Peak hydrogen steam turbine plant

FIELD: machine building.

SUBSTANCE: peak hydrogen steam turbine plant includes steam turbine and compressor, hydrogen and oxygen storage tanks and combustion chamber, which are installed on one shaft. Steam turbine and compressor are connected by means of system of steam pipelines so that closed steam circuit is formed. Combustion chamber is located before steam turbine and connected by means of pipelines to receivers. Regenerative heat exchanger and cooler are included in closed steam circuit. Condensing turbine with condenser is connected to steam pipeline connecting the steam turbine to compressor. Electrolysis unit is connected to condenser via pipeline on which there mounted is water pump, and interconnected with hydrogen and oxygen storage tanks via pipelines on which gas compressors are installed. Plant capacity is controlled by changing the hydrogen and oxygen supply to combustion chamber and steam discharge from closed circuit to condensing turbine.

EFFECT: increasing the plant efficiency and decreasing thermal stresses in turbomachines at variable loads due to almost unchangeable temperature in closed steam circuit.

1 dwg

 

The invention relates to the field of energy, namely heat.

Known peak hydrogen steam turbine (Shpilrain EE, S. p. Malyshenko "Introduction to hydrogen energy", 1984, s)containing the electrolyzer, gas compressors, receivers for storage of hydrogen and oxygen, the combustion chamber for the combustion of hydrogen in oxygen atmosphere, condensing turbine with a condenser, from which the condensate is pumped back into the cell. The regulation capacity of this installation is carried out by water injection per combustion chamber. This leads to a significant decrease in efficiency in all modes of operation and to sharp fluctuations in steam temperature before the turbine, which causes changing the capacity of the considerable thermal stress in the turbine.

The objective of the proposed solutions is to increase efficiency in all modes of operation and the reduction of thermal stresses in the turbomachine when changing its power.

This objective is achieved in that the installation contains mounted on the same shaft steam turbine and a compressor connected by a system of steam pipes so that there is formed a closed steam circuit, a receiver for storing hydrogen and oxygen, a combustion chamber located in front of the steam turbine and is connected by pipelines to the receivers, regenerate the hydrated heat exchanger and cooler, forming part of a closed steam circuit, condensing turbine with condenser connected to the steam pipe connecting the steam turbine with a compressor, an electrolyzer connected to the condenser piping on which installed the water pump, and is connected with the receiver for storing hydrogen and oxygen through the piping on which installed gas compressors.

The drawing shows a diagram of the hydrogen steam turbine made according to this invention.

The system includes a steam turbine 1, mounted on the same shaft with the compressor 2 and a generator 3. Before the turbine 1 is set to the combustion chamber 4, connected by pipes 5, 6 are installed control valves 7, 8, receivers for storage of hydrogen and oxygen 9 and 10, respectively. The steam line 11 connecting the turbine 1 and the compressor 2 connected regenerative heat exchanger 12 and the cooler 13, and the steam line 14 and valve 15, connecting it to the condensing turbine 16, mounted on the same shaft with the generator 17. At the outlet of the turbine 16 is a capacitor 18 connected to the electrolyzer 19 pipeline 20 on which is mounted the pump 21. The cell 19 is connected to the receivers 9 and 10 by the piping on which installed gas compressors 22 and 23.

PI the new hydrogen steam turbine operates as follows.

After the turbine 1 exhaust steam passes through the regenerator 12 and the cooler 13 where the temperature is reduced, and then sent to the compressor 2, which is a compression. Next, the steam passes through the regenerator 12, where its temperature increases, and is supplied into the combustion chamber 4. During the process of burning hydrogen in oxygen atmosphere, which takes place in the combustion chamber 4, is formed pairs with very high temperature, which is then mixed with the main steam flow, resulting in its temperature decreases. Steam enters the turbine 1, where he is doing work. Turbine 1 rotates the compressor 2, and the excess part of its capacity effects the drive of the electric generator 3. Part of the steam taken from the steam line 11 connecting the turbine 1, a compressor 2, and enters the condensing turbine 16, which is driven electric generator 17. In the condenser 18, prescribed for the turbine 16, there is condensation of steam. The condensate pipe 20 is installed on the water pump 21 is supplied to the electrolyzer 19, in which the peak load of the grid is the electrolysis of water. Formed during this process, hydrogen and oxygen are compressed in the gas compressor 22 and 23, and then arrive at the receivers 9 and 40, of which during periods of peak loads on the network via pipelines 5 and 6 serves to Cam the re combustion 4. The plant capacity, which depends on the pressure and mass flow in a closed steam circuit, is regulated by the valve 15 installed on the steam line 14, and the valves 7 and 8 to supply hydrogen and oxygen to the combustion chamber 4. When changing power remain virtually unchanged teleperedachi in the compressor 2 and the turbine 1, and triangles speed and efficiency of these turbomachines. As the temperature of steam in a closed steam circuit also remains virtually unchanged, you can quickly change the power plant without any significant thermal stresses in the design of turbomachines.

Peak hydrogen steam turbine, containing mounted on the same shaft steam turbine and a compressor connected by a system of steam pipes so that there is formed a closed steam circuit, a receiver for storing hydrogen and oxygen, a combustion chamber located in front of the steam turbine and is connected by pipelines with these receivers, the regenerative heat exchanger and cooler, are part of a closed steam circuit, condensing turbine with condenser connected to the steam pipe connecting the steam turbine with a compressor, an electrolyzer connected to the condenser by a pipe, on which is mounted the water pump, and is connected with receive the AMI for the storage of hydrogen and oxygen through pipelines, have gas compressors.



 

Same patents:

FIELD: power industry.

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FIELD: mechanical engineering.

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1 dwg

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1 dwg

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