side of the grate, an intermediate layer (14) of a refractory material being formed against the inner wall of the rotating grate for supporting the fuel and finally dividing the gasifying fluid.
摘要:
Piston compressor for compressing gas, comprising a frame with at least one cylinder which has an essentially horizontal axis, a piston which is reciprocable in the cylinder, a piston rod which at one end thereof is fixed to the piston, while the other end thereof is coupled to a crosshead which is guided in the frame and is reciprocable by a drive mechanism, and bearing means which support the piston/piston rod unit, formed by the piston and the piston rod connected thereto, relative to the frame. The bearing means comprise: a source which continuously delivers a gas under pressure, conduit means which are connected to the source and open out at at least one outflow opening for supplying the gas coming from the source to a position between the piston and the cylinder, the postion of the at least one outflow opening and the pressure of the gas supplied from the source being such that gas supplied to a position between the piston and the cylinder constantly exerts an upward pressure on the piston/piston rod unit.
摘要:
Piston compressor for compressing gas, comprising a frame with at least one cylinder which has an essentially horizontal axis, a piston which is reciprocable in the cylinder, a piston rod which at one end thereof is fixed to the piston, while the other end thereof is coupled to a crosshead which is guided in the frame and is reciprocable by a drive mechanism, and bearing means which support the piston/piston rod unit, formed by the piston and the piston rod connected thereto, relative to the frame. The bearing means comprise: a source which continuously delivers a gas under pressure, conduit means which are connected to the source and open out at at least one outflow opening for supplying the gas coming from the source to a position between the piston and the cylinder, the postion of the at least one outflow opening and the pressure of the gas supplied from the source being such that gas supplied to a position between the piston and the cylinder constantly exerts an upward pressure on the piston/piston rod unit.
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:
The invention concerns a process for the preparation of a combustible gaseous mixture or product gas from a non-gaseous fuel in which a gasifier is used provided with a rotatably driven cup-shaped support grate 3. A granular or pulverized refractory auxiliary material and fuel are continuously fed to the inner side of said grate, a gasification medium or process gas being fed to the outer side of the grate, whereupon the resulting product gas and the exhausted auxiliary material with ash from the fuel, are discharged separately. According to the invention the fuel consists, at least partly, of a residual oil previously fed into the fuel chamber 14, 15. Furthermore the invention is embodied in a device which is designed to perform the said process.