Purpose. Turboexpander-electric generator units based on jet-jet (TDA-SRT) and vortex (TDA-VT) turbines are designed to generate electrical energy from the energy of compressed gas or steam is currently irretrievably lost on regulators and pressure reducers
Scope. The development is applicable to gas distribution stations that serve to reduce gas pressure to the level required by the conditions of its safe consumption.
Advantages. Existing world analogues are characterized by relatively high capital costs that do not provide the minimum acceptable payback periods. The advantages of SRT allow creating TDA with a payback period of 1-2 years, cheaper, simpler in design and technology, reliable and easy to operate compared to TDA based on classic blade turbines.
Description. The main element of the TDA-SRT, determining its prospects and main advantages, is a bladeless jet-jet turbine (SRT). The principle of operation of the SRT is based on the transformation of the potential energy of compressed gas into the kinetic energy of the jet flowing out of the traction nozzle and located at some distance from the axis of rotation. The TDA-SRT consists of a turboexpander based on a jet-jet turbine; a single-stage reducer; a three-phase alternating current generator, which is an asynchronous electric motor; automatic control, monitoring and protection systems; a system for power connection and control of the energy produced.