摘要:
A double-seat valve with an upper valve stem and a lower valve stem which, on the end, each have valve sealing bodies, each of which valve sealing bodies has a seal which is located on the balance diameter. One of the valve sealing bodies also has a center seal which is used to seal a leakage space when the valve stems are in the open position. The center seal also lies on the balance diameter. The other valve sealing body has a sealing collar, against which sealing collar the center seal is in contact when the valve stems are in the open position, so that even in this case, a sealing of the leakage space is guaranteed.
摘要:
A pressure filtration system for cleaning residual quenching water of a gasifying device that gasifies carbon-containing fuels under elevated pressure is provided. The soot water from the quencher is passed to a filter system, which has pressure filter chambers operating alternately in filtering mode under gasifying pressure or in cleaning mode. The filtrate from these chambers is passed to a quenching water reservoir, from which the quencher is fed with quenching water. Only small temperature and pressure losses with respect to the residual quenching water leaving, and only a small additional amount of energy has to be expended to overcome the remaining pressure difference to bring the filtrate that is to be returned back to the gasifying pressure. The residual quenching water is cleaned substantially under gasifying pressure in a pressure filter, avoids flash evaporation of the residual quenching water into the vacuum area, with vapour cooling and a subsequent increase in pressure and reheating.
摘要:
A burner is provided for gasifying powdered fuel with a free oxygen-containing oxidant at temperatures up to 1900° C. and pressures up to 10 MPa. The burner includes a powder burner part having an oxidant channel and a powdered fuel channel, and a central pilot burner part. An annular channel for the outflow of an inert medium is arranged at the burner mouth between the pilot burner part and the powder burner part.
摘要:
A compressed air filter adapter for connecting a filter element (12) to a filter connection housing (13) includes a flow duct (21) enclosed by a wall (20) for compressed air, the flow duct (21) at a first end being delimited by a first opening (14), having an inner contour (142) defined by a first edge (141) and an outer contour (143), and at a second end by a second opening (15), having an inner contour (152) defined by a second edge (151) and an outer contour (153). The first opening (14) is provided for connection to a filter connection housing (13) and forms an opening cross-section (16), defined by the inner contour (142) of the first opening (14). The second opening (15) defines an opening on the filter side and forms a second opening cross-section (17), defined by the inner contour (152) of the second opening (15).
摘要:
A method for starting high-performance entrained flow gasification reactors with a combination burner or a plurality of pulverized fuel burners, and an ignition and pilot burner. The ignition and pilot burner is ignited, substoichiometrically with fuel gas and a gasifier containing free oxygen. The reactor is brought to the pressure intended and a flow of a fuel gas is supplied with a partial flow of the gasification agent at a substoichiometric ratio through the fuel lines leading to the fuel burner and ignited by the flame of the ignition and pilot burner with a partial flow of the gasification agent. Next, the pulverized fuel is supplied together with a further oxygen-containing gasifying agent through the supply lines to the pulverized fuel burner and is ignited by the flame of the ignition and pilot burner and by the fuel gas flames of the combustible gas generated at the pulverized fuel burner.
摘要:
The invention is directed to an air spring arrangement having a device for making ultrasonic distance measurements. An ultrasonic sensor, which is built into an air spring (2) for making measurements, can be disturbed when high frequency sonic oscillations occur when filling and venting the air spring. An air supply line (8) is disposed between the air spring (2) and a source of compressed air (30). To prevent the above disturbing frequencies, the air supply line (8) includes an air connecting pipe stub (10) which is lined with a net-shaped layer (16) on its inner wall surface. The layer (16) is preferably a plastic mesh. The filaments (18) of the mesh-shaped layer (16) are slightly inclined to the longitudinal center axis (28) of the pipe stub (10).
摘要:
Separation of dust in a quenching device arranged downstream of an entrained-flow gasification system is increased by a baffle with a double deflection system for deflecting the crude gas at approximately 180° angle. An additional spraying element is provided. The arrangement can be single-sided or double-sided, or can include an additional weir.
摘要:
Separation of dust in a quenching device arranged downstream of an entrained-flow gasification system is increased by a baffle with a double deflection system for deflecting the crude gas at approximately 180° angle. An additional spraying element is provided. The arrangement can be single-sided or double-sided, or can include an additional weir.
摘要:
A device for the reliable measurement and control of the filling level in the quencher sump of a quenching chamber arranged downstream of the gasifying chamber is provided. The device has a differential-pressure transmitter. The measuring location recording the pressure of the gas chamber is flushed with inert gas. The device unproblematically senses the pressures in the quenching chamber and at the bottom of the quencher sump. The difference between which is used as a controlled variable for the filling level.
摘要:
In a method and a device for slope and/or pitch recognition in a vehicle (1, 1′, 1″) at least one speed and a transverse and/or longitudinal acceleration of the vehicle are determined and a slope or pitch situation is assumed, when the speed is smaller than the limit value vGlmax and the transverse acceleration is greater than a limit value aqmax and/or the longitudinal acceleration is greater than a limit value almax. On recognition of a slope or pitch situation, a ride control system can be automatically deactivated and/or control thresholds of the ride control system are expanded.