Electricity generating device

 

(57) Abstract:

Device for the production of electricity, consisting of the main pipeline, the regulator, the gas and gas-expanding turbine generators and heat exchangers. Parallel to the gas flow regulator are connected to the gas heat exchanger for heating the gas before the gas-expanding turbine, gas-expanding turbine with electric generator, a heat exchanger for heating gas for gas-expanding turbine. The output of the gas turbine sequentially connected to the heat exchangers before and after the gas-expanding turbine. The gas-expanding power of the turbine should be 1.5-2 times the power of the gas turbine. The invention allows to create stand-alone electricity generating device for efficient use of the potential energy of natural gas. 1 Il.

The invention relates to the field of power engineering and can be used for electricity generation.

A device (the description of the invention to author's certificate N 1301990 A1 from 23.10.95 g), containing the main pipeline, a pressure regulator, a boiler with a firebox and flue gas tract, gatorshield trassinelli turbine.

A disadvantage of this scheme is the lack of prior gas-expanding turbine heat exchanger for preheating of natural gas, as well as the fact that the hot exhaust gases after the gas turbine is injected directly into the pipeline natural gas. The latter may cause an explosion.

The closest in technical essence to the invention is a device (Patent RU N 2091592 C1 from 23.08.94 g), containing the main pipeline, regulator, gas-expanding and gas turbine, a heat exchanger for heating the natural gas before the gas-expanding turbine due to the heat of exhaust gases of the gas turbine.

The disadvantages of this device is the lack of heat exchanger for heating gas for gas-expanding turbine. It should be noted that natural gas after gas-expanding turbine is cooled and has a temperature lower than the temperature of the flue gases from the heat exchanger located downstream of the gas turbine, and therefore heat is not fully used.

The purpose of the invention - the creation of Autonomous electricity generating device for efficient use of the potential energy of natural gas and the heat of its combustion.

The essence of the image is sustained fashion turbine generators, heat exchangers, and the new is that in parallel to the gas flow regulator are connected to the heat exchanger for heating the gas before the gas-expanding turbine, gas-expanding turbine with electric generator, a heat exchanger for heating gas for gas-expanding turbine and the gas turbine exhaust is consistently piped to the heat exchanger before gas-expanding turbine and heat exchanger for gas-expanding turbine, and power turbine gas-expanding should be 1.5-2 times more gas. The latter is necessary for maximum utilization of the heat of the exhaust gases in a gas turbine.

Installation of two heat exchangers before and after the gas-expanding turbine due to the need to increase the amount of heat transmitted from the hot exhaust gases after the gas turbine natural gas passing through the gas-expanding turbine. And more warm and natural gas before the gas-expanding turbine is heated over hot exhaust gases and cool the natural gas after the gas-expanding turbine is heated by exhaust gases are partially cooled in the heat exchanger, prescribed re is Bina compared to gas is explained by the following. The gas turbine has a coefficient of performance (efficiency) in the range of 30-37%, and 63-70% of the heat is carried away from the gas turbine exhaust gases. This heat must be used when working turbine gas-expanding at the expense of the natural gas heating in heat exchangers before and after the turbine. Considering the fact that natural gas after the heat exchanger installed for gas-expanding turbine must have a temperature of gas in the pipeline, and flue gas temperature should be minimum, the gas-expanding power of the turbine will be 1.5-2 times more gas. It should be noted that a part of the gas-expanding power of the turbine is achieved by using the potential energy of natural gas.

Diagram of the device shown in the drawing.

The device comprises a main pipeline 1, a gas turbine 2 with generator 3, gas-expanding turbine 4 generator 5, the heat exchangers for heating gas 6, 7, the flow regulator 8.

The device operates as follows.

The gas from the main pipeline 1 enters the gas turbine 2, is burned inside her and actuates leg. The gas from the main pipeline 1 flows into the heat exchanger 6 and is heated. Further, the gas passing through the gas-expanding turbine 4, actuates a generator 5, is cooled and enters the heat exchanger 7, where it is again heated and sent to the consumer. The regulator 8 is required for circuit operation at variable modes and with non-gas-expanding turbine.

Through the use of a range of technological solutions is provided a device for highly efficient production of electricity.

Device for the production of electricity, consisting of the main pipeline, the regulator, the gas and gas-expanding turbine generators and heat exchangers, characterized in that parallel to the gas flow regulator are connected to the gas heat exchanger for heating the gas before the gas-expanding turbine, gas-expanding turbine with electric generator, a heat exchanger for heating gas for gas-expanding turbine, and the output of the gas turbine sequentially connected to the heat exchangers before and after the gas-expanding turbine, and power turbine gas-expanding should be 1.5-2 times more powerful

 

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FIELD: electric power and chemical industries; methods of production of the electric power and liquid synthetic fuel.

SUBSTANCE: the invention presents a combined method of production of the electric power and liquid synthetic fuel with use of the gas turbine and steam-gaseous installations and is dealt with the field of electric power and chemical industries. The method provides for the partial oxidation of hydrocarbon fuel in a stream of the compressed air taken from the high-pressure compressor of the gas turbine installation with its consequent additional compression, production of a synthesis gas, its cooling and ecological purification, feeding of the produced synthesis gas in a single-pass reactor of a synthesis of a liquid synthetic fuel with the partial transformation of the synthesis gas into a liquid fuel. The power gas left in the reactor of synthesis of liquid synthetic fuel is removed into the combustion chamber of the gas-turbine installation. At that the degree of conversion of the synthesis gas is chosen from the condition of maintenance of the working medium temperature at the inlet of the gas turbine depending on the type of the gas-turbine installation used for production of the electric power, and the consequent additional compression of the air taken from the high-pressure compressor of the gas-turbine installation is realized with the help of the gas-expansion machine powered by a power gas heated at the expense of the synthesis gas cooling before the reactor of synthesis. The invention allows simultaneously produce electric power and synthetic liquid fuels.

EFFECT: the invention ensures simultaneous production of electric power and synthetic liquid fuels.

2 cl, 2 dwg

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