摘要:
A reformer which may be included in a process plant, comprises a reactor chamber having a combustion chamber, to which fuel and combustion air are supplied. The exhaust gas from the combustion chamber may have a very high temperature, for example 650° C. The combustion chamber supplies heat energy to the reactor chamber in which a heat treatment of gas can take place. The process plant comprises at least one gas turbine. In order to reduce the consumption of energy, the exhaust gas discharge outlet of the gas turbine is through a channel, directly or indirectly, in fluid communication with the combustion air inlet of said combustion chamber, so that turbine exhaust gas preheated to a substantial temperature, e.g. 350-450° C., is blown through said channel, etc., through the overpressure of the turbine exhaust gas, e.g. of up to 0.5 bar, without the need for a fan, to the intake of the combustion chamber.
摘要:
A plurality of moving blades are provided around rotor disks and rotate together with said rotor disks. Compressor rear case rings surround the periphery of these moving blades and form a compression flow path therein. A bleeding chamber is provided around the compressor rear case rings and introduces a portion of a main flow moving through the compression flow path as bleed air. Cooling flow path is formed between the compressor rear case rings and the bleeding chamber in which bleed air cf on its way to the bleeding chamber flows along the outer surface of the compressor rear case rings.
摘要:
The heat recovery boiler (1) is operated, at least temporarily, by feeding its combustion system with air (13) and with a stream (15) of flue gases (4) recycled to a level of at least 45%, typically between 50 and 65%, so as to allow the efficiency of the boiler to be increased and to decouple it, at least temporarily, from the combustion engine (8) driving a generator (9), the exhaust gases from which are burnt in post-combustion mode in the boiler in cogeneration mode.
摘要:
A gas turbine engine includes a compressor, a combustor, and turbine enclosed in an engine case with the compressor having a plurality of alternating rows of rotating blades and stationary vanes. The gas turbine engine also includes a substantially circumferential groove formed in the engine case of the compressor section. The groove is substantially adjacent to a row of rotating blades to extract a portion of tip leakage flow from that row of blades and to route the extracted tip leakage flow to the turbine section for cooling turbine components. In the preferred embodiment of the present invention, the groove communicates with a plenum which communicates with the turbine section of the gas turbine engine via channeling pipes formed within the engine case.