RU2014115738A

RU2014115738A - METHOD FOR DISPOSAL OF THERMAL ENERGY PRODUCED BY THE HEAT ELECTRIC POWER STATION

Info

Publication number: RU2014115738A
Application number: RU2014115738/02A
Authority: RU
Inventors: Айрат Маратович Гафуров
Priority date: 2014-04-18
Filing date: 2014-04-18
Publication date: 2015-10-27
Also published as: RU2570133C2

Abstract

1. Способ утилизации тепловой энергии, вырабатываемой тепловой электрической станцией, включающий направление отработавшего пара из паровой турбины в паровое пространство конденсатора для конденсации на поверхности конденсаторных трубок, направление конденсата с помощью конденсатного насоса конденсатора паровой турбины в систему регенерации, отличающийся тем, что дополнительно используют систему маслоснабжения подшипников паровой турбины с маслоохладителем и конденсационную установку, состоящую из последовательно соединенных паровой турбины с производственным отбором пара и с электрогенератором, конденсатора и конденсаторного насоса, при этом дополнительно осуществляют утилизацию низкопотенциальной теплоты системы маслоснабжения подшипников паровой турбины и утилизацию высокопотенциальной теплоты пара производственного отбора, причем указанные утилизации осуществляют при помощи теплового двигателя с замкнутым контуром циркуляции, работающего по органическому циклу Ренкина, в котором в качестве охлаждающей жидкости используют низкокипящее рабочее тело, циркулирующее в замкнутом контуре, и который состоит из последовательно соединенных турбодетандера с электрогенератором, теплообменника-рекуператора, теплообменника-конденсатора и конденсатного насоса, при этом низкокипящее рабочее тело сжимают в конденсатном насосе теплового двигателя, последовательно нагревают в упомянутых теплообменнике-рекуператоре и в маслоохладителе, испаряют и перегревают в конденсаторе паровой турбины с производственным отбором пара, расширяют в упомянутом турбодетандере, снижают его температуру в уп�1. The method of utilization of thermal energy generated by a thermal power plant, including the direction of the exhaust steam from a steam turbine into the steam space of the condenser for condensation on the surface of the condenser tubes, the direction of the condensate using the condensate pump of the condenser of the steam turbine in a regeneration system, characterized in that the system is additionally used oil supply bearings of a steam turbine with an oil cooler and a condensing unit consisting of series connected a turbine with production steam extraction and with an electric generator, a condenser and a condenser pump, while additionally utilizing the low-grade heat of the oil supply system of the steam turbine bearings and utilizing the high-potential heat of the steam of production selection, these utilization being carried out using a closed-circuit heat engine operating on organic Rankine cycle, in which a low boiling working fluid is used as the coolant The circulating fluid in a closed circuit, and which consists of a turboexpander with a power generator connected in series, a heat exchanger-recuperator, a heat exchanger-condenser and a condensate pump, while the low-boiling working fluid is compressed in the condensate pump of a heat engine, is successively heated in the heat exchanger-recuperator and in the oil cooler. , evaporate and overheat in a condenser of a steam turbine with production steam extraction, expand in said turboexpander, lower its temperature in pack

Claims

1. The method of utilization of thermal energy generated by a thermal power plant, including the direction of the exhaust steam from a steam turbine into the steam space of the condenser for condensation on the surface of the condenser tubes, the direction of the condensate using the condensate pump of the condenser of the steam turbine in a regeneration system, characterized in that the system is additionally used oil supply bearings of a steam turbine with an oil cooler and a condensing unit consisting of series connected a turbine with production steam extraction and with an electric generator, a condenser and a condenser pump, while additionally utilizing the low-grade heat of the oil supply system of the steam turbine bearings and utilizing the high-potential heat of the steam of production selection, these utilization being carried out using a closed-circuit heat engine operating on organic Rankine cycle, in which a low boiling working fluid is used as the coolant The circulating fluid in a closed circuit, and which consists of a turboexpander with a power generator connected in series, a heat exchanger-recuperator, a heat exchanger-condenser and a condensate pump, while the low-boiling working fluid is compressed in the condensate pump of a heat engine, is successively heated in the heat exchanger-recuperator and in the oil cooler. , evaporate and overheat in a condenser of a steam turbine with production steam extraction, expand in said turboexpander, lower its temperature in pack -mentioned heat exchanger-recuperator and condensed in exchanger-condenser heat engine.

2. The method according to p. 1, characterized in that as the heat exchanger-condenser of the heat engine use either an air-cooled condenser, or a water-cooled condenser, or an air and water-cooled condenser.

3. The method according to p. 1, characterized in that as a low-boiling working fluid use liquefied propane C ₃ H ₈ .