GAS-PUMPING UNIT (GPU), GAS DUCT OF GPU EXHAUST TRACT AND INLET ASSEMBLY OF GAS DUCT OF GPU EXHAUST TRACT Russian patent published in 2018 - IPC F01D25/30 E04H12/28 

FIELD: gas industry.

SUBSTANCE: gas pumping unit (GPU), the gas duct of the GPU exhaust tract and the inlet assembly of the gas duct of the GPU exhaust tract. Group of inventions relates to the oil and gas field. GPU contains consistently reported through the working fluid: the air intake path, including the AFCS, the suction duct and the air intake chamber; gas turbine installation with an inlet device for supplying air from the air intake chamber to the entrance to the gas turbine engine, exhaust gas exhaust path, gas compressor. Duct is made in the form of a pipe, including the main horizontal and transition sections. In the inlet node of the exhaust path, the first section is made inclined with a rectangular cross section at the inlet and has the shape of a body transforming along the length to an exit circle in the plane of the coupling with the second section representing a curved outlet creating the angle of rotation of the duct pipe. Main section is made with a composite cross-section of the flow part and is framed at the ends with mirror-like third and fourth sections of variable shape. Main portion of the flue is formed from two side arcs of a circle connected on top and bottom by flat rectilinear inserts. In this case, the main and transition sections are made in compliance with the condition of equality of the cross-sectional areas of the flow part.

EFFECT: technical result of the group of inventions is to improve the reliability, efficiency and service life of GPU by improving the design, aerodynamic and energy parameters of the gas duct of the GPU exhaust path.

7 cl, 5 dwg