Gas recovery turbine for power plants
Natural gas is transported to users at pressure of 7.5-5.6 MPa and is distributed within residential areas at pressure of 1.2 MPa. However, the pressure required at consumers (thermoelectric and hydroelectric power stations) is 0.2-0.4 MPa or less. The surplus potential energy, which is lost at throttling devices of gas expansion stations and gas regulating rooms, can be used for generation of additional electric power and for process purposes. For example, the gas consumed by a 800 MW steam turbine set with a pressure differential of 1.1 -0.17 MPa can give additional power of over 11 MW.
Long-standing experience in design and manufacture of gas recovery turbines allowed us to create ТГУ-11 turbine.
The gas recovery turbine type ТГУ-11 represents a multistage expansion turbine, which generates electric power using excess pressure of the natural gas supplied as fuel to boilers of thermal power stations (TPSs).
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JSC "The Ural Turbine Works"Description
The turbine is installed in parallel with throttling valves of the gas expansion station in the pipeline feeding gas to a TPS.
To raise power, efficiency and reliability, the natural gas is heated at the turbine inlet in a surface heat exchanger using low-potential heat of the TPS.
To raise power, efficiency and reliability, the natural gas is heated at the turbine inlet in a surface heat exchanger using low-potential heat of the TPS.