Nuovo Pignone Tecnologie Srl

Nuovo Pignone Srl

Nuovo Pignone Spa

Angelo Grimaldi

Giuseppe Iurisci

Giuseppe Sassanelli

Francesco Cangioli

Marco Pelella

Leonardo Baldassarre

Simone Corbo

Antonio Pelagotti

Emanuele Rizzo

Marco Formichini

Andrea Bernocchi

Alberto Guglielmo

Simone Bassani

Lorenzo Toni

Dario Matina

Ernani Fulvio Bellobuono

Roberto Valente

Domenico Berterame

Marco Quercia

Simone Tanteri

Davide Becherucci

Antonio Cristallo

Elvira Bongermino

A hydrogen production plant, to produce hydrogen having a compressing assembly, for increasing the pressure of the hydrogen. The compressing assembly has at least one barrel compressor and at least one integrally geared centrifugal compressor. Also disclosed are methods of compressing hydrogen.

Hydrogen compressing assembly, hydrogen production plant, and compressing method

The compressor is used for processing a CO2 flow; a first compressor stage has a first row of blades with a first number of blades and a second compressor stage, downstream the first compressor stage, has a second row of blades with a second number of blades; the number of blades of the first compressor stage is less than the number of blades of the second compressor stage; there is an annular gap between the first row of blades and the second row of blades; the first compression stage () is designed so to assure that the CO2 flow is in supercritical condition, preferably close to CO2 critical point, at its outlet, and so that the second compressor stage process CO2 in supercritical condition.

Compressor for CO2 cycle with at least two cascade compression stages for assuring supercritical conditions

The centrifugal compressor has a housing with two or more compressor inlets for process gas to be compressed; an impeller is located inside the housing so to receive an inlet flow of process gas from the two compressor inlets through a plenum chamber and increases gas pressure as process gas flows in the impeller; thanks to the two or more inlets, uniformity of flow at the inlets may be achieved through short collector pipes fluidly connected upstream of the inlets; piping of a compressor system including such compressor is made easy as it is subject to fewer constraints.

Centrifugal compressor and method of operating the centrifugal compressor to produce a uniform inlet flow of process gas

A compressor system is disclosed, including a first compressor unit having: at least a first gas inlet at a first gas pressure level; a second gas inlet at a second gas pressure level; and a gas discharge; a second compressor unit having: at least a third gas inlet at a third gas pressure level; a fourth gas inlet at a fourth gas pressure level; and a gas delivery. The gas discharge of the first compressor unit is fluidly coupled to one of the third gas inlet and fourth gas inlet of the second compressor unit.

Split refrigerant compressor for the liquefaction of natural gas

Compression train for a natural gas liquefaction process. The compression train includes a driver machine and only one centrifugal compressor machine driven in rotation by the driver machine; the compressor is configured to compress a refrigerant gas with a molecular weight less than 30 g/mol from a suction pressure to a discharge pressure; the ratio between discharge and suction pressures is higher than 10. A LNG plant including a compression train.

Compression train including one centrifugal compressor and LNG plant

An unshrouded turbomachine impeller is disclosed. The impeller comprises a hub and a plurality of sequentially arranged blades. Each blade extends from a blade root at the hub to a blade tip and is comprised of a first blade edge and a second blade edge. A flow vane is formed between each pair of neighboring blades. A connection member extends across each flow vane between neighboring blades and rigidly or monolithically connects a first modal displacement region of a first one of the pair of neighboring blades to a second modal displacement region of a second one of the pair of neighboring blades.

Unshrouded turbomachine impeller with improved rigidity

A coupling guard for a rotating member comprising a shell surrounding the rotating member, a plenum disposed in the shell, at least an injection tube for injecting a cooling gas and an outlet for discharging the cooling gas, wherein the injection tube extends through the plenum from a first axial opening proximal to the shell to a second axial opening proximal to the rotating member, the injection tube having a leading edge which first contacts the gas circulating in the plenum and a trailing edge opposite to the leading edge, the second opening having a first portion orthogonal to the axis of the injection tube and a second portion across the trailing edge, adjacent to the first portion and parallel to the axis of the injection tube.

Turbomachine with a cooled coupling guard

A multistage centrifugal turbomachine comprising a rotor assembly comprising a shaft carrying a first and a second impeller, and a stator comprising a passage for a fluid flowing from an outlet side of the first impeller to an inlet side of the second impeller, the passage comprising a diffuser downstream the outlet side of the first impeller), a return channel upstream the inlet side of the second impeller, a bend connecting the diffuser and the return channel, and a plurality of stator blades being provided in the return channel, wherein a portion of the return channel is delimited by the first impeller, the plurality of stator blades extending at least partially in the portion of the return channel.

Multistage centrifugal turbomachine

Growing community of inventors

Florence, Italy

Angelo Grimaldi