RU16170U1 - GAS TURBINE POWER PLANT - Google Patents

Abstract

A gas turbine power plant containing a compressor with a drive, a turbine with an electric generator, an energy carrier-air interaction chamber, inlet and outlet ducts made in the form of pipes, an interaction chamber for spraying water into a finely dispersed aerosol equipped with a water supply system, characterized in that a compressor exchanger with a blower is placed at the compressor outlet, and a water heat exchanger with a pump for supplying water from the reservoir is located at the turbine outlet, both heat exchangers are equipped with Thermal contact with compressor housing and turbine housing.

Description

Gas turbine power station

The utility model relates to the field of energy, in particular, to systems for receiving electricity, can be used as a backup source of energy.

A well-known gas turbine power plant (see, Heat Engineering, Textbook for universities, M. Energoizdat, 1982, p. 197). It contains a compressor with a drive, a turbine with an electric generator, an interaction chamber of the energy carrier with air, inlet and outlet ducts made in the form of pipes. The disadvantage of such a power plant is that in winter, especially during severe frosts, when energy consumption increases, expensive fuel consumption increases, and air pollution from exhaust gases increases.

A gas turbine power plant is also known, containing a compressor with a drive, a turbine with an electric generator, an energy carrier-air interaction chamber, inlet and outlet ducts made in the form of pipes, and a device for spraying water into a fine aerosol equipped with a pump for supplying water is located in the interaction chamber Gas turbine power station. Patent of the Russian Federation for the invention No. 2125662, 05.20. 1997, prototype).

The disadvantage of the prototype is the low power density of the power plant.

This utility model addresses these shortcomings.

This gas turbine power plant can be used as a backup for winter conditions, like; stationary in cold regions like underwater, above ground, underground and mobile.

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The technical result of the utility model is to increase the specific power of the power plant, increasing efficiency.

The technical result is achieved by the fact that in a gas turbine power plant containing a compressor with a drive, a turbine with an electric generator, an interaction chamber of the energy carrier with air, inlet and outlet ducts made in the form of pipes, and in the interaction chamber there is a device for spraying water into a fine aerosol equipped with water supply system, a heat exchanger with a blower is located at the compressor outlet, and a water heat exchanger with a pump for supplying water from a reservoir is located at the turbine outlet, both heat the exchangers are equipped with elements of thermal contacts with the compressor housing and with the turbine housing.

The essence of the utility model is illustrated in the drawing, which shows a section of a gas turbine power plant in the case of its placement near a reservoir. The interaction chamber is made in the form of a pipe 1. Inside the pipe 1, a compressor 2 with a drive 3 and a turbine 4 are placed, to which an electric generator 5 is connected. A pipe 6 is connected to the inlet flange of the pipe 1 for air intake of the atmospheric gas relay, and an exhaust pipe 7 is connected to the output flange. Between the compressor and the turbine there are nozzles 8 equipped with a device 9 with a pump 10 for spraying water from a reservoir into finely divided aerosol. A heat exchanger 11, which is equipped with a blower 12 for supplying cooling air from the atmosphere and elements for reliable thermal contact with the compressor casing (not shown), is placed in a pipe 1 in a tayuka. In the pipe 1 is also placed a heat exchanger 13 with a pump 14 for supplying water from a reservoir. Heat exchanger 13 also

equipped with elements for reliable thermal contact with the turbine housing 4 (not shown in the drawing).

Gas turbine power plant operates as follows. After turning on the drive 3, the compressor 2 draws in the external cold air through the pipe 6 (at a temperature of -10 ° С - -70 ° С). In the compressor, the air is compressed from the atmospheric pressure of the RO to the pressure of the RK. Compressed air enters the interaction chamber 1 through the heat exchanger 11. Since the heat exchanger is cooled by outside air, the air temperature at the inlet to the interaction chamber will be close to the ambient temperature TQ. A. At the same time, water dust is injected into the interaction chamber 1 through the force 8, which cools and freezes during the time that the mixture of water and air passes through the interaction chamber 1, giving off heat to the cold air. As a result, the air temperature in the interaction chamber 1 rises from the initial temperature To to degrees (). When heated, the air flattens out and, passing through the turbine 4, performs useful work. Since the heat exchanger 13 is connected to a reservoir, the temperature of the air at the outlet of the turbine will be equal to the temperature of water C. Next, the air is discharged outward through the exhaust pipe 7.

Placement in the installation of tag exchangers 11 and 13 allows you to set the operation of the compressor 2 and turbine 4 in a mode close to isothermal. In this case, the useful work A will be equal to the difference

AT turbine and AK compressor operations:

p А- R In- АГ, where R is the universal gas constant.

In the prototype, the maximum allowable air compression in the interaction chamber 1 cannot exceed 1.5, In the proposed

The gas turbine power plant compression can reach values of 5-6. Therefore, the specific power per unit weight (size) of a power plant can be increased by a factor of 2–3, and therefore the efficiency also increases.

About 95% of the heat is released during the transition of water to ice, this transition occurs at a temperature of 0 ° C. Above this value, the temperature in the chamber practically does not rise.

We present the data of a gas turbine power plant with a capacity of 100 kW for the Yak) tsk region for when the temperature is -50 ° С, compression ratio 5. useful work, 5 kJ / (kg.sec). To create a power plant with a capacity of 100 kW, the cold air flow rate will be 40 kg / s, which is approximately 25 cubic meters, the water flow rate is 3 kg / s.

The design of the power plant has the following parameters. The interaction chamber 1 has a diameter of 1 m and a length of 3 m. The indicated air flow is carried out at a speed of 15 m / s, so the passage time of the chamber with air is 0.1 s. If the diameter of the drops is 0.1 mm, then their freezing time is less than OD per second. To avoid losses on the drives to the compressor and turbine, it is advisable to place them on one common axis.

When performing a sealing system and / or insulation, it is necessary to take into account the possibility of glaciation.

The main condition for the absence of glaciation is that the temperature of the chamber walls should be equal to + 3 ° С - + 4 ° С. If the power plant is placed in water, then this condition is satisfied automatically.

Claims (1)

A gas turbine power plant comprising a compressor with a drive, a turbine with an electric generator, an energy carrier-air interaction chamber, inlet and outlet ducts made in the form of pipes, an interaction chamber for spraying water into a finely dispersed aerosol equipped with a water supply system, characterized in that a compressor exchanger with a blower is placed at the compressor outlet, and a water heat exchanger with a pump for supplying water from the reservoir is located at the turbine outlet, both heat exchangers are equipped with Thermal contact with compressor housing and turbine housing.