摘要:
A wet-gas centrifugal compressor is disclosed. The compressor comprises a compressor casing and at least one impeller arranged in the compressor casing for rotation around a rotation axis. A stationary diffuser is arranged in the compressor casing and extends around the impeller. The diffuser has a curved end portion with a radially inner curved wall and a radially outer curved wall. A plurality of dry-gas extraction holes is provided, ending at a plurality of respective inlet ports arranged around the rotation axis and on the inner curved wall of the curved end portion of the diffuser. Each dry-gas extraction hole extends from the respective inlet port towards the rotation axis and is inclined over a radial direction, such that each dry-gas extraction hole is oriented in a counter-flow direction with respect to a direction of the gas flow in the curved end portion of the diffuser.
摘要:
A wet-gas compressor is described, comprising a compressor casing and a rotor, for rotation in the compressor casing and comprised of at least one impeller. In the compressor casing, a cavity is provided, where liquid contained in a wet gas can collect during operation of the compressor. A drain port is at the bottom of the cavity and a vent port is above the drain port of the cavity. The drain port and vent port are in fluid communication with a liquid-level measuring chamber. A level gauge is provided at the liquid-level measuring chamber and a drainage valve for discharging liquid from the cavity towards a liquid discharge line connected to the drain port. A control arrangement receives a signal from the level gauge and controls the opening of the drainage valve liquid in the liquid-measuring chamber reaches a threshold level.
摘要:
A sealing device is described, for separating a first compartment from a second compartment in a turbomachine, a wet gas being processed in the first compartment. The sealing device comprises a rotary component and a stationary component. A sealing member is arranged between the rotary component and the stationary component. The device further comprises an annular wet-particles collector and an oil-jet element, mounted on the rotary component for rotation therewith. The oil-jet element is surrounded by the annular wet-particles collector, such that wet particles contacting the oil-jet element are projected by centrifugal force into the annular wet-particles collector.
摘要:
A filter system for filtering intake air of a gas turbine, comprising a first filter arrangement and a second filter arrangement, located downstream from the first filter arrangement and having a higher collection efficiency than the first filter arrangement. Furthermore, a guard filter arrangement, having a lower collection efficiency than the first filter arrangement, is located between the first filter arrangement and the second filter arrangement.
摘要:
The system for driving a reciprocating compressor comprises a reciprocating compressor (1) with a crankshaft (31). A Stirling engine (50) is drivingly connected to the crankshaft (31) of the reciprocating compressor (1). A heat source (71), for example a waste heat source, provides heat to the hot end of the Stirling engine. Heat is partly converted into mechanical power to drive the reciprocating compressor (1).
摘要:
An apparatus (1) for sealing an internal environment of a turbomachine, comprises a first chamber (2) connectable in fluid communication with a high pressure environment (HP) of a turbomachine (100) so that a working fluid can flow from the high pressure environment (HP) to the first chamber (2); a second chamber (3) in fluid communication with a lubrication circuit ( 106) so that a lubricant can flow from the lubrication circuit (106) to the second chamber (3); the first (2) and second chambers (3) are arranged in fluid communication with each other so that the working fluid can flow from the first (2) to the second chamber (3); a return line (4) for the working fluid in fluid communication with the first chamber (2) and connectable in fluid communication with a low pressure environment (LP) of the turbomachine (100) so that the working fluid can flow from said first chamber (2) to said low pressure environment (LP); a pressure regulating device (5) along the return line (4) configured to provide a predetermined pressure drop.
摘要:
A set of impellers (1A, 5B, 1C, 5D, 1E) that are axially adjacent to each other and that have respective axial through holes (2A, 6B, 2C, 6D, 2E) are assembled; at least a first and a second axial tie rods (4A, 4B, 4C) are used; at least one connection element (5B, 5D) being axially adjacent to two impellers (1A, 1C, 1C, 1E) respectively at its two sides and having an axial through hole (6B, 6D) is provided; the connection element (5B, 5D) is used for securing, at one side of its axial through hole (6B, 6D), an end of the first axial tie rod (4A, 4B) and, at the other side of its axial through hole (6B, 6D), an end of the second axial tie rod (4B, 4C); typically and advantageously, the connection element (5B, 5D) is one of the impellers (1A, 5B, 1C, 5D, 1E) of the set.
摘要:
A washing system is described for a gas turbine engine with an axial compressor, comprising: an inlet screen at the air flow inlet of the compressor to protect the compressor from foreign object damage, an arrangement of nozzles and manifolds for spraying the washing liquid, and a washing liquid supply system connected to the arrangement; the inlet screen comprises a supporting structure and a filtering net fixed to the supporting structure; the arrangement of nozzles and manifolds is integrated in the supporting structure of the inlet screen.
摘要:
The centrifugal compressor impeller (9) comprises an inlet, an outlet and a disk (23) extending from the inlet to the outlet. A plurality of blades (25) extend from the disk (23), each blade having a leading edge (25L) at the inlet, a trailing edge (25T) at the outlet, a blade base (25B) extending along the disk between the leading edge and the trailing edge, and a blade tip (25A) extending between the leading edge and the trailing edge opposite the disk. The trailing edge is S-shaped with an intermediate inflection.